JP2657780B2 - Toy air gun - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toy pneumatic gun for blowing a plastic or the like by gas pressure. More specifically, the present invention relates to a so-called blow-back system in which a breech hole protrudes rearward each time a bullet is fired. Also, the present invention relates to a toy air gun in which a hammer occurs with this operation, and the hammer strikes and opens a gas discharge valve.

[0002]

2. Description of the Related Art Conventionally, various blow-back type toy air guns have been developed. These toy guns are, for example,
As described in JP-A-8285, when the trigger is pulled, gas is ejected from the gas accumulator, the gas in the cylinder chamber is filled and pushes the piston, whereby the breech hole retreats, and before and after this, the inside of the bullet gripping chamber is opened. In a blow-back type toy air gun in which a bullet mounted on a gun fires, a component connected to a trigger directly presses a normally closed discharge valve of a gas accumulator to release gas.

[0003] Even if these are provided with a hammer,
The hammer is a decoration that simply moves,
Unlike the operation of an actual gun, the interest was halved. Thus, a toy gun was developed in which a hammer was used and when the trigger was pulled, the valve hammer hit the valve hammer and the valve hammer pushed the normally closed release valve to release gas.

[0004]

In the above blow-back operation, the breech hole or the like automatically retreats due to the gas pressure. During the automatic retreat, complete retreat is impossible unless gas is continuously supplied. Further, when the breech bottom has completely retreated, the gas supply must be stopped, and if not stopped, the gas is wasted and the operation may be broken down. However, in the latter toy air gun,
Only the supply of the vaporized gas is performed by rotating or hitting the hammer, and the gas supply state is maintained or the supply is stopped by operation of a component other than the above-described hammer such as the valve hammer. Therefore, it has a part different from a hammer, the number of parts is increased, the configuration is complicated, and a failure is caused.

The present invention has been made in view of these points, and in such a blow-back type toy gun, the discharge valve is opened by operating only the hammer, and this release state is maintained. An object of the present invention is to provide a toy gun closer to the movement of an actual gun by providing a hammer that closes a valve, and to provide a toy air gun with a simple structure and less failure.

[0006]

According to the present invention, a hammer rotates when a trigger is pulled, and the hammer directly or indirectly hits a discharge valve of a gas pressure chamber to open the valve. Gas is released from the gas accumulating chamber into the cylinder chamber, whereby the piston in the cylinder chamber moves to move the breech hole backward, and before and after this, gas is released from the cylinder chamber and mounted in the bullet gripping chamber. In a toy air gun that fires a bullet that has been fired, the hammer hits a rear end in front of the hammer pivotally supported by a pin at a position where the hammer rotates by retreating the breech base, and the hammer hits a rear end, and a front end. The lower end of a chassis provided with an impact plate capable of pressing the release valve is pivotally supported, and the chassis is constantly urged to rotate toward the hammer,
A rocker is pivotally supported in the middle of the chassis, and the rocker is pivoted from a position where the tip is directed substantially toward the upper end of the chassis to a position substantially perpendicular to the chassis in the above-mentioned hammer direction. Urged, an arc-shaped projection is provided along the outer periphery of a pin that rotatably supports the hammer, and the rocker tip surface is freely abuttable on the outer peripheral surface of the arc-shaped projection. A configuration is provided in which a side of the rocker is provided with a protruding portion at a position on the outer periphery of a shaft support portion of the hammer with the pin, which is outside the arc-shaped protrusion.

According to a second aspect of the present invention, when the trigger is activated, the hammer rotates, and the hammer directly or indirectly hits the discharge valve of the gas accumulator to open the valve, and gas is released from the gas accumulator. A toy that discharges into the cylinder chamber, thereby moving the piston in the cylinder chamber to move the breech hole backward, and before and after this, gas is released from the cylinder chamber to fire a bullet mounted in the bullet gripping chamber. In the pneumatic gun, a frame-shaped hammer housing having open front and rear end surfaces is provided, and a hammer is rotatably provided by pins passed to both side plates of the hammer housing. The hammer is hit by the retreat of the play bottom. And a chassis having a lower end pivotally supported by a pin passed to both side plates of the hammer howbung at the lower front of the hammer. Over it is rotationally biased to constantly hammer direction.

At the upper end of the chassis, a hitting projection of the hammer hits a rear end, and an impact plate capable of pressing the discharge valve at a front end is protruded, and a rocker is provided in the middle of the chassis. The rocker is pivotally biased from a position where the tip thereof is directed substantially toward the upper end of the chassis to a position substantially in the hammer direction and substantially perpendicular to the chassis. An arc-shaped protrusion positioned along the outer periphery of the pin is provided on the side plate of the hammer housing, and the outer end surface of the arc-shaped protrusion can freely contact the rocker tip surface. A configuration is provided in which the side of the rocker is provided with a convex portion at a position on the outer periphery of the shaft support portion outside the arc-shaped protrusion.

[0009]

According to the first and second aspects of the present invention, in order to fire a bullet, first, the breech hole is pulled by hand and retreated, a hammer is caused by the breech hole, the hammer is in a state of accumulation, and the shear is used to release the bullet. Locked in state. Thereafter, the breech hole returns to its original state by the force of the recoil spring, during which the bullet is gripped by the bullet gripping chamber. This completes the preparation. In this state, the protrusion provided on the outer periphery of the shaft support of the hammer pushes the side of the rocker,
The rocker is pushed upward against the biasing force, the chassis pivots rearward, and the tip of the impact plate is located immediately behind the discharge valve. Then, when the trigger is pulled, the engagement of the shear is released, and the hammer rotates by the force of the stored spring, and strikes the rear end of the impact plate. So the chassis pivots forward against the rearward bias,
The front end of the impact plate presses the discharge valve of the gas accumulator.

Thus, the gas is released from the gas pressure chamber. In this state, since the hammer rotates, the convex portion integral with the hammer also rotates, and the convex portion comes off the locker. However, the chassis itself rotates forward, and the locker biases and rotates to form a key shape. The tip end surface of the rocker contacts the outer peripheral surface of the arc-shaped projection. Thus, the chassis is locked in its condition, and the impact plate remains open with the release valve. Then, the hammer occurs due to the retreat of the breech hole due to the release of gas, so that the protrusion on the outer periphery of the shaft support of the hammer pushes the side surface of the rocker, the rocker is pushed upward against the urging force, and the chassis is again attached to the rear. Swing. Thereby, the impact plate releases the pressing of the discharge valve.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. First, a blow-back type toy air gun using the present invention will be described with reference to FIGS.
A magazine 5 having a magazine portion 3 and a gas pressure chamber 4 is detachably provided in the handle portion 2, and a large number of bullets 6 are stored in the magazine portion 3. The press piece 8 urged upward by the machine 7 constantly presses the magazine portion 3 upward.

Above the gas pressure chamber 4, a discharge valve 9 whose outer end is exposed on the outer surface of the magazine 5 is provided.
The discharge valve 9 always closes a discharge path 11 leading from the gas pressure chamber 4 to an elastic nozzle 10 protruding from the upper end of the magazine 5 by a spring force (not shown). Further, a thin cylindrical inner barrel 13 is fixed to the barrel 12 at the upper part of the gun body 1, and a bullet gripping chamber 14 made of a rubber cylinder is provided at the rear end of the inner barrel 13. A slide cover 15 is provided behind the bullet holding chamber, and a cylinder chamber 16 is slidably supported in the slide cover 15.

The gun body 1 has a trigger 17. When the trigger 17 is pulled, a hammer 18 provided at the rear of the gun body 1 is provided.
(Not shown) is rotated, the lock is released, and the hammer 18 is rotated by the force of the accumulation spring 19,
The hammer 18 hits the impact plate 20, and the impact plate 20 pushes the discharge valve 9 against the force of the spring to open the discharge path 11.

Next, the details of the slide cover 15 and the cylinder chamber 16 will be described with reference to FIG. 2. A frame-shaped slide block 21 having a rear end face is fixed in the slide cover 15, and the rear end face of the slide block 21 is fixed. To the rear end of the piston 22 and is fixed by screws 23. Further, the cylinder chamber 16 is slidably supported in the slide block 21 in the front-rear direction. The piston 22 is slidably fitted into the cylinder chamber 16 from the rear end opening of the cylinder chamber 16. ing. The cylinder chamber 16 has a notch 16a at a front end and a lower end following the front end, and further has a gas inlet 16b at a lower middle position. This gas inlet 16b is closed by the elastic nozzle 10 when the cylinder chamber 16 is at a fixed position.

The outer diameter of the piston 22 extends in three stages from the front end to the rear end, and a vertical hole 24 penetrates in three stages in the longitudinal direction substantially in accordance with the outer diameter. The inner piston 2 is inserted into the smallest vertical hole 24a provided at the front end thereof.
5 is slidably inserted, an O-ring 26 is provided on the outer periphery of the rear part, and a rear part of the O-ring 26 is inserted into a medium-diameter vertical hole 24b. Is sealed. A piston end 27 is inserted and filled in the large-diameter vertical hole 24c and fixed. Therefore, the screw 23 is screwed to the piston end 27.

The O-ring 2 in the medium-diameter vertical hole 24b
Between the piston end 6 and the piston end 27, there is provided a piston inner spring 28 which constantly urges the inner piston 25 forward and positions the O-ring 26 at the step between the medium-diameter vertical hole 24b and the small-diameter vertical hole 24a. ing. In this state, there is a gap between the rear end of the inner piston 25 and the piston end 27, and the inner piston 25
Is slightly projected from the tip of the piston 22. Further, the inner piston 25 has a vertical hole 29 from the front end surface to the middle, and horizontal holes 30 extending from the rear end of the vertical hole 29 to both sides of the outer periphery of the inner piston 25 are formed.

Further, on both sides of the outer periphery of the middle diameter portion of the piston 22, there are provided horizontal holes 31 each reaching the vertical hole 24b having a medium diameter. Each of these horizontal holes 31 allows the inner piston 25 to resist the force of the piston inner spring 28. When the rear end abuts on the front end of the piston end 27, the position of each lateral hole 30 of the inner piston 25 is matched. Although the horizontal holes 30 and 31 are shifted by 90 degrees in FIG. 2, the horizontal holes 30 and 31 are illustrated for easy explanation, and actually coincide with each other. The cylinder chamber 16 is restricted from sliding forward by a slide stopper 32 provided in the slide cover 15, and the rearward slide is restricted by the rear end surface of the slide block 21. In FIG. 1, a recoil spring 34 is wound around a guide shaft 33 provided in parallel with the barrel 12, and the recoil spring 34 returns the slide cover 15 to the original position when the slide cover 15 blows back by gas pressure. It is urging to return.

In this embodiment, the bullet 6 is fired by pulling the trigger 17 from the fire-ready state shown in FIG. It rotates by force and strikes the impact plate 20, and the impact plate 20
Press. As a result, the discharge valve 9 is pushed against the force of the spring, and the gas discharge path 11 is opened. Therefore, the vaporized gas generated and stored by the liquefied gas filled in the gas storage chamber 4 passes through the discharge valve 9 through the discharge valve 9 and the injection port 16.
The cylinder enters the cylinder chamber 16 through b. Then, the gas enters the lateral hole 31 of the piston 22, the lateral hole 30 of the inner piston 25, and the vertical hole 29 of the inner piston 25 in the cylinder chamber 16, and flies the bullet 6 closing the front end face of the vertical hole 29. Thus, the bullet 6 is fired from the muzzle through the inner barrel 13 as shown in FIG.

When the bullet 6 is fired, the inner piston 25 is no longer held down, and the O-ring 26 is moved by the force of the piston inner spring 28 into the small-diameter vertical hole 24a.
Until it hits the step at the boundary between the vertical hole 24b and the middle diameter vertical hole 24b.
As a result, the lateral hole 30 of the inner piston 25 shifts forward as shown in FIG. Then, the gas enters from the lateral hole 31 of the piston 22 to the vertical hole 24 b of the medium diameter of the piston 22 and presses the front end face of the piston end 27. Thus, the piston 22 is pushed by the gas pressure, and the slide cover 15 blows back against the force of the recoil spring 34. At that time, as shown in FIG. 5, the cylinder chamber 16 is left for a while, during which the bullet 6 is pushed up from the magazine section 3 and the cylinder chamber 16
Of the bullet gripping chamber 14 enters through the notch 16a
Is located after.

Then, as shown in FIG.
5 comes to a position where the slide stopper 32 of FIG.
Exit from step 6 and discharge the used gas. Further, as shown in FIG. 6, the cylinder chamber 16 is also moved backward by being locked by the slide stopper 32. Then elastic nozzle 1
From 0, the gas inlet 16b of the cylinder chamber 16 also comes off.
In addition, the retraction of the slide cover 15 causes the hammer 1 to move.
8 happens. Even if the slide cover 15 moves forward, the state of the hammer 18 is maintained by a shear (not shown). Immediately after this, the discharge valve 9 closes the discharge path 11 and the injection of the vaporized gas from the gas pressure chamber 4 to the cylinder chamber 16 is stopped, but the piston 2 that is rapidly retreating is stopped.
2 and the slide cover 15 continue the retreating motion by the motion inertia.

When the retraction is completed, the slide cover 15 advances by the force of the recoil spring 34, and the tips of the piston 22 and the inner piston 25 push the rear part of the bullet 6, and at the same time, the front end of the cylinder chamber 16 grips the bullet. Cylinder chamber 1
The piston 22 and the inner piston 25 project outward from the notch 16a at the front end of the
Inside, the bullet 6 is pushed into the bullet gripping chamber 14.

When the trigger is fired as described above, a bullet is fired, and while the slide cover blows back, the discharge valve of the gas accumulator is opened and the hammer performs the operation of closing the valve. 7 through 10
Will be described.

7 and 8, a frame-shaped hammer housing 35 having open front and rear end faces is provided, and the hammer 18 is rotatably provided by pins 36 passed over both side plates 35a of the hammer housing 35. Both side plates 35 of the hammer howbang 35 at the lower front of the hammer 18
A chassis 38 having a lower end pivotally supported on the pin 37 passed through the pin a is always biased by a spring 39 in a hammer direction, that is, clockwise in FIG. At the upper end of the chassis 38, the striking projection 18a of the hammer 18 hits the rear end, and the impact plate 20 can press the release valve 9 at the front end.
Are rotatably supported by pins 40.

The impact plate 20 protrudes from the front of the chassis 38 and is urged counterclockwise by a spring 41 so as to form a key having a fixed angle. A rocker 42 is pivotally supported by a pin 43 in the middle of the chassis 38, and the rocker 42 is urged to rotate clockwise with respect to the chassis 38 by the force of a spring 44. An arc-shaped projection 45 located along the outer circumference of the pin 36 of the hammer 18
Is provided on the side plate 35 a of the hammer housing 35, and the distal end surface of the rocker 42 can freely contact the outer peripheral surface of the arc-shaped projection 45. A projection 46 is provided on the outer periphery of the shaft support portion 18b of the hammer 18 with the pin 36, outside the arc-shaped projection 45, with which the side of the rocker 42 can abut.

When the bullet is fired, first, the slide cover 15 is pulled back by hand, and the hammer 18 is raised by the slide cover 15, and the hammer 18 is in a state of accumulation and is locked in that state by the shear. You. Thereafter, the slide cover returns to the original state by the force of the recoil spring 34, during which the bullet 6 is gripped by the bullet gripping chamber 14. This completes the preparation. In this state, as shown in FIG. 8, a convex portion 46 provided on the outer periphery of the shaft support portion 18b of the hammer 18 pushes the side surface of the rocker 42, the rocker 42 is pushed upward against the force of the spring 44, and the chassis 38 With the force of 39, it rotates backward, that is, toward the hammer 18, and the tip of the impact plate 20 is located immediately behind the discharge valve 9.

When the trigger 17 is pulled, the locking of the shear is released, and the hammer 18 is rotated by the force of the storage spring 19,
The hitting projection 18a of the hammer 18 is the impact plate 2
Hit the rear end of the zero. Then, the chassis 38 rotates forward against the rearward biasing force of the spring 39, and the front end of the impact plate 20 presses the discharge valve 9 as shown in FIG. As a result, gas is released from the gas pressure chamber 4. Since the hammer 18 rotates in this state, the convex portion 46 integral with the hammer 18 also rotates, and the convex portion 46
However, the chassis 38 itself rotates forward, and the rocker 42 is biased and rotated to form a key shape. The tip end surface of the rocker 42 contacts the outer peripheral surface of the arc-shaped projection 45.

Therefore, the chassis 38 is locked in its state, and the impact plate 20 keeps the discharge valve 9 open. Then, the hammer 18 is rotated by the retreat of the slide cover 15 due to the release of gas. However, as shown in FIG. 10, the tip of the rocker 42 rotates while hitting the outer periphery of the arc-shaped projection 45 for a while, so that the chassis 38 and the impact The plate 20 maintains this state. Then, when the hammer 18 is completely raised, as shown in FIG. 8, the convex portion 46 on the outer periphery of the shaft support 18b of the hammer 18 pushes the side surface of the rocker 42, and the rocker 42 is pushed upward against the urging force of the spring 44. Then, the chassis 38 is rotated backward again by the urging force of the spring 39. Thereby, the impact plate 20 releases the pressing of the discharge valve 9.

The present invention is not limited to the above embodiment. When the trigger is pulled, the gas is released from the gas pressure chamber, whereby the slide cover or the play bottom is pushed to move rearward, and before and after this, Any configuration of a toy air gun that fires a bullet mounted in a bullet gripping chamber may be used. Further, in the above embodiment, the hammer, the chassis, and the like are incorporated in the hammer housing, but these parts may be directly supported by the gun body without using the hammer housing. In the above-described embodiment, the slide cover 15 is used for the flow-back. However, the slide cover 15 refers to a so-called play bottom with an actual gun. Blowback can be performed before or after the bullet is fired.

[0029]

According to the first aspect of the present invention, there is provided a blow-back type toy air gun which, when a trigger is pulled, causes a breech hole to move rearward, and fires a bullet before and after the trigger. Directly or indirectly hit the discharge valve of the gas accumulator, open the discharge valve to release the gas, maintain that state during a certain operation, and close the discharge valve after a certain operation, All of the above operations are performed by the hammer, so that the configuration of the toy gun is simplified and the number of failures is reduced. In addition, this configuration makes it closer to an actual gun despite the toy.

According to a second aspect of the present invention, in addition to the effect of the first aspect, the hammer, the chassis having the impact plate and the locker, and the like are incorporated in a hammer housing composed of a frame, so that they can be mounted on the gun body. Is extremely easy to mount, and the operation of each of these is also ensured.

[Brief description of the drawings]

FIG. 1 is a sectional view of a toy air gun according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a main part of the toy air gun according to the embodiment of the present invention in a state in which preparation for bullet firing is completed.

FIG. 3 is a cross-sectional view of a main part showing a state immediately after a bullet is fired when the toy air gun of the embodiment of the present invention is triggered.

FIG. 4 is a sectional view of a main part showing a state of the toy air gun according to the embodiment of the present invention after a bullet is fired.

FIG. 5 is a sectional view of a main part of the toy air gun according to the embodiment of the present invention, showing a state where the slidered cover has begun to blow back.

FIG. 6 is a sectional view of a main part showing a state in which the slide cover of the toy air gun according to the embodiment of the present invention is fully blown back.

FIG. 7 is a perspective view of the hammer housing of the present invention.

FIG. 8 is a sectional view of a main part of the hammer housing according to the present invention, showing a state in which a hammer is raised.

FIG. 9 is a sectional view of a main part showing a state in which the hammer in the hammer housing of the present invention is turned down, and the impact plate hit by the hammer hits the discharge valve.

FIG. 10 is a cross-sectional view of a main part showing a state where the impact plate is still pressing the discharge valve while the hammer is being raised in the hammer housing of the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 gun body 3 magazine part 4 gas accumulator chamber 5 magazine 6 bullet 9 discharge valve 10 elastic nozzle 11 discharge path 12 barrel 13 inner barrel 14 bullet holding chamber 15 slide cover 16 cylinder chamber 17 trigger 18 hammer 20 impact plate 35 hammer housing 38 Chassis 42 Rocker 45 Arc-shaped protrusion 46 Convex part

Claims (2)

(57) [Claims] When the trigger is triggered, the hammer rotates, and the hammer directly or indirectly hits the discharge valve of the gas pressure chamber to open the valve, and gas is discharged from the gas accumulator into the cylinder chamber. Then, the piston in the cylinder chamber moves to move the breech hole backward, and before and after this, gas is released from the cylinder chamber and a bullet mounted in the bullet gripping chamber is fired, and the breech hole is fired. The hammer is rotatably supported by a pin at a position where the hammer rotates by retreating, and an impact plate is provided in front of the hammer such that the hammer hits a rear end portion and a front end portion capable of pressing the discharge valve at the front end. The lower end of the installed chassis is pivotally supported, the chassis is constantly urged to rotate toward the hammer, and a rocker is pivotally supported in the middle of the chassis. The tip of the pin is pivotally biased from a position facing the substantially upper end direction of the chassis to a position substantially in the hammer direction and substantially perpendicular to the chassis, and the outer periphery of a pin rotatably supporting the hammer. An arcuate projection is provided along the outer periphery of the arc-shaped projection, and the tip end surface of the rocker is freely contactable with the outer periphery of the arc-shaped projection. A toy pneumatic gun characterized in that a convex portion is provided at an outer position so that a side portion of the locker can abut. 2. When the trigger is triggered, the hammer rotates, and the hammer directly or indirectly hits the discharge valve of the gas pressure chamber to open the valve, and gas is discharged from the gas accumulator into the cylinder chamber. Then, the piston in the cylinder chamber moves to move the breech bottom backward, and before and after this, a gas is released from the cylinder chamber to fire a bullet mounted in the bullet gripping chamber, and the front and rear end faces of the toy air gun. Provide a frame-shaped hammer housing with open
The hammer is pivotally supported on pins passed to both side plates of the hammer housing, and the hammer is set at a position where the play bottom is rotated by the retreat of the play bottom. A chassis with the lower end pivotally supported on the passed pin is provided, and the chassis is constantly urged to rotate in the hammer direction, and the hammer hits the rear end at the upper end of the chassis, and discharges at the front end. An impact plate capable of pressing the valve is protruded, and a rocker is pivotally supported in the middle of the chassis. It is urged to rotate to a position substantially perpendicular to the substantially, and an arc-shaped protrusion positioned along the outer periphery of the hammer support pin is formed on the hammer housing. The rocker tip end surface is provided to be able to abut on the outer peripheral surface of the arc-shaped protrusion, and the rocker is located at a position outside the arc-shaped protrusion on the outer periphery of a shaft supporting portion of the hammer with the pin. A toy air gun characterized in that a side portion of the toy is provided with a convex portion which can freely contact.