Window shade

Details Window shade Window shade

E - Fixed Constructions

06

B

E06B 9/56 (2006.01) E06B 9/50 (2006.01) E06B 9/90 (2006.01)

Patent

CA 2139036

A window shade, in which a winding shaft, which is rotatably mounted with its ends on stationary pivot pins, can be coupled with a drive member at one of its ends. At least one rolling body is arranged in a recess, which is wedge-shaped in the circumferential direction, between an inner jacket surface of a sleeve projection (9), which is rigidly mounted on the pivot pin (5), and an outer jacket surface of a sleeve projection (3), which is rigidly mounted on the winding shaft. The rolling body acts as a locking member and is clamped in the wedge-shaped recess and can be released from the clamped position by means of an opening element movable by the drive member in the direction of rotation.

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