JPH10274499A - Firework holder and method for preventing retro-firing of fireworks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireworks holder in which the anxiety of burn is eliminated even upon occurrence of retro-firing by closing the direction opposite to the firing port of fireworks or sparks, i.e., the opening on this side, after firing. SOLUTION: The fireworks holder H5 comprises a clamper 1e and a gripper 2. The clamper 1e comprises two clamps 11, 13, and a C-shaped ring spring 14. The clamp 13 is provided, on the inner surface at the forward end 131 thereof, with a contact face 134 having saw-tooth cross-section and, on one outer side face thereof, with a substantially square holding piece 15. The clamp 13 is provided, on the rear side 132 thereof, with a plate 17 indicating a character. Similarly, the clamp 11 is provided, on the inner surface at the forward end 111 thereof, with a contact face 144 having saw-tooth cross-section and, on one outer side face thereof, with a substantially square holding piece 16. A nonslip part 18 having irregular surface is provided on the opposite outer face sides at the rear parts 132, 312 of the clamps 13, 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireworks holder and a method for preventing fireworks from being injected backward. More specifically,
When playing with hand-held fireworks, it prevents so-called reverse injection, in which sparks and sparks are sprayed at hand, and even if fired in the reverse, fireworks holders and reverse fireworks that prevent sparks and sparks from reaching hand It concerns prevention methods.

[0002]

2. Description of the Related Art As a type of fireworks, there is a so-called hand-held fireworks which is ignited and played while being held in a hand. Most of the handheld fireworks are composed of a tubular body such as a paper tube, and an explosive charged at a predetermined position in the tubular body. Such handheld fireworks are devised so as to be filled with gypsum or the like near the opening opposite to the injection port so as to prevent burns, in order to prevent sparks and sparks from being injected back after ignition.

[0003]

However, in the above-mentioned fireworks, the gypsum or the like filled in the cylindrical body is caused by the deterioration of the material, the inadequate manufacturing process, transportation or inventory management, and the like. Some of them were damaged or shifted, making them easier to move. As a result, when playing with handheld fireworks,
The so-called reverse injection, in which sparks or sparks are injected toward the hand holding the handle, is likely to occur, and has a problem of causing burns.

[0004] The present invention solves the above-mentioned problems, and prevents reverse injection of hand-held fireworks by blocking the opening of the hand-held fireworks in the opposite direction to the spark or spark powder injection port, that is, by closing the opening on the hand side. It is an object of the present invention to provide a fireworks holder and a method for preventing fireworks from being back-fired so that sparks and sparks do not reach the hand even when the water is back-fired.

[0005]

Means of the present invention taken to solve the above problems are as follows. According to the first aspect of the present invention, there is provided a fireworks holder for preventing backfire of handheld fireworks, which substantially closes an opening which can be a backfire port of a cylinder filled with explosive of handheld fireworks. A firework holder comprising: a closing body; and a grip having a required length provided on the closing body.

A second aspect of the present invention is the fireworks holder according to the first aspect, wherein the closing body is an insert that can be inserted into the opening.

A third aspect of the present invention is the fireworks holder according to the first aspect, wherein the closing body is a cover capable of covering the opening.

According to a fourth aspect of the present invention, there is provided a fireworks holder for preventing backfire of handheld fireworks, the firework holder being provided near an opening which can be a backfire port of a cylinder filled with explosives of handheld fireworks. It is characterized by comprising a holding device that can hold the outer surface or the inner surface and the outer surface of the peripheral wall and substantially close the opening, and a gripping body having a required length provided in the holding device. It is a fireworks holder.

According to a fifth aspect of the present invention, there is provided a fireworks holder for preventing backfire of handheld fireworks, the firework holder being provided near an opening which may be a backfire port of a cylinder filled with explosives of handheld fireworks. Nipping the outer surface of the peripheral wall, a holding tool having a closing piece capable of substantially closing the opening when holding the cylindrical body, a gripping body having a required length provided in the holding tool, It is a fireworks holding tool characterized by having.

According to a sixth aspect of the present invention, there is provided a fireworks holder for preventing backfire of handheld fireworks, the firework holder being provided near an opening which can be a backfire port of a cylinder filled with explosives of handheld fireworks. A gripper that clamps the outer surface of the peripheral wall and is capable of substantially closing the opening when the cylinder is clamped, and a gripper having a required length provided in the gripper. And a holding piece for holding the sandwiched cylindrical body from both sides is provided on both sides of the holding tool.

A seventh aspect of the present invention is characterized in that display means for displaying a designed character is attached to the first, second, third, fourth, fifth or sixth aspect. It is a fireworks holder according to the invention.

According to an eighth aspect of the present invention, there is provided a method for preventing back-fire of hand-held fireworks, wherein an opening which can be a back-fire port of a cylinder filled with explosive of hand-held fireworks is provided with a firework holding. A fireworks reverse injection prevention method, characterized by closing with an insert or a cover provided in a tool.

According to a ninth aspect of the present invention, there is provided a method for preventing backfire of handheld fireworks, wherein an outer peripheral surface of a peripheral wall on an opening side which can be a backfire port of a cylinder filled with explosive of handheld fireworks. Characterized in that the opening is closed by sandwiching the opening with a holding tool provided on the firework holder.

According to a tenth aspect of the present invention, there is provided a method for preventing backfire of handheld fireworks, wherein an outer peripheral surface of a peripheral wall on an opening side which can be a backfire port of a cylinder filled with explosive of handheld fireworks. Characterized in that it is sandwiched by a holding device provided on the firework holder to close the opening, and is held from both sides by holding pieces provided on both sides of the holding device. is there.

The closing body to be inserted into the opening and the cover covering the opening are preferably formed of an elastic body such as rubber or plastic so as to be easily inserted or covered.
It is not limited to an elastic body. As the holding tool that can hold the peripheral wall near the opening, for example, a tool including two holding bodies and a torsion coil spring that provides the holding body with a function as a holding tool is used. Is not limited to When the inner surface and the outer surface of the peripheral wall near the opening of the cylindrical body are held by the holding device, one of the members constituting the holding device is inserted into the opening, so that the thickness of the member is equal to the inner diameter of the opening. Preferably they are approximately the same or slightly smaller. Thereby, the gap between the inserted member and the inner surface of the peripheral wall near the opening is reduced, and the opening is closed. The closing piece provided on the holding tool may be provided on each of the members constituting the holding tool, or may be provided only on one of the holding bodies. The type of the character is not particularly limited, and may be a cartoon or animated character, as well as a design of an animal or a fictional creature.

(Operation) In the fireworks holding device according to the present invention, an opening that can be a reverse injection port of a cylindrical body when playing with fireworks is closed by a closing body or a holding device constituting the fireworks holding device. Can be. In addition, the gripping body provided on the closing body or the holding tool has a required length. Therefore, reverse injection after ignition can be prevented, and even if some sparks or sparks are ejected from the cylinder to the outside due to the reverse injection, a considerable distance will be maintained between the hands holding the grip from the cylinder. During that time, sparks and sparks fall,
No burns.

In the case where the holding piece is provided with a closing piece,
Since the opening can be closed by this, for example, when the effect of preventing reverse injection by holding with the holding device is not sufficient,
In the event of reverse injection, it is possible to more reliably prevent sparks and sparks from flying close to the hand.

In the case where the holding pieces are provided on both sides of the holding tool, the opening which can be the reverse injection port of the cylindrical body is shielded from the outside by the holding pieces, and at the same time, the handheld fireworks move after ignition and the opening is formed. It is fixed at a predetermined position without shifting. Therefore, it is difficult for the tubular body to fall off from the holding device, and in the event of reverse injection after ignition, it is possible to reliably prevent sparks and sparks from scattering to the hand.

The one provided with the display means for displaying the designed character has a great effect of appealing to a child who seems to occupy most of the players who play with hand-held fireworks, and can be expected to be able to sell advantageously.

The present invention will be described in further detail based on the embodiments shown in the drawings. FIG. 1 is a perspective view showing a first embodiment of a fireworks holder according to the present invention. The symbol H1 indicates a fireworks holder. The firework holder H1 includes a holding device 1a,
It consists of a gripping body 2 provided on the holding tool 1a. The holding member 1a includes two holding members 11, 13 and a torsion coil spring 12
And The holding bodies 11 and 13 are in contact with each other. The torsion coil spring 12 is interposed between the holding members 11 and 13, whereby a force is applied to the two holding members 11 and 13 so as to strongly press the distal ends thereof to each other.

The holding member 1a is provided at the rear portion 11 of the holding members 11, 13.
The front portions 111 and 131 can be expanded by pressing the inner portions 2 and 132 toward each other and bringing them closer to each other. The grip body 2 is a small-diameter rod made of plastic or wood. The length is usually about 15 to 30 cm. Clamping body 1
The tip portions 111, 131 of 1, 13 are adjusted in thickness according to the inner diameter of the cylindrical body 3, so that when inserted, the gap with the inner peripheral wall is reduced so that sparks and the like cannot pass. I have.

(Operation) FIG. 2 is an explanatory view showing a use state of the fireworks holder shown in FIG. The first method of use will be described with reference to FIG. First, the rear part 11 of the holding bodies 11 and 13
2 and 132 are pushed inward (sides in contact) by hand,
The front parts 111 and 131 of the first and the thirteenth are opened. The front part 111 of one of the holding bodies 11 is inserted into an opening which can be a reverse injection port of the cylindrical body 3 filled with the explosive, and the rear parts 112, 132
Release the hand pressure. By this insertion, the holding body 1
The front part 111 of the first plugs the opening of the firework cylinder 3. The state is caused by the action of the torsion coil spring 12 and
1 and 13 are maintained by strongly clamping the wall at the end of the opening from inside and outside. Therefore, the opening is closed,
Reverse injection after ignition can be prevented, and even in the event of reverse injection, sparks and sparks can be prevented from scattering to the hand, so that there is no burn.

(Operation) FIG. 3 is an explanatory view showing another use state of the fireworks holder shown in FIG. The second usage will be described with reference to FIG. The fireworks holder shown in FIG.
The firework holder is slightly larger than the firework holder shown in FIG. 2, and a closing surface 4 that closes the opening of the cylindrical body 3 is provided on the tip side of the contact portion between the intermediate portions of the holding bodies 11 and 13. .

First, the rear portions 112, 1 of the holding bodies 11, 13
32 by hand inwardly (in contact with each other),
3 are opened. Open holding body 11, 1
3, the opening of the cylindrical body 3 is inserted, and the rear portions 112 and 132 are inserted.
Release the manual pressure on. The insertion is performed until the edge surfaces of the openings come into contact with the closing surfaces 4 of the holding bodies 11 and 13. Therefore, the opening that can be the reverse injection port is the closing surface 4.
, It is possible to prevent reverse injection after ignition, and even in the event of reverse injection, it is possible to prevent sparks and sparks from scattering to the hand, so that there is no burn.

FIG. 4 is a perspective view showing a second embodiment of the fireworks holder according to the present invention. The symbol H2 indicates a fireworks holder. The firework holder H2 includes a plug 1b as an insert and a rod-shaped grip 2 provided on the plug 1b. The plug 1b is a cone formed of heat-resistant rubber. The outer diameter of the lower part is formed so as to be substantially the same as or slightly larger than the inner diameter of the cylindrical body.

(Operation) The operation of the fireworks holder H2 will be described with reference to FIG. The plug 1b is inserted into an opening that can be a reverse injection port of the fireworks cylinder 3. Since the outer surface of the plug 1b elastically pushes the inner surface of the cylinder outward, the plug 1b becomes difficult to move and is fixed. Therefore, the opening is closed by the plug 1b,
Reverse injection after ignition can be prevented, and even in the event of reverse injection, sparks and sparks can be prevented from scattering to the hand, so that there is no burn.

FIG. 5 is a perspective view showing a third embodiment of a fireworks holder according to the present invention. Reference sign H3 indicates a fireworks holder. The firework holder H3 includes a cap body 1c and a rod-shaped grip 2 provided on the cap body 1c. The cap body 1c is a bottomed cylindrical body formed of heat-resistant rubber. The inner diameter is formed so as to be substantially the same as or slightly smaller than the outer diameter of the cylindrical body.

(Operation) The operation of the firework holder H3 will be described with reference to FIG. The cap body 1c is covered so as to cover an opening which can be a reverse injection port of the cylindrical body. Cap body 1c
The inner surface of the cylinder elastically pushes the outer surface of the cylindrical body inward, and the fireworks are fixed. Therefore, the opening of the cylindrical body 3 is closed by the cap body 1c, so that even if reverse injection is performed after ignition, scattering of sparks or sparks can be prevented.

FIG. 6 is an explanatory view showing a fourth embodiment of a fireworks holder according to the present invention. Reference numeral H4 indicates a firework holder. The fireworks holder H4 is a holding device 1d and a holding device 1d.
And a rod-shaped grip 2 provided on the main body. The grip body 2 is integrally formed with one of the holding bodies 13 constituting the holding tool 1d. The holding device 1d has substantially the same structure as the holding device 1a shown in the firework holding device H1 except for the following differences.

The first difference is that, in the fireworks holder H1, both ends of the torsion coil spring 12 appear to the outside and are directed toward the tips 111 and 131. It is embedded inside and faces the rear part 112. The function of the torsion coil spring 12 is the same in that both of the torsion coil springs 12 are urged in the direction in which the tip portions 111 and 131 are pressed. The second difference is that, in the present embodiment, the inner surfaces of the tips 111 and 131 of the holding bodies 11 and 13 are formed in a saw-toothed cross section, so that the cylindrical body 3 is easily held. With this configuration, the outer surface of the cylindrical body 3 on the side where the tip portions 111 and 131 can be the reverse injection ports can be tightly held. A third difference is that closing pieces 113 and 133 are provided on the base side of the front portions 111 and 131 so as to protrude inward. With this configuration, the closing pieces 113 and 133 can close the opening of the firework cylinder 3. Note that the overhanging pieces 113 and 133 are provided at different positions so as not to hinder the opening and closing of the holding bodies 11 and 13.

(Operation) Referring to FIG. 6, the fireworks holder H4
The operation of will be described. First, the rear part 11 of the holding bodies 11 and 13
Hold grip 2 and grip 2 and push inward. Tip 111, 1
31 is opened to sandwich the outer surface of the peripheral wall near the opening which can be the reverse injection port of the cylinder 3 filled with the explosive. At this time,
The edge of the opening of the cylindrical body 3 is in contact with the closing piece 133 of the holding body 13. In this way, the opening is closed by the closing piece 11.
3 and 133 are closed. This state is maintained by the torsion coil springs 12 that the holding bodies 11, 13 strongly hold the outer surface of the peripheral wall near the opening. Therefore, the opening is closed, and the reverse injection after ignition can be prevented. Even if the reverse injection is performed, the spark or sparks can be prevented from scattering to the hand, so that there is no burn.

FIG. 7 is a front view of a fifth embodiment of a fireworks holder according to the present invention, in which a portion of a fireworks cylinder is cut away. FIG. 8 is a bottom view of the firework holder shown in FIG. FIG. 9 is a front view of a main part of the holding body of the fireworks holding device shown in FIG. 7 on the side having the grip. FIG. 10 is a view as seen from the arrow a in FIG.

Reference numeral H5 indicates a fireworks holder. The firework holder H5 includes a holding tool 1e and a plate-like grip 2 provided on the holding tool 1e. The holding tool 1e is composed of two holding bodies 1
1 and 13 and a C-shaped ring spring 14. Grip 2
Is integrally formed with one of the holding members 13 constituting the holding tool 1e.

A contact surface 134 having a sawtooth cross section is provided on the inner surface of the tip 131 of the holding body 13, and a substantially square holding piece 15 is provided on one of the outer surfaces. Further, a display plate 17 displaying a character (a panda in the present embodiment) is provided on the rear portion 132 side of the holding body 13. Also,
A contact surface 114 having a sawtooth cross section is also provided on the inner surface of the tip portion 111 of the holding body 11, and a substantially square holding piece 16 is provided on the outer surface.
Is provided. This outer surface is the holding piece 1 of the holding body 13.
5 is a surface opposite to the surface on which 5 is provided. In addition, on both outer surface sides of the rear part 132 of the holding body 13 and the rear part 112 of the holding body 11, non-slip portions 18 formed of uneven surfaces are provided.

The holding members 11 and 13 are in contact with each other. The holding bodies 11 and 13 are urged by a C-shaped ring spring 14 in a direction in which the front ends are pressed. Holding body 11,
Reference numeral 13 denotes a rotating fulcrum 19 in which the contact portions that face each other and bulge out are provided, and the front portions 111 and 131 can be opened and closed.
Then, the fireworks cylinder 3 sandwiched between the contact surfaces 114 and 134 exerts a force for strongly holding it. It is to be noted that the holding bodies 11 and 13 may be provided with a concave portion or a through hole in order to save material and reduce the weight.

(Operation) The operation of the firework holder H5 will be described with reference to FIGS. First, while putting a finger on the non-slip part 18 provided on the rear part 112, 132 of the holding bodies 11, 13, the tip parts 111, 131 are opened by pressing inward.
An opening that can be a reverse injection port of the fireworks cylinder 3 is inserted between the opened holding bodies 11 and 13, and the manual pressing on the rear parts 112 and 132 is released. At this time, the opening of the cylindrical body 3 is crushed by being sandwiched by the contact surfaces 114 and 134 of the holding bodies 11 and 13 together with the peripheral wall.

As described above, the opening that can serve as the injection port of the fireworks cylinder 3 is crushed, and the holding members 11, 1
Since the holding pieces 15 and 16 are provided on the outer surfaces opposite to each other, the holding inner side is shielded from the outside, so that even if reverse injection is performed, it is ensured that sparks and sparks are scattered at hand. So that no burns will occur.

The inner surface of the front end portion 111 of the holding body 11 and the inner surface of the front end portion 131 of the holding body 13 have contact surfaces 114 and 134 having a sawtooth cross section, respectively. Holding pieces 15 and 16 are provided on the outer side surface. Therefore, the opening side of the cylinder 3 inserted between the holding bodies 11 and 13, which can be the reverse injection port, has the holding pieces 15 and 16.
, It is securely fixed at a predetermined position without moving or shifting. Therefore, the hand-held fireworks do not move after ignition, and can be used safely.

Further, the rear portion 112 of the holding body 11 and the holding body 1
Since the non-slip portions 18 are provided on both outer surfaces of the rear portion 132 of the fireworks 3, the holding portion 11, 13 is inserted between the holding portions 11, 13 in order to insert an opening that can serve as a reverse injection port of the firework cylinder 3. Body 1
When the rear portions 112 and 132 of the first and the thirteenth members 13 are pressed inward by being sandwiched between the fingers, the fingertips are less likely to slip, and the above operation can be facilitated.

The terms and expressions used in the present specification are merely illustrative and not restrictive, and terms and equivalents to the features described in this specification and some of them may be used. There is no intention to exclude expression. It goes without saying that various modifications are possible within the scope of the technical idea of the present invention.

[0041]

The present invention has the above configuration and has the following effects. (A) The fireworks holding device according to the present invention can close an opening that can be a reverse injection port of a tubular body when playing with fireworks by the closing body or the holding device that constitutes the fireworks holding device. In addition, the gripping body provided on the closing body or the holding tool has a required length. Therefore, reverse injection after ignition can be prevented, and even if some sparks or sparks are ejected from the cylinder to the outside due to the reverse injection, a considerable distance will be maintained between the hands holding the grip from the cylinder. During that time, sparks and sparks fall and do not burn.

(B) In the case where the closing piece is provided in the holding device, the opening can be closed by this, so that if the effect of preventing reverse injection by holding with the holding device is not sufficient, In the case of spraying, it is possible to more reliably prevent sparks and sparks from scattering to the hand.

(C) In the case where the holding pieces are provided on both sides of the holding tool, the holding piece shields the opening which can be the reverse injection port of the cylindrical body from the outside, and at the same time, the handheld fireworks move after ignition. The opening is fixed at a predetermined position without shifting. Therefore, the cylinder is unlikely to fall off from the holding device, and even if the fuel is reversely injected after ignition, scattering of sparks or sparks can be reliably prevented, so that no burn is caused.

(D) The one provided with the display means for displaying the designed character has a large appealing effect on a child who seems to occupy most of the players playing with hand-held fireworks, and has an effect of being able to sell advantageously. Can be expected.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a firework holder according to the present invention.

FIG. 2 is an explanatory view showing a use state of the firework holder shown in FIG. 1;

FIG. 3 is an explanatory view showing another use state of the fireworks holding device shown in FIG. 1;

FIG. 4 is a perspective view showing a second embodiment of a fireworks holder according to the present invention.

FIG. 5 is a perspective view showing a third embodiment of a fireworks holder according to the present invention.

FIG. 6 is an explanatory diagram of a state showing a fourth embodiment of a fireworks holder according to the present invention.

FIG. 7 is a front view of a fifth embodiment of a fireworks holder according to the present invention, showing a state in which a firework cylinder is sandwiched and partially cut away.

FIG. 8 is a bottom view of the firework holder shown in FIG. 7;

9 is an essential part front view of the holding body of the fireworks holding device shown in FIG. 7 on the side having the gripper.

FIG. 10 is a view as seen from the arrow a in FIG. 9;

[Explanation of symbols]

 H1, H2, H3, H4, H5 Fireworks holders 1a, 1d, 1e Holder 1b Plug 1c Cap body 11, 13 Holder 111, 131 Front 112, 132 Rear 113, 133 Closing piece 114, 134 Contact surface 12 Coil spring 14 Ring spring 15, 16 Holding piece 17 Display plate 18 Non-slip part 19 Rotating fulcrum 2 Grasping body 3 Cylindrical body 4 Closed surface

Claims (10)

[Claims] 1. A fireworks holder for preventing back-fire of hand-held fireworks, comprising: a closing body for substantially closing an opening which can be a back-fire port of a cylinder filled with explosives of hand-held fireworks; And a grip body having a required length provided on the closing body. 2. The firework holder according to claim 1, wherein the closing body is an insert that can be inserted into the opening. 3. The firework holder according to claim 1, wherein the closing body is a cover capable of covering the opening. 4. A fireworks holder for preventing back-fire of hand-held fireworks, wherein the outer surface or inner surface and outer surface of a peripheral wall near an opening which can be a back-fire port of a cylinder filled with explosive for hand-held fireworks. And a gripper capable of substantially closing the opening, and a gripper having a required length provided in the gripper,
A firework holder, comprising: 5. A fireworks holder for preventing backfire of handheld fireworks, wherein the firework holder holds an outer surface of a peripheral wall near an opening which can be a backfire port of a cylinder filled with explosives of handheld fireworks, A holding tool having a closing piece that can substantially close the opening when the cylindrical body is held, and a gripping body having a required length provided in the holding tool,
A firework holder, comprising: 6. A fireworks holder for preventing backfire of handheld fireworks, wherein the firework holder holds an outer surface of a peripheral wall near an opening which can be a backfire port of a cylinder filled with explosive of handheld fireworks, And a gripper having a required length provided on the gripper, the gripper being configured to substantially close the opening when the cylindrical body is gripped, A firework holding device, characterized in that holding members are provided on both sides of the holding device for holding the held tubular body from both sides. 7. The firework holder according to claim 1, wherein display means for displaying a designed character is attached. 8. A method for preventing back-fire of hand-held fireworks, comprising: an insert provided in the fireworks holder, the opening being a back-fire port of a cylinder filled with explosive for hand-held fireworks. Or a method of preventing reverse fireworks injection, characterized by closing with a cover. 9. A method for preventing backfire of hand-held fireworks, comprising: providing a firework holder with an outer peripheral surface on an opening side that can be a back-fire port of a cylinder filled with explosives for handheld fireworks. A method for preventing fireworks from being reversely injected, characterized in that the opening is closed by being held by a holding device. 10. A method for preventing back-fire of hand-held fireworks, wherein a fire wall is provided with an outer peripheral surface of a peripheral wall on an opening side which can be a back-fire port of a cylinder filled with explosives of hand-held fireworks. A method for preventing reverse fireworks injection, characterized in that the opening is closed by being held by a holding tool, and held from both sides by holding pieces provided on both sides of the holding tool.