JP4022214B2 - Weapon model bullet trajectory correction device - Google Patents

Abstract

The device has right and left pins (3d, 3g) forming two bosses (6d, 6g), respectively for retention of a missile in a barrel (1) of a weapon. The pins are situated symmetrically on both sides of a vertical reference axis (XX) passing via a center of the barrel, and are introduced across the barrel support. The pins have screws (4d, 4g) with adjustment knobs (5d, 5g) that adjust the heights of the bosses.

Description

FIELD OF THE INVENTION The present invention relates to an apparatus for correcting a bullet trajectory in an “airsoft gun” or “soft air” type weapon model that fires an ultralight plastic bullet having a diameter of approximately 6 millimeters. Is. More particularly, the present invention relates to the correction of the trajectory of a plastic bullet that emerges from the barrel of a weapon model. Bullet trajectory correction can be carried out in the same way for both long and small weapon models, both vertically and horizontally.

  The main field of application of the invention is in the field of spring-loaded or electric long weapons, and in particular long weapon models such as electric rifles.

  The present invention is particularly applicable to weapon models whose bullets are plastic bullets. The present invention can also include a small weapon model.

In the field of prior art weapon models, numerous models of firearms have been duplicated for the purpose of producing toys for adults and / or children. These weapon models typically fire plastic bullets, such as plastic bullets, instead of real weapon bullets or lead pellets. As such, weapon models generally contain drawbacks that stem from the manufacture of the model itself. These shortcomings, typically located within the firing system or barrel, cause the bullet to deflect as it exits the weapon. For example, bullets can deflect to the right by exiting a weapon, to the left on the other side, and even up and down. These drawbacks are almost inevitable and are simply due to manufacturing tolerances. These disadvantages are particularly troublesome for rifle-type long weapon models with long firing ranges. Obviously, in practice, the longer the bullet reach, the greater the trajectory of the bullet trajectory.

  Currently, no corrections in ballistic trajectory are used in most long weapon models.

  However, there is a system for correcting the trajectory of bullets emanating from the weapon model's barrel vertically. This system, called the hop-up system, consists of a rubber pin located inside the weapon barrel, at the input, perpendicular to the center of the barrel. More precisely, the rubber pin is positioned at the top of the barrel, on the vertical axis that traverses the weapon barrel in the center of the weapon barrel. This rubber pin has the function of holding and directing bullets. In fact, this rubber pin roughly maintains the bullet fired by the firing system before leaving the weapon barrel. This action of maintaining the bullet while exiting the barrel provides a rotational effect on the bullet in its exit trajectory. As a result of this rotational effect, the bullet rises, ie the bullet trajectory is corrected upwards. However, the bullet's weight itself offsets the bullet's intentional ascending trajectory, which causes a horizontal bullet trajectory as soon as the bullet exits the barrel.

  As can be understood by reading this description, this hop-up system can only correct the vertical trajectory of the bullet trajectory. For this reason, as mentioned above, weapon model manufacturing defects can lead to both vertical and horizontal trajectory defects.

BRIEF DESCRIPTION OF THE INVENTION The object of the present invention is to solve the problems of the system just described. For this purpose, the present invention proposes a device for correcting the trajectory of bullets emanating from the barrel of an electric long weapon, which can be vertical or even both vertical and horizontal. To this end, the device of the present invention consists of placing two rubber pins positioned symmetrically on either side of a vertical axis passing through the center of the barrel.

  More precisely, the present invention relates to a correction device for a bullet trajectory emanating from a model barrel, which includes a first pin forming a first retaining boss of a bullet within the barrel, the correction device comprising a barrel Including a second pin forming a second retaining boss of the inner bullet, the first and second pins being symmetrically positioned on opposite sides of the vertical axis passing through the center of the gun barrel.

  Advantageously, the height of the first and second bosses in the gun barrel is adjustable, thereby allowing all possible adjustments for a given effect on the bullet to optimize firing accuracy.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows one embodiment of a trajectory correcting device according to the invention.

  2A and 2B show a second embodiment of the trajectory correcting device of the present invention.

  FIG. 3 shows a target showing the bullet impact obtained for various adjustments of the device of the present invention.

  FIG. 4 shows a modification of the trajectory correcting apparatus of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION FIG. 1 is a front cross-sectional view of a barrel of an electric long weapon, such as a rifle model. This electric long weapon, more simply a weapon or a weapon model, comprises the trajectory correcting device of the present invention. In FIG. 1, the weapon barrel is represented by 1. The gun barrel includes an inner surface 1i and an outer surface 1e. The barrel includes a barrel joint 2 along its inner surface 1i. This barrel joint 2 is made of an elastic material such as rubber as usual.

  The point C shown at the center of the gun barrel indicates the geometric center of the gun barrel through which the vertical axis indicated by XX passes, similarly to the horizontal axis HH.

  In a form consistent with the present invention, the barrel 1 is provided with a bullet trajectory correcting device. This device comprises a first pin 3d (right pin) and a second pin 3g (left pin), and the first and second pins respectively form a first boss 6d and a second boss 6g inside the barrel 1. To do. These pins 3d and 3g are arranged symmetrically on both sides of the vertical axis XX and above the horizontal axis HH. In the example of FIG. 1, the pins 3d and 3g are arranged at an angle of approximately 40 degrees with respect to the vertical axis XX.

  The screws of the pins 3d and 3g may be introduced into the barrel through the barrel 1 itself. The screw may be introduced across the barrel support and the barrel itself. In the latter case, this makes it possible to place an adjustment knob near the base of the weapon model. At this time, the shooter can easily adjust the height of the boss while aiming at the target.

  In the embodiment of FIG. 1, each pin 3d and 3g includes a screw 4d and 4g, respectively, which sink into the barrel joint 2 and form bosses 6d and 6g by pressure on the joint, respectively. In this embodiment, knobs 5d and 5g are mounted on each screw 4d and 4g, respectively, to allow adjustment of the height of the screw sinking in the joint 2. Therefore, when each screw is screwed into the barrel 1 in this manner, the screw sinks into the joint 2 to produce a rather large boss.

  The boss height adjustment system thus rotates.

  In other words, the height adjustment of each screw sinking in the joint 2 adjusts the height of each boss. The bosses 6d and 6g can thus have the same height or, conversely, different heights.

  The function of each of these bosses is to hold it somewhat when the bullet is fired from the barrel. This holding makes it possible to change the trajectory of the bullet coming out of the barrel. By having different boss heights, the trajectory can be changed horizontally. In other words, it is possible to change the bullet vertically by the presence of the boss itself. Differential adjustment of the boss height allows the bullet trajectory to be changed horizontally, that is, right or left. In fact, when the boss has a low height, this reduces the effect on it during the passage of the bullet, and conversely, when it has a high height, this is relative to that during the passage of the bullet. Increase action.

  As can be seen, when the bosses 6d and 6g have the same height, i.e. when the knob of the pin 3d and the knob of the pin 3g are adjusted the same, the bullet trajectory cannot be changed horizontally; It is modified only on the surface. On the other hand, when the bosses 6d and 6g have different heights, this affects the bullet trajectory in the horizontal and vertical planes.

  In particular, when the left boss 6g is higher than the right boss 6d, then the launch is directed to the left. Conversely, when the right boss 6d is higher than the left boss 6g, then the launch is directed to the right.

  One example of firing orientation is shown in FIG. More precisely, FIG. 2 shows a target on which three bullet firings have been performed.

  The result of the first launch T1 shows that the bullet was only corrected vertically. The right 6d and left 6g bosses are therefore identical.

  The result of the second launch T2 is directed to the right of the vertical axis XX. This indicates that the height of the right boss 6d is higher than that of the left boss 6g.

  Conversely, the result of the third launch T3 is positioned to the left of the vertical axis XX. This indicates that the left boss 6g was larger than the right boss 6d.

  FIG. 2 shows that by changing the height of the bosses 6d and 6g, the bullet trajectory can be changed not only in the vertical plane but also in the horizontal plane. As you can see, the correction of the bullet trajectory in the entire space allows the correction of almost all of the trajectory defects of the weapon model.

  In FIG. 3A, a side view shows a second embodiment of the device of the present invention. In this embodiment, the adjustment pin is represented by 8. The pin 8 includes, for example, a ledge 9 made of a plastic material, for example rubber, mounted on an elastic piece 10 made of metal. The ledge 9 is fixed to one end of the elastic piece 10 by any fixing means, for example, adhesion or drilling. The elastic piece 10 is fixed to a control rod 11 made of metal, for example, over a specific length, for example, half of the length.

  In order to allow the projection 9 to pass through, a hole 13 is made in the barrel 1. In this way, the ledge 9 is maintained in the hole 13 at the position selected by the shooter. The ledge 9 thus forms a boss within the gun barrel of the weapon. The height of the boss is controlled by a control rod 11 combined with the elastic piece 10. More precisely, the elastic piece 10 maintains the ledge 9 somewhat more completely in the hole 13. To do this, the elastic piece is extended by a control rod 11 on which the elastic piece 10 is fixed. Therefore, the more the control rod 11 is pulled toward the shooter, the more the elastic piece 10 is extended, and the ledge 9 is introduced incompletely into the hole 13, thereby shortening the boss. On the contrary, as the control rod is pushed toward the barrel support 7, the elastic piece 10 is loosened, and the ledge 9 enters the hole 13 more completely, thereby increasing the boss. Thus, when the control rod 11 is pushed to the maximum extent toward the gun barrel 1, the elastic piece 10 is then placed against the outer surface of the gun barrel 1, and as a result, the protrusion 9 is remarkably located inside the gun barrel. A boss is created at the maximum height without the risk of getting in and clogging up a little larger bullets, because the flexibility of the elastic piece allows its release! On the other hand, when the control rod 11 is maximally pulled toward the archer, then the elastic piece 10 is extended to the maximum (as shown in FIG. 3A), so that the bulge is maximized in the hole 13. The boss is not generated.

  To facilitate this push-pull operation of the control rod 11, the control rod 11 may include a lever 12, and this lever may be an extension of the control rod bent at an angle of 90 degrees with respect to the horizontal axis HH, for example. It can be. In this case, as shown in FIG. 3B, the lever 12 traverses an elongated hole 15 made in the weapon frame 14.

  By pushing or pulling the lever 12 slightly, the shooter can directly act on the height of the boss formed by the ledge 9. This embodiment makes it possible to obtain a system for adjusting the linear height of the boss. Such a linear adjustment has the advantage that it is easier for the shooter to measure. In fact, since the lever 12 is visible in the elongated hole 15, the shooter can see the level of the boss, ie, no boss, low, average, high, maximum and all levels of the intermediate boss. .

  3A and 3B show a single boss and a single adjustment system for the height of this boss. Of course, as can be seen here, for the first embodiment (shown in FIG. 2), the trajectory correcting device according to this second embodiment also consists of two symmetrical bosses, each of which has an independent height. Adjusted by the control system (control rod, elastic piece, etc.).

  Regardless of which embodiment is selected, the trajectory correction device is placed just behind the barrel entry, where the bullets are fired outward. In a first embodiment, the boss adjustment system is located outside the weapon, approximately at the location where the bullet is fired. In a second embodiment, the boss adjustment system has the advantage that it can be moved, i.e. it can be placed close to the selected location of the weapon, e.g. the archer.

  As a variant of the invention, the trajectory correction device may not be adjustable. At this time, an economic weapon model can be equipped. In this case, the correction device comprises two bosses located on the upper part of the barrel, on both sides of the axis XX. These two bosses 6d and 6g are identical to those shown in FIG. 1 except that their height cannot be adjusted. The boss at this time is manufactured by a rubber hemisphere formed on the inner surface of the barrel 1. In this variation, during the rotation effect, the single boss maintains the bullet, and the bullet is better retained than in the known case where the bullet may be slightly displaced to the left and right of the firing axis. In this way, the device makes it possible to reduce the variability of the firing and improve the firing coherence during the series of firings.

  In another variant, the location of the bosses 6d and 6g on the inner surface of the barrel 1 is adjustable. This variant is shown in FIG. In this variant, the bosses are the same as those in the variant described above, and the correction device includes a knob 16 fixed on the barrel 1 equidistant from the two bosses 6d and 6g. Since the gun barrel (or part of the gun barrel containing two bosses) can rotate freely, the knob 16 pivots the gun barrel 1 in the gun barrel support 7 and consequently moves the bosses 6d and 6g relative to the axis XX. Enable.

  By rotating such a barrel completely or partially to the left and right of the axis XX, it is possible to correct the firing to the left and right of the axis XX. In other words, this barrel rotation makes it possible to modify the trajectory of the bullet horizontally.

It is a figure which shows one embodiment of the track correction apparatus by this invention. FIG. 5 shows a target showing the bullet impact obtained for various adjustments of the device of the present invention. It is a figure which shows the 2nd embodiment of the track correction apparatus of this invention. It is a figure which shows the 2nd embodiment of the track correction apparatus of this invention. It is a figure which shows the modification of the track correction apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Barrel 2 Barrel joint 3d, 3g pin 4d, 4g Screw 5 Knob 6d, 6g Boss 7 Barrel support 8 Adjustment pin 9 Protrusion 10 Elastic piece 11 Control rod 12 Lever 13 Hole 14 Frame 15 Elongated hole 16 Knob

Claims (9)

A trajectory correcting device for a bullet coming out of a gun barrel of the weapon model, the trajectory correcting device including a first pin (3d) forming a first boss (6d) for holding a bullet in the gun barrel,
A second pin (3g) forming a second boss (6g) that holds a trajectory in the barrel, the first and second pins being on the horizontal axis (HH) passing through the center of the barrel, Trajectory correcting device, characterized in that it is positioned symmetrically on both sides of a vertical axis (XX) passing through the center (C).   The apparatus of claim 1, wherein the height of the first and second bosses in the gun barrel is adjustable.   Device according to claim 1 or 2, characterized in that the first and second pins each comprise a screw (4d, 4g) with an adjustment knob (5d, 5g).   Device according to claim 3, characterized in that each screw of the pin pushes in a barrel joint of elastic material forming a boss.   Device according to claim 1 or 2, characterized in that the first and second pins each comprise a ledge (9) secured to the elastic piece (10).   6. A device according to claim 5, characterized in that the gun barrel includes a hole (13) for the passage of the ledge for each ledge.   7. Device according to claim 5 or 6, characterized in that the elastic piece (10) is deformed by a control rod (11).   The device according to claim 5, wherein the ledge is an elastic material.   The device according to claim 5, wherein the elastic piece is a metal.

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