PRESSURE CONTROL MECHANISM FOR FIREGUNS

Abstract

The present invention relates to a pressure control structure that is developed to be used in semi-automatic firearms operating with gas pressure, that allows for using any type of live ammunition (small/magnum) easily by maintaining the stability of the gas pressure created as a result of firing the firearm and enables cocking the rifle mechanism, that protects the parts of the rifle as well as the assembly thereof and that provides the user a more comfortable firing experience.

Claims

1. A pressure control structure for firearms, comprising: at least one gas discharge port that enables adjusting the gas pressure by being opened and closed; and a gas chamber where on its wall the gas discharge port is positioned, such that the gas chamber does not come into contact with a gas piston.

2. The pressure control structure for firearms of claim 1, wherein the gas chamber has at least one gas chamber lug that incorporates a hole running along the length of the gas chamber and a bolt handle seat located inside of the gas chamber lug.

3. A pressure control structure for firearms, comprising at least one bolt handle, wherein one end of the bolt handle is positioned in a gas chamber and extends to at least one gas discharge port.

4. The pressure control structure for firearms of claim 3, wherein another end of the bolt handle extends to a firearm chassis.

5. The pressure control structure for firearms of claim 3, wherein one end of the bolt handle that extends to the gas discharge port moves inside of a gas chamber lug.

6. The pressure control structure for firearms of claim 3, wherein the bolt handle further comprises at least one bolt handlebar that is positioned on one end of the bolt handle such that the bolt handlebar further allows fixing of the position of the bolt handle.

7. The pressure control structure for firearms of claim 6, wherein the bolt handle has at least one bolt handlebar positioning hole that allows positioning of the bolt handlebar to the bolt handle.

8. The pressure control structure for firearms of claim 6, wherein the bolt handle has at least one ball setscrew hole formed on the bolt handle and adjacent to the bolt handlebar positioning hole.

9. The pressure control structure for firearms of claim 8, wherein the bolt handle has at least one ball setscrew that is inserted into the ball setscrew hole.

10. The pressure control structure for firearms of claim 3, wherein the bolt handle has a stepped shaft structure such that the stepped shaft structure has a wider structure than the rest of the bolt handle structure.

11. The pressure control structure for firearms of claim 6, wherein a firearm chassis has at least two bolt handle positioning holes into which the bolt handlebar can be seated, in order to fix the position of one end of the bolt handle located inside a bolt handle seat and also to fix the position of the other end of the bolt handle located in the firearm chassis.

12. The pressure control structure for firearms of claim 4, wherein the firearm chassis has a bolt handle seat.

13. The pressure control structure for firearms of claim 4, wherein the firearm chassis has at least one bolt handle spring that is connected to the bolt handle by being positioned in the firearm chassis.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0023] To be able to understand the novelties brought forth for the purpose of achieving the aforementioned objects, the inventive gas pressure control structure needs to be evaluated in consideration of the figures disclosed below, wherein;

[0024] FIG. 1 illustrates the drawing in which the gas discharge port (exhaust) is shut by the bolt handle in the system installed to a firearm suitable for firing ammunition for small arms.

[0025] FIG. 2 illustrates the drawing in which the gas discharge port (exhaust) is open in the system installed to a firearm suitable for firing ammunition for heavy arms (magnum).

[0026] FIG. 3 illustrates the front perspective view of the gas chamber which is the first element of the inventive structure.

[0027] FIG. 4 illustrates the rear perspective view of the gas chamber which is the first element of the inventive structure.

[0028] FIG. 5 illustrates the sectional view of the gas chamber which is the first element of the inventive structure.

[0029] FIG. 6 illustrates the assembled view of the bolt handle and the elements constituting it.

[0030] FIG. 7 illustrates the disassembled view of the bolt handle and the elements constituting it.

[0031] The components of the inventive pressure control system are enumerated with reference numerals in the annexed figures in order to ensure a better understanding of the inventive pressure control system, wherein;

[0032] 1-Barrel

[0033] 2-Gas Chamber

[0034] 3-Gas Piston

[0035] 4-Bolt Handle

[0036] 5-Bolt Handlebar

[0037] 6-Ball Setscrew

[0038] 7-Bolt Handle Spring

[0039] 8-Firearm Chassis

[0040] 9-Bolt Handle Positioning Hole

[0041] 10-Barrel Gas Port

[0042] 11-Bolt Handle Seat

[0043] 12-Gas Discharge Port

[0044] 13-Gas Piston Seat

[0045] 14-Gas Chamber Lug

[0046] 15-Bolt Handlebar Positioning Hole

[0047] 16-Ball Setscrew Hole

[0048] 17-Bolt Handle Seat

[0049] Gas chamber (2) is formed as the first element of the inventive pressure control structure. The most important characteristic of the gas chamber (2) is that it comprises a gas discharge port (12) thereon. Adjustment of the gas pressure inside the gas chamber (2) is performed opening and closing the gas discharge port (12). The position of the gas discharge port (12) on the gas chamber (2) is located on a surface to which the gas piston (3) does not come into contact with. Said gas chamber (2) is of a cylindrical structure wherein it comprises a gas piston seat (13) that allows for positioning the gas piston (3) therein.

[0050] As it is illustrated in FIG. 4, the gas chamber has a gas chamber lug (14) of rectangular shape located on the upper portion thereof.

[0051] As illustrated in FIG. 3, a hole is made in an end-to-end relation within the inner portion of the gas chamber lug (14), and a bolt handle seat (11) is created therein to which the bolt handle (4) is connected.

[0052] As illustrated in FIG. 5, a gas discharge port (12) is created on the gas chamber lug (14) in a manner in which the bolt handle seat (11) is perpendicular to the lug and that it opens onto the gas piston seat (13).

[0053] Another important element of the inventive pressure control structure is the bolt handle (4). As illustrated in FIG. 6, the bolt handle (4) is structured to have a stepped shaft shape, wherein an end thereof is fine, and the other end is thick. The thick end of the bolt handle comprises the bolt handlebar positioning hole (15) to which the bolt handlebar (5) is connected and a ball setscrew hole (16) to which the ball setscrew (6) is mounted.

[0054] The bolt handle spring (7) is inserted into the bolt handle seat (17) that is initially created on the firearm chassis (8) while the elements disassembled views of which are illustrated in FIG. 7 are being installed. The thicker portion of the bolt handle (4) is aligned and pushed forward such that it engages the bolt handle seat (17) created on the firearm chassis (8). The bolt handlebar (5) is attached to the bolt handlebar positioning hole (15) on the bolt handle (4), to ensure that said bolt handle (4) is positioned such that it may freely move on the firearm chassis (8). A ball setscrew (6) attached to the bolt handle (4) is entrusted with preventing the bolt handlebar (5) from getting involuntarily removed from its respective place. The bolt handle spring (7) inserted into the bolt handle seat (17) absorbs the space of the bolt handle (4), thereby providing said bolt handle (4) better positioning. Said bolt handle (4) is positioned on the firearm chassis (8) such that the user may readily reach it. Thus, the user may intervene in the system without disrupting the line of firing position.

[0055] Thin end of the bolt handle (4) is positioned into the bolt handle seat (11) located on the gas chamber (2). Thus, the bolt handle (4) is positioned such that an end thereof operates inside the firearm chassis (8) and the other end operates within the gas chamber (2). Gas discharge port (12) is opened and closed by means of the movements of the bolt handle (4), thereby performing the operation of the system. When the bolt handle (4) is pushed in the direction of the barrel (1), the gas discharge port (12) moves into the closed position. The bolt handlebar (5) positioned on the bolt handle (4) is seated to the bolt handle positioning hole (9) that is closer to the barrel (1). Thus, the bolt handle (4) may be fixed in the position in which it closes the gas discharge port (12). As illustrated in FIG. 1, the entire volume of gas coming from the barrel to the gas chamber (2) may reach the gas piston (3). Thus, the entire volume of gas generated returns to the firearm chassis (8) by passing through the barrel gas port (10), thereby assisting in re-cocking of the firearm. Thus, ammunition types suitable for small arms may be ejected from the system in a problem-free manner.

[0056] When the bolt handle (4) is pulled back, i.e. towards the firearm chassis (8), gas discharge port (12) opens. The bolt handlebar (5) positioned on the bolt handle (4) is seated to a second bolt handle positioning hole (9) created at a rear end thereof. Thus, it ensures that the gas discharge port (12) stays in the open position. Thus, as illustrated in FIG. 2, the firearm is switched to the position in which it is capable of firing the type of ammunition suitable for heavy arms (magnum). Some portion of the high-pressure gas arriving at the gas chamber (2) is discharged through the gas discharge port (12). The rest of the gas generated returns to the firearm chassis (8) by passing through the barrel gas port (10), thereby assisting in re-cocking of the firearm. Thus, the firearm is operated such that it utilizes ammunition type suitable for small arms, hence the mechanism, as well as the assembly of the firearm and the user, are prevented from sustaining any damage.