FLOATING-TYPE BRAKE DISC, AND WHEEL FOR STRADDLE-TYPE VEHICLE

Title:

FLOATING-TYPE BRAKE DISC, AND WHEEL FOR STRADDLE-TYPE VEHICLE

Document Type and Number:

WIPO Patent Application WO/2023/084934

Kind Code:

A1

Abstract:

Provided is a floating-type brake disc that is equipped with an annular rotor and a hub disposed concentrically with a prescribed gap with respect to the inner side of the rotor, and that enables reduction in hub weight while achieving a strength adequate to withstand shearing force during braking.　A rotor 1 and a hub 2 are joined at a plurality of joints 4 that are disposed at an equal interval in the circumferential direction. An annular attaching portion 22 to be fastened to a wheel We is provided at the center of the hub 2. The hub 2 has spoke portions 23 each comprising two curved beams 231, 231 which extend and branch out such that a circumferential gap therebetween gradually increases from the corresponding joint 4 toward the attaching portion 22 and which are curved at a prescribed curvature R in the circumferential direction. The spoke portions 23 are arranged at an equal interval in the circumferential direction.

More Like This:

JPS60121329	MECHANICAL DISK BRAKE
JPS589825	[Title of the device] Joint structure of braky stopper arms, such as a motorcycle, and a brake panel

Inventors:

WATANABE YUMIKO (JP)
TOMISAWA NAOKI (JP)

Application Number:

PCT/JP2022/035659

Publication Date:

May 19, 2023

Filing Date:

September 26, 2022

Export Citation:

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Assignee:

YUTAKA GIKEN CO LTD (JP)

International Classes:

B62L1/00; F16D65/12

Foreign References:

JP2018144796A	2018-09-20
JP2015169264A	2015-09-28
US20130092485A1	2013-04-18

Attorney, Agent or Firm:

SEIGA IP CORPORATION (JP)

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