Manually activated roll-up window shade
AssigneeBOS GmbH & Co. KG
InventorWerner Schlecht
Life of this patent
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Abstract
A roll-up sunroof shade is provided that has two guide rails in addition to the tensioned shade element. A push element runs in each guide rail. Each push element is driven with a positive fit via a separate drive gear. For manual activation of the shade element, the rotational movement of the wind-up shade is transferred to the drive gears, and thus to the push elements, via a gear arrangement. In contrast, during retraction, the force acts from the push elements onto the wind-up shaft via the drive gears in order to generate the necessary rotational movement of the wind-up shaft.
Claims26
A manually actuatable roll-up window shade for a motor vehicle comprising:
- a rotatably supported wind-up shaft having first and second ends;
- a shade element having a first edge fixed to the wind-up shaft;
- a pull rod connected to a second end of the shade element remote from the wind-up shaft;
- two guide rails for guiding the pull rod that extend on opposite sides of the shade element when the shade element is in an extended position;
- two push elements each of which is guided by a respective one of the guide rails, each push element carrying teeth that interact with the pull rod;
- two drive gears arranged at the first and second ends of the wind-up shaft, each drive gear being allocated to a respective one of the push elements, wherein the push elements are operatively arranged between the drive wheels and the pull rod;
- and
- a tensioning mechanism for maintaining tension in the shade element.
Dependencies are inferred from the claim text.