公开(公告)号：US20180299004A1

公开(公告)日：2018-10-18

申请号：US15489675

申请日：2017-04-17

Applicant: SHIMANO INC.

Inventor： Akihiro OHNO ,  Toshinari OISHI ,  Tsuyoshi FUKUMORI

IPC: F16H55/30

CPC classification number: F16H55/30 ,  B62M9/10

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.

公开(公告)号：US20180017131A1

公开(公告)日：2018-01-18

申请号：US15212153

申请日：2016-07-15

Applicant: Shimano Inc.

Inventor： Tsuyoshi FUKUMORI

IPC: F16G13/06

CPC classification number: F16G13/06

Abstract: A link plate for a bicycle chain is basically provided with a first link end portion, a second link end portion and a link intermediate portion interconnecting the first link end portion and the second link end portion. The first link end portion includes a first link opening having a first link center axis. The second link end portion includes a second link opening having a second link center axis parallel to the first link center axis. The link plate has a link longitudinal centerline defining a longitudinal direction. The first link end portion has a first extended edge portion extending away from the second link end portion in the longitudinal direction or the link intermediate portion has an axial protrusion protruding from an inner surface thereof in the axial direction.

公开(公告)号：US20150260260A1

公开(公告)日：2015-09-17

申请号：US14490637

申请日：2014-09-18

Applicant: SHIMANO INC.

Inventor： Tsuyoshi FUKUMORI

IPC: F16G15/04

CPC classification number: F16G15/04 ,  F16G13/06

Abstract: A bicycle chain connecting link comprises a link pin and a link plate. The link pin has a center axis. The link plate comprises an elongated opening, a guiding portion, a first protrusion, and a second protrusion. The elongated opening comprises an insertion opening and an attachment opening connected with the insertion opening. The guiding portion is configured to engage with the groove of the link pin to guide the link pin between the insertion opening and the attachment opening. The first protrusion is provided between the insertion opening and the attachment opening and is configured to be slidable relative to an outer periphery of a head portion of the link pin. The second protrusion is provided between the insertion opening and the attachment opening and is configured to be slidable relative to an outer periphery of an intermediate portion of the link pin.

Abstract translation: 自行车链条连接件包括连杆销和链板。 连杆销有一个中心轴。 连接板包括细长开口，引导部分，第一突起和第二突起。 细长开口包括插入开口和与插入开口连接的附接开口。 引导部分构造成与连杆的凹槽接合，以将连杆销引导到插入口和附接开口之间。 所述第一突出部设置在所述插入口和所述安装开口之间，并且被构造成能够相对于所述连接销的头部的外周滑动。 第二突起设置在插入口和安装开口之间，并且构造成能够相对于连杆销的中间部分的外周滑动。

公开(公告)号：US20210155316A1

公开(公告)日：2021-05-27

申请号：US16697204

申请日：2019-11-27

Applicant: Shimano Inc.

Inventor： Naoki FUJIMOTO ,  Tsuyoshi FUKUMORI

IPC: B62M9/1246 ,  B62M9/1248 ,  B62M9/1242

Abstract: A derailleur comprises a base member, a movable member, a linkage structure, a pulley assembly, and a rotational force control structure configured to control rotational force of the pulley assembly relative to the movable member. The pulley assembly is pivotally movable relative to the movable member about a pivot axis in first and second directions. The pulley assembly is configured to move in the first direction upon moving from a second pivotal position toward a first pivotal position. The rotational force control structure includes a cam member having a first cam surface, an abutment member configured to abut the first cam surface, and a biasing member configured to bias the abutment member. The abutment member is configured to abut the first cam surface by the biasing member to apply first additional force to the pulley assembly in the first direction while the pulley assembly is in the first pivotal position.

公开(公告)号：US20190101204A1

公开(公告)日：2019-04-04

申请号：US16131965

申请日：2018-09-14

Applicant: Shimano Inc.

Inventor： Yasufumi FUKUNAGA ,  Tsuyoshi FUKUMORI

IPC: F16H55/30 ,  B62M9/00

Abstract: A bicycle sprocket includes a base body, a first sprocket tooth and a shifting initiation tooth. The first sprocket tooth includes a drive surface including a drive surface side tooth tip end portion, a non-drive surface including a non-drive surface side tooth tip end portion and a tooth tip portion connecting the drive surface side tooth tip end portion and the non-drive surface side tooth tip end portion. The non-drive surface extends circumferentially with respect to the rotational center axis from the non-drive surface side tooth tip end portion toward a first surface. The tooth tip portion extends circumferentially in a first direction between the drive surface side tooth tip end portion and the non-drive surface side tooth tip end portion. The non-drive surface extends circumferentially from the non-drive surface side tooth tip end portion in a second direction that is inclined with respect to the first direction.

公开(公告)号：US20190101188A1

公开(公告)日：2019-04-04

申请号：US15719570

申请日：2017-09-29

Applicant: SHIMANO INC.

Inventor： Kenichi AKANISHI ,  Atsuhiro EMURA ,  Yuta MIZUTANI ,  Tsuyoshi FUKUMORI

IPC: F16G13/06 ,  B62M9/00

Abstract: A bicycle-chain outer link plate comprises a first outer-link end portion, a second outer-link end portion, and a first outer-link intermediate portion. The first outer-link end portion comprises a first outer-link opening and a first outer-link end outermost edge. The second outer-link end portion comprises a second outer-link opening and a second outer-link end outermost edge. The first outer-link intermediate portion comprises a first outer-link intermediate outermost edge and a first additional outer-link intermediate outermost edge. The first outer-link intermediate portion has a first distance defined in an axial direction on a first outer-link longitudinal axis. The first outer-link intermediate outermost edge has a second distance defined in the axial direction. The first outer-link end outermost edge has a third distance defined in the axial direction. The first distance is larger than the second distance and the third distance. The second distance is larger than the third distance.

公开(公告)号：US20170307049A1

公开(公告)日：2017-10-26

申请号：US15139270

申请日：2016-04-26

Applicant: SHIMANO INC.

Inventor： Tsuyoshi FUKUMORI ,  Toshinari OISHI

IPC: F16G13/06

CPC classification number: F16G13/06

Abstract: A bicycle chain comprises an inner link plate. The inner link plate comprises a first inner-link end portion, a second inner-link end portion, an inner-link intermediate portion, at least one first inner-link chamfered portion, and at least one second inner-link chamfered portion. The at least one first inner-link chamfered portion is provided at least on an inner-link outer peripheral edge in a first inner-link surface. The at least one second inner-link chamfered portion is provided at least on the inner-link outer peripheral edge in a second inner-link surface. The at least one first inner-link chamfered portion has a first non-overlapped portion with respect to the at least one second inner-link chamfered portion when viewed from an axial direction. The at least one second inner-link chamfered portion has a second non-overlapped portion with respect to the at least one first inner-link chamfered portion when viewed from the axial direction.

公开(公告)号：US20160272279A1

公开(公告)日：2016-09-22

申请号：US15168214

申请日：2016-05-30

Applicant: SHIMANO INC.

Inventor： Toyoshi YOSHIDA ,  Toshinari OISHI ,  Tsuyoshi FUKUMORI

IPC: B62M9/10 ,  F16H55/30

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.

Abstract translation: 自行车后链轮组件具有旋转中心轴线。 自行车后链轮组件包括第一链轮和第二链轮。 第一链轮包括第一链轮主体和第一链接结构。 第一链轮主体由非金属材料制成。 第一链接结构由金属材料制成，并被配置成与自行车链接。 第二链轮包括第二链轮主体和第二链接结构。 第二链轮主体由非金属材料制成并附接到第一链轮主体。 第二链条接合结构由金属材料制成并且被配置成与自行车链条接合。

公开(公告)号：US20150260258A1

公开(公告)日：2015-09-17

申请号：US14207504

申请日：2014-03-12

Applicant: SHIMANO INC.

Inventor： Toru KUBOTA ,  Fujihisa TATSUMI ,  Tsuyoshi FUKUMORI

IPC: F16G15/04

CPC classification number: F16G15/04 ,  F16G13/06

Abstract: A bicycle chain connecting link comprises a link pin and a link plate. The link pin has a center axis and comprises a main-body, a head portion, and an intermediate portion. The intermediate portion has an outer diameter smaller than an outer diameter of the main-body and than an outer diameter of the head portion to define a groove between the main-body and the head portion. The link plate comprises an elongated opening to which the link pin is removably attached. The elongated opening comprises an insertion opening and an attachment opening connected with the insertion opening. The guiding portion includes a sliding surface slidable with the head portion. The protrusion is provided between the insertion opening and the attachment opening and protrudes from the sliding surface to be slidable with an outer periphery of the head portion.

Abstract translation: 自行车链条连接件包括连杆销和链板。 连杆销具有中心轴线，并包括主体，头部和中间部分。 中间部分的外径小于主体的外径，而不是头部的外径，以限定主体和头部之间的凹槽。 连接板包括细长的开口，连接销可拆卸地连接在该细长的开口上。 细长开口包括插入开口和与插入开口连接的附接开口。 引导部分包括可与头部部分滑动的滑动表面。 所述突起部设置在所述插入口和所述安装开口之间，并且从所述滑动面突出而能够与所述头部的外周滑动。

公开(公告)号：US20150094181A1

公开(公告)日：2015-04-02

申请号：US14039051

申请日：2013-09-27

Applicant: Shimano Inc.

Inventor： Tsuyoshi FUKUMORI ,  Koji TOKUYAMA ,  Emi HATANAKA

IPC: F16G13/06 ,  B62M9/00

CPC classification number: F16G13/06 ,  B62M9/00 ,  B62M2009/005

Abstract: A bicycle chain comprises a first inner link plate. The first inner link plate comprises a first end portion, a second end portion, and a first intermediate portion. The first end portion includes a first opening, a first chamfered section, and a first chamfer-free section. The first chamfer-free section is provided in at least a first chamfer-free angular range when viewed from an axial direction parallel to a first center axis. The first chamfer-free angular range is defined from a first circumferential end of the first chamfered section to a first inner-link longitudinal centerline of the first inner link plate. The first chamfer-free angular range is equal to or greater than 30 degrees with respect to the first center axis.

Abstract translation: 自行车链条包括第一内链板。 第一内链板包括第一端部，第二端部和第一中间部。 第一端部包括第一开口，第一倒角部分和第一无倒角部分。 当从平行于第一中心轴线的轴向方向观察时，第一无倒角部分至少设置有第一无倒角角度范围。 第一无倒角角度范围由第一倒角部分的第一圆周端到第一内连杆板的第一内连杆纵向中心线限定。 第一无倒角角度范围相对于第一中心轴线等于或大于30度。