Power seat slider driving mechanism

Details Power seat slider driving mechanism Power seat slider driving mechanism

1989-12-15

1991-09-17

Chin-Shue, Alvin C.

Supports

Stand

Horizontally movable support surface

B60N 102

Patent

active

050487868

ABSTRACT:
A power seat drive mechanism for an automobile has a motor which drives a worm which in turn drives a worm wheel at a given speed. The worm wheel is connected to a threaded shaft which it drives to rotate. Rotation of the threaded shaft forces it through a nut which is fixed to the body of the vehicle. This drives the threaded shaft which is connected to the sliding frame of the seat longitudinally with respect to the vehicle. In order to prevent force exerted on the seat in the direction of its travel, from causing the threaded shaft to rotate faster than it is being driven and thus overrun the worm gear, a resilient governor member is included which provides a limited braking effect and tends to resist the rotation of the shaft. With this configuration, backlash in the drive mechanism is eliminated.

REFERENCES:
patent: 3184209 (1965-05-01), Colautti
patent: 4292722 (1981-10-01), Worsham
patent: 4434677 (1984-03-01), Linley, Jr.
patent: 4721337 (1988-01-01), Tomita
patent: 4802374 (1989-02-01), Hamelin
patent: 4907776 (1990-03-01), Nemoto

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