JPH06167169A - Safe - Google Patents

Abstract

PURPOSE:To provide a safe whereby resins opposed to each other are fusion- bonded by heat in time of a fire, a clearance between faces opposed to each other narrows and hot air an flames are prevented from enter the inside of the safe, by providing the resins on the faces of both a door frame and a main body frame, which faces are opposed to each other. CONSTITUTION:A metallic plate 36 on a safe main body and a metallic plate 38 on a door 20 are divided into near and far sides in a space part 30 wherein a door frame and a main body frame are opposed to each other. These metallic plates 36, 38 are respectively connected with resinous plates 32, 34 and both of the resinous plates are put so as to be opposed to each other at a fixed clearance. When a fire occurs, its heat is transmitted into the space part 30 and the space part reaches a high temperature in some degree. At this time, the resinous plates provided on both sides of the space part begin to melt and are fused with each other, or the resinous plate on one side thereof is fusion- bonded to the metallic plate on the other side. In this way, the clearance between both of these faces closes or narrows, and it is cut off that the heat and flames enter the inside of a safe, and thus stored articles can be protected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safe capable of enhancing the protective performance of a contained object against fire.

[0002]

2. Description of the Related Art In a fireproof safe or vault, a cross section of an overlapping surface between a door frame and a main frame into which the door frame fits has a so-called smoke return structure in which a lightning bolt is folded back.
With such a smoke return structure, the total area of the overlapping surface of the door frame and the main body frame becomes large, and the distance from the outside to the inside becomes long, so that in the case of a fire, the heat from the outside is transferred to the inside. The conduction of the material is kept low and the contents can be protected from heat.

[0003]

As in the above-mentioned conventional safe, a certain degree of fire resistance can be provided by making the overlapping surface of the door frame and the main body frame a smoke return structure.
However, in the conventional safe, since the frame of the door and the main frame into which the frame fits are made of iron plates, heat from the outside is easily transferred to the safe, and there is a limit to further improving the fire resistance performance. Moreover, in order to further improve the fire resistance performance, it is possible to use a more complicated smoke return structure, but if this is done, the mechanical strength will decrease, the cost will increase, and the opposite effect will be produced. Not so high.

The present invention has been made in view of the above points, and provides a safe with a simple structure and in which a sufficient fire resistance can be obtained without using a smoke return structure in some cases. The purpose is to

[0005]

In order to achieve the above object, the present invention provides a resin on an overlapping surface of a frame of a door and a main frame into which the door fits. Further, a plurality of divided pieces were joined to form a safe body, and a resin was interposed in this joined portion.

[0006]

[Function] When a fire occurs and the heat is transferred to the overlapping surface between the door frame and the main body frame and reaches a certain temperature, the resin provided on the overlapping surface begins to melt and the resin on both sides of the overlapping surface Are fused, or the resin on one side of the overlapping surface is fused to the metal plate on the other surface, the gap between the overlapping surfaces is blocked or narrowed, and heat and flame are prevented from entering the safe.
The stored items are protected. Even in the case where a plurality of divided pieces are joined to form a safe main body and resin is interposed in this joint, heat and flame intrusion into the safe in case of fire is blocked by fusion of the resin and stored. Things are protected.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a safe according to the present invention will be described below with reference to the drawings. 1 to 6, a safe body 10 having a rectangular parallelepiped shape with one open front surface is covered with metal plates such as iron plates on both front and back surfaces of each wall, and a filler 12 such as concrete is provided between the front and back metal plates. Filled with fireproof material. An appropriate number of shelf boards 14 can be installed in the safe body 10 at an appropriate height. The front surface of the safe body 10 can be opened and closed by a door 20. Almost the entire surface of the door 20 is covered with a metal plate such as an iron plate, and the inside thereof is filled with a filler 12 such as concrete so as to have fire resistance. The door 20 is configured to open and close the opened front surface of the safe body 10 by connecting the right side edge portion to the safe body 10 with a hinge 16 in FIG. The door 20 is provided with a dial lock 24 and a cylinder lock 26 for locking the safe body 10 in a closed state, and a handle 28 for advancing and retracting the bar.

As described in the above-mentioned conventional example, the cross-sectional shape of the overlapping surface 30 between the outer peripheral frame of the door 20 and the main body frame into which the outer peripheral frame fits is a lightning-shaped folded back shape, so-called smoke. It has a return structure. The structure of the overlapping surface 30 will be specifically described below. 4 to 6, reference numeral 36 indicates a metal plate that covers both front and back surfaces of the safe body 10, and reference numeral 38 indicates the door 20.
Shows a metal plate that covers almost the entire surface of. The metal plate 36 of the safe body 10 and the metal plate 38 of the door 20 have the overlapping surface 30.
At the front of the safe, it is divided into a front side and a back side. The divided metal plates 36 are joined by the resin plate 32, and the divided metal plates 38 are joined by the resin plate 34. These resin plates 32 and 34 have a frame shape, and respectively form an outer peripheral frame of the door 20 and a main body frame that receives the outer peripheral frame. In addition, each resin plate 32,
The cross-sectional shape of 34 is bent a plurality of times, and when the door 20 is closed, both resin plates 32 and 34 are complementarily fitted with each other at a predetermined interval to form a smoke return. .

The handle 28 is fixed to the front end of a rotary shaft 48 that penetrates the door 20 in the front-rear direction. A plate 46 is integrally attached to the rear end of the rotary shaft 48 so that A rear end portion of the barb 40 is rotatably connected to a pin provided at a displaced position. The bar 40 is provided at several places, and each bar 40 is connected to a pin provided at a position deviated from the rotation center of the plate 46. When the handle 28 is rotated to rotate the rotary shaft 48 and the plate 46, the bar 40 Is retracted from the outer peripheral frame of the door 20, and is projected from the outer peripheral frame to be fitted into the fitting portion of the safe body 10.
When the dial lock 24 or the cylinder lock 26 is operated and locked, the bar 40 is locked while protruding.

According to the embodiment described above, the safe body 1
The metal plate 36 of 0 and the metal plate 38 of the door 20 are divided into the front side and the back side at the overlapping surface 30 between the door frame and the main body frame, and these divided metal plates 36 and 38 are resin plates 32, Three
Since the plates 32 and 34 made of resin are overlapped with each other with a predetermined gap, they are overlapped with each other at a certain temperature. The resin plates 32 and 34 that make up the resin begin to melt, the resins 32 and 34 on both sides fuse together, the overlapping surface 30 is blocked, and heat and flame are prevented from entering the safe body 10 and stored. Things are protected. Further, as in the above-described embodiment, the metal plates 36, 38 forming the overlapping surface 30 of the frame of the door 20 and the frame of the safe body 10 are divided into the front side and the back side, and the divided metal plates 36, 38. The frame-shaped resin 3
If they are joined together by 2, 34, the heat conductivity of the resins 32, 34 is low, so that heat conduction to the inside by the frame of the door 20 or the frame of the safe body 10 is suppressed.

Although the embodiment described above is an example of a single safe, the present invention can be applied to a safe built into a building as shown in FIGS. 7 and 8. 7 and 8, the vault 50 is formed by partitioning the space of the building by a wall 52, and the entrance to the vault 50 formed by opening a part of the wall 52 is a sliding door type. The door 60 is opened and closed. Door 60
Runs along a rail 72 laid on a floor 74 of a building via a receiving plate 76. In FIG. 7, the right rear end edge portion of the door 60 is a rearward projecting portion 56, and the right front end edge portion of the doorway is a forward projecting portion 54. When the door 60 closes the doorway, these projecting portions 56 are formed. 54 are formed so as to overlap with each other with a predetermined gap. Resin plates 66 and 64 are provided so as to face the overlapping surface 58 of the protrusions 56 and 54, respectively.

On the other hand, in FIG. 7, the left front edge of the door 60 projects to the left, and the left front edge of the doorway is recessed to the left,
When the door 60 closes the entrance / exit, the projecting portion of the door 60 overlaps the recessed portion with a predetermined gap and overlaps with each other.
Are formed. Resin plates 70 and 68 are provided on the overlapping surface 62 of the protruding portion of the door 60 and the recessed portion so as to face each other. Although not shown, it is assumed that a resin plate or the like is also provided on the facing surface of the upper end portion of the door 60 and the upper end edge portion of the doorway.

In the state where the doorway to the safe room 50 is closed by the door 60 as shown in FIG. 7, the overlapping surfaces 58 and 62 of the door 60 at the left and right side edges and the wall 52 of the safe room body are respectively, as described above. Since the resin plates 66, 64 and 70, 68 are provided so as to face each other, when a fire occurs and its heat is transferred to the overlapping surfaces 58, 62 and becomes a high temperature to some extent, the overlapping surfaces are the same as in the above-described embodiment. The resin plates 66, 64 and 70, 68 constituting 58, 62 start to melt and fuse, and the smoke return sections 58, 62 are blocked or narrowed to prevent heat and flame from entering the safe 50. It is shut off and the contents are protected.

In the embodiment shown in FIGS. 7 and 8, there is a gap 80 between the lower surface of the door 60 and the receiving plate 76 of the rail 72,
No resin plate or the like is provided in this gap 80. Since a flame, hot air, or the like at the time of a fire is directed upward, even if a resin plate or the like is not provided in the gap 80, the fire resistance is not deteriorated. In FIG. 8, reference numeral 78 indicates a slope formed on the receiving plate 76 in order to smoothly connect the step difference between the vault 50 and the floor 74 to the outside.

As in the embodiment shown in FIGS. 1-6,
The metal plates 36 and 38 forming the overlapping surface 30 of the frame of the door 20 and the frame of the safe body 10 are divided into the front side and the back side, and the divided metal plates 36 and 38 are divided into the frame-shaped resins 32 and 34. Since the heat conductivity of the resins 32 and 34 is low, the heat conduction to the inside by the frame of the door 20 or the frame of the safe body 10 is suppressed, and the fire resistance is further improved.
The intended purpose can be achieved only by providing the resin on the overlapping surface without dividing the metal plate forming the overlapping surface of the door frame and the main body frame of the safe. FIG. 9 shows an example thereof, in which the metal plates 84 and 82 forming the overlapping surface 30 of the frame of the door 20 and the frame of the safe main body 10 are continuous without being divided into the front side and the back side, Resins 88 and 86 having a quadrangular cross section are fixed to the facing surfaces of the continuous metal plates 84 and 82 in different positions and alternately. FIG. 10 shows still another example. Resins 92 and 90 having a quadrangular cross section are fixed to the facing surfaces of the metal plates 84 and 82 so as to face each other.

According to the embodiment shown in FIGS. 9 and 10, external heat is conducted into the safe through the metal plates 84 and 82 in the event of a fire, but when the temperature rises, the overlapping surface 3 of the smoke return structure 3
Resins 88 and 86 composing 0 or resin 9
The two and 90 fellows are fused together, and the facing surface 30 is closed to block the entry of heat and flame into the safe body, so that the fire resistance performance is significantly improved compared to the conventional safe.

By thus providing the resin on the overlapping surface of the door frame and the main body frame into which the door fits, the fire resistance performance is markedly improved. Therefore, the overlapping surface of the door frame and the main body frame dare to smoke. Sufficient fire resistance can be obtained without using a return structure. FIG. 11 shows such an example. The overlapping surface 94 between the frame of the door 20 and the frame of the main body 10 is a simple plane, and resin plates 98 and 96 are provided on this plane, respectively. There is. The resin plates 98 and 96 are fused by the temperature rise in the case of a fire, and improve the fireproof performance of the safe as in the previous embodiments. As described above, since it is not necessary to form the smoke return structure, the thickness A of the front wall of the safe body 10 can be increased, and the mechanical strength can be increased. On the other hand, as shown in FIG. 12, the overlapping surface 105 of the smoke return structure
By providing, the thickness of the wall of the safe main body 100 gradually decreases toward the front, and the thickness a of the front wall of the safe main body 100 becomes about a fraction of the above A. Therefore, by applying the present invention, it is possible to obtain a safe that is also desirable in terms of mechanical strength.

As described with reference to FIG. 8, the resin does not necessarily have to be provided over the entire circumference of the frame, and the resin may be provided at required points. For example, as in the embodiment shown in FIG. 13, most of the frame of the entrance / exit of the safe body 10 is made of the resin frame 1.
It is also possible that the frame frame 22 is made of metal and the corner parts of the frame are made of the metal frame 120, and the resin frame 122 and the metal frame 120 are combined to form the main body frame. The frame part of the door fits into the main frame. The frame portion of the door may be formed by combining a resin frame and a metal frame as in the case of the main body frame, or the entire frame may be formed of resin.

In the case of a large safe, it is difficult to transport and install a product manufactured in a factory. Therefore, the safe body is divided into a plurality of parts and manufactured, and they are joined at the installation site. This is called an assembly type. The divided safe bodies are joined together using bolts, but heat may be conducted through the bolts in the event of a fire. However, if the idea of the present invention is applied to the above-mentioned joint, heat conduction can be significantly reduced. Hereinafter, examples incorporating such an idea will be described.

In FIG. 14, the safe body 130 is composed of a plurality of divided back plates, side plates, etc., and the divided members are joined by a plurality of joining portions 138. The frame of the door 140 is fitted to the body frame 139 on the safe body 130 side, and the overlapping surface 134 between these frames has a smoke return structure. However, the door 140 consists of two doors on the left and right,
When the two doors 140 are closed, the front end portions of both doors 140 overlap with each other with a predetermined gap, and the overlapping surface 136 has a smoke return structure.

FIG. 15 shows a concrete structure of the joint portion 138.
Shown in. In FIG. 15, almost all of the divided pieces of the safe body divided into a plurality of pieces are covered with a metal plate 142 such as an iron plate, and a filler 144 such as concrete is filled between the front and back metal plates 142 to prevent fire. It has. The joints of the above-mentioned divided pieces are almost 1 so that they overlap each other in a complementary manner.
It is formed stepwise with a thickness of / 2. In this stepped portion, both metal plates 142 are divided, and the divided metal plates 142 are joined by a resin plate 146. The resin plate 146 is formed in a crank shape in cross section so as to complement the outer shape of the divided piece. The two resin plates 146 having the crank-shaped cross section are overlapped with each other, and the bolt 150 penetrating the joint portion of one divided piece and both resin plates 146 is screwed into the nut 148 fixed to the other divided piece side. Both pieces are joined. A collar 152 is embedded and fixed in the joint portion of one of the divided pieces, and the bolt 150 is inserted into the collar 152.

According to the embodiment shown in FIGS. 14 and 15, even if the heat during a fire is conducted through the bolt 150, it becomes difficult for the resin plate 146 to conduct the heat and the temperature inside the safe increases. It is suppressed and the stored items are protected.

Besides, various modifications of the present invention will be described. In the above examples, the resin is provided on both sides of the overlapping surface of the door frame and the main body frame, but the resin may be provided only on one surface of the overlapping surface. The door may be opened or closed by a hinged hinged door, a sliding door, a double door in the case of a hinged door, or a sliding door in the case of a sliding door. The form of connection between the resin and the metal plate provided on the overlapping surface of the door frame and the body frame is not particularly limited, and means such as caulking, screwing, fitting, welding, and adhesion may be appropriately selected and applied. .

The resin provided on the overlapping surface of the door frame and the body frame does not necessarily have to be completely fused to another resin or a metal plate facing each other by heat, and the gap between them may be narrowed. Good. This is also because hot air and flames are prevented from entering the safe, and the protective effect of the stored items is greatly improved.

The resin provided on the overlapping surface of the door frame and the main body frame may be provided at a required place as described above. For example, the upper, lower, left and right frame bodies are alternately joined with metal and resin. Alternatively, the resin may be fixed to a part of the metal frame.

[0026]

According to the first aspect of the present invention, since resin is provided on the overlapping surface of the door frame and the main body frame to which the door fits, a fire occurs and the heat is transferred to the overlapping surface. When the temperature rises to a certain level, the resin provided on the overlapping surface begins to melt and fuses or approaches the opposing partner side, and the gap between the overlapping surfaces is narrowed, and heat or flame may enter the safe body. It is blocked and the protective effect of the stored items is improved.

According to the second aspect of the present invention, in an assembling type safe in which a plurality of divided pieces are joined to form a safe body, a resin is interposed at the joining portion.
When a fire occurs and the heat is transferred to the joint and reaches a certain high temperature, the resin provided in the joint begins to melt, and the resin melts or approaches the opposing partner, narrowing the gap between the joints. As a result, heat and flames can be blocked from entering the safe body, improving the protective effect of the stored items.

[Brief description of drawings]

FIG. 1 is a plan sectional view showing an embodiment of a safe according to the present invention.

FIG. 2 is a front view of the embodiment.

FIG. 3 is a side sectional view of the above embodiment.

FIG. 4 is an enlarged side sectional view of an upper edge portion of the above embodiment.

FIG. 5 is an enlarged side sectional view of a left side edge portion of the above embodiment.

FIG. 6 is an enlarged side sectional view of a right side edge portion of the above embodiment.

FIG. 7 is a plan sectional view showing another embodiment of the safe according to the present invention.

FIG. 8 is a partial cross-sectional side view of the above embodiment.

FIG. 9 is a plan sectional view showing a main part of a modified embodiment of the safe according to the present invention.

FIG. 10 is a plan cross-sectional view showing the main parts of another modification of the safe according to the present invention.

FIG. 11 is a plan sectional view showing a main part of still another modified embodiment of the safe according to the present invention.

FIG. 12 is a plan sectional view showing a main part of still another modified embodiment of the safe according to the present invention.

FIG. 13 is a perspective view showing a main part of still another modified embodiment of the safe according to the present invention.

FIG. 14 is a plan sectional view showing still another modified embodiment of the safe according to the present invention.

FIG. 15 is an enlarged plan sectional view showing a main part of the embodiment.

[Explanation of symbols]

 10 Body Frame 20 Door 30 Overlapping Surface 32, 34 Resin 36, 38 Metal Plate 64, 66, 68, 70 Resin 86, 88 Resin 90, 92 Resin 122 Resin 146 Resin

Claims (2)

[Claims] 1. A safe, characterized in that resin is provided on an overlapping surface of a door frame and a main body frame into which the door fits. 2. A safe in which a plurality of divided pieces are joined together to form a safe body, and a resin is interposed in the joined portion.