Anti-lash gear mechanism

Details Anti-lash gear mechanism Anti-lash gear mechanism

1988-08-15

1989-11-21

Herrmann, Allan D.

Machine element or mechanism

Gearing

Rotary bodies

74409, F16H 5518

Patent

active

048814229

ABSTRACT:
An anti-lash gear mechanism is provided to reduce the noise in a gearing system. The anti-lash mechanism has a gear member disposed for rotation axially adjacent one of the power transmitting gears in a gearing system. The anti-lash gear has one more tooth on the periphery than the power transmitting gear and the anti-lash gear is disposed in frictional engagement with the power transmitting gear. When another power transmitting gear meshes with this combination of gears, the anti-lash gear remains in mesh with the drive gear until the next successive gear tooth on the driven gear is engaged. The frictional contact prevents the drive gear from accelerating to engage the drive gear from the driven side. This gear mesh causes the anti-lash gear to rotate relative to the power transmitting gear until complete meshing of the two power transmitting gears is attained. In one embodiment of the invention, a centrifugal mechanism is provided to reduce the frictional engagement at high gear speeds where anti-lash meshes are not required.

REFERENCES:
patent: 1748820 (1930-02-01), Alexandrescu
patent: 2896466 (1959-07-01), Wiseman
patent: 3174356 (1965-03-01), Michalec
patent: 4519264 (1985-05-01), Inui
patent: 4577525 (1986-03-01), Ikemoto et al.

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