Adjustable hanging-type earphone
US6363158B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 2001 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Aug 22, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/05
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An adjustable hanging-type earphone, comprising a main unit fixed with a speaker seat, a slide unit serving to mount on the user's ear, and a spring wire for better fastening purpose of the earphone. Inside the main unit is a fixing shaft and a positioning shaft, which are inserted in the fixing hole and positioning slot on the top of the slide unit. The spring wire is attached to the top of the main unit. Thereby using the fixing shaft and fixing hole on the main unit as a pivot, and the positioning shaft and positioning slot as a freely adjustable fastening device, the position of the slide unit can be adjusted in relation to the main unit, to form an appropriate circle of tightness around the user's ear. The freely bendable spring wire is used to wind around the user's head or neck to aid the positioning purpose of the earphone on different sizes of the user's ear, to effectively upgrade its applicability and enhance wearing comfort.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.