Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1988-12-05
1990-05-22
Oberleitner, Robert J.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
2671402, 267293, F16M 500, F16F 1300
Patent
active
049271237
ABSTRACT:
A hydraulically damped elastic sleeve spring comprises an inner tube, an outer tube enclosing the former at a radial spacing and a spring body of rubber or similar elastic material that is adhesively connected to the tubes in the gap formed therebetween. The spring body comprises a partition forming at least two chambers disposed one behind the other with respect to the plane in which the force to be damped is applied. The chambers are separated by the partition, filled with liquid and connected to each other via at least one choke opening. The partition may comprise two sections that bridge the gap on both sides of the inner tube in a direction essentially transverse to the force application direction. At least one of the partition sections is stiffened against transverse displacement by a reinforcement body that may be formed as a column. The reinforcement body may extend at a radial distance from the inner and the outer tubes parallel to the longitudinal extent of the tubes.
REFERENCES:
patent: 4588174 (1986-05-01), Konishi
Firma Carl Freudenberg
Oberleitner Robert J.
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