Liquid sealed mount and method of assembling the same

Abstract

A liquid sealed mount (10) is constructed from a vibration damping body (13) and a ring-like elastic body (14). The vibration damping body (13) is attached to a vehicle body frame (11), and the elastic body (14) absorbing vibration is assembled into between the vehicle body frame (11) and a member (12) on the bottom wall side. Because the vehicle body frame (11) takes a load, a case (16) is not deformed. Since high-strength is not required for the vibration damping body (13), weight and cost of the mount are reduced and the mount is reduced in size. Because a load on the elastic body (14) acts in the compression direction, cracks do not occur in the elastic body (14). Because the mount has both a vibration absorption function and a vibration damping function, it has sufficient vibration damping performance.

Description

technical field [0001] The present invention relates to a vibration-damping liquid-enclosed bracket used in industrial machinery such as construction machinery, large trucks, automobiles, etc. Excellent liquid-enclosed stand for occasional use. Background technique [0002] In recent years, in construction machines such as shovels and wheel loaders, rubber brackets or liquid-filled brackets have been installed between the driver's cab and the body frame. With vibration absorption function and vibration damping function, the driver can obtain comfortable ride and operability. In order to ensure the comfort of the driver, it is necessary to increase the degree of isolation of the vibration from the frame side of the vehicle body, that is, to increase the flexibility of the bracket, so that even if the cab vibrates, the vibration can be attenuated as quickly as possible. This is the current bracket. Conditions required. [0003] However, in the above-mentioned construction m...

AI Technical Summary

Problems solved by technology

Therefore, when an excessive load in the angular direction (こじり direction) to the extent of overturning is applied to the case, deformation of the case or cracks may occur on the case, and there is a possibility that the viscous liquid may leak.

In addition, since a large load is applied to the elastic body in the shear direction, there is a possibility that cracks may occur on the elastic body

[0015] Furthermore, according to the liquid-filled bracket disclosed in Patent Document 3, compared with the liquid-filled bracket described in Patent Document 2, although the housing is thicker and the bracket is stronger, the thicker portion and the press work The two parts of the upper part constitute the shell, so the structural parts increase, the weight and cost increase, and the bracket inevitably becomes larger, which makes it difficult to apply to small construction machinery.

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