Planetary gear type reduction gear with torque limiter

Details Planetary gear type reduction gear with torque limiter Planetary gear type reduction gear with torque limiter

2006-04-06

2008-12-16

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

Condition responsive control

Overload release

Reexamination Certificate

active

07465248

ABSTRACT:
A planetary gear type reduction gear with torque limiter including an input shaft (7) of an output shaft of a DC motor and an output shaft (14) are journalized on a stationary member (11). At least one stage of the planetary gear type reduction mechanism includes a central gear (8), a planetary gear (34) meshed with the central gear (8), an inner gear (22) meshed with the planetary gear (34), and a carrier (30) journalizing the planetary gear (34). The inner gear (22) is disposed with a clearance to the stationary member11in a radial direction, and the inner gear (22) is opposed and disposed to the stationary member (11) in the axial direction by means of friction members (26, 28), which are urged against the inner gear (22). The inner gear22is retained at the side of the stationary member (11) in a slip rotation condition by the friction force between the friction members (26, 28) and the inner gear (22). The torque limiter is provided with a spring power adjusting device for adjustment of the pressing power of the pressing device that applies pressure to the friction members in a direction toward the inner gear.

REFERENCES:
patent: 3079814 (1963-03-01), Nickstadt
patent: 4892013 (1990-01-01), Satoh
patent: 5551927 (1996-09-01), Enzmann et al.
patent: 5732805 (1998-03-01), Nakamura
patent: 6010426 (2000-01-01), Nakamura
patent: 6702090 (2004-03-01), Nakamura et al.
patent: 7223195 (2007-05-01), Milbourne et al.

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