ADSORPTIVE STRUCTURE FOR ARMATURE AND ROTOR

• Main Authors: TOKUDA AKIRA, FUKUNARI MARINA, TADA MIKIHIRO, SATO KOJI, SASANUMA KYOHEI, KITAYAMA NAOTSUGU, SAITO TAKAHIDE
• Format: Patent
• Language: English; Japanese
• Published: 29.03.2018
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a rotation transmission device capable of preventing collision sound of an armature and a rotor from occurring, and stabilizing operation of adsorbing the armature to the rotor.SOLUTION: A buffer member 50 is provided between an armature 30 and a rotor 31. The buffer member 50 comprises a metal ring 51 movably supported in an axial direction to the armature 30, and a rubber ring 52 compressed in the axial direction between the armature 30 and the metal ring 51 as the armature 30 approaches the rotor 31. The rubber ring 52 has a shape whose axial thickness changes along a circumferential direction so that the rubber ring is compressed in a longer region in the circumferential direction in a case where a compression amount in the axial direction is made large compared to a case where the compression amount in the axial direction is small.SELECTED DRAWING: Figure 1 【課題】アーマチュアとロータの衝突音が生じにくく、かつ、アーマチュアがロータに吸着される動作が安定した回転伝達装置を提供する。【解決手段】アーマチュア３０とロータ３１の間に緩衝部材５０を設ける。緩衝部材５０は、アーマチュア３０に軸方向に移動可能に支持された金属環５１と、アーマチュア３０がロータ３１に近づくに従って、アーマチュア３０と金属環５１との間で軸方向に圧縮されるゴム環５２とからなる。ゴム環５２は、軸方向の圧縮量が小さいときよりも軸方向の圧縮量が大きいときの方が周方向に長い領域で圧縮されるように軸方向厚さが周方向に沿って変化する形状を有する。【選択図】図１