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公开(公告)号:US20190300109A1
公开(公告)日:2019-10-03
申请号:US16275767
申请日:2019-02-14
Applicant: SHIMANO Inc.
Inventor: Azusa Yamazaki , Kenji Kamada
Abstract: It is intended to provide a bicycle rear sprocket assembly that can reduce shock in a gear shifting operation and can reduce changing of gear ratio during the gear shifting operation. A bicycle rear sprocket assembly includes a plurality of sprockets. A total tooth number of at least one of the plurality of sprockets is an even number. The plurality of sprockets have at least two coaxially arranged sprockets. At least one of the at least two coaxially arranged sprockets has an upshifting facilitation area and a downshifting facilitation area. Each of the at least two coaxially arranged sprockets has a total tooth number that is equal to or larger than eighteen. The tooth number difference is equal to or smaller than seven.
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公开(公告)号:US12138959B2
公开(公告)日:2024-11-12
申请号:US17392749
申请日:2021-08-03
Applicant: Shimano Inc.
Inventor: Yuuya Yoneda , Kenkichi Inoue , Azusa Yamazaki
Abstract: A component assembly for a human-powered vehicle, the component assembly basically includes a member and a wire rod. The member includes a wall that has a first surface, a second surface opposite the first surface and an opening. The wire rod passes through the opening in the wall of the member. The wire rod includes a first portion located on the first surface side of the wall and a second portion located on the second surface side of the wall. The first portion includes an abutment portion that contacts the first surface adjacent the opening in the wall to suppress axial movement of the first portion of the wire rod through the opening in the wall with respect to an axial direction with respect to a center axis of the opening in the wall.
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公开(公告)号:US11414157B2
公开(公告)日:2022-08-16
申请号:US16275767
申请日:2019-02-14
Applicant: SHIMANO Inc.
Inventor: Azusa Yamazaki , Kenji Kamada
Abstract: It is intended to provide a bicycle rear sprocket assembly that can reduce shock in a gear shifting operation and can reduce changing of gear ratio during the gear shifting operation. A bicycle rear sprocket assembly includes a plurality of sprockets. A total tooth number of at least one of the plurality of sprockets is an even number. The plurality of sprockets have at least two coaxially arranged sprockets. At least one of the at least two coaxially arranged sprockets has an upshifting facilitation area and a downshifting facilitation area. Each of the at least two coaxially arranged sprockets has a total tooth number that is equal to or larger than eighteen. The tooth number difference is equal to or smaller than seven.
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公开(公告)号:US10787032B2
公开(公告)日:2020-09-29
申请号:US15790589
申请日:2017-10-26
Applicant: Shimano Inc.
Inventor: Azusa Yamazaki
Abstract: A bicycle hub includes a hub axle, a hub body, an electric power generator, a freewheel and an electric unit. The hub body is rotatable around the hub axle. The electric power generator is disposed between the hub axle and the hub body. The electric power generator is configured to generate electric power by a relative rotation of the hub axle and the hub body. The freewheel is configured to support a sprocket. The freewheel is connected to the hub body and is rotatable around the hub axle. The electric component is disposed between the hub axle and the freewheel in a radial direction with respect to the center axis. The electric unit is electrically connected to the electric power generator.
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