JP5164892B2 - Autonomous control device for launching power in a compressed gas simulation gun - Google Patents

Description

  The present invention relates to a firing power autonomous control device in a compressed gas type simulated gun.

  There are guns that are treated as game guns or toy guns, and are also called gas guns, which are filled with compressed gas containing cylinders into tanks inside the gun body and fire bullets, etc. Some have a so-called blowback mechanism that imitates a real gun and retreats the slide along with the bullet firing. The blow back method uses a nozzle valve that starts blow back on the slide side while firing a bullet using a pressure difference (for example, Japanese Patent Laid-Open No. 2001-66096), and fires a bullet. In order to perform the blow back of the slide after that, there is one (for example, Japanese Patent Laid-Open No. 6-323786) having an on-off valve that switches the action direction of the compressed gas pressure between the barrel side and the slide side.

  In such a simulated gun using compressed gas as a power source, there is a problem that the gas pressure fluctuates significantly due to temperature differences, as seen in the increase in pressure at high temperatures in summer and the decrease in pressure at low temperatures in winter. There is. Even though the mock guns are set to be appropriate throughout the year, there is a problem with this type of gun that the power drops in the winter and increases in the summer and the shooting response is not constant. In particular, the problem of increased pressure will cause an unexpected impact on the hit part, and if it significantly exceeds the power determined by voluntary arrangements in the industry, the arrangement is not meaningful or unexpected. It should be noted that it may be the cause of this situation.

JP 2001-66096 A JP-A-6-323786

  The present invention has been made paying attention to the above points, and the problem is that the compressed gas can stabilize the power even at high temperatures and at low temperatures and can maintain a shooting response that is not easily affected by temperature differences. It is to provide a launching power autonomous control device in a simulated gun. Another object of the present invention is to increase the safety of the compressed gas type simulated gun by stabilizing the power provided by the launching power autonomous control device so that it can be used more safely than before.

In order to solve the above-described problems, the present invention provides a barrel for firing a bullet and a rear part of the barrel, which is provided so as to be movable in the front-rear direction of the gun body as a whole, and is disposed in a bullet part at the rear end of the barrel. A cylinder equipped with a nozzle for injecting compressed gas into the bullet, and a slide arranged at the rear of the cylinder and slidable in the longitudinal direction of the gun body by the compressed gas flowing into the cylinder A piston that moves backward with the movement of the member and can be moved forward with the movement of the slide member by a return spring, and is provided to be movable in the front-rear direction of the gun body at the front part inside the cylinder. In the compressed gas type simulated gun equipped with a nozzle valve having a gas flow path inside the compressed gas flowing into the cylinder and leading to the nozzle part,
A nozzle pipe having a gas flow passage for passing compressed gas flowing into the cylinder to the nozzle portion is provided at the front of the nozzle valve, and the nozzle valve is slidably combined with the nozzle pipe. An elastic member that urges the nozzle valve in a direction away from the nozzle pipe is disposed, and the nozzle valve resists the urging force when the pressure of the compressed gas that has flowed into the cylinder during the firing operation exceeds the urging force of the elastic member. Thus, a measure is taken so that the gas flow path of the nozzle valve is closed.

  In the present invention, the compressed gas is used as a term indicating a general gas property at a temperature at which a person lives, and in this sense, compressed air is also included. The compressed gas in the above configuration is introduced into the cylinder from the outside of the cylinder, thereby firing a bullet loaded at a predetermined position and causing a blowback operation on the slide. Used as a power source for

  The target to which the device of the present invention is applied is a barrel for firing a bullet, and a bullet located at the rear part of the barrel and movable as a whole in the front-rear direction of the gun body, and arranged at the bullet loading part at the rear end of the barrel A cylinder equipped with a nozzle for injecting compressed gas at the tip, and a slide member arranged at the rear of the cylinder and slidable in the longitudinal direction of the gun body by the compressed gas flowing into the cylinder It is possible to move back and forth in the front-rear direction of the gun body at the front part inside the cylinder and the piston provided so that it can be moved backward by a return spring (recoil spring) and moved along with the movement of the slide member. It is a compressed gas type simulation gun provided with a nozzle valve which is provided and has a gas flow path inside which allows a compressed gas flowing into the cylinder to communicate with the nozzle portion.

  In the compressed gas type simulated gun having the above-mentioned configuration, the compressed gas is introduced into the cylinder from the outside of the cylinder, and is used for projecting the bullet by injecting it toward the bullet from the nozzle portion at the tip of the cylinder. On the one hand, it is used to blow back the slide via a piston. The action of the compressed gas inside the cylinder is a system that uses a nozzle valve that starts blowback on the slide side in the course of firing a bullet using the pressure difference. Can be used.

  In the present invention, a nozzle pipe having a gas flow path for passing the compressed gas flowing into the cylinder to the nozzle portion is provided in the front portion of the nozzle valve, and the nozzle valve and the nozzle pipe are slidably fitted, In addition, the nozzle valve is configured to be urged by an elastic member so as to move away from the nozzle pipe. Therefore, since the compressed gas flows into the nozzle valve from behind, the nozzle valve is pushed forward. As a result, the biasing force of the elastic member acting on the nozzle valve and the pressure of the compressed gas counteract. While the urging force of the elastic member can be overcome by the pressure of the compressed gas, the compressed gas pressure reaches the bullet as it is, so that the firing is performed.

  In the apparatus of the present invention, in order to solve the above-described problem, the nozzle valve is set to the biasing force when the pressure of the compressed gas flowing into the cylinder during the firing operation is larger than the biasing force of the elastic member. Therefore, the gas flow path of the nozzle valve is closed. When the pressure of the compressed gas becomes excessive due to the temperature rise, the urging force of the elastic member that was opposed until then is lost, the nozzle valve moves, and the gas flow path is closed so that the excessive pressure does not reach the bullet, There is no risk of the bullet being fired at a pressure higher than that set by the elastic member.

That is, the device of the present invention is
・ At low temperature and low pressure, the valve inside the cylinder is not completely closed, and the maximum velocity is kept within the standard range by optimizing the flow rate in the gas flow path on the nozzle side.
・ When the temperature is high or high, close the valve inside the cylinder according to the gas pressure, flow velocity, etc., and keep the maximum velocity within the standard range.
The idea is implemented.
Specific means for controlling the operation of the valve inside the cylinder in accordance with the gas pressure, flow velocity, etc. include the size of the gas flow path between the nozzle valve and the nozzle pipe, the moving distance of the nozzle valve, and the valve nozzle. This is the elastic force of the elastic member, and is combined with the exhaust port described below.

  In the apparatus of the present invention, a space is provided between the outer surface of the nozzle valve and the inner surface of the cylinder in order to exhaust the compressed gas to the outside of the cylinder when the pressure of the compressed gas is larger than the biasing force of the elastic member. In addition, an exhaust port can be provided on the inner surface of the front side of the cylinder. Even if these spaces or exhaust ports are not provided, a desired effect is achieved in a range where the pressure rise is not significant. However, when the pressure rise becomes significant, the operation tends to become unstable. Therefore, by adding the compressed gas exhaust configuration described above, the pressure difference at the front of the cylinder with respect to the pressure at the rear of the cylinder into which the compressed gas flows is secured, and the maximum value of the bullet velocity is achieved while stabilizing the high-speed operation of the nozzle valve. Is within the standard range.

  The nozzle valve has a cylindrical shape with a penetrating gas flow path in the center, and the nozzle pipe has a valve head that closes the gas flow path when it contacts the valve seat provided in the gas flow path of the nozzle valve. In addition, when the valve head does not contact the valve seat, it is possible to select a cylindrical gas flow path that communicates with the gas flow path of the nozzle valve in front of the valve head. This is the most desirable form among various forms. In this embodiment, since the gas flow path of the nozzle valve and the gas flow path of the nozzle pipe are located at the center of the cylinder, the compressed gas is directed substantially straight to the bullet. However, when the thickness of the nozzle valve is sufficiently large, or when it is necessary to remove the center of the cylinder by design, it is natural that the present invention can be implemented without arranging the gas flow path at the center of the cylinder. In addition, the nozzle valve is not required to have a linear penetration structure, just as the nozzle pipe does not require a linear penetration structure.

  The nozzle pipe is arranged immediately after the nozzle part inside the cylinder, and the base part is a spring receiver that receives the front part of the elastic member arranged with the rear part in contact with the nozzle valve. A pipe can be fixed, which is also an easy-to-implement form. On the other hand, the nozzle pipe is formed as a part of the cylinder by integral molding immediately after the nozzle part inside the cylinder, and the front part of the elastic member arranged with the rear part in contact with the nozzle valve is placed at an appropriate place around it. It is also possible to easily implement the form of receiving at

  Since the present invention is configured as described above, and the biasing force of the elastic member acting on the nozzle valve and the pressure of the compressed gas counteract, as a launching power autonomous control device in a compressed gas type simulated gun, even at high temperatures In addition, the power can be relatively stabilized even at low temperatures, and it is possible to maintain a shooting response that is hardly affected by the temperature difference. In addition, according to the present invention, even in a situation where the temperature is high depending on the season and land where the simulated gun is used, the increase in the pressure of the compressed gas related to the launch is suppressed and the safety of the compressed gas type simulated gun is improved. You can use a compressed gas simulation gun.

  Hereinafter, the firing power autonomous control device in the compressed gas type simulated gun of the present invention will be described in more detail with reference to the illustrated embodiment. FIG. 1 shows a compressed gas type simulated gun 10 to which the launching power autonomous control device of the present invention is applied. Reference numeral 11 denotes a gun body to which each member and parts are attached, 12 denotes a cylindrical structure, and a bullet is attached. It is a barrel for firing, and a loading section 14 for loading a bullet 13 is provided at the rear.

  The gun body 11 is provided at the rear end of the barrel 12 so as to be movable in the front-rear direction of the gun body as a whole, and is provided with a nozzle portion 15 for injecting compressed gas to the bullet loading section 14 at the rear end of the barrel. A cylinder 16 is provided. A slide member 17 is provided on the upper portion of the gun main body 11 so as to be slidable in the front-rear direction of the gun main body 11, and the rear portion inside the cylinder is moved by the compressed gas flowing into the cylinder as the slide member 17 moves. The piston 20 is disposed so as to be moved backward by a return spring (recoil spring) 18 so as to move forward with the movement of the slide member 17 (see FIG. 2). A slide mechanism including the slide member 17, the return spring 18 and the recoil guide 19 is well known and can be used, and detailed description thereof is omitted.

  The cylinder 16 has a structure opened at the rear end with respect to the nozzle portion 15 at the front end, and the piston 20 is further retracted from the rear end opening of the cylinder 16 at the maximum retreat. Can do. On the other hand, when the piston 20 moves forward, the urging force of the return spring (recoil spring) 18 of the slide member 17 is used, and is returned forward as the slide member 17 moves. Reference numeral 21 denotes a stopper, and 22 denotes an O-ring. Further, a compressed gas inlet 23 is opened between a front end portion of the cylinder 16 at the forward position of the piston 20 and a rear end portion of the nozzle valve 25, which will be described later.

  A nozzle valve 25 is provided at the front part inside the cylinder 16 so as to be movable in the front-rear direction of the gun body 11 and has a gas flow path 24 through which the compressed gas flowing into the cylinder communicates with the nozzle part 15. It has. The illustrated nozzle valve 25 has a cylindrical shape, the gas flow path 24 passes through the center, the cylinder inner diameter expands forward, and a stepped portion having an inverse taper is provided at a step portion of the inner diameter. Constitutes a valve seat 26 provided in the gas flow path 24.

  A nozzle pipe 27 is disposed at the foremost part inside the cylinder 16. The nozzle pipe 27 has a valve head 28 that contacts the valve seat 26 provided in the nozzle valve 25 and closes the gas flow path 24 at the rearmost portion. The illustrated valve head 28 is in surface contact with the toilet seat 26. It is formed in a reverse taper shape. Further, the nozzle pipe 27 has a gas flow path 29 that communicates with the gas flow path of the nozzle valve 25 when the valve head 28 does not contact the valve seat 26 in front of the valve head. The nozzle pipe 27 is also generally cylindrical, but its rear end is closed by the valve head 28, so that it is directed from the axial direction to the radial direction at the rear end of the gas flow path 29 and is open to the side surface.

  The illustrated nozzle pipe 27 has a base portion 27 a in a flange shape, and serves as a spring receiver for receiving the front portion of an elastic member 30 formed of a coil spring disposed in contact with the front end portion 25 a of the nozzle valve 25. Yes. As a result of this structure, the nozzle pipe 27 is fixed by being pressed against the step 16 a at the front portion of the cylinder 16 by the elastic member 30. However, as described above, the nozzle pipe 27 may be provided by integral molding immediately after the nozzle portion inside the cylinder without using the nozzle pipe 27 as a separate part.

  The apparatus of the present invention further has a configuration in which a space 31 is provided between the outer surface of the nozzle valve 25 and the inner surface of the cylinder 16 and an exhaust port 32 is provided on the inner surface on the cylinder front side. In the illustrated case, the space 31 is formed between the front end portion 25 a of the nozzle valve 25 and the flange-like root portion 27 a of the nozzle pipe 27, and the exhaust port 32 passes through the space portion 31 and the outside of the cylinder 16. The compressed gas is finally discharged outside the gun body 11. The front part inside the cylinder 16 is formed as a front chamber part 16a in which the nozzle valve 25 and the like are arranged, and the inner mouth part is also formed as a rear chamber part 16b in which the piston 20 is arranged so as to have a larger diameter than the front chamber part 16a. Has been.

  When the description of the compressed gas type simulated gun 10 incorporating the launching power autonomous control unit 33 configured as described above is captured, reference numeral 34 is a tank filled with liquefied gas, and 35 is an opening / closing valve of the vaporized gas outlet. Yes, when not operated, the valve is closed by the spring 37, and the valve is opened by striking the knocker 36. Reference numeral 38 denotes a hammer, which is urged in the direction of striking the knocker 36 by a hammer spring 39 that is caused to accumulate, and performs a striking action via a trigger bar 41, a shear 42,. Do. Although a further description of a known configuration related to a specific structure is omitted, the bullet that has been held down by the lip 44 of the magazine 43 as the cylinder 16 moves is moved backward. Thirteen loading parts 14 are loaded.

  The present invention configured as described above will be described below. 3 to 8 relate to the operation at a low temperature. In this example, the temperature is set to about 0 to 30 ° C. FIG. 3 shows a state in which no operation is performed, and therefore corresponds to FIGS. 1 and 2. FIG. 4 shows a state in which the hammer 38 is raised, and this state is brought about by blowback of the slide member 17. However, when the first bullet is fired, the slide member 17 is manually retracted to cause the hammer 38 to be loaded. To make it ready for launch.

  When the trigger 40 is pulled (FIG. 5), the hammer 38 is rotated by the hammer spring 39 via the shear 42 and the like, and the open / close valve 35 is struck via the knocker 36 to open the vaporized gas inside the tank 34. Flows into the inside of the cylinder 16 from the inlet 23 located in the middle part thereof. The compressed gas that has flowed in passes through the gas flow path 24 of the nozzle valve 25, the gas flow path 29 of the nozzle pipe 27, and the nozzle portion 15 of the cylinder 16, and the bullet 13 loaded in the loading portion 14. The bullet 13 starts moving inside the barrel 12 (FIG. 6).

  When the bullet 13 leaves the barrel 12 and enters a firing state, the pressure inside the barrel suddenly decreases and the pressure inside the cylinder 16 increases relatively, so that the piston 20 starts moving backward together with the slide member 17 ( FIG. 7). This is the beginning of the so-called blowback operation. When the slide member 17 is retracted, the hammer 38 is caused by contacting the part 17a, the knocker 36 is retracted and the on-off valve 35 is closed, and the increase in the pressure inside the cylinder is stopped. The movement can be changed from the backward limit position to the forward position (FIG. 8). From the lip 44 of the magazine 43 opened by the retraction of the slide member 17, the bullet 13 at the tip is pushed into the loading unit 14 by the nozzle unit 15 that advances, and the loading is completed, and the state returns to the state of FIG. 3. Therefore, as long as the trigger 40 is pulled and compressed gas is supplied, the above operation is repeated.

  In the present invention, the following operation is performed in order to keep the bullet velocity within the standard range when the temperature is higher than about 30 ° C. FIG. 9 shows a state in which no operation is performed, and thus corresponds to FIGS. FIG. 10 shows a state in which the hammer 38 is raised, and this state is brought about by blowback of the slide member 17. However, when the first bullet is fired, the slide member 17 is manually retracted to load the bullet 13 and prepare for firing. The completion state is the same as that at the low temperature.

  When the trigger 40 is pulled at a high temperature (FIG. 11), the hammer 38 is rotated by the hammer spring 39 via the shear 42 and the like, and the on-off valve 35 is opened by being struck through the knocker 36. The vaporized gas flows into the cylinder 16 from the inlet 23 located in the middle portion thereof. The compressed gas that has flowed in passes through the gas flow path 24 of the nozzle valve 25, the gas flow path 29 of the nozzle pipe 27, and the nozzle portion 15 of the cylinder 16, and enters the bullet 13 loaded in the loading portion 14. The bullet 13 starts to move inside the barrel 12 as in the low temperature (FIG. 12). However, since the pressure of the compressed gas is high, the urging force of the elastic member 30 is overcome, the nozzle valve 25 moves forward, and the flow rate is reduced between the valve seat portion 26 and the valve head portion 28. As a result Since the high pressure is not injected to the bullet 13 as it is, the maximum value of the bullet velocity is suppressed within the reference range. The high pressure of the compressed gas is discharged from the exhaust port 32 to the outside through the space 31 between the outer surface of the nozzle valve and the inner surface of the cylinder (FIG. 12).

  When the bullet 13 is fired away from the barrel 12, the pressure inside the barrel suddenly decreases and the pressure inside the cylinder 16 increases relatively, so that the piston 20 moves backward as the slide member 17 moves. The blowback operation is started (FIG. 13). Then, while the internal pressure of the cylinder 16 overcomes the urging force of the elastic member 30, the compressed gas is exhausted from the exhaust port 32 to the outside. Further, when the slide member 17 is retracted, a hammer 38 that contacts the part 17a is caused, and when the knocker 36 is retracted and the on-off valve 35 is closed, the pressure inside the cylinder stops increasing, and the slide member 17 moves. The position changes from the reverse limit position to the forward position (FIG. 14). Thereafter, the bullet 13 at the tip is pushed from the lip 44 of the magazine 43 opened by the backward movement of the slide member 17 into the loading portion 14 by the advancing nozzle portion 15 to complete the loading, returning to the state of FIG. You can repeat the operation. That is, it is the same as at low temperature.

  Since the apparatus of the present invention does not require a linear penetration structure for the nozzle valve, an example will be described with reference to FIG. Although the nozzle valve 25 'in this example is cylindrical, the rear gas flow path 24b is formed in the radial direction perpendicular to the central axis, and the gas flow path 24 in front of the rear gas flow path 24' Although passing through the center, the inner diameter of the cylinder expands forward, and a step portion having an inverse taper shape is provided at a step portion of the inner diameter, and a valve seat 26 ′ of the gas flow path 24 is provided at this step portion. The nozzle pipe 27 may have the structure of the above-described example, and has a valve head 28 at the rear end that closes the gas flow path 24 ′ by contacting a valve seat 26 ′ provided in the nozzle valve 25 ′. The valve head 28 is formed in a reverse taper shape so as to come into surface contact with the toilet seat 26. That is, although the nozzle pipe 27 is also generally cylindrical, it is closed by the valve head 28 and is therefore directed from the axial direction to the radial direction at the rear end of the gas flow path 29 and opened to the side surface. In the case of this example, it is possible to introduce a larger amount of compressed gas by providing a large number of the rear gas flow paths 24b in the radial direction.

  Since the present invention is constructed and operates as described above, the specific means for closing the upper limit of the pressure of the compressed gas acting on the loaded bullet 13 in accordance with the gas pressure, the flow velocity, etc. is a nozzle. It is managed by the size of the gas flow path between the valve and the nozzle pipe, the moving distance of the nozzle valve, the elastic force of the elastic member that urges the valve nozzle, and the like. With such a configuration, the operation of the simulated gun is stabilized, and the upper limit of the power of the simulated gun can be managed, so that the safety can be improved.

It is side surface explanatory drawing which shows the compressed gas type simulation gun to which an example of the launch power autonomous control apparatus which concerns on this invention is applied. It is a principal part enlarged view of an apparatus same as the above. It is explanatory drawing which shows the operation state at the time of the low temperature of an apparatus same as the above. Similarly, it is a state where the hammer is caused in the explanatory diagram at the low temperature. Similarly, the trigger is drawn in the explanatory diagram at low temperature. Similarly, in the explanatory view at low temperature, the bullet has started moving. Similarly, the bullet is fired in the explanatory diagram at low temperature. Similarly, blowback is performed in the explanatory view at the low temperature. It is explanatory drawing which shows the operation state at the time of the high temperature of an apparatus same as the above. Similarly, in the explanatory diagram at the time of high temperature, the hammer is caused. Similarly, the trigger is drawn in the explanatory diagram at high temperature. Similarly, in the explanatory diagram at the time of high temperature, the bullet has started moving. Similarly, the bullet is fired in the explanatory diagram at high temperature. Similarly, blowback is performed in the explanatory view at high temperature. It is a principal part enlarged view which shows the example which has the nozzle valve of a different form of the apparatus same as the above.

DESCRIPTION OF SYMBOLS 10 Compressed gas type simulation gun 11 Gun main body 12 Barrel 13 Bullet 14 Loading part 15 Nozzle part 16 Cylinder 17 Slide member 18 Return spring 19 Recoil guide 20 Piston 21 Stopper 22 O-ring 23 Inlet 24, 24 ', 29 Gas flow path 25, 25 'Nozzle valve 26, 26' Valve seat 27 Nozzle pipe 28 Valve head 30 Elastic member 31 Space part 32 Exhaust port 33 Launching power autonomous control unit 34 Tank 35 On-off valve 36 Knocker 37 Spring 38 Hammer 40 Trigger 42 Shear 43 Magazine 44 Lip

Claims (5)

A barrel for firing a bullet, and a nozzle portion which is located at the rear of the barrel and is movable in the front-rear direction of the gun body as a whole, and which injects compressed gas to the bullet placed at the bullet loading portion at the rear end of the barrel With the cylinder provided at the tip and the compressed gas that has been placed in the rear of the cylinder and has flowed into the cylinder, it is retracted and returned as the slide member is slidable in the longitudinal direction of the gun body. A piston provided so as to be able to move forward with the movement of the slide member by a spring, and provided in a front part inside the cylinder so as to be movable in the front-rear direction of the gun body. In a compressed gas type simulated gun equipped with a nozzle valve having a gas flow path leading to the inside,
A nozzle pipe having a gas flow passage for passing compressed gas flowing into the cylinder to the nozzle portion is provided at the front of the nozzle valve, and the nozzle valve is slidably combined with the nozzle pipe. An elastic member that urges the nozzle valve in a direction away from the nozzle pipe is disposed, and the nozzle valve resists the urging force when the pressure of the compressed gas that has flowed into the cylinder during the firing operation exceeds the urging force of the elastic member. And a firing power autonomous control device in a compressed gas type simulated gun configured to move and thereby close the gas flow path of the nozzle valve. 2. A fire power autonomous control device for a compressed gas type simulated gun according to claim 1, wherein a space is provided between the outer surface of the nozzle valve and the inner surface of the cylinder, and an exhaust port is provided on the inner surface of the front side of the cylinder. The nozzle valve has a cylindrical shape with a penetrating gas flow channel in the center, and the nozzle pipe has a valve head that closes the gas flow channel when it contacts the valve seat provided in the gas flow channel of the nozzle valve. And a gas passage that communicates with a gas passage of a nozzle valve when the valve head is not in contact with the valve seat. Autonomous control device for launching power in a compressed gas type simulated gun. 2. The compressed gas type according to claim 1, wherein the nozzle pipe is disposed immediately after the nozzle portion inside the cylinder, and the base portion is a spring receiver that receives the front portion of the elastic member disposed with the rear portion in contact with the nozzle valve. Autonomous power control device for simulated guns. The firing power autonomous control device for a compressed gas type simulated gun according to claim 1, wherein the nozzle pipe has a structure provided by integral molding immediately after the nozzle portion inside the cylinder.

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