Safety device, in particular for an overhead door

Details Safety device, in particular for an overhead door Safety device, in particular for an overhead door

1985-03-04

1986-08-12

Downey, Kenneth

Movable or removable closures

With safety brake or catch

160193, E05D 1300

Patent

active

046048286

ABSTRACT:
The invention relates to a safety device in particular for an overhead door or the like comprising fastening means for blocking the door which means are operated by an auxiliary cable under tension. The auxiliary cable having a breaking element is on the one hand connected to a reel provided with speed-limiting means for blocking the reel in case the rotation speed becomes beyond certain limits and on the other hand to the door via a lever shaped locking member which cooperates with the fastening means. The fastening means are held in an inoperative position by said locking member, while upon breaking of the breaking element the fastening means are released for blocking the door.

REFERENCES:
patent: 1936269 (1933-11-01), Schaffert et al.
patent: 2064470 (1932-12-01), Heckman

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