Seat backrest tilt and height adjustment means

Details Seat backrest tilt and height adjustment means Seat backrest tilt and height adjustment means

1978-03-20

1980-01-01

Lyddane, William E.

Chairs and seats

Movable back

297358, 297362, A47C 1022, A47C 1025

Patent

active

041813570

ABSTRACT:
A vehicle seat comprises a seat assembly including a seat pan, a backrest assembly including a backrest pan, a backrest height adjustment mechanism connected between the seat pan and the backrest pan and including a height adjustment knob, and a backrest tilt adjustment mechanism connected between the seat pan and the backrest pan and including a tilt adjustment knob. The backrest pan can be tilted regardless of its vertical position relative to the seat pan and can be moved vertically regardless of its tilted position relative to the seat pan. The tilt adjustment mechanism further includes a connector assembly connected to and tiltable in response to rotation of the tilt adjustment knob and including a pair of relatively slideable connector members, one of the connector members being connected to the tilt adjustment knob and the other of the connector members being connected to the backrest pan. The height adjustment mechanism and the tilt adjustment mechanism include means to limit vertical and tilting movement, respectively, of the backrest pan.

REFERENCES:
patent: 2565867 (1951-08-01), Lundquist
patent: 3397912 (1968-08-01), Bush
patent: 3667804 (1972-06-01), Yasui et al.
patent: 3673891 (1972-07-01), Pickles
patent: 3814475 (1974-06-01), Slabon et al.

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