JPH04327799A - Firing device of bullet in toy gun - Google Patents

Abstract

PURPOSE:To provide a firing device of a toy gun of the lever action or pump action type having simple mechanism and good operability, whereby bullets can be shooted by means of gas such as low pressure gas. CONSTITUTION:A cylinder 2 with a guide collar 3 fixed to the end of one opening thereof is provided movably in the forward and rearward directions in a body of a gun. A gas tank 9 is movably provided in the cylinder 2 spaced a predetermined interval X from the guide collar 3, while a hammer 15 being urged by a spring 14 is provided at the rear of the tank 9 in the cylinder 2. A discharge nozzle 11c of a valve 11 for discharging gas filled in the tank 9 protrudes into the cylinder 2 and a nozzle head 16 having a nozzle 17 for opening and closing a bullet feed port 19 of a chamber 18 is fixed to the end of said nozzle 11c. After the tank 9 and the hammer 15 have been spaced apart by retracting and advancing the cylinder 2, a trigger 6 is operated to cause the hammer 15 to strike the rear face of the tank 9, so that the gas is blown off through the nozzle 17 to shoot a bullet 21 put in a barrel 20.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bullet firing device for a toy gun that uses gas such as compressed air or low-pressure gas, and particularly for a lever-action or pump-action toy gun that uses gas.

0002

[Prior Art] A method in which a piston and cylinder for firing a plastic bullet called a BB bullet are moved back and forth by operating an operating member such as a lever or a grip, thereby loading the bullet into the barrel. Air gun toys are known, for example, from Japanese Utility Model Publication No. 53-28550 (lever action type), Japanese Utility Model Publication No. 54-23431 (pump action type), and the like.

0003

[Problems to be Solved by the Invention] In all of these known gun toys that utilize air pressure, a bullet is loaded into the barrel by operating a lever or grip, and then fixed to the gun body by operating a trigger. A piston installed in a cylinder is moved back and forth by the urging force of a spring, and air in the cylinder is supplied from a nozzle at the tip of the cylinder to behind the bullet loaded in the barrel to fire the bullet.

Therefore, in order to make the bullet fly farther, the amount of air stored in the cylinder must be increased, and
In order to increase the compression pressure, it is necessary to strengthen the spring that biases the piston, so the structure of the gun itself becomes larger, and the spring must have a strong bias, and the impact when firing the bullet is large, causing the bullet to There are many problems that need to be solved in practice, such as a decrease in the accuracy rate.

In view of the current situation, it is an object of the present invention to provide a bullet firing device for a toy gun that is easy to operate and can reliably fire a bullet with a constant amount of gas using an extremely simple mechanism. It is something to do.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the bullet firing device in the toy gun of the present invention is movable back and forth by the operation of a lever or grip in which a guide collar is fixed in the tip opening in the gun body. A cylinder is provided within the cylinder, with a predetermined gap between the cylinder and the guide collar, and a gas tank whose valve holding hole is normally closed by a valve biased by a spring is installed inside the cylinder so as to be freely movable in the axial direction. A hammer mechanism is attached to the rear of the gas tank to strike the gas tank forward in conjunction with a trigger, and a part of the hammer mechanism is attached to the tip of the gas release valve protruding from the valve holding hole, so that a portion of the hammer mechanism is outside the guide collar. It is characterized by a fixed nozzle head that comes into contact with and separates from the side surface and has a nozzle for opening and closing the bullet supply port of the chamber for supplying bullets to the barrel.

In the bullet firing device for a toy gun according to the present invention, the cylinder is a cylindrical one made of metal or synthetic resin, and a ring-shaped guide collar is fixed to the inner circumference of the opening at the tip. A lever for moving the cylinder back and forth is integrally attached to the outer periphery of the upper surface of the rear end opening, and a lever that moves the cylinder back and forth is attached to the center of the lower surface, and a sear that is linked to the trigger is guided into the cylinder from the opening end toward the tip. A slit is formed for this purpose.

The gas tank, which is movably mounted inside the cylinder, has a filling port for filling the gas in a part thereof, and a valve holding hole is provided on the tip surface, and the valve holding hole has a gas discharge hole. The discharge nozzle of the valve is engaged and held in a state where it protrudes toward the cylinder side, and the valve body of the valve located in the gas tank is biased by a spring whose base end is fixed in a spring holder to open the valve holding hole. The section is always closed.

[0009] Inside the cylinder behind the gas tank,
A hammer mechanism is provided to strike the gas tank and advance it. This hammer mechanism includes a guide stopper provided in contact with the rear open end of the cylinder, a spring guide fixed to the guide stopper, a spring whose base end is held by the spring guide, and a tip end of the spring. It consists of a hammer consisting of a bottomed cylindrical body that is held inside and is always urged toward the gas tank side, and a ring-shaped claw is formed on the outer periphery of the opening of the hammer. When the cylinder is moved backward by operating the lever, this pawl engages with a sear that is linked to a trigger provided on the gun body, thereby fixing the hammer against the biasing force of the spring.

[0010] A valve for releasing gas in a gas tank consists of a disc-shaped valve body and a cylindrical discharge nozzle provided at the center of the front surface of the valve body, and the base end of the discharge nozzle is The part is provided with a gas release hole for releasing gas into the barrel. After inserting the release nozzle into the valve holding hole of the gas tank with the valve body positioned inside the gas tank, insert the tip of the nozzle into the cylinder side. The gas discharge hole of the discharge nozzle is always inside the valve retaining hole because the valve body inside the gas tank is urged by a spring to close the barrel retaining hole.

A portion of the distal end of the discharge nozzle protruding into the cylinder is in contact with the outer surface of the guide collar provided within the opening of the cylinder, and there is a space between the inner surface of the guide collar and the distal end surface of the gas tank. A nozzle head is fixed to keep the gap formed constant. The nozzle head is integrally provided with a nozzle that opens and closes a bullet supply port formed in the chamber to supply the bullet into the barrel, and the bullet supply port is always closed by the nozzle. When the cylinder is moved back by operating a lever, the nozzle also moves back to open the bullet supply port, supplying only one bullet into the barrel. The barrel, which is integrated with the chamber, has a rubber packing attached to its base end, and is configured to reliably hold the bullet supplied into the barrel.

0012

[Operation] The bullet firing device in the toy gun of this invention is
A lever-action or pump-action toy gun is equipped with a gas tank for firing bullets.
Since the gas such as compressed air or low pressure gas stored in the gas tank is used as the firing source, the amount of movement of the cylinder by the lever or grip can be reduced. In addition, since the projectile source is gas and the valve is fixed and the gas tank is moved when the gas is released, the valve remains stationary at the moment of gas release and the gas is reliably injected. Furthermore, a spring with a weak bias force can be used to move the gas tank forward after it has moved backwards, so
There is less impact when firing a bullet.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a bullet firing device for a toy gun according to the present invention will be described in detail with reference to the accompanying drawings.

A bullet firing device 1 for a toy gun according to the present invention shows an embodiment of a lever action type toy gun, and includes a cylinder 2 provided in a gun body (not shown) so as to be movable back and forth, and a cylinder 2. A gas tank 9 built into the gas tank 2 and a hammer 1 provided at the rear of the gas tank 9
5, a nozzle head 16 that is provided on the tip surface of the cylinder 2 so as to be able to move toward and away from it, and a chamber 18 that has a barrel 20 that is provided coaxially with the cylinder 2 via the nozzle head 16. It is something that

The cylinder 2 is made of a metal cylindrical body with both ends open, and a ring-shaped guide collar 3 made of synthetic resin is fixed to the inner peripheral surface of the opening at the tip. A lever 4 for moving the cylinder 2 back and forth is integrally attached to the upper surface of the outer periphery of the rear end, and the base end is fixed to the gun body in the center of the lower surface from the open end toward the tip. A guide stopper 5 for holding a spring guide 13 constituting a part of a hammer mechanism, which will be described later, and a slit 8 for positioning a sear 7 interlocking with a trigger 6 inside the cylinder 2 are formed.

The gas tank 9 is made of a metal cylinder whose diameter is slightly smaller than the inner diameter of the cylinder 2 and both end faces are closed. Although not shown, the gas tank 9 is filled with gas such as compressed air or low-pressure gas. The guide collar 3 fixed to the cylinder 2 has a valve holding hole 10 for inserting and holding the valve 11 in the center of the closed end surface (right side in FIG. 1).
It is provided in the cylinder 2 so as to be movable back and forth with a predetermined interval X between the two.

O in the valve holding hole 10 of the gas tank 9
The valve 11, which is airtightly mounted through a ring, is a disk that is constantly pressed by a spring 12a, one end of which is fixed to a spring cap 12 provided concentrically inside the front end surface of the gas tank 9, thereby closing the valve holding hole 10. It consists of a shaped valve body 11a and a cylindrical discharge nozzle 11c having a gas discharge hole 11b at its base end, which is integrally provided in the center of the valve body 11a. Discharge nozzle 11c
The distal end of the gas tank 9 penetrates the valve holding hole 10 and protrudes to the guide collar 3. The distal end of the gas tank 9 is advanced until the distal end surface of the gas tank 9 comes into contact with the guide collar 3, and then the spring 1
When the base end of the discharge nozzle 11c enters the gas tank 9 against the urging force of the discharge nozzle 11c, the gas in the gas tank 9 flows into the discharge nozzle 11c from the gas discharge hole 11b formed at the base end of the discharge nozzle 11c. It is.

The hammer mechanism provided in the cylinder 2 at the rear of the gas tank 9 includes a spring guide 13 fixed to the guide stopper 5, and a spring guide 13 fixed to the guide stopper 5.
The hammer 15 is composed of a spring 14 whose base end is attached to the spring 14, and a hammer 15 made of a bottomed cylindrical body that houses the tip of the spring 14 and is always biased toward the gas tank 9. A ring-shaped claw 15a is integrally formed on the outer periphery of the opening. This pawl 15a engages with the sear 7 which is interlocked with the trigger 6, and sets the gas tank 9 at a predetermined position against the biasing force of the spring 13.

The nozzle headle 16 includes a ring-shaped portion 16a having a contact surface that contacts the outer surface of the guide collar 3 fixed to the inner periphery of the tip of the cylinder 2, and an outer diameter that is approximately the same as the inner diameter of the guide collar 3. A ring-shaped protrusion 16b having A nozzle 17 for opening and closing the bullet supply port 19 is fixed.

The chamber 18 has a cylinder 2 inside the gun body.
It has a bullet supply port 19 and has a base end portion of a barrel 20 fixed therein. This barrel 20 has a base end 20a formed of a material having an appropriate frictional force, such as rubber, in order to hold in a predetermined position the bullets 21 that are supplied one by one into the barrel 20 from the bullet supply port 19. It is something.

The operation of the bullet firing device in the toy gun of the present invention will be explained below with reference to FIGS. 1 to 4. Figure 1
1 shows a state in which the bullet supply port 19 of the chamber 18 is closed by the nozzle 17, and the cylinder 2 and the chamber 18 are in contact with each other via the nozzle head 16. In other words, the hammer 1 installed inside the cylinder 2
Since the claw 15a of No. 5 is not engaged with the sear 7, the hammer 15 is pushed into the gas tank 9 by the biasing force of the spring 14.
is pressed toward the tip opening side of the cylinder 2. Therefore, the gas tank 9 faces the guide collar 3 with a predetermined distance X, and the nozzle 17 of the nozzle head 16 is inserted into the chamber 18 and closes the bullet supply port 19, so that the bullet 21 is inserted into the barrel 20. Not loaded inside. At the same time, since the base end of the discharge nozzle 11c attached to the valve body 11a in the gas tank 9 is located in the valve holding hole 10,
Since the gas discharge hole 11b of the discharge nozzle 11c is closed, the gas in the gas tank 9 is not discharged into the barrel 20.

In such a state, when the cylinder 2 is moved backward by pulling the lever 4 toward the left in the drawing as shown in FIG. and the hammer 15 located behind it move back to the left while compressing the spring 17 against the biasing force of the spring 14, and the claw 15a formed on the hammer 15 protrudes into the cylinder 2. 7 and holds the hammer 15 inside the rear of the cylinder 2. At the same time, the discharge nozzle 1 of the gas tank 9
Since the nozzle 17 fixed to the nozzle head 16 integrally attached to 1c also moves back, the bullet supply port 19 of the chamber 18 is opened, and one bullet 21 is delivered to the chamber 18.
supply within. As the cylinder 2 retreats, the gap X formed between the guide collar 3 and the front surface of the gas tank 9 disappears, but as shown in FIG. A gap x having the same width as X is formed between the outer surface of the guide collar 3 and the nozzle head 16.

Next, as shown in FIG. 3, while keeping the hammer 15 engaged with the sear 7 that is linked to the trigger 20, that is, fixed at the rear position within the cylinder 2, the lever 4 is operated to move the cylinder. 2 to the right, the guide collar 3 fixed to the tip opening of the cylinder 2
moves forward while pressing the nozzle head 16 to the right, so the gas tank 9, which is interlocked with the nozzle head 16 via the discharge nozzle 11c, also moves forward. At the same time, the nozzle head 16
The nozzle 17 fixed to also moves forward and approaches the chamber 18, and the nozzle 17 enters the chamber 18 and closes the bullet supply port 19 to prevent the next bullet 22 from being supplied into the chamber 18. The bullet 21 in the chamber 18 is set in the base end 20a of the barrel 20. At this time, in the final forward position, the cylinder 2, nozzle head 16, and chamber 18 are in contact with each other, so the gap x disappears, and a predetermined distance between the front surface of the gas tank 9 and the inner surface of the guide collar 3 An interval X is formed.

When the trigger 6 is pulled in the state shown in FIG. 3, the sear 7, which is interlocked with the trigger 6, rotates downward about the shaft and disengages from the pawl 15a of the hammer 15. The hammer 15 disengaged from the sear 7 moves to the spring 1
It moves forward by being pushed to the right by the biasing force of cylinder 2.
The gas tank 9 is struck at the rear surface of the gas tank 9, which faces the guide collar 3 at a predetermined distance X. This impact moves the gas tank 9 forward by the distance X. As a result, the base end of the discharge nozzle 11c constituting the valve 11 is connected to the valve body 11.
In order to enter the gas tank 9 against the biasing force of the spring 12a that biases the gas, the gas discharge hole 11b formed at the base end of the discharge nozzle 11c opens, and the gas in the gas tank 9 is released as indicated by the arrow. As the gas is ejected from the discharge nozzle 11c into the nozzle 17 and gas pressure is applied behind the bullet 21 set at the base end of the barrel 20, the bullet 21 overcomes the frictional force of the base end 20a of the barrel 20. barrel 2
Fired from the tip of 0. Since the gas pressure in the nozzle 17 disappears at the same time as the bullet 21 is fired, the valve body 1 of the valve 11
1a is pushed forward again by the biasing force of the spring 12a and closes the opening of the valve holding hole 10, and the discharge nozzle 11c also moves toward the chamber 18, and the gas discharge hole 11b formed at the base end closes the opening of the valve holding hole 10. The holding hole 10 is closed by the inner circumferential surface, the supply of gas from the gas tank 9 to the nozzle 17 is cut off, and each member returns to the state shown in FIG. 1 again to prepare for the next operation.

[0025] By repeating such an operation, a bullet is fired one by one. In the above embodiment, the cylinder 2 is moved forward and backward by manual operation of the lever 4, but this is done by an appropriate mechanism. Of course, it can be automated. The spring 14 constituting the hammer mechanism also has a guide stopper 5 whose base end is fixed inside the gun body.
A spring guide 13 whose tip end is positioned in the cylinder 2 through the slit 8 and fixed to the guide stopper 5
However, the guide stopper 5 may be directly fixed within the cylinder 2, and the structure of the bullet firing device is not limited to the embodiment. The bullet firing device 1 for a toy gun of the present invention has a gas tank 9 movably provided in the cylinder 2 such that a predetermined distance X exists between the front surface of the gas tank 9 and the inner surface of the guide collar 3. Therefore, by changing the width of this gap X, the amount of gas ejected can be controlled.

[0026]

[Effects of the Invention] The bullet firing device for a toy gun of the present invention uses gas to fire bullets for lever-action or pump-up toy guns, but unlike conventional toy guns, the gas tank is fixed. Since the valve for gas discharge is fixed without any gas discharge, the valve remains stationary during gas discharge, and the gas can be reliably spouted into the chamber. In addition, the hammer mechanism for returning the moving gas tank to its original position can be implemented using a spring with a weak biasing force, which reduces the impact when the bullet is fired and greatly improves the probability of hitting the target. Further, the gas for firing the bullet can be controlled by adjusting the distance between the front surface of the gas tank and the guide collar provided in the opening at the tip of the cylinder when the gas tank is set in the cylinder. moreover,
Since the cylinder can be arranged coaxially with the barrel, the gas flow path can be provided in the shortest possible length, and gas can be used efficiently, which has many advantages.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing one embodiment of a bullet firing device for a toy gun of the present invention, showing a state in which a barrel is not loaded with a bullet.

FIG. 2 is a longitudinal cross-sectional view showing a state in which the lever is operated to retract the cylinder in order to load a bullet into the barrel.

FIG. 3 is a longitudinal cross-sectional view showing a state in which the retracted cylinder is returned to its original state and a bullet is loaded into the base end of the barrel.

FIG. 4 is a longitudinal sectional view showing a state in which the trigger is pulled to operate the hammer mechanism and fire a bullet.

[Explanation of symbols]

1 Bullet launcher 2 Cylinder 3 Guide color 4 Lever 6 Trigger 7 Sheer 9 Gas tank 11 Valve 11a Valve body 11b Gas release hole 11c Discharge nozzle 12 Spring cap 12a Spring 13 Spring guide 14 Spring 15 Hammer 15a Claw 16 Nozzle head 17 Nozzle 18 Chamber 19 Bullet supply port 20 Barrel 21 Bullet X Gap x Gap

Claims (6)

[Claims] 1. A cylinder is provided in the gun body which is moved back and forth by the operation of a lever or a grip to which a guide collar is fixed in the distal end opening, and a predetermined gap is provided between the cylinder and the guide collar so that the valve can be opened. A gas tank whose holding hole is always closed by a valve biased by a spring is installed inside the gas tank so as to be freely movable in the axial direction, and a hammer mechanism is installed at the rear of the gas tank to strike the gas tank and move it forward in conjunction with a trigger, At the tip of the gas release valve protruding from the valve holding hole, a part thereof comes into contact with and separates from the outer surface of the guide collar, and for opening and closing the bullet supply port of the chamber for supplying bullets to the barrel. A bullet firing device for a toy gun, characterized in that a nozzle head equipped with a nozzle is fixed. 2. The cylinder is a cylindrical body made of metal or synthetic resin, and has a ring-shaped guide collar fixed to the inner periphery of the tip opening, and a ring-shaped guide collar fixed to the outer periphery of the upper surface of the rear end opening. The lever that moves the cylinder back and forth is
2. A toy gun according to claim 1, wherein a slit is formed in the center of the lower surface for guiding a sear interlocking with a trigger into the cylinder from the open end toward the tip. launcher. 3. The gas tank has a filling port for filling gas in a part thereof, and a valve holding hole is provided on the distal end surface, and a discharge nozzle of the valve is made to protrude toward the cylinder side from the valve holding hole. 2. The valve body of the valve located in the gas tank is biased by a spring whose base end is fixed in a spring holder so that the opening of the valve holding hole is always closed. A bullet firing device in a toy gun. 4. The hammer mechanism includes a guide stopper provided on the rear open end side of the cylinder, a spring guide fixed to the guide stopper, a spring whose base end is held by the spring guide, and The hammer consists of a bottomed cylindrical body that holds the tip of the spring inside and is always biased toward the gas tank.A ring-shaped claw is formed on the outer periphery of the opening of the hammer. Claim characterized in that when the cylinder is retreated by operating the lever, the pawl engages with a sear that is linked to a trigger provided on the gun body, thereby fixing the hammer against the biasing force of the spring. 1. A bullet firing device for a toy gun according to 1. 5. The distal end of the discharge nozzle protruding from the valve holding hole of the gas tank has a portion thereof in contact with the outer surface of a guide collar provided in the opening of the cylinder, and the inner surface of the guide collar and the gas tank A nozzle head is fixed to maintain a constant gap between the nozzle head and the tip surface of the nozzle, and a nozzle that opens and closes a bullet supply port formed in the chamber to supply bullets into the barrel. 2. The bullet feeding port according to claim 1, wherein the nozzle is integrally provided with a cylinder that moves back and forth by operating a lever to open and close the bullet supply port of the chamber. Device. 6. The toy according to claim 1, wherein the width of the gap formed between the inner surface of the guide collar provided on the cylinder and the distal end surface of the gas tank is adjustable. A bullet firing device in a gun.