FR2492447A1

FR2492447A1 - Double-walled strong box or safe with a cavity filling - of cast rubber:filled polyurethane to resist thermal changes

Info

Publication number: FR2492447A1
Application number: FR8020540A
Authority: FR
Inventors: Jean-Michel Brunner; Daniel Deschamps
Original assignee: Fichet Bauche SA
Current assignee: Fichet Bauche SA
Priority date: 1980-09-24
Filing date: 1980-09-24
Publication date: 1982-04-23
Also published as: FR2492447B1

Abstract

A strong box comprises a double walled metal chamber with the space between the walls filled with a cast plastic or rubber matl. adhering to the metal walls and resistant to penetration by a thermal lance. Pref. the cast material is selected for a combination of toughness and heavy smoke generation when scorched, specifically is of polyurethane resin filled with chopped rubber. Barriers to mechanical drilling, e.g. curtains of metal netting or mesh, may be included at intervals across the cast section. The faces of the box may have added protection comprising e.g. steel plates or reinforced concrete slabs.

Description

Les coffres-forts doivent satisfaire à de multiples conditions : d'une part, ils doivent résister à des attaques mécaniques (perçage, percussion) et à des attaques thermiques (chalumeau, etc.) ; d'autre part, il importe que certains de leurs types soient d'un prix suffisamment bas pour qu'ils puissent Qtre à disposition de nombreux usagers. Safes must meet multiple conditions: on the one hand, they must resist mechanical attack (drilling, percussion) and thermal attack (blowtorch, etc.); on the other hand, it is important that some of their types are of sufficiently low cost that they can be made available to many users.

Le composant de coffre-fort selon l'invention permet la fabrication simple, et en conséquence à faible prix de revient, de coffres-forts de types divers, adaptés à différents domaines d'utilisation. The safe component according to the invention allows simple manufacturing, and consequently at low cost, of safes of various types, adapted to different fields of use.

Il est caractérisé par ce fait qu'il est constitué par un réceptacle métallique à double paroi avec une face ouverte, l'intervalle entre les deux parois étant garni par une matière plastique et/ou élastique, avantageusement amenée par coulée, les deux parois jouant ainsi le rôle de moule. It is characterized by the fact that it consists of a double-walled metal receptacle with an open face, the gap between the two walls being lined with a plastic and / or elastic material, advantageously brought in by casting, the two walls playing thus the role of mold.

L'adhésion de la matière plastique et/ou élastique à l'une et à l'autre des parois, sa cohésion sont favorables à la résistance à l'égard d'une attaque, en rendant très difficile son élimination. The adhesion of the plastic and / or elastic material to one and the other of the walls, its cohesion are favorable to resistance with respect to an attack, making its elimination very difficult.

La mise en place préalable, dans l'intervalle de moulage limité par les deux parois, d'armatures métalliques et/ou de grains durs, confère au composant de bonnes qualités de résistance à l'égard de la traversée par un outil d'attaque. The prior installation, in the molding interval limited by the two walls, of metallic reinforcements and / or hard grains, gives the component good qualities of resistance with regard to the crossing by an attack tool .

La matière plastique et/ou élastique est choisie pour dégager de la fumée lors d'une attaque thermique. The plastic and / or elastic material is chosen to give off smoke during a thermal attack.

Un tel composant peut dtre facilement combiné à d'autres composants de coffres-forts choisis en vue de l'utilisation particulière prévue : plaques d'acier, plaques de béton, etc. Such a component can be easily combined with other components of safes chosen for the particular intended use: steel plates, concrete plates, etc.

Dans la description qui suit, faite à titre d'exemple, on se réfère aux dessins annexés dans lesquels
- la figure 1 est une vue schématique en coupe verticale
- la figure 2 est une vue schématique en coupe horizontale correspondante, à plus petite échelle.In the description which follows, given by way of example, reference is made to the appended drawings in which
- Figure 1 is a schematic view in vertical section
- Figure 2 is a schematic view in corresponding horizontal section, on a smaller scale.

Sur un support 11, on dispose un cadre métallique 12 rectangulaire à section transversale en forme de Z propre à constituer la feuillure de la porte d'un coffre-fort. Du bord interne 13 du cadre 12 dépend un bottier parallélépipédique 14 à parois verticales parallèles 15 et 16, parois verticales 17 et 20 perpendiculaires aux précédentes, et paroi horizontale supérieure 18. Du bord externe 19 du cadre 12, dépend un bottier parallélépîpédique 10 à parois verticales 21 et 22 parallèles aux parois 15 et 16, et parois verticales 23 et 24 parallèles aux parois 17 et 20. On a support 11, there is a rectangular metal frame 12 with a Z-shaped cross section suitable for forming the rebate of the door of a safe. From the internal edge 13 of the frame 12 depends a parallelepipedic shoemaker 14 with parallel vertical walls 15 and 16, vertical walls 17 and 20 perpendicular to the preceding ones, and upper horizontal wall 18. From the external edge 19 of the frame 12, depends a parallelepipedic shoemaker 10 with walls vertical 21 and 22 parallel to walls 15 and 16, and vertical walls 23 and 24 parallel to walls 17 and 20.

Les parois 15, 16, 17, 20 d'une part, et 21, 22, 23, 24 d'autre part, définissent un intervalle annulaire 25. Dans ledit intervalle, on dispose des armatures comme schématisées en 261, 262, 263, 264. The walls 15, 16, 17, 20 on the one hand, and 21, 22, 23, 24 on the other hand, define an annular interval 25. In the said interval, there are reinforcements as shown diagrammatically at 261, 262, 263, 264.

Ces armatures peuvent autre constituées par des fils, des barres, entrecroisées ou non. These reinforcements can further consist of wires, bars, crossed or not.

Sur la paroi supérieure 18 du bottier 14, on dispose également un ou plusieurs lits d'armature 27. On the upper wall 18 of the shoemaker case 14, there are also one or more reinforcing beds 27.

Dans l'intervalle 25, on coule une matière durcissable, avantageusement à base d'un élastomère ou d'une autre résine, notamment d'une résine polyuréthane chargée de granulés de caoutchouc. La coulée est poursuivie jusqu'au niveau des arêtes horizontales supérieures 28 des parois 21, 22, 23, 24. La matière coulée noie ainsi les armatures 26 et 27. In the interval 25, a curable material is poured, advantageously based on an elastomer or another resin, in particular a polyurethane resin loaded with rubber granules. The casting is continued up to the level of the upper horizontal edges 28 of the walls 21, 22, 23, 24. The cast material thus drowns the reinforcements 26 and 27.

On met en place sur les arêtes horizontales supérieures des parois verticales 21, 22, 23, 24 une paroi horizontale supérieure 29. An upper horizontal wall 29 is put in place on the upper horizontal edges of the vertical walls 21, 22, 23, 24.

On laisse stopérer le durcissement de la matière coulée. The hardening of the cast material is allowed to stop.

On obtient un composant parallélépipédique de coffrefort dont tous les éléments sont solidaires les uns des autres, ouvert sur une face suivant un orifice bordé par une feuillure, à paroi citerne métallique et à paroi externe métallique, l'intervalle entre les parois interne et externe étant garni d'une matière plastique et/ou élastique noyant des arma tures de renforcement, la matière plastique et/ou élastique étant adhérente tant i la paroi interne qu'à la paroi externe et formant une couche épaisse dont l'élimination est très difficile. A parallelepipedic component of a safe is obtained, all of the elements of which are integral with one another, open on one face along an orifice bordered by a rebate, with a metallic tank wall and a metallic outer wall, the interval between the inner and outer walls being lined with a plastic and / or elastic material embedding reinforcements, the plastic and / or elastic material being adhered to both the inner wall and the outer wall and forming a thick layer whose removal is very difficult.

Un tel composant entre avantageusement dans la constitution d'un coffre-fort. Il forme un réceptacle qui peut comporter sur ses diverses faces externes un revatement en plaques d'acier ou bien un revêtement 30 en béton, lequel peut aussi etre obtenu par coulée, ou bien les deux. Such a component advantageously enters into the constitution of a safe. It forms a receptacle which can have, on its various external faces, a covering made of steel plates or else a concrete covering, which can also be obtained by casting, or both.

On peut ainsi fabriquer facilement et rapidement des coffres-forts répondant à divers desiderata de la pratique et cela à un prix réduit. One can thus easily and quickly manufacture safes meeting various desiderata of the practice and that at a reduced price.

Claims

REV3ISDICAXIONS

1. Safe component, characterized in that it consists of a parallelepiped receptacle open on one side and with a double metal wall, the space between the walls being lined with a plastic and / or elastic material suitable for s oppose thermal attacks and piercing, adhering to both the inner wall and the outer wall of the component due to its being brought by pouring in the liquid state and its subsequent hardening.

20 Safe component according to claim 1, characterized in that the open face of the receptacle is in the configuration of the door rebate.

3. Safe component according to claim 1, characterized in that in the hardened material interposed between the two walls are embedded elements opposing the crossing by a mechanical tool.

4. Safe component according to claim I, characterized in that the cast material is based on polyurethane resin.

5. Safe, characterized in that it comprises, as a constituent part, a component as according to one of claims 1 to 4.

6. Safe according to claim 5, characterized in that the external faces of the component are joined together with steel plates.

7. Safe according to claim 5, characterized in that the external faces of the component are joined to the concrete.

8. A method of manufacturing a component according to one of claims 1 to 4, characterized in that, on a support, an internal parallelepiped boot and an external rectangular boot intended to form the two walls of the component are put in place, the outer boot being however open at its upper part, in that a hardenable compound is poured in the interval limited by the boot makers, in that a top wall is placed closing the orifice of the outer boot maker, and in which is allowed to harden the cast compound.

9. The manufacturing method according to claim 8, characterized in that before pouring, the gap between the two shoemakers is filled with elements of mechanical resistance.