Vibration preventing device

Details Vibration preventing device Vibration preventing device

1986-07-03

1987-11-17

Halvosa, George E. A.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

180300, 188298, 243562, 243636, F16F 1300

Patent

active

047069473

ABSTRACT:
This invention relates to multiple mounting vibration-preventing device wherein a partition wall is interposed between an upper plate and a lower plate. An upper vibration-preventing rubber member is interposed between the partition wall and the upper plate so as to define an upper damper liquid chamber therebetween. A lower vibration-preventing rubber member is interposed between the partition wall and the lower plate so as to define a lower damper liquid chamber therebetween. The upper damper liquid chamber communicates with the lower damper liquid chamber through an orifice. An upper elastic film, disposed inside the upper vibration-preventing rubber member, has a portion spliced to the partition wall and its outer end part caulked to the upper plate. The upper damper liquid chamber is defined by the upper vibration-preventing rubber member and the upper elastic film. A lower elastic film, disposed inside the lower vibration-preventing rubber member, has a portion spliced to the partition wall and an outer end part caulked to the lower plate. The lower damper liquid chamber is defined by the lower vibration-preventing rubber member and the lower elastic film.

REFERENCES:
patent: 2421585 (1947-06-01), Thiry
patent: 2555347 (1951-06-01), Lee
patent: 3698703 (1972-10-01), Hipsher
patent: 4572488 (1986-02-01), Holmberg, Jr. et al.

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