PROBLEM TO BE SOLVED: To provide an omnidirectional movement wheel which can suppress generation of noise having a high acoustic pressure at a specific frequency.SOLUTION: An omnidirectional movement wheel is equipped with a first support part 20 and a second support part 21 which so mount large diameter rollers 30 and 31 and small diameter rollers 40 and 41 as to be rotatable around respective axes X1 and X2. In the state in which a part of an end surface of each of the small diameter rollers 40 and 41 on a short diameter side is partially inserted into recesses 30c and 31c of the large diameter rollers 30 and 31, respectively, the large diameter rollers 30 and 31 and the short diameter rollers 40 and 41 are located with a space therebetween so that outer shapes thereof are arranged on a single circumference. A roller groove is formed on an outer peripheral surface of one or more of the large diameter rollers 30 and 31 and the small diameter rollers 40 and 41, and plural ungrounded areas comprising the roller groove and the space are located on a circumference C with plural different pitch intervals therebetween.
【課題】特定周波数に高い音圧を有する騒音が発生することを抑制した全方向移動車輪を提供する。【解決手段】大径ローラ30,31および小径ローラ40,41を各軸線X1,X2回りに回転自在に取り付ける第1支持部20および第2支持部21を備え、各小径ローラ40,41の小径側の端面の一部を各大径ローラ30,31の凹所30c,31c内に部分的に挿入した状態で、大径ローラ30,31および小径ローラ40,41を、それらの外形が単一の円周上に配されるように隙間を空けて配置し、大径ローラ30,31および小径ローラ40,41のうちの1以上の外周面にローラ溝が形成され、ローラ溝と隙間とからなる複数の非接地領域が、円周C上に互いに異なる複数のピッチ間隔を空けて配置されている全方向移動車輪を提供する。【選択図】図4
OMNIDIRECTIONAL MOVEMENT WHEEL AND OMNIDIRECTIONAL MOVEMENT VEHICLE EQUIPPED WITH THE SAME
全方向移動車輪およびそれを備えた全方向移動車両
2016-01-18
Patent
Electronic Resource
Japanese
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