Antibacklash gears including rack and pinion gears
Patent
·
OSTI ID:7010299
This patent describes a meshing gear construction comprising a first gear having a plurality of fixed teeth extending therefrom. The teeth alternatingly separated by a plurality of roots each having a radial centerline, faces on either side of each fixed tooth, each root being a continuation of a pair of faces of two adjacent teeth, a second gear having a plurality of rollers thereon rotatable relative to the second gear. The rollers meshing with the fixed teeth of the first gear. The meshing comprising rolling contact of at least two rollers with one first gear fixed tooth at all instants of motion. Wherein the rollers comprise cylindrical rollers and the faces of the fixed teeth comprise circular arcs in profile and wherein a radial centers of fixed tooth circular arc face lies outside a pitch circle of the first gear and between the circular arc face and the radial centerline of an adjacent root.
- Assignee:
- NOV; NOV-90-002691; EDB-90-067560
- Patent Number(s):
- US 4879920; A
- Application Number:
- PPN: US 7-037532A
- OSTI ID:
- 7010299
- Country of Publication:
- United States
- Language:
- English
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