Motor-incorporated hypocycloid-type speed reducer

Details Motor-incorporated hypocycloid-type speed reducer Motor-incorporated hypocycloid-type speed reducer

2008-04-08

2008-04-08

Le, David D. (Department: 3681)

Planetary gear transmission systems or components

Electric or magnetic drive or control

C475S162000, C475S169000, C475S170000, C475S177000

Reexamination Certificate

active

07354371

ABSTRACT:
A motor-incorporated hypocycloid-type speed reducer includes: a motor housed in a case; a first larger internal gear; a second smaller internal gear coaxial with a motor shaft; an output shaft coaxial with the motor shaft, the output shaft being provided with the second internal gear; and an external gear. A motor core of the motor is provided with an eccentric portion eccentric to the motor shaft at a predetermined degree. The external gear, which has a first external gear engaged with the first internal gear and a second external gear engaged with the second internal gear, is further provided with a rotor-receiving portion rotatable integrally with the eccentric portion of the motor core. The rotor-receiving portion is coaxial with the first external gear and the second external gear.

REFERENCES:
patent: 5479058 (1995-12-01), Seidou
patent: 6477918 (2002-11-01), Sakamoto
patent: 6661139 (2003-12-01), Moskob
patent: 6727614 (2004-04-01), Neubauer et al.
patent: 6857981 (2005-02-01), Hori et al.
patent: 2005/0215375 (2005-09-01), Kimura et al.
patent: 2000-118420 (2000-04-01), None
patent: 2000-120810 (2000-04-01), None

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