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Design of Braking System in Stair Climbing Wheel Chair for Disabled

Author(s):

B. Elamvazhudi , IFET COLLEGE OF ENGINEERING; K. Saranraj , IFET COLLEGE OF ENGINEERING; G. Saravanan, IFET COLLEGE OF ENGINEERING

Keywords:

Stair Climbing Wheel Chair, Braking System in Stair Climbing Wheel Chair for Disabled

Abstract

The main goal of this smart staircase climbing wheelchair project is reduce the cost of powered wheelchair and also locomotion of staircase by using of middle class people. The population of people with increase disabilities has significantly during the previous century. As the data come from the National Health Interview Survey (NHIS), two distinct developments have contributed to the increasing generally predominance of disability.as well as rapid increase that is due to health deficiencies and accidents. More individual persons have problem to use a conventional wheelchair. A current clinical appraisal indicates that 9%-10% of patients who received power wheelchair training found it extremely difficult to use for their activities of daily life style .40% of patients found the maneuvering, directional and steering tasks difficult or impossible. Generally the physically challenged people and paralyzed patients do their daily activities on wheelchairs. The disabled persons are to face an more difficulties, when they have to locomotion of ascend or descend the staircase. For example, to enter or exit erections, that have no slopes, go up and down in erections that have no lifts or pedestrian bridges, in these state of affairs, several helpers are necessary to carry a disabled person and their wheelchair. This leads to a possibility of injury for both the disabled persons and the helpers. This project was aimed to enhance the quality of life provides for the disabled people by supporting the wheelchair to climbing the staircase. To reduce number of helpers to only one person and wheelchair. This system is used to control the locomotion of a manual operated wheelchair by means of joystick control system wheelchair depends on the motor control and drive system, which consists of arduino microcontroller and low speed DC stepper motor. The steel rod is penta shaped and each rod is equally inclined of 72°from each other. At the time of climbing, one wheel that is the idle wheel will be in contact with the ground and the another wheel will be in contact with the stair. The motion takes place only when we pull the wheel chair backwards towards the staircase. The main aim of our project is to provide stability to the person who travels in the wheel chair (i.e., a large support base and maintain the overall centre of gravity as low as possible) the designed stair-climbing system consisted of two 5-spokes wheels and the slot plates. The 5-spokes wheels were used for climbing the stairs. The slot plates were used for sliding the rear wheels of the wheelchair. The 5-spokes wheels were installed at the rear of the wheelchair and were driven by power from an electric motor. When climbing the stair, the rear wheels were slid to the front of the wheelchair. To move on the floor, the rear wheels were slid back to the rear of the wheelchair. From test results, the wheelchair with the stair-climbing system could ascend and descend the stairs with the maximum riser height of 200 mm. The maximum payload was 80 kg.

Other Details

Paper ID: IJSRDV5I41306
Published in: Volume : 5, Issue : 4
Publication Date: 01/07/2017
Page(s): 1664-1667

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