Automatic paint ball gun

Abstract

A paint ball gun has a gun body and a trigger assembly therein. The gun body has a first chamber, a second chamber and a tunnel between the first and the second chambers. A rod, a percussion member and a shaft are provided in the first chamber, the second chamber and the tunnel respectively. A rear block connects the rod and the percussion member. A valve is provided in the first chamber and activated by the rod. A controller is provided in the gun body, has a guiding channel to be manipulative for communication the first chamber and the tunnel and an exhausting channel to be manipulative for communication with the tunnel. The trigger assembly is manipulative to issue the gas in the first chamber to the second chamber for movement the shaft and to exhaust the gas in the tunnel after moving the shaft out.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a paint ball gun, and more particularly to a paint ball gun, which the percussion member is reciprocated repeatedly and automatically.

2. Description of the Related Art

FIG. 11 shows a conventional paint ball gun, which has a gun body 6 and a stock 7. The gun body 6 has a rod 61 and a percussion member 62 to shoot paint balls, which are moved by a rear block 63. A barrel 65 is provided at a front of the gun body 6, which is connected to a chamber installed with the percussion member 62. A pump 64 is mounted beside the barrel 65, which has a piston 641 and a shaft 642 therein. The shaft 642 is connected to the rear block 63 to drive it for movement. The stock 7 has a trigger 71 and a three-position valve 72. The trigger 71 is pulled to activate the valve 72 and the valve 72 provides gas to the pump 64 via a hose 66 to move the piston 641. The piston 641 moves the percussion member 62 via the shaft 642, the rear block 63 and the rod 61 to feed the paint ball for shooting.

The gun shoots the paint balls by high-pressure gas and some of the gas flows into the pump 64 to move the piston 641. To prevent the high-pressure gas from breaking the hose 66, a pressure adjuster 8 is provided to reduce the pressure. The pressure adjuster 8 increases the cost of the paint ball gun and a front block 67 is provided to mount the pressure adjuster 8, the valve 72 and the pump 64 on the gun, which increases the cost again.

The pump 64, the piston 641, the shaft 642 and the pressure adjuster 8 are exposed out of the gun without any shield for protection, they might be impacted unexpectedly. While the pump 64, the piston 641 or the shaft 642 is impacted and deformed, they cannot work normally anymore.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a paint ball gun, which is provided with a controller to control the gas issuing into the chamber to move the shaft for reciprocation of the percussion member automatically. The paint ball gun of the present invention has no the pressure adjuster, the front block and the hose that decrease the cost of the gun.

The secondary objective of the present invention is to provide a paint ball gun, which the controller is received in the gun. The shell of the gun shields the controller to prevent it from being impacted and deformed. The paint ball gun functions normally even when the shooter carrying the gun for a heavy excise.

According to the objectives of the present invention, a paint ball gun comprises a gun body with a handle and a trigger assembly installed in the handle. The gun body has a first chamber, a second chamber and a tunnel between the first chamber and the second chamber. A rod is provided in the first chamber, a percussion member is provided in the second chamber and a shaft is provided in the tunnel. A rear block connects the rod and the percussion member. A valve is provided in the first chamber and activated by the rod to issue gas into the second chamber. A controller is provided in the gun body associated with the first chamber and the tunnel. The controller has a guiding channel to be manipulative for communication the first chamber and the tunnel and an exhausting channel to be manipulative for communication with the tunnel. The trigger assembly is manipulative to issue the gas in the first chamber to the second chamber for movement the shaft and to exhaust the gas in the tunnel after moving the shaft out.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a sectional view of a first preferred embodiment of the present invention;

FIG. 2 is an exploded view of the controller of the first preferred embodiment of the present invention;

FIG. 3 is a sectional view of the first preferred embodiment of the present invention, showing the action of how the high-pressure gas moves the shaft;

FIG. 4 is a sectional view of the first preferred embodiment of the present invention, showing the guiding block returning for exhaustion of the gas;

FIG. 5 a sectional view of the first preferred embodiment of the present invention, showing the action of the rod;

FIG. 6 a sectional view of a second preferred embodiment of the present invention;

FIG. 7 is an exploded view of the controller of the second preferred embodiment of the present invention;

FIG. 8 is a sectional view of the second preferred embodiment of the present invention, showing the movement of the guiding block to let the high-pressure gas moving the shaft via the first section and the second section of the guiding block;

FIG. 9 is a sectional view of the second preferred embodiment of the present invention, showing the return of the guiding block to exhaust gas;

FIG. 10 is a sectional view of the second preferred embodiment of the present invention, showing the action of the rod, and

FIG. 11 is perspective view of the conventional paint ball gun.

DETAILED DESCRIPTION OF THE INVENTION

As shown in FIGS. from FIG. 1 to FIG. 5, a paint ball gun of the first preferred embodiment of the present invention has a gun body 1, which has a handle 17 and a trigger assembly 18 in the handle 17. The gun body 1 has a first chamber 11 and a second chamber 12 therein, wherein a rod 21 is mounted in the first chamber 11 and a percussion device 2 is mounted in the second chamber 12. A rear block 22 is provided in the gun body 1 to connect the percussion device 2 and the rod 21 and a shaft 23 is connected to the rear block 22 to move it. A valve 24 is mounted in the first chamber 11 activated by the rod 21 to issue gas into the second chamber 12. A controller 3 is mounted in the gun body associated with the first chamber 11 and the shaft 23. The controller 3 has a first channel, which issue gas to the shaft 23 from the first chamber 11, and a second channel, which exhaust the gas out of the gun body 1. The controller 3 is activated by the trigger assembly 18 for switch of the first channel and the second channel and to reciprocate the percussion member 2 repeatedly.

In the first preferred embodiment of the present invention, the first and the second chambers 11 and 12 are arranged in parallel in the gun body 1 and an aperture 13 is provided to connect the first and the second chambers 11 and 12. The valve 24 is mounted at between the first chamber 11 and the aperture 13. The rod 21 and the percussion device 2 are mounted in left ends (referring to FIG. 1) of the first and the second chambers 11 and 12 respectively and are bonded to the rear block 22. A barrel 14 is secured to the gun body 1 and is communicated with the second chamber 12. An inlet portion 15 is mounted at a front of the gun body 1 and connected to the first chamber 11. The gun body 1 further has a tunnel 16 between the first and the second chambers 11 and 12, in which the shaft 23 is received and is connected to the rear block 22. A spring 231 is received in the tunnel 16 and fitted to the shaft 23. The controller 3 is mounted at between the valve 24 and the inlet portion 15 and beside the trigger assembly 18 of the handle 17. The trigger assembly 18 has a trigger 181 and a tenon 182 connected to the trigger 181.

The controller 3 has a housing 31 and a chamber 311 in the housing 31. The housing 311 has two first bores 312 communicating the chamber 311 with the first chamber 11 and two second bores 313 communicating the tunnel 16. A guiding block 32 is received in the chamber 311 of the controller 3 for movement. The guiding block 32 has a guiding channel 321 therein and an annular exhausting channel 323 on a circumference thereof. The exhausting channel 323 is communicated with the second bores 313 of the housing 31 at a normal condition. A linkage 33 connects the guiding block 32 and the trigger 181 of the trigger assembly 18, so that the guiding block 32 moved by pulling of the trigger 181.

As shown in FIG. 3 to FIG. 5, while the trigger 181 of the trigger assembly 18 is pulled, it moves the guiding block 32 downward via the linkage 33 and the guiding channel 321 has ends communicated with the first bores 312 and the second bore 313 of the housing 311 respectively. High-pressure gas is issued into the first chamber 11 from the inlet portion 15 and flows to the tunnel 16 via the guiding channel 321 to move the shaft 23 and the rear block 22 backward. Now, the pain ball can run into the second chamber 12 and the rod 21 is locked to the tenon 182 of the trigger assembly 18 to be ready for shooting. In the meantime, the guiding block 32 is moved upward and the guiding channel 321 is not communicated with the first bores 312 and the second bore 313 of the housing 311 anymore to stop issuing the high-pressure gas. The exhausting channel 323 of the guiding block 32 now is communicated with the second bores 313 of the housing 311 to exhaust the gas in the tunnel 16 while the shaft 23 is moved back by the spring 231. Now, the trigger assembly 18 is pulled again to release the rod 21 and the rod 21 moves forward to activate the valve 24, so that the gas in the first chamber 11 is issued into the second chamber 12 via the aperture 13 for shooting the pain ball. In the meantime, the guiding block 32 is moved downward to communicate the guiding channel 321 with the first bores 312 and the second bore 313 again and to issue the gas into the tunnel 16, so that the shaft 23 and the rear block 22 are moved backward again for the next time of shooting.

FIG. 6 to FIG. 10 show a paint ball gun of the second preferred embodiment of the present invention, which is similar to the paint ball gun of the first preferred embodiment, except that a controller 4 has a housing 41 and a chamber 411 in the housing 41. A first guiding block 42 and a second guiding block 43 are received in the chamber 411. The first guiding block 42 is associated with the tunnel 16 and is manipulative for rotation. The second guiding block 43 is associated with the tunnel 16 and is fixed in the chamber 411. The first guiding block 42 is attached on the second guiding block 43 via contacting surfaces 421 and 431. An axle 44 runs through the second guiding block 43 and is secured to the first guiding block 42. The axle 44 is driven by the trigger assembly 18 for rotation to rotate the first guiding block 42. The controller has a guiding channel with a first section 422 in the first guiding block 42 and a second section 432 in the second guiding block 43. The first section 422 and the second section 432 of the guiding channel are open at the contacting surfaces 421 and 431 of the first and second guiding blocks 42 and 43 respectively and are communicated with a first bore 412 and a second bore 413 of the housing 411. The first guiding block 42 has an exhausting channel 423 beside the first section 422.

As shown in FIG. 8 to FIG. 10, while the trigger assembly is pulled, the trigger 181 of the trigger assembly 18 rotates the axle 44 and the first guiding block 42 to align the first section 422 of the guiding channel to the second section 432 of the second block 43 and to a second bore 413 of the housing 41. High-pressure gas issued to the first chamber 11 from the inlet portion 15 flows to the tunnel 16 via the first second 422 and the second section 432 of the guiding channel to move the shaft 23 and the rear block 22 backward. In the meantime, the percussion member 2 and the rod 21 are moved backward to fee the pain ball to the second chamber 12. The rod 21 is engaged with the tenon 182 of the trigger assembly to be ready for shooting. The first guiding block 42 is turned reversely to make the first section 422 of the first guiding block 42 no longer aligned with the second bore 413 of the housing 41 and the second section 432 of the second guiding block 43 and the exhausting channel 423 of the first guiding block 42 is aligned with the second bore 413 of the housing, so that the high-pressure gas is stopped by the first guiding block 42 and the gas in the tunnel 16 is exhausted out of the housing 41 via the second bore 314 while the shaft 23 returns by the spring 231. Now, the trigger assembly 18 can be pulled again to release the rod 21 to let it moves forward and activate the valve 24. And then, the gas in the first chamber 11 is issued to the second chamber 12 via the aperture 13 to shoot the pain ball in the second chamber 12. In the meantime, the first guiding block 42 is rotated reversely to issue the gas into the tunnel 16 and move the shaft 23 and the rear block 22 backward again.

The present invention provides the controller in the housing associated with the first chamber and the shaft to control the gas in the first chamber to move the shaft and to reciprocate the percussion member automatically. The paint ball gun is provided with no the hose, the pressure controller and the front block as the conventional paint ball gun has. It reduces the cost of manufacture and increases the competition in the present market.

The controller is installed in the housing to be protected thereby. In the action of shooting, the controller is not easy to be impacted that makes sure the paint ball gun having a correct function of shooting and elongates the product's life.

Claims

1. A paint ball gun, comprising: a gun body with a handle and a trigger assembly installed in the handle, wherein the gun body has a first chamber, a second chamber and a tunnel between the first chamber and the second chamber and a rod is provided in the first chamber, a percussion member is provided in the second chamber and a shaft is provided in the tunnel; a rear block connecting the rod and the percussion member; a valve provided in the first chamber and activated by the rod to issue gas into the second chamber; a controller provided in the gun body associated with the first chamber and the tunnel, wherein the controller has a guiding channel to be manipulative for communication the first chamber and the tunnel and an exhausting channel to be manipulative for communication with the tunnel, whereby the trigger assembly is manipulative to issue the gas in the first chamber to the second chamber for movement the shaft and to exhaust the gas in the tunnel after moving the shaft out.

2. The paint ball gun as defined in claim 1, wherein the first chamber is parallel to the second chamber and an aperture is provided to communicate the first chamber, the second chamber and the valve is mounted at where adjacent to the aperture, the rod and the percussion member are located at ends of the first chamber and the second chamber and are bonded to the rear block, a barrel is connected to an end of the second chamber, an inlet portion is provided and communicated with an end of the first chamber, the tunnel is parallel to the first chamber and the second chamber, the shaft in the tunnel has an end extruded out of the tunnel and bonded to the rear block, a spring is received in the tunnel and is fitted to the shaft, the controller is located at between the valve in the first chamber and the inlet portion and adjacent to the trigger assembly in the handle and the trigger assembly has a trigger and a tenon connected to the trigger.

3. The paint ball gun as defined in claim 2, wherein the controller has a housing installed in the gun body and a chamber in the housing, the housing has a first bore associated with the first chamber, a second bore associated with the tunnel and a guiding block is received in the chamber of the controller for movement, which has the guiding channel therein and the exhausting channel on a circumference thereof, wherein the exhausting channel is communicated with the second bore in a normal condition.

4. The paint ball gun as defined in claim 3, wherein the guiding block is connected to the trigger assembly via a linkage, so that the guiding is driven for movement by the activation of the trigger assembly.

5. The paint ball gun as defined in claim 2, wherein the controller has a housing installed in the gun body and a chamber in the housing, the housing has a first bore associated with the first chamber, a second bore associated with the tunnel and a first guiding block and a second guiding block are received in the chamber of the controller, wherein the first guiding block is attached on the second guiding block and is rotary, the guiding channel has a first section in the first guiding block and a second section in the second guiding block and the first section and the second section of the guiding channel are communicated with the first bore and the second bore respectively and the first guiding block has the exhausting channel, whereby the first guiding block is rotated to communicate the first section and the second section of the guiding channel or not.

6. The paint ball gun as defined in claim 5, wherein an axle runs through the second guiding block and bonds to the first guiding block and the trigger assembly is connected to the axle to drive it rotating and to drive the first guiding block rotating.