A NEW MECHANISM STRUCTURE FOR FIREARMS

Abstract

The present invention relates to a new rifle mechanism that can be used in both rifles and shotguns, has a higher firing power because of components which it comprises and allows rifle structure to be used more efficiently.

Claims

1. A mechanism for firearms, characterized by comprising a mechanism head positioned exactly at the back of a barrel structure and enabling the mechanism structure to fire, which comprises a firing pin housing on the back surface of facing to opposite side according to the end of the barrel and in a space form in which a firing pin can be positioned, a tether pin housing positioned oppositely on the firing pin housing on both side surfaces and in a space form in which the tether pin for the firing pin can be positioned, a two extractor housing positioned oppositely on side surfaces of end portions facing towards the barrel and in a space form in which an extractor can be positioned, a lock protrusion comprising a protruding structure resembling to a triangle form on the upper surface of end portion facing towards the barrel and fitting exactly in a lock housing on the lower surface of a mechanism rail; a firing pin comprising a tether bearing which is positioned in the firing pin housing on the back surface of a mechanism head such that a pin spring is on the end portion facing forwards, of which thin end facing forwards may stick slightly out of a firing pin cavity on the front surface of the mechanism head, and which is in a half-space form enabling the cartridge ready to be shot in mechanism to fire and in which the tether pin for firing pin can be positioned; an extractor which can be positioned in any one of the extractor housing positioned oppositely on side surfaces of the end of mechanism head facing forwards, which comprises a cartridge holding protrusion in a some protruding form for the purpose of holding the cartridge base on the end portion facing towards the barrel, which comprises a cartridge base space in a some space form positioned so as to grip properly the base of the cartridge structure immediately behind the cartridge holding protrusion, and of which main objective is to eject the empty cartridge case out of barrel; a barrel crown enabling the barrel structure positioned on the space thereunder and push tube-recoil spring tube structures positioned on the space thereon that moves based on the gas to move synchronously, and positioned immediately in front of the magazine disc such that it exists at immediate back of the barrel structure; a push tube which is positioned on the upper portion of the barrel structure such that its back end is in barrel crown, which comprises a cocking handle protrusion in a protruding form that stops cocking handle segment at the end portion facing to the barrel end, which comprises a cocking handle housing in a uniform space form in which the cocking handle can be positioned on side surfaces of the cocking handle protrusion, and which enables the mechanism head to slide backwards by transmitting the movement obtained from a gas piston in a gas chamber to recoil the spring tube; a tube lid of which one end can enter in front end of the push tube structure, which is mounted to the push tube by means of the push tube pin positioned in pin cavities on the end entering in the push tube, and which transmits the movement obtained from the gas piston in the gas chamber to the push tube; a gas chamber which is positioned on the barrel structure such that it is exactly in front of the tube lid, in which powder gas resulted from firing is filled, which comprises a gas piston that enables to initiate the movements that mechanism carries out as a result of movements by the effect of gas filled therein, which comprises a gas hole through which it sucks powder gas at any point in the section of the interior surface taking place on the barrel, and which comprises discharge holes such that there will be at least one on the exterior surface for the purpose of discharging excessive powder gas and powder residues/particles therein.

2. Mechanism structure according to claim 1, characterized by comprising: a recoil spring tube which is positioned exactly on the mechanism head such that it is between upper edges of a mechanism right cover and a mechanism left cover, which comprises wide tube protrusions positioned symmetrically on the two side surfaces, which comprises four small tube protrusion in total positioned on both edges of wide tube protrusions two side surfaces, which comprises a rod housing in which the guide rod and recoil spring can be positioned at the back end; a mechanism left cover which is positioned on a side of mechanism head such that it is opposite to the mechanism right cover, which is mounted to the mechanism right cover by means of a cover mounting pin positioned in a cover pin housing in the lower section, which comprises two movement holes in a space form such that it constitutes a 35 degree angle according to ground plain in the lower section, which comprises a wide tube housing in a half space form that can be located on the wide tube protrusions on the upper edge, which comprises two small tube housings in a space form positioned on both sides of the wide tube housing on the upper edge section, and which helps the mechanism head with carrying out movements; a mechanism right cover which is positioned on a side of the mechanism head such that it is oppositely with the mechanism left cover, which is mounted to the mechanism left cover by means of the cover mounting pin positioned in a cover pin housing in the lower section, which comprises two movement holes in a space form such that it constitutes a 35 degree angle according to ground plain in the lower section, which comprises a wide tube housing in a half space form that can be located on the wide tube protrusions on the upper edge, which comprises two small tube housings in a space form positioned on both sides of the wide tube housing on the upper edge section, and which helps the mechanism head with carrying out movements; a guide rod which is positioned in rod housing along with the recoil spring positioned thereon, which comprises a spring stopper in a protruding form in the section close to the back end so as to prevent the recoil spring from falling, and which enables to take the location in normal position back by pushing the mechanism that slides backwards from the firearm's back side towards the front side so as to cock the firearm; a pin segment which is positioned in the segment housing at the lower position of the mechanism head, of which two ends are in a spring form, of which said ends exist exactly under the cover mounting pins, and which prevents the cover mounting pins to move in a perpendicular direction according to ground plain.

3. Mechanism structure according to claim 1, characterized by comprising: a push rail which is positioned exactly on the push tube on which the push spring is positioned, which is comprised of two thin uniform tube structures that are parallel to each other, which is positioned such that it goes through the push rail spaces on the upper section of the tube lid, of which each two ends enters separately in two push rail housings on the barrel crown, and which appoints the movement axis of the push tube by enabling the push tube to move in a parallel direction to the barrel axis; a mechanism rail which is positioned exactly on the mechanism head and exactly under the recoil spring tube, which comprises a lock housing in a space form corresponding to the lock protrusion on the mechanism head on its lower surface, and which locks the mechanism head for the purpose of pushing the bullet fired from the cartridge by the effect of explosion pressure in the course of firing; a magazine disc which is in a structure in which its upper portion can be mounted with the mechanism rail to each other, which is positioned in the back end of the barrel structure, and which enables both the barrel and the mechanism rail to be fastened according to each other by means of mounting it to them.

4. Mechanism head according to claim 1, characterized by comprising; a segment housing in which the pin segment is positioned and which is in a space form expanding inwards on the lower surface of the mechanism head, two head pin housing which are positioned on its side surfaces such that it is close to low edge of the body of the mechanism head and which are in a space form in which the mechanism mounting pins are positioned, an extractor spring cavity which constitutes the back end of the extractor housing being at the back end of extractor housing and which is a space form in which the extractor spring that moves the extractor structure is positioned, two extractor cavities which is positioned symmetrically on both sides of the lock protrusion on the upper surface of the mechanism head and what are in a cylindrical space form that enables the extractor structure to be positioned in the extractor housing in the mechanism head by means of the extractor pin positioned therein.

5. Tube lid according to claim 1, characterized by comprising: two push rail spaces which are positioned symmetrically on both sides of the upper section of tube lid according to each other and which are in a space form in which the push rail structure is positioned from both sides, a pin cavity which is positioned on two opposed edges on the end of the tube lid entering in the push tube, which is in a space form in which the push tube pin enabling the tube lid to be mounted to the push tube can enter and which is in a uniform space form that helps the tube lid and the push tube to be mounted to each other by means of taking place exactly on the push tube holes on the end of the push tube being mounted to the tube lid.

6. (canceled)

7. Extractor according to claim 1, characterized by comprising: an extractor pin housing which is in a space form in which the extractor pin can enter, which exists in the middle of the extractor structure and which helps the extractor structure to be fastened in the extractor housing by means of entrance therein of the extractor pin pushed inwards through the extractor cavity on the mechanism head, a spring protrusion which constitutes the end facing backwards of the extractor structure, which is in a backward protruding form and which allow the extractor structure fastened in the extractor housing to move around the extractor pin by means of the extractor pin thanks to the extractor spring positioned on its interior surface.

Description

DESCRIPTION OF THE FIGURES

[0010] FIG. 1. Unmounted mechanism group—Perspective view

[0011] FIG. 2. Mounted mechanism group—Front perspective view

[0012] FIG. 3. Mounted mechanism group—Back perspective view

[0013] FIG. 4. Guide rod—Perspective view

[0014] FIG. 5. Recoil spring tube—Front-Top perspective view

[0015] FIG. 6. Recoil spring tube—Back-Top perspective view

[0016] FIG. 7. Firing pin—Perspective view

[0017] FIG. 8. Mechanism left cover and mechanism right cover that are positioned opposing—Perspective view

[0018] FIG. 9. Extractor—Perspective view

[0019] FIG. 10. Extractor—Top view

[0020] FIG. 11. Mechanism head—Front-Top perspective view

[0021] FIG. 12. Mechanism head—Side view

[0022] FIG. 13. Mechanism head—Back-Bottom perspective view

[0023] FIG. 14. Mechanism head in which firing pin, pin segment and extractor are positioned—Back-Bottom perspective view

[0024] FIG. 15. View of positions of firing pin, pin segment and extractor subsequent to montage without mechanism head.

[0025] FIG. 16. Unmounted barrel group—Perspective view

[0026] FIG. 17. Mounted barrel group—Front perspective view

[0027] FIG. 18. Mounted barrel group—Back perspective view

[0028] FIG. 19. Mechanism rail—Bottom perspective view

[0029] FIG. 20. Barrel crown—Perspective view

[0030] FIG. 21. Push tube—Perspective view

[0031] FIG. 22. Tube lid—Front perspective view

[0032] FIG. 23. Tube lid—Back perspective view

[0033] FIG. 24. Gas chamber—Front perspective view

[0034] FIG. 25. Gas chamber—Back perspective view

[0035] FIG. 26. Mechanism group mounted to each other and barrel group—Front perspective view

[0036] FIG. 27. Mechanism group mounted to each other and barrel group—Back perspective view

[0037] FIG. 28. Close view of mechanism head portion in the mechanism group mounted to each other and barrel group

[0038] The parts shown in the figures are enumerated individually and names of the parts corresponding to these numbers are given below; [0039] 1. Guide Rod [0040] 2. Recoil Spring [0041] 3. Spring Plate [0042] 4. Recoil Spring Tube [0043] 5. Firing Pin [0044] 6. Mechanism Left Cover [0045] 7. Pin Segment [0046] 8. Mechanism Right Cover [0047] 9. Extractor [0048] 10. Extractor Spring [0049] 11. Tether Pin for Firing Pin [0050] 12. Extractor Pin [0051] 13. Firing Pin Spring [0052] 14. Mechanism Head [0053] 15. Mechanism Mounting Pin [0054] 16. Cover Mounting Pin [0055] 17. Movement Hole [0056] 18. Tether Bearing [0057] 19. Cover Pin Housing [0058] 20. Small Tube Housings [0059] 21. Wide Tube Housings [0060] 22. Extractor cavities [0061] 23. Lock Protrusion [0062] 24. Segment Housing [0063] 25. Cocking Handle Protrusion [0064] 26. Cocking Handle Housing [0065] 27. Firing Pin Cavity [0066] 28. Push Rail Housing [0067] 29. Pin Cavity [0068] 30. Firing Pin Housing [0069] 31. Push Tube Holes [0070] 32. Extractor Spring Cavity [0071] 33. Extractor Housing [0072] 34. Head Pin Housing [0073] 35. Tether Pin Housing [0074] 36. Push Rail Spaces [0075] 37. Small Tube Protrusions [0076] 38. Wide Tube Protrusions [0077] 39. Rod Housing [0078] 40. Gas Hole [0079] 41. Gas Chamber [0080] 42. Gas Piston [0081] 43. Gas Chamber Lid [0082] 44. Discharge Holes [0083] 45. Cartridge Holding Protrusion [0084] 46. Spring Stopper [0085] 47. Cartridge Base Space [0086] 48. Spring Protrusion [0087] 49. Extractor Pin Housing [0088] 50. Mechanism Rail [0089] 51. Lock Housing [0090] 52. Magazine Disc [0091] 53. Barrel Crown [0092] 54. Push Spring [0093] 55. Cocking Handle Segment [0094] 56. Push Rail [0095] 57. Push Tube [0096] 58. Cocking Handle [0097] 59. Push Tube Pin [0098] 60. Tube Lid [0099] 61. Barrel [0100] 62. Lid Pin

DESCRIPTION OF THE INVENTION

[0101] The invention relates to a new mechanism structure designed for both rifles and shotguns, comprising a lock system that works in a perpendicular position, with a lower recoil level and having an increased firing power by means of a small amount of gas leak.

[0102] Mechanism structure, the subject matter of the invention, comprises a mechanism blog carrying out the firing process. Exploded view of said mechanism group can be seen in FIG. 1. Further, said mechanism structure comprises a particular barrel group so as to properly carry out the firing process. Exploded view of said barrel group can be seen FIG. 16. Trigger mechanism, cock structure, magazine structure, etc. other members that needs to exist in firearm structures, in which mechanism structure subject to the invention exists, may be standard structures.

[0103] Mechanism group existing in the central position of mechanism structure subject to the invention is positioned such that it exactly coincides with the back portion of the barrel (61) structure. Mechanism group, as also can be seen in FIG. 3, is comprised of a mechanism head (14) in the center, and mechanism right cover (8) and mechanism left cover (6) that are positioned at the two opposing sides of the mechanism head (14) and are in a symmetrical form according to each other. Mechanism right cover (8) and mechanism left cover (6) helps mechanism head (14) with the movements to be carried out. Mechanism right cover (8) and mechanism left cover (6) are positioned such that they are opposing to sides of mechanism head (14). Positioned covers are mounted to each other by means of each cover pin housing (19) that exists at lower portions and faces each other. One cover mounting pin (16) mounts said cover structures to each other by means of inserting each end into a cover pin housing (19). As can be seen in FIG. 12, there is an oval space formed at lower surface of mechanism head (14) so that mechanism head (14) does not prevent cover mounting pin (16) from getting mounted. Cover mounting pin (16) can be connected to both cover structures without making a contact with the mechanism head (14) by means of said space.

[0104] Connection of the mechanism head (14) with the mechanism right cover (8) and mechanism left cover (6) is realized by means of two mechanism mounting pins (15). Said mechanism mounting pins (15), as can be seen in FIG. 12, are positioned into two head pin housings (34) located on the side surfaces such that they are close to lower edge of the body of mechanism head (14). End portions of mechanism mounting pins (15) positioned in head pin housings (34) remain outside of the mechanism head (14). Ends of mechanism mounting pins (15) remaining outside enter into movement holes (17) that are symmetrical on the mechanism right cover (8) and mechanism left cover (6) and exist in twos on each cover.

[0105] Said movement holes (17), as also can be seen in FIG. 8, are in a longitudinal space form. This enables ends of mechanism mounting pins (15) to move in and out in the movement holes (17). However, the direction in which the movement holes (17) expand is not parallel to horizontal or perpendicular plane. Said direction comprises a slope such that it constitutes approximately 35 degree angle according to ground plane. Movements, which mechanism head (14) carries out depending on firing through the fact that end portions of mechanism mounting pins (15) stay in movement holes (17), is a such extent that movement holes (17) allow mechanism mounting pins (15). Shape of space that the movement holes (17) comprises restricts movements of mechanism head (14). Movement of the mechanism head (14) takes place in accordance with the movement which mechanism mounting pins (15) carries out along axis of the movement holes (17).

[0106] As can be seen in FIG. 13, there is a space structure expanding inwardly on the lower surface of mechanism head (14). Said space structure is the segment housing (24). Segment housing (24) exists in the very center of oval space structure formed on the lower surface of mechanism head (14) so as to block the cover mounting pin (16). Pin segment (7), as can be seen in FIG. 14, is positioned into the segment housing (24). Pin segment (7) has a structure of which two ends are in a spring form and of which said ends exactly coincide with bottom of the cover mounting pins (16). Main objective of the pin segment (7) is to prevent cover mounting pins (16) from moving in perpendicular direction in accordance with the ground plane.

[0107] Firing pin (5) structure, to which cock structure strikes to start the firing, are positioned in the firing pin housing (30) on the back surface of mechanism head (14), in case the firearm structure in which the mechanism structure subject to the invention is triggered so as to be fired. Said firing pin (5) enters through firing pin housing (30) on the back surface of mechanism head (14), however end portion of firing pin (5) may stick out of firing pin cavity (27) on the front surface of the mechanism head (14). End portion of firing pin (5) that may stick out of firing pin cavity (27) is thinner than its remaining section.

[0108] A firing pin spring (13) is located in the section in which the thinner end of firing pin (5) structure positioned in the mechanism head (14) exists. Firstly, the firing pin spring (13), then the firing pin (5) enters in firing pin housing (30). Objective of said firing pin spring (13) is to enable the firing pin (5) moving forward so as to carry out the firing process to take back its old position. There is a tether pin housing (35) at the point close to upper edge of the side surface of mechanism head (14). After the firing pin (5) is positioned in the firing pin housing (30), a tether pin for firing pin located in the tether pin housing (35) and firing pin (5) structure are fixed into the mechanism body (14). There is some space in the section which tether pin for firing pin (11) coincides with on the upper of portion of firing pin (5). Tether pin for firing pin (11) is placed on said tether bearing (18) on the firing pin (5). Thus, Firing pin (5) structure forced to move with the effect of firing pin spring (13) while in a normal position may stay in firing pin housing (30) because tether pin for firing pin (11) exists in tether bearing (18). Said tether bearing (18) on the upper surface of firing pin (5) expands slightly towards rear end of firing pin (5) structure. Therefore, there is some space at the back portion of tether pin for firing pin (11). In the course of firing, when firing pin (5) moves forward, tether pin for firing pin (11) moves along the tether bearing (18) and does not prevent firing pin (5) from moving.

[0109] While placing oppositely mechanism right cover (8) and mechanism left cover (6) at sides of mechanism head (6), a recoil spring tube (4) is placed exactly on the mechanism head (6) such that it coincides with between upper edges of mechanism right cover (8) and mechanism left cover (6). As can be seen in FIG. 3, said recoil spring tube (4) is fastened between mechanism right cover (8) and mechanism left cover (6). The covers are seated on the symmetrical protrusion structures being on side surfaces of recoil spring tube (4) so as to ensure fastening process. There are wide tube housings (21) exactly at the middle of upper edge sections of cover structures. Wide tube housings (21) are seated exactly on the wide tube protrusions (38) that are symmetrically positioned on the two side surfaces of recoil spring tube (4). Further, there are in total four small tube protrusions (37) on the side surfaces of recoil spring tube (4) such that they are on two sides of wide tube protrusions (38). While wide tube protrusions (38) are seated in wide tube housings (21), small tube protrusions (37) are seated in small tube housings (20) in twos on the cover structures. Small tube housings (20) are positioned such that they are at both edges of wide tube housings (21) on the upper section of cover structures. Therefore, while seating wide tube protrusions (38) in wide tube housings (21), small tube protrusions (37) are synchronously seated properly in the small tube housings (20). Thus, mechanism right cover (8) and mechanism left cover (6) are mounted very firmly to recoil spring tube (4).

[0110] There is a rod housing (39) in the form of cylindrical space expanding inward at the end portion facing to opposed side of barrel (61) of the recoil spring tube (4). There is another space structure with smaller diameter at the end facing to barrel (61) of the recoil spring tube (4). Guide rod (1) that can be seen in FIG. 4 is positioned in rod housing (39). Before positioning guide rod (1) in the rod housing (39), recoil spring (2) is seated on the end portion to be inserted in the guide rod (39). A spring plate (3) is attached to the same end of guide rod (1) after positioned on the guide rod (1) in order for recoil spring (2) to stay on the guide rod (1). Thus, recoil spring (2) can stay on the guide rod (1). Spring plate (3) can move on the guide rod (1). Further, Spring stopper (46) in the form of a protrusion that is positioned at the point close to the end with no spring plate (3) exists in the middle section of guide rod (1). Spring stopper (46) is a structure that prevents recoil spring (2) from moving backward on the guide rod (1) and helps recoil spring (2) with staying on the guide rod (1).

[0111] Guide rod (1), together with the recoil spring (2) thereon, is positioned in rod housing (39) at the back section of recoil spring tube (4) such that it is the end with spring plate (3). Diameter of the space at frond side of recoil spring tube (4) is smaller than diameter of spring plate (3). Therefore, the spring plate (3) positioned in recoil spring tube (4) at the end of guide rode (1) cannot stick out of the end at the front side of recoil spring tube (4). Main objective of the guide rod (1) is to guide the recoil spring (2) ejecting empty cartridge in the chamber and loading a new cartridge in the barrel (61) in the course of firing, and enabling to take back its location in the normal position by pushing the mechanism sliding backward so as to cock firearm from back side of the firearm towards front side in which the barrel (61) takes place.

[0112] There is respectively one extractor housing (33), which is positioned symmetrically according to each other in both sides, at the front side in wide end portion of mechanism head (14). Extractor housings (33) are inward space structures on the side surfaces of mechanism head (14). Extractor (9) structure that can be seen in FIG. 9 is positioned in one of the extractor housings (33). The extractor housing (33), in which the extractor is to be positioned, is determined according to the direction which firearm structure ejects the empty case. Therefore, its position can be varied preferably.

[0113] Extractor (9) structure, as can be seen in FIG. 10, comprises an extractor pin housing (49) in the form of space at its middle section. Process of positioning the extractor (9) in extractor housing (33) is carried out by means of extractor pin housing (49). Extractor (9) structure, which is positioned in extractor housing (33) such that extractor pin housing (49) stays inside, are fastened by means of extractor pin (12) positioned in extractor cavities (22) on the upper side of mechanism head (14). Extractor cavities (22) are structures in the form of two cylindrical spaces that are positioned symmetrically according to each other on the upper side of mechanism head (14). Said extractor pin (12) goes through extractor pin housing (49) by keep proceeding after entering in extractor cavity (22). Therefore, extractor (9) structure can be positioned in extractor housing (49) by means of extractor pin (12).

[0114] There is a spring protrusion (48) facilitating the extractor (9) to move at the back end, which is in a opposite direction of barrel, of extractor (9) structure positioned in extractor housing (33) by means of extractor pin (12). Spring protrusion (48) coincides exactly with the extractor spring cavity (32) when extractor (9) structure is positioned in extractor housing (33). Extractor spring cavity (32) is on the back end of extractor housing (33). Extractor spring (10) is positioned in extractor spring cavity (32). Thus, extractor spring (10) remains between extractor spring cavity (32) and spring protrusion (48). Extractor (9) structure may conduct circular movements depending on jamming and expanding movements of extractor spring (10) such that it takes the extractor pin (12) as the center.

[0115] Extractor (9) structure is at the end on front side of mechanism head (14). Since the location in which mechanism head (14) exists is the very back portion of barrel (61) structure, the extractor (9) structure stays exactly behind the barrel (61) structure. Even end portion of extractor (9) structure facing towards the barrel (61) makes a contact with the cartridge structure positioned in the barrel (61) so as to be fired. There is a cartridge holding protrusion (45) in the inward protruding form, which can be seen in FIG. 10, at the end portion of the extractor (9) facing to barrel. Cartridge holding protrusion (45) is a structure that is designed so as to grip the base edge which exists in the base of cartridge in barrel and protrudes outward. There is a cartridge base space (47) in the immediate interior portion of cartridge holding protrusion (45). Thus, when cartridge holding protrusion (45) grips the protrusion at the cartridge base, said protrusion at the cartridge base is seated exactly on the cartridge base space (47). Thus, cartridge holding protrusion (45) can grip ideally the cartridge base.

[0116] Main objective of the extractor (9) is to move the empty cartridge case that remains in the barrel backward by means of mechanism after firing processes is conducted. It is possible to move the empty cartridge case by means of cartridge holding protrusion (45) and cartridge base space (47). Extractor (9) enables the empty case to strike to ejector by moving the empty cartridge case backward and to eject it out of firearm structure.

[0117] There is a lock protrusion (23) in the protruding form that looks like a triangle when looked from top, as can be seen in FIG. 11, on the upper surface of wide section in front side of mechanism head (14). Said lock protrusion (23) is one of the most important members contacting the mechanism group and barrel group to each other. Mechanism rail (50) that is the backmost component of barrel group, as can be seen in FIG. 27, is positioned between said two structures such that it coincides immediately with upper side of the mechanism head (14) and immediately with underneath of recoil spring tube (4). On the lower surface of mechanism rail (50), there is a lock housing (51) in a space form in the section coinciding with lock protrusion (23) on the mechanism head (14). Space form that lock housing (51) comprises is in a form and structure that exactly fits in lock protrusion (23). Main objective of the mechanism rail (50) is to lock mechanism head (14) for the purpose of pushing the bullet shot from cartridge by the effect of firing pressure in the course of firing.

[0118] Mechanism head (14) enables to shoot the bullet through barrel (61) by pushing it by means of gas pressure arisen from the explosion of the cartridge in the barrel by fastening to barrel (61). Mechanism head (14) moves downward and forward traversely during its movement towards the barrel (61) thanks to its design, wherein it is locked to barrel (61) by moving upward and backward in the axis of movement holes (17) after its movement towards barrel (61) is finished. Mechanism head (14) prevents powder gas pushing bullet or shots from leaking by delaying first movement of mechanism pushed back after cartridge is fired until bullet or shots leave the barrel (61). At this point, firstly lock protrusion (23) on the mechanism head (14) leaves from the lock housing (51) on lower surface of mechanism rail (50) therein. After that, mechanism head (14) moves downward. It moves backward as a whole with the components in mechanism head (14) after mechanism head (14) and mechanism rail (50) separate from each other. Mechanism head (14) enables to position both lock and cartridge in barrel (61) by way of pushing them.

[0119] There is magazine disc (52) at the front end facing to barrel (61) of mechanism rail (50). Back end of the barrel (61) exists in the magazine disc (52). As can be seen in FIG. 18, upper portion of the magazine disc (52) comprises a structure that can be mounted to mechanism rail (50). This allows said two structures to stay in a stabile position according to each other. Therefore, Types of montage between said structures may preferably in the form of various structures, different protrusion forms and space forms according to those.

[0120] There is a barrel crown (53) structure immediately in the front portion of mechanism rail (50) and magazine disc (52) in a mounted to each other form. The barrel crown (53) that can be seen in FIG. 20 is in a very important and critical point. Basically, it is a structure that has two circular spaces positioned upside-down. Back end of the barrel (61) goes through the lower space of the barrel crown (53) before entering in magazine disc (52). Its upper space serves as a juncture of recoil spring tube (4) and push tube (57). Its main objective is to move synchronously the barrel (61) structure at its lower portion and the push tube (57)-recoil spring tube (4) that move based on gas at its upper portion.

[0121] Push tube (57) is positioned on the barrel (61) structure such that it coincides with immediate front portion of recoil spring tube (4). Back end of the push tube (57) stays in the barrel crown (53). Push tube (57) moves mechanism head (14) backward by pushing the movement obtained from gas piston (42) in the gas chamber (41) at its front side to recoil spring tube (4) in the course of firing. In case of a normal position without firing, while recoil spring tube (4) and push tube (57) do not make a contact with each other, the movement arisen by means of gas pressure in the course of firing opens the lock and feeds the firearm by contacting subsequently these three component to each other.

[0122] There is a push spring (54) on the push tube (57). Push spring (54) is positioned on the push tube (57) such that it is at the back portion thereof. A cocking handle segment (55) is attached in front of push spring (54). Cocking handle segment (55) restricts movements of the push spring (54) and prevents push tube (57) from releasing from its front end. Since back end of the push spring (54) enters in the barrel crowns (53) along with the push tube (57), push spring (54) is squeezed between cocking handle segment (55) and recoil spring tube. Main objective of the push spring (54) is to enable the push tube (57) moving from front side towards back side to take its first position by means of the effect of movement obtained from gas piston or cocking handle (58).

[0123] Since cocking handle segment (55) has a smaller diameter than the cocking handle protrusion (25) in the protruding form on the push tube (57), it is not possible to go over the cocking handle protrusion (25). There is cocking handle housing (26) on side surface of the section in which cocking handle protrusion (25) exists. Cocking handle housing (26) is the structure in which cocking handle (58) is positioned. Cocking handle segment (55) fastens cocking handle (58) into cocking handle housing (26) by means of pushing the cocking handle segment (5) at the front side of push spring (54).

[0124] Cocking handle (58) basically enables to cock the firearm by drawing mechanism backward by a user, to load cartridge in the barrel and make it ready to fire. It has an ergonomic design which user can easily move with his/her finger. It can be attached to right side or left side according to user's preference thanks to symmetrical design of the cocking handle housing (26).

[0125] A tube lid (60) is attached to front end of the push tube (57) structure. Said tube lid (60), as can be seen in FIG. 22, has a structure in the cylindrical form. An end of tube lid (60) has a structure that can enter in front end of the push tube (57) structure. There are pin cavities (29), which are positioned on the two opposed edge and are in a uniform space form comprising a structure in which push tube pin (59) can enter, on the end of tube lid (60) that can enter in push tube (57). Similarly, there are push tube holes (31) on the two edges that coincide with upper side of pin cavities (29) of the push tube (57). Push tube holes (31) exist exactly on the pin cavities (29) and tube lid (60) and push tube (57) are firmly mounted to each other by means of one push tube pin (59) that is positioned in said cavity structures.

[0126] As can be seen in FIG. 22, there are push rail spaces (36), which are in a symmetrical structure according to each other, at both sides of upper section of the tube lid (60) that is positioned at the front end of push tube (57). Said push rail spaces (36) are the space structures in which push rail (56) that can be seen in FIG. 16 can be positioned from both sides therein. Push rail (56) is comprised of two, thin and uniform tube structures which are positioned immediately on the push tube (57) structure, are in a parallel position to the push tube (57) and are in parallel location to each other. Push rail (56) structure is positioned such that it goes through push rail spaces (36) on the tube lid (60).

[0127] Both free ends of push rail (56) enter separately in two push rail housing (28) on the barren crown (53). Therefore, push rail (56) structure is in a stabilized position. Main objective of the push rail (56) is to move push tube (57) in a parallel direction to the barrel (61) axis. It appoints the movement axis of push tube (57).

[0128] There exists gas chamber (41) immediately in front of free end of facing to barrel (61) muzzle of the tube lid (60) that is positioned in the front portion of push tube (57). Gas chamber (41) is positioned on the barrel (61) structure. There exists gas piston (42) exactly in the middle of gas chamber (41). Gas piston (42) is the leading one of structures initiating the movements which the mechanism carries out with the effect of gas pressure arisen from firing. Gas piston (42) both exists in gas chamber (41) and is positioned such that its back end is exactly in front of tube lid (60). Therefore, it allows tube lid (60) to move push tube (57) backward by striking to tube lid (60) in the moment in which it moves backward with the effect of gas pressure. Thus, the push tube (57) moving backward strikes to recoil spring tube (4) at its back. Recoil spring tube (4) enables firing circle to be completed by means of transmitting the movement obtained from push tube (57) to the mechanism. At this point, recoil spring (2) allows the mechanism sliding backwards by the drive obtained from the push tube (57) to move back towards barrel (61) and be locked.

[0129] There exists a gas hole (40) in the area taking place on the barrel (61) in the interior surface of gas chamber (41). Said gas hole (40) transmits the gas in barrel (61) to the gas chamber (41). There exist multiple discharge holes (44) positioned to be at least one on the upper surface of gas chamber (41) which does not make a contact with the barrel (61) and faces outwards. Main objective of the discharge holes (44) is to discharge the excessive gas and to enable gas residues/particles entered in gas chamber (41) to be discharged in case there is too much burnt powder gas filled in the gas chamber (41). Thus, it is ensured that gas chamber (41) gets dirty later than the usual, and to increase the firing number that requires cleaning. There exists a gas chamber lid (43) at the end portion of gas chamber (41) facing towards end of the barrel (61). Gas chamber lid (43) keeps gas chamber (41) closed. It is fastened by means of lid pin (62).

[0130] It is provided a new mechanism that can be used in both rifles and shotguns by means of the mechanism structure subject to the invention. It is provided a structure with higher efficiency by means of designs of the components which constitute the structure of said mechanism. It is provided a new firing power increased mechanism by means of structures that are employed during use of gas pressure and said structures' interaction with each other.