Adjusting drive

Details Adjusting drive Adjusting drive

1989-01-23

1990-03-06

McCall, James T.

Machine element or mechanism

Gearing

Directly cooperating gears

384303, 384440, F16C 3200

Patent

active

049055313

ABSTRACT:
An adjusting drive comprises an electric motor having a motor armature provided with a motor armature shaft, a worm transmission associated with the drive motor and having a worm shaft which is formed as a floatingly arranged extension of the motor armature shaft, the worm shaft having a free end provided with a convex end surface, a stationary running element on which the motor armature shaft is fixed in an axial direction when it is rotated in a rotary direction, so that a pitch angle of the worm shaft in connection with a flank angle of teeth of the worm shaft produce a load component extending transversely to a longitudinal axis of the worm shaft, the running element which cooperates with the convex end surface of the worm shaft having a running surface which is formed spatially relative to the longitudinal axis of the worm wheel so that it is inclined in direction of the loading component of the worm shaft.

REFERENCES:
patent: 2699364 (1955-01-01), Schmidlin
patent: 2730369 (1956-01-01), Steed
patent: 4314732 (1982-02-01), Murphy

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