JPS638399B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention emits a light beam from a gun muzzle toward a target, detects the center position of a circular area irradiated with the light beam on the target, and uses the center position to determine whether the light beam The present invention relates to a light emitting device for a light beam gun used in a light beam shooting competition in which players compete for points based on hit locations.

BACKGROUND ART Live-fire shooting competitions, such as air rifle shooting competitions, have traditionally been widely held as a sport in countries around the world based on regulations established by the International Shooting Union (UI-T). In this air rifle shooting competition, an air rifle with a caliber of 4.5 mm and a weight of 5 kg or less is used to shoot 40 or more shots at a fixed target 10 m in front.
It is a competition in which 60 bullets are fired and the score (out of 400 or 600 points) is determined by the position of the bullet on a fixed target.

On the other hand, in Japan, due to legal restrictions imposed by the Firearms and Swords Possession Control Law, shooting competitions using live ammunition cannot be widely held as a sport, and for this reason, instead of live ammunition, light beams are used as targets equipped with light-receiving elements. A beam rifle shooting competition was developed in which the target was fired from the muzzle, the center position of the area irradiated with the light beam on the target was detected, and that position was used as the hit point of the light beam to compete for points. This has been adopted as an official event at the National Athletic Meet (National Athletic Meet) in accordance with the regulations established by the Japan Rifle Shooting Association. In this beam rifle shooting competition,
It is specified that a light beam with a brightness of approximately 3000 lux is emitted from the muzzle and irradiated on a target 10 meters in front of the target in a circular area with a diameter of 75 mm.The light beam guns used in such beam rifle shooting competitions are
The light-emitting device includes a light-beam light-emitting circuit for forming a light beam, and this light-emitting circuit has a charging/discharging circuit. The discharge triggers a light emitting circuit to cause a light emitter, such as a flashlight discharge tube, to emit light.

Air rifle guns used in air rifle shooting competitions have a mechanism called a bolt action mechanism (also called a Mauser action mechanism), which allows bullets to be loaded into the gun one by one. It is specified to have a so-called "non-self-loading" configuration. This bolt action mechanism is operated by a bolt action lever.

Accordingly, even in beam rifle shooting competitions, the light beam gun has a bolt-action lever similar to that of an air rifle for live ammunition, and the trigger must be pulled only through the operation of this lever. The structure is such that the trigger switch is actuated and the next light beam can be emitted.

However, in conventional light beam guns, the mechanism that allows the trigger to be pulled by operating this bolt action lever is complex, has many parts, and is difficult to manufacture. However, the disadvantage was that the light beam gun was expensive.

Therefore, the present invention aims to provide a novel light emitting device for a light beam gun, which has an extremely simple configuration and is capable of providing a "non-automatic loading type" function even in a light beam gun. It will become clear from the detailed description of an example with reference to the drawings.

FIG. 1 shows a light beam gun equipped with a light emitting device according to the present invention as a whole with reference numeral 1, including a trigger 2, a bolt action lever 3, a light beam light emitting circuit 4,
The light emitting circuit 4 includes a light emitting body 5, a lens system 6, a DC low voltage power source 7, etc., and the light emitting circuit 4 is operated by a trigger switch S1 operated by a trigger 2 and a bolt action lever 3 as a charging actuator. and a charging switch S2 that is activated by the charging switch S2. By pulling the trigger 2, the trigger switch S1 triggers the light emitting circuit 4, thereby causing the light emitting body 5 provided in the gun barrel 8 to emit light, and transmitting the emitted light through the lens system 6. The beam is converted into a beam 9 and fired from the muzzle 10.

FIG. 2 shows the light beam light emitting circuit 4, which is comprised of a primary charging/discharging circuit 11, a high voltage direct current power source 12 consisting of a DC-DC converter, and a secondary charging/discharging circuit 13.

The primary charging/discharging circuit 11 is centered around a large-capacity charging/discharging capacitor C1, and includes, in its charging path, a natural discharge compensation resistor R1 having a relatively large resistance value, and a charging resistor R1 having a relatively small resistance value. and a resistance R2 of
It has a charging switch S2 which is a micro switch having a normally open contact a, a normally closed contact b and a movable contact c, and the discharge path has a normally closed switch S2 which is activated by pulling the trigger 2 as described above. A trigger switch S1 consisting of a micro switch having a contact d, a normally open contact e and a movable contact f, and a normally open switch S3
It has a coil L1 of a relay M equipped with. The normally open contact a and the normally closed contact b of the charging switch S2 are connected to the positive side of the capacitor C1 through a resistor R1 and a resistor R2, respectively, and the movable contact c is connected to the low voltage DC power supply 7 via the power switch S4. Connected to the positive side. Further, the normally open contact e of the trigger switch S1 is connected to the positive electrode side of the capacitor C1 through the coil L1, the movable contact f to the negative electrode side, and the normally closed contact d is not connected. Further, the negative electrode side of the capacitor C1 is connected to the negative electrode side of the low voltage DC power supply 7. The values of capacitor C1, resistor R1, and resistor R2 are, for example, C1=470μF, R1=
150KΩ and R2=100Ω, therefore, the charging time constant of capacitor C1 and resistor R1 is about 70 seconds, and the charging time constant of capacitor C1 and resistor R2 is about 6/1000 seconds.

The trigger switch S1 is operated by a trigger device as shown in FIG.
In this trigger device, the trigger 2 is connected to the trigger arm 1.
It is connected to 4. As is clear from FIG. 4, which is an exploded perspective view, the trigger arm 14 has a T-shaped configuration as a whole, and has a cylindrical trigger connection at the lower end into which the trigger 2 is inserted and connected. It has a main plate part 16 which is provided with a section 15 and extends in the vertical direction, and an actuation plate part 17 which is bent from the main plate part 16 and can be extended left and right. One end (right end in the figure) of the actuating plate portion 17 is bent downward to form an actuator 18. A hole 19 is formed in the main plate portion 16 on the side of the actuating plate portion 17, and a cylinder 20 is fixed concentrically to the back surface of the hole 19.
0 has a screw groove 22 at the tip protruding from the mounting plate 21.
The pivot pin 23 having a diameter is inserted through the washer 24, and the nut 25 is screwed into the threaded groove 22, so that the trigger arm 14 is rotatably attached to the mounting plate 21. There is.

The trigger switch S1 is a micro switch, and is fixed to a fixed part (not shown) of the trigger arm 14 on the actuator 18 side. The microswitch itself has a known configuration, so although illustration and detailed explanation are omitted, it has a contact mechanism and a snap action mechanism inside a casing 26 made of an insulating material, and a push button 27 outside. When the push button 27 is pressed, a snap action mechanism is activated, and the contact mechanism is opened and closed with a snap action and a click sound. It is something that

In the micro switch as described above, the actuator 28 is made of an elastic plate whose base end is attached to the housing 26 and extends toward the trigger arm 14. Third
When the actuator 28 is provided so as to be swingable in a clockwise direction as shown in the figure, and the actuator 28 is swung counterclockwise in FIG. , the push button 27 is pressed at a point P on the actuator 28 to open and close the contact mechanism of the micro switch. The trigger switch S1 made of such a micro switch is
Since the actuator 18 of the trigger arm 14 is in contact with the actuator 28 at a point Q, which is a position between the free end of the actuator 28 and the point P, when the trigger 2 is pulled as described later, be activated. The trigger arm 14 is rotationally biased in the counterclockwise direction in FIG. 3 about the pivot pin 23 by the actuator 28, which is rotationally biased in the clockwise direction in FIG. 3 about the point O. However, a stopper consisting of a screw shaft is screwed onto the mounting plate 21 and protrudes upwardly so as to be adjustable, on a portion 29 of the actuating plate portion 17 of the trigger arm 14 on the side opposite to the actuator 18 side. 30 comes into contact with the trigger arm 1.
4 is locked in the counterclockwise direction in FIG. 3, so that the trigger 2 maintains its normal position as shown in FIG. Further, the mounting plate 21 is provided with a stopper 31 formed of a screw shaft that is screwed onto the mounting plate 21 and protrudes upwardly so as to be adjustable.

In a trigger device having such a configuration, if the trigger arm 14 is rotated clockwise in FIG. 3 by pulling the trigger 2 against the biasing force of the actuator 28, a point on the actuator 28 At the position Q, the actuator 18 in contact with the actuator 28 swings in the direction of pressing the push button 27. However, since the stopper 31 is provided on the mounting plate 21 and projects upward, As shown in the figure, the actuator 28 is placed at the stopper 3 at the point N of its free end.
Therefore, the rocking motion of the actuator 28 is held at a predetermined position before the actuator 28 is actuated to operate the contact mechanism of the micro switch as the trigger switch S1. Such a position can be arbitrarily obtained by adjusting the height of the tip of the stopper 31.

Next, when the trigger 2 is pulled further from the position shown in FIG. At this point, it is bent and the push button 27 is pressed, and at this point the contact mechanism of the microswitch is activated for the first time.
The snap action is transmitted to the shooter's finger on the trigger 2 via the push button 27 - actuator 28 - actuator 18 - trigger arm 14, and the click sound reaches the shooter's ear. It is.

In the trigger device having the above-described configuration, the trigger operation is a so-called "two-stage pull" configuration, and the tension in the first stage is based on the rotational biasing force of the actuator 28.
Further, the tension of the second stage is obtained based on the deflection of the actuator 28, respectively.

FIG. 7 shows a mechanism for operating the charging switch S2 inserted in the charging path of the primary charging/discharging circuit 11 in FIG. It is provided so that it can move forward and backward in the axial direction after being rotated by a predetermined angle around the axis by operating the lever 3.
A tapered inclined surface 33 is formed at the tip of the tip. A roller 35 of a charging switch S2, which is a micro switch, has a push button 34 and an actuator 36, which is a plate with a roller 35 at its tip, is brought into contact with this inclined surface 33. When the rod 32 is in the position pushed to the right in the figure as shown in FIG.
is in contact with the base end of the inclined surface 33 serving as an operating surface, and is maintained in its normal position, in which the push button 34 of the charging switch S2 is pressed. In this position, the charging switch S2 has contacts c and a closed, as shown by the solid line in FIG. 2, but if the shooter holds the bolt action lever 3 and By operating the rod 32, the rod 32 is moved to the left as shown in FIG. 8, and then returned to its normal position as shown in FIG. 7, whereby the push button 34 is temporarily released and pressed again. Therefore, the operation in which the contacts c and b of the charging switch S2 are switched to be closed, as shown by the dotted line in FIG. 2, and the contacts c and a are closed again. It is what is done.

Referring again to FIG. 2, the high voltage DC power supply 12
It consists of a DC-DC converter. Since this itself is well known, a detailed explanation will be omitted.
300V).

The secondary charging/discharging circuit 13 is centered around a capacitor C2 of relatively small capacity, and the primary coil L2 of a step-up transformer T, which has a resistor R3, a primary coil L2, and a secondary coil L3 in its charging path, raises the resistor R3. The positive terminal of the voltage DC power supply 12 is connected to the primary coil L2 as the negative terminal, and the normally closed switch S3 of the relay M is connected between the connection midpoint of the resistor R3 and the capacitor C2 and the negative terminal of the power supply 12. capacitor C2,
A discharge path is formed by the switch S3 and the primary coil L2. The capacitor C2 and the resistor R3 that constitute the secondary charge/discharge circuit 13 are, for example, C2=
It has a value of 4700pF, R3=1.5MΩ, and the step-up transformer T has a step-up ratio of 1:20.

The light emitter 5 is a flash discharge tube F having an anode A, a cathode K and a starting pole G, and the anode A is connected to a power source 12.
The positive pole side of is connected via the high frequency choke L4, and the starting pole G is connected to the secondary coil L3 of the step-up transformer T.
connected to one end of the The other end of the cathode K and the secondary coil L3 is connected to the negative electrode side of the power source 12.

In the above configuration, when the power switch S4 is now closed and the bolt action lever 3 is pulled as shown in FIG. 8, the DC low voltage E1 of the low voltage DC power source 7 is switched to the contact b side. The voltage is applied to both ends of the capacitor C1 through the contacts c and b of the charging switch S2 and the resistor R1, and the capacitor C1 is immediately charged with a time constant of C1×R2. If the bolt action lever 3 is returned to the position shown in FIG. 7 in this state, the charging switch S2 is switched to the contact a side, and the resistance R
1 compensates for the natural discharge of capacitor C1, so that capacitor C1 is always kept charged. The voltage E1 is also applied to a high-voltage DC power supply 2, which is a DC-DC converter, and a DC high voltage E2 is generated from its output side, and this voltage E2 is also applied between the anode A and cathode K of the flash discharge tube F. At the same time, the voltage is applied to both ends of the capacitor C2 via the resistor R3 and the primary coil L2, thereby charging the capacitor C2.

In this state, when trigger 2 is pulled, contacts e and f of trigger switch S1 are closed, and both ends of capacitor C1 are connected to coil L of relay M.
1, a discharge path is formed in the primary charge/discharge circuit 11, and the electric charge stored in the large capacity (for example, 470 μF) capacitor C1 is discharged, causing a current to flow through the coil L1. flows,
Therefore, relay M is activated and switch S3 of secondary charging/discharging circuit 13 is closed. By closing this switch S3, a discharge path is formed in the secondary charging/discharging circuit 13, and the charge stored in the capacitor C2 is discharged, and the primary coil L of the step-up transformer T is
2, and therefore the secondary coil L3
A high voltage is generated, which is applied between the starting pole G and the cathode K of the flash discharge tube F to generate a starting discharge, which causes an arc discharge between the anode A and the cathode K to produce a flash. The discharge tube F is used to generate a flash of light. This flash is emitted from the muzzle 10 of the beam gun 1 shown in FIG. 1 as a light beam 9 through the lens system 6.
In this case, even if the shooter releases the trigger 2 after such light emission and returns the trigger switch S1 to the open state and opens the discharge path of the primary charge/discharge circuit 11, the resistor R1 remains as described above. Since the capacitor C1 has a relatively high resistance value (for example, 150KΩ) and a large capacity (for example, 470μF), its charging time constant is large (for example, about 70 seconds), and the charge on the capacitor C1 is not immediately increased. Not charged and trigger 2 again
Even if the trigger switch S1 is closed by pulling the trigger switch S1, the relay M does not operate, and therefore the flash discharge tube F cannot emit light. However, if you operate the bolt action lever 3 to switch the charging switch S2 to the contact b side, and then return it to the contact a side, the primary charge switch will be activated when the switch S2 is switched to the contact b side. In the charging/discharging circuit 11, a resistor R2 having a relatively low resistance value (for example, 100Ω) is inserted in the charging path, so that the capacitor can be connected with an extremely small charging time constant (for example, 6/1000 seconds). When C1 is charged and the trigger 2 is pulled, light is emitted from the flash discharge tube F and a light beam 9 is emitted from the muzzle 10.

As is clear from the above description, according to the light emitting device for a light beam gun according to the present invention, the light beam light emitting circuit 4 is connected to the bolt action lever 3 as a charging actuator provided in the light beam gun 1. The charging switch S2 is inserted into the charging path of the primary charging/discharging circuit 11, so that after the trigger 2 is pulled and the light beam 9 is emitted, the bolt is activated. When the shutter lever 3 is operated, the capacitor C1 is immediately charged and the next light beam 9 can be emitted.

Therefore, according to the light emitting device for a light beam gun according to the present invention, even though it has an extremely simple configuration, the light beam gun 1
The light beam gun 1 can be configured as a "non-automatic loading type" similar to an air rifle that fires live bullets.
This has the effect of improving the operability and reliability of the system.

According to the above-mentioned example of the light beam gun light emitting device according to the present invention, the charging actuator for actuating the charging switch S2 is shown as the bolt action lever 3, but this charging actuator is different from this. It may be constructed with levers or push buttons having different configurations, and various other modifications may be made without departing from the spirit of the invention.

[Brief explanation of the drawing]

Fig. 1 is a side view of a light beam gun equipped with a light emitting device for a light beam gun according to the present invention, Fig. 2 is a connection diagram of its light beam light emitting circuit, and Figs. 3 to 6 are its trigger device. A side view, an exploded perspective view of essential parts, a side view showing sequential operations, and FIGS. 7 and 8 are side views showing the bolt action mechanism. In the figure, 1 is a light beam gun, 2 is a trigger, 3 is a bolt action lever, 4 is a light beam light emitting circuit, 5
is a light emitter, 6 is a lens system, 7 is a low voltage DC power supply,
9 is a light beam, 11 is a primary charging/discharging circuit, 12 is a high voltage DC power supply, 13 is a secondary charging/discharging circuit, 14 is a trigger arm, 27 and 34 are push buttons, 28 and 3
6 is an actuator, 32 is a rod, 33 is an inclined surface, 35 is a roller, S1 is a trigger switch, S
2 is a charging switch, C1 and C2 are capacitors, R1 to R3 are resistors, M is a relay, T is a step-up transformer, and F is a flash discharge tube.

Claims (1)

[Scope of Claims] 1. A primary charging/discharging circuit that is charged by a DC power source, a high voltage DC power source that is a DC-DC converter connected to the DC power source, and that is charged by the high voltage DC power source. a secondary charging/discharging circuit, and a flash discharge tube connected to the high-voltage DC power supply and starting a flash discharge based on a discharge current flowing through a discharge path of the secondary charging/discharging circuit. A charging switch actuated by a charging actuator actuated by a bolt action lever provided on the light beam gun is inserted in the charging path of the primary charging/discharging circuit. A trigger switch, which is operated by pulling a trigger provided on the light beam gun, is inserted into the discharge path of the primary charging/discharging circuit, and the trigger switch is inserted into the discharge path of the secondary charging/discharging circuit. A light emitting device for a light beam gun, characterized in that a switch is inserted which is activated based on the discharge current flowing through the discharge path of the primary charging/discharging circuit by the operation of the trigger switch.