E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
160/1
E06B 9/26 (2006.01) E06B 9/302 (2006.01) E06B 9/32 (2006.01)
Patent
CA 1142844
VENETIAN BLIND FP-15,046 ABSTRACT A venetian blind, comprises, a plurality of slats, with a pin extending from either side of each slat and a pair of casings having longitudinal slots for receiving the pins and permitting the longitudinal movement of the slats. The slats are connected by a collapsible ladder support which effects the pivoting of each of the slats as they are extended and retracted. A driven windup shaft is rotatably mounted on the casings and carries a draw member in the form of a chain thereon. An upper carriage part is connected to one end of the draw member. The upper carriage part has a stop surface which is abutable against an end stop to stop the movement of the draw member in one direction. A lower carriage part is slidably connected to the upper carriage part and connected to a lowermost one of the plurality of slats. A compression spring is connected between the upper and lower carriage parts for biasing them apart so that, when the slats are extended to their fullest extent, any overdrive of the windup shaft is absorbed by the spring.
345810
Griesser Holding Ag
Rolston George A.
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