EP0172065B1 - Protection device for drilling tools, and composite wall comprising such a device - Google Patents

Protection device for drilling tools, and composite wall comprising such a device Download PDF

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Publication number
EP0172065B1
EP0172065B1 EP85401408A EP85401408A EP0172065B1 EP 0172065 B1 EP0172065 B1 EP 0172065B1 EP 85401408 A EP85401408 A EP 85401408A EP 85401408 A EP85401408 A EP 85401408A EP 0172065 B1 EP0172065 B1 EP 0172065B1
Authority
EP
European Patent Office
Prior art keywords
grating
balls
aforesaid
support
boxes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85401408A
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German (de)
French (fr)
Other versions
EP0172065A1 (en
Inventor
Daniel Louis Alfred Gicquel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fichet Bauche SA
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Fichet Bauche SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fichet Bauche SA filed Critical Fichet Bauche SA
Priority to AT85401408T priority Critical patent/ATE30180T1/en
Publication of EP0172065A1 publication Critical patent/EP0172065A1/en
Application granted granted Critical
Publication of EP0172065B1 publication Critical patent/EP0172065B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
    • E05G1/00—Safes or strong-rooms for valuables
    • E05G1/02—Details
    • E05G1/024—Wall or panel structure

Definitions

  • the present invention essentially relates to a device for protecting against perforating tools, for example in the form of diamond crowns.
  • the balls used were of a relatively small diameter.
  • they were distributed in the wall in a somewhat random manner and they had a certain degree of freedom in the horizontal plane, so that they could not play the role of an effective barrier to the perforating tools having large diameters.
  • DE-A-2525738 also discloses a device in accordance with the preamble of claim 1.
  • the balls are each housed in a blind hole in a plate, the diameter of the holes being slightly greater than that of the balls, the holes being arranged next to each other.
  • the object of the present invention is in particular to remedy the above problems by proposing an improved device for protection against attack with piercing tools, this device being remarkably effective, in particular by the fact that the balls are incorporated and distributed in the wall in a very particular way so as to ideally resist attacks by large diameter perforating tools.
  • the subject of the invention is a device for protecting against perforating tools, such as for example coring tools, and of the type comprising a support provided with balls incorporated and mounted for free rotation in this support, characterized in that that said support is constituted by at least one grid, the openings of which ensure the positioning and / or fixing of closed boxes, each containing a ball. All of the ball cases forming a regular checkerboard configuration in this support.
  • the aforementioned grid is secured to a base plate by means of fixed spacers, for example welded, both on the grid and on said plate.
  • a second grid is fixed on these spacers and cooperates with the aforementioned base plate to position the ball housings between this second grid and said plate.
  • the boxes containing the balls have tabs, projections or the like ensuring their attachment to the grid cited in the first place and constituting the support.
  • the closed boxes containing the balls have a circular or polygonal section and can form a single piece or else each comprise a body and a cover.
  • the spacers are constituted by sheets welded by their edges on the base plate and on the grids.
  • the diameter of these balls is preferably close to 30 millimeters, while the distance between the axes of two adjacent balls along a diagonal is between approximately 40 and 60 millimeters.
  • the invention also relates to a composite wall provided with a device according to one of claims 1 to 8, characterized in that said device is added a flowable material, such as for example concrete, or synthetic rubber.
  • a wall 1 equipped with a protection device essentially comprises balls 2 mounted for free rotation in this wall while being firmly held in the horizontal plane.
  • each ball 2 is housed in a closed housing 3 which is made of a suitable material, such as for example a plastic material.
  • the balls 2 can rotate freely in their respective housings 3.
  • the housings 3 are embedded and positioned in the openings 4 of a grid G which, according to the embodiment shown, is formed by metallic wires 5 interlaced perpendicularly to one another. 'other.
  • the side wall of the boxes 3 has lugs, projections or the like 6 which are clearly visible in FIG. 1 and which allow the boxes 3 to be hooked onto the metal wires 5 of the grid G.
  • the set of closed boxes 3 forms a regular checkerboard configuration in the grid, as shown in A, B, C, D, E and F.
  • the grid G is integral with a base plate 7 by means of spacers 8 fixed both on the grid G and on the base plate 7. More specifically, the spacers 8 are constituted by metal sheets welded by their edges on the base plate 7 and on the grid G as shown respectively in 9 and 10 in FIGS. 1 and 2.
  • the housings 3 can be made in one piece, forming a cage for the balls 3, or can be made in two parts, as shown in the figures, and namely a body 3a and a cover 3b.
  • the boxes 3 may have in cross section a circular shape, or else a polygonal shape, such as square for example, if the openings 4 of the grid G are square.
  • a housing 3 which has a square shape, while the housing 3 which is on the same line and to the left of the housing square, has a circular shape.
  • the housing 3 remains firmly positioned in the plane through the openings of the grid G, as does the ball 2 which is contained therein and which rotates freely in the said housing.
  • the diameter of the balls 2 is preferably close to 30 millimeters. As for the distance d between the axes of two adjacent balls 2 along a diagonal, as can be seen in FIG. 2, it is preferably between approximately 40 and 60 millimeters.
  • a flowable material 14 such as for example concrete or synthetic rubber, is added to the assembly described above.
  • the whole assembly is embedded in this material with the exception of the balls 2 enclosed in their housings 3 so that they are always free to rotate in said housings.
  • a composite wall 1 has therefore been produced according to the invention which can, for example, be fitted to a safe and which comprises balls positioned in a checkerboard configuration and firmly held in the horizontal plane by virtue of the housings 3 which contain them and which are hung in the openings of the G lamp.
  • a wall has therefore been produced according to the invention internally provided with an arrangement of very specific means and combined in a very special configuration, so that said wall constitutes an extremely effective barrier to the penetration of perforating tools, and in particular diamond crowns. having a large diameter.

Landscapes

  • Finishing Walls (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Earth Drilling (AREA)

Abstract

1. Device for protection against perforating tools such for instance as coring tools and of the type comprising a support fitted with balls (2) incorporated and mounted for free rotation in this support, characterized in that the said support consists of at least one grating (G) the openings of which ensure the positioning and/or the fastening of closed boxes (3) containing each one a bal (2).

Description

La présente invention a essentiellement pour objet un dispositif de protection contre les outils perforants revêtant par exemple la forme de couronnes diamantées.The present invention essentially relates to a device for protecting against perforating tools, for example in the form of diamond crowns.

Elle vise également une paroi composite munie de ce dispositif.It also relates to a composite wall provided with this device.

On a déjà proposé d'incorporer dans une paroi de coffre-fort par exemple des billes qui, sous l'effet d'une effraction à l'aide d'un outil perforant, se mettent en rotation de sorte que l'énergie cinétique de l'outil sera avantageusement absorbée par le roulement des billes empêchant ou retardant ainsi une pénétration ultérieure de l'outil dans la paroi du coffre.It has already been proposed to incorporate into a wall of a safe for example balls which, under the effect of a break-in using a perforating tool, are set in rotation so that the kinetic energy of the tool will advantageously be absorbed by the rolling of the balls preventing or delaying subsequent penetration of the tool into the wall of the trunk.

Toutefois, les billes utilisées étaient d'un diamètre relativement petit. De plus, elles étaient réparties dans la paroi d'une manière quelque peu aléatoire etelles possédaient un certain degré de liberté dans le plan horizontal, de sorte qu'elles ne pouvaient pas jouer le rôle d'un barrage efficace aux outils de perforation ayant des diamètres importants.However, the balls used were of a relatively small diameter. In addition, they were distributed in the wall in a somewhat random manner and they had a certain degree of freedom in the horizontal plane, so that they could not play the role of an effective barrier to the perforating tools having large diameters.

On connaît par ailleurs du DE-A-2525738 un dispositif conforme au préambule de la revendication 1. Dans ce dispositif les billes sont logées chacune dans un trou borgne d'une plaque, le diamètre des trous étant légèrement supérieur à celui des billes, les trous étant disposés les uns à côté des autres.DE-A-2525738 also discloses a device in accordance with the preamble of claim 1. In this device, the balls are each housed in a blind hole in a plate, the diameter of the holes being slightly greater than that of the balls, the holes being arranged next to each other.

La présente invention a pour but notamment de remédier aux problèmes ci-dessus en proposant un dispositif perfectionné de protection contre les attaques avec des outils perforants, ce dispositif étant d'une efficacité remarquable, notamment par le fait que les billes sont incorporées et réparties dans la paroi d'une manière très particulière de façon à résister d'une manière idéale aux attaques des outils perforants de grand diamètre.The object of the present invention is in particular to remedy the above problems by proposing an improved device for protection against attack with piercing tools, this device being remarkably effective, in particular by the fact that the balls are incorporated and distributed in the wall in a very particular way so as to ideally resist attacks by large diameter perforating tools.

A cet effet, l'invention a pour objet un dispositif de protection contre les outils perforants, tels que par exemple les outils de carottage, et du type comprenant un support muni de billes incorporées et montées à rotation libre dans ce support, caractérisé en ce que ledit support est constitué par au moins une grille dont les ouvertures assurent le positionnement et/ou la fixation de boîtiers fermés contenant chacun une bille. L'ensemble des boîtiers de billes formant une configuration régulière en damier dans ce support.To this end, the subject of the invention is a device for protecting against perforating tools, such as for example coring tools, and of the type comprising a support provided with balls incorporated and mounted for free rotation in this support, characterized in that that said support is constituted by at least one grid, the openings of which ensure the positioning and / or fixing of closed boxes, each containing a ball. All of the ball cases forming a regular checkerboard configuration in this support.

La grille précitée est solidaire d'une plaque de base par l'intermédiaire d'entretoises fixées, par exemple soudées, tant sur la grille que sur ladite plaque.The aforementioned grid is secured to a base plate by means of fixed spacers, for example welded, both on the grid and on said plate.

Suivant une réalisation préférée, une deuxième grille est fixée sur ces entretoises et coopère avec la plaque de base précitée pour positionner les boîtiers de billes entre cette deuxième grille et ladite plaque.According to a preferred embodiment, a second grid is fixed on these spacers and cooperates with the aforementioned base plate to position the ball housings between this second grid and said plate.

Suivant encore une autre caractéristique de l'invention, les boîtiers contenant les billes comportent des pattes, saillies ou analogues assurant leur accrochage sur la grille citée en premier lieu et constituant le support.According to yet another characteristic of the invention, the boxes containing the balls have tabs, projections or the like ensuring their attachment to the grid cited in the first place and constituting the support.

On ajoutera encore ici que les boîtiers fermés contenant les billes présentent une section circulaire ou polygonale et peuvent former une seule pièce ou bien comporter chacun un corps et un couvercle.It will also be added here that the closed boxes containing the balls have a circular or polygonal section and can form a single piece or else each comprise a body and a cover.

Selon une autre caractéristique du dispositif de l'invention, les entretoises sont constituées par des tôles soudées par leurs bords sur la plaque de base et sur les grilles.According to another characteristic of the device of the invention, the spacers are constituted by sheets welded by their edges on the base plate and on the grids.

Le diamètre de ces billes est de préférence voisin de 30 millimètres, tandis que la distance entre les axes de deux billes adjacentes suivant une diagonale est comprise entre environ 40 et 60 millimètres.The diameter of these balls is preferably close to 30 millimeters, while the distance between the axes of two adjacent balls along a diagonal is between approximately 40 and 60 millimeters.

L'invention vise également une paroi composite munie d'un dispositif selon l'une des revendications 1 à 8, caractérisé en ce qu'audit dispositif est aditionné un matériau coulable, tel que par exemple béton, ou caoutchouc synthétique.The invention also relates to a composite wall provided with a device according to one of claims 1 to 8, characterized in that said device is added a flowable material, such as for example concrete, or synthetic rubber.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés, donnés uniquement à titre d'exemple, et dans lesquels:

  • La figure 1 est une vue partielle en élévation et en coupe suivant la ligne 1-1 de la figure 2, d'une paroi composite comprenant un dispositif conforme au principe de l'invention, et
  • la figure 2 est une vue de dessus de cette paroi et suivant la coupe faite sensiblement suivant la ligne II-II de la figure 1.
However, other advantages and characteristics of the invention will appear better in the detailed description which follows and which refers to the appended drawings, given solely by way of example, and in which:
  • FIG. 1 is a partial view in elevation and in section along line 1-1 of FIG. 2, of a composite wall comprising a device according to the principle of the invention, and
  • FIG. 2 is a top view of this wall and along the section made substantially along the line II-II of FIG. 1.

Selon l'exemple de réalisation représenté sur les dessins, une paroi 1 équipée d'un dispositif de protection conforme au principe de l'invention comprend essentiellement des billes 2 montées à rotation libre dans cette paroi tout en étant fermement maintenues dans le plan horizontal.According to the embodiment shown in the drawings, a wall 1 equipped with a protection device according to the principle of the invention essentially comprises balls 2 mounted for free rotation in this wall while being firmly held in the horizontal plane.

Plus précisément, chaque bille 2 est logée dans un boîtier fermé 3 qui est réalisé en une matière appropriée, telle que par exemple une matière plastique. Les billes 2 peuvent tourner librement dans leurs boîtiers respectifs 3.More specifically, each ball 2 is housed in a closed housing 3 which is made of a suitable material, such as for example a plastic material. The balls 2 can rotate freely in their respective housings 3.

Comme on le voit mieux sur la figure 2, les boîtiers 3 sont encastrés et positionnés dans les ouvertures 4 d'une grille G qui, suivant l'exemple de réalisation représenté, est constituée par des fils métalliques 5 entrelacés perpendiculairement l'un à l'autre.As best seen in Figure 2, the housings 3 are embedded and positioned in the openings 4 of a grid G which, according to the embodiment shown, is formed by metallic wires 5 interlaced perpendicularly to one another. 'other.

La paroi latérale des boîtiers 3 comporte des pattes, saillies ou analogues 6 qui sont bien visibles sur la figure 1 et qui permettent l'accrochage des boîtiers 3 sur les fils métalliques 5 de la grille G.The side wall of the boxes 3 has lugs, projections or the like 6 which are clearly visible in FIG. 1 and which allow the boxes 3 to be hooked onto the metal wires 5 of the grid G.

Comme on le voit bien sur la figure 2, l'ensemble des boîtiers fermés 3 forme une configuration régulière en damier dans la grille, comme cela est montré en A, B, C, D, E et F.As can be seen in FIG. 2, the set of closed boxes 3 forms a regular checkerboard configuration in the grid, as shown in A, B, C, D, E and F.

La grille G est solidaire d'une plaque de base 7 par l'intermédiaire d'entretoises 8 fixées tant sur la grille G que sur la plaque de base 7. Plus précisément, les entretoises 8 sont constituées par des tôles métalliques soudées par leurs bords sur la plaque de base 7 et sur la grille G comme on l'a montré respectivement en 9 et 10 sur les figures 1 et 2.The grid G is integral with a base plate 7 by means of spacers 8 fixed both on the grid G and on the base plate 7. More specifically, the spacers 8 are constituted by metal sheets welded by their edges on the base plate 7 and on the grid G as shown respectively in 9 and 10 in FIGS. 1 and 2.

Les boîtiers 3 peuvent être réalisés en une seule pièce, formant une cage pour les billes 3, ou bien peuvent être réalisés en deux parties, comme cela est représenté sur les figures, et à savoir un corps 3a et un couvercle 3b. Egalement, les boîtiers 3 peuvent présenter en section transversale une forme circulaire, ou bien une forme polygonale, telle que carrée par exemple, si les ouvertures 4 de la grille G sont carrées. Pour illustrer ces deux configurations, on a montré sur la figure 2, et tout à fait à droite de cette figure, un boîtier 3 qui présente une forme carrée, tandis que le boîtier 3 qui se trouve sur la même ligne et à gauche du boîtier carré, présente une forme circulaire. Mais, dans les deux cas, le boîtier 3 demeure fermement positionné dans le plan par les ouvertures de la grille G de même que la bille 2 qui y est contenue et qui tourne librement dans ledit boîtier.The housings 3 can be made in one piece, forming a cage for the balls 3, or can be made in two parts, as shown in the figures, and namely a body 3a and a cover 3b. Also, the boxes 3 may have in cross section a circular shape, or else a polygonal shape, such as square for example, if the openings 4 of the grid G are square. To illustrate these two configurations, we have shown in FIG. 2, and quite to the right of this figure, a housing 3 which has a square shape, while the housing 3 which is on the same line and to the left of the housing square, has a circular shape. However, in both cases, the housing 3 remains firmly positioned in the plane through the openings of the grid G, as does the ball 2 which is contained therein and which rotates freely in the said housing.

Une deuxième grille H visible sur la figure 1, elle aussi constituée par exemple par des fils métalliques 11 et 12 entrelacés perpendiculairement, est disposée au-dessus de l'ensemble constitué par les boîtiers 3, la grille G et la plaque de base 7. Plus précisément, la grille H est fixée, par exemple soudée en 13 sur l'un des bords des entretoises ou tôles 8. Ainsi, les boîtiers 3 se trouvent positionnés dans la grille G entre la grille H et la plaque de base 7. Et tout l'ensemble est solidaire grâce aux entretoises 8 soudées sur la plaque 7, sur la grille H et sur la grille G dans les ouvertures 4 de laquelle sont montés les boîtiers fermés 3 contenant les billes 2.A second grid H visible in FIG. 1, also constituted for example by metallic wires 11 and 12 interleaved perpendicularly, is disposed above the assembly constituted by the housings 3, the grid G and the base plate 7. More precisely, the grid H is fixed, for example welded at 13 on one of the edges of the spacers or sheets 8. Thus, the housings 3 are positioned in the grid G between the grid H and the base plate 7. And the whole assembly is integral with the spacers 8 welded to the plate 7, to the grid H and to the grid G in the openings 4 from which the closed housings 3 containing the balls 2 are mounted.

Le diamètre des billes 2 est de préférence voisin de 30 millimètres. Quant à la distance d entre les axes de deux billes 2 adjacentes suivant une diagonale, comme on le voit bien sur la figure 2, elle est de préférence comprise entre environ 40 et 60 millimètres.The diameter of the balls 2 is preferably close to 30 millimeters. As for the distance d between the axes of two adjacent balls 2 along a diagonal, as can be seen in FIG. 2, it is preferably between approximately 40 and 60 millimeters.

Revenant à la figure 1, on voit qu'un matériau coulable 14, tel que par exemple du béton ou du caoutchouc synthétique, est additionné à l'ensemble décrit précédemment. Ainsi, tout l'ensemble se trouve noyé dans ce matériau à l'exception des billes 2 enfermées dans leurs boîtiers 3 de sorte que celles-ci sont toujours libres en rotation dans lesdits boîtiers.Returning to FIG. 1, it can be seen that a flowable material 14, such as for example concrete or synthetic rubber, is added to the assembly described above. Thus, the whole assembly is embedded in this material with the exception of the balls 2 enclosed in their housings 3 so that they are always free to rotate in said housings.

On a donc réalisé suivant l'invention une paroi composite 1 qui peut par exemple équiper un coffre-fort et qui comprend des billes positionnées suivant une configuration en damier et fermement maintenues dans le plan horizontal grâce aux boîtiers 3 qui les contiennent et qui sont accrochés dans les ouvertures de la brille G.A composite wall 1 has therefore been produced according to the invention which can, for example, be fitted to a safe and which comprises balls positioned in a checkerboard configuration and firmly held in the horizontal plane by virtue of the housings 3 which contain them and which are hung in the openings of the G lamp.

Ainsi, en cas d'attaque par un outil perforantsui- vant la direction matérialisée par la flèche 15, les billes 2 resteront soumises à l'attaque de l'outil et tourneront sous l'effet de la rotation de l'outil qui ne pourra donc pas, ou qui pourra très difficilement, traverser de part en part la paroi 1.Thus, in the event of attack by a perforating tool following the direction materialized by the arrow 15, the balls 2 will remain subject to attack by the tool and will rotate under the effect of the rotation of the tool which cannot therefore not, or which will be very difficult to cross right through the wall 1.

On a donc réalisé suivant l'invention une paroi intérieurement munie d'un agencement de moyens très particuliers et combinés suivant une configuration très spéciale, de sorte que ladite paroi constitue un barrage extrêmement efficace à la pénétration des outils perforants, et notamment des couronnes diamantées présentant un grand diamètre.A wall has therefore been produced according to the invention internally provided with an arrangement of very specific means and combined in a very special configuration, so that said wall constitutes an extremely effective barrier to the penetration of perforating tools, and in particular diamond crowns. having a large diameter.

Claims (9)

1. Device for protection against perforating tools such for instance as coring tools and of the type comprising a support fitted with balls (2) incorporated and mounted for free rotation in this support, characterized in that the said support consists of at least one grating (G) the openings of which ensure the positioning and/or the fastening of closed boxes (3) containing each one a bal (2).
2. Device according to claim 1, characterized in that all of the closed boxes (3) are distributed according to a regular configuration in check pattern within the grating.
3. Device according to claim 1 or 2, characterized in that the aforesaid grating (G) is solid with a base plate (7) through the medium of braces (8) fastened, for instance welded, to the grating as well as to the said plate.
4. Device according to one of claims 1 to 3, characterized by a second grating secured onto the braces (8) and co-operating with the aforesaid base plate (7) for positioning the ball boxes between this second grating and the said plate.
5. Device according to one of the foregoing claims, characterized in that the boxes (3) containing the balls comprise lugs, projections or the like ensuring their hooking onto the first-named grating and constituting the support.
6. Device according to one of the preceding claims, characterized in that the aforesaid closed boxes comprise each one a body (3a) and a cover (3b).
7. Device according to claim 3 or 4, characterized in that the aforesaid braces (8) are metal sheets welded with their edges onto the base plate and onto the gratings.
8. Device according to one of the foregoing claims, characterized in that the diameter of the aforesaid balls (2) is nearly 30 millimetres whereas the distance between the axes of two adjacent balls along one diagonal line is comprised between about 40 and 60 millimetres.
9. Composite wall provided with a device according to one of claims 1 to 8, characterized in that to the said device is added a castable material such for instance as concrete or synthetic rubber.
EP85401408A 1984-07-24 1985-07-10 Protection device for drilling tools, and composite wall comprising such a device Expired EP0172065B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401408T ATE30180T1 (en) 1984-07-24 1985-07-10 PROTECTIVE DEVICE AGAINST DRILLING EQUIPMENT, AND BED WALL PROVIDED WITH SUCH DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8411728A FR2568305B1 (en) 1984-07-24 1984-07-24 DEVICE FOR PROTECTION AGAINST PERFORATING TOOLS AND COMPOSITE WALL PROVIDED WITH THIS DEVICE
FR8411728 1984-07-24

Publications (2)

Publication Number Publication Date
EP0172065A1 EP0172065A1 (en) 1986-02-19
EP0172065B1 true EP0172065B1 (en) 1987-10-07

Family

ID=9306433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401408A Expired EP0172065B1 (en) 1984-07-24 1985-07-10 Protection device for drilling tools, and composite wall comprising such a device

Country Status (4)

Country Link
EP (1) EP0172065B1 (en)
AT (1) ATE30180T1 (en)
DE (1) DE3560755D1 (en)
FR (1) FR2568305B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3706898A1 (en) * 1987-03-04 1988-09-15 Bode Panzer Ag WALL OR WALL ELEMENT FOR SECURITY DEVICES LIKE SAFE, SECURITY DOORS, MONEY CABINETS OR THE LIKE
KR101199740B1 (en) 2005-11-25 2012-11-08 엘지엔시스(주) Drill blocking unit and door-lock security apparatus using the same
FR3099513B1 (en) 2019-07-31 2023-12-08 Fichet Bauche Secure access enclosure comprising walls with a one-piece structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525738A1 (en) * 1975-06-10 1976-12-23 Danzer Josef Helmut Anti drilling plate for walls of safe - has layer of rotable balls for absorbing energy of rotating drilling tool
NL160904C (en) * 1976-06-18 1979-12-17 Lips Brandkastenfabrieken Bv HULL FOR A BURGLAR PROOF CUPBOARD.
DE2933026A1 (en) * 1979-08-16 1981-02-26 Battelle Institut E V Safe or strong room forcible entry resistant wall - has non sliding rotatable spherical units in row between parallel panels

Also Published As

Publication number Publication date
DE3560755D1 (en) 1987-11-12
FR2568305B1 (en) 1986-10-24
FR2568305A1 (en) 1986-01-31
EP0172065A1 (en) 1986-02-19
ATE30180T1 (en) 1987-10-15

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