Toy gun

Abstract

To provide a toy gun (gas gun) which operates smoothly using carbon dioxide (CO2).SOLUTION: This toy gun has a valve body 11 provided in the toy gun, a discharge valve storage part 18 provided in the valve body 11 in a through-hole shape from a muzzle side to the opposite side of a muzzle, and a discharge valve 21 stored in the discharge valve storage part 18. The discharge valve 21 has a valve pin 22 and a base part 23, and discharges the BB bullet shooting gas. The valve pin 22 has a hollow part 24 opened to the muzzle side and the side inside and an outer peripheral part 25 cylindrically provided around the hollow part 24, is always energized in the reverse muzzle direction, and slides to the muzzle side and the opposite side of the muzzle. The base 23 slidably supports the valve pin 22 in the release valve housing 18. The opposite side end part of the muzzle of the outer peripheral part 25 of the valve pin 22 is provided with a contact part 26 having a diameter larger than that of the muzzle side and brought into contact with the base part 23 at the opposite side tip of the muzzle. In the toy gun, the outer periphery of the contact part 26 is reduced in diameter toward the base part 23.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.

[0003] 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]

[0004] [Patent Document 1] Utility Model Registration No. 3222458 Summary of the Invention [Problem to be solved by the invention]

[0005] Carbon dioxide (CO2 gas) is highly pressurized, so when used in a toy gun (gas gun), a great deal of force is required to open the release valve that opens and closes when firing BBs. If this pressure is directly reflected in the tension of the hammer spring (not shown) of a toy gun (gas gun) with a conventional structure, problems such as a heavier trigger pull (the force required to pull the trigger) when firing BBs will occur.

[0006] 6 to 8 are front cross-sectional views of a gas cylinder storage section 106 provided in the grip 111 of a conventional toy gun and a release valve 103 provided adjacent to the gas cylinder storage section 106, showing 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 100 is a sealed component. As shown in FIG. 7, the valve body 100 has a release valve storage section 124 formed as a through hole from the muzzle side (left side in the figure) to the opposite side of the muzzle (right side in the figure). The release valve 103 is housed inside the hollow release valve storage section 124.

[0007] The discharge valve 103 has a valve pin 122 and a base 123 . A cylindrical hollow base portion 121 is provided in the base portion 123 from the muzzle direction to the direction opposite the muzzle (horizontal direction in the figure). The fitting portion 1035 of the valve pin 122 is inserted into the hollow base portion 121 of the base portion 123 in the muzzle direction (horizontal direction in Figure 7). The fitting portion 1035 of the valve pin 122 is slidable within the hollow base portion 121, and the base portion 123 allows the valve pin 122 to slide freely from the muzzle direction to the direction opposite the muzzle (horizontal direction in Figure 7). The base portion 123 supports the valve pin 122 in the release valve storage portion 124.

[0008] The valve pin 122 of the release valve 103 has a hollow portion 1031 inside that is open to the muzzle side (left side in the drawing) and the side (upward in the drawing), and an outer peripheral portion 1032 that is cylindrically formed around the hollow portion 1031. The fitting portion 1035 does not have a hollow portion 1031. The outer circumferential portion 1032 is made up of a small diameter portion 1032b and a large diameter portion 1032a having a larger diameter than the small diameter portion 1032b.

[0009] The release valve 103 has a valve spring 107 attached around the small diameter portion 1032b of the outer circumferential portion 1032. The valve pin 122 of the release valve 103 is always biased in the direction away from the muzzle by the valve spring 107, and is able to slide toward the muzzle and away from the muzzle. As shown in Figures 6 to 8, the release valve 103 is always biased in the closing direction by the biasing force of the valve spring 107, as shown by the arrows in Figures 6 and 7. At the end of the outer circumferential portion 1032 opposite the muzzle, a large diameter portion 1032 a is provided with a larger diameter than the muzzle side, and the tip of the large diameter portion 1032 a opposite the muzzle has a contact portion 1033 that comes into contact with the base portion 123 .

[0010] As shown in FIG. 8, the end of the valve pin 122 of the release valve 103 opposite the muzzle (right side in FIG. 7) maintains the same diameter as the large diameter portion 1032a on the outer periphery, but has a hollowed-out recess 1034 on the inside, and the contact portion 1033 abuts against the base portion 123 to maintain airtightness. In the relationship where the small diameter portion of the valve pin 122 is made up of b and the large diameter portion is made up of a, as shown in Figures 6 and 7, a-b=c, and the area of ​​c is the area on which pressure is applied in the closing direction, and pressure is always applied in the closing direction.

[0011] When gas is to be supplied from the gas cylinder 101 into the valve body, the gas cylinder 101 is pushed into the gas cylinder storage section 106, the storage section presser 108 presses the bottom of the gas cylinder 101, and the needle 104 provided in the valve body 100 is pierced into the gas cylinder 101 to open the gas cylinder 101, and gas is supplied into the valve body through a passage 105 provided inside the needle 104.

[0012] In conventional guns, the high gas pressure of CO2 gas makes the trigger pull heavy, reducing the gun's operability. To avoid this problem, it is necessary to reduce the force required to open the valve (release valve). [Means for solving the problem]

[0013] This invention is a valve body provided in the toy gun; a release valve storage section provided in the valve body as a through-hole from the muzzle side to the opposite side of the muzzle; a release valve housed in the release valve housing; The discharge valve has a valve pin and a base; The valve pin has a hollow portion inside that opens toward the muzzle and to the side, and a cylindrical outer circumferential portion that surrounds the hollow portion, and is always biased in the direction away from the muzzle, and is slidable toward the muzzle and in the opposite direction from the muzzle; The base supports the valve pin in the discharge valve housing while allowing the valve pin to slide thereon; The outer periphery of the valve pin has a contact portion at the end opposite the muzzle, the contact portion being larger in diameter than the muzzle side, and the tip opposite the muzzle has a contact portion that comes into contact with the base portion. a toy gun, characterized in that the outer periphery of the contact portion becomes smaller in diameter as it approaches the base; relates to.

[0014] The present invention further provides: The release valve is a toy gun that releases the gas used to fire bullets. relates to. [Effects of the Invention]

[0015] This invention provides a toy gun (gas gun) in which the pressure applied in the closing direction of the valve (release valve) when the valve is closed is also applied in the opening direction of the valve (release valve), making it easy to open the valve (release valve). [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located in a grip portion of a toy gun according to an embodiment of the present invention, and a release valve provided adjacent to the gas cylinder storage section, showing the release valve in a state before it is opened. [Figure 2] 1 is an enlarged front cross-sectional view of the embodiment of the present invention, and is an enlarged view of FIG. [Figure 3] 1 is an enlarged front cross-sectional view of an embodiment of the present invention, and is a conceptual enlarged view of FIG. [Figure 4]1 is an enlarged front cross-sectional view of an embodiment of the present invention, and is a conceptual enlarged view of FIG. [Figure 5] 1 is an enlarged front cross-sectional view of an embodiment of the present invention, and is a conceptual enlarged view of FIG. [Figure 6] 1 is a front cross-sectional view of a gas cylinder storage section provided in a valve body located in the grip of a conventional toy gun and a release valve provided adjacent to the gas cylinder storage section, 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 7] FIG. 7 is a front cross-sectional view of a release valve according to a conventional example, which is a conceptual enlarged view of FIG. 6. [Figure 8] FIG. 7 is a front cross-sectional view of a release valve according to a conventional example, which is a conceptual enlarged view of FIG. 6. DETAILED DESCRIPTION OF THE INVENTION

[0017] An embodiment of the present invention will now be described with reference to FIGS. Reference numeral 1 denotes the grip of a toy gun (gas gun). The embodiment of the present invention is a handgun-type gas gun. In such handgun-type gas guns, the gas cylinder is often stored in the grip, and since gas is supplied from the gas cylinder, the valve body is often located near the grip. However, the present invention can also be used with rifle-type and shotgun-type gas guns. Because the gun body, including the barrel, is large, the mechanism according to the present invention may be housed 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. Both the gas cylinder and the valve body may be located in a location other than the grip. 1 is a front cross-sectional view of a valve body 11 located above a grip 1 of a toy gun according to an embodiment of the present invention and a gas cylinder storage section 12 provided inside the grip 1, with a gas cylinder 13 stored in the gas cylinder storage section 12. The release valve 21 is shown in a state before being opened. When the release valve 21 is opened, CO2 gas supplied from the gas cylinder 13 is supplied to the muzzle side, causing a BB bullet to be fired. When the release valve 21 is closed, the supply of CO2 gas to the muzzle side is stopped.

[0018] Reference numeral 11 denotes a valve body. The valve body 11 is a sealed component, and in this embodiment, is provided above the grip 1 of the toy gun. However, like the gas cylinder, the location of the valve body 11 may vary depending on the gun. Furthermore, the valve body 11 may be provided so as to be detachable from the gun body. As shown in FIGS. 1 and 2, the valve body 11 is provided with a discharge valve storage section 18 in the form of a through hole extending from the muzzle side (left side in the drawings) to the opposite side of the muzzle (right side in the drawings). The release valve housing 18 is provided inside the valve body 11 in the form of a hollow cylinder, extending from the muzzle side to the opposite side of the muzzle in the form of a through hole. The release valve 21 is housed inside the release valve housing 18. A release valve housing packing 28 is provided on the muzzle side of the release valve housing 18.

[0019] The discharge valve 21 has a substantially cylindrical shape and includes a valve pin 22 and a base 23. A hollow cylindrical base hollow portion 231 is provided in the direction opposite to the muzzle (horizontal direction in the drawing) from the muzzle direction of the base 23. The fitting portion 221, which is the end of the valve pin 22 opposite to the muzzle side, is inserted into the base hollow portion 231. Base 23 allows valve pin 22 to slide and supports release valve 21 in release valve storage section 18. Valve pin 22 is slidable. The tip of valve pin 22 on the muzzle side is inserted into release valve storage section packing 28, which always maintains an airtight seal.

[0020] The valve pin 22 of the discharge valve 21 has a hollow portion 24 inside that is open to the muzzle side (left side in the drawing) and the side (upward in the drawing), and an outer peripheral portion 25 that is cylindrically formed around the hollow portion 24. The fitting portion 221 does not have a hollow portion 24. The hollow portion 24 is hollow, with a muzzle-side opening 241 inside the valve pin 22. A side opening 242 of the hollow portion 24 provided in the outer periphery 25 of the valve pin 22 is provided so that the end of the hollow portion 24 appears on the side opposite the muzzle (hereinafter referred to as the "butt end side"). The side opening 242 is provided inside the tip of the outer periphery 25 that contacts the base 23. Therefore, when the valve is in the closed state, the side opening 242 is not exposed inside the release valve housing 18. Although the hollow portion 24 appears to pass through the center of the valve pin 22 in the drawings including FIG. 3, it may pass through a location offset from the center.

[0021] The outer peripheral portion 25 is composed of a small diameter portion 25b and a large diameter portion 25a having a larger diameter than the small diameter portion 25b. Valve pin 22 has valve spring 17 attached around small diameter portion 25b of outer periphery 25. Valve pin 22 of release valve 21 is always biased toward the rear end (right side in the figure) by valve spring 17 and is slidable toward the muzzle (left side in the figure) and toward the rear end. As shown in Figures 1 and 2, the biasing force of valve spring 17 always biases release valve 21 in the direction opposite to that indicated by the arrow in Figures 1 and 2 (i.e., toward the rear end) and in the closing direction. The outer peripheral portion 25 is provided with a contact portion 26 that comes into contact with the base portion 23 at the tip of the large diameter portion 25a on the rear end side.

[0022] 2 to 4, the outer periphery of contact portion 26 becomes smaller in diameter as it approaches base portion 23, and is provided with a chamfered surface 261. As shown in Fig. 4, chamfered surface 261 is, so to speak, formed by cutting out tip portion 26a of a conventional protruding contact portion to form an inclined surface. The chamfered surface 261 is a surface that is inclined toward the muzzle side and receives gas pressure as shown by the arrow in FIG. The contact portion 26 on the rear end side (right side in Figures 1 to 5) of the valve pin 22 of the discharge valve 21 maintains the same outer diameter as shown in Figures 2 and 3, but has a hollowed-out recess 27 on the inside. The contact portion 26 has a pointed tip to improve contact with the base portion 23 and maintain airtightness, and is formed in a sharp, protruding shape.

[0023] As shown in FIG. 2, the small diameter portion 25b of the valve pin 22 is made up of b, and the large diameter portion 25a is made up of a. In other words, a is the diameter of the large diameter portion 25 a of the valve pin 22 . b is the diameter of the small diameter portion 25b of the valve pin 22. c represents the difference between the diameter of the large diameter portion 25 a of the valve pin 22 and the diameter of the small diameter portion 25 b of the valve pin 22 . As illustrated in Figure 2, a-b=c, The area of ​​c is the surface on which pressure is applied in the closing direction.

[0024] As illustrated in Figure 2, A is the diameter of the large diameter portion 25 a of the valve pin 22 . B is the diameter of the contact portion 26. C represents the difference between the diameter of the large diameter portion 25 a of the valve pin 22 and the diameter of the contact portion 26 of the valve pin 22 . A―B=C The area of ​​C is the surface on which pressure is applied in the opening direction.

[0025] The closer the area c, which is the area on which pressure is applied in the closing direction, is to the area C, which is the area on which pressure is applied in the opening direction, or the greater the area C, which is the area on which pressure is applied in the opening direction, is than the area c, which is the area on which pressure is applied in the closing direction, the easier it is for release valve 21, which requires less force to open release valve 21, leading to a reduction in the trigger pull when firing a BB bullet.

[0026] A gas cylinder storage section 12 is provided inside the lower part of the valve body 11, below the grip section 1. A gas cylinder 13 is stored in the gas cylinder storage section 12. The gas cylinder 13 stores CO2 gas. Reference numeral 15 denotes an insertion port. The insertion port 15 is provided at one end of the gas cylinder storage section 12. The release valve 21 releases the gas used to fire the bullet.

[0027] Reference numeral 30 denotes a needle. The needle 30 has a needle-shaped tip. The needle 30 is installed in the innermost part of the gas cylinder storage section 12 where the gas cylinder 13 is stored, with the needle tip facing the insertion port 15 of the stored gas cylinder 13. The gas cylinder 13 is inserted into the gas cylinder storage section 12 through the insertion port 15 and pushed in with the insertion port presser 16, whereby the needle 30, which is installed in the innermost part of the gas cylinder storage section 12 facing the storage port of the gas cylinder 13, is pierced and opened, thereby releasing the gas. A ready-made product is used as the needle 30.

[0028] A gas passage 14 is provided in the needle 30 and is disposed between the discharge valve 21 of the toy gun and the gas cylinder 13. In this embodiment, the toy gun (gas gun) flows CO2 gas into a valve body 11. A release valve 21 in the valve body 11 ejects the CO2 gas and fires BB bullets.

[0029] When gas is to be supplied from the gas cylinder 13 to the valve body 11, the gas cylinder 13 is stored by pushing it into the gas cylinder storage section 12. The gas cylinder 13 is inserted into the gas cylinder storage section 12 through the insertion opening 15, and the bottom of the gas cylinder 13 is pushed in with the insertion section presser 16, so that the needle 30, which is installed in the valve body 11 (lower in this embodiment) facing the direction of the storage opening of the gas cylinder 13, pierces the inner part of the gas cylinder storage section 12, opening the gas cylinder 13 and releasing the gas. Gas is supplied to the valve body 11 through a gas passage 14 provided inside the needle 30.

[0030] The pre-opening, opening and closing of the discharge valve 21 will now be described. The valve pin 22 of the discharge valve 21 is always biased in the closing direction opposite to the arrow in Figure 2 by the biasing force of the valve spring 17. Therefore, the discharge valve 21 is closed and in a state before opening.

[0031] By attaching a gas cylinder 13 to the toy gun, CO2 gas is supplied into the valve body 11 through a gas passage 14 provided between the valve body 11 and the gas cylinder 13, and the CO2 gas fills the gap S between the release valve 21 and the release valve storage section 18.

[0032] When the trigger (not shown) is pulled, the hammer (not shown) strikes the valve pin 22 hard, overcoming the biasing force of the valve spring 17 and moving the valve pin 22 toward the muzzle. As a result, the valve pin contact portion 26, which had been in contact with the base 23, separates from the base 23, and the side opening 242 of the hollow portion 24 provided in the outer periphery 25 of the valve pin 22 becomes exposed inside the release valve housing 18. This causes the CO2 gas that filled the gap S to enter the side opening 242 and pass through the hollow portion 24, releasing the CO2 gas from the muzzle-side opening 241 of the hollow portion 24, and firing a BB bullet. When the BB bullet is fired, the release valve 21 closes again due to the biasing force of the valve spring 17.

[0033] The gas cylinder storage section 12 and the gas cylinder 13 may be provided separately from the toy gun. [Explanation of symbols]

[0034] 11 Valve body 18 Release valve compartment 21 Release valve 22 Valve pin 23 Base 24 Hollow part 25 outer periphery 26 Contact area

Claims

1. a valve body provided in the toy gun; a release valve storage section provided in the valve body as a through-hole from the muzzle side to the opposite side of the muzzle; a release valve housed in the release valve housing; The discharge valve has a valve pin and a base; The valve pin has a hollow portion inside that opens toward the muzzle and to the side, and a cylindrical outer circumferential portion that surrounds the hollow portion, and is always biased in the direction away from the muzzle, and is slidable toward the muzzle and in the opposite direction from the muzzle. The base supports the valve pin in the discharge valve housing while allowing the valve pin to slide thereon; The outer periphery of the valve pin has a contact portion at the end opposite the muzzle, the contact portion being larger in diameter than the muzzle side, and the tip opposite the muzzle has a contact portion that comes into contact with the base portion. A toy gun characterized in that the outer periphery of the contact portion becomes smaller in diameter as it approaches the base.

2. 2. The toy gun according to claim 1, wherein the release valve releases gas used to fire a bullet.

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