CZ303456B6 - Method of mounting, dismounting cheek pad onto and from firearm but strap, firearm per se, and cheek pad for such firearm - Google Patents

Abstract

The invented method of mounting, dismounting cheek pad onto and from a firearm but strap comprises the following steps: making a cheek pad (1) such that the cheek pad comprises a cheek pad (1) body (15) comprising two side parts (17, 18) with an open cavity (7) arranged between them and intended for placing therein a back (16) of the firearm but strap (2), whereby at least one of the side parts (17, 18) of the cheek pad (1) is provided with at least one projection (9) and at least one of the side parts (17, 18) of the cheek pad (1) is provided with at least one positioning groove (12); further making a firearm but strap (2) such that it comprises at least one recess (10) for placing therein the projection (9) and at least one rib-like projection (11) for inserting it into said positioning groove (12); insertion of the cheek pad (1) through the open cavity (7) onto the back of the but strap (2) such that said at least one projection (9), intended for placing into the corresponding recess (10), moves in the proximity of said recess (10); and completion of insertion of the cheek pad (1) onto the firearm but strap (2) such that the back (16) is pressed deeper into the open cavity (7) and simultaneously said at least one projection (9) fits into the recess (10) and said at least one rib-like projection (11) fits into said positioning groove (12).

Description

Method of Assembling and Dismantling the Facepiece on the Shoulder Arm of the Firearm, Firearm and Facepiece for Firearm

Technical field

The invention relates to a method of mounting and dismounting a cheekpiece on a shoulder support of a firearm, a firearm and a cheek for a firearm.

BACKGROUND OF THE INVENTION

Shoulder rest cheeks, resp. butt, improve gun grip when aiming. Aiming is more comfortable and safer in terms of ergonomics. This is particularly evident in increasing the likelihood of target intervention15.

Existing shoulder rest cheeks, resp. stock, both fixed and folding, are mounted on supporting elements (opera or stock) in most cases by sliding on an auxiliary dovetail or groove. Another option is fastening by means of a mechanism with an adjusting screw and a possible height adjustment of the cheekpiece. Alternatively, a combination of both solutions. However, the solutions do not allow their axial (length) adjustment.

In both cases, however, the common feature of the above solutions is the fixing dovetail, groove, or anchoring and fixing screw. These elements, in the case of not using the cheekpiece (the ergonomic advantage of using the cheekpiece when aiming does not exclude the possibility of using an opera or stock just without the cheekpiece), in the form of "sharp" grooves or protrusions, can ergonomically affect the shooter. shooter.

It is an object of the present invention to provide a faceplate solution and a method for mounting and dismounting it on a shoulder support, which can preferably be performed manually without the need for tools during assembly and disassembly, and no fastening elements such as anchoring and fastening screws to secure the mounted faceplate in place.

It is a further object of the present invention to provide such a cheekpiece which can be used for right-hand or left-hand shooting and which, after removal (or non-assembly) of the cheek, can be safely fired from a weapon without injury to the shooter (due to "sharp" edges or other protrusions as for example when using dovetails or screws) using the support or stock alone.

Another object is to propose a cheekpiece solution so that the cheekpiece and firearm can be mounted on the firearm in several different positions differing in the distance of the cheekpiece from the longitudinal end of the support.

When used in this description, including the claims of a "backrest" or "shoulder restraint", it is understood that the term also includes "stock".

SUMMARY OF THE INVENTION

OBJECTS OF THE INVENTION The invention proposed method of mounting and dismounting the cheekpiece on the firearm shoulder support comprises the steps of:

a) forming a cheekpiece comprising a cheekpiece comprising two side portions between which an open cavity is arranged to accommodate the shoulder of the firearm shoulder support, wherein at least one of the side cheeks is provided with at least one projection and at least one side cheek is provided at least one positioning groove, further

b) providing a firearm shoulder support such that it comprises at least one recess for accommodating the projection and at least one rib-like projection for placement in a positioning groove;

c) sliding the cheekpiece through the open cavity on the back of the shoulder support so that said at least one projection intended to be placed in the respective recess is disposed adjacent the recess; and

d) completing the insertion of the cheekpiece on the shoulder support so that the back is pushed deeper into the cavity while the at least one projection engages in the recess and the at least one rib projection engages in the positioning groove, without the need to subsequently use any fastening means, the cheekpiece is mounted on the shoulder support, in which the cheekpiece is fastened firmly to the shoulder support sufficiently for firing a firearm.

Advantageously, the insertion of the facepiece according to step c) and the completion of the insertion of the facepiece according to step d) can be carried out manually without using any assembly tools.

The cheekpiece in step c) can be slid onto the back of the shoulder support with respect to the longitudinal direction of the firearm by radial movement, axial movement or even movement in another direction lying between axial or radial direction, or this can be realized by partial successive movements of cheeks in different directions.

Advantageously, the shoulder support may be provided with a plurality of recesses than the number of protrusions, and by selecting the recesses into which the projections are inserted, the position of the cheekpiece on the shoulder support can be changed in the longitudinal direction of the firearm.

Advantageously, the aforementioned method step a) may comprise providing a relief on at least one side portion of the cheek body which, upon placing the cheek on the shoulder support, allows the entire shoulder support to be lowered to the firearm holster without colliding with the firearm controls.

Advantageously, after carrying out the above steps a) to d), the cheekpiece can be removed manually from the shoulder support without the use of any tools.

The object of the invention also fulfills the proposed cheekpiece for mounting on a firearm shoulder support, wherein the cheekpiece comprises a cheekpiece body comprising two side portions between which a cavity is provided to accommodate the back of the support, at least one of the cheek side portions is provided with at least one protrusion the shoulder support and at least one of the side faces of the cheekpiece is provided with at least one positioning groove for receiving the shoulder support rib projection, wherein the cheekpiece is adapted to be supported on the shoulder support by sliding the cheekpiece open with the cavity the at least one projection engages in the recess and the at least one rib projection engages in a positioning groove, after which the cheekpiece is supported on the abutment without the use of any subsequent fastening means, the cheekpiece is fastened firmly to the abutment for firing a firearm.

The cheekpiece is preferably configured to be manually mounted on the shoulder support without the use of any mounting tools.

Preferably, the cheekpiece comprises a smaller number of protrusions than the number of recesses, wherein by selecting the recesses into which the projections are inserted, the position of the cheekpiece on the back of the shoulder support can be changed in the longitudinal direction of the firearm.

- 2 GB 303456 B6

Preferably, the shape and position of the cavity, the protrusions and the positioning grooves are configured relative to the shape and position of the corresponding portions of the shoulder support against which the cheekpiece is to be positioned so that the cheekpiece is manually removable from the shoulder support without using any tools.

Advantageously, the cheekpiece is configured such that upon its shoulder support, the ends of the cheek protrusions are biased against the longitudinal projection provided with the shoulder support, thereby increasing the rigidity of the cheek and support assembly.

Preferably, the at least one side portion of the cheekpiece may be provided with a relief allowing, after the cheekpiece has been placed on the shoulder support, to lower the entire shoulder support to the firearm housing without colliding with the firearm controls.

Preferably, the side portions are provided with shape-identical reliefs positioned symmetrically with respect to the longitudinal axis of the jaw to allow the entire shoulder support to be folded down to the firearm casing without colliding with the firearm controls after placing the cheek on the shoulder support in the right or left position. .

Said at least one projection and said at least one positioning groove of the cheekpiece preferably have an approximately rectangular shape in planar projection with one axis of the rectangle of approximately wheels 20 to the longitudinal direction of the cheekpiece.

Preferably, the cheekpiece may be symmetrical in shape with respect to its longitudinal axis.

The cheekpiece may preferably be manufactured as a single integral plastic injection molding.

The cheekpiece is preferably provided with rubber coating at least in a portion that comes into contact with the shooter's face.

The cheekpiece is preferably provided in different ergonomic dimensions for a given embodiment of the shoulder support to better accommodate the shooter.

The present invention also provides a firearm according to the invention comprising a shoulder support adapted for detachably receiving a cheekpiece and having at least one recess for receiving a projection formed on the cheekpiece and at least one rib-like projection for insertion into the cheek positioning groove, the shoulder supports are configured with respect to the shape and position of the corresponding cheek portions against which the shoulder supports are to be mounted when using the cheek support so that when the cheek support is placed on the shoulder support (i.e. after inserting said cheek protrusion into the shoulder support recess) positioning grooves), without using any subsequent fastening means, the cheekpiece was attached to the shoulder support sufficiently firmly for firing a firearm.

The shape and position of the shoulder rest portions are relative to the shape and position of the corresponding cheek portions against which the shoulder support portions are to be mounted when using the cheek support, preferably configured to be manually mounted on the shoulder support without using any tools.

The shape and position of the firearm shoulder support portions relative to the shape and position of the corresponding cheek portions against which the shoulder support portions are to be mounted when using the cheek support are preferably configured such that the cheekpiece is manually removable from the shoulder support without using any tools.

The invention also provides a kit comprising a firearm according to the invention and a cheekpiece according to the invention.

The cheekpiece is preferably ergonomically shaped and is preferably formed by a plastic injection molding. Allows attachment to the shoulder support at the required distance. Symmetrical mounting of the right-hand or left-hand cheek can be used.

The invention allows the use of a shoulder support without a cheekpiece without the risk of mechanical injury to the shooter by the exposed shoulder support.

The invention also allows for a technically simple replacement of the cheekpiece for higher or lower, assuming the use of a personal weapon, to regulate its height and thereby adapt to the ergonomic needs of the shooter without the need for technically more complex solutions to the adjustable cheekpiece.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be described with reference to the drawings, in which:

FIG. 1 is an axonometric view of a foldable shoulder support with a cheekpiece according to the invention in the basic longitudinal position and rotated to the left for right-hand shooting,

FIG. 2 is an axonometric view of the foldable shoulder support with the cheekpiece of the invention in the basic longitudinal position and turned to the right for left-hand shooting, and FIG.

-giant. 3, 4 and 5 are axonometric views further illustrating an exemplary embodiment of a cheekpiece according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

Figures 1 and 2 show a cheekpiece I attached to the shoulder support 2 in one possible position of the placement of the cheekpiece I along the shoulder support 2 (as will be explained below), in Fig. 1 in the right-hand position; left-handed. The arm support 2 is preferably adjustable in length, operated by a latch 3 of the arm support 2 and locked in position by its pin 4 into the recesses 5 of the base 6 of the arm support 2.

The cheekpiece 1 has a shaped cavity 7 which approximately corresponds in shape to the outer shape of the back 16 and the shape of the side portions 8 of the shoulder support 2,

The cheek 1, supported on the shoulder support 2, is locked in position by its projections 9 engaging recesses 10 formed on the side portions 8 of the shoulder support 2. The axial displacement of the cheekpiece is prevented by the rib projections 11 of the shoulder support 2 so that they positioning grooves 12 of cheekpiece L

The rigidity of the facepiece assembly 1 with the shoulder support 2 can be increased by biasing between the protrusions 9 of the facepiece 1 and the longitudinal projection 13 of the shoulder support 2.

A particular advantage is the possibility of selecting a different longitudinal position of the cheekpiece L Different positions along the length dimension (axis) of the shoulder support 2 in which the cheek support I can be placed are given by the recess spacing 10, the ribs 11 of the shoulder support 2 and the protrusions 9 of the cheek I. such a possibility is that the shoulder support 2 on its side part 8 is provided with more recesses 10 than the projections 9 on the corresponding side part 17 or 18 of the cheekpiece I. Then, by selecting the recesses 10 into which the projections 9 are inserted, cheek 1 in length direction on shoulder support 2.

On the facepiece 1, a shaped, double-sided, mutually mirror-rotated strain relief 14 is preferably provided, after it has been slid onto the shoulder support 2 in the right-hand or left-hand position of tilting

The entire shoulder support 2 to the firearm holster without colliding with the firearm controls.

The present invention also relates to a firearm comprising a shoulder support 2, which is adapted for removably deploying the cheekpiece 1 of the invention. Giant. 1 to 5 show an exemplary embodiment of a firearm or its shoulder support 2, which is provided with a plurality of recesses 10 for receiving protrusions 9 formed on the cheek 1 and a plurality of rib-like projections 11 for insertion into the positioning grooves 12 of the cheek.

Importantly, the shape and position of the shoulder rest portions 2 are configured with respect to the shape and position of the corresponding cheek portions 1 against which the shoulder rest portions 2 are positioned such that the cheek portion 1 is slidable, preferably manually and without tools on the shoulder support 2, after which the cheek support 2 has been pushed onto the shoulder support 2 without using any subsequent fastening means, the cheekpiece 1 is fastened to the shoulder support 2 sufficiently firmly for firing a firearm.

Preferably, said portions are also configured such that the cheekpiece 2 can be removed manually from the shoulder support 2 without using any tools.

The invention also relates to a kit comprising a firearm and a cheekpiece according to the invention, a preferred embodiment of which has been described above.

The assembly method, which is also an object of the invention, comprises the step of, preferably by hand without the use of any tools, sliding the cheek 1 through an open cavity 7 onto the back of the firearm shoulder support 2 so that the cheek protrusions 9 are near the respective recesses 10. into which they are to be introduced. This insertion can be effected by guiding the cheekpiece in the axial direction (i.e. in the longitudinal direction of the support 2) or even in a direction approximately perpendicular to the longitudinal dimension of the support 2. However, the insertion can also be realized by guiding the cheek 1 also in oblique direction relative to the longitudinal direction 2 or several partial movements of the cheekpiece 1 in different directions. Once the cheek 1 is slid onto the shoulder 8 of the firearm 2 so that the projections 9 of the cheek 1 are close to the respective recesses 10, the fit of the cheek 1 on the shoulder support 2 is completed by pushing, preferably by hand and without using any This push-in completes the sliding of the cheek 1 on the shoulder 8 of the shoulder support 2, which is pushed deeper into the cavity 7 and at the same time the projections 9 engage in the recesses 10 and the ribs 11 engage in the positioning groove. 12. By performing these steps, the cheekpiece I is attached to the shoulder support 2, which is sufficiently strong for firing a firearm.

The removal of the cheekpiece 1 from the shoulder support 2 is carried out in the reverse manner, the cheekpiece 1 being ready for firing from the firearm, being removed from the shoulder support 2, preferably by hand without using any tools. The manual removal of the cheekpiece is carried out by gripping the cheekpiece 1 by hand and pulling it slightly away from the back 8 of the shoulder support 2 in order to extend the projections 9 from the recesses 10 and the rib projections 11 from the positioning grooves 12. with the application of tension on the cheekpiece, the side portion 17, 18 of the cheek body 1 is pulled slightly away from the side portion of the shoulder support 2. This can be done with the fingers of the hand when the cheekpiece is removed manually. This is made possible by the elasticity of the side portions 17, 18 of the facepiece body 1, which is preferably made of plastic.

It is to be understood that the invention is not limited to the preferred embodiment described and illustrated, but various modifications are possible within the scope of the invention defined by the claims.

For example, the recesses 10, the projections 9, the ribs 11, the positioning grooves 12 are in the preferred embodiment shown in planar projection of approximately rectangular shape with one of the axes approximately perpendicular to the longitudinal direction of the shoulder or cheek. However, other shapes of these elements are possible within the scope of the invention and also the position may be different (for example, they may be arranged obliquely to the longitudinal axis of the shoulder support). Furthermore, the number of these elements may be different from that of the preferred embodiment illustrated, with the extreme case being an embodiment in which there is only one recess, a projection, a rib projection and a positioning groove.

Furthermore, for a number of reasons, it is advantageous if the cheekpiece has the same number of protrusions and 5 the same number of positioning grooves on its side portions, but this does not have to be the function and fulfillment of the objectives of the invention. the side parts of the cheekpiece.

Also, the relief that the cheekpiece may contain and which serves to allow the entire shoulder support to be lowered to the firearm sleeve without colliding with the firearm controls, when the cheek is placed on the shoulder support, without colliding with the firearm controls, may be provided on both side portions. the cheekpiece or on one side only.

Claims (20)

PATENT CLAIMS 20 1. Method of assembly and disassembly of cheek (1) on shoulder support (1) (2) firearms, comprising the steps of: a) forming a cheekpiece (1) comprising a cheekpiece (15) body (15) comprising two side portions (17, 18) between which an open cavity (7) is arranged to accommodate the shoulder (16) of the firearm shoulder (2) wherein at least one of the side portions (17, 18) of the cheekpiece (1) is provided with at least one 25, and at least one of the side portions (17, 18) of the cheekpiece (1) is provided with at least one positioning groove (12); b) forming an arm support (2) of the firearm such that it comprises at least one recess (10) for accommodating the projection (9) and at least one rib projection (11) for placement in the positioning groove (12), C) sliding the cheekpiece (1) through the open cavity (7) on the back of the shoulder support (2) so that said at least one projection (9), intended to be placed in the respective recess (10), moves near the recess (10) , and d) completing the insertion of the cheekpiece (1) on the shoulder support (2) so that the back (16) is pushed deeper into the cavity (7) and at least one protrusion (9) fits into the recess (10) and said at least 35 ribs the projection (11) has engaged with the positioning groove (12), and by performing these steps, without requiring any subsequent fastening means, the cheek (1) is secured to the shoulder support (2) that is sufficiently strong for firing a firearm . Method according to claim 1, characterized in that inserting the cheekpiece (1) according to the step c) and completion of the insertion of the cheekpiece (1) according to step d) is performed manually without using any assembly tools. Method according to claim 1 or 2, characterized in that the shoulder support (2) is provided with a plurality of recesses (10) than the number of projections (9), and by selecting recesses (10) into which the projections (9) are inserted. ), the position of the cheekpiece (1) on the back (16) of the shoulder support (2) can be changed in the longitudinal direction of the firearm. Method according to any one of the preceding claims, characterized in that: 50 step a) comprises providing a relief on at least one side portion (17, 18) of the cheek (1) body (1) which, after placing the cheek (1) on the shoulder support (2), allows the entire shoulder support (2) to be folded without colliding with the firearm controls. -6GB 303456 B6 Method according to any one of the preceding claims, characterized in that after carrying out steps a) to d), the cheek (1) can be removed manually from the shoulder support (2) without using any tools. A cheekpiece (1) for mounting on a firearm shoulder support (2), wherein the cheekpiece (1) comprises a cheekpiece (1) comprising two side portions (17, 18) between which a cavity (7) is arranged. location of the back (16) of the abutment (2), characterized in that at least one of the side portions (17, 18) of the cheek (1) is provided with at least one projection (9) for insertion into the recesses (10) in the shoulder and the abutment (2) ) and at least one of the side portions (17, 18) of the cheekpiece (1) is provided with at least one positioning groove (12) for receiving a ribbed projection (11) of the shoulder support (2), the cheekpiece (1) being configured to be supported on the shoulder support (2) sliding the cheek (1) through the open cavity (7) onto the back (16) of the support (2) so that the back (16) of the support (2) is inserted into the cavity (7) of the cheek (1) and said at least one projection ( 9) fits into the recess (10) and the at least one rib (11) 15 engages in a positioning groove (12), after which the cheek (1) is placed on the abutment (2) without using any subsequent fastening means, the cheek (1) attached to the abutment (2) sufficiently firmly for firing a firearm. A cheekpiece (1) according to claim 6, characterized in that it is configured for manual 20 mounting on the shoulder support (2) without using any mounting tools. A cheekpiece (1) according to claim 6 or 7, characterized in that it comprises a smaller number of projections (9) than the number of recesses (10), wherein the selection of the recesses (10) into which the projections (9) are inserted can be changed. in the longitudinal direction of the firearm the position of the cheekpiece (1) on the back (16) 25 shoulder supports (2). Cheekpiece (1) according to any one of claims 6 to 8, characterized in that the shape and position of the cavity (7), the projections (9) and the positioning grooves (12) are opposite to the shape and position of the corresponding parts of the shoulder support (2). by which the facepiece (2) is to be stored, in use, configured to: The cheekpiece (2) was removed manually from the shoulder support (2) without using any tools. A cheekpiece (1) according to any one of claims 6 to 9, characterized in that the ends of the cheeks (1) of the cheekpiece (1) are supported against the longitudinal projection (13) after the cheek (1) has been placed on the shoulder support (2). providing a shoulder support (2) for increasing the rigidity of the cheek assembly (1) 35 and supports (2). A cheekpiece (1) according to any one of claims 6 to 10, characterized in that at least one side part (17, 18) of the cheekpiece (15) body is provided with a relief (14) allowing after the cheekpiece (1) has been placed on the cheek (1). the shoulder support (2) tilting the entire shoulder support (2) to the firearm holster, 40 without colliding with the firearm controls. The cheekpiece (1) according to claim 11, characterized in that the side portions (17, 18) are provided with identical shape reliefs (14), arranged symmetrically with respect to the longitudinal axis of the cheekpiece (1), enabling the cheeks (1) to be shoulder rest (2) in right - hand position or 45 the left-hander tilts the entire shoulder support (2) to the firearm holster without colliding with the firearm controls. Facepiece (1) according to any one of claims 6 to 12, characterized in that said at least one projection (9) and said at least one positioning groove (12) of the facepiece (1) have a 50 is an approximately rectangular shape with a single rectangle axis approximately perpendicular to the longitudinal direction of the cheekpiece (1). Facepiece (1) according to any one of claims 6 to 13, characterized in that it is symmetrical in shape with respect to its longitudinal axis. A cheekpiece (1) according to any one of claims 6 to 14, characterized in that it is a single plastic injection molding. A cheekpiece (1) according to any one of claims 6 to 15, characterized in that it is provided with rubber coating at least in the part which comes into contact with the shooter's face. io A cheekpiece (1) according to any one of claims 6 to 16, characterized in that, for a given embodiment, the shoulder support (2) is designed in different ergonomic dimensions for better fit to the shooter. A firearm comprising a shoulder support (2) adapted to detachably place a cheek (1) on the shoulder support (2), characterized in that the shoulder support (2) is provided with at least one recess (10) for receiving a projection (9) formed on the cheekpiece (1) and at least one rib-like projection (11) for insertion into the cheek positioning groove (12), wherein the shape and position of portions of the shoulder support (2) are opposite to the shape and position of corresponding portions of the cheek (1) in which these parts of the shoulder support (2) are to be supported when using the cheekpiece (1), configured to 20 after placing the cheek (2) on the shoulder support (2) by inserting the projection (9) into the recess (10) and the rib-like projection (11) into the positioning groove (12), the cheek (1) has been attached to the shoulder support without (2) Firmly Fired Firmly. A firearm according to claim 18, characterized in that the cheekpiece (1) can be mounted on the shoulder support (2) manually without using any tools. Firearm according to claim 18 or 19, characterized in that the cheekpiece (1) is detachable from the shoulder arm after being placed on the shoulder support (2) without using any tools. 30 supports (2). A kit comprising a firearm according to any one of claims 18 to 20 and a cheekpiece (1) according to any one of claims 6 to 17.