Interchangeable barrel mechanism in single shot and break action rifle

Abstract

The subject matter of the invention relates to an interchangeable rifled and / or smoothbore barrel mechanism, which enables users of single-shot break barrel rifles to use ammunition of different calibers and pressures by simply changing the barrel on the break barrel rifle.

Description

[0001] DESCRIPTION

[0002] INTERCHANGEABLE BARREL MECHANISM IN SINGLE SHOT AND BREAK ACTION RIFLE

[0003] Technical Field

[0004] The subject matter of the invention relates to an interchangeable rifled and / or smoothbore barrel mechanism, which enables users of single shot and break action rifles to use ammunition of different calibers and pressures by simply changing the barrel on the break barrel rifle.

[0005] Prior art

[0006] In single shot and break action rifles, which are generally used for hunting and shooting sport, the barrel is opened (broken) from the receiver by the user by separating / rotating the joint from the axis, allowing a new cartridge to be inserted into the rifle. General principle of use of a break action rifle:

[0007] Barrel Opening (break): the user opens the barrel of the rifle by separating it from the receiver. This usually takes place around the joint or axis at the bottom of the barrel.

[0008] Cartridge Loading: When the barrel is opened, the user places a new cartridge into the rifle.

[0009] Barrel Closure: After the cartridge is inserted, the user closes the barrel back towards the receiver. This step activates the firing mechanism and makes the rifle ready for firing.

[0010] Trigger Pull and Firing: When the trigger is pulled, the firing mechanism is activated. This mechanism usually includes a trigger mechanism and releases the firing pin when the trigger is pulled. The firing pin fires the cartridge.

[0011] Ignition and Cartridge Explosion: The firing pin lights the cartridge and activates the igniter inside the cartridge. This starts an ignition process that causes the cartridge to explode and eject from the barrel. The user can then open the barrel again to remove the empty cartridge and insert a new cartridge.

[0012] There are 3 factors that affect the pressure in single shot break barrel rifles. The first of these is the size of the ammunition. The size of the ammunition, which is technically defined as the caliber, decreases as the ammunition size increases in smoothbore shotguns.

[0013] Another factor affecting ammunition pressure is the weight of the ammunition. As the weight of the ammunition increases, the ammunition pressure increases.

[0014] The last factor affecting the ammunition pressure is the velocity of the ammunition. The higher the velocity of the ammunition, the higher the ammunition pressure.

[0015] The size of the ammunition (cartridge) in the single shot break barrel rifle depends on the loading location and hte inner diameter of the barrel. Depending on the size of the ammunition used, the loading location and the inner diameter of the barrel changes.

[0016] In addition, as the size, weight and velocity of the ammunition increases, the strength of the single shot break barrel rifle must be increased in order to absorb the recoil force after firing.

[0017] Single shot break barrel rifles are therefore designed to fire a single size and pressure of ammunition.

[0018] In rifle barrels, the grooves are used to rotate the ammunition around its axis, allowing it to be fired at much longer ranges. Due to the long range, even a very small deviation in the muzzle velocity of the ammunition makes it impossible for the shot to hit the target. Therefore, rifles with rifled bore and rifles with smooth bore have different strength and accuracy requirements. And it makes it difficult to integrate a rifled bore into a rifle with a smooth bore.

[0019] Due to the reasons above mentioned, single shot and break action rifles are generally fixed barrel rifles that are produced for a specific size, weight and velocity of ammunition and with a forcus on the barrel length / type. Aim of the Invention

[0020] The main purpose of the invention is to allow users of single shot break barrel rifles to use ammunition of different sizes by manually modifying the single shot break barrel rifle without using any equipment.

[0021] Another aim of the invention is to allow users to modify the single shot break barrel rifle by only interfering with the barrel and to use different sized ammunition with the inventive interchangeable barrel mechanism.

[0022] Another aim of the invention is to prevent the single shot and break action rifle from being affected by changing forces (recoil, firing, etc) during the use of the different sized ammunition with the mechanism subject matter of the invention.

[0023] Another purpose of the invention is to provide precision and durability to the single shot and break action rifle equipped with the mechanism subject matter of this invention, allowing the attachment of a rifled bore is desired.

[0024] Another aim of the invention is to prevent users from purchasing a large number of different calibers of break action rifles according to the needs of different sized ammunition with the mechanism of the invention.

[0025] Yet another aim of this invention is to enable users to change the barrel themselves is a safe and easy way without the use of any auxiliary tools or equipment.

[0026] Detailed Description of the Invention

[0027] Figures of the interchangeable barrel mechanism suitable for the purposes of the subject matter of the invention are as follows;

[0028] Figure - 1 Single shot and break action rifle

[0029] Figure - 2 Perspective view of the receiver

[0030] Figure - 3 Cross-sectional view of the receiver

[0031] Figure - 4 Cross-sectional view of thin-walled barrel

[0032] Figure - 5 Cross-sectional view of thick-walled barrel

[0033] Figure - 6 View of trigger group and lock assembly

[0034] Figure - 7 Perspective view of the lock The items in the figure abovee are numbered as follow and will be used throughout the rest of the description:

[0035] 1. Break Action Rifle

[0036] 2. Receiver

[0037] 3. Ammunition Chamber

[0038] 4. Barrel

[0039] 5. Barrel wall

[0040] 6. Barrel Inner Diameter

[0041] 7. Barrel Exit muzzle / muzzle brake

[0042] 8. Lock

[0043] 9. Lock Tip

[0044] 10. Barrel Bearing Housing

[0045] 11. Barrel Outer Diameter

[0046] 12. Lock Housing

[0047] 13. Firing Pin

[0048] 14. Wall Thickness

[0049] The interchangeable barrel(4) mechanism, which is the subject matter of this invention, mainly consists of the receiver(2), the ammunition chamber(3) and the barrel(4).

[0050] In the single shot and break action rifle(l) which is the subjet matter of this invention, the ammunition is loaded into ammunition chamber(3) located at the entrance of the barrel(4) by opening / breaking it before firing. The ammunition chamber(3) is created with due caution of the ammunitions size and caliber. The caliber of ammunition used in smooth bore barrels is inversly proportional to their size, while in rifled barrels it is directly proportional. In the rest of the description, in order to avoid misunderstanding, the caliber of the ammunition will not be referred to as the caliber of the ammunition, but as the size of the ammunition, which defines the diameter of the ammunition. As the ammunition size increases, the barrel wall (5) becomes thinner and the ammunition chamber(3) and the barrel inner diameter(6) increases. Barrels with different barrel inner diameter (6) and barrel wall (5) are produced to accommodate different sized ammunition. For illustrative purposes, the barrel inner diameter(6) shown in Figure 4 is larger than the barrel inner diameter(6) shown in the Figure 5, so that it can be used with ammunition of a larger size than the barrel(4) shown in Figure 5.

[0051] The production of barrels(4) with different barrrel inner diameters(6) is not sufficient to enabling the firing of different sized ammunition in single shot and break action rifles. Whenever the barrel(4) is changed, the center of the ammunition chamber(3), and therefore center of the ammunition, must be aligned with the firing pin(13) located in the receiver(2) for the firing to take place. In order to solve this problem a barrel bearing housing(lO) is formed on the receiver(2) in accordance with the barrel outer diameter(ll) so that the center of the ammunition chamber(3) is always the same when the barrel(4) is closed. Barrels(4) with different inner diameters(6) are designed in such a way that their outer diameters(ll) and the diameter of the barrel bearing housing(lO) are equal. Therefore, regardless of the barrel inner diameter(6), each barrel(4) closed on top of a single shot and break action rifle(l) regardless of its inner diameter(6) is bedded in the same way in the barrel bearing housing(lO) formed on the reciver(2), and the ammunition chamber(3) remains aligned with the central firing pin(13). The barrel(4) thus snug fit into the barrel bearing housing(lO).

[0052] Another technical impediment to the development of an interchangeable barrel mechanism capable of firing ammunition of different sizes and pressures in single shot and break action rifles is the damping of recoil force. Firing ammunition of different sizes and pressures produces recoil forces of different magnitudes, which distorts the accuracy of the rifle. Especially when a rifled barrel(4)is preferred, even a 0,01 degreee shift of the ammunition at the exit of the barrel(4) casuses much greater shifts at long ranges. The biggest technical problem caused by the high magnitude of recoil force in single shot and break action rifles is the inability to ensure the stability of the barrel(4) after it is closed and the loosening between the barrel(4) and the receiver(2) over time. In order to solve this problem, the receiver(2) was first designed as a single piece. In order to increase the strength of the barrel bearing housing(lO) formed on the receiver(2), it is designed to cover at least 1 / 3 of the barrel(4) when the barrel(4) is closed, leaving a wall thickness(14) on the surrounding parts. In this way, deformations that may occur on the receiver(2) after firing are prevented. In order to prevent deformations on the receiver(2), the receiver is preferably designed as a single piece and metal.

[0053] In addition, lock tips(9) are formed on the lock(8) which is moved by any lock lever. (Figure- 7) When the barrel(4) is closed, the aforementioned lock tips(9) fit into the lock housing(12) formed on the barrel(4). Lock housing(s)(12) are located under the barrel. They can be along the length or in more than one shape, preferably on both sides of the bottom of the barrel. When the barrel(4) is closed depending on the lock housing(12), lock tip(s)(9) are formed on the barrel(4) corresponding to the lock housing(s)(12). This prevents the barrel(4) from moving up and down (vertically) when the lock tip(9) engages the lock housing(12). This allows the recoil force to be absorbed by the receiver after the shot. Thanks to the above-mentioned receiver(2) with increased strength, shooting accuracy is ensured.

Claims

CLAIMS1. An interchangeable rifled and / or smoothbore barrel mechanism that allows firing with ammunition of different calibers and pressures in a single shot and break action rifle, characterizing in that;- at least two rifled and / or smoothbore barrels(4) with different barrel inner diameters(6), different barrel walls(5) and equal barrel outer diameters(ll), allowing ammunition of different sizes to be inserted,- the receiver(2) in which said barrels(4) are fitted, containing a firing pin(13) bore at the center of said barrel(4), and having wall thicknesses(14) formed to absorb recoil forces, and a barrel bearing housing(lO) partially enclosing said barrels(4).

2. An interchangeable rifled and / or smooth barrel mechanism in accordance with Claim 1 characterizing in that;- at least two lock housing(12) one on each side of the bottom of said barrels(4),- at least one lock(8) bearing on the receiver which is moved by any lever and which contains at least two lock tips(9) that fit into the said lock housings(12) when the said barrels(4) are closed to prevent the vertical movement of the barrel after the shot.

3. An interchangeable rifled and / or smooth barrel mechanism in accordance with Claim 1 characterizing in that; the said barrel(4) is fitted to the said barrel bearing slot(10) as a snug fit.

4. An interchangeable rifled and / or smooth barrel mechanism in accordance with Claim 1 characterizing in that; said barrel outer diameter(ll) being equal to the said barrel inner diameter(6).

5. An interchangeable rifled and / or smooth barrel mechanism in accordance with Claim 1 characterizing in that; the said receiver(2) is one-piece and metal.

Images