KR100881247B1 - Case for firecracker - Google Patents

Abstract

A case for a firecracker is provided to cut down the production cost and to improve the productivity of product by simplifying the manufacturing process. A case for a firecracker comprises: a case(100); an ignition string(300) which is drawn out to the lower part of the case; and an inserting hole(141) which is formed at a part of the case in the longitudinal direction in order to insert the ignition string. The inserting hole forms an insertion tube(151) in the outer side wall of the case and penetrates the inside of the case.

Description

Case for Firecrackers {Case for firecracker}

The present invention relates to a case for firecrackers, and more particularly, to improve product productivity and reduce product manufacturing costs by simplifying the process of making firecrackers, and to reduce the interference of the ignition string to prevent the risk of firecracker explosion accidents. It's about a firecracker case.

Recently, with the economic growth, the atmosphere to pursue leisure time is gradually spreading socially, and accordingly, various party events and event cultures are becoming popular.

Particularly, firecrackers, which are used for events such as birthdays and weddings, are used when the atmosphere of a celebration is at its peak, and colored confetti, which is sewn together with binge drinking, emits the atmosphere of the event hall. Plays an important role in dramatic and glamorous production.

Such a conventional firecracker 10 has been described in the prior art in the registration utility model registration No. 20-0302507 (name: party firecrackers), largely consists of a case 20 and a lid 30. As shown in FIG. 1, the case 20 is formed in a cylindrical shape, and an annular locking jaw 21 having a triangular cross section at the top thereof is formed along an inner circumferential surface thereof.

And, immediately below the locking jaw 21, the annular fitting groove 22 having a jaw is formed along the inner circumferential surface of the case 20, and the disc shaped lid 30 is fitted into the annular fitting groove 22. Although not shown in the drawing, the inside of the case 20 is filled with various colors of thin paper tape or colored paper such as gold foil or silver foil.

In addition, the lower end of the case 20, the ignition string (R) is drawn out, one end of the ignition string (R) is connected to the gunpowder inside the bottom of the case 20, the other end of the adhesive tape ( T) is attached to the lower outer surface of the case 20.

The conventional firecracker 10 configured as described above pulls the ignition string R from the adhesive tape T and pulls the lid 30 together with the explosion sound due to the instantaneous explosive power generated by the gunpowder inside the case 20. ) Is separated from the case 20, so that the paper tape is ejected out of the case 20 at once to enhance the atmosphere of the celebration event venue.

However, the conventional party firecracker 10 is attached to the case by the ignition straps through the adhesive tape to manufacture the firecrackers, this process requires a lot of work and a lot of manpower, making the firecracker manufacturing process is complicated and speeds up the production This results in a significant decrease in the productivity of the product, resulting in a decrease in the production of firecrackers. Also, the use of a separate adhesive tape to fix the ignition straps increases the additional cost of purchasing or producing the adhesive tape. There was also a problem of spending.

In addition, the increase in labor costs due to a large number of manpower and slow working speeds caused a problem that the price of the product increased, thereby lowering the price competitiveness of the product and worsening the profitability of the company.

Moreover, when the conventional party firecracker 10 is excessively applied when detaching the spark string attached by the adhesive tape, the gunpowder connected to the end of the spark string may unexpectedly explode, thereby causing the firecracker to explode. Not only people but also people around the firecrackers were exposed to the risk of safety accidents, and if the adhesive tape was weakly attached, the spark string could be removed from the case, unlike the user's intention. There was an aggravation.

In addition, the ignition strap attached by the adhesive tape has a narrow width of the adhesive tape, because only a very small portion of the ignition strap is attached, so that most of the ignition strap is exposed on the adhesive tape and the lower part long and messy. There is a problem that can not be neatly organize the fire, thereby seriously hurt the aesthetics of the firecracker, while increasing the concern that the spark can be pulled.

The present invention has been made in order to solve the conventional problems as described above, since the insertion of the ignition strap drawn out to the bottom of the case without the use of adhesive tape, simply inserted, thereby minimizing and simplifying the production process of firecrackers to improve product productivity To provide a firecracker case to reduce the cost of manufacturing the product.

Another object of the present invention is to provide a firecracker case to prevent the risk of unexpected firecracker explosion accident in advance because the use of the ignition braid only when the user wants.

The constitution of the present invention for achieving the above object, the explosives of the end of the spark string built into the case by pulling the spark string explodes, and firecrackers ejecting various colored paper or paper tapes embedded in the case with the opening of the lid; In the case, characterized in that the insertion means in the form of a hole in the upper and lower longitudinal directions in a part of the case so as to insert the ignition string drawn out to the lower end of the case.

The insertion means forms an insertion tube outside the case side wall to form an insertion hole therein.

In addition, the insertion means forms an insertion tube inside the case side wall to form an insertion hole therein.

In addition, the insertion means is formed through the insertion hole in the insertion tube to form an insertion tube inside the case, the upper end of the insertion tube is fixed to the inner side of the case, the lower end of the insertion tube is formed close to the center of the case bottom do.

In addition, the insertion means is provided with an insertion tube spaced inside the case to form an insertion hole in the insertion tube, and a plurality of fixing protrusions are formed between the insertion tube and the inner surface of the case.

On the other hand, the upper periphery of the withdrawal hole formed in the center of the lower case is formed to be inclined downward toward the center.

In addition, a fitting groove is further formed around the bottom of the case so that the ignition string drawn from the withdrawal hole at the bottom of the case may be fitted.

The present invention through the above-described problem solving means, it is possible to include a spark strap on the side of the case through a simple method of inserting the spark strap into the insertion hole, the sparkling strap as possible simply and quickly processing productivity and production of firecrackers There is an effect that can maximize the efficiency.

Moreover, the above-mentioned spark string treatment method can be used to more quickly process the spark string, thereby reducing labor costs by reducing the consumption of manpower, and also do not use a separate adhesive means such as adhesive tape, By reducing the cost of materials, the company can maximize the price competitiveness of the product and improve the profitability of the company.

In addition, before the ignition cord is inserted into the insertion hole, it is inserted into the fitting groove formed at the bottom of the case, so that the gap between the ignition strap and the lower part of the case is minimized, thereby minimizing the interference of the ignition strap, thereby preventing the ignition strap from falling out. Therefore, it also has the effect of preventing the risk of firecracker explosion accident by the spark string pull action, and also reduces the material length required for the production of firecrackers by reducing the length of use of the spark string.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

2 to 6 show the case for the firecracker of the present invention, it is composed of a case 100, a lid 200, and the insertion means.

Referring to FIG. 2, first, the case 100 is formed in a cylindrical shape made of a synthetic resin material. A protrusion 110 having a triangular or hemispherical cross section is formed along the inner circumferential surface at the top of the case 100, and the protrusion 110. The lower portion of the projection 110 and the stepped to form a stepped 130, and between the projection 110 and the stepped 130 forms a groove 120 into which the lid 200 is fitted. In addition, a plurality of locking jaws 132 are further formed on the lower inner circumferential surface of the stepped 130 to prevent the lid 200 from being excessively inserted beyond the stepped 130.

In addition, the upper end of the case 100 has a predetermined width and forms an incision 210 cut to the step 130, and between the incisions 210, a connection part 220 connected to the lid 200. By integrally forming, the lid 200 is coupled to the groove 120 formed on the top of the case 100. Of course, the connection portion 220 and the lid 200 is formed of the same material as the case 100, and manufactured integrally with the case 100 in the mold during molding.

In addition, a drawing hole 160 is formed at the center of the lower end of the case 100 so that the ignition string 300 coupled with the gunpowder G can be drawn out. Here, the inner bottom surface of the case 100 formed around the upper surface of the withdrawal hole 160 is formed to be inclined downward toward the center as shown in FIG. 3 to easily withdraw the ignition string 300 to the outside of the case 100. To be configured.

'자 형태의 끼움홈(170)을 형성하여, 케이스(100) 하단의 인출홀(160)을 통해 인출되는 점화끈(300)을 삽입홀에 삽입하기 이 전에, 점화끈(300)의 일부가 끼움홈(170)에 끼워질 수 있게 구성한다.In addition, a portion of the lower circumference of the case 100 is'

Before forming the insertion groove 170 of the shape of the shape, inserting the ignition braid 300 drawn out through the withdrawal hole 160 at the bottom of the case 100 into the insertion hole, a part of the ignition braid 300 It is configured to be fitted to the fitting groove 170.

The lid 200 is formed with the same diameter as the inner diameter of the groove 120, the lower surface is formed less than the diameter of the upper surface has a border formed inclined in an inverted triangle cross section.

On the other hand, the insertion means is formed to have a hole shape in the longitudinal direction of the upper and lower portions of the side portion of the case 100 so as to insert the ignition string 300 drawn out to the lower end of the case 100.

3 is a view illustrating a first embodiment of the insertion means, and in more detail, an insertion tube 151 is formed on an outer side surface of the side wall of the case 100, and the interior of the insertion tube 151. The insertion hole 141 is formed through. At this time, since the lower portion of the case 100 is formed in a conical shape having a wider upper circumference than the lower circumference, the spark string 300 is inserted into the insertion hole 141 along the lower outer surface of the case 100, thereby The shoelace 300 is prevented as much as possible from being caught in other objects or articles.

4 is a view showing a second embodiment of the above-described insertion means. More specifically, the insertion tube 152 is formed on the inner side surface of the side wall of the case 100 and inserted into the insertion tube 152. The hole 142 is formed through.

Here, the insertion tube 152 is formed in the case 100, so when covering the lid 200, the insertion tube 152 is at least stepped so that the insertion tube 152 is not caught on the lid 200 130 is molded to be located at the bottom.

In addition, since the lower portion of the case 100 is formed in a conical shape having a wider upper circumference than the lower circumference, the ignition string 300 is inserted into the insertion hole 142 along the lower outer surface of the case 100, and thus the ignition string The 300 is prevented from being caught by other external objects or articles as much as possible.

In addition, in the above-described first and second embodiments, the insertion pipes 151 and 152 are described and illustrated as being molded on any one of the inner side and the outer side wall of the side wall of the case 100. Tube 151, 152 can be molded on both the inner surface and the outer surface of the case 100, and such a configuration is also obvious that it is included in the configuration of the present invention.

FIG. 5 illustrates a third embodiment of the inserting means, and in more detail, an insertion tube 153 is formed in the case 100, and an insertion hole is formed in the insertion tube 153. 143 is formed through.

The insertion tube 153 is provided with the upper end fixed to the upper end of the inner side of the case 100, and the lower end fixed to the position close to the center of the inner bottom surface of the case 100, the inclined insertion tube 153 is provided do. In addition, since the insertion tube 153 is molded in the case 100, the upper end portion of the insertion tube 153 may be formed at least at the lower end of the step 130 as in the second embodiment.

FIG. 6 illustrates a fourth embodiment of the inserting means. More specifically, the insertion tube 154 is formed at a position spaced apart from the inner surface of the case 100 by a predetermined distance, and the insertion tube ( 154 through the insertion hole 144 is formed inside.

The inserting tube 154 and the inner surface of the case 100 form a plurality of fixing projections 154a to form the inserting tube 154 firmly, and inserting the tube 154 during injection molding of the product. ) And the case 100 can be integrally formed. In addition, since the insertion tube 154 is molded in the case 100, the upper end portion of the insertion tube 154 is molded to be provided at least at the lower step 130 as in the second and third embodiments. .

In addition, in the fourth embodiment, the insertion tube 154 is described and illustrated as being spaced apart inside the case 100, but in some cases, the insertion tube 154 may be provided outside the case 100. In addition, the case 100 may be provided to be spaced apart both inside and outside, and such a configuration also corresponds to the obvious matters included in the configuration of the present invention.

In addition, since the lower part of the case 100 is formed to be inclined in a conical shape having a wider upper circumference than the lower circumference, the ignition string 300 is inserted into the insertion hole 144 along the lower outer surface of the case 100, thereby causing a dot. The shoelace 300 is prevented as much as possible from being caught in other objects or articles.

On the other hand, all of the above-described first, second, third, fourth embodiments of the case 100 and the insertion tube (150) to form the case 100 and the insertion tube 151, 152, 153, 154 integrally ( 151, 152, 153 and 154 to manufacture a mold that can be molded at the same time, and integrally molded through the injection molding through the mold.

In addition, in the above-described first, second, third, and fourth embodiments, since the ignition string 300 is inserted into the lower ends of the insertion holes 141, 142, 143, and 144, the lower case 100 is inserted. The ends of the holes 141, 142, 143, and 144 should be formed through, but the ends of the insertion holes 141, 142, 143 and 144 of the top of the case 100 may be closed in some cases. .

Referring to the operation and effect of the present invention configured as described in detail as follows.

In order to produce firecrackers using the firecracker case of the present invention, first, the firecracker case 100 should be manufactured, which is manufactured by injection molding through a mold, and the lid 100 together with the case 100 through the mold ( 200 and the insertion holes 141, 142, 143, 144 or / and insertion tubes 151, 152, 153 and 154 are integrally molded.

As such, the manufactured case 100 has a built-in confetti, and the spark string 300 having the gunpowder (G) at one end is embedded in the lower case 100, the other of the spark string 300 The end is withdrawn through the withdrawal hole 160 at the bottom of the case 100, and covers the lid 200 on the case 100.

Thereafter, the ignition cord 300 drawn out to the drawing hole 160 at the bottom of the case 100 is inserted into the fitting groove 170, and the end of the ignition string 300 is inserted into the insertion hole 141 according to the embodiment. (142) 143 (144) by inserting the inside of the ignition strap 300 to the case 100 side, thereby completing the production of firecrackers.

As such, before the ignition cord 300 is inserted into the insertion holes 141, 142, 143 and 144, the ignition cord 300 is inserted into the fitting groove 170 formed at the bottom of the case 100. By reducing the length of the unexpected it is possible to prevent the pulling of the ignition string 300.

As described above, in the case where the fitting groove 170 is formed and the insertion hole 143 is formed as in the third embodiment, between the lower end of the case 100 and the withdrawal hole 143 through which the ignition strap 300 is drawn out. Since the distance is minimized, the ignition braid 300 may be reduced to the maximum.

In addition, in the case where the fitting groove 170 is not present, the ignition string 300 should be fixed to the inside and the outside of the case 100 without being inserted into the fitting groove 170, which is inserted into the fitting groove 170. Since the ignition cord 300 is longer than other embodiments of the present invention inserted into the insertion hole, the interference is made more frequently, which increases the risk of firecracker explosion accident by the unexpected ignition string pulling action. Will be.

That is, the case for the firecracker of the present invention prevents the sparking cord 300 pulling action as described above to prevent unexpected firecracker explosion accident, thereby preventing the risk of safety accidents caused by the firecracker.

In addition, the case for the sparklers of the present invention, so as to insert the spark string 300 in the fitting groove 170 as described above, than the case that does not fit the spark string 300 in the fitting groove 170 of the spark string 300 By shortening the length can reduce the length of use of the ignition string (300), thereby making it possible to surely reduce the production cost of firecrackers.

In addition, in the case of the third embodiment shown in FIG. 5, since the lower end of the insertion hole 143 is formed as close as possible to the fitting groove 170, the length of the ignition cord 300 is shorter than that of the other embodiments. This can further reduce product material costs.

In particular, the case for the firecracker of the present invention, as described above, insert the ignition cord 300 into the insertion hole 141, 142, 143, 144 by a very simple and simple way to insert the ignition strap 300 case Since it is provided on the side (100), unlike the complicated process of peeling off the existing adhesive tape to attach the ignition strap 300, by processing the ignition strap 300 as easily and quickly as possible to improve product productivity, thereby producing the product The efficiency can be maximized.

Furthermore, since the ignition string 300 is processed more quickly through the processing method of the ignition cord 300 as described above, the labor cost can be reduced by reducing the consumption of manpower, and additional adhesive means such as adhesive tape By treating the ignition without using it, it is possible to reduce the material cost required for the production of firecrackers, thereby maximizing the price competitiveness of the product and further improving the profitability of the company.

On the other hand, the present invention has been described in detail only with respect to the specific examples described above it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, it is natural that such variations and modifications belong to the appended claims. .

1 is a perspective view showing a firecracker according to the prior art,

2 is a perspective view of the firecracker using the firecracker case according to the first embodiment of the present invention,

Figure 3 is a side cross-sectional view and A-A line cross-sectional view showing a first embodiment of the firecracker case according to the present invention,

Figure 4 is a side cross-sectional view and B-B line cross-sectional view showing a second embodiment of the firecracker case according to the present invention,

5 is a side cross-sectional view and a C-C line cross-sectional view showing a third embodiment of the firecracker case according to the present invention;

Figure 6 is a side cross-sectional view and D-D line cross-sectional view showing a fourth embodiment of the firecracker case according to the present invention.

* Description of Major Symbols in Drawings *

100: case 110: protrusion

120: groove 130: step

141, 142, 143, 144: insertion holes 151, 152, 153, 154: insertion pipe

160: withdrawal hole 170: fitting groove

200: lid 210: incision

220: connection portion 300: ignition string

Claims (7)

In the case for firecrackers that explode the gunpowder at the end of the ignition string built into the case by pulling the ignition string and eject the various colored paper or paper tapes embedded in the case with the opening of the lid. Case for firecrackers, characterized in that the integrated insert means of the hole shape in the longitudinal direction, the upper and lower portions in a part of the case 100 so as to insert the ignition strap 300 is drawn out to the bottom of the case (100). The case of the firecracker according to claim 1, wherein the insertion means forms an insertion tube (151) outside the side wall of the case (100) to penetrate the insertion hole (141) therein. The case of the firecracker according to claim 1, wherein the insertion means forms an insertion tube (152) inside the side wall of the case (100) to penetrate the insertion hole (142) therein. According to claim 1, The insertion means is formed through the insertion hole 143 inside the insertion tube 153 by forming an insertion tube 153 in the case 100, the top of the insertion tube 153 The case 100 is fixed to the inner surface, the lower end of the insertion tube 153 is a case for firecrackers, characterized in that the case 100 is fixed close to the center. According to claim 1, wherein the insertion means is provided with an insertion tube 154 spaced apart inside the case 100 to form an insertion hole 144 through the insertion tube 154, and the insertion tube 154 and Firecracker case, characterized in that a plurality of fixing projections (154a) formed between the inner surface of the case (100). The case of the firecracker according to claim 1, wherein the upper circumference of the drawing hole 160 formed at the center of the lower end of the case 100 is inclined downward toward the center. According to claim 6, The bottom of the case 100, characterized in that the fitting groove 170 is further formed so that the ignition strap 300 drawn from the withdrawal hole 160 at the bottom of the case 100 can be fitted Firecracker case to say.

Images