Shock absorber

US2017261060A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2017261060-A1
Application numberUS-201515509518-A
CountryUS
Kind codeA1
Filing dateSep 4, 2015
Priority dateSep 16, 2014
Publication dateSep 14, 2017
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

In a shock absorber, an outer case made of resin is disposed so as to cover an inner case made of metal, and the outer case forms a reservoir chamber for storing the hydraulic fluid between the outer case and the inner case. The outer case is supported by the inner case via protrusions, which are formed on either one of the outer peripheral surface of the inner case and the inner peripheral surface of the outer case so as to protrude toward and abut the other one of the outer peripheral surface of the inner case and the inner peripheral surface of the outer case.

First claim

Opening claim text (preview).

1 . A shock absorber comprising: an inner case made of metal filled with hydraulic fluid; an outer case made of resin disposed so as to cover the inner case, the outer case forming a reservoir chamber for storing the hydraulic fluid between the outer case and the inner case; and protrusions formed on either one of the outer peripheral surface of the inner case and the inner peripheral surface of the outer case so as to protrude toward and abut the other one of the outer peripheral surface of the inner case and the inner peripheral surface of the outer case, wherein an air chamber filled with gas is formed within the reservoir chamber, wherein the outer case has a bottomed cylindrical shape in which one end is closed by a closing part, wherein the reservoir chamber comprises: an installation region in which the protrusions are provided; and a non-installation region in which the protrusions are not provided and which is adjacent in the axial direction to the installation region; wherein the installation region is provided on the closing part side, and wherein the non-installation region is provided on the air chamber side. 2 . (canceled) 3 . (canceled) 4 . (canceled) 5 . The shock absorber according to claim 1 , wherein the protrusions are provided intermittently in the axial direction in the installation region. 6 . (canceled) 7 . (canceled) 8 . The shock absorber according to claim 1 , wherein the protrusions are members made of resin that are formed integrally with the outer case. 9 . The shock absorber according to claim 1 , wherein a plurality of the protrusions are provided spaced apart by intervals in the circumferential direction. 10 . The shock absorber according to claim 1 , wherein a ratio of the installation region and the non-installation region is from 1:1 to 3:1.

Assignees

Inventors

Classifications

  • F16F9/3257Primary

    in twin-tube type devices · CPC title

  • for attachment of valve units · CPC title

  • functioning as guide only, e.g. bushings · CPC title

  • Bi-tubular units · CPC title

  • Details · CPC title

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Frequently asked questions

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What does patent US2017261060A1 cover?
In a shock absorber, an outer case made of resin is disposed so as to cover an inner case made of metal, and the outer case forms a reservoir chamber for storing the hydraulic fluid between the outer case and the inner case. The outer case is supported by the inner case via protrusions, which are formed on either one of the outer peripheral surface of the inner case and the inner peripheral sur…
Who is the assignee on this patent?
Kyb Corp
What technology area does this patent fall under?
Primary CPC classification F16F9/3257. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Thu Sep 14 2017 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).