Annular metal cord and endless metal belt
US7775028B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 9, 2006 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Dec 11, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12333
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An annular metal cord includes an annular core portion and an outer layer portion. The annular core portion is formed by connecting together both ends of a first strand material which is made up of six twisted first metal filaments. The outer layer portion is formed by winding spirally a second strand material which is made up of six twisted second metal filaments around the annular core portion. The second strand material is wound at a predetermined winding angle relative to a center axis of the annular core portion, and a winding initiating end portion and a winding terminating end portion are connected together. As a result, the breaking strength of the annular metal cord can be made large, and the production thereof can be facilitated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.