No.10（2015）11.Development of level difference clearing caster

Yasuhiro Nishikawa, Yuya Suzuki

  A level difference clearing and shock absorbing caster was developed with a simple and compact structure reducing the required force for clearing the level difference. The new caster has two features; one is the eccentric axle position frontward and upward from the rotation center of the wheel, the other is the implemented spring device in the wheel for shock absorption and attitude restoration. The experiment with a level difference of 40mm proved the reduction of maximum level-difference-clearing force by approximately 20% compared to the conventional casters.

Keywords
Caster, Level difference, Shock absorption, Eccentricity, Spring device

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