Toy gun

Abstract

To provide a smoothly operating toy gun (air gun) using carbon dioxide (CO2).SOLUTION: A toy gun comprising: a valve body (11) provided in the toy gun; a release valve (21) housed in the valve body (11) and releasing gas used for bullet shooting; a gas canister (B) attached to the toy gun; a needle (13) attached in the valve body (11), having a gas passage therein, and communicating the release valve (21) with the gas canister (B); and a small diameter portion (C) provided between the gas passage (14) and the release valve and having a diameter smaller than that of the gas passage.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a toy gun, and more particularly to a toy gun or gas gun that fires BB bullets by discharging gas stored in a gas cylinder through a release valve. [Background technology]

[0002] Conventionally, alternative fluorocarbons have been used as the power source for toy guns (gas guns) that use compressed gas to fire BB bullets, such as 6 mm diameter BB bullets. However, alternative fluorocarbons are considered to have a greenhouse effect several hundred to 10,000 times greater than that of carbon dioxide. Therefore, from the perspective of preventing global warming and protecting the environment, carbon dioxide (CO2) is increasingly being used as an alternative power source to alternative fluorocarbons. However, CO2 gas has a higher gas pressure than alternative fluorocarbons, making it difficult to control the gas flow rate, and it is difficult to operate toy guns using conventional technology that uses alternative fluorocarbons. Furthermore, if the gas pressure remains high, the output of the toy gun will be too high, far exceeding the limit regulated by the Swords and Firearms Act, making it difficult to sell in Japan. Controlling the gas pressure when using CO2 gas is an urgent issue. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3222458 Summary of the Invention [Problem to be solved by the invention]

[0004] 15 is a front cross-sectional view of a gas cylinder storage section 106 located in the grip of a conventional toy gun and a valve body 102 provided adjacent to the gas cylinder storage section 106, with a gas cylinder 101 stored in the gas cylinder storage section 106. The release valve 103 is shown in a pre-open state. The valve body 102 is a sealed part that houses the release valve 103 inside.

[0005] 16 is a front cross-sectional view of a gas cylinder storage compartment 106 located in the grip of a toy gun and a valve body 102 provided adjacent to the gas cylinder storage compartment 106, with a gas cylinder 101 stored in the gas cylinder storage compartment 106. The release valve 103 is in an open state due to the operation of a trigger (not shown). As shown in Figures 15 and 16, the discharge valve 103 is constantly biased in the closing direction by the biasing force of the valve spring 107, resisting movement towards the muzzle. When gas is supplied from the gas cylinder 101 to the valve body 102, the gas cylinder 101 is pushed into the gas cylinder storage section 106, and the gas cylinder 101 is inserted into the needle 104 provided in the valve body 102 to open the gas cylinder 101, and gas is supplied into the valve body 102 from the gas passage 105 provided inside the needle 104. Gas cylinder 101 is filled with high-pressure CO2 gas, and therefore is made of a hard metal. Needle 104 for opening gas cylinder 101 is made of a metal that is harder than the gas cylinder itself, and drilling a precise, minute hole in such a hard metal requires a considerable amount of cost. For this reason, a ready-made product is used for needle 104.

[0006] In the conventional example, because the CO2 gas pressure is high, if CO2 gas is immediately flowed into the valve body 102 from the gas cylinder 101 stored in the gas cylinder storage section 106 provided in the toy gun, when the release valve 103 moves in the direction shown by the arrow to fire a BB bullet as shown in Figure 16, the open release valve 103 will not be able to return completely even with the bias of the valve spring 107. This will cause a large amount of CO2 gas to leak out, and the release valve 103 will not be able to close unless the gas pressure inside the gas cylinder 101 drops, resulting in a waste of CO2 gas inside the gas cylinder 101.

[0007] In this way, in the conventional example, too much gas is released, so it is necessary to suppress the amount of gas released. However, since the needle 104 is a ready-made product, it is difficult to change the diameter of the gas passage 105. [Means for solving the problem]

[0008] This invention is a valve body provided in the toy gun; a release valve housed inside the valve body for releasing gas used to fire a bullet; A gas cylinder attached to a toy gun, a needle attached to the inside of the valve body, having a gas passage therein, and communicating the release valve with the gas cylinder; a small diameter portion having a diameter smaller than that of the gas passage, the small diameter portion being provided between the gas passage and the release valve; A toy gun characterized by having relates to.

[0009] The present invention further provides: The valve body is a sealed part used in toy guns, relates to.

[0010] The present invention further provides: A toy gun in which the small diameter portion smaller than the gas passage is a separate part from the valve body. relates to.

[0011] The present invention further provides: The small diameter portion, which is smaller in diameter than the gas passage, is provided in the valve body. relates to. [Effects of the Invention]

[0012] This invention provides a smooth-operating toy gun (air gun) that uses carbon dioxide (CO2). [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located above a grip of a toy gun according to a first embodiment of the present invention, and a release valve provided in the valve body, showing a state in which a gas cylinder is stored in the gas cylinder storage section and the release valve has not yet been opened. [Figure 2] 1 is an enlarged front cross-sectional view of the first embodiment of the present invention, and is an enlarged view of FIG. [Figure 3] 1 is a perspective view of a part with a narrowed portion provided between a discharge valve and a gas cylinder of a toy gun according to a first embodiment of the present invention. FIG. [Figure 4] 1 is a plan view of a part with a narrowed portion provided between a discharge valve and a gas cylinder of a toy gun according to a first embodiment of the present invention. FIG. [Figure 5] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located above a grip of a toy gun according to a first embodiment of the present invention, and a release valve provided in the valve body, showing a state in which a gas cylinder is stored in the gas cylinder storage section and the release valve in an open state. [Figure 6] 5 is an enlarged front cross-sectional view of the toy gun according to the first embodiment of the present invention. FIG. [Figure 7] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located above a grip of a toy gun according to a first embodiment of the present invention, and a release valve provided in the valve body, showing a state in which a gas cylinder is stored in the gas cylinder storage section and the release valve is in a closed state. [Figure 8]8 is an enlarged front cross-sectional view of the toy gun according to the first embodiment of the present invention, and is an enlarged view of FIG. 7. [Figure 9] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located above a grip of a toy gun according to a second embodiment of the present invention, and a release valve provided in the valve body, showing a state in which a gas cylinder is stored in the gas cylinder storage section and the release valve has not yet been opened. [Figure 10] 9 is an enlarged front cross-sectional view of a toy gun according to a second embodiment of the present invention; FIG. [Figure 11] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located above a grip of a toy gun according to a second embodiment of the present invention, and a release valve provided in the valve body, showing a state in which a gas cylinder is stored in the gas cylinder storage section and the release valve in an open state. [Figure 12] 11 is an enlarged front cross-sectional view of a toy gun according to a second embodiment of the present invention. FIG. [Figure 13] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located above a grip of a toy gun according to a second embodiment of the present invention, and a release valve provided in the valve body, showing a state in which a gas cylinder is stored in the gas cylinder storage section and the release valve is in a closed state. [Figure 14] FIG. 14 is an enlarged front cross-sectional view of a toy gun according to a second embodiment of the present invention, which is an enlarged view of FIG. [Figure 15] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located above a grip of a conventional toy gun, and a release valve provided in the valve body, showing a state in which a gas cylinder is stored in the gas cylinder storage section and the release valve is in a pre-open state. [Figure 16] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located above a grip of a conventional toy gun and a release valve provided in the valve body, showing a gas cylinder stored in the gas cylinder storage section and the release valve in an open state. DETAILED DESCRIPTION OF THE INVENTION

[0014] A first embodiment of the present invention will be described below with reference to FIGS. A is the grip of a toy gun (air gun). The first and second embodiments are handgun-type air guns. In the case of such handgun-type air guns, the gas cylinder is often stored in the grip. However, the present invention can also be used in rifle-type and shotgun-type air guns. In these cases, the gun body, including the barrel, is large, so the mechanism according to the present invention may be stored in a location other than the grip. Therefore, the location of the mechanism according to the present invention may vary depending on the gun and is not limited to the grip. Reference numeral 11 denotes a valve body. The valve body 11 is a sealed part, and in this embodiment, is provided above the grip portion A of the toy gun. A gas cylinder storage portion 12 is provided inside the grip portion A. A gas cylinder B containing CO2 gas is stored in the gas cylinder storage portion 12. Reference numeral 15 denotes an insertion port. The insertion port 15 is provided at one end of the gas cylinder storage portion 12. Although the valve body 11 and the gas cylinder storage portion 12 are provided as a single unit in the first and second embodiments, they may also be provided separably. Reference numeral 21 denotes a release valve. The release valve 21 is provided in a substantially cylindrical shape. Reference numeral 212 denotes a hollow portion. The hollow portion 212 is provided inside the release valve 21 with the muzzle side open. In the first and second embodiments, the hollow portion 212 is provided in the center of the release valve 21, but it is sufficient that the hollow portion 212 penetrates the inside of the release valve 21, and there is no problem with the operation of the gun even if it is provided off-center. The side of hollow portion 212 opposite the muzzle is open, and as shown in Figure 6 (Figure 12 in the second embodiment), CO2 gas from gas cylinder B can be introduced into hollow portion 212. When release valve 21 is opened, CO2 gas in valve body 11 is supplied to the muzzle, firing a BB bullet, and when closed, the supply of CO2 gas to the muzzle is stopped. Reference numeral 22 denotes a release valve storage section. The release valve storage section 22 is hollow and provided inside the valve body 11, which is a sealed part provided in the toy gun, at the end opposite to the insertion port 15 for the gas cylinder B into the gas cylinder storage section 12. The release valve 21 is stored in the release valve storage section 22.

[0015] Reference numeral 13 denotes a needle. The needle 13 has a needle-shaped tip. The needle 13 is installed in the innermost part of the gas cylinder storage section 12 where the gas cylinder B is stored, with the needle tip facing the insertion port 15 of the stored gas cylinder B. The gas cylinder B is pierced into the needle 13 to open it and release CO2 gas. The CO2 gas passes through a gas passage 14 in the needle 13 and a small diameter portion C, and is filled into a gap S between a release valve 21 and a release valve storage section 22 in the valve body 11. A ready-made product is used for the needle 13.

[0016] A gas passage 14 is provided inside the needle 13.

[0017] Reference numeral 31 denotes a narrow portion-equipped part. As shown in Fig. 3, which is a perspective view of narrow portion-equipped part 31 according to a first embodiment of the present invention, and Fig. 4, which is a plan view of narrow portion-equipped part 31, narrow portion-equipped part 31 is formed in a substantially cylindrical shape, and is provided therein with a small diameter portion C whose diameter is smaller than that of gas passage 14. In the first embodiment, small diameter portion C whose diameter is smaller than that of gas passage 14 is provided in narrow portion-equipped part 31, which is a separate part from valve body 11. Narrow portion-equipped part 31 having narrow portion C is provided between valve body 11 and gas cylinder B stored in gas cylinder storage section 12, and connects the two.

[0018] When gas is to be supplied from gas cylinder B into the valve body 11, gas cylinder B is stored in gas cylinder storage section 12. Gas cylinder B is inserted into gas cylinder storage section 12 through insertion port 15 and pushed in with insertion section presser 16, so that needle 13, which is installed below valve body 11 facing the storage port of gas cylinder B, pierces the inner part of gas cylinder storage section 12, opening gas cylinder B and releasing gas. Gas is supplied into valve body 11 from gas passage 14 provided inside needle 13 through narrow section C.

[0019] The pre-opening, opening and closing of the discharge valve 21 will now be described. 1 and 2 show a state in which a gas cylinder B is stored in the gas cylinder storage section 12 and the release valve 21 has not yet been opened. The discharge valve 21 is always pushed in the closing direction away from the muzzle by the biasing force of the valve spring 17. Therefore, the discharge valve 21 is closed and in a state before opening.

[0020] The gap S between the release valve 21 and the release valve housing 22 is filled with CO2 gas. When the trigger (not shown) is pulled, the hammer (not shown) strikes the rear end of the release valve (the side opposite the muzzle) with great force. This causes the release valve 21 to move toward the muzzle against the biasing force of the valve spring 17, opening the valve. The CO2 gas that had filled the gap S in the valve body 11 enters the hollow portion 212 inside the release valve 21 and is released from the hollow portion 212 toward the muzzle. If a BB bullet is loaded in the gun body, the BB bullet is fired. As shown in FIGS. 5 and 6, the gas cylinder B is stored in the gas cylinder storage section 12, and the release valve 21 is in an open state. After the CO2 gas in the gap S is released by the movement of the release valve 21, the release valve 21 is closed again by the biasing force of the valve spring 17 as shown in FIGS.

[0021] A second embodiment of the present invention will now be described, which is shown in FIGS. In the second embodiment, the narrow diameter portion C, which has a smaller diameter than the gas passage 14, is provided below the valve body 11. Other than that, the structure is the same as that of the first embodiment. Note that the narrow diameter portion C may be provided between the discharge valve housing 22 and the needle 13 in any gun body or part other than the valve body 11. 9 and 10 show a state in which the gas cylinder B is stored in the gas cylinder storage section 12 and the release valve 21 has not yet been opened. The release valve 21 is always pushed in the closing direction opposite to the arrow in Figures 11 and 12 (opposite the muzzle) by the biasing force of the valve spring 17. Therefore, the release valve 21 is closed and in a state before opening.

[0022] The gap S between the release valve 21 and the release valve housing 22 is filled with CO2 gas. When the trigger (not shown) is pulled, the hammer (not shown) strikes with great force the end of the release valve 21 opposite the muzzle. This causes the release valve 21 to overcome the biasing force of the valve spring 17, move toward the muzzle, and open, causing the CO2 gas that had been filling the gap S in the valve body 11 to enter the hollow portion 212 provided inside the release valve 21 and be released from the hollow portion 212 through the muzzle, firing the BB bullet if one is loaded in the gun body. As shown in FIGS. 11 and 12, the gas cylinder B is stored in the gas cylinder storage section 12, and the release valve 21 is in an open state. After the CO2 gas in the gap S is released by the movement of the release valve 21, the release valve 21 is closed again by the biasing force of the valve spring 17 as shown in FIGS.

[0023] The gas cylinder storage section 12 and the gas cylinder B may be provided separately from the toy gun (particularly the valve body 11). [Explanation of symbols]

[0024] 11 Valve body 13 Needle 14 Gas passage 21 Release valve B Gas Cylinder C small diameter part

Claims

1. a valve body provided in the toy gun; a release valve housed inside the valve body for releasing gas used to fire a bullet; A gas cylinder attached to a toy gun, a needle attached to the inside of the valve body, having a gas passage therein, and communicating the release valve with the gas cylinder; a small diameter portion having a diameter smaller than that of the gas passage, the small diameter portion being provided between the gas passage and the release valve; A toy gun comprising:

2. 2. The toy gun according to claim 1, wherein the valve body is a sealed part.

3. 3. A toy gun according to claim 1, wherein the small diameter portion having a diameter smaller than that of the gas passage is formed as a separate part from the valve body.

4. 3. The toy gun according to claim 1, wherein the small diameter portion having a diameter smaller than that of the gas passage is provided in the valve body.

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