Safety device protecting roller blinds against unrolling

Details Safety device protecting roller blinds against unrolling Safety device protecting roller blinds against unrolling

1977-09-09

1978-11-14

Caun, Peter M.

Flexible or portable closure, partition, or panel

Roll type

With brake or stop

160300, E06B 9208

Patent

active

041251423

ABSTRACT:
A roller blind with a safety device for arresting accidental unrolling of the blind in which a shaft butt is coupled to one end of the winding shaft, a drive disk disposed on the shaft butt, a pawl shaped inertial member pivotally mounted on a pin extending from the drive disk, and a housing having internal teeth, around the disk and inertial member. The inertial member will not change its position relative to the drive disk but with increased unrolling velocity does change its position and the pawl engages the internal teeth of the housing to arrest unrolling of the blind.

REFERENCES:
patent: 201023 (1878-03-01), Lake
patent: 826284 (1906-07-01), Smith et al.
patent: 1709305 (1929-04-01), Brunst et al.

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