Rack and pinion teeth configuration

Details Rack and pinion teeth configuration Rack and pinion teeth configuration

1978-05-24

1980-09-16

Braun, Leslie

Machine element or mechanism

Gearing

Teeth

74410, 74422, 74462, F16H 5508

Patent

active

042222826

ABSTRACT:
The present invention relates to the gear configuration between a pinion and a rack. The pinion forms a plurality of teeth which are received in respective grooves on the rack. The teeth each define a pair of flanks which oppose a pair of surfaces within the groove and the flanks and surfaces substantially define circular arcs. The radius of curvature of the circular arc for the surfaces is slightly larger than the radius of curvature of the circular arc for the flanks. A separating force is generated between the pinion and the rack when rotation of the pinion imparts transverse movement to the rack and the circular arcs of matching surfaces and flanks cooperate to substantially eliminate the separating forces after slight separation between the pinion and the rack.

REFERENCES:
patent: 3180172 (1965-04-01), Leggatt
patent: 3267763 (1966-08-01), Merritt
patent: 3371552 (1968-03-01), Soper
patent: 3753378 (1973-08-01), Bishop

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