Lever-Chain Mechanism Design For All Terrain Wheelchair

Ghazali, Muhammad Imran (2019) Lever-Chain Mechanism Design For All Terrain Wheelchair. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

Text (24 Pages) Lever-Chain Mechanism Design For All Terrain Wheelchair.pdf - Submitted Version Download (987kB)

Abstract

This paper includes design and motion study on lever-chain mechanism design for the all-terrain wheelchair. The conventional wheelchair is reported to be responsible for musculoskeletal pain in the upper limbs. Therefore, there are various technique and mechanism utilized in the improvement of a conventional wheelchair. A researcher has developed a lever propelled wheelchair and fabricated the wheelchair according to the market needs. Some of the Person with Disabilities (PWD) who lived in rural areas cannot afford to own a wheelchair. This work aimed to develop a lever chain wheelchair that has the lowest cost mechanism and easy maintenance which the wheelchair can be repaired anywhere in the bicycle shop. Moreover, motion study through Solidworks has been done to ensure the lever chain wheelchair are purposely efficient in mechanical advantage and mechanical efficiency. So in this design, the lever is used to transmit the force to move the wheelchair instead of applying the force on push rim. This wheelchair is designed in such a way that requires less effort for more movement and it cheaper than the advanced wheelchair such as an electric wheelchair or motorized wheelchair. Basic part in a bicycle is used in this wheelchair to ensure the basic mechanism sprocket and freewheel that transmit the power drive through rotating chain are fully utilized. This mechanism is far most the cheapest mechanism and easy to maintain and repaired

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