公开(公告)号：US20210094654A1

公开(公告)日：2021-04-01

申请号：US17118609

申请日：2020-12-11

Applicant: SHIMANO INC.

Inventor： Hiroshi FUJITA

IPC: B62M9/10 ,  B60B27/02 ,  F16H55/30 ,  B60B27/00 ,  B60B27/04

Abstract: A bicycle rear sprocket assembly comprises a plurality of bicycle sprockets comprising a first sprocket and a second sprocket. The first sprocket includes a first opening having a first minimum diameter that is smaller than a minimum outer diameter of a sprocket support body of a bicycle rear hub assembly. The second sprocket includes a second opening and at least ten internal spline teeth. The second opening has a second minimum diameter that is equal to or larger than the minimum outer diameter. The at least ten internal spline teeth are configured to engage with the sprocket support body of the bicycle rear hub assembly. The at least ten internal spline teeth include a plurality of internal-spline driving surfaces each including a radial length. A total of the radial lengths of the plurality of internal-spline driving surfaces is equal to or larger than 7 mm.

公开(公告)号：US20210086868A1

公开(公告)日：2021-03-25

申请号：US17109151

申请日：2020-12-02

Applicant: SHIMANO INC.

Inventor： Atsuhiro EMURA ,  Hiroshi FUJITA ,  Fumiaki YOSHIDA

IPC: B62M9/10 ,  F16H55/12 ,  F16H55/06 ,  F16H55/30

Abstract: A bicycle rear sprocket assembly comprises a plurality of sprockets and a sprocket carrier. The sprocket carrier includes at least ten internal spline teeth and a circumferentially extending non-splined portion. The at least ten internal spline teeth extend in an axial direction with respect to a rotational center axis of the bicycle rear sprocket assembly. The at least ten internal spline teeth includes a plurality of internal-spline driving surfaces. The plurality of internal-spline driving surfaces each includes a radially outermost edge, a radially innermost edge, and a radial length. The total of the radial lengths ranges from 11 mm to 14 mm. The circumferentially extending non-splined portion is disposed to be adjacent to the at least ten internal spline teeth in the axial direction and recessed from the at least ten internal spline teeth in a radial direction with respect to the rotational center axis.

公开(公告)号：US20190225301A1

公开(公告)日：2019-07-25

申请号：US15964078

申请日：2018-04-27

Applicant: SHIMANO INC.

Inventor： Atsuhiro EMURA ,  Hiroshi FUJITA ,  Fumiaki YOSHIDA

IPC: B62M9/10 ,  F16H55/30 ,  F16H55/06 ,  F16H55/12

Abstract: A bicycle rear sprocket assembly comprises a plurality of sprockets and a sprocket carrier configured to support at least one of the plurality of sprockets. The sprocket carrier includes at least ten internal spline teeth and a circumferentially extending non-splined portion. The at least ten internal spline teeth are configured to engage with the sprocket support body of the bicycle rear hub assembly. The at least ten internal spline teeth extend in an axial direction with respect to a rotational center axis of the bicycle rear sprocket assembly and are spaced apart from each other in a circumferential direction with respect to the rotational center axis. The circumferentially extending non-splined portion is disposed to be adjacent to the at least ten internal spline teeth in the axial direction and recessed from the at least ten internal spline teeth in a radial direction with respect to the rotational center axis.

公开(公告)号：US20190092425A1

公开(公告)日：2019-03-28

申请号：US15851781

申请日：2017-12-22

Applicant: SHIMANO INC.

Inventor： Hiroshi FUJITA

IPC: B62M9/10 ,  F16H55/30 ,  B60B27/02

Abstract: A bicycle rear sprocket assembly is configured to be mounted to a sprocket support body of a bicycle rear hub assembly. The bicycle rear sprocket assembly comprises a plurality of bicycle sprockets. The plurality of bicycle sprockets comprises a first sprocket and a second sprocket. The first sprocket includes a first opening having a first minimum diameter that is smaller than a minimum outer diameter of the sprocket support body of the bicycle rear hub assembly. The second sprocket includes a second opening and at least ten internal spline teeth. The second opening has a second minimum diameter that is equal to or larger than the minimum outer diameter of the sprocket support body of the bicycle rear hub assembly. The at least ten internal spline teeth are configured to engage with the sprocket support body of the bicycle rear hub assembly.

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：US20190061874A1

公开(公告)日：2019-02-28

申请号：US15686117

申请日：2017-08-24

Applicant: SHIMANO INC.

Inventor： Hiroshi FUJITA ,  Atsuhiro EMURA

IPC: B62M9/10 ,  F16H55/30

CPC classification number: B62M9/10 ,  B60B27/023 ,  B60B27/04 ,  B60B27/047 ,  F16H55/30

Abstract: A bicycle rear sprocket assembly comprises a first sprocket, a second sprocket, and a sprocket support. The first sprocket includes a first sprocket body and a plurality of first sprocket teeth. The first sprocket body has at least one first recess. The second sprocket includes a second sprocket body and a plurality of second sprocket teeth. The sprocket support is configured to engage with a bicycle hub assembly. The sprocket support includes a sprocket attachment part. The first sprocket and the second sprocket are attached to the sprocket attachment part. The sprocket attachment part is at least partly provided in the at least one first recess to transmit a rotational force between the first sprocket and the sprocket support.

公开(公告)号：US20190047324A1

公开(公告)日：2019-02-14

申请号：US15673346

申请日：2017-08-09

Applicant: SHIMANO INC.

Inventor： Hiroshi FUJITA ,  Kazuki KOSHIYAMA ,  Takashi NAKANISHI

IPC: B60B27/04 ,  B60B27/00 ,  B60B1/04 ,  B62M9/10

CPC classification number: B60B27/04 ,  B60B1/042 ,  B60B27/0021 ,  B60B27/0026 ,  B60B27/047 ,  B62L5/00 ,  B62M9/10 ,  B62M9/105

Abstract: A bicycle hub assembly comprises a hub axle, a hub body, and a sprocket support body. The hub body includes a first spoke-mounting portion, a second spoke-mounting portion, and a first axial length. The first axial length is defined between a first axially outermost part of the first spoke-mounting portion and a second axially outermost part of the second spoke-mounting portion in an axial direction with respect to a rotational center axis. The first axial length is equal to or larger than 55 mm. The sprocket support body is rotatably mounted on the hub axle about the rotational center axis. The sprocket support body includes at least ten external spline teeth configured to engage with a bicycle rear sprocket assembly. Each of the at least ten external spline teeth has an external-spline driving surface and an external-spline non-driving surface.

公开(公告)号：US20170232791A1

公开(公告)日：2017-08-17

申请号：US15583927

申请日：2017-05-01

Applicant: SHIMANO INC.

Inventor： Hiroshi FUJITA ,  Naohiro NISHIMOTO ,  Kazuki KOSHIYAMA

IPC: B60B27/04 ,  B60B27/00 ,  F16D41/36 ,  B60B27/02

CPC classification number: B60B27/047 ,  B60B27/0026 ,  B60B27/0031 ,  B60B27/023 ,  B60B2360/32 ,  B60B2900/133 ,  B60B2900/325 ,  B62M9/121 ,  F16D1/06 ,  F16D1/10 ,  F16D41/36 ,  F16D2001/103

Abstract: A bicycle hub assembly comprises a hub axle, a hub shell, a sprocket support body, a first ratchet member, a second ratchet member, and a sliding member. The hub shell includes at least one first tooth. The sprocket support body includes a first helical spline. The first ratchet member comprises at least one first ratchet tooth and a second helical spline engaged with the first helical spline. The second ratchet member comprises at least one second ratchet tooth and at least one second tooth. The at least one second ratchet tooth is engageable with the at least one first ratchet tooth. The at least one second tooth is engaged with the at least one first tooth. The sliding member is provided between the sprocket support body and the second ratchet member in an axial direction parallel to a rotational axis. The sliding member includes a non-metallic material.

公开(公告)号：US20170096029A1

公开(公告)日：2017-04-06

申请号：US14873141

申请日：2015-10-01

Applicant: SHIMANO INC.

Inventor： Hiroshi FUJITA ,  Naohiro NISHIMOTO ,  Kazuki KOSHIYAMA

IPC: B60B27/02 ,  B60B27/04 ,  B60B27/00 ,  F16D1/06 ,  F16D1/10

CPC classification number: B60B27/047 ,  B60B27/0026 ,  B60B27/0031 ,  B60B27/023 ,  B60B2360/32 ,  B60B2900/133 ,  B60B2900/325 ,  B62M9/121 ,  F16D1/06 ,  F16D1/10 ,  F16D41/36 ,  F16D2001/103

Abstract: A bicycle hub assembly comprises a hub axle, a hub shell, a sprocket support body, a first ratchet member, a second ratchet member, and a spacer. The hub shell includes at least one first tooth. The sprocket support body includes a first helical spline. The first ratchet member comprises at least one first ratchet tooth and a second helical spline engaged with the first helical spline. The second ratchet member comprises at least one second ratchet tooth and at least one second tooth. The at least one second tooth is engaged with the at least one first tooth. The spacer is at least partly provided between the at least one first tooth and the at least one second tooth in a circumferential direction defined about a rotational axis. The spacer includes a non-metallic material.

公开(公告)号：US20250091693A1

公开(公告)日：2025-03-20

申请号：US18961470

申请日：2024-11-27

Applicant: SHIMANO INC.

Inventor： Hiroshi FUJITA ,  Yusuke ODA ,  Hiroaki UEMURA

IPC: B62M9/10

Abstract: A rear sprocket includes a sprocket body and a plurality of sprocket teeth. The plurality of sprocket teeth includes a first upshifting facilitation tooth, a second upshifting facilitation tooth, a third upshifting facilitation tooth and an upshifting initiation tooth. The upshifting initiation tooth is adjacent to the third upshifting facilitation tooth at an upstream side of the third upshifting facilitation tooth with respect to a driving rotational direction of the rear sprocket without another tooth between the third upshifting facilitation tooth and the upshifting initiation tooth in a circumferential direction.