1. No category

SITAQ R1.0
New Assistive mobility : A wheelchair for Omiya campus
Group A
Stefano Alleva*
Matteo Antonioli*
Kento Oaku
Keisuke Kaneko*
Fumiko Tayama
Introduction

Barrier-free for the people with disabilities
[Tokyo dome hotel]
・Seating to use the elevator
・Seating to use wheelchair person’s special rooms, toilets and parkings
・Seating to lend wheelchairs
[Saitama super-arena]
・ Seating to use wheelchair person’s special roads, toilets and seats
There are Considerations for barrier-free in various places
Introduction

Barrier-free for the people with disabilities
[Shibaura institute of technology]
～Regard points～
・Seating to use wheelchair person’s buses and toilets
・Slopes
・Barrier-free
・Automatic doors and slide doors
・・・etc
～Not Regard points～
・Pushing doors
・Steps
・Miss-match equipment
・・・etc
Mission

considerations for Barrier-free in our
university is advanced,
however it’s not complete

The aim of this workshop is to
develop a new assist mobility to use
in the Omiya campus of SIT
Present
Otto Bock Modular M2
NABTESCO NAW-22C-HP-G
YAMAHA JWX-II
KAWAMURA KA900
YAMAHA JW-active
MIKI Grand Fletcher
Encountered Problems in the fieldwork
Narrow road
mud
mud slope
Step
動画リンクが掲載されていましたが、
容量オーバーのため、HP掲載版では
割愛しています。
2014年6月 芝浦工業大学 国際部
Long slope
Not flat road
動画リンクが掲載されていました
が、容量オーバーのため、HP掲載
版では割愛しています。
2014年6月 芝浦工業大学 国際部
Omiya campus of SIT
3. Encountered Problems
in the field work
Condition
Name of
product
Step
Modular M2
△
△
×
×
△
△
×
○
×
JWX-Ⅱ
◎
○
△
△
△
△
△
○
×
JW-active
◎
○
△
△
△
△
△
○
×
NAW-22C-HP-G
◎
○
△
△
△
△
△
○
×
KA900
△
△
×
△
△
△
×
○
×
Grand Fletcher
×
×
×
×
×
×
×
◎
×
＊Narrow space: < 80 [cm]
＊Slop: > 8[°]
Grass Gravel Not flat road
Narrow
Reaching
Mud transfers
Road
objects
Slope
◎：very able
○：able
△：to be improved
×：not provided
Encountered Problems in the field work
1.Slopes
2.Steps
3.Grass & not flat road
4.Narrow road
5.Transfers
6.Reaching objects
7.Comfortable seating
WE HAVE 7 PROBLEMS
WE FOUND 7 SOLUTIONS
1-Slopes
We decided to use a full electric motorized wheelchair

Rear Tire traction Motor

Rear tire Steering Motor

Battery with high % of discharge
2-Steps
We use bigger wheel on the front of wheelchair and…
A special type of tyres…
動画リンクが掲載されていましたが、ファイル
容量の都合上、HP掲載版では削除しています。
（2014年6月 芝浦工業大学 国際部）
3-Grass & not flat road
The problem of not flat road & traction on grass is that the
actual wheelchairs have more than 3 point of contact on the
ground. This means that the structure of the wheelchair is
hyperstatically bonded. We decided to use a 3 wheels
whelchair, that is assimilable to an isostatic structure.
VS
4-Narrow road
A wheelchair is a cumbersome vehicle that hardly turn in daily life routes.
We decide to improve a wheelchair able to turn on the spot with reduced
dimensions; using a single rear steering & driving wheel and electronic control of the
front brake for a better steering when the wheelchair is stopped.
5-Transfers
Transfers from wheelchair to toilet is a very serious problem. So, we decided to use a
removable seat, compatible with actual lifts in disabled toilets, avoiding to lift the
person and lifting the whole seat; this would be a confortably way to transfers. The seat
present a slot that allow the disable to use the toilet.
6-Reaching objects
We used a scissor lift, actuaded by an alectrical linear actuator, between the chassis
and the seat. This solution allow reaching higher position, such as a book in high
bookcase.
HEIGHT-ANGLE L=400mm
Height[mm]
300
200
100
0
0
10
20
30
40
50
60
70
60
70
60
70
Angle[°]
FORCE1-ANGLE Q=1000N
60000
Force[N]
50000
40000
30000
20000
10000
0
0
10
20
30
40
50
Angle[°]
FORCE2-ANGLE Q=1000N
60000
50000
Force[N]
6-Reaching objects
400
40000
30000
20000
10000
0
0
10
20
30
40
Angle[°]
50
7-Confortable seating
In order to distribute the weight of the back on the seat we used an ectronically
controlled actuator on one arm of the scissor lift, in this way the seat can tilt allowing
a comfortable position.
Concept
And from the concept we realized the 3D model
Here’s to you SITAQ R1.0
Light weight frame
Airless tyres
Rear driving & steering wheel
Scissor lift
動画リンクが掲載されていましたが、容量オーバーのため、HP掲載版では割愛し
ています。2014年6月 芝浦工業大学 国際部
Confortable seat
So..SITAQ R1.0 is here
動画リンクが掲載されていましたが、容量オー
バーのため、HP掲載版では割愛しています。
2014年6月 芝浦工業大学 国際部