Switch unit and portable terminal device using the switch unit
US6680676B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2000 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Jan 27, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H25/041
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Printed boards 31 and 38 are disposed in two layers inside a casing 1, and a selector cursor key and fixer keypad 21 is provided on the cover 2. Selector cursor key switches 34 are provided on the first printed board 31 on the keypad 21 side while a fixer key switch 39 is provided on the second printed board 38. A protrusion portion 21a of the keypad 21 is made to penetrate a through hole 33 of the first printed board 31 so as to face the fixer key switch 39. The selector cursor key switches 34 and the fixer key switch 39 are arranged adjacently to each other in planar view so as to be able to be pushed and operated through one selector cursor key and fixer keypad 21.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.