ACTION BAR BUSHING FOR BULLPUP RIFLES

Abstract

The present invention relates to an action bar (4) bushing apparatus that allows the action bar (4) to be fixed to the barrel (17), that changes as a retainer pin apparatus and/or lever apparatus depending on the use preference, and that has been developed to facilitate the removal of the action bar (4) in order to clean the rifle bolt (2) and parts thereof.

Claims

1. Action bar bushing used for fixing the action bar to the barrel in bullpup rifles, characterized by comprising; a. action bar slot that has at least two partitions in which the action bar fits therein and at least one partition wall between said partitions; b. lever bearing formed in said partition wall; c. at least one lever that is in said lever bearing and can rotate around its own axis; d. at least one lever socket that prevents said action bar from coming out of said action bar's slot by staying on said action bar and that fits therein when the bar outside said lever bearing comes to a position parallel to the barrel with rotating said lever around its own axis.

2. Action bar bushing used for fixing the action bar to the barrel in bullpup rifles, characterized by comprising; a. action bar slot that has at least two partitions in which the action bar fits therein and at least one partition wall between said partitions; b. bushing wall comprising at least one pin slot formed at the end of said action bar slot; c. at least one pin that prevents said action bar coming out from said action bar slot by running through said pin slot; d. at least one plate on which said pins are located; e. at least one retainer pin fixed to said bushing wall and running through said plate; f. at least one spring that pushes said plate to said bushing when released, that remains between said plate and the non-fixed end of said retainer pin to said bushing.

3. Action bar bushing according to claim 1, characterized by comprising at least one fixing screw (15) that ensures locking said lever (12) by tightening after it is positioned on said lever bearing (13).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0010] The figures of the action bar bushing apparatus for bullpup rifles are as follows;

[0011] FIG. 1 illustrates the Retainer Pin ApparatusBolt View.

[0012] FIG. 2 illustrates the Lever ApparatusBolt View.

[0013] FIG. 3 illustrates the Locked View of Retainer Pin Apparatus.

[0014] FIG. 4 illustrates the Unlocked View of Retainer Pin Apparatus.

[0015] FIG. 5 illustrates the view of Removed Action Bar of Retainer Pin Apparatus.

[0016] FIG. 6 illustrates the Locked view of Lever Apparatus.

[0017] FIG. 7 illustrates the Unlocked view of Lever Apparatus.

[0018] FIG. 8 illustrates the view of Removed Action Bar of Lever Apparatus.

[0019] FIG. 9 illustrates the Retainer Pin ApparatusExploded View of Bolt

[0020] FIG. 10 illustrates the Lever ApparatusExploded View of Bolt

REFERENCE NUMERALS

[0021] 1. Recolt Spring [0022] 2. Bolt [0023] 3. Cocking Handle [0024] 4. Action Bar [0025] 5. Retainer pin [0026] 6. Retainer Pin Spring [0027] 7. Retainer Pin Slot [0028] 8. Plate [0029] 9. Pin [0030] 10. Pin Slot [0031] 11. Gas Chamber [0032] 12. Lever [0033] 13. Lever Bearing [0034] 14. Lever Socket [0035] 15. Screw [0036] 16. Screw Socket [0037] 17. Barrel [0038] 18. Cocking Handle Ball [0039] 19. Cocking Handle Ball Spring [0040] 20. Cocking Handle Retainer Pin [0041] 21. Piston Retaining Plug [0042] 22. Piston [0043] 23. Piston Fixing Ring [0044] 24. Piston O-Ring [0045] 25. Piston Nut [0046] 26. Action Bar Bushing [0047] 27. Contra Nut [0048] 28. Partition Wall [0049] 29. Action Bar Slot [0050] 30. Bushing Wall

[0051] The present invention is the action bar (4) bushing apparatus in bullpup rifles, and it is used together with the retainer pin (5) apparatus and/or lever (12) apparatus, depending on the usage preference of the present invention.

[0052] The present invention is positioned under the action bar bushing (26) as seen in FIG. 2 and FIG. 6 of the lever apparatus and consists of the regions of lever bearing (13), lever socket (14) and lever fixing screw (15).

[0053] The present invention is the retainer pin (5) apparatus, and it was positioned under the action bar bushing (26) as seen in FIG. 1 and FIG. 3, and consists of retainer pin spring (6), retainer pin connection plate (8), retainer pin slot (7), pins on plate (9), pin slot (10).

[0054] The parts positioned on the barrel in bullpup rifles are piston nut (25), piston fixing ring (23), piston O-ring (24), piston (22), piston retaining plug (21), gas chamber (11). When the mechanism is cleaned as in the ones in the prior art, first of all, the action bar (4), which is fixed to the barrel, must be opened by removing the action bar bushing (26) and then the barrel (17) must be removed, and all these parts must be separated one by one. This situation is also disadvantageous.

[0055] The retainer pin and/or lever apparatus of the present invention, which is positioned under the action bar bushing (26) and provides ease of use, has been developed as a solution to these problems in prior art.

[0056] Firing in bullpup rifles occurs as a result of bolt (2) contacts the explosion point of the ammunition after the trigger is pressed, with moving back with great pressure and coming out of the ammunition by throwing it. The mechanism (2) moves backwards rapidly with the pressure formed during firing and said bolt (2) is prevented from being damaged by hitting the back by means of the compression of the recolt spring (1), which is positioned along the way behind the rifle bolt (2). While the bolt (2) moves backwards, the empty cartridge remaining in the system after firing is also thrown out of the system in the meantime. When the bolt (2) returns, new ammunition has taken its place and the system is re-established. Each time this event occurs, a residue is formed in the bolt (2) and in the rifle parts. Cleaning this residue regularly after each use is important for the long-lasting use of the rifle and the use of parts thereof. In FIG. 9 and FIG. 10, it is seen that the connection regions of the retainer pin (5) and lever (12) parts, which are shown as exploded together with the bolt. These apparatus, which were developed together with the action bar bushing (26), and which facilitate part cleaning by removing the action bar (4) fixed to the barrel (17) with the action bar bushing (26), provide ease of use to the user.

[0057] Fixing the action bar (4) to the barrel (17) consists of two stages. The first stage is that the action bar (4) is fitted on the action bar bushing (26) located on the barrel (17), and thereby preventing the moving back and forth of the action bar (4) on the barrel (17). At this stage, the action bar (4) is fitted on the action bar slot (27), which is formed from at least two partitions and where the end of the barrel (17) side is formed on the action bar bushing (26). As long as the action bar (4), which is fitted on the action bar slot, is not removed from this slot, its back and forth movement is prevented by the partition wall (28) inside the slot.

[0058] (FIGS. 2-6-7-8-10) Second stage of the fixing is that preventing the action bar (4) from coming out of the action bar slot (29), where it is fitted on. In the present invention, it is aimed for the user to be able to perform this operation without using any tool and to be able to untangle the fixed action bar (4) when necessary.

[0059] For this purpose, a lever socket (14) was formed on the partition wall (28) located on the action bar bushing (26), and the lever (12) was placed inside. By rotating the lever (12) around its own axis in the lever socket (14), in case where the arm of the lever (12) is positioned perpendicular to the barrel (17), the action bar (4) can be fitted on the action bar slot (29), which is located on the action bar bushing (26). When the lever (12) is turned parallel to the barrel (17), The tip of the lever (12) fit on the lever bearing (13) and prevents the action bar (4) to coming out of its slot. In order to prevent the lever (12) from coming out of the lever bearing (13) without manual intervention, an additional tooth is formed in the lever bearing.

[0060] (FIGS. 2-6-7-8-10) Again, in order to prevent the lever (12) from coming out of the lever bearing (13), it can be fixed with a screw (15) into the screw socket (16) extending towards the lever bearing (13). (FIGS. 1-3-4-5-9) In the alternative solution developed to prevent the action bar (4) from coming out of the action bar slot (29), which is located on the action bar bushing (26), a spring (6) plate (8) with pins (9) thereon was used. At the end of the action bar slot (29), the bushing wall (30) and at least one pin slot (10) are formed thereon. When the action bar (4) is fitted on the action bar slot (29), the pins to be inserted through the pin slot (10) towards the action bar (4) will stay on the action bar (4) and prevent it from coming out of the slot (29) where it is fitted on. In order to prevent the pins (9) from coming out without any manual intervention when the action bar (4) is fitted in the slot (29), the pins (9) are driven into a plate (8) parallel to each other. The pins (9) are positioned to enter the pin slots (10) apart from the lever (8) of the action bar bushing (26). There is one retainer pin (5) on the side of the plate (8) where the pins (9) are not, and there is also a spring (6) between the retainer pin (5) and the plate (8). Said retainer pin (5) is fixed to the action bar bushing (26) by running through the plate (8). Thus, with the force of the spring (6) on the fixed pin (5), the plate (8) is constantly pushed towards the action bushing (26), the pins (9) located on the plate (8) run through the slots formed on the action bar bushing (26) and prevent the action bar (4) from coming out of the slot where it fits in. When it needs to be disassembled, the spring (6) force is renewed manually without the need of any tool, the plate (8) being pulled back from the action bar bushing (26), the pins (9) moving backwards within the pin slots (10) are pulled over the action bar (4) and allow the action bar (4) to be removed from the slot.