RU2464064C1 - Area for sporting - Google Patents

Abstract

FIELD: sports.

SUBSTANCE: area for sporting which is target shooting from hunting weapon. Live cartridges are replaced by an electronic device consisting of the elements ensuring formation of impulse from trigger and striking mechanism, its delay in an amount corresponding to the flight time of the charge to the goal, the pulse length according to the diagram of the shot-gun spray (overextension of shot-gun charge), emission of the light impulse according to splash zone for the entire flight range of the shot-gun charge and the level of lowering of the charge, registration of a light impulse at a moving target. Shooting is imitates both by a shot and the bullet. The area can be located indoors, the security measures are excluded, limits for visitors are lifted, the illusion of hunting in the real world is created.

EFFECT: possible control of mistakes in aiming of the shooter with subsequent correction of his actions.

Description

The invention relates to the field of sports, in particular to shooting from hunting weapons. Currently, round stands, trench stands, as well as sporting grounds are used to conduct competitions and develop skills in marking firing at moving targets from hunting weapons. Throwing machines are installed on the stands, sending targets from different heights and at different angles, and the arrows are placed on different numbers and move after the shot. Targets fly rectilinearly and almost uniformly. Sporting grounds use the landscape and are distinguished by a wide variety of target paths.

All these devices have the following disadvantages:

1. To place them requires a significant area.

2. The allocated area must satisfy the safety requirements and therefore must be located at a sufficiently large distance from the locations of people.

3. For training and competition, only persons with hunting rifles are allowed.

4. As a consequence of paragraphs 1, 2 and 3, the mass of this sport is limited.

5. The disadvantage of the stands, in addition, is the limited types of trajectories of moving targets.

The prototype of the proposed device is a platform for sporting. The sporting platform, where shooting from hunting weapons is carried out on moving targets whose trajectories are inscribed in the landscape, differs from the prototype in that it is proposed to use it instead of a live cartridge in order to reduce the area of the site, reduce security requirements and increase the mass character of this sport on it an electronic device consisting of a transmission in series connected: a contact, a short-pulse shaper, a delay line with an adjustable value of the delay time, pulse generator with an adjustable pulse duration, a light source with an adjustable scattering angle and direction of radiation, the voltage from which can be supplied to the contact and the pulse shaper, and at the reception from the radiation recorder and signal device, light and sound.

The transmitter can be placed in the barrel of the gun, and the receiver on the target, and the signal device can be either individual or group. In the latter case, the transmission of signals from the target to the signaling device can be carried out both on the air and via wires, which can be used as rails used to move the target along its path. The rails for moving the target can be located on both cylindrical and hemispherical surfaces, which allows you to realize any desired trajectory of movement, as well as variable speeds of the target by controlling their movement on rails. If you control the target using a computer, this device will combine sports functions with entertainment functions. In this case, it is advisable to fulfill the targets in the form of imitations of real targets, the linear dimensions of which must correspond to different distances.

It is advisable to place the shooting site in the center of the above-mentioned surfaces at a distance of 10-15 meters from them. Storting platform may be located indoors.

The circuit of the electronic device is shown in the drawing.

The electronic device operates as follows. Contact 1 closes under the action of the trigger mechanism of the gun, while the voltage jump from the current source is fed to the input of the short-pulse former 2, which can be used as a differentiating chain. The generated short pulse arrives at the input of the delay line 3 and after a time interval T appears at the input of the pulse shaper with an adjustable pulse duration 4, the generated pulse of duration t, in turn, excites a light source 5, which emits a light pulse with a radiation scattering angle and angle tilt relative to the line of sight. A light pulse when it hits the target triggers the recorder 6 and the signal device 7.

In the practical implementation of the proposed device, in addition, it is necessary to provide for the possibility of switching on the light source for constant burning in order to check and configure the device.

The time interval T is the time from the moment the trigger mechanism of the gun is triggered until the charge overcomes the distance to the target. The value of the time interval T is a function of the range arrow selected at will, i.e. imaginary distance from the arrow to the target D and is determined by the formula:

Where

- V (0) is the speed of flight of the charge at the muzzle end;

- V (D) is the speed of the charge at a range D.

Expression (1) in terms of its physical meaning is two terms: the first expresses the time taken by the charge of the barrel of the gun, and the second - the time taken by the charge to reach the target from the muzzle of the gun. The meaning of the parameters of expression (1) are known [1].

Expression (1) was obtained under the assumption that the charge movement occurs with uniform acceleration, which does not fully correspond to reality, however, other factors act on the charge movement, for example, the individual properties of the weapon, the method and quality of loading cartridges, weather conditions, the nature of the terrain, etc. The influence of these factors exceeds the inaccuracy caused by the accepted assumption.

The pulse duration t depends on the magnitude of the “extension” of the shot charge S (D) = 0.1D [1] and can be determined by the ratio:

To determine the scattering angle of light radiation, we use the following reasoning. The shape of the shotgun sheaf of a hunting rifle has the shape of a cone with a vertex at the point where the trajectory begins. The shape of the affected area has two distinct areas: the first - up to 35 meters inclusive and the second - more than 35 meters. In the first section, the affected area coincides with the shape of the shot sheaf. In the second section, the affected area also has the form of a cone, which, due to the dispersion of the shot, is turned upside down by 180 degrees. The bases of the cones coincide. The height of the cone of the second section of the affected area is determined by the maximum possible distance of hitting the target, reduced by 35 meters.

Given the above, to determine the scattering angle of light radiation, we use the expression:

Where

- r is the radius of the base of the cone of the affected area at a distance of 35 meters;

- Dmax - the maximum range at which a target from a hunting rifle is possible.

If the selected distance D exceeds a range of 35 meters, then it is necessary to introduce a correction for a decrease in charge, i.e. determine the angle of inclination of the light beam relative to the line of sight of the gun:

Where

- h (D) is the amount of charge reduction as a function of distance.

The values of this function at the basic points for fractions with a diameter of not more than three millimeters are known: h (<= 35) = 0, h (40) = 1.1 cm, h (50) = 6.9 cm, h (60) = 14 , 8 cm [1]. The beam tilt angle is of practical importance only at a distance of 60 meters, at which it is equal to 9 minutes (from trigonometric tables).

In the practical implementation of the proposed device, the distance D can have three gradations: short, for example up to 25 meters, medium - 26-45 meters and long - over 46 meters.

The values of the variable parameters for specific distance values (20 m, 35 m, and 50 m) when firing shot with a diameter of three millimeters are shown as an example in the table.

Selected firing distance D Time interval T (s) Pulse Duration t (c) Scattering angle Short 20 m 0.056 0.006 1.6 deg Average 35 m 0.104 0.014 1.6 deg Far 50 m 0.157 0,025 0.46 degrees

When calculating the parameters, the following initial data were taken: V (0) = 450 m / s, V (20) = 303 m / s, V (35) = 238 m / s, V (50) = 197 m / s [1 ].

When calculating the scattering angle of the light beam, the radius of the base of the cone of the affected area at a distance of 35 m is 0.375 m [2], and the maximum range is Dmax = 70 meters, based on the practice of firing modern hunting rifles that have longer trunks than guns, for which are given data for example. The maximum range of damage also depends on the diameter used and the muzzle narrowing of the barrel.

When "shooting" a bullet, the pulse duration t can be equal to the duration of a short pulse, the scattering angle of the light beam must be zero, and the remaining parameters (time interval T and the angle of the beam) should be determined based on the bullet trajectory.

The specified parameters and dimensions of the targets are set in accordance with the distance selected by the shooter, so the proposed device is able to create an illusion of hunting in real conditions in a limited space (distance to targets 10-15 meters). In this case, it is possible to control the aiming errors of the shooter with the subsequent correction of his actions.

Literature

1. Handbook of the hunter-athlete. T.1. State Publishing House "Physical Culture and Sports", Moscow, 1955

2. Double-barreled hunting gun IZH-27. Passport, Izhevsk, RIO Goskomizdat UA SSR, 1982

Claims (1)

A platform for sporting, where shooting from hunting weapons is carried out on moving targets, the trajectories of which are inscribed in a landscape that differs from the prototype in that, in order to reduce the area of the site, reduce security requirements and increase the mass of this sport, instead of a live cartridge It is proposed to use an electronic device consisting of a transmission in series connected: a contact, a short-pulse shaper, a delay line with an adjustable value of the delay time, pulse generator with an adjustable pulse duration, a light source with an adjustable scattering angle and direction of radiation, the voltage from which can be supplied to the contact and the pulse shaper, and at the reception from the radiation recorder and signal device - light and sound.