Frame for speaker device and speaker device
US7720248B2 · kind B2 · utility
5Cited by
4References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 17, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Mar 20, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A frame for a speaker device includes a magnetic circuit housing unit which houses a magnetic circuit, an annular outer peripheral portion which is arranged on an outer side of the magnetic circuit housing unit, and plural arm portions which connect the magnetic circuit housing unit and the outer peripheral portion. The plural arm portions form such plural bridges that a pair of the arm portions are linearly positioned to connect two parts of the outer peripheral portion, and each of the bridges does not pass through a center of the outer peripheral portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.