EP2618096A1 - Toy gun and attachment device for gas cartridges - Google Patents
Toy gun and attachment device for gas cartridges Download PDFInfo
- Publication number
- EP2618096A1 EP2618096A1 EP12000323.1A EP12000323A EP2618096A1 EP 2618096 A1 EP2618096 A1 EP 2618096A1 EP 12000323 A EP12000323 A EP 12000323A EP 2618096 A1 EP2618096 A1 EP 2618096A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- valve
- air chamber
- bomb
- attached
- 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.)
- Granted
Links
- 238000004891 communication Methods 0.000 claims abstract description 36
- 238000012856 packing Methods 0.000 description 35
- 238000012986 modification Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 5
- 238000010304 firing Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 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
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.
- a toy gun of the invention 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 provided in the toy gun and guides 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 A description will be given to another embodiment with reference to FIG. 14 .
- This embodiment will be designated as second embodiment for convenience of explanation.
- the same parts as in the first embodiment will be marked with the same reference numerals and the description thereof will be omitted.
- 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) will not be lost because the air chamber body 122 or the gas bomb attachment portion 201a is 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 will be designated as third embodiment for convenience of explanation.
- This embodiment is based on the second embodiment. In this case, the same parts as in the second embodiment 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 second embodiment. 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:
- 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.
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Abstract
Description
- 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 - According to the description in
JP-UM-A-Hei 7-41292 - In the toy gun described in
JP-UM-A-Hei 7-41292 JP-UM-A-Hei 7-41292 - To use the toy gun without the replacement of the bomb 22 for a long time, the bomb 22 could be increased in size. However, this makes the bomb 22 bothersome to carry.
- It is an object of the invention to make it possible to use a toy gun configured to fire bullets by compressed gas without the replacement of a gas cartridge for a long time and enhance the portability of the gas cartridge.
- A toy gun of the invention 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.
- According to another aspect, 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 provided in the toy gun and guides 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.
- According to the invention, multiple gas cartridges can be attached. Each the gas cartridge attachment portion can be closed with a first valve portion. For this reason, instead of a large-sized gas cartridge, 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. In addition, the portability of the gas cartridge is enhanced. Since the gas cartridge can be reduced in size, the toy gun can be flexibly designed.
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FIG. 1 is a left side view of a toy gun in a first embodiment; -
FIG. 2 is a left sectional view illustrating the internal structure of a toy gun in the first embodiment; -
FIG. 3 is a left sectional view illustrating the internal structure of a toy gun in the first embodiment with a bolt positioned in the pressing position; -
FIG. 4 is a perspective view of a gas bomb in the first embodiment; -
FIG. 5 is a left sectional view illustrating the internal structure of a bomb attachment device in the first embodiment; -
FIG. 6 is a left sectional view of a communication passage in the first embodiment; -
FIG. 7 is a left sectional view of a communication passage in the first embodiment with a unit attached portion attached; -
FIG. 8 is a left sectional view of a communication passage shown as a modification to the first embodiment; -
FIG. 9 is a left sectional view of a communication passage with a unit attached portion attached, shown as a modification to the first embodiment; -
FIG. 10 is a left sectional view of a bomb attachment device in the first embodiment with a gas bomb attached to only one gas cartridge attachment portion; -
FIG. 11 is a left sectional view of a bomb attachment device in the first embodiment with a gas bomb attached to every gas cartridge attachment portion; -
FIG. 12 is a left sectional view of a bomb attachment device, coupled to an air chamber body, in the first embodiment with a gas bomb attached to every gas cartridge attachment portion; -
FIG. 13 is a left sectional view of a bomb attachment device, coupled to an air chamber body, in the first embodiment with a gas bomb attached to only one gas cartridge attachment portion; -
FIG. 14 is a left sectional view of a toy gun in a second embodiment with all the gas cartridge attachment portions attached; -
FIG. 15 is a left sectional view of a bomb unit in a third embodiment; -
FIG. 16 is a left sectional view of a toy gun in the third embodiment; and -
FIG. 17 is a left sectional view of a bomb unit shown as a modification to the third embodiment. - A description will be given to an embodiment with reference to
FIG. 1 to FIG. 13 . The embodiment will be designated as first embodiment for convenience of explanation.FIG. 1 is a left side view of atoy gun 101. A gas bomb 102 (gas cartridge) is attached to thetoy gun 101. When a user uses thetoy gun 101, he/she holds agrip 104 with his/her palm, places his/her finger on atrigger 105, aims amuzzle 103 at an object to be shot (for example, a target), and pulls thetrigger 105. When thetrigger 105 is pulled, a bullet B is shot out of themuzzle 103 by the pressure of compressed gas filled in thegas bomb 102. In the following description, the side where themuzzle 103 is located will be designated as the front side of thetoy gun 101 and the side where thegrip 104 is located will be designated as the rear side of thetoy gun 101. -
FIG. 2 is a left sectional view illustrating the internal structure of thetoy gun 101. The area inFIG. 2 filled with compressed gas is filled with dots. Thetoy gun 101 includes aframe 111, amagazine 112, abarrel 113, abolt 121, anair chamber body 122, avalve 123, abolt spring 124, and avalve spring 129. Theframe 111 forms part of the gun barrel and defines the front-rear direction of thetoy gun 101. - The
magazine 112 is extended downward from thebullet introduction port 190a (described later) provided in theair chamber body 122. Themagazine 112 is formed in the shape of a cylinder with only one end thereof open and is attached to and detached from theframe 111 with the closed end thereof positioned downward. In themagazine 112, amagazine spring 112a and amagazine follower 112b are placed. Themagazine spring 112a connects the closed end of themagazine 112 and themagazine follower 112b together. In themagazine 112, bullets B are housed. The bullets B in themagazine 112 are pushed up by themagazine spring 112a and fed from thebullet 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 theframe 111 frontward of thetoy gun 101. The front end of thebarrel 113 is themuzzle 103. The rear end of thebarrel 113 is coupled to the front side of theframe 111. Thebarrel 113 may be housed in theframe 111. - The
air chamber body 122 is housed in theframe 111. In theair chamber body 122, thepassage 190 is formed. Thepassage 190 is linearly extended from therear end portion 103a of thebarrel 113 located on the opposite side to themuzzle 103 in the front-rear direction of the gun barrel and communicates with an air chamber 126 (described later). A bullet B fed from themagazine 112 to thebullet introduction port 190a is pushed up by themagazine follower 112b and positioned in thepassage 190 and is held by thebullet holding portion 192. An example of thebullet holding portion 192 is a minute recess formed in the upper surface of the internal space of thepassage 190. - In the
air chamber body 122, theair chamber 126 is formed. The above-mentionedpassage 190 is extended form the front side of theair chamber 126. The rear side of theair chamber 126 is closed with arear lid 122a. In therear lid 122a, a throughhole 122b penetrating the rear lid in the front-rear direction of the gun barrel is formed. A ring-shapedpacking 122c is attached to around the throughhole 122b in the front end face of therear lid 122a. The rear side of the throughhole 122b is large in inside diameter and forms afitting hole 122d. Theabutment portion 121e (described later) provided on thebolt 121 gets into thefitting hole 122d. - In the
air chamber body 122, agas introduction passage 122e is formed. Theair chamber body 122 is in such a shape that it is protruded downward and is fit in theframe 111 and forms thegas introduction passage 122e. - The
bolt 121 is housed in theframe 111. Thebolt 121 is cylindrical and is extended in the front-rear direction of the gun barrel. The front side of thebolt 121 is an open end 121a. The rear side of thebolt 121 is aclosed end 121b. Alever 121c is protruded upward from the upper surface of thebolt 121. A part of thelever 121c is protruded upward from theframe 111. A lockingprotrusion 121d is protruded downward from the lower surface of the rear side of thebolt 121. Theabutment portion 121e is protruded from theclosed end 121b toward the internal space of thebolt 121. - The
bolt 121 can be freely moved in the front-rear direction of the gun barrel. When a user pulls thetrigger 105, thebolt 121 starts advancing and is caused to reciprocate between the pressing position 121A and the retreat position 121B by thebolt spring 124 and the pressure of compressed gas. The retreat position 121B cited here refers to such a position of thebolt 121 that theabutment portion 121e is away from the slidingprotrusion 123b (described later) of thevalve 123 on the rear side of thetoy gun 101.FIG. 2 shows thebolt 121 as is positioned in the retreat position 121B. The pressing position 121A refers to such a position of thebolt 121 that theabutment portion 121e is in contact with the slidingprotrusion 123b of thevalve 123 ahead of the retreat position 121B in the front-rear direction of thetoy gun 101.FIG. 3 shows thebolt 121 as is positioned in the pressing position 121A. - The
bolt spring 124 is positioned between the outside surface of theclosed end 121b of thebolt 121 and theinside surface 111b of the rear part of theframe 111. Thebolt spring 124 pushes thebolt 121 positioned in the retreat position 121B forward to the pressing position 121A. - The
valve 123 is positioned between theair chamber 126 and thepassage 190 and is placed in theair chamber 126. Aflange portion 123a and the slidingprotrusion 123b are formed on the rear end side of thevalve 123. Theflange portion 123a is radially protruded from the circumference of thevalve 123. The slidingprotrusion 123b gets into the throughhole 122b and is protruded to thefitting hole 122d side. Thevalve 123 forms astraight passage 123c and aninclined passage 123d. Thestraight passage 123c and theinclined passage 123d communicate with each other and compressed gas can pass therein. Thestraight passage 123c is open in the front end face of thevalve 123 and is extended in the front-rear direction of the gun barrel. Theinclined passage 123d is extended in a direction inclined from thestraight passage 123c and is open between theflange portion 123a and the slidingprotrusion 123b. An O-ring 127 and awasher 128 are fit to the circumference of thevalve 123 on the front end side. The O-ring 127 is sandwiched between thewasher 128 and the inner wall of theair chamber body 122. - The
valve spring 129 is positioned between thewasher 128 and theflange portion 123a and is so placed that the valve spring is wound around thevalve 123. Thevalve spring 129 pushes thewasher 128 forward to press the O-ring 127 against the inner wall of theair chamber body 122. Thevalve spring 129 presses theflange portion 123a against the packing 122c. As a result, communication between thepassage 190 and theair chamber 126 is broken. -
FIG. 3 is a left sectional view illustrating the internal structure of thetoy gun 101 with thebolt 121 positioned in the pressing position 121A. When thebolt 121 advances and reaches the pressing position 121A, the circumferential portion of theair chamber body 122 on the rear side is fit in the open end 121a of thebolt 121. (Refer toFIG. 2 .) When thebolt 121 further advances, theabutment portion 121e pushes forward the slidingprotrusion 123b of thevalve 123 protruded into thefitting hole 122d. As a result, thevalve 123 slides to the front side and theflange portion 123a is broken away from thepacking 122c. Accordingly, communication between thepassage 190 and theair chamber 126 is established. - When communication between the
passage 190 and theair chamber 126 is established, compressed gas filled in theair chamber 126 flows as indicated by arrows inFIG. 3 . That is, the compressed gas passes through theinclined passage 123d and thestraight passage 123c and flows into thepassage 190 to press the rear face of a bullet B (Refer toFIG. 2 ) held by thebullet holding portion 192. As a result, the bullet B flies out of the muzzle 103 (Refer toFIG. 2 ). Theinclined passage 123d,straight passage 123c, andpassage 190 comprises agas discharge portion 194 for guiding compressed gas in theair chamber 126 to a bullet B held by thebullet holding portion 192. Thevalve 123 establishes and breaks communication between theair chamber 126 and thegas discharge portion 194. - When communication between the
passage 190 and theair chamber 126 is established, the compressed gas gets also into the gap S between the inner wall surface of the throughhole 122b and the slidingprotrusion 123b as indicated by arrows inFIG. 3 . The compressed gas passes through the throughhole 122b and pushes theabutment portion 121e backward. As a result, thebolt 121 starts retreating and reaches the retreat position 121B. (Refer toFIG. 2 .) Thebolt 121 that has reached the retreat position 121B is pushed by thebolt spring 124 and advances again. When thebolt 121 reaches the pressing position 121A, the bolt pushes the slidingprotrusion 123b of thevalve 123 forward. As mentioned above, thebolt 121 makes reciprocating motion and repeats advance and retreat. While thebolt 121 makes one reciprocating motion, the bolt is abutted against and broken away from thevalve 123 and thereby establishes and breaks communication between thepassage 190 and theair chamber 126. - When the
abutment portion 121e is broken away from the slidingprotrusion 123b, thevalve spring 129 pushes back thevalve 123 backward. This slides thevalve 123 backward and theflange portion 123a is brought into tight contact with thepacking 122c. As a result, communication between thepassage 190 and theair chamber 126 is broken. Thereafter, theair chamber 126 is filled therein with compressed gas supplied from thegas introduction passage 122e. -
FIG. 2 will be referred to again. Thetoy gun 101 includes thetrigger 105, atrigger spring 131, abolt shear 132, and abolt shear spring 133. Thetrigger 105 is positioned ahead of thegrip 104. (Refer toFIG. 1 .) Thetrigger 105 is attached to theframe 111 so that the trigger can be freely rotated around afulcrum 105a. Thetrigger 105 includes afinger hooking portion 105d and a backward extendedportion 105b. Thefinger hooking portion 105d is extended downward from thefulcrum 105a. The backwardextended portion 105b is extended backward from thefulcrum 105a. A bolt shear push-upportion 105c is protruded upward from the upper surface of the backwardextended portion 105b. Thetrigger spring 131 pushes thefinger hooking portion 105d clockwise inFIG. 2 . - The
bolt shear 132 is provided in a position sandwiched between the bolt shear push-upportion 105c located therebelow and thebolt 121 located thereabove. Thebolt shear 132 is attached to theframe 111 so that the bolt shear can be freely rotated around theaxial center 132a thereof. Thebolt shear 132 includes a flat plate-like forward protrudedportion 132b and a backward protrudedportion 132c widened like a fan as laterally viewed. The forward protrudedportion 132b is protruded to ahead of theaxial center 132a. The backward protrudedportion 132c is protruded to behind theaxial center 132a. Astopper portion 132d for stopping the lockingprotrusion 121d of thebolt 121 is provided above the backward protrudedportion 132c. Thebolt shear spring 133 is abutted against the lower surface of the backward protrudedportion 132c and rotates thebolt shear 132 counterclockwise inFIG. 2 to lift thestopper portion 132d upward. When thestopper portion 132d is lifted upward, thestopper portion 132d hooks on the lockingprotrusion 121d of thebolt 121 and prevents the advance of thebolt 121. - When a user holds the
lever 121c and moves the bolt backward, the lockingprotrusion 121d climbs over thestopper portion 132d. When the user subsequently releases thelever 121c, thebolt 121 is pushed by thebolt spring 124 and advances and the lockingprotrusion 121d hooks on thestopper portion 132d. When the user thereafter pulls thetrigger 105 backward by his/her finger, thetrigger 105 is rotated counterclockwise inFIG. 2 and moves the bolt shear push-upportion 105c to displace the forward protrudedportion 132b upward. This rotates thebolt shear 132 clockwise inFIG. 2 and the lockingprotrusion 121d is displaced downward. As a result, thebolt 121 is pushed by thebolt spring 124 and advances and thevalve 123 is moved forward. Communication between theair chamber 126 and thegas discharge portion 194 is thereby established. InFIG. 2 , the state of thetrigger 105,trigger spring 131,bolt shear 132, and boltshear spring 133 with thetrigger 105 pulled backward is shown by alternate long and two short dashes line. - When the user releases the
trigger 105, thetrigger spring 131 pushes thefinger hooking portion 105d clockwise inFIG. 2 and displaces the bolt shear push-upportion 105c downward. At this time, thebolt shear spring 133 pushes thebolt shear 132 so as to rotate the bolt shear counterclockwise inFIG. 2 . For this reason, the forward protrudedportion 132b is moved downward and thestopper portion 132d is moved upward. As a result, the advance of thebolt 121 is prevented and thevalve 123 is pushed backward. Thus communication between theair chamber 126 and thegas discharge portion 194 is broken. As mentioned above, thetrigger 105 forms anoperation portion 130 for opening/closing thevalve 123. - Consideration will be given to the
gas bomb 102 used in thetoy gun 101 and abomb attachment device 201 for attaching thegas bomb 102 to thetoy gun 101. Thebomb attachment device 201 is equivalent to "attachment device" in WHAT IS CLAIMED IS.FIG. 1 will be referred to. In this embodiment, thegas bomb 102 is housed in thebomb attachment device 201 and positioned ahead of thetrigger 105. Thebomb attachment device 201 is attached to a unit attachedportion 122f (Refer toFIG. 2 as well) with thegas bomb 102 housed therein. The unit attachedportion 122f is provided at the end below thegas introduction passage 122e. - The
bomb attachment device 201 is in the shape of a vertically long box. Aunit attaching portion 202 is protruded from the upper surface of thebomb attachment device 201. In thebomb attachment device 201, ahousing space 203 is formed for housing twogas bombs 102. In thehousing space 203, apartitioning portion 203a is provided. Thepartitioning portion 203a partitions thehousing space 203 intoplacement spaces 204a for placingindividual gas bombs 102. In a side surface of thebomb attachment device 201, a gasbomb introduction port 204 continuing to thehousing space 203 is open. Twobomb holders 206 are placed in thehousing space 203 in proximity to an attachmentdevice bottom portion 205 on the opposite side to theunit attaching portion 202. Ashaft 207 is extended from each of thebomb holders 206. Eachshaft 207 penetrates the attachmentdevice bottom portion 205. Ahandle 208 is provided at the end of eachshaft 207 outside thehousing space 203. A threadedportion 209 is provided on the circumference of eachshaft 207. The threadedportion 209 is screwed on the attachmentdevice bottom portion 205. When a user rotates ahandle 208, the correspondingbomb holder 206 is vertically moved. When the user stops rotating thehandle 208, thebomb holder 206 does not fall and is stopped by engagement between the attachmentdevice bottom portion 205 and the threadedportion 209. Eachbomb holder 206,shaft 207, handle 208, and threadedportion 209 move thegas bomb 102 placed in the correspondingplacement space 204a so that the following is implemented: aneedle portion 217a (Refer toFIG. 6 and the like) is stuck into the sealingmaterial 102c (Refer toFIG. 4 and the like) of thegas bomb 102. Thegas bomb 102 is fixed in this state. - In this embodiment, each
needle portion 217a is stuck into the sealingmaterial 102c of agas bomb 102 placed in aplacement space 204a to fix thegas bomb 102. As the technology for this purpose, the technology descried inUS Patent No. 7290539 may be adopted in place of thebomb holders 206,shafts 207, handles 208, and threadedportions 209. In this case, a panel with a roller is attached to thebomb attachment device 201 so that the panel opens/closes thehousing space 203. When the panel is closed, the roller pushes agas bomb 102 in thehousing space 203. When thegas bomb 102 is pushed by the roller, thegas bomb 102 is fixed in thehousing space 203 and aneedle portion 217a is stuck into the sealingmaterial 102c of thegas bomb 102. -
FIG. 4 is a perspective view of agas bomb 102. Thegas bomb 102 is cylindrical. Thegas 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. Thefirst end portion 102a of thegas bomb 102 located on one side is conically narrowed. Agas injection port 102b is provided at the tip of thefirst end portion 102a. Thegas injection port 102b is sealed with the sealingmaterial 102c. Thesecond end portion 102d of thegas bomb 102 located on the other side is closed. -
FIG. 5 is a left sectional view illustrating the internal structure of thebomb attachment device 201.FIG. 6 is a left sectional view of acommunication passage 213.FIG. 5 andFIG. 6 will be referred to. Thebomb attachment device 201 includes a gascartridge attachment portion 210, afirst valve portion 211, and asecond valve portion 212. In thebomb attachment device 201, thecommunication passage 213 is formed. In this embodiment, a gascartridge attachment portion 210, afirst valve portion 211, theunit attaching portion 202, and thesecond valve portion 212 are provided in thebomb attachment device 201 as a unit. For this reason, thebomb attachment device 201 can be attached to and detached from the unit attachedportion 122f as a whole. - The
communication passage 213 includes amain passage 213a. Themain passage 213a is provided in theunit attaching portion 202 and is extended in theunit attaching portion 202. Themain passage 213a is branched into twobranch passages 213b. Eachbranch 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 themain passage 213a in the direction perpendicular to themain passage 213a. Each second passage 213bb connects a first passage 213ba and aplacement space 204a together. - In each
branch passage 213b, a gascartridge attachment portion 210 and afirst valve portion 211 are placed. Hereafter, a description will be given to the gascartridge attachment portion 210 and thefirst valve portion 211. The gascartridge attachment portion 210 includes a tear part 217 (described later) and is provided at the end portion of eachbranch passage 213b on theplacement space 204a side. Thegas injection port 102b (Refer toFIG. 4 ) of agas bomb 102 is attached to the gascartridge attachment portion 210. Each gascartridge attachment portion 210 is provided with afirst valve portion 211. Thefirst valve portion 211 establishes and breaks communication between thecommunication passage 213 and the correspondingplacement space 204a. Eachfirst valve portion 211 includes acheck valve 211a. Thecheck valve 211a is comprised of avalve ball 214 and a ball valve packing 215. - To each second passage 213bb, a
valve ball 214, a ball valve packing 215, a first auxiliary packing 216, atear part 217, and a second auxiliary packing 218 are inserted from the correspondingplacement space 204a in this order. Thevalve ball 214 is perfectly spherical. In each ball valve packing 215, a receivingportion 215a and a throughhole 215b are formed. The receivingportion 215a forms an inclined surface inclined from the throughhole 215b and receives thevalve ball 214 by this inclined surface. The throughhole 215b is extended from the receivingportion 215a and penetrates the ball valve packing 215. Eachtear part 217 includes aneedle portion 217a, a holdingportion 217b, and afitting portion 217c. Theneedle portion 217a is protruded toward the correspondingplacement space 204a. The holdingportion 217b is protruded toward theunit attaching portion 202 and holds the ball valve packing 215. Thefitting portion 217c is fit in afitting groove 213c formed in the inner circumferential surface of the corresponding second passage 213bb. In eachtear part 217, avent hole 217d is formed. Thevent hole 217d penetrates thecorresponding needle portion 217a andfitting portion 217c and continues to the corresponding throughhole 215b. Each first auxiliary packing 216 surrounds the outside surface of atear part 217 and is sandwiched between a ball valve packing 215 and afitting portion 217c. Each second auxiliary packing 218 sandwiches afitting portion 217c between it and a firstauxiliary packing 216. Each firstauxiliary 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. As a result, the ball valve packing 215 is held by the holdingportion 217b and the first auxiliary packing 216 and becomes stationary in the second passage 213bb. The diameter of thevalve ball 214 is larger than the inside diameter of the first passage 213ba. For this reason, thevalve 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 thecheck valve 211a. - In the
main passage 213a, thesecond valve portion 212 is placed. Hereafter, a description will be given to thesecond valve portion 212. Thesecond valve portion 212 is provided at some midpoint in themain passage 213a and establishes and breaks communication between thecommunication passage 213 and the external space. Thesecond valve portion 212 includes avalve body spring 219, avalve body 220, and a valve body packing 221. - To the
main passage 213a, the following members are inserted from anopening 202a open in theunit attaching portion 202 in the following order: thevalve body spring 219, thevalve body 220, the valve body packing 221, a third auxiliary packing 222, apress fit member 223, and anozzle support member 224. The valve body packing 221 is slightly protruded from the third auxiliary packing 222 inward of themain passage 213a and forms a minute steppedportion 221b. In this embodiment, thevalve body 220 is a columnar body long in the direction in which themain passage 213a is extended. Avent hole 220a is formed in thevalve body 220. Thevent hole 220a connects together the end face of thevalve body 220 on theopening 202a side and the side surface of thevalve body 220. Aflange portion 220b is protruded in the side surface of thevalve body 220 between the opening of thevent hole 220a and thebranch passages 213b. Thevalve body spring 219 is positioned between theflange portion 220b and thespring receiving portion 213d and pushes thevalve body 220 toward theopening 202a. Thespring receiving portion 213d is provided at the boundary between themain passage 213a and thebranch passages 213b and is jutted inward of thecommunication passage 213. The valve body packing 221 forms a throughhole 221a into which thevalve body 220 gets. Theflange portion 220b of thevalve body 220 pushed by thevalve body spring 219 is pressed against the valve body packing 221. The third auxiliary packing 222,press fit member 223, andnozzle support member 224 prevent the movement of the valve body packing 221 toward theopening 202a. The opening of thevent hole 220a appearing in the side surface of thevalve body 220 is in contact with the inner circumferential surface of the throughhole 221a. As a result, themain passage 213a is interrupted. -
FIG. 7 is a left sectional view of thecommunication passage 213 with the unit attachedportion 122f attached thereto.FIG. 7 andFIG. 2 will be referred to. The unit attachedportion 122f has anozzle 122g. (Refer toFIG. 2 .) Thenozzle 122g communicates with thegas introduction passage 122e. The circumference of the tip of thenozzle 122g is slightly recessed and a minute steppedportion 122h is formed there. Thenozzle 122g is inserted from theopening 202a into themain passage 213a. Thenozzle support member 224 holds the side surface of the insertednozzle 122g to fill the gap between thenozzle support member 224 and thenozzle 122g. As a result, the internal space of the insertednozzle 122g and thevent hole 220a of thevalve body 220 communicate with each other. Then the tip of the insertednozzle 122g moves thevalve body 220 toward thebranch passages 213b. At this time, the minute steppedportion 221b of the valve body packing 221 and the minute steppedportion 122h of thenozzle 122g are engaged with each other. As a result, thevalve body 220 pushed by thenozzle 122g does not bump into thespring receiving portion 213d. This prevents thevalve body spring 219 from being compressed to interrupt themain passage 213a. As a result, the internal space of thenozzle 122g, thevent hole 220a, and themain passage 213a communicate with one other. InFIG. 6 , thevalve body 220 moved by thenozzle 122g is depicted by alternate long and short dash line. When thenozzle 122g is withdrawn from themain passage 213a, thevalve body spring 219 pushes thevalve body 220 toward theopening 202a and interrupts themain passage 213a. - A description will be given to a modification to the
second valve portion 212 with reference toFIG. 8 andFIG. 9 .FIG. 8 is a left sectional view of thecommunication passage 213. Thesecond valve portion 212 includes acheck valve 212a. Thecheck valve 212a is comprised of avalve ball 225 and the valve body packing 221. Thevalve ball 225 is placed in place of thevalve body 220 and is perfectly spherical. Thevalve ball 225 is pushed toward theopening 202a by thevalve body spring 219 and the pressure of compressed gas in thecommunication passage 213 and is pressed against the edge portion of the throughhole 221a. As a result, themain passage 213a is interrupted. -
FIG. 9 is a left sectional view of thecommunication passage 213 with the unit attachedportion 122f attached thereto. In this modification, acutout 122i is formed at the tip of thenozzle 122g. When thenozzle 122g is inserted from theopening 202a into themain passage 213a, the gap between thenozzle support member 224 and thenozzle 122g is filled. Then the tip of the insertednozzle 122g moves thevalve ball 225 toward thebranch passages 213b. As a result, the internal space of thenozzle 122g and themain passage 213a communicate with each other. At this time, the presence of thecutout 122i makes communication between the internal space of thenozzle 122g and themain passage 213a reliable. The minute steppedportion 221b of the valve body packing 221 and the minute steppedportion 122h of thenozzle 122g are engaged with each other. As a result, thevalve ball 225 pushed by thenozzle 122g does not bump into thespring receiving portion 213d. This prevents thevalve body spring 219 from being compressed to interrupt themain passage 213a. InFIG. 8 , thevalve ball 225 moved by thenozzle 122g is depicted by alternate long and short dash line. When thenozzle 122g is withdrawn from themain passage 213a, thevalve body spring 219 pushes thevalve ball 225 toward theopening 202a and interrupts themain passage 213a. - When attention is paid to that the
valve ball 225 shown inFIG. 8 andFIG. 9 is pushed by the pressure of compressed gas in thecommunication passage 213 and is pressed against the valve body packing 221, thevalve body spring 219 need not be provided. However, the presence of thevalve body spring 219 implements the following: when thenozzle 122g is withdrawn from themain passage 213a, thevalve ball 225 quickly moves to theopening 202a and themain 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 thevalve ball 225 like the receivingportions 215a shown inFIG. 6 andFIG. 7 . - The description will be back to the first embodiment.
FIG. 10 is a left sectional view of thebomb attachment device 201 with agas bomb 102 attached to only one gascartridge attachment portion 210. InFIG. 10 , the areas filled with compressed gas are filled with dots. A user inserts thegas bomb 102 from the gas bomb introduction port 204 (Refer toFIG. 1 ) into aplacement space 204a. At this time, thefirst end portion 102a is brought close to the corresponding gascartridge attachment portion 210 and thesecond end portion 102d is brought close to the correspondingbomb holder 206. Subsequently, the user rotates thecorresponding handle 208 so that thebomb holder 206 is moved toward the gascartridge attachment portion 210. As a result, theneedle portion 217a of thecorresponding tear part 217 is stuck into the sealingmaterial 102c of thegas bomb 102. (Refer toFIG. 4 as well.) Then compressed gas in thegas bomb 102 spouts out and gets into thecorresponding vent hole 217d and brings thevalve ball 214 away from the ball valve packing 215. As a result, the compressed gas passes through thecorresponding branch passage 213b and flows into themain passage 213a and increases the pressure in thecommunication passage 213 at a dash. - In the gas
cartridge attachment portion 210 without agas bomb 102 attached thereto (the left gascartridge attachment portion 210 inFIG. 10 ), the following takes place: thevalve ball 214 is pushed by the pressure in thecommunication passage 213 and is pressed against the receivingportion 215a of the corresponding ball valve packing 215. For this reason, the compressed gas does not leak from the gascartridge attachment portion 210 without agas bomb 102 attached thereto. - At the
second valve portion 212, thevalve body spring 219 pushes thevalve body 220 and themain passage 213a is interrupted. For this reason, the compressed gas does not leak from theunit attaching portion 202, either. -
FIG. 11 is a left sectional view of thebomb attachment device 201 with agas bomb 102 attached to every gascartridge attachment portion 210. InFIG. 11 , the areas filled with compressed gas are filled with dots. A user attaches agas bomb 102 also to a gascartridge attachment portion 210 without agas bomb 102 attached thereto in accordance with the same procedure. As a result, compressed gas gets into thecommunication passage 213 from both the gascartridge attachment portions 210. -
FIG. 12 is a left sectional view of thebomb attachment device 201 with agas bomb 102 attached to every gascartridge attachment portion 210 as is coupled to theair chamber body 122. InFIG. 12 , the areas filled with compressed gas are filled with dots. A user inserts thenozzle 122g provided in theair chamber body 122 into theopening 202a of theunit attaching portion 202. As a result, thegas introduction passage 122e in theair chamber body 122 and thecommunication passage 213 in thebomb attachment device 201 communicate with each other. Agas introduction portion 301 for guiding compressed gas from the gas bomb attached to each gascartridge attachment portion 210 into theair chamber 126 is formed. In this embodiment, as mentioned above, thegas introduction portion 301 can be freely coupled or decoupled by the unit attachedportion 122f and theunit attaching portion 202. A user moves the trigger 105 (Refer toFIG. 1 and the like) to shoot a bullet B (Refer toFIG. 1 and the like) out of the muzzle 103 (Refer toFIG. 1 and the like) of thetoy gun 101. Each time this occurs, compressed gas is supplied from thegas bombs 102 through thegas introduction portion 301 and is filled in theair chamber 126. -
FIG. 13 is a left sectional view of thebomb attachment device 201 with agas bomb 102 attached to only one gascartridge attachment portion 210 as is coupled to theair chamber body 122. InFIG. 13 , the areas filled with compressed gas are filled with dots. Even when thebomb attachment device 201 with agas bomb 102 attached to only one gascartridge attachment portion 210 as inFIG. 10 is coupled to theair chamber body 122, the user can use thetoy gun 101 without problems. This is because compressed gas does not leak from a gascartridge attachment portion 210 without agas bomb 102 attached thereto as mentioned above. Even when a user attaches thebomb attachment device 201 with agas bomb 102 attached to every gascartridge attachment portion 210 to thetoy gun 101 and thereafter removes onegas bomb 102, the following does not take place: compressed gas does not leak from a gascartridge attachment portion 210 without agas bomb 102 attached thereto. - When a user removes the
bomb attachment device 201 from thenozzle 122g, thevalve body spring 219 pushes thevalve body 220 toward theopening 202a and themain passage 213a is interrupted. As a result, compressed gas in agas bomb 102 does not leak from theopening 202a. - In the
toy gun 101 in this embodiment, as mentioned above,multiple gas bombs 102 can be attached. Each gascartridge attachment portion 210 can be closed by thefirst valve portion 211. For this reason, not a large-sized gas bomb 102, multiple small-sized gas bombs 102 can be used to use thetoy gun 101. Therefore, thetoy gun 101 can be used without the replacement of agas bomb 102 for a long time. At the same time, the portability of thegas bomb 102 is enhanced. In addition, since thegas bomb 102 can be reduced in size, thetoy gun 101 can be flexibly designed. As the result of afirst valve portion 211 being closed, bullets B can be shout out of thetoy gun 101 just by attaching onegas bomb 102 to thebomb attachment device 201. - In the
toy gun 101 in this embodiment, eachfirst valve portion 211 includes acheck valve 211a. For this reason, when a user attaches or detaches agas bomb 102, he/she need not open or close thefirst valve portion 211. - In the
toy gun 101 in this embodiment, thebomb attachment device 201 is provided with the gascartridge attachment portions 210,first valve portions 211,unit attaching portion 202, andsecond valve portion 212 as a unit. For this reason, the usability of thebomb attachment device 201 is enhanced. - In the
toy gun 101 in this embodiment, compressed gas does not leak even when thebomb attachment device 201 is removed from thenozzle 122g or somegas bombs 102 are removed from thebomb attachment device 201. For this reason, it is possible to remove thebomb attachment device 201 from thenozzle 122g and use agas bomb 102 attached to thebomb attachment device 201 later. It is also possible to attach thebomb attachment device 201 removed with agas bomb 102 attached thereto to adifferent toy gun 101. - A description will be given to another embodiment with reference to
FIG. 14 . This embodiment will be designated as second embodiment for convenience of explanation. In this case, the same parts as in the first embodiment will be marked with the same reference numerals and the description thereof will be omitted. -
FIG. 14 is a left sectional view of thetoy gun 101 with a gas bomb attached to every gascartridge attachment portion 210. InFIG. 14 , the areas filled with compressed gas are filled with dots. In this embodiment, an element corresponding to thebomb attachment device 201 in the first embodiment is integrally formed in theair chamber body 122. That is, a gasbomb attachment portion 201a is extended downward from theair chamber body 122 in this embodiment. In the gasbomb attachment portion 201a, ahousing space 203 is formed and the elements, such as the gascartridge attachment portion 210 and thefirst valve portion 211, provided in thebomb attachment device 201 are housed there. In this embodiment, thetoy gun 101 is not provided with thesecond valve portion 212. (Refer toFIG. 6 and the like.) Thegas introduction passage 122e and themain passage 213a are in common. Thetoy gun 101 is not provided with thespring receiving portion 213d (Refer toFIG. 6 ) positioned at the boundary between themain passage 213a and thebranch passages 213b, either. - Also in 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, thetoy gun 101 can be used without the replacement of agas bomb 102 for a long time. At the same time, the portability of thegas bomb 102 is enhanced. In thetoy gun 101 in this embodiment, in addition, the bomb attachment device 201 (Refer to the description of the first embodiment) will not be lost because theair chamber body 122 or the gasbomb attachment portion 201a is not separated from each other. - A description will be given to another embodiment with reference to
FIG. 15 andFIG. 16 . This embodiment will be designated as third embodiment for convenience of explanation. This embodiment is based on the second embodiment. In this case, the same parts as in the second embodiment will be marked with the same reference numerals and the description thereof will be omitted. -
FIG. 15 is a left sectional view of abomb unit 401. In this embodiment, theair chamber body 122,gas introduction portion 301, gascartridge attachment portions 210,first valve portions 211, andvalve 123 are unitized as thebomb unit 401. Thebomb unit 401 is equivalent to "attachment device" in WHAT IS CLAIMED IS. Thebomb unit 401 can be freely attached to and detached from theframe 111. The configuration of thebomb unit 401 is the same as the configuration of theair chamber body 122 in the second embodiment. That is, thebomb unit 401 includes theair chamber body 122 formed by extending the gasbomb attachment portion 201a and thevalve 123 housed in theair chamber body 122. Aflange portion 302 is extended from the side surface of thegas introduction portion 301. -
FIG. 16 is a left sectional view of thetoy gun 101. The lower surface of theframe 111 is provided with aslot 111a for inserting thebomb unit 401 from below. Aguide portion 111c is extended from the edge of theslot 111a inward of theframe 111. Theguide portion 111c guides thebomb unit 401. - A
stopper 111d is provided on a side surface of theframe 111. Thestopper 111d can be freely slid in the left-right direction of thetoy gun 101 and a user can move the stopper. Thestopper 111d holds theflange portion 302 of thebomb unit 401 inserted from theslot 111a and prevents thebomb unit 401 from being moved in the vertical direction. As illustrated inFIG. 16 , the upper surface of the front part of thestopper 111d can support the lower surface of the front end portion of theair 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 theair chamber body 122 to prevent thebomb unit 401 from being moved in the left-right direction of thetoy gun 101. Thebolt 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 agas bomb 102 attached to the gasbomb attachment portion 201a and inserts theair chamber body 122 of thebomb unit 401 upward from theslot 111a. Theair chamber body 122 is guided by theguide portion 111c and positioned in a position where thebarrel 113 and thevalve 123 are coaxially aligned with each other. At this time, theair chamber body 122 is sandwiched between the holding protrusions 111e. The user subsequently moves thestopper 111d to cause thestopper 111d holds theflange portion 302. When the user moves thetrigger 105 in this state, thebolt 121 advances and theabutment portion 121e (Refer toFIG. 2 ,FIG. 3 , and the like) pushes the slidingprotrusion 123b (Refer toFIG. 2 ,FIG. 3 , and the like). Compressed gas in theair chamber 126 passes through thegas discharge portion 194 and pushes a bullet B. As a result, the bullet B is shot out of themuzzle 103. - Also in 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, thetoy gun 101 can be used without the replacement of agas bomb 102 for a long time. At the same time, the portability of thegas bomb 102 is enhanced. In thetoy gun 101 in this embodiment, in addition, theair chamber body 122 can be replaced. Theair chamber body 122 includes theair chamber 126 andvalve 123 important for firing bullets B. For this reason, a user can replace thebomb unit 401 to enjoy various types of the feeling of shooting through thetoy gun 101. - As a modification to the third embodiment, the
magazine 112 may be attached to a side surface of the gasbomb attachment portion 201a of thebomb unit 401 as illustrated inFIG. 17 . - In the third embodiment and the modification thereto, the flange portion 302 (Refer to
FIG. 15 ,FIG. 16 , and the like) and thestopper 111d (Refer toFIG. 16 and the like) are used for the following purpose: to fix or release thebomb unit 401 to or from theframe 111. Instead, the bomb unit may be fixed to or released from theframe 111 as follows: - A description will be given to an example of a method for fixing and releasing the
bomb unit 401 to and from theframe 111. Theframe 111 is provided with a magazine release portion having a groove extended in the left-right direction. Thebomb unit 401 inserted from theslot 111a is engaged with the groove. When the magazine release portion is moved, the groove and thebomb unit 401 are disengaged from each other and themagazine 112 becomes removable. - A description will be given to another example of a method for fixing and releasing the
bomb unit 401 to and from theframe 111. A magazine catch having a tab portion and an operation lever portion is coupled to theframe 111. The tab portion of the magazine catch can freely advance or retreat to or from the lower surface of thevalve 123 and supports the lower surface of thevalve 123. The magazine catch is pushed by a spring and the like so that the tab portion gets into under the lower surface of thevalve 123. When a user moves the operation lever portion, the tab portion retreats from the lower surface of thevalve 123 and thebomb unit 401 can be freely inserted into or withdrawn from theslot 111a. When the user releases the operation lever portion, the tab portion moves and supports the lower surface of thevalve 123. As a result, thebomb unit 401 is fixed on theframe 111. - In any of the first to third embodiments, the
toy gun 101 is of rapid firing type and continuously fires bullets B as long as thetrigger 105 is pulled. However, the invention is also applicable to single firing toy guns and burst toy guns, needless to add. - In any of the first to third embodiments and the modifications thereto, a
gas bomb 102 is positioned ahead of thetrigger 105. However, the invention is also applicable to the following toy guns, needless to add: toy guns in which the place of attachment of thebomb attachment device 201 or thebomb unit 401 is provided behind thetrigger 105 so that agas bomb 102 can be positioned behind thetrigger 105. - The portions specifically described in relation to each embodiment and a modification thereto can be appropriately combined in other embodiments and modifications thereto, needless to add.
Claims (7)
- A toy gun comprising:a bullet holding portion holding a bullet;an air chamber body forming an air chamber;a gas discharge portion guiding compressed gas in the air chamber to a bullet held by the bullet holding portion;a valve establishing and breaking communication between the air chamber and the gas discharge portion;an operation portion opening or closing the valve;a plurality of 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; anda gas introduction portion guiding compressed gas from a gas cartridge attached to each of the gas cartridge attachment portions into the air chamber.
- The toy gun according to Claim 1,
wherein each of the first valve portions includes a check valve. - The toy gun according to Claim 1 or 2,
wherein the gas introduction portion includes: a unit attached portion provided on the air chamber side; and a unit attaching portion that is provided on the gas cartridge attachment portion side and can be freely attached to and detached from the unit attached portion, and can be freely coupled and decoupled,
wherein the unit attaching portion is provided with a second valve portion, and
wherein the gas cartridge attachment portions, the first valve portions, the unit attaching portion, and the second valve portion are configured as a unit and can be attached and detached as a whole. - The toy gun according to Claim 3,
wherein the second valve portion includes a check valve. - The toy gun according to Claim 1 or 2,
wherein the air chamber body, the gas introduction portion, the gas cartridge attachment portions, the first valve portions, and the valve are configured as a unit and can be attached and detached as a whole. - An attachment device comprising:a plurality of 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 of the gas cartridge attachment portions into the toy gun;a first valve portion provided in each of the gas cartridge attachment portions; anda second valve portion provided in the unit attaching portion.
- An attachment device comprising:an air chamber body that can be freely attached to and detached from a toy gun having a bullet holding portion for holding a bullet and forms an air chamber;a gas discharge portion provided in the toy gun and guiding compressed gas in the air chamber to a bullet held by the bullet holding portion;a valve opening or closing communication with the air chamber;a plurality of 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; anda gas introduction portion guiding compressed gas from a gas cartridge attached to each of the gas cartridge attachment portions into the air chamber.
Priority Applications (1)
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EP20120000323 EP2618096B1 (en) | 2012-01-19 | 2012-01-19 | Attachment device for gas cartridges of a toy gun |
Applications Claiming Priority (1)
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EP20120000323 EP2618096B1 (en) | 2012-01-19 | 2012-01-19 | Attachment device for gas cartridges of a toy gun |
Publications (2)
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EP2618096A1 true EP2618096A1 (en) | 2013-07-24 |
EP2618096B1 EP2618096B1 (en) | 2014-03-26 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3521800A1 (en) * | 1985-03-12 | 1986-09-25 | Victor Lienz Idl | Barrel-changing system for a pistol |
JPH0741292U (en) | 1993-12-13 | 1995-07-21 | 有限会社マルゼン | Toy gun |
DE10116010A1 (en) * | 2001-03-30 | 2002-10-02 | Umarex Gmbh & Co Kg | Compressed gas-operated shot device and pressure supply device for such a shot device |
US20070062510A1 (en) * | 2005-09-22 | 2007-03-22 | Lester Broersma | Multiple cannister supply paintball marker |
US7290539B2 (en) | 2005-05-23 | 2007-11-06 | Maruzen Company Limited | Air gun cartridge attachment and detachment apparatus |
-
2012
- 2012-01-19 EP EP20120000323 patent/EP2618096B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3521800A1 (en) * | 1985-03-12 | 1986-09-25 | Victor Lienz Idl | Barrel-changing system for a pistol |
JPH0741292U (en) | 1993-12-13 | 1995-07-21 | 有限会社マルゼン | Toy gun |
DE10116010A1 (en) * | 2001-03-30 | 2002-10-02 | Umarex Gmbh & Co Kg | Compressed gas-operated shot device and pressure supply device for such a shot device |
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 |
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