JP3178310U - Lid fireworks extension cover - Google Patents

Abstract

An object of the present invention is to produce a firework in which ignition from a lead wire proceeds evenly and instantaneously at the time of fireworks shoot-off, and the height and size of the shoot-up is uniform and concentrically opened.
By closing the tip of the cylinder filled with black powder in the extension of the lead wire with a lid, the force for closing the tip of the cylinder becomes constant, and the ignition to the split medicine is rapidly and uniformly expanded concentrically. As a result, the height of the flying fireworks is fixed, and the fireworks open in a beautiful concentric circle. Furthermore, the manufacturing process for attaching the lid of the present invention to the lead wire extension becomes easy and takes a short time. As long as the material can be molded, an inexpensive material can be used. Biodegradable resins can be produced in large quantities at low cost and are ecologically superior.
[Selection] Figure 3

Description

  The present invention relates to a structure of a lead wire that ignites a split medicine in the center of a firework ball when the fireworks are launched, and particularly to a structure and a material of a tip portion of an extension portion.

The flying fireworks that color the night sky are beautiful (1) wide open, (2) round (concentric), and (3) open at the same height. Up to now, fireworks producers have studied and worked hard to achieve the above.

  For the fireworks display: 1. Ignite black powder, which is said to be the propellant at the bottom of the tube. 2. A fireworks ball is launched, and at that time, the fire is ignited by a gunpowder flame, which is said to be called “Oyamichi”. 3. The split medicine packed in the center of the fireworks ball ignites in the sky. 4. Ignite the stars packed in fireworks and create a spherical shape while scattering. There is an order of fireworks opening. In the series of processes, it is very difficult to open the fireworks into a perfect sphere at the same height or the intended height, and high skill of fireworks is required.

However, up to now, the improvement points have been put in the steps 1, 2, 4 and 5 of the above-mentioned firework driving process. Many prior technological developments have been made on improving fireworks materials, in particular, split materials, materials and shapes such as ball skins and stars, or structures such as support bases and flying platforms that support fireworks. However, the present inventor is particularly important for opening the fireworks in a large spherical shape at the same height. The fire igniting from the lead wire to the lead wire extension in step 3 is near the center of the fireworks ball at the tip of the extension. So I came up with the idea that it was to ignite the split medicine instantly and uniformly.

  As shown in FIG. 1, the firework fireball is composed of a conductive wire coated with black powder and a conductive wire extension, a splitting agent, a star, and a ball skin connected thereto, and ignites and then connects the conductive wire as shown in FIG. The fire wire extension is ignited, and then the split medicine packed in the center of the firework ball is ignited, and the fireworks are opened. In order to ignite the firework ball lead, it is necessary to ignite the propellant, and there are two methods: the direct ignition method in which a traditional person puts fire directly into the cylinder and the current mainstream electric ignition method. It has been broken.

There is a mechanism that uses a lead wire to ignite the propellant contained in the cylinder in common with the two ignition methods, and this device can create a time difference because the burning speed of the lead wire is about 120 cm / min. There are advantages and it is applied to various devices. The ignition method is to ignite using incense sticks, torches, pyrotechnics for electric ignition, etc. on the lead wire. 1. Ignition directly from the fire of the lead wire. 2. Attach a device called "fire" to the end of the lead wire and ignite it indirectly. There are three types: igniting using a pyrotechnics called a fast flame that burns at about 10 m / sec. 3. Is the mainstream of the current launching mechanism, and it is possible to produce a subtle time difference by using a lead wire. Disadvantages include the effort to make a device of a lead wire + a fast wire and the cost of the fast wire. The present fireworks mechanism is 2. Or 3. A fireworks cylinder mechanism is created, and a set is made by connecting the conductors on the cylinder with fast-firing lines.

Currently, the electric ignition method is mainly used. There are two general product names for pyrotechnics for electric ignition, which are called "ignition ball" and "electric lead", respectively. Although there are structural differences, they are all the same in that they are ignited by electricity. As an ignition method (device), 1. 1 of the lead wire ignition system. 1. Use electric ignition pyrotechnics instead of 1 of the lead wire ignition system. And 2. Electric ignition pyrotechnics are used to ignite. It is safer than igniting the set fast firing line directly by hand, and it can be ignited at the timing, so you can produce freely. Above 1. Is used for countdown, fireworks that match music, etc. 2. With regard to, the ignition of a set in which the fireworks are connected with a fast-fire wire is performed with a pyrotechnic for electric ignition. As an advantage, it is safer than directly igniting the set fast firing line by hand, and it can be ignited by looking at the timing. Currently, most are 2. This is an electric ignition system.

  The electrical ignition method is safer than directly igniting the set fast firing line by hand, and it can be ignited at the timing, so it has the advantage that it can be freely produced, but conversely 1 . Two wires are always necessary to conduct electricity, and if you try to ignite many in a remote place, the arrangement becomes complicated and extremely complicated. 2. Leakage current from electrical appliances, currents caused by lightning strikes, etc., and is easily affected by the weather or restricted by electrical appliances and locations. 1. One pyrotechnic item for electric ignition is required for each fireworks ball, which increases the cost. Since the launch program is complicated, there is a problem that an ignition mistake may occur. The two ignition methods have advantages and challenges, and are currently used in combination with the type of fireworks, flying conditions, and purpose. Various ideas have been made about ignition of the lead wire, and there are many patents or utility models that have been applied for.

  However, the structure and material at the tip of the squib wire extension remains the same as before, and no significant improvements have been made so far. The tip of the squib wire extension is a tube, and many are tubular tubes made of paper or other materials. When the paper tube is used as the lead wire extension part, the work procedure for making fireworks balls is to attach the lead wire and the lead wire extension part to the ball skin, put it in a sphere in the order of stars and split medicine, and glue the outside of the ball skin. Paste paper with agent to make it spherical. At that time, the work of attaching the lead wire and the lead wire extension to the hemispherical ball skin is done by twisting the paper at the tip of the paper tube of the lead wire extension and fixing it with glue etc., closing the tip of the paper tube and drying it. It was a time-consuming task. The work required skill, and in addition to individual differences, even the same worker had unevenness of completion. In addition, since the tip is closed only by twisting and fixing with glue, when the fire moves from the lead wire to the extension and the fire at the tip of the extension ignites the split, the ignition time varies and the split is ignited In some cases, the fireworks did not open in a concentric manner. Therefore, the elements of the beauty of flying fireworks (1) wide open, (2) round (concentric), (3) open at the same height have not necessarily been achieved.

The inventor paid attention to the process leading to the ignition of the fireworks ball splitting from the lead wire extension that had not been noticed so far, and observed it in detail, and as a result of the device, by closing the tube of the lead wire extension with the lid It was found that the ignition to the split medicine rapidly expanded uniformly and concentrically. Further, the shape of the lid may be a shape that enters the inside of the tip of the tube of the squib conductor extension, or a shape that covers the tip of the tube in the shape of a cap exhibits the same effect. In the case of a shape that enters the inside of the tip of the tube of the lead wire extension portion, if the shape of the portion in contact with the inside of the lower tube is a taper shape, the mounting operation is facilitated. Furthermore, it has been found that when the cylinder is closed with the lid of the present invention, the force to close the cylinder at the tip becomes constant.

    The purpose of the present invention is that the process of igniting the splitting agent by the fire ignited in the lead when the fireworks are launched spreads concentrically quickly, and the large concentric circle is launched at the same height in the night sky. An object of the present invention is to provide a structure of a fire wire extension portion of a fireworks ball and a lid for closing the tip and a fire wire extension portion closed by the lid.

The invention of claim 1 is a squibing wire extension portion of the flying fireworks and is characterized in that the end of the tube is closed.

  The invention of claim 2 is characterized in that the lower part of the lid of claim 1 enters the inside of the tube of the lead wire extension.

The invention of claim 3 is characterized in that the lower portion of the lid of claim 1 or 2 is tapered and contacts the inside of the tip of the tube of the lead wire extension.

The invention of claim 4 is characterized in that the lid of claim 1 is cap-shaped and covers the tip of the squib wire extension.

The invention of claim 5 is characterized in that it is a firework extension for flying fireworks whose tip is closed by the lid of claim 1, 2, 3 or 4.

According to the first aspect of the invention, when the fire transmitted through the lead wire is transmitted from the lead wire extension part to the split medicine and is ignited, it is discharged at once from the cylinder of the lead conductor extension part. By igniting evenly, the fireworks shoot up like a large concentric circle.

According to the second aspect of the present invention, it is easy to attach the tip of the tube of the lead wire extension to the tip of the tube of the lead wire extension, and the force for closing the tube of the tip of the lead wire extension can be made constant.

According to the third aspect of the present invention, it is easy to attach the tip of the tube of the squib wire extension to the tip of the stub wire extension, and the force for closing the tube of the stub extension can be made constant.

According to the fourth aspect of the present invention, it is easy to attach the tip of the tube of the lead wire extension to the tip of the tube of the lead wire extension, and the force for closing the tube of the tip of the lead wire extension can be made constant.

According to the fifth aspect of the present invention, it is possible to facilitate the production of flying fireworks and to shorten the time. The produced fireworks show a large concentric circle at the same height.

Structural drawing of the firework fireworks. The squib conductor and squib conductor extension are shown. The schematic diagram which the fire which ignited the lead wire ignites the extension part, skips the cover of this invention, and ignites the split medicine. An example of the lid | cover which closes the pipe | tube at the front-end | tip part of the firework extension part for the fireworks of this invention. An example of the lid | cover which closes the pipe | tube at the front-end | tip part of the firework extension part for the fireworks of this invention. An example of the lid | cover which closes the pipe | tube at the front-end | tip part of the firework extension part for the fireworks of this invention. An example of the lid | cover which closes the pipe | tube at the front-end | tip part of the firework extension part for the fireworks of this invention. An example of the lid | cover which closes the pipe | tube at the front-end | tip part of the firework extension part for the fireworks of this invention.

Embodiments of the present invention will be described below. In the embodiment of the present invention, a limited fireworks ball is manufactured using a limited material, but it is obvious that the embodiment of the present invention is not limited to the described contents. Examples will be specifically described below.

  The lid that closes the tube at the tip of the squib wire extension may have a shape in which the lower part enters the inside of the tube or a shape that covers the tip in a cap shape. If the lower part of the lid is tapered and enters the inside of the tube and comes into contact with the inside of the tube, it is easy to make the force for closing the tube at the tip of the igniter wire extension constant.

The lid | cover which closes the cylinder of the front-end | tip of a lead wire extension part should just be a solid thing on normal conditions. The material of the lid may be paper, ceramics, glass, inorganic material, metal, resin, or a mixed part or composite thereof.
Using biodegradable resin preserves the environment even if the residue is left unattended.

A lead wire extension with a cylinder closed with a lid having the shape shown in FIG. 3 was produced. The work was easy and the force to close the tube at the tip of the squib wire extension was constant.

  The tube at the tip of the lead wire extension was closed with the lid of the shape shown in FIG. 4 to produce the lead wire extension. The work was easy and the force to close the tube at the tip of the squib wire extension was constant. A No. 3 ball was attached in a spherical shape from the outside in the order of stars and split medicine, and the outside of the ball skin was made into a spherical shape by applying a paste with a paste. 10 shots were produced. For launching, make a 60cm high stainless steel cylinder, and connect the conductors on the cylinder with fast flames to create a set, and fireworks up to 120m high 25g, which is the amount to fry, was charged in a tube, ignited and fireworks fried. For the launch site, we selected a background with a mountain that would be the standard height. Launched at 10 minute intervals. The standard height against the backdrop of the mountain was constant and showed a concentric shape.

  A lead wire extension with a cylinder closed with a lid of the shape shown in FIG. 5 was produced. The work was easy and the force to close the tube at the tip of the squib wire extension was constant.

  A lead wire extension with a cylinder closed with a lid of the shape shown in FIG. 6 was produced. The work was easy and the force to close the tube at the tip of the squib wire extension was constant.

  A lead wire extension with a cylinder closed with a lid of the shape shown in FIG. 7 was produced. The work was easy and the force to close the tube at the tip of the squib wire extension was constant.

  The present invention provides a lid that closes the end of the tube of the firework extension of the optimum firework and a firewire extension that is closed by the lid to fly the firework in a concentric circle at the same height (or a predetermined height). I will provide a. At the same time, it is extremely easy to use the lid of the tip of the present invention, in other words, the extension tip can be easily and easily manufactured by a general worker who is not a skilled worker, and the closing pressure of the cylinder is stable. Can be constant. Furthermore, it is possible to easily and easily complete the work of attaching the conductor extension portion closed by the lid to the skin. Fireworks production is a dangerous and delicate work, and it is possible to produce fireworks that open more safely, cheaply and beautifully by making the conductor extension production and installation work uniform and easy.

In order to manufacture a firework that opens beautifully in a large concentric shape at the same height, the present invention can be used to easily and easily manufacture an extension of a conductor, even for non-skilled workers. Provided are a lid for closing a tube, and a squib wire extension having the tube closed by the lid.

  The present invention relates to a structure of a lead wire that ignites a split medicine in the center of a firework ball when the fireworks are launched, and particularly to a structure and a material of a tip portion of an extension portion.

The flying fireworks that color the night sky are beautiful (1) wide open, (2) round (concentric), and (3) open at the same height. Up to now, fireworks producers have studied and worked hard to achieve the above.

  For the fireworks display: 1. Ignite black powder, which is said to be the propellant at the bottom of the tube. 2. A fireworks ball is launched, and at that time, the fire is ignited by a gunpowder flame, which is said to be called “Oyamichi”. 3. The split medicine packed in the center of the fireworks ball ignites in the sky. 4. Ignite the stars packed in fireworks and create a spherical shape while scattering. There is an order of fireworks opening. In the series of processes, it is very difficult to open the fireworks into a perfect sphere at the same height or the intended height, and high skill of fireworks is required.

However, up to now, the improvement points have been put in the steps 1, 2, 4 and 5 of the above-mentioned firework driving process. Many prior technological developments have been made on improving fireworks materials, in particular, split materials, materials and shapes such as ball skins and stars, or structures such as support bases and flying platforms that support fireworks. However, the present inventor is particularly important for opening the fireworks in a large spherical shape at the same height. The fire igniting from the lead wire to the lead wire extension in step 3 is near the center of the fireworks ball at the tip of the extension. So I came up with the idea that it was to ignite the split medicine instantly and uniformly.

  As shown in FIG. 1, the firework fireball is composed of a conductive wire coated with black powder and a conductive wire extension, a splitting agent, a star, and a ball skin connected thereto, and ignites and then connects the conductive wire as shown in FIG. The fire wire extension is ignited, and then the split medicine packed in the center of the firework ball is ignited, and the fireworks are opened. In order to ignite the firework ball lead, it is necessary to ignite the propellant, and there are two methods: the direct ignition method in which a traditional person puts fire directly into the cylinder and the current mainstream electric ignition method. It has been broken.

There is a mechanism that uses a lead wire to ignite the propellant contained in the cylinder in common with the two ignition methods, and this device can create a time difference because the burning speed of the lead wire is about 120 cm / min. There are advantages and it is applied to various devices. The ignition method is to ignite using incense sticks, torches, pyrotechnics for electric ignition, etc. on the lead wire. 1. Ignition directly from the fire of the lead wire. 2. Attach a device called "fire" to the end of the lead wire and ignite it indirectly. There are three types: igniting using a pyrotechnics called a fast flame that burns at about 10 m / sec. 3. Is the mainstream of the current launching mechanism, and it is possible to produce a subtle time difference by using a lead wire. Disadvantages include the effort to make a device of a lead wire + a fast wire and the cost of the fast wire. The present fireworks mechanism is 2. Or 3. A fireworks cylinder mechanism is created, and a set is made by connecting the conductors on the cylinder with fast-firing lines.

Currently, the electric ignition method is mainly used. There are two general product names for pyrotechnics for electric ignition, which are called "ignition ball" and "electric lead", respectively. Although there are structural differences, they are all the same in that they are ignited by electricity. As an ignition method (device), 1. 1 of the lead wire ignition system. 1. Use electric ignition pyrotechnics instead of 1 of the lead wire ignition system. And 2. Electric ignition pyrotechnics are used to ignite. It is safer than igniting the set fast firing line directly by hand, and it can be ignited at the timing, so you can produce freely. Above 1. Is used for countdown, fireworks that match music, etc. 2. With regard to, the ignition of a set in which the fireworks are connected with a fast-fire wire is performed with a pyrotechnic for electric ignition. As an advantage, it is safer than directly igniting the set fast firing line by hand, and it can be ignited by looking at the timing. Currently, most are 2. This is an electric ignition system.

  The electrical ignition method is safer than directly igniting the set fast firing line by hand, and it can be ignited at the timing, so it has the advantage that it can be freely produced, but conversely 1 . Two wires are always necessary to conduct electricity, and if you try to ignite many in a remote place, the arrangement becomes complicated and extremely complicated. 2. Leakage current from electrical appliances, currents caused by lightning strikes, etc., and is easily affected by the weather or restricted by electrical appliances and locations. 1. One pyrotechnic item for electric ignition is required for each fireworks ball, which increases the cost. Since the launch program is complicated, there is a problem that an ignition mistake may occur. The two ignition methods have advantages and challenges, and are currently used in combination with the type of fireworks, flying conditions, and purpose. Various ideas have been made about ignition of the lead wire, and there are many patents or utility models that have been applied for.

  However, the structure and material at the tip of the squib wire extension remains the same as before, and no significant improvements have been made so far. The tip of the squib wire extension is a cylinder, and many are tubular cylinders made of paper or other materials. When the paper tube is used as the lead wire extension part, the work procedure for making fireworks balls is to attach the lead wire and the lead wire extension part to the ball skin, put it in a sphere in the order of stars and split medicine, and glue the outside of the ball skin. Paste paper with agent to make it spherical. At that time, the work of attaching the lead wire and the lead wire extension to the hemispherical ball skin is done by twisting the paper at the tip of the paper tube of the lead wire extension and fixing it with glue etc., closing the tip of the paper tube and drying it. It was a time-consuming task. The work required skill, and in addition to individual differences, even the same worker had unevenness of completion. In addition, since the tip is closed only by twisting and fixing with glue, when the fire moves from the lead wire to the extension and the fire at the tip of the extension ignites the split, the ignition time varies and the split is ignited In some cases, the fireworks did not open in a concentric manner. Therefore, the elements of the beauty of flying fireworks (1) wide open, (2) round (concentric), (3) open at the same height have not necessarily been achieved.

The inventor paid attention to the process leading to the ignition of fireworks ball splitting from the lead wire extension, which had not been noticed so far, and observed it in detail, and as a result of contrivance, by closing the cylinder of the lead wire extension with a lid It was found that the ignition to the split medicine rapidly expanded uniformly and concentrically. Further, the shape of the lid may be a shape that enters the inside of the tip of the cylinder of the conductor extension, or a shape that covers the cylinder at the tip like a cap exhibits the same effect. In the case of the shape that enters the inside of the tip of the cylinder of the lead wire extension, if the shape of the part that contacts the inside of the lower cylinder is tapered, the mounting work becomes easy, and the cylinder at the tip of the extension and the tapered part are tight. Crimp. Furthermore, it has been found that when the cylinder is closed with the lid of the present invention, the force to close the cylinder at the tip is fixed.

    The purpose of the present invention is that the process of igniting the splitting agent by the fire ignited in the lead when the fireworks are launched spreads concentrically quickly, and the large concentric circle is launched at the same height in the night sky. An object of the present invention is to provide a structure of a fire wire extension portion of a fireworks ball and a lid for closing the tip and a fire wire extension portion closed by the lid.

The invention of claim 1 is a lid that closes the tip of a cylinder filled with gunpowder in the extension part of the lead of fireworks, the upper part of which is flat and covers the tip of the cylinder, and the lower part of the lid that contacts the cylinder is tapered. It is characterized in that it is inserted into the inside of the cylinder of the extended portion and crimped.

  The invention of claim 2 is a lid that closes the tip of a cylinder filled with gunpowder in a firework extension portion of the flying fireworks, the upper part of which covers the tip of the cylindrical part, and the tip of the upper part of the lid is pointed. The lower part to be inserted into the taper is tapered, and is inserted into the inside of the cylinder of the extension part to be crimped.

The invention of claim 3 is a cap that closes the tip of a cylinder filled with explosives in the extension part of the lead of firework fireworks and has a cap-like structure, and the tip of the extension is closed by covering the outside of the extension cylinder. Features.

The invention of claim 4 is characterized in that it is a firework lead for flying fireworks whose end of the extension is closed by the lid of claim 1, 2 or 3.

According to the invention described in claim 1, when the fire transmitted through the lead wire is transmitted from the lead wire extension part to the split medicine and is ignited, it is discharged at once from the cylinder of the lead wire extension part, By igniting evenly, the fireworks shoot up like a large concentric circle. Moreover, the operation | work which attaches to the front-end | tip of the cylinder of a heat conducting wire extension part becomes easy, and the force which closes the cylinder of a heat conducting wire extension part front end can be made constant.

According to the invention described in claim 2, when the fire transmitted through the lead wire is transmitted from the extension portion of the lead wire to the splitting agent and ignites, it is discharged from the cylinder of the extension portion of the lead wire at once, and the transmitted fire is promptly applied to the surrounding splitting agent and By igniting evenly, the fireworks shoot up like a large concentric circle. Moreover, the operation | work which attaches to the front-end | tip of the cylinder of a heat conducting wire extension part becomes easy, and the force which closes the cylinder of a heat conducting wire extension part front end can be made constant.

According to the invention described in claim 3, when the fire transmitted through the lead wire is transmitted from the lead wire extension part to the split medicine and is ignited, it is discharged at once from the cylinder of the lead wire extension part. By igniting evenly, the fireworks shoot up like a large concentric circle. Moreover, the operation | work which attaches to the front-end | tip of the cylinder of a heat conducting wire extension part becomes easy, and the force which closes the cylinder of a heat conducting wire extension part front end can be made constant.

According to the fourth aspect of the present invention, it is possible to facilitate the production of flying fireworks and to shorten the time. The produced fireworks show a large concentric circle at the same height.

Structural drawing of the firework fireworks. The schematic diagram which the fireworks which have the squib wire structure of claim 4 ignite. The fire ignited on the lead wire ignites the extension, and the cover of the present invention is blown off to ignite the split medicine. The schematic diagram of the lid | cover of Claim 1 of this invention. The schematic diagram showing the cross section of the lid | cover of Claim 2 of this invention. The schematic diagram of the lid | cover of Claim 3 of this invention.

Embodiments of the present invention will be described below. In the embodiment of the present invention, a limited fireworks ball is manufactured using a limited material, but it is obvious that the embodiment of the present invention is not limited to the described contents. Examples will be specifically described below.

  The lid that closes the cylinder at the tip of the squib wire extension may have a lower part inserted into the inside of the cylinder or a cap that covers the tip. Furthermore, if the lower part of the lid is tapered, it can be easily inserted into the inside of the cylinder, and it is easy to make the force for closing the cylinder at the end of the lead wire extension portion constant by pressing the inside of the cylinder.

The lid that closes the cylinder at the tip of the squib wire extension may be solid under normal conditions. The material of the lid may be paper, ceramics, glass, inorganic material, metal, resin, or a mixture or composite thereof.
When biodegradable resin is used, the environment can be preserved even if the residue is left unattended.

A lead wire extension with a cylinder closed with a lid having the shape shown in FIG. 3 was produced. It was easy to attach to the lead wire, and the force to close the cylinder at the tip of the lead wire extension was constant.

The cylinder at the tip of the squib wire extension was closed with a lid having a shape having a cross section shown in FIG. The work was easy and the force to close the cylinder at the tip of the squib wire extension was constant. A No. 3 ball was attached in a spherical shape from the outside in the order of stars and split medicine, and the outside of the ball skin was made into a spherical shape by applying a paste with a paste. 10 shots were produced. For launching, a stainless steel cylinder is created with a height of 60 cm, and a set is created by connecting the lead wires on the cylinder with fast firing lines. The amount of gunpowder for launching is set to a height of 120 m. 25g, which is the amount to fry, was charged in a tube, ignited and fireworks fried. For the launch site, we selected a background with a mountain that would be the standard height. Launched at 10 minute intervals. The standard height against the backdrop of the mountain was constant and showed a concentric shape.

  A lead wire extension with a cylinder closed with a lid of the shape shown in FIG. 5 was produced. The work was easy and the force to close the cylinder at the tip of the squib wire extension was constant.

  The present invention is a lid that closes the end of the cylinder of the firework extension of the optimum firework and is closed by the lid to fly the firework in a concentric circle at the same height (or a predetermined height). I will provide a. At the same time, it is extremely easy to use the lid of the tip of the present invention, in other words, the extension tip can be easily and easily manufactured by a general worker who is not a skilled worker, and the cylinder closing pressure is stable. Can be constant. Furthermore, it is possible to easily and easily complete the work of attaching the conductor extension portion closed by the lid to the skin. Fireworks production is a dangerous and delicate work, and it is possible to produce fireworks that open more safely, cheaply and beautifully by making the conductor extension production and installation work uniform and easy.

In order to manufacture a firework that opens beautifully in a large concentric shape at the same height, the present invention can be used to easily and easily manufacture an extension of a conductor, even for non-skilled workers. Provided are a lid for closing a cylinder, and a squib conductor extension having the lid closed at the tip of the cylinder.

Claims (5)

A lid that is an extension part of a fireworks line and closes the tip of the cylinder. The lid of the lead wire extension part for flying fireworks, wherein the lower part of the lid of claim 1 enters the inside of the tube of the lead wire extension part. The lid of the firework extension for flying fireworks, wherein the lower part of the lid of claim 1 or 2 is tapered and contacts the inside of the tip of the tube of the firework extension. The lid of the lead wire extension for flying fireworks, wherein the lid of claim 1 is cap-shaped and covers the tip of the lead wire extension. A firework lead extension for flying fireworks, wherein the tip is closed by the lid of claim 1, 2, 3 or 4.