JPH0150840B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a blowback type toy gun that fires bullets by ejecting compressed gas.

BACKGROUND TECHNOLOGY There are two ways to fire a bullet in this type of toy gun: one is by the spring force of a spring, and the other is by a jet of compressed gas.The latter is superior in that it can be fired far with strong force. Generally, it is based on the method. In the method of firing bullets by ejecting compressed gas, the shell of the cartridge is used as a cylinder case, and a piston that is strongly urged forward by a coil spring is housed inside the cylinder case. By pressing the piston from the front of the cartridge, it moves backwards inside the cartridge and locks the coiled spring in a compressed state.The lock is released by pulling the trigger. Remove it, use the elastic force of the coil spring to force the piston forward,
A bullet held at the tip inside the cartridge is fired using the force of air.

Problems to be Solved by the Invention In the toy gun that fires a bullet using the force of an air piston provided in the cartridge, there is a natural limit to increasing the elastic force of the coil spring provided in the cartridge. Therefore, it was not possible to increase the firing power of the bullet fired from the cartridge. It was also difficult to recover the cartridge after the bullet was fired. For this reason, it is possible to consider a method in which a cylinder is disposed inside the toy gun body and a bullet positioned at the base end of the gun barrel is fired by jetting air from the tip of the cylinder, without using a cartridge. In this case as well, there is a natural limit to the strength of the coil spring housed in the cylinder, and the stronger the coil spring, the stronger the force required to move the slide member backward in order to compress the coil spring. There was a problem in that it was difficult to set the settings for each firing.

The present invention has been made for the purpose of solving the above-mentioned conventional problems.

Means for Solving the Problems The present invention provides the following features: by advancing and retracting the slide member,
A bullet is supplied from the magazine to the base end of the barrel, and by operating the trigger, a communication hole to the injection port of the compressed gas storage chamber containing compressed gas is opened, and the compressed gas is injected from the injection port. In a blowback type gun toy that fires bullets, a cylinder is disposed within the gun jacket, and the compressed gas storage chamber is formed between a piston slidably attached to the cylinder and one end surface of the cylinder. At the same time, the communication hole is provided on one end surface side of the cylinder, and an on-off valve for opening and closing the communication hole is arranged in the compressed gas storage chamber, and when compressed gas is introduced into the compressed gas storage chamber, the piston is moved by the pressure. The slide member moves against the spring force of a moving spring to advance a slide member connected to the piston, and pressurizes the on-off valve to close the communication hole. is equipped with an actuating rod that extends in the direction of piston movement,
A hammer member that is engaged with the trigger is disposed on the tip side of the actuating rod, and a hammer pressing force having a smaller spring force than the piston movement spring is disposed between the hammer member and the gun jacket. A spring is arranged, and when the trigger is pulled, the hammer member, operating rod, and opening/closing valve are pressed by the spring force of the spring for pressing the hammer, opening the communication hole, and compressing the compressed gas storage chamber. Gas is injected from the jet port, and as the pressure in the compressed gas storage chamber decreases due to the injection, the piston moves toward the compressed gas storage chamber by the spring force of the piston movement spring, presses the on-off valve, and opens the communication hole. When closed, the hammer member is locked to the trigger.

Operation When the trigger is pulled, the locking of the hammer member in the retracted position is released, and the hammer member is pushed forward by the hammer pressing spring and strikes the end of the actuating rod, opening the on-off valve, thereby releasing compressed gas. The compressed gas in the compressed gas storage chamber of the cylinder, which is in communication with the gas outlet of the storage container and is filled with pressurized gas, is injected into the gun barrel and the bullet is fired, and at that instant the pressure in the compressed gas storage chamber decreases. The piston moves under the action of the piston movement spring and pushes the opening/closing valve, and the hammer member is moved back and forth while contracting the hammer pressing spring via the actuating rod, and is then once locked in the retreated position, opening and closing at the same time. The valve closes the communication port leading from the compressed gas storage chamber to the gun barrel, so that the compressed gas storage chamber is filled with compressed gas, and the piston is moved while compressing the spring for pressing the piston, and is connected to the piston. Move the slide member forward.

Embodiments Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.

Each figure shows the internal mechanism of the gun toy by dividing the jacket 1 into left and right parts. 2 is the gun grip part, 3 is the gun shoulder part, 4 is the gun barrel extending forward from the gun shoulder part 3, and 5 is the gun barrel 4. 9 is a trigger, and 6 is a container filled with a liquid gas 10 such as Freon as an example of compressed gas, which is disposed inside the gun grip 2. .

The configuration of each part will be explained in order.

The slide member 5 is provided so as to cover the outside of the gun barrel 4 which is integrally provided on the upper part of the gun jacket 1. A guide hole 7 is provided at the tip of the slide member 5.
is formed, and this guide hole 7 is slidably fitted into a cylindrical guide member 8 attached to the tip of the gun barrel 4. A space 11 for loading a magazine is formed between the upper side of the gun barrel 4 and the inside of the slide member 5. In the space 11, a cylindrical magazine storage case 12 is fixed to the upper part of the gun barrel 4, and a cylindrical magazine 13 can be taken in and out from the opening at the tip of the storage case 12.

The magazine 13 is constructed by inserting an arcuate plate-shaped stopper 13b having approximately the same curvature as the cylindrical portion 13a from the rear end of the cylindrical portion 13a, as shown in FIG. A pin 14 that stops the bulging portion 13c at the rear end against the rear end of the cylindrical portion 13a and passes through the stopper 13b and the cylindrical portion 13a.
Both are fixed. On the other hand, a bullet passage hole 15 and a shutter guide hole 16 are formed at the rear of the lower part of the cylindrical portion 13a, and inside the cylindrical portion 13a,
A cylindrical portion 13a along the shutter guide hole 16
A shutter plate 17 that opens and closes the bullet passage hole 15 by sliding in the front-rear direction (lengthwise direction) is attached. A guide claw 17a is provided at the rear end of the shutter plate 17, and the guide claw 17a is inserted into the shutter guide hole 16. The tip of this guide claw 17a is the cylindrical portion 13a.
When the magazine 13 is inserted through the opening at the rear end of the storage case 12 as shown in FIG. The shutter plate 17 is pushed back to open the bullet passage hole 15. Further, an engaging piece 17b stands up from the upper surface of the shutter plate 17, and is pushed forward and abuts against the tip of a spring 18 housed in a recess 13d provided in the stopper 13b. The tip of the stopper 13b is formed as a bullet guide slope 13e whose rear side is inclined downward. Then, the tip of the cylindrical portion 13a is slightly tilted so that the tip thereof is slightly lifted, and a plurality of bullets 1 are inserted from the tip of the cylindrical portion 13a.
9, and insert the magazine 13 from the rear end opening of the storage case 12 as shown by the arrow in FIG. Therefore, the rear end of the slide member 5 is also open.

At this time, the bullet pressing member 21 at the tip of the spring 20 provided inside the storage case 12 presses against the magazine 1.
The bullet enters into the cylindrical portion 13a of No. 3 and pushes the bullet 19 backward. The base end of the spring 20 is fixed to a locking portion 22 provided at the inner bottom of the storage case 12. Then, as shown in FIG.
When the cylindrical portion 13a is inserted for a predetermined length into the housing, the claw 17a of the shutter plate 17 hits the rear edge of the storage case 12 as described above, and by further pushing the cylindrical portion 13a, it is removed relative to the cylindrical portion 13a. , the shutter plate 17 retreats, and its tip touches the cylindrical portion 13a.
The bullet insertion hole 15 is opened. Also, at this time,
Since the bullet insertion hole 15 and the bullet insertion hole 4a provided in the upper part of the gun barrel 4 are aligned with each other, the bullet 19 in the magazine 13 pushed by the extrusion member 21 is continuously inserted into the gun barrel via the guide slope 13e. Sent into 4.

A bullet pushing rod 24 controls the bullet 19 entering the gun barrel 4 through the bullet insertion holes 15, 4a. The bullet pushing rod 24 is integrally provided inside the rear end of the slide member 5 with a screw 24a.
As the slide member 5 moves backward, the base end inside the gun barrel 4 moves backward. 1 and 5 show the state in which the bullet pushing rod 24 is retracted together with the slide member 5, and at this time, its tip has retreated to the rear of the bullet insertion holes 15, 4a, and therefore the magazine 13 The bullet 19 inside is automatically fed through the insertion holes 15, 4a and is located in front of the bullet pushing rod 24. Note that 25 shown in Figure 1 is bullet 1.
This is a rubber raised member provided inside the barrel 4 to prevent the barrel 9 from rolling.

Next, when the bullet pushing rod 24 moves forward together with the slide member 5, its tip pushes the bullet 19 and moves it from the position shown in FIG. 2 to the position shown in FIG. 3. A rubber annular member 26 is also provided at the position shown in FIG. 3 to prevent the bullet 19 from rolling. The bullet 1 is located inside the gun barrel 4 at the position shown in FIG.
A tip opening 27a of a gas ejection tube 27, which is an example of a compressed gas, is opened at a position slightly rearward of 9.

The other end of the gas ejection pipe 27 communicates with a compressed gas storage chamber 28 of the cylinder 29 . cylinder 29
is arranged at the lower part of the gun barrel 4, and the piston 30 is connected to the slide member 5 via a connecting member 31. Inside the cylinder 27 is a spring receiving member 31a.
A spring 32 for moving the piston is stored through the spring 32, and the tip of the spring 32 presses against the back surface of the spring receiving member 31a of the piston 30 and the connecting member 31. Therefore, the right side of the piston 30 in each figure One end of the connecting member 31, which is biased in the horizontal direction, and the mounting wall 5a of the slide member 5 are coupled with a screw 33.

34 is an on-off valve, and a communication hole 35 between the compressed gas storage chamber 28 of the cylinder 29 and the gas ejection tube 27
Open and close. 36 is an O-ring. Open/close valve 34
An actuating rod 37 provided in the gas ejecting tube 27 hermetically penetrates a part of the gas ejecting tube 27 and protrudes rearward, and its rear end is close to the striking portion 38a of the hammer member 38. The hammer member 38 has an H-shaped side cross section, and the guide portion 4
0, and the striking part 38
The back surface of a is pressed by a hammer pressing spring 39 which has a weaker elasticity than the piston moving spring 32. The rear end of this hammer pressing spring 39 is locked to a locking member 41 fixed within the gun shoulder 3, and has a weaker elastic force than the piston moving spring 32.

A locking member 38 is also provided at the lower part of the hammer member 38.
b is provided, and a hammer stopper 42 is attached to this.
The claw 42a of is engaged. Hammer stopper 42
is rotatably connected to the rear part of the trigger 9 by its support pin 43, and when the trigger 9 is pulled, the support pin 43
is moved backward, and the rear slope 42b of the hammer stopper 42 comes into contact with the engagement shaft 44 and lowers, whereby the pawl 42a also descends and is removed from the locking member 38b. That is, when the trigger 9 is pulled, the hammer stopper 42 momentarily lowers and rises again, and at this time, the pawl 42a is released from the locking member 38b, and the hammer member 38 is released by the strong force of the spring 39 for pressing the hammer. The striking part 38a strikes the rear end of the actuating rod 37 and moves it forward, and at this time the on-off valve 34
opens the communication hole 35 and allows the compressed gas storage chamber 28 and the gas ejection tube 27 to communicate with each other. The return movement of the hammer member 38 will be explained later, but as shown in FIG. is pushed backward, and the actuating rod 37 pushes the striking portion 38a to move the hammer member 38 backward, compressing the hammer pressing spring 39. When the hammer member 38 retreats, the rear slope of the engaging member 38b is aligned with the hammer stopper 4.
In contact with the front inclined surface of the second claw 42a, the second claw 42a
When the user moves backward while pressing down and climbs over this to the rear side, the claw 42a is lifted again by the force of the spring 45 and is locked thereto. Reference numeral 57 in FIG. 2 is a push-back member that is pushed by the spring 56 and returns the stopper 42 and trigger 9.

Inside the gun grip part 2, there is provided a storage part 46 into which the compressed gas storage container 6 can be taken in and taken out from below. The storage container 6 has a spout 6a with a valve at its tip, and when the container 6 is placed in the storage section 46, the spout 6a is airtightly connected to the connection end 48 of the pipe 47, and the storage container The valve in 6 can be opened. Reference numeral 49 denotes a presser lid, which is pivotally supported at the lower end of the gun grip 3 so as to be rotatable about a support shaft 50a. The presser cover 49 has a push-up member 51 inside thereof that is pressed by a coil spring 50, and when the presser cover 49 closes the lower end opening of the gun grip 3, the lower surface of the storage container 6 is pushed up. 52 is a swing stopper,
The lower part of the gun grip part 3 is pivotally supported by a support shaft 53, the upper end of which is pushed by a spring 54, and the claw 52a at the tip engages with the edge of the presser cover 49 to maintain the closed state. It's summery. Reference numeral 55 denotes a gas cylinder, which can be refilled with fluorocarbon gas or the like when the compressed gas storage container 6 is of a gas-filled cartridge type.

The operation order of the gun toy is as shown in FIGS. 1 to 5.

Figure 1 shows the standby state after firing a bullet.
The compressed gas storage container 6 is filled with pressurized gas from a gas cylinder 55. In the state shown in FIG. 1, since the storage container 6 has been removed from the gun grip 3, the inside of the compressed gas storage chamber 28 of the cylinder 29 is in communication with the atmosphere via the pipe 47. The spring 32 is extended to move the piston 30 backward, and the opening/closing valve 34 is pushed by the piston 30 to close the communication hole 35 that continues to the gun barrel 4. Further, the slide member 5 and the bullet pushing rod 24 are retracted together with the piston 30. At this time, when the magazine 13 is loaded into the magazine storage case 12, the bullet 1 is inserted through the bullet passage hole 15 which is automatically opened.
9 falls into the barrel 4.

Next, when the compressed gas storage container 6 is set in the storage section 46 as shown in FIG.
8 opens automatically, compressed gas fills the compressed gas storage chamber 28 of the cylinder 29 through the pipe 47, and the piston 30 is pushed back forward while compressing the spring 32 for piston movement. At the same time, the slide member 5 and the bullet pushing rod 24 move forward, and the bullet 19 is pushed through the gas outlet 27a opened in the gun barrel 4 to a predetermined position on the front side thereof and set. This is the state shown in FIG.

Next, as shown in FIG. 4, when the trigger 9 is pulled, the hammer stopper 42, which had stopped the hammer member 38,
is lowered to release the lock, the hammer member 38 rapidly moves forward by the force of the hammer pressing spring 39 and strikes the actuating rod 37, the on-off valve 34 opens the communication hole 35, and the compressed gas storage in the cylinder 29 occurs. The compressed gas in the chamber 28 is ejected into the gun barrel 4 from the ejection port 27a,
Fire bullet 19.

As shown in FIG. 5, at the moment of firing, the pressure in the compressed gas storage chamber 28 of the cylinder 29 is reduced, and the piston movement spring 32 is activated instantaneously, causing the piston 30 to retreat, opening and closing. Retract valve 34. As a result, the operating rod 37 integrated with the on-off valve 34 moves the hammer member 38 backward against the hammer pressing spring 39, and the hammer stopper 4
2, it is once locked in the retracted position. This is the first
It enters the standby state as shown in the figure. All that is left to do is to pull the trigger 9, and the continuous firing of the bullets 19 and the blowback (backward movement) operation of the slide member 5 are automatically repeated.

Effects of the Invention As described above, bullets can be fired using the pressure of the compressed gas that is ejected into the gun barrel through the valve that opens and closes when the trigger is operated, and the compressed gas that is temporarily pooled in the compressed gas storage chamber can be used to fire bullets. Using gas pressure, the slide member can be caused to blowback (move backward) against the spring force of the spring for piston movement, and therefore manual blowback operation as in the past is not necessary. By simply pulling the trigger, you can continuously enjoy bullet firing and realistic blowback action using the pressure of compressed gas.

[Brief explanation of drawings]

The figure is an explanatory diagram showing a cross-section of the internal mechanism of the toy gun according to the present invention with the outer cover opened, and Figures 1, 2, 3, 4, and 5 show bullet firing from the standby state. It shows the process up to completion divided into five stages. DESCRIPTION OF SYMBOLS 1... Gun jacket, 5... Slide member, 9... Trigger, 13... Magazine, 19... Bullet, 27a... Spout, 28... Compressed gas storage chamber, 29... Cylinder, 30... ...Piston, 32,39...Spring,
34... Opening/closing valve, 35... Communication hole, 37... Operating rod, 38... Hammer member.

Claims (1)

[Claims] 1. By moving the slide member 5 forward and backward, a bullet 19 is supplied from the magazine 13 to the base end of the gun barrel, and by operating the trigger 9, a compressed gas storage chamber 28 containing compressed gas is supplied. In a blowback-type gun toy that opens a communication hole 35 to a nozzle and fires a bullet 19 by jetting compressed gas from a nozzle 27a, a cylinder 29 is disposed inside the gun jacket 1, and a cylinder 29 is disposed inside the gun jacket 1. Piston 3 slidably attached to
0 and one end surface side of the cylinder 29, the compressed gas storage chamber 28 is formed between the cylinder 2
The communication hole 35 is provided on one end surface of the 9, and an on-off valve 34 for opening and closing the communication hole 35 is connected to the compressed gas storage chamber 28.
When compressed gas is introduced into the compressed gas storage chamber 28, the piston 30 moves against the spring force of the piston movement spring 32 and is connected to the piston 30. While moving the slide member 5 forward, the opening/closing valve 34 is pressurized to close the communication hole 35, and the opening/closing valve 34 is attached with an operating rod 37 extending in the direction of movement of the piston 30. A hammer member 38 that is engaged with the trigger 9 is disposed on the tip side of the operating rod 37, and the hammer member 38
A hammer-pressing spring 39 having a smaller spring force than the piston-moving spring 32 is disposed between the gun casing 1 and the piston-moving spring 32. When the trigger 9 is pulled, the hammer-pressing spring 39 is released. Hammer member 3 with force
8. The operating rod 37 and the on-off valve 34 are pressed,
The communication hole 35 is opened and the compressed gas storage chamber 28
The compressed gas of
0 moves toward the compressed gas storage chamber 28 side, presses the on-off valve 34 to close the communication hole 35, and at the same time locks the hammer member 38 to the trigger 9.