WO2024018669A1

WO2024018669A1 - Gun and trigger mechanism

Info

Publication number: WO2024018669A1
Application number: PCT/JP2023/005395
Authority: WO
Inventors: 了久保田
Original assignee: 了久保田
Priority date: 2022-07-17
Filing date: 2023-02-16
Publication date: 2024-01-25
Also published as: EP4343265A1; JPWO2024018669A1

Abstract

[Problem] To provide a gun and a trigger mechanism with which it is possible to stably aim and pull a trigger by means of a simple mechanism.　[Solution] In this rifle gun 1, it is possible to adjust the trigger-pulling direction to the left or right, and/or front or rear, and/or above or below, and/or roll, and/or pitch, and/or yaw. Furthermore, when holding the rifle gun 1, a trigger 10 can be pulled in the direction from the wrist of the arm pulling the trigger 10 to the elbow of said arm.

Description

gun and trigger mechanism

The present invention relates to guns and trigger mechanisms.

Rifle stabilization systems against camera shake, etc. have been proposed in the past. A control system for rifle stabilization based on fuzzy logic, using a rifle whose barrel rotates freely on the stock.

The stock is held by the person firing the rifle, who may shoot from a moving vehicle or helicopter. It is also possible for the shooter to make a camera shake or accidentally sway his or her body.

In tracking mode, when a target is being viewed, a position sensor detects unwanted movement and locks the rifle's barrel in line with the stock.

In stabilization mode, just before pulling the trigger to fire the rifle, the barrel is unlocked and the inertial rate sensor makes the barrel relatively immune to stock movement and allows the barrel to track and see the target. so that it continues to be used.

The firing control system includes a fuzzy logic control that uses a set of inference rules to align the barrel with the stock during tracking and to stabilize the barrel just before firing. (Patent Document 1)

Japanese Patent Application Publication No. 11-118394

In the technology of Patent Document 1, the system for stabilizing the rifle is complicated. Complex systems create failures and are difficult to manufacture.

Therefore, an object of the present invention is to provide a gun and a trigger mechanism that have a simple configuration and are capable of stably aiming and pulling the trigger.

In order to achieve the above object, the gun of the present invention allows the trigger to be pulled in the direction from the finger of the arm that pulls the trigger toward the elbow when holding the gun.

To achieve the above object, the gun of the present invention can change the trigger pull direction to the left or right, and/or forward or backward, and/or upward or downward, and/or roll, and/or pitch, and/or Yaw is adjustable.

To achieve the above object, the trigger mechanism of the present invention allows the trigger pull direction to be left or right, and/or forward or backward, and/or upward or downward, and/or roll, and/or pitch, and/or Or adjustable in yaw.

According to the present invention, it is possible to provide a gun and a trigger mechanism that can stably aim and pull the trigger with a simple configuration.

FIG. 1 is a perspective view of a rifle according to the present embodiment. FIG. 2 is a simplified perspective view of the configuration of the rifle shown in FIG. 1; FIG. 3 is a plan view of FIG. 2; FIG. 4 is a schematic cross-sectional view taken along the line AA in FIG. 3 (the shoulder rest is not shown). FIG. 3 is an exploded perspective view of FIG. 2; 6 is an exploded perspective view of the trigger assembly shown in FIG. 5. FIG. FIG. 7 is a perspective view showing an assembled state of the trigger assembly shown in FIG. 6; FIG. 6 is a diagram showing a state in which the grip and trigger assembly shown in FIG. 5 are combined. 3 is an exploded perspective view of a shoulder rest portion of the rifle shown in FIG. 2. FIG. FIG. 3 is a diagram in which the roll, pitch, and yaw directions of the trigger pull of the rifle, which is a simplified version of the configuration shown in FIG. 2, are adjusted. It is a front enlarged view when FIG. 10 is made into a top view. FIG. 2 is a schematic plan view showing the state of a person's fingertips, wrist and elbow when holding a conventional rifle in which the direction of pulling the trigger is toward the rear of the barrel. FIG. 2 is a schematic front view showing the state of a person's fingertips, wrist, and elbow when holding a conventional rifle in which the direction in which the trigger is pulled is toward the rear of the barrel. The X-Y plane is superimposed on a schematic plan view showing the state of a human's fingertips, wrist and elbow when holding the rifle of this embodiment with the trigger pull direction adjusted in the roll, pitch, and yaw directions. This is a diagram. The X-Y plane is shown in a front schematic diagram showing the state of a human's fingertips, wrist and elbow when holding the rifle of this embodiment, with the trigger pull direction adjusted in the roll, pitch, and yaw directions. This is a superimposed diagram. This figure shows the situation when the rifle of this embodiment is held, with the trigger pull direction adjusted in the roll, pitch, and yaw directions, when viewed from directly behind the shooter, in other words, from behind the barrel toward the muzzle. It is a diagram in which the XY plane is superimposed on the schematic rear view shown in FIG. It is an exploded perspective view of the pistol of this embodiment. FIG. 2 is a perspective view showing an assembled state of the pistol according to the present embodiment.

(Composition, action, and effects of rifles)
The configuration, operation, and effects of the rifle 1 according to the present embodiment will be explained below with reference to FIGS. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 , FIG. 12, FIG. 13, FIG. 14, FIG. 15, and FIG. 16. As shown in FIG. 2, the rifle 1 rotates and adjusts the direction in which the trigger 10 is pulled in a roll direction around the X axis, a pitch direction around the Y axis, and a yaw direction around the Z axis. It is possible. Note that the rotational adjustments to roll, pitch, and yaw are performed along the spherical surface of the spherical portion 4 and the spherical surface of the second spherical portion 14, which will be described later. Incidentally, in all conventional rifles, the direction in which the trigger 10 is pulled is toward the rear of the barrel.

In this embodiment, the terms "rotational adjustment" and simply "adjustment" are used, but "rotational adjustment" refers to the spherical portion 4 described later, as shown in FIGS. 3 and 4. And it is used when adjusting along the spherical surface of the second spherical part. Mere "adjustment" is a concept that includes "rotational adjustment" and includes adjustment that does not follow the spherical surfaces of the spherical part 4 and the second spherical part.

As shown in FIGS. 4 and 5, the rifle 1 is roughly divided into a front bed 2, a grip 3, a bulbous portion 4, a trigger assembly 5, a clamp 6, a stock 7, and a shoulder rest 8. The spherical portion 4 connects the front stock 2 and the stock 7 through joints 11 and 12.

Then, the annular portion 13 of the trigger assembly 5 is fitted into the second spherical portion 14 of the grip 3, and the screws 16 are inserted into both of the opposing screw holes 15a and 15b of the trigger assembly 5 to perform a screw connection. The second spherical part 14 is tightened by the annular part 13 and the trigger assembly 5 is fixed to the grip 3.

Then, the hole 17 of the clamp 6 is brought into contact with the spherical surface of the spherical part 4, and the screws 19a, 19b, 19c, and 19d are passed through the screw holes 18a, 18b, 18c, and 18d of the clamp 6, respectively. Then, the penetrating screws 19a, 19b, 19c, and 19d are screwed into screw holes 20a, 20b, 20c, and 20d in the upper edge of the second spherical portion 14 of the grip 3, and are fixed to each other.

These screws 19a, 19b, 19c, 19d are screwed together with the screw holes 20a, 20b, 20c, 20d on the upper edge of the second spherical part 14 of the grip 3, and when they are fixed to each other, the direction in which the trigger is pulled is can be rotated from the rear of the barrel mainly in the yaw direction, that is, to the left or right as shown in FIG. This is because when the hole 17 of the clamp 6 is brought into contact with the spherical surface of the spherical part 4, by changing (adjusting) the place of contact, the direction in which the trigger 10 is pulled can be changed mainly in the yaw direction, that is, from the rear of the barrel to the left or This is because the rotation can be adjusted from 5° to 20° to the right. This is the trigger 10 mechanism of rifle 1.

6 and 7 show details of the trigger assembly 5. The trigger assembly 5 has a longitudinal adjustment block 31. The longitudinal adjustment block 31 is moved in the direction of arrow X1 by hooking its groove 31a onto the rail 32a of the base 32, inserting the screw 33 into the screw hole 31b, and narrowing the width of the groove 31a by tightening the screw 33. , can be fixed at any position on the rail 32a. That is, the longitudinal adjustment block 31 can adjust the longitudinal position (position in the arrow X1 direction).

Additionally, the trigger assembly 5 has a left and right adjustment block 35. The left and right adjustment block 35 has a groove 35a that engages with the protrusion 31c of the front and rear adjustment block 31. Then, the left-right adjustment block 35 hooks its groove 35a onto the rail 31d of the front-rear adjustment block 31, moves it in the direction of arrow Y1, inserts the screw 36 into the screw hole 35b, and tightens the screw 36 to adjust the width of the groove 35a. It can be narrowed and fixed at any position of the rail 31d. That is, the left-right adjustment block 35 can adjust the left-right position (position in the arrow Y1 direction).

Additionally, the trigger assembly 5 has a vertical adjustment block 37. The vertical adjustment block 37 has a groove 37a into which the pole 35c of the horizontal adjustment block 35 is inserted. Then, the vertical adjustment block 37 moves its groove 37a in the direction of arrow Z1 along the pole 35c of the left and right adjustment block 31, inserts the screw 38 into the screw hole 37b, and tightens the screw 38 to adjust the width of the groove 37a. It can be narrowed and fixed at any position of the pole 35c. That is, the vertical adjustment block 37 can adjust the vertical position (position in the arrow Z1 direction). Note that the vertical adjustment block 37 plays the role of the trigger 10.

Further, FIG. 8 shows a state in which the trigger assembly 5 is attached to the grip 3. The annular portion 13 of the trigger assembly 5 is arranged and fixed on the spherical portion of the circumferential surface of the second spherical portion 14 of the grip 3. By this, when the annular portion 13 of the trigger assembly 5 is brought into contact with the spherical surface of the second spherical portion 14, by changing (adjusting) the place of contact, the direction in which the trigger 10 is pulled can be changed around the X-axis. It is rotationally adjustable in rotational roll, rotational pitch about the Y-axis, and rotational yaw about the Z-axis.

Further, FIG. 9 shows the configuration of the shoulder rest 8 portion. First, there are a longitudinal adjustment bar 41a, a recess 42a into which the longitudinal adjustment bar 41a is inserted, and a recess 42b into which the longitudinal adjustment bar 41b and longitudinal adjustment bar 41b are inserted. The position of the shoulder rest 8 in the longitudinal direction Y1 can be adjusted by inserting the longitudinal adjustment bars 41a, 41b into the recesses 42a, 42b to what extent.

It has a left-right adjusting screw 43a, a horizontally long hole 44a through which the left-right adjusting screw 43a passes, and a screw tightening hole 45a into which the left-right adjusting screw 43a passed through the horizontally long hole 44a is tightened. It has a left-right adjusting screw 43b, a horizontally elongated hole 44b through which the left-right adjusting screw 43b passes, and a screw tightening hole 45b into which the left-right adjusting screw 43b passed through the horizontally long hole 44b is tightened. When the left and right adjusting screws 43a and 43b are tightened into the screw holes 45a and 45b, the left and right direction of the shoulder rest 8 is determined depending on which position in the horizontally long holes 44a and 44b the screws are tightened. The position of X1 can be adjusted.

It has a vertical adjustment screw 46, a screw hole 47 through which the vertical adjustment screw 46 passes, and a block 49 into which the vertical adjustment screw 46 passed through a vertical hole 48 is tightened. When the vertical adjustment screw 46 is screwed into the screw hole 47 and block 49, the position of the shoulder rest 8 depends on where in the vertically long hole 48 the block 49 is placed and screwed. The position can be adjusted in the vertical direction Z1.

10 and 11 show the state in which the direction in which the trigger 10 is pulled is adjusted by rotation from the rear of the gun barrel in the roll, pitch, and yaw directions, respectively. This trigger 10 is a so-called electronic trigger. By rotating and adjusting the pulling direction of the trigger 10 from the rear of the barrel to the left, when a right-handed person holds the rifle 1, the trigger 10 can be pulled in the direction from the wrist to the elbow of the arm that pulls the trigger 10. It becomes possible to draw.

Due to the structure of the human body, the movement of the fingers due to the contraction of the muscles on the wrist side of the elbow is transmitted to the fingers through the tendons. From an ergonomic standpoint, response sensitivity is best when the tendon flow line is straight. The trigger 10 is structured so that it can be pulled from the wrist to the elbow of the arm that pulls the trigger 10, rather than toward the rear of the gun barrel, eliminating bending of the wrist and making the line of tendon flow straight. This state in which the muscles and tendons that move the finger that pulls the trigger, including the trigger 10, are in a straight line is the best mode state in which the response sensitivity of the finger is maximized and high accuracy can be achieved. The adjustment angle of the grip 3 and/or the trigger 10 cannot be quantified as a fixed value because the optimum solution varies depending on the shape and dimensions of the gun, the physique of the shooter, the condition of the clothing worn, etc. Therefore, either make the adjustment angle variable, or select the optimal value by fitting from among multiple fixed numerical models made with multiple types of numerical values, like choosing the size of clothes. It turns out.

12 and 13 show the posture of a person holding a rifle 21 with the trigger 10 pulled toward the rear of the conventional barrel. As shown in arm bend a1, the trigger 10 is pulled with the wrist bent, so the trigger 10 is pulled in an obviously unstable state.

14 and 15 show a rifle 1 held in which the direction in which the trigger 10 is pulled is rotated from the rear of the barrel to the right, and the trigger is pulled in the direction from the wrist to the elbow of the arm that pulls the trigger 10. It shows the human posture. In other words, FIGS. 14 and 15 show a posture in which the muscles and tendons that move the finger that pulls the trigger, including the trigger 10, are in a straight line or approximately in a straight line. As shown in arm bend a2, the trigger 10 is pulled in a natural state with the wrist not bent, so the trigger 10 is pulled in a stable state. In other words, FIGS. 14 and 15 show the posture of a human holding the trigger including the trigger 10 or the rifle 1 that allows the trigger to be pulled in the direction from the finger that pulls the trigger 10 to the elbow. There is.
As shown in Fig. 14, the gun is positioned on the X-Y plane, which consists of the X-axis whose value increases toward the right side and the Y-axis whose value increases toward the top, with the trigger 10 as its origin. If they are placed one on top of the other, a right-handed shooter will pull the trigger 10 in the third quadrant (Q3) of the coordinates. As shown in FIG. 14, when the gun is placed, the direction in which the left-handed shooter pulls the trigger 10 falls within the second quadrant (Q2) of the coordinates with the trigger 10 as the origin. If the guns are placed on top of each other in the XY plane described above, with the trigger 10 as the origin, as shown in Figure 15, the direction in which the trigger 10 is pulled will be with the trigger 10 as the origin, regardless of the handedness. This is the range of the third quadrant (Q3) of the coordinates. When the guns are placed on top of each other in the XY plane mentioned above, with the trigger 10 as its origin, as shown in Figure 16 (when viewed from directly behind the shooter, in other words, from behind the gun barrel toward the muzzle), For a right-handed shooter, the direction in which the trigger 10 is pulled falls within the fourth quadrant (Q4) of the coordinates with the trigger 10 as the origin. If the guns are placed one on top of the other in the XY plane, with the trigger 10 as its origin, as shown in Figure 16, a left-handed shooter will be able to pull the trigger 10 in the same direction as the trigger 10 as its origin. This is the range of the third quadrant (Q3) of the coordinates.

(Main effects obtained by this embodiment)
To provide a rifle 1 and a trigger 10 mechanism capable of stably aiming and pulling the trigger with a simple configuration in which the direction in which the trigger 10 is pulled can be rotated from the rear of the barrel to the left. Can be done.

The rifle gun 1 and the trigger 10 mechanism can not only adjust the direction in which the trigger 10 is pulled in the left and right direction, that is, in the yaw direction, but also in the roll and pitch directions. That is, in the rifle gun 1 and the trigger 10 mechanism, the direction in which the trigger 10 is pulled can be adjusted in the XYZ axis directions. For example, as shown in FIGS. 6 and 7, the trigger assembly 5 itself can adjust the direction in which the trigger 10 is pulled in the X1, Y1, and Z1 axial directions.

Further, as shown in FIG. 8, when the trigger assembly 5 is attached to the grip 3, the annular portion 13 of the trigger assembly 5 is arranged and fixed on the spherical portion of the circumferential surface of the second spherical portion 14 of the grip 3. . This state means that the grip 3 can be adjusted in the RPY (roll, pitch, yaw) direction. Further, from the above, the relative position of the grip 3 and the trigger 10 can be adjusted in the XYZ directions, and the relative posture can be adjusted in the RPY direction, with a total of 6 degrees of freedom.

Further, as shown in FIG. 9, the shoulder rest 8 portion is adjustable in the X2, Y2, and Z2 axis directions. This makes it possible to solve the problem that the optimal value of the relative position between the shoulder rest 8 and the grip 3 differs due to differences in physique among shooters.

(other forms)
Although the rifle 1 according to the present embodiment described above is an example of a preferred embodiment of the present invention, it is not limited thereto, and various modifications can be made without changing the gist of the present invention. .

For example, since the rifle 1 of this embodiment is for a right-handed person, it is assumed that the trigger 10 is pulled with the index finger of the right hand, and the direction in which the trigger 10 is pulled is rotated from the rear of the barrel to the left. It was adjusted. However, in the left-handed rifle 1, the direction in which the trigger 10 is pulled is adjusted by rotation from the rear of the barrel to the right, assuming that the trigger 10 is pulled with the index finger of the left hand.

Furthermore, in the rifle 1 of this embodiment, the direction in which the trigger 10 is pulled is adjusted to the left. However, the direction of pulling the trigger 10 may be adjusted to the left or right, and/or forward or backward, and/or upward or downward. Furthermore, in the rifle gun 1 of this embodiment, the direction in which the trigger is pulled may be adjusted in the roll, pitch, and/or yaw directions.

Therefore, the second spherical portion 14 does not necessarily have to be spherical. However, when it is desired to adjust the rotation of the trigger assembly 5, the second spherical portion 14 may be made spherical. Further, the adjusting mechanism of the shoulder rest 8 in the X2, Y2, Z2 directions shown in FIG. 9 is not an essential component and can be omitted.

Furthermore, in the rifle 1 of this embodiment, the direction in which the trigger 10 is pulled can be adjusted by rotating from 5° to 20° to the left or right from the rear of the barrel. However, this angle can be changed to more than 0° and 75°, 1° to 10°, 1° to 30°, 5° to 45°, etc., that is, the adjustment range can be set. Further, in the rifle gun 1 of the present embodiment, the direction in which the trigger 10 is pulled can be adjusted within a range of 30 degrees above 0 degrees upward from the rear of the barrel and 75 degrees above 0 degrees downwards. From an ergonomic standpoint, these adjustment ranges are within which all people can pull the trigger stably. For example, the adjustment range for the direction in which the trigger 10 is pulled is set wider downward than upward from the rear of the barrel, because when the shooter holds the rifle 1, the elbow of the arm that pulls the trigger 10 is lower than the shoulder. Moreover, this is because the posture of being positioned closer to the shoulder than the trigger is natural and reasonable. This generally applies to shooters of standard size.

Although the present embodiment has been described using the rifle 1 as an example, it goes without saying that it can be applied to other guns, such as pistols (short guns, handguns), machine guns, sporting guns, etc. It can also be applied to rifles other than rifles. Generally speaking, military guns do not require extreme accuracy; they must be inexpensive, mass-produced, easy to handle, and do not break down. Good models are often selected for sniping. Further, the present embodiment is suitably applied to firearms intended for sports, that is, target shooting competitions and hunting. Target shooting competition guns and hunting guns are not bound by the requirements of military guns, and require high accuracy. Among these, competitive target shooting guns are not bound by the requirements of military guns, and require the ultimate in accuracy. Incidentally, guns used for hunting or low-grade, inexpensive target shooting competitions may be diverted to military use.

For example, the pistol 51 according to the present embodiment will be explained using FIGS. 17 and 18. Basically, the pistol 51 has approximately the same configuration as the rifle 1, so the numbers given to each component of the pistol 51 are the same as the numbers given to the parts of the rifle 1 that have the same functions. The description of each member will be omitted.

Additionally, in the case of a pistol, from an ergonomic standpoint, if the pistol is held at maximum response sensitivity, the muzzle will not point in the direction of the target. If you hold the pistol grip with your right arm and pull the trigger with your right index finger, the direction in which you pull the trigger should be rotated clockwise around the Z3 axis in Figure 18, slightly clockwise around the X3 axis, and rotated slightly clockwise around the Y3 axis in Figure 18. I have found that rotating the pistol slightly to the left is the most stable way to aim the pistol.

Further, although the trigger 10 of the rifle gun 1 employs a so-called electronic trigger, a so-called mechanical trigger such as a hydraulic trigger, a wire, a link, etc. can also be employed for the following reasons. For example, a hydraulic trigger can be employed by connecting a hydraulic tube from the trigger assembly 5 to the engine section of the gun. Further, a wire-type trigger can be employed by connecting a wire such as a bicycle brake or a speed change wire from the trigger assembly 5 to the engine part of the gun. Furthermore, a link mechanism trigger can be employed by connecting the trigger movement to the gun mechanism via a lever or link. However, an electronic trigger eliminates the need for mechanical connection between the engine section and the trigger, and the rifle 1 can be configured more easily.

Furthermore, in the rifle gun 1 of this embodiment, the direction in which the trigger 10 is pulled can be adjusted by rotation from the rear of the barrel to the left or right. However, the direction in which the trigger 10 is pulled may be fixed after rotationally adjusted to the left or right from the rear of the gun barrel. Furthermore, the adjustment mechanism may be omitted and the rotation angle may be set in advance for molding. In other words, the adjustment mechanism may be omitted to reduce costs by adjusting the XYZRPY directions in advance to suit the physique of an average shooter.

Further, the trigger 10 mechanism of the rifle 1 according to the present embodiment is such that when the hole 17 of the clamp 6 is brought into contact with the spherical surface of the spherical portion 4, the trigger 10 is pulled by changing (adjusting) the place of contact. The direction is adjusted by rotating from the rear of the barrel to the left or right. However, the trigger 10 mechanism of the rifle gun 1 is not limited to such a mechanism, and various mechanisms capable of rotationally adjusting the pulling direction of the trigger 10 to roll, pitch, or yaw can be adopted.

In addition, the X axis, Y axis, and Z axis shown in FIG. 2, the arrow X1, arrow Y1, and arrow Z1 shown in FIG. 6, the X2 direction, Y2 direction, and Z2 direction shown in FIG. Each of XYZ around the X3 axis, around the Y3 axis, and around the Z3 axis shown in FIG. 17 is a character that generally represents three-dimensional coordinates.

1 rifle (gun)
10 Trigger

Claims

When holding a gun, the trigger can be pulled in the direction from the finger that pulls the trigger to the elbow of the arm that pulls the trigger.
gun.
the trigger pull direction is adjustable to the left or right, and/or forward or backward, and/or upward or downward, and/or roll, and/or pitch, and/or yaw;
gun.
the trigger pull direction is adjustable to the left or right, and/or forward or backward, and/or upward or downward, and/or roll, and/or pitch, and/or yaw;
trigger mechanism.