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公开(公告)号：US10577050B2
公开(公告)日：2020-03-03
申请号：US15390687
申请日：2016-12-26
Applicant: SHIMANO INC.
Inventor： Kenichi Akanishi , Atsuhiro Emura , Sota Yamaguchi , Toshinari Oishi
Abstract: A bicycle sprocket comprises a sprocket body and chain-driving teeth. The chain-driving teeth comprises at least one first tooth and at least one second tooth. The at least one first tooth has a first circumferential tooth-length defined in a circumferential direction at a radial location defined in vicinity of a reference line. The at least one second tooth has a second circumferential tooth-length defined in the circumferential direction at the radial location. The first circumferential tooth-length is larger than the second circumferential tooth-length. A dimensional difference between the first circumferential tooth-length and the second circumferential tooth-length is equal to or smaller than 1 mm.
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公开(公告)号：US09789928B2
公开(公告)日：2017-10-17
申请号：US15013955
申请日：2016-02-02
Applicant: SHIMANO INC.
Inventor： Atsuhiro Emura , Toshinari Oishi , Yusuke Nishimoto , Sota Yamaguchi , Kohei Obuchi
CPC classification number: B62M6/50 , B62K25/286 , B62M9/12 , B62M9/134 , B62M9/14 , B62M25/08 , B62M2025/006 , F16H57/05
Abstract: A bicycle transmission apparatus comprises a base member, a first transmission member, a second transmission member, and a first coupling member. The first transmission member is rotatable relative to the base member about a first rotational axis and is movable relative to the base member in an axial direction parallel to the first rotational axis. The second transmission member is rotatable relative to the base member about a second rotational axis and is stationary relative to the base member in the axial direction. The first coupling member is configured to couple the first transmission member to the second transmission member to transmit rotation of the first transmission member to the second transmission member at a variable speed stage which is variable in accordance with at least one positional relationship among the first transmission member, the second transmission member, and the first coupling member in the axial direction.
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公开(公告)号：US09873287B2
公开(公告)日：2018-01-23
申请号：US15056931
申请日：2016-02-29
Applicant: SHIMANO INC.
Inventor： Atsuhiro Emura , Toshinari Oishi , Yusuke Nishimoto , Sota Yamaguchi , Kohei Obuchi
CPC classification number: B60B27/023 , B60B27/0031 , B60B27/047 , B60Y2200/13 , B62M9/10 , F16D27/118 , F16D28/00 , F16D41/24 , F16D41/26 , F16D41/36 , F16D48/06
Abstract: A bicycle hub assembly comprises a hub axle, a hub shell, a sprocket support body, and a clutch. The sprocket support body is rotatably mounted on the hub axle to rotate about a rotational axis. The sprocket support body is rotatable relative to the hub axle and the hub shell about the rotational axis. The clutch has a first coupling state where a pedaling rotational force is transmitted from the sprocket support body to the hub shell in a first rotational direction during pedaling, a first release state where the hub shell is rotatable relative to the sprocket support body in the first rotational direction during coasting, and a second coupling state where a coasting rotational force is transmitted from the hub shell to the sprocket support body in the first rotational direction during coasting.
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公开(公告)号：US09868491B1
公开(公告)日：2018-01-16
申请号：US15216115
申请日：2016-07-21
Applicant: Shimano Inc.
Inventor： Toshinari Oishi
Abstract: A bicycle sprocket assembly is basically provided with a first sprocket having a first pitch circle diameter, a second sprocket having a second pitch circle diameter, a third sprocket having a third pitch circle diameter, a fourth sprocket having a fourth pitch circle diameter, and a sprocket supporting member. At least one of the second and third sprockets is attached to the sprocket supporting member. The first sprocket is attached to the second sprocket so that the second sprocket is positioned between the first sprocket and the sprocket supporting member in an axial direction. The fourth sprocket is attached to the third sprocket so that the third sprocket is positioned between the sprocket supporting member and the fourth sprocket in the axial direction. The second sprocket is adjacent to the third sprocket without another sprocket positioned therebetween in the axial direction.
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公开(公告)号：US10316951B2
公开(公告)日：2019-06-11
申请号：US15209686
申请日：2016-07-13
Applicant: SHIMANO INC.
Inventor： Atsuhiro Emura , Toshinari Oishi , Yusuke Nishimoto , Sota Yamaguchi , Kohei Obuchi , Kento Mitsuyasu
IPC: B62M6/55 , F16H57/025 , B62K25/28 , B62K25/30 , B62M1/36
Abstract: A bicycle drive unit comprises a housing configured to be mounted to a first base member. The housing includes a first wall at least partly defining an internal space to at least partly accommodate a bicycle crank having a crank rotational axis. The first wall includes a first transmitting surface disposed to at least partly face upward in a bicycle upright state where the crank rotational axis horizontally extends and the housing is mounted on the first base member. The first transmitting surface is configured to face a first receiving surface of the first base member to transmit an upward force from the housing to the first base member. The first transmitting surface being at least partly disposed below the crank rotational axis in the bicycle upright state.
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Patent Agency Ranking
公开(公告)号：US10309515B2
公开(公告)日：2019-06-04
申请号：US15489675
申请日：2017-04-17
Applicant: SHIMANO INC.
Inventor： Akihiro Ohno , Toshinari Oishi , Tsuyoshi Fukumori
Abstract: A bicycle rear sprocket comprises a sprocket body, a plurality of sprocket teeth, a shifting facilitation recess, and an upshifting facilitation projection. The plurality of sprocket teeth extends radially outwardly from the sprocket body. The shifting facilitation recess is to facilitate a shifting operation in which a bicycle chain is shifted between the bicycle rear sprocket and a smaller rear sprocket adjacent to the bicycle rear sprocket without another sprocket between the bicycle rear sprocket and the smaller rear sprocket. The upshifting facilitation projection is provided in the shifting facilitation recess to support the bicycle chain in an upshifting operation in which the bicycle chain is shifted from the bicycle rear sprocket to the smaller rear sprocket.
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公开(公告)号：US09932090B2
公开(公告)日：2018-04-03
申请号：US15168214
申请日：2016-05-30
Applicant: SHIMANO INC.
Inventor： Toyoshi Yoshida , Toshinari Oishi , Tsuyoshi Fukumori
CPC classification number: B62M9/10 , B62M9/12 , F16H55/303
Abstract: A bicycle rear sprocket assembly has a rotational center axis. The bicycle rear sprocket assembly comprises a first sprocket and a second sprocket. The first sprocket includes a first sprocket body and a first chain-engagement structure. The first sprocket body is made of a non-metallic material. The first chain-engagement structure is made of a metallic material and is configured to engage with a bicycle chain. The second sprocket includes a second sprocket body and a second chain-engagement structure. The second sprocket body is made of a non-metallic material and attached to the first sprocket body. The second chain-engagement structure is made of a metallic material and is configured to engage with the bicycle chain.
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公开(公告)号：US09403578B1
公开(公告)日：2016-08-02
申请号：US14615364
申请日：2015-02-05
Applicant: SHIMANO INC.
Inventor： Toyoshi Yoshida , Toshinari Oishi , Tsuyoshi Fukumori
CPC classification number: B62M9/10 , B62M9/12 , F16H55/303
Abstract: A bicycle sprocket assembly comprises a first sprocket, a second sprocket, a first intervening member, and a second intervening member. The first sprocket includes a first sprocket body and a first chain-engagement structure. The second sprocket includes a second sprocket body and a second chain-engagement structure. The first intervening member is positioned between the first sprocket and the second sprocket in an axial direction parallel to a rotational center axis. The second intervening member is positioned between the first sprocket and the second sprocket in the axial direction. The second intervening member is provided radially outwardly from the first intervening member with respect to the rotational center axis. The second intervening member is attached to at least one of the first sprocket and the second sprocket and has an elongated shape extending along a first reference plane perpendicular to the rotational center axis.
Abstract translation: 自行车链轮组件包括第一链轮，第二链轮，第一中间构件和第二居间构件。 第一链轮包括第一链轮主体和第一链接结构。 第二链轮包括第二链轮主体和第二链接结构。 第一中间构件在平行于旋转中心轴线的轴向上位于第一链轮和第二链轮之间。 第二中间构件沿轴向位于第一链轮和第二链轮之间。 第二中间构件相对于旋转中心轴线从第一中间构件径向向外设置。 第二中间构件附接到第一链轮和第二链轮中的至少一个，并且具有沿垂直于旋转中心轴线的第一参考平面延伸的细长形状。
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公开(公告)号：US10968998B2
公开(公告)日：2021-04-06
申请号：US15686120
申请日：2017-08-24
Applicant: SHIMANO INC.
Inventor： Hiroshi Fujita , Kazuki Koshiyama , Toshinari Oishi
Abstract: A bicycle rear sprocket adapter comprises a plurality of external spline teeth and a plurality of internal spline teeth. The plurality of external spline teeth is configured to engage with a bicycle rear sprocket assembly. The plurality of internal spline teeth is configured to engage with a bicycle hub assembly. At least two internal spline teeth of the plurality of internal spline teeth are circumferentially arranged at a first internal pitch angle with respect to a rotational center axis of the bicycle hub assembly. The first internal pitch angle ranges from 10 degrees to 20 degrees.
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公开(公告)号：US10300986B2
公开(公告)日：2019-05-28
申请号：US15140441
申请日：2016-04-27
Applicant: SHIMANO INC.
Inventor： Atsuhiro Emura , Toshinari Oishi , Yusuke Nishimoto , Sota Yamaguchi , Kohei Obuchi , Kento Mitsuyasu
Abstract: A bicycle transmission apparatus comprises a base member, a first transmission member, a second transmission member, a first coupling member, a first guide structure, a switching device, and a transmission controller. The switching device is configured to switch a position of the first transmission member relative to the base member in an axial direction between a first axial position and a second axial position. The transmission controller is configured to control the switching device and the first guide structure so as not to change a first engagement state of the first coupling member from one cogwheel to another adjacent cogwheel among first cogwheels when the first transmission member moves relative to the base member in association with a movement of the first guide structure relative to the base member to change a second engagement state of the first coupling member from one cogwheel to another adjacent cogwheel among second cogwheels.
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