A pressing device that presses a nozzle, and an air gun having the pressing device

Abstract

To provide a pressing device for pressing a nozzle which can improve causes of reduction of the targeting accuracy and prevent leakage of compressed air, and to provide an air gun having the pressing device.SOLUTION: In a pressing device for pressing a nozzle, a hammer is fully cocked to generate compressed air to press a nozzle for jetting the generated compressed air.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a pressing device that presses a nozzle for ejecting compressed air against a magazine, and an air gun having the pressing device.

Background Art

[0002] Regarding a so-called air gun, by raising a hammer and pulling a trigger, compressed air is ejected from a nozzle into a magazine. By this ejection, there is a type that fires a bullet held in a cartridge disposed in the magazine.

[0003] Such an air gun is disclosed, for example, in Utility Model Registration No. 3175969, "In a simulated gun that raises a hammer and locks it to a stopper, accumulates the spring of a piston cylinder device interlocked with the hammer, pulls the trigger to release the locking of the stopper, generates compressed air by the piston cylinder device by releasing the accumulation of the spring, and fires a bullet by the compressed air, in order to reduce the load when starting the cocking operation by raising the hammer, a non-linear spring is used as the spring acting on the operating member of the piston cylinder device, characterized by a cocking load reduction device."

[0004] However, in the above device, by pulling the trigger, the nozzle is pressed against the magazine, and compressed air is ejected from the nozzle into the magazine. However, if the trigger is not pulled strongly, the pressing force of the nozzle against the magazine weakens, and compressed air may leak from that part. Therefore, it is recommended to pull the trigger strongly to maintain the pressing force of the nozzle against the magazine.

[0005] Furthermore, as described above, if the trigger is pulled strongly, the aim will shift and the hitting accuracy will decrease. Also, in a real gun, in order not to reduce the hitting accuracy, the trigger is not pulled strongly. Therefore, there is a problem that different handling must be done for the operation of pulling the trigger between a real gun and an air gun that mimics a real gun.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0007] The present invention has been made by paying attention to the above points, and the problem is to provide a pressing device that presses a nozzle capable of improving the cause of the decrease in hitting accuracy and preventing the leakage of compressed air, and an air gun having the pressing device.

Means for Solving the Problems

[0008] In order to solve the above problems, the pressing device according to the first aspect presses a nozzle for injecting the generated compressed air by fully cocking a hammer to generate the compressed air.

[0009] Further, the pressing device according to the second aspect has a pressing device that presses a nozzle for injecting the generated compressed air by fully cocking a hammer to generate the compressed air. The pressing device has a hammer part that engages with the hammer and a nozzle cam that rotates by engaging with the hammer part. When the hammer is fully cocked, the hammer part rotates by engaging with the hammer, the nozzle cam that engages with the hammer part rotates, and the nozzle cam presses the nozzle.

[0010] Further, the air gun according to the third aspect has a pressing device that presses a nozzle for injecting the generated compressed air by fully cocking a hammer to generate the compressed air, a cartridge case that holds bullets, and a cartridge disposed in the cartridge case. When the hammer is fully cocked, the pressing device presses the nozzle against the cartridge.

[0011] Also, the air gun according to the fourth aspect has a pressing device that presses a nozzle for injecting the generated compressed air by fully cocking a hammer to generate compressed air, a magazine that holds bullets, and a cartridge disposed in the magazine. The pressing device has a hammer part that engages with the hammer and a nozzle cam that rotates by engaging with the hammer part. When the hammer is fully cocked, the hammer part rotates by engaging with the hammer, the nozzle cam that engages with the hammer part rotates, and the nozzle cam presses the nozzle against the cartridge.

Advantages of the Invention

[0012] Since the present invention is configured and operates as described above, it is possible to provide a pressing device that presses a nozzle capable of improving the cause of a decrease in hitting accuracy and preventing leakage of compressed air, and an air gun having the pressing device.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Best Mode for Carrying Out the Invention

[0014] Hereinafter, with reference to the illustrated embodiments, the pressing device 10 of the present embodiment and the air gun 500 of the present embodiment having the pressing device 10 will be described. The air gun 500 is preferably of a so-called revolver type. The barrel 501 is a passage through which the bullet B passes, and the cartridge chamber 502 can be loaded with a plurality of cartridges 520 (see FIG. 7) described later. Hereinafter, in the state of viewing from the side of the air gun 500, the direction from the piston cylinder device 550 to the muzzle 530 is referred to as the front F direction. Similarly, the direction from the muzzle 530 to the piston cylinder device 550 is referred to as the rear R direction. The bullet B is preferably a BB bullet.

[0015] The cartridge 520 is for loading the bullet B, and the bullet B is held in a fixed position until firing in the state where the cartridge 520 is loaded in the cartridge chamber 502, and is fired from the muzzle 530 by the compressed air ejected from the nozzle 50.

[0016] The nozzle 50 is disposed on the rear R side of the cartridge chamber 502, and the nozzle 50 is connected to the piston cylinder device 550 by a hose portion 60 composed of a pipe described later. The piston cylinder device 550 includes a cylinder 560 and a piston 570 disposed at the lower part of the grip portion of the gun body. The piston cylinder device 550 has a spring 580 for accumulating pressure of the piston 570, and the spring 580 is disposed inside the piston 570.

[0017] In this embodiment, the cylinder 560 is fixed to the gun body side, and the piston 570 is arranged slidably with respect to the cylinder 560 by the expansion and contraction force of the above-mentioned spring 580. Further, the nozzle 50 further has a nozzle packing 51 in order to be in close contact with the cartridge 520 arranged in the cartridge chamber 502.

[0018] Also, the air gun 500 has a pressing device 10 that presses the nozzle 50 against the cartridge 520 arranged in the cartridge chamber 502 by the full cocking operation of the hammer 20. By having this pressing device 10, it is possible to prevent compressed air from leaking by bringing the nozzle 50 into close contact with the cartridge 520 arranged in the cartridge chamber 502.

[0019] Also, the air gun 500 has an inner frame 650 that constitutes a so-called inner skeleton, and the pressing device 10 is arranged on the inner frame 650.

[0020] The pressing device 10 has a hammer part 30 that engages with the hammer 20 and a nozzle cam 40 that rotates by engaging with the hammer part 30. The hammer 20 is for performing a half cocking or full cocking operation as will be described later, and has a finger hook part 21 for a user (not shown) to place a finger on the hammer 20 and an engaging part 22 that engages with the hammer part 30. The hammer 20 is pivotally supported and attached to the air gun 500 rotatably by a rotating shaft part 25.

[0021] When the hammer 20 is fully cocked, by engaging with the hammer 20, the hammer part 30 rotates, and by engaging with the hammer part 30, the nozzle cam 40 rotates, and as a result, the nozzle cam 40 presses the nozzle 50. In this way, by pressing the nozzle 50 against the cartridge 520 arranged in the magazine 502 by the pressing device 10, the nozzle 50 and the cartridge 520 arranged in the magazine 502 can be brought into close contact as described above, so that leakage of compressed air therefrom can be prevented. Further, since the hammer 20 is fully cocked to press the nozzle 50 against the cartridge 520 arranged in the magazine 502, the tightness is not affected by the movement of pulling the trigger 700. Therefore, an operation of pulling the trigger 700 can be performed substantially in the same manner as a real gun.

[0022] Further, the hammer 20 has a connecting rod connection part 23, and literally the connecting rod connection part 23 is connected to the connecting rod 80, and the connecting rod 80 is connected to the piston cylinder device 550. Specifically, the connecting rod 80 is connected to a piston connection part 571 which is a part of the piston 570, and when the hammer 20 is pulled, the piston 570 is pushed down via the connecting rod 80 to accumulate the spring 580.

[0023] Further, the hammer 20 has a hammer rotation part 24 having a circular shape in plan view, and the engaging part 22 is arranged so as to protrude from the rotation part 24. Further, both the finger hook part 21 and the engaging part 22 are arranged so as to protrude from the rotation part 24. Therefore, in the uncocked state, the hammer part engaging receiving part 32, which will be described later, is arranged near the one - end engaging part 21a, and immediately before full cocking, the hammer part engaging receiving part 32 engages with the engaging part 22. Also, the rotation shaft part 25 is provided at the center of the hammer rotation part 24, and the rotation shaft part 25 is pivotally supported so as to be rotatable when a cocking operation is performed on the hammer 20.

[0024] Further, the hammer 20 has a first trigger engaging portion 28 that engages with the trigger 700. The first trigger engaging portion 28 has a stepped shape with a missing hammer rotating portion 24 that is substantially circular in plan view. Also, the hammer 20 has a second trigger engaging portion 29 that engages with the trigger 700. The second trigger engaging portion 29 has a stepped shape with a missing part of the hammer rotating portion 24 that is substantially circular in plan view. Both the first trigger engaging portion 28 and the second trigger engaging portion 29 are provided as part of the hammer rotating portion 24.

[0025] The hammer part 30 has a hammer part rotating portion 31 that is circular in shape and a hammer part engaging receiving portion 32 that protrudes from the hammer part rotating portion 31. The center of the hammer part rotating portion 31 is coaxially and rotatably supported by the center of the hammer rotating portion 24 and the rotating shaft portion 25.

[0026] The hammer part engaging receiving portion 32 literally engages with the above-described engaging portion 22. When the hammer 20 is cocked, the hammer rotating portion 24 rotates, and the engaging portion 22 rotates. When the engaging portion 22 engages with the hammer part engaging receiving portion 32, the hammer part engaging receiving portion 32 also rotates.

[0027] Also, the nozzle cam 40 has one end portion 41, the other end portion 42, and a rotating portion 43 therebetween. The rotating portion 43 is rotatably supported by a shaft portion 600 attached to the air gun 500, and the one end portion 41 and the other end portion 42 are pivotally supported so as to be swingable like a seesaw. Also, the one end portion 41 presses the other end portion 42 in the direction of the muzzle 530 (forward F direction) by engaging with the hammer part engaging receiving portion 32.

[0028] Also, one end portion 41 of the nozzle cam 40 is biased by a nozzle cam spring 45 to rotate in the rearward R direction. As a result, the other end portion 42 connected to the nozzle 50 is biased to be separated from the cartridge 520 disposed in the magazine portion 502 of the nozzle 50.

[0029] One end portion 41 of the nozzle cam 40 is arranged to engage with one end engaging portion 21a disposed near the root of the finger-hooking portion 21 of the hammer 20. In this way, by engaging with the one end portion 41 of the nozzle cam 40, the one end engaging portion 21a presses the nozzle cam 40 slightly forward in the F direction to counteract the pressing force of the nozzle cam spring 45.

[0030] Also, as described above, the nozzle 50 is connected to the hollow hose portion 60. The hose portion 60 is connected to the cylinder 560 and is for sending the compressed air generated by the piston cylinder device 550 to the nozzle 50. The hose portion 60 is preferably made of a flexible synthetic resin.

[0031] Further, even if the hose portion 60 is made of a flexible synthetic resin, it may have a certain degree of rigidity to prevent the hose portion 60 from being crushed. For this purpose, it has a hose pressing portion 70 for pressing to so-called buckle the hose portion 60. The hose pressing portion 70 has a hose roller portion 71 that contacts the hose portion 60 and a hose spring 72 that presses the hose roller portion 71 from the rear R direction to the front F direction. The hose spring 72 is preferably a so-called torsion spring. Therefore, since the hose pressing portion 70 pushes out the hose portion 60 in the front F direction, it is arranged in the rear R direction of the hose portion 60. Also, in this embodiment, the position where the hose pressing portion 70 presses the hose portion 60 is preferably arranged at an intermediate point between the cylinder device 550 and the nozzle 50. This is because, at that position, when applying a pressing force that causes the hose portion 60 to bend, the force becomes relatively small.

[0032] In FIGS. 5 to 10, a state in which a user (not shown) pulls the hammer 20 is described. Here, FIGS. 5 and 6 show the state before pulling the hammer, FIGS. 7 and 8 show the half-cocked state, and FIGS. 9 and 10 show the fully-cocked state. A user (not shown) starts to pull the hammer 20 in the air gun 500 with the above configuration. Before the user (not shown) pulls the hammer 20, the nozzle 50 is pressed against the cartridge 520 disposed in the magazine 502 by the pressing device 10. However, when the user (not shown) starts to pull the hammer 20, the engagement between the one-end engaging portion 21a and the one-end portion 41 is released, the nozzle cam 40 rotates in the rearward R direction, the other-end portion 42 of the nozzle cam 40 rotates and moves slightly in the rearward R direction. As a result, the nozzle 50 connected to the other-end portion 42 moves in the rearward R direction, and a gap is generated between the nozzle 50 and the cartridge 520 disposed in the magazine 502. This may be referred to as half-cocking. In this case, the rotation of the magazine 502 in the air gun 500 of the present embodiment is fixed. However, it is not limited thereto, and there may be a specification that allows the rotation of the magazine 502.

[0033] Also, a user (not shown) starts to pull the hammer 20 in the air gun 500 with the above configuration and half-cocks it. As a result, the nozzle 50 starts to move slightly in the rearward R direction, and the hose pressing portion 70 presses the hose portion 60 connected to the nozzle 50 in an attempt to further bend the hose portion 60.

[0034] As described above, when the nozzle 50 starts to move in the rearward R direction by half-cocking, the hose portion 60 may inhibit the movement because it has elasticity. In this case, the hose roller portion 71 in the hose pressing portion 70 is pressed from the rearward R direction to the forward F direction by the hose spring 72, so as to act to bend the hose portion 60 from the rearward R direction to the forward F direction against the elastic force of the hose portion 60, and it counteracts the elastic force. Thus, even if there is a hose portion 60 that does not exist in a real gun, the hose pressing portion 70 acts to cancel the elastic force against the force attempting to bend the hose portion.

[0035] To maintain this half-cocked state, the trigger 700 engages with the first trigger engaging portion 28 on the hammer 20. At this time, the connecting rod 80 connected to the hammer 20 presses down the piston 570 and accumulates the spring 580.

[0036] Next, a user (not shown) further pulls the hammer 20. As a result, the hammer rotating portion 24 rotates, and the engaging portion 22 rotates in the rearward R direction. When the engaging portion 22 engages with the hammer part engaging receiver 32, the hammer part engaging receiver 32 also rotates in the rearward R direction.

[0037] Due to the rotation of the hammer part engaging receiver 32, the hammer part engaging receiver 32 engages with one end portion 41 of the nozzle cam 40. As a result, the one end portion 41 rotates around the shaft portion 600 attached to the air gun 500, and the other end portion 42 moves in the forward F direction. Since the other end portion 42 is connected to the nozzle 50, the nozzle 50 is pressed against the cartridge 520 disposed in the magazine 502, and the nozzle 50 is in close contact with the cartridge 520 disposed in the magazine 502. In this way, the nozzle cam 40 presses the nozzle 50. At this time, the connecting rod 80 connected to the hammer 20 further presses down the piston 570 and accumulates the spring 580. In this case, the piston 570 is completely accumulated by the compressed spring 580 and presents a so-called full bottom state. This state may be referred to as full cocking.

[0038] In this full-cocked state, the rotation of the magazine 502 in the air gun 500 of the present embodiment is fixed. Also, to maintain this full-cocked state, the trigger 700 disengages from the first trigger engaging portion 28 on the hammer 20 and engages with the second trigger engaging portion 29.

[0039] Next, in this fully cocked state, when a user (not shown) pulls the trigger 700, the engagement between the trigger 700 and the second trigger engagement portion 29 on the hammer 20 is released. At this time, as the compressed spring 580 returns to its natural length, the piston 570 is pushed up to generate compressed air. The generated compressed air is supplied to the nozzle 50 through the hose portion 60, and the compressed air is injected into the cartridge 520 disposed in the magazine 502 to fire the bullet B.

[0040] At this time, since the operation of pulling the trigger 700 only releases the engagement between the trigger 700 and the second trigger engagement portion 29 on the hammer 20, no extra force is applied, and the operation of pulling the trigger 700, which is the same as that of a real gun without any color, can be realized. Thereby, it is possible to reduce as much as possible the risk that the aiming once determined will be displaced and the hitting accuracy will be reduced.

Explanation of Reference Numerals

[0041] 10 Pressing device 20 Hammer 22 Engagement portion 23 Connecting rod connection portion 24 Hammer rotation portion 30 Hammer parts 40 Nozzle cam 41 One end portion 42 The other end portion 43 Rotation portion 50 Nozzle 51 Nozzle packing 60 Hose portion 80 Connecting rod 500 Air gun 501 Barrel 502 Magazine 520 Cartridge 530 Muzzle 550 Piston cylinder device 560 Cylinder 570 Piston 580 Spring 650 Inner frame 700 trigger B bullet

Claims

1. A pressing device that presses a nozzle for injecting the generated compressed air by fully cocking a hammer having a hammer rotating part for generating compressed air; The pressing device has a hammer part that engages with the hammer; And a nozzle cam that rotates by engaging with the hammer part; The hammer part has a hammer part rotating part having a circular shape and a shaft part; The central part of the hammer rotating part and the central part of the hammer part rotating part are coaxially and rotatably supported by the shaft part; When the hammer is fully cocked, the hammer part rotates by engaging with the hammer, the nozzle cam that engages with the hammer part rotates, and when the nozzle cam is disposed in a cartridge chamber of an air gun capable of using a cartridge, the nozzle cam is a pressing device that presses the nozzle against the cartridge.

2. A pressing device that presses a nozzle for injecting the generated compressed air by fully cocking a hammer for generating compressed air; A cartridge chamber that holds bullets; A cartridge disposed in the cartridge chamber; The hammer has a hammer rotating part; The pressing device has a hammer part that engages with the hammer; And a nozzle cam that rotates by engaging with the hammer part; The hammer part has a hammer part rotating part having a circular shape and a shaft part; The central part of the hammer rotating part and the central part of the hammer part rotating part are coaxially and rotatably supported by the shaft part; When the hammer is fully cocked, the hammer part rotates by engaging with the hammer, the nozzle cam that engages with the hammer part rotates, and the nozzle cam is an air gun that presses the nozzle against the cartridge.

Images