Flexible or portable closure – partition – or panel – Hanging or drape type – Motor operating means or electric or fluid pressure control
Patent
1986-01-09
1987-08-04
Machado, Reinaldo P.
Flexible or portable closure, partition, or panel
Hanging or drape type
Motor operating means or electric or fluid pressure control
160123, 160168R, A47H 502
Patent
active
046839356
ABSTRACT:
A motor-driven curtain-operating unit for horizontally slidable curtains or the like comprises an elongate support (2) forming a channel (3) having two channel sections (3a, 3b) laterally separated by a longitudinally extending central wall, each channel section (3a, 3b) housing a respective run of a closed loop chain (4) one end of which loop passes over a sprocket (5) driveable by a remotely controllable motor (6) and the other end of which passes over a pair of return rollers (20) at the other end of the elongate support (2) from the motor (6). Curtain displacement carriages (10), attachable to a movable edge of a curtain, are slidable in the channels (3a, 3b), and each incorporates a sleeve portion (11) through which the chain (4) can pass to form a connection between the chain (4) and the carriage (10). A resiliently biased pin (13) projects into the sleeve (11) and forms an interconnection between the carriage (10) and the chain (4) which can be overcome to allow relative slip between the carriage (10) and the chain (4) if the force between them exceeds a certain threshold value such as if there is an obstruction to curtain movement or if the curtain has reached the end of its movement and the motor (6) is still energized.
REFERENCES:
patent: 1818786 (1931-08-01), Bond
patent: 2564995 (1951-08-01), Rakeman
patent: 3507317 (1970-04-01), Bratschi
patent: 4227564 (1980-10-01), Bratschi
patent: 4425956 (1984-01-01), Terlecke
patent: 4519433 (1985-05-01), Corneau
patent: 4552195 (1985-11-01), Durig
Lieberman Cherney S.
Machado Reinaldo P.
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