To provide a reclining device that allows movement of an internal gear and an external gear in an eccentric direction to an extent of ensuring meshing on a side on which the external gear and the internal gear mesh with each other during locking, and that can stabilize sliding by making contact with a cylindrical boss of a gear in a large area even during sliding.SOLUTION: A reclining device of the present invention includes: an external gear 10; an internal gear 20; a ring 30 having a wedge-shaped cam housing part on an inner peripheral surface side and a projection part 36 on a front face side; a pair of wedge-shaped cams 50 that allow relative rotation of the external gear 10 and the internal gear 20; a spring insertion part arranged on the front face side of the ring 30 for inserting an end part of the spring 70 between the pair of wedge-shaped cams 50; a bush 45 having a projection notch part for placing the projection part; an energization member 70 energizing the wedge-shaped cams; a driving member 60; and a rotary shaft 40 which rotates the ring 30 by fitting with the driving member 60.SELECTED DRAWING: Figure 3
【課題】ロック時に外歯歯車と内歯歯車とが噛合している側が確実に噛合する程度に内歯歯車と外歯歯車との偏心方向の移動が可能であり、摺動時においても歯車の円筒ボスと多くの面積で接することによって摺動を安定化させることができるリクライニング装置を提供する。【解決手段】本発明のリクライニング装置は、外歯歯車10と、内歯歯車20と、内周面側にくさび状カム収容部を有し、正面側に突起部36を有するリング30と、外歯歯車10と内歯歯車20の相対回転を許容する一対のくさび状カム50と、リング30の正面側に配置され、一対のくさび状カム50の間にスプリング70の端部を挿入するためのスプリング挿入部と、突起部を配置するための突起用切り欠き部を有するブッシュ45と、くさび状カムを付勢する付勢部材70と、駆動部材60と、駆動部材60に嵌合してリング30を回転させる回転シャフト40と、を備えている。【選択図】図3
RECLINING DEVICE
リクライニング装置
2023-10-04
Patent
Electronic Resource
Japanese