Vibration proof device with bracket

Abstract

Provide is a vibration proof device with a bracket of a new structure which can make compatible the demand characteristic of a main part rubber elasticity object, and the demand characteristic of stopper rubber, and can obtain the vibration-proof performance made into the object, and a buffer stopper operation. In a vibration proof device with a bracket, a main part rubber elasticity object (18) and a first stopper rubber (32) integrally formed are provided by a first mounting member 1(4,); a second stopper rubber (88) which was formed by the main part rubber elasticity object (18) and a separate body, and was enlarged in a spring constant rather than the first stopper rubber (32) is provided by a bracket (66), a stopper has a stopper rubber abutment surface which abuts with the first stopper rubber (32) and the second stopper rubber (88), and restricts the amount of elastic deformation of the main part rubber elasticity object (18) by relative displacement of the first mounting member (14) and the second mounting member (16), and there is. In a stopper, the first stopper rubber (32) is close to a stopper rubber abutment surface rather than the second stopper rubber (88).

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Japanese Patent Application JP2015-226333 entitled "ブラケット付き Anti-vibration Device (Anti-vibration Device with Bracket)" filed on November 19, 2015, the entire content of which application is incorporated by reference In this article. technical field [0003] The present invention relates to an anti-vibration device with a bracket used for engine mounts and the like of automobiles. Background technique [0004] Conventionally, as a kind of anti-vibration supporting body or anti-vibration connecting body arranged between the components constituting the vibration transmission system and connecting the components of these vibration transmission systems to each other in vibration isolation, a vibration isolation device is known. The device is applied to, for example, an engine mount of an automobile or the like. As disclosed in, for example, Japanese Patent Application Laid-Open No. 20...

AI Technical Summary

Problems solved by technology

[0007] However, in the structure of Patent Document 1 in which the rubber layer is integrally formed with the rubber elastic body, there is a problem that it is difficult to achieve both the properties required for the rubber elastic body and the properties required for the rubber layer.

That is, the rubber elastic body needs a relatively soft elastic coefficient in order to facilitate the vibration-proof performance caused by elastic deformation. The load capacity becomes insufficient, and the rubber layer may be damaged when the stopper contacts.

On the other hand, when trying to set a large elastic coefficient that can sufficiently satisfy the load resistance in the rubber layer, the elastic coefficient of the rubber elastic body also increases, and it is difficult to achieve the intended anti-vibration performance.

Images