公开(公告)号：US20210171155A1

公开(公告)日：2021-06-10

申请号：US16709876

申请日：2019-12-10

Applicant: SHIMANO INC.

Inventor： Tsuyoshi FUKUMORI ,  Tomonari OKA

IPC: B62M9/10

Abstract: A bicycle rear sprocket assembly comprises a first sprocket and a second sprocket. The first sprocket includes a first torque-transmitting profile disposed around a first sprocket opening. The second sprocket includes a second torque-transmitting profile disposed around a second sprocket opening. The first torque-transmitting profile is configured to engage with the second torque-transmitting profile in the mounted state. The first sprocket includes an axial abutment surface configured to axially abut against the second sprocket for axially positioning the first sprocket and the second sprocket relative to each other in the mounted state. The axial abutment surface is disposed farther from an axial center plane of the bicycle rear hub assembly than the first torque-transmitting profile in the mounted state.

公开(公告)号：US20210155318A1

公开(公告)日：2021-05-27

申请号：US16698876

申请日：2019-11-27

Applicant: Shimano Inc.

Inventor： Fumiaki YOSHIDA ,  Tsuyoshi FUKUMORI

IPC: B62M9/1248 ,  B62M9/125

Abstract: A derailleur comprises a base member configured to be attached to a human-powered vehicle frame, a movable member movable relative to the base member, a pulley assembly configured to be pivotally attached to the movable member with respect to a pivot axis, and a biasing member configured to apply biasing force to the pulley assembly. The biasing member includes a first biasing member and a second biasing member.

公开(公告)号：US20190309826A1

公开(公告)日：2019-10-10

申请号：US15946733

申请日：2018-04-06

Applicant: SHIMANO INC.

Inventor： Tsuyoshi FUKUMORI

IPC: F16G13/06 ,  F16G15/04

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, a first chromized layer, and a second chromized layer. The first inner-link end portion includes a first inner-link opening and a first axially extending surface. The second inner-link end portion includes a second inner-link opening and a second axially extending surface. The first chromized layer has a first maximum axially chromized-treatment length defined in the first axially extending surface in an axial direction. The second chromized layer has a second maximum axially chromized-treatment length defined in the second axially extending surface in the axial direction. Each of the first maximum axially chromized-treatment length and the second maximum axially chromized-treatment length is equal to or larger than 1.1 mm.

公开(公告)号：US20190084647A1

公开(公告)日：2019-03-21

申请号：US15705432

申请日：2017-09-15

Applicant: SHIMANO INC.

Inventor： Yasufumi FUKUNAGA ,  Hiroshi FUJITA ,  Tsuyoshi FUKUMORI ,  Atsuhiro EMURA

IPC: B62M9/12 ,  F16H55/30

CPC classification number: B62M9/12 ,  F16H55/30

Abstract: A bicycle sprocket comprises a sprocket body, a plurality of sprocket teeth, an axially outward protuberance, and an axially inward protuberance. The axially outward protuberance is disposed on an outward facing side of the sprocket body to overlap at least partly with a bicycle chain engaging with a neighboring bicycle sprocket when viewed along a rotational center axis. The axially inward protuberance is disposed on an inward facing side of the sprocket body to overlap at least partly with the axially outward protuberance when viewed along the rotational center axis.

公开(公告)号：US20190048973A1

公开(公告)日：2019-02-14

申请号：US15672232

申请日：2017-08-08

Applicant: SHIMANO INC.

Inventor： Tsuyoshi FUKUMORI ,  Atsuhiro EMURA

IPC: F16G13/02 ,  B62M9/06 ,  F16H55/30

CPC classification number: F16G13/02 ,  B62M1/00 ,  B62M9/00 ,  B62M9/06 ,  B62M2009/005 ,  F16G13/06 ,  F16G13/18 ,  F16H55/30

Abstract: A bicycle chain comprises a first outer link plate. The first outer link plate comprises a first outer-link end portion, a second outer-link end portion, a first outer-link intermediate portion, and a first outer-link longitudinal centerline. The first outer-link end portion, the second outer-link end portion and the first outer-link intermediate portion define a first outer-link outer peripheral edge. The first outer-link outer peripheral edge comprises a first outer-link end edge, a second outer-link end edge, and a pair of first outer-link intermediate edges. A first radial distance is defined from a first outer-link center axis to the first outer-link end edge in a perpendicular direction. A minimum distance is defined between the pair of first outer-link intermediate edges in the perpendicular direction. The minimum distance is smaller than 200% of the first radial distance and is equal to or larger than 5 mm.

公开(公告)号：US20180304965A1

公开(公告)日：2018-10-25

申请号：US15493089

申请日：2017-04-20

Applicant: SHIMANO INC.

Inventor： Tsuyoshi FUKUMORI

IPC: B62M9/10 ,  F16H55/30

Abstract: A bicycle sprocket comprises a sprocket body and a plurality of sprocket teeth provided on an outer periphery of the sprocket body and including at least one first tooth and at least one second tooth. The at least one first tooth has a driving surface side and a non-driving surface side. The at least one first tooth has a bevel cut shape in the non-driving surface side. The bevel cut shape is configured to avoid initially engaging with a bicycle chain in a shifting operation where the bicycle chain shifts from an adjacent smaller bicycle sprocket to the bicycle sprocket. The at least one second tooth is configured to initially engage with the bicycle chain in the shifting operation. The at least one second tooth is disposed adjacent to the at least one first tooth in a circumferential direction with respect to a rotational center axis of the bicycle sprocket.

公开(公告)号：US20160229486A1

公开(公告)日：2016-08-11

申请号：US14615364

申请日：2015-02-05

Applicant: SHIMANO INC.

Inventor： Toyoshi YOSHIDA ,  Toshinari OISHI ,  Tsuyoshi FUKUMORI

IPC: B62M9/10 ,  F16H55/06 ,  F16H55/30

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。

公开(公告)号：US20160207590A1

公开(公告)日：2016-07-21

申请号：US14597516

申请日：2015-01-15

Applicant: Shimano Inc.

Inventor： Tsuyoshi FUKUMORI

IPC: B62M9/10 ,  F16H55/30

CPC classification number: B62M9/10 ,  F16H55/30

Abstract: A bicycle sprocket includes a sprocket body and a chain engagement structure. The sprocket body has a center rotational axis, a first side surface and a second side surface. The first and second side surfaces face oppositely with respect to an axial direction of the bicycle sprocket. The first side surface is a smaller sprocket facing side of the bicycle sprocket. The chain engagement structure includes a plurality of sprocket teeth extending radially outward from an outer periphery of the sprocket body. The sprocket teeth include at least one shift assist tooth having a recessed portion recessed from the first side surface toward the second side surface. A protuberance is formed in the recessed portion.

Abstract translation: 自行车链轮包括链轮主体和链接结构。 链轮体具有中心旋转轴线，第一侧面和第二侧面。 第一和第二侧表面相对于自行车链轮的轴向相反地面对。 第一侧面是自行车链轮的面向较小的链轮侧的侧面。 链条接合结构包括从链轮主体的外周径向向外延伸的多个链轮齿。 链轮齿包括至少一个换档辅助齿，其具有从第一侧表面朝向第二侧表面凹陷的凹陷部分。 在凹部形成突起。

公开(公告)号：US20150285358A1

公开(公告)日：2015-10-08

申请号：US14243213

申请日：2014-04-02

Applicant: Shimano Inc.

Inventor： Shingo NUMATA ,  Tsuyoshi FUKUMORI

IPC: F16H55/08 ,  B62M9/10

CPC classification number: F16H55/0873 ,  B62M9/10 ,  F16H55/08

Abstract: A bicycle rear sprocket is basically provided with a sprocket body and a chain engagement structure. The sprocket body has a center rotational axis, a first side surface and a second side surface. The first and second side surfaces face oppositely with respect to an axial direction of the bicycle rear sprocket. The first side surface is a smaller sprocket facing side of the sprocket body. The chain engagement structure includes a plurality of sprocket teeth extending radially outward from an outer periphery of the sprocket body. The sprocket teeth include a first shift tooth and a second shift tooth. The second shift tooth is positioned at a third tooth position in a downstream direction of a rotational driving direction of the bicycle rear sprocket with respect to the first shift tooth. The first shift tooth and the second shift tooth function as a shift tooth when a bicycle chain moves from a smaller bicycle rear sprocket to the bicycle rear sprocket.

Abstract translation: 自行车后链轮基本上设置有链轮主体和链接结构。 链轮体具有中心旋转轴线，第一侧面和第二侧面。 第一和第二侧表面相对于自行车后链轮的轴向相反地面对。 第一侧面是链轮主体的面向较小的链轮侧的较小的链轮。 链条接合结构包括从链轮主体的外周径向向外延伸的多个链轮齿。 链轮齿包括第一变速齿和第二变速齿。 第二变速齿相对于第一变速齿位于自行车后链轮的旋转驱动方向的下游方向的第三齿位置。 当自行车链条从较小的自行车后链轮移动到自行车后链轮时，第一换档齿和第二换档齿功能作为换档齿。

公开(公告)号：US20150094182A1

公开(公告)日：2015-04-02

申请号：US14245035

申请日：2014-04-04

Applicant: SHIMANO (SINGAPORE) PTE. LTD. ,  SHIMANO INC.

Inventor： Tsuyoshi FUKUMORI ,  Takashi ADACHI ,  Puat Thiam LIM

IPC: F16G13/06

CPC classification number: F16G13/06

Abstract: A bicycle chain comprises a first outer link plate. The first outer link plate comprises a first end portion, a second end portion, and a first intermediate portion. The first end portion, the second end portion and the first intermediate portion defines a first outer peripheral edge. The first outer peripheral edge comprises a first end edge, a second end edge, a pair of first intermediate edges, and a first recessed edge. The first end edge extends about the first end portion. The second end edge extends about the second end portion. The pair of first intermediate edges extends along the first intermediate portion between the first end edge and the second end edge. The first recessed edge is provided between the first end edge and one of the first intermediate edges.

Abstract translation: 自行车链条包括第一外链板。 第一外链板包括第一端部，第二端部和第一中间部。 第一端部，第二端部和第一中间部分限定第一外周边缘。 第一外围边缘包括第一端边缘，第二端边缘，一对第一中间边缘和第一凹入边缘。 第一端边缘围绕第一端部部分延伸。 第二端边缘围绕第二端部部分延伸。 所述一对第一中间边缘沿着第一中间部分在第一端边缘和第二端边缘之间延伸。 第一凹入边缘设置在第一端边缘和第一中间边缘中的一个之间。