Spring devices – Vehicle – Mechanical spring and nonresilient retarder
Patent
1988-04-11
1989-02-21
Halvosa, George E. A.
Spring devices
Vehicle
Mechanical spring and nonresilient retarder
267 33, 267293, 280668, 280710, F16F 1300
Patent
active
048058866
ABSTRACT:
An improved deflection jounce bumper assembly for a vehicle suspension strut which dampens and limits the action of the shock absorber in its jounce stroke. The bumper assembly comprises an inverted metal cup-shaped shell member which attaches a molded elastomeric bumper member to the strut upper mount. The bumper member has a lower hollow right cylindrical sleeve portion which surrounds the strut piston rod with the sleeve upper end in turn surrounded by an outer side wall portion of the shell member. The sleeve portion has a predetermined height such that upon its lower end face impacting on the strut support casing upper end closure plate an initially high spring dampening rate is achieved. A control ring is embedded in the sleeve portion adjacent its lower end face which, together with the shell member outer side wall is operative to restrict and control the expansion of the sleeve portion as it undergoes progressive spring rate deformation adjacent the full jounce position.
REFERENCES:
patent: 3412990 (1968-11-01), Gladstone
patent: 4248454 (1987-02-01), Cotter et al.
patent: 4434977 (1984-03-01), Chiba et al.
patent: 4618127 (1986-10-01), Le Salver et al.
patent: 4681304 (1987-07-01), Hassan
Barthel Edward P.
Chrysler Motors Corporation
Halvosa George E. A.
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