Supports – Stand – Horizontally movable support surface
Patent
1989-12-18
1990-10-09
Ramirez, Ramon O.
Supports
Stand
Horizontally movable support surface
F16M 1300
Patent
active
049615599
ABSTRACT:
A dual latching arrangement for a pair of laterally spaced slide track assemblies supporting a vehicle seat support structure for horizontal fore and aft movement to a plurality of adjusted positions. The dual latching arrangement consists of a central U-shaped lift bar having each of its longitudinal legs rotationally supported about a transverse pivot axis adjacent the aft end of an associated track. Primary and secondary latching mechanisms are supported on respective upper sliding track members adjacent an associated leg for rotation about the pivot axis. Primary and secondary biasing springs are operative to urge each primary and secondary locking detent toward engagement with a series of openings on an associated lower track member fixed to the vehicle. Upon the lift bar being rotated to its unlatched mode the primary and secondary detents are removed from their lock openings allowing the seat support structure to be longitudinally adjusted. The dual latching arrangement accommodates for any tolerances variations between the track assemblies by requiring the primary latch mechanism to rotate in unison with latch bar locking the primary detent in an associated lower track opening thereby locking the seat support structure in an adjusted position while permitting the secondary latch mechanism detent to be biased towards its latching mode independent of the latch bar movement. The secondary biasing spring thus urges the secondary detent into floating contact with its lower track member for automatic engagement of the secondary detent in a corresponding lock opening upon subsequent tolerance compensating travel of the secondary upper track member.
REFERENCES:
patent: 3866876 (1975-02-01), Adams
patent: 4378101 (1983-03-01), Kazaoka
patent: 4635890 (1987-01-01), Matsuda
patent: 4639038 (1987-01-01), Heling
patent: 4730804 (1988-03-01), Higuchi
patent: 4781354 (1988-11-01), Nihei
patent: 4852846 (1989-08-01), Weier
patent: 4898356 (1990-02-01), Pipon
Barthel Edward P.
Chrysler Corporation
Olson Robert A.
Ramirez Ramon O.
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