JPH08170898A - Device for displaying in air, and manufacture thereof - Google Patents

Abstract

PURPOSE: To provide a means to color a gas and to effect display of a message, such as letters or diagrams, in air simply like a cracker by means of a gas colored by a coloring means for injection. CONSTITUTION: An air display device 1 is formed in such a manner that a capsule 2 in an inverted conical shape forms a casing. A cartridge 3 wherein an explosive is tightly wound by a thick paper member is disposed as an explosive body on the bottom of the capsule 2. The cartridge 3 is contained in a draft hood 4 opened in a direction in which the gas substance is ejected, and a string 5 for a trigger extending through the draft hood 4 to the outside of the capsule 2 is connected to the rear part thereof. By pulling out the string 5, an explosive in the cartridge 3 is ignited and the cartridge 3 is exploded. Partition membranes 6 and 7 and first and second air chambers 8 and 9 uniformize diffusion of a gas substance generated by explosion. This constitution approximately uniformly ejects a gas through each ejection nozzle to display letters and diagrams.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying characters, figures, etc. in the air and a method for manufacturing the same, and more particularly, a display for displaying characters, figures, etc. in the air by a gas body generated by the explosion of explosive powder. The present invention relates to a device and a manufacturing method thereof.

[0002]

2. Description of the Related Art At a welcoming meeting such as a wedding reception, a pompon and a so-called cracker that emits a vibrant sound may be sounded. This cracker is designed to ignite the internal powder by pulling out the string for the trigger, to emit a sound and to scatter some confetti.

However, such a cracker does not have a message property other than that it emits sound. If it can be used as easily as this cracker and can display some kind of message such as characters and figures in the air, it can greatly enhance the place of a banquet such as a wedding reception. A method of using laser light is known as such a device for displaying characters and the like in the air, but the device that generates this laser light is expensive and large-scale, and preparation for setup is also required. It takes time and effort to do so, and it is not something that you can use freely on the spot. in this way,
Conventionally, there has been no display device that can be used as easily as a cracker and that can display some kind of message such as characters and figures in the air.

[0004]

The present invention was devised in view of the above circumstances, and can display any message such as characters and figures in the air, and can be easily used like a cracker. It is an object of the present invention to provide an aerial display device and a manufacturing method thereof.

[0005]

In order to solve the above-mentioned problems, the present invention provides a thick paper member which is ignited by pulling out a connected trigger string to generate a gas body in a housing having a predetermined shape. For expelling the generated gas body by having a so-called medicine package in which the explosive is tightly wound, and a plurality of ejection holes provided at predetermined intervals on a contour line showing predetermined characters and figures. For example, there is provided a configuration in which a jet portion, which is a template, and a coloring means for coloring the gas body are provided, and predetermined characters and figures are displayed in the air by the gas body colored by the coloring means and jetted from the jet portion. To do.

Further, the coloring means is one in which the ejection hole is filled with a coloring body made of finely divided coloring powder, and the coloring body is discharged into the air together with a gas body ejected by an explosion, so that the characters and figures are drawn. Is displayed.

Further, the coloring means is configured to mix the explosive body with a colored body which is a volatile dye, for example, which produces colored smoke-like bodies due to explosion.

Further, in order to eject the gas body generated by the ignited explosive body from the ejection hole with a uniform pressure, a partition film is stretched at an intermediate portion between the explosive body and the ejection hole. Therefore, an air chamber is provided.

Further, the ejection holes are formed in a relationship of L ≧ 3d, where d is the diameter and L is the length orthogonal to the diameter direction.

Further, when a plurality of the aerial display devices are used to display continuous characters and figures in the air, the ejection holes formed so that the characters and figures are displayed on substantially the same plane. In a large number of aerial display devices, the diameter of each ejection hole is small, and in an aerial display device with a small number of ejection holes formed, the diameter of each ejection hole is large and the total number of ejection holes is large. The configuration is such that the area is constant in any aerial display device.

Further, the ejection holes are formed by punching holes having a predetermined diameter in the template at predetermined intervals on the contour lines of the characters and figures to be displayed, and the pipes having a predetermined length in the holes punched in the template. And the ejection portion is formed by fitting the template in which the pipe is implanted into a casing.

Further, the ejection holes are perforated with holes having a predetermined diameter at predetermined intervals on the outlines of the characters and figures to be displayed, and the ejection portion is perforated at the predetermined positions. In this configuration, the template is fitted to the housing and formed.

[0013]

[Operation] The operation of the present invention is as follows. In claim 1, the explosive body which is ignited and exploded generates a gas body, and the generated gas body is colored by the coloring means and ejected from the ejection hole. Since the ejection holes are formed at predetermined intervals on the contour lines of the predetermined characters and figures, the colored gas body ejected from the ejection holes is discharged along the contour lines of the characters and figures. Stay in the air,
Characters and figures are displayed in the air.

According to a second aspect of the present invention, the gas body generated by the explosion of the explosive powder, when ejected from the ejection hole into the air,
It is colored by crushing the fine powder coloring material filled in the ejection holes while crushing the pulverized coloring material and ejecting it.

In the third aspect, the gas body generated by the explosion of the explosive is colored by the smoke-like body generated by the explosion of the explosive and ejected from the ejection hole.

According to the present invention, the gas body generated by the explosion of the ignited explosive does not diffuse at a uniform pressure but diffuses at a non-uniform pressure at each part, so that the gas body is diffused. When the partition film forming this air chamber is broken by the pressure of the gas body, the pressure of the gas body is made uniform and the gas is ejected from each ejection hole.

In the fifth aspect, the diameter of the ejection hole is d,
It has been confirmed by experiments that characters and figures can be clearly displayed in the air by forming the relationship of L ≧ 3d, where L is the length orthogonal to the diameter direction.

According to the sixth aspect of the invention, since the total area of the ejection holes of the plurality of aerial display devices is the same in each aerial display device, a plurality of aerial display devices are arranged side by side and actuated simultaneously, so that consecutive characters in the air, When displaying a figure, since the ejection pressure of the colored gas ejected from each ejection hole becomes substantially constant in each ejection hole of each aerial display device,
The characters and figures displayed in the air are also formed on the same plane without unevenness.

According to the seventh and the eighth aspects, since the ejection portion is formed by fitting the template in which the ejection hole is formed in advance to the housing, the ejection portion can be easily formed.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a part of the aerial display device 1 according to the present invention in a cutaway manner, FIG. 2 is a partially enlarged view showing an enlarged portion of a circle i shown in FIG. 1, and FIG. 3 is a plan view of FIG. It is a figure. 4 is a view showing another embodiment of the template shown in the partially enlarged view of FIG. 2, and FIG. 5 is a perspective view showing a use state of the aerial display device 1.

In the figure, an aerial display device 1 uses a capsule 2 having an inverted conical shape similar to that of a well-known cracker as the casing, and a thick paper member as the explosive body is provided at the bottom of the capsule 2. A so-called medicine package 3 in which gunpowder is tightly wound is arranged. This medicine package 3 is housed in a back wind receiver 4 which is opened in the direction in which a gas body is ejected, and a trigger string 5 extending through the back wind receiver 4 to the outside of the capsule 2 is connected to the rear portion thereof. Has been done. Like a well-known cracker, the gunpowder of the medicine package 3 is ignited by pulling out the trigger cord 5, and
Is supposed to explode.

In front of the backwind receiver 4 for storing the medicine package 3,
A first partition film 6 is stretched at a predetermined distance from the medicine package 3, and a second partition film 7 is stretched at a position spaced from the first partition film 6 by a predetermined distance. As the members of the partition films 6 and 7, a so-called thin paper member or a thin film plastic member having no directivity against breakage is used.

By stretching the first partition film 6 and the second partition film 7, a first air chamber 8 and a second air chamber 9 are formed in the capsule 2. The first and second partition films 6, 7 and the first and second partition films
The air chambers 8 and 9 are for uniformizing the non-uniform pressure diffusion of the gas body generated by the explosion of the medicine package 3 as described above, whereby the gas ejected from each ejection hole is Since the body also ejects with a substantially uniform pressure, the characters and figures displayed in the air are also displayed at the display position without any unevenness in the front or rear. In this embodiment, two partition films and two air chambers are provided, but a single partition film and a single air chamber may be provided respectively.

From the second partition film 7 through the space 10, the template 11 serving as the ejection portion is provided with the stopper ring 1.
It is fitted and fixed to the capsule 2 by 5a and 15b. As shown in FIGS. 3 and 5, the template 11 has a heart-shaped graphic outline 13 in this embodiment.
Jet holes 11a, 11a to are formed at predetermined intervals, and a pipe 11b made of a heat resistant member such as ceramic is implanted in the punched hole as shown in FIG. ing. The pipe 11b is filled with the finely powdered pigment such as para red or indicopier as the colored powder 12.
As described above, when the gas body generated by the explosion of the medicine package 3 is ejected from the ejection hole 11a, the filled colored powder 12 is crushed and ejected together with the colored powder 12 so that the gas body Is colored.

As another embodiment for coloring the gas body, the explosive in the medicine package 3 generates a smoke-like body of a predetermined color due to heat at the time of explosion, for example, Rhodan, olamine, methylene blue, etc. A configuration in which a volatile dye is mixed may be used.

The length of the pipe 11b of the ejection hole 11a is L, and the diameter of the pipe 11b is d.
It has been confirmed by experiments that the ejected gas body clearly displays characters and figures in the air if there is a relationship of 3d. Further, instead of implanting the pipe 11b in the template 11, as another embodiment, as shown in FIG. 4, the pipe 11b is directly jetted to the template 11 'having a thickness corresponding to the length L of the pipe 11a. The hole 11a 'may be formed.

In the aerial display device 1 having the above-described structure, first, when the trigger cord 5 is pulled out, the medicine package 3
When the gunpowder inside is ignited, the medicine package 3 explodes. The gas body generated by this explosion enters the first air chamber 8 and destroys the first partition film 6 by the pressure. During this destruction, the pressure of the non-uniform explosion is equalized to some extent.

The gas body that has destroyed the first partition film 6 enters the second air chamber 9 and the second body is pressurized by the second air chamber 9.
The partition film 7 is destroyed. At the time of this destruction, the pressure of the non-uniform explosion is further equalized, and the gas body reaches the template 11 as the ejection part through the space 10 and the ejection holes 11a, 11a of the template 11, Eject from 11a.

The ejected gas body is composed of the ejection holes 11a,
While the colored powder 12 filled in 11a to 11a is pulverized, it is colored by the pulverized colored body 12 and is discharged into the air. In the above-described another embodiment in which the colored body is mixed with the medicine package 3 as the explosive body, the colored body is evaporated by the heat generated when the medicine package 3 is ignited and explodes, and the predetermined color emitted by the evaporation is emitted. The gas body is colored by the fine particles.

Since the ejection holes 11a and 11a to 11a are formed on the contour line of the heart-shaped figure at a predetermined interval as described above, the colored particles ejected from the ejection holes 11a and 11a to 11d are colored. The gas body is also discharged along the shape of the heart-shaped contour line, and as shown in FIG. 5, the colored gas body stays in a predetermined space where the pressure of the jet is attenuated, whereby the heart-shaped figure 14 Is displayed.

As described above, in this embodiment, a heart-shaped figure is displayed, but instead of the heart-shaped figure, the arrangement of the plurality of ejection holes 11a, 11a-on the outline showing a specific character. If it is formed in, the character can be displayed in the air.

Further, for example, "O", "me", "de", "to"
By arranging a plurality of aerial display devices capable of displaying the character "U" and operating them substantially at the same time, significant consecutive characters can be displayed in the air. In this case, the display position in the space of each character "O""Me""De""To""U", that is, as described above, the pressure of the gas body ejected from each ejection hole 11a, 11a ... The characters are displayed in the space position where the gas is attenuated and stays, but when the plurality of aerial display devices are operated almost simultaneously, if the space position of the gas body ejected in each display device is different, it is displayed. Unevenness occurs due to different spatial positions of the characters and the like.

Therefore, in manufacturing the aerial display device 1, in the aerial display device in which the number of the ejection holes 11a, 11a to be formed is large, the diameter of each ejection hole is small and the ejection holes 11a and 11a to be formed. In the aerial display device 1 having a small number of, the diameter of each ejection hole is increased so that the total area of the ejection holes is the same in any aerial display device. In this way, by making the total areas of the ejection holes equal, the spatial positions of the staying gas bodies become equal due to the attenuation of the pressure of the ejected gas in the air, thereby displaying a plurality of characters and figures. Will be displayed at approximately the same spatial position.

The manufacture of the template 11 is as follows.
A hole having a predetermined diameter is drilled at predetermined intervals on the contours of the characters and figures to be displayed, and a pipe having a predetermined diameter is planted at this drilling position. Such a template 11 is fitted into the capsule 2 as a housing and fixed by the stopper rings 15a, 15a.

As another manufacturing method, a template having a thickness corresponding to the length of the pipe is directly punched with holes having a predetermined diameter at predetermined intervals on the contour line of a predetermined character or figure to be displayed,
This template is fitted into the capsule 2 as a housing and fixed by the stopper rings 15a, 15a.

The present invention is not limited to the above-mentioned embodiment, and for example, the shape of the capsule 2 as the housing is not limited to the inverted conical shape and may be formed in a polygonal pyramid.

[0037]

As described above, according to the present invention, the gas body generated by the explosion of the cracker-like explosive body is colored by the coloring means, and the colored gas body is drawn on the contour lines of predetermined characters and figures. With the structure in which the air is ejected from the ejection holes formed at predetermined intervals, it is possible to realize an aerial display device that can display some messages such as characters and figures in the air and can be easily used like a cracker.

Further, the partition membrane is stretched in the intermediate portion between the explosive body and the ejection hole to provide the air chamber, so that the pressure of the non-uniform gas body generated by the ignited explosive body is made uniform. Since it can be ejected from the ejection hole, the aerial display device can display the characters and figures displayed by the ejection on the substantially same plane without disorder.

Further, in the aerial display device having a large number of ejection holes formed, the diameter of each ejection hole is small, and in the aerial display device having a small number of ejection holes formed, the diameter of each ejection hole. Are formed to be large so that the total area of the ejection holes of each aerial display device is constant in any aerial display device. When displaying a figure, it is possible to use an aerial display device in which any displayed characters and figures are displayed on substantially the same plane.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of an aerial display device 1 according to the present invention.

FIG. 2 is a partially enlarged view showing an enlarged part of a circle i shown in FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is a view showing another embodiment of the template shown in the partially enlarged view of FIG.

FIG. 5 is a perspective view showing a usage state of the aerial display device 1 according to the present invention.

[Explanation of symbols]

 1 ・ ・ Aerial display device 2 ・ ・ Capsule 3 ・ ・ Medical bag 5 ・ ・ Trigger string 6 ・ ・ First partition film 7 ・ ・ Second partition film 8 ・ ・ First air chamber 9 ・ ・ Second Air chamber 11 · Template 12 · Colored powder 14 · Heart-shaped figure

Claims (8)

[Claims] 1. An explosive body that is ignited to generate a gas body by pulling out a connected trigger string in a housing having a predetermined shape, and is provided at predetermined intervals on a contour line showing predetermined characters and figures. A plurality of ejection holes for ejecting the generated gas body, and coloring means for coloring the gas body, and the gas colored by the coloring means and ejected from the ejection portion An aerial display device characterized by displaying predetermined characters and figures in the air by the body. 2. The coloring means is one in which the ejection hole is filled with a coloring material of fine powder, and the coloring material is discharged into the air together with a gas body ejected by an explosion,
The aerial display device according to claim 1, wherein the aerial display device displays a figure. 3. The aerial display according to claim 1, wherein the coloring means mixes the explosive body with a colored body that produces a smoke-like body colored by an explosion of the explosive body. apparatus. 4. A partition film is stretched at an intermediate portion between the explosive body and the ejection hole in order to eject the gas body generated by the ignited explosive body from the ejection hole with a uniform pressure. 4. The aerial display device according to claim 1, wherein the air chamber is provided according to claim 1. 5. The ejection hole is formed in a relationship of L ≧ 3d, where d is the diameter and L is a length orthogonal to the diameter direction. Item 3
Alternatively, the aerial display device according to claim 4. 6. The method for manufacturing an aerial display device according to claim 1, wherein when a plurality of the aerial display devices are used to display a continuous character or figure in the air, the character, In an aerial display device in which a large number of ejection holes are formed so that graphics are displayed on substantially the same plane, the diameter of each ejection hole is small, and in an aerial display device in which a small number of ejection holes are formed, A method for manufacturing an aerial display device, characterized in that the diameter of each of the ejection holes is made large so that the total area of the ejection holes is constant in any aerial display device. 7. The method for manufacturing an aerial display device according to claim 1, wherein the ejection holes have holes of a predetermined diameter formed on the template at predetermined intervals on the contours of the characters and figures to be displayed. It is formed by piercing and then piercing a hole of the pierced template with a pipe having a predetermined length, and the ejection portion is formed by fitting the template with the pipe laid in a casing. And a method for manufacturing an aerial display device. 8. The method for manufacturing an aerial display device according to claim 1, wherein the ejection holes have holes each having a predetermined diameter and a predetermined thickness at predetermined intervals on the contour line of a character or graphic to be displayed. A method for manufacturing an aerial display device, characterized in that a die plate having a hole is formed, and the ejection portion is formed by fitting the die plate punched at the predetermined position into a housing.