Tubular Vibration-Damping Device
US-2015323031-A1 · Nov 12, 2015 · US
Anti-vibration device
US9505285B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9505285-B2 |
| Application number | US-201414765078-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 10, 2014 |
| Priority date | Feb 25, 2013 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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- Title
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- Abstract
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
An anti-vibration device includes: an inner cylinder connected to one of a vibration generating portion and a vibration receiving portion; an outer cylinder connected to the other one of the vibration generating portion and the vibration receiving portion; an intermediate cylinder pressed in an inner periphery of the outer cylinder; a main elastic body connecting the inner cylinder and the intermediate cylinder; and a stopper elastic body independent of the main elastic body, the stopper elastic body being fixed to the intermediate cylinder and facing, in a direction orthogonal to an axial direction of the inner cylinder, the inner cylinder with at least a cavity in between, the cavity being formed through the main elastic body in the inner cylinder axial direction, wherein the stopper elastic body has an axial stopper portion that protrudes beyond the intermediate cylinder and the outer cylinder in the inner cylinder axial direction.
First claim
Opening claim text (preview).
The invention claimed is: 1. An anti-vibration device comprising: an inner cylinder connected to one of a vibration generating portion and a vibration receiving portion; an outer cylinder connected to the other one of the vibration generating portion and the vibration receiving portion; an intermediate cylinder pressed in an inner periphery of the outer cylinder; a main elastic body connecting the inner cylinder and the intermediate cylinder; and a stopper elastic body independent of the main elastic body, the stopper elastic body being fixed to the intermediate cylinder and facing, in a direction orthogonal to an axial direction of the inner cylinder, the inner cylinder with at least a cavity in between, the cavity being formed through the main elastic body in the axial direction of the inner cylinder, wherein the stopper elastic body has an axial stopper portion that protrudes beyond the intermediate cylinder and the outer cylinder in the axial direction of the inner cylinder and wherein the axial stopper portion is arranged only inside the intermediate cylinder in a radial direction of the inner cylinder. 2. The anti-vibration device according to claim 1 , wherein a center line of the axial stopper portion is closer to the intermediate cylinder than a center line of the stopper elastic body, in a cross section orthogonal to the axial direction of the inner cylinder. 3. The anti-vibration device according to claim 1 , wherein at least one part of the stopper elastic body gradually increases in thickness from a side facing the inner cylinder toward the intermediate cylinder, in a cross section along the axial direction of the inner cylinder. 4. The anti-vibration device according to claim 1 , wherein an outer surface contour of an outer end of the axial stopper portion in the axial direction of the inner cylinder has a curved surface that is convex outward from the axial stopper portion. 5. The anti-vibration device according to claim 1 , further comprising: a second inner cylinder whose axial direction is different from the axial direction of the inner cylinder; and a second outer cylinder connected to the outer cylinder via a connecting rod, and arranged radially outside the second inner cylinder with a second main elastic body in between.
Assignees
Inventors
Classifications
Damping action or damper · CPC title
characterised by adaptations to counter axial forces (F16F1/393 takes precedence) · CPC title
Mounting brackets therefor, e.g. stamped steel brackets; Restraining links · CPC title
Dynamic damper · CPC title
- F16F1/3828Primary
End stop features or buffering (F16F1/3807 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US9505285B2 cover?
- An anti-vibration device includes: an inner cylinder connected to one of a vibration generating portion and a vibration receiving portion; an outer cylinder connected to the other one of the vibration generating portion and the vibration receiving portion; an intermediate cylinder pressed in an inner periphery of the outer cylinder; a main elastic body connecting the inner cylinder and the inte…
- Who is the assignee on this patent?
- Bridgestone Corp
- What technology area does this patent fall under?
- Primary CPC classification F16F1/3828. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).