JP2793984B2 - Toy gun with automatic bullet supply mechanism - 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 gun having an automatic bullet supply mechanism for supplying a bullet fired by gas pressure to a loading chamber provided in a barrel portion using gas pressure.

[0002]

2. Description of the Related Art In general, a toy gun called an airsoft gun is created so that not only its color and shape but also its apparent movement is similar to that of a real one. Among such toy guns, the one imitating a gun in which a slider attached to a barrel is moved in response to an operation on a trigger, wherein a bullet loaded in a loading chamber provided at a rear end of the barrel is used. It is known that, in addition to firing by gas pressure, bullets are supplied to the loading chamber by gas pressure. For example, 3-38
As shown in Japanese Patent Publication No. 593, a pressure storage cylinder filled with air, a magazine, first and second valves, first and second gas passages, and a bullet supply lever are arranged on a grip portion. In a slider provided for a barrel provided with a landing hole, a cylinder opposed to the barrel via a magazine plate forming a landing hole, and a spring guide member moved along with the movement of the slider are provided. A toy gun has been proposed which uses the pressure of air from a pressure storage cylinder to fire a bullet loaded in a landing hole and supply the bullet to the landing hole.

[0003] In such a toy gun, when the trigger is pulled, the first valve places the first gas passage in an open state, and air from the accumulator cylinder passes through the first gas passage. The piston member accommodated in the cylinder retreats the slider from the initial position by the pressure of the air supplied to the cylinder and supplied to the cylinder. Then, the cylinder to which the air is supplied from such a pressure storage cylinder is exhausted when the slider is retracted by a predetermined amount. On the other hand, with the retraction of the slider from the initial position, the spring guide member is retracted while compressing the spring member, whereby the impact hole in the magazine plate is discharged from the magazine from the initial position facing the muzzle. Is moved to a position opposite to. Then, the bullet discharged from the magazine is loaded into the impact hole by the bullet feed lever which is swung in conjunction with the trigger. Under such circumstances, when the cylinder is placed in the exhaust state and the slider moves forward from the retracted position and reaches the initial position, the spring member is returned to the original position by returning the spring guide member to the original position. The landing hole loaded with the bullet is placed at the initial position.

[0004] When the impact hole loaded with the bullet is placed in the initial position, the second valve opens the second gas passage by the hammer that rotates in conjunction with the operation on the trigger. The air from the pressure storage cylinder is supplied to the impact hole through the second gas passage, and the pressure of the air supplied to the impact hole causes the bullet loaded in the impact hole to advance from the retracted position. Fired upon reaching its initial position.

[0005]

As described above, a cylinder for forming a pressure chamber is disposed in a slider movably provided with respect to a barrel, and air is supplied to the pressure chamber when a trigger is pulled. In a conventionally proposed toy gun in which a bullet is supplied to a landing hole by discharging, automatic firing of the bullet is enabled. In such a toy gun capable of automatic firing, each gas passage through which the air from the pressure accumulator can pass has a good sealing property that does not lead to air leakage. It is desired that the filled air be used for a relatively long time to launch and load bullets loaded into the impact holes.

However, for example, in a toy gun provided with a pressure storage cylinder with a pair of gas passages in which a communicating state and a non-communicating state can be selectively established as a movable member such as a slider moves, the gas The passage is configured to be in a communication state where it is difficult to obtain a good sealing property, so that air or other gas from the pressure storage cylinder leaks from the connection portion of the gas passage. As a result, there is a possibility that the air or other gas filled in the pressure accumulator is wasted. Then, in a situation where air or other gas from the pressure accumulator leaks from the connection portion of the gas passage, the air or other gas filled in the pressure accumulator is discharged for a relatively long time. Therefore, it cannot be effectively used for projectile firing and bullet supply.

[0007] In view of the above, the present invention provides, in a grip portion, gas used for firing a bullet supplied to a loading chamber provided at a rear end portion of a barrel portion and subsequently supplying the bullet to the loading chamber. And a pressure storage chamber filled with
A movable member is provided that moves with the movement of the slider portion provided along the barrel of the barrel portion, a gas passage portion extending from the pressure accumulating chamber in the grip portion, and a gas passage portion that is provided in the movable member and is provided in the grip portion. With the gas passage to which the gas from the accumulator is supplied through the gas passage is selectively placed in a communicating state and a non-communicating state with the movement of the movable member, with a very simple configuration, Provided is a toy gun with an automatic bullet supply mechanism in which a gas passage portion in a grip portion and a gas passage portion in a movable member are in communication with each other while maintaining good sealing performance.

[0008]

According to the present invention, there is provided a toy gun with an automatic bullet supply mechanism according to the present invention, comprising: a grip portion in which a magazine portion, an accumulator, and a first gas passage extending from the accumulator are disposed;
A first opening forming portion that forms an opening end of the first gas passage portion at a position to be an upper end portion of the grip portion;
A slider portion capable of retreating and advancing along the barrel portion, a pressure chamber forming portion provided in a portion of the slider portion behind the barrel portion, and a second gas passage portion formed therein. A second opening forming portion which forms an opening end of the second gas passage portion is provided at a lower end portion, and is arranged between a loading chamber provided in the barrel portion above the grip portion and a pressure chamber forming portion. A movable member for supplying a bullet from one end of the magazine portion to the loading chamber by reciprocating movement accompanying the retreat and advance of the slider portion, and taking a state in which the second gas passage portion communicates with the first gas passage portion; A second state in which a first state in which the second gas passage is communicated with the loading chamber and a second state in which the second gas path is communicated with the pressure chamber forming part are selectively disposed in the movable member; From the first state with the part communicating with the first gas passage When the second gas passage communicates with the first gas passage with the provision of the gas passage controller which shifts to the state 2, the second opening forming part advances and the first opening forming part moves forward. And the opening end of the first gas passage and the opening end of the second gas passage are opposed to each other, and the first opening forming part and the second opening forming part are
The second opening forming portion is configured to have a shape that prevents further advancement of the second opening forming portion when the second opening forming portion is in opposition to the first opening forming portion.

The first opening forming section and the second opening forming section, for example, each form an inclined surface which descends from the loading chamber side toward the pressure chamber forming section, and the second opening forming section, for example. Is in contact with the inclined surface of the first opening forming portion.

[0010] In the toy gun with the automatic bullet supply mechanism according to the present invention having the above-described configuration, the first gun in the grip portion communicated with the second gas passage in the movable member. During the period in which the gas passage is in the open state, the gas from the accumulator supplied to the second gas passage through the first gas passage is first brought into communication with the second gas passage. Supplied to the loaded chamber and used to fire the bullets supplied to the chamber, followed by a second
Is supplied to the pressure chamber forming portion which is in communication with the gas passage portion and is used for retreating the slider portion. The movable member retreats along with the retraction of the slider portion, and thereby the first
The communication state between the gas passage portion and the second gas passage portion is released, and the gas is discharged from the pressure chamber forming portion through the second gas passage portion. Along with this, the slider portion changes from retreating to advancing, and advancing of the movable member accompanying the advancing of the slider portion supplies a bullet to the loading chamber, and the first gas passage portion and the loading chamber again It is placed in communication with the gas passage.

As described above, the first gas passage portion and the second gas passage portion which selectively take the communication state and the non-communication state are provided.
The second opening forming portion provided on the movable member forming the opening end of the second gas passage portion is retreated with the retreat of the movable member to form the opening end of the first gas passage portion. The grip portion is released from the state in which the grip portion is in abutment with the first opening forming portion, so that a non-communication state is established.
Of the opening member is advanced with the advance of the movable member,
Are brought into a state of communication with each other by being brought into contact with the opening forming portion. The first opening forming portion and the second opening forming portion which are brought into the mutually opposing abutting state by the forward movement following the retreat of the movable member, for example, each are directed from the loading chamber side to the pressure chamber forming section side. Forming a descending slope,
The inclined surface in the second opening forming portion is configured to be in contact with the inclined surface in the first opening forming portion, and the second opening forming portion is in contact with the first opening forming portion. The opening forming portion has a shape that prevents further advancement, so that the opening end of the first gas passage and the opening end of the second gas passage are opposed to each other.

Therefore, the second opening forming portion which advances along with the advance of the movable member and abuts against the first opening forming portion is
The position is regulated by the first opening forming portion so as not to cause an undesired positional displacement with respect to the first opening forming portion, and the opening end of the first gas passage portion and the second gas passage portion are placed. The open ends of the parts are maintained in contact with each other while being properly opposed to each other so as to obtain good sealing performance. As a result, under a very simple configuration, the first gas passage and the second gas passage are connected in a proper communication state in which a good sealing property is maintained.
Leakage of the gas from the connecting portion of the gas from the accumulator that is supplied to the second gas passage through the first gas passage is prevented.

[0013]

FIG. 2 shows an example of a toy gun with an automatic bullet supply mechanism according to the present invention. In the example shown in FIG. 2, a toy gun main body 10 having a trigger 1, a barrel 2, a hammer 5 provided at the rear end of the barrel 2, a hammer 5, and a grip 6, A case 30 is provided so as to be detachably accommodated, and a slider section 50 movably provided with respect to the barrel 2 is provided. The loading chamber 4a is formed by a rear portion of an annular member 4 made of an elastic friction material such as a rubber material, and a front portion of the annular member 4 is fitted to the rear end of the barrel 2. The inner wall of the annular member 4 is provided with an annular protrusion 4b that separates a front side portion and a rear side portion.

The grip 6 is provided with a movable bar 8. The trigger 1 includes a shaft 11 provided at a front portion of the movable bar 8 protruding from the grip 6 and a shaft 12 around which a toggle spring 9 is wound. , And is supported by the toy gun body 10. Trigger 1, when it is pulled,
With the shaft 12 as a fulcrum, it is rotated from the reference position indicated by the solid line in FIG. A rotating lever 15 attached to the grip 6 via the shaft 7 is disposed behind the movable bar 8. The movable bar 8 is moved forward and backward in response to the operation of the trigger 1, and is rotated about the shaft 11 by the movement of the slider portion 50 to rotate the rotation lever 15.

The slider portion 50 is fitted to a portion of the toy gun body 10 where the barrel 2 is provided, and
And a first portion 50A forming a front portion of the first portion 50A.
A, and a second portion 50 </ b> B that is formed integrally with and positioned at the rear side of the barrel 2 and forms a rear portion of the slider portion 50.
It has the following. When the trigger 1 is at the reference position, the slider 50 is positioned such that the first portion 50A has its front end close to the front end of the toy gun body 10 and the second portion 50B has the toy gun Body 10
At a reference position as shown in FIG. 2 which covers an intermediate portion between the barrel 2 and the grip 6 in FIG. The first portion 50A of the slider portion 50 is disposed on the front side of the trigger 1 in the toy gun main body 10 and has a barrel 2
The slider portion 50 is entirely movable along the barrel 2. A coil spring 18 is fitted on the guide member 17.
Engages with the first portion 50 </ b> A of the slider portion 50 via the guide member 17 and urges the entire slider portion 50 toward the front side of the toy gun body 10.

The second portion 50B of the slider portion 50
Inside, as shown in FIG. 3, a cup-shaped fixing member 5 is provided.
1 and a pressure chamber forming portion including the first and second movable cylindrical members 52A and 52B. The fixing member 51 in the pressure chamber forming portion is attached to the second portion 50B of the slider portion 50 and
Of the movable cylindrical members 52A and 52B. The first movable cylindrical member 52A in the pressure chamber forming portion accommodates the second movable cylindrical member 52B and is disposed in the fixed member 51 when the slider portion 50 is at the reference position.

Further, a movable member 54 is disposed in the second portion 50B of the slider portion 50. The movable member 54 is located between the loading chamber 4a and the pressure chamber forming portion,
A rear portion accommodated in the second movable cylindrical member 52B, a front portion selectively engaged with a portion forming the loading chamber 4a of the annular member 4, and an intermediate portion having a relatively large diameter. And a locking portion for the second movable cylindrical member 52B is formed by the rear side portion. The movable member 54 is engaged and supported by the slider portion 50 via the second movable cylindrical member 52B. The other end of the coil spring 55 having one end attached to the fixed member 51 is attached, and It is urged by the coil spring 55 in a direction approaching the fixing member 51. Such a movable member 54 has a configuration in which the slider 50 is located at the reference position.
The front side portion is located at a position where the front side portion engages with the portion of the annular member 4 forming the loading chamber 4a.

The movable member 54 includes a central space portion 20, a gas passage 21 for projectile emission extending from the central space portion 20 toward the front end of the movable member 54, and a rear end of the movable member 54 extending from the central space portion 20. And a common gas passage 23 extending from the central space 20 toward the grip 6.
A gas passage control unit 25 is provided, and a communication passage having a relatively small diameter is provided at the rear end of the bullet supply gas passage 22. A movable member-side gas passage is formed by the central space 20, the bullet firing gas passage 21, the bullet supply gas passage 22, and the common gas passage 23. As shown in FIG. , That is, the opening end 23A of the movable member side gas passage portion is formed by an opening forming portion 54A provided at a portion forming a lower end portion of the movable member 54. The opening forming portion 54A that forms the opening end 23A of the movable member 54 forms an inclined surface that descends from the loading chamber 4a toward the pressure chamber forming portion.

The gas passage control unit 25 includes a rod 26 extending from the bullet supply gas passage 22 through the central space 20 into the bullet firing gas passage 21, and fitted to the rod 26 to form the central space 20. And the valve member 27 located in the inside. The rod 26 in the gas passage control unit 25 is urged toward the bullet chamber 4a by a coil spring 28 housed in the bullet supply gas passage 22. Valve member 27 in gas passage control unit 25
Forms an annular elastic seal member, which is moved between the bullet firing gas passage 21 and the bullet supply gas passage 22 in accordance with the movement of the rod 26, so that the bullet firing gas passage 21 and the bullet The opening and closing of the supply gas passage 22 is controlled.

As shown in FIGS. 4A, 4B and 4C, for example, a rod 26 constituting the gas passage control section 25 has a rear end portion 26a having a triangular cross section and a hemispherical front end. Body part 26 to be a solid rod provided with a part
b, and the rear end portion 26a is provided in the bullet supply gas passage 22.
The main body portion 26b extends linearly from the rear end portion 26a toward the loading chamber 4a, and the valve member 27 is fitted to the main body portion 26b.

The hammer 5 is rotatably attached to the rear end of the toy gun body 10 via a shaft 13. In the initial state in which the case 30 is mounted on the grip 6, the hammer 5 is, for example, in a state in which the hammer 5 is brought into contact with the distal end of the firing movable pin 40 protruding from the inside of the grip 6, and the rotation lever 15 And the position is fixed. Such a launching movable pin 40
Is urged in a direction approaching the hammer 5 by a coil spring 46 fitted on the rod 43. The rotating lever 15 is urged in a direction approaching the hammer 5 by a toggle spring 16 wound around the shaft 7. The other end of a shaft member 42 having one end with which a coil spring 41 disposed in a lower portion of the grip 6 is engaged is attached to the hammer 5. The hammer 5 is engaged with the shaft member 42. The coil spring 41 is urged in a direction (a direction) indicated by an arrow a in FIG. 3.

On the other hand, the case 30 is inserted into the grip 6 through an opening provided at the lower end of the grip 6, and the bottom portion 30a is brought into contact with and engaged with the lower end of the grip 6, and It is assumed that positioning has been performed. In the case 30, a plurality of loaded bullets B
Coil spring 32 for urging B toward the uppermost end 31a
, Such as a pressure accumulating chamber 33 filled with liquefied gas and a piston member 35 movably accommodated therein, and one end of which is sealed by the piston member 35. A lower gas passage 37 which is located below and connects the accumulator chamber 33 to the connection gas passage 36, and an upper gas which is located above the connection gas passage 36 and connected to the lower gas passage 37 via the connection gas passage 36 A passage 38 is provided.

The connecting gas passage 36, the lower gas passage 37, and the upper gas passage 38 form one grip-side gas passage extending from the accumulator 33 toward the movable member 54, as shown in FIG. As shown in FIG.
, Ie, the open end 3 of the grip-side gas passage.
8A is formed by an opening forming portion 30A provided at a position forming an upper end portion of the grip 6 in the case 30. The opening forming part 30A in the case 30 forms an inclined surface that descends from the loading chamber 4a toward the pressure chamber forming part, similarly to the opening forming part 54A in the movable member 54.

The piston member 35 accommodated in the connecting gas passage 36 is provided with a valve portion 35a for opening and closing the other end of the connecting gas passage 36 in accordance with its movement. The piston member 35 is disposed in the lower gas passage 37 and
a by the urging force of the coil spring 39 abutting on
The tip is urged in a direction in which the tip protrudes from the case 30 to the outside.

When the case 30 is positioned in the grip 6, the uppermost end 31a of the magazine 31 is disposed near the loading chamber 4b and is closed by an intermediate portion of the movable member 54. Thus, the plurality of bullets BB loaded in the magazine 31 are pressed in a direction against the urging force of the coil spring 32. The distal end of the piston member 35 projects from the case 30 into the grip 6 to abut the rod 43 attached to the firing movable pin 40, and the movable member 45 disposed in the grip 6 is moved. Is pressed against the urging force of the coil spring 44 that urges the coil upward.

Further, the opening forming portion 54A of the movable member 54 abuts against the opening forming portion 30A of the case 30, and the opening end 23A of the gas passage portion on the movable member side and the opening end 38A of the gas passage portion on the grip side. Are opposed to each other. Thereby, the upper gas passage 38 is brought into communication with the common gas passage 23 in the movable member 54 via the opening end 38A and the opening end 23A. At this time, the other end of the connecting gas passage 36 is connected to the piston member 35.
Is closed by the valve portion 35a.

In the example of the toy gun with the automatic bullet supply mechanism according to the present invention configured as described above, when the case 30 is positioned in the grip 6, the slider portion 50 that takes the reference position is temporarily operated by a manual operation. After being retracted, it is released from the manual operation, and is returned to the reference position again by the urging force of the coil spring 18. With the retraction of the slider portion 50 at this time, the uppermost end portion 31 of the magazine 31
The uppermost end 31a is opened by retracting the movable member 54 that closes the bullet a by its intermediate portion, and the movable member 54 is moved to the uppermost position among the bullets BB filled in the magazine 31 by the urging force of the coil spring 32. Something is pushed up into the uppermost end 31a and is held at the uppermost end 31a.

Then, the movable member 54 is moved forward by the forward movement following the retreat of the slider portion 50, whereby the movable member 54 has its front end at the uppermost end 31a of the magazine 31.
The bullet BB held therein is inserted along the tapered portion 10 a provided in the toy gun main body 10 into the bullet chamber 4.
a, the uppermost end portion 31a is closed by an intermediate portion thereof, and a front portion thereof is re-engaged with a portion of the annular member 4 forming the loading chamber 4a, and is fixed in position. As a result, as shown in FIG. 5, the bullet BB is loaded in the loading chamber 4a. Ammunition room 4
The bullet BB loaded in a is formed by the annular projection 4b and the front portion of the movable member 54 that engages with the annular member 4.
The position is properly fixed in the loading chamber 4a.

The reciprocating movement of the movable member 54 at this time is caused by the retreat, and as shown in FIG.
2 and 3 are separated from the opening forming portion 30A of the case 30 by separating the opening forming portion 54A of the movable member 54 which is in a state of facing the opening forming portion 30A in FIG.
As shown in FIG. 1, the common gas passage 23 and the upper gas passage 38 in the communication state as shown in FIG. 1 are made in a non-communication state, and the advance thereof advances the opening forming portion 54A in the movable member 54, as shown in FIG. As shown in FIG.
As shown in FIG. 3, the common gas passage 23 and the upper gas passage 38 are brought into a communication state again.

As described above, the opening forming portion 54A of the movable member 54 and the opening forming portion 30A of the case 30, which selectively make the common gas passage 23 and the upper gas passage 38 communicate with each other, are respectively provided from the side of the loading chamber 4a. An inclined surface descending toward the pressure chamber forming portion is formed, and the inclined surface in the opening forming portion 54A is made to face the inclined surface in the opening forming portion 30A so that the opening forming portion 54A is in contact with the inclined surface in the opening forming portion 30A.
A is formed to have a shape that prevents further advancement of the opening forming portion 54A when the opening forming portion 54A is opposed to and abuts with the opening portion 23A of the movable member side gas passage portion and the opening end portion 38A of the grip side gas passage portion. Are opposed to each other.

Therefore, the position of the opening forming portion 54A of the movable member 54 which advances with the advancement of the movable member 54 and abuts against the opening forming portion 30A of the case 30 is regulated by the opening forming portion 30A. As a result, there is no undesired displacement with respect to 30A, and the open end 23A of the movable member side gas passage and the open end 38A of the grip side gas passage are properly opposed to each other. They are maintained in contact with each other with good sealing properties. As a result, the common gas passage 23 and the upper gas passage 38 are connected with an appropriate communication state in which good sealing is maintained.

The bullet BB loaded in the loading chamber 4a abuts against the tip of the rod 26 in the gas passage control unit 25 provided in the movable member 54, and pushes the rod 26 against the urging force of the coil spring 28. Press in the direction you want. Thereby, the valve member 27 closes the bullet supply gas passage 22, and connects the bullet discharge gas passage 21 to the upper gas passage provided in the case 30 via the central space portion 20 and the common gas passage 23. 38.

When the slider portion 50 is retracted by manual operation, the hammer 5 is moved from the position shown by the one-dot chain line in FIG. The turning lever 15 is turned in a direction opposite to the direction a while pressing the turning lever 15 in a direction against the urging force of the toggle spring 16 against the urging force of the coil spring 41, and is shown by a solid line in FIG. As shown in the figure, the lever is engaged with the rotating lever 15 at a position separated by a predetermined distance from the firing movable pin 40, and the position is fixed. Further, at this time, the trigger 1
With the retreat of the slider portion 50 and the subsequent movement to return to the reference position, the slider portion 50 is moved from the reference position indicated by the one-dot chain line in FIG. 5 to the firing completion position indicated by the two-dot chain line in FIG. Is returned to the firing preparation position indicated by the solid line, and the position is fixed.

With the slider section 50 once retracted by manual operation and then returned to the reference position again, the trigger 1 is pulled, and is indicated by a solid line as shown by a solid line and a two-dot chain line in FIG. From the launch preparation position,
When the movable bar 8 is rotated toward the firing completion position indicated by the two-dot chain line, the movable bar 8 moves forward. As a result, as shown in FIG. 6, the movable bar 8 is configured such that the locking portion 8 a provided on the rear side thereof rotates the rotating lever 15 in a direction against the urging force of the toggle spring 16, and thereafter, The protruding portion 8b provided on the side portion engages with the distal end portion of the movable lever 45.

The hammer 5 released from the mutual engagement with the rotating lever 15 by the advance of the movable bar 8 is movable by the urging force of the coil spring 41 as shown by a chain line in FIG. At about the same time as when the trigger 1 is rotated from the position separated from the pin 40 in the direction a and the trigger 1 is placed at the firing completion position, the firing movable pin 40 is rotated.
Is placed in a position where it comes into contact with the rear end of the fixing member 51 as shown by a solid line in FIG. Launching movable pin 40 beaten by hammer 5
Is pressed in a direction against the urging force of the coil spring 46. Accordingly, the piston member 35 is pressed by the rod 43 attached to the movable pin 40 for firing in a direction against the urging force of the coil spring 39. When the piston member 35 is pressed in this manner, the movable lever 45 is moved upward by the urging force of the coil spring 44, and presses the piston member 35 in a direction against the urging force of the coil spring 39. And a valve portion 35 provided on the piston member 35.
a is maintained at a position where the other end of the connection gas passage 36 is opened.

Thus, the bullet firing gas passage 21 opened by the valve member 27 of the gas passage control unit 25 and the pressure accumulating chamber 33 provided in the case 30 are in communication with each other. Of the gas is in the bullet firing gas passage 2
1 is obtained in a state of being supplied into the loading chamber 4a.
As a result, as shown by the solid line in FIG. 6, the bullet BB loaded in the bullet chamber 4a is moved by the gas pressure from the accumulator 33 over the annular projection 4b as shown by the one-dot chain line in FIG. The barrel 2 is moved to the front part of the annular member 4 in a state where the barrel 2 and the bullet firing gas passage 21 are shut off. At this time, the pressure accumulating chamber 33 acting on the valve member 27 for closing the bullet supply gas passage 22 is set.
The gas pressure from the coil spring 2 of the rod 26
8 is prevented from moving in accordance with the urging force of 8, the position where the bullet supply gas passage 22 of the valve member 27 is closed is maintained. When the bullet BB that has moved to the front side portion of the annular member 4 is moved into the barrel 2 by the gas pressure from the pressure accumulating chamber 33, a relatively small gap generated between the barrel 2 and the bullet BB As a result, gas leaks into the barrel 2 to accelerate the movement of the bullet BB toward the front end of the barrel 2, and the gas pressure in the central space 20 decreases.

As the gas pressure in the central space 20 decreases, the rod 26 advances due to the urging force of the coil spring 28, and the valve member 2
7 is a bullet supply gas passage 22 as shown in FIG.
Is moved toward the gas passage 21 for bullet firing. Then, the bullet BB moved into the barrel 2 by the advance of the rod 26 until the valve member 27 is in the position where the bullet firing gas passage 21 is closed as shown in FIG. Fired from barrel 2.

In this way, the valve member 27 closes the projectile gas passage 21 and closes the bullet supply gas passage 22.
Is placed in a position to communicate with the upper gas passage 38 provided in the case 30 through the central space portion 20 and the common gas passage 23, and the pressure accumulating chamber 33 filled in the bullet supply gas passage 22. The gas pressure of the bullet supply gas passage 2
2 through the communication passage provided at the rear end of the fixing member 51.
Is pressed into the direction in which it is separated from the movable member 54 and flows into the fixed member 51. As described above, the gas pressure from the pressure accumulating chamber 33 flowing into the fixed member 51 causes the slider portion 50 to retreat against the urging force of the coil spring 18, and the first movable cylindrical portion from within the fixed member 51. 52A is protruded toward the annular member 4, and the second movable cylindrical member 52B is protruded from the first movable cylindrical member 52A toward the annular member 4.

Therefore, immediately after the bullet BB is fired by the gas from the pressure accumulating chamber 33 by the rotation of the hammer 5 in response to the operation on the trigger 1, the retraction of the slider portion 50 is immediately started by the gas from the pressure accumulating chamber 33. Will be.
Further, the hammer 5 is turned in the direction opposite to the direction a by the urging force of the coil spring 41 by the fixing member 51 that retreats with the slider part 50 that retreats. Thereby, as shown in FIG.
A pressure chamber 56 having a variable volume to which the gas pressure from the pressure accumulating chamber 33 is supplied through the bullet supply gas passage 22 is formed in a pressure chamber forming portion having the first and second movable cylindrical members 52A and 52B. The hammer 5 is located at a position separated from the movable pin 40 for firing.
From the position shown by the solid line in FIG.
The urging force of the coil spring 46 causes the coil spring 46 to move to a position protruding from the grip 6 as shown by a dashed line in FIG. Thus, bullet BB from barrel 2
Is fired, the retreat of the slider portion 50 is started by the gas pressure from the pressure accumulating chamber 33 supplied into the fixing member 51 through the bullet supply gas passage 22. Therefore, when the bullet BB is fired, the slider portion 50 The influence of the movement on the barrel 2 is avoided, and the bullet BB emitted from the barrel 2 is prevented from being misaligned.

When the slider portion 50 is further retracted by the gas pressure supplied from the pressure accumulation chamber 33 to the pressure chamber 56 having a variable volume, the movable bar 8 is moved by the lower end of the second portion 50B of the slider portion 50. Is rotated in a direction in which the rear portion thereof descends. Thereby, the locking portion 8 provided on the rear side portion of the movable bar 8
a is disengaged from the rotating lever 15, and the rotating lever 15 rotates in a direction in accordance with the biasing force of the toggle spring 16 and contacts the hammer 5. Further, the movable lever 4 which engages with a protruding portion 8b provided on the rear side portion of the movable bar 8
5 is pressed downward against the urging force of the coil spring 44, and the piston member 35 is released from the position fixed by the movable lever 45.
Is moved to a position where the leading end protrudes from the case 30. As a result, as shown in FIGS. 10 and 11, the hammer 5 is fixed at a position separated from the firing movable pin 40 by the rotating lever 15, and the valve portion 35a of the piston member 35 is connected to the connecting gas passage. When the other end of 36 is placed in a closed state, the supply of gas pressure from the accumulator 33 to the pressure chamber 56 having a variable volume is stopped. That is, the piston member 35 provided with the valve portion 35a, the movable pin 40 for firing, the coil spring 46
Thus, a passage opening / closing mechanism for controlling opening / closing of the grip side gas passage formed by the lower gas passage 37, the connecting gas passage 36, and the upper gas passage 38 is formed.

From the pressure accumulating chamber 33, the pressure chamber 5 having a variable volume
Immediately after the supply of the gas pressure into the inside 6 is stopped, the slider portion 50 further retreats due to its inertia. Immediately before the slider section 50 assumes the last retreat position due to the retreat due to its inertia, the state in which the volume of the variable volume pressure chamber 56 is maximized, that is, the first and second movable cylinders forming the pressure chamber forming section The protrusion length of the members 52A and 52B is maximized, and the movable member 54 is
The movable member 54 is retracted together with the slider 50 that is retracted by inertia. As a result, the uppermost end 31a of the magazine 31 closed by the intermediate portion of the movable member 54 is opened, and the bullet BB filled in the magazine 31 at the uppermost position becomes the uppermost end 31a. The opening forming portion 54A of the movable member 54 is pushed up and held, and the opening forming portion 54A of the movable member 54 is formed with a gap formed between the lower portion of the movable member 54 and the upper end portion of the case 30.
Is released from the state in which the common gas passage 23 provided in the movable member 54 is separated from the upper gas passage 38 provided in the case 30. When the communication between the common gas passage 23 and the upper gas passage 38 is released in this manner, the gas in the pressure chamber 56 having the variable volume is released from the bullet supply gas passage 22, the central space 20, and the common gas passage. It is discharged to the atmosphere through 23.

When the gas pressure in the variable volume pressure chamber 56 starts to decrease, the movable member 54 is biased by the coil spring 55 to move the first and second movable cylindrical members 5.
2A and 52B are retracted while keeping the retracted state. Thereby, the second movable cylindrical member 52B is accommodated in the first movable cylindrical member 52A, and the first movable cylindrical member 52A is disposed in the fixed member 51, and the movable member 54 fixes the intermediate portion thereof. The member 51 is brought into contact with the member 51. In such a case, the slider unit 50
Takes the last retreat position. As soon as the slider portion 50 is at the rearmost position, the slider portion 50 is immediately moved forward by the urging force of the coil spring 18 and the slider portion 50 is moved.
The movable member 54, which advances with the advance of, transports the bullet BB held at the uppermost end 31a of the magazine 31 by its front end toward the loading chamber 4a.

Thus, when the slider portion 50 assumes the reference position, the bullet BB is securely loaded into the loading chamber 4a as shown in FIG. 5, and as shown in FIG. The opening forming portion 54A, which forms an inclined surface that descends from the loading chamber 4a toward the pressure chamber forming portion, has an opening forming portion 30A that also forms an inclined surface that descends from the loading chamber 4a toward the pressure chamber forming portion. In this state, the common gas passage 23 and the upper gas passage 3 are appropriately brought into contact with each other with no undesirable mutual displacement.
8 is in a proper communication state in which good sealing performance is maintained.

Further, the bullet B loaded in the loading chamber 4a
B, the gas passage control unit 25 in the movable member 54
The rod 26 is retracted, the valve member 27 closes the bullet supply gas passage 22, and the bullet discharge gas passage 21 is provided in the case 30 via the central space portion 20 and the common gas passage 23. Is placed in a position to communicate with the upper gas passage 38 provided. Under such circumstances, when the trigger 1 is returned from the firing completion position to the firing preparation position, the movable bar 8
Is returned to the position before the trigger 1 was pulled. Then, when the trigger 1 is pulled again, the bullet BB is fired in the loading chamber 4a and the subsequent supply of the bullet BB to the loading chamber 4a is performed as described above.

As described above, between the loading chamber 4a formed by the annular member 4 and the pressure chamber forming portion including the fixed member 51 and the first and second movable cylindrical members 52A and 52B. A gas passage control unit 25 shared by a bullet supply system and a bullet firing system is provided in a movable member 54 disposed above the grip 6, whereby a total of 1
The common gas passage 23, the upper gas passage 38, the connecting gas passage 36, and the lower gas passage 37, which form the gas passage portion,
Each of the bullet firing gas passage 21 and the bullet supply gas passage 22 controlled to be opened and closed by the gas passage control unit 25 is shared, and the gas passage control unit 25 and the loading chamber 4a and Since the distance between each of the pressure chamber forming portions and each of the pressure chamber forming portions is relatively small, the bullet firing gas passage 21 and the bullet supply gas passage 22 are shortened. 4a, and the entire gas passage from the pressure accumulating chamber 33 to the variable volume pressure chamber 56 through the inside of the movable member 54 is effectively shortened, and the structure is relatively simple. become.

Further, the grip-side gas passage formed by the upper gas passage 38, the connecting gas passage 36, and the lower gas passage 37 provided in the case 30 and positioned in the grip 6 is provided on the movable member side. Bullet firing gas passage 21 and bullet supply gas passage 22 forming a gas passage portion
Since the configuration is relatively common to each of the above and the configuration is relatively simple, an extra space is created in the case 30, so that the volume of the pressure accumulating chamber 33 can be easily enlarged.

Further, the entire gas passage from the accumulator 33 to the loading chamber 4a through the inside of the movable member 54 and the entire gas passage from the accumulator 33 to the variable volume pressure chamber 56 through the inside of the movable member 54 are reduced. As a result, the amount of gas consumed for firing the bullet BB from the barrel 2 and supplying the bullet BB to the loading chamber 4a is reduced, whereby the pressure in the accumulator 33 is gradually reduced,
In addition, the common gas passage 23 and the upper gas passage 38 are brought into an appropriate communication state in which good sealing is maintained by the opening forming portion 54A of the movable member 54 abutting against the opening forming portion 30A of the case 30. As a result, the movable member-side gas passage portion including the common gas passage 23 and the grip-side gas passage portion including the upper gas passage 38 do not prevent gas from leaking from the pressure accumulating chamber 33. Since the gas charged in the pressure accumulating chamber 33 is prevented from being unnecessarily consumed, the bullet is fired by the gas pressure from the pressure accumulating chamber 33 for a long time after the gas is charged in the pressure accumulating chamber 33. Gas passage 21 and bullet supply gas passage 22
The gas passage control unit 25 that controls the opening and closing of the cylinder is smoothly operated. As a result, the slider 50 moves smoothly along the barrel 2, and the bullet BB loaded in the bullet chamber 4a is smoothly fired. Done.

In the above example, the case 30 having the pressure accumulating chamber 33 filled with the liquefied gas in the grip 6 is used.
However, in the toy gun with an automatic bullet supply mechanism according to the present invention, the pressure accumulating chamber is replaced with a liquefied gas, for example,
The case may be filled with compressed air, and the case may be attached to the grip, for example, with a gas cylinder filled with liquefied gas or compressed air with its gas inlet connected to the accumulator. This may allow more gas pressure to be used for bullet supply and firing.

[0049]

As is apparent from the above description, according to the toy gun with the automatic bullet supply mechanism according to the present invention, the communication state and the non-communication state are set according to the reciprocating motion of the movable member accompanying the retreat and advance of the slider portion. The first gas passage portion and the second gas passage portion that selectively take the following configuration are provided in a movable member that forms an open end of the second gas passage portion. Is retracted with the retraction of the first gas passage portion, and is released from a state in which the grip portion forming the opening end of the first gas passage portion is in contact with the first opening forming portion, so that a non-communication state is established. In addition, the second opening forming portion is moved forward along with the advance of the movable member, and is brought into a state in which the second opening forming portion comes into contact with the first opening forming portion so as to be in a communicating state.
The opening forming portion and the second opening forming portion have a shape for preventing further advance of the second opening forming portion when the second opening forming portion is in opposition to the first opening forming portion. And
Thereby, the opening end of the first gas passage and the opening end of the second gas passage are opposed to each other.

Therefore, the second opening forming portion which advances with the movement of the movable member and is opposed to the first opening forming portion is
The position is regulated by the first opening forming portion so as not to cause an undesired positional displacement with respect to the first opening forming portion, and the opening end of the first gas passage portion and the second gas passage portion are placed. The open ends of the parts are maintained in contact with each other while being properly opposed to each other so as to obtain good sealing performance. As a result, under a very simple configuration, the first gas passage and the second gas passage are connected in a proper communication state in which a good sealing property is maintained.
Leakage of the gas from the connecting portion of the gas from the accumulator that is supplied to the second gas passage through the first gas passage is prevented.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a main part of an example of a toy gun with an automatic bullet supply mechanism according to the present invention.

FIG. 2 is a schematic cross-sectional view for explaining a configuration of an example of a toy gun with an automatic bullet supply mechanism according to the present invention.

FIG. 3 is a schematic cross-sectional view for explaining the configuration and operation of the example shown in FIG. 2;

FIG. 4 is a view showing a rod of a gas passage control unit that can be used in the example shown in FIG. 2;

FIG. 5 is a schematic cross-sectional view used for describing the configuration and operation of the example shown in FIG. 2;

FIG. 6 is a schematic cross-sectional view used for describing the configuration and operation of the example shown in FIG. 2;

FIG. 7 is a schematic cross-sectional view used for describing the configuration and operation of the example shown in FIG. 2;

FIG. 8 is a schematic cross-sectional view used for describing the configuration and operation of the example shown in FIG.

FIG. 9 is a schematic cross-sectional view used for describing the configuration and operation of the example shown in FIG. 2;

FIG. 10 is a schematic cross-sectional view used for describing the configuration and operation of the example shown in FIG. 2;

FIG. 11 is a schematic cross-sectional view used for describing the configuration and operation of the example shown in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Trigger 2 Barrel 4 Annular member 4a Ammunition chamber 5 Hammer 6 Grip 8 Movable bar 10 Toy gun body 15 Rotating lever 18, 28 Coil spring 20 Central space 21 Gas firing gas passage 22 Bullet supply gas passage 23 Common gas passage 23A, 38A Open end part 25 Gas passage control part 26 Rod 27 Valve member 30 Case 30A, 54A Opening formation part 31 Magazine 31a Top end part 33 Accumulation chamber 35 Piston member 36 Connecting gas passage 37 Lower gas passage 38 Upper gas passage 40 Fire Movable pin 50 slider portion 50A first portion of slider portion 50 50B second portion of slider portion 50 51 fixed member 54 movable member 56 pressure chamber BB bullet

Claims (3)

(57) [Claims] 1. A grip portion in which a magazine portion, an accumulator, and a first gas passage extending from the accumulator are disposed, and a first gas passage at a position which is an upper end portion of the grip. A first opening forming portion forming an opening end, a slider portion provided to the barrel portion and capable of moving backward and forward along the barrel portion, and a rear portion of the barrel portion in the slider portion A pressure chamber forming portion provided in a portion to be formed; a second gas passage portion formed therein;
A second opening forming portion that forms an opening end of the gas passage portion is provided, and is disposed between the loading chamber provided in the barrel portion above the grip portion and the pressure chamber forming portion, A reciprocating motion accompanying retraction and advancement of the slider portion supplies a bullet from one end of the magazine portion to the loading chamber, and takes a state in which the second gas passage portion communicates with the first gas passage portion. A first state in which the member is movably disposed in the movable member and communicates the second gas passage with the loading chamber; and a second state in which the second gas passage communicates with the pressure chamber forming part. A gas passage control unit that transitions from the first state to the second state when the second gas passage communicates with the first gas passage. When the passage communicates with the first gas passage, Serial second opening forming portion moves forward the first
And the opening end of the first gas passage and the opening end of the second gas passage are opposed to each other, and the first opening and the second gas passage are opposed to each other. Wherein the opening forming portion has a shape for preventing further advance of the second opening forming portion when the second opening forming portion is in opposition to the first opening forming portion. Toy gun with bullet supply mechanism. 2. The first opening forming section and the second opening forming section each form an inclined surface which descends from the loading chamber side to the pressure chamber forming section side, and the second opening forming section has an inclined surface. 2. The toy gun with an automatic bullet supply mechanism according to claim 1, wherein a surface of the toy gun comes into contact with an inclined surface of the first opening forming portion. 3. A first gas passage communicating with a second gas passage is opened in response to a rotation of a hammer interlocking with a trigger operated to fire a bullet supplied to the loading chamber. The toy gun with an automatic bullet supply mechanism according to claim 1 or 2, further comprising a passage opening / closing mechanism for closing the first gas passage portion by retreating the slider portion in the state.