Frame for speaker device and speaker device
US7331420B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 16, 2006 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Jul 11, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- 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, a substantially 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. Each of the plural arm portions has a sectional shape of a one-open-end shape having a connected end and an open end, and the plural arm portions include an arm portion having the open end oriented to one direction and an arm portion having the open end oriented to a direction opposite to the one direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.