著者

高見 正利 橋詰 努 北川 博巳 米田 郁夫 黒田 大治郎 奥 英久 糟谷 佐紀

出版者

一般社団法人日本機械学会

雑誌

交通・物流部門大会講演論文集

巻号頁・発行日

vol.2007, no.16, pp.349-352, 2007-12-12

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We developed a new instrumentation for measuring traveling characteristics of wheelchair and set up running roads with various surface shapes in our laboratory. We measured driving torque and whole-body vibration during running on these road surfaces. Root-mean-square (RMS) values of acceleration vibration were calculated for the three directions according to the ISO 2631 procedure.The driving torque of this system, like a manual wheelchair on the market, increases in proportion to height of steps on the road surface. In steady state running, the driving torque increases in proportion to velocity of wheelchair. The whole-body vibration at the sheet of wheelchair increases in proportion to both the heights of steps on the road surface and the velocity of wheelchair. In both a field and a laboratory, the vertical component of the vibration was greater than the fore-aft or horizontal vibration. The whole-body vibration value of a dummy mounted wheelchair shows a similar tendency to that of human beings. The following expression is derived from the above: this new measuring system is effective in detecting the presence of the vibration and the driving torque of manual wheelchair on various road surfaces.