モータの逆転防止装置とその逆転防止装置を備えた小型モータ

Device for preventing reverse rotation of motor, and small-sized motor equipped with the reverse rotation preventing device

Abstract

PROBLEM TO BE SOLVED: To provide a noise-free and inexpensive and non-contact-type reverse rotation preventive device for a small-sized motor. SOLUTION: Rachets A and B, where teeth in the shape of saw teeth provided severally in the axial direction are arranged in an annular form, are formed at the opposite faces of the bearing 2, constituting a fixed member and the rotating plate 4 constituting a rotating member which are arranged facing in a pair via a lubricant on the same axis. The teeth of the rachet A, B are made into sharply sloped surfaces and into gently sloped surfaces to the opposite faces 2dd and 4bb, and further they are arranged so that the sharply sloped surfaces and the sharply sloped surfaces, and the gently sloped surfaces and the gently sloped surfaces respectively face each other. COPYRIGHT: (C)2005,JPO&NCIPI
【課題】無騒音で安価な非接触型の小型モータの逆転防止装置を提供する。 【解決手段】同一軸線上に潤滑剤を介して対向して配置される一対の固定部材を構成する軸受2と、回転部材を構成する回転板4の向かい合う面には、それぞれ軸方向に設けられた鋸歯状の歯を円環状に配置されたラチェットA、Bが形成され、そのラチェットの歯は前記向かい合う面2dd、4bbに対し急勾配斜面と緩勾配斜面で形成され、さらに、急勾配斜面と急勾配斜面、緩勾配斜面と緩勾配斜面が対向するように配置されている。 【選択図】 図2

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