Headphone, electronic device, cord winding device, and cord winding method
US7599509B2 · kind B2 · utility
9Cited by
2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 2005 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Dec 4, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R2103/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An input cord used in a headphone apparatus and an electronic apparatus is wound around a winding device such as a reel, and assembly is facilitated without using jigs when a commutator mechanism relaying to a D/U on the other side through a passage cord is installed. A terminal board including metal slip rings is provided on the side of a lower flange of a reel in left and right headphone housings, and contact points are provided on the side of a housing at a position opposed to the terminal board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.