Disc brake device for railway vehicle

US2024191762A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2024191762-A1
Application numberUS-202118553755-A
CountryUS
Kind codeA1
Filing dateMay 14, 2021
Priority dateMay 14, 2021
Publication dateJun 13, 2024
Grant date

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A disc brake device includes a rotary member, a brake disc, and a control member. The brake disc includes a disc body having an annular shape and fins. The control member controls an airflow rate between the fins disposed adjacent to each other in a circumferential direction of the brake disc. The control member includes a base plate and a protruding portion. The protruding portion protrudes from the base plate toward the disc body. A top surface of each fin has a recessed portion. The protruding portion extends in the circumferential direction through from the recessed portion of one of the fins disposed adjacent to each other to the recessed portion of the other of the fins.

First claim

Opening claim text (preview).

1 . A disc brake device for a railway vehicle, the disc brake device comprising: a rotary member to be attached to an axle of the railway vehicle; a brake disc including a disc body having an annular shape and a plurality of fins, the disc body having a rear surface that faces the rotary member, the plurality of fins being disposed on the rear surface in a radial shape; and a control member configured to control an airflow rate between, of the plurality of fins, fins disposed adjacent to each other in a circumferential direction of the brake disc, the control member including a base plate sandwiched between the rotary member and the plurality of fins and a protruding portion protruding from the base plate toward the disc body, wherein a top surface of each of the fins disposed adjacent to each other has a recessed portion that crosses the fin in the circumferential direction, and the protruding portion extends in the circumferential direction through from the recessed portion of one of the fins disposed adjacent to each other to the recessed portion of the other of the fins. 2 . The disc brake device according to claim 1 , wherein the protruding portion is positioned on an inner side in a radial direction of the brake disc. 3 . The disc brake device according to claim 1 , wherein the protruding portion is positioned on an outer side in a radial direction of the brake disc.

Assignees

Inventors

Classifications

  • adapted for mounting on the wheel of a railway vehicle · CPC title

  • Noise or vibration control · CPC title

  • the element being a brake disc · CPC title

  • with open cooling system, e.g. cooled by air · CPC title

  • F16D65/128Primary

    characterised by means for cooling · CPC title

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External sources

Frequently asked questions

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What does patent US2024191762A1 cover?
A disc brake device includes a rotary member, a brake disc, and a control member. The brake disc includes a disc body having an annular shape and fins. The control member controls an airflow rate between the fins disposed adjacent to each other in a circumferential direction of the brake disc. The control member includes a base plate and a protruding portion. The protruding portion protrudes fr…
Who is the assignee on this patent?
Nippon Steel Corp
What technology area does this patent fall under?
Primary CPC classification F16D65/128. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Thu Jun 13 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).