Seat adjusting mechanism

Details Seat adjusting mechanism Seat adjusting mechanism

1976-10-20

1977-08-23

Parsons, Jr., Marion

Supports

Stand

Adjustable vertically

248373, 297346, F16M 1124

Patent

active

040435296

ABSTRACT:
A manually operable four-way seat adjuster mechanism comprising a horizontally movable carriage assembly, and a seat assembly connected to said carriage by bell-cranks. The bell-cranks at each side of the carriage assembly are connected by links, at least one of which in turn is provided with notches, and a correspondingly notched latch lever retains the link in adjusted latched position. Torsion bars interconnect bell-cranks at opposite sides of the carriage, each comprising a rod extending through a closely fitted tube, the ends of which are fixed to the bell-cranks. The ends of the rods are flattened and fixed to opposite sides of the carriage. A strong balance spring assists the bell-cranks, and the geometry is such as to provide a substantially uniform lifting torque to the seat throughout its range of adjustment.

REFERENCES:
patent: 2921621 (1960-01-01), Williams et al.
patent: 3148858 (1964-09-01), Harms
patent: 3368840 (1968-02-01), Dangauthier
patent: 3669398 (1972-06-01), Robinson
patent: 3692271 (1972-09-01), Homier

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