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Vibration isolation device

A technology for vibration isolation and partitions, applied to shock absorbers, shock absorber-spring combinations, springs, etc., can solve the problem of reduced durability of the first elastic body and achieve high durability

Inactive Publication Date: 2012-04-11
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the anti-vibration device with such a structure, if the first elastic body is stretched and deformed under the condition that the load (load) from the engine acts, the durability of the first elastic body will decrease.

Method used

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Embodiment Construction

[0032] Hereinafter, a vibration isolation device according to an embodiment of the present invention will be described with reference to the drawings. In addition, in the drawings, the reference sign S represents the axis of the device, and the following description will be made with the direction along the axis S being the axial direction of the device.

[0033] exist figure 1 and figure 2 The vibration isolation device 10 according to the first embodiment of the present invention is shown in . Such as figure 1 As shown, a substantially cylindrical outer cylinder fitting 12 is provided on the outer peripheral side of the vibration isolator 10 , and an attachment fitting 20 is arranged substantially coaxially on the inner peripheral side of the outer cylindrical fitting 12 . The vibration isolator 10 is connected to the vehicle body side of the vehicle by inserting the outer cylinder metal fitting 12 into a cup-shaped holding metal fitting (not shown). A stepped portion...

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Abstract

A vibration isolating device which can damp vibrations in two directions and is highly durable. A pair of pressure receiving liquid chambers (102A, 102B) is formed between a first rubber elastic body (24) and a second rubber elastic body (38) at positions symmetrical about the axis (S). In the first rubber elastic body (24), the shape of a first rubber elastic body (18) in a non-loaded state is determined in such a manner that the portion between an inner connection section (24B) and an outer connection section (24A) is substantially horizontal in a loaded state in which the first rubber elastic body (24) supports the load of an engine.

Description

technical field [0001] The present invention relates to a fluid-enclosed vibration isolating device for preventing vibration transmission from a member generating vibration, and particularly relates to a vibration isolating device preferably used for an engine mount of an automobile or the like. Background technique [0002] In vehicles such as passenger cars, a vibration isolating device serving as an engine mount is arranged between an engine serving as a vibration generator and a vehicle body serving as a vibration receiver. This vibration isolator has a structure that absorbs vibration generated from the engine and prevents the vibration from being transmitted to the vehicle body side. [0003] For example, Patent Document 1 describes a vibration isolation system in which a first elastic body and a second elastic body are arranged between an outer cylinder fitting and a mounting fitting, and a first hollow portion and a second hollow portion are formed between these elas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/18F16F13/06
CPCF16F13/108F16F13/101F16F13/106
Inventor 小川和也折川通洋岛村晓夫小岛宏
Owner BRIDGESTONE CORP
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