Power window drive device of reduced size

Details Power window drive device of reduced size Power window drive device of reduced size

1994-12-30

1996-10-15

Kannan, Philip C.

Movable or removable closures

With operator for movably mounted closure

Drive within closure housing

74 8922, 403359, E05F 1148

Patent

active

055642314

ABSTRACT:
A power window drive device, including a motor, a worm wheel, a drive drum, and the like, whose manufacturing cost is reduced and which has a reduced size. A rotary shaft, driven by a motor, has a flange extending outward and a spline extending from the flange to the end of the rotary shaft. A drive drum, axially coupled to the rotary shaft, has a shaft hole with a spline and resiliently deformable hook pieces. The hook pieces engage the flange of the rotary shaft, thereby making the rotary shaft immovable in the axial direction. By inserting the end of the rotary shaft into the shaft hole of the drive drum, thereby coupling the splines and making the hook pieces engage the flange of the rotary shaft, the rotary shaft is made immovable with respect to the drive drum in both the axial and the circumferential directions. With this construction, there is no need of separate coupling elements, and the work to assemble the device is simplified.

REFERENCES:
patent: 4534233 (1985-08-01), Hamaguchi
patent: 4813808 (1989-03-01), Gehrke
patent: 4859110 (1989-08-01), Dommel
patent: 5207393 (1993-05-01), Marscholl

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