KR102589513B1 - Fire extinguishers and methods of manufacturing them - Google Patents

Abstract

A fire extinguisher and a method of manufacturing a fire extinguisher are provided in which, when a fixing member is welded to a pressure-resistant container made of an aluminum alloy material, the pressure-resistant container is not damaged by the weld joint during use.
In the fire extinguisher of the present invention, a joint portion 30 mainly made by melting the fastening material 20 is formed between the fastening material 20 and the pressure-resistant container 10, and when an excessive load is applied to the mounting port, the pressure-resistant container 10 Before peeling together with the temporary joint 30, any of the following may occur: peeling of the fixing material 20 from the pressure vessel 10, rupture of the fixing material 20, separation of the fixing material 20 from the mounting fixture, and destruction of the mounting fixture. It is characterized by causing one.

Description

Fire extinguishers and methods of manufacturing them

The present invention relates to a fire extinguisher and a method of manufacturing the fire extinguisher in which the pressure-resistant container containing the fire extinguishing agent is made of an aluminum alloy material.

Patent Document 1 proposes that, in a fire extinguisher in which the pressure-resistant container containing the fire extinguishing agent is made of an aluminum alloy material, a hanger as a mounting device is welded and fixed to the pressure-resistant container.

Japanese Patent Laid-Open No. 2012-161504

Patent Document 1 provides a fixing piece portion on a hanger, spot welding this fixing portion portion and a pressure-resistant container, and firmly fixing the hanger to the pressure-resistant container.

However, when the pressure-resistant container is made of an aluminum alloy material, the strength is lower than that of conventional iron materials, so if excessive weight is applied to the hanger, there is a possibility that the pressure-resistant container may be damaged.

Therefore, the purpose of the present invention is to provide a fire extinguisher and a method of manufacturing the fire extinguisher that, when a fixing member is welded to a pressure-resistant container made of an aluminum alloy material, does not damage the pressure-resistant container due to this welding during use. do.

The fire extinguisher of the present invention according to claim 1 is a fire extinguisher in which a pressure-resistant container containing a fire extinguishing agent is made of an aluminum alloy material, a fixing material is welded and joined to the pressure-resistant container, and a mounting device is attached to the fixing material, wherein the fixing material A joint mainly composed of melting is formed between the fixing material and the pressure vessel, and when an excessive load is applied to the mounting tool, the fixing material is separated from the pressure vessel before the pressure vessel peels off together with the joint. , characterized in that it causes any one of the following: fracture in the fixture, separation of the fixture from the fixture, and destruction of the fixture.

The present invention according to claim 2 is characterized in that, in the fire extinguisher according to claim 1, the fixing material is made of a material different from that of the pressure-resistant container.

The present invention according to claim 3 is characterized in that, in the fire extinguisher according to claim 1, the fixing material is made of a material softer than the pressure-resistant container.

The present invention as set forth in claim 4 is the fire extinguisher according to any one of claims 1 to 3, wherein a groove or notch is formed in the fixing member.

The present invention according to claim 5 is characterized in that, in the fire extinguisher according to claim 4, the groove is a spiral groove.

The present invention according to claim 6 is characterized in that, in the fire extinguisher according to any one of claims 1 to 5, the mounting device is made of a resin material.

The present invention according to claim 7 is characterized in that, in the fire extinguisher according to any one of claims 1 to 6, marks are not caused by the joint portion on the inner surface of the pressure-resistant container.

The present invention as set forth in claim 8 is the fire extinguisher according to any one of claims 1 to 7, wherein the mounting device is at least one of a hanger, a hose support, and a skirt. It is characterized by

The method of manufacturing a fire extinguisher of the present invention as described in claim 9 is a method of manufacturing a fire extinguisher in which a pressure-resistant container containing a fire extinguishing agent is made of an aluminum alloy material, and a fixing member for attaching a mounting device is welded and joined to the pressure-resistant container, an abutting process of bringing the fixing material into contact with the pressure-resistant vessel; a melting process of melting the fixing material by applying electricity to the fixing material after the abutting process; and at least in the melting process, forcing the fixing material into the pressure-resistant container. In the contacting process, the fixture axis of the fixture is disposed toward the virtual vessel axis of the pressure vessel, and in the pressing process, the fixture is positioned toward the virtual vessel axis of the pressure vessel. It is characterized by pressurizing towards.

The present invention in claim 10 is characterized in that, in the method for manufacturing a fire extinguisher according to claim 9, the joint formed mainly by melting the fixing material is not allowed to reach the inner surface of the pressure vessel.

The present invention as recited in claim 11, in the method for manufacturing a fire extinguisher according to claim 9 or 10, includes a foreign matter removal step of removing dirt or rust from the outer surface of the pressure vessel at least at a position where the fixing material is contacted before the contact step. It is characterized by having a.

The present invention recited in claim 12 is characterized in that, in the method of manufacturing a fire extinguisher recited in any one of claims 9 to 11, there is a painting step of painting the outer surface of the pressure-resistant container after the pressurization step.

The present invention described in claim 13 is a method for manufacturing a fire extinguisher according to any one of claims 9 to 12, which includes forming an aluminum preservative resin layer on the inner surface of the pressure vessel before the contacting process. It is characterized by having a process.

The present invention according to claim 14 is a method for manufacturing a fire extinguisher according to claim 9, wherein the fixing material includes a first fixing material and a second fixing material, and for the first fixing material, the welding step, the melting step, and the After performing the pressurizing process, the pressure-resistant container is rotated at a predetermined angle, and after the pressure-resistant container is rotated at the predetermined angle, the contacting process, the melting process, and the pressurizing process are performed on the second fixing member. do.

According to the fire extinguisher of the present invention, when an excessive load is applied to the mounting device, the pressure-resistant container does not peel off together with the joint portion, and safety during use can be improved.

1 is a configuration diagram of a fire extinguisher and a pressure-resistant container according to an embodiment of the present invention.
Fig. 2 is an explanatory diagram showing welding joints of fixing materials in the same fire extinguisher.
Fig. 3 is an explanatory diagram showing welding joints of a plurality of fixing materials in the fire extinguisher.
Figure 4 is a perspective view of the main part showing the fire extinguisher in which two fixing members are joined together.
Fig. 5 is an explanatory diagram showing a case where an excessive load is applied to the fixture of the fire extinguisher.
Figure 6 is a perspective view of the main part showing the fire extinguisher with a hanger mounted on a fixture as a mounting device.
Fig. 7 is a configuration diagram showing a hanger as a mounting device to be attached to the fire extinguisher.
Fig. 8 is an explanatory diagram showing a method of attaching a mounting tool to a fixture in the fire extinguisher.
Fig. 9 is an explanatory diagram showing a case where an excessive load is applied to the attachment of the fire extinguisher.

In the fire extinguisher according to the first embodiment of the present invention, a joint mainly made by melting the fixing material is formed between the fixing material and the pressure-resistant vessel, and when an excessive load is applied to the mounting port, the internal pressure is removed before the pressure-resistant vessel separates together with the joint. This causes one of the following: peeling of the fixing material from the container, rupture of the fixing material, separation of the fixing material from the mounting fixture, and destruction of the mounting fixture. According to this embodiment, when an excessive load is applied to the attachment, the pressure-resistant container does not peel off together with the joint portion, and safety during use can be improved.

In the second embodiment of the present invention, in the fire extinguisher according to the first embodiment, the fixing material is made of a material different from that of the pressure-resistant container. According to this embodiment, by varying the materials of the fixing material and the pressure-resistant vessel, the joint strength at the joint is lower compared to the case where the joint is made of the same material, so the column-shaped portion is easy to peel from the pressure-resistant vessel, and the pressure-resistant vessel peels together with the joint. can be prevented.

In the third embodiment of the present invention, in the fire extinguisher according to the first embodiment, the fixing material is made of a material softer than the pressure-resistant container. According to this embodiment, by making the fixing material softer than the pressure-resistant container, it is easy to fracture at the column-shaped portion, and it is possible to prevent the pressure-resistant container from peeling together with the joint portion.

A fourth embodiment of the present invention is the fire extinguisher according to any one of the first to third embodiments, in which a groove or notch is formed in the fixing member. According to this embodiment, by forming grooves or notches in the columnar portion, it is possible to prevent the columnar portion from easily breaking and the pressure-resistant container from peeling together with the joint portion.

The fifth embodiment of the present invention is a fire extinguisher according to the fourth embodiment, in which the grooves are spiral grooves. According to this embodiment, by making the groove a spiral groove, the columnar part can be used as a screw material, and it is easy to attach the attachment to the fixing material.

A sixth embodiment of the present invention is a fire extinguisher according to any one of the first to fifth embodiments, and the mounting device is made of a resin material. According to this embodiment, by making the mounting tool made of a resin material, it is possible to prevent the mounting tool from being easily broken and the pressure-resistant container from peeling together with the joint portion.

A seventh embodiment of the present invention is a fire extinguisher according to any one of the first to sixth embodiments, in which no marks are created on the inner surface of the pressure-resistant container due to the joint portion. According to this embodiment, since peeling between the joint and the pressure-resistant container is likely to occur, it is possible to prevent the pressure-resistant container from peeling together with the joint.

An eighth embodiment of the present invention is a fire extinguisher according to any one of the first to seventh embodiments, wherein the mounting device is made of at least one of a hanger, a hose holder, and a cover. According to this embodiment, the hanger, hose holder, and cover can be easily attached.

The manufacturing method of a fire extinguisher according to the ninth embodiment of the present invention includes a welding process of bringing a fixture into contact with a pressure vessel, a melting process of melting the fixture by passing electricity to the fixture after the welding process, and at least in the melting step, the fixture There is a pressurizing process for pressurizing the pressure vessel. In the contact process, the fixture axis of the fixture is placed toward the virtual vessel axis of the pressure vessel, and in the pressurizing process, the fixture is pressed towards the virtual vessel axis of the pressure vessel. According to this embodiment, since the welding joint of the fixing member to the curved surface can be performed reliably and stably, it is possible to prevent the pressure vessel and the joint from becoming an excessively strong joint.

A tenth embodiment of the present invention is a method of manufacturing a fire extinguisher according to the ninth embodiment, in which the joint formed mainly by melting the fixing material is not brought to the inner surface of the pressure vessel. According to this embodiment, since peeling between the joint and the pressure-resistant container is likely to occur, it is possible to prevent the pressure-resistant container from peeling together with the joint.

An 11th embodiment of the present invention is a method of manufacturing a fire extinguisher according to the 9th or 10th embodiment, which includes, before the contact process, a foreign matter removal step of removing dirt or rust from at least the outer surface of the pressure vessel at the position where the fixing material is contacted. It is to have. According to this embodiment, since the welding joint of the fixing member can be performed reliably and stably, it is possible to prevent the joint between the pressure vessel and the joint from becoming excessively strong or incomplete.

A twelfth embodiment of the present invention is a method of manufacturing a fire extinguisher according to any one of the ninth to eleventh embodiments, and has a painting process of painting the outer surface of the pressure-resistant container after the pressurization process. According to this embodiment, there is no influence on the melting process due to painting, and painting on the fixing material can be performed simultaneously.

A thirteenth embodiment of the present invention is a method of manufacturing a fire extinguisher according to any one of the ninth to twelfth embodiments, comprising a resin layer forming step of forming an aluminum preservative resin layer on the inner surface of the pressure vessel before the contact process. will be. According to this embodiment, an aluminum preservative resin layer can be formed in advance on the inner surface of the pressure-resistant container.

A fourteenth embodiment of the present invention is a method for manufacturing a fire extinguisher according to the ninth embodiment, which has a first fixing material and a second fixing material as fixing materials, and includes a welding process, a melting process, and a pressurizing process for the first fixing material. After performing this, the pressure-resistant container is rotated at a predetermined angle, and after the pressure-resistant container is rotated at a predetermined angle, a contact process, a melting process, and a pressurization process are performed on the second fixing member. According to this embodiment, in the contact process, the fixture axis of the fixture is disposed toward the virtual vessel axis of the pressure-resistant vessel, and in the pressurization process, the fixture is pressed toward the virtual vessel axis of the pressure-resistant vessel, so that the position is achieved by rotating the pressure-resistant vessel. It is easy to determine, and welding and joining of a plurality of fixing materials can be performed in a short time.

[Example]

Hereinafter, a fire extinguisher according to an embodiment of the present invention will be described.

1 is a configuration diagram of a fire extinguisher and a pressure-resistant container according to this embodiment.

1A is a front view in cross section of a portion of a fire extinguisher according to this embodiment.

As shown in FIG. 1A, the fire extinguisher according to this embodiment includes a pressure-resistant container 10 containing a fire extinguishing agent, a siphon tube 1 disposed inside the pressure-resistant container 10, and a pressure-resistant container 10. A pressure gauge (2) that displays the pressure inside, a valve rod (3) disposed at the top of the siphon tube (1), a lever (4) that operates the valve rod (3), and a lever (4) It is provided with a hose 5 that sprays a fire extinguishing agent by operation, a nozzle 6 provided at the tip of the hose 5, and a cover 7 that covers the lower part of the pressure vessel 10.

The siphon tube 1 is arranged at the virtual vessel axis X of the pressure vessel 10.

The pressure-resistant container 10 is made of an aluminum alloy material, and an aluminum preservative resin layer 11 is formed on the inner surface of the pressure-resistant container 10. The aluminum preservative resin layer 11 is formed by resin molding, but may be formed by painting. Inside the pressure container 10, a powdered medicine or a liquid medicine is enclosed.

Figure 1B is a front view of the pressure vessel of the fire extinguisher according to this embodiment.

As shown in FIG. 1B, the pressure-resistant container 10 includes a body portion 12 formed in a cylindrical shape, a shoulder portion 14 extending from the body portion 12 to the opening portion 13, and the body portion 12. It is formed of a bottom portion 15 that forms the lower part of. The shoulder portion 14 and the bottom portion 15 are formed in the shape of a truncated cone.

Fig. 2 is an explanatory diagram showing welding joints of fixing materials in the fire extinguisher.

FIG. 2A shows the welding joint position of the fixing material, FIG. 2B shows the welding process, FIG. 2C shows the melting process, and FIG. 2D shows the pressing process. 2B, 2C, and 2D are top views of the fire extinguisher from above.

As shown in FIG. 2A, the fixing material 20 is joined to the body portion 12 of the pressure-resistant container 10.

As shown in FIG. 2B, the fixing member 20 is composed of a columnar portion 21 and a protrusion 22 formed at one end of the columnar portion 21. Additionally, as shown, it is preferable that one end of the columnar portion 21 where the protrusion 22 is formed is formed with an enlarged portion 23 whose diameter is larger than that of the columnar portion 21.

The welding joint of the fixing material 20 to the body portion 12 is performed in the following order: a welding process, a melting process, and a pressing process.

As shown in FIG. 2B, in the contact process, the fixing material 20 is brought into contact with the pressure vessel 10.

The fixing material 20 arranges the fixing material axis Y of the fixing material 20 toward the virtual container axis X of the pressure-resistant container 10 (see FIG. 1).

Afterwards, as shown in FIG. 2C, in the melting process, an arc is generated in the protruding portion 22 formed at the end of the fixing material 20 by passing electricity to the fixing material 20, and the protruding portion 22 is mainly melted.

And as shown in FIG. 2D, in the pressurization process, the fixing material 20 is forced into the pressure-resistant container 10. The fixing material 20 is pressed toward the virtual container axis X of the pressure-resistant container 10. This pressurization process is performed in the welding process, or the welding process and the melting process, but it is preferable to continue even after the end of electricity supply in the melting process. For such welding, the CD (Capacitor Discharge) type stud welding method can be used.

As shown in FIG. 2D, a joint portion 30 mainly formed by melting the protruding portion 22 is formed between one end of the columnar portion 21 and the pressure vessel 10. The joint portion 30 is formed by melting a portion of the enlarged portion 23 and a portion of the pressure-resistant container 10 in addition to the protruding portion 22. However, marks made by the joint portion 30 are left on the inner surface of the pressure-resistant container 10. does not cause

According to this embodiment, since the welding joint of the fixing member 20 to the curved surface can be performed reliably and stably, it is possible to prevent the pressure vessel 10 and the joint portion 30 from becoming an excessively strong joint.

In addition, before the contact process shown in FIG. 2B, a resin layer forming process is performed to form the aluminum preservative resin layer 11 on the inner surface of the pressure vessel 10, so that an aluminum preservative resin layer is formed on the inner surface of the pressure vessel 10 in advance. (11) can be formed.

Furthermore, before the contact process shown in FIG. 2B, there is a foreign matter removal process to remove dirt or rust from at least the outer surface of the pressure vessel 10 at the position where the fixing material 20 is in contact with each other. By having a foreign matter removal process, the welding joint of the fixing material 20 can be performed reliably and stably, and the pressure vessel 10 and the joint portion 30 can be prevented from becoming an excessively strong joint or an incomplete joint. You can.

In addition, by having a painting process of painting the outer surface of the pressure vessel 10 after the pressurization process shown in FIG. 2D, there is no influence on the melting process due to painting, and painting of the fixing material 20 can be performed simultaneously. there is.

Fig. 3 is an explanatory diagram showing welding joints of a plurality of fixing materials in the fire extinguisher.

FIGS. 3A and 3B show joining of the first fixing member, and FIGS. 3C and 3D show joining of the second fixing member. Additionally, FIGS. 3A and 3C are top views of the pressure vessel, and FIGS. 3B and 3D are front views of main parts of the pressure vessel.

As shown in FIGS. 3A and 3B, after performing a welding process, a melting process, and a pressurizing process on the first fixing member 20A, the pressure vessel 10 is rotated at a predetermined angle.

After the pressure vessel 10 is rotated at a predetermined angle, a welding process, a melting process, and a pressurizing process are performed on the second fixing member 20B, as shown in FIGS. 3C and 3D.

In the contact process, the fixture axis Y of the fixture 20 is disposed toward the virtual vessel axis X of the pressure-resistant vessel 10, and in the pressurization process, the fixture 20 is positioned toward the virtual vessel axis Since the pressure is applied toward (X), positioning is easy by rotating the pressure vessel 10, and the plurality of fixing members 20 can be welded and joined in a short time.

Figure 4 is a perspective view of the main part showing the fire extinguisher in which two fixing members are joined.

At the upper part of the body portion 12, the first fixing material 20A and the second fixing material 20B are joined at the same height. The fixing member 20 is preferably provided on the body portion 12 as in the present embodiment, but may also be provided on the shoulder portion 14 or the bottom portion 15 shown in FIG. 1B. In addition, when providing the first fixing material 20A and the second fixing material 20B, it is preferable to provide them at the same height, but they can also be arranged on the same vertical line.

Fig. 5 is an explanatory diagram showing a case where an excessive load is applied to the fixture in the fire extinguisher.

FIG. 5A shows a state in which the columnar portion 21 is peeled from the pressure-resistant container 10 when an excessive load is applied to the fixing material 20.

In the fire extinguisher according to this embodiment, when an excessive load is applied to the fixing material 20, as shown in FIG. 5C, before a part of the pressure vessel 10 is separated along with the joint portion 30, as shown in FIG. 5A. Likewise, the columnar portion 21 is peeled from the pressure vessel 10.

In this way, the columnar portion 21 is prone to peeling from the pressure-resistant container 10, and in order to prevent the pressure-resistant container 10 from peeling together with the joint portion 30, the fixing material 20 is attached to the pressure-resistant container 10. It is made of a different material. By varying the materials of the fixing material 20 and the pressure vessel 10, the joint strength at the joint portion 30 can be lowered compared to the case where they are made of the same material.

In addition, the pillar-shaped portion 21 is prone to peeling off from the pressure-resistant container 10, and in order to prevent the pressure-resistant container 10 from peeling together with the joint portion 30, the fixing material 20 is attached to the pressure-resistant container 10. It should be made of soft material. By making the fixing material 20 a softer material than the pressure-resistant container 10, it becomes easy to break at the column-shaped portion 21.

For example, the pressure-resistant container 10 is made of aluminum 3000 series (Al-Mn series: aluminum manganese alloy), and the fixing material 20 is made of aluminum 1000 series (pure aluminum series), so that the fixing material 20 and the internal pressure can be achieved. The material of the container 10 can be changed, or the fixing material 20 can be made of a softer material than the pressure-resistant container 10.

FIG. 5B shows a state in which the columnar portion 21 breaks when an excessive load is applied to the fixing material 20.

In the fire extinguisher according to the present embodiment, when an excessive load is applied to the fixing material 20, as shown in FIG. 5C, before a part of the pressure vessel 10 is separated along with the joint portion 30, as shown in FIG. 5B. Likewise, the column-shaped portion 21 breaks.

In this way, in order to prevent the columnar portion 21 from easily breaking and the pressure vessel 10 from peeling together with the joint portion 30, a groove or notch is formed in the columnar portion 21. By forming grooves or notches in the columnar portion 21, stress concentration occurs in the grooves or notches, which is likely to cause fracture. It is desirable that the groove is a spiral groove. By forming a spiral groove, the pillar-shaped portion 21 can be used as a screw material, and it is easy to attach an attachment to the fixing material 20.

Figure 6 is a perspective view of the main part showing the fire extinguisher with a hanger mounted on a fixture as a mounting device.

The fire extinguisher of this embodiment is equipped with a hanger 40 for fixing at the installation site using the first fixing material 20A and the second fixing material 20B joined to the upper part of the body portion 12.

The hanger 40 has a pair of leg portions 41A and 41B and a connecting portion 42 that connects the pair of leg portions 41A and 41B.

The pair of leg portions 41A and 41B each come into contact with the pressure-resistant container 10, and a space 43 is formed between the connecting portion 42 and the pressure-resistant container 10.

The fire extinguisher is fixed to the installation site by inserting a protruding piece provided on the wall or in the container into this space 43.

Figure 7 is a configuration diagram showing a hanger as a mounting device to be attached to the fire extinguisher.

Figure 7a is a top cross-sectional view showing the hanger body, Figure 7b is a front view of the hanger main body, Figure 7c is a front view of the nut used in the hanger, Figure 7d is a bottom view of the copper nut, and Figure 7e is a top cross-sectional view of the hanger. , Figure 7f is a front view of the same hanger.

The hanger 40 consists of a hanger body shown in FIGS. 7A and 7B, a nut 44 shown in FIGS. 7C and 7D, and a cap 45 shown in FIGS. 7E and 7F.

The hanger body includes a first leg portion 41A forming a first insertion hole 46A, a second leg portion 41B forming a second insertion hole 46B, and a first leg portion 41A. ) and the second leg portion 41B, forming a joint portion 42 that connects the second leg portion 41B.

The first insertion hole 46A and the second insertion hole 46B are long holes.

It is preferable to use a push nut as the nut 44. By using the first nut 44A and the second nut 44B as push nuts, the first fixing material 20A and the second fixing material 20B can be easily inserted and can be reliably prevented from falling out after insertion.

Between the first insertion hole 46A and the first cap 45A, a first nut space 47A capable of displacing the first nut 44A is formed, and a second insertion hole 46B and the first nut space 47A are formed. Between the two caps 45B, a second nut space 47B is formed in which the second nut 44B can be displaced.

In this way, by forming the first nut space 47A and the second nut space 47B by the first cap 45A and the second cap 45B, the first cap 45A and the second cap 45B By removing, the hanger 40 can be easily removed from the pressure-resistant container 10.

The first nut 44A is placed opposite to the first insertion hole 46A, and the second nut 44B is placed opposite to the second insertion hole 46B.

The hanger 40 is preferably made of a resin material. By making the hanger 40 a resin material, the joint portion 42 can be easily elastically deformed.

Fig. 8 is an explanatory diagram showing a method of attaching a mounting tool to a fixture in the fire extinguisher.

FIGS. 8A to 8D are cross-sectional views of main parts of the upper surface sequentially showing mounting steps, FIG. 8E is a front view of the hanger in the state of FIG. 8A, and FIG. 8F is a front view of the hanger in the state of FIG. 8D. In addition, in FIG. 8, the first cap 45A and the second cap 45B described in FIG. 7 are omitted.

As shown in FIG. 8A, the first fixing material 20A is inserted into the first insertion hole 46A and the first nut 44A, and the second insertion hole 46B and the second nut 44B are inserted. The second fixing material 20B is inserted and penetrated.

The first distal end 20AY of the first fixing member 20A is greater than the root spacing LX between the first joining end 20AX of the first fixing member 20A and the second joining end 20BX of the second fixing member 20B. The tip gap LY between the second fixing member 20B and the second tip 20BY is wider.

Therefore, the first nut 44A is displaced in the direction of arrow a1 with respect to the first insertion hole 46A depending on the insertion state of the first fixing member 20A with respect to the first insertion hole 46A, The second nut 44B is displaced in the direction of arrow a2 with respect to the second insertion hole 46B depending on the insertion state of the second fixing member 20B with respect to the second insertion hole 46B.

FIG. 8B shows a state in which the hanger 40 is in contact with the pressure-resistant container 10.

The joint portion 42 can be elastically deformed and the distance between the first leg portion 41A and the second leg portion 41B can be changed.

In the state of FIG. 8B, the outside of the first leg 41A and the outside of the second leg 41B are in contact with the pressure vessel 10, but the inside of the first leg 41A and the outside of the second leg 41B are in contact with the pressure container 10. The inside of the leg portion 41B has a gap between it and the pressure vessel 10.

That is, the virtual curvature of the contact surface where the first leg portion 41A and the second leg portion 41B contact the pressure-resistant container 10 is made larger than the container curvature of the pressure-resistant container 10. By making the virtual curvature larger than the container curvature, it is easy to force the hanger 40 against the pressure-resistant container 10, and in a state where a reaction force in the direction of separating the hanger 40 from the pressure-resistant container 10 acts, the first leg portion The contact surface between 41A and the second leg portion 41B can be brought into close contact with the pressure vessel 10 without any gap.

In the state of FIG. 8B, the connecting portion 42 is pressed in the direction of arrow b1 and the hanger 40 is forced against the pressure-resistant container 10, thereby creating a gap between the first leg portion 41A and the second leg portion 41B. Force is applied in this expanding direction, and the inside of the first leg portion 41A and the inside of the second leg portion 41B contact the pressure container 10 (FIG. 8C).

As the inside of the first leg portion 41A and the inside of the second leg portion 41B contact the pressure vessel 10, the first fixing material 20A is further pushed into the first nut 44A, and the second The fixing material 20B is pushed further into the second nut 44B (FIG. 8D).

When the pressure in the direction of arrow b1 shown in FIG. 8B is released, the force in the direction in which the gap between the first leg portion 41A and the second leg portion 41B narrows causes the hanger 40 to become the pressure-resistant container 10. It acts as a reaction force in the direction away from (arrow c1 direction shown in Fig. 8C).

FIG. 8D shows a state in which attachment of the hanger 40 to the pressure-resistant container 10 has been completed. In this state, since a reaction force in the direction of arrow b1 shown in Fig. 8C is always applied, the hanger 40 does not rattle.

As shown in FIGS. 8E and 8F, the first nut 44A is inserted into the first insertion hole 46A according to the insertion state of the first fixing member 20A into the first insertion hole 46A. and the second nut 44B is displaced with respect to the second insertion hole 46B depending on the insertion state of the second fixing material 20B into the second insertion hole 46B.

In FIG. 8E, arrow e1 represents the displacement direction of the first nut 44A, and arrow e2 represents the displacement direction of the second nut 44B.

In this way, the first nut 44A and the second nut 44B are displaced, so that the first distal end 20AY is closer than the root distance LX between the first joining end 20AX and the second joining end 20BX. The hanger 40 can be smoothly attached to the first fixing member 20A and the second fixing member 20B whose distal end distance LY from the second distal end portion 20BY is widened.

By forming grooves or notches in the first fixing material 20A and the second fixing material 20B, engagement with the first nut 44A and the second nut 44B can be performed reliably. .

In FIG. 8, a spiral groove is formed in the first fixture 20A and the second fixture 20B. By forming the spiral groove, the first fixture 20A and the second fixture 20B can be used as a screw material. and engagement with the first nut 44A and the second nut 44B can be performed reliably.

Fig. 9 is an explanatory diagram showing a case where an excessive load is applied to the attachment of the fire extinguisher.

FIG. 9A shows a state in which the columnar portion 21 is peeled from the pressure-resistant container 10 when an excessive load is applied to the hanger 40 as an attachment device.

In the fire extinguisher according to this embodiment, when an excessive load is applied to the hanger 40, before a part of the pressure-resistant container 10 peels off together with the joint portion 30, as shown in FIG. 9A, the pressure is removed from the pressure-resistant container 10. The columnar portions 21 of the first fixing material 20A and the second fixing material 20B are separated.

In this way, the column-shaped portion 21 is prone to peeling from the pressure-resistant container 10, and in order to prevent the pressure-resistant container 10 from peeling together with the joint portion 30, the column-shaped portion 21 is separated from the pressure-resistant container (10). 10) It should be made of a different material. By making the pillar-shaped portion 21 and the pressure vessel 10 different from each other, the joint strength at the joint portion 30 can be lowered compared to the case where they are made of the same material.

In addition, the column-shaped portion 21 is prone to peeling from the pressure-resistant container 10, and in order to prevent the pressure-resistant container 10 from peeling together with the joint portion 30, the column-shaped portion 21 is separated from the pressure-resistant container 10. ) should be made of softer material. By making the columnar portion 21 made of a softer material than the pressure vessel 10, it becomes easy for the columnar portion 21 to break.

For example, the pressure-resistant container 10 is made of aluminum 3000 series (Al-Mn series: aluminum manganese alloy), and the columnar portion 21 is made of aluminum 1000 series (pure aluminum series), so that the columnar portion ( 21) and the pressure-resistant container 10 may be made of different materials, or the column-shaped portion 21 may be made of a softer material than the pressure-resistant container 10.

FIG. 9B shows a state in which the column-shaped portion 21 breaks when an excessive load is applied to the hanger 40 as an attachment device.

In the fire extinguisher according to the present embodiment, when an excessive load is applied to the hanger 40 as an attachment, before a part of the pressure-resistant container 10 is separated along with the joint portion 30, as shown in FIG. 9B, the column-shaped portion (21) breaks.

In this way, in order to prevent the columnar portion 21 from easily breaking and the pressure vessel 10 from peeling together with the joint portion 30, a groove or notch is formed in the columnar portion 21. By forming grooves or notches in the columnar portion 21, stress concentration occurs in the grooves or notches, which is likely to cause fracture. It is desirable that the groove is a spiral groove. By forming a spiral groove, the columnar portion 21 can be used as a screw material, and it is easy to attach an attachment to the columnar portion 21.

Figure 9c shows a state in which the first fixing member 20A and the second fixing member 20B are separated from the first nut 44A and the second nut 44B when an excessive load is applied to the hanger 40 as a mounting device. It is showing.

In the fire extinguisher according to the present embodiment, when an excessive load is applied to the hanger 40 as an attachment, before a part of the pressure-resistant container 10 is separated along with the joint portion 30, as shown in FIG. 9C, the first fixing member (20A) and the second fixing member 20B are separated from the first nut 44A and the second nut 44B.

In this way, the first fixing material 20A and the second fixing material 20B are easy to separate from the first nut 44A and the second nut 44B, and the pressure vessel 10 is prevented from peeling together with the joint portion 30. To prevent this, grooves or notches in the first fixing material 20A and the second fixing material 20B are formed shallowly.

FIG. 9D shows a state in which the hanger 40 is destroyed when an excessive load is applied to the hanger 40 as an attachment device.

In the fire extinguisher according to the present embodiment, when an excessive load is applied to the hanger 40 as an attachment, before a part of the pressure-resistant container 10 is separated along with the joint portion 30, as shown in FIG. 9D, the hanger 40 ) is destroyed.

In this way, in order to prevent the hanger 40 from being easily broken and the pressure vessel 10 from peeling together with the joint portion 30, the hanger 40 is made of a resin material.

In addition, when an excessive load is applied to the hanger 40 as an attachment device, the column-shaped portion 21 is peeled from the pressure-resistant container 10 before the pressure-resistant container 10 is separated along with the joint portion 30, and the column-shaped portion 21 is separated from the pressure-resistant container 10. At least one of the following: fracture in the portion 21, separation of the first fixing member 20A and the second fixing member 20B from the first nut 44A and the second nut 44B, and destruction of the hanger 40. It is good if it causes two or more, but safety during use can be increased.

In addition, in this embodiment, the mounting tool is described as the hanger 40, but the hose support or cover 7 shown in FIG. 1 for fixing the hose 5 or the nozzle 6 can be used as the mounting tool, and the fixing member can be used as a mounting tool. By using (20), the hose support or cover (7) can be easily mounted.

[Industrial applicability]

The present invention is suitable for pressure-resistant containers made of aluminum alloy materials, but can also be applied to pressure-resistant containers formed by extruding ingots of magnesium, copper, iron and their alloys, or pressure-resistant containers formed by welding stainless steel plates. .

In addition, in the present invention, it has been explained that the mounting tool is welded to the pressure-resistant vessel using a fixing material, but when the mounting tool is welded and fixed to the pressure-resistant container without using a fixing material, and the joint is formed by this welding fixing, When an excessive load is applied to the mounting device, either peeling or destruction of the mounting device from the pressure container may occur before the pressure container is separated from the joint, and the pressure container may not be made of an aluminum alloy material.

10: Pressure-resistant vessel
11: Aluminum preservative resin layer
12: body part
13: opening
14: Shoulder
15: Bottom part
20: Fixing material
20A: first fixing material
20B: second fixing member
21: Column-shaped part
22: protrusion
23: enlarged part
30: joint
40: hanger
41A: Leg part
41B: Leg part
42: junction
43: space part
44: nut
44A: first nut
44B: second nut
45A: first cap
45B: second cap
46A: First insertion hole
46B: Second insertion hole
47A: first nut space
47B: second nut space
X: virtual vessel axis
Y: Center of fixture axis
LX: source spacing
LY: tip spacing

Claims (14)

The pressure-resistant container containing the fire extinguishing agent is made of aluminum alloy material,
A fixing material is welded and joined to the pressure vessel,
A fire extinguisher equipped with a mounting device on the fixture,
The fixing member is composed of a columnar portion and a protrusion formed at one end of the columnar portion,
A joint formed mainly by melting the protrusion is formed between one end of the column-shaped portion and the pressure vessel,
The fixing material is a material different from the pressure vessel,
When an excessive load is applied to the mounting device, causing separation of the columnar portion from the pressure-resistant container before the pressure-resistant container peels together with the joint.
A fire extinguisher characterized by delete The pressure-resistant container containing the fire extinguishing agent is made of aluminum alloy material,
A fixing material is welded and joined to the pressure vessel,
A fire extinguisher equipped with a mounting device on the fixture,
The fixing member is composed of a columnar portion and a protrusion formed at one end of the columnar portion,
A joint formed mainly by melting the protrusion is formed between one end of the column-shaped portion and the pressure vessel,
The fixing material is made of a softer material than the pressure-resistant container,
When an excessive load is applied to the mounting device, fracture occurs in the column-shaped portion before the pressure vessel separates with the joint portion.
A fire extinguisher characterized by The pressure-resistant container containing the fire extinguishing agent is made of aluminum alloy material,
A fixing material is welded and joined to the pressure vessel,
A fire extinguisher equipped with a mounting device on the fixture,
The fixing member is composed of a columnar portion and a protrusion formed at one end of the columnar portion,
A joint formed mainly by melting the protrusion is formed between one end of the column-shaped portion and the pressure vessel,
A groove or notch is formed in the column-shaped portion,
When an excessive load is applied to the mounting fixture, causing fracture in the column-shaped portion or separation of the fixing member from the mounting fixture before the pressure vessel is separated with the joint portion.
A fire extinguisher characterized by According to claim 4,
The above groove is a spiral groove.
A fire extinguisher characterized by The pressure-resistant container containing the fire extinguishing agent is made of aluminum alloy material,
A fixing material is welded and joined to the pressure vessel,
A fire extinguisher equipped with a mounting device on the fixture,
A joint mainly made by melting the fixing material is formed between the fixing material and the pressure-resistant container,
The mounting device is made of resin,
When an excessive load is applied to the mounting device, it causes destruction of the mounting device before the pressure vessel separates with the joint.
A fire extinguisher characterized by The method according to any one of claims 1 or 3 to 6,
On the inner surface of the pressure-resistant container, no marks are created by the joint.
A fire extinguisher characterized by The method according to any one of claims 1 or 3 to 6,
The mounting device is made of at least one of a hanger, a hose support, and a cover.
A fire extinguisher characterized by A method of manufacturing a fire extinguisher in which a pressure-resistant container containing a fire extinguishing agent is made of an aluminum alloy material, and a fixing member for attaching a mounting device is welded and joined to the pressure-resistant container, comprising:
The fixing member is composed of a column-shaped portion and a protrusion formed at one end of the column-shaped portion,
A contact process of bringing the fixing material into contact with the pressure vessel,
After the contact process, a melting process of generating an arc in the protruding part of the fixing material by applying electricity to the fixing material to mainly melt the protruding part;
At least in the melting process, a pressurizing process of forcing the fixing material into the pressure vessel.
With
In the contact process, the fixture axis of the fixture is disposed toward the virtual container shaft of the pressure-resistant container,
In the pressurizing process, the fixing material is pressed toward the virtual container axis of the pressure-resistant container,
Between one end of the column-shaped portion and the pressure vessel, a joint formed mainly by dissolving the protrusion is formed.
A method of manufacturing a fire extinguisher, characterized in that. According to clause 9,
The joint formed mainly by melting the fixing material does not reach the inner surface of the pressure vessel.
A method of manufacturing a fire extinguisher, characterized in that. According to claim 9 or 10,
Before the contact process, there is a foreign matter removal process of removing dirt or rust from at least the outer surface of the pressure vessel at the position where the fixing material is contacted.
A method of manufacturing a fire extinguisher, characterized in that. According to claim 9 or 10,
After the pressurization process, there is a painting process for painting the outer surface of the pressure vessel.
A method of manufacturing a fire extinguisher, characterized in that. According to claim 9 or 10,
Before the contact process, there is a resin layer forming process of forming an aluminum preservative resin layer on the inner surface of the pressure vessel.
A method of manufacturing a fire extinguisher, characterized in that. According to clause 9,
As the fixing material, it has a first fixing material and a second fixing material,
After performing the contact process, the melting process, and the pressurizing process with respect to the first fixing material, the pressure vessel is rotated at a predetermined angle,
After rotating the pressure vessel at the predetermined angle, performing the contact process, the melting process, and the pressurizing process on the second fixing member.
A method of manufacturing a fire extinguisher, characterized in that.

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