Butt stock

Abstract

Disclosed is a gun heel (1) characterised in that it comprises at least two separate bearing parts (4, 5) designed for bearing on the body of the user, at least one of the bearing parts being movable relative to the other for adjusting the position of said part.

Description

[0001] The invention relates to a rifle butt. The invention also relates to a rifle stock and a rifle comprising such a rifle butt.

[0002] Traditional weapons for precision shooting, for example of the rifle type, comprise a wooden rifle stock, forming a supporting structure from which a barrel is secured, and the firing trigger mechanism. Such a rifle stock comprises several gripping and support zones in contact with the shooter. In particular, a rifle stock comprises a heel towards its rear end, intended to come into contact substantially at the level of the shooter's shoulder and chest. It further comprises a cheek in the upper support part, intended to come into contact against the shooter's cheek. It also comprises at least one zone, called a handle, for its grip by the shooter (with the left hand for a right-handed person).

[0003] Shooting performance and accuracy depend largely on the support of the rifle stock. First, its overall volume, weight, and material, traditionally wood, help define its behavior during shooting, in particular by providing good support and damping properties for the significant forces generated during shooting. On the other hand, it is known that accuracy also depends heavily on the proper adaptation of the rifle stock's supports to the shooter's morphology.

[0004] When a shooter wants to optimize the accuracy of their rifle, they can have a custom-made rifle stock made. Such a custom-made rifle stock is naturally expensive and has the disadvantage of not being able to be modified once designed. Therefore, if the shooter's body shape changes over time, the rifle stock becomes less suitable and the shooter loses accuracy.

[0005] To overcome these drawbacks, solutions, such as those described in documents DE29605120U1, FR2791767A1 and EP1525429B1, propose rifle stocks that are made up of several parts, the respective positions of which are adjustable. These solutions thus make it possible to adapt the rifle stock to the shooter's morphology. However, in practice, it appears that these adjustments are insufficient because they only allow adjustment limited to a few degrees of freedom, not allowing fine adjustment of the rifle stock.

[0006] To overcome these drawbacks, other solutions offer rifle stocks comprising much more complex articulated parts whose relative movement offers greater adjustment possibilities. These other solutions, however, remove significant volumes from a traditional wooden rifle stock and replace them with complex mechanisms. The resulting rifle stock then generally has a modified form, with a truncated volume compared to a traditional stock and in a material other than wood, generally metal, over a significant part of its volume. Thus, the improvement in the adjustment of the parts of the rifle stock comes at the expense of the volume and the optimal shape of the rifle stock, which modifies the behavior of the weapon when fired.

[0007] A general object of the invention is to provide a rifle stock solution that improves upon the solutions of the prior art, does not have all or part of the disadvantages of the prior art. In particular, the invention seeks to improve the behavior of a rifle stock, its best optimal adaptation to the shooter's morphology and the manufacturing process of which remains simple and at a lower cost.

[0008] To this end, the invention is based on a rifle butt according to claim 1 which comprises at least two separate support parts intended to come into contact with the user's body during a shot, at least one of the two support parts being movable relative to the other.

[0009] The rifle heel comprises, among other things, at least one base on which said movable support part is mounted.

[0010] The invention also relates to a rifle body according to claim 11, characterized in that it comprises a rifle heel as described previously.

[0011] The rifle butt may comprise a base movable relative to the rifle body. The base may be movable relative to the rifle body in translation along a vertical axis and / or in rotation about a longitudinal and / or transverse axis.

[0012] The invention also relates to a rifle according to claim 13 comprising a rifle butt as previously described or comprising a rifle body as previously described.

[0013] The accompanying drawings represent, by way of example, an embodiment of a rifle butt according to the invention. [ Fig. 1 ] There figure 1 represents a schematic view of a device for adjusting a rifle heel from a transverse axis according to an embodiment of the invention. Fig. 2 ] There figure 2 represents an embodiment of the rifle heel comprising an adjustment device and two support parts. Fig. 3 ] There figure 3 represents a schematic of the rifle heel according to the embodiment of the invention along a longitudinal axis, in which the support parts are shown in transparency. Fig. 4 ] There figure 4 represents the rifle heel illustrated on the figure 3 , in which one of the two support parts has been moved in a rotation along the longitudinal axis. Fig. 5 ] There figure 5 is a representation of an embodiment of a base of a rifle butt, in which the base comprises two concave-shaped portions. Fig. 6 ] There figure 6 is a representation of two connectors, each comprising a convex-shaped portion designed to cooperate with a concave-shaped portion of the base illustrated in the figure 5 . [ Fig. 7 ] There figure 7 is a representation of a base and a base according to an embodiment of the rifle heel according to the present invention. The connection between the base and the base allows at least one degree of freedom in translation along a vertical axis. Fig. 8 ] There figure 8 is a schematic view of a rifle according to an embodiment of the invention, the stock of which is shown in transparency to represent the rifle heel comprising a base designed to be fixed to the body of the rifle. Fig. 9 ] There figure 9 represents a top view of the two support parts according to an embodiment of the invention in which the two support parts comprise several aligned bores for adjusting the position of the support part along the vertical axis. Fig. 10 ] There figure 10 is a schematic view of the first bearing portion of the rifle heel according to an embodiment of the invention in which said first bearing portion comprises four bores aligned in a vertical direction. Fig. 11 ] There figure 11 is a schematic view of the second bearing portion of the rifle heel according to an embodiment of the invention in which said second bearing portion comprises four bores aligned in a vertical direction.

[0014] For the purpose of clarifying this description, the following terms are defined as follows.

[0015] "Longitudinal axis" means an axis parallel to the longitudinal axis of the rifle on which the rifle butt is mounted or intended to be mounted or the longitudinal axis of the rifle barrel on which the butt is mounted or intended to be mounted.

[0016] By "vertical axis" is meant an axis perpendicular to a longitudinal axis and forming with said longitudinal axis a plane parallel to a median plane of the rifle. Such a median plane is generally a plane of symmetry or substantially of symmetry of a rifle, apart from some portions offset due to the adjustments of the bearing surfaces, which will be described below. When the heel of the rifle is resting on the shooter, the vertical axis is substantially oriented from bottom to top.

[0017] By "transverse axis" is meant the axis perpendicular to the vertical axis and the longitudinal axis. It is also perpendicular to the median plane, in particular the plane of symmetry of the aforementioned rifle.

[0018] In one embodiment, the longitudinal, vertical, and transverse axes may be alternatively defined relative to a base of the heel. The longitudinal axis is substantially perpendicular to the plane of the base, the transverse axis is oriented along the width of the base in the plane of the base, and the vertical axis is oriented along the length of the base in the plane of the base.

[0019] An example of a rifle butt 1 and a rifle according to one embodiment of the invention is described below with reference to figures 1 à 11 .

[0020] The rifle butt 1 comprises at least two support parts 4, 5 intended to come to bear on the user's body. These two support parts extend in the vertical direction, the upper support part 4 is intended to come to bear near the shooter's shoulder, and the lower support part 5 extends below, in particular to near the shooter's chest. The rifle butt 1 comprises a device 10 for adjusting the position and / or orientation of the two support parts 4, 5. These two support parts 4, 5 are distinct from one another. They are movable relative to one another, at least partially independently. The adjustment device 10 advantageously makes it possible to adjust the position and / or the orientation of the two support parts relative to the rifle body and / or the position and / or the orientation of a first support part 4 relative to a second support part 5.

[0021] Each support part comprises at least one bore 41 for its attachment to the adjustment device 10, in particular a bore in a direction along a longitudinal axis. The bores 41 are designed to allow the passage of a screw through the support part which will cooperate with the adjustment device 10 to allow the connection between the support zone and the adjustment device, as illustrated in the figure 9 .

[0022] Preferably, the adjustment device 10 comprises a base 2. The base 2 is designed to be fixed to the end of a rifle stock.

[0023] The two support parts 4, 5 are mounted on the same base.

[0024] In one embodiment, one of the two support parts or both support parts 4, 5 are mounted to move on said base 2.

[0025] Preferably, the two support parts are mounted movably on the same base. In particular, at least one of the two support parts is mounted indirectly on the base 2 via a connector 3.

[0026] In one embodiment, the adjustment device 10 allows the mobility of the first support part 4 movable in a translation along a transverse axis T. For this, the adjustment device 10 rests on a connector 3 which then comprises at least one through groove 31 extending along a transverse axis T. A screw inserted into the bore 41 of the support part 4 passes through the through groove and can then be tightened or not in a nut positioned behind said groove. When the screw is not tightened, it is free to move along said groove 31, giving the first support part 4 freedom of movement along a transverse axis T relative to the base 2, and indirectly relative to the second support part 5 and more generally relative to the stock of a rifle and to the rifle itself.

[0027] According to the embodiment, the adjustment device 10 rests on a second groove 31 arranged on the connector 3 extending transversely parallel to the first groove and designed to receive a screw passing through a second bore 41 of the first support part 4.

[0028] In one embodiment, the adjustment device 10 allows the mobility of the first movable support part 4 according to a rotation around a longitudinal axis L. This mobility thus represents a second degree of freedom of the first support part 4.

[0029] This rotational mobility can be achieved by pivoting the first movable part around the screw present in the bore 41 of the first part, in an embodiment which would be simplified to a single screw and a single bore 41.

[0030] According to the embodiment, as illustrated in the figures 3 And 4, the two parallel opening grooves allow such rotation of the first support part 4 around a longitudinal axis by means of a clearance provided around the screws positioned in each groove, which allows the vertical non-alignment of the two screws. figure 4 illustrates such a configuration, the result of which is a rotation of the first support part 4 around a longitudinal axis.

[0031] The grooves 31 of a connector 3 of the adjustment device 10 cooperating with a support part thus allow both the translation of the first support part 4 along a transverse axis T and at the same time a rotation of the first support part 4 around a longitudinal axis.

[0032] In one embodiment, the adjustment device 10 further allows the mobility of the first support part 4 according to a rotation around a transverse axis T. Such mobility thus represents a third degree of freedom of the first support, and an adjustment which is similar to a pitch adjustment. According to the embodiment, this rotation is possible by the mobile connection between the connector 3 and the base 2.

[0033] The base 2 comprises a portion 23 having a curved hollow shape, particularly visible on the figure 5 . Said curved shape is preferably a concave shape, that is to say a shape rounded towards the inside of the base. It is similar to a half cylinder with a transverse axis.

[0034] Connector 3, particularly visible on the figure 6 , comprises a first portion 32 intended to cooperate with a support part 4. This first portion 32 comprises the two grooves 31 described previously. On its face opposite the support part 4, the connector 3 comprises a second portion 33 intended to cooperate with the hollow portion 23 of the base 2. Thus, said second portion 33 has a shape complementary to the shape of the portion 23 of the base 2, in particular a convex shape, that is to say rounded towards the outside, complementary to the concave shape of the base 2. The positioning of the second portion 33 in the corresponding portion 23 of the base allows their two substantially cylindrical surfaces to come into contact, and to be able to occupy a tight and fixed configuration and a loose and adjustable configuration.In this adjustment configuration, the connector is movable relative to the base by sliding the two aforementioned contact surfaces 23, 33, therefore according to a rotation around a transverse axis. A transverse screw, not shown, is able to pass through the base 2 to cooperate with the connector 3 at its second portion 33, making it possible to fix its position and achieve said tight and fixed configuration.

[0035] By the mechanism described above, the first support part 4, fixed to the connector 3, is therefore adjustable relative to the base 2 according to a rotation around a transverse axis T.

[0036] As a note, the second portion 33 of the connector 3 comprises two threaded bores on its face opposite its convex part described above, forming a means of fixing the first support part 4. Indeed, as shown in the figure 9 , these two threaded bores are positioned respectively opposite each groove 31, so as to receive the screws passing through the first bearing surface 4 and the two grooves 31, and allow their tightening, thus forming nuts for these screws. By this means, the first bearing surface 4 can occupy a tight configuration, in which it is not movable relative to the connector 3, and an adjustment configuration, by loosening said screws, thus allowing the adjustment of the first bearing surface according to the first two degrees of freedom described previously.

[0037] According to the embodiment of the invention, the second bearing surface 5 is mounted on the same base by means of another similar connector 3, according to an adjustment device 10 which allows the same degrees of freedom and adjustment as the first bearing surface 4.

[0038] In an embodiment not shown, the adjustment device 10 may comprise means allowing the mobility of a support part relative to the base according to a translation along a vertical axis V, in particular a sliding connection.

[0039] In one embodiment, the adjustment device 10 allows the mobility of the base 2 relative to the rifle body 100 according to a translation along a vertical axis V.

[0040] The base 2 comprises an opening groove 22 on one of its faces, in particular on a face perpendicular to a longitudinal axis L, in particular on the face opposite the face oriented towards the support parts 4, 5. The groove 22 extends along a vertical axis V. In an example illustrated on the figure 5 , the vertical groove V extends between two portions 23 having a curved shape of the base 2.

[0041] As illustrated on the figure 7 , the adjustment device 10 may comprise a base 6 designed to be fixed to a rifle body XX. The base 6 comprises at its distal end, a projection 61 designed to be inserted inside the vertical groove 22 of the base 2. The vertical groove 22 of the base 2 is longer than the projection 61 of the base 6 so that the projection 61 is free in translation along the vertical groove 22 of the base 2.

[0042] Said projection 61 comprises an opening groove 62 passing through the projection 61 along a transverse axis T and extending along the projection 61 along a vertical axis V.

[0043] The base 2 comprises a bore 24 designed for the passage of a screw 64 through said bore 64 and through the groove 62 of the projection 61. This screw 64 advantageously makes it possible to block the mobility of the base 2 relative to the base in a direction along a longitudinal axis L. The base 2 is then movable relative to the base 6 and / or relative to the rifle body 100 in the direction of the groove 62 of the projection 61, preferably the vertical direction V. As a variant or addition, the base could be movable differently relative to the stock of the rifle, for example according to a rotation around a longitudinal and / or transverse axis.

[0044] Preferably, the base 6 comprises a locking means 63 comprising a thread arranged behind the projection 61 and arranged to cooperate with a thread of the screw 64. The screwing of said screw 64 then makes it possible to tighten the locking means 63 of the base against the base 6 and to block the mobility of the base 2 relative to the base 6 by friction.

[0045] Each support portion is designed to come into contact with an area of ​​the body of a shooter when the latter shoots or aims with the rifle comprising the rifle butt. Each support portion 4, 5 preferably comprises a flat surface intended to come into contact with the user's body. Said surface may comprise a compressible material for the comfort of the user. Each support portion may comprise any anatomical surface, is removable and may be replaced by a support surface of different property, for example of different shape and / or of different material. Furthermore, the invention has been illustrated with two support portions 4, 5. Alternatively, it could comprise three or more distinct portions, at least one being movable, or even at least two being movable, or even all the portions being movable. Furthermore, in the embodiment described, the two support surfaces are movable, independently adjustable, relative to a common base.Alternatively, only one support part could be movable relative to the second, not necessarily via a base. More generally, other devices could be envisaged to implement the mobility of a support part of the heel. In addition, this mobility can be achieved according to other choices of degrees of freedom than those described previously. Thus, the invention relates to any heel comprising at least one part movable relative to another part. Throughout the text, mobility is understood in the sense of a possible position adjustment, it being understood that the two or more adjustable (movable) parts necessarily occupy a fixed configuration for shooting practice. This mobility to allow adjustment is possible according to at least one degree of freedom, or even two, three, four or more degrees of freedom.

[0046] Advantageously, the heel comprises two parts which move independently of each other, one upper part intended to provide support at the shooter's shoulder and the other lower part at the level of his chest. Advantageously again, these two moving parts form the entire surface of the heel (i.e. the functional surface for support on the shooter's body).

[0047] In one embodiment illustrated in the figures 10 et 11, at least one of the two support parts 4, 5 comprises at least three vertically aligned bores 41, preferably at least four aligned bores 41. This alignment makes it possible to adjust the position of the support part along a vertical axis by changing the bore or bores which will cooperate with the adjustment device 10. In one embodiment, each bore 41 is separated from an adjacent aligned bore by a distance of between 0.5 cm and 1.5 cm, preferably approximately 1 cm. This vertical mobility thus corresponds to a discontinuous translation in the vertical direction. As a variant, the alignment of the bores may be provided in a direction other than the vertical direction, to provide an adjustment axis in another direction. As a further variant, it may comprise several bores positioned differently, not necessarily aligned.

[0048] In one embodiment, the first support part 4 comprises a width (along a transverse axis T) of between 4 and 6 cm and a length (along a vertical axis V) of between 6 and 7 cm. In one embodiment, the second support part 5 comprises a width (along a transverse axis T) of between 4 and 6 cm and a length (along a vertical axis V) of between 6 and 8 cm, preferably approximately 7 cm.

[0049] In one embodiment, the support parts 4, 5 comprise a rigid plate, preferably an aluminum plate, the thickness of which (along a longitudinal axis L) is between 3 and 5 mm.

[0050] The invention also relates to a rifle 200 comprising such a rifle body 100 or such a rifle heel 1. It also relates more generally to any weapon comprising a heel as described previously.

Claims

1. A gun heel (1), comprising at least two distinct bearing parts (4, 5) intended to rest against the user's body, at least one of the bearing parts being movable relative to the other for the adjustment of its position, the at least two bearing parts (4, 5) being mounted to move independently on the same base (2), characterized in that a first bearing part (4) of the at least two bearing parts (4, 5) is indirectly mounted on said base (2) through a first connector (3), said first connector (3) comprising at least one through groove (31) extending along a transverse axis, a screw inserted into a bore (41) of the first bearing part (4) crossing said through groove (31), which can be tightened into a nut positioned behind said through groove (31), the first bearing part (4) being free to move along said through groove (31), granting the first bearing part (4) freedom of movement along a transverse axis T relative to the base (2) when the screw is not tightened.

2. A gun heel (1) according to the previous claim, characterized in that a second bearing part (5) of the at least two bearing parts (4, 5) is mounted on said same base (2) through a similar second connector (3), according to an adjustment device that allows the same degrees of freedom and adjustment as for the first bearing part (4).

3. A gun heel (1) according to claim 1 or 2, characterized in that said first connector (3) comprises a second groove (31) extending transversely parallel to said at least one through groove (31), a screw passing through a second bore (41) of the first bearing part (4) to cooperate with said second groove (31), and in that the movable first bearing part (4) is secured by two screws each passing through a groove (31), which can be tightened to secure the movable first bearing part (4), or loosened to allow mobility of the movable first bearing part (4) in a transverse translation and optionally in a rotation around a longitudinal axis L.

4. A gun heel (1) according to one of claims 1 to 3, characterized in that the first connector (3) of the first bearing surface (4) is adjustable in a substantially rotational adjustment movement about a transverse axis relative to the base (2).

5. A gun heel (1) according to one of the preceding claims, characterized in that the at least one movable bearing part (4, 5) is movable in two, three or four degrees of freedom.

6. A gun heel (1) according to the preceding claim, characterized in that the at least one movable bearing part (4, 5) is movable relative to the base (2) in translation along a transverse axis (T), and optionally in rotation about a transverse axis (T) and / or in rotation about a longitudinal axis (L).

7. A gun heel (1) according to one of the preceding claims, characterized in that the at least one movable bearing part (4, 5) is also movable relative to the base (2) in translation along a vertical axis (V).

8. A gun butt (1) according to one of the preceding claims, characterized in that the at least two separate bearing parts (4, 5) form the entire bearing surface of the heel.

9. A gun heel (1) according to one of the preceding claims, characterized in that the at least two bearing parts (4, 5) comprise a movable upper bearing part intended to bear against a shooter's shoulder and a movable lower bearing part intended to bear against a shooter's chest.

10. A gun heel (1) according to one of the preceding claims, characterized in that the at least one movable bearing part (4, 5) comprises several bores (41) aligned in a direction allowing its positioning in this alignment direction to be adjusted.

11. Gun's body (100), characterized in that it comprises a gun heel (1) according to one of the preceding claims.

12. Gun's body (100) according to the preceding claim, characterized in that the gun heel (1) comprises a base (2) which is movable relative to the gun's body in translation along a vertical axis and / or in rotation about a longitudinal and / or transverse axis.

13. Gun comprising a gun heel (1) according to one of claims 1 to 10 or comprising a Gun's body (100) according to one of claims 11 or 12.

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