WO2014192090A1 - 砲口制退器及び銃火器 - Google Patents
砲口制退器及び銃火器 Download PDFInfo
- Publication number
- WO2014192090A1 WO2014192090A1 PCT/JP2013/064850 JP2013064850W WO2014192090A1 WO 2014192090 A1 WO2014192090 A1 WO 2014192090A1 JP 2013064850 W JP2013064850 W JP 2013064850W WO 2014192090 A1 WO2014192090 A1 WO 2014192090A1
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- WIPO (PCT)
- Prior art keywords
- hole
- gas
- wall
- barrel
- wall portion
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/32—Muzzle attachments or glands
- F41A21/36—Muzzle attachments or glands for recoil reduction ; Stabilisators; Compensators, e.g. for muzzle climb prevention
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/30—Silencers
Definitions
- the present invention relates to a muzzle retractor and a firearm. Specifically, the present invention relates to a muzzle control / retractor and a firearm that can efficiently reduce the influence of gas at the time of launch.
- Guns such as guns and cannons fire bullets from the barrel with the pressure of the gunpowder combustion gas.
- the powerful gas pressure inside the barrel creates a force that fires the bullet and a reaction force that acts as a reaction to the shooter and a rear seat of the gun.
- the reaction caused by the gas works in the direction of raising the grip of the gun upward, and as a result, it leads to a phenomenon called muzzle jump in which the muzzle faces upward.
- the reaction of gas can lead to physical pain and injury, such as the gun retreating and hitting the shooter's shoulder. It also reduces the accuracy of the hit.
- the firing position of the next bullet may be affected.
- a muzzle control device is attached to the tip of the gun or gun to reduce the recoil caused by the gas at the time of launch.
- the muzzle control / retractor has a cylindrical shape or a box shape, and reduces the reaction by releasing gas to the atmosphere from a hole provided on a side surface. Retirement has been proposed.
- Patent Document 1 describes a muzzle retractor 100 as shown in FIG.
- the muzzle retractor 100 includes a first retractor main body 101 and a second retractor main body 102 formed in a cylindrical shape.
- a plurality of through-holes 103 are formed in the peripheral surfaces of the first retractor main body 101 and the second retractor main body 102.
- the muzzle retractor 100 can be attached to the barrel.
- the muzzle control device 100 is a barrel device, but the basic structure in which the through hole is formed is the same as the muzzle control device that can be attached to the gun.
- extinguishers that suppress the firing flame and silencers that suppress the firing sound, which have a structure similar to that of the muzzle damper. These are attached to the tip of the barrel like a muzzle control device, and function by providing a space in the through hole or inside.
- Patent Document 1 reduces reaction by diffusing gas from the hole to the atmosphere.
- a part of the gas diffused from the muzzle generates a pressure to push the barrel backward, and the effect of suppressing the recoil cannot be obtained sufficiently.
- the gas diffused from the through-hole may be reflected by the building wall or the ground, and the barrel may be shaken by the influence. Due to the shake of the barrel, the muzzle position becomes unstable and the accuracy of hitting is reduced.
- the sound is likely to spread around, and the sound is loud.
- the firing sound becomes loud, not only is the shooter exposed to a loud sound, but the inconvenience that the position of the shooter is known arises.
- the silencer induces gas from the barrel, stores the gas in a plurality of air chambers that divide the inside of the main body, and diffuses the gas after reducing the pressure.
- the inner member such as the partition plate is significantly consumed by the gas pressure, and the partition plate must be frequently replaced.
- the present invention has been made in view of the above points, and an object thereof is to provide a muzzle retractor and a firearm that can efficiently reduce the influence of gas at the time of launch.
- the muzzle retractor of the present invention has a substantially cylindrical shape in which a first hole portion is formed, and a muzzle of a barrel inserted therein is used as the first hole.
- An inner wall portion that can be fixed by being positioned in the vicinity of the inner wall portion, an outer wall portion that substantially surrounds the inner wall portion, and a position where the barrel is inserted from a position where the first hole portion is formed.
- a first closing portion that closes a gap between a portion and the outer wall portion, and the first closing portion is disposed on a side opposite to the position where the first hole portion is formed, and the inner wall portion and the A second closing portion that closes the gap with the outer wall portion, and a substantially cylindrical shape, and a region between the first hole portion and the first closing portion is in contact with the inner wall portion and the outer wall portion.
- the muzzle control device it is possible to attach the muzzle control device to the barrel by the inner wall portion that is substantially cylindrical and can fix the barrel inserted inside.
- the first hole is formed, and the gas generated at the time of firing is generated by the inner wall that can be fixed by positioning the muzzle of the barrel inserted in the first hole in the vicinity of the first hole. It becomes easy to flow to the part, and gas can be guided from the muzzle and the inner wall part side to the first hole part side.
- the outer wall portion that substantially surrounds the inner wall portion can surround the barrel and the inner wall portion, and a space can be formed between the inner wall portion and the inner wall portion. That is, the gas at the time of launch can be induced, and the gas can be temporarily stopped in this space.
- the second closed portion receives the pressure of the gas diffused outside and the pressure of the firing gas induced from the first hole, and cancels and reduces the reaction caused by the gas diffused outside. be able to.
- the inner wall portion and the outer wall portion are arranged by the second closing portion which is disposed on the opposite side of the first closing portion from the position where the first hole portion is formed and closes the gap between the inner wall portion and the outer wall portion. It is possible to close the opposite side to the side where the barrel of the space formed between them is inserted, and to keep the gas in the space. That is, the gas can be kept in the space without diffusing to the outside, and the pressure can be gradually lowered.
- the region between the first hole and the first closed part is directed from the first hole toward the first closed part by the piston in contact with the inner wall part and the outer wall part. Can catch the diffused gas. That is, it is possible to receive the pressure due to the excess gas that does not enter the space on the second closing portion side and reduce the reaction.
- the piston is pushed by the gas pressure by a piston that is substantially cylindrical and that can move in a state where the region between the first hole and the first closing portion is in contact with the inner wall and the outer wall.
- the volume of the space for moving and holding the gas can be increased. That is, a larger amount of gas can be retained in the muzzle control / retractor, and the reaction caused by the gas can be reduced.
- the position of the barrel can be stabilized by a piston that has a substantially cylindrical shape and is movable in a state where the region between the first hole and the first blocking portion is in contact with the inner wall portion and the outer wall portion. it can.
- the piston pushed by the gas pressure moves in a direction substantially parallel to the barrel, thereby reducing the barrel shake due to the reaction and maintaining the barrel position.
- the piston and the first closing part are arranged between the piston and the first closing part, and can move in the region between the first hole part and the first closing part, and a larger pressure is applied by the elastic piston receiving member. It can be received with a piston. That is, the piston pushed by the gas can be contracted and received or pushed back.
- the piston and the piston receiving member are disposed between the piston and the first closing portion, and the piston and the piston receiving member are adjusted to gas pressure by the piston receiving member that is movable in the region between the first hole and the first closing portion. It can be pushed and moved to expand the volume of the space that holds the gas. That is, a larger amount of gas can be retained in the muzzle control / retractor, and the reaction caused by the gas can be reduced.
- the piston receiver is moved by the gas pressure by the first closing portion which is arranged on the side where the barrel is inserted from the position where the first hole portion is formed and closes the gap between the inner wall portion and the outer wall portion.
- the member can be stopped. That is, the piston receiving member pushed by the gas pressure can be expanded and contracted.
- the piston when the piston is formed to be rotatable and its center of gravity is biased, the position of the center of gravity of the piston is always kept vertically downward even if the direction of the barrel in the circumferential direction changes. Can do. That is, even when the gun is tilted and fired, it is possible to sufficiently reduce the upward jump of the barrel due to the gas reaction.
- the piston when the projection is located between the first hole and the piston and protrudes from the inner wall to the outer wall, the piston is closer to the second closing part than the first hole. You can stop moving. In other words, the gas hits the piston closer to the first closing portion than the first hole, and the piston can be reliably moved to the barrel side.
- the 1st opening part which can be opened and closed is provided in the 1st obstruction
- the second hole is formed on the outer peripheral surface of the outer wall portion and at least a part of the region where the piston can move, a part of the gas that pushes the piston toward the first closing portion side. It can guide to the 2nd hole side from the space between an inner wall part and an outer wall part. That is, surplus gas can be further diffused to the second hole side.
- a third closing portion is provided that is disposed closer to the barrel than the position where the second hole is formed and closes the gap between the outer wall portion and the guide outer wall portion. That is, the gas can be kept in the space without diffusing to the outside, and the pressure can be gradually lowered.
- a fourth blocking portion disposed on the opposite side of the third blocking portion from the position where the second hole portion is formed and blocking the gap between the outer wall portion and the guiding outer wall portion;
- the gas can be discharged to the outside from the third hole while guiding the gas into the space formed between the outer wall part and the guide outer wall part. . That is, it is possible to finally diffuse outside while lowering the gas pressure.
- the gas is passed through the fourth hole part to arrange the partition part. Gas can be induced into the created space. That is, it takes time to move the gas so that the gas is easily cooled and the pressure of the gas can be further reduced.
- the gas cooling effect is further increased. Can be increased. That is, when the position of the fourth hole through which the gas passes is different, the gas moves to the position of the fourth hole of each partition, and the movement can take time.
- the space formed between the outer wall part and the guidance outer wall part is opened from the third obstruction part side. It becomes possible. That is, when the partition member disposed inside the space is consumed, it can be easily replaced.
- the muzzle control / retractor includes a first hole and a second hole positioned at a predetermined distance from the first hole. And an inner wall part that can be fixed by positioning a muzzle of a barrel inserted in the vicinity of the second hole part, an outer wall part that substantially surrounds the inner wall part, A first closing portion disposed on a side opposite to a side where the barrel is inserted from a position where the one hole portion is formed, and closing a gap between the inner wall portion and the outer wall portion; and the second hole A second closing portion that is disposed on the side where the barrel is inserted from the position where the portion is formed, closes a gap between the inner wall portion and the outer wall portion, an outer peripheral surface of the inner wall portion, and the first And a protrusion projecting from the inner wall portion to the outer wall portion side.
- the second hole portion is formed, and the gas generated at the time of firing is generated by the inner wall portion that can be fixed by positioning the muzzle of the barrel inserted in the second hole portion in the vicinity of the second hole portion. It becomes easy to flow to the part, and the gas can be guided from the muzzle and the inner wall side to the second hole side.
- the outer wall portion that substantially surrounds the inner wall portion can surround the barrel and the inner wall portion, and a space can be formed between the inner wall portion and the inner wall portion. That is, the gas at the time of launch can be induced, and the gas can be temporarily stopped in this space.
- the second hole portion includes an inner wall portion in which a first hole portion and a second hole portion located at a predetermined interval from the first hole portion are formed, and an outer wall portion that substantially surrounds the inner wall portion.
- the gas guided to the space between the inner wall portion and the outer wall portion from the first hole portion can be again guided to the space inside the inner wall portion. That is, the gas diffused without entering the first hole is blown against the gas diffused without entering the first hole so that the gas diffused without entering the first hole It becomes possible to weaken the momentum.
- the outer wall of the inner wall portion is adjacent to the second hole portion side of the first hole portion, and the protrusion portion projecting from the inner wall portion to the outer wall portion side near the first hole portion.
- the volume of the space between the inner wall portion and the outer wall portion can be reduced. That is, compared with the gas flow near the second hole, the velocity of the gas flow near the first hole is increased, and the gas diffuses without entering the first hole. it can.
- the firearm of the present invention has a barrel in which a barrel hole is formed in a region near the muzzle, and a substantially cylindrical shape capable of fixing the barrel inside.
- An inner wall portion in which a first hole portion is formed in a region corresponding to the barrel hole portion, and a side which substantially surrounds the inner wall portion and into which the barrel is inserted from a position where the first hole portion is formed.
- an outer wall portion in which the second hole portion is formed and a position where the barrel is inserted from a position where the first hole portion is formed, and closes a gap between the inner wall portion and the outer wall portion.
- a second closing portion is disposed on the opposite side of the first closing portion from the position where the first hole portion is formed, and closes a gap between the inner wall portion and the outer wall portion.
- the side where the barrel is inserted from the position where the closed portion, the guide outer wall portion that substantially surrounds the outer wall portion, and the second hole portion are formed
- a third blocking portion that is disposed and closes a gap between the outer wall portion and the guide outer wall portion, and is disposed on the opposite side of the third blocking portion from the position where the second hole portion is formed.
- a fourth closing portion that closes a gap between the outer wall portion and the guiding outer wall portion, a third hole provided in the fourth closing portion, and a gap between the outer wall portion and the guiding outer wall portion.
- a muzzle control / retractor having a partition part in which a fourth hole is formed at least in part.
- the gas at the time of launch can be diffused from the barrel hole to the outside.
- the muzzle control device on the barrel by the inner wall portion having a substantially cylindrical shape capable of fixing the barrel inside.
- the gas diffused through the barrel hole can be guided through the first hole by the inner wall portion in which the first hole is formed in the region corresponding to the barrel hole.
- a space is formed between the inner wall portion by the outer wall portion that substantially surrounds the inner wall portion and has the second hole portion formed on the side where the barrel is inserted from the position where the first hole portion is formed.
- the gas that has passed through the first hole can be guided to the second hole. That is, the gas can be cooled while being guided into the space, and the pressure of the gas can be gradually reduced.
- the barrel, the inner wall portion, and the outer wall portion can be surrounded by the guiding outer wall portion that substantially surrounds the outer wall portion, and a space can be formed between the outer wall portion. That is, the gas at the time of launch can be further guided to temporarily keep the gas in this space.
- a fourth blocking portion disposed on the opposite side of the third blocking portion from the position where the second hole portion is formed and blocking the gap between the outer wall portion and the guiding outer wall portion;
- the gap between the outer wall portion and the guide outer wall portion is closed, and at least part of the partition portion formed with the fourth hole portion allows gas to pass through the fourth hole portion to the space where the partition portion is disposed.
- Gas can be induced. That is, it takes time to move the gas so that the gas is easily cooled and the pressure of the gas can be further reduced.
- the muzzle retractor according to the present invention can efficiently reduce the influence of gas at the time of launch. Moreover, the firearm according to the present invention can efficiently reduce the influence of gas at the time of launch.
- FIG. 1 is a schematic perspective view showing an example of the first embodiment of the present invention.
- a muzzle brake 1 which is an example of a muzzle retractor to which the present invention is applied includes an inner cylinder portion 2, an outer cylinder portion 3, and a lid portion 4.
- the tip of the barrel 5 is fixed inside the inner tube portion 2.
- the inside of the inner cylinder portion 2 has a shape in which a space is formed on an extension line of the muzzle 6.
- a plurality of first gas guide holes 7 are formed in the vicinity of the muzzle 6. The gas at the time of firing passes through the first gas guide hole 7 from the muzzle 6 and is guided to the space between the inner cylinder part 3 and the outer cylinder part 4.
- the outer cylinder part 3 covers the inner cylinder part 2 and forms a space between the inner cylinder part 2. Further, an opening is formed on the barrel 5 side of the inner tube portion 2 and the outer tube portion 3, and a closing portion 11 is formed on the bullet firing direction side. Further, the opening on the barrel 5 side is closed by the lid portion 4 so that it can be opened and closed. Further, the lid 4 has a structure (not shown) that can be fixed to the barrel 5 with screws.
- a substantially cylindrical piston 8 is arranged on the barrel 5 side from the first gas guide hole 7 so as to be movable in the longitudinal direction of the inner cylinder part 2.
- the piston 8 is a member that contacts the inner cylinder part 2 and the outer cylinder part 3 and moves by receiving the pressure of the gas.
- the piston 8 is formed to be rotatable about the inner cylinder portion 2 in contact with the inner periphery. Further, the piston 8 has a built-in weight in a part of the region, and the position of the center of gravity is formed to be biased.
- a spring 9 is disposed adjacent to the piston 8.
- the spring 9 is a member that supports the piston 8 that is pushed by the gas pressure and moves to the barrel 5 side. Further, the piston 8 and the spring 9 are not fixed, and each can move between the first gas guide hole 7 and the lid portion 4. In addition, at both ends of the spring 9, spring trays (not shown) with bearings are arranged.
- a substantially cylindrical stopper 10 is formed in the inner cylinder portion 2 adjacent to the barrel 5 side of the first gas guide hole 7. The stopper 10 suppresses the movement of the piston 8 toward the first gas guide hole 7.
- the number and shape of the first gas guide holes 7 are not particularly limited as long as it is possible to guide the gas at the time of firing into the space between the inner cylinder part 2 and the outer cylinder part 3. It is not something.
- a structure in which a plurality of hole portions are provided on the circumferential surface of the inner cylinder portion 2, a structure in which slit-like openings are provided, or the like can also be employed.
- the lid 4 is not always necessary that the lid 4 be fixed to the barrel 5 with screws.
- the lid 4 is preferably structured to be fixed to the barrel 5 by screwing.
- the size and weight of the piston 8 are not particularly limited as long as the piston 8 can receive the gas pressure. Depending on the type of gun to be installed and the type of bullet, it is possible to select an appropriate size and weight.
- the piston 8 is rotatable and the position of the center of gravity is biased.
- the piston 8 is formed to be rotatable and the position of the center of gravity is biased from the viewpoint that the upward jump of the barrel 5 can be reduced.
- the piston 8 does not necessarily need to have a built-in weight in a part of the area.
- a structure for biasing the position of the center of gravity a structure in which a partial area of the piston is formed hollow can be employed.
- the spring 9 can support the piston 8 that is pressed by the gas pressure, and the shape and the strength of the elastic force are not particularly limited. Depending on the type of gun to be mounted and the type of bullet, one having an appropriate shape and strength of elasticity can be selected.
- the moving distance of the piston 8 and the spring 9 can be adjusted by changing the weight of the piston 8 and the strength of the elastic force of the spring 9.
- the volume of the space formed by the inner wall portion 2 and the outer wall portion 3 can be changed.
- the muzzle brake 1 can be a device that can handle various types of guns and bullets.
- the piston 8 and the spring 9 be fixed, and it is sufficient if the pressure of the gas can be received.
- the structure which connects the piston 8 and the spring 9 and fixes the edge part on the opposite side to the piston 8 of the spring 9 to the inner cylinder part 2 is also considered.
- the stopper 10 is not necessarily formed on the inner cylinder portion 2.
- the stopper 10 is formed in the inner cylinder portion 2 from the viewpoint that the movement of the piston 8 toward the first gas guide hole 7 is suppressed and the pressure of the gas coming from the first gas guide hole 7 is easily received. Is preferred.
- spring tray with bearings it is not always necessary to arrange a spring tray with bearings at both ends of the spring 9.
- spring receivers with bearings are disposed at both ends of the spring 9.
- the stopper 10 can suppress the movement of the piston 8 toward the first gas guiding hole 7, and the shape thereof is not particularly limited.
- the structure formed partially on the circumference of the inner cylinder part 2 may be sufficient.
- a bullet is fired from the muzzle 6, and a part of the fired gas diffuses to the outside from the opening of the inner cylinder portion 2 on the extension line of the muzzle 6.
- the pressure due to the gas diffused outside acts as a reaction to push the muzzle brake 1 and the barrel 5 backward on the shooter side.
- the gas that has not been diffused to the outside flows through the first gas guide hole 7 and flows into the space between the inner cylinder part 2 and the outer cylinder part 3.
- This gas remains in the space for a certain period of time, and as the time passes, the volume contracts and the pressure gradually decreases. As the pressure drops, the reaction of the gas weakens.
- a part of the gas that has passed through the first gas guide hole 7 is received by the blocking portion 11 and exerts a pressure in the firing direction. This pressure acts as a force for pushing the muzzle brake 1 and the barrel 5 in the firing direction.
- the gas diffused outside and the pressure of the gas passing through the first gas guide hole 7 act oppositely with the closed portion 11 as a boundary, and the reaction caused by the gas diffused outside can be reduced. It has become a thing.
- the piston 8 moves in a direction substantially parallel to the barrel 5 to reduce the barrel shake due to the reaction of the gas and keep the barrel position. Further, the spring 9 is contracted, so that the volume of the space is increased, and surplus gas can be retained in the space.
- the gas diffused to the outside and the gas remaining inside the barrel cause a recoil in the vertical direction that jumps up the muzzle brake 1 and the barrel 5 upward.
- the piston 9 is freely rotatable and the center of gravity is formed to be biased, the center of gravity of the piston is always positioned vertically downward, and it is possible to effectively suppress the vertical reaction caused by the gas.
- the gas induced in the muzzle brake 1 is used to push the pressure forward of the barrel 5 and to move the piston 8. Further, the gas is cooled by being kept in the space for a certain period of time, and then gradually decreases in pressure. Finally, the gas is gradually diffused to the outside from the opening of the inner cylinder portion 2 on the extension line of the muzzle 6.
- the reaction caused by the pressure of the gas diffused outside is canceled and the reaction reaching the barrel 5 is performed. Can be reduced.
- the gas can be kept inside the muzzle brake 1 for a certain period of time, and the gas pressure can be reduced with the passage of time.
- the movement of the piston 8 can reduce the reaction that acts backward due to the gas pressure.
- the recoil in the vertical direction can be reduced by the structure in which the piston is rotatable and the position of the center of gravity is biased.
- the position of the barrel 5 can be stabilized by moving the piston 8.
- the gas to be emitted is not diffused from other than the opening of the inner cylinder portion 2, gas reflection is unlikely to occur on the surrounding terrain such as a wall or the ground, and the barrel 5 can be less shaken. In addition, it is possible to reduce the emission sound.
- the fire flame is not diffused from other than the opening of the inner cylinder portion 2 like the fire gas, it is possible to make it difficult for the surrounding human being to be damaged by the fire flame.
- the lid portion 4 has a structure that can be opened and closed, the piston 8 and the spring 9 can be easily replaced, and the maintainability of the apparatus can be improved.
- the piston has a sturdy structure that can withstand repeated movements, the exhaust gas is less consumed and the durability of the device can be improved.
- FIG. 2 is a schematic sectional view showing an example of the second embodiment of the present invention.
- FIG. 3 is the schematic (a) which shows the structure of a partition plate (1), and the schematic diagram (b) which shows the structure of a partition plate (2).
- a large-diameter muzzle brake 12 which is an example of a muzzle retractor to which the present invention is applied, includes an inner cylinder part 13, an outer cylinder part 14, a guide outer cylinder part 15, and a lid part 16. ing.
- a large-caliber barrel 17 is fixed inside the inner tube portion 13.
- the basic structure of the inner cylinder part 13 and the outer cylinder part 14, and the first gas guide hole 7, piston 8, spring 9, stopper 10, and closing part 11 are the same as those in the first embodiment, so that explanations are provided. Omitted.
- a second gas guide hole 18 is formed in a part on the outer peripheral surface of the outer cylinder portion 14.
- the second gas guide hole 18 is formed in the middle of the movement region of the piston 8 and in the vicinity of the position where the piston 8 is sufficiently pushed, passes through the space between the inner cylinder part 13 and the outer cylinder part 14, and passes through the piston 8. The gas that has been pushed through.
- the guide outer cylinder part 15 covers the outer cylinder part 14 and forms a space between the outer cylinder part 14. Further, an opening is formed on the barrel 5 side of the outer cylinder portion 14 and the guide outer cylinder portion 15, and a closing portion 19 is formed on the bullet firing direction side. The closing portion 19 is formed with a third gas guide hole 20 for diffusing gas to the outside.
- the opening on the barrel 17 side is closed by the lid portion 16 so that it can be opened and closed.
- the lid portion 16 has a structure 21 that can be fixed to the barrel 17 with screws.
- the large-diameter muzzle brake 12 is provided with a plurality of partition plates 22 that partition the space between the outer cylinder portion 14 and the guide outer cylinder portion 15.
- the partition plate 22 is provided with a fourth gas guide hole 23 through which gas passes.
- FIG. 3 two patterns of the positions of the fourth gas guide holes 23 in the partition plate 22 are formed. All of the drawings in FIG. 3 are views as seen from the surface side substantially perpendicular to the longitudinal direction of the guide outer cylinder portion 15.
- a plurality of fourth gas guide holes 23 are formed in the vicinity of the outer periphery of the partition plate 22.
- a plurality of fourth gas guide holes 23 are formed in the vicinity of the inner periphery of the partition plate 22.
- the large-diameter muzzle brake 12 has a structure in which these two types of partition plates 22 are alternately arranged as shown in FIG.
- the number and the shape of the second gas guide holes 18 of the outer cylinder part 14 are not limited as long as the gas is guided to the region on the barrel 17 side and the space between the outer cylinder part 14 and the guide outer cylinder part 15. It is sufficient and is not particularly limited. A structure in which a plurality of holes are provided on the outer peripheral surface of the outer cylinder part 14 or a structure in which a slit-like opening is provided can also be employed.
- the second gas guide hole 18 is not necessarily formed in the vicinity of the position where the piston 8 is sufficiently pushed. However, since the volume of the space between the inner cylinder part 13 and the outer cylinder part 14 can be fully utilized, the second gas guide hole 18 is formed in the vicinity of the position where the piston 8 is sufficiently pushed. It is preferable.
- the lid 16 does not necessarily have to be a structure 21 that can be fixed to the barrel 17 by screwing.
- the lid portion 16 has a structure 21 that can be fixed to the barrel 17 by screwing.
- the partition plate 22 is not necessarily arranged on the large-diameter muzzle brake 12. However, it is preferable that the partition plate 22 be disposed on the large-diameter muzzle brake 12 from the viewpoint that it takes time to move the induced gas, enhance the cooling effect, and reduce the sufficient pressure. .
- the large-diameter muzzle brake 12 is provided with the fourth gas induction hole 23. It is preferable that two types of partition plates having different positions are alternately arranged.
- the arrangement structure of the partition plate 22 is not particularly limited.
- a structure in which one piece is arranged a structure in which a plurality of partition plates 22 are connected by a bar member, and the like can be employed.
- the partition plates 22 can be exchanged together, and the maintenance of the apparatus can be facilitated.
- the gun that can be mounted on the large-diameter muzzle brake 12 is not particularly limited.
- the gas that has pushed the piston 8 through the first gas guide hole 7 out of the propelled gas passes through the second gas guide hole 18 of the outer cylinder part 14 and is formed in the guide outer cylinder part 15. Will flow into the created space. This gas remains in the space for a certain period of time, and as the time passes, the volume contracts and the pressure gradually decreases. As the pressure drops, the reaction of the gas weakens.
- the surplus gas that could not fit in the space formed in the guide outer cylinder portion 15 is directed toward the partition portion 22.
- the gas passes through the fourth gas guide hole 23 of the partition portion 22 and is guided into the space formed by the plurality of partition plates 22.
- the partition plate 22 differs in the partition plate 22 in which the formation position of the 4th gas induction hole 23 adjoins, and the induced gas moves toward the 4th gas induction hole 23 of each plate. . In this process, it is possible to take time to move the gas and enhance the cooling effect of the gas.
- the gas that has passed through the fourth gas guide hole 23 of the partition plate 22 is diffused to the outside from the third gas guide hole 20 formed in the closing portion 19. Further, the gas retained inside the large-diameter muzzle brake 12 is cooled and gradually decreases in pressure, and is slowly diffused to the outside from the opening of the inner cylinder portion 13 on the extension line of the muzzle 24.
- the reaction of the gas diffused outside is canceled out by using the pressure of the gas induced inside the large-diameter muzzle brake 12, and the barrel 17 Can be reduced.
- the movement of the piston 8 can reduce the reaction that acts backward due to the gas pressure.
- the recoil in the vertical direction can be reduced by the structure in which the piston is rotatable and the position of the center of gravity is biased.
- the position of the barrel 17 can be stabilized by moving the piston 8.
- the guide outer cylinder portion 15 by providing the guide outer cylinder portion 15, the amount of gas to be retained inside is increased, and the device can be used for a large-aperture gun. Further, by providing the partition plate, the gas cooling effect can be enhanced and the reaction can be reduced.
- FIG. 4 is a schematic cross-sectional view showing an example of the third embodiment of the present invention.
- a simple muzzle brake 25 which is an example of a muzzle control device to which the present invention is applied, includes an inner cylinder part 26 and an outer cylinder part 27.
- a barrel 28 is fixed inside the inner tube portion 26.
- a first gas guide hole 29 is formed on the projecting direction side of the bullet of the inner cylinder portion 26.
- a second gas guide hole 31 is formed in the vicinity of the muzzle 30 of the inner cylinder portion 26.
- the total cross-sectional area on the circumferential surface of the inner cylinder portion 26 of the first gas induction hole 29 is smaller than the total cross-sectional area on the circumferential surface of the inner cylinder portion 26 of the second gas induction hole 31. It is formed as follows.
- a projection 32 is formed in the inner cylinder portion 26 adjacent to the barrel 28 side of the first gas guide hole 29. Since the protrusion 32 is formed, the space between the inner cylinder part 26 and the outer cylinder part 27 is partially reduced in volume. Thereby, the velocity of the gas flow of the induced gas can be increased, and the pressure of the gas flowing from the first gas induction hole 29 toward the inner cylinder portion 26 can be increased.
- the outer cylinder part 27 covers the inner cylinder part 26 and forms a space between the inner cylinder part 26. Further, on the barrel 5 side of the inner cylinder part 26 and the outer cylinder part 27, a closed part 34 having an inclined surface 33 is formed in the vicinity of the second gas guide hole 31. Further, a closing portion 36 having a curved surface 35 is formed on the firing direction side of the inner tube portion 26 and the outer tube portion 27.
- the area between the inner cylinder part 26 and the outer cylinder part 27 and on the barrel 28 side from the closing part 34 is a solid area.
- the number and shape of the first gas guide holes 29 are sufficient if the gas can be guided from the space between the inner cylinder part 26 and the outer cylinder part 27 to the space inside the inner cylinder part 26.
- a structure in which a plurality of holes are provided on the circumferential surface of the inner cylinder part 26, a structure in which slit-like openings are provided, or the like can also be employed.
- the number and shape of the second gas guide holes 31 are not particularly limited as long as the gas can be guided to the space between the inner cylinder part 26 and the outer cylinder part 27.
- a structure in which a plurality of holes are provided on the circumferential surface of the inner cylinder part 26, a structure in which slit-like openings are provided, or the like can also be employed.
- the total cross-sectional area on the circumferential surface of the inner cylinder portion 26 of the first gas induction hole 29 is not necessarily larger than the total cross-sectional area on the circumferential surface of the inner cylinder portion 26 of the second gas induction hole 31. It does not need to be formed to be small. However, the first gas guide hole can be more effectively reduced by increasing the speed of the gas passing through the first gas guide hole and reducing the reaction caused by the gas diffused from the muzzle 30 to the outside more effectively. It is preferable that the total cross-sectional area on the circumferential surface of the inner cylindrical portion 26 of 29 is smaller than the total cross-sectional area on the circumferential surface of the inner cylindrical portion 26 of the second gas guide hole 31. .
- the closing part 34 does not necessarily have the inclined surface 33.
- the blocking portion 34 forms the inclined surface 33. It is preferable to have.
- the closing part 36 does not necessarily have the curved surface 35.
- the closed portion 36 has a curved surface 35 in order to facilitate the flow of the flowing gas toward the first gas guide hole 29 and to easily reduce the momentum of the gas diffused from the muzzle 30 to the outside. Is preferred.
- a bullet is fired from the muzzle 30, and a part of the fired gas diffuses to the outside from the opening of the inner cylinder part 26 on the extension line of the muzzle 30.
- the pressure caused by the gas diffused outside acts as a reaction to push the simple muzzle brake 25 and the barrel 28 backward on the shooter side.
- a part of the gas that has not diffused to the outside passes through the second gas guide hole 31 and flows into the space between the inner cylinder part 26 and the outer cylinder part 28.
- the gas flows along the inclined surface 33 of the closing portion 34 and moves to the firing direction side.
- the gas that has passed through the second gas guide hole 31 is increased in the velocity of the airflow at the position of the protrusion 32 and reaches the position of the blocking portion 36.
- the gas is received by the blocking portion 36 and exerts a pressure in the firing direction. This pressure acts as a force for pushing the simple muzzle brake 25 and the barrel 28 in the firing direction.
- the gas that has reached the position of the blocking portion 36 flows along the curved surface 35 and passes through the first gas guide hole 29.
- the gas that has passed through the first gas guide hole 29 collides with the gas that is about to be diffused outside from the muzzle 30 without passing through the first gas guide hole 29, so that the momentum can be weakened and the reaction can be reduced.
- the gas diffused to the outside is diffused to the outside through the opening of the inner cylinder portion 26 on the extension line of the muzzle 30 after the momentum is weakened.
- the recoil exerted on the barrel by the gas can be reduced by hitting the gas diffused to the outside using the flow of the gas flow. .
- the simple muzzle brake 25 has a simple structure, so it is not easily broken and is easy to install and remove.
- FIG. 5 is a schematic sectional view showing an example of the fourth embodiment of the present invention.
- a gun 37 that is an example of a firearm to which the present invention is applied includes a barrel 38 and a muzzle brake 39.
- a plurality of barrel holes 41 are formed in the vicinity of the muzzle 40 in the barrel 38.
- the muzzle brake 39 includes an inner cylinder part 42, an outer cylinder part 43, and a guide outer cylinder part 44.
- the barrel 38 is inserted inside the inner cylinder portion 42 and fixed to the barrel 38 with a screw fixing portion 45.
- a plurality of first gas guide holes 53 are formed at positions corresponding to the barrel hole portion 41 of the inner cylinder portion 42.
- the outer cylinder part 43 covers the inner cylinder part 42 and forms a space between the inner cylinder part 42. Further, a closing portion 46 is formed on the projecting direction side of the bullets of the inner cylinder portion 42 and the outer cylinder portion 43. A second gas guide hole 47 is formed on the outer peripheral surface of the outer cylinder portion 43 and on the barrel 38 side.
- the guide outer cylinder part 44 covers the outer cylinder part 43 and forms a space between the outer cylinder part 43.
- a closing portion 48 is formed on the projecting direction side of the bullets of the outer cylinder portion 43 and the guide outer cylinder portion 44.
- the closing portion 48 is formed with a third gas guide hole 49 for diffusing gas to the outside.
- a closed portion 50 is formed on the barrel side of the outer cylinder portion 43 and the guide outer cylinder portion 44.
- the muzzle brake 38 is provided with a plurality of partition plates 51 that partition the space between the outer cylinder portion 43 and the guide outer cylinder portion 44.
- the partition plate 51 is provided with a fourth gas guide hole 52 through which gas passes.
- a bullet is fired from the muzzle 40, and a part of the fire gas diffuses from the muzzle 40 to the outside.
- the pressure due to the gas diffused outside acts as a reaction to push the muzzle brake 39 and the barrel 38 backward on the shooter side.
- the gas that has not been diffused to the outside flows through the first gas guide hole 53 and flows into the space between the inner cylinder part 42 and the outer cylinder part 44. Further, a part of the gas that has passed through the first gas guide hole 53 is received by the closing portion 46 and exerts a pressure in the firing direction. This pressure acts as a force that pushes the muzzle brake 39 and the barrel 38 in the firing direction.
- the gas that has passed through the first gas guide hole 53 flows to the second gas guide hole 47 side, passes through the hole, flows into the space between the outer cylinder part 44 and the guide outer cylinder part 44, and is partitioned. Head to the side of the plate 51.
- the gas passes through the fourth gas guide hole 52 of the partition portion 51 and is guided into the space formed by the plurality of partition plates 51.
- the gas that has passed through the fourth gas guide hole 52 of the partition plate 51 is diffused to the outside from the third gas guide hole 49 formed in the closing portion 48. Further, the gas retained inside the muzzle brake 39 is cooled and gradually decreases in pressure, and slowly diffuses from the muzzle 40 to the outside.
- the reaction caused by the pressure of the gas diffused outside is canceled, and the reaction reaching the barrel 38 is detected. Can be reduced.
- the gas at the time of launch can be taken into the muzzle brake 39 more directly by the barrel hole portion 41 and the corresponding first gas guide hole 53. Thereby, the effect of reducing the reaction of the gas can be enhanced.
- the guiding outer cylinder portion 44 by providing the guiding outer cylinder portion 44, the amount of gas to be retained inside is increased, and the apparatus is compatible with a large-aperture gun. Further, by providing the partition plate 51, the gas cooling effect can be enhanced and the reaction can be reduced.
- the muzzle retractor to which the present invention is applied can efficiently reduce the influence of gas at the time of launch.
- the firearm to which the present invention is applied can efficiently reduce the influence of gas at the time of launch.
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Abstract
Description
また、本発明に係る銃火器は、発射時のガスの影響を効率よく低減できるものとなっている。
図1は、本発明の第1の実施形態の一例を示す概略斜視図である。
図2は、本発明の第2の実施形態の一例を示す概略断面図である。図3は、仕切板(1)の構造を示す概略図(a)及び仕切板(2)の構造を示す概略図(b)である。
図4は、本発明の第3の実施形態の一例を示す概略断面図である。
図5は、本発明の第4の実施形態の一例を示す概略断面図である。
また、本発明を適用した銃火器は、発射時のガスの影響を効率よく低減できるものとなっている。
2 内筒部
3 外筒部
4 蓋部
5 銃身
6 銃口
7 第1のガス誘導孔
8 ピストン
9 バネ
10 ストッパー
11 閉塞部
12 大口径用マズルブレーキ
13 内筒部
14 外筒部
15 誘導外筒部
16 蓋部
17 銃身
18 第2のガス誘導孔
19 閉塞部
20 第3のガス誘導孔
21 固定構造
22 仕切板
23 第4のガス誘導孔
24 銃口
25 簡易型マズルブレーキ
26 内筒部
27 外筒部
28 銃身
29 第1のガス誘導孔
30 銃口
31 第2のガス誘導孔
32 突起部
33 傾斜面
34 閉塞部
35 湾曲面
36 閉塞部
37 銃
38 銃身
39 マズルブレーキ
40 銃口
41 銃身孔部
42 内筒部
43 外筒部
44 誘導外筒部
45 ネジ固定部
46 閉塞部
47 第2のガス誘導孔
48 閉塞部
49 第3のガス誘導孔
50 閉塞部
51 仕切板
52 第4のガス誘導孔
53 第1のガス誘導孔
Claims (8)
- 第1の孔部が形成された略筒形状であると共に、その内部に挿入された銃身の銃口を前記第1の孔部の近傍に位置せしめて固定可能な内壁部と、
該内壁部を略囲繞する外壁部と、
前記第1の孔部が形成された位置よりも銃身が挿入される側に配置され、前記内壁部と前記外壁部との間隙を閉塞する第1の閉塞部と、
前記第1の孔部が形成された位置よりも前記第1の閉塞部とは逆側に配置され、前記内壁部と前記外壁部との間隙を閉塞する第2の閉塞部と、
略筒形状であると共に、前記第1の孔部と前記第1の閉塞部の間の領域を前記内壁部及び前記外壁部に接した状態で移動可能なピストンと、
該ピストンと前記第1の閉塞部との間に配置され、前記第1の孔部と前記第1の閉塞部の間の領域を移動可能であると共に、弾性を有するピストン受け部材とを備える
砲口制退器。 - 前記ピストンは、回転自在に形成されると共に、その重心が偏って構成された
請求項1に記載の砲口制退器。 - 前記第1の孔部と前記ピストンの間に位置し、かつ、前記内壁部から前記外壁部側に突出した突起部を備える
請求項1または請求項2に記載の砲口制退器。 - 前記第1の閉塞部は開閉可能な第1の開口部が設けられた
請求項1または請求項2に記載の砲口制退器。 - 前記外壁部は、外周面上、かつ、前記ピストンが移動可能な領域の少なくとも一部に第2の孔部が形成され、
前記外壁部を略囲繞する誘導外壁部と、
前記第2の孔部が形成された位置よりも銃身が挿入される側に配置され、前記外壁部と前記誘導外壁部との間隙を閉塞する第3の閉塞部と、
前記第2の孔部が形成された位置よりも前記第3の閉塞部とは逆側に配置され、前記外壁部と前記誘導外壁部との間隙を閉塞する第4の閉塞部と、
前記第3の閉塞部に設けられた開閉可能な第2の開口部と、
前記第4の閉塞部に設けられた第3の孔部と、
前記外壁部と前記誘導外壁部との間隙を閉塞すると共に、少なくとも一部に第4の孔部が形成された仕切り部とを備える
請求項1または請求項2に記載の砲口制退器。 - 前記仕切り部は、複数配置されると共に、隣接した前記仕切り部同士で前記誘導外壁部の長手方向と略直交する平面における前記第4の孔部の形成位置が異なる
請求項5に記載の砲口制退器。 - 第1の孔部及び該第1の孔部と所定の間隔を空けて位置する第2の孔部が形成された略筒形状であると共に、その内部に挿入された銃身の銃口を前記第2の孔部の近傍に位置せしめて固定可能な内壁部と、
該内壁部を略囲繞する外壁部と、
前記第1の孔部が形成された位置よりも銃身が挿入される側とは反対側に配置され、前記内壁部と前記外壁部との間隙を閉塞する第1の閉塞部と、
前記第2の孔部が形成された位置よりも銃身が挿入される側に配置され、前記内壁部と前記外壁部との間隙を閉塞する第2の閉塞部と、
該内壁部の外周面、かつ、前記第1の孔部の前記第2の孔部側に隣接して位置すると共に、前記内壁部から前記外壁部側に突出した突起部とを備える
砲口制退器。 - 銃口近傍の領域に銃身孔部が形成された銃身と、
該銃身を内部に固定可能な略筒状形状であると共に、前記銃身孔部と対応する領域に第1の孔部が形成された内壁部と、
該内壁部を略囲繞すると共に、前記第1の孔部が形成された位置よりも前記銃身が挿入される側に第2の孔部が形成された外壁部と、
前記第1の孔部が形成された位置よりも銃身が挿入される側に配置され、前記内壁部と前記外壁部との間隙を閉塞する第1の閉塞部と、
前記第1の孔部が形成された位置よりも前記第1の閉塞部とは逆側に配置され、前記内壁部と前記外壁部との間隙を閉塞する第2の閉塞部と、
前記外壁部を略囲繞する誘導外壁部と、
前記第2の孔部が形成された位置よりも銃身が挿入される側に配置され、前記外壁部と前記誘導外壁部との間隙を閉塞する第3の閉塞部と、
前記第2の孔部が形成された位置よりも前記第3の閉塞部とは逆側に配置され、前記外壁部と前記誘導外壁部との間隙を閉塞する第4の閉塞部と、
前記第4の閉塞部に設けられた第3の孔部と、
前記外壁部と前記誘導外壁部との間隙を閉塞すると共に、少なくとも一部に第4の孔部が形成された仕切り部とを有する砲口制退器とを備える
銃火器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2013542696A JP5414954B1 (ja) | 2013-05-29 | 2013-05-29 | 砲口制退器及び銃火器 |
CN201380076978.XA CN105308409A (zh) | 2013-05-29 | 2013-05-29 | 炮口制退器以及枪械 |
US14/894,382 US20160123689A1 (en) | 2013-05-29 | 2013-05-29 | Muzzle brake and firearm |
PCT/JP2013/064850 WO2014192090A1 (ja) | 2013-05-29 | 2013-05-29 | 砲口制退器及び銃火器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2013/064850 WO2014192090A1 (ja) | 2013-05-29 | 2013-05-29 | 砲口制退器及び銃火器 |
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WO2014192090A1 true WO2014192090A1 (ja) | 2014-12-04 |
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PCT/JP2013/064850 WO2014192090A1 (ja) | 2013-05-29 | 2013-05-29 | 砲口制退器及び銃火器 |
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US (1) | US20160123689A1 (ja) |
JP (1) | JP5414954B1 (ja) |
CN (1) | CN105308409A (ja) |
WO (1) | WO2014192090A1 (ja) |
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---|---|
CN105308409A (zh) | 2016-02-03 |
JPWO2014192090A1 (ja) | 2017-02-23 |
JP5414954B1 (ja) | 2014-02-12 |
US20160123689A1 (en) | 2016-05-05 |
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