Miniature motor with a worm reduction gear

Details Miniature motor with a worm reduction gear Miniature motor with a worm reduction gear

1990-02-20

1991-01-29

Brown, Peter R.

Machine element or mechanism

Gearing

Directly cooperating gears

74 8914, F16H 116

Patent

active

049877917

ABSTRACT:
A miniature motor with a worm reduction gear comprising a miniature motor having a motor shaft, which is of a relatively small diameter and which is extended to a predetermined length, at least three bearings supporting the motor shaft, and a worm having a shaft hole into which the motor shaft is inserted. Since the miniature motor and the worm reduction gear are manufactured separately, and subsequently assembled together by press-fitting the motor shaft in to the shaft hole of the worm the assembly of the miniature motor with a worm reduction gear is facilitated. The use of a motor shaft having a diameter smaller than the diameter of the worm helps reduce the size and weight of the miniature motor with a worm reduction gear.

REFERENCES:
patent: 2734393 (1956-02-01), Luenberger
patent: 3067627 (1962-12-01), Pickles
patent: 3523599 (1970-08-01), Denkowski
patent: 3742781 (1973-07-01), Boyriven
patent: 3848477 (1974-11-01), Giandinoto et al.
patent: 3972597 (1976-08-01), Repay et al.
patent: 4023430 (1977-05-01), Imamura
patent: 4542814 (1985-09-01), Ledeen et al.
patent: 4652781 (1987-03-01), Andrei-Alexandru et al.
patent: 4699017 (1987-10-01), Periou
patent: 4791831 (1988-12-01), Behnke et al.

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