The design of a portaging apparatus for transporting bicycles

摘要

Commuting by bicycle has gained more and more popularity in recent years due to environmental, economic and socials factors. In Bangkok this trend is also catching on, with more and more people commuting by bicycle. Unfortunately, the traffic system in Bangkok does not facilitate this kind of transportation. Bicycle commuters need to work around traffic issues and one such issue is crossing the road which, in Bangkok, means crossing over numerous public footbridges. The purpose of this study was to find a means of assisting cyclists to overcome obstacles, such as public footbridges, when commuting. A methodology was then developed to design and evaluate a apparatus to facilitate cyclists in lifting and carrying their bicycle up and down such footbridges. Seven test subjects were recruited to participate in the testing of the designed apparatus. The aged between 28 and 39 years were in good health and exercised regularly, with some riding bicycles recreationally and three being regular users. Every test subject wore the Heart rate monitor. They were required to conduct two rounds as part of the test: one not using the apparatus and one using the designed apparatus. Based on heart rate monitor, comfort rating scale and Body map results, the researcher was able to conclude the results by comparing all the information from using and not using the apparatus. The apparatus designed as a lifting apparatus could facilitate a better lifting and carrying performance by reducing the use of energy. Moreover, use of the apparatus encouraged participants to employ a standardized lifting technique (i.e. every subject lifted the bicycle in a uniform manner rather than arbitrarily) which has the potential to minimize discomfort and injury.