Gear Mechanism

Details Gear Mechanism Gear Mechanism

1996-02-20

1997-11-25

Wright, Dirk

Planetary gear transmission systems or components

Condition responsive control

Overload release

F16H 5700

Patent

active

056905777

ABSTRACT:
A conventional gear mechanism for employment in, e.g., an accumulator driven electric bore machine or electric drill, is provided with an overload coupling provided with a light-weight plastic annular gear and a separate metal cam disk or guard plate which protects the plastic annular gear from the abrasive or damaging forces occurring at the time of the torque limiting produced by the slipping of the torque overload coupling. In the present invention the plastic annular gear and guard plate are formed as a single component, namely, a plastic annular gear with an integral wear resistant cam disk, the annular gear and cam disk formed as unit of an injection molded plastic, wherein the face side of the annular gear is layered with a wear resistant material.

REFERENCES:
patent: 2176928 (1939-10-01), Short
patent: 3079814 (1963-03-01), Nickstadt
patent: 3587346 (1971-06-01), Takahashi
patent: 3752278 (1973-08-01), States
patent: 4597453 (1986-07-01), Kilmer et al.
patent: 4614134 (1986-09-01), Bohle
patent: 4635489 (1987-01-01), Immamura et al.
patent: 4641551 (1987-02-01), Pascaloff
patent: 5551927 (1996-09-01), Enzmann et al.

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