Direction detection switch
US7852321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2005 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Nov 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/233
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to provide a direction detecting switch which can detect a key operation in every directions of 360 degree, can obtain an accurate click feeling, and can also detect a strength or a speed of the key operation.A direction detecting switch is comprised of a determining key arranged in a center portion; a ring key arranged so as to surround said determining key; a movable electrode arranged so as to be operative in accordance with an operation of the ring key; a fixed electrode arranged so as to face to said movable electrode; and a click operation body arranged in correspondence to said determining key, wherein a key top of said determining key and a ring key top of the ring key are arranged so as to be fixed onto a sheet-like rubber elastic member, wherein said click operation body is pressed in accordance with an operation of the determining key so as to open and close the contact point and is formed as a structure generating a click feeling, and wherein said click operation body is formed as a structure which detects a change of an electrostatic capacity generated between the movable electrode and the fixed electrode and converts the change in…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.