Gleaner - Sori Jun - Ko Chun - Brian Lee - Mickey Wong -
Background
/object /target user
Process
/research methods(brief)
Study
/trolley /elderly anthropometric /analysis
Observation
/shadowing /postures(capture photos) /analysis
Interview
/playscript(summary) /analysis
Sketches Final design
/renderings /model
Background -
Delivering tool that can be found nearly in every street
-
Lack of Ergonomic consideration
-
Majority users are elderly and low income family
-
Affect the user behaviour and posture
Aim /Ergonomic /Low cost /Improve refer to user behaviour /Modifiable by the user
Target User Elderly Scavenger
Research Methods
Object: Trolley /Internet research /Library research User /Interview /Shadowing /Questionnaire (X) difficult to do quantified survey
research
TROLLEY
Trolley research
SIZE
Width Length
most popular among scavenger easily found
Can load(kg) 150
200
250
200
350 cost: HKD110up
Elderly Anthropometric
The average self-determined handrail height /Females /Males /Avg
: 73.7cm : 80.2cm : 76.9cm
*Data is collected in Taiwan in 2012 It is a referable data as there is no data from HK
handrail height
The strength of certain parts of elderly affects their ability of controlling the trolley.
Compared to when they were 20.
Hand strength reduce
~16-40%
Arm strength reduce
~50% Leg strength reduce *Data is collected in US in 2002 It is a referable data as there is no data from HK
~50%
shadowing target users to observe the whole carboard collecting process. shadowing https://www.youtube.com/watch?v=CZGMedV7zcU
looking for cardboard > folding carboard > loading > (cycle)
shadowing video https://www.youtube.com/watch?v=m479CphIqXc
DIFFICULTY in interview â—? hard to find the user â—? user is in a hurry
working hours: for long while working area: as far as they can *collector race!
interview
Using experience Age range
2 years ~60
4 years
5 years
5 years
~60
~60
~60
discovery from interviews RECYCLE STATIONs
per 1kg PAPER
per 1kg METAL
collectors usually get at least 10 dollars stuffs to sell everyday ( which means average paper weight: $10 / 6cents(paper) = 16.7kg per DAY )
discovery from interviews TARGET USERs * walk down the slope is much more easier than go up the slope. but they need to chase and run after the trolley when they go down the slope >causing leg muscle and knee pain >risk of accident * not prefer to buy trolley larger than M size (do not want to be the obstruction of street) * Must wave the net for the handle because stuffs will fall out through handle when going up slope * strangers steal the trolley if user does not lock the trolley * user rarely keep their trolley at home but just lock at street
collecting route
* at least 10kg per day. cannot load more than 10kg at once ( bulky ) * need to go at least 2~3km per day to searching for the cardboard * the wheel fall out sometimes beacause of the weight * the pay of paper collection is keep getting cheaper year by year * losing collected cardboard from strangers stealing is un-avoidable when user need to go toilet
1.5km
1.7km
summary of OBSERVATION -
the paper boards are too large and block the handle of trolley Vision is blocked by the paper boards the trolley are not stable when it is overload difficult to push or pull on the slope rusty handle and base will easily hurt their hands or legs have to bend their bodies to put on/off things from the trolley it’s quite heavy for an elderly to carry the folded trolley have to fix the paper boards through a complex way (with ropes) some handles are too high for the elderly to control Dangerous when using the car road
Observation and Usage cycle LOAD
-bend body -fix with rope UNFOLD
TRANSPORT
-paper too large -stability -slope -rusty handle -stair -handle position
-too heavy to carry
FOLD
UNLOAD
-bend body -untie rope
Design / Improve Opportunity
Net Wave the net for the Handle Funcation : avoid the stuff to fall out
Handle Adjust the height and angle of the Handle Improve the handle part / add the pad.
Base Add a holding part when the trolley is folded
solution finding
Sketch trolley stand
Brake
adjustable handle (Angle & height)
holes (fixing the ropes)
final design
RENDERING
plastic (lighter, cheaper) original material is for user to load more than 150kg
77cm (average handrail height)
500cm
770cm
Brake safe on slope
To Tie the Ropes
Stand - To stableize during Loading
Handle
THANK YOU