Speaker and method of assembling the speaker
US6672423B2 · kind B2 · utility
15Cited by
2References
11Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Jul 24, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Sep 20, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a speaker including a voice coil which is wound on a voice coil bobbin and is inserted into a magnetic circuit gap of a magnetic circuit, and a cone which is coupled to the voice coil bobbin for vibration, the cone (16) is constructed of two divided cones: a drive cone (16A) linked to the voice coil bobbin (14) and a cone paper (16B) linked through an edge (17) to a frame (F).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.