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US 2008/0073040 A1Published application
Roller blind with undercut-free guide rail
AssigneeBOS GmbH & Co. KG
InventorWerner Schlecht
Life of this patent
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Abstract
A roller blind for motor vehicles is provided that includes guide rails at the sides of the deployed blind sheet. These guide rails contain guide grooves without undercuts. Strip-like actuators are used to transfer the forces between the pull rod and the driving device. The actuators are prevented from buckling perpendicularly to the plane of the blind sheet by the guide rails. Due to their shape, the actuators are prevented inherently, i.e. without external assistance, from buckling parallel to the plane of the blind sheet.
Claims21
A roller blind for motor vehicles comprising:
- a pivotably supported winding shaft having two end faces;
- a blind sheet having a first edge connected to the winding shaft;
- a pull rod connected to a second edge of the blind sheet remote from the winding shaft;
- two guide rails each extending on a respective side of the blind sheet when the blind sheet is an extended position unrolled from the winding shaft, each guide rail including guide groove for guiding the pull rod without any undercuts;
- two strip-like actuators each being associated with a respective one of the guide rails, each actuator running through its respective guide rail and having a rectangular cross-sectional shape corresponding in thickness to a width of the guide groove, each actuator carrying teeth and cooperating with the pull rod;
- and
- two driving gearwheels each being associated with a respective one of the actuators, each of the driving gearwheels being arranged at an end face of the winding shaft;
- wherein the actuators are operatively arranged between the driving gearwheels and the pull rod.
5 more elements
Dependencies are inferred from the claim text.