Headphone device
US6385325B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1999 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Oct 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A headphone device includes first and second head band members, a first fulcrum portion for pivotally supporting top ends of the first and second head band members so that the lower ends of the first and second head band members are moved towards and away from each other, first and second speaker unit supporting members carrying first and second speaker units, and second and third fulcrum portions for pivotally supporting the respective ends of the first and second speaker unit supporting members for rotation towards the lower ends of the first and second head band members. The center axes of rotation of the second and third fulcrum portions extend in a direction substantially perpendicular to the center axis of rotation of the first fulcrum portion. The headphone device also includes ear support portions provided on the first and second speaker unit supporting members that are retained between the head and the auricles of the user when the user attaches the headphone device to the head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.