JPH047356Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a structure for improving the theft prevention properties of a wall constituting the main body and door of a safe. Note that the "wall" in this application is a concept that includes the top plate and bottom plate of the main body of the safe.

[Conventional technology]

Various ideas have been devised as means to improve the theft prevention properties of safes, and as one example, Japanese Utility Model Publication No. 43-5045 describes a method for improving the theft prevention properties of safes. A large number of blocks made of a cone-resistant material are formed into rectangular plate shapes, arranged vertically and horizontally so that each block is parallel to the inner and outer plates, and the front and back surfaces of each block are A block layer is formed by protruding hook-shaped feet and connecting the feet of adjacent blocks with reinforcing bars, and there is a gap between this block layer and the inner plate, and between the block layer and the outer plate. A structure in which a fireproof material such as concrete is filled between the face plate and the face plate is described.

[The problem that the idea attempts to solve]

However, in this conventional technology, the outer circumferential surfaces of adjacent blocks are simply in contact with each other, and the adjacent blocks are simply connected via reinforcing bars, so they are susceptible to attacks caused by heavy blows from hammers. Not only was it weak, but since drill attacks had to be defended only with blocks, there was a problem in that the defense performance against drill attacks was not sufficient.

The object of the present invention is to provide a safe with significantly improved anti-theft performance in a form that allows for improved assembly efficiency.

[Means to solve the problem]

In order to achieve this purpose, the wall of the safe in the present invention has an inner plate and an outer plate arranged in parallel with appropriate distance, and a space between the inner plate and the outer plate that is approximately parallel to the inner plate and the outer plate. A plurality of honeycomb plates each having a strip-shaped metal plate bent in a zigzag shape or an uneven shape along the longitudinal direction are provided on one or both of the wide surfaces of the substrate.
A honeycomb in which the wide surfaces of each honeycomb plate intersects with the wide surface of the substrate and the wide surfaces of adjacent honeycomb plates partially contact each other, or a band-shaped metal plate is bent in a zigzag shape or an uneven shape. By alternately arranging the plates and the honeycomb plates, which are flat strip-shaped metal plates, with their wide surfaces in contact with each other, a space with an appropriate cross section that opens in a direction intersecting the wide surface of the substrate is created. A plurality of honeycomb structures are formed, the honeycomb structures are fixed to the wide surface of the substrate, and concrete is added to the space between the substrate and the inner surface plate and the space between the substrate and the outer surface plate. The structure is filled with high-strength refractory materials such as

[Functions and effects of the idea]

With this configuration, adjacent honeycomb plates in the honeycomb structure and each honeycomb plate and the substrate mutually reinforce each other, and the rigidity of the honeycomb structure and the substrate is significantly strengthened. Each honeycomb plate is filled with a heavy refractory material, making it extremely difficult to deform, and the refractory material filled in the cavity of each honeycomb structure is spread over the wide surface of the honeycomb plate and the substrate. The combination of these three factors, which are in contact with each other in area and improve the adhesion strength of the refractory material to the honeycomb plate and the substrate, significantly improves the defense function against a strong blow from a hammer.

Further, since the voids in the honeycomb structure are filled with heavy fireproof material such as concrete, it is extremely difficult to melt and cut each honeycomb plate and the substrate with a burner.

Furthermore, to make a hole in the wall with a drill,
It is necessary to cut several honeycomb plates along their width and to drill holes in the substrate, which requires a huge amount of time to cut the honeycomb plates. , the tip of the drill becomes partially caught in the flesh of the honeycomb plate, making the drill extremely susceptible to breakage.

By the way, as a means of forming a honeycomb structure using honeycomb plates, a large number of flat band-shaped honeycomb plates arranged in the vertical direction and a large number of flat band-shaped honeycomb plates arranged in the horizontal direction are combined with the width of each honeycomb plate. It is conceivable to form slits extending in the direction so as to face each other and to fit the vertical and horizontal honeycomb plates into each other at the slits, but in such a structure, the rows of honeycomb plates in the vertical and horizontal directions One of the honeycomb plates must be lined up in advance at regular intervals, and while maintaining the posture of each honeycomb plate, the other row of honeycomb plates must be fitted to the one row of honeycomb plates. For,
The work of forming a honeycomb structure is troublesome.

However, with the configuration of the present invention, the honeycomb plate is
Arrange the next honeycomb board on the wide side of the board so that it overlaps the previous honeycomb board, and in the process, weld the honeycomb boards to the board one after another, or after the honeycomb boards are finished arranging, place the honeycomb board on the board. Since the honeycomb structure can be formed by welding or the like, the work of assembling the honeycomb structure can be carried out quickly, and the efficiency of the work of assembling the safe can be improved.

Therefore, according to the present invention, it is possible to reliably protect against attacks by hammers, burners, and drills, so that the theft prevention properties of the safe can be significantly improved, and the honeycomb structure can be assembled quickly. This has the effect of improving the efficiency of safe assembly work.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

1 to 4 show a first embodiment, and in these figures, reference numeral 1 denotes a safe consisting of a door 4 attached via a hinge 3 to the opening of a main body 2 with an open front. Each peripheral wall constituting the main body 2 and the wall constituting the door 4 in this safe 1 are constructed by disposing a core material 5 between an inner surface plate 12 and an outer surface plate 11 made of steel plate or the like. It has a three-layer structure in which the spaces between the material 5 and the inner surface plate 12 and between the core material 5 and the outer surface plate 11 are filled with refractory materials 10', 13, and 10.

The core material 5 is a honeycomb structure formed of a metal substrate 6 made of a difficult-to-cut material such as special steel and arranged approximately parallel to the inner and outer plates 12 and 11, and a large number of honeycomb plates 8. 7, a honeycomb plate 8 is formed by bending a band-shaped metal plate in a zigzag shape, and a large number of honeycomb plates 8 are arranged so that the wide side of each honeycomb plate 8 is perpendicular to the wide side of the substrate 6. At the same time, by arranging the adjacent honeycomb plates 8 such that they are in contact with a part of their wide surfaces, a honeycomb structure 7 having a large number of openings of recesses 9 having a rhombic cross section is formed, and the adjacent honeycomb plates 8 While the plates 8 are fixed together by welding, each honeycomb plate 8
is fixed to one wide surface of the substrate 6 by welding.

In this case, instead of abutting each honeycomb plate 8 in a line contact at the bent top, the adjacent honeycomb plates 8 are slightly shifted in the longitudinal direction and are brought into surface contact in the vicinity of the bending top. By doing so, the rigidity of the honeycomb structure 7 can be improved.

A first refractory material 10' filled between the inner surface plate 12 and the core material 5, a second refractory material 13 filled in each cavity 9 of the honeycomb structure 7, and each core material 5 and the outer surface plate. The third refractory material 10 filled in the area between 11 and 11
Each of these is made of reinforced concrete, and corundum lumps 14 having the same composition as the grinding wheel, grindstone-forming dresser, etc. are buried in the second refractory material 13 at an appropriate density to allow drilling with a drill. It retains the function of blocking the heat and the function of absorbing heat to deal with fusing.

In this case, the second refractory material 13 is formed in advance to be fixed to the core material 5 by pouring fresh concrete containing corundum lumps 14 into the cavity 9 of the honeycomb structure 7. , the core material 5 is arranged between the inner surface plate 12 and the outer surface plate 11, and in this state, concrete is poured between the core material 5 and the inner surface plate 12 and between the core material 5 and the outer surface plate 11. , 1st
The refractory material 10' and the third refractory material 10 may be formed.

In addition, when embedding the corundum lump 14 in the second refractory material 13, the second refractory material 13 is formed of aluminum (or an alloy thereof) having the same volume and weight ratio as the corundum lump 14, and the corundum lump 14 is The second refractory material 13 may be cast into the honeycomb structure 7 in advance by pouring molten aluminum containing the aluminum into the cavity 9 of the honeycomb structure 7.

It goes without saying that the corundum mass 14 may be buried in either or both of the first refractory material 10' and the third refractory material 10, or each of the refractory materials 10', 13, 10 may be made of concrete only. stomach.

In the above configuration, in order to destroy the safe 1 and take out the items inside, for example, as shown by the dotted line in FIG.
The hole 15 must be made by fusing with a burner, breaking with a hammer, or drilling with a drill.

Therefore, even if the outer plate 11 and the third refractory material 10 are destroyed, it is almost impossible to melt and cut the core material 5 because the second refractory material 13 is filled in the honeycomb structure 7. .

In addition, even if you hit it hard with a hammer, each honeycomb board 8
The honeycomb structure 7 has a honeycomb structure in which the honeycomb plates 8 and the substrate 6 reinforce each other, and the honeycomb structure 7 is filled with the second refractory material 13, so that the honeycomb structure 7 is extremely deformed. 2 to the honeycomb plate 8 and the substrate 6.
The contact area of the refractory material 13 is large, and the second refractory material 1
3 is firmly fixed to the honeycomb plate 8 and the substrate 6, and together, the rigidity of the core material 5 is significantly strengthened, so it has a high defense function against hammer attacks. will be demonstrated.

Furthermore, in order to make a hole 15 of a certain size by drilling with a drill, each honeycomb plate 8 located at the periphery of the hole 15 must be cut along its axial direction, and then the substrate 6 must be drilled. However, not only does it take a lot of time to cut each honeycomb plate 8 in its axial direction, but the tip of the drill becomes partially caught in the honeycomb plate 8.
Since drills are extremely susceptible to breakage, the defense against drill attacks is also greatly improved.

To form the honeycomb structure 7, the honeycomb plates 8 are arranged on the wide surface of the substrate 6 and welded to the substrate 6 one after another, or after the honeycomb plates 8 are arranged once, each honeycomb plate 8 is welded to the substrate 6. Since it is only necessary to weld it to the substrate 6, the assembly work of the honeycomb structure 7 can be performed extremely quickly, and the efficiency of the assembly work of the safe 1 can be improved.

The present invention can take various forms as described below.

(1) First, as illustrated in FIGS. 5 to 8, the honeycomb structure 7 can be formed into various forms.

Among these, the one shown in FIG. 5 is formed by forming the honeycomb plate 8 in a concave and convex shape with continuous trapezoids, and by abutting adjacent honeycomb plates 8 so that their concavities face each other. Structure 7
In addition, as shown in FIG. 6, the honeycomb plates 8 are formed into an uneven shape with continuous rectangular shapes, so that the adjacent honeycomb plates 8 are This is an example in which the recesses are brought into contact with the honeycomb plate 8 so as to be shifted in the longitudinal direction.

Furthermore, FIG. 7 shows an example in which a cavity 9 is formed into a chevron-shaped cross section by alternately overlapping honeycomb plates 8a formed with a corrugated cross-section and honeycomb plates 8b formed in a flat band shape. Fig. 8 shows a honeycomb plate 8 formed in an uneven shape so that concave portions each having a semicircular cross section are continuous, and the honeycomb plate 8 is formed so that the directions of the semicircular concave portions are alternately opposite to each other. By arranging them in a row, the recesses 9 are formed into a circular shape.

(2) As the next form, the honeycomb plate 8 may be arranged so that its wide side is inclined with respect to the wide side of the substrate 6.

In this way, when attempting to drill a hole in the honeycomb structure 7 with a drill, the chisel edge of the drill will not come into contact with the surface of the honeycomb plate 8.
When the inclined cutting edge at the tip of the drill comes into contact with the surface of the honeycomb plate 8, a phenomenon occurs in which the tip of the drill slips on the surface of the honeycomb plate 8, resulting in poor biting of the drill into the honeycomb plate 8. The tip of the honeycomb plate 8 slides along the surface of the honeycomb plate 8, and the drill is likely to break due to the pressing force applied to the drill.
It has the advantage of being able to more effectively protect against damage caused by drills.

(3) Furthermore, as another form, the honeycomb structure 7
may be fixed not only to one side of the substrate 6 but also to both sides of the substrate 6.

In this case, for example, as shown by the dashed line in FIG. 4, the honeycomb structures 7, 7 located on both sides of the substrate 6 may be shifted so that they do not overlap each other when viewed from the direction perpendicular to the substrate 6, or If the honeycomb structures 7, 7' on both the inner and outer sides are composed of honeycomb plates 8, 8' having different cross-sectional shapes, it is difficult to cut the honeycomb plates 8 in the honeycomb structure 7' located closer to the inner surface plate 12. , the position of the drill must be changed once,
Since it takes longer to cut the honeycomb structure 7, the theft prevention function can be further enhanced.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the core material, FIG. 2 is a perspective view of the safe, FIG. - The sectional view, FIG. 5, FIG. 6, FIG. 7, and FIG. 8 are views of other examples of the honeycomb structure, respectively. 1...Safe, 5...Core material, 6...Substrate, 7...
Honeycomb structure, 8... honeycomb plate, 9... void, 10, 13, 10'... fireproof material, 11... outer surface plate, 12... inner surface plate.

Claims (1)

[Scope of utility model registration request] A wall that constitutes the main body or door of a safe, and this wall has an inner plate and an outer plate arranged in parallel with appropriate distance, and a wall between the inner plate and the outer plate. A plurality of honeycomb plates each having a strip metal plate bent in a zigzag shape or an uneven shape along the longitudinal direction on one or both of the wide surfaces of the substrate. are arranged in such a way that the wide surfaces of each honeycomb plate intersect with the wide surface of the substrate and the wide surfaces of adjacent honeycomb plates are partially in contact with each other, or the band-shaped metal plates are bent in a zigzag or uneven shape. By alternately arranging the honeycomb plates made of the above-mentioned honeycomb plates and the honeycomb plates of the flat band-shaped metal plate so that their wide surfaces are in contact with each other, a hole of an appropriate cross section is formed that opens in a direction that crosses the wide surface of the substrate. forming a honeycomb structure having a large number of holes, fixing the honeycomb structure to the wide surface of the substrate, and further forming a honeycomb structure in a space between the substrate and the inner surface plate and a space between the substrate and the outer surface plate. , a wall structure in a safe characterized by being filled with a high-strength fireproof material such as concrete.