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A STUDY ON ERGONOMIC EGG-SHAPED FOUR-BAR LINKAGE PROPULSION MECHANISM FOR MANUAL WHEELCHAIRS |
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| รหัสดีโอไอ | |
| Creator | Attakorn Suwananthawong, and Dulyachot Cholaseuk |
| Title | A STUDY ON ERGONOMIC EGG-SHAPED FOUR-BAR LINKAGE PROPULSION MECHANISM FOR MANUAL WHEELCHAIRS |
| Contributor | - |
| Publisher | TuEngr Group |
| Publication Year | 2563 |
| Journal Title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| Journal Vol. | 11 |
| Journal No. | 13 |
| Page no. | 11A13C: 1-7 |
| Keyword | Kinematic synthesis, Elliptical drive, Isokinetic, EEF propulsion mechanism, Push-rim wheelchairs, Four-bar linkage mechanism. |
| URL Website | http://TuEngr.com/Vol11_13.html |
| Website title | ITJEMAST V11(13) 2020 @ TuEngr.com |
| ISSN | 2228-9860 |
| Abstract | Most manual wheelchair users use conventional push-rim wheelchairs. Although manual push-rim wheelchairs help promotes a good lifestyle, the non-ergonomic, high muscular demand of non-continuous push motions can trigger severe upper extremity injuries. In this study, a new four-bar linkage propulsion mechanism is introduced. The mechanism was designed to provide continuous propulsion while allowing the wrist movement to follow the ergonomic egg-shaped path. A prototype was built and tested. User opinions indicated that they experienced a more comfortable ride than in the conventional push-rim wheelchair. Overall, the use of the four-bar linkage mechanism causes less strain to muscles and should reduce fatigue during prolonged usages. |
