JP6066959B2 - Outer firework hull - Google Patents

Description

The present invention relates to a member that wraps explosives for launch fireworks, and is particularly fired at an altitude in the middle and low altitudes. From the audience, a fire suddenly comes out of a tube and looks like a bouquet (hereinafter referred to as bouquet fireworks). .) about the fireworks display for the outside skin to be applied to.

  Conventionally, bouquet fireworks are filled with explosives in a spherical body, placed in a launching cylinder, and igniting the explosive for launching at the bottom of the cylinder to give propulsion to the spherical body and launch it.

  In the conventional spherical ball, a thin cylindrical paper is pasted around the upper part of the ball and is filled with explosive from the opening, and the opening is closed. Fireworks that look like bouquets are so popular that they have to be prepared in large quantities before the season, and mass productivity is insufficient. A special shape like Patent Document 1 is difficult to mass-produce and is not suitable for bouquet fireworks.

  Therefore, an invention in which a lid is provided on the bottom of a paper tube as in the invention described in Patent Document 2 has been made. However, at the time of launching, it is necessary to place the explosive for launching on the bottom of the cylinder, and then to place a flying object filled with pyrotechnics on the outer shell for launching fireworks. There wasn't.

U.S. Pat. No. 7,278,355 Utility Model Registration No. 3184490

  Then, this invention makes it a subject to improve the efficiency of the launching work at the time of launching the bouquet fireworks.

In view of the above problems, the present invention is a cardboard cylinder and a perforated outer shell for a bouquet firework that is mounted on a bouquet fireworks launch tube and ignites the launch gunpowder to fly from the launch cylinder. A partition having a flat plate and a side plate standing on the outer periphery of the flat plate, the partition is fitted into a lower inner peripheral wall of the cylindrical body, and the side plate is fitted inside the cylindrical body It is a shell for launching fireworks that divides the inner region of the cylindrical body into an upper region for loading pyrotechnic powder and a lower region for loading launching powder by fixing to the peripheral surface. Examples of the cylinder include a round cylinder and a square cylinder. It is preferable that the side plate is fixed to the inner peripheral surface of the cylindrical body with an adhesive.

  A cardboard that divides the upper region of the cylindrical body by fixing the side panel to the inner peripheral surface of the cylindrical body. It is preferable that the outer skin for launching fireworks provided with the second partition portion.

  It is preferable that it is an outer skin for fireworks in which the holes of the partition are covered with thin paper. It is preferable that the thin paper can be fixed to the partition without attaching an adhesive.

  It is preferable that the flying object for launching fireworks is sealed at the upper opening of the outer cylinder for launching fireworks.

  The partition part or the second partition part is preferably one in which a side plate (such as a short cylinder) is connected to a flat plate (such as a disc). It is preferable to form cardboard with a press to form a partition or a second partition.

  The number of holes may be one or more and can be set as appropriate, but is preferably 3 to 5. Examples of the shape of the hole include a round hole and a square hole.

  It is preferable to provide a cover on the top of the cylindrical body. This cover is a sealing cover that prevents pyrotechnic powder from coming out of the upper part of the cylindrical body. Preferably, the upper region of the cylindrical body is filled with explosive and sealed with a cover. You may fill with a pyrotechnic powder after attaching a cover to a cylinder. The cover is preferably sealed by bonding or twisting. The cover may be thin paper or adhesive tape (for example, craft tape). In the case of thin paper, for example, Japanese paper or the like is preferable. After adhering to the cylinder in advance and filling the upper region with pyrotechnics, the Japanese paper is twisted or the Japanese paper is sealed with an adhesive tape. Instead of the above, after filling the upper region with pyrotechnic powder, the side plate of the second partition portion may be sealed with an adhesive on the inner peripheral surface of the cylindrical body. The lower area is filled with launching powder. It is preferable to fill a plastic bag or the like in which the explosive is packaged.

According to the first aspect of the present invention, when the bouquet fireworks are launched, it is only necessary to preliminarily fill the upper area of the outer skin for the fireworks with the pyrotechnic powder and the lower area with the pyrotechnic powder, and put this into the launch cylinder. The launching workability is significantly improved.

The invention of claim 1, and a fireworks gunpowder and launch gunpowder bouquets fireworks easily compartment filled, because incorporated in both the cylindrical body fireworks gunpowder and launch gunpowder, there is the charging efficiency, the work efficiency is improved effect .

The invention of claim 1, since it is easy to change the position of the specification switching portion of the fireworks display for skin bouquet fireworks, can freely control the explosive charge, the degree of freedom of presentation of bouquets fireworks at medium low altitude is Get higher.

(A) and (b) are the perspective views of the outer skin for launch fireworks of one embodiment of the present invention. It is a top view of the outer skin for launch fireworks of one embodiment of the present invention. (A) is the perspective view of the partition part of the outer skin for launch fireworks similarly, (b) is the explosive ball container of a comparative example. It is a disassembled perspective view of the outer skin for launch fireworks of another embodiment of the present invention. (A) (b) (c) is a front view of the flying object of one embodiment. It is a disassembled perspective view of the outer skin for launching fireworks of still another embodiment of the present invention. It is sectional drawing which similarly shows the state which accommodated the explosive for launching in the launch cylinder, and mounted the flying body. (A) (b) is a front view of the launch pad which fixed the some launching container.

  Hereinafter, a skin 1 for fireworks for fireworks which is a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 6.

  As shown in FIG. 1 and FIG. 2, the outer shell 1 for fireworks is a thick paper cylinder 2 and a plurality of holes 3, and is formed of a thick paper fixed to an intermediate portion of the inner wall of the cylindrical body 2, for example, inside the lower region. And a partition portion 4. The outer skin 1 for launch fireworks has a cylindrical shape with no ceiling and no bottom. The manufacturing process is simple and can be produced at a very low cost while maintaining the required strength.

  The diameter of the cylindrical body 2 shown in FIG. 3A is an appropriate size such as 1 inch 5 minutes, 2 sizes, 2.2 sizes, 2 sizes 5 minutes, and the like. The size is not limited as long as it fits the bouquet fireworks.

  A hemispherical container 101 of a comparative example shown in FIG. 3 (b) is obtained by making a plurality of holes in a hemispherical paper container and winding Japanese paper (not shown) around the upper end portion in a cylindrical shape. An explosive is put from the opening of the Japanese paper of this hemispherical container 101, and it seals with Japanese paper. Since it is the hemispherical container 101, it must be forced and packed with explosives, and the explosive capacity is limited. In the hemispherical container 101, the pressure of the gunpowder 8 for launching is not applied to the outer shell 1 for launching fireworks, and the rise of the bouquet fireworks is poor. Compared with the hemispherical container 101, the outer skin 1 for launch fireworks can be made cheaper. Since the outer skin 1 for launch fireworks has a cylindrical hemisphere, the explosive capacity is increased. Moreover, since the partition part 4 is flat and can fill not only with pyrotechnic explosives but also with explosive explosives, the launching operation can be made more efficient.

  The number of holes 3 is preferably 3 or 4, but is not limited thereto. Further, the position of the hole 3 is not limited to the illustration, and can be set as appropriate.

This is a structure in which the partition portion 4 is fitted and bonded to a position of a predetermined height in an intermediate region of the inner wall of the cylindrical body 2. In order to ensure mass productivity, the partition section 4 is formed by pressing a thick paperboard with a press, or by appropriately cutting it. As shown in FIG. 3, the partition portion 4 is a lid-like body that is formed by a short cylindrical body 4 b that is a side plate that is continuous with the circumferential edge of a disk 4 a that is a flat plate in the axial direction. By applying an adhesive (such as glue) to the outer surface of the short cylindrical body 4 b of the partition part 4 and fitting the partition part 4 into the lower inner peripheral wall of the cylindrical body 2, the partition part 4 is fixed to the cylindrical body 2. To do. Here, the main surface of the short cylindrical body 4 b is fixed parallel to the axial direction of the cylindrical body 2.

  As shown in FIG. 4, the thin paper 4c may be interposed in the upper layer of the partition part 4, or may not be interposed. Although an adhesive may be attached to the thin paper 4c, since the thin paper 4c has air permeability, the adhesive applied to the outside of the short cylindrical body 4b penetrates into the thin paper 4c without attaching an adhesive to the thin paper 4c. Can be glued. The partition 4 may be turned upside down.

  Thus, by fixing the partition part 4 to the cylindrical body 2, as shown in FIG. 5, the inside of the cylindrical body 2 is divided into an upper region 2a and a lower region 2b. Here, the volume of the upper region 2a is larger.

  As shown in FIG. 5A, thin paper 5 is bonded to the outer periphery of the upper portion of the cylindrical body 2. Here, an adhesive is applied to the entire circumference of the upper outer periphery of the cylindrical body 2, and the thin paper 5 is wound around the cylindrical body 2 in a cylindrical shape to be bonded.

As shown in FIG. 5 (a), flying object 6 fills the fireworks gunpowder in the upper region 2a of the fireworks display for skin 1, and sealed by twisting the thin paper 5, also, the launch explosives 8 in the lower region 2b Loaded.

  As shown in FIG. 5B, the flying body 6 ′ may be filled with pyrotechnic powder by bonding the cover (or thin paper) 5 ′ to the cylindrical body 2 with an adhesive tape. Thereby, sealing work is easy. In addition, it can be used without the thin paper 5 and the cover 5 'by simply filling the explosive without sealing. In the case where the outer skin 1 for launching fireworks is filled with pyrotechnic powder or launching explosive, the firework explosive or launching powder in a plastic bag may be packed in the outer shell 1 for launching fireworks to form the flying object 6 '. If the outer skin 1 for launch fireworks of various heights is prepared according to the order, a variety of effects can be achieved.

  As shown in FIGS. 5C and 6, the flying body 6 ″ is obtained by inserting the second partition 10 from the upper opening of the cylindrical body 2 after filling the upper region 2 a with pyrotechnic powder. The second partition 10 is a lid-like body in which the partition 4 is not perforated, and a short cylindrical body 10b is continuous in the axial direction around the circumference of the disk 10a. You may fix by attaching an adhesive agent to the outer surface of the short cylindrical body 10b. Thereby, the upper region 2a can be further divided into an upper region 2a 'having a reduced volume and a space portion 2c. As a result, leakage of pyrotechnic powder to the outside can be surely prevented, and the fixing operation can be made easier than the thin paper 5 and the cover 5 '. There is no risk of breakage like the thin paper 5 or the cover 5 '. In addition, the appearance is simple and beautiful. Note that the second partition 10 may be turned upside down. Moreover, although it was inserted all the way in, if it inserts in the upper entrance of the cylindrical body 2, an operation | work will become easy.

  As shown in FIG. 7, when the launch preparation is completed, the flying bodies 6, 6 ′, 6 ″ are inserted into the bottom of the launch cylinder 20, and the lead 9 is pulled out of the launch cylinder 20. When the lead 9 is ignited, the explosive gunpowder 8 is ignited, and the flying bodies 6, 6 ', 6' 'are launched from the launch tube 20 by the pressure of the gunpowder gun 8, and the upper region 2a is filled from the hole 3. Fireworks explode and fireworks explode in the sky, increasing the flexibility of the bouquet. In addition, the bottom of the launch cylinder 20 may be a curved surface (for example, downward convex).

  When the outer skin 1 for launch fireworks becomes smaller, as shown in FIGS. 8A and 8B, a plurality of launch cylinders 20 are used instead of one, and the top 30 is a fan-shaped or confronted base 30. Fix it side by side. The present invention is highly stable. Since the flying bodies 6, 6 ′ and 6 ″ contain fireworks explosives and launch explosives, they can be loaded into the launch cylinder 20 as they are. Many of the flying bodies 6, 6 'and 6 "placed obliquely are particularly long. The longer it is, the easier it is to load the structure of the outer skin 1 for launch fireworks. Thereby, the workability of launching can be improved, and the audience can be impressed by the production of a wide variety of bouquet fireworks and the production of a large number of flowers.

  The embodiments of the present invention are not limited to the following embodiments, and modifications and the like can be made without departing from the technical idea of the present invention. Of course, equivalents and the like are also included in the technical scope of the present invention, and various forms can be adopted as long as they belong to the technical scope. For example, in the above embodiment, the cylindrical body 2 has a cylindrical shape, but may have a rectangular tube shape (for example, a quadrangle or the like). The partition 4 or the second partition 10 may be tightly fitted to the inner wall of the cylindrical body 2 without an adhesive. Saves time and effort to apply adhesive. The upper and lower positions of the partitioning section 4 or the second partitioning section 10 are not limited to those shown in the drawings, and appropriate positions are possible. However, since the partition part 4 stores the explosive explosive, it should be arranged with a minimum space from the bottom of the cylindrical body 2.

DESCRIPTION OF SYMBOLS 1 ... Skin for fireworks 2 ... Cylindrical body 2a, 2a '... Upper area | region 2b ... Lower area | region 2c ... Space part 3 ... Hole 4 ... Partition part 4a ... Disc 4b ... Short cylindrical body 4c ... Thin paper 5 ... Thin paper 5 '... Cover 6, 6', 6 '' ... Flying body 7 ... Bag 8 ... Explosive for launch 9 ... Fire conductor 10 ... Second partition 20 ... Launch tube 30 ... Stand 101 ... Hemispherical container

Claims (1)

In the outer shell for the fireworks of the bouquet fireworks that are attached to the launcher of the bouquets fireworks and ignite the launching gunpowder to fly from the launchers,
A cardboard cylinder,
A partition having a perforated flat plate and a side plate standing on the outer periphery of the flat plate;
The partition is fitted into the lower inner peripheral wall of the cylinder,
By fixing the side plate to the inner peripheral surface of the cylinder, the inner area of the cylinder is divided into an upper area for loading pyrotechnic powder and a lower area for loading explosive powder,
The outer skin for launch fireworks.

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