Seat height adjustment mechanism

Details Seat height adjustment mechanism Seat height adjustment mechanism

1977-12-30

1979-06-26

Hafer, Robert A.

Supports

Stand

Tilting support surface

248421, F16M 1112

Patent

active

041590953

ABSTRACT:
A seat height adjustment mechanism comprises a seat base frame mounted on a supporting fixture by means of front and rear sets of levers to enable the vertical height of the front and rear ends of the seat base to be adjusted relative to the fixture. Angular adjustment of the front and rear levers is effected by means of respective gear sets at opposite sides of the seat. The gear set associated with the front end of the seat base can be operated directly by the seat occupant and the two gear sets are linked by a selectively operable clutch device so that the rear end gear set can be operated simultaneously with the front end gear set if the clutch is in the operative condition. In this way, the seat is raised or lowered bodily at both ends. When the clutch is inoperative, the rear end gear set is not operated and only the front end of the seat is then raised or lowered.

REFERENCES:
patent: 3079118 (1963-02-01), Pickles
patent: 3460793 (1969-08-01), Dosh
patent: 3662984 (1972-05-01), Robinson et al.
patent: 4073459 (1978-02-01), Pickles

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