Roller construction with a sense of feel for a mobile navigation device
US7164891B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2004 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Jul 14, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2019/146
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Present invention relates to a roller construction with a sense of feel for a mobile navigation device; more particularly, relates to a construction for a mobile navigation device to produce a sense of feel when rolling the roller. Present invention comprises a conductive ring, a plurality of terminals and a support. The conductive ring is a hollow ring of conductive metal and the outer surface can be covered with insulating material. Each of the terminals comprises a contactor and the terminals are connected with the default circuit. Each of the contactor is plugged into the conductive ring to be electrically connected with it. The support comprises two braces, wherein each comprises a cantilever plugged in from each end of the conductive ring to support it. On rolling the conductive ring, regular interferences are made between the terminals and the conductive ring, or between the conductive ring and the cantilever, to produce a sense of feel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.