Carabiner kit with automatic opening folding stock

Abstract

The invention comprises a folding stock (17) used in carbine kits that convert short-barrelled firearms (22), featuring a folding stock (17) that enables the firearm (22) to be attached to the carbine kit in a single motion without prior preparation on the firearm (22) or the carbine kit, characterised in that the hinge (1) is positioned on the firearm slot (21), a hinge pin (4) centred in the pin socket (1A) of the aforementioned hinge (1), a hinge spring (6) centred on the aforementioned hinge pin (4), and a locking tongue (9) that locks the aforementioned folding buttstock (17) in the open and closed positions.

Description

[0001] DECCRIPTION

[0002] CARABINER KIT WITH AUTOMATIC OPENING FOLDING STOCK

[0003] Technical Field

[0004] The invention relates to a folding buttstock with an automatically opening hinge.

[0005] The folding stock in question has a buffer piece that presses against the beavertail and the rear of the grip of the pistol, as well as a vice piece. Therefore, no part of the pistol or carbine kit requires disassembly, opening, or the addition of parts. The folding stock ensures that the pistol slides straight into pistol's slot, making it ready to fire.

[0006] State of the Art

[0007] In the current technique, before mounting the pistol onto the converter carbine kits, the parts on the kit are opened to prepare for the pistol to be inserted. In some kits on the market, the pistol is disassembled and the slide and barrel are used, or a pull handle is attached to the slide. There are kits that require the use of alien keys or similar tools for these preparatory steps.

[0008] In the current technique, preliminary preparation is required for the pistol to be attached to the kits in all products, and multiple steps are necessary.

[0009] The carbine kit first began in the 1870s with the addition of a buttstock to the Colt Buntline pistol. The literal meaning of the word ‘karabina’ is light infantry rifle. These short-barrelled, lightweight rifles were first used during the First World War.

[0010] Converter carbine kits that convert pistols into rifles are advantageous for use indoors during intense, fast-paced combat in urban environments. Carbine kits increase the pistol's effective firing range and provide advantages thanks to the auxiliary devices (red dot, torch, spare magazine, etc.) fitted to them. There are carbine kits that fit into the vehicle's torpedo compartment.

[0011] In order to understand the difference between the carabiner kit with invention-patented components and other kits, the manufacturers, model names and patent numbers of the four most commonly produced carabiner kits are listed below.1. Manufactured by CAA Industry LTD Company, MICRO RONI CONVERSION KIT and patent no: US8887432B2.

[0012] 2. Manufactured by Flux Defense, FLUX 365 RAIDER and patent no: US11.156.433 3. Manufactured by Recover Tactical, P-IX TACTICAL CONVERSION KIT and patent no: US11692790

[0013] 4. Manufacture by Recover Tactical, 20 / 20N STABILIZER KIT and patent no: US113069B2, 11592262

[0014] Purpose of the Invention

[0015] The purpose of the invention is to provide a folding stock that has parts that exert pressure on the hinge that can be opened automatically or with trigger finger pressure and on the pistol beavertail area.

[0016] The most important purpose of the invention is to enable the pistol to be attached to the carbine kit in a single step without any preliminary preparation on the pistol and carbine kit, and to be ready for firing.

[0017] The pistol stays in the housing thanks to the picatinny rail locks. Thanks to the fixing apparatus at the front end of the pistol slot, the pistol locks into the picatinny rails and is gets stuck within the slot. Due to the physical structure of the folding stock hinge, it locks itself when opened, and the pressure from the buffer and vice on the stock reduces the vibration of the stock on the pistol slot and the vibration of the pistol in the slot.

[0018] The hinge and folding stock can be opened in two ways, depending on preference; 1.Option; When the front end of the pistol frame enters the pistol slot and the pistol is seated in the slot, the folding stock automatically opens and locks itself.

[0019] 2. Option; As the rear end of the lock release lever inside the pistol slot is closed, the front end of the pistol frame is prevented from striking, and the folding stock does not automatically open when the pistol is placed in the slot.Opening the folding stock: When the trigger finger pushes the release button on the locking lever, the folding stock automatically opens and locks itself via the hinge. The buffer pressure on the folding stock begins when the folding stock is opened.

[0020] Description of Figures

[0021] Figure 1 : The invention is an image of the front cross of an automatic folding stock carbine kit with a pistol and silencer.

[0022] Figure 2: This is a rear cross-section view of the kit with the folding stock closed, empty and with a spare magazine.

[0023] Figure 3: This is an image of the pistol entering the empty carbine kit with the folding stock closed.

[0024] Figure 4: It is an image of the front end of the pistol frame striking the rear end of the unlocking lever.

[0025] Figure 5: This is a view of the carbine kit with the folding stock open, taken from the rear cross-section with the pistol.

[0026] Figure 6: This is a view of the folding stock and the parts on it from the right side. Figure 7: It is a separated view of the folding stock body and the parts on it.

[0027] Figure 8: This is a view of the upper cross of the folding stock body.

[0028] Figure 9: This is a view of the folding stock body from the lower cross.

[0029] Figure 10: A two-dimensional image of the vice handle.

[0030] Figure 11 : A one-dimensional image of the vice handle.

[0031] Figure 12: This is a rear cross view of the vice and buffer thread shaft.

[0032] Figure 13: This is a view of the vice and buffer thread shaft from the front cross with the buffer pressure spring.

[0033] Figure 14: Rear cross view showing the installation of the buffer, pressure spring and thread shaft.

[0034] Figure 15: This is a side view of the buffer pressing against the rear part of the pistol's beavertail and cap.Figure 16: This is a view of the tampon from the rear cross.

[0035] Figure 17: This is a view of the tampon from the upper cross.

[0036] Figure 18: This is from above view of the locking lever and lock spring.

[0037] Figure 19: This is a side view of the locking lever.

[0038] Figure 20: This is a view of the locking lever from the rear cross.

[0039] Figure 21 : This is an image of the rear end of the lock release lever.

[0040] Figure 22: This is an image of the hinge section at the rear end of the lock release lever, broken down into parts.

[0041] Figure 23: This is a cross view of the lock cover.

[0042] Figure 24: This is an image of the inside of the lock cover.

[0043] Figure 25: This is a rear cross view of the lock tongue.

[0044] Figure 26: This is a view of the lock tongue from the front cross.

[0045] Figure 27: Images of the pin used in the lower spring hinge.

[0046] Figure 28: It is a three-dimensional image of the hinge's lower arm spring.

[0047] Figure 29: Side view of the pin screw.

[0048] Figure 30: It is an image of the hinge's sequentially separated internal parts.

[0049] Figure 31 : This image shows the mounting of the hinge pin with a lower arm spring. Figure 32: This is a top cross view showing the hinge and its components in assembled form.

[0050] Figure 33: This is a view from below showing the hinge and its components in their assembled state.

[0051] Figure 34: Image of the spring-loaded hinge model attached from below.

[0052] Figure 35: Top view of hinge model with lower mounted spring.

[0053] Figure 36: Rear view of hinge model with lower mounted spring.

[0054] Figure 37: View from below of hinge model with lower mounted spring.Figure 38: This is an image of the hinge model with a lower-mounted spring and the lock tongue when the folding stock is open.

[0055] Figure 39: This is an image of the hinge model with a lower-mounted spring and the lock tongue when the folding stock is close.

[0056] Figure 40: Top view of the hinge model with a lower-mounted spring and the lock tongue when the folding stock is open.

[0057] Figure 41 : Top view of the hinge model with a lower-mounted spring and pulling back the lock tongue mounted on the lock lever when the folding stock is open.

[0058] Figure 42: This is a top view of the locking tongue passing over the transition surface as the folding stock begins to move from the open position to the closed position. Figure 43: Top view of the locking tongue and the model hinge with lovwer mounted spring , with the folding stock in the closed position.

[0059] Figure 44: View of the pin screw from the top cross.

[0060] Figure 45: This is a view of the rondela from the top cross.

[0061] Figure 46: View of spring model with from above arms.

[0062] Figure 47: This is a view of the pin from the top cross and below cross, used in hinges model with from above arms.

[0063] Figure 48: It is a top cross view of the hinges model with from above maunted spring and internal components.

[0064] Figure 49: Top cross view of the pin parts and the spring model with from above arms. Figure 50: This is a top cross view the assembled internal components and the hinges model with from above maunted spring.

[0065] Figure 51 : This is the left top part and rear view of the top-mounted spring hinge model. Figure 52: This is the right lower part and rear view of the top-mounted spring hinge model.

[0066] Figure 53: This image shows the connection between the top spring hinge and the inner parts with the folding stock body.

[0067] Figure 54: This is a view of the lock- slot hinge from the top left diagonal.Figure 55: Top view of the lock-slot hinge.

[0068] Figure 56: This is a view of the lock- slot hinge from the top, right cross.

[0069] Figure 57: This is a view of the lock- slot hinge from below.

[0070] Figure 58: This is an image showing the operation of the locking lever, lock spring and lock- slot hinge.

[0071] Figure 59: This is a view from the top left corner of the pistol slot with the lock- slot hinge assembly fitted, showing the pistol insertion section.

[0072] Figure 60: This is a view from the top left of the pistol slot with lower spring hinge assembly, showing the gun entry section.

[0073] Figure 61 : This is a view of the right, front, upper cross of the pistol slot.

[0074] Figure 62: This is a side view of the fixed cover mounted on the pistol slot.

[0075] Figure 63: This is a scattered view of the fixing apparatus on top of the gun bed and the picatinny rail locking mechanisms.

[0076] Figure 64: This is a view of the right rear lower cross of the pistol slot.

[0077] Figure 65: This is an image of the parts that make up the fixing apparatus.

[0078] Figure 66: This is an image of the pressure exerted by the fixing parts on the front end of the pistol's frame.

[0079] Figure 67: This is an image showing the positions of the fixing apparatus and additionally the vice and buffer on the folding stock that provide compression after the pistol is placed in the pistol slot.Description of References in Figures

[0080] 1 : Hinge model with lower mounted spring

[0081] 1A: Pin slot

[0082] 1 B: Triangular slot

[0083] 1C: Transition surface

[0084] 1D: Square slot

[0085] 1 E: Mounting surface

[0086] 1 F: Movement surface of the spring arm

[0087] 1 G: Lower surface of the folding stock hinge

[0088] 1 H: Pin’s screw head slot

[0089] 2: Hinges model with from above maunted spring

[0090] 2A: Pin slot

[0091] 2B: Triangular slot

[0092] 2C: Transition surface

[0093] 2D: Square slot

[0094] 2E: Mounting surface

[0095] 2F: The underside of the hinge model with top-mounted spring assembly 2G: Surface on which the folding stock body moves

[0096] 2H: Surface on which the upper arm of the spring moves

[0097] 3: Hinge with locking slot

[0098] 3A: Pin slot

[0099] 3B: The slot that keeps the folding stock open

[0100] 3C: Transition surface

[0101] 3D: The slot that keeps the folding stock closed

[0102] 3E: Mounting surface3F: Movement surface of the spring arm

[0103] 3G: The underside of the hinge model with lock slot 3H: Pin’s screw head slot

[0104] 4: Lower spring hinge's pin

[0105] 4A: Spring fixing hole

[0106] 4B: The straight edge of the pin head

[0107] 4C: Pirn billing area

[0108] 4D: Pin tip

[0109] 5: Top spring hinge model's pin

[0110] 5A: Spring fixing hole

[0111] 5B: The straight edge of the pin head

[0112] 5C: Pin tip

[0113] 6: Lower arm spring of the hinge

[0114] 6A: Spring head

[0115] 6B: Spring arm end

[0116] 7: Top arm spring of the hinge

[0117] 7A: Spring head

[0118] 7B: Spring arm end

[0119] 8: Pin screw

[0120] 8A: Contact surface of the pin screw

[0121] 9: Lock tongue

[0122] 9A: Tip of the tongue lock

[0123] 9B: Screw hole

[0124] 9C: Spring tip hole

[0125] 9D: Lock tongue's hole10: Buffer

[0126] 10A: Contact surface of the buffer

[0127] 10B: Buffer arm

[0128] 10C: Buffer sledge

[0129] 10D: The part of the tampon that enters the folding stock body 10E: Vise and buffer shaft passage hole

[0130] 10F: Hole into which the shaft end is inserted

[0131] 10G: The pressure surface of the buffer spring

[0132] 10M: The long gripping section of the buffer

[0133] 10N: The short gripping section of the buffer

[0134] 11 : Buffer press spring

[0135] 12: Thread shaft of the vice and buffer

[0136] 12A: Front end of the thread shaft

[0137] 12B: The thread section of the thread shaft

[0138] 12C: Vise handle shaft fixing hole

[0139] 12D: Allen key slot of the shaft

[0140] 13: Vise handle

[0141] 13A: Shaft hole of the vise handle

[0142] 13B: Vise handle screw hole

[0143] 14: Shaft cover

[0144] 15: Locking lever

[0145] 15A: Front end of the locking lever

[0146] 15B: Screw hole of the locking lever

[0147] 15C: Spring section of the locking lever

[0148] 15D: Arms holding the folding stock body on the locking lever15E: The tip that enters the lock slot of the folding stock

[0149] 15F: Rear end of the lock lever

[0150] 15H: Locking lever hinge

[0151] 15P: Lock lever opening button

[0152] 16: Lock spring

[0153] 17: Folding stock body

[0154] 17A: Pin hole

[0155] 17B: Cover transition section

[0156] 17C: The hole into which the spring arm end fits

[0157] 17D: Hole of the lock lever

[0158] 17E: Surface from which the lock spring derives its force

[0159] 17F: The path the lock lever enters

[0160] 17G: The slot into which the buffer fits

[0161] 17H: The thread hole into which the vise and buffer thread shaft are inserted 17K: Lock lever slot

[0162] 17L: Screw hole

[0163] 17M: Cheek pad of the folding stock

[0164] 18: Lock cover

[0165] 19: Screw

[0166] 20: Washer(rondela)

[0167] 20A: Top surface of the washer

[0168] 20B: Straight edge of the washer

[0169] 21 : Pistol slot

[0170] 21 A: The slide stop lever button's slot of the pistol.

[0171] 21 B: Hinge mounting surface

[0172] io21 C: Pistol entry section

[0173] 21 D: Red dot and similar device mounting surface

[0174] 21 E: Screw holes

[0175] 21 F: The slot into which the rear end of the lock lever fits 21 G: Rails corresponding to picatinny rails

[0176] 22: Pistol

[0177] 22A: Front end of the pistol frame

[0178] 22B: Picatinny rail

[0179] 22C: The slide stop lever button of the pistol

[0180] 22D: Backside of the pistol handle

[0181] 22E: Beavertail

[0182] 22F: Pistol slide

[0183] 23: Fixing apparatus

[0184] 24: Fixing apparatus cover

[0185] 25: Picatinny rail locking mechanism and lever

[0186] 26A: Magazine

[0187] 26B: Magazine release button

[0188] 26C: Spare magazine compartment

[0189] 27: Red dot

[0190] 28: Silencer

[0191] 29: LanternDetailed Description of the Invention

[0192] The invention provides a configuration that enables the pistol (22) to be fitted to the carbine kit in a single step without the need for prior preparation in the carbine kit, which includes a folding buttstock (17) used in carbine kits that convert the pistol (22). The invention in question, in terms of its innovative feature, comprises a hinge (1) having a pin socket (1A) positioned on the pistol slot (21), the hinge pin (4) centred on the aforementioned pin slot (1A), the hinge spring (6) centred on the aforementioned hinge pin (4), and the locking tongue (9) that activates / deactivates the folding and locking of the aforementioned folding stock (17). This hinge (1) has a half-crescent-shaped transition surface (1C) and a square-shaped slot (1D) and triangular-shaped slot (1B) formed on this hinge (1). Furthermore, the lock tongue (9) includes a triangular-shaped lock tongue tip (9A) that slides along the transition surface (1C) of the aforementioned hinge (1) to lock.

[0193] Figure 1 shows the carbine kit with the pistol (22) attached and the folding stock (17) open. A silencer (28) is visible on the pistol (22), and a red dot sight (27), flashlight (29), and spare magazine (26A) are visible on the kit. Figure 2 shows the carbine kit empty, with the folding stock (17) closed. Figure 3 shows the pistol (22) not fully seated in the pistol slot (21) of the carbine kit, and because it is not fully seated, the automatically deployable folding stock (17) is seen to be closed.

[0194] In Figure 4, as the pistol (22) advances within the pistol slot (21), the front end of the frame (22A) strikes the rear end of the unlocking lever (15F), causing the rear end of the unlocking lever (15F) moves forward within the tip slot (21 F), thereby unlocking the latch on the hinge (1 ,2,3), and due to the inclined edge of the rear end of the unlocking lever (15F), the closed folding stock (17) begins to open outward. Figure 5 shows the pistol (22) fully seated in the pistol slot (21) and the folding stock (17) opened. When the folding stock (17) is opened, it locks due to the physical shape of the folding stock hinge (1, 2, 3) and the lock tongue (9), and the folding stock hinge (1, 2, 3) remains locked until the opening button (15P) on the lock lever on the folding stock (17) is pulled.

[0195] Figure 6 shows a side view of the folding stock body (17) and the parts on it. The shaft cover (14) and lock cover (18) are seen to be detached from their positions, and the buttstock cheek pad (17M) is seen to be removed. Figure 7 shows a view of the foldingstock body (17) and all the parts on it in a disassembled state. Figures 8 and 9 show the bare buttstock body (17) and the slots and holes where the other parts are mounted.

[0196] Explains when and how to combine Figures 10 and 12. The rear end of the vice and buffer thread shaft (12) enters the shaft hole (13A) of the vice handle (13). The screw (19) passes through the mounting hole (13B) of the handle and is tightened through the shaft fixing hole (12C) of the vice handle. Before this assembly I have described, the vise and buffer thread shaft (12) are inserted into the thread hole (17H) on the folding stock body (17) using a alien spanner, and then you can adjust the pressure exerted by the buffer (10) on the beavertail (22E) by tightening the alien slot (12D). As shown in Figure 14, after the buffer pressure spring (11) passes over the front end (12A) of the vise and buffer shaft (12), the shaft (12) passes through the shaft passage hole (10E) on the buffer (10), the front end of the shaft (12A) enters the shaft front end entry slot (10F) on the buffer (10), and the buffer pressure spring (11) also presses against the pressure surface (10G), reducing the vibration of the folding stock (17). Referring to Figures 15, 16, and 17 on Page 10, the buffer (10) applying pressure to the beavertail (22E) and the grip back (22D) of the pistol (22) can be seen. The buffer (10) must move back and forth because it transmits the varying pressures of the pressure spring (11) and the vise shaft (12). It moves back and forth in the buffer slot (17G) located in the folding stock body (17).

[0197] When examining Figures 15, 16 and 17, the portion of the buffer (10) that enters the folding stock (10D) enters the buffer slot (17G), and the buffer slide (10C) portions move on the buttstock body (17) upper surface. The short gripping section (1 ON) of the buffer is shorter than the long gripping section (10M), the reason being that the buffer (10) opens without snagging when the folded stock (17) in the closed position is opened. The reason for the long grip section (10M) of the buffer is that, after the folding stock (17) is opened, it presses the pistol (22) forward and also applies pressure from the left side, compressing it between the hinges (1,2,3). This reduces vibration on the pistol kit and folding stock before and after firing.

[0198] When examining Figures 18, 19 and 20, the locking lever (15) can be seen, the main function of this part is to lock the folding stock (17), which is folded using the lockingspring (16) and locking tongue (9) attached to the locking lever spring section (15C), in the open or closed position on the hinge (1 , 2, 3).

[0199] The sequence to be followed when placing the locking lever (15) onto the buttstock (17): the part (15E) that enters the locking slot on the buttstock enters the locking lever slot (17K) on the buttstock, the arms holding the buttstock (15D) secure the buttstock body from below and above. In the next step, when the locking lever (15) moves forward, it enters the lever path (17F) and subsequently the locking lever's locking front end (15A) passes through the locking lever hole (17D) on the buttstock body. The next step involves the lock spring (16) passing over the lock lever spring section (15C), followed by the lock tongue (9) being mounted onto the lock lever front end (15A) using the screw (19).

[0200] When examining Figures 21 and 22, the hinge (15H) that allows the rear end of the locking lever (15F) to fold downwards only is visible. If the rear end of the lock lever (15F) is open, as shown in Figure 21 , the inclined end (15F) rests in the slot (21 F) where the rear end of the lock release lever located in the pistol slot (21 ) enters, while the folding stock (17) is closed. When the pistol is to be mounted on the carabine kit, the front end of the pistol frame (22A) strikes the inclined rear end of the lock release lever (15F), unlocking the stock hinge, and the folding stock (17) automatically opens thanks to the hinge spring (6,7).

[0201] If the user does not want the folding stock (17) to open automatically after attaching the pistol (22) to the carbine kit, the inclined rear end (15F) of the locking lever folds downwards from the folding hinge (15H) section. Thus, since the front end of the pistol frame (22A) does not strike it, the locking lever (15) remains stationary and the folding stock (17) does not open.

[0202] The lock cover (18) shown in Figures 23 and 24 has no functional purpose. It is a component that enhances the appearance of the carabiner kit. The lock cover (18) passes over the cover transition section (17B) located on the folding stock, concealing the lock tongue (9).

[0203] The lock tongue (9) and its sections shown in Figures 25 and 26; the hole (9D) into which the front end of the locking lever (15A) enters and the mounting screw hole (9B). In the bottom spring hinges (1 , 3), there is a spring end hole (9C) into which the end ofthe bottom hinge spring arm (6B) enters, and a lock tab (9A) that fits into the slots on the hinges (1, 2, 3) when the folding stock is open and closed.

[0204] Figure 27 shows only the spring-loaded folding stock hinge pin (4) and the sections above it, used in hinges numbered (1) and (3); the spring retaining hole (4A) in the cap section of the pin secures the upper part (6A) of the spring (6) that passes over the pin. The purpose of the straight edge (4B) of the pin cap is to keep the pin stationary within the hinge. The outer diameter measurement of the pin shank section (4C) matches the measurement of the folding stock pin hole (17A).

[0205] Figure 28 shows only the bottom-mounted hinge spring (6) and its components used in the folding stock hinges numbered (1 and 3); the spring head end (6A) enters the pin fixing hole (4A), securing the upper part of the spring. The spring arm end (6B) remaining at the bottom of the spring enters the spring end hole (9C) on the locking tongue (9) or is fixed on the folding stock body (17). The main purpose of the spring is to ensure that the folding stock automatically opens when the folding stock is closed and the folding stock hinge lock system is pulled, thanks to its flexible structure that maintains its final shape.

[0206] Figure 29 shows the pin screw of the folding stock hinge; 1. Its function is to hold the parts on the pin and hinge together. 2. Its function is to fit into the pin’s screw head slot (1 H) on the lower part of the hinge, clearly visible in Figure 37, and is tightened to the maximum extent. After the joining process, the folding stock opens automatically as the spring arm end (6B) moves between the spring arm's moving surface (1F) and the pin’s screw head contact surface (8A), without getting stuck under the hinge. Figure 29 shows the pin screw of the folding stock hinge; 1. Its function is to hold the parts on the pin and hinge together. 2. Its function is to fit into the pin cap slot (1 H) on the lower part of the hinge, clearly visible in Figure 37, and is tightened to the maximum extent. After the joining process, the folding stock opens automatically as the spring arm end (6B) moves between the spring arm's moving surface (1F) and the pin head's contact surface (8A), without getting stuck under the hinge.

[0207] Figure 30 shows the assembly sequence for the hinge and internal components. Figure 31 shows the assembly of the spring-loaded hinge pin (4) on top and the spring-loaded arm (6) underneath. Figures 32 and 33 show the assembly of the parts on the hinge. The pin hole (17A) of the folding stock moves around the pin billing area (4C).Figures 34, 35, 36 and 37 show the shape of the bottom spring hinge (1) from all directions.

[0208] Figure 38 shows the locking tongue (9) with the locking claw (9A) engaging the triangular-shaped recess (1B) on the hinge (1) to hold the folding stock (17) open. Figure 39 shows that when the folding stock (17) is closed in the carbine kit, the lock tongue (9) engages with the square-shaped recess (1D) on the hinge (1), which holds the buttstock closed, and locks itself.

[0209] On page 20, the locking tongue (9) and the bottom-mounted spring hinge (1 ) are shown in four different positions from above. This page explains the principle of automatic opening and manual closing of the hinges (1 , 2, 3) with the locking feature. Let us start with Figure 40; with the buttstock in the open position, the locking tab (9A) on the locking tongue fits snugly into the triangular-shaped slot (1 B) on the hinge that holds the buttstock open. In Figure 41 , with the buttstock in the open position, retracting the locking lever (15) pulls back the locking tongue (9) mounted on the front end of the lever (15A), allowing the buttstock (17) to close. In Figure 42, the locking tongue (9) mounted on the closing folding stock (17) can be seen sliding along the hinge's transition surface (1C) towards the closed position. Figure 43 shows the buttstock (17) in the closed position, with the locking tongue (9) sitting loosely in the square-shaped slot (1D) that holds the folding stock closed, allowing the locking tab (9A) to open easily, and the locking tab (9A) being inclined.

[0210] Referring to Figure 43, examine the position of the hinge (1 ) and the locking tongue (9) when the folding stock (17) is closed, and to be explained how to open the buttstock. There are two options for retracting the locking tongue (9), which is mounted on the front end (15A) of the locking lever (15) that moves back and forth on the folding stock body (17).

[0211] 1. When the pistol (22) enters the pistol slot, the front end of the frame (22A) strikes the rear end of the locking lever (15F), causing the locking tongue (9) is pulled back from the square-shaped recess (1D) that holds the folding stock (1) closed, and subsequently, the folding stock body (17) automatically opens due to the tensioned hinge spring (6,7) located within the mounting pin recess (1A) of the hinge (1).

[0212] Option 2: Fold the rear end of the locking lever (15F) downwards from the folding hinge section (15H). After attaching the pistol (22) to the carbine kit, press the trigger fingeragainst the locking lever release button (15P) to open the folding stock at the desired time.

[0213] Figure 45 shows the washer, whose flat edge (20B) ensures that the washer (20) remains fixed because it contacts the hinge mounting surface (21 B) of the pistol slot. The washer (20) has two functions. Looking at Figure 53, the pin tip (5C) passing through the washer (20) can be seen. 1. Function: The folding stock pin hole (17A) passes through the pin tip (5C) and moves by sliding on its upper surface (20A) thanks to the washer. 2. Function: Again, looking at Figure 53, the spring arm tip (7B) can move without getting stuck under the washer (20).

[0214] Figure 46 shows the top-mounted hinge spring (7), which is only used in the topmounted spring hinge (2) model. It comprises a spring head (7A) and a spring arm end (7B).

[0215] Figure 47 shows the top spring hinge pin (5), which is used in the top spring hinge (2). The spring fixing hole (5A) has a flat edge (5B) on the pin cap and a pin tip (5C). Figure 48 shows the sequence of assembly for all internal components of the top spring hinge (2). Figure 49 shows the top spring hinge pin (5) and the top spring hinge spring (7) that fits over it. Figure 50 shows the assembled state of the top spring hinge and its internal components.

[0216] Figures 51 and 52 show all the structural features of the top spring-loaded hinge (2). When examining Figure 53, the spring arm end (7B) enters the hole (17C) on the folding stock body (17). This ensures the automatic opening of the folding stock.

[0217] Figures 54, 55, 56 and 57 show the lock-sloted hinge (3) in its entirety. Figure 58 shows the front end of the lock lever (15A) engaging with the hinge (3) and the open-holding slot (3B). The purpose of this slot (3B) is to keep the folding stock (17) open.

[0218] Figures 59, 60 and 61 show the pistol slot (21) viewed from the side. Let us begin by introducing the rear section of the pistol slot (21). The pistol entry section (21 C) is where the pistol (22) enters the carbine kit. The mounting surface for red dot sights, etc. (21 D), the folding stock hinge mounting surface (21 B) of the carbine kit, designed with right-handed users in mind, and pistol's the slide lock release lever button slot (21 A) are present on both sides of the carbine kit. Inside the pistol slot (21), the part that secures the pistol (22) is the Picatinny rail counterparts (21 G). When the foldingstock (17) is closed, the slot (21 F) into which the rear end of the locking lever (15F) enters and the screw holes (21 E) that enable part mounting are visible.

[0219] Figure 62 shows a right-side view of the mounting assembly of the fixing apparatus cover (24) for the pistol slot (21 ).

[0220] Looking at the lower part of the pistol slot (21) in Figure 63, the second part securing the pistol (22) to the carbine kit; the Picatinny rail locking mechanism and its lever (25) can be seen. Looking again at Figure 63, the third part securing the pistol (22) to the carbine kit, the fixing apparatus parts (23), can be seen inside the securing apparatus cover (24) separated from the front end of the pistol slot (21 ). The mounting apparatus parts press against the front end of the pistol frame (22A), causing the pistol to become wedged in the Picatinny rail section.

[0221] Figure 64 shows a view of the pistol slot (21 ) from the lower right diagonal.

[0222] Figure 65 shows the parts of the fixing apparatus, and Figure 66 shows the pressure exerted by the fixing apparatus on the front end of the pistol frame (22A).

[0223] In Figure 67, the fourth fixing part, the buffer (10), which secures the pistol (22) to the pistol slot (21) and reduces the recoil of the folding stock (17), is shown. Thanks to the buffer pressure spring (11), when the folding stock is opened, pressure is applied to the pistol's (22) beavertail (22E) and grip back (22D). The fifth fixing part is the vise and buffer thread shaft (12). When the folding stock (17) is opened, extra tightening and fastening is performed by applying thumb pressure to the vise handle (13).Application of the invention to industry

[0224] The invention is completed by transferring the dimensions of the slide and frame of the pistol to be used to computerised CNC machines or 3D printers, and the production is completed by combining the parts obtained by processing the metal (steel, aluminium or titanium) or suitable durable chemical materials with screws or bonding process suitable for the material used. The invention is ready to enter the converter, carabiner kit market with its firsts and advantages. With its charismatic, different image, it will be in demand in the market and will increase the sales rate of the pistol used in the product.

[0225] The patented auto-opening folding stock hinge is suitable for use on rifles on the market.

[0226] The invention can also be applied to airsoft guns.

Claims

CLAIMS1. The invention comprises a carbine kit containing a folding stock (17) used in carbine kits that convert pistols (22), and a folding stock (17) that allows the pistol (22) to be attached to the carbine kit in a single step without prior preparation on the pistol (22), the feature being;- the hinge (1) having a pin hole (1A) positioned on the aforementioned carbine kit,- the hinge pin (4) centred in the pin hole (1 A) of the hinge (1 ) mentioned, - the hinge spring (6) centred on the hinge pin (4) mentioned,- has a locking tongue (9) that activates / deactivates the locking of the folding buttstock (17) mentioned.

2. It is a folding stock (17) in accordance with Claim 1, characterised in that;- hinge (1 ) containing a half-moon shaped transition surface (1 C),- and this hinge (1) has a square-shaped slot (1D) and a triangular-shaped slot (1 B) formed on it.

3. It is a folding stock (17) suitable for claim 1, characterised in that it has a locking tongue (9) containing a triangular locking claw (9A) that slides along the transition surface (1C) of the mentioned hinge (1) and locks.

4. It is a folding stock (17) suitable for claim 1 , characterised in that it has spring heads (6A, 7A) which secure the spring (6, 7) on the pin (4, 5) and within the hinge (1 , 2, 3).

5. It is a folding stock (17) suitable for claim 1 , characterised in that it comprises a spring arm end (6B, 7B) that applies pressure to the stock (17) and the parts thereon, enabling the automatic opening of the folding stock (17).

6. It is a buttstock suitable for any of the above requirements, with the feature of having transition surfaces (1 C, 2C, 3C) that enable the folding stock (17) to open quickly.

7. A buttstock suitable for any of the above requirements, characterised in that the buffer on the folding stock (17) is fitted into a slot (17G) and transferring the force of the buffer pressure spring (11) to the beavertail (22E) and backside of the handle (22D) of the pistol (22), thereby securing the folding stock (17) and the pistol (22).

8. It is a folding stock suitable for any of the above requirements, featuring a short grip section (10N) that prevents the buffer (10) from attaching to the pistol (22) when the folding stock (17) is opened from the closed position.

9. A folding stock suitable for any of the above requirements, characterised by:applying extra pressure to the buffer (10) by rotating within the thread hole (17H) on the folding stock (17); it secures the folding stock (17) and the pistol (22) by means of a buffer threaded shaft (12) with a vise handle (13).

10. A folding stock suitable for any of the above requirements, characterised by: a locking lever (15) which, when the locking spring (16) applies pressure towards the slots on the hinge (1,2,3) of the folding stock (17), locks the folding stock, and when the locking tongue (9) is retracted, disengages the locking system.

11. A folding stock suitable for any of the above requirements, characterised in that it has a lock lever rear end (15F) which, when the pistol (22) enters the pistol slot (21 ), disengages the locking system on the hinge (1 , 2, 3) as a result of the impact of the front end of the pistol frame (22A).

12. A folding stock suitable for any of the above requirements, characterised in that the rear end (15F) of the locking lever has a contact edge inclination which, by continuing the forward movement of the front end (22A) of the pistol frame, causes the folding stock (17) to open by pushing it outwards.13.A folding stock suitable for any of the above requirements, featuring a folding hinge (15H) that folds downwards when required and a release button (15P) on the locking lever that allows the folded stock (17) to be opened by pressure from the trigger finger.

14. It is a folding stock suitable for any of the above requirements, with the feature that it has a pistol slot (21) that allows the pistol (22) to be inserted in a single movement without removing or attaching any parts on the pistol (22) and carbine kit.

15. A folding stock suitable for any of the above requirements, characterised by: a slot (21 F) into which the rear end (15 F) of the locking lever fits, enabling the folding stock (17) to open automatically when the pistol (22) is inserted into the pistol slot (21).

16. It is a folding stock suitable for any of the above requirements, with the feature of having a pistol entry section (21 C) that allows the pistol (22) to enter in the direction of the barrel in a single movement in the pistol slot (21).

17. A folding stock suitable for any of the above requirements, characterised in that the shape of the pistol slot (21) is suitable for actions the pistol slide (22F) and has two slot (21 A) for slide stop lever button's that allow the remaining pistol slide (22F) to be dropped.

18. A folding stock suitable for any of the above requirements, characterised by having a thread hole (17H) into which the vise and buffer thread shaft (12) are inserted, enabling the vise and buffer thread shaft to be secured.

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