ROTATION TRANSMISSION DEVICE AND STEER BI-WIRE TYPE VEHICULAR STEERING DEVICE

• Main Authors: TOKUDA AKIRA, ISHIKAWA SHINTARO, KITAYAMA NAOTSUGU
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2016
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MECHANICAL ENGINEERING; MOTOR VEHICLES; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRAILERS; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide a rotation transmission device in which rollers kept at engagement releasing positions hardly generate erroneous engagement.SOLUTION: This invention relates to a rotation transmission device comprising: a cylindrical surface 13 arranged at an inner periphery of an outer ring 2; a cam surface 12 arranged at an outer periphery of an inner ring 3; a pair of rollers 4a, 4b assembled while being oppositely faced in a peripheral direction between the cylindrical surface 13 and the cam surface 12; a roller repelling spring 14 for biasing the pair of rollers 4a, 4b; a spring holding part 22 arranged between the pair of rollers 4a, 4b; the first roller holder 5a for holding one roller 4a; the second roller holder 5b for holding the other roller 4b; and a holder actuator 6 for relatively moving the first roller holder 5a and the second roller holder 5b so as to cause the rollers 4a, 4b to be moved between an engaged position and an engagement releasing position. The spring holding part 22 has a roller stopper 25 for restricting a motion of each of the rollers 4a, 4b toward its outer diameter.SELECTED DRAWING: Figure 4 【課題】係合解除位置にあるローラがミス係合を生じにくい回転伝達装置を提供する。【解決手段】外輪２の内周に設けられた円筒面１３と、内輪３の外周に設けられたカム面１２と、円筒面１３とカム面１２との間に周方向に対向して組み込まれた一対のローラ４ａ，４ｂと、その一対のローラ４ａ，４ｂを付勢するローラ離反ばね１４と、一対のローラ４ａ，４ｂの間に配置されたばね保持部２２と、一方のローラ４ａを保持する第１ローラ保持器５ａと、他方のローラ４ｂを保持する第２ローラ保持器５ｂと、ローラ４ａ，４ｂが係合位置と係合解除位置との間で移動するように第１ローラ保持器５ａおよび第２ローラ保持器５ｂを相対移動させる保持器アクチュエータ６とを有する回転伝達装置において、ばね保持部２２が各ローラ４ａ，４ｂの外径側への移動を規制するローラストッパ部２５を有する。【選択図】図４