Premium Fully Automatic Telescopic Seating System
Case studies from KOTOBUKI SEATING GROUP
Premium Telescopic Seating Systems create multifunctional facilities that revitalize communities
Disaster Resilience
Shin Nippon Machinery Hall ( Kure Civic Hall ) INTERVIEW
KOTOBUKI SEATING GROUP's fully automatic telescopic seating system can smoothly transform a single hall from a space with seating to a flat floor space. Our designs have been playing an active role not only in Japan and other parts of Asia, but also in North America, Europe, and across the world. Today, telescopic seating (also known as retractable seating) is not only required to play a role in complex multifunctional facilities. It can also enhance the value of the audience’s experience by incorporating premium seat designs that resonate with the local community. For example, a high quality culture and art hall with a comfortable auditorium could be transformed into a safe and spacious disaster shelter by retracting the seating. KOTOBUKI SEATING GROUP has been engaged in the development of telescopic seating systems since the 1950s, and started manufacturing electrically operated products in the early 1980s. Our focus on the advancement and popularization of telescopic seating is based on our belief that good seating can create a truly people-centred environment. We have enhanced our range in recent years with products that are not only earthquake-resistant, durable, safe, and easy to operate, but also offer even better quality and seating comfort. This publication contains many case studies of our telescopic seating system installations. We hope you find this information helpful when considering how you will upgrade and reimagine facilities to revitalize your community.
INTERVIEW
Shin Nippon Machinery Hall ( Kure Civic Hall )
Disaster resilience
P.02
Premium telescopic seating systems create multifunctional facilities that revitalize communities
P.06 Kamaishi Civic Hall TETTO, Hall A
P.08 Saiki Shiroyama Sakura Hall, Large Hall
P.10 Aubade Hall ( Toyama City Theater for Performing Arts ), Middle Hall
P.12 Hanaoka Seishu Memorial Hospital, Seishu Memorial Auditorium
P.14 Gamagori Shinkin Bank Head Office, Community Hall
P.16 Minato Terrace ( Sakaiminato Civic Center ), Civic Hall
P.18 Shinkamata 1-chome Complex, Kam Kam Shinkamata, Multi-purpose Hall
P.20 Naha Cultural Arts Theater NAHArt, Small Theater
P.22 Shikochu Hall ( Shikokuchuo City Civic Cultural Hall ), Sub Hall-Karuta
P.24 University of Tsukuba Hospital Kirinoha Mall, University of Tsukuba Hospital Auditorium
Optimizing facility space utilization
P.26
Case studies for renewals
P.28
Ishikawa Industrial Promotion Center, Large Hall
Nissay Training Center, Auditorium
Elgala Hall, Main Hall
Bunkyo Civic Center, Small Hall
PRODUCTS
Introduction to the Premium Fully Automatic Telescopic Seating System
P.30
Disaster resilience
INTERVIEW
Shin Nippon Machinery Hall, a city hall complex in Kure City, Hiroshima Prefecture, Japan
Toshio Sakine, Senior Manager, Cultural Promotion Section, Culture and Sports Department, Kure City
It has been almost eight years since Kure City in Hiroshima Prefecture built a new city hall with the aim of disaster resilience. In 2018, the Western Japan Torrential Rainfall, the greatest 72-hour rainfall in Kure’s recorded history, caused a series of landslides and disrupted major road and railway networks.
When the new city hall was built, the Shin Nippon Machinery Hall on the first floor was designed for use as a disaster protection base for self-defense forces, police, and firefighters. Since the seating on the first floor can be stowed away to create a large, flat floor space, the hall has served as an arrival point for relief supplies. Because the hall was integrated with government offices, it allowed seamless collaboration during such emergencies.
We interviewed a government official about ensuring the city hall was prepared for unexpected situations, and about the role of retractable seating.
*The name of the hall was changed to “Shin Nippon Machinery Hall” on 1 October 2019.
Seamless collaboration in response to an emergency
What is the story behind the new city hall?
The old city hall was completed in 1962. Our city hall must function as a central base for countermeasures and reconstruction in the event of a major disaster, but the old city hall had deteriorated and there were concerns that it would be unable to withstand events on the scale of the Great Hanshin Earthquake and the Great East Japan Earthquake. While plans for a new building had been proposed for a long time, they were put on hold due to financial difficulties. However, this time, with the support of a financial resource called the Municipal Merger Special Bond, we were able to build the long-awaited disaster-resistant city hall. It is a government complex equipped with government offices, an assembly secretariat, and a civic hall.
Previously, the government offices were spread between the old city hall and two other buildings. This caused inconvenience to the public, as they sometimes had to go back and forth between different locations. At the new city hall, however, all functions were centralized with our goal of a one-stop service, making it also easier for us to work with staff at different departments. I think we can now offer a fuller range of services.
I understand that there must have been some difficulties in moving from the old to the new city hall.
The old city hall and the civic center used to stand side by side on the current new city hall site. So, first of all, the civic center was demolished and the land was cleared, and the construction of the new city hall started on this block of land. During construction, we conducted administrative operations in the old city hall, and after the new one was built, it took us two weeks to move out of the old city hall and our other government buildings. The new city hall was completed in December 2015, with the completion ceremony taking place in January the following year. The Shin Nippon Machinery Hall on the first floor was opened in March 2016.
Retractable seating was included that can be moved and stowed away during times of disaster.
― What can you tell us about the Shin Nippon Machinery Hall in the new city hall?
The hall was constructed as the successor to the previous civic center. Given that self-defense forces, police, and firefighters would need a large space as a disaster protection base in the event of an earthquake or other disaster, we decided to make all seating on the first floor movable so that seats can be stowed away to create flat floor space.
It has been three years since the new hall was opened, and the most frequent events are lectures about government affairs, in which PowerPoint presentations are usually projected on a screen while the speaker gives lectures. The hall was equipped with a large 400-inch screen and a high-performance projector, and the screen is well known for its ease of viewing, even in a brightly lit hall. Other events include dances and plays by kindergarten children, as well as concerts by piano classes.
The seating capacity of the hall is approximately 600. I think it is a good size for the public to use. Kure City has a larger hall, the Kure City Cultural Hall, with approximately 1,600 seats, and a smaller hall, the Tsubaki Kaikan Music Hall, with approximately 200 seats. The number of seats for the new hall was determined by finding a good midpoint between these two other halls. It is smaller than the previous civic center, which had approximately 900 seats, but the stage is wider and can accommodate a greater range of events.
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How comfortable is the retractable seating?
It is very comfortable. I was in charge of many different halls in Kure before being appointed to the Shin Nippon Machinery Hall in the second year of its opening. It was the first time I had been involved in a hall with a retractable seating system. I used to favor fixed seating, but I have found that the retractable seating is virtually indistinguishable from fixed seating when you walk through the auditorium in a normal way. As you’d expect, if you run up the steps fast, there is a little vibration. But I think visitors have the impression that this hall is no different from one with fixed seating. It seems the public is aware that the seating is retractable, but they don’t actually see it moving, so we sometimes hear people say things like, “I wonder how the system works.”
Also, because the size of an individual seat and the distance from the seat in front were increased a little, we often receive feedback that the seating is quite relaxing to sit on and easy to walk through.
Thank you very much. As for the first floor seating area, which layout do you use the most?
In the majority of cases, all the seats are set out. A few times a year, however, all of the seats are stowed away and the flat floor space is used as an exhibition venue for culture festivals. I have proposed a layout in which only the front section or the rear section of the first-floor seating is stowed, but this has not yet been implemented. I would like to try it one day.
The hall served as a receptiom point for relief supplies on the day after the Western Japan Torrential Rainfall.
I heard that the hall served as the arrival point for relief supplies when the Western Japan Torrential Rainfall occurred in July 2018.
When the new city hall was built, we envisaged the Shin Nippon Machinery Hall becoming a disaster protection base for police and self-defense forces. Disaster response headquarters were to be set up on the floor above, with the Hall becoming a place for people to discuss how to move forward in response to decisions made at the headquarters. Since LAN cables run through the walls on both sides, we planned to stow the seats away and set out rows of desks with computers and monitors.
The gymnasium next door was originally the reception point for relief supplies in the event of a disaster, but at the time of the Western Japan Torrential Rainfall, the gym was undergoing renovation and we were unable to use it. We found that this hall was the only other space with a large flat area. Since it also has a loading bay, large trucks could pull up alongside. We stowed away all the seats, put down blue tarps, and opened the sliding wall at the back of the hall, preparing the hall to serve as a place to receive emergency supplies.
I think the acceptance of supplies started the day after the disaster occurred. A lot of supplies were delivered from all over the country, so we sorted them into different areas: food and drink, water, blankets, and so on. Large trucks full of supplies arrived, and we carried the cardboard boxes out by forming a line of people, then delivered them to the affected areas as required. When transporting goods, the mobility of the self-defense forces was really dependable. Throughout August, the hall continued to play the role of reception point for relief goods, and to be honest, I don’t think the gymnasium before its renovation could have provided the same level of support as the hall did.
Could you give us more details?
First of all, we had to manage the expiry dates of food that arrived as relief supplies. We initially received a large quantity of items with expiry dates, such as bread. We delivered them to hospitals and other healthcare institutions, which were the most in need. However, these facilities didn’t have space to store large quantities of goods. We still had plenty of food supplies available, which had to be stored properly until distribution. We kept the hall air conditioned 24 hours a day. The temperature was set to about 19°C. It was an alternative to a fridge. Since we had not used the air conditioning for such a long time, we were worried, but it worked fine.
Also, we were told we couldn’t install the ice machine anywhere where we didn’t have access to water supply and drainage. This gave us a headache, but we managed to install it in the washing machine space in the dressing room. The gymnasium before the renovation didn’t have air conditioning and it would have been impossible to keep the food supplies properly stored during those very hot days.
Do you think the presence of the Shin Nippon Machinery Hall and the fact that the city hall was a complex facility contributed to the successful outcome?
Yes, exactly. There are many positive aspects of having the new city hall and the Shin Nippon Machinery Hall. Because government office functions are now integrated, it is easier for us to cooperate with each other. I think it was really significant that the hall could serve as a reception point for emergency supplies, and that city hall staff were right next door and helped with bringing in supplies after a single call from our announcement system.
In the past, Kure City was once cut off from the rest of the area due to a typhoon. But I had never expected a disaster as bad as this one. If the old city hall had remained the same, the basement would have flooded, and all the mechanical systems would have been ruined. A place like a city hall must be reliable, but it is horrifying to think of what we would have done with no electricity. It was indeed a blessing in disguise that we had a new city hall that was constructed to be a disaster-resilient government building. I believe that the city hall fulfilled its function as a disaster response headquarters.
Integrating the city hall and the cultural center brings only benefits
You saw the true value of the Shin Nippon Machinery Hall in the event of such a disaster, so, based on your experience, can you share your opinion again on the features of having a city hall and a cultural center in one place?
From the perspective of a local government, I can only see the benefits. Because municipal departments and staff members are in the same building, it is easy for us to cooperate with each other, regardless of the situation, at all times or in an emergency, which is a very good thing. The most frequent municipal events can be on themes as diverse as healthcare and tax, but we can bring necessary items on a trolley without the hassle and time of driving a car to bring them in and out. If someone asks for advice, we can come and help each other right away.
― Are there any downsides to having them integrated?
To be honest, as for civic hall functions, I sometimes think it would be more convenient to have the hall separate from the government office building. For example, we have to detach a ticket from its stub for paid shows, but the entrance and exit area of the hall is shared with the city hall. As toilets used by visitors who have nothing to do with the show are also located close to the shared area, we have to make sure that people don’t accidentally enter the hall, for example by having a security guard or a door attendant standing there at all times.
Also, we don’t have a lobby that looks like a lobby, so it may be difficult to sell goods at events. Goods sales take place in the corridor outside the hall, so there is a possibility that the traffic flow gets mixed up with the one for visitors to the city hall. Given that people who aren’t watching the show can still purchase the goods, this could be an advantage though.
I see that ingenuity is needed when holding paid shows in the hall.
Yes. The biggest advantage for people who hire this hall is the low usage fee and the availability of professional equipment even for those on a low budget. Currently, many performances are free of charge, such as kindergarten recitals and study group presentations, but if paid performances increase in the future, we want to be able to create more efficient traffic flow.
After three years since the opening of the building, what are your prospects for the future?
This year, we are planning to make some changes to the retractable seating’s storage position.
After the seats are folded, the retractable seating unit is shifted onto the stage to create a flat floor space, but when the unit is shifted onto the stage, it is positioned exactly where the screen comes down. We are planning to allow the retractable seating to be stowed a little further back into the stage so that we can put the screen down to the flat floor. Then, we would be able to use the flat space for events like film screenings, as well as exhibitions, and we could also project messages onto the screen in the event of an emergency.
We started exploring these options as we saw the possibilities while using the hall. I think that as we gain further experience, we will see more possibilities.
― It’s the evolution of the hall, isn’t it? We look forward to seeing your successes in the future. Thank you very much.
Date of interview: 7 January 2019.
Photos:•The hall served as a place to receive relief supplies when torrential downpours hit western Japan (photo provided by Kure City). •When the retractable seating on the first floor is stowed away, the hall can be used as a large flat floor space. ••The seating on the first floor can be stowed on the stage. The front part of the seating is manually moved by being lifted with air pressure, while the rear part is folded
Location: Hiroshima Prefecture, Japan
Owner: Kure City
Opened: March 2016
and moved by electrical operation. The Shin Nippon Machinery Hall can accommodate a wide variety of events, including lectures and concerts. The hall is also equipped with a retractable seating system that allows multifunctional use. When the seats are deployed, they are used as spectator seating, and when stowed away, the space is used as a flat floor. It has been utilized not only for conventions and other similar events, but also as a disaster management base in the event of a disaster.
Seating Capacity: 581 (Retractable seats 207) Facility Information Facility Overview Details
Kamaishi Civic Hall TETTO, Hall A
A comprehensive support hub that brings new life to the city and fosters civic culture
Rebuilding a Civic Hall damaged by the Great East Japan Earthquake
Kamaishi City, Iwate Prefecture, is the birthplace of Japan's modern steel industry. In 2011, the town was severely damaged by the tsunami caused by the 2011 Great East Japan Earthquake. The following year, the Kamaishi Future Town Project was drawn up to restore the town to its former glory.
The project to build public housing and schools set out to create a vibrant recovery that would motivate people to return and visit the city. The sixth part of the project saw the successful reconstruction of the previously damaged civic hall.
Kamaishi Civic Hall TETTO—Bringing people together
The former Kamaishi Civic Cultural Hall was opened in 1978 with the first performance by the Kamaishi Symphony No. 9 Choir. For 33 years, the town’s residents enjoyed events at the hall. But after March 11, 2011, it had to be demolished due to tsunami damage caused by the Great East Japan Earthquake.
The newly built Kamaishi Civic Hall TETTO is a comprehensive center for civic culture that features a range of programs related to culture, art, and revitalization. It is designed to support the welfare of residents and advance the city's culture. The hall is often just referred to as TETTO. The name is a combination of two meanings. The word "tetsuto" or "tetto" relates to iron and steel, reflecting Kamaishi’s deep roots in that industry. The Italian word "tetto” means roof.
On the same site as the Kamaishi Information Exchange Center, which includes meeting rooms, a public studio, and multipurpose shared spaces, TETTO is freely open to the public. A large glass roof covers the plaza between TETTO and the Kamaishi Information Exchange Center. The plaza serves not only as a through route for those shopping at nearby stores and shopping arcades, but also as a place for residents to sit down and relax.
Facility Overview
Kamaishi Civic Hall TETTO, newly built after the Great East Japan Earthquake, is equipped with Hall A (large), Hall B (small), a gallery, meeting rooms, practice studios, and Japanese-style rooms. It has been used for a wide range of events, including concerts, plays, performances, and exhibitions, as well as serving as a place for the public to get together and relax.
A fully-fledged theater hall that can be tranformed into a large flat-floor space connected to a public square
Theater seating with excellent sightlines and comfort even during long performances
TETTO has two different-sized halls, Hall A and Hall B. The seats used in Hall A, which is a theater, are simple, yet full of ingenuity to create a comfortable seating experience. The three-dimensionally curved backrest conforms to the body and firmly supports the entire back. The firmness of the urethane foam in the seats has been adjusted to provide comfort when seated. In addition, a specially shaped spring, engineered to distribute body pressure, is incorporated. This helps to maintain comfort even after long periods of being seated. The armrests are flat and neatly shaped to accommodate people of all sizes.
Another feature of this hall is that the stage can be easily seen from every seat. Seats are spaced efficiently with a seat pitch of 900 mm, and more than half of the seating area is designed with a steep rake so that the stage feels close, even to those at the back. Balcony seats, which are located close to the stage but often face sideways, tend to force the audience to twist their body to watch the performance. However, TETTO has unique balcony seats that face toward the stage. This allows audiences to maintain a natural posture while watching the performance.
Retractable seating twinned with sliding walls creates a large
flexible space
The seats feature six different types of upholstery, ranging from black to gray, arranged in a striped pattern. The interior has generous amounts of wood to give the hall a luxurious yet relaxed feel.
On the first floor, theater seats are mounted on a combination of retractable platforms and rolling wagons. This allows the space to be both a fully-fledged hall and an open, flat space. When the retractable seats and wagon seats are stored at the front of the hall, a flat floor is created. The sliding wall at the rear of the hall can also be opened to create one continuous space from the foyer to Hall A. In addition, by opening the sliding wall that divides the foyer from Hall B and the plaza behind it, an even bigger space made up of Hall A, the foyer, Hall B, and the plaza, can be created. TETTO is equipped with a multipurpose hall that can be used for a great range of community events, from seated concerts to events on the flat floor.
In December 2017, six years and nine months after the earthquake, TETTO's new history began in spectacular fashion with the resounding voices of Kamaishi's Symphony No. 9 Choir. Their singing has continued without interruption since the disaster.
Facility Information
Location: Kamaishi City, Iwate Prefecture, Japan
Owner: Kamaishi City
Opened: April 2018
Seating Capacity: 838 (Retractable seats: 288)
Saiki Shiroyama Sakura Hall, Large Hall
The residents’ favorite cultural complex can be reconfigured for each event
Utilizing a single hall for a range of events from concerts to sports
In October 2020, Saiki Shiroyama Sakura Hall was opened in Saiki City, Oita Prefecture, Japan. It is a cultural exchange complex equipped with large and small multipurpose halls for a variety of events, as well as space for dietary education activities, childcare and child growth support, and civic collaboration.
In the large hall, facilities for multipurpose use of the space were introduced, such as a movable proscenium, sound reflectors, balconies, and retractable seating. When the hall is set up in a proscenium style with theater drapes and stage curtains, it becomes a space suitable for lectures, theatrical performances, and similar events. Alternatively, a “shoebox” style that offers excellent acoustics is suitable for concerts and other musical performances. The hall transforms itself into a suitable configuration according to the intended use. By stowing the audience seating and making the floor flat, it can also be used as a venue for exhibitions and sports events.
A mix of seating types to suit each area
The first floor consists of 3 types of seating. There are 8 rows of wagon seating that can be lowered and stowed under the floor via a lift system, fully automatic retractable seating that can be deployed and stowed away using a remote controller, and manually operated retractable seating. The decision to install removable seating was made after the city officials and a design firm visited local multipurpose halls, as well as KOTOBUKI SEATING’s showroom. The seating type they selected was THEATRE MORE PREMIUM which features the same quality and comfort as fixed theater seating and satisfies the acoustic requirements even of classical music concerts.
All the seating was specially designed for the Saiki Shiroyama Sakura Hall. When looking out over the entire hall from the rear of the seating area, it is very impressive to see the angular wooden louvers randomly arranged on the wall and the backrest panels aligned as if corresponding to the louvers. The combination of the natural wood surface and deep pink upholstery makes for a beautiful auditorium.
The chairs’ backrests are angled to allow easy passage through the horizontal aisles and are equipped with generous three-dimensional cushions to support the posture of the audience. Serpentine springs with excellent body pressure dispersion are employed inside the seats ensuring a comfortable seating experience, even during long hours of viewing. The fixed seating on the second and third floors is of the same design. The backrests are slightly more upright to allow the audience to see the stage more easily from higher floors.
Premium theater seating with a huge choice of features
Better
space utilization with retractable seating
designed to feel like fixed seating
A retractable seating system (also known as a telescopic seating system) is generally equipped with handrails at the left and right ends of the unit. This time, however, the whole unit was designed to reach all the way to the walls of the hall. Eliminating the handrails creates a higher-quality aesthetic but also helps the retractable seating area to feel more permanent.
The retractable seating has a total of 319 seats in 10 rows, but can also be set up as 145 seats in 7 rows using the middle tier specification, in which only the front section is deployed. In addition, particular blocks on the left and right of the front row are equipped with removable seating with a special mechanical unit, which enables the space to be used as wheelchair viewing areas. These combinations, combined with the deployment or stowage of the wagon seats in front of the retractable platforms, make several seating layouts possible.
Once all the seating is stowed, the first floor transforms into a flat space, which becomes easily accessible from the small hall and the art plaza located on the same floor.
Facility Overview
The cultural exchange complex, Saiki Shiroyama Sakura Hall, features a segmented, sloping roof that blends in with the surrounding old townscape, temples, and shrines. The complex is made up of various spaces that promote citizen engagement, including large and small multipurpose halls, a childcare support facility, a community development and exchange space, and studios. The large hall is a multipurpose hall consisting of movable seats, but has excellent acoustic properties and stage mechanisms to hold full-scale concerts. It was selected as the venue for the 22nd Music Festival Argerich’s Meeting Point in Beppu in 2021.
Photos:•Hall can also be used as a venue for exhibitions and some sports events by stowing away the seating and using it as a flat floor space. •The open, modern exterior fits in well with the local area. •The multipurpose hall has excellent acoustic properties and stage mechanisms suitable for hosting full-scale concerts. •THEATRE MORE PREMIUM features the same quality and comfort as fixed theater chairs. •The backrests of the fixed seats on the second and third floors are slightly more upright, allowing the audience to see the stage easily from higher floors. Chairs on the upper floors and retractable seats on the first floor are of the same design, creating harmony throughout the hall. 5 4 1 2 3
Facility Information
Location: Saiki City, Oita Prefecture, Japan
Owner: Saiki City
Designed by: Kume Sekkei
Opened: October 2020
Seating Capacity: 916 (Retractable seats: 272)
Aubade Hall ( Toyama City Theater for Performing Arts ), Middle Hall
A retractable seating system featuring authentic theater chairs created a premium space with outstanding functionality
The citizens’ long-awaited ‘perfect’ hall was born
Opened in 1996, Aubade Large Hall (Toyama City Theater for Performing Arts) has become one of the leading halls for large-scale stage performances in Japan. A variety of performances, such as operas and musicals, have been held and the audiences are always full of life.
On July 1, 2023, the long-anticipated Medium Hall was opened on a lot next to the Large Hall. Its maximum seating capacity is 652 seats, about one-third the capacity of the 2,196-seat Large Hall. The Medium Hall serves as a cultural hub where residents can gather together and watch performances more informally. With the completion of the Medium Hall, Aubade Hall has been upgraded to a facility that can accommodate the diverse needs of the public.
The flexibility to adapt to new ideas
Having supplied seats for the Large Hall, KOTOBUKI SEATING was selected to fit out the seating area in the Medium Hall. The Medium Hall has a multi-layered style with four levels of audience seating.The distance between the stage and the audience is close enough for the audience to directly experience the facial expressions and breathing of the performers. All the seating on the first floor is movable, consisting of THEATRE MORE PREMIUM retractable seating, wagon seating, and removable seating.
THEATRE MORE PREMIUM is KOTOBUKI SEATING’s highest grade of retractable seating, equipped with authentic theater seats. These seats can be easily deployed and retracted by electrical operation. Wagon seating allows the entire unit to be moved with the seats in place. By changing the direction of the wagon, it is possible to create layouts for the center stage. The removable seating also can be detached from the floor to make a runway, special seating area, or any other arrangement.
Combining different seating types with these features enables users to turn the space into as many as six different layouts. Furthermore, the sliding wall at the back can be opened up, creating a large open space that connects the entrance area and the hall. As a versatile space, the halls can be further adapted to accommodate new ideas put forward by the public.
Seating to suit diverse audiences, in terms of design, comfort, and barrier-free accessibility
Seating
designed for safety and individuality
The seating area was furnished with specially designed seats born from the uncompromising commitment of the designer. The most eye-catching feature is the armrests. They are normally shared by people sitting next to each other, but these seats offer armrests dedicated to each person, helping the seats to feel more individual. The legs have a simple ladder shape that gives a wider view when looked at from the aisle side. Because the hall was primarily intended for theater use, the design was inspired by the image of a traditional playhouse with small chairs lined up one by one. The seating upholstery is in two different colors, brown and gray, with a gradation towards the upper floor. Since the back of the seat was designed not to show the wooden edge when viewed from the front, visitors can experience the the smooth change of tone created by the two colors. With deep tones used throughout the hall, the colors of the interior wooden louvers and the seating upholstery complement one another, and add warmth to the space.
Functionality and barrier-free accessibility were taken into account while great attention was paid to comfort. The “Spacia” chair was chosen throughout. Spacia’s seats have a distinctive triangular shape when viewed from the side. This shape allows the audience to naturally move their legs back and forth, preventing blood flow from being inhibited during a long performance. This triangular seat design also allows the audience’s legs to be pulled in right under their bodies, making it easier for them to stand up and sit down.
Handholds were placed on the backs of the seats located beside the aisle on the first floor. Naturally integrated into the backrest board, the handholds are unobtrusive, but provide valuable assistance for audience members on the steps. These theater seats are easy to use for audiences of all ages.
Facility Overview Facility Information Details
Opened in 1996, Aubade Hall’s Large Hall has 2,196 seats and is suitable for various genres, such as opera, musicals, plays, ballet, and orchestra performances. With three different stages—main, rear, and side stage, the Hall is one of the leading venues for large-scale stage productions in Japan. The Middle Hall, built 27 years after the opening of the Large Hall, is multifunctional with a retractable seating system that can be used for a variety of purposes regardless of genre. The inside of the building features a warm interior, with cedar boards used in the ceiling of the main lobby and the Hall. The Hall is surrounded by practice rooms for music, dance, and art, as well as a listening room with a complete selection of audio equipment, allowing for a full range of civic activities. Some of the exterior and interior walls are made of glass so that the activities are visible from the outside. The Middle Hall is also expected to host innovative events, including projects in collaboration with the Large Hall. It aims to be an open and lively exchange space for citizens.
Photos:•Opening the sliding wall at the rear of the hall, with the retractable seating stowed, creates a spacious area that connects the entrance to the hall. •Open, high-ceilinged main lobby. The foyer is used for various purposes, including holding events. •Center stage surrounded by retractable seats. Five other stage configurations are possible: normal, flat, front stage, and orchestra pit. •Individual armrests for each person to ensure personal space. •The subtle “handholds” are integrated into the backboards, and blend well with the space.
Location Toyama City, Toyama Prefecture, Japan
Owner: Toyama City
Designed by: Kume Sekkei, Oshida Sekkei and Arts Space Factory
Design partners: Kengo Kuma & Associates
Opened: July 2023
Seating Capacity: 652 (Retractable seats:163)
A large conference room in a historic medical practice where surgical procedures are shared in real time
The opening of Hanaoka Seishu Memorial Cardiovascular Clinic
Hanaoka Seishu was a Japanese surgeon of the Edo period (1603-1868) who successfully performed the world’s first surgical operation using general anesthesia (breast cancer surgery). In August 2016, one of his direct descendants opened the Hanaoka Seishu Memorial Cardiovascular Clinic in Toyohira Ward, Sapporo City, Hokkaido, Japan. With core values of honesty, rationality, harmony, symbiosis, and pursuit of truth, the clinic’s aims are to provide community healthcare services and pass on skills to the next generation. In August 2019, an operating theater and a new building were added to the clinic. The Clinic was renamed as a Hospital in December of the same year.
The large conference room has luxurious, comfortable retractable seating
A large conference room with 98 seats was built in the basement of the newly expanded building. At the front of the room, a big screen (equivalent to 220 inches) was installed and connected to a monitor in the operating theater, so that viewers could monitor surgical procedures in real time. The screen can be split into multiple sections or viewed as one large screen, allowing it to be used in a variety of ways depending on the occasion.
Retractable seating was chosen to make the best use of the limited space in the hospital. A wide range of options are available for retractable seating, and the seats chosen for this project include firm cushions to help viewers concentrate even during long hours of surgery. The seats look very much like the fixed seating used in theaters and halls, and at first glance, it’s impossible to tell that they can be stowed away using a single remote control.
Fully automatic retractable seating allows the hall to be transformed into a flat space at the touch of a button
Seating that envelops the audience in comfort
The backrests of the seats are made from three-dimensionally curved molded plywood with urethane foam cushions. The design supports the body with an all-enveloping feeling of comfort. The seat is our “Spacia” model, which narrows towards the front. The section behind the knees of the occupier is thinner than the rear of the cushion, giving the seat a triangular side profile. Compared to a more conventionally shaped seat, this design creates less of a shift in audience members’ centres of gravity when they pull their legs inwards to stand. This makes standing up and sitting down easier. There is also plenty of legroom, ensuring a comfortable environment even when people are seated for long periods. Wooden components are painted dark brown, ensuring that this bright-colored interior space has an air of elegance.
Each tier has a 320mm height difference, so that there is no risk of the screen being obscured by the head of the person sitting in front, and the audience can see the speaker’s face clearly. The front to back depth of the seating is 1,000mm – wide enough for the audience to stay focused and not be distracted by the movement of people around them. When the retractable seating is not in use, it can be stowed away in a few minutes at the back of the room. A push-button remote control electrically folds down the platform, including the mounted seats. By covering the retracted seating with a sliding wall, an large, flat space is created, with the seating completely out of sight. This opens up the room for a wide variety of uses. The retractable seating is upholstered in vivid green and red, reminiscent of arteries and veins. This is an invaluable large conference room that plays a key role in the future of healthcare.
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Facility Overview
Hanaoka Seishu Memorial Hospital is a cardiac hospital situated in Toyohira-ku, Sapporo, Japan. The hospital was named after Hanaoka Seishu, who performed the world’s first historically proven breast cancer removal surgery using general anesthesia in 1804, and left a great legacy in Japanese medicine. Inheriting the medical philosophy of Hanaoka Seishu, the hospital advocates four principles—honesty, rationality, pursuit of truth, and harmony and symbiosis. The facility provides the very best in medical care, and is flexible enought to incorporate the needs of community healthcare.
Photos:•As the retractable seating can be stowed inside the sliding wall, the flat floor space looks very neat. The scope of use extends further than just for meetings. •The seat is “Spacia”, which narrows towards the front. Because the section touching the back of the knees is thinner, standing up and sitting down are easier. •Seats can be easily stowed away using a single remote control. •Users can concentrate on watching surgical procedures on a large screen in real time from a comfortable seating space. The screen can also be used for lectures with a multi-split view.
Facility Information
Location: Sapporo, Hokkaido, Japan
Owner: Medical Corporation Shunrinkai
Completion: August 2019
Seating Capacity: 98
A multipurpose space within a financial institution that can also serve as a shelter in the event of a disaster
Suitable for multiple purposes, from a seminar venue to an evacuation center
A new head office for Gamagori Shinkin Bank (known by the nickname “Gamashin”) was completed in 2015. The office is located in Gamagori City, Aichi Prefecture, Japan. Situated near the coast at Mikawa Bay, the building was constructed as a hub for local financial institutions based on the concepts of safety and security, environmental friendliness, and contribution to the local community. The building was equipped with a high-level seismic isolation system to protect people’s lives and assets even in the event of a major natural disaster such as a huge Nankai Trough earthquake, a major tsunami, or a typhoon.
The high level of disaster protection awareness is also evident in the auditorium on the first floor, which is open to the local community. The tiered seating area for holding seminars and lectures was equipped with retractable seating (called a Rollback Chair Stand in Japanese) that can be stowed into a wall using a single remote control. The auditorium is a multipurpose space that can be transformed into a large flat space for use as a shelter in the event of a disaster. Meanwhile, the auditorium is used in a variety of ways, such as to hold exhibitions and conduct yoga classes.
Retractable seating that combines comfort and design quality
The 119 retractable seats are fully automatic and can be stowed into the wall. When they are stowed away, they fit neatly in the wall at the back of the hall, preserving the beauty of the space regardless of whether they are deployed or stowed.
The seats are Type L, renowned for their ample seating comfort and luxurious appearance. The three-dimensional curved backrest conforms to the body and the polyurethane-filled, thick cushions offer support and comfort even during long periods of sitting. Plenty of quilting was used on the upholstered seat and backrest giving the chair a luxurious look and feel. Three randomly applied upholstery colors: royal blue, smalt blue, and silver gray, evoke thoughts of the sea in the rich natural environment of Gamagori. Natural wood was used on the entire back of the seat to add elegance.
Retractable seating with a generous feel for greater seating comfort
The armrest writing tablet was designed to ensure safety even in emergencies
Revolving writing tablets are mounted on the armrests for use in seminars. The writing tablets are attached to the chair arm posts and can be rotated into position when needed. Users can pull the tablet out smoothly and store it away quietly, ensuring that events are not disturbed. Even if an emergency occurs when the writing tablet is in use, the anti-panic mechanism automatically retracts the tablet when it rises to a certain point, allowing for a quick emergency evacuation.
Information
Seating Capacity: 119 Facility Overview
Owner:
Designed
Opened: April 2015
Location: Gamagori City, Aichi Prefecture, Japan
Gamagori Shinkin Bank
by: Kume Sekkei
Given its location close to Mikawa Bay, in 2015 the Gamagori Shinkin Bank’s head office was completed as a disaster-resistant facility to prepare for possible disasters, such as strong tremors and tsunami caused by a major Nankai Trough earthquake. The auditorium on the first floor is equipped with retractable seating that can be stowed away, readying it for use as a temporary shelter in the event of a disaster.
Photos:•Randomly placed upholstery in three different colors inspired by the sea of nature-rich Gamagori. •Fully automated retractable seating can be stowed neatly in the wall at the rear of the hall. •Natural wood used on the rear of the seats adds elegance. •The revolving writing tablet is equipped with an anti-panic mechanism that automatically retracts the tablet when it rises to a certain position.
Shinkamata 1-chome Complex,
A large-scale complex to bring communities together designed by Shinkamata Ward residents and the local government
More than half of the building is devoted to activities for the Shinkamata Ward residents
The Shinkamata 1-chome Complex, known as “KAM KAM Shinkamata,” is a large-scale complex opened in May 2022. From the second basement to the fourth floor, the facility consists of the Shinkamata Ward Activity Center, used for local club activities and gatherings, a childcare center, a plaza for junior high and high school students, a parenting plaza, a community comprehensive support center, and a center for senior citizens.
The Shinkamata Ward Activity Center, which occupies more than half of the building, is equipped with large and small multipurpose rooms, meeting rooms, an art room, a cooking workshop, and a music studio. The large multipurpose room, which can accommodate up to 450 people, is located on the second basement floor. Even at the initial planning phase for this space, many uses were envisaged by the local government and ward residents alike. These included recitals, lectures, small-scale sports, and community events. To accommodate this wide range of activities, KOTOBUKI SEATING’s fully automatic retractable seating and stackable chairs were chosen.
Versatile space utilization with luxurious fully automatic retractable seating
The fully automatic retractable seating in the large multipurpose room is a bank of tiered seating that can be deployed and stowed away. It is usually folded and neatly stowed against the wall at the rear of the room. When using it, operators simply connect the remote control and press a button to deploy the tiered platforms and erect the chairs. It takes approximately three and a half minutes for a 216-seat auditorium to emerge. A fully-fledged hall can be created in no time with little manpower. Stairs were built behind the last row, ensuring access to the seating from the rear as well as the front of the auditorium.
The seats mounted on the retractable seating are Type L, which are both compact and luxurious. The natural wood used for the backrests and armrests instantly enhances the theatre-like aesthetic. The backrest has a three-dimensional curve that comfortably conforms to seated postures, and the thick seat is made of urethane foam with just the right amount of firmness to provide lasting comfort even after long hours of sitting.
A combination of fully automatic retractable seating and stackable chairs to support “user-friendliness”
Up to 450 seats can be set up in combination with compact stackable chairs
Stackable chairs can be laid out between the fully automatic retractable seats and the stage, with a varying number of rows depending on the event. Wooden stackable “TAG” chairs were chosen to achieve a maximum seating capacity of 450. TAG features a seat pad placed on single-piece molded plywood. The chair’s compact front-to-back dimension creates wide aisles, ensuring that the audience can evacuate safely, even from long rows of chairs. To achieve a high level of comfort despite the small size of the seat, the seat pad extends around the waist. The wood and upholstery are matched to the retractable seats, creating a sense of unity throughout the entire seating area.
For workshops and training sessions, movable tables and stackable chairs are laid out. This multipurpose room expands the range of activities for ward residents. Its layouts include “hall mode”, with a flat floor and retractable seating, and “workshop mode”, using tables.
Facility Overview
The Shinkamata 1-chome Complex, known as “Kam-Kam Shinkamata” was built on the site of the former Ota Ward Residents’ Center, which was demolished due to its age. The complex was constructed under the Ota Ward Public Facilities Management Policy, ensuring a coordinated approach across this and neighboring facilities. The complex includes the Shinkamata Ward Activity Center, a childcare center, a parenting plaza, a plaza for junior and high school students, a comprehensive community support center, and a center for senior citizens. Through activities such as community activities and lifelong learning, the complex connects people with their local community, and contributes to the interaction and wellbeing of people of all ages.
wood and upholstery of the retractable seating and stackable chairs
creating a unified space. •To support various ward resident activities, the complex is equipped with
and
Owner: Ota Ward
Opened: May 2022
Seating Capacity: 450 (Retractable seats: 216) Facility Information Details
Location: Ota Ward, Tokyo, Japan
Photos:•The hall can be used as a flat floor space. Retractable seating is neatly stowed against the rear wall of the room. •Type L, luxury seats with cushions designed for maximum seating comfort. •TAG, a small but comfortable natural wood stackable chair with a thick cushion.
match,
Civic hall with fully automatic retractable seating that can serve as a disaster protection center
Sakaiminato residents’ long-awaited culture complex with a hall is now open
The civic hall in Sakaiminato City was closed in 2013 due to dilapidation and lack of seismic strength. Some ten years later in July 2022, a long-awaited civic complex named Minato Terrace (Sakaiminato Civic Center) was opened with three different functions: civic exchange center, library, and disaster protection center. As a new hub for the city, it is always busy with a wide range of activities.
The old civic hall had approximately 1,300 seats, but considering the current size of the city and the events planned for the future, the new hall was streamlined to 808 seats, including a wheelchair space and parent-child viewing seats. The old chairs were replaced with comfortable seating to suit the modern physique. The seats can be stowed away to enable the hall to fulfill its function as a disaster protection facility.
Introducing retractable seating that can be deployed and stowed in a few minutes
The seating in the civic hall consists of three different types. Around 70% of the seating is made up 552 tiered, retractable seats in 16 rows. These movable seats that can be easily closed away in just a couple of minutes. To allow the hall to be used in its flat floor space configuration as a shelter in the event of a disaster, the fully automatic type was chosen for its ease of operation. The 552 seats can be stowed into the wall at the rear of the hall, and the folded seats are redeployed by pressing the deployment button.
In front of the retractable seating, fold-down seating is lined up in 4 rows. By simply unlocking the castors on the base and folding the backrests down, the seats can be rolled away and stowed under the stage. Not only does this design help to create a flat space for disaster response, it also contributes to flexible seating arrangements for a variety of events.
On the second floor, four rows of fixed seating continue upwards from the last row of the retractable seating. Even when all the retractable seating and removable seating on the first floor are stowed away for an event, visitors can still watch from the fixed seating.
Minato Terrace ( Sakaiminato Civic Center ),Civic Hall
Creating a hall that is friendly to wheelchair users, carers, and families with young children
Multiple types of chairs are unified with deep blue upholstery
All seats in the hall are variations on the Type LW seat. Navy-colored upholstery and natural wooden tones harmonize with the building’s interior to evoke the natural coastal environment of Sakaiminato City. The thick cushions support the body firmly and provide a comfort even after long hours of viewing. Indents in the first two rows of seating create a total of six wheelchair spaces (three on each side) with an excellent view of the stage. For wheelchair users’ companions, TS-1212 stackable seats are included. These were designed with theatres in mind, offering specifications and quality comparable to those of the retractable, removable and fixed seats. Luxurious cushions and natural wood armrests create a sensory feeling of quality.
For the parent-child viewing seating located at the rear of the hall, TS-0105 was selected. This sofa seating makes it easy for parents and children to stay close together when watching a show. Because this type of seating can be moved around, it also supports a social distancing policy when needed.
Facility Overview
of the facility is a
in July 2022 on the
for cultural exchange and disaster
The drop curtains in the hall were designed to be familiar to the public, with a motif based on characters created by a manga artist, Shigeru Mizuki, who was born in Sakaiminato City. Retractable seating and a retractable stage (FS-800) were installed in the civic hall and the large conference room respectively, which can be converted into flat floor spaces and used as a shelter in the event of a disaster.
Photos:•Fully automatic retractable seating was selected so that the full floor of the hall could be used as a shelter in the event of a disaster. •The complex is designed to be a hub for culture exchange and disaster protection. •By leaving out the front two rows on both sides of the retractable seating, wheelchair spaces with good sightlines are provided. •Seating was designed inspired by Sakaiminato City, a coastal city with a natural coastal location. Thick cushions ensure comfort even after long hours of viewing. •Sofa-type seating at the back of the hall allows parents and children to stay close together when watching a show. 5 4 1 2 3
Facility Information
Location: Sakaiminato City, Tottori Prefecture, Japan
Owner: Sakaiminato City
Opened: July 2022
Seating Capacity: 808 (Retractable seats: 552)
Minato Terrace (Sakaiminato Civic Center) was opened
site of the former Sakaiminato Civic Hall. The concept
“hub
protection.”
An arts and culture hub where seating layouts can be adjusted to suit different programs
NAHArt, a cultural hub for sharing inspirations and emotions
Opened in October 2021 in Kumoji, Naha City, NAHArt – Naha Cultural Arts Theater is now the largest urban public theater in the prefecture. It was created to serve as a hub for the promotion of culture and the arts. It is also a center of urban development, with the aim of energizing people and the city, and enhancing Naha’s charm.
The name "NAHArt" expresses the wish that the citizens will feel affinity for the center as a hub of performing arts, and that it will appeal to the Naha ( NAHA ) residents' hearts ( HEART )
Flexible seating reminiscent of Shuri Castle
The Small Theater is a multipurpose hall. The stage and seating can be reconfigured in various ways allowing for flexible use of the space. The hall's décor, including the vermilion stage walls, allows visitors to experience the atmosphere of Shuri Castle.
Retractable seating and stackable chairs were installed in the hall with a total seating capacity of 300. KOTOBUKI SEATING’s after-service, which ensures peace of mind, was one of the deciding factors in choosing these seating systems. Fully automatic retractable tiered seating can be easily deployed or stowed away in a matter of minutes with the flip of a switch on a remote control.
The TS-1212 series of stackable chairs developed for theaters and halls was used to match the design of the retractable seating. The backrest hugs the body and luxurious cushions provide ample seating comfort.
The area where stackable chairs are used was equipped with an elevating mechanism, allowing the seating layout to be changed to suit the performance. When a larger space is needed, the retractable seating and stackable chairs can be stowed away and the room can be used as a flat floor room accommodating approximately 400 people.
Textile design representing Shuri Castle
Bright, specially designed upholstery
The seat upholstery is custom-made by FABRIKO, KOTOBUKI SEATING’s own textile design company. The fabric was created in consultation with the building’s design team, inspired by the traditional Okinawan “Shuri brocade,” in keeping with the theater's evocation of Shuri Castle. The main motif, however, is the Shuri Hanakura-ori, which was considered exclusive to royalty. The pattern is a checkered arrangement of flower weave and openwork, quite characteristic of Hanakura-ori, which is said to have been worn by princesses. The yellow dye comes from the city's local “Fukugi” tree. The bright yellow upholstery is striking against the subdued red and black interior, creating a really beautiful seating area.
NAHArt - Naha Cultural Arts Theater is a hub for culture and the arts, and a place that connects people's hearts and minds. As a place people can visit when they please, to relax and interact, the center will undoubtedly enliven the region.
Facility Overview
Facility Information
Location: Naha City, Okinawa Prefecture, Japan
Owner: Naha City
Opened: October 2021
Seating Capacity: 259 (Retractable seats: 144)
Details
NAHArt—Naha Cultural Arts Theater is the only facility in the prefecture that serves as a hub for disseminating arts and culture. The distinctive exterior of the building features exterior panels made of Shuri brocade (Hanakura-ori), a traditional Okinawan textile, softly wrapping the entire building. The facility has a lobby like a garden (una) where people can interact, and an alley-like internal passageway (su-jigwa) between the Grand Theater and Small Theater. Nobody needs an invitation to visit the space; people can drop in whenever they please.
Photos:•When the retractable seating and stackable chairs are stowed away, the theater can be used as a spacious flat floor space accommodating approximately 400 people. •The arts and culture hub has a distinctive exterior featuring exterior panels made of Shuri brocade (Hanakura-ori), a traditional Okinawan textile. •The multipurpose hall is equipped with variable functions for the stage and seating, allowing free use of space. •The seat upholstery was custom-made to match the design theme of Shuri Castle. •The stackable chairs have the same upholstery as the retractable seating, giving the hall a sense of unity.
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Shikochu Hall ( Shikokuchuo City Civic Cultural Hall ),Sub Hall-Karuta
A Shikoku region-wide cultural exchange hub that can also serve as an evacuation center in the event of a disaster
A small hall with configurable seating for multiple purposes
Shikochu Hall ( Shikokuchuo City Civic Cultural Hall ) has two halls, and the small one is nicknamed “Karuta”, after traditional Japanese playing cards.
The seating area consists of tip-up stackable chairs as well as retractable seats that can be deployed and stowed away by pressing a single remote control button. The floor in the front section, where stackable chairs can be placed, can be raised and lowered electrically. These stackable chairs can be stored and transported on trolleys to a storage room, and the retractable seats are stowed into the wall at the rear of the hall, allowing the space to be used as a flat area. The size of the flat floor is about the same as the stage in the large hall, making it suitable for holding rehearsals.
This multipurpose hall offers a wide range of uses, from live performances to rehearsals, exhibitions, and formal parties. In the event of a disaster, this flat space is also expected to serve as an evacuation center.
Retractable seating with matching stacking chairs
Two types of seats with complementary designs
There are 140 retractable seats and 72 stackable chairs, giving the hall a total seating capacity of 212 seats. Either the retractable seats or stackable chairs may also be used alone. As both types of seating have the same design and upholstery, they create a sense of unity when used together.
The type of seating adopted for the retractable seating was Type LW with firmly padded thick cushions. Natural wood was used on the outer surfaces of the seat and back, lending the chairs all the elegance of fixed theatre seats. The three-dimensional backrest that conforms to the upper body means the chairs do not only feel comfortable, they look comfortable too.
The stackable chair is TS-1212, developed specifically for theater and hall seating. With a backrest that fits the body shape and thick, generous-sized cushions, this model offers unstinting comfort that sets it apart from standard stackable chairs. A further attractive feature of these stackable chairs is their tip up action; because they tip in the same way as the retractable chairs, the two seat types have the same feel. When not in use, the stackable chairs can be loaded on special trolleys and neatly stored away.
Facility Overview
evacuation center in the event of a major earthquake or other disaster. The hall
finally opened in August 2019.
Facility Information
Location: Shikokuchuo City, Ehime Prefecture, Japan
Owner: Shikokuchuo City
Opened: August 2019
Seating Capacity 212 (Retractable seats:140)
This is a new cultural facility that brings together the civic halls of the former Kawanoe City and the former Iyo Mishima City. Even before construction started, great expectations had been pinned on the new building to contribute to the revitalization of the city as a hub for culture and exchange throughout Shikoku, taking advantage of its location in the center of the region. The construction plan that was put forward included the use of the hall as an
was
University of Tsukuba Hospital Kirinoha Mall, University of Tsukuba Hospital Auditorium
Improving space utilization with retractable seating that supports conferences and practical training at a university
A new multipurpose auditorium that can be divided into two parts
In April 2020, a new amenity mall, “Kirinoha Mall” was opened at the University of Tsukuba Hospital, including a multipurpose auditorium on the second floor.
The aim of the new auditorium was to create a better environment for lectures and seminars. These were previously held in the hospital’s community space, as well as at other facilities in the prefecture. KOTOBUKI SEATING’s electrically operated retractable seating system was introduced to accommodate situations requiring desks and chairs (for example department conferences, meetings, and committee gatherings), as well as situations requiring a large flat floor space, such as practical skills training. This retractable seating system was already highly regarded because of its use in other facilities on the campus; a deciding factor in choosing it for this space. A sliding wall was also installed in the center of the room, allowing the space to be divided into two separate areas when required. The synergy between the sliding wall and the retractable seating system has brought about an occupancy rate of almost 100% on weekdays.
hospital
Luxury seating that can be set out or packed away in three minutes
The retractable seating area consists of movable tiered seating that can be deployed and stowed away. Because most events that take place in the auditorium require seating, the seats usually stay in place and are used in the same way as fixed seating, offering everyone a great view. When a large seat-free space is required, 126 seats can be folded by pressing a remote control switch, stacking eight rows of seats, and stowing them against the wall at the rear of the auditorium. This takes approximately three minutes. The greatest advantage of the retractable seating is that anyone can quickly and easily operate it.
Luxury “Type L” seats were selected. The three-dimensionally shaped backrest conforms to the contours of the body, and the polyurethane-filled seats are generously thick, offering comfort even during long conferences. Vivid blue upholstery was chosen to harmonize with the University’s two school colors, “Tsukuba Purple” and “Future Blue”, as well as with the interior and the stackable seating. The color of the tactile solid wood armrests is light and natural, while the backboard and elbow frame are darker in color.
Computers are easy to use on the silent tables that are integrated within the retractable seating
Spacious laptop size tables were included
During departmental conferences, meetings, and committee gatherings, there are many moments when desks are required for taking notes or using laptops or tablets. Therefore, front folding tables compatible with laptop-sized items were installed. The tables are stored neatly away in boxes on the rear of the seats in front. When users bring them out or store them away, their silent design minimizes disturbance. They also retract slowly into the storage box even when lifted quickly, removing any risk of finger entrapment.
Facility Overview
Tsukuba University Hospital is the only Special Functioning Hospital in Ibaraki Prefecture. It functions as a place for medical treatment associated with medical science education and research, as well as providing advanced medical care to the community, fulfilling its social mission as a university hospital. The new amenity mall “Kirinoha Mall” was established through a PPP project (representative company: Lawson, Inc.) aiming to improve services for patients and other hospital users as well as to enhance the welfare of university staff. A dispensing pharmacy, a barber, and a convenience store are located on the first floor, while an auditorium and health promotion facility are located on the second floor.
•When a flat space is necessary, the seats can be stowed on the rear wall and the space is used for various purposes, such as practical training. •The new auditorium can be divided into two sections, front and back, as needed. The front table can be neatly stored when not in use. •The tables have a silent design. •Deployment and stowage of the retractable seating takes about 3 minutes with a simple remote control operation.
Facility Information
Location: Tsukuba City, Ibaraki Prefecture, Japan
Representative Company: Lawson, Inc.
User: Tsukuba University Hospital
Opened: April 2020
Seating Capacity: 126
Details
Photos:
Optimizing facility space utilization
KOTOBUKI SEATING’s telescopic seating, also known as retractable seating, is a fully automatic system that can be stowed and deployed by electrical operation. Comfortable theater-style chairs are mounted on tiered platforms, enabling flexible use of the hall and the creation of a variety of configurations in complex buildings and public facilities.
In an earthquake-prone country like Japan, seismic resistance and durability of retractable seating are extremely important factors. Knowing that some of our products are used in facilities that would serve as shelters in the event of a major earthquake, KOTOBUKI SEATING has been actively involved in the research and development of superior earthquake-resistant seating structures, which also have practical uses in the event of a disaster.
KOTOBUKI SEATING’s fully automatic telescopic seating system has achieved zero accidents such as unit-topple or collapse due to earthquakes in the past 40 years. In response to the recent increase in earthquakes of magnitude seven and above, we have strengthened the structure three times since 1995. We have also conducted seismic wave simulations at a magnitude seven observation site, and have been highly rated by a performance evaluation institute designated by the Minister of Land, Infrastructure, Transport and Tourism.
Why choose a telescopic seating system?
A telescopic seating system means that a single space can be turned into either an auditorium or a large flat-floor space, allowing the venue to diversify and easing the load on the facility manager.
Make your facility multipurpose and your space multifunctional
The telescopic seating system website
With the seating stowed away in the wall, space can be used flexibly for exhibitions or as an emergency base. With seats deployed, the room is suitable for ceremonies and similar events.
Significant time and cost savings
Use in emergencies and disasters
Our fully automatic telescopic seating system allows seats to be deployed and retracted simply by pressing a button. There is no heavy lifting involved and the system can be operated by a single person, saving a great deal of time and manpower in the set-up process.
Setting up and removing individual chairs always requires manpower
With the fully automatic system, the whole seating unit can be folded in and out by simply pressing a switch, which greatly reduces the set-up time, making more efficient space utilization possible.
Securing a line of sight while seated
Seating is set up in a tiered configuration to prevent audience members’ views from being blocked by the heads of those in front. It is also suitable for lectures, as the lecturer on the stage can see the faces of the audience well.
Photo provided by Kure City
A single person can easily operate the fully automatic telescopic seating system
Example of telescopic seating
Case studies for renewals
Telescopic seating will last 25 to 40 years before it is ready to be replaced. When we receive a request for a refurbishment, we look not only to upgrade the seating or give the hall a fresh look, but also to design in safety, seismic reinforcement, and improved user experience.
Location: Ishikawa Prefecture, Japan
Owner: Ishikawa Sunrise Industries Creation Organization
Completed: June 1984
Renewed: November 2013
Seating Capacity: 482 (Retractable seats: 299)
Design quality and seating comfort were significantly improved
Thicker
and
Equally spaced stairs are easier to walk on and prevent tripping
Renewed handrails prevent objects from falling underneath the platforms
Location: Chiba Prefecture, Japan
Owner: Nippon Life Insurance Company
Completed: February 1989
Renewed: April 2020
Seating Capacity: 435
Location: Fukuoka Prefecture, Japan
Owner: Nishinippon Elgala Building Co., Ltd.
Completed: March 1997
Renewed: January 2017
Seating Capacity: 605 (Retractable seats: 320)
with
Natural wood was used throughout, and seats have comfortable cushioning and a luxurious appearance. Three colors of red upholstery create a pleasing gradation, and the space has become more comfortable and elegant after the renewal.
Evacuation flow lines were increased from two to four
An important aspect of the renovation plan was to improve safety. As a countermeasure against earthquakes, evacuation flow lines were reconsidered. The original two vertical aisles were increased to four. A rear staircase (ramp) was also added to ensure a smoother flow line.
Location: Tokyo, Japan
Owner: Bunkyo City
Completed: October 1994
Renewed: March 2022
Seating Capacity: 341 (Retractable seats: 299)
and
Designed for safety and ease of navigation
As a service improvement, in addition to numbering on seats, row numbers were placed on the floor to help audience members to find their seats quickly and safely. Gaps between the handrail and the floor were eliminated to prevent objects from falling and to minimize tripping.
Upgrading the safety and comfort of a multipurpose hall used for music concerts, plays, lectures, and other events
Upgrading seats to create a sophisticated space
slowly, minimizing noise and vibration when occupants leave their seats. The new seats have calm wood tones and textures, giving the hall an atmosphere of quiet sophistication.
Introduction to the Premium Fully Automatic Telescopic Seating System
Our premium telescopic seating system offers high functionality and comfort. Here is our ever-evolving lineup of seats that can be mounted on the platforms.
Omura City Civic Plaza, Plaza Omura, Hall
Prestigious appearance and premium comfort
This classical design uses an abundance of natural wood and thick, luxurious cushions. High class quality and design give an exceptional seating experience.
Upholstery Standard fabric
Backrest Polyurethane foam
Back outer: Molded plywood, wood veneer
Seat Serpentine spring, molded polyurethane foam
Seat bottom panel: Plywood, wood veneer
Automatic gentle seat tip-up mechanism
Arm Armrest: Solid wood
Frame: Wood veneer
Dimensions
Type LW and Type L
Superior comfort created by a good fit
Thicker cushions and three-dimensionally shaped backrests fit perfectly to the body. The chair’s simple form, exuding quality and serenity, makes it ideal for corporate and municipal training facilities and halls, as well as ceremony and lecture spaces in hospitals.
Upholstery Standard fabric
Backrest Polyurethane foam
Back outer: Molded plywood, wood veneer
Seat Polyurethane foam, Automatic gentle seat tip-up mechanism
Type LW - Seat bottom panel: Plywood
Type L - Seat bottom panel: Upholstered
Arm Armrest: Solid wood
Arm panel: MDF, wood veneer
Armrest post: Steel, paint finish
Leg Steel, paint finish
*Design registration
Armrests with the soft texture of natural wood.
Thicker backboards and generous cushions provide comfortable support for the upper body.
Seats with built-in serpentine springs provide comfort comparable to fixed theater seating.
The three-dimensionally shaped backrest conforms gently to the upper body line.
The armrests are made with generous solid wood for a high grade specification. In pursuit of comfort, the seat cushions boast twice the thickness of the standard model.
Seat bottom panel: Molded plywood for both Types LW and L
AVOS
Sophisticated design and functionality
A theater seat designed by Quinette Gallay in France. The curve of the slender backrest gently supports the seated posture. When the seats are tipped up, they form a compact straight line, providing ample aisle space.
Upholstery Standard fabric
Backrest Molded plywood, upholstered polyurethane foam
Seat Molded plywood, upholstered polyurethane foam
Arm Armrest: Synthetic resin molding Pad and aisle panel:
Upholstered polyurethane foam
Armrest post: Aluminum
eFORM
Providing flexible layouts as well as comfort
This seat was designed for telescopic seating systems, offering flexible layouts and a comfortable seating experience. With an individual leg for each seat, a flexible layout using a curved arrangement has become possible.
Upholstery Standard fabric
Backrest Polyurethane foam
Back outer: Molded plywood, wood veneer
Seat Upholstered polyurethane foam, Automatic gentle seat tip-up mechanism
Arm Armrest: Solid wood
Aisle panel: Synthetic resin molding
Armrest post: Aluminum die-cast
Image of a curved arrangement. Because each seat has an individual leg, flexible layouts with a curved arrangement become possible.
Rotating writing tablet T1
For seminars and other events where writing is required
For note-taking, the writing tablet attached to the chair arm post can be rotated into position. Even with a writing tablet attached, this chair model can be accommodated within a standard row depth.
Front Folding table TB Elegante model
A laptop sized table
This table retracts so gently into its storage box, it just seems to fall away. Its safety mechanism prevents accidents such as finger entrapment. Ideal for seminar rooms and other venues where tables are used frequently.
In addition to the retractable spectator seating, the introduction of stackable chairs with matching upholstery design and even the same seating comfort, as well as storable writing tables, provides a more functional and flexible space while maintaining a unified asthetic throughout the hall.
Gamagori Shinkin Bank Head Office, Community Hall / Aichi Prefecture, Japan
Yamaguchi University Hospital Building A Auditorium / Yamaguchi Prefecture, Japan
Fukuoka City Science Museum, Science Hall / Fukuoka Prefecture, Japan
https://kotobukiseatinggroup.com/
1-2-1, Kanda Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
https://www.kotobuki-seating.co.jp/en/