JP6440258B2 - Launch fireworks flying body parts and method of manufacturing the same - Google Patents

Description

  The present invention relates to a flying body component having a skin that is loaded with explosives in a fireworks display, and a method for manufacturing the same.

  The fireworks fireworks are formed in a spherical shape by placing stars and explosives called split powder on two concentric spheres in two hemispherical skins, and connecting these two hemispherical skins. The leather is made by sticking Japanese paper, but industrially mass-produced is generally formed by pressing cardboard or other thick paper. The lead wire is fixed by inserting a hole in the center of the skin.

  The invention described in Patent Document 1 is a toy fire conductor that has been prevented from falling off and not being fired. Provided is a toy fire conductor for a toy fire that can be safely ignited without looking into the spout when the fire is ignited, while preventing the fire conductor from falling off or being fired. The toy fire conductor 1 is applied with gunpowder 2 and is equipped with a protective cap 3. Toy powder with a gunpowder 1 covered with string, paper, etc., coated with a gunpowder 2 such as mud, and a protective cap 3 made of resin or the like is mounted on it. Used as a fire conductor. Then, the toy smoke fire guide wire 1 is inserted together with the protective cap 3 into a hole or the like provided on the side of the toy smoke fire, and attached to the toy smoke fire main body with the adhesive 4.

  The invention of Patent Document 2 provides a fuming toy firework that is easy to manufacture and has a favorable appearance. Solid smoke smoke formed by forming smoke smoke in a predetermined shape is fitted in a flame-retardant synthetic resin container 3 in a sealed state, and through holes 5 are formed in the container 3 to penetrate the container 3 in and out. The smoke generation toy fireworks are characterized in that the through-hole 5 is provided with a fire guiding means 7 for solid smoke generating agent.

  The invention of Patent Document 3 includes an outer shell (12) having a hole (26) therein, a central sleeve (70) extending from the hole (26) into the outer shell (12), and the central sleeve (70). A pyrotechnic device having an insert (40) having an explosive splitting agent (50) therein, dimensioned to be slidably received in the interior).

  The invention of Patent Document 4 is to provide an ejection type toy firework in which the manufacturing process is simplified and the amount of garbage after a game is small. It has a pyrotechnic body 5 composed of a solid explosive portion 2 with a lead 8 attached to the top and a bottom stop 3 arranged at the bottom of the explosive portion 2, and the entire outer periphery of the pyrotechnic body 5 is wrapped with decorative paper 9. The decorative paper 9 and the explosive part 2 are in close contact with an adhesive. The fire guide wire 8 is supported from the surroundings by an overhanging portion 10 that forms part of the decorative paper 9. Since the conducting wire 8 and the overhanging portion 10 are bonded, the conducting wire 8 is held more firmly. In such a configuration, there is no paper tube, so there is less dust, and since there is no paper tube, it is easier to see if the explosives have disappeared after the game, so it is safer than when there is a paper tube. Confirmation is easy and reliable.

  In the invention of Patent Document 5, a spherical part is formed by fixing a spherical powder around a solid smoked medicine formed by forming the smoked medicine in a predetermined shape, and the solid smoked powder in the spherical part is made of wood powder. Gives independence to the smoke toy fireworks that have one end of the lead wire that penetrates through. A spherical part 7 is formed by fixing the wood powder 15 in a spherical shape around the solid smoke medicine formed by forming the smoke medicine into a predetermined shape. The solid smoke medicine in the spherical part 7 penetrates the wood powder 15. In the smoke toy fireworks to which one end of the squib 17 is attached, the spherical portion 7 is fitted with a self-supporting device 23 having a fitting hole 21 that fits the spherical portion 7. Fireworks.

JP 2009-41828 A JP-A-9-68400 Special table 2013-528770 gazette Utility Model Registration No. 3115137 Utility Model Registration No. 3025430

  However, when launching fireworks, a considerable load is applied to the lead wire or the skin due to the impact, so if the lead wire is weakly adhered to the skin, the lead wire may come off the ball skin, Since the durability is reduced, such as deformation, the safety is expected to be improved. Moreover, there is a problem that the work of fixing the lead wire to the skin is troublesome.

In view of the above problems, the flying firework flying parts of the present invention is a halved body, and is set to a surface area smaller than the surface area of the firework ball skin in which a through hole is formed in the center, deposited capable formed in the center portion of the outer surface of the ball skin, a through hole is formed in the center, and the adherend pieces that have a protruding portion which is a vertical wall rising from the periphery of the through hole, the ball skin and is inserted into the through hole of the adherend member, comprising: a fuse inserting vertically the ball skin and depositing pieces, and a bonding layer for bonding the squib and the adherend piece with the ball skin, the adhesive layer is The protruding portion and the conductive wire are bonded together.

  Examples of the raw material for the leather and / or the adherend include cardboard, plastic (including biodegradable plastic), and paper. Appropriate sizes such as No. 2.5 balls, No. 3 balls, No. 4 balls, etc. can be adopted as the size of the ball skin.

The launch fireworks flying body parts manufacturing method of the present invention includes a lead wire insertion step of vertically inserting a lead wire into a through hole formed in the center of a firework ball skin that is a half- split body, the lead wire and the ball An adhesive application step of applying an adhesive to the central portion of the outer surface of the leather, and a protrusion that is a standing wall that is set to a surface area smaller than the surface area of the skin and rises from the periphery of the through hole provided in the center the deposited specimen was inserted into the squib, wherein the push to be Chakuhen so as to approach the ball skin, as well as bonding the pre Symbol lens skins and the adherend piece and fuse, adhering the squib and the projecting portion And an adherend piece fixing step for solidifying the adhesive.

  By this invention, the adhesive force with respect to the hull of a lead wire becomes high, the durability to the impact at the time of launching fireworks is dramatically improved, and the safety is enhanced. Increases the efficiency of fixing the lead wire to the skin.

It is the perspective view seen from the front side of flying object part 1 of the launch firework of Embodiment 1 by the present invention. It is the perspective view seen from the back side of flying body part 1 of the launch firework of Embodiment 1 by the present invention. It is the perspective view seen from the front side of flying object part 201 of the launch firework of Embodiment 2 by the present invention. It is the perspective view seen from the back side of flying body part 201 of the launch firework of Embodiment 2 by the present invention. It is a perspective view of the ball skin 401 of a comparative example. It is explanatory drawing which shows 1 process of the manufacturing method of the launch firework of embodiment by this invention. It is explanatory drawing which shows 1 process of the manufacturing method of the launch firework of embodiment by this invention. (A) (b) is explanatory drawing which shows 1 process of the manufacturing method of the launch firework of embodiment by this invention. (A) (b) is explanatory drawing which shows 1 process of the manufacturing method of the launch firework of embodiment by this invention. It is the elements on larger scale which show 1 process of the manufacturing method of the launch firework of embodiment by this invention. (A) and (b) are the other elements on larger scale which show 1 process of the manufacturing method of the launch firework of embodiment by this invention.

  A flying fireworks flying object part 1 (hereinafter simply referred to as flying object part 1) according to Embodiment 1 of the present invention will be described below with reference to FIGS. The flying body component 1 is a half of a spherical shell, and a No. 4 firework ball skin 3 (hereinafter simply referred to as a ball skin) in which a through hole 2 (see FIG. 8) is formed at the center, and a ball. An adherend piece 5 which is set to a surface area smaller than the surface area of the skin 3 and is formed so as to be attachable to the central portion of the outer surface of the ball skin 3 and in which a through hole 4 (see FIG. 9) is formed at the center; And a lead wire 6 inserted through the through holes 2 and 4 of the ball skin 3 and the adherend piece 5, and an adhesive layer 7 for bonding the ball skin 3, the adherend piece 5 and the lead wire 6. . The cross-section of the squib 6 is exemplified by an appropriate shape such as a circle or a square. The through-holes 2 and 4 are shapes suitable for the outer surface shape of the conducting wire 6, and examples thereof include round holes and square holes. The adherend piece 5 is provided with a protruding portion 5a shaped like a lip protruding outward at the peripheral edge of the through hole. Although the adherend piece 5 is exemplified by a circle, an appropriate shape such as a square, an ellipse, or an oval is exemplified. Details will be described below.

  Raw materials for the ball skin 3 and the adherend piece 5 are cardboard, cardboard, plastic (including biodegradable plastics in addition to ordinary plastic), pulp materials, laminated waste paper, Japanese paper, kraft paper, Examples include a laminate of newspaper and the like, other plant fibers, synthetic fibers, pulp molds, and the like, and any appropriate material can be used. Moreover, a flame retardant, a waterproofing agent, etc. can also be used. In the case of No. 4 ball, the ball skin 3 has an inner diameter of 10.3, an outer diameter of 10.9 mm, and a thickness of 2.5 mm, but an appropriate size can be adopted. Although the thickness of the adherend piece 5 is 1 mm, it can be set to an appropriate thickness such as 1 mm to 3 mm. The surface area of the adherend piece 5 is preferably 30% to 60% in plan view with respect to the surface area of the hull 3, but the upper and lower limit values are not limited. The ball skin 3 is a half body of a spherical shell.

  FIG. 3 shows an example of the No. 3 flying object part 201, which is the same as the No. 4 ball of the above embodiment, but the surface area of the adherend piece 205 is increased. The surface areas of the adherend pieces 5 and 205 can be appropriately set.

  The flying body component 401, which is a comparative example of FIG. 5, has a lead wire 406 inserted through a through-hole (not shown) formed in the ball skin 403, and then an adhesive 407 is applied and the adhesive is dried and solidified. The wire 405 is wound around the wire 406 and secured, and further, the adhesive 407 is applied to the string 405 and infiltrated, and then the adhesive 407 is solidified to fix the wire 6 to the skin 403.

  According to the flying parts 1 and 201 described above, in the conventional example or the comparative example, the lead wire 406 is detached from the ball skin 403 or attached to the lead skin 403 due to an impact at the time of launching fireworks. However, in comparison with these, the adhesive strength of the lead wire 6 to the ball skin 3 is increased, and the durability against the impact when the fireworks are launched is dramatically improved. There is no risk of deformation, and safety is increased. Moreover, while the comparative example has to be wound with a string, according to the flying body parts 1 and 201, the efficiency of the fixing work of the lead wire 6 to the skin 3 is increased. Furthermore, in the comparative example, it is necessary to wait until the adhesive is completely dried and fixed, but according to the flying body parts 1, 201, due to the action of the adherend piece 5, a fixing force is exhibited to some extent. There is no need to wait for the adhesive to dry, and there is an effect that it is possible to quickly move to the explosive stuffing operation, which is the next step, and the work efficiency is greatly improved. In addition, as the number of fireworks ball skin increases, elaborate reinforcement is necessary, but according to the present embodiment, it can be applied to fireworks with a large number of fireworks. It can be remarkably reduced, and workability and cost reduction effect are enhanced.

  A method for manufacturing a flying fireworks part according to the present invention will be described with reference to FIGS. This method includes a preliminary preparation process, a lead wire insertion process, an adhesive application process, and an adherend piece fixing process.

  The preliminary preparation steps are shown in FIGS. This step is a bending / penetrating press step for manufacturing the ball skin 3 and the adherend piece 5. Since the skin 3 is manufactured according to the prior art, the description is omitted. Further, the adherend piece 5 is manufactured using a male mold 501 and a female mold 601 as shown in FIG. The male mold 501 is provided with a convex portion 502 that protrudes downward in a spherical shape, and a projection 503 that has a cylindrical shape that protrudes downward from the central portion of the convex portion 502 and has a tip pointed downward. The female die 601 includes a spherical recess 602 and a groove 603 formed corresponding to the protrusion 503. The groove portion 603 is a cylindrical hollow portion, and the diameter thereof is slightly larger than that of the protrusion 503, and the protrusion 503 can be loosely fitted in the groove portion 603 so as to be able to advance and retreat. In addition, you may manufacture with a pulp mold.

  First, as shown in FIG. 6, a base paper 701 that is a disk-shaped thick paper is placed on the upper surface of the female mold 601, and then the male mold 501 is lowered. The base paper 701 has a diameter between the male mold 501 and the female mold 601.

  Next, as shown in FIG. 7, the male mold 501 is fitted into the female mold 601. At this time, the protrusion 503 penetrates the base paper 701 to form the through hole 4, and the lip-shaped protruding portion 5 a is continuously formed below the periphery of the through hole 4 by the penetrating force, and a part of the spherical surface is formed. The adherend piece 5 having a circular arc shape is formed. The curvature of the adherend piece 5 is a shape that matches the curvature of the skin 3. When the male mold 501 and the female mold 601 are fitted, the base paper 701 is deformed and accommodated in the female mold 601 so that the upper surface of the female mold 601 and the upper surface of the base paper 701 are generally flush with each other, and the protruding portion 5a is sandwiched between the protrusion 503 and the groove 603, and the protrusion 503 of the male mold 501 is retracted upward from the state, and can be taken out of the mold. The protruding shape of the protruding portion 5a may be a random shape such as a jagged shape.

  The lead wire insertion step is a step of inserting the lead wire 6 from the inside into the through hole 2 formed at the center of the ball shell 3 which is a half of the spherical shell as shown in FIG. The squib 6 may be inserted from the inside of the ball skin 3 or may be inserted from the outside.

  As shown in FIG. 8 (b), the adhesive application process is performed with an adhesive 7 a (for example, a bond for woodwork (registered trademark), an appropriate adhesive such as glue, etc.) in the central region of the outer surface of the conductor 6 and the ball 3. ) Is applied.

  As shown in FIGS. 9 (a) and 9 (b), the adherend piece fixing step is set to a surface area smaller than the surface area of the bead 3 and is formed to be attachable to the central part of the bead 3. The through-hole 4 formed at the center of the piece 5 is inserted into the heat conducting wire 6, pushed so as to approach the ball skin 3, and pressed against the adhesive 7 a, so that the ball skin 3, the adherend piece 5, and the conducting wire 6 are connected. The adhesive 7a is solidified and the adhesive layer 7 is formed.

  Since the outer side of the center portion of the ball skin 3 is covered by the adherend piece 5, the strength is increased, and it is difficult to be deformed by an impact at the time of launch. The number, area, thickness, and diameter of the adherend pieces 5 can be adjusted as appropriate.

  As shown in FIGS. 9 and 10, when the adhesive 7 a is used to bond between the inner surface of the protruding portion 5 a and the outer surface of the conductor 6, the adhesive layer 7 is formed to expand upward, The movement of the squib 6 in the axial direction is prevented by the impact of. The protruding portion 5a has a shape in which the periphery is deformed when penetrating through the protrusion 503, and generally has an irregular shape.

The flying body component 1 in FIG. 11A uses pulp molding or plastic molding. Here, casting, press molding, injection molding, or the like is used to form a protruding portion 5a that is a standing wall that rises from the periphery of the through hole 4. Here Ri wall der protruding portion 5a is cylindrical shape, the diameter thereof is sized to fuse 6 is enabled fastened by insertable adhesive 7a.

  The flying body component 1 shown in FIG. 11B does not form the protruding portion 5a, but bonds the peripheral surface inside the through hole 5 and the conductive wire 6 with an adhesive 7a. Even in this case, sufficient strength can be obtained. For example, if the tip of the projection 503 is a concave shape, there is no protruding portion 5a. In this case, if the paper thickness of the adherend piece 5 is appropriately increased, there is no problem with the adhesiveness.

  The flying parts 1 and 201 manufactured as described above are packed with the split medicine, the parent star, the core star, etc. in the inside of the other halves, and these two are overlapped, and Japanese paper and craft are put on the outside. Apply a sticker on top of paper to make a spherical firework ball.

  According to the method for manufacturing the flying object parts 1, 201 according to the embodiment of the present invention, there are the same effects as the effects of the flying object parts 1, 201.

  The present invention is not limited to the above-described embodiment, and modifications and the like can be made without departing from the technical idea of the present invention. It will be included in the technical scope of the invention. For example, a floating firework made in the same structure as a launching firework is not classified as a launching firework depending on a legal point of view or the like, but it is of course included in the launching firework referred to in the present invention.

DESCRIPTION OF SYMBOLS 1 ... Flying-body component 2 ... Through-hole 3 ... Ball skin 4 ... Through-hole 5 ... Adhering piece 5a ... Protruding part 6 ... Fire conductor 7 ... Adhesive layer 7a ... Adhesive 201 ... Flying object part 205 ... Adhered piece 401 ... Flying object part 403 ... Ball skin 405 ... String 406 ... Fire conductor 407 ... Adhesive 501 .... Mold mold 502 ... convex part 503 ... projection 601 ... female mold 602 ... concave part 603 ... groove part 701 ... base paper

Claims (2)

A firework ball skin that is halved and has a through-hole formed in the center,
A standing wall that is set to have a surface area smaller than the surface area of the bead, is formed to be attachable to the center of the outer surface of the bead, has a through hole at the center, and stands from the periphery of the through hole. and the adherend pieces that have a certain protrusion,
A lead wire that is inserted through the through-holes of the leather and the piece to be adhered, and vertically inserted into the ball and the piece to be adhered; and
An adhesive layer for bonding the ball skin, the adherend piece, and the lead wire;
A flying fireworks part for launch fireworks, wherein the adhesive layer bonds the protruding portion and the conductor. A conducting wire insertion step of inserting the conducting wire up and down through a through hole formed at the center of the firework ball skin that is a halved body ,
An adhesive application step of applying an adhesive to a center portion of the outer surface of the fire conductor and the ball; and
A surface area smaller than the surface area of the bead skin is set , and an adherend piece having a protruding portion which is a standing wall standing up from a peripheral edge of a through hole provided in the center is inserted into the lead wire, and the adherend piece is attached to the ball skin. pushing so as to approach, the before and Symbol lens skin with adhering the adherend piece and fuse, adhering the squib and the projecting portion, and the adherend piece fixed solidifying said adhesive,
A method for manufacturing a flying fireworks part.