Supports – Resilient support – Including disabling means for resilient element
Patent
1980-10-01
1983-05-24
McCall, James T.
Supports
Resilient support
Including disabling means for resilient element
248393, 248430, 248638, 296 65R, F16M 1300, B60H 102
Patent
active
043847013
ABSTRACT:
Fore and aft isolator assembly for a suspended vehicle seat permits the operator to rotate a single control lever in one direction to allow the seat to be moved to any desired fore and aft position and in the opposite direction to lock the seat in that position in either a fixed manner relative to the seat base or in an "isolate" mode where it is free to travel back and forth to a limited degree against resilient elements. The assembly permits the seat to have a very low profile limited only by the clearance required for the suspension structure. It includes an intermediate frame having a series of rack teeth which is positioned between top and bottom frames attached, respectively, to the seat upper and to the suspension. The bottom frame also incorporates a toothed rack. A rotatable adjusting shaft which is rotatably mounted to the top frame slidably supports the intermediate frame and also fixedly supports a first locking pawl which can engage a selected tooth in the rack on the bottom frame. The shaft also carries a second locking pawl mounted in a "lost-motion" manner in which it can engage the rack on the intermediate frame either when the first locking pawl is engaged in a "seat lockup" position or when it is disengaged in a "seat isolate" position. Further rotation of the shaft will also disengage the second locking pawl when the seat is in a "seat adjust" position.
REFERENCES:
patent: 1943550 (1934-01-01), Potter
patent: 2723711 (1955-11-01), Duncan
patent: 2770286 (1956-11-01), Weller
patent: 2892483 (1959-06-01), De Rose
patent: 3100617 (1963-08-01), Radke et al.
patent: 3258241 (1966-06-01), Oswald
patent: 4194716 (1980-03-01), Barecki et al.
Clark Barry L.
Hoatson Jr. James R.
McCall James T.
Page II William H.
UOP Inc.
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