公开(公告)号：US20220213939A1

公开(公告)日：2022-07-07

申请号：US17141567

申请日：2021-01-05

Applicant: Shimano Inc.

Inventor： Tomonari Oka

IPC: F16D41/32 ,  B60B27/04 ,  B60B27/02

Abstract: A planar ratchet assembly is provided for a human-powered vehicle, and includes a first ratchet member and a second ratchet member. The first ratchet member includes an axial surface defining a plurality of first serrated teeth having a first driving surface and a first non-driving surface. At least one of the first non-driving surfaces includes a convex curved surface that has a radius of curvature of at least 0.5 mm. The second ratchet member includes an axial surface defining a plurality of second serrated teeth having a second driving surface and a second non-driving surface. The first ratchet member and the second ratchet member rotate together in a driving direction. At least one of the first ratchet member and the second ratchet member moves in an axial direction to permit relative rotation between the first ratchet member and the second ratchet member in a non-driving direction.

公开(公告)号：US12285972B2

公开(公告)日：2025-04-29

申请号：US17665598

申请日：2022-02-07

Applicant: SHIMANO INC.

Inventor： Tomonari Oka

IPC: B60B27/04 ,  B60B27/02 ,  B62M9/12

Abstract: A sprocket support body is rotatably mounted on a hub axle of a bicycle rear hub assembly. The sprocket support body comprises 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. The at least ten external spline teeth has an external-spline major diameter equal to or smaller than 34 mm. The sprocket support body is free of external spline teeth having another external-spline major diameter that is different from the external-spline major diameter.

公开(公告)号：US11465710B2

公开(公告)日：2022-10-11

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：US12049932B2

公开(公告)日：2024-07-30

申请号：US17141567

申请日：2021-01-05

Applicant: Shimano Inc.

Inventor： Tomonari Oka

IPC: F16D41/32 ,  B60B27/00 ,  B60B27/02 ,  B60B27/04

CPC classification number: F16D41/32 ,  B60B27/023 ,  B60B27/047 ,  B60B27/0005 ,  B60B2200/47 ,  B60B2360/104 ,  B60B2900/1212 ,  B60B2900/133 ,  B60B2900/212 ,  B60B2900/321

Abstract: A planar ratchet assembly is provided for a human-powered vehicle, and includes a first ratchet member and a second ratchet member. The first ratchet member includes an axial surface defining a plurality of first serrated teeth having a first driving surface and a first non-driving surface. At least one of the first non-driving surfaces includes a convex curved surface that has a radius of curvature of at least 0.5 mm. The second ratchet member includes an axial surface defining a plurality of second serrated teeth having a second driving surface and a second non-driving surface. The first ratchet member and the second ratchet member rotate together in a driving direction. At least one of the first ratchet member and the second ratchet member moves in an axial direction to permit relative rotation between the first ratchet member and the second ratchet member in a non-driving direction.

公开(公告)号：US10766301B2

公开(公告)日：2020-09-08

申请号：US15842154

申请日：2017-12-14

Applicant: SHIMANO INC.

Inventor： Tomonari Oka ,  Yuuya Yoneda

IPC: B60B27/02 ,  B60B35/00 ,  B62K25/02

Abstract: A rear wheel fixing mechanism for a bicycle is provided that includes an axle, a rear hub body, and a first clamp. The rear hub body is rotatably mounted around the axle about a rotational center axis. The first clamp is configured to exert a first clamping force in a perpendicular direction with respect to the rotational center axis onto a first clamping portion of the axle to mount the axle on a frame of the bicycle.

公开(公告)号：US11642913B2

公开(公告)日：2023-05-09

申请号：US16673981

申请日：2019-11-05

Applicant: SHIMANO INC.

Inventor： Tomonari Oka

IPC: B60B27/00 ,  F16D3/06 ,  B60B27/02 ,  B62M9/10 ,  F16H55/30

CPC classification number: B60B27/0026 ,  B60B27/023 ,  F16D3/06 ,  B62M9/10 ,  F16H55/30

Abstract: A sprocket support body comprises an external spline configured to be engaged with an internal spline of a bicycle sprocket arrangement. The external spline includes a plurality of external-spline driving surfaces configured to transmit a rotational driving force between the sprocket support body and the bicycle sprocket arrangement in a circumferential direction. The plurality of external-spline driving surfaces includes at least four first external-spline driving surfaces and at least one second external-spline driving surface. The at least four first external-spline driving surfaces are respectively arranged on at least four of nine first external-spline driving positions equally arranged in the circumferential direction about a rotational center axis at a first external-spline pitch angle which is equal to 40 degrees. The at least one second external-spline driving surface is offset from the nine first external-spline driving positions in the circumferential direction about the rotational center axis.

公开(公告)号：US11578761B2

公开(公告)日：2023-02-14

申请号：US16673980

申请日：2019-11-05

Applicant: SHIMANO INC.

Inventor： Tomonari Oka

IPC: F16D3/06 ,  B60B27/04 ,  B62M9/10

Abstract: A bicycle sprocket arrangement comprises an internal spline configured to be engaged with an external spline of a sprocket support body of a bicycle hub assembly. The internal spline includes a plurality of internal-spline driving surfaces configured to transmit a rotational driving force between the bicycle sprocket arrangement and the bicycle hub assembly in a circumferential direction. The plurality of internal-spline driving surfaces includes at least four first internal-spline driving surfaces and at least one second internal-spline driving surface. The at least four first internal-spline driving surfaces are respectively arranged on at least four of nine first internal-spline driving positions equally arranged in the circumferential direction about a rotational center axis at a first internal-spline pitch angle which is equal to 40 degrees. The at least one second internal-spline driving surface is offset from the nine first internal-spline driving positions in the circumferential direction about the rotational center axis.

公开(公告)号：US11279442B2

公开(公告)日：2022-03-22

申请号：US16008031

申请日：2018-06-14

Applicant: SHIMANO INC.

Inventor： Tomonari Oka

IPC: B62M9/12 ,  B60B27/02 ,  B60B27/04 ,  B60B27/00

Abstract: A sprocket support body is rotatably mounted on a hub axle of a bicycle rear hub assembly. The sprocket support body comprises 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：US11919333B2

公开(公告)日：2024-03-05

申请号：US17188442

申请日：2021-03-01

Applicant: Shimano Inc.

Inventor： Tomonari Oka

IPC: B60B27/02 ,  B60B1/04 ,  B60B27/00

CPC classification number: B60B27/023 ,  B60B1/041 ,  B60B1/042 ,  B60B27/0005 ,  B60B27/0031

Abstract: A hub is provided for a human-powered vehicle, and includes a hub axle, a rotating body, a bearing, an inner retainer and an outer retainer. The rotating body is rotatably mounted on the hub axle. The bearing rotatably coupling the rotating body to the hub axle. The bearing includes an inner race, an outer race and a plurality of roller elements. The inner race has an axially facing portion abutting an inner abutment of the hub axle. The outer race has an axially facing portion abutting an outer abutment of the rotating body. The roller elements are disposed between the inner race and the outer race. The inner retainer is coupled to the hub axle and abuts an axially facing portion of the inner race. The outer retainer is coupled to the rotating body and abuts an axially facing portion of the outer race.

公开(公告)号：US11571929B2

公开(公告)日：2023-02-07

申请号：US16903881

申请日：2020-06-17

Applicant: Shimano Inc.

Inventor： Tomonari Oka

IPC: B60B27/02 ,  B60B1/04

Abstract: A wheel hub has a tubular body having a rotational axis and at least one spoke attachment part protruding radially outward from the tubular body. The spoke attachment part includes a cavity, a first spoke attachment hole, a first spoke head contact surface, a second spoke attachment hole, and a second spoke head contact surface. The cavity includes a spoke insertion opening that opens from the spoke attachment part in an axially outward direction parallel to the rotational axis. The first spoke attachment hole extends from the cavity in a first direction. The first spoke head contact surface is located adjacent the first spoke attachment hole. The second spoke attachment hole extends from the cavity in a second direction. The second spoke head contact surface is located adjacent the second spoke attachment hole.