Tilter mechanisms for a venetian blind
US5341865A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1993 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Apr 7, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/285
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tilt roll and tilt roll mechanism for a venetian blind are disclosed, designed to tilt the ladder laces of a venetian blind. The tilt roll body preferably has an asymmetric cross-section and is provided with bearings engaging bearings on a support and the elongate flexible cords of the ladder lace extend around at least a portion of the periphery of the body, one on each side. The cords are engaged on elements integrally molded to the body and these are each adapted to be engaged by one of the cords, effective to deform and retain the cord. The engaging elements may include a spike which is used to be pierced through a part of the cord, or by resiliently mounted flaps, or by radially outwardly extending jaws. Means are also disclosed for preventing the tilt roll from being rotated more than 360.degree. and the configuration is such as to ensure that the top slat does not become retained by one of the tilt cords as the blind is moved from its closed to its open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.