FR2837858A1 - Opener with exterior access for door with panic bar comprises hook connected to lever that can be turned by fireman's key - Google Patents

Abstract

The door opener consists of a hook (4) connected to the panic bar release mechanism (5) at one end and to a lever (3) at the other that can be turned from the outside of the door by a fireman's key.

Description

locking of the closure (8) fixed to the ground for the deployed position and for

the folded position.

l

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  The present invention sets out a device for opening from the outside, fire-resistant doors

  of a panic bar giving access to emergency exits in the event of a fire, or any other case

  requiring the intervention of authorized persons.

  The opening of these doors being possible only on the side fitted with a panic bar by the users, or on the opposite side using a key, the device according to the invention allows in the event of emergency, immediately release the panic bar from the door, without destroying it, and thus gain access

  faster at the place of intervention.

  In reality, during a firefighters intervention for a declared fire in a building, it is not uncommon to see that after their passage, the emergency door giving access to the emergency staircase

  was destroyed to gain access to the landing where the fire broke out.

  This device which can be considered as a safety device, consists in adding to the anti-bar

  panic on the outside of the door, on the fire escape side, a usable mechanical element

clusively mournfully.

  So, you just have to give a quarter turn using a key (which the firefighters already have

  in their equipment) to the threshing machine adapted to the panic bar to release the latter.

  Depending on the embodiment of the instantaneous opening command:

  -The threshing bolt will be pierced at its end.

  -The thresher will be installed inside the panic bar after piercing the bottom

for the passage of the follower.

  -The drive movement of the opening mechanism will be done using a hook set

  place on the end of the bolt as well as on the axis of the opening mechanism of the panic bar.

  The realization photos illustrate the invention:

  The photo N l represents the panic bar.

  Photo N 2 represents the piercing of the bottom of the panic bar for the passage of the follower.

  Photo N 3 represents the assembly (mechanism, thresher fire engine, and hook)

  Photo N 4 represents the position of the drive hook on the axis of the opening mechanism.

  ture. Particular care will be taken for the length of the hook return to avoid disengagement

  of it when users push on the panic bar.

  Photo N 5 illustrates the final location of the fire engine thresher, the hook

  -tranement on the mechanis me of the anti-pan i bar.

  Photo N 6 shows the location of the rosette and the key to use if necessary.

  Photo N 7 shows a top view before the action of the immediate opening movement of

the panic bar.

  Photo N 8 shows the opening of the panic bar using the key.

  The device referred to in the illustrations can independently be adapted to one of the two opening mechanisms of the panic bar, and the bar release hook can

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  also be lengthened by a few centimeters.

  The device according to the invention allows firefighters in emergency situations, and in the event of a fire, to gain immediate access to the intervention site without destroying the fire door, which must itself conti

  to do, which is why it was designed.

  The device according to the invention is particularly intended to facilitate the intervention of firefighters,

  in the event of a fire, and emergency rescue services, in the event of an elevator failure.

Claims (3)

  1) Device available for immediate opening from the outside of fire doors   equipped with a panic bar (photo 1), giving access to the emergency exits in case of   fire or any other case requiring the intervention of firefighters or any other authorized person, characterized in that it comprises a process (photo 2) designated by a fire engine thresher (3) and a hook (4) attached to the mechanism d opening (5) of the panic bar. 2) Device according to claim 1 characterized in that the panic bar (photo 2) is pierced in its bottom as well as the fire door, to allow the passage of firefighters key actuating the opening movement by exerting a rotation d 'a quarter of tower.   3) Device according to claim 1 characterized in that a hook actuated by the rotary movement of the fire engine thresher (3) tends to pull the axis of the mechanism of the