Low backlash-high-torque power transmission system and toothed belt used therein
US4515577A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1982 |
| Grant date | May 7, 1985 |
| Priority date | — |
| Expiry date | Oct 20, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H7/023
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flexible power transmission belt having a plurality of teeth each of which has a pair of arcuate convex flank portions which in longitudinal cross-section closely approximate to an arc of a circle. Each tooth exhibits a height to width relationship within a predetermined range, and the arcuate flanks each have a pressure angle within a predetermined range. The belt is preferably used in combination with a toothed pulley whose teeth are substantially conjugate to the belt teeth and whose cavities between the teeth have a height to width relationship within another predetermined range and have concave flanks exhibiting a pressure angle in still another predetermined range, said belt tooth width being approximately 0.98 of the pulley cavity width so as to provide a high torque positive drive power transmission system having minimum backlash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.