FR3097041A1 - Receiving cradle for ammunition and associated extraction process - Google Patents

Abstract

The invention relates to a receiving cradle (10) for receiving an ammunition (11) extracted from a tube (12) extending along a first axis X by an expulsion means (13) comprising: A structure (14) ) comprising a fixing base (15) intended to be fixed to an outlet end (16) of the tube (12); A receiving bag (17) extending substantially along the first axis X fixed to the structure (14), intended to receive the ammunition (11). The invention also relates to a method of extracting ammunition from a tube. Figure for the abstract: Fig. 2

Description

Receiving cradle for ammunition and associated extraction method

The invention lies in the technical field of the extraction of ammunition from a gun barrel, for example (non-limiting) a 120 mm rifled mortar. The invention finds a particularly advantageous application in the case of ammunition stuck in the tube or during a non-fire.

Currently the extraction of ammunition is done using a claw extractor attached to a rope. Such a prior art extractor 5 is shown in Figure 1. The extractor 5 is slid into the barrel tube by a user. The extractor 5 includes a set of claws 6, which are hooked by gravity on the fuze 7 of the ammunition. Fuze here means the front tip of the ammunition. Then, the user extracts the ammunition using the rope attached to a handle 8 of the extractor 5. This process is used by the entire profession but the use of such a system has technical limits. . It does not allow to loosen ammunition stuck at the muzzle of the gun barrel. In addition, the extractor must be adapted to the different types of fuzes used on the ammunition. In addition, it generates risks for the user: when inserting the extractor into the barrel barrel, the user is forced to pass his hand in front of the mouth of the barrel and when removing the ammunition from the barrel barrel. , if the user positions his hands incorrectly, he can unhook the extractor and cause the ammunition to fall to the bottom of the barrel, with a risk of undesired firing of the ammunition.

Document CH 624 480 describes a device and method for extracting ammunition from a barrel by injecting compressed air. This process relies on the pressure regulation of injected compressed air to ensure that the ammunition comes out of the barrel just to be seized. This process requires complex pressure regulation equipment. In addition, it exposes to a fall of the ammunition extracted from the height separating the ground and the muzzle of the barrel. This results in a risk of detonation of the ammunition.

The invention aims to overcome all or part of the problems mentioned above by proposing a reception cradle which makes it possible to receive ammunition extracted by a means of expulsion of the ammunition from the tube, in particular by injection of compressed air, whatever the rocket. The receiving cradle also makes it possible to collect ammunition stuck in the mouth after the expulsion of the tube of the ammunition by any suitable means of expulsion. Such a device is particularly safe because the user never passes all or part of his body in front of the muzzle of the barrel. The risk of dropping the ammunition to the bottom of the tube is also eliminated.

1. Une structure comprenant une embase de fixation destinée à être fixée à une extrémité de sortie du tube ;
2. Un sac de réception s’étendant sensiblement selon le premier axe X fixé à la structure, destiné à réceptionner la munition.

To this end, the subject of the invention is a receiving cradle intended to receive ammunition extracted from a tube extending along a first axis X by an expulsion means comprising:

1. A structure comprising a fixing base intended to be fixed to an outlet end of the tube;
2. A receiving bag extending substantially along the first axis X fixed to the structure, intended to receive the ammunition.

Advantageously, the structure comprises a first arm and a second arm, each being connected at a first end to the fixing base, and the receiving bag is fixed to the two arms and to the fixing base.

Advantageously, the fixing base has a U-shape, an inner portion being intended to be in contact with an outer portion of the outlet end of the tube.

1. un cône d’arrêt positionné à une seconde extrémité des deux bras, configuré pour former une butée à la munition,
2. un dispositif de maintien du cône d’arrêt reliant le cône d’arrêt aux deux bras et à l’embase de fixation.

Advantageously, the receiving bag includes:

1. a stop cone positioned at a second end of the two arms, configured to form a stop for the ammunition,
2. a device for holding the stop cone connecting the stop cone to the two arms and to the fixing base.

1. deux sangles latérales s’étendant depuis le cône d’arrêt de part et d’autre du cône d’arrêt jusqu’à deux points d’accroche, un premier des deux points d’accroche étant positionné sur le premier bras et un second des deux points d’accroche étant positionné sur le second bras,
2. une sangle d’attache s’étendant depuis le cône d’arrêt jusqu’à l’embase de fixation.

Advantageously, the stop cone holding device comprises:

1. two lateral straps extending from the stop cone on either side of the stop cone to two attachment points, a first of the two attachment points being positioned on the first arm and a second on the two attachment points being positioned on the second arm,
2. a tether strap extending from the stop cone to the mounting base.

Advantageously, the fixing base comprises a hooking beak on an outer portion of the fixing base, intended to cooperate with a portion of a collar of the tube so as to allow the rotation of the receiving cradle along a second axis. Y, substantially perpendicular to the first axis X, when placing the receiving cradle on the outlet end of the tube.

1. une poignée configurée pour épouser au moins partiellement la forme de l’extrémité de sortie du tube,
2. un moyen de fixation de la poignée sur l’embase de fixation.

Advantageously, the receiving cradle comprises a locking device capable of passing from an unlocked configuration to a locked configuration in which the fixing base is held in place around the outlet end of the tube, and vice versa, comprising:

1. a handle configured to at least partially match the shape of the outlet end of the tube,
2. a means for fixing the handle to the fixing base.

Advantageously, the means for fixing the handle to the fixing base comprises a ball joint and a flat support.

Advantageously, the arms are telescopic, and each of the two attachment points is configured to slide on the arm on which it is positioned.

1. fixation d’un berceau de réception à une extrémité de sortie du tube, le berceau de réception comprenant :
   1. une structure comprenant une embase de fixation destinée à être fixée à une extrémité de sortie du tube,
   2. un sac de réception s’étendant sensiblement selon le premier axe X fixé à la structure, destiné à réceptionner la munition.
2. activation du moyen d’expulsion;
3. expulsion de la munition ;
4. réception de la munition dans le sac de réception.

The invention also relates to a method for extracting ammunition from a tube extending along a first axis X by an expulsion means comprising the following steps:

1. attachment of a receiving cradle to an outlet end of the tube, the receiving cradle comprising:
   1. a structure comprising a fixing base intended to be fixed to an outlet end of the tube,
   2. a receiving bag extending substantially along the first axis X fixed to the structure, intended to receive the ammunition.
2. activation of the means of expulsion;
3. expulsion of the ammunition;
4. receiving the ammunition in the receiving bag.

1. coopération du bec d’accrochage avec une portion d’un collier du tube,
2. rotation du berceau de réception selon un deuxième axe Y, sensiblement perpendiculaire au premier axe X,
3. verrouillage du dispositif de verrouillage.

The fixing base comprising a hooking beak on an outer portion of the fixing base, the cradle comprising a locking device capable of passing from an unlocked configuration to a locked configuration in which the fixing base is maintained in place around the outlet end of the tube, and vice versa, the step of fixing the receiving cradle to the outlet end of the tube comprises the following steps:

1. cooperation of the hooking spout with a portion of a collar of the tube,
2. rotation of the receiving cradle along a second axis Y, substantially perpendicular to the first axis X,
3. locking of the locking device.

The invention will be better understood and other advantages will appear on reading the detailed description of an embodiment given by way of example, description illustrated by the attached drawing in which:

FIG. 1 schematically represents an extractor known from the prior art;

FIG. 2 schematically represents a receiving cradle placed at the outlet of a tube according to the invention;

FIG. 3 schematically represents a structure of a receiving cradle, in the unfolded and folded configuration according to the invention;

FIG. 4 schematically represents a receiving cradle according to the invention;

FIG. 5 schematically represents a first view of a receiving bag of the receiving cradle according to the invention;

FIG. 6 schematically represents a second view of a receiving bag of the receiving cradle according to the invention;

FIG. 7 schematically represents the placement of the receiving cradle at the outlet end of the tube according to the invention;

FIG. 8 schematically represents the locking of the receiving cradle at the outlet end of the tube according to the invention;

FIG. 9 schematically represents an embodiment of the receiving cradle with telescopic arms according to the invention;

FIG. 10 schematically represents the steps of a method for extracting ammunition from a tube by an expulsion means according to the invention.

In these figures, for the sake of clarity, the scales are not respected from one figure to another. Furthermore, the same elements will bear the same references in the different figures.

Figure 1 schematically represents an extractor known from the prior art and has already been presented in the introduction.

FIG. 2 schematically represents a reception cradle 10 placed at the outlet of a tube according to the invention. The receiving cradle 10 is intended to receive ammunition 11 extracted from a tube 12 extending along a first axis X by an expulsion means 13, the receiving cradle 10 comprising a structure 14 and a receiving bag 17 s extending substantially along the first axis X fixed to the structure 14, intended to receive the ammunition 11. The invention applies to any suitable means of expulsion, for example by injection of compressed air, injection of inert gas or by application of a force on the ammunition from behind. Thereafter, we will assimilate the means of expulsion to the injection of compressed air, without however limiting the invention to this example. Ammunition 11 having a length substantially equal to the length of the receiving cradle is shown. However, the invention applies regardless of the length and diameter of the ammunition provided that the length and diameter of the ammunition are less than those of the receiving cradle 10. The structure 14 can for example be made of aluminum in order to lighten its mass as much as possible.

FIG. 3 schematically represents the structure 14 of the receiving cradle 10 according to the invention, in the unfolded and folded configuration. The structure 14 is in the unfolded configuration on the left of the figure and in the folded configuration on the right of the figure. The structure 14 comprises a fixing base 15 intended to be fixed to an outlet end 16 of the tube 12. The structure 14 advantageously comprises a first arm 21 and a second arm 22, each being connected at a first end 19 to the base fixing 15. The arms 21, 22 are shown substantially parallel to each other and to the first axis X. However, this configuration, although preferred, is not mandatory, and the two arms 21, 22 can extend in two divergent directions or convergent. The reception bag 17 is fixed to the two arms 21, 22 and to the fixing base 15.

FIG. 4 schematically represents a reception cradle 10 according to the invention. The fixing base 15 has a U-shape, an inner portion 23 being intended to be in contact with an outer portion 24 of the outlet end 16 of the tube 12, as can be seen in FIG. reception 17 is fixed to the fixing base 15 at its inner portion 23, that is to say in the central part of the U, and at the level of the upper ends, that is to say at the level of the parts extending from the central part of the U and on either side of the central part of the U.

FIG. 5 schematically represents a first view of a reception bag 17 of the reception cradle 10 according to the invention. The receiving bag 17 comprises a stop cone 25 positioned at a second end 26 of the two arms 21, 22, configured to form an abutment for the ammunition 11, and a holding device 27 of the stop cone 25 connecting the cone stopper 25 to the two arms 21, 22 and to the fixing base 15.

The stop cone 25 constitutes a major element of the receiving cradle 10 according to the invention. Indeed, the arresting cone 25 must be able to resist thermally to the high temperature of the surface of the ammunition 11 and mechanically in the event of a violent impact during an extraction of ammunition 11 not jammed.

The device 27 for holding the stop cone 25 comprises two lateral straps 31, 32 extending from the stop cone 25 on either side of the stop cone 25 as far as two attachment points 33, 34, a first 33 of the two attachment points being positioned on the first arm 21 and a second 34 of the two attachment points being positioned on the second arm 22. The holding device 27 also comprises an attachment strap 35 s extending from the stop cone 25 to the fixing base 15. The assembly formed by the stop cone 25 and the side straps 31, 32 and the fastening strap 35 is sufficient to form the mechanical resistance necessary to stop the ammunition and maintain it. For reasons of ease of handling, the stop cone 25 and the straps are connected by an assembly forming a pocket.

The stop cone 25 is defined by an advantageously open cone. The cone is designed with several strappings 61 of very resistant straps. These strappings 61 are interconnected by other straps 62 which are themselves connected to the reception bag 17, for example by long seams, advantageously over the entire length of the reception bag 17, and in particular up to the interfaces of the structure 14 in order to distribute the force over a maximum length during extraction. The arresting cone 25 is advantageously open so that the pointed and mechanically aggressive end of the fuze of the ammunition 11 does not cause the onset of tearing. The use of several added hoops makes it possible to limit the "rebound" effect of the ammunition 11. Such a stop cone 25, with an end diameter slightly smaller than that of the body of the projectile, makes it possible to overcome an impact: the stopping of the projectile is indeed ensured by the braking due to the neck of the stop cone 25. It can be noted that the stop cone 25 is represented with a circular opening, similar to the external shape of the body of the ammunition 11. The invention applies in a similar way with a non-circular opening, but with an end diameter slightly smaller than that of the body of the projectile in order to retain it in the receiving cradle 10.

The reception bag 17 (consisting of the straps and the pocket) serves, for its part, to recover the projectile once stopped by the arresting cone 25. The depth of the reception bag 17 has the function of misaligning the ammunition 11 with the tube 12 regardless of the rise of the mortar, in order to prevent the ammunition 11 from falling back into the tube 12. In other words, the longitudinal axis of the ammunition, although it can remain substantially parallel to the axis X, is sufficiently offset with respect to the axis X so that the ammunition can no longer fall back into the tube. The receiving bag 17, including pocket and straps, advantageously consists of two layers of fabric: on the outer side of the receiving bag 17, a mechanically resistant layer and on the inner side of the receiving bag 17, a layer resistant to heat (at least 100°C). This can be, for example, layers of flame-retardant synthetic fabric.

The receiving bag 17 is a wearing part and is the only interface with the ammunition. It can be removably connected to the structure 14 in order to allow its removal from the receiving cradle 10 in the event of damage to the receiving bag 17.

FIG. 6 schematically represents a second view of a reception bag 17 of the reception cradle 10 according to the invention. Although it may be formed from several separate parts mechanically connected together, the receiving bag 17 is preferably made in one piece. The attachments of the reception bag 17 on the two arms 21, 22 of the reception cradle 10 can be designed to allow the reception bag 17 to be removed without dismantling the structure 14.

Thus, the extraction of the ammunition 11 is done for example by injection of compressed air 13 at the lower level of the tube 12, advantageously at the level of a pre-existing safety valve of the mortar, by connecting a bottle of compressed air to the safety valve with a hose. The compressed air 13 pushes the ammunition which is then recovered in the receiving cradle 10. During extraction, the ammunition 11 is stopped by the front part of the receiving bag 17, and it falls to the bottom of the receiving bag 17 , as described below. It emerges from this that the user only intervenes in complete safety when the ammunition is completely out of the tube 12 and without the possibility of falling back into it. Moreover, as the fuse of the ammunition is not used as an attachment point, as is the case with the claw extractors of the prior art, the reception cradle according to the invention allows the extraction of ammunition regardless of the rocket used. It makes it possible to extract ammunition in position or stuck at the level of the muzzle or at any level inside the tube.

Figure 7 schematically shows the placement of the receiving cradle 10 at the outlet end 16 of the tube 12 according to the invention. The fixing base 15 comprises a hooking nose 36 on an outer portion 43 of the fixing base 15, intended to cooperate with a portion of a collar 42 of the tube 12 so as to allow the rotation of the receiving cradle 10 along a second axis Y, substantially perpendicular to the first axis X, when placing the receiving cradle 10 on the outlet end 16 of the tube 12. Advantageously, the collar 42 is the collar of the base plate belonging to the mortar, it locks with a simple fastener. Nevertheless, any type of collar can be used insofar as it has a portion on which the hooking spout 36 can rest in order to allow the rotation of the receiving cradle 10 around the second axis Y. The hooking spout 36 facilitates the positioning of the receiving cradle 10 in alignment along the first axis X, at the outlet end 16 of the tube 12.

Once the receiving cradle 10 has been placed in position at the end 16 of the tube 12, it must be locked in this position in order to be held there.

FIG. 8 schematically represents the locking of the receiving cradle 10 at the outlet end 16 of the tube 12 according to the invention. The receiving cradle 10 comprises a locking device 51 capable of passing from an unlocked configuration to a locked configuration in which the fixing base 15 is held in place around the outlet end 16 of the tube 12, and vice versa, comprising a handle 52 configured to at least partially match the shape of the outlet end 16 of the tube 12, and a means 53 for fixing the handle 52 to the fixing base 15. The locking device 51 can thus be locked and unlocked as many times as needed. The handle 52 forms at least a point support with the tube. In an advantageous embodiment, the contact of the handle 52 with the tube 12 is a substantially flat support. In a preferred embodiment, the contact of the handle 52 with the tube 12 is surface, the handle 52 having a curved zone 56 intended to match the shape of the tube 12.

The fixing means 53 can be basic, such as a screw-nut assembly. In a preferred embodiment of the invention, the fixing means 53 of the handle 52 on the fixing base 15 comprises a ball joint 54 and a flat support 55. In other words, the reception cradle 10 is locked by the above the tube 12 using the handle 52 and the fixing means 53. The handle 52 is mounted on a ball joint allowing it to turn and pass a mechanical stop (plane support 55). Due to the ball joint, the handle is rotatable around an axis parallel to the first axis X and around a third axis perpendicular to the axes X and Y at point 54. In its combined rotation around its two axes , the handle 52 passes under the stop 55, for example a screw head forming a flat support at the level of the underside of the head, in response to a slight force applied by the user during the manipulation of the handle 52 (this corresponds to a tilting of the receiving cradle 10 of the order of a few degrees). The handle 52 comprises a shoulder intended to form with the screw head a support forming an abutment. Once past this mechanical stop 55, the receiving cradle 10 is locked by gravity. Specifically, gravity pulls the receiving cradle 10 in the direction of gravity. The underside of the screw head 55 is locked at the upper level of the shoulder of the handle 52. The receiving cradle 10 is then locked in position at the outlet end 16 of the tube 12. In addition, with the surface contact 56 of the handle on the tube 12, there is hyperstaticity of the receiving cradle 10, ensuring perfect maintenance in position of the receiving cradle 10 at the outlet of the tube 12.

FIG. 9 schematically represents another embodiment of the receiving cradle 10 with telescopic arms according to the invention. In this embodiment, the arms 21,22 are telescopic, and each of the two attachment points 33, 34 is configured to slide on the arm 21, 22 on which it is positioned. The receiving bag 17 is configured to fit the telescopic arms of the receiving cradle 10. In other words, the receiving bag 17 can fold. This allows a gain in terms of bulk when transporting the receiving cradle 10.

FIG. 10 schematically represents the steps of a method for extracting ammunition from a tube by an expulsion means according to the invention. The extraction method by means of expulsion 13 of an ammunition 11 from a tube 12 extending along a first axis X comprises a step of fixing 101 of the receiving cradle 10 to an outlet end 16 of the tube 12 , the receiving cradle 10 comprising a structure 14 comprising a fixing base 15 intended to be fixed to an outlet end 16 of the tube 12, and a receiving bag 17 extending substantially along the first axis X fixed to the structure 14 , intended to receive the ammunition 11. The method according to the invention comprises a step 102 of activating the expulsion means. In the example of injection of compressed air, it is a step 102 of injecting compressed air 13 into the tube 12. The method also comprises a step 103 of expulsion of the ammunition 11, in our example under the effect of compressed air 13 in the tube 12. Finally, the method according to the invention comprises a step 104 of receiving the ammunition 11 in the receiving bag 17. The method according to the invention has the advantage of operating without pressure regulation. It is not necessary to carry out a pressure check since the ammunition is recovered in the reception cradle.

In the embodiment in which the fixing base 15 comprises a hooking nose 36 on an outer portion 43 of the fixing base 15, the cradle 10 comprising a locking device 51 able to pass from an unlocked configuration to a locked configuration in which the fixing base 15 is held in place around the outlet end 16 of the tube 12, and conversely, the step 101 of fixing the receiving cradle 10 to the outlet end 16 of the tube 12 may include a step 111 of cooperation of the hooking spout 36 with a portion of a collar 42 of the tube 12, a step 112 of rotation of the receiving cradle 10 along a second axis Y, substantially perpendicular to the first axis X, a step 113 of locking 113 of the locking device 51.

Step 102 of injecting compressed air 13 into tube 12 may include a step 121 of connecting a source of compressed air to a valve of tube 12 and a step 122 of releasing compressed air into the tube 12.

The step 104 of receiving the ammunition 11 in the receiving bag 17 may comprise a step 141 of stopping the ammunition 11 by the stop cone 25, a step 142 of depositing the ammunition 11 in the receiving bag 17 and a step 143 of making the extracted ammunition 11 available.

Prior to the step of fixing 101 of the cradle, the method can comprise a step of preparing the cradle. In this step, and in the case of telescopic arms 21, 22, it is necessary to remove the two pins which hold the telescopic arms in the folded position and unfold the reception cradle by unfolding the telescopic arms 21, 22 and the reception bag 17 It is then necessary to put the pins back in place to hold the arms 21, 22 in the unfolded position. If necessary, it is then necessary to reposition the receiving bag 17 so as not to hinder the exit of the ammunition 11.

After the step of preparing the cradle, the method according to the invention may comprise a step of preparing the tube. This step consists of recovering the tube collar and positioning it at the outlet end of the tube. Alternatively, it is possible to take a collar attached to the tube.

After step 104 of receiving the ammunition in the receiving bag, the receiving cradle 10 can be left in position on the tube, or it can be dismantled. In the case where the method according to the invention comprises a step of dismantling the receiving cradle, it is first necessary to close the valve of the compressed air source. The step of disassembling the receiving cradle includes a step of unlocking the locking device to change it from the locked configuration to the unlocked configuration. Advantageously, the dismantling step also includes a step for a user to maintain the receiving cradle to avoid sudden unhooking. Finally, the dismantling step includes a step of rotating the receiving cradle at the level of the hooking spout around the second Y axis in order to completely separate the cradle from the tube. The cradle is then reusable on the same tube or on another tube.

As emerges from this description, the device according to the invention and the associated extraction method allow the extraction by the mouth of artillery weapon ammunition, with two major new characteristics. The entire extraction operation is carried out without danger for users, because no step requires passing all or part of the body in front of the mouth of the tube. The receiving cradle is not specific to a type of ammunition (i.e. of the "fuse", i.e. the nose cone of the ammunition). The extraction method according to the invention makes it possible to extract ammunition from a tube whatever the position of the ammunition in the tube.

The configuration of the reception cradle 10 with its stop cone is very important. During step 102 of injecting compressed air into tube 12, there is no need to regulate the air pressure. Once the pneumatic system is in place through a hose at the valve of the tube, it is sufficient to open the valve of the pneumatic system, without worrying about the pressure at which the air is injected. In other words, the invention makes it possible to connect the pneumatic system to the tube and to inject compressed air at the maximum available pressure.

Advantageously, the pneumatic system is autonomous, and includes a pump to recharge it.

The extraction process is simple and fast, compatible with use in an operational deployment context (i.e. in a theater of war operations). The reception cradle is easily transportable.

Claims (11)

Receiving cradle (10) intended to receive ammunition (11) extracted from a tube (12) extending along a first axis X by an expulsion means (13) comprising:

1. A structure (14) comprising a fixing base (15) intended to be fixed to an outlet end (16) of the tube (12);
2. A receiving bag (17) extending substantially along the first axis X fixed to the structure (14), intended to receive the ammunition (11).

Receiving cradle (10) according to Claim 1, characterized in that the structure (14) comprises a first arm (21) and a second arm (22), each being connected at a first end (19) to the base of the fixing (15), and in that the receiving bag (17) is fixed to the two arms (21, 22) and to the fixing base (15). Receiving cradle (10) according to Claim 2, characterized in that the fixing base (15) has a U-shape, an inner portion (23) being intended to be in contact with an outer portion (24) of the outlet end (16) of the tube (12). Reception cradle (10) according to any one of claims 2 or 3, characterized in that the reception bag (17) comprises:

1. a stop cone (25) positioned at a second end (26) of the two arms (21, 22), configured to form an abutment for the ammunition (11),
2. a holding device (27) for the stop cone (25) connecting the stop cone (25) to the two arms (21, 22) and to the fixing base (15).

Receiving cradle (10) according to Claim 4, characterized in that the device for holding (27) the stop cone (25) comprises:

1. two lateral straps (31, 32) extending from the stop cone (25) on either side of the stop cone (25) to two attachment points (33, 34), a first (33) of the two attachment points being positioned on the first arm (21) and a second (34) of the two attachment points being positioned on the second arm (22),
2. a fastening strap (35) extending from the stop cone (25) to the fixing base (15).

Receiving cradle (10) according to any one of Claims 1 to 5, characterized in that the fixing base (15) comprises a hooking nose (36) on an outer portion (43) of the attachment (15), intended to cooperate with a portion of a collar (42) of the tube (12) so as to allow the rotation of the receiving cradle (10) along a second axis Y, substantially perpendicular to the first axis X, when positioning the receiving cradle (10) on the outlet end (16) of the tube (12). Receiving cradle (10) according to Claims 2 and 5, characterized in that the arms (21, 22) are telescopic, and in that each of the two attachment points (33, 34) is configured to slide on the arm (21, 22) on which it is positioned. Receiving cradle (10) according to any one of Claims 1 to 7, characterized in that it comprises a locking device (51) capable of passing from an unlocked configuration to a locked configuration in which the fixing base (15) is held in place around the outlet end (16) of the tube (12), and vice versa, comprising:

1. a handle (52) configured to at least partially match the shape of the outlet end (16) of the tube (12),
2. a fixing means (53) of the handle (52) on the fixing base (15).

Receiving cradle (10) according to Claim 8, characterized in that the means of fixing (53) of the handle (52) on the fixing base (15) comprises a ball joint (54) and a flat support (55 ). Method for extracting ammunition (11) from a tube (12) extending along a first axis X by an expulsion means (13) comprising the following steps:

1. attachment (101) of a receiving cradle (10) to an outlet end (16) of the tube (12), the receiving cradle (10) comprising:
   1. a structure (14) comprising a fixing base (15) intended to be fixed to an outlet end (16) of the tube (12),
   2. a receiving bag (17) extending substantially along the first axis X fixed to the structure (14), intended to receive the ammunition (11).
2. activation (102) of the expulsion means (13);
3. expulsion (103) of the ammunition (11);
4. reception (104) of the ammunition (11) in the reception bag (17).

Extraction method according to claim 10, the fixing base (15) comprising a hooking nose (36) on an outer portion (43) of the fixing base (15), the cradle (10) comprising a locking device (51) capable of passing from an unlocked configuration to a locked configuration in which the fixing base (15) is held in place around the outlet end (16) of the tube (12), and vice versa , characterized in that the step (101) of fixing the receiving cradle (10) to the outlet end (16) of the tube (12) comprises the following steps:

1. cooperation (111) of the hooking spout (36) with a portion of a collar (42) of the tube (12),
2. rotation (112) of the receiving cradle (10) along a second axis Y, substantially perpendicular to the first axis X,
3. lock (113) of the locking device (51).