SIDE VIE W
1: 10 SCALE
FRONT VIE W
1: 10 SCALE REAR VIE W 1: 10 SCALE
1: 10 SCALE
LFC FULL ASSY
SHEET 1 OF 1
UNLESS OTHERWISE SPECIFIED:
SCALE: 1: 10 WEIGHT:
REV DWG. NO.
GOGRIT.ORG NAME DATE
DIMENSIONS ARE IN INCHES
ANGULAR: MACH 1 BEND 3
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS
DO NOT SCALE DRAWING
In the United States and other developed nations, much of the built envi- ronment is designed to accommodate people in wheelchairs. Most loca- tions in urban areas are accessible via modest-grade ramps and smooth sidewalks possessing curb cuts. The goal is for people with mobility-based isabilities to have as much independent access to these locations as possible. ¶ The reality is much different for the 20 million to 40 million people in
the developing world who require the use of a wheelchair [ 17, 6, 2]. Paved roads
and sidewalks are often non-existent, and in many cases locations are linked
only by a network of rough or muddy footpaths. In such conditions, a conventional wheelchair provides only limited mobility and the ability for people with
disabilities to help support themselves is restricted.
AMOS WINTER is the Robert N.
Noyce Career Development Assistant
Professor in the Department of
Mechanical Engineering at MI T.
His work focuses on the marriage
of mechanical design theory and
user-centered product design for
emerging markets and developing
countries. He is the principal inventor
of the Leveraged Freedom Chair. He
is also a founder of Global Research
Innovation and Technology.
EAST AFRICA, INDIA, VIETNAM
The idea behind the Leveraged Freedom Chair
(LFC) was conceived – and the technology
evolved – through field trials in East Africa,
Vietnam, Guatemala, and India. The LFC
project is an example of stakeholder-driven
innovation. That is, our partners in developing
countries did not simply articulate their needs,
but they participated in the entire design
process in order to identify and then create
solutions as well.
The technology was directed towards a
tractable and viable product by engaging
stakeholders that represent each link in the
The Leveraged Freedom Chair is a product of stakeholder-
driven innovation—the designers teamed successfully
with partners and customers to get it right.
FIG 1: Indian Prototype LFC Assembly
and foot straps helps secure user to the chair.
has 26-inch bicycle wheels, the size
typically used on mountain bicycles