Mobile navigation device
US7082323B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 17, 2004 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Aug 12, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2019/146
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mobile navigation device including a roller, a support, a plurality of terminals, and a body. The roller including an insulated bushing and a conductive ring. By matching the plurality of protrusions on an inner end surface of the insulated bushing with a plurality of slots on one end of the conductive ring, the conductive ring is plugged inside of the insulated bushing. The support including two braces, wherein each of the braces has a cantilever that is plugged into the conductive ring to sustain the conductive ring and the insulated bushing. The plurality of terminals are plugged into the conductive ring by prestress on the inner surface of the conductive ring, and each terminal extends out of the conductive ring to connect with a default circuit contact. The body includes a plurality of fixture parts and a plurality of raised spots. The whole structure is movable forward, backward, rightward, leftward, and downward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.