Anti-falling safety device for a shutter

Details Anti-falling safety device for a shutter Anti-falling safety device for a shutter

1998-07-29

1999-10-26

Purol, David M.

Flexible or portable closure, partition, or panel

Roll type

With brake or stop

49322, E06B 956

Patent

active

059710551

ABSTRACT:
Safety device for vertically openable closures provided with a shutter mounted about a fixed tube (1), includes a fixed disc (10) provided with at least one radial opening (16-17), a movable disc (23) driven in rotation with the shutter, at least one blockage element (25-27) articulated on the movable disc (23) and including a free end (25a) of a shape adapted to be able to penetrate and to become blocked in each radial opening (16-17) of the fixed disc (10), and associated with each blockage element (25-27) resilient elements (32) adapted to permit a pivoting of this latter so as to cause its free end (25a) to become blocked in a radial opening (16-18) when the centrifugal force exceeds a given threshold value.

REFERENCES:
patent: 1842123 (1932-01-01), Rush
patent: 2019085 (1935-10-01), Miller
patent: 3842892 (1974-10-01), Stieler
patent: 4112996 (1978-09-01), Fohl
patent: 4125142 (1978-11-01), Fohl
patent: 4704914 (1987-11-01), Horng
patent: 5494093 (1996-02-01), Eiterman

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