公开(公告)号：US11787506B2

公开(公告)日：2023-10-17

申请号：US17218058

申请日：2021-03-30

Applicant: SHIMANO INC.

Inventor： Takashi Furuya ,  Kazutaka Fukao

IPC: B62M9/136 ,  B62M9/1342

CPC classification number: B62M9/136 ,  B62M9/1342

Abstract: A derailleur comprises a base member, a chain guide, and a linkage structure. The linkage structure includes a first link pivotally coupled to the base member about a first link pivot axis. The chain guide includes a first chain guide pivotally coupled to the first link about a first guide pivot axis spaced apart from the first link pivot axis. The first chain guide includes a first guide body and a first guide protrusion. The first guide protrusion protrudes from the first guide body and is pivotally coupled to the first link about the first guide pivot axis. The first guide protrusion is spaced apart from the first link in an axial direction with respect to the first guide pivot axis to define an intermediate space between the first guide protrusion and the first link in the axial direction. The intermediate space is free of a spring.

公开(公告)号：US09517811B1

公开(公告)日：2016-12-13

申请号：US14745878

申请日：2015-06-22

Applicant: Shimano Inc.

Inventor： Shingo Shiraishi ,  Takashi Furuya ,  Etsuyoshi Watarai ,  Yoshiaki Ando

IPC: F16C35/07 ,  B62M3/00 ,  B62K19/34 ,  F16C35/077

CPC classification number: B62M3/003 ,  B62K19/34 ,  F16C19/06 ,  F16C19/54 ,  F16C35/077 ,  F16C2226/60 ,  F16C2326/26 ,  F16C2326/28

Abstract: A bicycle bottom bracket assembly having a rotational central axis includes a support member, a bearing unit and a radially inward force reducing structure. The support member includes a hanger mounting portion and a bearing mounting portion. The bearing mounting portion is configured to be at least partly positioned within a hanger part of a bicycle frame. The bearing unit includes an outer race, an inner race and at least one roller element disposed between the outer and inner races in a radial direction with respect to the rotational central axis. The outer race is fixed to the bearing mounting portion of the support member. The radially inward force reducing structure reduces a radially inward force being transmitted to the bearing unit.

Abstract translation: 具有旋转中心轴线的自行车底托架组件包括支撑构件，轴承单元和径向向内的减小力的结构。 支撑构件包括衣架安装部分和轴承安装部分。 轴承安装部被构造成至少部分地定位在自行车车架的吊架部分内。 轴承单元包括外座圈，内座圈和至少一个滚子元件，其相对于旋转中心轴线在径向方向上设置在外座圈和内座圈之间。 外圈固定在支承部件的轴承安装部上。 径向向内的力减小结构减小了径向向内的力传递到轴承单元。

公开(公告)号：US10000253B1

公开(公告)日：2018-06-19

申请号：US15361332

申请日：2016-11-25

Applicant: Shimano Inc.

Inventor： Toshio Tetsuka ,  Takashi Furuya ,  Shintaro Mori

IPC: B62M3/00 ,  F16B23/00 ,  B62M1/36 ,  B62M25/08

Abstract: A crank arm fixing ring is basically provided with a cylindrical mounting portion and a contact portion. The cylindrical mounting portion includes an external thread configured to screw into a crankshaft. The contact portion extends radially outwardly from the cylindrical mounting portion. The contact portion is configured to contact a crank arm upon attachment of the crank arm with the crank arm fixing ring. The contact portion includes at least one cutout extending radially outwardly from the cylindrical mounting portion. The at least one cutout is configured to receive a transmission line extending through the cylindrical mounting portion.

公开(公告)号：US10336401B2

公开(公告)日：2019-07-02

申请号：US15385880

申请日：2016-12-21

Applicant: Shimano Inc.

Inventor： Takashi Furuya ,  Masahiro Yamanaka ,  Atsuhiro Emura

IPC: B62M3/00 ,  B62M1/36 ,  F16D1/068 ,  F16D1/08 ,  B62M9/00

Abstract: A bicycle crank assembly includes a fixing member for fixing a sprocket to a crank arm. The fixing member includes a radially-extending projection, to prevent the sprocket from moving relative to the crank axle in an axial direction, and an axially-extending base portion, which is secured to the crank arm. A contact part is provided on an inner periphery of the base portion and contacts the crank axle or is provided on the crank axle and contacts the base portion. The contact part permits force to be transmitted between the crank axle and the fixing member to limit flexing of the crank axle assembly.

公开(公告)号：US10155564B2

公开(公告)日：2018-12-18

申请号：US15343561

申请日：2016-11-04

Applicant: Shimano Inc.

Inventor： Shingo Shiraishi ,  Takashi Furuya ,  Etsuyoshi Watarai ,  Yoshiaki Ando

IPC: B62M3/00 ,  F16C35/077 ,  B62K19/34 ,  F16C19/06 ,  F16C19/54

Abstract: A bicycle bottom bracket assembly having a rotational central axis includes a support member, a bearing unit and a radially inward force reducing structure. The support member includes a hanger mounting portion and a bearing mounting portion. The bearing mounting portion is configured to be at least partly positioned within a hanger part of a bicycle frame. The bearing unit includes an outer race, an inner race and at least one roller element disposed between the outer and inner races in a radial direction with respect to the rotational central axis. The outer race is fixed to the bearing mounting portion of the support member. The radially inward force reducing structure reduces a radially inward force being transmitted to the bearing unit.