Method and apparatus for preventing circumferential separation b

Details Method and apparatus for preventing circumferential separation b Method and apparatus for preventing circumferential separation b

1996-01-24

1997-09-30

Herrmann, Allan D.

Machine element or mechanism

Gearing

Backlash take-up

267155, 464 57, F16H 5712

Patent

active

056716362

ABSTRACT:
The present invention relates to an apparatus for preventing circumferential separation between the meshing teeth of a first gear and a second gear of a gear train. Exemplary embodiments of the invention include a first torque transmitting gear coaxially fixed to the first gear, a second torque transmitting gear in meshing engagement with the first torque transmitting gear, a third torque transmitting gear in meshing engagement with the second torque transmitting gear, and being rotatable about a shaft fixedly connected to a fourth torque transmitting gear which in turn is in meshing engagement with the second gear. The third torque transmitting gear is drivingly connected to the shaft via a pre-loaded resilient element formed by a first torsion spring and a second torsion spring. In an exemplary embodiment, the torsion springs are arranged such that windings of the first torsion spring are located within spaces formed between adjacent windings of the second torsion spring. The pre-loaded resilient element biases the third and fourth torque transmitting gears in opposite rotational directions about the shaft, thereby biasing the first gear and the second gear such that their teeth remain in contact.

REFERENCES:
patent: 976232 (1910-11-01), Tyson
patent: 1950448 (1934-03-01), Heisterkamp
patent: 3396594 (1968-08-01), Walker
patent: 4671129 (1987-06-01), Lovrenich
patent: 4953417 (1990-09-01), Baumgarten et al.
patent: 5357858 (1994-10-01), Guaraldi et al. et al.

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