EP2618096B1 - Befestigungsvorrichtung für Gaspatronen einer Spielzeugwaffe - Google Patents

Befestigungsvorrichtung für Gaspatronen einer Spielzeugwaffe Download PDF

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Publication number
EP2618096B1
EP2618096B1 EP20120000323 EP12000323A EP2618096B1 EP 2618096 B1 EP2618096 B1 EP 2618096B1 EP 20120000323 EP20120000323 EP 20120000323 EP 12000323 A EP12000323 A EP 12000323A EP 2618096 B1 EP2618096 B1 EP 2618096B1
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EP
European Patent Office
Prior art keywords
gas
bomb
valve
air chamber
toy gun
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.)
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Application number
EP20120000323
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English (en)
French (fr)
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EP2618096A1 (de
Inventor
Tetsuo Maeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maruzen Co Ltd
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Maruzen Co Ltd
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Publication date
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Priority to EP20120000323 priority Critical patent/EP2618096B1/de
Publication of EP2618096A1 publication Critical patent/EP2618096A1/de
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Publication of EP2618096B1 publication Critical patent/EP2618096B1/de
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    • 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

Definitions

  • the present invention relates to a toy gun to which a gas cartridge can be attached and which fires bullets by pressure from compressed gas in the gas cartridge, and relates to an attachment device for attaching a gas cartridge to the toy gun.
  • Toy guns to which a gas cartridge can be attached and which fire bullets by pressure from compressed gas in the gas cartridge have conventionally become widespread.
  • An example of such toy guns is the toy gun described in JP-Utility Model(UM)-A-Hei 7(1995)-41292 .
  • one bomb 22 (gas cartridge) is attached to this toy gun.
  • the bomb 22 houses compressed carbon dioxide gas and the air chamber 24 of the toy gun is filled with the carbon dioxide gas.
  • a user of the toy gun pulls a cocking head 34 backward to position a piston 51 rearward. The user thereafter advances and returns the cocking head 34 to the original position.
  • the piston 51 advances.
  • air in a cylinder 44 is let out into a barrel 15 and a bullet 12 in the barrel 15 is shot out of the muzzle 16.
  • a hammer bar 31 advances and hits a valve 26 to break the discontinuation between the air chamber 24 and a hammer bar housing chamber 25 by the valve 26.
  • gas in the air chamber 24 is let out into the hammer bar housing chamber 25 to push the hammer bar 31 backward.
  • the cocking head 34 is thereby retreated to position the piston 51 rearward.
  • the cocking head 34 automatically advances and retreats.
  • the cocking head 34 automatically advances and retreats and a large number of bullets are fired in a short time like an actual gun. For this reason, the toy gun described in JP-UM-A-Hei 7-41292 consumes a large quantity of compressed gas.
  • the bomb 22 could be increased in size. However, this makes the bomb 22 bothersome to carry.
  • US 2007/0062510 A1 discloses a paintball marker using a gas combination chamber having multiple inputs for sealably connecting to multiple gas supply canisters. Multiple seals and piercing needles are provided to release the compressed gas from the separate canisters into the combination chamber. A single release valve is then provided for launching the paintball marker using the combined gas supply. A body including an alignment chamber and a screw on back cover is provided for aligning the canisters in position and then generating the pressure for sealing and piercing the multiple canisters.
  • the multiple canister connection provides an increased gas capacity over known markers while still using the low supply capacity of the commercially available gas canisters.
  • the simple guided alignment provided by the marker body and the screw on pressure cap provide for quick field replacement of the canisters in the rough playing environment associated with the game of paintball.
  • DE 101 16 010 A1 discloses a pressure supply device for a compressed gas-driven gun device, comprising at least one reservoir for a propellant, existing at least partly in the liquid phase in the at least one reservoir, further comprising withdrawing means, for withdrawing the propellant through a withdrawing opening in the at least one reservoir.
  • the at least one reservoir and the withdrawal means are arranged within the pressure supply device, in the in-use position thereof, such that a withdrawal of the liquid phase of the propellant is possible.
  • a toy gun not covered by the set of claims includes: a bullet holding portion that holds bullets; an air chamber body that forms an air chamber; a gas discharge portion that guides compressed gas in the air chamber to bullets held by the bullet holding portion; a valve that establishes or breaks communication between the air chamber and the gas discharge portion; an operation portion that opens/closes the valve; multiple gas cartridge attachment portions to which a gas cartridge for supplying compressed gas is attached; a first valve portion provided in each of the gas cartridge attachment portions; and a gas introduction portion that guides compressed gas from a gas cartridge attached to each the gas cartridge attachment portion into the air chamber.
  • the attachment device of the invention includes: multiple gas cartridge attachment portions to which a gas cartridge for supplying compressed gas is attached; a unit attaching portion that can be freely attached to and detached from a unit attached portion provided in a toy gun and guides compressed gas supplied from a gas cartridge attached to each the gas cartridge attachment portion into the toy gun; a first valve portion provided in each of the gas cartridge attachment portions; and a second valve portion provided in the unit attaching portion.
  • the attachment device of the invention includes: an air chamber body that can be freely attached to and detached from a toy gun having a bullet holding portion for holding bullets and forms an air chamber; a gas discharge portion that is configured to be provided in the toy gun and configured to guide compressed gas in the air chamber to bullets held by the bullet holding portion; a valve that establishes or breaks communication with the air chamber; multiple gas cartridge attachment portions to which a gas cartridge for supplying compressed gas is attached; a first valve portion provided in each of the gas cartridge attachment portions; and a gas introduction portion that guides compressed gas from a gas cartridge attached to each the gas cartridge attachment portion into the air chamber.
  • each the gas cartridge attachment portion can be closed with a first valve portion.
  • multiple small-sized gas cartridges can be used to use the toy gun. Therefore, it is possible to use the toy gun configured to fire bullets by compressed gas without the replacement of a gas cartridge for a long time.
  • the portability of the gas cartridge is enhanced. Since the gas cartridge can be reduced in size, the toy gun can be flexibly designed.
  • FIG. 1 is a left side view of a toy gun 101.
  • a gas bomb 102 gas cartridge
  • FIG. 1 is a left side view of a toy gun 101.
  • a gas bomb 102 gas cartridge
  • a user uses the toy gun 101, he/she holds a grip 104 with his/her palm, places his/her finger on a trigger 105, aims a muzzle 103 at an object to be shot (for example, a target), and pulls the trigger 105.
  • the trigger 105 is pulled, a bullet B is shot out of the muzzle 103 by the pressure of compressed gas filled in the gas bomb 102.
  • the side where the muzzle 103 is located will be designated as the front side of the toy gun 101 and the side where the grip 104 is located will be designated as the rear side of the toy gun 101.
  • FIG. 2 is a left sectional view illustrating the internal structure of the toy gun 101.
  • the area in FIG. 2 filled with compressed gas is filled with dots.
  • the toy gun 101 includes a frame 111, a magazine 112, a barrel 113, a bolt 121, an air chamber body 122, a valve 123, a bolt spring 124, and a valve spring 129.
  • the frame 111 forms part of the gun barrel and defines the front-rear direction of the toy gun 101.
  • the magazine 112 is extended downward from the bullet introduction port 190a (described later) provided in the air chamber body 122.
  • the magazine 112 is formed in the shape of a cylinder with only one end thereof open and is attached to and detached from the frame 111 with the closed end thereof positioned downward.
  • a magazine spring 112a and a magazine follower 112b are placed in the magazine 112.
  • the magazine spring 112a connects the closed end of the magazine 112 and the magazine follower 112b together.
  • bullets B are housed.
  • the bullets B in the magazine 112 are pushed up by the magazine spring 112a and fed from the bullet introduction port 190a into a passage 190 (described later).
  • the barrel 113 is extended in the front-rear direction of the gun barrel and is protruded from the frame 111 frontward of the toy gun 101.
  • the front end of the barrel 113 is the muzzle 103.
  • the rear end of the barrel 113 is coupled to the front side of the frame 111.
  • the barrel 113 may be housed in the frame 111.
  • the air chamber body 122 is housed in the frame 111.
  • the passage 190 is formed in the air chamber body 122.
  • the passage 190 is linearly extended from the rear end portion 103a of the barrel 113 located on the opposite side to the muzzle 103 in the front-rear direction of the gun barrel and communicates with an air chamber 126 (described later).
  • a bullet B fed from the magazine 112 to the bullet introduction port 190a is pushed up by the magazine follower 112b and positioned in the passage 190 and is held by the bullet holding portion 192.
  • An example of the bullet holding portion 192 is a minute recess formed in the upper surface of the internal space of the passage 190.
  • the air chamber 126 is formed.
  • the above-mentioned passage 190 is extended form the front side of the air chamber 126.
  • the rear side of the air chamber 126 is closed with a rear lid 122a.
  • a through hole 122b penetrating the rear lid in the front-rear direction of the gun barrel is formed.
  • a ring-shaped packing 122c is attached to around the through hole 122b in the front end face of the rear lid 122a.
  • the rear side of the through hole 122b is large in inside diameter and forms a fitting hole 122d.
  • the abutment portion 121e (described later) provided on the bolt 121 gets into the fitting hole 122d.
  • a gas introduction passage 122e is formed in the air chamber body 122.
  • the air chamber body 122 is in such a shape that it is protruded downward and is fit in the frame 111 and forms the gas introduction passage 122e.
  • the bolt 121 is housed in the frame 111.
  • the bolt 121 is cylindrical and is extended in the front-rear direction of the gun barrel.
  • the front side of the bolt 121 is an open end 121a.
  • the rear side of the bolt 121 is a closed end 121b.
  • a lever 121c is protruded upward from the upper surface of the bolt 121.
  • a part of the lever 121c is protruded upward from the frame 111.
  • a locking protrusion 121d is protruded downward from the lower surface of the rear side of the bolt 121.
  • the abutment portion 121e is protruded from the closed end 121b toward the internal space of the bolt 121.
  • the bolt 121 can be freely moved in the front-rear direction of the gun barrel.
  • the bolt 121 starts advancing and is caused to reciprocate between the pressing position 121A and the retreat position 121B by the bolt spring 124 and the pressure of compressed gas.
  • the retreat position 121B cited here refers to such a position of the bolt 121 that the abutment portion 121e is away from the sliding protrusion 123b (described later) of the valve 123 on the rear side of the toy gun 101.
  • FIG. 2 shows the bolt 121 as is positioned in the retreat position 121B.
  • the pressing position 121A refers to such a position of the bolt 121 that the abutment portion 121e is in contact with the sliding protrusion 123b of the valve 123 ahead of the retreat position 121B in the front-rear direction of the toy gun 101.
  • FIG. 3 shows the bolt 121 as is positioned in the pressing position 121A.
  • the bolt spring 124 is positioned between the outside surface of the closed end 121b of the bolt 121 and the inside surface 111b of the rear part of the frame 111.
  • the bolt spring 124 pushes the bolt 121 positioned in the retreat position 121B forward to the pressing position 121A.
  • the valve 123 is positioned between the air chamber 126 and the passage 190 and is placed in the air chamber 126.
  • a flange portion 123a and the sliding protrusion 123b are formed on the rear end side of the valve 123.
  • the flange portion 123a is radially protruded from the circumference of the valve 123.
  • the sliding protrusion 123b gets into the through hole 122b and is protruded to the fitting hole 122d side.
  • the valve 123 forms a straight passage 123c and an inclined passage 123d.
  • the straight passage 123c and the inclined passage 123d communicate with each other and compressed gas can pass therein.
  • the straight passage 123c is open in the front end face of the valve 123 and is extended in the front-rear direction of the gun barrel.
  • the inclined passage 123d is extended in a direction inclined from the straight passage 123c and is open between the flange portion 123a and the sliding protrusion 123b.
  • An O-ring 127 and a washer 128 are fit to the circumference of the valve 123 on the front end side.
  • the O-ring 127 is sandwiched between the washer 128 and the inner wall of the air chamber body 122.
  • the valve spring 129 is positioned between the washer 128 and the flange portion 123a and is so placed that the valve spring is wound around the valve 123.
  • the valve spring 129 pushes the washer 128 forward to press the O-ring 127 against the inner wall of the air chamber body 122.
  • the valve spring 129 presses the flange portion 123a against the packing 122c. As a result, communication between the passage 190 and the air chamber 126 is broken.
  • FIG. 3 is a left sectional view illustrating the internal structure of the toy gun 101 with the bolt 121 positioned in the pressing position 121A.
  • the bolt 121 advances and reaches the pressing position 121A, the circumferential portion of the air chamber body 122 on the rear side is fit in the open end 121a of the bolt 121.
  • the abutment portion 121e pushes forward the sliding protrusion 123b of the valve 123 protruded into the fitting hole 122d.
  • the valve 123 slides to the front side and the flange portion 123a is broken away from the packing 122c. Accordingly, communication between the passage 190 and the air chamber 126 is established.
  • the inclined passage 123d, straight passage 123c, and passage 190 comprises a gas discharge portion 194 for guiding compressed gas in the air chamber 126 to a bullet B held by the bullet holding portion 192.
  • the valve 123 establishes and breaks communication between the air chamber 126 and the gas discharge portion 194.
  • the compressed gas gets also into the gap S between the inner wall surface of the through hole 122b and the sliding protrusion 123b as indicated by arrows in FIG. 3 .
  • the compressed gas passes through the through hole 122b and pushes the abutment portion 121e backward.
  • the bolt 121 starts retreating and reaches the retreat position 121B.
  • the bolt 121 that has reached the retreat position 121B is pushed by the bolt spring 124 and advances again.
  • the bolt 121 reaches the pressing position 121A, the bolt pushes the sliding protrusion 123b of the valve 123 forward.
  • the bolt 121 makes reciprocating motion and repeats advance and retreat. While the bolt 121 makes one reciprocating motion, the bolt is abutted against and broken away from the valve 123 and thereby establishes and breaks communication between the passage 190 and the air chamber 126.
  • valve spring 129 pushes back the valve 123 backward. This slides the valve 123 backward and the flange portion 123a is brought into tight contact with the packing 122c. As a result, communication between the passage 190 and the air chamber 126 is broken. Thereafter, the air chamber 126 is filled therein with compressed gas supplied from the gas introduction passage 122e.
  • the toy gun 101 includes the trigger 105, a trigger spring 131, a bolt shear 132, and a bolt shear spring 133.
  • the trigger 105 is positioned ahead of the grip 104. (Refer to FIG. 1 .)
  • the trigger 105 is attached to the frame 111 so that the trigger can be freely rotated around a fulcrum 105a.
  • the trigger 105 includes a finger hooking portion 105d and a backward extended portion 105b.
  • the finger hooking portion 105d is extended downward from the fulcrum 105a.
  • the backward extended portion 105b is extended backward from the fulcrum 105a.
  • a bolt shear push-up portion 105c is protruded upward from the upper surface of the backward extended portion 105b.
  • the trigger spring 131 pushes the finger hooking portion 105d clockwise in FIG. 2 .
  • the bolt shear 132 is provided in a position sandwiched between the bolt shear push-up portion 105c located therebelow and the bolt 121 located thereabove.
  • the bolt shear 132 is attached to the frame 111 so that the bolt shear can be freely rotated around the axial center 132a thereof.
  • the bolt shear 132 includes a flat plate-like forward protruded portion 132b and a backward protruded portion 132c widened like a fan as laterally viewed.
  • the forward protruded portion 132b is protruded to ahead of the axial center 132a.
  • the backward protruded portion 132c is protruded to behind the axial center 132a.
  • a stopper portion 132d for stopping the locking protrusion 121d of the bolt 121 is provided above the backward protruded portion 132c.
  • the bolt shear spring 133 is abutted against the lower surface of the backward protruded portion 132c and rotates the bolt shear 132 counterclockwise in FIG. 2 to lift the stopper portion 132d upward.
  • the stopper portion 132d hooks on the locking protrusion 121d of the bolt 121 and prevents the advance of the bolt 121.
  • FIG. 2 the state of the trigger 105, trigger spring 131, bolt shear 132, and bolt shear spring 133 with the trigger 105 pulled backward is shown by alternate long and two short dashes line.
  • the trigger spring 131 pushes the finger hooking portion 105d clockwise in FIG. 2 and displaces the bolt shear push-up portion 105c downward.
  • the bolt shear spring 133 pushes the bolt shear 132 so as to rotate the bolt shear counterclockwise in FIG. 2 .
  • the forward protruded portion 132b is moved downward and the stopper portion 132d is moved upward.
  • the advance of the bolt 121 is prevented and the valve 123 is pushed backward.
  • communication between the air chamber 126 and the gas discharge portion 194 is broken.
  • the trigger 105 forms an operation portion 130 for opening/closing the valve 123.
  • the bomb attachment device 201 is equivalent to "attachment device" in WHAT IS CLAIMED IS.
  • FIG. 1 will be referred to.
  • the gas bomb 102 is housed in the bomb attachment device 201 and positioned ahead of the trigger 105.
  • the bomb attachment device 201 is attached to a unit attached portion 122f (Refer to FIG. 2 as well) with the gas bomb 102 housed therein.
  • the unit attached portion 122f is provided at the end below the gas introduction passage 122e.
  • the bomb attachment device 201 is in the shape of a vertically long box.
  • a unit attaching portion 202 is protruded from the upper surface of the bomb attachment device 201.
  • a housing space 203 is formed for housing two gas bombs 102.
  • a partitioning portion 203a is provided in the housing space 203.
  • the partitioning portion 203a partitions the housing space 203 into placement spaces 204a for placing individual gas bombs 102.
  • a gas bomb introduction port 204 continuing to the housing space 203 is open.
  • Two bomb holders 206 are placed in the housing space 203 in proximity to an attachment device bottom portion 205 on the opposite side to the unit attaching portion 202.
  • a shaft 207 is extended from each of the bomb holders 206. Each shaft 207 penetrates the attachment device bottom portion 205.
  • a handle 208 is provided at the end of each shaft 207 outside the housing space 203.
  • a threaded portion 209 is provided on the circumference of each shaft 207. The threaded portion 209 is screwed on the attachment device bottom portion 205.
  • Each bomb holder 206, shaft 207, handle 208, and threaded portion 209 move the gas bomb 102 placed in the corresponding placement space 204a so that the following is implemented: a needle portion 217a (Refer to FIG. 6 and the like) is stuck into the sealing material 102c (Refer to FIG. 4 and the like) of the gas bomb 102.
  • the gas bomb 102 is fixed in this state.
  • each needle portion 217a is stuck into the sealing material 102c of a gas bomb 102 placed in a placement space 204a to fix the gas bomb 102.
  • the technology descried in US Patent No. 7290539 may be adopted in place of the bomb holders 206, shafts 207, handles 208, and threaded portions 209.
  • a panel with a roller is attached to the bomb attachment device 201 so that the panel opens/closes the housing space 203. When the panel is closed, the roller pushes a gas bomb 102 in the housing space 203. When the gas bomb 102 is pushed by the roller, the gas bomb 102 is fixed in the housing space 203 and a needle portion 217a is stuck into the sealing material 102c of the gas bomb 102.
  • FIG. 4 is a perspective view of a gas bomb 102.
  • the gas bomb 102 is cylindrical.
  • the gas bomb 102 is filled therein with compressed gas. Examples of the compressed gas include carbonic acid gas, chlorofluorocarbon gas, CFC substitute gas, and the like.
  • the first end portion 102a of the gas bomb 102 located on one side is conically narrowed.
  • a gas injection port 102b is provided at the tip of the first end portion 102a.
  • the gas injection port 102b is sealed with the sealing material 102c.
  • the second end portion 102d of the gas bomb 102 located on the other side is closed.
  • FIG. 5 is a left sectional view illustrating the internal structure of the bomb attachment device 201.
  • FIG. 6 is a left sectional view of a communication passage 213.
  • the bomb attachment device 201 includes a gas cartridge attachment portion 210, a first valve portion 211, and a second valve portion 212.
  • the communication passage 213 is formed.
  • a gas cartridge attachment portion 210, a first valve portion 211, the unit attaching portion 202, and the second valve portion 212 are provided in the bomb attachment device 201 as a unit. For this reason, the bomb attachment device 201 can be attached to and detached from the unit attached portion 122f as a whole.
  • the communication passage 213 includes a main passage 213a.
  • the main passage 213a is provided in the unit attaching portion 202 and is extended in the unit attaching portion 202.
  • the main passage 213a is branched into two branch passages 213b.
  • Each branch passage 213b is comprised of a first passage 213ba and a second passage 213bb.
  • Each first passage 213ba is extended from the end portion of the main passage 213a in the direction perpendicular to the main passage 213a.
  • Each second passage 213bb connects a first passage 213ba and a placement space 204a together.
  • each branch passage 213b a gas cartridge attachment portion 210 and a first valve portion 211 are placed.
  • the gas cartridge attachment portion 210 includes a tear part 217 (described later) and is provided at the end portion of each branch passage 213b on the placement space 204a side.
  • the gas injection port 102b (Refer to FIG. 4 ) of a gas bomb 102 is attached to the gas cartridge attachment portion 210.
  • Each gas cartridge attachment portion 210 is provided with a first valve portion 211.
  • the first valve portion 211 establishes and breaks communication between the communication passage 213 and the corresponding placement space 204a.
  • Each first valve portion 211 includes a check valve 211a.
  • the check valve 211a is comprised of a valve ball 214 and a ball valve packing 215.
  • a valve ball 214 To each second passage 213bb, a valve ball 214, a ball valve packing 215, a first auxiliary packing 216, a tear part 217, and a second auxiliary packing 218 are inserted from the corresponding placement space 204a in this order.
  • the valve ball 214 is perfectly spherical.
  • a receiving portion 215a and a through hole 215b are formed in each ball valve packing 215.
  • the receiving portion 215a forms an inclined surface inclined from the through hole 215b and receives the valve ball 214 by this inclined surface.
  • the through hole 215b is extended from the receiving portion 215a and penetrates the ball valve packing 215.
  • Each tear part 217 includes a needle portion 217a, a holding portion 217b, and a fitting portion 217c.
  • the needle portion 217a is protruded toward the corresponding placement space 204a.
  • the holding portion 217b is protruded toward the unit attaching portion 202 and holds the ball valve packing 215.
  • the fitting portion 217c is fit in a fitting groove 213c formed in the inner circumferential surface of the corresponding second passage 213bb.
  • a vent hole 217d is formed in each tear part 217.
  • the vent hole 217d penetrates the corresponding needle portion 217a and fitting portion 217c and continues to the corresponding through hole 215b.
  • Each first auxiliary packing 216 surrounds the outside surface of a tear part 217 and is sandwiched between a ball valve packing 215 and a fitting portion 217c.
  • Each second auxiliary packing 218 sandwiches a fitting portion 217c between it and a first auxiliary packing 216.
  • Each first auxiliary packing 216, tear part 217, and second auxiliary packing 218 are press fit into the corresponding second passage 213bb and become stationary in the second passage 213bb.
  • the ball valve packing 215 is held by the holding portion 217b and the first auxiliary packing 216 and becomes stationary in the second passage 213bb.
  • the diameter of the valve ball 214 is larger than the inside diameter of the first passage 213ba. For this reason, the valve ball 214 does not roll into the first passage 213ba.
  • the first valve portion 211 may include a manual valve that can be opened/closed by a user's operation in place of the check valve 211a.
  • the second valve portion 212 is placed in the main passage 213a.
  • the second valve portion 212 is provided at some midpoint in the main passage 213a and establishes and breaks communication between the communication passage 213 and the external space.
  • the second valve portion 212 includes a valve body spring 219, a valve body 220, and a valve body packing 221.
  • valve body spring 219 the valve body 220
  • valve body packing 221 is slightly protruded from the third auxiliary packing 222 inward of the main passage 213a and forms a minute stepped portion 221b.
  • the valve body 220 is a columnar body long in the direction in which the main passage 213a is extended.
  • a vent hole 220a is formed in the valve body 220.
  • the vent hole 220a connects together the end face of the valve body 220 on the opening 202a side and the side surface of the valve body 220.
  • a flange portion 220b is protruded in the side surface of the valve body 220 between the opening of the vent hole 220a and the branch passages 213b.
  • the valve body spring 219 is positioned between the flange portion 220b and the spring receiving portion 213d and pushes the valve body 220 toward the opening 202a.
  • the spring receiving portion 213d is provided at the boundary between the main passage 213a and the branch passages 213b and is jutted inward of the communication passage 213.
  • the valve body packing 221 forms a through hole 221a into which the valve body 220 gets.
  • the flange portion 220b of the valve body 220 pushed by the valve body spring 219 is pressed against the valve body packing 221.
  • the third auxiliary packing 222, press fit member 223, and nozzle support member 224 prevent the movement of the valve body packing 221 toward the opening 202a.
  • the opening of the vent hole 220a appearing in the side surface of the valve body 220 is in contact with the inner circumferential surface of the through hole 221a. As a result, the main passage 213a is interrupted.
  • FIG. 7 is a left sectional view of the communication passage 213 with the unit attached portion 122f attached thereto.
  • the unit attached portion 122f has a nozzle 122g. (Refer to FIG. 2 .)
  • the nozzle 122g communicates with the gas introduction passage 122e.
  • the circumference of the tip of the nozzle 122g is slightly recessed and a minute stepped portion 122h is formed there.
  • the nozzle 122g is inserted from the opening 202a into the main passage 213a.
  • the nozzle support member 224 holds the side surface of the inserted nozzle 122g to fill the gap between the nozzle support member 224 and the nozzle 122g.
  • the internal space of the inserted nozzle 122g and the vent hole 220a of the valve body 220 communicate with each other.
  • the tip of the inserted nozzle 122g moves the valve body 220 toward the branch passages 213b.
  • the minute stepped portion 221b of the valve body packing 221 and the minute stepped portion 122h of the nozzle 122g are engaged with each other.
  • the valve body 220 pushed by the nozzle 122g does not bump into the spring receiving portion 213d. This prevents the valve body spring 219 from being compressed to interrupt the main passage 213a.
  • the internal space of the nozzle 122g, the vent hole 220a, and the main passage 213a communicate with one other.
  • valve body 220 moved by the nozzle 122g is depicted by alternate long and short dash line.
  • the valve body spring 219 pushes the valve body 220 toward the opening 202a and interrupts the main passage 213a.
  • FIG. 8 is a left sectional view of the communication passage 213.
  • the second valve portion 212 includes a check valve 212a.
  • the check valve 212a is comprised of a valve ball 225 and the valve body packing 221.
  • the valve ball 225 is placed in place of the valve body 220 and is perfectly spherical.
  • the valve ball 225 is pushed toward the opening 202a by the valve body spring 219 and the pressure of compressed gas in the communication passage 213 and is pressed against the edge portion of the through hole 221a. As a result, the main passage 213a is interrupted.
  • FIG. 9 is a left sectional view of the communication passage 213 with the unit attached portion 122f attached thereto.
  • a cutout 122i is formed at the tip of the nozzle 122g.
  • the minute stepped portion 221b of the valve body packing 221 and the minute stepped portion 122h of the nozzle 122g are engaged with each other.
  • the valve ball 225 pushed by the nozzle 122g does not bump into the spring receiving portion 213d. This prevents the valve body spring 219 from being compressed to interrupt the main passage 213a.
  • the valve ball 225 moved by the nozzle 122g is depicted by alternate long and short dash line.
  • the valve body spring 219 pushes the valve ball 225 toward the opening 202a and interrupts the main passage 213a.
  • valve body spring 219 When attention is paid to that the valve ball 225 shown in FIG. 8 and FIG. 9 is pushed by the pressure of compressed gas in the communication passage 213 and is pressed against the valve body packing 221, the valve body spring 219 need not be provided. However, the presence of the valve body spring 219 implements the following: when the nozzle 122g is withdrawn from the main passage 213a, the valve ball 225 quickly moves to the opening 202a and the main passage 213a is immediately interrupted.
  • An inclined surface inclined from the through hole 221a may be formed in the valve body packing 221 at the point of contact with the valve ball 225 like the receiving portions 215a shown in FIG. 6 and FIG. 7 .
  • FIG. 10 is a left sectional view of the bomb attachment device 201 with a gas bomb 102 attached to only one gas cartridge attachment portion 210.
  • the areas filled with compressed gas are filled with dots.
  • a user inserts the gas bomb 102 from the gas bomb introduction port 204 (Refer to FIG. 1 ) into a placement space 204a.
  • the first end portion 102a is brought close to the corresponding gas cartridge attachment portion 210 and the second end portion 102d is brought close to the corresponding bomb holder 206.
  • the user rotates the corresponding handle 208 so that the bomb holder 206 is moved toward the gas cartridge attachment portion 210.
  • the needle portion 217a of the corresponding tear part 217 is stuck into the sealing material 102c of the gas bomb 102. (Refer to FIG. 4 as well.)
  • compressed gas in the gas bomb 102 spouts out and gets into the corresponding vent hole 217d and brings the valve ball 214 away from the ball valve packing 215.
  • the compressed gas passes through the corresponding branch passage 213b and flows into the main passage 213a and increases the pressure in the communication passage 213 at a dash.
  • the valve ball 214 is pushed by the pressure in the communication passage 213 and is pressed against the receiving portion 215a of the corresponding ball valve packing 215. For this reason, the compressed gas does not leak from the gas cartridge attachment portion 210 without a gas bomb 102 attached thereto.
  • valve body spring 219 pushes the valve body 220 and the main passage 213a is interrupted. For this reason, the compressed gas does not leak from the unit attaching portion 202, either.
  • FIG. 11 is a left sectional view of the bomb attachment device 201 with a gas bomb 102 attached to every gas cartridge attachment portion 210.
  • the areas filled with compressed gas are filled with dots.
  • a user attaches a gas bomb 102 also to a gas cartridge attachment portion 210 without a gas bomb 102 attached thereto in accordance with the same procedure. As a result, compressed gas gets into the communication passage 213 from both the gas cartridge attachment portions 210.
  • FIG. 12 is a left sectional view of the bomb attachment device 201 with a gas bomb 102 attached to every gas cartridge attachment portion 210 as is coupled to the air chamber body 122.
  • the areas filled with compressed gas are filled with dots.
  • a user inserts the nozzle 122g provided in the air chamber body 122 into the opening 202a of the unit attaching portion 202.
  • the gas introduction passage 122e in the air chamber body 122 and the communication passage 213 in the bomb attachment device 201 communicate with each other.
  • a gas introduction portion 301 for guiding compressed gas from the gas bomb attached to each gas cartridge attachment portion 210 into the air chamber 126 is formed.
  • the gas introduction portion 301 can be freely coupled or decoupled by the unit attached portion 122f and the unit attaching portion 202.
  • a user moves the trigger 105 (Refer to FIG. 1 and the like) to shoot a bullet B (Refer to FIG. 1 and the like) out of the muzzle 103 (Refer to FIG. 1 and the like) of the toy gun 101.
  • compressed gas is supplied from the gas bombs 102 through the gas introduction portion 301 and is filled in the air chamber 126.
  • FIG. 13 is a left sectional view of the bomb attachment device 201 with a gas bomb 102 attached to only one gas cartridge attachment portion 210 as is coupled to the air chamber body 122.
  • the areas filled with compressed gas are filled with dots.
  • the bomb attachment device 201 with a gas bomb 102 attached to only one gas cartridge attachment portion 210 as in FIG. 10 is coupled to the air chamber body 122, the user can use the toy gun 101 without problems. This is because compressed gas does not leak from a gas cartridge attachment portion 210 without a gas bomb 102 attached thereto as mentioned above.
  • valve body spring 219 pushes the valve body 220 toward the opening 202a and the main passage 213a is interrupted. As a result, compressed gas in a gas bomb 102 does not leak from the opening 202a.
  • each gas cartridge attachment portion 210 can be closed by the first valve portion 211.
  • the toy gun 101 can be used without the replacement of a gas bomb 102 for a long time.
  • the portability of the gas bomb 102 is enhanced.
  • the toy gun 101 can be flexibly designed. As the result of a first valve portion 211 being closed, bullets B can be shout out of the toy gun 101 just by attaching one gas bomb 102 to the bomb attachment device 201.
  • each first valve portion 211 includes a check valve 211a. For this reason, when a user attaches or detaches a gas bomb 102, he/she need not open or close the first valve portion 211.
  • the bomb attachment device 201 is provided with the gas cartridge attachment portions 210, first valve portions 211, unit attaching portion 202, and second valve portion 212 as a unit. For this reason, the usability of the bomb attachment device 201 is enhanced.
  • compressed gas does not leak even when the bomb attachment device 201 is removed from the nozzle 122g or some gas bombs 102 are removed from the bomb attachment device 201. For this reason, it is possible to remove the bomb attachment device 201 from the nozzle 122g and use a gas bomb 102 attached to the bomb attachment device 201 later. It is also possible to attach the bomb attachment device 201 removed with a gas bomb 102 attached thereto to a different toy gun 101.
  • FIG. 14 is a left sectional view of the toy gun 101 with a gas bomb attached to every gas cartridge attachment portion 210.
  • the areas filled with compressed gas are filled with dots.
  • an element corresponding to the bomb attachment device 201 in the first embodiment is integrally formed in the air chamber body 122. That is, a gas bomb attachment portion 201a is extended downward from the air chamber body 122 in this embodiment.
  • a housing space 203 is formed and the elements, such as the gas cartridge attachment portion 210 and the first valve portion 211, provided in the bomb attachment device 201 are housed there.
  • the toy gun 101 is not provided with the second valve portion 212. (Refer to FIG.
  • the gas introduction passage 122e and the main passage 213a are in common.
  • the toy gun 101 is not provided with the spring receiving portion 213d (Refer to FIG. 6 ) positioned at the boundary between the main passage 213a and the branch passages 213b, either.
  • the toy gun 101 in this embodiment multiple small-sized gas bombs 102 can be used as in the toy gun in the first embodiment. Therefore, the toy gun 101 can be used without the replacement of a gas bomb 102 for a long time. At the same time, the portability of the gas bomb 102 is enhanced.
  • the bomb attachment device 201 (Refer to the description of the first embodiment) cannot be removed because the air chamber body 122 and the gas bomb attachment portion 201a are not separated from each other.
  • FIG. 15 and FIG. 16 A description will be given to another embodiment with reference to FIG. 15 and FIG. 16 .
  • This embodiment according to the present invention will be designated as second embodiment for convenience of explanation.
  • This embodiment is based on the toy gun of Fig. 14 . In this case, the same parts will be marked with the same reference numerals and the description thereof will be omitted.
  • FIG. 15 is a left sectional view of a bomb unit 401.
  • the air chamber body 122, gas introduction portion 301, gas cartridge attachment portions 210, first valve portions 211, and valve 123 are unitized as the bomb unit 401.
  • the bomb unit 401 is equivalent to "attachment device" in WHAT IS CLAIMED IS.
  • the bomb unit 401 can be freely attached to and detached from the frame 111.
  • the configuration of the bomb unit 401 is the same as the configuration of the air chamber body 122 in the toy gun of Fig. 14 . That is, the bomb unit 401 includes the air chamber body 122 formed by extending the gas bomb attachment portion 201a and the valve 123 housed in the air chamber body 122.
  • a flange portion 302 is extended from the side surface of the gas introduction portion 301.
  • FIG. 16 is a left sectional view of the toy gun 101.
  • the lower surface of the frame 111 is provided with a slot 111a for inserting the bomb unit 401 from below.
  • a guide portion 111c is extended from the edge of the slot 111a inward of the frame 111. The guide portion 111c guides the bomb unit 401.
  • a stopper 111d is provided on a side surface of the frame 111.
  • the stopper 111d can be freely slid in the left-right direction of the toy gun 101 and a user can move the stopper.
  • the stopper 111d holds the flange portion 302 of the bomb unit 401 inserted from the slot 111a and prevents the bomb unit 401 from being moved in the vertical direction.
  • the upper surface of the front part of the stopper 111d can support the lower surface of the front end portion of the air chamber body 122.
  • a holding protrusion 111e is protruded from the left and right inside surfaces of the frame 111.
  • the holding protrusions 111e clamp the left and right side surfaces of the air chamber body 122 to prevent the bomb unit 401 from being moved in the left-right direction of the toy gun 101.
  • the bolt 121 is formed in such a shape that the bolt is not interfered with by the holding protrusions 111e.
  • a user holds the bomb unit 401 with a gas bomb 102 attached to the gas bomb attachment portion 201a and inserts the air chamber body 122 of the bomb unit 401 upward from the slot 111a.
  • the air chamber body 122 is guided by the guide portion 111c and positioned in a position where the barrel 113 and the valve 123 are coaxially aligned with each other. At this time, the air chamber body 122 is sandwiched between the holding protrusions 111e.
  • the user subsequently moves the stopper 111d to cause the stopper 111d holds the flange portion 302.
  • the bolt 121 advances and the abutment portion 121e (Refer to FIG. 2 , FIG.
  • the toy gun 101 in this embodiment multiple small-sized gas bombs 102 can be used as in the toy gun in the first embodiment. Therefore, the toy gun 101 can be used without the replacement of a gas bomb 102 for a long time. At the same time, the portability of the gas bomb 102 is enhanced.
  • the air chamber body 122 can be replaced.
  • the air chamber body 122 includes the air chamber 126 and valve 123 important for firing bullets B. For this reason, a user can replace the bomb unit 401 to enjoy various types of the feeling of shooting through the toy gun 101.
  • the magazine 112 may be attached to a side surface of the gas bomb attachment portion 201a of the bomb unit 401 as illustrated in FIG. 17 .
  • the flange portion 302 (Refer to FIG. 15 , FIG. 16 , and the like) and the stopper 111d (Refer to FIG. 16 and the like) are used for the following purpose: to fix or release the bomb unit 401 to or from the frame 111.
  • the bomb unit may be fixed to or released from the frame 111 as follows:
  • a magazine catch having a tab portion and an operation lever portion is coupled to the frame 111.
  • the tab portion of the magazine catch can freely advance or retreat to or from the lower surface of the valve 123 and supports the lower surface of the valve 123.
  • the magazine catch is pushed by a spring and the like so that the tab portion gets into under the lower surface of the valve 123.
  • the operation lever portion the tab portion retreats from the lower surface of the valve 123 and the bomb unit 401 can be freely inserted into or withdrawn from the slot 111a.
  • the tab portion moves and supports the lower surface of the valve 123.
  • the bomb unit 401 is fixed on the frame 111.
  • the toy gun 101 is of rapid firing type and continuously fires bullets B as long as the trigger 105 is pulled.
  • the invention is also applicable to single firing toy guns and burst toy guns, needless to add.
  • a gas bomb 102 is positioned ahead of the trigger 105.
  • the invention is also applicable to the following toy guns, needless to add: toy guns in which the place of attachment of the bomb attachment device 201 or the bomb unit 401 is provided behind the trigger 105 so that a gas bomb 102 can be positioned behind the trigger 105.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Claims (2)

  1. Befestigungsvorrichtung (201), die umfasst:
    eine Vielzahl von Gaspatronenbefestigungsabschnitten (210), an denen eine Gaspatrone (102) zum Liefern von Druckgas befestigt ist;
    ein Einheitenbefestigungsabschnitt (202), der frei an einem befestigten Einheitenabschnitt (122f) befestigt und von diesem gelöst werden kann, der in einer Spielzeugwaffe (101) bereitgestellt ist und Druckgas, das von einer Gaspatrone (102) geliefert wird, die an jedem der Gaspatronenbefestigungsabschnitte (210) befestigt ist, in die Spielzeugwaffe (101) leitet;
    einen ersten Ventilabschnitt (211), der in jedem der Gaspatronenbefestigungsabschnitte (210) bereitgestellt ist; und
    einen zweiten Ventilabschnitt (212), der in dem Einheitenbefestigungsabschnitt (202) bereitgestellt ist.
  2. Befestigungsvorrichtung (401), die umfasst:
    einen Luftkammerkörper (122), der frei an einer Spielzeugwaffe befestigt und von dieser gelöst werden kann, der einen Geschossaufnahmeabschnitt zum Aufnehmen eines Geschosses (B) hat und eine Luftkammer (126) bildet;
    ein Gasausstoßabschnitt, der aufgebaut ist, um in der Spielzeugwaffe (101) bereitgestellt zu werden, und der aufgebaut ist, um Druckgas in der Luftkammer (129) zu einem von dem Geschossaufnahmeabschnitt aufgenommenen Geschoss (B) zu leiten;
    ein Ventil (123), das die Verbindung mit der Luftkammer öffnet oder schließt;
    eine Vielzahl von Gaspatronenbefestigungsabschnitten (210), an denen eine Gaspatrone (102) zum Liefern von Druckgas befestigt ist;
    einen ersten Ventilabschnitt (211), der in jedem der Gaspatronenbefestigungsabschnitte (210) bereitgestellt ist; und
    einen Gaseinleitungsabschnitt (301), der Druckgas von einer Gaspatrone (102), die an jedem der Gaspatronenbefestigungsabschnitte (210) befestigt ist, in die Luftkammer leitet.
EP20120000323 2012-01-19 2012-01-19 Befestigungsvorrichtung für Gaspatronen einer Spielzeugwaffe Active EP2618096B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20120000323 EP2618096B1 (de) 2012-01-19 2012-01-19 Befestigungsvorrichtung für Gaspatronen einer Spielzeugwaffe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120000323 EP2618096B1 (de) 2012-01-19 2012-01-19 Befestigungsvorrichtung für Gaspatronen einer Spielzeugwaffe

Publications (2)

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EP2618096A1 EP2618096A1 (de) 2013-07-24
EP2618096B1 true EP2618096B1 (de) 2014-03-26

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ID=45654753

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8517719U1 (de) * 1985-03-12 1986-07-10 Idl, Victor, Lienz Lauf-Wechselsystem für eine Pistole
JP2506217Y2 (ja) 1993-12-13 1996-08-07 有限会社マルゼン 玩具銃
DE10116010A1 (de) * 2001-03-30 2002-10-02 Umarex Gmbh & Co Kg Druckgasbetribene Schusseinrichtung sowie Druckversorgungsvorrichtung für eine derartige Schusseinrichtung
US7290539B2 (en) 2005-05-23 2007-11-06 Maruzen Company Limited Air gun cartridge attachment and detachment apparatus
US20070062510A1 (en) * 2005-09-22 2007-03-22 Lester Broersma Multiple cannister supply paintball marker

Also Published As

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