Gas spring counterbalance system

Details Gas spring counterbalance system Gas spring counterbalance system

1985-02-27

1986-11-18

Halvosa, George E. A.

Spring devices

Vehicle

Compound

16289, 16306, 267120, 267121, F16F 954

Patent

active

046231323

ABSTRACT:
A gas spring-assisted counterbalance system for a closure member, e.g., the rear door of a hatchback automobile, includes a mechanical spring connected in series with a gas spring. The system is arranged so that the gas spring reaches its fully retracted position before the door is fully closed, after which the door is closed against the force of the mechanical spring. Longitudinal vibrations or short movements of the system which otherwise would impart undesired short stroke cycles to the gas spring are absorbed by the mechanical spring, thereby enhancing the operating lifetime of the gas spring.

REFERENCES:
patent: 3207498 (1965-09-01), Wustenhagen et al.
patent: 3831919 (1974-08-01), Nicholls
patent: 3977712 (1976-08-01), Northrop
patent: 4245826 (1981-01-01), Wirges
patent: 4380847 (1983-04-01), Tajima

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