US20040089280A1 - Toy gun - Google Patents
Toy gun Download PDFInfo
- Publication number
- US20040089280A1 US20040089280A1 US10/694,054 US69405403A US2004089280A1 US 20040089280 A1 US20040089280 A1 US 20040089280A1 US 69405403 A US69405403 A US 69405403A US 2004089280 A1 US2004089280 A1 US 2004089280A1
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- US
- United States
- Prior art keywords
- gas
- passage
- loading chamber
- gas passage
- movable member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000003973 paint Substances 0.000 claims abstract description 66
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 238000009825 accumulation Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 10
- 230000001105 regulatory effect Effects 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
- F41B11/62—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas with pressure supplied by a gas cartridge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/70—Details not provided for in F41B11/50 or F41B11/60
- F41B11/72—Valves; Arrangement of valves
- F41B11/723—Valves; Arrangement of valves for controlling gas pressure for firing the projectile only
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
- Micromachines (AREA)
- Nozzles (AREA)
Abstract
To avoid the situation, in which a gas pressure to be used for shooting a bullet from a loading chamber is partially lost, a toy gun in which a paint bullet charged in the loading chamber may be reliably shot with gas under a relatively low pressure is provided.
A gas flow control mechanism is arranged movably with respect to a movable member and forms a first gas passage for guiding the gas into the loading chamber and a second gas passage for guiding the gas to pressure receiving portions. For a period in which gas supply controllers take a gas supply state as the movable member advances, the gas flow control mechanism transfers from a state, in which the gas passage is opened whereas the gas passage is closed to supply the gas to the loading chamber through the gas passage, to a state, in which the gas passage is closed whereas the gas passage is opened to apply the gas to the pressure receiving portions through the gas passage, so that the movable member is moved back and forth thereby to make preparations for supplying the ballet P from a magazine to the loading chamber.
Description
- 1. Field of the Invention
- The present invention relates to a toy gun, in which the shooting of bullets charged in a loading chamber and the automatic supply of the loading chamber with the bullets are caused by the action of a gas pressure and, more particularly, in which the bullets to be charged in the loading chamber and shot are exemplified by paint containing bullets for discharging paint when crushed.
- 2. Description of the Related Art
- In the field of a model gun called the toy gun (or air soft gun) in which a bullet is short from a barrel in accordance with the operation of a trigger and in which a slider arranged along the barrel is moved for supplying a next bullet, there is known a toy gun, in which the shooting of a bullet charged in a loading chamber disposed at the back of the barrel is done by using a gas pressure and in which the automatic supply of a bullet to the loading chamber by the movement of the slider is also done by using the gas pressure.
- Generally in this toy gun, the grip is provided with a magazine for holding a plurality of bullets, and an accumulation chamber for reserving gas. Each time the bullet charged in the loading chamber is shot by using the gas pressure from the accumulation chamber formed in the grip, the gas pressure from the accumulation chamber is further used to move the slider backward and then forward in the direction along the barrel, so that the bullets held in the magazine disposed in the grip can be supplied to the emptied loading chamber and shot automatically. Usually in this toy gun in which the gas pressure is used to shoot the bullet charged in the loading chamber and to supply the bullet to the loading chamber, the gas to be reserved in the accumulation chamber is exemplified by a liquefied gas under a low pressure, and the bullet to be charged in the loading chamber is a sham one called the “BB bullet” made of plastics and having a relatively small diameter such as about 6 mm.
- Apart from the toy gun using the aforementioned sham bullet of a diameter of about 6 mm, on the other hand, there is also known a toy gun, which uses a paint containing bullet (as will be called the “paint bullet”) having a relatively large diameter exceeding 10 mm, such as about 17 mm and made easily crushable to discharge the paint (for example, as referred to the non-patent publication: “Monthly Magazine Gun, October”, issued on Oct. 1, 1992 by Kokusai Shuppan Kabushiki Gaisha, pp. 66 to 75).
- In the toy gun using the paint bullet given a relatively large diameter and a relatively heavy weight by containing the paint, as disclosed in the aforementioned non-patent publication, a gas tank charged with carbonate gas (i.e., CO2 gas) under a high pressure is arranged in the frame, and a magazine called the “loader” capable of holding a plurality of paint bullets is so mounted in the rear portion of the barrel with an upward protrusion through a feeding port.
- In the frame, moreover, there are arranged a movable member formed by combining an upper bolt and a lower bolt, and a valve mechanism formed by arranging an exhaust valve movably in an air chamber formed by a cylinder member. The valve mechanism is provided with first and second gas passages and a connection gas passage for connecting those gas passages. When the trigger is pulled to shoot the paint bullet charged in the rear portion of the barrel, moreover, the movable member is advanced by the biasing force of a spring member to act on the movable member, thereby to provide the communication between the first gas passage formed in the valve mechanism and the barrel and to move the exhaust valve from the position, at which the gas pressure from the gas tank is not introduced into the connection gas passage, to the position, at which the gas pressure from the gas tank is introduced into the connection gas passage. As a result, the gas pressure from the gas tank flows into both the first and second gas passages through the connection gas passage. The gas pressure having entered the first gas passage is guided into the barrel so that it is used for shooting the paint bullet.
- When the paint bullet is shot, moreover, the movable member, which is caused when advanced to take the position for closing a feeding port from the barrel, is retracted by the raised gas pressure coming from the gas tank and acting through the second gas passage formed in the valve mechanism. As a result, the exhaust valve is moved from the position, at which the gas pressure from the gas tank is introduced into the connection gas passage, to the position, at which the gas pressure from the gas tank is not introduced into the connection gas passage, and the feeding port and the rear portion of the barrel are made to communication so that one of the paint bullets held in the loader drops by its own weight to the rear portion of the barrel through the feeding port and is charged. Each time the paint bullets charged in the rear portion of the barrel are shot, the emptied barrel is automatically supplied at its rear portion with a new paint bullet.
- In the aforementioned toy gun in which the shooting of the paint bullet charged in the rear portion of the barrel acting substantially as the loading chamber and the supply of the paint bullet to the rear portion of the barrel are performed by using the gas pressure, the gas pressure from the gas tank is introduced into the first gas passage through the connection gas passage by the movement of the exhaust valve, as caused by the forward movement of the movable member, and the gas pressure from the gas tank is also partially introduced into the second gas passage through the connection gas passage when it is used for shooting the paint bullet. However, the introduction of the gas pressure into the second gas passage is substantially the leakage of the gas pressure from the connection gas passage, for the time period from the introduction start to the instant when the paint bullet is shot by the gas pressure introduced into the first gas passage, so that the gas pressure to be guided from the gas tank to the connection gas passage for shooting the paint bullet is partially lost. In the toy gun constructed to avoid the situation in which the gas pressure to be used for shooting the paint bullet might otherwise be partially lost, moreover, gas under a high pressure has to be employed, so that the gas tank as the gas supply source is so charged with a high-pressure gas such as the CO2 gas as to ensure the shooting the paint bullet having a relatively heavy weight.
- In the toy gun which is adapted to shoot the paint bullet and to supply the paint bullet to the loading chamber by utilizing the gas pressure, therefore, it is desired to avoid the situation, in which the gas pressure to be used for shooting the paint bullet charged in the loading chamber might otherwise be partially lost. It is accordingly desired that the paint bullet charged in the loading chamber is reliably shot even by using the low-pressure gas. In the prior art, however, there has not been found the toy gun, which can satisfy those desired.
- Accordingly, it is an object of the present invention to provide a toy gun which is adapted to shoot a paint bullet and to supply the paint bullet to a loading chamber by utilizing gas pressure, and which avoids the aforementioned disadvantages encountered with the prior art.
- Another object of the present invention is to provide a toy gun, which can be freed from the situation that gas pressure to be used for shooting a bullet from a loading chamber might otherwise be partially lost, when the shooting of the bullet charged in the loading chamber disposed in a barrel and the supply of the bullet to the loading chamber are done by using the gas pressure, and which can reliably shoot a paint bullet charged in the loading chamber, even when the bullet to be charged in the loading chamber is the paint bullet having a relatively heavy weight and when the gas to be used is exemplified by gas under a lower pressure than that of CO2 gas.
- According to the first aspect of the present invention, there is provided a toy gun comprising: a frame including a barrel, a loading chamber formed in the barrel, a magazine for holding bullets to be charged in the loading chamber, and a trigger; a movable member arranged with a pressure receiving potion in the frame and made movable in a first direction toward the loading chamber and in a second direction opposed to the first direction; a drive mechanism for moving the movable member in the first direction in response to the operation of the trigger; a gas supply controller connected to a gas outlet passage for taking a gas supply state, in which gas is supplied, as the movable member moves in the first direction; and a gas flow control mechanism arranged movably with respect to the movable member and forming a first gas passage for guiding the gas into the loading chamber and a second gas passage for guiding the gas to the pressure receiving portion, whereby, for a period in which the gas supply controller takes the gas supply state as the movable member moves in the first direction, the gas flow control mechanism transfers from a first state, in which the first gas passage is opened whereas the second gas passage is closed to supply the gas obtained in the gas outlet passage to the loading chamber through the first gas passage, to a second state, in which the first gas passage is closed whereas the second gas passage is opened to apply the gas obtained in the gas outlet passage to the pressure receiving portion through the second gas passage, so that the movable member is moved in the second direction thereby to make preparations for supplying the ballet from the magazine to the loading chamber.
- In the second aspect of the invention, paint the bullets to be held in the magazine are paint bullets for discharging paint when crushed.
- In the toy gun thus constructed according to the invention, the gas supply controller is held in the gas supply state to supply the gas to the gas outlet passage, accordingly as the movable member moves in the first direction to the loading chamber in accordance with the operation of the trigger. The gas thus supplied to the gas outlet passage is guided to the loading chamber through such the first gas passage in the gas flow control mechanism to open the first gas passage and to close the second gas passage so that it is used for shooting the bullet charged in the loading chamber. This bullet shooting, i.e., the movement of the bullet from the loading chamber lowers the gas pressure in the gas flow control mechanism. By the action of the gas flow control mechanism accompanying the lowering of the gas pressure, the first gas passage is changed from the open state to the closed state, and the second gas passage is changed from the closed state to the open state. As a result, the gas, as fed to the gas outlet passage by the movement of the movable member in the first direction to the loading chamber, acts the pressure receiving portion formed on the movable member through the second gas passage so that the movable member is moved in the second direction apart from the loading chamber, to take the state for making preparations for supplying the loading chamber with the bullet.
- In the gas flow control mechanism, therefore, when the gas fed to the gas outlet passage is fed to the loading chamber through the first gas passage, the second gas passage is closed to prevent the situation, in which the gas flows into the second gas passage. As a result, the situation, in which the gas pressure to be used for shooting the bullet charged in the loading chamber is partially lost, is reliably avoided to use the gas supplied to the gas outlet passage, effectively for shooting the bullet. As a result, not only in case the bullet to be supplied from the magazine to the loading chamber is exemplified by the paint bullet having a relatively heavy weight but also in case the low-pressure gas is supplied from the gas supply means to the gas outlet passage, it is possible to shoot the paint bullet reliably from the loading chamber.
- FIG. 1 is a sectional view presented for describing the construction and actions of one embodiment of a toy gun according to the invention defined in any of claims1 to 6;
- FIG. 2 is a sectional view presented for describing the construction and actions of the embodiment shown in FIG. 1;
- FIG. 3 is a sectional view presented for describing the construction and actions of the embodiment shown in FIG. 1;
- FIG. 4 is a sectional view presented for describing the construction and actions of the embodiment shown in FIG. 1;
- FIG. 5 is a sectional view presented for describing the construction and actions of the embodiment shown in FIG. 1;
- FIG. 6 is a sectional view presented for describing the construction and actions of the embodiment shown in FIG. 1;
- FIG. 7 is a sectional view presented for describing the construction and actions of the embodiment shown in FIG. 1; and
- FIG. 8 is a sectional view presented for describing the construction and actions of the embodiment shown in FIG. 1.
- FIG. 1 is a sectional view presented for describing the construction and actions of one embodiment of a toy gun according to the invention defined in any of claims1 to 6.
- The embodiment shown in FIG. 1 is provided with a
barrel 2, aloading chamber 4 disposed on the rear side of thebarrel 2, amagazine 5, agas chamber 8, amovable member 10, atrigger 30, and aframe 40 having agrip 31. Themagazine 5 is located above theloading chamber 4 and enabled to hold a plurality of paint bullets P, which have a relatively large diameter of about 11 mm and which discharge paint when crushed, for example. Moreover, themagazine 5 is provided with abullet discharge port 5 a, which has a diameter slightly larger than that of the paint bullet P held in themagazine 5 while confronting theloading chamber 4, so that theloading chamber 4 is supplied with one paint bullet P when this paint bullet P drops by its own weight into theloading chamber 4 through thebullet discharge port 5 a. - The paint bullet P having dropped by its own weight from the
magazine 5 in theloading chamber 4 takes aninlet position 4 a and a loading position 4 b ahead of the former in theloading chamber 4. The positioning of the paint bullet P at theinlet position 4 a in theloading chamber 4 is done by a retaining member, which has a pair of small protrusions 32 (although only one is shown) and is arranged in theloading chamber 4, and a gasflow control mechanism 50, which will be described hereinafter. On the other hand, the positioning of the paint bullet P at the loading position 4 b in theloading chamber 4 is done by both anannular seal member 33, which is arranged in theloading chamber 4, and the gasflow control mechanism 50. - To the
gas chamber 8, there is connected agas outlet passage 34. In thisgas outlet passage 34, there is arranged acontrol valve 35, which is made movable in the direction along thebarrel 2. Thegas outlet passage 34 is extended upward from thegas chamber 8 and has anupper opening 34 a opened in the vicinity of theloading chamber 4. Thegas outlet passage 34 is so controlled by thecontrol valve 35 arranged therein that it is kept at an open state, in which it communicates with thegas chamber 8, and at a closed state, in which its communication with thegas chamber 8 is blocked. - The
control valve 35 includes avalve function portion 35 a held in thegas chamber 8, and apiston portion 35 b having acoil spring 36 wound thereon. Thecontrol valve 35 is biased by thecoil spring 36 in the direction to keep thegas outlet passage 34 in the closed state. In thepiston portion 35 b of thecontrol valve 35, moreover, there is inserted alock member 38, which can move up and down. Thislock member 38 has radially enlarged upper and lower end portions, and acoil spring 39 is arranged in the lower end portion. Thiscoil spring 39 applies the upward and downward biasing forces to thelock member 38. - When the
control valve 35 takes the position, at which thegas outlet passage 34 is kept in the closed state by thevalve function portion 35 a, as shown in FIG. 1, it brings thepiston portion 35 b into downward abutment against the lower end portion of thelock member 38 and blocks the upward movement of thelock member 38 against the biasing force of thecoil spring 39 thereby to keep thelock member 38 at a lower position. - With the
gas chamber 8, moreover, there communicates agas supply passage 41, to which there is connected apipe 42 extending from the external gas supply source such as a gas bomb. Thegas supply passage 41 introduces the gas, as supplied from the external gas supply source via thepipe 42, into thegas chamber 8. - The
movable member 10 engages with ahole 11, which is so formed in theframe 40 at the back of thebarrel 2 as to extend in the direction along thebarrel 2, so that it can move in the direction toward theloading chamber 4 and in the opposite direction apart from theloading chamber 4. With respect to thatmovable member 10, moreover, the gasflow control mechanism 50 is so arranged movably in the direction along thebarrel 2 while being partially inserted in themovable member 10. To thismovable member 10, on the other hand, there is connected adrive mechanism 15 for it. Thisdrive mechanism 15 is constructed to include a movingmember 16 engaging mechanically with themovable member 10, and acoil spring 43 extending to the outside from ahole 17 opened in the rear end portion of the movingmember 16. An engagingstep 18 is formed on the lower portion of the movingmember 16. - In connection with the
drive mechanism 15, in the portion of theframe 40 below thehole 11, there is disposed a bottomedcylindrical guide 44, which extends in the direction along thebarrel 2. Astem 45 is disposed at the back of the bottomedcylindrical guide 44. In the bottom of this bottomedcylindrical guide 44, there is formed a throughhole 46, into which thepiston portion 35 b of thecontrol valve 35 is movably inserted. Thestem 45 protrudes from the rear side portion in theframe 40 toward the bottomedcylindrical guide 44. - The moving
member 16 constructing thedrive mechanism 15 is inserted from its front end side into the bottomedcylindrical guide 44. Moreover, thecoil spring 43 constructing thedrive mechanism 15 is wound on thestem 45 formed at theframe 40 and has a portion inserted in thehole 17 formed in the movingmember 16. As a result, thecoil spring 43 is guided by the bottomedcylindrical guide 44 to apply such a biasing force to the movingmember 16 as to move forward together with themovable member 10. - The
movable member 10 includes acylindrical portion 12 forming its front side portion, and a bottomedcylindrical portion 13 formed to extend to thecylindrical portion 12. Thiscylindrical portion 12 formed such that the diameter of its forming internal space is made larger than that of the internal space formed by the bottomedcylindrical portion 13, and is provided with afront end portion 12 a made relatively thicker. The bottom portion of the bottomedcylindrical portion 13 forms a firstpressure receiving portion 14, on which the gas pressure from thegas chamber 8 is caused to act selectively. In the bottom portion of the bottomedcylindrical portion 13 having such firstpressure receiving portion 14, there is formed a housing portion, in which there are arranged apiston plunger 20 and acoil spring 21 for applying a biasing force on the former. The front end face of thepiston plunger 20 forms a secondpressure receiving portion 22, to which the gas pressure from thegas chamber 8 is selectively applied. In short, themovable member 10 is provided with the firstpressure receiving portion 14 and the secondpressure receiving portion 22 formed on thepiston plunger 20. - The gas
flow control mechanism 50, as arranged movably in themovable member 10, is provided with afirst gas passage 51, a second agas passage 52, and a gaspassage forming portion 55 forming aconnection passage 53 for connecting thefirst gas passage 51 and thesecond gas passage 52. And, the gasflow control mechanism 50 is biased in the direction toward the bottom of the bottomedcylindrical portion 13 by acoil spring 47, which is arranged between the portion in the gaspassage forming portion 55 forming thesecond gas passage 52 and thefront end 12 a in thecylindrical portion 12 of themovable member 10. - The
first gas passage 51 in the gaspassage forming portion 55 is extended from theconnection passage 53 toward theloading chamber 4 and is opened to theloading chamber 4. On the other hand, thesecond gas passage 52 in the gaspassage forming portion 55 is extended from theconnection passage 53 toward the secondpressure receiving portion 22 and is opened to the first and secondpressure receiving portions passage forming portion 55 has its portion forming thesecond gas passage 52 inserted slidably in thehole 11 so that it can move in the direction along the moving direction of themovable member 10, i.e., in the direction along thebarrel 2. On that portion in the gaspassage forming portion 55 to form thesecond gas passage 52, there is mounted anannular seal member 56, which is made of an elastic member. Thisannular seal member 56 abuts against the cylindrical inner wall of the bottomedcylindrical portion 13 to seal up the clearance between that cylindrical inner wall and the outer circumference of that portion in the gaspassage forming portion 55, which forms thesecond gas passage 52. - Moreover, the gas
flow control mechanism 50 is provided with amovable valve 60 including acurrent plate portion 57 extended in thefirst gas passage 51, and avalve function portion 58 disposed on the rear end side of thecurrent plate portion 57 and arranged in theconnection passage 53. Thecurrent plate portion 57 is constructed by mutually connecting a plurality of current plates for uniforming the flow of the gas through thefirst gas passage 51. Acoil spring 61 is engaged with the rear side of thevalve function portion 58. Themovable valve 60 thus provided with thecurrent plate portion 57 and thevalve function portion 58 opens/closes thefirst gas passage 51 and thesecond gas passage 52 and is biased by thecoil spring 61 in the direction toward theloading chamber 4. - The
trigger 30 is turnably attached through apin 65 to theframe 40. Thetrigger 30 engages at its upper end side with acoil spring 66 arranged in theframe 40, so that it takes an operation starting position, as shown in FIG. 1, when thecoil spring 66 takes the longest state, for example. On the rear side of thetrigger 30, there is arranged a plate-shapedportion 68, which is selectively connected to the movingmember 16 through aconnection member 67. The plate-shapedportion 68 is turnably attached to thetrigger 30 through apin 69 and is biased in the direction to protrude to the outside from the rear end of thetrigger 30 by the spring member (although not shown) wound on thepin 69. - The
connection member 67 is provided with afront abutment portion 67 a for abutting selectively against the plate-shapedportion 68, and arear abutment portion 67 b for abutting selectively against the engagingstep 18 formed on the movingmember 16. Theconnection member 67 is further provided at its central portion with aslot 67 c, in which apin 70 mounted in theframe 40 is inserted. To the front side of theconnection member 67, there is connected to the other end of acoil spring 71, one end of which is connected to theframe 40. Thiscoil spring 71 applies such a biasing force to theconnection member 67 as turns it in the counter-clockwise direction, as seen in FIG. 1. Therefore, theconnection member 67 can be displaced within such a range by the biasing force of thecoil spring 71 as is defined by theslot 67 c having thepin 70 inserted therein. Although not shown, theframe 40 is provided with a stopper member for regulating the displacement of theconnection member 67. - In the embodiment of the toy gun thus constructed according to any of claims1 to 5, when the
trigger 30 takes the operation starting position, as shown in FIG. 1, thecontrol valve 35 is caused by the biasing force of thecoil spring 36 to take the position, at which it closes thegas outlet passage 34 to block the gas flow from thegas chamber 8 to thegas outlet passage 34, thereby to keep thelock member 38 at the lower position. Moreover, the plate-shapedportion 68 comes upward into abutment against thefront abutment portion 67 a of theconnection member 67 thereby to regulate the turn of theconnection member 67 according to the biasing force of thecoil spring 71. - At this time, the
connection member 67 brings itsrear abutment portion 67 b into abutment against the engagingstep 18 formed on the movingmember 16, so that the movingmember 16 may take a reference position, at which themovable member 10 is at the back of the upper end portion of thelock member 38 to take the lower position, and may keep an initial position, at which the front end of the movingmember 16 is slightly inserted into the bottomedcylindrical guide 44. When themovable member 10 takes such reference position, thepiston plunger 20 takes a forward position according to the biasing force of thecoil spring 21, and abuts against the rear end of the gaspassage forming portion 55 in the gasflow control mechanism 50. With the state in which the opening of thesecond gas passage 52 is closed by the secondpressure receiving portion 22, therefore, the gaspassage forming portion 55 is caused to keep the position slightly spaced from the firstpressure receiving portion 14. The gaspassage forming portion 55 thus placed at the position slightly spaced from the firstpressure receiving portion 14 positions its portion forming thefirst gas passage 51, above theupper opening 34 a of thegas outlet passage 34. - When the
movable member 10 takes the reference position, moreover, themovable valve 60 of the gasflow control mechanism 50 takes the forward position according to the biasing force of thecoil spring 61. As a result, thevalve function portion 58 in themovable valve 60 takes the position, at which it brings thefirst gas passage 51 into the closed state to block the communication between itself and theconnection passage 53, and at which it brings thesecond gas passage 52 into the open state to communicate with theconnection passage 53. Accordingly, thecurrent plate portion 57 of themovable valve 60 takes the position, at which its leading end is protruded from thefirst gas passage 51 into theinlet position 4a of theloading chamber 4. The paint bullet P having dropped by its own weight from themagazine 5 into theloading chamber 4 is positioned at theinlet position 4 a of theloading chamber 4 by the abutment against the leading end of thecurrent plate portion 57 from the rear side and by the abutments against the pairedsmall protrusions 32 from the left and right sides. - When the paint bullet P is thus positioned at the
inlet position 4a of theloading chamber 4, thetrigger 30 is pulled to turn on thepin 65 while compressing thecoil spring 66 so that it goes from the operation starting position, as shown in FIG. 1, to an operation completing position, as shown in FIG. 2. Accordingly, theconnection member 67 engaging with thetrigger 30 through the plate-shapedportion 68 is turned in the direction against the biasing force of thecoil spring 71. As a result, therear abutment portion 67 b of theconnection member 67 comes out of engagement with theengagement step 18 formed on the movingmember 16, so that the movingmember 16 starts its forward movement according to the biasing force of thecoil spring 43. The movingmember 16 thus moving forward moves (or advances) themovable member 10 connected mechanically thereto toward theloading chamber 4 while thefront end 12 a of thecylindrical portion 12 being caused to pass over thelock member 38 taking the lower position, thereby to drive themovable member 10. And, the movingmember 16 proceeds in the bottomedcylindrical guide 44 toward thecontrol valve 35. - As the
movable member 10 advances, the gasflow control mechanism 50 closes thebullet discharge port 5 a of themagazine 5 with that portion of the gaspassage forming portion 55, which forms thefirst gas passage 51, and transfers the paint bullet P in abutment against thecurrent plate portion 57 of themovable valve 60, in theloading chamber 4 from theinlet position 4a to the loading position 4 b while riding over thesmall protrusions 32. - The advancing
movable member 10 stops its movement toward theloading chamber 4 when thefront end 12 a of thecylindrical portion 12 abuts against theabutment portion 72 formed at theframe 40, as shown in FIG. 3. At this time, the movingmember 16 collides against thepiston portion 35 b of thecontrol valve 35 from the rear side thereby to move thecontrol valve 35 in the direction against the biasing force of thecoil spring 36. As a result, thegas outlet passage 34 is transferred from the closed state, in which its communication with thegas chamber 8 is blocked by thevalve function portion 35 a of thecontrol valve 35, to the open state, in which it communicates with thegas chamber 8. In accordance with this movement of thecontrol valve 35 from the closed state to the open state of thegas outlet passage 34, thelock member 38 is released from the state, in which it is kept at the lower position by thepiston portion 35 b, so that it is lifted by the biasing force of thecoil spring 39 from the lower position to an upper position, at which its upper end abuts against the lower portion of themovable member 10. - The moving
member 16 having stopped themovable member 10 by bringing it into abutment against anabutment portion 72 formed on theframe 40 abuts at its front end against thepiston portion 35 b of thecontrol valve 35 at the position, it is spaced by a predetermined distance from the throughhole 46 in the bottomedcylindrical guide portion 44, to hold thecontrol valve 35 at a position to open thegas outlet passage 34 thereby to establish the gas flow from thegas chamber 8 to thegas outlet passage 34. As a result, thepiston portion 35 b abuts against the lower end of thelock member 38 taking the upper position, from its rear side. - When the
movable member 10 stops its movement toward theloading chamber 4, moreover, the paint bullet P transferred by the gasflow control mechanism 50 comes into abutment against theannular seal member 33 disposed in theloading chamber 4, and is positioned at the loading position 4 b in theloading chamber 4 by theannular seal member 33 and the gasflow control mechanism 50. The paint bullet P abutting against theannular seal member 33 applies a pushing force in the direction against the biasing force of thecoil spring 61 to themovable valve 60, and applies a pushing force in the direction against the biasing force of thecoil spring 21 for bringing thepiston plunger 20 into the forward position, to the gaspassage forming portion 55. - As a result, the
movable valve 60 takes the position, at which thefirst gas passage 51 is opened by itsvalve function portion 58 to communicate with theconnection passage 53, and at which thesecond gas passage 52 is closed to block the communication with theconnection passage 53, as shown in FIG. 3. Moreover, the gaspassage forming portion 55 causes thepiston plunger 20 to take a retracted position against the biasing force of thecoil spring 21 thereby to bring its rear end into abutment against the first and secondpressure receiving portions second gas passage 52 is continuously closed by the secondpressure receiving portion 22. Moreover, theconnection passage 53 in the gaspassage forming portion 55 is caused to communicate with thegas outlet passage 34 through theupper opening 34 a. - On the other hand, the
connection member 67 having therear abutment portion 67 b disengaged from the engagingstep 18 formed on the movingmember 16 is displaced by the biasing force of thecoil spring 71 so that it is regulated by the not-shown stopper member at the position, where it contacts with neither the plate-shapedportion 68 nor the movingmember 16, as shown in FIG. 3. - The
gas outlet passage 34, as opened by thecontrol valve 35, is supplied from thegas chamber 8 with the gas, which is introduced from the external gas supply source. Specifically, thegas chamber 8, thecontrol valve 35, thecoil spring 36, thelock member 38, thecoil spring 39 and so on construct a gas supply controller for supplying thegas outlet passage 34 with the gas as themovable member 10 moves toward theloading chamber 4. And, the gas, as supplied to thegas outlet passage 34 from thegas chamber 8, abruptly flows into theconnection passage 53, which is made to communicate with thegas outlet passage 34, in the gasflow control mechanism 50. The gas thus having abruptly flown into theconnection passage 53 is guided to the loading position 4 b of theloading chamber 4 through thefirst gas passage 51 opened by thevalve function portion 58 of themovable valve 60. As a result, the high gas pressure from thegas chamber 8 acts on the paint bullet P abutting against theannular seal member 33 so that the paint bullet P is so moved by the action of the gas pressure as to ride over theannular seal member 33 from theloading chamber 4 to the front of theannular seal member 33, as shown in FIG. 4. - The paint bullet P, as moved from the
loading chamber 4 into thebarrel 2 located in the front, is accelerated toward the leading end of thebarrel 2 while receiving the gas pressure from the back. Thus, the paint bullet P is moved from theloading chamber 4 into thebarrel 2 on the front side of the former and is accelerated in thebarrel 2 toward the leading end of the same. Accordingly as the space in thebarrel 2 at the back of the paint bullet P abruptly expands, the gas pressure in theloading chamber 4 and in thefirst gas passage 51 of the gasflow control mechanism 50 drops. As the gas pressure in thefirst gas passage 51 thus drops, themovable valve 60 is advanced in the gasflow control mechanism 50 by the biasing force of thecoil spring 61. As a result, by thevalve function portion 58 of themovable valve 60, thefirst gas passage 51 is closed to block its communication with theconnection passage 53, and thesecond gas passage 52 is opened to communicate with theconnection passage 53, as shown in FIG. 4. As the gas pressure in thefirst gas passage 51 thus drops, the paint bullet P having moved in thebarrel 2 is shot from the leading end of thebarrel 2 till themovable valve 60 is caused by itsvalve function portion 58 to take the position, at which thefirst gas passage 51 is closed and at which thesecond gas passage 52 is opened. - In the gas
flow control mechanism 50, as has been described above, thefirst gas passage 51 is closed, but thesecond gas passage 52 is opened. As a result, thegas outlet passage 34 is held in the state to communicate with thesecond gas passage 52 through theconnection passage 53. Then, the gas from thegas chamber 8 through theconnection passage 53 and thesecond gas passage 52 applies its high pressure to the secondpressure receiving portion 22 for closing the opening of thesecond gas passage 52. This high gas pressure to act on the secondpressure receiving portion 22 retracts themovable member 10 against the biasing force of thecoil spring 43, as accompanied by the movingmember 16 connected mechanically to themovable member 10. As a result, apressure chamber 80 of a variable capacity is formed between the first and secondpressure receiving portions flow control mechanism 50, as shown in FIG. 5, the gas from thegas chamber 8 through theconnection passage 53 and thesecond gas passage 52 applies its high gas pressure not only to the secondpressure receiving portion 22 but also the firstpressure receiving portion 14. Thus, themovable member 10 to receive the high pressure of the gas through thesecond gas passage 52 at the first and secondpressure receiving portions pressure chamber 80. - At this time, the
piston plunger 20 having the secondpressure receiving portion 22 is enabled to move from the retracted position to the forward position according to the biasing force of thecoil spring 21, because thepressure chamber 80 of the variable capacity is formed between the secondpressure receiving portion 22 and the gasflow control mechanism 50. - According to the retraction of the
movable member 10 by the action of the gas pressure, the movingmember 16 connected mechanically to themovable member 10 is spaced backward from thepiston portion 35 b of thecontrol valve 35, as shown in FIG. 5. As a result, thecontrol valve 35 starts its movement according to the biasing force of thecoil spring 36, but this movement is instantly stopped by the abutment of thepiston portion 35 b of thecontrol valve 35 from the front side against the lower end of thelock member 38 taking the upper position. As a result, there is continuously kept the state, in which thevalve function portion 35 a of thecontrol valve 35 holds thegas outlet passage 34 in the open state. - The
movable member 10, as caused to continue the retraction together with the movingmember 16 by the action of the gas pressure from thegas chamber 8, brings the movingmember 16 into abutment against therear abutment portion 67 b of theconnection member 67, as shown in FIG. 6, and pushes thelock member 38 taking the upper position in the direction against the biasing force of thecoil spring 39 by thefront end 12 a of thecylindrical portion 12 thereby to move the same from the upper position to the lower position. - When the
lock member 38 is moved from the upper position to the lower position, thecontrol valve 35 is moved by the biasing force of thecoil spring 36 to return from the state, in which thevalve function portion 35 a opens thegas outlet passage 34 to communicate with thegas chamber 8, to the state, in which thevalve function portion 35 a closes thegas outlet passage 34 to block the communication with thegas chamber 8. As a result, the flow of the gas from thegas chamber 8 into thegas inlet passage 34 is stopped. Thepiston portion 35 b of thecontrol valve 35 having closed thegas outlet passage 34 abuts against the lower end of thelock member 38 having reached the lower position, from the upper side, thereby to keep thelock member 38 at the lower position. - Even if the
gas outlet passage 34 is thus closed by thecontrol valve 35 thereby to stop the supply of the gas from thegas chamber 8 to thepressure chamber 80 of the variable capacity, themovable member 10 continues its further retraction by its inertia. Just before themovable member 10 moving together with the movingmember 16 reaches the most retracted position, at which it stops the retraction while abutting against the rear end of theframe 40, as shown in FIG. 7, that portion of the gaspassage forming portion 55, which forms thesecond gas passage 52, comes out of engagement with the bottomedcylindrical portion 13 so that the gasflow control mechanism 50 is retracted as a whole together with themovable member 10 moving toward the most retracted position. - As a result, the sealing property of the
pressure chamber 80 by theannular seal member 56 is lost so that the gas residing in thepressure chamber 80 and the gas residing in thesecond gas passage 52 are released to the atmosphere through aclearance 81 formed between thecylindrical portion 12 and that portion of the gaspassage forming portion 55, which forms thesecond gas passage 52. The release of the gas residing in thesecond gas passage 52 to the atmosphere is also made through theconnection passage 53, which is released from the mutual communication with thegas outlet passage 34. Moreover, that portion of the gaspassage forming portion 55, which forms thefirst gas passage 51, is positioned above theupper opening 34 a of thegas outlet passage 34. - Thus, the
movable member 10, which has reached the most retracted position after the gas residing in the gasflow control mechanism 50 and the gas residing in themovable member 10 were released to the atmosphere, instantly turns together with the movingmember 16 or the like to the state, in which it is advanced to the reference position by the biasing force of thecoil spring 43, and the gasflow control mechanism 50 is retracted by the biasing force of thecoil spring 47. The retraction of the gasflow control mechanism 50 by the biasing force of thecoil spring 47 is stopped, as shown in FIG. 8, by the abutment of the rear end of the gaspassage forming portion 55 against thepiston plunger 20 taking the forward position. In this situation, the opening of thesecond gas passage 52 in the gaspassage forming portion 55 is closed by the secondpressure receiving portion 22, and that portion of the gaspassage forming portion 55, which forms thefirst gas passage 51, is positioned at the back of theloading chamber 4, thereby to cause thebullet discharge port 5 a of themagazine 5 to communicate with theinlet position 4 a in theloading chamber 4. As a result, the paint bullet P drops from themagazine 5 into theinlet position 4 a in theloading chamber 4. The paint bullet P having dropped to theinlet position 4 a is positioned by thecurrent plate portion 57 in themovable valve 60 abutting the back of the paint bullet P and by the pairedsmall protrusions 32. - The advance of the moving
member 16 by the biasing force of thecoil spring 43 is stopped, as shown in FIG. 8, when the movingmember 16 is regulated in position by the connectingmember 67 after the engagingstep 18 formed on the movingmember 16 abutted against therear abutment portion 67 b of theconnection member 67 from the rear side and advanced theconnection member 67 within the range defined by theslot 67 c and thepin 70. When the movingmember 16 is regulated in position by theconnection member 67, themovable member 10 is placed at the reference position which is at the back of the upper end portion of thelock member 38 taking the lower position, and the movingmember 16 is placed at the initial position, in which its front end portion is slightly inserted into the bottomedcylindrical guide portion 44. Moreover, theconnection member 67 for regulating the position of the movingmember 16 pushes the plate-shapedportion 68 formed on thetrigger 30, with itsfront abutment portion 67 a from the rear side thereby to turn the plate-shapedportion 68 in the direction against the biasing force of the not-shown spring member. - When the
trigger 30 is released in this state from its pulling operation, thecoil spring 66 returns from the compressed state to the longest state. As shown in FIG. 1, thetrigger 30 is accordingly caused to return to the operation starting position, and the plate-shapedportion 68 displaces theconnection member 67 while being turned in the direction according to the biasing force of the spring member acting thereon, and abuts against thefront abutment portion 67 a of theconnection member 67 from the lower side thereby to regulate the turn of theconnection member 67 in the direction according to the biasing force of thecoil spring 71. - Thus, the
connection member 67 is held in the state to regulate the position of the movingmember 16, by bringing the plate-shapedportion 68 into abutment from its lower side against thefront abutment portion 67 a while being regulated in the turn in the direction according to the biasing force of thecoil spring 71, and by bringing therear abutment portion 67 b into abutment against the engagingstep 18 formed at the movingmember 16 taking the initial position. When thetrigger 30 taking the operation starting position is pulled again in that state, the paint bullet P is shot from theloading chamber 4, as has been described hereinbefore, and is subsequently supplied to theloading chamber 4. - The embodiment of the toy gun provided with the gas
flow control mechanism 50, as has been described hereinbefore, is freed from the following situation. When the paint bullet P is to be shot from theloading chamber 4, thesecond gas passage 52 in the gasflow control mechanism 50 is closed so that the gas pressure from thegas chamber 8 leading to thegas outlet passage 34 is not guided to thesecond gas passage 52. Therefore, there is reliably avoided the situation, in which the gas pressure to be used for shooting the paint bullet P from theloading chamber 4 might otherwise be partially lost. Therefore, the gas pressure from thegas chamber 8 is effectively applied to the paint bullet P charged in theloading chamber 4 so that the paint bullet P can be reliably shot from theloading chamber 4 even in case the gas to be supplied from thegas chamber 8 to thegas outlet passage 34 is exemplified by a low-pressure gas such as a liquefied gas. - Thus, the toy gun according to the invention specified in the Claims, as exemplified by the toy gun according to the invention of claim6, may also be constructed by providing an
accumulation chamber 8′ to be charged with a low-pressure liquefied gas in theframe 40, in place of thegas chamber 8 in the embodiment shown in FIG. 1 to FIG. 8, so that the gas supply control means may include theaccumulation chamber 8′ to be charged with the low-pressure liquefied gas, in place of thegas chamber 8. - Moreover, the gas
flow control mechanism 50 is constructed to include the gaspassage forming portion 55 arranged movably in themovable member 10, and themovable valve 60 arranged movably in the gaspassage forming portion 55, and is not assembled directly with theframe 40. Therefore, the gasflow control mechanism 50 makes the toy gun having itself, simple in construction and easy in assembly. - In the toy gun thus constructed according to the invention, as apparent from the gas supply controller is held in the gas supply state to supply the gas to the gas outlet passage, accordingly as the movable member moves in the first direction to the loading chamber in accordance with the operation of the trigger, and the gas thus supplied to the gas outlet passage is guided to the loading chamber through such the first gas passage in the gas flow control mechanism to open the first gas passage and to close the second gas passage so that it is used for shooting the bullet charged in the loading chamber. This movement of the bullet from the loading chamber lowers the gas pressure in the gas flow control mechanism. By the action of the gas flow control mechanism accompanying the lowering of the gas pressure, the first gas passage is changed from the open state to the closed state, and the second gas passage is changed from the closed state to the open state. As a result, the gas, as fed to the gas outlet passage by the movement of the movable member in the first direction to the loading chamber, acts the pressure receiving portion formed on the movable member through the second gas passage so that the movable member is moved in the second direction apart from the loading chamber, to take the state for making preparations for supplying the loading chamber with the bullet.
- In the gas flow control mechanism, therefore, when the gas fed to the gas outlet passage is fed to the loading chamber through the first gas passage, the second gas passage is closed to prevent the situation, in which the gas flows into the second gas passage. As a result, the situation, in which the gas pressure to be used for shooting the bullet charged in the loading chamber is partially lost, is reliably avoided to use the gas supplied to the gas outlet passage, effectively for shooting the bullet. As a result, not only in case the bullet to be supplied from the magazine to the loading chamber is exemplified by the paint bullet having a relatively heavy weight but also in case the low-pressure gas is supplied from the gas supply means to the gas outlet passage, it is possible to shoot the paint bullet reliably from the loading chamber.
Claims (6)
1. A toy gun comprising:
a frame including a barrel, a loading chamber formed in said barrel, a magazine for holding bullets to be charged in said loading chamber, and a trigger;
a movable member arranged with a pressure receiving portion in said frame and made movable in a first direction toward said loading chamber and in a second direction opposed to the first direction;
a drive mechanism for moving said movable member in said first direction in response to the operation of said trigger;
a gas supply controller connected to a gas outlet passage for taking a gas supply state, in which gas is supplied, as said movable member moves in said first direction; and
a gas flow control mechanism arranged movably with respect to said movable member and forming a first gas passage for guiding the gas into said loading chamber and a second gas passage for guiding the gas to said pressure receiving portion, whereby, for a period in which said gas supply controller takes said gas supply state as said movable member moves in said first direction, said gas flow control mechanism transfers from a first state, in which said first gas passage is opened whereas said second gas passage is closed to supply the gas obtained in said gas outlet passage to said loading chamber through said first gas passage, to a second state, in which said first gas passage is closed whereas said second gas passage is opened to apply the gas obtained in said gas outlet passage to said pressure receiving portion through said second gas passage, so that said movable member is moved in said second direction thereby to make preparations for supplying the ballet from said magazine to said loading chamber.
2. A toy gun according to claim 1 ,
wherein the bullets to be held in the magazine are paint containing bullets for discharging paint when crushed.
3. A toy gun according to claim 1 ,
wherein the movable member moves in the second direction while forming a variable capacity pressure chamber between the pressure receiving portion and the gas flow control mechanism.
4. A toy gun according to claim 1 ,
wherein the gas flow control mechanism is constructed to include: a gas passage forming member for forming the first gas passage and the second gas passage; and a movable valve arranged movably in said gas passage forming member for taking selectively a position to open said first gas passage and to close said second gas passage and a position to close said first gas passage and to open said second gas passage.
5. A toy gun according to claim 1 ,
wherein the gas supply controller includes: a gas chamber, into which the gas from the outside is introduced; and a control valve for taking, selectively according to the position of the movable member, a closed state to block the gas flow from said gas chamber to the gas outlet passage and an open state to establish the gas flow from said gas chamber to said gas outlet passage.
6. A toy gun according to claim 1 ,
wherein said gas supply controller includes: an accumulation chamber for reserving the gas charged; and a control valve for taking, selectively according to the position of the movable member, a closed state to block the gas flow from said accumulation chamber to the gas outlet passage and an open state to establish the gas flow from said accumulation chamber to said gas outlet passage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-315558 | 2002-10-30 | ||
JP2002315558A JP3686402B2 (en) | 2002-10-30 | 2002-10-30 | Toy gun |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040089280A1 true US20040089280A1 (en) | 2004-05-13 |
Family
ID=32089525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/694,054 Abandoned US20040089280A1 (en) | 2002-10-30 | 2003-10-28 | Toy gun |
Country Status (11)
Country | Link |
---|---|
US (1) | US20040089280A1 (en) |
EP (1) | EP1416244B1 (en) |
JP (1) | JP3686402B2 (en) |
KR (1) | KR100535174B1 (en) |
CN (1) | CN1499167A (en) |
AT (1) | ATE348309T1 (en) |
AU (1) | AU2003257705B2 (en) |
CA (1) | CA2447419C (en) |
DE (1) | DE60310341T2 (en) |
HK (1) | HK1063838A1 (en) |
TW (1) | TWI225920B (en) |
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US20040255923A1 (en) * | 2003-11-28 | 2004-12-23 | Martin Carnall | Mechanism for gas operated gun |
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US20050115551A1 (en) * | 2003-11-28 | 2005-06-02 | Martin Carnall | Mechanism for gas operated gun |
US20060169265A1 (en) * | 2005-02-03 | 2006-08-03 | Lai Bao S | Shooting structure of a paint bullet gun |
US20060207585A1 (en) * | 2005-03-18 | 2006-09-21 | Chu-Min Liang | Bullet delivery device for air guns |
US7121271B1 (en) | 2002-03-12 | 2006-10-17 | Joseph R Arndt | Anti-pinch bolt |
US20070131210A1 (en) * | 2005-12-12 | 2007-06-14 | Lai Bao S | Valve structure of a paint bullet gun |
US20070181116A1 (en) * | 2006-02-06 | 2007-08-09 | Wilson Wei | Air gun |
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US20090133681A1 (en) * | 2007-11-26 | 2009-05-28 | Hsin-Cheng Yeh | Multi-purposes mechanism for shooting apparatus |
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Also Published As
Publication number | Publication date |
---|---|
ATE348309T1 (en) | 2007-01-15 |
DE60310341T2 (en) | 2007-05-24 |
JP2004150690A (en) | 2004-05-27 |
AU2003257705A1 (en) | 2004-05-20 |
EP1416244B1 (en) | 2006-12-13 |
AU2003257705B2 (en) | 2005-04-21 |
TW200413691A (en) | 2004-08-01 |
KR20040038664A (en) | 2004-05-08 |
DE60310341D1 (en) | 2007-01-25 |
JP3686402B2 (en) | 2005-08-24 |
KR100535174B1 (en) | 2005-12-08 |
HK1063838A1 (en) | 2005-01-14 |
CA2447419C (en) | 2006-10-03 |
EP1416244A1 (en) | 2004-05-06 |
CA2447419A1 (en) | 2004-04-30 |
CN1499167A (en) | 2004-05-26 |
TWI225920B (en) | 2005-01-01 |
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