JPS6233513B2 - - 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 This invention relates to a trigger 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 been widely practiced in countries around the world as a sport 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 or 60 shots at a fixed target 10 meters in front of the target.
Score by firing a bullet and determining the hit position of the bullet on a fixed target (out of 400 or 600 points)
This is a competition in which air rifles are competed for, and the trigger device for such air rifles is regulated so that the trigger tension must be 150g or more. However, from an ergonomic point of view, there is a strong tendency to use a so-called "two-stage pull-out" configuration, and in order to achieve such a "two-tier pull-out" configuration, a complicated configuration is required.

On the other hand, in Japan, due to legal restrictions imposed by the Firearms and Swords Possession Control Act, shooting competitions using live ammunition cannot be widely practiced 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. 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 light beam with a brightness of approximately 3000 lux be emitted from the muzzle and illuminated in a circular area with a diameter of 75 mm on a target 10 meters in front of the gun. A light beam gun used in shooting competitions operates a trigger switch that triggers a light beam light emitting circuit by pulling the trigger, which causes a light emitter to emit light, and this light is transmitted through a lens system. By passing it through, it is converted into a light beam and fired from the muzzle of the gun.

In this case, even in the trigger device of the light beam gun,
It is desirable to apply the "two-stage pull" used in the trigger device of the air rifle mentioned above. Originally, the trigger device was considered the lifeblood of a gun, and in addition to its function as a trigger, its feel was an extremely important element. Therefore, in order to obtain the desired function and feel with a light beam gun, a complicated and delicate mechanism similar to the trigger device of an air rifle is required, and the number of parts is large, making it difficult to manufacture and adjust. This had the disadvantage that the light beam gun was expensive.

Therefore, the present invention aims to propose a novel trigger device for a light beam gun that can provide the desired function and feel without using a complicated and expensive mechanism. It will become clear from what I describe.

FIG. 1 shows a light beam gun equipped with a trigger device according to the invention, generally designated by the reference numeral 1, including a trigger 2, a bolt action lever 3, a light beam light emitting circuit 4,
The light emitting circuit 4 is equipped with a light emitter 5, a lens system 6, a DC low voltage power supply 7, etc., and is activated by a trigger switch S1 activated by a trigger 2 and a bolt action of a bolt action lever 3. and a charging switch S2. Then, by pulling trigger 2, trigger switch S1 is activated.
triggers a light emitting circuit 4, thereby causing a light emitting body 5 provided in a gun barrel 8 to emit light, converting this emitted light into a light beam 9 through a lens system 6, and ejecting it from a muzzle 10. .

FIG. 2 shows a trigger device for a light beam gun according to the invention, in which the trigger 2 is connected to a trigger arm 11. As is clear from FIG. 3, which is an exploded perspective view, the trigger arm 11 has an overall T-shaped configuration, 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 13 which is provided with a section 12 and extends in the vertical direction, and an actuation plate part 14 which is bent from the main plate part 13 and can be extended left and right. One end (right end in the figure) of the actuating plate portion 14 is bent downward to form an actuator 15. Also, main plate part 1
A hole 16 is bored on the side of the actuating plate 14 of No. 3, and a cylindrical body 17 is fixed concentrically to the back surface of the hole 16.
A pivot pin 20 having a threaded groove 19 at the tip protruding from the thread 8 is inserted through a washer 21, and a nut 22 is screwed into the threaded groove 19, thereby attaching the trigger arm 11. It is rotatably attached to the service plate 18.

The trigger switch S1 is a micro switch, and is fixed to a fixed part (not shown) of the trigger arm 11 on the actuator 15 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 23 made of an insulating material, and a push button 24 on the outside. When the push button 24 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 exists.

The micro switch as described above has an actuator 25, which is an elastic plate whose base end is attached to the housing 23 and extends toward the trigger arm 11, with the actuator 25 having a point O at the base end as a fulcrum. Second
When the actuator 25 is provided so as to be swingable in a clockwise direction as shown in the figure, and the actuator 25 is swung counterclockwise in FIG. 2 against the biasing force approximately at point O. , the push button 24 is pressed at a point P on the actuator 25 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 15 of the trigger arm 11 is in contact with the actuator 25 at a point Q, which is a position between the free end of the actuator 25 and the point P, when the trigger 2 is pulled as described later, be activated. The trigger arm 11 is rotationally biased in the counterclockwise direction in FIG. 2 about the pivot pin 20 by an actuator 25, which is rotationally biased in the clockwise direction in FIG. 2 about the point O. However, a stopper consisting of a screw shaft is screwed onto the mounting plate 18 and protrudes upwardly so as to be adjustable, on a portion 26 of the actuating plate portion 14 of the trigger arm 11 on the side opposite to the actuator 15 side. 27 comes into contact with the trigger arm 1.
1 in the counterclockwise direction in FIG. 2 is locked, so that the trigger 2 maintains its normal position as shown in FIG. The mounting plate 18 is also provided with a stopper 28, which is a screw shaft that is screwed onto the mounting plate 18 and protrudes upwardly so as to be adjustable.

The trigger device for a light beam gun according to the present invention has the above-described configuration, but the trigger 2 is connected to the actuator 25.
When the trigger arm 11 is rotated clockwise in FIG. 2 by pulling against the biasing force of The push button 24 is swung in the direction in which it is pressed, but because the stopper 28 is provided on the mounting plate 18 and projects upward, the actuator 25 is positioned at the point N of its free end, as shown in FIG. Therefore, the rocking motion of the actuator 25 is stopped at a predetermined position before actuating 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 28.

Next, when the trigger 2 is pulled further from the position shown in FIG. 4, the actuator 25 made of an elastic plate supported by the stopper 28 is moved between points O and N by the actuator 15 as shown in FIG. The contact mechanism of the microswitch is actuated for the first time at this point, and the snap action connects the push button 24, the actuator 25, the actuator 15, and the trigger arm 11. The click sound is then transmitted to the shooter's finger on the trigger 2, and the click sound reaches the shooter's ears.

The configuration and operation of the trigger device of the light beam gun according to the present invention have been clarified through the above explanation. is obtained based on the rotational biasing force of the actuator 25, and the second stage tension is obtained based on the deflection of the actuator 25, respectively. The closer the point P is to the side, the greater the force is, and the closer the point N is to the side, the smaller the force is.The second stage tension is determined based on the elasticity of the actuator 25 and the distance between the point and N.

Next, the light beam circuit 4 for causing the light emitter 5 to emit light when triggered by the above-mentioned trigger device will be described with reference to FIG.

The light beam light emitting circuit 4 is the primary charging/discharging circuit 2
9. High voltage DC power supply consisting of DC-DC converter 3
It is configured with zero and secondary charge/discharge circuits 31.

The primary charging/discharging circuit 29 includes a large capacity capacitor C1.
, and its charging path includes a self-discharge compensation resistor R1 having a relatively large resistance value, a charging resistor R2 having a relatively small resistance value, a normally open contact a, a normally closed contact b, and It has a charging switch S2 which is a micro switch having a movable contact c, and the discharge path has a normally closed contact d, a normally open contact e and a movable contact which are activated by pulling the trigger 2 as described above. It has a trigger switch S1 made of a microswitch having a frequency of f, and a coil L1 of a relay M equipped with a normally open switch S3. The normally open contact a and the normally closed contact b of the charging switch S2 are connected to the positive electrode side of the capacitor C1 through a resistor R1 and a resistor R2, respectively, and the movable contact c is connected to the power switch S2.
4 to the positive electrode side of the low voltage DC power supply 7. In addition, 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 contacts f are connected to the negative electrode side, and the normally closed contacts d
is considered disconnected. 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 chosen to be, for example, C1 = 470μF, R1 = 150KΩ and R2 = 100Ω, respectively, so that the charging time constant by capacitor C1 and resistor R1 is approximately 70 seconds; The charging time constant due to R2 is approximately
It is said to be 6/1000 seconds.

The charging switch S2 is operated by a bolt action lever 3 having the structure shown in FIGS. 7 and 8.

The bolt-action (also known as Mauser-action) mechanism is a mechanism used to load bullets one by one into a firing position in guns used for live ammunition shooting, and is also used in air rifle shooting competitions. , the gun is equipped with a bolt-action mechanism operated by a bolt-action lever, and such a gun is called a "non-automatic loading type" (competition guns have automatic and automatic loading mechanisms). Semi-automatic loading types are not allowed).

The light beam gun 1 having the trigger device according to the present invention is also equipped with a bolt action lever 3 similar to the above-mentioned air rifle gun, and the bolt action lever 3 can be operated every time the light beam 9 is fired. The light beams 9 are sequentially emitted from the muzzle 10 through the gun. That is, in FIG. 7, the cylindrical rod 32 to which the bolt action lever 3 is attached is once rotated by a predetermined angle around the axis of the rod 32 by operating the lever 3, and then rotated in the axial direction. The rod body 32 is provided so as to be movable back and forth, and a tapered inclined surface 33 is formed at the tip of the rod body 32 . 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. 7, the roller 35 comes into contact with the base end of the inclined surface 33 serving as the operating surface, and the charging switch is activated. S
The usual position determined by pressing the second push button 34 is maintained. In such a position, the charging switch S2
As shown by the solid line in FIG. 6, contacts c and a are closed, but when the shooter grasps the bolt action lever 3 and the rod 32 moves to the left as shown in FIG. By performing a bolt action operation in which the push button 34 is pressed and then returned to its normal position as shown in FIG. 7, the push button 34 is released and then pressed again. As shown by the dotted line in FIG. 6, the contact between the contacts c and a is switched to be closed, and the contact between the contacts c and a is again closed.

The high-voltage DC power supply 30 is configured with a DC-DC converter, and is well known per se, so a detailed explanation will be omitted. A DC high voltage E2 (for example, 300V) is generated.

The secondary charging/discharging circuit 31 is centered around a capacitor C2 of relatively small capacity, and has a resistor R3 in its charging path, and a primary coil L2 of a step-up transformer T having a primary coil L2 and a secondary coil L3 connects the resistor R3. The positive terminal side of the high voltage DC power supply 30 is connected with the primary coil L2 as the negative terminal side, and the resistor R3 and capacitor C
A normally open switch S3 of a relay M is connected between the connection middle point of 2 and the negative pole side of a power supply 30, and a capacitor C
2. A discharge path is formed by the switch S3 and the primary coil L2. Such secondary charging/discharging circuit 31
The capacitor C2 and the resistor R3 that constitute the
= 4700 pF, R3 = 1.5 MΩ, 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 30.
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 30.

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 30 consisting of a DC-DC converter, and a DC high-voltage voltage E2 is generated from its output side, and this voltage E2 is also applied between the anode A and the 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.

When trigger 2 is pulled in this normal state, 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 is short-circuited, a discharge path is formed in the primary charging/discharging circuit 29, 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, thereby activating the relay M and closing the switch S3 of the secondary charging/discharging circuit 31. By closing this switch S3, a discharge path is formed in the secondary charging/discharging circuit 31, and the charge stored in the capacitor C2 is discharged, causing a current to flow instantaneously to the primary coil L2 of the step-up transformer T. As a result, a high voltage is generated in the secondary coil L3, which is applied between the starting pole G and the cathode K of the flash discharge tube F to generate a starting discharge, thereby causing an arc discharge between the anode A and the cathode K. This is done so that the flash discharge tube F generates a flash. This flash light is emitted from the muzzle 10 of the beam gun 1 shown in FIG. Even if the switch S1 is returned to the open state and the discharge path of the primary charge/discharge circuit 29 is opened, 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, 470 μF), the charging time constant becomes large (for example, about 70 seconds), and the capacitor C1 is not charged immediately, and even if the trigger 2 is pulled again and the switch S1 is closed, the relay M does not operate, and therefore no light emission from the flash discharge tube F can be obtained. However, by operating the bolt action lever 3, the charging switch S2 is set to contact b.
By following the procedure of switching to the contact A side and then returning to the contact A side, when the charging switch S2 is switched to the contact B side, a relatively low resistance value is created in the charging path in the primary charging/discharging circuit 29. (for example, 100Ω), the capacitor C1 is charged with an extremely small charging time constant (for example, about 6/1000 seconds), and when the trigger 2 is pulled, Light emission is obtained from the flash discharge tube F, and a light beam 9 is emitted from the muzzle 10.

As is clear from the above explanation, according to the trigger device for a light beam gun according to the present invention, a micro switch having an actuator 25 made of a commercially available elastic plate is used as the trigger switch S1, and an actuator is attached to the trigger switch S1. Although it has an extremely simple configuration consisting of a combination of a rotatable trigger arm 11 having a trigger arm 15 and a stopper 28 that receives an actuator 25 at its free end, the conventional trigger device of this type is This device has the great feature that it is possible to obtain the function and feel of a "two-stage pull" trigger device without using such a complicated and expensive mechanism.

Moreover, the predetermined 1 in the "two-stage draw" configuration
The trigger tension of the first stage and second stage can be adjusted very easily.

The above description merely shows an example of the trigger device for a light beam gun according to the present invention, and various modifications and changes may be made without departing from the spirit of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a side view of a light beam gun equipped with a trigger device for a light beam gun according to the present invention, FIG. 2 is a side view of the trigger device according to the present invention, and FIG. 3 is an exploded perspective view of the main parts thereof. 4 and 5 are side views showing the sequential operation, and FIG. 6 is a continuous view of the light beam light emitting circuit.
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 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 trigger arm, 15 is an actuator, 18
is a mounting plate, 20 is a pivot pin, 24 is a push button, 2
5 is the actuator, 28 is the stopper, 29 is 1
Next charging/discharging circuit, 30 is a high voltage DC power supply, 31 is 2
Next charging/discharging circuit, S1 is a trigger switch, S2 is a charging switch, C1 and C2 are capacitors, R
1 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. In a trigger device for a light beam gun configured to operate a trigger switch that triggers a light beam light emitting circuit by pulling the trigger, the trigger switch is configured to: The microswitch is comprised of a push button and a swingable actuator made of an elastic plate that operates the push button, and the trigger is connected to a swingable trigger arm that has an actuator that comes into contact with the actuator. The trigger arm is rotated and biased by the actuator to maintain a normal position, and the micro switch as the trigger switch is configured such that the actuator is swung by the actuator of the trigger arm. the free end of the actuator is received by a stopper, and the actuator is actuated by being bent by the actuator and pressing the push button. Beam gun trigger device.