Development of caster-wheel with vibration absorption function is one of solutions for many wheelchair users' ease and comfort. We have tried to develop comfortable and an inexpensive caster-wheel for wheelchair. The purpose of this study was to clarify the basic characteristic of the caster-wheel we developed.
The caster-wheel we developed and four casters on the market were applied to simulating test, such as passing over passageways of inside of buildings and stone paved roads. All casters were also exposed to running endurance test (200,000 machine's drum revolutions; about 157km).
The Maximum Amplitude of Accelerations (MAA) was calculated to compare at each speed. The developed caster-wheel absorbed the vibration about 50 to 60% or more against normal solid caster at each condition. The results of running endurance test were also all right. The developed caster absorbed the vibration about 15 to 35% against normal solid caster.
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