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Liquid sealing type anti-vibration apparatus

一种液体封装、防振装置的技术，应用在动力装置、喷气推进装置、内燃推进装置等方向，能够解决异常声音等问题，达到提高衰减特性、高效吸收、刚性提高的效果

Inactive Publication Date: 2005-11-23
TOYO TIRE & RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the displacement restricts the parts to vibrate when they contact, and the vibration is transmitted to the frame to generate abnormal sound.

Method used

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  • Liquid sealing type anti-vibration apparatus
  • Liquid sealing type anti-vibration apparatus
  • Liquid sealing type anti-vibration apparatus

Examples

Experimental program
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Embodiment Construction

[0074] Below, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a liquid-encapsulated anti-vibration device 100 according to an embodiment of the present invention.

[0075] This liquid-encapsulated anti-vibration device 100 is an anti-vibration device that supports and fixes the engine of the automobile and prevents the vibration of the engine from being transmitted to the vehicle frame. As shown in Figure 1, it has: A metal mounting part 1; a cylindrical second metal mounting part 2 mounted on the frame side under the engine; and a main vibration-isolating body 3 made of a rubber-like elastic body connecting them.

[0076] The first metal mounting member 1 is formed in a substantially cylindrical shape from a metal material such as aluminum, and, as shown in FIG. 1 , is provided with a recessed female screw portion 1a on its upper end surface. In addition, on the outer peripheral...

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PUM

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Abstract

A liquid-sealed vibration-isolating device capable of suppressing the occurrence of noise while securing low dynamic spring properties when vibration with a rather small amplitude is inputted and high-attenuation characteristics when vibration with a rather large amplitude is inputted. When the vibration with the rather large amplitude is inputted, the high-attenuation characteristics can be provided by restricting the displacement of an elastic partition membrane (15) by the displacement restriction ribs (17b) of a first holding member (17). Since the displacement restriction ribs (17b) are formed of three radially extended straight ribs, the low dynamic spring properties can be securely provided by sufficiently increasing the opening area of an opening part (17a). Also, since the displacement restricting projections (51) of the elastic partition membrane (15) are disposed at positions corresponding to the displacement restriction ribs (17b), the occurrence of noise can be securely suppressed.

Description

technical field [0001] The present invention relates to a liquid-encapsulated anti-vibration device, in particular to a liquid capable of suppressing noise while ensuring low dynamic spring characteristics when inputting vibrations with small amplitudes and high attenuation characteristics when inputting vibrations with large amplitudes Encapsulated anti-vibration device. Background technique [0002] A liquid-encapsulated anti-vibration device is known as an anti-vibration device that supports and fixes the engine of an automobile while preventing the vibration of the engine from being transmitted to the vehicle frame. [0003] As a liquid-encapsulated anti-vibration device, in general, the first mounting part mounted on the engine side and the second mounting part mounted on the frame side are connected by a main anti-vibration body composed of a rubber-like elastic body. Connected to form a liquid sealing chamber between the diaphragm mounted on the second mounting part ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/06F16F13/10
CPCF16F13/108F16F13/106F16F13/101F16F13/105
Inventor 山本健太郎
Owner TOYO TIRE & RUBBER CO LTD
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