Vibration isolating apparatus

Details Vibration isolating apparatus Vibration isolating apparatus

1997-11-26

1999-09-14

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, 248562, F16F 500

Patent

active

059509945

ABSTRACT:
A vibration isolating apparatus includes a first mounting member; a second mounting member having a through hole; an elastic body provided to be elastically deformable and mounted in such a manner as to be interposed between the first mounting member and the second mounting member; a liquid chamber of which at least a portion of a partition wall is formed of the elastic body and the second mounting member and which is filled with a liquid; and an elastic membrane provided to be elastically deformable and fixed to a portion of the second mounting member forming the partition wall of the liquid chamber so as to cover the through hole. Accordingly, even when vibration of a high frequency which cannot be damped by the elastic body and a liquid is transmitted from the side of a vibration-generating portion, the elastic membrane elastically deforms and the dynamic spring constant becomes low. As a result, vibration is not easily transmitted to the side of a vibration-receiving portion.

REFERENCES:
patent: 4215842 (1980-08-01), Brenner et al.
patent: 4288063 (1981-09-01), Brenner et al.

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