Roll-up shade drive with spring motor and reduced drive force
US7762306B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2007 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | May 6, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60J1/2058
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A roll-up window shade for motor vehicle windows is provided that has guide rails running at the side of the extended shade element. A linear push element is provided for each guide rail. Each push element is driven by a separate gear. Therefore, complicated guide tubes, which among other problems generate a lot of friction, are eliminated. A trunk cover has a guide rail on each side of the shade element. For driving the shade element, a push element is provided for each guide rail. The push element is constructed as a non-endless drive element. Each push element is driven by a separate motor and a separate gear. Electrical synchronization of the motors is not provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.