Toothed belt
US4518375A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1983 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Jan 25, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G1/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A drive belt (10) having an elongated body (11) provided with tensile cords (12). The belt is provided with teeth, or cogs, (13) and a two-ply reinforcement is provided on the surface of the teeth, or cogs, including an inner layer (15) and an outer layer (17). The inner layer is formed of parallel yarn, or twine, elements (16), which may be spirally wrapped to extend in the longitudinal direction of the belt. The outer layer is formed of a woven or knit cloth, and in the illustrated embodiment, is formed of a sailcloth having a highly elastic warp extending in the longitudinal direction of the belt and an inelastic weft for providing improved transverse rigidity and strength. The first layer yarn (16) and second layer warp (19) preferably have a ductility of greater than 50%. A number of candidate materials for the high ductility yarns is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.