Vertical adjustment device for a vehicle seat

Details Vertical adjustment device for a vehicle seat Vertical adjustment device for a vehicle seat

1984-09-20

1986-03-04

Machado, Reinaldo P.

Supports

Resilient support

Adjustable preloading of resilient means

248421, 248588, B60N 102, F16F 116

Patent

active

045736570

ABSTRACT:
An improved vertical adjustment device for use with a seat in a vehicle such as an automobile is disclosed which is capable to adjust the cushioning function of such seat. In this vertical adjustment device, a cam with an operation lever is cooperatively connected with the sliding portions of a pair of X-shaped expansion legs by means of springs interposed between the cam and the sliding portions to energize the sliding portions in their sliding direction. The expansion legs are respectively provided between a seat support frame for carrying the seat thereon and a mounting frame to be fixed directly or indirectly to a floor of the vehicle. With this improved vertical adjustment device, the cam can be rotated to adjust the elastic forces of the springs.

REFERENCES:
patent: 2735669 (1956-02-01), Seiler
patent: 2977109 (1961-03-01), Beckwith
patent: 3473776 (1969-10-01), Costin
patent: 3826457 (1974-07-01), Huot
patent: 4125242 (1978-11-01), Meiller
patent: 4241894 (1980-12-01), Okuyama
patent: 4312491 (1982-01-01), Aondetto

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