Abstract
The invention is focused on simplifying the buttstock design and improving its reliability. The technical result is achieved by the construction of the adjustable swivel cheek piece buttstock, that includes a body with a spring-loaded link in the base, which interacts with the trigger button, located at the front of the housing, which interacts with a swivel platform with a cheek piece mounted on it, a platform locking device, and a torsion spring, one end of which is fixed to the axle located in the stock body, and the second end is fixed to the swivel platform. The number of parts in the proposed model is significantly reduced, the energy of the spring is transmitted not from the driving pinion to the driven one, as in the prototype, but directly from the axle to the swivel platform. Thus, the reliability of the mechanism is increased.
Claims
1. An adjustable cheek piece buttstock, comprising a body with a trigger button in a front and a spring-loaded link in a base, a swivel platform with a cheek mounted on the swivel platform and a platform locking device, and a spring; wherein there is an axle, which is connected to an one end of the spring, and a second end of the spring is fixed to the swivel platform.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The essence of the invention is explained by the following figures:
[0011] FIG. 1 shows a general view of the small arms buttstock with an adjustable cheek piece, cheek raised.
[0012] FIG. 2 shows a general view of small arms buttstock with adjustable cheek piece, cheek lowered.
[0013] FIG. 3 shows an exploded view of the buttstock.
[0014] FIG. 4 shows the position of the cheek piece during the transition for firing through the sector sights.
DESCRIPTION OF THE PREFERRED EMBODIMENT
[0015] Detailed description in static.
[0016] The buttstock with an adjustable cheek piece contains a body 1 (FIG. 3) with an axle 2 installed in it, a swivel platform 3, a butt plate 4, and an adjustable swivel cheek piece 5. The stock body 1 has a window 6 and a cutout 7 in the front part of the stock. In the rear part of the axle 2 a hexagon 9 is provided for one end of the spring 8, and for the other end—a recess 10 in the swivel platform 3.
[0017] In the upper part of the swivel platform 3 there are four cylinders 11 to accommodate the shock-absorbing springs 12, the cylinders 11 act as guides. Between the cylinders there is a device 13 in the form of a guiding rod in which there are cutouts 14 and 15 for the bolt head 16 and nut 17, which is used for mounting the cheek 5 to the platform 3. The cheek 5 is held by the bolt head 16 and edge of the cutout 18 (FIG. 1). In the front part of the platform 3 there is a cutout 19, and in the rear part there is a recess for the retainer 20 and 21 (FIG. 3). To control the platform rotation, the trigger mechanism is installed in the body 1, which includes the release button 22, connected to the rod by the detent 23 and the pullback spring 24. The butt plate 4 is secured to the body 1 by a bolt 25 and to the axle by a bolt 26. A recess 27 is provided in butt plate 4 for spring 28 and retainer ball 29.
[0018] Description of the buttstock in operation.
[0019] Operating the removable adjustable buttstock swivel cheek piece is carried out as follows. Move the cheek to the position shown in FIG. 1 through the window 6 using the thumb, if it is planned to use the gun with the primary sight. Then, adjust the height of the cheek 5 by pressing on its upper part, slightly compressing the springs 12, and loosen the bolt 16 with an Allen wrench until the nut 17 comes out of the cutout. Then, using a hex key 9, as it is inserted into the head of the bolt 16, move the bolt 16 up or down, while pressing or releasing the cheek 5. After the cheek 5 has reached the desired position, the bolt is tightened with a wrench. The cheek will be in the desired position. The shooter's line of sight will be aligned with the line of primary sight. In the event of shooting conditions change, following with the necessity to change the cheek 5 position, one must, without taking the hand off the fire control handle, press the release button 22 with the right hand thumb, the locking rod will disconnect from the cutout 19 of the rotary platform 3, the released energy of the spring 8, as it is fixed at one end to the axle and held by the hex nut 9, and the other is fixed in the depression 10 (FIG. 3) of the swivel platform 3, will be transferred to the swivel platform 3. The cheek 5 will change its position by rotating to the desired angle and will be held in the desired position by the retainer ball 29 and spring 28 in the recess 20 in the swivel platform 3 (FIG. 3). The shooter's head will change its position and the line of the sector sight will align with the shooter's line of sight. To move the cheek to the lower position, turn the swivel platform 3 to the position shown on FIG. 2 by applying a minimal force, the retainer ball 29 will move into the recess 21.
