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LEVIOCHAIR sean bell

charles han

sara free

“empowering the elderly by getting them up and about� virginia tech industrial design


As the body ages, getting in and out of a chair becomes painful.

The result is an elderly population literally trapped in their seats.


muscle loss

diabetes heart disease

depression

interdependence lack of confidence

obesity

balance


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STORY B OAR D


6 S TEPS FOR S TA N D I N G 1

2

3

Elder persons sit with slouch positions and almost always make use of armrests

Process begins by scooting forward into the seat and placing hands on arm rests

Feet shift for balance during the process with more pressure on elbows

4

Heavy stress at points on elbows, wrists, and ankles. Back is arched forward.

5

Safe method for rising consists of balance from the front and support from back

6

As elderly person rises force is placed on the balance point. Back support continues


H A NDS ON RES E A R C H ELDERLY SIMULATION SUIT Group members trie d o n a s u i t t h a t s i m u l a t e s t h e body of an elder ly p e r s o n . We l e a r n e d t h a t : • joint strain is the primary reason for immobility • the only way to settle into the c hair is to fall bac k • getting up required the aid of at least two people

M AR K E T ANALYSIS U P - EASY SEAT ASSIST

reverse engineering on a seat ass i s t t o u n d e r s t a n d m e c h a n i c s


i n t e ra c t i o n w i t h a c h a i r o c c u r s i n t wo way s

IN

OUT

t h e r e m u s t b e a way t o m a ke b o t h e a s i e r


a ssistive c h a i r i d e a t i on sketc hes


so how ca n we m a ke this r eal?


F OA M P ROTOTYPIN G to get a sense of er gonomic feel


1

Standing in upright position

5

Comfortable seated position

2

Reaching handles for balance

6

Pushing down on armrests

3

Weight on hands and elbows

7

Seat assists in rising process

4

Seat catches the individual

8

Easing into standing position


o b s e r va t i o n s f ro m t h e m o d e l End of armrest is the first point of contact w h e n s i t t i n g.

Stopper s a t t h e bottom o f t h e l e g s prevent s l i d i n g.

19 in

Bac k m ust be c u r ve d in for bac k c o m fo r t .

Seat must be 21 inc hes high to be a c c e s s i b l e fo r elderly (regular c hairs are 18 in)


LEVIO an assistive c hair t h a t u s e hyd ra u l i c cylinders to cushion a p e r s o n a s t h ey sit and assist them a s t h ey r i s e.


hydraulic cylinders create sliding motion down

MECHANICS

UP AND FORWARD


LEVIO A S S I S T I V E

C H A I R


LEVIO A S S I S T I V E

Soft rubber for tactile feedback

Pneumatic cylinder system

Stoppers to prevent sliding

C H A I R


LEVIO A S S I S T I V E

Dining tables are typically 28-30 inc hes high. Levio c h a i r c a n a l l ow u s e r t o s c o o t u p d u e t o ra i s e d a r m s.

C H A I R


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LEVIO A S S I S T I V E

C H A I R

“empowering the elderly by getting them up and about�


Levio Chair