KR200366088Y1 - Pneumatic nail gun - Google Patents

Abstract

The present invention relates to a pneumatic nail gun, comprising a partition plate located in the hollow body of the nail gun to form an inner space portion and an outer space portion, the piston is movable to the inner space portion, the propulsion means is the rear end of the partition plate In order to move the airtight seal in the inner space, two vents are formed in the partition plate, and when the trigger is pulled, compressed air flows into the inner space through one of the two vents, and compressed air flows into the outer space through the remaining vents. When the compressed air is discharged into the inner space through the remaining vents, the piston is returned to the ready to launch state, the piston diameter in the structure surface may have the same size as the inner diameter of the inner space of the body. do.

Description

Pneumatic nail gun {PNEUMATIC NAIL GUN}

The present invention relates to a pneumatic nail gun in which the body itself functions as a cylinder to accommodate a large piston.

The conventional pneumatic nail gun shown in FIG. 1 has a main passage 11a and a handle 1a connected to the body 10a so as to be connected to a body 10a in which the cylinder 24a is accommodated and a compressor hose (not shown). ). The piston 25a is movably received in the cylinder 24a. The trigger valve 4a includes a trigger 5a which is accommodated in a space 12a formed in front of the handle 1a and which can be adjusted by the user. A propulsion means 22a is movably coupled to the rear end of the cylinder 24a, and a spring 21a is installed between the propulsion means 22a and an end cap 2a attached to the rear end of the nail gun body. do. A cylinder positioning ring 23a is mounted to the rear end of the cylinder 24a to apply pressure to the inner surface of the body 10a. The pushing means 22a movably closes the end of the cylinder 24a by the spring 21a. The main passage 11a is connected to the annular space portion formed between the rear end of the cylinder 24a and the propulsion means 22a, and the vent is connected to the main passage 11a and the space portion 12a. Is formed on the wall. The tube 3a is laterally connected between the space part 12a and the recessed part 14a formed in the inner surface of the handle 1a. The first passage 20a is formed in the cap 2a and is connected to the annular space between the cap 2a and the propulsion means 22a. The pushing means 22a is pushed by the spring 21a to seal the rear end of the cylinder 24a, and the compressed air flowing from the first passage 20a exerts a pushing force on the pushing means 22a, so that the piston 25a It is placed in the ready to launch state as shown.

2 and 3, when the safety means 55a is pushed and the trigger 5a is pulled, the trigger valve 4a to allow the compressed air in the annular space between the cap 2a and the propulsion means 22a to be discharged. ) Actuates to close the vent, and the pushing means (22a) is pushed toward the cap (2a) of the cylinder (24a) by the compressed air introduced through the slot of the cylinder positioning ring (23a) mounted on the cylinder (24a) Away from the end. Compressed air flows into the cylinder 24a to push the piston 25a from the gap obtained by the movement of the propulsion means 22a so that the nail is launched by the launch plate connected to the piston 25a. Air in the cylinder 24a flows into the space portion 100a between the inner side of the nail gun body 10a and the cylinder 24a through the vent 240a formed in the cylinder 24a.

In FIG. 4, when the trigger 5a is released, the compressed air is pushed into the space portion 12a so as to push the pushing means 22a to seal the end of the cylinder 24a again by the force of the spring 21a and the compressed air. And, again, through the annular space between the propulsion means 22a and the cap 2a through the tube 3a and the first passage 20a. Therefore, the compressed air in the space portion 100a flows into the cylinder 24a through the vent 240a of the cylinder 24a, and the piston 25a returns to the ready to fire position.

The size of the cylinder is limited according to the diameter of the body 10a of the nail gun, and in the case of firing a large nail, a large body is required to accommodate the large cylinder. This increases the overall size of the nail gun and makes it heavy. In addition, the structure becomes very complicated and includes too much inconvenience to use.

The present invention provides a pneumatic nail gun having a body that can function as a larger cylinder than a conventional pneumatic nail gun without increasing the size of the body.

1 is a conventional pneumatic nail gun, showing a state before the trigger is pulled,

2 and 3 are views showing the trigger and the safety device of the conventional pneumatic nail gun is pulled,

4 is a view showing a state in which the trigger of the conventional pneumatic nail gun;

Figure 5 is a schematic partial perspective view of the interior of the pneumatic nail gun of the present invention and the piston accommodated therein,

Figure 6 is a view showing the rear end of the pneumatic nail gun of the present invention,

7 is a view showing a state before the trigger of the pneumatic nail gun of the present invention,

8 and 9 are views showing the trigger and the safety device of the pneumatic nail gun of the present invention is pulled,

10 shows a state where the trigger is released and the piston retracts back after the nail has been fired, and

11 is a view showing another embodiment of the pneumatic nail gun of the present invention.

* Explanation of symbols for main parts of the drawings

1, 1a: handle 2, 2a: cap

3, 25a: piston 4, 22a: propulsion means

6, 5a: trigger 4a, 7: trigger valve

11, 11a: main passageway 30: launch pad

100: split plate 3a, 112: tube

The present invention relates to a pneumatic nail gun, and comprises a hollow body (hollow body) to which the handle is connected, the main passage is formed in the handle. A cap is attached to the rear end of the body. A partition plate is provided in the inner space portion of the body, and the partition plate divides the inner space portion and the outer space portion in the body. The piston is movably received in the inner space portion of the body and the launch plate is connected to the piston and is movably inserted through the barrel. The main passage is connected to the inner space part. A recess is formed in the wall of the handle, and the recess forms an opening connected to the main passage. The trigger valve is accommodated in the recess, and the trigger is connected to the trigger valve. The trigger valve movably closes the opening when pulled. A first passageway is formed in the wall of the handle, and a tube is connected between the handle wall and the cap so that the first passageway, the second passage formed in the tube and the cap, is connected. The propulsion means is movably connected inside the cap, and a spring is provided between the propulsion means and the cap so that the propulsion means is movably sealed to the first open end of the body. The second passage is connected with the space in which the propulsion means is accommodated. The second passage is closed by the pushing means when the pushing means is pushed toward the cap. A first vent is formed in the divider plate and is disposed close to the rear end of the body. The second vent is formed in the divider plate and is disposed close to the rear end of the body.

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in more detail below with reference to the accompanying drawings, which are only exemplary embodiments for describing the present invention.

5 to 7, the pneumatic nail gun of the present invention includes a hollow body having a handle 1 connected to a compressor (not shown) hose, and a main passage 11 is formed in the handle 1 to form a body. Is connected to the inner space portion 10 of the. The barrel is connected to the front end of the body and the cap 2 is attached to the rear end of the body. The partition plate 100 is longitudinally positioned in the inner space 10 of the body to form the inner space 10 and the outer space 12 of the body. The piston 3 is movably received in the inner space 10 of the body, the launch plate 30 is connected to the piston 3 is inserted to be movable through the barrel. The recess 14 is formed in the wall of the handle 1 to form an opening 140 connected to the main passage 11. The trigger valve 7 is received in the recess 14 and the trigger 6 is connected to the trigger valve 7.

The trigger valve 7 includes a shaft 70 and a spring 74 is mounted at the end of the shaft 70 and is installed between the inside of the recess 14 and the end of the trigger valve 7. When the trigger 6 is pulled, two sealing rings 71 and 72 are mounted to the body of the trigger valve 7 so that the sealing ring 72 coupled to the end of the shaft 70 seals the opening 140. When the trigger 6 is released, the spring 74 pushes the trigger valve 7 to reopen the opening 140. The first passage 111 is formed in the wall of the handle 1, and the second passage 21 formed in the first passage 111, the tube 112, and the cap 2 is connected to each other to form the side passage B. A tube 112 is laterally connected between the handle 1 wall and the cap 2 to form.

As shown in FIG. 7, the propulsion means 4 is movably connected to the inside of the cap 2, and a spring 24 is installed between the propulsion means 4 and the cap 2, so that the partition plate 100 is provided. Propulsion means (4) to seal the inner space 10 through the fitting of the end of the inner surface with the inner surface of the inner space 10 of the body. The second passage 21 is connected to the space portion in which the propulsion means 4 is accommodated. In addition, the buoy passage B is closed by the pushing means 4 when the pushing means 4 is pushed toward the cap 2. The discharge passage 22 is formed in the cap 2 and is connected to the space portion in which the propulsion means 4 is accommodated.

The first vent 120 is formed in the divider plate 100 and is disposed close to the rear end of the body, and the second vent is formed in the divider plate 100 and disposed in the vicinity of the rear end of the body.

In the state where the trigger 6 is not pulled, the compressed air and the force of the spring 24 in the space where the propulsion means 4 is accommodated are transmitted from the main passage 11 to the propulsion means 4 in the opposite direction. Since greater than the force, the propulsion means 4 is in the position as shown in FIG. A vent 40 is formed in the protrusion of the propulsion means 4, and a spring 24 is received in the protrusion. The discharge passage 22 prevents the pressure flowing from the main passage 11 from being transferred to the inner space 10.

8 and 9, when pushing the barrel 6 and the safety device 5 on the body toward the object and pulling the trigger 6, the opening 140 is closed as described above so that the compressed air is a passage (B). You won't be able to enter. In this state, the compressed air in the main passage 11 applies a force greater than that of the spring 24 so that the pushing means 4 are pushed toward the cap 2. Compressed air flows into the inner space portion 10 to push the piston 3, and air on the left side of the piston in the inner space portion 10 passes through the second vent 121 to the outer space portion 12, and inside It is pushed to be discharged through another discharge passage 13 connected to the space 10. When the trigger 6 is released, the opening 140 is opened again and the propulsion means 4 is retracted to seal the inner space 10, and the air on the right side of the piston 3 in the inner space is the first. It is pushed to be discharged to the outer space (1) through the vent 120.

When the divider 100 forms part of the wall of the body, the piston may be as large as the inner diameter of the body. Accordingly, the present invention provides a pneumatic nail gun with a large piston, which does not increase the size of the body.

In the case of FIG. 11, there is no partition plate in the body, and the first vent hole 102 and the second vent hole 103 are formed by drilling the wall of the body, and the connecting tube 8 is formed of the first vent hole 102 and the first vent hole 102. 2 vent 103 is connected.

As described above, the embodiment according to the present invention has been described, but those skilled in the art can make various modifications other than the above embodiment without departing from the technical spirit of the present invention.

As described above, according to the present invention, since the nail gun body functions as a cylinder by itself, larger nails can be used without increasing the overall size as compared to the conventional nail gun.

Claims (6)

delete delete delete A handle, a main passage formed inside the handle, a barrel coupled to the front end of the body, a cap attached to the rear end of the body, a partition plate installed in the inner space of the body to form an inner space and an outer space within the body, A piston movably received in the inner space portion of the body, a launch plate connected to the piston and movably inserted through the barrel, a main passage connected to the inner space portion, formed on the handle wall and the main passage; A depression forming an opening to be connected, a trigger coupled to a trigger valve that is received in the recess and movably closes the opening when pulled, a first passage formed in the handle wall, a second passage formed in the cap and a handle A hollow body in which the tubes are connected to be connected between the wall and the cap, Propulsion means is movably coupled to the inside of the cap, A spring installed between the propulsion means and the cap so that the propulsion means is aligned with the end of the partition plate and the inner space portion of the body so as to move the airtight seal; A second passage connected to a space portion in which the propulsion means is received and closed by the propulsion means when the propulsion means is pushed toward the cap; A first vent formed in the divider and positioned proximate to the rear end of the body, A pneumatic nail gun, characterized in that it comprises a second vent formed in the divider plate and located close to the rear end of the body. The method of claim 4, wherein Cap is a pneumatic nail gun, characterized in that it has a discharge passage connected to the space portion in which the propulsion means is accommodated. The method of claim 4, wherein Pneumatic nail gun characterized in that the front end of the body has another discharge passage connected to the inner space.