Multiple blinds controlling arrangement on building openings

摘要

The arrangement has blind motors operated by two relays (38) each, connected to electronic chips (34,36), and functioning by operation of touch switches (23). The relay contacts (40,42) drive the blind motors open and closed respectively, and the common contacts (44), of the first relay switches (40), are connected to the mains supply and those (50) of the second relay switches (42) to the "off" contacts (47) of the first relay switches. The "on" contacts (52) of the second relays and those (46) of the first relays are connected to the blind drive motors. The cyclic operation of the touch switches is achieved by flip-flop and AND gate chips.