Chairs and seats – Movable back – Tiltable
Patent
1993-02-02
1994-04-05
Crowder, Clifford D.
Chairs and seats
Movable back
Tiltable
29736214, 2973611, 297363, 74 8915, B60N 202, F16N 2702
Patent
active
052998533
ABSTRACT:
A vehicle seat assembly with a linear actuator is disclosed in which the actuator is used to adjust the relative position of two relatively movable components of the seat assembly. The actuator includes a first part attached to one of the seat assembly components in the form of a lead screw with an external helical screw thread. A second part of the actuator is attached to the other seat component that is relatively movable and includes a housing containing a spin nut threaded onto the lead screw. The second part further includes means for axially capturing the spin nut to prevent the spin nut from rotating along the lead screw and means for selectively releasing the spin nut from its axial capture to permit rotation about the lead screw and thereby relative movement of the actuator second part relative to the first part. A cam is mounted to the second part to selectively engage and release the spin nut from its axial capture.
REFERENCES:
patent: 2596760 (1952-05-01), Bryant
patent: 3127788 (1964-04-01), Martens
patent: 3383135 (1968-05-01), Posh
patent: 4233946 (1980-09-01), Kluting
patent: 4579386 (1986-04-01), Rupp et al.
patent: 4589301 (1986-05-01), Griner
patent: 4685734 (1987-08-01), Brandoli
Cole Joanne H.
Griswold Les
Hewko Marc D.
Jones William H.
Crowder Clifford D.
Hoover Universal Inc.
Mohanty Bibhu
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