FR2806636A1 - Fire protection is made of a transparent screen rolled around a tube which is integral with a hoist and has sprays for releasing water-repellent or air cooling products - Google Patents

Abstract

Assembly is made of a transparent screen (1) winded around a tube (5) which is integral with a hoist (6). The tube is maintained on position by a ball bearing with a spring. There are sprays (13) along the screen fixing rods, for releasing water-repellent or air cooling products.

Description

The present invention relates to a mobile fire protection device capable of isolating thermal radiation: humans, goods or equipment Traditionally this type of protection is provided by the projection of water carried out by means of a watering system or spray.

This technique requires large cubic meters of water and exposes men, especially in forest fires, to a physical confrontation with the flames.

In addition, it does not provide an effective seal against the hot generated by combustion of inflamed products.

The device according to the invention overcomes these disadvantages.

It has indeed according to a first feature, a translucent curtain or not, automatic vertical deployment from bottom to top.

When placed on the ground, the curtain is held together by a winch, on a support consisting of a tube.

Quick-release stabilizing arms allow the curtain once unwound to remain in a vertical position.

A mechanical action performed by the installer will release the curtain support tube restraints imposed by winding winch, allowing preloaded springs to act on a set of levers to unwind the curtain.

Once unrolled the curtain can be irrigated through a ramp capable of being connected in water to a tanker vehicle or a network.

According to particular embodiments - The curtain may consist of a thermo-formed product, non-woven, woven or mesh.

- The vertical holding system may have at its base a hinge allowing a slight inclination of the deployed curtain - The winch disengagement system may consist of a winding spring coaxial on his or all types of clutch system.

The accompanying drawings illustrate the invention - The board represents the entire device once deployed.

- The board 2 represents the disengageable connection assembly between the curtain support tube and the winding winch.

- Plate 3 shows a simplified diagram of the mechanical frame, including irrigation system.

With reference to these drawings, the device comprises following boards and 3: a curtain (1) translucent or not. At its installation and after rapid deployment of the stabilizing arms (2) by pivoting on their axis (3) by the expansion of a spring (4), the support tube (5) of the curtain becomes instantly disengaged from its winch winding 6), by the action of the operator.

According to Plate 2: The disengagement is achieved by the release of stresses exerted on drive balls (7) held under pressure by a spring (8), thanks to a control (9) actuated indifferently from one or the other of curtain ends.

Next board 3: Once disengaged, the curtain (1) is deployed vertically under the action of levers <B> (<B> 10) propelled by prestressed springs <B> (</ B> 11 acting on their joints (12).

According to a variant not shown, the clutching of the winch (6) can be achieved by the release of stresses exerted on a coaxial winding spring or a friction, clutch or gear system and in a general manner all drive systems. mechanical.

Deployed, the curtain (1) provides real protection to the flames by forcing the hot gases to ignite against the physical barrier it allows to achieve.

Device performance can be improved by adding an irrigation system (13) on two sides.

system (13) can be a spray equipment of water repellents or atmospheric cooling.

The set of arms <B> (</ B> 10) and stabilizers <B> (</ B> 2) supports articulated struts 14) that can be made of a flexible material thus making it possible to increase the maintenance of the device on the ground under the action of the force of the wind by acting on anchoring peaks (15) integral with the stabilizers (2).

As a nonlimiting example, each curtain module will have dimensions of the order of four meters in length for a height of two meters fifty deployed.

The device according to the invention is particularly intended for the protection of people, equipment and property in the face of fire or thermal radiation.

Claims (2)

1) Fire protection device characterized in that it comprises a curtain (1) translucent or not, automatic vertical deployment from above wound on a support tube (5) secured to a winding winch (6) by means of a ball lock (7). 2) Device according to claim 1 characterized by the fact that the support tube (5) of the curtain (1) is instantly disengaged from its winding winch (6) the operator through a control (9) actuated indifferently of one or the other ends of the curtain. Device according to claim 2 characterized in that the declutching system is produced by the release of stresses exerted on drive balls (7) held under pressure by a spring (8) 4) Device according to claim 3 characterized by the fact that the disengagement is achieved by the release of stresses exerted on a coaxial winding spring or by a friction system, clutch or gear and generally by any mechanical drive systems. Device according to claim 1 characterized in that the curtain support assembly comprises an irrigation system (13) Device according to claim 5 characterized in that the irrigation system (13) can be a spray equipment of water-repellent products or cooling of atmosphere. Device according to claim 1 characterized in that all the arms (10) and stabilizers (2) supports articulated struts (14) can be made of a flexible material.