JP2005265348A - Pre-insertion type cartridge for air gun - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pre-insertion type cartridge for air guns having the appearance similar to a ball cartridge and capable of firing a bullet. <P>SOLUTION: This cartridge for the air guns, having the appearance similar to the ball cartridge, separatably holding the bullet on a tip end part of a cylindrical main body 11, and having a passage of a compressor from a rear end part to the tip end part, further has an inner shaft 12 having a length to penetrate through the main body 11 and reach the tip end part, fixed to the main body 11 at the rear end part, and used as the passage of the compressor in itself, and a bullet holding member 22 mounted on the tip end part longitudinally slidably between the main body 11 and the inner shaft 12, and capable of holding one bullet 20 in a pre-inserted state. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cartridge for an air gun having an appearance resembling an actual bullet, holding a bullet detachably at the front end of a cylindrical main body, and having a compressed air passage from the rear end to the front end. is there.

  Regarding toy guns similar to airsoft guns, the Japan Playgun Cooperative Association has agreed to voluntary rules for playguns. In particular, in the case of the revolver type, the hardness measured by the Rockwell hardness test method (JIS Z 2245) before the magazine is HRC55. The insert made of the above steel material having a diameter larger than the diameter of the chamber and a wall thickness of 1 mm or more is attached in a form that is difficult to remove, and the depth of the chamber is 1 in the rotary magazine (cylinder). / 3 or more inserts are provided in a structure that cannot be easily taken out, and strict commitments such as preventing real bullets from being loaded are being implemented. In particular, the latter insert is intended to be provided as an obstacle in the revolver's chamber, so that even a cartridge resembling an actual bullet cannot be used.

For this reason, it is difficult to use a cartridge resembling a real bullet. In addition, there is nothing to be referred to in the related invention having the appearance of the cartridge, for example, Japanese Utility Model No. 7-32389 fires a bullet by the elastic energy of a spring, and registered utility model No. 3005041 explodes explosives. Propellant gas pressure is generated by using the gunpowder gas pressure, and a toy gun shell that appears to have disappeared due to the warhead flying like a real bullet has been proposed, but it can be applied to air guns. Can not. The revolver type air gun cylinder has a structure in which bullets are loaded into each chamber several times like the ones of Japanese Utility Model Laid-Open No. 3-21695 and Japanese Patent Laid-Open No. 2001-304798, like a real cartridge. Things cannot be used.

Utility Kaihei 7-32389 Japanese Utility Model Publication No. 3-21695 Registered Utility Model No. 3005041 JP 2001-304798 A

  The present invention has been made in view of the above points, and an object of the present invention is to provide a retractable cartridge for air guns having an appearance resembling a real bullet and capable of firing a bullet. Another object of the present invention is to provide a pre-fillable cartridge for air guns that can be used not only for a revolver type but also for a pistol type. Another object of the present invention is to provide a pre-fillable cartridge for air guns that conforms to the voluntary rules of a playgun that disables the use of live ammunition.

  In order to solve the above-described problems, the present invention has an appearance resembling a real bullet, holds a bullet in a separable manner at the front end of a cylindrical body, and has a compressed air passage from the rear end to the front end. As a cartridge for air guns, it has a length that penetrates the main body and reaches the front end, and is fixed to the main body at the rear end, and itself is a passage for compressed air, and the main body at the front end And a bullet holding member that is slidable in the front-rear direction between the inner shaft and the inner shaft and can hold a single bullet in a retractable manner.

  The actual cartridge has an encased case or cartridge case and a bullet fixed to its tip, so it is an important factor in determining whether these are similar to the actual bullet. It has a portion corresponding to a cartridge case and a portion corresponding to a bullet. A cylindrical body corresponds to the case. However, the bullet is only required to be detachably held at the tip of the main body, and does not need to be a portion corresponding to the bullet in appearance.

  Furthermore, the main body must have a passage for compressed air from the rear end to the front end. This compressed air fires a bullet set at the tip, but in the present invention, the bullet can be separated from the cartridge in advance so that the bullet is fed into the bullet loading part at the rear end of the barrel by the firing stage. Take the configuration to do. With this configuration, it is possible to remarkably improve the accuracy of hit accuracy, which is a weak point of air guns having a conventional rotary magazine held at the tip of a cartridge like a real bullet.

  An inner shaft constituting a passage for compressed air is disposed inside the main body, and this is integrally fixed to the main body at the rear end. One role of the inner shaft is to place the bullet at the tip of the cartridge along with the bullet holding member on the rear side of the bullet. The inner shaft has a smaller diameter than the inner diameter of the cartridge body, whereby a ring-shaped sliding space is formed between the inner shaft, the body, and the inner surface. This ring-shaped space is capable of receiving a pipe-shaped insert that is fixed in the medicine chamber according to a voluntary code and prevents loading of an actual bullet.

  A bullet holding member is slidably provided in the front-rear direction at the tip between the main body and the inner shaft. The bullet holding member has a cylindrical shape in which a bullet to be fired is set and held in a cartridge in a retractable manner, and the tip is an insertion opening for the advancement of the bullet. It has already been mentioned that the bullet is held between the bullet holding member and the inner shaft. The bullet holding member is a member that holds the periphery of the bullet, can be slid in the front-rear direction, and the bullet supported on the rear side by the inner shaft by sliding backward is the insertion port of the bullet holding member Can be removed from the cartridge. The operation of separating the bullet from the cartridge is performed in the process of loading the cartridge into the medicine chamber provided in the cylinder of the revolver. In the case of a pistol cartridge supplied from a magazine, this is performed in the process of placing the cartridge from the magazine behind the loading unit.

  The bullet holding member is a member disposed at the tip of the main body, and the bullet holding member has the appearance of a bullet, just as the main body has the appearance of a cartridge case. The bullet holding member is slidable inside the sliding space between the main body and the inner shaft. For example, when it is loaded into the revolver's chamber, it is pushed backward by the pushing portion, and if it becomes completely invisible, Since it looks as if it has been fired, it changes its appearance when it is loaded into the cartridge chamber and when it is discharged after firing. This is a point that can be pointed out. The change in appearance before and after the launch of the appearance can be obtained in the same manner even in the case of the pistol type.

  The bullet holding member may be formed by combining a plurality of members into a cylindrical shape, or may be a single member formed entirely in a cylindrical shape. The former is suitable for forming a bullet holding member made of plastic or the like having almost no elasticity, and the tip insertion opening is elastically expanded by an elastic means such as an O-ring for holding the bullet. It is desirable to have an integrated structure. The latter is suitable for forming a bullet holding member by a resin material having elasticity, and the other insertion member is not required because the insertion port at the tip can be elastically expanded.

  In order to return the bullet holding member pushed into the main body to the tip of the main body in order to set a new bullet, the main body is directed downward and shaken to drop by its own weight. In addition, a method of inserting a shaft into the space between the main body and the inner shaft and pushing it out, or pushing out like a piston using gas pressure is naturally a means that can be taken. The latter method can be carried out by making a hole in the rear end of the main body.

  Note that the number of bullets that can be fired using one cartridge of the present invention is one, but this may be considered preferable because it matches the actual bullet. By loading the cartridge into the magazine or cylinder, one bullet is separated from the main body, and immediately before firing, it is sent to the loading section and enters a firing standby state. For this reason, unlike the conventional revolver, it is fired from the cylinder, moved to the barrel, fired from the muzzle, and jumped out. According to the cartridge of the present invention, the bullet can be separated from the main body at the time of loading in advance, Can be sent to the gun, and there is no possibility that the accuracy of hitting will be disturbed by shifting to the barrel.

  Since the present invention is configured and operates as described above, it is possible to realize a retractable cartridge for air guns having an appearance similar to that of a real bullet and capable of firing a bullet. It can be used not only for molds but also for pistol molds, and the main body and bullet holding member are in a sliding relationship, and when loaded, a bullet holding member similar to a bullet appears before and after cartridge loading. Since it can no longer be erased, it looks as if the kite has been fired, has a great sense of realism, and has the effect of conforming to the voluntary rules of the playgun that disables the use of live ammunition.

  Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. FIG. 1 is a cross-sectional view of an exploded state and an assembled state of an example of a pre-fillable cartridge for air guns according to the present invention, a cylindrical main body 11 resembling a cartridge case, and a cylindrical main body 11 disposed inside the main body 11. A portion comprising an inner shaft 12 having a compressed air passage 14 inside and a cap 13 integrally connecting the main body 11 and the inner shaft 12 at the rear end corresponds to the cartridge case. Is forming.

  The main body 11 has a size and a shape that can be loaded into a medicine chamber 32 provided in a cylinder of a revolver type gun, and the inner shaft 12 is provided in the medicine chamber 32 for implementation of a voluntary code. It has an outer diameter that can be inserted into the pipe-shaped push-in portion 33 and a slightly longer dimension that protrudes from the main body 11. The outer surface of the distal end portion of the inner shaft 12 is a locking portion 15 having a slightly enlarged outer diameter, which is a portion that prevents the bullet holding member 22 described later from coming out forward. The inner shaft tip 16 is a portion that supports a spherical bullet 20 commonly called a BB bullet from the rear side, and the tip opening portion of the compressed air passage 14 constitutes a nozzle.

  The inner shaft 12 is fitted to the fitting opening 18 of the cap 13 at the rear end portion 17, and the main body 11 is fitted to the stepped outer portion 19 of the cap 13, and a certain amount of sliding is provided between the main body 11 and the inner shaft 12. A dynamic space 21 is formed. The sliding space 21 constitutes a space in which the bullet holding member 22 is slidable and receives a pipe-shaped pushing portion 33 provided in a medicine chamber 32 of the cylinder. The bullet holding member 22 is composed of two halved parts 23 and 23, and is a cylindrical member as a whole formed by fitting an elastic ring 25 indicated by an O-ring into outer grooves 25a and 25b. The cylinder has two parts: a rear sliding part 26 a that can be fitted and slid on the outer surface of the inner shaft 12, and a front receiving part 26 b that can receive one bullet 20. Reference numeral 26c denotes a bullet retaining protrusion.

  An example of the cylindrical bullet holding member 28 made of a single member is shown in parallel with the example of the bullet holding member 22 made of the two members shown in FIG. The cylindrical bullet holding member 28 has a rear sliding portion 29a having an inner diameter capable of sliding the inner shaft, and also has a receiving portion 29b for receiving the front bullet. 29c is a bullet retaining protrusion that opens and closes by elasticity and allows the bullet 20 to pass. The cylindrical bullet holding member 28 is formed of a resin having elasticity such as rubber.

  Reference numeral 30 denotes a revolver as one of air guns. The pipe-shaped push-in portion 33 provided in the medicine chamber 32 of the cylinder 31 is attached with a structure that cannot be easily taken out in order to prevent the actual bullet from being loaded. The illustrated push-in portion 33 constitutes a bullet passage 34 having a length that occupies the first half or more of the chamber 32 and having an inner diameter through which the bullet 20 can pass. At the front end of the bullet passage 34, there is provided a slightly small-diameter retaining ring 35 that prevents the bullet 20 from slipping out regardless of the operation of the air guns. It has an inner diameter that allows 20 to pass through.

  In the state where the cylinder 31 is set in the revolver body, one of the chambers 32 is located on the same axis as the barrel 36 and rearward (see FIG. 6). The inside of the rear end portion of the barrel 36 is a bullet loading portion 37, which holds the bullet 20 that has been prepared for launching and has a resilient protrusion for imparting upward rotation that generates lift to the bullet 20. A hop-up unit 38 is provided. Reference numeral 39 denotes a jet nozzle for compressed air, which is provided on the revolver body on the same axis as that of the barrel 36 and on the rear side, and can be moved forward and backward as the trigger 41 is pulled. Although not shown, the ejection nozzle 39 is connected to a pressure source, and ejects a gas having a required pressure by opening and closing a passage accompanying a trigger operation. Reference numeral 42 denotes a hammer, which is linked to the trigger operation but is not related to the firing function.

  In the present invention having such a configuration, when the cartridge 10 is loaded into the drug chamber 32 of the cylinder 31 one by one, the bullet holding member 22 retreats against the pushing portion 33 and the held bullet 20 is released. (Figure 3). The bullet holding member 22 illustrated in FIG. 3 shows a situation in which the two halved parts 23 and 23 are opened by the elasticity of the O-ring 25 and the bullet 20 is being removed from the insertion opening. When the cartridge 10 is pushed into the chamber, the bullet holding member 22 is moved backward in the sliding space 21 by the pushing portion 33 (FIG. 4), and accordingly, the bullet 20 supported by the inner shaft 12 from the rear side. Is relatively advanced, and is finally elastically fixed and held by the stop ring 35, and the cartridge 10 is loaded in the drug chamber 32 of the cylinder 31 (FIG. 5).

When the cylinder 31 loaded with the cartridge 10 is set on the revolver main body 30, a shooting is possible (FIG. 6). When the trigger 41 is pulled, the nozzle 39 moves forward, and the cartridge 10 pushed by the nozzle 39 moves forward. As a result, the bullet 20 is pushed out of the stop ring 35 and fits in the loading portion 37 at the rear end of the barrel, and the hop-up portion 38. Stops in contact with (Fig. 7). At this time, the hammer 42 is also interlocked, but this is an operation unrelated to the firing function. When the trigger 41 is pulled out, the compressed air from the compressed air passage is ejected from the nozzle 39 to the inner shaft 14 and is injected behind the bullet 20 of the bullet loading portion 37 located at the tip thereof. The part 37 is taken off, the movement is started while obtaining rotation through the hop-up part 38 (FIG. 8), and it is fired from the muzzle.

  After the firing, the cylinder 31 is swung out, and when the cartridge 10 is removed from the chamber 32, the bullet holding member 22 is retracted into the sliding space 21, and the cartridge 10 is composed only of the cartridge case, and the warhead flies. It looks like it's gone (Figure 9). In order to set the bullet 20 on the main body 11 after use, the bullet holding member 22 needs to be taken out from the front end portion of the main body 11, and can be put out by, for example, facing down or shaking. However, it is also possible to mechanically push out the bullet holding member 22 by a shaft or compressed air, and it is desirable to make a hole 43 in the cap 13 at the rear end for these operations (FIG. 1).

As already mentioned, the preload cartridge of the present invention can also be applied to pistol type air guns, and an example thereof will be described with reference to FIGS. In the case of the pistol 60, the cartridge 50 loaded with the bullet 20 is set in the magazine 61 equipped in the grip portion. Since the structure of the cartridge 50 is basically the same as that of the embodiment shown in FIGS. 1 to 9 as seen in FIGS. 10 and 11, the reference numerals in FIG. 1 are used for the basic structure. . However, the proportion of the entire cartridge is changed from that of the revolver 30, and such a change can be easily made within the scope of the present invention.

  One difference is the presence of a hook 71 that holds the cartridge 50 moved to the chamber 62 behind the loading unit. The hook 71 receives the force of a spring 72 that acts to press the cap 13 of the cartridge 50 against the nozzle 73 of the compression injection system 70. The cartridge 50 is hooked on the hook 71 by the flange portion 51 of the cap 13. Since the configuration of the hop-up unit 38 and the like may be the same as the above-described example, the reference numerals are used and the detailed description is omitted.

  In the case of pistol type air guns, when the slide 80 is operated, the cartridge 50 is pushed out of the magazine 61 into the chamber 62 at the rear of the mounting portion, and when the slide 80 is returned, the cartridge 50 is provided at the rear end of the mounting portion 67. The pushing portion 53 and the bullet holding portion 22 are in contact with each other, the bullet holding portion 22 is pushed into the sliding space 21, and the hook 71 is engaged with the flange portion 51. Note that the push-in portion 53 also has a role of making it impossible to load an actual bullet, and the bullet 20 is fed into the loading portion 67 at the tip of the inner shaft 12. When the trigger is pulled, the bullet 20 starts to move while obtaining rotation through the hop-up portion 38 by the compressed air from the compressed air injection system 70 (FIG. 11), and is fired from the muzzle.

  As the bullet 20 is fired, the slide 80 blows back, and the chamber 62 behind the loaded portion is exposed. Then, the fired cartridge 50 into which the bullet holding member 22 is retracted has an appearance of only a cartridge case, and is pushed up to the next bullet supplied by the push spring 63 from below, so that the hook 71 rotates around the hook end. Will be discharged. That is, the evacuation operation by blowback is automatically performed.

Cross-sectional explanatory drawing which shows one example of the cartridge for revolvers which is a pre-loading type cartridge for air guns which concerns on this invention. Breaking explanatory drawing which shows a cylinder and a cartridge. Explanatory drawing which shows the step which inserts a cartridge into a chemical | medical chamber. Explanatory drawing which shows the step in which the bullet holding member is pushed. Explanatory drawing which shows the step which has loaded the cartridge into the cylinder and the bullet is hold | maintained at the stop ring. Explanatory drawing which shows the state which set the cylinder to the revolver main body. Explanatory drawing which shows the state which started pulling a trigger. Breaking explanatory drawing which shows the state which pulls a trigger and the bullet is being fired. Explanatory drawing which shows the state which took out the fired cartridge from the cylinder. The fracture | rupture explanatory drawing which shows the state of the cartridge for pistols which is the other example of this invention. Explanatory drawing which shows the state discharged after discharge.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 50 Cartridge 11 Main body 12 Inner shaft 13 Cap 14 Compressed air passage 15 Locking portion 16 Inner shaft tip 20 Bullet 21 Sliding space 22, 28 Bullet holding member 24 Compression spring 25 Ring 30 Revolver 31 Cylinder 32 Drug chamber 33, 53 Push-in part 36 Barrel 38 Hop-up part 39, 73 Nozzle 51 Flange 61 Magazine 62 Chamber

Claims (6)

An air gun cartridge that has an appearance resembling a real bullet, holds the bullet detachable at the front end of the cylindrical main body, and has a compressed air passage from the rear end to the front end. The inner shaft that is fixed to the main body at the rear end portion and that itself becomes a passage for compressed air, and the front and rear direction between the main body and the inner shaft at the front end portion. And a bullet holding member capable of holding a single bullet in a pre-loading manner, and a pre-fillable cartridge for an air gun. 2. The bullet holding member is configured to slide backward with respect to the main body by a push-in portion provided in a revolver chamber or a rear portion of a pistol, thereby causing the bullet to be released forward. The pre-filled cartridge for air guns as described. 3. A retractable cartridge for an air gun according to claim 2, wherein the push-back portion provided in the medicine chamber of the revolver also serves as an insert for preventing an actual bullet from being loaded. The revolver is configured so that when the hammer is raised, the main body moves forward by the advance of the nozzle in contact with the rear end of the inner shaft, and the bullet is set on the bullet loading portion at the rear end of the barrel. Cartridge for air guns. 2. The air gun pre-loading device according to claim 1, wherein the bullet holding member is composed of two parts obtained by dividing a cylindrical member into two parts, and has a structure in which the insertion port at the tip can be opened and closed by being integrated by a resilient ring. Expression cartridge. 2. The air gun type retractable cartridge according to claim 1, wherein the bullet holding member has a structure in which the whole is formed into a single cylindrical shape by a resin having elasticity.

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