Topics: Disability, Wheelchair, Transport Pages: 2 (570 words) Published: March 13, 2013

As we are having a good and normal life going on this world, maybe we have forgotten about our poor friends that don’t have the opportunity to undergo the normal life that we having right now. A disability may be physical, cognitive, mental, sensory, emotional, and developmental or some combination of these. A disability may be present from birth, or occur during a person's lifetime. This kind of peoples usually encounters many kind of obstacles when they carry out daily routines. Although many kind of services are provided for help them carry out their routines, for example bus services specially for them, public toilet specified for them, they really other kind of helps especially in transporting their self from one place to another. Another main and abit unsolvable problem that is always meet by the disabled people is to climb up the stairs in the public or maybe in their house.  Wheelchairs are extensively used by disabled people to enhance their personal mobility. One of the basic problems of user on manual wheelchair is overcoming architectural barriers like Krebs, stair .  The invention of wheelchair has given independence to many people who would normally have been totally dependent on other. However problem with wheelchair comes when people have Togo through stairs. In order to address this problem, many people have made mechanism of different design to climb wheelchair along stairs. One of the designs is patented by G.H. Green. His wheelchair uses ingenious mechanism to climb by making two arms move along a trajectory similar to that of a foot. This includes complex mechanism driven by motor. This mechanism is simplified by Supratim Naskar in his B. Tech. project at IIST in 2011. The aim of our project is to make a detailed design of this simplified mechanism of staircase climbing wheelchair and fabrication of its parts. This includes fabrication of different parts of mechanism which would be done in...
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