JP5464912B2 - Fire extinguisher container and fire extinguisher - Google Patents

Description

  The present invention relates to a fire extinguisher container and a fire extinguisher using the same.

Fire extinguishers have a national certification system based on the Fire Service Law, and can only be used if they pass this.
At present, as a portable fire extinguisher which is generally spread, a pressurized ABC powder fire extinguisher can be cited. The fire extinguisher container used for such a pressurized ABC powder fire extinguisher is metallic, and is excellent in pressure resistance and impact resistance.

However, the above-described pressurized ABC powder fire extinguisher has a drawback that it is difficult to carry even though it is portable because the fire extinguisher container is made of metal and thus increases its weight. In particular, women and the elderly have a heavy transportation burden, and in some cases they cannot be carried. In addition, a metal container requires a coating process such as painting in order to prevent a decrease in strength due to rust, and there are problems such as a complicated manufacturing process due to painting and an adverse effect on the environment.
For this reason, the weight reduction of a fire extinguisher and the omission of a painting process are desired.

On the other hand, attempts have been made to reduce the weight by making the fire extinguisher container into a resin (see, for example, Patent Document 1).
In addition, a synthetic resin container is used, and a synthetic resin container for fire extinguishers (see, for example, Patent Document 2) in which a steel wire is spirally wound on the outer peripheral surface, or a glass container on the outer periphery of a blow-molded plastic cylinder container. An outer cylinder of a fire extinguisher in which reinforcing fibers such as fibers are wound (for example, see Patent Document 3) is known.

JP-A 64-64678 Japanese Utility Model Publication No. 60-182069 Japanese Utility Model Publication No. 6-20546

However, in the fire extinguisher described in Patent Document 1, since the container is reduced in weight, it can be easily transported, but has a disadvantage that the pressure resistance and the impact resistance are extremely inferior compared with the iron container described above. is there.
In the fire extinguishers described in Patent Documents 2 and 3, it is difficult to manufacture the fire extinguisher because it is necessary to wind a steel wire or a reinforcing fiber around the outer periphery of the container. Further, although the container is made of resin, the weight of the steel wire and the reinforcing fiber is large, so that the weight reduction is insufficient. Furthermore, in the case of a resinized container, the strength does not decrease due to the occurrence of rust, but in a fire extinguisher that is stored for a long time outdoors or the like, the strength of the resin is deteriorated by ultraviolet rays or the like. There may be a problem of weather resistance.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a fire extinguisher container that is lightweight and excellent in weather resistance, pressure resistance, and impact resistance, and a fire extinguisher using the same.

  The inventors of the present invention have intensively studied to solve the above-mentioned problems, and select a resin excellent in pressure resistance and impact resistance, and use it for a main part of a fire extinguisher container, and coat it with a shrink label. It has been found that the above problems can be solved, and the present invention has been completed.

That is, the present invention comprises (1) a fire extinguisher container used for a pressure-type fire extinguisher, comprising a main body portion made of a polymer alloy using polyphenylene ether, and a shrink label covering the main body portion. In addition , the breaking pressure of the main body portion at a water pressure of 1 minute is 4.0 MPa or more, and has a UV-absorbing colored layer printed on the entire back surface of the transparent cylindrical heat-shrink film, and The shrink label having an ultraviolet transmittance of less than 50% is in close contact with the main body so that the back surface is inside, and prevents the deterioration of the weather resistance of the main body. Is a hemispherical shape, and further includes a bottom cover material for standing the main body, and a portion of the shrink label is present in the fire extinguisher container sandwiched between the main body and the bottom cover material.

The present invention has ( 2 ) a recess at the bottom of the main body , a protrusion at the inner wall of the bottom cover material, and the protrusion is fitted into the recess to fix the bottom cover material to the main body. It exists in the container for fire extinguishers as described in said (1).

This invention exists in the container for fire extinguishers of the said (2) description in which the restraint part which does not have a hollow in ( 3 ) hollow part is provided .

This invention exists in the container for fire extinguishers as described in any one of said (1) -(3) which ( 4 ) main-body parts are obtained by blow molding.

(5) The fire extinguisher container according to any one of (1) to ( 4 ) above, in which a fire extinguisher is accommodated, and a gas container provided in the fire extinguisher container and filled with a high-pressure gas An operation lever attached to the fire extinguisher container, a siphon tube communicating with the inside of the fire extinguisher container, and a horn for injecting a fire extinguishing agent through the siphon tube, and operating the operation lever Thus, the high-pressure gas pressurizes the inside of the fire extinguisher container, and the fire extinguishing agent is present in the fire extinguisher container described in (2) above, in which a restraint portion having no depression in the injection depression portion is provided .

This invention exists in the fire extinguisher of the said ( 5 ) description whose ( 6 ) fire extinguisher is powder.

  The container for fire extinguishers of the present invention can dramatically improve pressure resistance and impact resistance by making the main body portion made of an amorphous resin. In addition to this, the fire extinguisher container of the present invention can improve the weather resistance without covering the main body with a shrink label, and can be stored outdoors for a long time. Moreover, the pressure resistance and the impact resistance can be further improved by covering the main body portion with the shrink label. Furthermore, the fire extinguisher itself can be decorated by drawing letters on the shrink labels or coloring them. In addition, it is preferable that the said shrink label is closely_contact | adhered to the main-body part.

  In the fire extinguisher container, the pressure resistance is further improved when the bottom of the main body is hemispherical. In this case, since the fire extinguisher container cannot be stood, it is preferable to provide the bottom cover material at the bottom.

  The said fire extinguisher container can fix a shrink label reliably, when a part of shrink label is clamped by the main-body part and the bottom cover material. Moreover, the main body can be reliably covered with the shrink label, and the main body can be prevented from being exposed to being directly irradiated with ultraviolet rays from sunlight or the like.

  In the fire extinguisher container, when the amorphous resin is a modified polyphenylene ether, the pressure resistance and impact resistance can be further improved. Moreover, when a main-body part is obtained by blow molding, manufacture of a main-body part becomes easy.

  The method for manufacturing a fire extinguisher container according to the present invention has an advantage that a lightweight main body can be easily formed because the main body is formed by direct blow molding. In addition, since the main body is inserted into a cylindrical shrink label, and a covering process is provided for tightly attaching the shrink label to the main body, the weight does not increase, and a process such as painting is not required and manufacturing is easy. .

  Since the fire extinguisher of the present invention includes the above-described fire extinguisher container, the fire extinguisher is lightweight and excellent in weather resistance, pressure resistance, and impact resistance. Further, when the extinguishing agent is powder, it can be stored stably for a longer period of time.

FIG. 1 is a cross-sectional view showing an embodiment of a fire extinguisher container according to the present invention. FIG. 2 is a chart showing the manufacturing process of the fire extinguisher container according to the present embodiment. (A)-(c) of FIG. 3 is a schematic sectional drawing which shows the process of the direct blow molding method in the manufacturing method of the container for fire extinguishers concerning this embodiment. (A) of FIG. 4 is a side view which shows the coating | coated process in the manufacturing method of the container for fire extinguishers concerning this embodiment, (b) is a top view of (a). FIG. 5 is a schematic view showing a fitting step in the method for manufacturing a fire extinguisher container according to the present embodiment. FIG. 6 is a cross-sectional view showing an embodiment of a fire extinguisher according to the present invention. FIG. 7 is a cross-sectional view showing another embodiment of the fire extinguisher according to the present invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified. Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

FIG. 1 is a cross-sectional view showing an embodiment of a fire extinguisher container according to the present invention.
As shown in FIG. 1, the fire extinguisher container 10 according to the present embodiment stands the main body 1 made of an amorphous resin, the shrink label 2 covering the outer periphery of the main body 1, and the main body 1. Bottom cover material 3.

  The fire extinguisher container 10 according to the present embodiment can contain a fire extinguisher, and can be used as a fire extinguisher by attaching a known operation lever or the like to the upper part of the main body 1. Details of the fire extinguisher will be described later.

  Hereinafter, the main body 1, the shrink label 2, and the bottom cover material 3 included in the fire extinguisher container 10 will be described in more detail.

(Main body)
The main body 1 is made of an amorphous resin and is a part that directly contains a fire extinguishing agent.
The main body 1 includes a cylindrical body 1b, a hemispherical bottom 1c provided at the lower part of the body 1b, and a screwing part 1a provided at the upper part of the body 1b. That is, as for the main-body part 1, the screwing part 1a, the trunk | drum 1b, and the bottom part 1c are united in this order.

The main body 1 can be screwed with a known operation lever via a screwing portion 1a.
On the other hand, the bottom portion 1c has a slightly smaller diameter than the body portion 1b in order to fit a bottom cover material 3 described later. The bottom 1c is provided with a recess 5 for fixing the bottom cover material 3.

  The depressions 5 are linear, and a plurality of depressions 5 are provided on the outer periphery of the main body 1 in the horizontal direction and in the same plane. And between each hollow part 5, the restraint part P without a hollow is provided. Thereby, the lateral shift | offset | difference of the bottom cover material 3 mentioned later is prevented.

The main body 1 is blow-molded using an amorphous resin so that the screwing portion 1a, the body portion 1b, and the bottom portion 1c are integrally manufactured at the same time.
Examples of such blow molding include a direct blow molding method and a biaxial stretch blow molding method. Among these, it is preferable to shape | mold the main-body part 1 with a direct blow molding method from a viewpoint that a lightweight main-body part can be formed easily. The details of the manufacturing method (molding method) will be described later.

Resins used as the amorphous resin include polyamide (PA), amorphous polyarylate (PAR), polycarbonate (PC), polyethersulfone (PES), polymethyl methacrylate (PMMA), and polyphenylene ether (PPE). , Polystyrene (PS), polysulfone (PSF), or those obtained by polymerizing them.
Among these, the amorphous resin is preferably a polymer alloy using polyphenylene ether (PPE) from the viewpoint of heat resistance and impact resistance. Specifically, a polymer alloy (PPE / PS alloy) of polyphenylene ether (PPE) and polystyrene (PS), a polymer alloy (PPE / HIPS alloy) of polyphenylene ether (PPE) and high-impact polystyrene (HIPS), Alternatively, modified polyphenylene ether such as polymer alloy (PPE / PA alloy) of polyphenylene ether (PPE) and polyamide (PA) can be used.
Among these, the amorphous resin is particularly preferably a PPE / PS alloy having extremely excellent pressure resistance.

As for the wall thickness of the main-body part 1, it is preferable that average thickness is 2.0 mm or more, and it is more preferable that it is 2.5-4.5 mm.
When the average wall thickness is less than 2.0 mm, the pressure resistance tends to be insufficient as compared with the case where the wall thickness is within the above range, and when the wall thickness exceeds 5.0 mm, Compared with the case where the wall thickness is within the above range, not only the cost is increased, but also the weight is increased and it is difficult to carry the fire extinguisher.

The breaking pressure of the main body 1 is preferably 4.0 MPa or more.
In this case, even if the high pressure gas in a general fire extinguisher pressurizes the inside of the fire extinguisher container, the fire extinguisher container can be reliably prevented from being deformed.

The flexural modulus of the thermoplastic resin constituting the main body 1 is preferably 2000 Mpa or more, and more preferably 2000 to 5000 MPa. The flexural modulus is a value measured according to ASTM D790.
When the bending elastic modulus is less than 2000 MPa, the pressure resistance tends to be inferior compared to the case where the bending elastic modulus is within the above range, and there is a possibility that permanent deformation occurs in the body portion 1b with respect to the pressure.

The bending strength of the main body 1 is preferably 70 MPa or more, and more preferably 70 to 95 MPa. The bending strength is a value measured according to ASTM D790.
When the bending strength is less than 70 MPa, the pressure strength tends to be inferior compared to the case where the bending strength is within the above range, and cracking easily occurs with respect to the pressure.

The Izod impact strength of the main body 1 is preferably 90 J / m or more, and more preferably 90 to 150 J / m. The tensile strength is a value measured according to ASTM D256 (with notch).
If the Izod impact strength is less than 90 MPa, the Izod impact strength tends to be inferior in impact resistance compared to the case where the Izod impact strength is within the above range, and the main body 1 may be ruptured due to dropping or the like.

(Shrink label)
The shrink label 2 covers the outer periphery of the main body 1. More specifically, the main body part 1 is closely attached so as to cover the entire surface except for the lower end of the screw part 1a and the bottom part 1c.
In the fire extinguisher container 10, since the main body 1 is covered with the shrink label 2, it is possible to prevent the pressure resistance and the impact resistance from being deteriorated even when it is stored outdoors for a long period of time. Can do.
Moreover, exposure of the main body 1 can be prevented and direct irradiation with ultraviolet rays from sunlight or the like can be prevented, and deterioration of the main body 1 can be suitably prevented.

At this time, the shrink label 2 is preferably adhered to the outer periphery of the main body 1. That is, the shrink label 2 made of a cylindrical heat-shrinkable film is preferably used.
By using the cylindrical shrink label 2 made of a heat-shrinkable film, the main body 1 can be easily covered in a close contact state, and therefore, manufacture is easy. Also, the weight does not increase.

The shrink label 2 is made of polyester, polyurethane, nylon, polyethylene, polypropylene, or the like, and a single-layer or multilayer transparent film is used.
Among these, the shrink label 2 is preferably a heat-shrinkable film made of polyester from the viewpoint of versatility.

  The shrink label 2 is preferably printed on the entire surface. In other words, the shrink label 2 has a cylindrical shape so that the back side of the transparent heat-shrinkable film is printed on the back side of the body 1 so that various indications are displayed on the main body 1 and ultraviolet rays from the outside are blocked. It is preferable to be formed.

It is preferable to provide an ultraviolet absorbing colored layer on the back side of the shrink label 2.
Such a UV-absorbing colored layer preferably has a low UV transmittance. Specifically, the ultraviolet transmittance of the shrink label 2 having the ultraviolet absorbing colored layer is preferably less than 50%, more preferably less than 10%, and even more preferably less than 3%.

Examples of the ultraviolet absorbing colored layer include a layer coated with a colorant by printing, a layer coated with an ultraviolet absorber, a layer deposited with an inorganic material, a layer laminated with an ultraviolet absorbing film, or a combination thereof. Layer and the like.
In particular, the UV-absorbing colored layer is preferably one in which a coloring material is applied to the entire back surface of the shrink label 2 by printing.

  The shrink label 2 may be subjected to multilayer printing on the back side. By printing a notice, etc., on the surface side and printing with an ink containing an ultraviolet absorber or black ink on the surface, it is possible to suitably block the transmission of ultraviolet rays to the main body 1. . In addition, you may make the resin itself which comprises a heat-shrinkable film contain additives, such as a coloring agent and a ultraviolet absorber.

  By the way, as an example of decoration of the fire extinguisher container 10, various patterns are displayed on the main body 1, and characters and the like are printed on the back surface of the transparent heat-shrinkable film, and the back surface is the inside. It is done.

(Bottom cover material)
The bottom cover material 3 is attached to the bottom 1c of the main body 1 in order to make the main body 1 stand.
In the fire extinguisher container 10, the bottom cover material 3 is attached, so that the fire extinguisher container 10 can be erected.

The bottom cover material 3 has a cylindrical shape and has an annular protrusion 3a on the inner wall.
In the bottom cover material 3, the protrusion 3 a is fitted in the recess 5 of the bottom 1 c of the main body 1.
Thereby, the bottom cover material 3 is securely fixed to the main body 1.

In the fire extinguisher container 10, a part of the shrink label 2 is sandwiched between the main body 1 and the bottom cover material 3. For this reason, the container 10 for fire extinguishers can fix the shrink label 2 reliably. Although the shrink label 2 may be peeled off at the lower end, the shrink label 2 is pressed against the main body 1 by the bottom cover material 3 and therefore does not peel off. In particular, since the shrink label 2 is dropped into the recessed portion 5 by the protruding portion 3a of the bottom cover material 3, it is more reliably fixed.
Further, since the bottom 1 c of the hemispherical main body 1 is covered with the bottom cover material 3, the bottom 1 c may not be covered with the shrink label 2.

In this case, impact resistance or weather resistance is ensured by the bottom cover material 3. That is, the bottom cover material 3 can prevent the main body 1 from being exposed and prevent direct irradiation with ultraviolet rays from sunlight or the like. Incidentally, since the bottom 1c of the main body 1 is hemispherical, it has better pressure resistance than the body 1b.
Further, as will be described later, the shrink label 2 may be formed in a cylindrical shape, the main body 1 may be inserted, and the outer periphery of the main body 1 may be covered in close contact with each other, which facilitates manufacture.

As described above, the fire extinguisher container 10 according to the present embodiment is configured such that the main body 1 is made of an amorphous resin, so that the main body 1 can be applied even when high-pressure gas pressurizes the fire extinguisher container. Can be prevented from being damaged or deformed, and the outer periphery of the main body 1 is covered with the shrink label 2 to improve the weather resistance and prevent deterioration of the main body 1 due to ultraviolet rays, etc. Even when stored for a period of time, damage or deformation of the main body 1 can be reliably prevented.
From this, according to the said fire extinguisher container 10, it will be excellent in pressure resistance and impact resistance.

Next, the manufacturing method of the fire extinguisher container 10 will be described.
FIG. 2 is a chart showing the manufacturing process of the fire extinguisher container according to the present embodiment.
As shown in FIG. 2, the manufacturing method of the fire extinguisher container 10 according to the present embodiment includes a molding step S1 for forming the main body 1 by a direct blow molding method using an amorphous resin, and the main body 1 is formed in a cylindrical shape. A covering step S2 for inserting the shrink label 2 into the shrink label 2 and a fitting step S3 for fitting the bottom cover material 3 to the lower part of the main body 1 are provided.

  In the method for manufacturing a fire extinguisher container according to the present invention, the main body portion 1 is formed by blow molding, and the main body portion 1 is covered with a cylindrical shrink label 2 that has been separately printed, and the shrink label 2 is thermally contracted. Therefore, the weight does not increase and the manufacture is easy.

  Hereinafter, the molding step S1, the covering step S2, and the fitting step S3 included in the method for manufacturing a fire extinguisher container according to the present embodiment will be described in more detail.

(Molding process)
The molding step S1 is a step of forming the main body 1 by a direct blow molding method.
(A)-(c) of FIG. 3 is a schematic sectional drawing which shows the process of the direct blow molding method in the manufacturing method of the container for fire extinguishers concerning this embodiment.

First, in the molding step S1, amorphous resin pellets are melted and kneaded by an unillustrated extruder.
And as shown to (a) of FIG. 3, it is set as the cylindrical parison 22 by extruding the molten amorphous resin from the extrusion head 21 in the shape of a tube, putting weak air, and pre-blowing.

  Next, as shown in FIG. 3B, the parison 22 is sandwiched between molds 23 and clamped, high pressure air is blown into the parison 22 in the direction of arrow A, and the parison 22 is moved along the mold 23. It is inflated so as to have a shape (the shape of the main body 1 of the fire extinguisher container 10).

  Then, after cooling and solidifying the amorphous resin, the main body 1 is obtained by opening and removing the mold 23 as shown in FIG.

(Coating process)
The covering step S2 is a step for covering the main body 1 with the shrink label 2.
(A) of FIG. 4 is a side view which shows the coating | coated process in the manufacturing method of the container for fire extinguishers concerning this embodiment, (b) is a top view of (a).

As shown in FIGS. 4A and 4B, in the covering step S <b> 2, the main body 1 is completely covered with the cylindrical shrink label 2 so that the body 1 b of the main body 1 is completely covered. insert.
And the thing by which the shrink label 2 was coat | covered by the main-body part 1 is obtained by heat-shrinking the shrink label 2 to the main-body part 1 from the outer side, and making it closely_contact | adhere.

(Mating process)
The fitting step S <b> 3 is a step of fitting the bottom cover material 3 to the lower part of the main body 1.
FIG. 5 is a schematic view showing a fitting step in the method for manufacturing a fire extinguisher container according to the present embodiment.

As shown in FIG. 5, in the fitting step S <b> 3, the bottom cover material 3 is fitted to the bottom 1 c of the main body 1.
At this time, the bottom cover material 3 is fitted on the wall surface of the hemispherical bottom portion 1c so that the protrusion 3a of the bottom cover material 3 is fitted in the recess portion 5 of the bottom portion 1c described above.
In this way, the fire extinguisher container 10 is obtained.

Next, the fire extinguisher which concerns on this invention is demonstrated.
The fire extinguisher container 10 described above is used for the fire extinguisher according to the present invention.
FIG. 6 is a cross-sectional view showing an embodiment of a fire extinguisher according to the present invention.
As shown in FIG. 6, the fire extinguisher 20 according to the present embodiment includes a fire extinguisher container 10 containing a fire extinguishing agent, a gas container 31 provided in the fire extinguisher container 10 and filled with a high-pressure gas, An operation lever 32 attached to the fire extinguisher container 10, a siphon pipe 35 communicating with the inside of the fire extinguisher container 10, and a horn 34 for injecting a fire extinguishing agent 33 through the siphon pipe 35 are provided.

The fire extinguisher 20 according to the present embodiment is preferably a pressurized fire extinguisher from the viewpoint of durability.
For this reason, it is preferable that the fire extinguisher used is a powder.

  As a fire extinguisher used for the fire extinguisher 20, a well-known thing is used, for example, what has ammonium dihydrogen phosphate as a main component, what has sodium hydrogen carbonate as a main component, and has potassium hydrogen carbonate as a main component. And the like.

  In the fire extinguisher 20, a cap 37 provided on the operation lever 32 is screwed into the screwing portion 1 a of the main body 1. Thereby, the operation lever 32 is attached to the main body 1.

  In the fire extinguisher 20, the safety plug 36 is pulled out and the operation lever 32 is operated, so that the high pressure gas pressurizes the inside of the fire extinguisher container 10, and the fire extinguishing agent 33 is injected from the horn 34 through the siphon pipe 35. It has become.

  Since the fire extinguisher 20 according to the present embodiment includes the fire extinguisher container 10 described above, the fire extinguisher 20 is lightweight and has excellent pressure resistance and impact resistance. Moreover, when the fire extinguisher 33 is a powder, there is an advantage that it can be stored stably for a longer period of time.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

  For example, in the fire extinguisher container 10 according to the present embodiment, the bottom of the main body 1 is hemispherical, but the base of the hemisphere is flat so that the main body 1 can be raised. It may be a shape. In this case, the shrink label 2 preferably covers the entire bottom portion of the main body 1.

The fire extinguisher 20 is a pressurized fire extinguisher, but the fire extinguisher container 10 may be used as an accumulator fire extinguisher.
FIG. 7 is a cross-sectional view showing another embodiment of the fire extinguisher according to the present invention.
The fire extinguisher 30 shown in FIG. 7 includes a fire extinguisher container 10 containing a fire extinguisher, an operation lever 32a attached to the fire extinguisher container 10, a siphon pipe 35a communicating with the inside of the fire extinguisher container 10, and a siphon pipe. And a horn 34a for injecting a fire extinguishing agent 33a through 35a.

  In the fire extinguisher 30, the inside of the fire extinguisher container 10 has already been pressurized, and the fire extinguisher 33a is jetted from the horn 34a through the siphon pipe 35a by removing the safety plug 36a and operating the operation lever 32a. It is like that.

In this case, as a fire extinguisher, in addition to a powder system, water and a foam-type fire extinguisher can also be used.
Examples of water and foam fire extinguishing agents include pure water, potassium carbonate, fluorine surfactant, aluminum sulfate, carbon dioxide, and halon 1301. Can be mentioned.

  EXAMPLES Hereinafter, although this invention is demonstrated more concretely based on an Example and a comparative example, this invention is not limited to a following example.

Example 1
A direct blow molding method shown in FIGS. 3A to 3C using a modified polyphenylene ether resin (non-crystalline resin, manufactured by Asahi Kasei Chemicals Corporation, trade name: Zylon 600H), which is a polymer alloy of polyphenylene ether and polystyrene. Thus, the main body was created.
The average wall thickness (wall thickness) of the obtained main body portion was 2.6 mm (minimum wall thickness 2.4 mm, maximum wall thickness 3.0 mm), and the volume was 1.6 liters.

  Next, as shown in FIGS. 4 (a) and 4 (b), a shrink label made of polyester having the entire surface printed with a coloring material as a UV-absorbing colored layer is adhered to the main body to attach the main body. A sample of a fire extinguisher container was obtained by covering and attaching a bottom cover material as shown in FIG.

(Example 2)
A sample of a fire extinguisher container was obtained in the same manner as in Example 1 except that the average wall thickness of the main body was 4.0 mm (minimum wall thickness 3.8 mm, maximum wall thickness 4.7 mm).

(Example 3)
Instead of the modified polyphenylene ether resin, a modified polyphenylene ether resin (non-crystalline resin, manufactured by Asahi Kasei Chemicals Co., Ltd., trade name: Zylon A0100), which is a polymer alloy of polyphenylene ether and polyamide, is used. Was set to 3.5 mm (minimum wall thickness 3.1 mm, maximum wall thickness 3.8 mm) in the same manner as in Example 1 to obtain a sample of a fire extinguisher container.

Example 4
A sample of a fire extinguisher container was obtained in the same manner as in Example 1 except that the average wall thickness of the wall of the main body was 2.0 mm (minimum thickness 1.8 mm, maximum thickness 2.4 mm).

(Example 5)
A sample of a fire extinguisher container was obtained in the same manner as in Example 1 except that polycarbonate resin (amorphous resin, manufactured by Sabic, trade name: Lexan PK2870) was used instead of the modified polyphenylene ether resin.

(Example 6)
Instead of the modified polyphenylene ether resin, a polymer alloy of polycarbonate (PC) and polybutylene terephthalate (PBT) (manufactured by Sabic, trade name: Xenoy X6800BM) is used, and the average wall thickness of the main body is 4.0 mm (minimum) Except for having a wall thickness of 3.8 mm and a maximum wall thickness of 4.7 mm), a sample of a fire extinguisher container was obtained in the same manner as in Example 1.

(Comparative Example 1)
A sample of a fire extinguisher container was obtained in the same manner as in Example 1 except that a high-density polyethylene resin (crystalline resin, manufactured by Nippon Polyethylene Co., Ltd., trade name: Novatec HB111R) was used instead of the modified polyphenylene ether resin. It was.

(Comparative Example 2)
A sample of a fire extinguisher container was obtained in the same manner as in Example 1 except that the shrink label was not used.

(Comparative Example 3)
A sample of a fire extinguisher container was obtained in the same manner as in Example 5 except that the shrink label was not used.

(Evaluation method)
1. Pressure resistance test The fire extinguisher container samples obtained in Examples 1 to 6 and Comparative Examples 1 to 3 were filled with water, and a water pressure of 2 MPa was applied for 5 minutes. The state of the subsequent samples was confirmed with sight.
Similarly, a water pressure of 4 MPa was applied for 1 minute. The state of the subsequent samples was confirmed with sight.

The evaluation criteria by silent vision are “○” when no deformation / distortion or crack occurs in the sample, and “△” when the sample is distorted or cracked. The case where cracks occurred and water leaked was designated as “x”.
The obtained results are shown in Table 1.

2. Weather resistance test In order to confirm the decrease in pressure resistance due to ultraviolet deterioration of the fire extinguisher container, after irradiation for 1000 hours in accordance with JIS K7350-2 using a xenon weather resistance tester, water pressure is 4 MPa in the above pressure test. Was applied for 1 minute, and the evaluation was performed according to the same evaluation criteria.
The obtained results are shown in Table 1.

[Table 1]

2. Impact resistance test Using a sample of the fire extinguisher container sample obtained in Examples 1 to 6 with printed characters on the shrink label, the printed surface is brought into close contact with the main body 1 and the sample is placed sideways. Fixed on the table. Then, a steel ball having a diameter of 25 mm was attached to the tip of a 300 g weight, and the steel ball was dropped from a height of 50 cm above the printed portion of the wall surface of the sample. The state of the subsequent samples was confirmed with sight. In addition, the material of a steel ball used what conforms to JISB1501.

As the evaluation criteria by silent vision, “◯” indicates that the character is not distorted at all, “Δ” indicates that the character is slightly distorted, and “X” indicates that the character is distorted.
The obtained results are shown in Table 2.

[Table 2]

From these tests, it was found that the fire extinguisher containers obtained in Examples 1 to 6 were excellent in pressure resistance and impact resistance. On the other hand, the fire extinguisher containers obtained in Comparative Examples 1 to 3 not according to the present invention were insufficient in pressure resistance and impact resistance.
Moreover, it turned out that the container for fire extinguishers which used PPE / PS and PPE / PA as an amorphous resin among the containers for fire extinguishers obtained in Examples 1-6 is extremely excellent in pressure resistance and impact resistance. .

  The fire extinguisher container according to the present invention can accommodate a fire extinguisher and can be used as a fire extinguisher by attaching a known operation lever or the like to the upper part of the main body 1. Moreover, since the fire extinguisher container according to the present invention is excellent in weather resistance, pressure resistance and impact resistance, it can be used in a fire extinguisher instead of a conventional iron container.

DESCRIPTION OF SYMBOLS 1 ... Main-body part 1a ... Screwing part 1b ... Body part 1c ... Bottom part 2 ... Shrink label 3 ... Bottom cover material 3a ... Projection part 5 ... Depression part 10 ... Fire extinguisher container 20, 30 ... Fire extinguisher 21 ... Extrusion head 22 ... Parison 23 ... Mold 31 ... Gas container 32, 32a ... Control lever 33, 33a ..Extinguishing agent 34, 34a ... Horn 35, 35a ... Siphon tube 36, 36a ... Safety stopper 37 ... Cap P ... Detention part S1 ... Molding process S2 ... Laminate Process S3 ... Fitting process

Claims (6)

In a fire extinguisher container used for a pressurized fire extinguisher,
A main body made of a polymer alloy using polyphenylene ether ;
A shrink label covering the main body,
Comprising:
The breaking pressure of the main body at a water pressure of 1 minute is 4.0 MPa or more,
The shrink label having an ultraviolet-absorbing colored layer printed on the entire back surface of a transparent cylindrical heat-shrinkable film and having an ultraviolet transmittance of less than 50% so that the back surface is on the inside. Is closely attached to the main body, and prevents deterioration of the weather resistance of the main body ,
The bottom of the main body is hemispherical;
It further comprises a bottom cover material for raising the main body,
A portion of the shrink label is sandwiched between the main body and the bottom cover material. The bottom of the main body has a recess, the inner wall of the bottom cover material has a protrusion,
2. The fire extinguisher container according to claim 1, wherein the protrusion is fitted into the recess and the bottom cover material is fixed to the main body. The fire extinguisher container according to claim 2, wherein a restraint portion having no recess is provided in the recess . The fire extinguisher container according to any one of claims 1 to 3, wherein the main body is obtained by blow molding. The fire extinguisher container according to any one of claims 1 to 4 , wherein a fire extinguisher is accommodated,
A gas container provided in the fire extinguisher container and filled with high-pressure gas;
An operating lever attached to the fire extinguisher container;
A siphon tube communicating with the inside of the fire extinguisher container;
A horn for injecting the fire extinguishing agent through the siphon tube;
With
A fire extinguisher in which the high pressure gas pressurizes the inside of the fire extinguisher container by operating the operation lever, and the fire extinguisher is injected from the horn.   The fire extinguisher according to claim 5, wherein the extinguishing agent is powder.

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