Rifle, pistol and position adjustment mechanism therefor

Abstract

To provide a rifle, a pistol, and their position adjustment mechanisms, which enable stable aiming and trigger pulling with a simple configuration.SOLUTION: In a rifle 1 having an adjustment member for adjusting the position and orientation of the rifle 1 relative to the human body when the rifle 1 is held, at least one of a gunstock 7 (cheek rest), a shoulder rest 8 (shoulder rest), and a fore-end 9 can be adjusted with five degrees of freedom or less, six degrees of freedom, or seven degrees of freedom or more.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to rifles, pistols and their position adjustment mechanisms. [Background technology]

[0002] Systems for stabilizing rifles against hand shake and the like have been proposed in the past. A control system for stabilizing a rifle based on fuzzy logic uses a rifle with a barrel that is free to rotate on the stock.

[0003] The stock is held by the person firing the rifle, who may be shooting from a moving vehicle or helicopter, and may be subject to hand shake or accidental body movement by the shooter.

[0004] In tracking mode, when the target is in view, unwanted movement is detected by a position sensor and the rifle barrel is locked into line with the stock.

[0005] In stabilized mode, just before the trigger is pulled to fire the rifle, the barrel is unlocked and an inertial rate sensor makes the barrel relatively immune to stock movement and ensures that the barrel keeps track of the target.

[0006] The firing control system includes a fuzzy logic control means that uses a set of inference rules to keep the barrel aligned with the stock during tracking and stabilize the barrel just prior to firing. (Patent Document 1) [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 11-118394 Summary of the Invention [Problem to be solved by the invention]

[0008] In the technology of Patent Document 1, the system for stabilizing the rifle is complicated. A complicated system not only creates a cause of failure, but also makes manufacturing difficult.

[0009] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a rifle, a pistol, and a position adjustment mechanism thereof that are simple in construction and enable stable aiming and trigger pulling. [Means for solving the problem]

[0010] In order to achieve the above-mentioned object, the rifle of the present invention has an adjustment member for adjusting the position and orientation of the rifle relative to the human body when the rifle is held, and at least one of the stock (cheek rest), shoulder rest (shoulder rest) and fore-end portion can be adjusted with five degrees of freedom or less, six degrees of freedom, or seven degrees of freedom or more.

[0011] Here, the adjustment member may be provided on at least one or both of the trigger and the grip.

[0012] In order to achieve the above-mentioned object, the present invention provides a rifle position adjustment mechanism having an adjustment member that adjusts the position and orientation of the rifle relative to the human body when the rifle is held, and the adjustment member allows at least one of the stock (cheek rest), shoulder rest (shoulder rest) and fore-end to be adjusted with five degrees of freedom or less, six degrees of freedom, or seven degrees of freedom or more.

[0013] Here, the adjustment member may be provided on at least one or both of the trigger and the grip.

[0014] In order to achieve the above-mentioned object, the present invention provides a pistol having an adjustment member that adjusts the position and orientation of the pistol relative to the human body when the pistol is held, and the adjustment member allows at least one of the trigger and the grip to be adjusted with five degrees of freedom or less, or six degrees of freedom, or seven degrees of freedom or more.

[0015] In order to achieve the above-mentioned object, the present invention provides a position adjustment mechanism for a pistol having an adjustment member that adjusts the position and orientation of the pistol relative to the human body when the pistol is held, and the adjustment member allows at least one of the trigger and the grip to be adjusted with five degrees of freedom or less, or six degrees of freedom, or seven degrees of freedom or more.

[0016] In order to achieve the above object, the rifle or pistol of the present invention is designed so that the trajectory of the trigger of the rifle or pistol roughly follows an arc of a circle whose radius is from near the second joint of the finger pulling the trigger to the trigger itself when the rifle or pistol is held in position.

[0017] In order to achieve the above object, the position adjustment mechanism for a rifle or pistol of the present invention is configured so that the trajectory of the trigger of the rifle or pistol roughly follows an arc of a circle whose radius is from near the second joint of the finger pulling the trigger to the trigger itself when the rifle or pistol is held in position. Effect of the Invention

[0018] The present invention can provide a pistol and its position adjustment mechanism that enable stable aiming and trigger pulling with a simple configuration. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a perspective view of a rifle according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a simplified perspective view of the rifle shown in FIG. 1. [Diagram 3] FIG. 3 is a plan view of FIG. 2. [Figure 4] 4 is a schematic cross-sectional view taken along the line AA in FIG. 3 (the shoulder rest is not shown). [Diagram 5] FIG. 3 is an exploded perspective view of FIG. 2. [Figure 6] FIG. 6 is an exploded perspective view of the trigger assembly shown in FIG. 5. [Figure 7] FIG. 7 is a perspective view showing the trigger assembly shown in FIG. 6 in an assembled state. [Figure 8]FIG. 6 is a diagram showing the grip and trigger assembly shown in FIG. 5 combined together. [Figure 9] FIG. 3 is an exploded perspective view of the shoulder rest portion of the rifle shown in FIG. 2. [Figure 10] This is a diagram showing the trigger pull direction of a rifle with the simplified configuration of Figure 2 adjusted for roll, pitch, and yaw. [Figure 11] 11 is an enlarged front view of FIG. 10 as a plan view. [Figure 12] FIG. 1 is a schematic plan view showing the state of a person's fingertips, wrist, and elbow when holding a conventional rifle with the trigger pulled toward the rear of the barrel. [Figure 13] FIG. 1 is a schematic front view showing the state of a person's fingertips, wrist, and elbow when holding a conventional rifle with the trigger pulled toward the rear of the barrel. [Figure 14] This is a diagram in which an XY plane is superimposed on a plan view schematic diagram showing the state of a person's fingertips, wrist, and elbow when holding a rifle of this embodiment with the trigger pull direction adjusted in the roll, pitch, and yaw directions. [Figure 15] This is a diagram in which an XY plane is superimposed on a schematic front view showing the state of a person's fingertips, wrist, and elbow when holding a rifle of this embodiment with the trigger pulled adjusted in the roll, pitch, and yaw directions. [Figure 16] This is a diagram in which an XY plane is superimposed on a schematic rear view showing the state when the rifle of this embodiment is held with the trigger pulled in the roll, pitch, and yaw directions, as viewed from directly behind the shooter, in other words, as viewed from the rear of the barrel toward the muzzle. [Figure 17] FIG. 2 is an exploded perspective view of the pistol according to the present embodiment. [Figure 18] FIG. 1 is a perspective view showing an assembled state of a pistol according to the present embodiment. [Figure 19] FIG. 13 is a front view of an adjustment member according to a second embodiment, in which the hatched portion represents a Z-axis brake and a vertical cross-sectional view of the periphery thereof. [Figure 20] FIG. 11 is a perspective view of an adjustment member according to a second embodiment. [Figure 21] FIG. 11 is a right side view of the adjustment member according to the second embodiment. [Figure 22] FIG. 11 is an exploded perspective view of an adjustment member according to a second embodiment. [Diagram 23] FIG. 13 is a diagram showing the trajectory of pulling the trigger of a rifle or pistol according to a fourth embodiment. [Figure 24] FIG. 24 is a diagram showing the trajectory of pulling the trigger of a rifle or pistol of the fourth embodiment, showing a state in which the trigger is pulled harder than in the state shown in FIG. 23. [Diagram 25] 25 is a diagram showing the trajectory of pulling the trigger of a rifle or pistol of the fourth embodiment, showing a state in which the trigger is pulled even harder than in the state shown in FIG. 24. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] (Rifle construction, function and effects) The configuration, action, and effect of the rifle 1 of this embodiment will be described below with reference to Figs. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16. As shown in Fig. 2, the rifle 1 can adjust the direction of pulling the trigger 10 to the rotational direction roll around the X-axis, the rotational direction pitch around the Y-axis, and the rotational direction yaw around the Z-axis. The rotational adjustment to roll, pitch, and yaw is 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 of pulling the trigger 10 is toward the rear of the barrel.

[0021] In this embodiment, both the terms "rotational adjustment" and simple "adjustment" are used, but "rotational adjustment" is used when adjustment is made along the spherical surfaces of spherical portion 4 and the second spherical portion, which will be described later, as shown in Figures 3 and 4. Simple "adjustment" is a concept that includes "rotational adjustment" and includes adjustment that is not made along the spherical surfaces of spherical portion 4 and the second spherical portion.

[0022] 4 and 5, the rifle 1 roughly comprises a forend 2, a grip 3, a spherical portion 4, a trigger assembly 5, a clamp 6, a buttstock 7, and a shoulder rest 8. The spherical portion 4 connects the forend 2 and the buttstock 7 with joints 11 and 12.

[0023] Then, the annular portion 13 of the trigger assembly 5 is fitted into the second spherical portion 14 of the grip 3, and screws 16 are inserted into both of the opposing screw holes 15a, 15b of the trigger assembly 5 to screw together; the second spherical portion 14 is tightened by the annular portion 13, and the trigger assembly 5 is fixed to the grip 3.

[0024] Then, the hole 17 of the clamp 6 is brought into contact with the spherical surface of the spherical portion 4, and the screws 19a, 19b, 19c, and 19d are inserted through the screw holes 18a, 18b, 18c, and 18d that have penetrated the clamp 6, respectively. The inserted screws 19a, 19b, 19c, and 19d are then screwed into the screw holes 20a, 20b, 20c, and 20d on the upper edge of the second spherical portion 14 of the grip 3, and fixed together.

[0025] When the screws 19a, 19b, 19c, and 19d are screwed into the screw holes 20a, 20b, 20c, and 20d on the upper edge of the second spherical portion 14 of the grip 3 and fixed together, the direction in which the trigger is pulled can be adjusted mainly in the yaw direction from the rear of the barrel, that is, to the left or right as shown in FIG. 3. This is because, by changing (adjusting) the location where the hole 17 of the clamp 6 abuts against the spherical surface of the spherical portion 4, the direction in which the trigger 10 is pulled can be adjusted mainly in the yaw direction, that is, by rotating 5° to 20° to the left or right from the rear of the barrel. This is the trigger 10 mechanism of the rifle 1.

[0026] 6 and 7 show the details of the trigger assembly 5. The trigger assembly 5 has a front-rear adjustment block 31. The front-rear adjustment block 31 can be fixed to any position on the rail 32a by hooking its groove 31a onto a rail 32a of a base 32, moving it in the direction of arrow X1, inserting a screw 33 into a screw hole 31b, and narrowing the width of the groove 31a by tightening the screw 33. That is, the front-rear adjustment block 31 can adjust its front-rear position (position in the direction of arrow X1).

[0027] The trigger assembly 5 also has a left-right adjustment block 35. The left-right adjustment block 35 has a groove 35a that engages with the protrusions 31c and 31d of the front-rear adjustment block 31. The left-right adjustment block 35 can be fixed to an arbitrary position on the rail 31d by hooking the groove 35a onto the rail 31d of the front-rear adjustment block 31, moving the groove 35a in the direction of arrow Y1, inserting a screw 36 into a screw hole 35b, and tightening the screw 36 to narrow the width of the groove 35a. That is, the left-right adjustment block 35 can be adjusted in its left-right position (position in the direction of arrow Y1).

[0028] The trigger assembly 5 also has a vertical adjustment block 37. The vertical adjustment block 37 has a groove 37a into which the pole 35c of the left-right adjustment block 35 is inserted. The vertical adjustment block 37 can be fixed to any pole 35c position by moving the groove 37a along the pole 35c of the left-right adjustment block 35 in the direction of arrow Z1, inserting a screw 38 into a screw hole 37b, and narrowing the width of the groove 37a by tightening the screw 38. That is, the vertical adjustment block 37 can adjust its vertical position (position in the direction of arrow Z1). The vertical adjustment block 37 plays the role of the trigger 10. The vertical adjustment block 37 can also be adjusted in the yaw direction with the ball 35c as an axis.

[0029] Furthermore, FIG. 8 shows the state in which the trigger assembly 5 is attached to the grip 3. The annular portion 13 of the trigger assembly 5 is disposed and fixed on the spherical surface 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 abuts against the spherical surface of the second spherical portion 14, by changing (adjusting) the place of abutment, the direction of pulling the trigger 10 can be rotationally adjusted in the roll direction of rotation around the X axis, the pitch direction of rotation around the Y axis, and the yaw direction of rotation around the Z axis.

[0030] Furthermore, FIG. 9 shows the configuration of the shoulder rest 8 portion. First, there are a front-back adjustment bar 41a, a recess 42a into which the front-back adjustment bar 41a is inserted, a front-back adjustment bar 41b, and a recess 42b into which the front-back adjustment bar 41b is inserted. By how much the front-back adjustment bars 41a and 41b are inserted into the recesses 42a and 42b, the position of the shoulder rest 8 in the front-back direction Y1 can be adjusted. Note that by changing the insertion depth of the front-back adjustment bar 41a and the front-back adjustment bar 41b, the shoulder rest 8 can be rotationally adjusted in the pitch direction.

[0031] And it has a left-right adjustment screw 43a, a horizontally long hole 44a through which the left-right adjustment screw 43a passes, and a screw tightening hole 45a to which the left-right adjustment screw 43a that has passed through the horizontally long hole 44a is screwed. And it has a left-right adjustment screw 43b, a horizontally long hole 44b through which the left-right adjustment screw 43b passes, and a screw tightening hole 45b to which the left-right adjustment screw 43b that has passed through the horizontally long hole 44b is screwed. When the left-right adjustment screws 43a and 43b are screwed into the screw tightening holes 45a and 45b, the position of the shoulder rest 8 in the left-right direction X1 can be adjusted by at which position in the horizontally long holes of the horizontally long holes 44a and 44b the screwing is performed. Note that by changing the stopping positions of the left-right adjustment screw 43a and the left-right adjustment screw 43b, the shoulder rest 8 can be rotationally adjusted in the roll direction.

[0032] The shoulder rest 8 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 is screwed after passing through a vertically elongated hole 48. When the vertical adjustment screw 46 is screwed into the screw hole 47 and the block 49, the position of the shoulder rest 8 in the vertical direction Z1 can be adjusted by determining at what position in the vertically elongated hole of the vertically elongated hole 48 the block 49 is positioned and screwed.

[0033] 10 and 11 show the state in which the direction in which the trigger 10 is pulled is rotated and adjusted from the rear of the barrel in the roll, pitch, and yaw directions. This trigger 10 is a so-called electronic trigger. By rotating and adjusting the direction in which the trigger 10 is pulled from the rear of the barrel to the left, a right-handed person can pull the trigger 10 in the direction from the wrist to the elbow of the arm that pulls the trigger 10 when holding the rifle 1.

[0034] Due to the structure of the human body, the movement of the fingers due to the contraction of muscles present on the wrist side of the elbow is transmitted to the fingers through tendons. From an ergonomic point of view, the state in which the tendon movement line is linear is the most responsive from the viewpoint of ergonomics. The trigger 10 is structured so that the trigger 10 can be pulled from the wrist toward the elbow of the arm that pulls the trigger 10, rather than toward the rear of the gun barrel, so that the wrist does not bend and the tendon movement line becomes linear. 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 fingers is maximized and high accuracy can be achieved. The adjustment angle of the grip 3 and / or the trigger 10 cannot be expressed as a fixed numerical value because the optimal solution differs depending on the shape and dimensions of the gun, the physique of the shooter, the condition of the clothing worn, etc. Therefore, the adjustment angle must be made variable, or the optimal value must be selected from multiple fixed numerical models created by assigning numerical values ​​to multiple types, and fitting must be performed, like selecting the size of clothing.

[0035] 12 and 13 show the posture of a human holding a rifle 21 with the trigger 10 pulled in the conventional direction toward the rear of the barrel. As shown by the bend in the arm a1, the trigger 10 is pulled with a bent wrist, which results in the trigger 10 being pulled in an obviously unstable position.

[0036] The member that adjusts the position and orientation of the rifle 1 relative to the human body when the rifle 1 is held in a position is referred to as the adjustment member. The adjustment member may be provided on at least one of the trigger 10 and the grip 3, or on both.

[0037] 14 and 15 show the posture of a person holding a rifle 1 in which the direction in which the trigger 10 is pulled is adjusted by rotating it from the rear of the barrel to the right, so that the trigger 10 is pulled in the direction from the wrist to the elbow of the arm that pulls the trigger 10. 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 are close to being in a straight line. As shown by the bending of the arm a2, the trigger 10 is pulled in a natural state with the wrist not bent, so that the trigger 10 is pulled in a stable state. In further other words, FIGS. 14 and 15 show the posture of a person holding a rifle 1 that allows the trigger, including the trigger 10, or the finger that pulls the trigger 10 to be pulled in the direction from the elbow. In addition, when a gun is placed on an XY plane, which is made up of an X-axis whose value increases toward the right and a Y-axis whose value increases toward the top, with the trigger 10 as the origin, as shown in FIG. 14, the direction in which the trigger 10 is pulled by a right-handed shooter falls within the range of the third quadrant (Q3) of the coordinate system. When the gun is placed as shown in FIG. 14, the direction in which the trigger 10 is pulled by a left-handed shooter falls within the range of the second quadrant (Q2) of the coordinate system, with the trigger 10 as the origin. When a gun is placed on the XY plane, which is made up of an X-axis whose value increases toward the right and a Y-axis whose value increases toward the top, as shown in FIG. 15, with the trigger 10 as the origin, the direction in which the trigger 10 is pulled falls within the range of the third quadrant (Q3) of the coordinate system, with the trigger 10 as the origin, regardless of the handedness of the shooter. If the gun is placed on top of the XY plane described above in a position with trigger 10 as its origin, as in Figure 16 (when viewed from directly behind the shooter, in other words, from the rear of the gun barrel looking toward the muzzle), the direction in which trigger 10 is pulled by a right-handed shooter will be in the fourth quadrant (Q4) of the coordinate system with trigger 10 as its origin. If the gun is placed on top of the XY plane described above in a position with trigger 10 as its origin, as in Figure 16, the direction in which trigger 10 is pulled by a left-handed shooter will be in the third quadrant (Q3) of the coordinate system with trigger 10 as its origin.

[0038] (Major Effects Obtained by the Present Embodiment) It is possible to provide a rifle 1 and trigger 10 mechanism that allows stable aiming and trigger pulling with a simple configuration that allows the direction in which the trigger 10 is pulled to be rotated leftward from the rear of the gun barrel.

[0039] The rifle 1 and trigger 10 mechanism not only allow the direction in which the trigger 10 is pulled to be adjusted left and right, i.e., in the yaw direction, but also in the roll and pitch directions. In other words, the rifle 1 and trigger 10 mechanism are capable of adjusting the direction in which the trigger 10 is pulled in the X, Y and Z axis directions. For example, as shown in Figures 6 and 7, the trigger assembly 5 itself is capable of adjusting the direction in which the trigger 10 is pulled in the X1, Y1 and Z1 axis directions.

[0040] 8, when the trigger assembly 5 is attached to the grip 3, the annular portion 13 of the trigger assembly 5 is fixedly disposed 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) directions. As a result, the relative position of the grip 3 and the trigger 10 can be adjusted in the XYZ directions, and the relative attitude can be adjusted in the RPY direction, for a total of six degrees of freedom.

[0041] Furthermore, as shown in Figure 9, the shoulder rest 8 can be adjusted in the X2, Y2, and Z2 axis directions. This can solve the problem of the optimum relative position between the shoulder rest 8 and the grip 3 differing depending on the physique of each shooter.

[0042] (Other forms) The rifle 1 according to the present embodiment described above is one example of a preferred form of the present invention, but the present invention is not limited to this and various modifications are possible without departing from the spirit and scope of the present invention.

[0043] 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 adjusted by rotating from the rear of the barrel to the left. However, in the case of a left-handed rifle 1, it is assumed that the trigger 10 is pulled with the index finger of the left hand, and the direction in which the trigger 10 is pulled is adjusted by rotating from the rear of the barrel to the right.

[0044] In addition, in the rifle 1 of this embodiment, the direction in which the trigger 10 is pulled is adjusted to the left. However, the direction in which the trigger 10 is pulled may be adjusted to the left or right, and / or forward or backward, and / or upward or downward. Furthermore, in the rifle 1 of this embodiment, the direction in which the trigger is pulled may be adjusted in the roll and / or pitch and / or yaw directions.

[0045] Therefore, the second spherical portion 14 does not necessarily have to be spherical. However, when it is desired to rotationally adjust the trigger assembly 5, the second spherical portion 14 may be made spherical. Further, since the adjustment mechanism in the X2, Y2, and Z2 directions of the shoulder rest 8 shown in FIG. 9 is not an essential component, it can be omitted.

[0046] In addition, the rifle 1 of the present embodiment can rotationally adjust the direction of pulling the trigger 10 by 5° to 20° from the rear of the barrel to the left or right. However, this angle can be changed, that is, the adjustment range can be set, such as exceeding 0° and being 75°, 1° to 10°, 1° to 30°, 5° to 45°, etc. Further, the rifle 1 of the present embodiment can set an adjustment range of exceeding 0° and being 30° upward and exceeding 0° and being 75° downward from the rear of the barrel in the direction of pulling the trigger 10. These adjustment ranges are within the range where any person can stably pull the trigger from an ergonomic perspective. For example, the reason for setting a wider adjustment range downward than upward from the rear of the barrel in the direction of pulling the trigger 10 is that when the shooter holds the rifle 1, the elbow of the arm pulling the trigger 10 is below the shoulder and is located on the shoulder side of the trigger, which is a natural and comfortable posture. This generally applies to shooters with a standard body type. Further, the grip 3 and / or the trigger 10 may be provided with an adjustment mechanism for X, Y, Z, roll, pitch, and yaw.

[0047] In addition, although this embodiment has been described by taking the rifle 1 as an example, it goes without saying that it can also be applied to other firearms, such as pistols (handguns, revolvers), machine guns, sports guns, etc. Moreover, it can also be applied to firearms other than rifles. Military firearms, etc., generally do not require extreme shooting accuracy, and it is important that they are inexpensive, can be mass-produced, are easy to handle, and do not malfunction. From among those that satisfy these conditions, models with good shooting accuracy are often selected for sniping. In addition, this embodiment is preferably applied to firearms for sports, that is, firearms intended for target shooting competitions and hunting. Target shooting competition guns and hunting guns are not restricted by the requirements of military firearms and require high shooting accuracy. Among them, target shooting competition guns are not restricted by the requirements of military firearms and require extreme shooting accuracy. Note that hunting guns or inexpensive target shooting competition guns for rogues may be diverted for military use.

[0048] For example, the pistol 51 according to this embodiment will be described with reference to FIGS. 17 and 18. Basically, since the pistol 51 has substantially the same configuration as the rifle 1, the reference numerals assigned to the respective components of the pistol 51 are the same as those assigned to the members of the rifle 1 having the same function, and the description of each member will be omitted.

[0049] In the case of a pistol, from the ergonomic perspective, when the pistol is held in a state of maximum response sensitivity, the muzzle does not point in the direction of the target. When the grip of the pistol is held with the right arm and the trigger is pulled with the index finger of the right hand, it has been found that the most stable way to accurately align the pistol's sight is to rotate the trigger-pulling direction clockwise around the Z3 axis, slightly clockwise around the X3 axis, and slightly counterclockwise around the Y3 axis in FIG. 18.

[0050] Furthermore, although the trigger 10 of the rifle 1 is a so-called electronic trigger, so-called mechanical triggers such as hydraulic, wire, link, etc. can also be used for the following reasons. For example, a hydraulic trigger can be used by connecting a hydraulic tube from the trigger assembly 5 to the mechanism of the gun. A wire trigger can be used by connecting a wire like a bicycle brake or gear shift wire from the trigger assembly 5 to the mechanism of the gun. Furthermore, a link mechanism trigger can be used by connecting the movement of the trigger to the mechanism of the gun via a lever or link. However, an electronic trigger does not require a mechanical connection between the mechanism and the trigger, making it easier to configure the rifle 1.

[0051] In addition, the rifle 1 of this embodiment is designed so that the direction in which the trigger 10 is pulled can be adjusted by rotating it 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 being rotated from the rear of the barrel to the left or right. Furthermore, the adjustment mechanism may be omitted and the trigger may be molded with a rotation angle in advance. In other words, the adjustment mechanism may be omitted to reduce costs by adjusting the trigger in the XYZRPY directions in advance to suit the physique of an average shooter.

[0052] Furthermore, the trigger 10 mechanism of the rifle 1 of this embodiment rotates (adjusts) the location where hole 17 of clamp 6 comes into contact with the spherical surface of spherical portion 4, thereby adjusting the direction in which trigger 10 is pulled to the left or right from the rear of the barrel. However, the trigger 10 mechanism of the rifle 1 is not limited to this mechanism, and various mechanisms can be used that allow the direction in which trigger 10 is pulled to be rotated in roll, pitch, or yaw.

[0053] 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. 9, and the directions around the X3 axis, Y3 axis, and Z3 axis shown in FIGS. 16 and 17, respectively, XYZ are letters that generally represent three-dimensional coordinates.

[0054] (Second embodiment) The following describes the configuration of the adjustment member 60 according to the second embodiment, which adjusts the position and orientation of the rifle 1 and the human body when the rifle 1 is held. In addition to the trigger 10 and the grip 3, at least one of the stock 7 (cheek rest), shoulder rest 8 (shoulder rest), and fore-end 9 (shown in FIG. 1) may each be adjustable with six degrees of freedom. The six degrees of freedom adjustment is to adjust the direction in which the trigger 10 is pulled to roll, pitch, and yaw. By configuring the rifle 1 and its trigger mechanism in this way, it becomes easier to adapt to the shooter's physique, body shape, shooting posture, etc., and it is expected to improve the accuracy of the shot. Although the six degrees of freedom adjustment is the basis, it is also possible to select by fitting, whether it is an adjustment with seven or more degrees of freedom, or an adjustment with five or less degrees of freedom. It is also possible to order a best-fitting state.

[0055] 19, 20, 21, and 22 show an adjustment member 60 for adjustment of six degrees of freedom. The adjustment member 60 has a base 61, a Z-axis slider 62, a Y-axis brake 63, a Y-axis slider 64, an X-axis slider 65, and a ball joint 66.

[0056] The base 61 has through holes 611, 612 penetrating from the upper surface to the lower surface thereof. The base 61 also has an elongated through groove 613 penetrating from the upper surface to the lower surface of the base 61, connecting the side surfaces of the through holes 611, 612.

[0057] Then, one pole 621 fixed to the upper surface of Z-axis slider 62 is inserted into through-hole 611 from the lower surface of base 61, and the other pole 622 is inserted into through-hole 612 from the lower surface of base 61. In this state, screw 614 is inserted into screw hole 616, and screw 615 is inserted into screw hole 617.

[0058] The screw 614 is screwed from the front side 613a of the through groove 613 of the screw hole 616 to the back side 613b of the through groove 613, straddling the through groove 613. The screw 615 is screwed from the front side 613a of the through groove 613 of the screw hole 617 to the back side 613b of the through groove 613, straddling the through groove 613. The back side 613b of the through groove 613 of the screw holes 616 and 617 has a thread groove, but the front side 613a of the through groove 613 of the screw holes 616 and 617 has no thread groove. Therefore, the screws 614 and 615 are screwed only to the back side 613 of the through groove 613, and the head bearing surfaces of the screws 614 and 615 hit the peripheral surfaces 618 and 619 of the entrances of the screw holes 616 and 617, respectively. Then, by tightening the screw to pull the inner side 613b of the through groove 613 toward the head of the screw, a force can be applied to narrow the width of the through groove 613.

[0059] Then, the width dimension of the through groove 613 gradually narrows, and the hole diameter of the through holes 611, 612 becomes smaller, so that the through hole 611 tightens the circumferential surface of the pole 621, and the through hole 612 tightens the circumferential surface of the pole 622. Then, the through hole 611 and the pole 621, and the through hole 612 and the pole 622 are fixed together. Thus, among the position adjustments of the base 61, the poles 621, 622 can be fixed at desired positions, and the height (Z-axis direction shown in FIG. 22) can be adjusted.

[0060] Then, the Y-axis rail 641 on the upper surface of the Y-axis slider 64 and the Y-axis engagement portion 623 on the lower surface of the Z-axis slider 62 are engaged. Then, the Y-axis rail 641 and the Y-axis engagement portion 623 slide in the Y-axis direction shown in FIG. 22, and the position in the Y-axis direction can be adjusted. Then, the screw 614 is inserted into the screw hole 616, and prior to inserting the screw 615 into the screw hole 617, the Y-axis brake 63 is inserted into the square hole 624 of the Z-axis slider 62. After this insertion, the screw 626 is inserted into the screw hole 625 formed on the side surface of the Z-axis slider 62 and the screw is tightened to press the Y-axis brake 63 against the Y-axis rail 641, and the fixed position of the Y-axis rail 641 and the Y-axis engagement portion 623 is determined.

[0061] Then, the X-axis rail 642 on the lower surface of the Y-axis slider 64 and the X-axis engaging portion 651 on the upper surface of the X-axis slider 65 are engaged. Then, the X-axis rail 642 and the X-axis engaging portion 651 slide in the X-axis direction shown in FIG. 22, and the position in the X-axis direction can be adjusted. Then, a screw 653 is inserted into a screw hole 652 formed on the side surface of the X-axis slider 65, and the groove 654 is screwed. Then, the width dimension of the groove 654 narrows, and the width dimension of the X-axis engaging portion 651 narrows, and the X-axis rail 642 and the X-axis engaging portion 651 are fixed together so as to be pressed against each other. Then, the fixed position of the X-axis rail 642 and the X-axis engaging portion 651 is determined. The mechanism for narrowing the width dimension of the groove 654 is the same as the mechanism for narrowing the groove width of the through groove 613.

[0062] Then, a spherical ball 655 attached to the lower surface of the X-axis slider 65 is inserted into a hole 661 of a ball joint 66. The ball joint 66 is made of hard rubber, and by applying a force in the direction of the arrows a, a to open the groove 662, the hole 661 is elastically deformed and widened in a direction perpendicular to the groove 662. When the ball 655 is inserted into the hole 661 in this state and the force applied in the direction of the arrows a, a is released, the elastic deformation of the ball joint 66 is also released and the ball joint 66 returns to the state before the elastic deformation. The hole 661 is spherical, and its diameter is slightly larger than the diameter of the ball 655. Therefore, when the ball 655 is inserted into the hole 661, the ball 655 can rotate in three axial directions in the hole 661.

[0063] Then, a screw 665 is inserted into a screw hole 663 provided on the side surface of the ball joint 66, and a screw 666 is inserted into a screw hole 664 provided on the side surface of the ball joint 66, and the screws are tightened. Then, the width dimension of the groove 662 narrows, and the diameter dimension of the hole 661 narrows, and the ball 655 and the hole 661 are fixed together so as to be pressed against each other. Then, the fixing positions of the ball 655 and the hole 661 are determined. The mechanism for narrowing the width dimension of the groove 662 is the same as the mechanism for narrowing the groove width of the through groove 613.

[0064] The lower surface of the adjustment member 60 according to the second embodiment is then attached to the stock 7 (cheek rest), shoulder rest 8 (shoulder rest), and fore-end 9. The second embodiment can be combined with the previous embodiment. The adjustment member 60 is merely an example, and is not limited to those shown in Figures 19, 20, 21, and 22, and any member having a similar function can be used.

[0065] At least one of the stock 7 (cheek rest), shoulder rest 8 (shoulder rest), and fore-end portion 9 may have the adjustment member 60. The mechanism that the adjustment member 60 has is called a position adjustment mechanism.

[0066] (Third embodiment) The third embodiment is a pistol that has an adjustment member that adjusts the position and orientation of the pistol and the human body when the rifle is turned into a pistol and held. The adjustment member of this pistol is such that at least one of the trigger and the grip can be adjusted with six degrees of freedom. This is because in the case of a pistol, the gun and the shooter come into contact with each other at two points, the grip and the trigger. Although six degrees of freedom are the basis for each adjustment, it is also possible to select adjustment with seven or more degrees of freedom, or adjustment with five or less degrees of freedom, which can be omitted, through fitting. It is also possible to custom-make the best fitting state.

[0067] The third embodiment relates to a position adjustment mechanism for a pistol having an adjustment member that adjusts the position and orientation of the pistol and the human body when the pistol is held in a position. In this position adjustment mechanism, the adjustment member is capable of adjusting at least one of the trigger and the grip with six degrees of freedom. This is because, in the case of a pistol, the shooter comes into contact with the gun at two points, the grip and the trigger.

[0068] The pistol may be the same as that shown in Figures 17 and 18, or it may be another pistol. Also, the adjustment member may be the same as adjustment member 60 shown in Figures 19, 20, and 21, or it may be another adjustment member. If adjustment member 60 is used, it is preferable that its underside be attached to at least one of the trigger and the grip.

[0069] (Fourth embodiment) Fig. 23 is a diagram showing a trajectory 81 of pulling the trigger 80 of a rifle or pistol of the fourth embodiment. Fig. 24 is a diagram showing a trajectory 81 of pulling the trigger 80 of a rifle or pistol of the fourth embodiment, showing a state in which the trigger 80 is pulled in the direction of an arrow 82 more strongly than in the state of Fig. 23. Fig. 25 is a diagram showing a trajectory 81 of pulling the trigger 80 of a rifle or pistol of the fourth embodiment, showing a state in which the trigger 80 is pulled in the direction of an arrow 82 even more strongly than in the state of Fig. 24.

[0070] From Figures 23, 24, and 25, it can be seen that the trajectory 81 of pulling the trigger 80 of a rifle or pistol roughly follows the arc of a circle (i.e., trajectory 81) whose radius is from the center of rotation 83 near the second joint of the finger pulling the trigger 80 to the trigger 80 when the rifle or pistol is held.

[0071] Here, the "nearby" in "near the second joint of the finger pulling the trigger 80" includes "the second joint of the finger pulling the trigger 80" itself. Moreover, this "nearby" range refers to the palm side of "the first joint of the finger pulling the trigger 80" and the fingertip side of the palm. "The finger pulling the trigger 80" is usually the index finger, and is depicted as such in Figures 23, 24, and 25. However, "the finger pulling the trigger 80" may also be the middle finger, etc.

[0072] By employing the rifle or pistol of the fourth embodiment and its position adjustment mechanism, it is possible to provide a rifle or pistol with good response sensitivity from an ergonomic standpoint. The rifle or pistol of the fourth embodiment can be manufactured by providing a trigger assembly having a trigger 80 that rotates on the track 81, the axis of rotation being coaxial with the rotation center 83 of the track 81 along which the trigger 80 is pulled. [Explanation of symbols]

[0073] 1. Rifle (gun) 3 Grip 7 Buttstock (cheek rest) 8 Shoulder rest (shoulder support) 9 Forehead section 10 Trigger

Claims

1. A rifle having an adjustment member for adjusting a position and an orientation of the rifle relative to a human body when the rifle is held, In the rifle, at least one of the cheek rest, shoulder rest, and fore-end portion of the adjustment member can be adjusted with five degrees of freedom or less, six degrees of freedom, or seven degrees of freedom or more.

2. 2. The rifle according to claim 1, wherein the adjustment member is provided on at least one or both of the trigger and the grip.

3. A rifle position adjustment mechanism having an adjustment member for adjusting the position and orientation of a rifle relative to a human body when the rifle is held, comprising: The adjustment member is a position adjustment mechanism for a rifle in which at least one of the cheek rest, shoulder rest, and fore-end portion, in addition to the trigger and grip, can be adjusted with five degrees of freedom or less, six degrees of freedom, or seven degrees of freedom or more.

4. 4. The position adjustment mechanism for a rifle according to claim 3, wherein the adjustment member is provided on at least one or both of the trigger and the grip.

5. A pistol having an adjustment member for adjusting the position and orientation of the pistol relative to a human body when the pistol is aimed at a target, The adjustment member of the pistol is such that at least one of the trigger and the grip can be adjusted with five degrees of freedom or less, six degrees of freedom, or seven degrees of freedom or more.

6. A pistol position adjustment mechanism having an adjustment member for adjusting a position and orientation of a pistol relative to a human body when the pistol is aimed at a target, comprising: The adjustment member is a position adjustment mechanism for a pistol, in which at least one of the trigger and the grip can be adjusted with five degrees of freedom or less, six degrees of freedom, or seven degrees of freedom or more.

7. The trajectory of a rifle or pistol trigger pull is When holding a rifle or pistol, the trigger is approximately aligned along an arc of a circle having a radius from the second joint of the finger pulling the trigger to the trigger. Rifle or pistol.

8. The trajectory of a rifle or pistol trigger pull is When holding a rifle or pistol, the trigger is approximately aligned along an arc of a circle having a radius from the second joint of the finger pulling the trigger to the trigger. The alignment mechanism of a rifle or pistol.

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