EA040634B1 - GUN STOCK - Google Patents

Description

The present invention relates to gun stocks, in particular for long firearms such as rifles and carbines.

The stock is a part of the body of a firearm that is elongated so that it can rest against the shoulder to absorb recoil energy.

The stock can be shaped in a variety of ways to be particularly ergonomic as well as suitable for the individual shooter's physical size.

A variety of systems are known for mounting the stock, which are configured to adjust various parameters in order to adapt it to the specific requirements of the shooter.

Control systems of the known type can be complex both from the point of view of the manufacturer and from the point of view of the user.

US 2,631,398, US 179,075, and US 243,553 disclose adjustable stocks.

The purpose of the present invention is to provide a new stock, in particular for long firearms, which provides various adjustment options and is simple in construction and low in cost.

Within this purpose, it is an object of the present invention to provide a stock which has an integrated mechanism for adjusting the bow and/or inclination of the stock.

Another object of the present invention is to provide a stock that has a significantly lower manufacturing cost than systems used to date and provides comparable results.

A further object of the present invention is to provide a stock which has an integrated system for adjusting the distance between stock and trigger.

A further object of the present invention is to provide a stock which has an integrated system for adjusting the height of the comb.

A further object of the present invention is to provide a stock which has an integrated system for adjusting the length of the trigger, i.e. the distance between the neck and the descent.

A further object of the present invention is to provide a stock which has an integrated system for adjusting the shape of the neck.

It is a further object of the present invention to provide a structure which, by virtue of its certain structural characteristics, is capable of providing maximum guarantees of reliability and safety in use.

Achieving this goal and solving these problems and other problems that become apparent later in this document provides a gun stock containing a hollow body that contains at least one cavity; moreover, in the specified cavity is formed by a nest, made with the possibility of receiving the liner; the specified liner contains a through hole for the passage of the rod; wherein said rod has a first end and a second end; said first end is attached to the body of said gun; said free end is threaded and fits into a lock nut; the specified lodge additionally contains a mounting plate located between the specified lock nut and the specified insert; the specified mounting plate has a calibrated hole; said free end of said rod passes through said calibrated hole; said attachment plate may take different positions with respect to said insert in order to change the inclination of said stock with respect to the line of sight of the gun.

Other characteristics and advantages become more apparent from the description of preferred, but not exclusive, embodiments of the present invention, illustrated by way of non-limiting example in the accompanying figures, where:

in fig. 1 is a longitudinal sectional perspective view of a stock made from a polymeric material according to an embodiment of the present invention;

in fig. 2 is a perspective view of the stock illustrated in FIG. 1;

in fig. 3-5 are perspective views of the locking insert and stock front plate illustrated in the preceding figure, shown in various stock flex adjustment positions;

in fig. 6-8 are front views of the locking insert and front plate, which are shown in various stock tilt adjustment positions;

in fig. 9 is a longitudinal sectional perspective view of a stock made from a resin material according to an embodiment, illustrated without stock and stock support;

in fig. 10 shows an image similar to the previous one, where the liner and plate are removed from the stock;

in fig. 11 is a longitudinal sectional perspective view of a stock made from wood according to an embodiment of the present invention;

in fig. 12 is a perspective view of the stock illustrated in FIG. eleven;

in fig. 13-15 are perspective views of the locking insert and front plate of the stock illustrated in FIG. 14, which is given in various regulations;

in fig. 16 is a perspective view of the stock and stock support;

in fig. 17 is a perspective view of a stock assembly with a pair of spacers;

in fig. 18 is a perspective view of a stock assembly with two pairs of spacers;

in fig. 19 is a perspective view of a pair of struts, including a fixed strut and a movable strut;

in fig. 20 is a side view of a stock fitted with a standard stock;

in fig. 21 shows a side view of the lodge, equipped with a high butt;

in fig. 22 is a side view of a stock fitted with a standard stock with a pair of struts;

in fig. 23 is a side view of a stock fitted with a high stock with a pair of struts;

in fig. 24 is a side view of a stock equipped with a standard stock with two pairs of spacers;

in fig. 25 is a side view of a stock fitted with a high stock with two pairs of struts;

in fig. 26-28 are side views of a stock made from a polymeric material and provided with combs of various sizes according to an embodiment;

in fig. 29, 30 are side views of a stock made of wood and provided with protrusions of various sizes according to an embodiment;

in fig. 31 is a side view of the stock;

in fig. 32 shows a top view of the lodge;

in fig. 33, 34 are perspective views of the stock attachment to the frame, which illustrate various combinations of trigger length adjustment;

in fig. 35 shows a side view of the stock without a neck;

in fig. 36 is a sectional view taken along sectional plane XXXVI-XXXVI in FIG. 35;

in fig. 37 shows a bottom view of the lodge without a neck;

in fig. 38 shows a front view of the stock without a neck;

in fig. 39 shows a top view of the stock without a neck;

in fig. 40 shows a side view of the stock with the neck in the collection;

in fig. 41 is a sectional view taken along the XLI-XLI sectional plane of FIG. 40;

in fig. 42 shows the bottom view of the lodge with the neck in the collection;

in fig. 43 is a front view of the stock with neck assembly;

in fig. 44 shows a top view of the stock with the neck in the collection;

in fig. 45 is a perspective view of the neck;

in fig. 46 is a side view of the neck;

in fig. 47 is a sectional view taken along the sectional plane XLVII-XLVII in FIG. 46;

in fig. 48 is a front view of the neck.

As shown in these figures, the stock according to the present invention, which is designated as a whole by reference number 1, has a hollow body 2, which has at least one cavity 3.

The socket 4 is formed in the cavity 3 and is configured to receive the insert 5.

The insert 5 has an opening for the passage of the rod 6, which has a first end 7 and a second free end 9.

The first end 7 is threaded to the frame 8 of the firearm.

The free end 9 is threaded and fits into the lock nut 10.

The stock 1 is attached to the frame 8 of the firearm by means of a lock nut 10, and the tightening torque allows the stock to be fixed in an intermediate position between the insert 5 and the front plate 13.

According to the present invention, the fastening plate 11 is inserted between the nut 10 and the bushing 5 and has a calibrated hole 12 for passing through the free end 9 of the rod 6.

According to two embodiments, a mounting plate is provided, including a mounting plate 11 in which the calibrated hole 12 occupies a central position, and a mounting plate 111 in which the calibrated hole 112 occupies an axially offset position.

Plate 111 with axially offset opening 112 can be seen in FIG. 7 and 8.

The through hole of the bushing 5 is wide enough to allow displacement of the free end 9 within the hole.

Mounting plate 11, 111 has lateral teeth 14 that are included in a pair of toothed stops 15, 115, which are formed on the insert 5, 105, which allows the mounting plate 11, 111 to occupy positions at different heights with respect to the insert 5, 105.

The construction described above makes it possible to adjust the bending of the stock 1, 101 in relation to the firearm, i.e. the vertical inclination of the stock with respect to the line of sight, as represented schematically by the double arrow 16 in FIG. 31.

According to the present invention, the toothed profiles of the insert 5, 105 and the fixing plate 11,

111 allow the bed 1, 101 to take on different bends by placing the mounting plate in different height positions with respect to the liner.

Preferably, the mounting plate 11 is symmetrical to avoid mismatches.

Insert 5 may be the same for wooden stocks and polymer stocks, or may be designed for stocks of a certain type.

In FIG. 1-10 show an embodiment of a stock made of polymeric material, which is designated by reference number 1, while in FIG. 11-15 shows an embodiment of a wooden stock, which is designated by reference number 101.

According to the embodiment shown in FIG. 11-15, the insert 105 has a shape corresponding to the shape of the socket 104 of the cavity 103 of the hollow body 102 of the wooden stock 101.

In FIG. 11-15, reference numbers that are identical to the reference numbers used in FIG. 1-10 define similar components.

The front plate 13 located between the stock 1, 101 and the rest of the firearm is preferably compatible with the camber set.

In FIG. 3, 6-8 and 13 show the position of the mounting plate 11, 111, which corresponds to the bend of the stock, close to the maximum bend.

In FIG. 4 and 14 show the position of the fixing plate 11, which corresponds to a medium bend.

In FIG. 5 and 15 represent the position of the mounting plate 11 which corresponds to the minimum bend of the stock.

This type of regulation is discrete and predetermined: the number and pitch of the vertical teeth determine the number of bends and their number.

To simplify the installation of the bend, indicator symbols are provided on the plate 11, 111, which allow you to orient the plate in relation to the indicator 17 engraved on the stops 15, 115 of the insert 5, 105.

According to the embodiments shown in the figures, the letters H, J, K, Y on the plate 11, 111 are indicator symbols that define the respective stock bends.

The system according to the present invention also makes it possible to adjust the tilt or shift of the stock, which is the tilt on the horizontal plane, i.e. inclination of the stock to the left or right in relation to the line of sight.

To change the inclination of the stock, a mounting plate 111 is used in which the calibrated hole 112 is in an axially shifted position, i.e. it is offset horizontally from the center, as can be seen in FIG. 7 and 8.

By means of a plate 11 having a central calibrated hole 12, as seen in FIG. 3-6, 13-15, it turns out that it is possible to change only the bend of the stock, i.e. vertical tilt.

By means of a plate 111 having an axially offset calibrated hole 112, as seen in FIG. 7 and 8, it is possible to change the bending and inclination of the stock, i.e. simultaneous vertical tilt and horizontal tilt.

Thus, by using two mounting plates 11 and 111, it is possible to have three types of inclination, including zero (Fig. 3-6, 13-15), right (Fig. 7) and left (Fig. 8).

The right or left tilt of the stock is obtained by placing the plate 111 in positions that are reverse in the horizontal direction with respect to each other.

The same system of fixation and regulation is proposed for polymer stocks and for wooden stocks.

The basis of the adjustment system is a combination of insert 5, 105 and mounting plate 11, 111, which are pre-assembled with the desired flex and/or slope outside the stock and then placed into it.

Preferably, the front plate 13 located between the stock 1, 101 and the rest of the firearm should be compatible with the set camber.

In FIG. 10 is a schematic representation of the manufacturing step of the liner and attachment plate assembly inside the stock.

The way to increase the number of tilt positions is to adopt the above-described gear system to change the bending to obtain a mounting plate and a corresponding bushing, in which the teeth are arranged horizontally instead of vertically.

Another way to increase the number of tilt positions of the stock is to offer a plurality of plates 111 with a calibrated hole 112, axially shifted and occupying various positions.

The construction described above makes it possible to adjust the inclination of the stock 1, 101 with respect to the firearm, i. e. inclination on the horizontal plane of the stock 1, 101 with respect to the line of sight, as shown schematically by the double arrow 116 in FIG. 32.

The stock according to the present invention is also provided with a system for adjusting the distance between the butt and the trigger, the so-called length of the trigger (LOP).

The system for adjusting the distance between the stock and the trigger is provided with a stock 18, 118 which has a variable thickness and/or a stock support 19 which has a variable thickness.

Preferably, the butt support 19 is a recoil reducing device of the type described in EP 2711660 B1, which has a box-like body 20 into which a shock-absorbing device is inserted, comprising a fixed part and a movable part; the fixed part is integral with the box body, and the movable part can slide in the axial direction inside the box body; butt 18, 118 is integral with the moving part.

According to the present invention, a butt stock having a different thickness is provided. In FIG. 16-18, 20, 22 and 24 shows the stock 18 of reduced thickness; in fig. 21, 23 and 25 shows the stock 118 of increased thickness.

The change in the thickness of the butt support 19 is provided by a pair of struts, including respectively a fixed strut 191 and a movable strut 192.

The fixed brace 191 is integral with the fixed part of the box-shaped support, while the movable brace 192 is integral with the movable part of the support.

The user can choose to use only the stock or use two parts at the same time (stock and spacer).

In FIG. 20 shows the use of a standard stock 18, while FIG. 21 shows the use of an enlarged or high stock 118.

In FIG. 22 shows the use of a standard stock 18 with a pair of spacers 191, 192, while FIG. 23 shows the use of an enlarged or high stock 118 with a pair of spacers 191, 192.

In FIG. 24 shows the application of a standard stock 18 with two pairs of spacers 191, 192, while in FIG. 25 shows the use of an enlarged or high stock 118 with two pairs of spacers 191, 192.

The struts 191, 192 are designed to work in pairs, compatible with the damping recoil system described in EP 2711660 B1: the fixed strut 191 is still integral with the stock of the rifle, while the movable strut 192 can move during firing and provide free sliding of the entire shock-absorbing system in relation to the bed.

In FIG. 16 is an image of a standard buttstock 18, located on a support 19 without the use of spacers; in fig. 17 and 18 show respectively the use of one pair of spacers and two pairs of spacers.

In FIG. 20-25 show some embodiments of strut and stock combinations.

The stock according to the present invention also has a system for changing the height of the ridge.

Preferably, the stock has an interchangeable ridge that has a main body and a ridge that is releasably connected to the body and has a support structure and a cheek support pad resting on an elastic member connected to the structure.

The elastic element is a leaf spring, which is connected to the structure and can be easily replaced.

The ridge is connected to the body of the stock by means of a quick coupling with or without the use of tools.

Advantageously, the comb to be replaced is of the type described in EP 3214400 B1.

The quick-release system makes it easy to replace the comb with another comb that has a different height.

In FIG. 26-30 show some embodiments of a stock with ridges of various heights.

In FIG. 26-28 shows images of stock 1 made of polymeric material and equipped with combs of various heights, which are designated respectively by conditional numbers 21, 121, 221.

In FIG. 29 and 30 show images of a wooden stock 101, equipped with combs of various heights, which are designated respectively by conditional numbers 321 and 421.

The stock according to the present invention also has a system for adjusting the length of the descent, i.e. the distance between the neck 22, 122 and the trigger of the firearm, which is not shown in the figures.

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Claims (7)

The trigger control system has a series of adjustment plates 23 that can be inserted between the head of the hollow body 2, 102 and the front plate 13. The user may choose, based on the size of his hand, the number and/or thickness of the plates 23 to be installed. The stock according to the present invention also has a system for adjusting the shape of the neck. The neck adjusting system allows both the ergonomics of the neck to be modified by changing its dimensions, and its tactile perception by changing the material and/or finish of the neck. According to the present invention, the neck adjusting system has a number of inserts 24 which can be removed and easily replaced. According to the embodiment shown in FIG. 35-48, the removable liner 24 is a shaped body that can be connected to the shaped part 222 of the neck 22. Advantageously, the removable liner has hook-shaped edges 241 which are adapted to connect with corresponding ribs 223 formed at the borders of the shaped portion 222 of the neck 22. The removable liner 24 is made from a variety of materials with a variety of finishes and external dimensions so as to allow the user to change the size and feel of the neck according to tastes and requirements. In practice, it has been found that the present invention achieves its intended purpose and accomplishes its objectives by providing a gun stock that has an integrated mechanism for adjusting the bow and/or tilt of the stock. The control system is an innovative solution that has a significantly lower industrial cost than systems used to date, in order to achieve comparable results. Another advantage of the stock according to the present invention is the presence of integrated systems that allow you to adjust the distance between the butt and the trigger (LOP), i.e. adjust the height of the ledge, adjust the length of the descent, i.e. the distance between the neck and the trigger, as well as adjust the shape of the neck. The materials used, as well as the dimensions, can, of course, be any according to the requirements and the state of the art. The application for this invention claims the priority of Italian patent application No. 102019000007998, filed June 4, 2019, the subject matter of which is incorporated herein by reference. CLAIM 1. Gun stock containing a hollow body that contains at least one cavity; moreover, in the specified cavity is formed by a nest, made with the possibility of receiving the liner; the specified liner contains a through hole for the passage of the rod; wherein said rod has a first end and a second end; said first end is attached to the body of said gun; said free end is threaded and fits into a lock nut; the specified lodge additionally contains a mounting plate located between the specified lock nut and the specified insert; the specified mounting plate has a calibrated hole; said free end of said rod passes through said calibrated hole; said mounting plate may take different positions with respect to said insert in order to change the inclination of said stock with respect to the line of sight of the gun. 2. Stock according to claim 1, in which the specified mounting plate and the specified liner contain devices for fixing the specified mounting plate on the specified liner in various discrete positions. 3. Lodge according to claim 1, in which the specified mounting plate has lateral teeth; moreover, these teeth are included in a pair of toothed stops formed on the specified liner; while the specified mounting plate can occupy positions at different heights with respect to the specified liner. 4. Stock according to claim 1, in which the specified mounting plate has the specified calibrated hole in the center position. 5. Stock according to claim 1, in which the specified mounting plate has the specified calibrated hole in the axially shifted position. 6. Stock according to claim 1, in which the specified mounting plate has indicator symbols that allow you to orient the plate with respect to the indicator engraved on the said stops of the specified insert. 7. Lodge according to claim 1, containing the butt, and the specified gun contains a trigger; said lodge -