Operating element and method for the production thereof
US8491827B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2010 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jul 10, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for producing a flexible, three-dimensional coating structure with a surface curvature on the front side and an impression on the rear side for a flexible switch or a flexible user interface. The method is essentially characterized by the following steps: introducing an uncured, transparent casting compound into a compression mold with an impression that forms the shaping of a surface curvature; introducing a counterpunch that penetrates at least partially into the impression, so that the casting compound is distributed in the gap between the shaping of the surface curvature of the compression mold and the surface of the counterpunch and fills this gap; introducing energy into the casting compound, so that the casting compound cures to form a substantially self-supporting, flexible, transparent surface layer with a surface curvature on the front side and an impression on the rear side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.