JPH08214932A - Fireproof storage box - Google Patents

Abstract

PURPOSE: To provide a fireproof storage box with double interior walls to keep therein magnetic tapes, floppy disks, etc. CONSTITUTION: The first box 1 consists of walls which are soaked with nonflammable liquid. The second box 2 is installed inside the first box 1. The second box 2 consists of walls made of a moisture resistant, a moistureproof, and a thermal insulating materials. A gap of 5-30mm filled with a moisture resistant or a moistureproof and a thermal insulating elastic materials is formed between the first and the second boxes. With such constitution, the storage box can be light and portable, and the capacity can be relatively large, compared with its outer size.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refractory cabinet which can meet the conditions of an internal temperature of 52 ° C. or less and a humidity of 80% or less, which is a JIS standard for a special refractory cabinet for magnetic tapes and flexible disk cartridges, for 1 hour. .

[0002]

2. Description of the Related Art The JIS standard for a fireproof box for magnetic tapes, floppy disks, etc. is very strict, and it is required that the internal temperature is 52 ° C. or less, the humidity is 80% or less, and the fireproofing condition is 1 hour. . For this reason, as a conventional refractory box that satisfies this requirement, there is used a similar safe box in which the outer wall is surrounded by stone or concrete with a thickness of about 75 mm and weighs several hundred kilograms. for that reason,
The outer dimensions are large, the inner volume is small, it is difficult to carry and move, and due to the weight limitation of the building, it is not possible to install many such heavy refractories.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to make the inner volume relatively large with respect to the outer dimensions as compared with the conventional ones, and the total weight, The size can be made small enough to be carried,
Moreover, it is an object of the present invention to provide a fireproof storage that can satisfy the conditions of an internal temperature of 52 ° C. or less and a humidity of 80% or less, which is a JIS standard for a special fireproof warehouse for magnetic tapes and flexible disk cartridges, for 1 hour. To do.

[0004]

In order to solve the above problems, the present invention has a double structure of a primary storage and a secondary storage, and
A measure was taken by providing a space between them and interposing a moisture resistant or moisture proof, heat insulating material therebetween.

That is, according to the present invention, inside the primary storage which is surrounded by the wall material impregnated with the non-combustible liquid, the secondary storage which is surrounded by the wall material made of moisture resistant or moisture-proof and heat insulating material is provided. A fireproof storage characterized in that it is provided with air gaps of approximately equal width between the primary and secondary storages, and an elastic member having moisture resistance or moisture resistance and heat insulation is interposed therebetween. It provides a warehouse.

As a construction of the wall material of the primary storage, the outer and inner wall surfaces are made of metal plates such as iron plates, and a water-absorbing fireproof plate such as a calcareous plate is impregnated with 75% or more of an incombustible liquid between them. What was filled with can be used. The thickness of the entire wall material of the primary storage can be about 20 mm. The wall material of the secondary storage may be made of heat-resistant, moisture-resistant or moisture-proof material such as paulownia laminate, heat- and moisture-resistant resin, and has a thickness of about 15 mm. Further, as a moisture-proof or moisture-proof, heat-insulating elastic member filled in the space between the primary and secondary cabinets, glass fiber, cork, silicon or other inorganic and organic moisture-proof or moisture-proof, heat-insulating elastic members. A member formed into a layer having a thickness of about 5 to 30 mm can be used.

[0007]

When the fireproof storage is exposed to flames and flames, the temperature inside the primary storage can be kept within about 108 ° C for 1 hour due to the heat of vaporization of the incombustible liquid filled inside the wall of the primary storage. Yes, this vaporized and expanded water vapor is retained in the gap between the primary and secondary compartments by being blocked by the moisture-resistant or dehumidifying property, adiabatic elastic member filled between the primary compartment and the secondary compartment, It is possible to prevent external flames, smoke, hot air, etc. from entering the primary storage. As a result, the temperature and humidity inside the secondary storage can be suppressed to 52 ° C. or less and 80% or less by 1 hour fire resistance.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments in which it is applied to a portable fireproof storage. Here, FIG. 2 is a perspective view showing the appearance of the fireproof storage, and FIG. 1 is a perspective view showing a part of the fireproof storage. In this embodiment, the fireproof storage is a primary storage 1 constituting an outer casing of the fireproof storage, as shown in the figure,
The secondary storage 2 and the primary storage 1 that form the inner housing of the fireproof storage.
And a secondary storage compartment 2 interposed between the secondary storage compartment 2 and the secondary storage compartment 2 (in the case of the present embodiment, it is attached to the inside of the primary storage compartment 1), each of which is a main body portion 1a, 2a, 3a and a lid. Body part 1
b, 2b, 3b, which can be opened and closed via a lock 4. In the figure, 5 indicates a handle.

The total thickness of the primary storage 1 is, for example, 20 mm.
Approximately 25 mm, the outer and inner wall surfaces are made of an iron plate having a thickness of 0.5 mm, and a water-absorbing fireproof plate (thickness: 20 mm) such as a calcareous plate laminated between them is filled. 75% of non-combustible liquid consisting of water
The above is impregnated.

The secondary storage 2 is made of a moisture-proof or moisture-proof heat insulating material, such as a paulownia particle board, a heat-resistant plastic such as a fluororesin, a silicone resin, or the like, or a laminated board having a thickness of about 15 mm. Is used.

Between the primary storage and the secondary storage, a space having a thickness of approximately 5 to 30 mm and having a substantially equal thickness is formed around the entire circumference by the volume of the main body, and moisture or moisture resistance, adiabatic elastic member is formed in this space. The buffer layer 3 made of is interposed. Examples of the moisture-proof or moisture-proof and heat-insulating elastic members include inorganic or organic moisture-proof or moisture-proof and heat-insulating elastic members such as glass fiber, cork, and silicon.
What was shape | molded in the layer of 30 mm can be used. Therefore, the thickness of the entire wall surface of the fireproof storage is 45 mm to 6 mm.
It will be about 5 mm.

In a fireproof storage having such a structure, when exposed to flames, the internal heat of the primary storage is refractory to 10 hours by the heat of vaporization of the incombustible liquid filled in the wall of the primary storage.
It can be suppressed to 8 ° C or less, and the vaporized and expanded vapor is blocked by the moisture-resistant or moisture-proof, heat-insulating elastic member filled between the primary storage and the secondary storage, and the gap between the primary storage and the secondary storage Since it is filled with, it is possible to push out flames, smoke, hot air, etc. that try to enter from the outside. As a result, the temperature and humidity inside the secondary storage were 1 hour fireproof within 52 ° C, 80
% Or less, respectively.

A portable refractory cabinet as shown in FIGS. 1 and 2 was prepared as follows, and a special refractory cabinet for magnetic tapes and flexible disk cartridges J
A fire resistance test was conducted based on the IS standard. That is, as the primary storage 1, as shown in FIG. 3 (a), an iron plate having outer and inner wall surfaces with a thickness of 0.5 mm, and a laminated body of a calcareous plate in between were filled and impregnated with water as a noncombustible liquid at 75%. ,
The thickness of the entire wall is 20 mm, and the external dimensions are 400 mm x
Create a 300 mm x 200 mm one, use a 15 mm thick paulownia particle board as the secondary storage 2, and make an external dimension of 340 mm x 240 mm x 140 mm,
As the buffer layer 3 constituting the intermediate layer, glass fibers were formed into a layered shape having a thickness of 5 mm, which was adhered to the inner wall surface of the primary storage 1 to form a portable fireproof storage. Instead of this structure, for example, as shown in FIG.
A container such as a bag containing an incombustible liquid such as water may be built in the fireproof plate. In the illustrated example, the refractory plate may be divided into front and rear to form a recess, and an appropriate structure may be adopted such as fitting the water-containing container therein.

When a fire resistance test was conducted on this fireproof storage box based on the JIS standard for a magnetic tape and a special fireproof box for flexible disk cartridges, the temperature inside the primary storage box 1 could be suppressed to a maximum of 108 ° C. It was proved that this JIS standard could be far cleared within 180 ° C., and the temperature of the secondary storage 2 could be suppressed within 52 ° C. and humidity below 80%.

In the above embodiment, the portable fireproof storage has been described as an example, but the present invention is not limited to the above, and can be applied as a large stationary fireproof storage, and the office work piece. It may be possible to prevent theft even if it is light, even if it is light, by attaching it integrally to one place of the drawer of the sleeve desk and attaching a key to this drawer.

The fireproof storage of the present invention is particularly suitable for magnetic tapes,
It is suitable as a fireproof box for floppy disks, etc., but of course it can also be used as a normal fireproof safe. In the above embodiment, the elastic member is a material and structure that seals the water vapor that has entered the gap between the primary storage and the secondary storage to prevent it from entering the secondary storage side. It is preferable because it can be prevented. In this case, the elastic member may be fixed to the primary storage side or the secondary storage side and may be opened and closed in conjunction with this. Alternatively, the elastic member may be separated from the primary storage or the secondary storage, and may be wrapped and wrapped to cover the secondary storage. Of course, various design changes can be made within the scope of the present invention.

[0017]

As described above in detail, according to the refractory storage container of the present invention, the JIS standard 1 hour heat resistance temperature within 1
Since the secondary compartment is housed in the secondary compartment with heat resistance, moisture resistance, dehumidification resistance, and shock resistance, the steam vaporized from the primary compartment during a fire is stored in the primary compartment and the secondary compartment. It penetrates into the secondary chamber and is blocked by the elastic member to prevent it from entering the secondary storage. In addition, the steam filled in the gap prevents the entry of flames, smoke, and hot air from the outside. It can have sex. In addition, the weight can be reduced to one-fourth or less as compared with the conventional concrete, and the wall thickness can be reduced to one-half to one-third, so that the overall size can be reduced. Relatedly, the internal volume can be increased by as much as 20% to 40%. Therefore, for example, for portable use, approximately 40 mm x 300 mm
It is possible to make a product having a size of × 200 mm and a total weight of about 11 kg, and important documents such as a magnetic tape and a floppy disk can be put in this refractory storage box and transported by air. Further, since the fireproof storage of the present invention can reduce the weight to one fourth or less as compared with the conventional concrete fireproof storage, even in a building such as a building having a weight limit, the weight limit is limited. Any number can be provided without worrying about it.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a portable fireproof storage according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the outer appearance of a portable fireproof storage according to one embodiment of the present invention.

FIG. 3 (a) is a cross-sectional view of a water-absorbing refractory plate of a primary container in which a non-combustible liquid is absorbed, and FIG. 3 (b) is a partial cross-sectional view of a container in which water is sealed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Primary storage, 2 ... Secondary storage, 3 ... Buffer layer, 1a, 2a, 3a ... Main body part, 1b, 2b, 3b ... Lid part, 4 ... Lock, 5 ... Handle, 6 ... As an example of incombustible liquid Water, 7 ... container with water.

Claims (4)

[Claims] 1. A secondary storehouse surrounded by a wall material made of moisture resistant and heat insulating material is provided inside a primary storehouse surrounded by a wall material impregnated with an incombustible liquid, and the primary storehouse is also provided. A space with a substantially equal width is provided between the storage and the secondary storage, and an elastic member having moisture resistance or moisture resistance and heat insulation is interposed in this space. Heating is suppressed by evaporation, and the steam filled in the gap between the primary and secondary compartments is blocked by the elastic member from entering the secondary compartment, and it is possible to prevent the entry of hot air, flames, smoke, etc. from the outside. Characteristic fireproof storage. 2. The wall material of the primary storage comprises an outer wall surface and an inner wall surface made of metal plates, and a water-absorbing fireproof plate impregnated with 75% or more of an incombustible liquid interposed therebetween or a container containing water. The fireproof storage cabinet according to claim 1, characterized in that. 3. The wall material of the secondary storage is selected from paulownia laminate and heat and moisture resistant resin.
Fireproof storage described. 4. The refractory container according to claim 1, wherein the elastic member having moisture resistance, moisture resistance, and heat insulation is made of glass fiber, cork, silicone, or the like.