期刊名称：Leonardo Electronic Journal of Practices and Technologies
印刷版ISSN：1583-1078
出版年度：2018
卷号：17
期号：32
页码：27-40
出版社：Academic Direct Publishing House
摘要：An adjustable multi nut tighter or remover for car tyre (with 114.3 PCD) was developed.The need to loosen and tighten car wheel nuts with little application of force (torque)and time spent is of great importance to most car users. Operation with the existingcommon instruments like ratchet, socket and impact wrench is quite tedious and timeconsuming. This study was aimed at designing and fabricating a device that will removeand tighten four-wheel nuts of car tyre simultaneously. The design was done usingSolidworks CAD software. The device was successfully fabricated, and performanceevaluation was carried out. The tightening and loosening of nuts were done with ease asevident from the results obtained. From the performance evaluation of the developedmachine, it took 65 seconds to loosen four nuts and 75 seconds to tighten the nuts andthe loosening and tightening process were reduced by 41% and 38% respectivelycompared to using L shaped wrench. Ergonomics consideration was put in place indesigning this device as it can be used with ease by both man and woman. The deviceis also easy to maintain, easy to handle and able to remove and tighten four-wheel nutsof car tyre at once.
关键词：Multi nut; Car tyre; Ergonomics; Tighter; Remover; Wrench; Design; Force;Efficiency
