Motorized roll-up device for venetian blinds

Details Motorized roll-up device for venetian blinds Motorized roll-up device for venetian blinds

1996-06-13

1997-12-23

Purol, David M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

160 8402, 160DIG17, 160170R, E06B 930

Patent

active

056998473

ABSTRACT:
Motorized device (2) for rolling up cords or tapes (13, 15) of Venetian or folded blinds, equipped with an automatic stopping device detecting a blockage of the motor. This automatic stopping device consists of a screw (6) carrying a traveling nut (7) rotationally retained in a tubular housing (9). Stoppage of the motor is caused by the detection of a blockage of the motor by the travelling nut (7) rotationally retained in a tubular housing (9). Stoppage of the motor is caused by the detection of a blockage of the motor by the travelling nut (7), or the blind, coming up against the casing. The bottom stopping point is adjusted by unblocking the cage (9) and rotationally driving it.

REFERENCES:
patent: 3049175 (1962-08-01), Fukuoka
patent: 3474761 (1969-10-01), Thomason
patent: 3559024 (1971-01-01), Marder
patent: 3835911 (1974-09-01), Horst et al.
patent: 4856574 (1989-08-01), Minami et al.
patent: 4878528 (1989-11-01), Kobayashi
patent: 5318090 (1994-06-01), Chen
patent: 5396944 (1995-03-01), Rossini

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