Transmission V-belt and manufacturing method therefor
US11624421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2018 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Jul 14, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G5/20
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided is a power transmission V-belt containing: a rubber layer; a cord buried in the rubber layer along the belt circumferential direction; and at least one reinforcing layer buried in the rubber layer, in which the reinforcing layer contains reinforcing fiber filaments having the same length as a belt width; and contains no fibers intersecting with the belt width direction, or contains the fibers intersecting with the belt width direction in a weight per unit area of 30% or less of the reinforcing fiber filaments, in which the reinforcing layer has a structure in which the reinforcing fiber filaments are in a non-twisted state, are oriented in the belt width direction, and are spread and bonded in a sheet shape, and in which the reinforcing layer has a thickness of 0.05 mm to 0.5 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.