Barrier-Free Wheelchair with a Mechanical Transmission

Wheelchairs are an important means of transportation for the elderly and disabled. However, the movement of wheelchairs on long curbs and stairs is restricted. In this study, a wheelchair for climbing stairs was developed based on a mechanical transmission system that rotates the entire driving part...

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Main Authors: Jongseok Lee, Wonhyeong Jeong, Jaeoh Han, Taesu Kim, Sehoon Oh
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/11/5280
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author Jongseok Lee
Wonhyeong Jeong
Jaeoh Han
Taesu Kim
Sehoon Oh
author_facet Jongseok Lee
Wonhyeong Jeong
Jaeoh Han
Taesu Kim
Sehoon Oh
author_sort Jongseok Lee
collection DOAJ
description Wheelchairs are an important means of transportation for the elderly and disabled. However, the movement of wheelchairs on long curbs and stairs is restricted. In this study, a wheelchair for climbing stairs was developed based on a mechanical transmission system that rotates the entire driving part through a link structure and an actuator to change the speed. The first mode drives the caterpillar, and the second mode drives the wheels. When driving on flat ground, it uses landing gears and wheels, and when climbing stairs, it uses the caterpillar; accordingly, a stable driving is possible. The stability of the transmission is confirmed through stress analysis. The method used in our study makes it is possible to manufacture lightweight wheelchairs because a single motor drives both the wheel and caterpillar through the transmission system.
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spelling doaj.art-b876114f1d014ecb92003919ef19591c2023-11-21T23:04:26ZengMDPI AGApplied Sciences2076-34172021-06-011111528010.3390/app11115280Barrier-Free Wheelchair with a Mechanical TransmissionJongseok Lee0Wonhyeong Jeong1Jaeoh Han2Taesu Kim3Sehoon Oh4Mechanical Engineering Department, Chung-Ang University, Seoul 06974, KoreaMechanical Engineering Department, Chung-Ang University, Seoul 06974, KoreaMechanical Engineering Department, Chung-Ang University, Seoul 06974, KoreaMechanical Engineering Department, Chung-Ang University, Seoul 06974, KoreaMechanical Engineering Department, Chung-Ang University, Seoul 06974, KoreaWheelchairs are an important means of transportation for the elderly and disabled. However, the movement of wheelchairs on long curbs and stairs is restricted. In this study, a wheelchair for climbing stairs was developed based on a mechanical transmission system that rotates the entire driving part through a link structure and an actuator to change the speed. The first mode drives the caterpillar, and the second mode drives the wheels. When driving on flat ground, it uses landing gears and wheels, and when climbing stairs, it uses the caterpillar; accordingly, a stable driving is possible. The stability of the transmission is confirmed through stress analysis. The method used in our study makes it is possible to manufacture lightweight wheelchairs because a single motor drives both the wheel and caterpillar through the transmission system.https://www.mdpi.com/2076-3417/11/11/5280wheelchairtransmissionstairs-climbing
spellingShingle Jongseok Lee
Wonhyeong Jeong
Jaeoh Han
Taesu Kim
Sehoon Oh
Barrier-Free Wheelchair with a Mechanical Transmission
Applied Sciences
wheelchair
transmission
stairs-climbing
title Barrier-Free Wheelchair with a Mechanical Transmission
title_full Barrier-Free Wheelchair with a Mechanical Transmission
title_fullStr Barrier-Free Wheelchair with a Mechanical Transmission
title_full_unstemmed Barrier-Free Wheelchair with a Mechanical Transmission
title_short Barrier-Free Wheelchair with a Mechanical Transmission
title_sort barrier free wheelchair with a mechanical transmission
topic wheelchair
transmission
stairs-climbing
url https://www.mdpi.com/2076-3417/11/11/5280
work_keys_str_mv AT jongseoklee barrierfreewheelchairwithamechanicaltransmission
AT wonhyeongjeong barrierfreewheelchairwithamechanicaltransmission
AT jaeohhan barrierfreewheelchairwithamechanicaltransmission
AT taesukim barrierfreewheelchairwithamechanicaltransmission
AT sehoonoh barrierfreewheelchairwithamechanicaltransmission