ADJUSTABLE FOREND MECHANISM IN RIFLES

Abstract

The invention relates to a forend (1) which can be used in all types of rifles and is adjustable according to the comfort of the user. The subject of the invention particularly relates to an improved design realized for the forend mechanism which can be adapted to the rifles such as bullpup, air rifles and firearms, can be adapted to any hand structure with its ergonomic structure.

Claims

1. An adjustable forend mechanism comprising: at least one forend lock, wherein one end of the forend lock is exposed outside of a casing and the other end has a cylindrical structure; a point located on the casing; at least one lock nail which is formed on a bottom surface of the forend lock; at least one lock spring which can be engaged with the cylindrical structure of the forend lock; at least one lock wedge which is located behind the at least one lock spring and is fixed on the casing; and at least one adjustable forend which has at least one lock gear on its inner surface.

2. The adjustable forend mechanism of claim 1, wherein the adjustable forend is pivotally engaged with the casing at the point.

3. The adjustable forend mechanism of claim 1, wherein the forend lock is engaged with the casing at the point.

4. The adjustable forend mechanism of claim 1, wherein the adjustable forend is engaged with the forend lock at the point.

5. The adjustable forend mechanism of claim 1, wherein the lock gear has at least two threads.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0017] The inventive adjustable forend mechanism shall be evaluated according to the following figures in order to better understand the improvements made for reaching the abovementioned aims.

[0018] In these figures;

[0019] FIG. 1 is the general view of a rifle having the inventive adjustable forend mechanism structure.

[0020] FIG. 2 is the internal mechanism view of the inventive adjustable forend mechanism.

[0021] FIG. 3 is the sectional view of the inventive adjustable forend mechanism in a completely closed position.

[0022] FIG. 4 is the sectional view of the inventive adjustable forend mechanism in a completely open position.

[0023] Numbers are put on the figures in order to make the inventive adjustable forend mechanism to be understood better. Accordingly; [0024] 1. Adjustable forend [0025] 2. Forend lock [0026] 3. Forend pin [0027] 4. Lock spring [0028] 5. Lock wedge [0029] 6. Lock wedge pin [0030] 7. Lock nail [0031] 8. Lock gear [0032] 9. Casing [0033] 10. Thread

[0034] The general view of the inventive adjustable forend mechanism in an example rifle is given in FIG. 1. The adjustable forend mechanism which can be applied to all rifles such as firearms, air rifles and bullpups consists of the following elements; adjustable forend (1), forend lock (2), forend pin (3), lock spring (4), lock wedge (5), lock wedge pin (6), lock nail (7), lock gear (8), casing (9).

[0035] The adjustable forend (1) is fitted on the outer part of the casing (9). The forend lock (2), lock spring (4) and the lock wedge (5) are placed in the internal section of the casing (9). The casing (9), the adjustable forend (1) and the forend lock (2) are engaged with each other by means of a forend pin (3) from one point. The forend lock (2) is fixed into the casing (9) by means of the forend pin (3) such that one portion of the same is outside the casing (9); the adjustable forend (1) can be able to make angular movement about the point where the forend pin (3) is engaged on the casing (9).

[0036] While the forend pin (3) is passed from one end of the forend lock (2), the lock spring (4) is passed on the other end which has a cylindrical structure. At the end of the forend lock (2) to which lock spring (4) is fitted, a lock wedge (5) is positioned. The lock wedge pin (6) is passed through the lock wedge (5) and the lock wedge (5) is enabled to be fixed in the casing (9). (FIG. 2)

[0037] The lock gear (8) is formed on the inner surface of the adjustable forend (1). The lock nail (7) which is formed at the bottom portion of the forend lock (2) is seated between two threads (10) of the lock gear (8) and thus the adjustable forend mechanism is locked. If the lock nail (7) is inserted between the threads (10) located at the lowest portion of the lock gear (8), the adjustable forend mechanism is brought to the closed condition as can be seen in FIG. 3. If the lock nail (7) is inserted between the threads (10) located at the top portion of the lock gear (8), the adjustable forend mechanism is brought to the open condition as can be seen in FIG. 4. The position of the lock nail (7) and thus the position of the forend mechanism can change depending on the number of threads (10) on the lock gear (8) and the user can adjust the same according to his/her own comfort.

[0038] If it is required to describe the operation principle of the adjustable forend mechanism respectively; first of all, the user presses on the forend lock (2), of which one portion is outside the casing (9), with any finger while the user is holding the adjustable forend (1). As a result of this pressure applied, the forend lock (2) moves towards the butt of the rifle. The lock spring (4) which is fitted on the cylindrical structure on the rear portion of the forend lock (2) with this movement of the forend lock (2) rests on the lock wedge (5). In other words, the movement of the forend lock (2) in the butt direction terminates in the lock wedge (5). Thus, the lock nail (7) formed on the bottom section of the forend lock (2) moves in the same amount with the forend lock (2), is released between two threads (10) located on the lock gear (8). Therefore, the user can be able to adjust the adjustable forend (1) according to his/her hand ergonomics by means of moving the same in an upward or downward direction. When the adjustable forend (1) comes to the position required by the user, the user removes his/her finger from the forend lock (2) on which he/she presses, provides the forend lock (2) and thus the lock nail (7) to move towards the barrel section. The lock nail (7) which begins to move towards the barrel section, sits between two threads (10) corresponding on the lock gear (8) in the position required by the user. Therefore, the location of the adjustable forend (1) can be adjusted according to the hand ergonomics of the user and comfort of use.