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公开(公告)号：US11519488B2
公开(公告)日：2022-12-06
申请号：US16972609
申请日：2018-06-12
发明人： Yoichi Morio , Tatsuya Aoyagi
摘要： A resin gear includes an annular metal bush, an annular resin member provided around the metal bush and having a tooth profile formed in an outer peripheral portion, and an elastic member provided between the metal bush and the resin member. The elastic member has a first overhanging portion overhanging one end surface of the metal bush and one end surface of the resin member outward in an axial direction of the resin gear.
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公开(公告)号：US11549576B2
公开(公告)日：2023-01-10
申请号：US16972617
申请日：2018-06-21
发明人： Yoichi Morio , Tatsuya Aoyagi
摘要： A space and an elastic member have a first part where a distance between an outer peripheral surface of a metal bush and an inner peripheral surface of a resin member is a first distance, a second part where the distance between the outer peripheral surface and the inner peripheral surface is a second distance different from the first distance, and a third part where the distance between the outer peripheral surface and the inner peripheral surface is a third distance different from the first distance in a cross section along a radial direction of a resin gear. The first part is provided between the second part and the third part in an axial direction of the resin gear.
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公开(公告)号：US11512767B2
公开(公告)日：2022-11-29
申请号：US16972608
申请日：2018-06-21
发明人： Yoichi Morio , Tatsuya Aoyagi
摘要： A resin gear includes an annular metal bush and an annular resin member provided around the metal bush. The metal bush and the resin member are disposed so as to be relatively rotatable in a direction of rotation of the resin gear. A plurality of spaces entering an outer peripheral surface of the metal bush and an inner peripheral surface of the resin member are formed, so as to be aligned along the direction of rotation, between the metal bush and the resin member. The space has, in at least one end portion in an axial direction of the resin gear, inner surfaces intersecting with the axial direction. An elastic member is disposed in the space. The elastic member engages with the inner surfaces.
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