JPH0424639B2 - - 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 that center position to This invention relates to a light beam gun used in light beam shooting competitions in which points are competed based on the location of the beam.

Live ammunition shooting competitions, such as air rifle shooting competitions, have traditionally been widely practiced as sports in countries around the world based on regulations established by the International Shooting Union (UIT). 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 shots at a fixed target 10 meters in front of the target.
Score (400 points or 600 points) by firing a bullet or 60 bullets and determining the hit position of the bullet on the fixed target.
It is a competition where you compete for maximum points.

On the other hand, in Japan, due to legal restrictions under the Firearms and Swords Possession Control Act, shooting competitions using live ammunition cannot be widely held as a sport, and for this reason, instead of live ammunition, light beams are used to shoot 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. It has also 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 stipulated that a beam of light (with a brightness of about 3000 lux) be fired from the muzzle and illuminated in a circular area with a diameter of 75 mm on a target 10 m ahead. A light beam gun used in a shooting competition is equipped with a light emitting device having a light beam light emitting circuit for forming a light beam, and this light emitting circuit has a charging/discharging circuit,
The charges stored in the charge/discharge circuit are discharged by pulling a trigger, thereby triggering a light emitting circuit to cause a light emitting body, such as a flash discharge tube, to emit light.

Therefore, the air rifle used in air rifle shooting competitions is called a bolt action mechanism (also called a Mauser action mechanism).
It is specified to have a so-called "non-self-loading" configuration, with a mechanism that loads the gun one bullet at a time. This bolt action mechanism is operated by a bolt action lever.

For this reason, even in beef rifle shooting competitions, the light beam gun has a bolt-action lever similar to that of air rifles for live ammunition, and the trigger can only be pulled by operating this lever. The trigger switch is actuated by the trigger switch so that the next light beam can be emitted.

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

Therefore, it is an object of the present invention to provide a novel light beam gun that has an extremely simple configuration that allows a "non-automatic loading" function to be obtained even in the light beam gun. It will become clear from the detailed description accompanied by the drawings.

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

FIG. 2 shows a light emitting circuit 4 for light beams, which includes 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 trigger 2 as described above.
It has a trigger switch S1 made of a microswitch having a normally closed contact d, a normally open contact e, and a movable contact f that is activated by pulling the trigger, and a relay coil L1 equipped with a normally open switch S3. Therefore, the normally open contact a of the charging switch S2
and normally closed contact b are resistors R1 and R2, respectively.
connected to the positive side of the capacitor C1 through
The movable contact c is connected to the positive side of the low voltage DC power supply 7 via the power switch S4. 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 is connected 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, respectively.
= 100Ω, therefore capacitor C1
The charging time constant due to the capacitor C1 and resistor R2 is approximately 70 seconds, and the charging time constant due to the capacitor C1 and resistor R2 is approximately 6/2 seconds.
It is said to be 1000 seconds.

The trigger switch S1 is as shown in FIG.
It is adapted to be actuated by a trigger device in which the trigger 2 is connected to a trigger arm 14 . Trigger arm 1
As is clear from FIG. 4, which is an exploded perspective view, 4 has a T-shaped configuration as a whole, and has a cylindrical trigger connection part 15 at the lower end into which the trigger 2 is inserted and connected. The main plate portion 1 extends vertically.
6, and an actuating plate part 17 that 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. Further, the actuating plate portion 17 of the main plate portion 16
A hole 19 is bored in the side, and a cylinder 20 is fixed concentrically to the back surface of the hole 19, and a screw is attached to the tip of the hole 19 and the cylinder 20 protruding from the mounting plate 21. A pivot pin 23 having a groove 22 is inserted through a washer 24, and a nut 25 is screwed into the threaded groove 22, whereby the trigger arm 14 is rotatably attached to the mounting plate 21. ing.

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 well-known configuration, so illustrations and detailed explanations are omitted, but the microswitch has a housing 2 made of an insulating material.
6 has a contact mechanism and a snap-action mechanism, and has a configuration in which a push button 27 is freely exposed to the outside, and when the push button 27 is pressed, the snap-action mechanism is operated. The contact mechanism is opened and closed with a snap action and a click sound.

The above-mentioned micro switch includes an actuator 28 which is an elastic plate whose base end side is attached to the housing 26 and extended toward the trigger arm 14 side.
The actuator 28 is provided so as to be swingable in a clockwise direction as shown in FIG. When the microswitch is swung counterclockwise in FIG. 3, the pushbutton 27 is pressed at a point P on the actuator 28 to open and close the contact mechanism of the microswitch. Trigger switch S1 made of such a micro switch
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, so that the trigger 2 is pulled as described later. It is activated by this. The trigger arm 14 is moved around the pivot pin 2 by an actuator 28 which is rotationally biased clockwise in FIG.
The mounting plate 21 is rotated counterclockwise in FIG.
The counterclockwise rotation of the trigger arm 14 in FIG. 3 is stopped by contact with the stopper 30, which is a screw shaft that is screwed onto and protrudes upward in an adjustable manner. Gold 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 the trigger device having such a configuration, if the trigger 2 is pulled against the biasing force of the actuator 28 and the trigger arm 14 is rotated clockwise in FIG. The actuator 18 in contact with the actuator 18 swings the actuator 28 in the direction of pressing the push button 27, but since the stopper 31 is provided on the mounting plate 21 and protrudes upward, as shown in FIG. As shown in FIG.
The swinging motion of the actuator 28 is received by the stopper 31, so that the actuator 28 is stopped at a predetermined position before actuating the contact mechanism of the microswitch 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. The contact mechanism of the microswitch is activated for the first time at this point, and the snap action connects the push button 27, actuator 28, actuator 18, and trigger arm 14. Thereafter, the click sound is transmitted to the shooter's finger on the trigger 2, and the click sound reaches the shooter's ears.

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

FIG. 7 shows the primary charging/discharging circuit 11 in FIG.
The figure shows a mechanism for operating a charging switch S2 inserted in a charging path, in which a cylindrical rod 32 to which a bolt action lever 3 is attached is rotated by a predetermined angle about an axis by operating the lever 3. A tapered inclined surface 33 is formed at the tip of the rod 32. Therefore, on this inclined surface 33, there is a push button 34,
A roller 35 of a charging switch S2, which is a micro switch, is brought into contact with an actuator 36 which is a plate with a roller 35 at its tip. Therefore, as shown in FIG.
is in the position pushed to the right in the figure, the roller 35 is in the normal position where it comes into contact with the base end of the inclined surface 33 serving as the operating surface and presses the push button 34 of the charging switch S2. is retained. In such a position, the charging switch S2
As shown by the solid line in the figure, contacts c and a are closed, but when the shooter presses the bolt action lever 3
By grasping and operating the rod 3
2 is moved to the left as shown in Figure 8,
Next, by performing the operation of returning to the normal position shown in FIG. 7, the push button 34 is once released and then pressed again, so that the contact between the contacts c and b of the charging switch S2 is As shown by the dotted line in FIG. 2, an operation is performed in which the contacts are switched to be closed and then the contacts c and a are closed again.

Referring again to FIG. 2, the high voltage DC power supply 1
2 is configured with a DC-DC converter, which itself is well known, so a detailed explanation will be omitted, but a low voltage DC power supply 7 supplies a DC low voltage E1 (4.3V, for example) to a DC high voltage. E2 (e.g.
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 resistor R3 and capacitor C
A normally open switch S3 of a relay M is connected between the connection middle point of the power source 12 and the negative electrode side of the power source 12, and a capacitor C
2. A discharge path is formed by the switch S3 and the primary coil L2. The capacitor C2 and the resistor R3 that constitute such a secondary charge/discharge circuit 13 have values of, for example, C2=4700pE and R3=1.5MΩ,
Further, 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, the power switch S4 is now closed, and the bolt action lever 3 is moved to the eighth position.
When it is in the pulled state as shown in the figure, the DC low voltage E1 of the low voltage DC power supply 7 is applied to both ends of the capacitor C1 through the contacts c and b of the charging switch S2, which is switched to the contact b side, and the resistor R1. Capacitor C1 is immediately charged with a time constant of C1×R2. In this state, when the bolt action lever 3 is returned to the position shown in FIG. 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.
2 is also applied between the anode A and the cathode K of the flash discharge tube F, and a resistor R3 is connected across the capacitor C2.
and is applied via the primary coil L2 to charge the capacitor C2.

In this normal state, when trigger 2 is pulled, contacts e and f of trigger switch S1 are closed, and both ends of capacitor C1 are short-circuited by coil L1 of relay M. Therefore, a discharge path is formed in the primary discharge circuit 11, and the charge stored in the capacitor C1 with a large capacity (for example, 470 μF) is discharged, and a current flows through the coil L1, so that the relay M is activated. When activated, the switch S3 of the secondary charging/discharging circuit 13 is closed. Further, by closing the switch S3, a discharge path is formed in the secondary charging/discharging circuit 13, and the electric charge stored in the capacitor C2 is discharged, and the step-up transformer T is charged with a discharge path.
Next, a current is applied instantaneously to the coil L2, so that 2
Next, a high voltage is generated in the coil L3, which is applied between the starting electrode G and the cathode K of the flash discharge tube F to generate a starting discharge, thereby causing the anode A and the cathode K.
An arc discharge is generated in between, and a flash is generated from the flash discharge tube F. This flash light is transmitted to the lens system 6 in the beam gun 1 shown in FIG.
In this case, after such light emission, the shooter releases the trigger 2 to return the trigger switch S1 to the open state, and the primary charging/discharging circuit 11 is activated. Even if the discharge path is opened, the charging time constant will be low because the resistor R1 has a relatively high resistance value (for example, 150KΩ) as described above and the capacitor C1 has a large capacity (for example, 470μF). large (e.g. about 70
Therefore, the capacitor C1 is not immediately charged with electric charge, so even if the trigger 2 is pulled again and the trigger switch S1 is closed, the relay M will not operate, and therefore the flash will not occur. Light emission from the discharge tube F cannot be obtained. 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, when the switch S2 is switched to the contact b side, In the primary 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 is C1 is charged, and then
When 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 beam gun according to the present invention, the light beam light emitting circuit 4
has a charging switch S2 operated by a bolt action lever 3 as a charging actuator provided on the light beam gun 1, and this switch S
2, the contacts c and b that close when the bolt action lever 3 is operated are inserted into the charging path of the primary charging/discharging circuit 11 together with the charging resistor R1 having a low resistance value. Therefore, if the bolt action lever 3 is operated after pulling the trigger 2 to emit the light beam 9, the capacitor C1
is immediately charged and the next light beam 9 can be emitted.

In addition, contacts c and a, which are closed when the bolt action lever 3 of the charging switch S2 is not operated, are connected to the primary charging/discharging circuit together with the natural discharge resistor R2, which has a higher resistance value than the charging resistor R1. By being inserted into the charging path 11, it compensates for the primary charging/discharging circuit 11 to self-discharge when the bolt action lever 3 is not operated. In this case, the light is emitted immediately, and even if the trigger 2 is operated again after the light is emitted in this way, the light is not emitted. However, after operating the bolt action lever 3 once, If the trigger 2 is operated, light emission can be obtained immediately.

Therefore, according to the light beam gun according to the present invention, although it has an extremely simple structure, the light beam gun 1 can have a "non-automatic loading type" structure similar to an air rifle that fires live bullets, and the light beam gun This has the effect of improving the operability and reliability of the gun 1.

In addition, according to the above-described example of the light beam gun 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 also be configured with a lever or push button having a configuration, and various other modifications and changes may be made without departing from the spirit of the invention.

[Brief explanation of drawings]

FIG. 1 is a side view of a light beam gun equipped with a light beam gun light emitting device according to the present invention. Figure 2 shows
It is a connection diagram of the light-emitting circuit for light beams. 3 to 6 are a side view of the trigger device, an exploded perspective view of essential parts, and a side view showing sequential operations. 7th
8 and 8 are side views showing the bolt action mechanism. 1... Beam gun, 2... Trigger, 3... Bolt action lever, 4... Light beam light emitting circuit, 5
...Light emitter, 6...Lens system, 7...Low voltage DC power supply, 9...Light beam, 11...Primary charge/discharge circuit, 12...High voltage DC power supply, 13...Secondary charge/discharge circuit , 14...Trigger arm, 27, 34...
...Push button, 28, 36...Actuator, 32...
... Rod, 33 ... Inclined surface, 35 ... Roller, S1
...Trigger switch, S2...Charging switch, C1, C2...Capacitor, R1-R3...
Resistor, M...Relay, T...Step-up transformer, F
...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. The one-dimensional charging/discharging circuit includes: (a) the DC power source is
A first charging contact connected to the charging/discharging capacitor through a charging resistor and a first charging contact that closes when the bolt action lever is pulled and opens when the bolt action lever returns from that state. and (b) the DC power supply connects the charging/discharging capacitor with a second contact that opens and closes in the opposite direction to the first contact.
a second charging path connected through a charging contact and a natural discharge compensation resistor having a resistance value larger than the charging resistor; A trigger switch, which is operated by pulling a trigger provided on the light beam gun, is inserted into the discharge path of the secondary charging and discharging circuit, and the primary charging and discharging circuit is connected to the discharge path of the secondary charging and discharging circuit. A light emitting device for a light beam gun, characterized in that a switch is inserted that is activated based on a discharge current flowing in a discharge path of a circuit.