JPH074892A - Full automatic gas gun - Google Patents

Abstract

PURPOSE:To enable accurate control of the shot state of bullet to be carried out by a method wherein when a trigger is pulled, a switching means sends a trigger pulse to a solenoid valve and a bullet shooting valve is opened or closed with the solenoid valve. CONSTITUTION:As a trigger 1 is pulled, a switching means 3 sends a plurality of trigger pulses to a solenoid valve 4. The solenoid valve 4 is opened or closed repeatedly by a plurality of times at a specified time interval with a trigger pulses sent from the switching means 3. As the solenoid valve 4 is opened, a piston 7 of a driving cylinder 5 is pushed out with gas pressure. As the solenoid valve 4 is closed, the piston 7 is pushed back by a returning spring 23. A bullet shooting valve 6 is opened or closed with this piston 7. As the bullet shooting valve 6 is opened, a bullet 20 is shot from a barrel 21 by the gas pressure. An oscillation circuit of an electrical trigger pulse oscillates a trigger pulse at an accurate time interval and then a time interval of the trigger pulse can be adjusted quite easily by adjusting the capacitance of a capacitor or a resistance value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a full-automatic gas gun capable of continuously ejecting a plurality of bullets by pulling a trigger by the pressure of air or a gas such as Freon gas.

[0002]

2. Description of the Related Art Full-automatic gas guns have been developed in which a plurality of bullets are continuously ejected when a trigger is pulled. The conventional fully automatic gas gun uses the mechanism of a gas gun in which one shot pops out when the trigger is pulled, and the trigger portion is modified. That is, the cam is driven by a motor to pull the trigger a plurality of times, and the bullet is ejected each time the trigger is pulled.

[0003]

Since the fully automatic gas gun of this structure is driven by a motor, it has a complicated mechanism. Moreover, the firing time interval of the bullets and the firing time when the trigger is triggered once are set. There is a drawback that it is difficult to control the number of bullets

The present invention was developed for the purpose of solving these drawbacks of conventional full-automatic gas guns, and an important object of the present invention is to fully control the firing state of bullets. To provide a gas gun. Another important object of the present invention is to provide a fully automatic gas gun which has a simple mechanism and has few failures.

[0005]

A fully automatic gas gun according to the present invention is connected to a trigger 1, a trigger switch 2 which is turned on / off in conjunction with the trigger 1, and the trigger switch 2. With the input signal from the trigger switch 2,
Switching means 3 for generating a plurality of trigger pulses at predetermined constant time intervals, solenoid valve 4 connected to this switching means 3 and opened / closed by an output pulse signal of switching means 3, and this solenoid valve There is provided a drive cylinder 5 connected to an air source via 4 and a bullet firing valve 6 connected to a piston 7 of the drive cylinder 5 and opened / closed by the piston 7.

The fully automatic gas gun of this structure operates in the following states. When the trigger 1 is pulled, the switching means 3 sends a plurality of trigger pulses to the solenoid valve 4. By the trigger pulse sent from the switching means 3, the solenoid valve 4 is repeatedly opened and closed a plurality of times at constant time intervals. When the solenoid valve 4 is opened, the piston 7 of the drive cylinder 5 is pushed out, and when the solenoid valve 4 is closed, the piston 7 is pushed back by the return spring 23. The bullet firing valve 6 is opened and closed by the piston 7. When the bullet firing valve 6 is opened, the pressure of the gas causes the bullet to fire from the barrel.

[0007]

In the fully automatic gas gun of the present invention, the switching means is controlled by the trigger, the solenoid valve is opened and closed by the trigger pulse generated by the horizontal film means, and the bullet firing valve is opened and closed by the solenoid valve. is doing. The switching means oscillates an electrical trigger pulse by the input signal from the trigger switch. The electrical trigger pulse oscillation circuit oscillates the trigger pulse at precise time intervals,
In addition, the time interval of the trigger pulse can be adjusted very easily by adjusting the capacitance of the capacitor or the resistance value.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. However, the embodiments shown below exemplify a device for embodying the technical idea of the present invention, and the device of the present invention has the material, shape, structure, and arrangement of the components in the following structures. Not specific. The device of this invention is
Various changes may be made within the scope of the claims.

Further, in this specification, for easy understanding of the claims, the numbers corresponding to the members shown in the embodiments, "the claims column", and "the conventional problems are solved. It is added to the members shown in the column of "means for doing". However, the members shown in the claims are not limited to the members of the embodiment.

The fully automatic gas gun shown in FIG. 1 has a trigger 1 for firing a bullet, a trigger switch 2 interlocked with the trigger 1, and an input signal from the trigger switch 2. Therefore, a switching means 3 for generating a plurality of trigger pulses at predetermined constant time intervals, an electromagnetic valve 4 connected to the switching means 3 and opened / closed by an output pulse signal of the switching means 3, A drive cylinder 5 connected to an air source via a solenoid valve 4.
And a bullet firing valve 6 connected to the piston 7 of the drive cylinder 5 and opened and closed by the piston 7.

The trigger switch 2 electrically detects that the trigger 1 is pulled. The trigger switch 2 is turned on when the trigger 1 is pulled and turned off when the trigger 1 is not pulled. A micro switch can be used as the trigger switch 2. The micro switch is arranged at a position where the plunger hits the trigger 1. When the trigger 1 is pulled, the plunger is pushed by the trigger 1, and in this state, it is turned on.

The switching means 3 comprises oscillation circuits 3A, 3B, 3C which oscillate a plurality of trigger pulses when the trigger switch 2 is on. Three sets of oscillator circuits are provided. When the ON signal is input from the trigger switch 2, the first oscillator circuit 3A generates one trigger pulse. When the ON signal is input from the trigger switch 2, the second oscillator circuit 3B has a predetermined number, for example, 2 to
It oscillates 5 trigger pulses. Further, the third oscillating circuit 3C continuously oscillates a trigger pulse when the trigger switch 2 is in the ON state.

Each of the oscillation circuits oscillates a trigger pulse having a constant time width. The time width of the trigger pulse is adjusted to the time at which the bullet firing valve 6 can reliably fire one bullet. The trigger pulse having a certain time width opens the electromagnetic valve 4 for a certain period of time to make the amount of gas sent to the drive cylinder 5 by the electromagnetic valve 4 constant. Should the amount of gas supplied to the drive cylinder 5 change, the bullet firing valve 6 is not reliably opened each time, and the bullet ejection speed fluctuates.

In the second and third oscillator circuits 3B and 3C that oscillate a plurality of trigger pulses, the time intervals of the trigger pulses are adjusted to be constant. This time interval controls the firing time interval for continuously fired bullets. When multiple bullets are fired in succession, typically 1-10 per second
One, preferably 1 to 5 bullets are fired. Therefore,
The time interval of the trigger pulse is usually adjusted to 1 to 0.1 seconds, preferably 1 to 0.2 seconds.

The first, second, and third oscillation circuits are switched by the changeover switch 8 to select which oscillation circuit sends the trigger pulse to the solenoid valve 4. The changeover switch 8 is attached to the gun body in a state where the operation lever is located outside the gun so that it can be operated from outside the gun. When trigger 1 is pulled when the changeover switch is in the A position, 1
When one trigger pulse is sent to the solenoid valve 4 and the trigger 1 is pulled at the position of the operation switch B, a predetermined fixed number of trigger pulses are sent to the solenoid valve 4. When the trigger 1 is pulled at the position of the operation switch C, trigger pulses are continuously sent to the solenoid valve 4 while the trigger 1 is pulled.

As described above, a plurality of sets of oscillation circuits can be switched to adjust the number of trigger pulse outputs when the trigger 1 is pulled once, and the bullet firing state can be selected in various states. However, the present invention does not specify the switching means 3 in this state. For example, the switching means 3 having one of the second and third oscillation circuits is also included. When the trigger 1 is pulled, the switching means 3 having the second oscillating circuit oscillates a predetermined fixed number of trigger pulses, so that a fixed number of bullets are fired each time the trigger 1 is pulled. . Further, the switching means 3 having only the third oscillating circuit fires bullets continuously while the trigger 1 is pulled.

The solenoid valve 4 has one trigger pulse
Opened once. This electromagnetic 4 is connected between the gas source and the drive cylinder 5. When opened, the solenoid valve 4 press-fits into the drive cylinder 5 a gas at a flow rate capable of driving the piston 7 of the drive cylinder 5.

In the fully automatic gas gun shown in FIG. 1, a drive cylinder 5 and a bullet firing valve 6 are integrally connected.
The structure of the drive cylinder 5 and the bullet firing valve 6 is shown in FIG.

The piston 7 of the drive cylinder 5 advances when pressurized gas is supplied from the solenoid valve 4, and when the solenoid valve 4 is closed, the piston 7 is pushed by the return spring 23 and retracts. Therefore, a push spring is used as the return spring 23, which elastically pushes the piston toward the return side.

The bullet firing valve 6 is reciprocated by a plunger 9 which is reciprocated by a piston 7 of a drive cylinder 5, an intermediate sphere 10 which is brought into contact with the surface of the plunger 9 to roll, and an intermediate sphere 10. Link 11, a ball valve 12 that is pressed by the link 11 to open, and a casing 13 that accommodates these.

The plunger 9 is pushed forward by the rod of the piston 7 of the drive cylinder 5 and is pushed backward by the return spring 23. The front end of the rod of the piston 7 is screwed into and connected to the rear end of the plunger 9. Further, the gas hole 15 is axially formed in the center of the tip so that the pressurized gas that has passed through the ball valve 12 in the open state is injected from the tip.
Has been drilled. The gas hole 15 is formed in the radial direction at the rear end, and the outer shape is formed thinner at the rear portion than the gas hole opening portion in the radial direction. The narrow outer portion has a tapered rear end so that the intermediate sphere 10 is pushed out when the plunger 9 is pushed out.

Further, the plunger 9 is provided with grooves at the rear end, the tip and the middle so that gas does not leak between the outer circumference and the casing 12, and the O-ring 16 is inserted into this groove. Has been done.

The casing 12 has a gas supply pipe 17 which is orthogonal to the movement direction of the plunger 9. Supply pipe 1
7 has a valve seat 18 of a ball valve 12 that is narrowed in the middle. The valve seat 18 is provided with an O-ring so that gas does not leak. The ball valve 12 is a push spring 1 which is a coil spring.
With 9, the valve seat 18 is pressed. The rear end of the gas supply pipe 17 is connected to the gas source.

Further, the bullet firing valve 6 shown in FIGS. 1 and 2 is used.
Has a bullet insertion rod 22 at its tip for pushing the bullet 20 into the barrel 21. The bullet insertion rod 22 is tubular and has the plunger 9 inserted from the rear end. Bullet insertion rod 22
Is pushed forward by the plunger 9. Therefore, the push spring 14 is built inside the bullet insertion rod 22,
The pressing spring 14 presses the flange at the tip of the plunger 9.
Further, the tip of the bullet insertion rod 22 is located at a distance from the rear end of the barrel 21, and has a length to push the bullet 20 into the rear end of the barrel 21 when it is advanced by the plunger 9.

The rear end of the barrel 21 is formed of a rubber-like elastic material in a cylindrical shape so that the bullet can be pushed airtightly.

The drive cylinder 5, the bullet firing valve 6, and the bullet insertion rod 22 having this structure repeat the following operations (1) to (5) to eject the bullet from the barrel every time the electromagnetic valve 4 is opened and closed.

When the solenoid valve 4 is opened by the pulse signal of the switching means 3, the piston 7 of the drive cylinder 5 is advanced by gas pressure. The plunger 9 is advanced by the piston 7 of the drive cylinder 5. When the plunger 9 is advanced, the bullet insertion rod 22 is advanced via the pressing spring 14, and the bullet insertion rod 22 pushes the bullet into the rear end of the barrel 21. When the plunger 9 is further advanced, the tapered portion of the plunger 9 pushes out the intermediate ball 10, which pushes the ball valve 12 via the link 11. When the ball valve 12 is pushed (the bullet firing valve 6 is opened), pressurized gas is supplied from the gas source through the center of the plunger 9 to the barrel 21 from the bullet insertion rod 22 and the rear end of the barrel 21. The bullet that has been pushed into is pushed out from the barrel 21 and can be ejected. When the bullet is fired and the solenoid valve 4 is closed, the plunger 9 is retracted by the return spring 23, and the ball valve 12 is moved to the valve seat 18
And the bullet firing valve 6 is closed.

As shown in FIG. 1, with the bullet insertion rod 22 pushing the bullet into the barrel 21, the bullet firing valve 6 opens to push the bullet with gas pressure. You can make bullets fly faster.

Although not shown, the bullet firing valve 6 can be opened to eject the bullet from the barrel without pushing the bullet into the rear end of the barrel. Therefore, the present invention does not specify the portion of the bullet firing valve 6 and the barrel in this structure.

The fully automatic gas gun of this structure operates in the following conditions. When the trigger 1 is pulled, the switching means 3 sends a plurality of trigger pulses to the solenoid valve 4. The solenoid valve 4 is repeatedly opened and closed a plurality of times at regular time intervals by the trigger pulse sent from the switching means 3. The electromagnetic valve 4 causes the piston 7 of the drive cylinder 5 to reciprocate, and the piston 7 opens and closes the bullet firing valve 6. When the bullet firing valve 6 is opened, the pressure of the gas causes the bullet to fire from the barrel.

[0031]

The fully automatic gas gun of the present invention controls the switching means by a trigger, opens and closes the solenoid valve by the trigger pulse generated by the horizontal film means, and further,
The bullet firing valve is opened and closed with this solenoid valve. The switching means oscillates an electrical trigger pulse by the input signal from the trigger switch. The electric trigger pulse oscillation circuit oscillates the trigger pulse at precise time intervals, and the time interval of the trigger pulse can be adjusted extremely easily by adjusting the capacitance or resistance of the capacitor. .

In addition, the trigger pulse is continuously generated while the trigger is pulled, or if the trigger is pulled once, the trigger pulse can be freely set, for example, by oscillating three trigger pulses. The oscillation state of can be controlled. For this reason, it is possible to realize the feature that the firing state of the bullet can be easily and easily controlled by the switching means and can be freely controlled at accurate time intervals.

Furthermore, the switching means does not directly control the bullet firing valve, but controls the solenoid valve with this, and the solenoid valve controls the bullet firing valve. That is, since the switching means indirectly controls the bullet firing valve, it is possible to increase the gas flow rate of the bullet firing valve by using a small valve as the electromagnetic valve controlled by the switching means. For this reason, it is possible to realize a fully automatic gas gun in which the electromagnetic valve consumes less power and the bullets fly well.

Further, it is possible to realize a feature that a mechanism for continuously ejecting bullets is simple, there are few failures, and mass production is possible at low cost.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a fully automatic gas gun of the present invention.

FIG. 2 is a sectional view showing a drive cylinder and a bullet firing valve.

[Explanation of symbols]

1 ... Trigger 2 ... Trigger switch 3 ... Switching means 3A, 3B, 3C ... Oscillation circuit 4 ... Solenoid valve 5 ... Drive cylinder 6 ... Bullet firing valve 7 ... Piston 8 ... Changeover switch 9 ... Plunger 10 ... Intermediate sphere 11 ... Link 12 ... Ball valve 13 ... Casing 14 ... Push spring 15 ... Gas hole 16 ... O-ring 17 ... Supply pipe 18 ... Valve seat 19 ... … Pressing spring 20 …… bullet 21 …… barrel 22 …… bullet pushing rod 23 …… return spring

Claims (1)

[Claims] 1. A trigger 1, a trigger switch 2 which is interlocked with the trigger 1, and a trigger switch 2 which is connected to the trigger 1 at regular time intervals with an input signal from the trigger switch 2. A switching means 3 for generating a plurality of trigger pulses, an electromagnetic valve 4 connected to the switching means 3 and opened / closed by an output pulse signal of the switching means 3, and a pressurized gas source via the electromagnetic valve 4. It is provided with a drive cylinder 5 connected thereto and a bullet firing valve 6 connected to a piston 7 of the drive cylinder 5 and opened and closed by the piston 7, and when the trigger 1 is pulled, the switching means 3
Sends a plurality of trigger pulses to the solenoid valve 4, the solenoid valve 4 is opened and closed at a constant time interval, the solenoid valve 4 reciprocates the piston 7 of the drive cylinder 5, and the piston 7 opens and closes the bullet firing valve 6. , A fully automatic gas gun in which the bullet firing valve 6 is configured to fire a bullet from a barrel.