AN APPARATUS FOR SIMULTANEOUSLY CLOSING AND OPENING A GROUP OF BLINDS

摘要

In a group of blinds each blind consists of a number of thin slats suspended from a horizontal shaft. The slats are attached to cords fixed to the shaft and the slats are turnably adjustable by rotating the shaft, which is connected to both a hand-operated mechanism and automatic drive unit. Said automatic drive unit is provided with a torque limiting device. Moreover, a timing device is connected to said drive unit for all blinds in the group for automatic actuation of all said drive units at determined points of time and setting of the slats in all blinds to closed or open position irrespective of their existing position set by said hand-operated mechanism.