JPH063095A - Toy firework - Google Patents

Abstract

PURPOSE:To provide a novel structure of a toy firework able to fly, what is called a rocket firework, wherein when it flies, a sound of flute is generated, following which a sound of explosion is generated. CONSTITUTION:Powders 2, 3 are properly loaded in a cylindrical casing 1, one of the ends of which is closed. When the powder 3 burns, the sound of a flute is generated while a firework is flying, following which a sound of explosion is generated, wherein a partition lip 15 extending toward the center of the casing 1 is provided along the inner surface of the casing 1. The explosion sound powder 2, wherein it is required that there is a sufficient gap around the powder and the powder itself is in a relatively rough particle-like state, is loaded in an explosion sound powder chamber 12 and thereafter the powder loaded is maintained in such a state that it is separated by the lip 15 from the pressure of the powder 3 which is loaded in the following step, and hence a sound of explosion can be obtained without fail.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to flying toy fireworks called rocket fireworks, and more particularly to a novel structure for producing whistling sounds and subsequent popping sounds during flight. .

[0002]

Background of the Invention Fireworks for toys, which rise while making a whistle and then make a pop, have been well received as intriguing. On the other hand, however, since explosives are used, the filling of dangerous explosives or the like is not legally permitted for the method of generating a plosive sound. For this reason, assuming that the explosive of the same component as the explosive that makes a whistling sound and burns (this explosive is relatively safe) is used, a plosive sound is generated by devising the particle size and filling state. I am trying to do it. Specifically, in order to make explosives burn quickly to the extent that they make a burst noise, explosives with a relatively large particle size are provided on the closed side of the casing in a loosely packed state (to reduce the apparent specific gravity). The basic technical idea is disclosed in Jikkou Sho-45-91198, "Toy Fireworks with Explosive Sound".

By the way, as disclosed in this prior art, when the filling state of the explosive near the closed portion of the casing is greatly influenced by the filling of the whistle sound explosive to be filled thereafter, That is, when pressure is applied, there is a possibility that sufficient voids required for rapid combustion cannot be obtained, and eventually no burst noise is generated. Therefore, even in the above-mentioned prior art, a step portion is provided as a pressure stop for whistle sounding powder to be filled later to address the above-mentioned problem. However, when it is simply a stepped portion, the diameter of the portion filled with the explosive sounding explosive becomes small, and as a result, the amount cannot be sufficiently secured, and in some cases, the plosive sound may not be surely generated.

[0004]

[Technical Items Attempted to Develop] The present invention has been made from such a background, and the present inventor has realized a plosive sounding explosive powder by an effective partitioning action while sufficiently securing a filling space for the plosive sounding explosive powder. This is an attempt to develop a novel fireworks for a toy that keeps the filled state of No. 1 in a preferable state and surely makes a popping sound.

[0005]

[Constitution of the invention]

[Means for Achieving the Object] That is, in the fireworks for a toy of the present invention, an appropriate explosive is loaded in a cylindrical casing having one end closed, and the whistle is emitted while flying by burning the explosive, and In order to achieve the above object, the present invention is characterized in that a partition lip protruding toward the center is provided on the inner peripheral surface of the casing. It is a thing.

[0006]

According to the present invention, since the partition lip is provided on the inner peripheral surface of the casing so as to project toward the center, when the whistle sounding explosive is charged after the burst sounding explosive is charged. The partition lip reduces the pressure and fills the explosive powder without changing the filling state. As a result, the explosive sounding explosive has a sufficient space around it so that a fast-burning state can be obtained, and a reliable explosive sound is generated.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to illustrated embodiments. Reference numeral F represents a fireworks for a toy including one embodiment of the present invention, which is made of, for example, plastic, paperboard, metal, etc. The whistle sound powder 3 is filled with the whistle sound, and its basic configuration follows the conventionally known method. A fuse 4 is drawn out from the whistle sounding powder 3 toward the open end of the casing 1, and a bamboo higo 5 is provided in the casing 1 as an example to ensure stability during flight. Of course, instead of this bamboo higo 5, a wing plate 6 imitating a rocket as shown in FIG.
May be provided.

The present invention is characterized by the structure of the portion of the casing 1 that separates the explosive sounding powder 2 and the whistle sounding powder 3 from each other, which will be described below. That is, the casing 1 is closed at one end as the closing portion 11.
By the way, when this firework F for toys is used, the blocking part 1
1 is upward and flies in the sky, but when the casing 1 is filled with the explosive sounding explosive 2 and the whistle sounding explosive 3, the normally closed portion 11 is directed downward and the work is performed. Done. Then, the closed portion 11 is provided in the casing 1.
A plosive sounding explosive chamber 12 and a whistle sounding explosive chamber 13 are provided to the side, and a step portion 14 is provided at the boundary between them in the embodiments shown in FIGS. With such a configuration, the diameter D ₁ of the explosive explosive chamber 12 is somewhat smaller than the diameter D ₂ of the whistle explosive chamber 13.

The step portion 1 is a characteristic feature of the present invention.
A partition lip 15 is provided such that the inner peripheral end of the casing 4 faces the center of the casing 1. This most basic Figure 1
In the embodiment shown in FIG. 3, the partition lip 15 has an inner flange-like annular shape. The overhanging dimension of the partition lip 15 is determined as a specific dimension, shape, etc. according to the manufacturing method, but in the embodiment shown in FIGS. The size is set so that the medium size can be pulled out sufficiently.

The casing 1 having such a structure is filled with the explosive sounding explosive 2 and the whistle sounding explosive 3 with the closing portion 11 facing downward. 2 is filled into the explosive sounding powder chamber 12 with, for example, almost no pressure, and then the whistle sounding powder 3 is filled into the whistle sounding powder chamber 13. Even when a certain pressure is applied to the whistle sounding explosive, the pressure is considerably reduced by the partition lip 15, and the explosive sounding explosive 2 is filled with, for example, a coarse particle state or a sufficient gap around it. It should be in a state that does not almost damage the state.

The basic embodiment of the present invention has the structure as described above, but various embodiments can be adopted under the same technical concept. First, in the embodiment shown in FIG. 5, the partition lip 15 is shaped so as to almost face the opening side when the casing 1 is molded, so that the medium size can be easily extracted. The introduction recess 16 is formed on the outer peripheral edge of the partition lip 15. In this case, when the explosive explosive powder 2 is filled into the explosive explosive powder chamber 12 in a substantially non-pressurized state and then the whistle explosive powder 3 is continuously filled, as shown in FIG. When the whistle sounding powder 3 that has been filled in a part of the casing 3, that is, near the inner peripheral surface of the casing 1, is blocked by the introduction concave portion 16, its pressure pushes the guide inclined surface 17 to form a partition lip 15 Is bent inward so that a partitioning action between the explosive sounding explosive powder 2 and the whistle sounding explosive powder 3 is achieved. As can be understood from this, the meaning that the partition lip 15 is provided so as to project toward the center of the casing in the claims means that the partition lip 15 may not be formed in advance toward the center. As a result, such an action may be performed at the time of filling.

In the embodiment shown in FIG. 6 (a), the guide inclined surface 17 is formed not on the partition lip 15 side but on the inner peripheral surface side of the casing 1. Further, such a partition lip 15 does not necessarily have to have a single layer in sectional shape, and may be of a type having two layers as shown in FIG. 6B.

Further, in order to further promote the action of the partition lip 15 bending inward when the whistle sounding explosive 3 is filled, as shown in FIG. 6 (c), the base portion of the partition lip 15 on the explosive sounding explosive chamber 12 side is shown. A dent-shaped bending guide portion 18 may be provided nearby.

Further, in order to further smooth the fall-down action of the partition lip 15, as shown in FIG. 7 (a), the partition lip 15 does not have to be an inner flange-shaped continuous annular shape, but instead of several It is also possible to engrave the slits 19 and form a shape that is divided.

Further progressing this technical idea, FIG. 7 (b)
The partition lip pieces 15A, which are the respective pieces of the partition lip 15, may have a flat surface configuration instead of a curved surface configuration as shown in FIG.

In the embodiment shown in FIG. 7 (b) by further developing such a technical idea, the partition lip 15 is shaped not only toward the central portion side of the casing 1 but also toward the opposite side. In the embodiment shown in FIG. 8 (a), a pair of the partition lips 15 are provided opposite to each other. See also FIG.
In the embodiment shown in (b), only one partition lip 15 has a disc shape. By the way, such a partition lip 1
In the type in which 5 has a tendency to fall inward, as shown in FIG. 8C, for example, the filling nozzle 20 of the whistle sounding explosive 3 is sufficiently inserted into the casing 1 at the time of filling the explosive, The filling may be performed by moving the tip end to assist this lodging.

In all of the above-mentioned embodiments, the partition lip 15 is provided integrally with the casing 1, but the casing 1 itself may have a two-layer structure in order to change the partition lip 15 depending on the form of the partition lip 15. That is, as shown in FIG. 9, the casing 1 is composed of the outer casing 1A and the inner casing 1B. The outer casing 1A, which has a certain rigidity by injection molding of synthetic resin, has a relatively simple shape, and the inner casing 15 including the partition lip 15 is used.
B is configured so that the partition lip 15 is sufficiently projected to the inside by, for example, blow molding.

【The invention's effect】

The present invention has the structure as described above, and has a sufficient gap around the explosive, and the explosive itself is required to be in a relatively coarse particle state. After being filled in the explosive sounding explosive chamber 12, it is possible to fill the whistle sounding explosive 3 that is filled in the next step by the partition lip 15 in a state where the pressure of the whistle explosive 3 is cut off. Can be expected to occur.

[Brief description of drawings]

FIG. 1 is a perspective view showing a firework for a toy of the present invention.

FIG. 2 is a vertical sectional side view of the same.

FIG. 3 is a vertical cross-sectional side view showing the interior of the same casing in an enlarged manner.

FIG. 4 is a vertical sectional side view showing another embodiment of the fireworks for a toy of the present invention.

FIG. 5 is a vertical cross-sectional view showing another embodiment in which the shape of the partition lip is different before and after filling with explosive.

FIG. 6 is a vertical sectional view showing still another various embodiments of the same.

FIG. 7 is a perspective view showing still another two embodiments.

FIG. 8 is a perspective view showing still another two kinds of embodiments and a vertical sectional view showing how the filling nozzle assists the fall of the partition lip.

FIG. 9 is a vertical sectional view showing an embodiment in which the casing itself has a two-layer structure before and after joining.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 casing 1A outer casing 1B inner casing 2 plosive sound powder 3 whistle sound explosive 4 squib 5 bamboo higo 6 vane 11 blocking part 12 plosive sound explosive chamber 13 whistle sound explosive chamber 14 step 15 partition lip 15A partition lip piece 16 introduction recess 17 Guide inclined surface 18 Bending guide portion 19 Slit 20 Filling nozzle D ₁ Plosive sound Diameter of explosive chamber D ₂ Whistle sound Diameter of explosive chamber F Fireworks for toys

Claims (1)

[Claims] Claims: 1. A cylindrical casing, one end of which is closed, is filled with an appropriate explosive, and when the explosive burns, a whistle sound is emitted while flying, and then a burst noise is generated. The fireworks for a toy, wherein a partition lip protruding toward the center is provided on the inner peripheral surface of the casing.