E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 9/326 (2006.01) E06B 9/324 (2006.01)
Patent
CA 2299030
A cord control device includes a mounting seat mounted removably in a horizontal top housing, from which a plurality of horizontal slats are suspended downwardly one above another. A bottom rail is disposed below the slats. Each of two control cords passes through the top housing and through the slats, and has a first end portion fastened to the bottom rail, and a second end portion which extends out of the top housing. An elongated rack is disposed in a roller-mounting space in the mounting seat. A pair of stationary rollers are journalled in the roller- mounting space one above the other proximate to the elongated rack and are passed slidably over by the second end portions of the control cords, respectively. A movable pinion is disposed movably in the roller-mounting space, and is passed slidably over by the second end portions of the control cords. The pinion is movable in the roller-mounting space to a first position, where the control cords can slide over the pinion to permit raising and lowering of the slats, and a second position, where the pinion is clamped between the rack and one of the stationary rollers so that the control cords are clamped between the pinion and one of the stationary rollers.
Gowling Lafleur Henderson Llp
Huang Tai-Long
LandOfFree
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