JPH0416715B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to an automatic rifle type model gun, and more specifically to a model gun that uses gas pressure, such as Freon gas, to load, fire, and eject a bullet. Concerning an automatic rifle model gun that can be used as a weapon.

(b) Prior art A model gun that fires a bullet using Freon gas is already well known, but the gas is used to move the bolt backwards and then forward to eject and load the cartridge. There is still no commercially available product that allows continuous processing.

(c) Problems to be solved by the invention In conventional model guns of this type, the next bullet is automatically loaded either by using the explosive force of the gunpowder that fires the bullet, or manually. , those that utilized gas pressure were limited to firing bullets.

(d) Means for solving the problem Therefore, in the present invention, the first
As a result of pulling the stage, the engagement between the trigger 7 and the hammer 13 is released, and the hammer 13 pivots forward at once due to the spring force, applying an impact to the hammer interlocking plate 18, which causes the valve 19 to release the hammer 13 from the spring force. The first gas storage tank 1 is opened momentarily against the
The compressed gas in the cartridge 6 passes through the center hole of the cartridge 6 loaded into the chamber 5 through the ejection pipe 20 to fire a bullet, and the trigger actuating rod 9 is activated by the second pull operation of the trigger 7. through valve 31
When it is opened, gas pressure from the second storage tank 16' is sent to the cylinder 29, the piston 28 moves back, and the slide member 3 is pushed back. At the same time, the bolt 23 moves back and the cartridge 6 in the chamber 5 is ejected. While being engaged and pushed back by the tractor 24 and ejecting the cartridge 6 to the outside by the protrusion of the ejector 25,
By opening the trigger 7 at the same time as the second stage pulling operation is completed, the valve 31 is closed as the trigger actuating rod 9 moves backward, and the gas pressure in the cylinder 29 is released, causing the piston 28 to be moved by the spring force. , the slide member 3 also returns forward due to spring force, and the uppermost cartridge 6 of the magazine 2 is pushed out and loaded into the chamber 5.

Hereinafter, the gist of the present invention will be explained based on embodiments shown in the drawings.

(E) Embodiment Figure 1 is a partially cutaway plan view of the model gun of the present invention.
FIG. 2 is also a partially cutaway side view, along with a bottom view A showing the valve mechanism of the second tank portion.

FIG. 3 is an exploded perspective view of the main parts of the trigger mechanism.

In the drawings, reference numeral 1 collectively refers to the model gun of the present invention, in which a magazine 2 is attached and a slide member 3 is attached to a lever 3.
The slide member 3 is shown in a pulled state through the spring 4, and is configured to load the uppermost cartridge 6 of the magazine 2 into the chamber 5.

This forward position is the rest position of the slide member 3 when not in use, and it is always in this position (14th position).
(Illustrated). Reference numeral 7 denotes a trigger, which is connected to a trigger actuating rod 9 via a circular head 7a that is pivotally supported 8 on the trigger 7.

10 is a reverse hook, whose long hole 10a is connected to the trigger 7 via a shaft 11, the lower claw 10b is opposed to the spring 12 housed in the trigger 7, and the rear claw 1 is connected to the trigger 7 via a shaft 11;
0c is opposed to the stepped portion 7b of the trigger 7, and the front pawl 10d is opposed to the stepped portion 13a of the hammer 13 (as shown in the third figure).

The hammer 13 is supported by a shaft 14 provided at a fixed portion on the gun side, and is given a tendency to rotate clockwise in the figure by a spring 15.

It also has a forked head portion 13b to avoid collision with a gas ejection pipe 20, which will be described later.

Next, 16 is a first gas storage tank, which is installed near the grip 1a of the model gun 1, and the injection valve 16a is oriented upward and downward in the figure, but it is turned upside down when injecting gas (Freon gas). A valve 19 for opening and closing the passage 17 to the jet pipe 20 is provided in the first tank 16, and a hammer interlocking plate 18 for operating this valve 19 is provided in the tank 16.
It is located along one side of the

The valve 19 is moved by the spring 2 due to the impact of the hammer 13 facing the protrusion 18a provided on the interlocking plate 18.
It is designed so that it resists the elasticity of 1 and is momentarily released.

By this opening, gas is ejected through the ejection pipe 20, the chamber 5, the gun barrel 22, and the muzzle 22a, and the bullet 6a held elastically at the tip of the cartridge 6 is ejected.

Next, loading of the cartridge case 6 into the chamber 5 is performed using the bolt 23, and a projection 23a (shown in the third figure) is provided on one side of the cylindrical shape.
a is fitted into the recess 3b of the slide member 3, and the ram 3
The bolt 23 is moved by manually pulling a and by retracting the slide member 3 due to gas pressure, which will be described later.
The cartridge also moves backward, and the next moment it is moved forward by the spring 4, and the uppermost cartridge case 6 of the magazine 2 is moved forward at the tip of the bolt 23.
At the same time, the spring 24a built in the bolt 23 and the hook 24b are pushed out and pushed into the chamber 5.
An extractor 24 consisting of the following is locked in the annular groove 6b of the cartridge case 6 (as shown in the fifth figure).

This locking is achieved by pulling out the cartridge case 6 from the chamber 5 when the bolt 23 retreats, as will be described later, and by cooperating with an ejector 25 consisting of a spring 26 and a floating protrusion 27 shown in FIGS. 7 and 8. The cartridge 6 is ejected to the outside as shown.

This ejector 25 is in contact with the lower surface of the bolt 23 and is in the depressed position as shown in the sixth figure.
When the cartridge moves rearward as shown in the eighth figure, it moves upward along the diagonally cut groove 23b at the front end of the bolt 23, hits the rear end of the cartridge case 6, and the seventh,
8 As shown in the figure, the cartridge case 6 is ejected to the outside.

As described above, the cartridge case 6 containing the bullet 6a is loaded into the chamber 5 to complete the firing state, and can be fired at any time by pulling the trigger 7 described above.

Next, in order to fire the bullet 6a, the valve 19 is momentarily opened by the impact of the hammer 13 caused by the spring 15 as described above (as shown in the fourth figure) by the first stage pulling operation of the trigger 7. The bullet 6a is fired, and then the bolt 23 is moved back as follows.

That is, the second gas storage tank 1 is located along the gun barrel 22.
6', and a cylinder 29 with a piston 28, which communicates via a passage 30 with a second gas-containing tank 16', with a valve 31 closing the tank 16'.

This valve 31 includes an operating rod 32 and a link lever 3.
The link lever 33 is connected to the tip of the trigger actuating rod 9 via the link lever 33, and the link lever 33 is provided with an elongated hole 33a to provide some play.

Then, by pulling the second stage of the trigger 7, the valve 31 is pushed open via the trigger actuating rod 9 and the link lever 33, and gas is forced into the cylinder 29 at once (Fig. 6A).
is pushed back against the spring 34 as shown in the seventh and eighth figures, causing the piston rod 28a to protrude to the rear of the cylinder 29.

This piston rod 28a is connected to the piston rod release element 3.
5, the bolt 23 is connected to the slide member 3 to move the member 3 backward, and at the same time, the bolt 23 is also moved back via the protrusion 23a.

As shown in the enlarged perspective view of FIG. 9A, the release element 35 is composed of a step portion 35a and a flat portion 35b, and a spring 36 is disposed within the groove 35c of the step portion 35a.
The protrusion 3 of the slide member 3 shown in the third figure
c, and the piston rod 2
The tip of the slide member 8a is brought into contact with the stepped part 35a, but during the second half of the movement of the slide member 3, the flat part 35b is brought into contact with the raised part 37 on the gun side, and the release element 3 is brought into contact with the flat part 35b.
5 as a whole as shown in Fig. 9B, and remove the piston rod 2.
The tip 8a is made to slide on the flat part 35b and protrude.

Next, a cylinder 2 is located between the passage 30 between the cylinder 29 and the second gas storage tank 16'.
A valve 38 for discharging compressed gas in the trigger 7 is provided, and its actuating rod 39 faces an actuator 41 on the trigger actuating rod 9 via a link lever 40 to release the traction force of the second stage of the trigger 7. Therefore, when the trigger actuating rod 9 moves back due to the spring 42, the actuator 41 pushes the link lever 40 counterclockwise in the figure around the shaft 43 to open the valve 38 and reduce the gas pressure in the cylinder 29. is discharged to the outside through the passage 30.

Therefore, the slide member 3 is moved forward together with the bolt 23 by the spring 4 to push out the cartridge 6 from the magazine 2 and load it into the chamber 5, and the valve 38 is placed in the open state, but the trigger 7 1
It is designed to be closed by pulling the step.

In addition, 43 is an injection valve, 44 is an optical sight, 45 is an optical sight, 46 is an air discharge hole of the cylinder 29, and 47 is a magazine spring.

(F) Function In the model gun of the present invention having the above configuration, first the magazine 2 is attached as shown in the second figure, and the ram 3 is attached.
If you pull a backward manually, the bolt 23 will open as shown in the figure.
As a result, the hammer 13 is rotated counterclockwise in the figure against the spring 15, and the front claw 10d of the reverse hook 10 engages with the stepped portion 13a of the hammer 13 to prevent the hammer 13 from moving back. Even if the slide member 3 and the bolt 23 are moved back forward by the spring 4 due to the release of the lever 3a, the hammer 13 remains locked in substantially the same state; The cartridge 6 is fed as shown and loaded into the chamber 5 as shown in the fifth and sixth figures.

In this state, preparation for launch is completed.

At this time, it goes without saying that the first gas storage tank 16 and the second gas storage tank 16' are each filled with Freon gas in advance.

Further, the annular groove 6b of the cartridge 6 loaded in the chamber 5
As shown in FIG. 5, an extractor 24 is suspended on the.

In this state, the trigger 7 fires. First, as shown in the fourth figure, by pulling the trigger 7 in the first stage, the trigger 7 is rotated as shown by the arrow in the figure. As a result of the disengagement between the front claw 10d of the reverse hook 10 and the stepped portion 13a of the hammer 13, the hammer 13 is rotated clockwise all at once around the shaft 14 by the spring 15 as shown in the fourth figure. In order to apply an impact to the protrusion 18a of the hammer interlocking plate 18, the interlocking plate 18 momentarily moves as shown by the arrow in FIG. 4 and opens the valve 19, so that the gas in the first gas storage tank 16 is Passage 17, jet tube 2
0, the bullet 6a is fired through the center hole of the cartridge 6 through the barrel 22 (as shown in the fourth figure).

That is, the firing of the bullet is completed by the first trigger operation, and the reciprocating movement of the bolt 23 is performed by the second trigger operation.

Following the above-mentioned first stage trigger operation, the second
By pulling the stage (as shown in the sixth figure), the circular head 7a is moved in the direction of the arrow, and the trigger actuating rod 9 is moved.
In order to move the trigger to the right, the valve 31 is opened by the actuating rod 32 via the link lever 33, and gas pressure is sent to the cylinder 29. Immediately before the valve 31 is opened, the trigger actuating rod 9 is activated. Since the valve 38 is closed by its own spring elasticity so that the child 41 releases the pressing force against the link lever 40, the gas in the second gas storage tank 16' is reliably sent to the cylinder 29, and the piston 28 is Move up and to the left.

The piston rod 28a of the piston 28 has its tip inserted into the slide member 3 via the piston rod release element 35.
Since the slide member 3 is in contact with the ejector 25, the slide member 3 is pushed back, and the bolt 23 is also pushed back as the ejector 24 grips the cartridge case 6 in the chamber. 8 As shown in the figure, the cartridge casing 6 is splashed to the outside.

Further, as the bolt 23 retreats, the hammer 13 is tilted and the trigger mechanism returns to the state shown in FIG. 9 is moved to the left in the figure by the spring 42, the pressing force by the actuator 41 is applied to the link lever 40.
is applied to the actuating rod 39 of the valve 38 again through the
As a result of pressing this to the right in the figure, the valve 38 is opened and the gas pressure in the cylinder 29 is released to the outside through the passage 30. As a result, the piston 28 moves back by the spring 34, and the slide member 3 also springs. 4, the cartridge 6 is simultaneously loaded into the chamber 5, and preparations for the next firing are completed.

(G) Effects of the Invention As described above, according to the present invention, there is provided a gas storage tank provided as a part of the model gun for firing this type of model gun, loading the chamber from the magazine, and discharging the chamber from the chamber. In the past, it was thought that the bullet could be fired by gas pressure, but except for the initial preparation stage, the trigger operation was the only way to load and eject the cartridge using gas pressure. Since it can be carried out continuously, it is possible to reliably eliminate the danger of gunpowder, and it is also comfortable to use, extremely easy to operate, and has excellent characteristics as a model gun that utilizes gas pressure.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway plan view showing an embodiment of the model gun of the present invention, Fig. 2 is a partially cutaway side view thereof, and Fig. 2A is a bottom view of the main part showing the state in which the slide member is pulled. , Fig. 3 is an exploded perspective view of the main parts showing the trigger mechanism, Fig. 4 is a partially cutaway side view showing the state of the first stage trigger operation of the gun, and Fig. 4A is a plan view of the main parts. Fig. 4B is a bottom view of other important parts, Fig. 5 is a partially cutaway plan view showing the state of connection between the cartridge case and bolt, Fig. 6 is a partially cutaway side view, and Fig. 6A
7 is a partially cutaway bottom view of the same essential parts, showing the valve mechanism of the second gas storage tank, FIG. 7 is a partially cutaway plan view showing the cartridge discharge state, FIG. 8 is a partially cutaway side view, Figure 8A is a partially cutaway bottom view of the main part, Figure 9A
9B is an enlarged perspective view of the piston rod releaser showing the engaged state with the piston rod, FIG. 9B is an enlarged perspective view showing the unlocked state, and FIG. 10 is the slide member and the second gas accommodation in the bolt. Fig. 11 is a partially cutaway side view showing the retracted state by the tank, Fig. 11A is a partially cutaway bottom view of the same main part, and Fig. 12 is a gas pressure of the second gas storage tank. FIG. 13A is a partially cutaway plan view showing a state in which the slide member and the bolt that have been sent rearward are pulled back by the spring force; FIG. 13A is a side view thereof; FIG. 13A is a bottom view of the main parts; FIG. 14 is a partially cutaway side view of the launch preparation completed, and FIG. 14A is a bottom view of the main parts. 1... Model gun, 2... Magazine, 3... Slide member, 3a... Ram, 5... Chamber, 6... Cartridge, 7... Trigger, 13... Hammer, 16... First gas storage Tank, 16'... Second gas storage tank, 18... Hammer interlocking plate, 23... Bolt.

Claims (1)

[Scope of Claims] 1. A magazine 2 that vertically stores a cartridge 6 that holds a bullet 6a at its tip and is biased upward by a spring force, and a cartridge 6 at the top of the magazine 2 that is connected to the front of the magazine 2. A first gas storage tank 16 has a bolt 23 for extrusion and loading into a chamber 5 provided therein, and a slide member 3 engaged with the bolt 23, and is opened and closed by a valve 19 biased forward by a spring force. Then, the gas ejection pipe 20 connected to the first gas storage tank 16 via the valve 19 and inserted into the slide member 3 with its tip open to the chamber 5, and the hammer interlocking plate 18 interlocked with the valve 19 are struck forward. In a configuration including a hammer 13 that rotates backwards against a spring force and a trigger 7 that freely engages and disengages the hammer 13, the first pull operation of the trigger 7 causes the trigger 7 and the hammer 13 to engage and disengage. As a result of the disengagement, the hammer 13 pivots forward at once due to the spring force, giving an impact to the hammer interlocking plate 18, which momentarily opens the valve 19 against the spring force, and this opening causes the first Gas storage tank 1
The compressed gas in the cartridge 6 passes through the jet tube 20 and the center hole of the cartridge 6 loaded into the chamber 5 to fire a bullet, and the trigger operating rod 9 connected to the trigger 7 moves rearward. A valve 3 connected to a mechanism that closes by moving forward and opens by moving forward.
1, a cylinder 29 that communicates with the tank 16' through a valve 31, and a cylinder 29 that is urged in the forward direction by a spring force and connected to the rear slide member 3. a piston 28 having a piston rod 28a, an extractor 24 that engages with the annular groove 6a at the rear end of the cartridge case 6 and pulls the cartridge case 6 out of the chamber 5 as the bolt 23 retreats; In a configuration having an ejector 25 that comes into contact with the rear end and operates to protrude and eject the cartridge case 6 to the outside, when the valve 31 is opened via the trigger actuating rod 9 by the second stage pulling operation of the trigger 7, the second stage Gas pressure from the storage tank 16' is sent to the cylinder 29, the piston 28 moves back, and the slide member 3 is pushed back. At the same time, the bolt 23 moves back and the cartridge case 6 in the chamber 5 is engaged by the extractor 24. Then push it back and the ejector 25 protrudes to release the cartridge 6.
While discharging the gas to the outside, by opening the trigger 7 at the same time as the second stage pulling operation ends, the valve 31 is closed as the trigger operating rod 9 moves backward, and the gas pressure inside the cylinder 29 is released. The spring force causes the piston 28 to move back, and the slide member 3 also returns forward due to the spring force, so that the magazine 2
An automatic rifle type model gun characterized in that the uppermost cartridge 6 of the automatic rifle is pushed out and loaded into the chamber 5.