Multifunctional pushbutton switch
US6987231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2003 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | Oct 19, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2229/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multifunctional pushbutton switch for a vehicle steering wheel has a plurality of pushbutton switching units that have pushbutton surfaces located close to each other in a shared operating surface. The switch has a shared switch housing in which actuation tappets of the pushbutton switching units are movably guided, and a cap mounted over the actuation tappets and onto the switch housing. The cap is made by means of a two-component injection-molding technique and consists of a relatively rigid plastic frame with recessed windows each of a shape and size that corresponds to the circumference of one of the pushbutton surfaces and of a silicone membrane extending over the recessed windows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.