Switch device
US7592554B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2008 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Dec 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spherical portion of a shaft is provided with engagement projection portions at two locations to be arranged by intervals of 90° in the rotational circumferential direction and there is provided a guide portion including limiting faces for being engaged to the engagement projection portions to lock a swing motion of the shaft and release recessed portions for releasing the engagement of the engagement projection portions at a switch operational position where the operational knob is rotated to allow an operation of the inclination motion by the operational knob in a plane direction due to the swing of the shaft. This construction thus prevents the operation of the inclination motion by the operational knob when the operational knob is at a neutral position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.