JPH0481720B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a toy gun, specifically a toy gun that fires a bullet using gas pressure, and an inner gun in which a bullet is loaded into a machine part formed inside the gun body. This invention relates to a toy gun configured such that a magazine can be detachably attached via a connecting tube.

[Conventional technology]

A toy gun that uses gas pressure and fires a bullet by pulling the trigger was published in Japanese Patent Application Laid-Open No. 1983-1999.
Many proposals have been made, including No. 173099.

Most of such known toy guns have an opening in the side wall of the engine part formed at the base of the barrel, a magazine containing a number of bullets stored in rows is connected to this opening, and the trigger is pulled. A force such as a spring is inserted inside the magazine into the space inside the engine part formed by the firing by applying gas pressure from behind the preceding bullet to be present in the engine part. This is a structure in which one of the trailing bullets is sent into the engine section and fired one after another.For example, the fifth
As shown in the figure, a cylindrical connecting pipe 50 is integrally provided vertically at a required portion of the lower outer wall of the engine section 4 of the toy gun, and an inner magazine 77 is connected to the lower end of the connecting pipe 50. Slider ring 56
The distal end portion of the connecting tube 51, which is fitted onto the outside, is removably connected.

The connecting pipe 51 has a concave groove in the outer circumferential wall of its head 52, an O-ring 53 is fitted into the concave groove, and a ring-shaped bush 54 and an O-ring 5 are attached to the lower part of the concave groove.
A small hole is bored in the pipe wall above the connecting pipe 51, and a steel ball 60 is fitted into this small hole, and as the slider ring 56 moves, a part of the steel ball 60 It is configured to be exposed within the connecting pipe 51.

A slider ring 56, which is mounted on the outside of the connecting pipe 51 so as to be vertically movable, has an enlarged diameter portion into which a bushing 54 and an O-ring 55 are fitted on the inside of the upper part, and an O-ring 58 and a bushing 59 into the inside of the lower part. An enlarged diameter portion is provided respectively, and a lower bushing 5 is provided.
9 is attached to the inner magazine 7 by a set screw 63.
The stopper 62 and the bush 59 fixed to the outer wall of
The connecting pipe 5 containing the steel ball 60 is constantly pressed upward by a spring 61 interposed between the connecting pipe 5 and the steel ball 60.
The outer wall of 1 is held airtight by upper and lower O-rings 55 and 58.

Therefore, when the slider ring 56 mounted above the connecting tube 51 provided at the tip of the inner magazine 7 is not inserted into the connecting tube 50, the urging force of the spring 61 pushes the bush 59, the slider ring 56, and the bush 54 is pushed upward together with the O-rings 54 and 58, and the bush 54 comes into contact with the lower end of the head 52 of the connecting tube 51 and stops rising. 57 is the steel ball 60 of the connecting pipe 51
Move to the part and press the steel ball 60 to release the steel ball 60.
A portion of the bullet 11 projects inside the connecting tube 51, and prevents the bullet 11, which is constantly pressed upward in the inner magazine 7, from escaping.

Furthermore, when the head 52 of the connecting tube 51 is pushed into the connecting tube 50, the tip of the connecting tube 50 resists the biasing force of the spring 61 and presses the bush 54, pushing the slider ring 56. Lower, steel ball 6
0 is held in a protruding state within the gap between the slider ring 56 and the connecting tube 51 without being exposed inside the connecting tube 51, and the bullet 11 inside the connecting tube 51 is
It is in a state where it can freely move toward the engine section 4 without being hindered by the steel ball 60, and is ready to respond immediately to firing.

Note that the connecting pipe 51 is removed from the connecting pipe 50,
When loading bullets 11 into the inner magazine 7, with the connecting tube 51 and slider ring 56 attached to the inner magazine 7, one bullet is inserted from the head 52 of the connecting tube 51. 56 by hand to release the protrusion of the steel balls 60 into the tube inner surface, and then feed the bullets 11. After feeding a predetermined number of bullets, release the slider ring 56 to release the steel balls 60. The balls 60 protrude into the connecting tube 51 to prevent the bullets 11 from flying out, and in this state the inner magazine 7 can be carried freely.

[Problem that the invention seeks to solve]

In a toy gun having such a structure, when a bullet is fired, gas pressure for firing the bullet is applied to the engine section 4, and this gas pressure is also applied to the inner magazine 7 through the connecting pipe 51.

That is, a small hole for holding the steel ball 60 is bored in the connecting pipe 51, and gas escapes to the outside through this small hole.

Therefore, in order to prevent the gas from leaking to the outside from this small hole, the connecting pipe 51 of the known toy gun is
Slider ring 56, O-ring 55 and 5
8. Bushes 54 and 59 are provided, and many small parts such as a stopper 62 and a spring 61 are used to create an extremely complex structure.

Therefore, it cannot be denied that manufacturing and assembling these parts is not only extremely troublesome, but also has a considerable effect on increasing the cost of manufacturing toy guns.

In addition, most of these many parts are not integrally connected, but are assembled from individual parts, and in particular, precise alignment and alignment are required to prevent gas from leaking from inside the engine section 4. Many complicated mechanisms are used to maintain airtightness, such as fitting means, but even with these mechanisms, it cannot be said that there is no possibility of gas leaking from the parts that come in contact with them.
It cannot be said that the disadvantages that hinder the effective use of gas as an energy source for projectile firing have been completely eliminated.

[Means for solving problems]

In view of the current situation, this invention was developed as a result of numerous research tests, and was developed as a toy that simplifies the connection mechanism between the engine part of the gun body and the inner magazine loaded with bullets, and prevents the gas used from leaking to the outside unnecessarily. The gun was developed.

Specifically, the present invention provides a toy gun having a structure that fires a bullet in response to gas pressure, in which an opening is formed in a part of the side wall of the engine section provided in the gun body, and an opening is formed through which the bullet is inserted. Along the opening edge of this opening, a bullet supply tube is provided which is covered with an O-ring and whose opening end is tapered. The inner circumferential surface of the portion is a tapered surface that slides into contact with the tapered surface at the tip of the bullet supply tube to form a stopper for preventing movement of the bullet within the cylinder, and the stopper is formed from the edge of the opening along the axial direction. A cylindrical connecting member having an inner diameter that is approximately the same as the outer diameter of the bullet supply tube is disposed on the upper outer peripheral surface of the cylindrical member provided with a plurality of slits, and the distal end surface of the cylindrical connecting member has an inner diameter that is approximately the same as the outer diameter of the bullet supply tube. A connecting tube is formed by concentrically protruding from the surface, and the opening of the connecting member of the connecting tube is attached to the outer periphery of the bullet feeding tube, and the tapered surface at the tip of the bullet feeding tube forms a connecting tube. When the cylindrical member constituting the tube is press-fitted into the cylindrical member while making sliding contact with the tapered surface at the tip, the cylindrical member's tip expands in diameter to feed the bullets in the inner magazine through the bullet supply tube. When the connecting tube is removed from the bullet supply tube, the tip of the cylindrical member constituting the connecting tube is reduced in diameter to its original state, and the stopper is inserted into the cylindrical member. This toy gun is characterized in that it is configured to protrude from the inner magazine to prevent the bullets in the inner magazine from moving from the connecting pipe to the bullet supply pipe side.

[Effect]

As shown in FIG. 4, the toy gun 1 of the present invention includes:
An opening 13 is provided in a part of the side wall of the engine section 4, and a bullet supply pipe 2 is provided along the opening edge of this opening.
5 is provided protrudingly, and the connecting member 28c of the connecting tube 28, which is connected to the distal end of the inner magazine 7, is fitted into the bullet supply tube 25 in a secure manner, and the bullet supply tube 2
The tip of the cylindrical member 28a constituting the connecting pipe 28 is expanded by the tip of the tube 5, and the bullets 11 contained in the inner magazine 7 are sequentially supplied to the bullet loading member 5 of the engine section 4. It is configured to do so.

Therefore, when the connecting tube 28 connecting the inner magazine 7 loaded with bullets 11 is attached to the bullet supply tube 25 of the engine section 4 formed in the gun body 2, the connecting member 28c constituting the connecting tube 28 Since the inner wall and the outer wall of the bullet supply tube 25 are kept secret by the O-ring 26, even if gas pressure reaches the inner magazine 7 through the opening 13 of the engine section 4,
A stopper 30 is provided to prevent gas from leaking outside and to prevent the bullet 1 from moving to the engine section 4 at the tip of the cylindrical member 28a constituting the connecting pipe 28.
is released by the action of the bullet supply pipe 25 and the slit 29, making it possible to continuously supply the bullet 11 to the engine section 4.

Further, when the connecting pipe 28 is removed from the bullet supply pipe 25 provided in the engine section 4, the cylindrical member 28a
The diameter of the distal end of the inner magazine 7 is reduced by its elasticity, and a stopper 30 protrudes into the cylinder to prevent the bullet 11 from flying out from the inner magazine 7.

Note that in order to fill the empty inner magazine 7 with bullets 11, the connecting pipe 28 is connected to the bullet supply pipe 25.
The bullets 11 are sequentially pushed through the opening 31 of the connecting member 28c.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The toy gun 1 of this invention, as shown in FIG.
Basically, it is composed of a gun barrel member 3, an engine section 4 housing a bullet loading member 5, a gun body 2 equipped with a gas supply valve 15, a trigger 19, and a magazine 24.

The gun barrel member 3 is composed of a pipe member, and is disposed so as to loosely pass through a notch in a fixing plate 6 provided on the distal end side of the gun body 2 so as to be slidable in the axial direction. The proximal end thereof is located near the opening 13 after the initial end of an enlarged diameter stepped portion 14 formed inside the distal end of the engine section 4, which will be described later.

The engine section 4 is formed of a pipe member, and as described above, the diameter-enlarging stepped section 14 that expands in diameter toward the tip is formed on the inner circumferential surface near the tip. A bullet loading member 5 that is guided by a pin 12 and slides in the axial direction is installed inside.

This bullet loading member 5 is always urged in the direction of the gun barrel member 3 by a spring 9 having a weaker urging force than the spring 8, and its tip is positioned at the muzzle of the gun from the position of the opening 13 formed in the engine part. It is in contact with the proximal end of the barrel member 3 via the O-ring 10 on the side and rearward of the initial end of the enlarged diameter stepped portion 14 .

The opening 13 consisting of a hole with a diameter sufficient for a bullet to pass through is formed in the side wall located below the engine section 4, and a cylindrical bullet supply pipe 25 is provided along the edge of the opening. As is clear from FIGS. 2 to 4, the bullet supply pipe 25 is integrally protruded, and the outer diameter of the bullet supply pipe 25 is set at an appropriate distance from the base of the engine section 4 through a step. As the diameter is reduced, an O-ring 26 is fitted into a groove formed on the outer wall of this reduced-diameter portion, and the outer wall of the opening at its tip is shaved off at an appropriate angle to form a tapered surface 27. in,
It communicates with the inside of the engine section 4 via the opening 13.

This bullet supply pipe 25 is connected to a connecting pipe 28 having an inner magazine 7 at one end, and a bullet loading member 5 slidably provided in the engine section 4 receives bullets from the inner magazine 7.
It is constructed so that it always stops at a position that accepts 1.

The inner magazine 7 is composed of a cylindrical body made of metal or synthetic resin material, the inner diameter of which is approximately the same as the outer diameter of the bullet to be used, and a spring (not shown) at the bottom. It is configured so that the filled bullet 11 is constantly pushed upward, and the bullet supply pipe 2 is connected to the bullet supply pipe 2 through the connecting pipe 28.
5 and is stored in a magazine 24.

On the other hand, the connecting pipe 28 that is fitted onto the outside of the bullet supply pipe 25 is entirely made of a synthetic resin material such as nylon, which has appropriate elasticity and resilience against distortion, is wear-resistant, and has excellent dimensional stability. The tip of the inner magazine 7 is screwed into the base end of a cylindrical member 28a having the same inner diameter as the inner diameter of the inner magazine 7, and the inner circumferential surface of the tip is The tapered surface 28b is in sliding contact with the tapered surface 27 at the tip of the bullet supply tube 25, and a hook-shaped stopper 30 for preventing the movement of the bullet 11 is formed in the tip of the cylindrical member 28a, and the edge of the opening is A plurality of slits 29 are provided along the axial direction, and when the tapered surface 28b at the tip of this cylindrical member 28a and the tapered surface 27 at the tip of the bullet supply tube 25 come into contact, the tip of the cylindrical member 28a The upper outer peripheral surface of the cylindrical member 28a has an inner diameter that is slightly larger than the outer diameter of the reduced-diameter portion of the bullet supply tube 25 that is covered with the O-ring 26. A cylindrical connecting member 2 having
8c is integrally attached with its distal end surface protruding from the distal end surface of the cylindrical member 28a.

Therefore, the connecting member 2 constituting the connecting pipe 28
When the opening 31 of the bullet supply tube 25 is inserted along the reduced diameter part of the bullet supply tube 25, the connecting member 28c is connected to the bullet supply tube 2 through the O-ring 26, as shown in FIG.
The tapered surface 27 at the tip of the reduced diameter section and the tapered surface 28b at the tip of the cylindrical member 28a are in contact with each other, and the tip of the reduced diameter section is connected to the tip of the cylindrical member 28a. Since the cylindrical member 28a is press-fitted into the inside, the tip of the cylindrical member 28a is expanded by the slit 29, and the stopper 30 does not protrude inward.
A through hole sufficient for passing the bullet 11 is formed between the inner magazine 7 and the bullet supply pipe 25.

In addition, from the bullet supply pipe 25 to the inner magazine 7
When the connecting tube 28 is pulled out with the . The tip end of the inner magazine 7 is reduced in diameter to its original state, and the stopper 30 protrudes into the bullet path to prevent the bullet 11 from escaping from the inner magazine 7.

The O-ring 10 made of an elastic material is disposed between the gun barrel member 3 and the bullet loading member 5 of the gun body 2.
Its inner diameter is slightly narrower than the diameter of the bullet 11, and when the bullet loading member 5 is in the bullet loading position, it is located closer to the muzzle than the opening 13 formed in the engine part 4 and at the beginning of the enlarged diameter stepped part 14. When the bullet 11 from the inner magazine 7 is loaded into the bullet loading member 5, the bullet 11 is prevented from moving toward the muzzle side. , the next bullet 11 is prevented from moving into the barrel member 3.

As shown in FIG. 1, a gas supply valve 15 is provided in the gun body 2 at the rear of the engine section 4 having such a structure.

The gas supply valve 15 includes a valve body 16 that is always closed by the biasing force of a spring 17, and low-pressure fluorocarbon gas supplied from a gas cylinder (not shown) is sent into the engine section 4 via a gas tube 18. It prevents you from being exposed.

A trigger 19 provided on the gun body 2 is interlocked with the gas supply valve 15 via a cam member 21 having two arms.

That is, when the trigger 19 is pulled against the biasing force of the spring 20, the cam member 21 that interlocks with the trigger 19
is activated, and one arm of the cam member 21 touches the valve body 1.
6 against the biasing force of a spring 17 to open the gas supply valve 15, so when the trigger 19 is pulled, the fluorocarbon gas from the gas cylinder is spouted into the engine section 4, and the bullet It is configured to apply gas pressure to the back surface of 11.

When gas pressure is applied behind the bullet 11 by operating the trigger 19, the gas pressure (usually 6 to 7 atmospheres) increases.
is stronger than the biasing force of the spring 8, the bullet 11 is pushed out toward the muzzle at the same time as the bullet loading member 5 by the gas pressure.

Note that the next bullet 11 is prevented from entering the engine section 4 by the movement of the bullet loading member 5 toward the muzzle.

As a result, the O-ring 10 that had been blocking the movement of the bullet 11 also moves toward the muzzle, and the barrel member 3 also moves toward the muzzle, but an enlarged diameter stepped portion 14 is formed in the distal end of the engine section 4. and since the O-ring 10 is made of an elastic material, the enlarged diameter stepped portion 1
When the O-ring 10 reaches inside the bullet 11, the O-ring 10 expands in diameter due to the pressure received from the spherical surface of the bullet 11.
1 is pushed out beyond the O-ring 10 into the barrel member 3, and is ejected from the muzzle by gas pressure.

When the bullet 11 is fired, the gas pressure disappears, and the barrel member 3 returns to its original bullet loading position due to the action of the spring 8 against the biasing force of the spring 9.
The ring 10 also returns to its original position, and a new bullet 11 from the inner magazine 7 is supplied to the bullet loading member 5 in the engine section 4 through the connecting pipe 28 and the bullet supply pipe 25.

In the figure, 22 is a stopper for the trigger 19, 23 is a grip, and 32 is an inner magazine 7 and a connecting pipe 28.
The screw-in part is shown.

〔Effect of the invention〕

The toy gun of the present invention has an opening formed in a part of the side wall of the engine part of the gun body, through which a bullet is inserted.
A bullet supply pipe is connected to this opening, and separately, a distal end of an inner magazine is attached to the base end, and the inner peripheral surface of the distal end is slidably connected to the tapered surface of the distal end of the bullet supply pipe. A stopper for preventing the movement of the bullet is formed in the cylinder as a contacting tapered surface, and a plurality of slits are provided along the axial direction from the edge of the opening on the upper outer peripheral surface of the cylindrical member. forming a connecting tube in which a cylindrical connecting member having an inner diameter approximately the same as the outer diameter of the bullet supply tube is provided concentrically with its distal end surface protruding from the distal end surface of the cylindrical member; This connecting tube can be detachably attached to the bullet supply tube.

Therefore, when the connecting tube is attached to the bullet supply tube, an O-ring is interposed between the inner wall of the connecting member constituting the connecting tube and the outer wall of the bullet supply tube to keep them secret, and the gas is kept secret. Even if the gas flows out from the bullet insertion opening provided in the engine part to the inner magazine side, the gas does not leak out from the engine part, and the connecting member is connected by the tip of the bullet supply pipe. Expanding the diameter of the tip of the cylindrical member constituting the
The operation of the stopper for preventing the movement of the bullets protruding into the cylindrical member is released, and the bullets can be smoothly supplied from the inner magazine to the engine section.

On the other hand, when the connecting tube is removed from the bullet supply tube connected to the engine part, the diameter of the tip of the cylindrical member constituting the connecting tube is automatically reduced, and the stopper formed at the tip of the cylindrical member is automatically reduced in diameter. protrudes into the cylinder and prevents bullets from ejecting from the inner magazine.

In addition, the toy gun of the present invention allows for one-touch attachment/detachment of the engine section and the in-mar magazine, and eliminates any leakage of gas from the connection part to fully utilize the gas for firing bullets. In addition, the number of components for connection can be kept to a minimum compared to the conventional mechanism for connecting the engine part of a toy gun and an inner magazine, so the cost of manufacturing parts can be significantly reduced. It has many advantages, such as the fact that the toy gun can be assembled much more easily and the productivity of the toy gun can be greatly improved.

[Brief explanation of drawings]

Fig. 1 is an overall vertical cross-sectional view showing an example of a toy gun of the present invention, Fig. 2 is a longitudinal cross-sectional view showing a bullet supply pipe, which is an important part of this invention, and Fig. 3 is a connecting pipe, which is also an important part. FIG. 4 is a vertical cross-sectional view showing a connecting pipe connected to a bullet supply pipe, and FIG. 5 is a vertical cross-sectional view showing a connection structure between a machine part and an inner magazine in a conventional toy gun. . 1... Toy gun, 2... Gun body, 3... Gun barrel member, 4... Engine part, 5... Bullet loading member, 6...
Fixed plate, 7... Inner magazine, 10... O-ring, 11... Bullet, 13... Opening, 14...
Expanded diameter step, 15... Gas supply valve, 16... Valve body, 19... Trigger, 22... Grip, 25...
Bullet supply pipe, 26... O ring, 27... Tapered surface, 28... Connecting pipe, 28a... Cylindrical member, 2
8b...Tapered surface, 28c...Connecting member, 29
...Slit, 30...Stopper, 31...Opening.

Claims (1)

[Scope of Claims] 1. In a toy gun having a structure that fires a bullet in response to gas pressure, a part of the side wall of the engine section provided in the gun body is formed with an opening through which the bullet is inserted. A bullet supply tube is provided along the opening edge of the opening, which is covered with an O-ring and whose opening end is tapered. The inner circumferential surface of the bullet feeding tube has a tapered surface that slides in contact with the tapered surface at the tip of the bullet supply tube to form a stopper for preventing the movement of the bullet inside the tube, and a plurality of stoppers are formed along the axial direction from the edge of the opening. A cylindrical connecting member having an inner diameter that is approximately the same as the outer diameter of the bullet supply tube is placed on the upper outer circumferential surface of the cylindrical member provided with the slit, and its distal end surface is closer to the distal end surface of the cylindrical member. The connecting tubes are provided concentrically in a protruding state, and the opening of the connecting member of the connecting tube is attached to the outer periphery of the bullet feeding tube, and the tapered surface at the tip of the bullet feeding tube connects the connecting tube. When press-fitted into the cylindrical member while making sliding contact with the tapered surface of the tip of the cylindrical member, the diameter of the tip of the cylindrical member expands and the bullets in the inner magazine are transferred to the engine section through the bullet supply pipe. By removing the connecting tube from the bullet supply tube,
The tip of the cylindrical member constituting the connecting pipe is reduced in diameter to its original state, and the stopper protrudes into the cylindrical member,
A toy gun characterized in that the bullets in the inner magazine are prevented from moving from the connecting pipe to the bullet supply pipe side. 2. The connecting pipe is characterized in that a cylindrical member and a cylindrical connecting member provided concentrically outside the cylindrical member are integrally molded from synthetic resin. toy gun. 3. Claims characterized in that the engine section communicates with a gas supply valve that opens and closes a valve body by operating a trigger to supply or stop gas from a gas cylinder to the engine section. The toy gun described in paragraph 1.