Air gun

Abstract

An air gun with a barrel, provided with a bore, the bore being connected to the supply channel of the compressed medium. The supply channel is terminated with an annular distribution space arranged around the axis of the barrel, distribution channels connected to the barrel bore running from the annular distribution space towards the axis of the barrel.

Claims

1. An air gun with a barrel provided with a bore, the barrel comprising a horizontal barrel axis and the bore being connected to a supply channel of a compressed medium, wherein the supply channel is terminated with an annular distribution space arranged around the horizontal barrel axis, while distribution channels connected to the bore run in a star-like pattern from the annular distribution space towards the axis of the barrel, wherein the annular distribution space is located on an outer perimeter of: (i) the barrel, (ii) an insert that bears on a rear face of the barrel, said insert comprising a central opening that continues the barrel bore and that is coaxial with the horizontal barrel axis, or (iii) a sliding barrel lock, wherein the bore comprises a horizontal bore axis and the distribution channels are inclined with regard to the horizontal bore axis at an angle of =30 to 90 degrees, wherein the distribution channels are arranged in the insert and the distribution channels lead into the central opening.

2. The air gun according to claim 1, wherein the distribution channels comprise a combined cross-sectional distribution area and the barrel bore comprises a bore cross-sectional area, wherein the combined cross-sectional distribution area is equal to or greater than the bore cross-sectional area.

3. The air gun according to claim 1, wherein the annular distribution space is arranged on the outer perimeter of the insert.

4. The air gun according to claim 1, wherein the annular distribution space is arranged between two sealing O-rings.

5. The air gun according to claim 1, wherein the annular distribution space is arranged between a sealing O-ring and a peripheral thread.

6. The air gun according to claim 1, wherein the annular distribution space is arranged between two sealing O-rings.

7. The air gun according to claim 1, wherein the annular distribution space is arranged between a sealing O-ring and a peripheral thread.

8. An air gun with a barrel provided with a bore, the barrel comprising a horizontal barrel axis and the bore being connected to a supply channel of a compressed medium, wherein the supply channel is terminated with an annular distribution space arranged around the horizontal barrel axis, while distribution channels connected to the bore run in a star-like pattern from the annular distribution space towards the axis of the barrel, wherein the annular distribution space is located on an outer perimeter of: (i) the barrel, (ii) an insert that bears on a rear face of the barrel, said insert comprising a central opening that continues the barrel bore and that is coaxial with the horizontal barrel axis, or (iii) a sliding barrel lock, wherein the bore comprises a horizontal bore axis and the distribution channels are inclined with regard to the horizontal bore axis at an angle of =30 to 90 degrees, wherein the distribution channels are arranged in the sliding barrel lock, wherein the sliding barrel lock comprises a front face that bears on the rear face of the barrel, the barrel lock being provided with a central opening that continues the barrel bore, and wherein the distribution channels lead into the central opening.

9. The air gun according to claim 8, wherein the distribution channels comprise a combined cross-sectional distribution area and the barrel bore comprises a bore cross-sectional area, wherein the combined cross-sectional distribution area is equal to or greater than the bore cross-sectional area.

10. The air gun according to claim 8, wherein the annular distribution space is positioned on the outer perimeter of the barrel lock.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 shows a first embodiment of an air gun according to the invention, with channels created directly in the rear end of the barrel;

(2) FIG. 2 shows a second embodiment of an air gun according to the invention, with channels created in a separate insert, which is shown in detail in FIGS. 3 and 4;

(3) FIG. 5 shows a third embodiment of an air gun according to the invention, with channels created in the barrel lock;

(4) FIG. 6 shows sealing of the distribution space with an O-ring and a peripheral thread; and

(5) FIG. 7 shows sealing of the distribution space with two O-rings.

DESCRIPTION OF EMBODIMENTS OF THE INVENTION

(6) The embodiment of an air gun according to FIG. 1 has a barrel 1 with a bore 2. The barrel 1 is fixed in the body 12 of the gun with grub screws 15.

(7) The compressed medium (air, gas) is supplied from a source, which is not shown here, via the supply channel 3 to the annular distribution space 4 arranged around the axis of the barrel 1 on the outer perimeter of the barrel 1.

(8) The distribution space 4 is sealed with two O-rings 8. Distribution channels 5 run from the annular distribution space 4 in a star-like pattern towards the axis of the barrel 1, the channels being inclined with regard to the axis of the barrel bore 2 at the angle =75 degrees and leading to the bore 2 of the barrel 1. In accordance with the present invention, the distribution channels can be inclined with regard to the axis of the barrel bore at the angle =30 to 90 degrees.

(9) At the rear end of the barrel 1, a rotary magazine 13 is arranged from which projectiles 11 can be moved into the bore 2 of the barrel 1 by means of a loading pin 14 mounted in a sliding manner.

(10) To supply a sufficient quantity of air to the barrel bore 2, the sum of the areas of the cross-sections of all the distribution channels 5 can be equal to or bigger than the area of the cross-section of the barrel bore 2.

(11) Before shooting, a mechanism, which is not shown here, is used to move the loading pin 14 in such a way that its tip can push the projectile 11 from the rotary magazine 13 into the barrel bore 2.

(12) After pressing of a not shown trigger, the compressed medium is supplied via the supply channel 3 to the annular distribution space 4 and further via the distribution channels 5 into the barrel bore 2 so that the compressed medium ejects the prepared projectile 11 from the barrel bore 2.

(13) FIG. 2 shows a second embodiment of an air gun according to the invention, which differs from the embodiment of FIG. 1 in that the annular distribution space 4 and the star-like arranged distribution channels 5 are not created directly in the rear end of the barrel 1, but in a separate insert 6 that bears on the rear face of the barrel 1. The insert 6 is provided with a central opening 7 that continues the barrel bore 2, and the distribution channels 5 lead into this central opening 7. The annular distribution space 4 is arranged on the perimeter of the insert 6, in the place of the distribution channels 5. A detail of such an insert 6 is shown in FIGS. 3 and 4.

(14) In the embodiment of FIG. 2, the annular distribution space 4 is sealed with a sealing O-ring 8 at one side and with a peripheral thread 10 at the other side. A detail of such a sealing is shown in FIG. 6. Naturally, the distribution space 4 can also be sealed with two O-rings 8 as shown in FIG. 7.

(15) The function of the gun of FIG. 2 is analogous to that of the described embodiment of FIG. 1.

(16) FIG. 5 shows a third embodiment of an air gun according to the invention, which differs from the embodiment of FIG. 1 in that the annular distribution space 4 and the star-like arranged distribution channels 5 are created in a sliding barrel lock 9 that in its front position bears on the rear face of the barrel 1. In the barrel lock 9, a central opening 7 is created that continues the barrel bore 2, and the distribution channels 5 lead into the central opening 7.

(17) The barrel lock 9 is on the perimeter, in the place of the distribution channels 5, provided with an annular distribution space 4 that is sealed with a pair of O-rings 8 in the front position of the lock 9.

(18) This function of the gun of FIG. 5 is analogous to that of the embodiment of FIG. 1. Only the loading is manual, i.e. the barrel lock 9 is moved backwards, the user inserts a projectile 11 into the barrel bore 2 with his/her fingers, and the barrel lock 9 is moved forwards.

LIST OF REFERENCE SIGNS

(19) 1 barrel 2 bore 3 supply channel 4 distribution space 5 distribution channels 6 insert 7 central opening 8 O-ring 9 barrel lock 10 peripheral thread 11 projectile 12 gun body 13 magazine 14 loading pin 15 grub screw