Friction transmission belt, cord for same, and manufacturing method for same
US11879520B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Nov 12, 2018 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Sep 6, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2401/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention pertains to a friction transmission belt that includes a core cable. The core cable includes a cord comprising: a core yarn containing high elastic-modulus fibers; and a plurality of sheath yarns that are disposed around the core yarn and that contain low elastic-modulus fibers. The cord is twisted and the proportion of the average diameter of the sheath yarn to the average diameter of the core yarn is 0.2 to 0.4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.