Motor with worm reduction gear

Details Motor with worm reduction gear Motor with worm reduction gear

1992-05-26

1993-05-25

Herrmann, Allan D.

Machine element or mechanism

Gearing

Directly cooperating gears

384223, 384245, F16H 116

Patent

active

052129993

ABSTRACT:
In the motor with the worm reduction gear, wherein a worm is provided at an end portion of a rotary shaft, a worm wheel is in meshing engagement with the worm and rotation of the rotary shaft is reduced in speed and transmitted to load, such an arrangement is adopted that a first damper and a second damper, which are different in elasticity from each other, are provided at end portions in the axial direction of the rotary shaft, and, at an initial stage where the thrust force from the rotary shaft is low, only the elastic force of the first damper lower in elasticity acts on the rotary shaft and, at a stage where the thrust force becomes high, both the elastic forces of the first damper and the second damper act on the rotary shaft.

REFERENCES:
patent: 4026163 (1977-05-01), Merkert
patent: 4452541 (1984-06-01), Carpenter
patent: 4790202 (1988-12-01), Hayashi et al.
patent: 4885948 (1989-12-01), Thrasher, Jr. et al.
patent: 4993277 (1991-02-01), Adam et al.

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