Manual wheelchair intervention on transmission system by assistive technology to increase user mobility

Abstract

Mobility is an individual's ability to be able to move freely, easily, and organized with the aim to meet the needs of the activity in order to maintain health. Individuals who have limited runs require walking aids, one of these tools is a manual wheelchair. The need for technology applied to these tools, so as to improve the quality of life of individuals who have limited runs. The goal of this research is to intervene in problems hub to improve the mobility of the manual wheelchair's user, as efforts to implement assistive technology to increase the mobility of users. To find out the needs of users, we design questionnaires based on seven key principles of universal design. Results of the questionnaire showed that wheelchair's users are fatigue when using a manual wheelchair. Preliminary studies indicate that the location of the hub effect is not significant to the speed of the wheelchair so that the suggestions given to improve the speed of the wheelchair is by change the type of hub. Then this design also uses TRIZ method, where there are some contradictions against the expected technical needs. Based on TRIZ methods, the inventive solution obtained is parameter changes, mechanical substitution, and self-service. So use internal gear 3-speed hub as a solution to the problems of transmission in a manual wheelchair.