Compact motor with speed reducing mechanism

Details Compact motor with speed reducing mechanism Compact motor with speed reducing mechanism

1996-06-13

1998-02-10

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 78, 310 38, H02K 706, H02K 710

Patent

active

057172650

ABSTRACT:
Disclosed herein is a compact motor with a speed reducing mechanism, including a cylindrical casing having an open end, a stator fixedly provided in the casing, an exciting coil provided in the casing, a rotor provided in the casing and having a high-speed output shaft on which a pinion is fixed, a cover for covering the open end of the casing, a low-speed output shaft projecting from a hole formed through the cover, and a reduction gear train interposed between the pinion and the low-speed output shaft for transmitting power to the low-speed output shaft. The compact motor further includes a lever connected to the low-speed output shaft; an eccentric cylinder formed integrally with a final gear of the reduction gear train and adapted to eccentrically rotate about a gear shaft for rotatably supporting the final gear; and a connecting member having one end pivotally engaging with an outer circumference of the eccentric cylinder and another end pivotally engaging with the lever. Accordingly, the low-speed output shaft itself can be oscillated. Further, in the event that an overload is applied to the low-speed output shaft during oscillation, breakage of the intermediate transmission members can be prevented, and an oscillatory position of the low-speed output shaft can be kept unchanged.

REFERENCES:
patent: 2604764 (1952-07-01), Smith
patent: 3016766 (1962-01-01), Hoyler
patent: 3022373 (1962-02-01), Levine et al.
patent: 3681812 (1972-08-01), Colucci
patent: 3782515 (1974-01-01), Cowen, Jr.
patent: 4466153 (1984-08-01), Seibicke
patent: 4741067 (1988-05-01), Jambor et al.
patent: 4774423 (1988-09-01), Karasawa et al.
patent: 5274876 (1994-01-01), Wehrspann
United Kingdom Search Report dated Jul. 22, 1994 (1 page).
Examiner's Report dated Jul. 26, 1994 (2 pages).

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