PERCUSSION CONTROLLING MECHANISM OF PAINTBALL GUNS

Abstract

A percussion controlling mechanism of paintball guns includes a percussion member and an air valve separately installed in a gun body. A main air passage is located in front of and separated from the air valve by a spring. Located behind the air valve is a driving chamber having a driving member. An air sub-passage is formed under the air valve chamber for communicating with the main air passage. A driving valve is installed in a grip to correspond to the driving chamber, having an ever-opened buffering hole communicating with a front end of the driving chamber and the air sub-passage, and a driving hole communicating with a rear end of the driving chamber. By means of the air sub-passage to provoke a difference of pressure in the driving chamber, the backlash of percussion can be greatly lowered to boost speed of continuous shooting.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a paintball gun, particularly to its percussion controlling mechanism.

2. Description of the Prior Art

As shown in FIG. 1, a conventional percussion controlling mechanism of paintball guns is composed of a gun body 1, a grip 2 integrally extended downward from a bottom of a rear end of the gun body 1, a percussion member 3 positioned in a front end of the gun body 1, an inlet 4 formed at the rear end of the gun body 1, a driving member 5 located between the percussion member 3 and the inlet 4, a spring 6 mounted around the driving member 5, and an electromagnetic valve 7 installed inside the grip 2 for controlling air to pass in. In firing, with the electromagnetic valve 7, air is controlled to pass in through the inlet 4 to push the driving member 5 to squeeze the spring 6 and impact the percussion member 3. After percussion, the driving member 5 is automatically moved back to its original position by the spring 6. Thus, with the firing operation repeatedly done, a continuous percussion can be carried out. As described above, the conventional paintball gun mainly takes advantage of the electromagnetic valve 7 to control air pass in and out; when the pressure in the inlet 4 is larger than the potential force of the spring 6, the driving member 5 can be pushed to squeeze the spring 6 to impact the percussion member 3 to fire a paintball (not shown in Figures); with the elasticity of the spring 6, the driving member 5 is pushed backed to its original position. However, as there is not a buffer for relieving the elastic force rendered while the spring 6 stretches backward, the gun body 1 is to be forcefully vibrated to lower its steadiness after firing. Moreover, the interval between two continuous percussions can not be effectively shortened because the switch of the electromagnetic valve 7 takes a long period of time to control the inlet 4.

SUMMARY OF THE INVENTION

The object of this invention is to offer a percussion controlling mechanism of paintball guns.

The invention includes a percussion member and an air valve separately installed in a gun body. A main air passage is located in front of and separated from the air valve by a spring. Located behind the air valve is a driving chamber provided with a driving member. An air sub-passage is formed under the air valve chamber for communicating with the main air passage. A driving valve is installed in a grip to correspond to the driving chamber, provided with an ever-opened buffering hole for communicating with a front end of the driving chamber and the air sub-passage, and a driving hole for communicating with a rear end of the driving chamber. By means of the air sub-passage to provoke a difference of pressure in the driving chamber, the backlash of percussion can be greatly lowered to boost speed of continuous shooting.

BRIEF DESCRIPTION OF DRAWINGS

This invention is better understood by referring to the accompanying drawings, wherein:

FIG. 1 is a side cross-sectional view of a percussion controlling mechanism of a conventional paintball gun;

FIG. 2 is a side cross-sectional view of a preferred embodiment of a percussion controlling mechanism of paintball guns in the present invention;

FIG. 3 is a side cross-sectional view of the preferred embodiment of a percussion controlling mechanism of paintball guns in the present invention, showing it before percussion; and

FIG. 4 is a side cross-sectional view of the preferred embodiment of a percussion controlling mechanism of paintball guns in the present invention, showing it after percussion.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

As shown in FIG. 2, a preferred embodiment of a percussion controlling mechanism of paintball guns is installed in a gun body 101 and a grip 100 integrally extended from a bottom of a rear end of the gun body 101, composed of a percussion chamber 10, an air valve chamber 20, a driving chamber 30, an air sub-passage 40 and a driving valve 50.

The percussion chamber 10 is located in a top portion of the gun body 100, provided with a paintball outlet 11 formed at its front end, a paintball inlet 12 bored above a front top of the paintball outlet 11 to communicate with it for a paintball 200 to drop in, a percussion member 13 installed behind the paintball inlet 12, and a percussion air passage 14 formed in the percussion member 13.

The air valve chamber 20 is separately formed under the percussion chamber 10 in the gun body 100, provided with a main air passage 21 formed at its front portion with an opening 211 facing downward and sealed with a pressurized bottle 300. In addition, an air valve 22 is provided in the air valve chamber 20 and separated from the main air passage 21 by a spring 23, mainly provided with a valve base 221, and a valve hole 222 bored in a top of the valve base 221 for corresponding to the percussion chamber 10. Bored between the air valve chamber 20 and the percussion chamber 10 are a through hole 24 and a driving hole 25, with the through hole 24 communicating with the valve hole 222. An opening 223 is recessed in the valve base 221 for communicating with the valve hole 222. And, axially and pivotally installed in the valve base 221 is a valve rod 224 having its front portion correspondingly capped by a valve cap 225 connected with the spring 23.

The driving chamber 30 is formed behind the air valve 22, provided with a driving member 31 therein, a linking block 32 mounted on a front portion of the driving member 31 for corresponding to the air valve chamber 20, and a bolt 33 orderly inserted through the percussion member 13 and the driving hole 25 and having its end section fitting in one end of the linking block 32. In addition, a driving rod 34 has its front portion fixed with the rear end of the linking block 32 and its rear portion extended in the driving chamber 30, with a buffering gap (a) formed between its circumference and the driving chamber 30, and a driving block 35 is projectingly formed at a rear end of the driving rod 34, having an outer diameter equivalent to the inner diameter of the driving chamber 30, with a driving gap (b) formed between its rear end and the driving chamber 30.

The air sub-passage 40 is separately positioned under the air valve chamber 20, having its one end communicated with the main air passage 21 and another one communicated with the driving chamber 30, so as to transmit the air in the main air passage 21 into the buffering gap (a) of the driving chamber 30.

The driving valve 50 is installed in the grip 101 next to the driving chamber 30, provided with an ever-opened buffering hole 51 formed at one side of its top, and a driving hole 52 located at another side of its top. The ever-opened buffering hole 51 has its one end always opened to communicate with the air sub-passage 40 and another one communicated with the buffering gap (a), so as to let the pressurized air in the air sub-passage 40 to run into the driving chamber 30. The driving hole 52 is communicated with the driving gap (b) behind the driving chamber 30 for air to run through to push the driving member 31 toward the air valve 22. And, a vent 53 is positioned at one side of a bottom of the driving valve 50, corresponding to the ever-opened buffering hole 51.

In order to further understand the structural features, operative techniques and expected effects of the invention, how to use the invention is to be described below.

First, as shown in FIG. 3, through the paintball inlet 12, a paintball 200 is loaded in the percussion chamber 10 in front of the percussion member 13 in case of preparing for percussion. By the time, as the air valve 22 is closed, the pressurized air in the main air passage 21 is to flow through the air sub-passage 40 and then, respectively flow through the ever-opened buffering hole 51 and the driving hole 52 to enter the buffering gap (a) and the driving gap (b) in the driving chamber 30.

Second, as shown in FIG. 4, when firing the paintball gun, the air running through the driving hole 52 is larger than that running through the ever-opened buffering hole 51, keeping the pressure in the driving gap (b) larger than that in the buffering gap (a), so as to push the driving member 31 toward the air valve 22. Meanwhile, the air in the buffering gap (a) is released to enter the air sub-passage 40 and flow back to the main air passage 21 and the air valve chamber 20. And, while moving the driving member 31, the bolt 33 is to be synchronously moved to orderly push forward the percussion member 13 and the paintball 200. By the time, the linking block 32 is also moved to press the valve rod 224 moving forward to disclose the valve cap 225, which is to successively squeeze the spring 23. When the percussion air passage 14 is moved to correspond to the through hole 24, the pressurized air flowing from the main air passage 21 to the air valve chamber 20 can pass through the opening 223 to enter the valve hole 222, the through hole 24 and the percussion passage 14 in order, so as to shoot out the paintball 200.

After percussion, the air in the driving hole 52 of the driving valve 50 is released from the vent 53. By the time, the driving hole 52 is successively closed to enable the pressurized air to enter the buffering gap (a) through the ever-opened buffering hole 51, posing the pressure in the buffering gap (a) greater than that in driving gap (b) so that the driving member 31 is to be moved away from the air valve 22 and back to its original position. Consequently, the bolt 33 is also moved to draw the percussion member 13 back to its original position, cutting off the communication between the percussion passage 14 and the through hole 24. The air valve 224 is as well elastically forced by the spring 23 to get back to its original position while the driving member 31 is being drawn back to stop pushing the air valve 224, with the opening 223 blocked by the valve cap 225. And, with the pressurized air entering the buffering gap (a), it can lessen the backlash caused by the rebound of the spring 23 to advance operative smoothness, stepping up not only the speed of continuous shooting but the hitting probability.

While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.

Claims

1. A percussion controlling mechanism of paintball guns, said guns respectively including a gun body and a grip integrally extended from a bottom of a rear end of said gun body, said percussion controlling mechanism comprising a percussion chamber and an air valve chamber formed separately divided in said gun body, said percussion chamber provided with a paintball inlet bored in its top, a percussion member installed behind said paintball inlet and inserted with a bolt and dug with a percussion air passage, said air valve chamber provided with an air valve, a main air passage formed at a front portion of said air valve chamber and separated from said air valve by a spring, an valve hole bored in a top of said air valve for corresponding to said percussion chamber, a driving chamber formed behind said air valve and provided with a driving member installed inside it, a through hole and a driving hole formed between said percussion chamber and said air valve chamber and communicating to each other, said bolt inserted through said driving hole to position in said driving member, said percussion controlling mechanism characterized by; an air sub-passage separately positioned under said air valve chamber and having its one end communicated with said main air passage and another one communicated with said driving chamber so as to transmit air in said main air passage into said driving chamber; anda driving valve installed in said grip to correspond to said driving chamber and provided with an ever-opened buffering hole and a driving hole, said ever-opened buffering hole having its one end communicating with a front end of said driving chamber close to said air valve and another one communicating with said air sub-passage so as to let said air sub-passage transfer buffering air to run into said driving chamber, said driving hole communicating with said driving chamber behind said driving member for air to run through to push said driving member toward said air valve, a vent positioned at one side of a bottom of said driving valve to correspond to said ever-opened buffering hole.

2. The percussion controlling mechanism of paintball guns as claimed in claim 1, wherein said air valve is provided with a valve base, a valve hole bored in said valve base for corresponding to said percussion chamber, an opening recessed in said valve base for communicating with said valve hole, a valve rod axially and pivotally installed in said valve base and having its front and rear portion extended in said air valve chamber, a valve cap mounted on said valve rod to correspond to said opening.

3. The percussion controlling mechanism of paintball guns as claimed in claim 1, wherein said driving chamber is provided with a linking block mounted on a front portion of said driving member to correspond to said air valve chamber, said bolt inserted in said linking block and said percussion member to keep them linked with each other, a driving rod having its front portion connected to a rear portion of said linking block and its rear portion extended in said driving chamber so as to have a buffering gap formed between its circumference and said driving chamber for communicating with said ever-opened buffering hole, a driving block positioned at a rear end of said driving rod and having an outer diameter equivalent to an inner diameter of said driving chamber so as to have a driving gap formed between its rear end and said driving chamber 30 for communicating with said driving hole.

4. The percussion controlling mechanism of paintball guns as claimed in claim 1, wherein said main air passage has its opening sealed with a pressurized bottle.