KR100517411B1 - A paint-gun with an improved barrel - Google Patents

Abstract

The present invention relates to a gas gun used in a survival game or a training of a police officer or an army having a barrel structure that allows a paintball to fly farther while preventing an inner burst of the paintball.

Gas gun according to the present invention is characterized in that a plurality of through holes are formed in the middle half of the barrel.

According to the present invention, even if the length of the barrel is increased or the impact gas pressure is increased, the paintball does not rupture in the barrel, and a game gas gun capable of firing the paintball farther and more accurately is possible.

Description

Gaming gas gun with improved barrel structure {A Paint-Gun with an Improved Barrel}

The present invention relates to a gas gun with improved barrel of gas guns used in survival games, police and military training, and more particularly, in a gas gun for games where paintballs are fired by the impact of compressed gas. It relates to a gas gun with a barrel structure that allows paintballs to fly farther while preventing the burst.

Gas guns used in survival games, police and military training (hereinafter referred to as "survival gas guns" or "gas guns") are used for games and trainings that are simulated combat situations. It is a gas gun designed to make sure the bullet is fired and hit the target. The projectile used herein has an outer shell that can be easily ruptured without damage to the target when hit by the target, and is embedded inside the outer shell, and when the target is hit by the target, the outer shell is ruptured and dispersed to perform a marking function on the target. It is generally a paintball composed of a water-soluble pigment solution.

The structure of the gas gun for the launch of such a projectile (paintball) is as follows. That is, the structure of the gas gun is a barrel having an internal hollow formed so that the projectile passes, a gas supply device (gas chamber) for receiving (mounting) the projectile at the front and supplying compressed gas to the rear, and connecting the gas supply device. The internal space basically includes a gas tank part filled with gas for providing propulsion force to the projectile, and a driving valve for opening and closing the gas supply pipe to selectively supply gas from the gas tank part to the projectile. Of course there are various devices that connect and control the interaction of these components.

The key to the gun's performance is its range and accuracy, which are a combination of the size and structure of the paintball, the pressure on the back of the paintball (hereinafter referred to as the gas pressure), the length of the barrel and the frictional force. Is determined. Assuming that the paintball is a simple sphere, the larger the paintball size, the greater the air resistance (surface drag) after firing, so the range is reduced, and the greater the gas pressure applied to the back of the paintball, the greater the impact on the paintball. Range is increased. On the other hand, if the length of the barrel is longer, the gas pressure increases the time to apply the force to the rear of the paintball, not only increases the range but also maintains the direction of the paintball for a long time, thereby increasing accuracy.

However, even if the paintball reaches the target (human body) at maximum speed (impact), it should not affect the human body (impact or injury) ② Therefore, it should be made of soft material that can be easily ruptured to the impact that does not affect the human body. ③ It should be easy to determine whether it hit the target, so the harmless paints inside the human body should be built in. ④ Therefore, there are limitations such as the need to have more than a certain diameter. There is a limit to coordination. That is, if the gas pressure is greater than the impact resistance of the paintball, the paintball bursts inside the barrel, and even if the same impact resistance is equal to the paintball and gas pressure, if the length of the barrel is long, the paintball moves forward in the direction of the paintball in the barrel. Air resistance (surface drag) is concentrated, causing paintballs to burst in the barrel.

Therefore, according to the prior art, the three characters [(Strength of paintball)-(Strength of gas pressure)-(Length of barrel)] are mutually contradictory in terms of increasing range and accuracy. That is, according to the prior art, it is inherently impossible to increase the strength of the paintball at a range, and to increase the gas pressure, it is necessary to reduce the length of the barrel (to prevent the paintball from rupturing) and increase the length of the barrel. In order to reduce the gas pressure or to reduce the barrel and paintball diameters, it was impossible to dramatically increase the range or increase the accuracy of the paintball.

SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a gas gun in which paintballs are fired farther and more accurately without bursting even if the length of the barrel is increased or the gas pressure is increased.

The present invention for solving the technical problem as described above relates to a gas gun in which a plurality of through holes are formed in the middle half of the barrel of the gas gun used for the simulation combat training or survival game. In the present invention, the barrel refers to the part where the paintball is loaded from the muzzle.

According to the preliminary experiments of the present inventors (not shown in the data), in the case where a plurality of through holes are formed in the quarter area of the barrel from the muzzle side, since the effect of reducing the air resistance (surface drag) in front of the paintball appears later, the paintball It is more likely to burst within this barrel. Also, when a large number of through-holes are formed in the quarter of the barrel from the barrel side, the front air resistance (surface drag) to the paintball is initially reduced, but the rear gas pressure drops rapidly at an early stage, reducing the range of the paintball. The adverse effect is that

The through hole is preferably formed radially symmetric with respect to the central axis of the barrel. If the through-hole is not formed in the radially symmetrical type, the internal air is disturbed and the trajectory of the paintball is irregular. In addition, the through-hole is not limited, such as circular or oval or other polygonal shape, but is preferably circular in consideration of ease of processing, aesthetics and the like.

In the present invention, the diameter of the through hole is preferably 1/5 to 1/20 of the barrel diameter. If the diameter is larger than 1/5, the gas pressure behind the paintball is reduced, so the thrust of the paintball's motion is reduced, and the effect of increasing the range and the accuracy is insignificant. The effect of reducing the air drag (surface drag) is negligible, making paintballs more likely to burst in the barrel.

In addition, in the present invention, the total area of the through hole is preferably 0.06 to 3.0% of the inner surface area of the barrel part (ie, the middle 1/2 area of the barrel) in which the through hole is formed. If the surface area is greater than 3.0%, not only can the paintball be damaged by the through hole, but the thrust of the gas pressure behind the paintball is reduced, resulting in increased range and accuracy. The effect of reducing the air resistance (surface drag) is negligible, which increases the likelihood of the paintball bursting in the barrel. It is preferable that the larger the surface area of the through hole, the smaller the diameter of the through hole is.

The gas gun according to the present invention will be described with reference to the drawings.

1 is a cross-sectional view showing a phenomenon in which the paintball ruptures in the barrel (particularly long) according to the prior art, Figure 2 is a cross-sectional view showing the effect of preventing the burst of the paintball in the barrel according to the present invention. 3 is a conceptual view showing the arrangement of the through-holes in the barrel according to the present invention. 1 and 2 schematically show only the barrel, the charge part and the charge chamber part of the gas gun.

Omitting the description of the change in the details of the device operating during the firing process of the gas gun, the compressed gas in the gas supply device is opened by the click of the trigger, which pushes the rear of the paintball loaded in the chamber strongly. The kinetic energy of the paintball is obtained by the pressure of the compressed gas. In this case, since the front of the paintball is opened only by the muzzle, the air inside the barrel is gradually compressed by the progress of the paintball and acts as an air resistance (surface drag). The ball will be pressed. In this state, the air resistance in front of the barrel of the paintball is almost proportional to the length of the barrel. Therefore, the length of the barrel is longer (longer barrel), so the sum of the surface drag caused by the compressed air in front of the paintball and the pressure caused by the compressed gas behind the paintball is beyond the internal pressure range of the paintball shell. Bursting inside the barrel.

To prevent this, if a predetermined size and a predetermined number of through holes are formed in a range of the middle half of the barrel, such as a barrel in the gas gun of the present invention, a result different from the above will appear (FIG. 2). In this case, the front of the paintball is opened by the through holes formed in the muzzle and the barrel. Therefore, as the paintball progresses, a part of the compressed air formed in front of the paintball is discharged to the outside through the through hole, thereby reducing the degree of compression of air (that is, surface drag). That is, since the surface drag formed in front of the paintball is relatively small in the barrel according to the present invention, the paintball proceeds in the pressure resistance range of the paintball shell.

However, according to the present invention, after the paintball passes through the through hole, a part of the compressed gas applied from the rear of the paint ball is discharged to the outside through the through hole, so that a side effect of reducing the thrust applied to the paint ball occurs. However, according to the law of inertia, once a small thrust is applied to an object that has a speed, it continues to move, so the effect of reducing the range caused by side effects is to supply a continuous momentum by the residual compressed gas (because the barrel is long, As the time acting on the back of the paintball is longer, the effect of increasing the range is small.

Hereinafter, the present invention will be described in more detail with reference to Examples and Application Examples. However, these examples are for illustrative purposes only and the present invention is not limited thereto. In the following examples, the experiment was conducted on the basis of one long barrel for convenience, but it will be apparent to those skilled in the art that various modifications may be made with reference to the technical scope of the present invention and the following examples.

Example: Preparation of Barrels with Various Through Holes

For mounting on an M16 gas gun (SYM16), a barrel of 17.5 mm in diameter and a length of 550 mm (the distance from the muzzle to the actual loading position of the paintball, i.e. the length of the barrel in the present invention is 557 mm) is as shown in Table 1 below. Through holes were formed in the form. The distance between the through holes is about 1.0 ~

1.3 cm was made. Distance means distance from the muzzle. The through holes were arranged radially with respect to the barrel central axis, as described above.

The arrangement of the through holes in the barrel according to each embodiment is conceptually represented in FIG. 3.

diameter (mm) amount Area ratio (%) * location Control - 0 0.00 - Example 1 1.5 40 0.23 20 starting at 31 cm, starting at 22 cm Example 2 1.5 56 0.32 28 units starting at 31 cm 28 points starting at 22 cm Example 3 2.0 20 0.21 20 starting at 31 cm Example 4 2.0 20 0.21 20 starting at 22 cm Example 5 1.5 28 0.16 28 starting at 25 cm Example 6 1.5 26 0.15 6 starting at 31 cm, 6 starting at 22 cm (3 through) Example 7 1.5 318 1.84 Arranged over the entire barrel except 15cm on both sides

In the table, the area ratio (%) represents the area of the through hole relative to the inner surface area of the middle half of the barrel.

Application example: launch test

The maximum speed and minimum speed of the paintball at a distance of 5 cm from the muzzle while firing the paintball in various ways using the barrel-mounted M16 gas gun (SYM16) manufactured in the above embodiment, whether the burst in the barrel of the paintball And the like. The speed of the paintball was measured with a speed gun. Paintball was used as the standard 17mm diameter commercially available.

In the table, the unit of speed is km / hr.

In the following, "normal yarn" is 1 shot / 2 seconds, "continuous yarn" is 3 shots / 1 second, and "continuous / non-continuous yarn" means repeating five consecutive yarns and five ordinary yarns.

If the paintball ruptured in the barrel, the number of shots that were ruptured was checked and marked as "rupture (second)" in the table. If the ball ruptures, the barrel will be contaminated, so the ball will continue to burst even if you continue firing experiments. Therefore, it was meaningless to continue experimenting with contaminated barrels, so once they were ruptured, the firing experiment was stopped. If the paintball rupture did not appear in the barrel even after 100 shots, the additional test was omitted and marked as "no" in the table.

The gas pressure (output) at the time of launch is represented by the minimum output that the maximum output is made the maximum pressure and the minimum pressure is made the maximum pressure through the adjustment of the gas pressure regulating unit as the reference output using the actual pressure.

(1) Continuous yarn at reference output

Continuous pressure was performed using gas pressure as the reference output (Table 2).

Control Room 1 Room 2 Room 3 Room 4 Room 5 Seal 6 Seal 7 Speed 225 243 240 241 239 244 242 196 Speed 121 234 207 128 117 123 229 183 Rupture (the first) 22 radish radish 79 41 57 radish radish

As can be seen from the table, it was confirmed that the embodiment according to the present invention has an effect of reducing paintball burst more than twice as compared to the control. In particular, in the case of Examples 1, 2, 6, 7, even if 100 consecutive paintballs did not cause any problem of rupture.

In addition, in the example of the present invention, the maximum speed was similar to that of the control, but the lowest speed was similar to the control in Examples 3, 4, and 5, and in Examples 1, 2, 6, and 7, it was much higher than the control.

From this, it was confirmed that the gas gun according to the present invention not only significantly improves the phenomenon of paintball rupture even in a relatively long barrel compared to the conventional gas gun, but also reduces or decreases the firing speed of the paintball with continuous use.

(2) continuous / discontinuous yarns at various outputs

Continuous / discontinuous yarns were performed at various outputs for Examples 1, 2 and 6, which showed particularly good effects in the previous application (1) (Table 3).

Gas pressure Information Control Room 1 Room 2 Seal 6 Output Speed 192 194 186 195 Speed (% of maximum speed) 126 (65.6) 176 (90.7) 173 (93.0) 180 (92.3) Rupture (the first) 25 radish radish radish Reference output Speed 239 248 238 246 Speed (% of maximum speed) 122 (51.0) 239 (96.4) 229 (96.2) 238 (96.7) Rupture (the first) 19 radish radish radish Output Speed 281 284 271 284 Speed (% of maximum speed) 146 (52.0) 269 (94.7) 250 (92.3) 265 (93.3) Rupture (the first) 14 radish radish 75

As can be seen from the table, in the case of the gas gun according to the present invention, the phenomenon that the paintball bursts in the barrel is significantly reduced. That is, at the minimum-reference-maximum output, the control ruptured the paintball in the barrel at the 25th, 19th, and 14th shots, respectively, except that Example 6 ruptured the 75th paintball at full power. The burst did not appear even after firing 100 times.

In addition, in the case of the gas gun according to the present invention, the maximum speed of the paintball at the minimum-reference-maximum output is similar to that of the control, but the minimum speed was excellent in all conditions. The minimum speed compared to the maximum speed was 50-65% in the control, but in the examples, the firing speed was maintained at 90% or more.

Therefore, according to the gas gun according to the present invention, the burst of the paintball is greatly reduced or absent at all the gas pressure outputs, and the minimum firing speed is very high even in the continuous firing.

According to the present invention, even if the length of the barrel is increased or the impact gas pressure for increasing the range is increased, the paintball does not rupture in the barrel, and even in continuous shooting, the minimum firing range (lowest firing speed) is maintained at a certain line or more and farther. In this way, it becomes possible to provide a gas gun in which the paintball is fired more accurately.

1 is a flow chart showing a phenomenon in which the paintball ruptures in the barrel (especially long) according to the prior art.

Figure 2 is a conceptual diagram showing the effect of preventing the tear of the paintball in the barrel according to the present invention.

3 is a conceptual view showing the arrangement of the through-hole in the barrel according to the present invention.

Claims (4)

For gas guns used in mock combat training and survival games, A gas gun, characterized in that a plurality of through holes are formed in the middle half of the barrel of the gas gun. The method of claim 1, The through-hole is a gas gun, characterized in that formed radially with respect to the central axis of the barrel. The method according to claim 1 or 2, The diameter of the through hole is a gas gun, characterized in that 1/5 ~ 1/20 of the barrel diameter. The method according to claim 1 or 2, And the total area of the through holes is 0.06 to 3.0% of the inner surface area of the middle half of the barrel of the gas gun.