Drive unit

Details Drive unit Drive unit

1997-04-04

1999-12-28

Wright, Dirk

Planetary gear transmission systems or components

Electric or magnetic drive or control

475343, F16H 3910

Patent

active

060074469

ABSTRACT:
A drive unit comprising a housing, a first worm gear rotatably mounted in the housing, an axle having a first end secured to the housing and defining a central axis therethrough, and a second worm gear mounted in the housing for rotation about the central axis, the first worm gear meshing with the second worm gear for driving the second worm gear. A planetary drive is mounted concentrically around the central axis and includes an output gear driven responsive to the second worm gear. An annular gear is driven by the output gear concentrically around the central axis for driving a work piece, the axle extending through the planetary drive into an opening within the annular gear. The planetary drive may include a sun gear mounted for rotation with the second worm gear, an annular gear fixed to the housing concentric with the central axis, and at least one planetary gear driven by the sun gear within the annular gear around and spaced from the central axis.

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Search Report, German Application No. 196 15 007.8, dated Sep. 20,1996.
English Language Abstract for Japanese Patent No. 07195979 A, Published.
English language Abstract for Japanese Patent No. 4-63738 A, Published.
English language Abstract for Japanese Patent No. 52-22245, Published Feb. 19, 1977.

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