Vibration isolation device

An anti-vibration device and anti-vibration technology, which is applied to springs, springs/shock absorbers, mechanical equipment, etc. made of plastic materials, can solve the problems such as the inability to fully ensure the spring constant, reduce product costs, suppress air pressure changes, The effect of suppressing abnormal noise

Inactive Publication Date: 2018-12-04
TOYO TIRE & RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the conventional technology, the spring constant in the axial direction cannot be sufficiently ensured

Method used

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  • Vibration isolation device
  • Vibration isolation device
  • Vibration isolation device

Examples

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Embodiment Construction

[0031] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, refer to figure 1 A schematic configuration of the vibration isolator 1 according to the first embodiment of the present invention will be described. figure 1 It is a cross-sectional view of the anti-vibration device 1 according to the first embodiment of the present invention. also, figure 1 An axial cross section including the axis O of the anti-vibration device 1 is illustrated.

[0032] like figure 1 As shown, the anti-vibration device 1 is a sleeve arranged on the automobile suspension. The anti-vibration device 1 includes an inner cylinder 10 , an outer cylinder 20 coaxially arranged at a distance from the radially outer side of the inner cylinder 10 , and a vibration-isolating mechanism made of a rubber-like elastic body and connecting the inner cylinder 10 and the outer cylinder 20 . Substrate 30. In the anti-vibration device 1 , the inner t...

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Abstract

The present invention has an object to provide a vibration isolation device through which it can be restrained that abnormal sound occurs when the inner pipe relatively displaces against the outer pipe. The stopper portion (32) has the communication passage (62) communicating the space (S) between the inner circumference side of the stopper portion (32) and the inner pipe (10) with outside when the inner pipe (10) relatively displaces against the outer pipe (20). Thereby, even if volume of the space (S) at the inner circumference side of the stopper portion (32) changes when the inner pipe (10) relatively displaces against the outer pipe (20), communication of air between the space (S) and outside is secured through the communication passage (62), therefore it can be restrained that atmospheric pressure within the space (S) changes. Thus, since it can be restrained that the stopper portion (32) closely contacts with the enlarged portion (13) as a suction cup, it can be restrained thatabnormal sound occurs when the inner pipe (10) relatively displaces against the outer pipe (20).

Description

technical field [0001] The present invention relates to an anti-vibration device. In particular, it relates to an anti-vibration device capable of suppressing abnormal noise generated during relative displacement of an inner cylinder relative to an outer cylinder. Background technique [0002] In automobile suspensions and the like, a bush (vibration-isolating device) connecting an inner cylinder and an outer cylinder with a vibration-isolating base made of a rubber-like elastic body is arranged between a vehicle body and a member on the vibrating side. For example, Patent Document 1 discloses a vibration-proof device in which the diameter of the inner cylinder is enlarged on the axial end side. However, in the conventional technology, the spring constant in the axial direction cannot be sufficiently ensured. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2002-188671 Contents of the invention [0006] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/38
Inventor 木场洋人
Owner TOYO TIRE & RUBBER CO LTD
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