EP0221789A1 - Device for the shooting range firing of a mortar - Google Patents

Device for the shooting range firing of a mortar Download PDF

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Publication number
EP0221789A1
EP0221789A1 EP86401900A EP86401900A EP0221789A1 EP 0221789 A1 EP0221789 A1 EP 0221789A1 EP 86401900 A EP86401900 A EP 86401900A EP 86401900 A EP86401900 A EP 86401900A EP 0221789 A1 EP0221789 A1 EP 0221789A1
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EP
European Patent Office
Prior art keywords
projectile
pseudo
mortar
calibrated
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86401900A
Other languages
German (de)
French (fr)
Inventor
Christian Losfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR8512922A external-priority patent/FR2586799B1/en
Priority claimed from FR8515560A external-priority patent/FR2588951B2/en
Application filed by Individual filed Critical Individual
Publication of EP0221789A1 publication Critical patent/EP0221789A1/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles
    • F42B8/20—Mortar grenades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/22—Tools for extracting cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/02—Cartridges
    • F42B8/10—Cartridges with sub-calibre adaptor

Definitions

  • training in the use of mortars involves a reduced firing phase, consisting of the use of small, under-calibrated projectiles - i.e. a diameter smaller than that of the mortar - having a range of a few hundred meters.
  • the originality of the present invention is that it makes it possible to carry out a very economical reduced fire, by using an inert pseudo-projectile serving as a reduction tube for an under-calibrated projectile: this pseudo-projectile is not launched, and after the shot remains in the mortar, from which it is extracted before being reloaded - by another sub-calibrated projectile - and reused in the mortar.
  • the exercise shooting is carried out with a single pseudo-projectile.
  • Figures 1 and 2 are axial sections of the barrel tube and the pseudo-projectile, with a view of the sub-calibrated projectile.
  • the pseudo-projectile 1 receives, in its axial reduction tube, the sub-calibrated projectile 2, which is introduced therein in a simple and immediate manner.
  • the pseudo-projectile is loaded into the mouth of the barrel tube 3 of a mortar.
  • the barrel tube 3 is externally equipped with a winch 4 which makes it possible to wind a cable or a chain 5 the end of which comes to be fixed in any way on the pseudo-projectile 1
  • the pseudo-projectile 1 is raised after the reduced firing of an under-calibrated projectile, and it has left the barrel-tube 3, the winch being accompanied by a retractable bracket 6.
  • the barrel tube 3 comprises a movable hatch 7, which allows the pseudo-projectile 1 to be released laterally, this hatch 6 having any shape, position and closure.
  • the portion of the barrel tube 3 which contains the pseudo-projectile 1 can be detached and can tilt by releasing the pseudo-projectile 1, while the opening of this portion of barrel tube can be carried out without having to move the mouth of this barrel tube, thanks in particular to an external frame.
  • the barrel-tube comprises axially a system for hooking the tail of the pseudo-projectile, this system being fixed to the end of a telescopic axis whose movement is controlled from outside the barrel-tube, and this system comprising a percussion rod inside the telescopic axis, this rod serving as an extension of the mortar striker and being in the controlled percussion position of the sub-calibrated projectile when the telescopic axis is more softened.
  • the pseudo-projectile 1 may include means for. percussion of the sub-calibrated projectile, these means being autonomous or in connection with the striker of the mortar.
  • the pseudo-projectile 1 may also include means for gripping and retaining the sub-calibrated projectile, these means being with automatic or controlled action.
  • Figure 3 which is also an axial section, shows two original embodiments of the invention.
  • An attachment means 8 of the pseudo-projectile 1 makes it possible to extract the latter from the barrel-tube of the mortar.
  • a base 9 is introduced into the mouth of the barrel tube of the mortar before the pseudo-projectile 1, to prevent the latter from sinking into the barrel tube, so as to avoid having to extract it to reload it with a new under-calibrated projectile.
  • This base 9 contains axially a rod 10 which transmits the movement of the movable striker of the mortar and therefore makes it possible to carry out a controlled shot.
  • this base 9 comprises, by way of example, at 11, an attachment means which makes it possible to extract it from the barrel-tube of the mortar.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Abstract

The invention comes within the sector of conventional infantry armaments. It relates to a mortar pseudo-projectile (1) which is inert, serves as a reducing tube for a low calibre projectile (2) remains in the mortar after this low-calibre projectile has been fired, and is removed from it to serve for launching a new low-calibre projectile. This device makes it possible to conduct the most economical and most realistic exercise shooting. <IMAGE>

Description

Dans le secteur des armements conventionnels d'infanterie, l'instruction à.l'emploi des mortiers passe par une phase de tir réduit, consistant dans l'utilisation de petits projectiles sous-calibrés --c'est-à-dire d'un diamètre inférieur à celui du mortier-- ayant une portée de quelques centaines de mètres.In the conventional infantry armaments sector, training in the use of mortars involves a reduced firing phase, consisting of the use of small, under-calibrated projectiles - i.e. a diameter smaller than that of the mortar - having a range of a few hundred meters.

Les dispositifs connus de sous-calibrage sont de deux sortes :

  • - les tubes-réducteurs, qui sont insérés dans les tubes-canons des mortiers, et dans lesquels sont tirés --c'est-à-dire lancés-- les projectiles sous-calibrés, le tir s'effectuant par introduction dans la bouche du tube-réducteur ;
  • - les projectiles gigognes, composés d'un gros projectile "sabot" au calibre du mortier, et d'un projectile sous-calibré qui est contenu dans le "sabot", ce dernier servant de mini-mortier et étant lui-même tiré à une dizaine de mètres devant le mortier.
There are two types of known devices for sub-calibration:
  • - the reduction tubes, which are inserted into the cannon-tubes of the mortars, and in which are fired - i.e. launched - the sub-calibrated projectiles, the firing being carried out by introduction into the mouth reducer tube;
  • - the nesting projectiles, composed of a large mortar caliber "sabot" projectile, and an under-calibrated projectile which is contained in the "sabot", the latter serving as a mini-mortar and itself being fired at ten meters in front of the mortar.

Les inconvénients de ces deux dispositifs sont les suivants :

  • - les tubes-réducteurs n'utilisent que des petits projectiles, qui ne permettent pas d'effectuer, en même temps, l'instruction au maniement et au chargement des projectiles volumineux et lourds dans les mortiers de grands calibres ;
  • - les projectiles gigognes sont d'un emploi coûteux, ils sont peu précis, ils encrassent les mortiers et ils habituent à se déplacer devant le mortier pour récupérer le "sabot" (ce qui est prohibé par les règles élémentaires de sécurité).
The disadvantages of these two devices are as follows:
  • - the reduction tubes use only small projectiles, which do not make it possible to carry out, at the same time, instruction in the handling and loading of bulky and heavy projectiles in large-caliber mortars;
  • - the nesting projectiles are expensive to use, they are imprecise, they foul the mortars and they get used to moving in front of the mortar to recover the "shoe" (which is prohibited by basic safety rules).

L'originalité de la présente invention est de permettre d'effectuer un tir réduit très économique, en utilisant un pseudo-projectile inerte servant de tube-réducteur à un projectile sous-calibré : ce pseudo-projectile n'est pas lancé, et après le tir il reste dans le mortier, dont il est extrait avant d'être rechargé --par un autre projectile sous-calibré-- et réutilisé dans le mortier.The originality of the present invention is that it makes it possible to carry out a very economical reduced fire, by using an inert pseudo-projectile serving as a reduction tube for an under-calibrated projectile: this pseudo-projectile is not launched, and after the shot remains in the mortar, from which it is extracted before being reloaded - by another sub-calibrated projectile - and reused in the mortar.

Ainsi, le tir d'exercice s'effectue avec un seul pseudo-projectile.Thus, the exercise shooting is carried out with a single pseudo-projectile.

Les moyens de l'invention sont décrits ci-après de manière préférentielle et non limitative, telle que représentée dans les dessins.The means of the invention are described below in a preferential and non-limiting manner, as shown in the drawings.

Les figures 1 et 2 sont des coupes axiales du tube-canon et du pseudo-projectile, avec une vue du projectile sous- calibré.Figures 1 and 2 are axial sections of the barrel tube and the pseudo-projectile, with a view of the sub-calibrated projectile.

Description et fonctionnement.Description and operation.

Le pseudo-projectile 1 reçoit, dans son tube-réducteur axial, le projectile sous-calibré 2, qui y est introduit de façon simple et immédiate.The pseudo-projectile 1 receives, in its axial reduction tube, the sub-calibrated projectile 2, which is introduced therein in a simple and immediate manner.

Le pseudo-projectile est chargé dans la bouche du tube-canon 3 d'un mortier.The pseudo-projectile is loaded into the mouth of the barrel tube 3 of a mortar.

Quand le pseudo-projectile 1 arrive dans le bas du tube-canon 3, l'amor- cage de la cartouche propulsive du projectile sous-calibré 2 est percuté par la pointe du percuteur axial du tube-canon 3, ce qui provoque la déflagration de cette cartouche et une importante production de gaz, les gaz poussant et lançant le projectile sous-calibré 2, tandis que le pseudo-projectile 1 reste immobile.When the pseudo-projectile 1 arrives at the bottom of the barrel tube 3, the priming of the propellant cartridge of the sub-calibrated projectile 2 is struck by the tip of the axial striker of the barrel tube 3, which causes the deflagration of this cartridge and a significant production of gas, the gases pushing and launching the sub-calibrated projectile 2, while the pseudo-projectile 1 remains stationary.

Pour réutiliser le pseudo-projectile 1, il faut alors l'extraire du tube-canon 3.To reuse the pseudo-projectile 1, it must then be extracted from the barrel tube 3.

Plusieurs modes d'extraction peuvent être utilisés, sans qu'il soit nécessaire de dépointer le tube-canon 3.Several extraction modes can be used, without the need to pinpoint the barrel tube 3.

Dans un premier mode d'extraction, le tube- canon 3 est équipé extérieurement d'un treuil 4 qui permet d'enrouler un cable ou une chaîne 5 dont l'extrémité vient se fixer d'une façon quelconque sur le pseudo-projectile 1. Ainsi, le pseudo-projectile 1 est remonté après le tir réduit d'un projectile sous-calibré, et il est sorti du tube-canon 3, le treuil étant accompagné d'une potence 6 escamotable.In a first extraction mode, the barrel tube 3 is externally equipped with a winch 4 which makes it possible to wind a cable or a chain 5 the end of which comes to be fixed in any way on the pseudo-projectile 1 Thus, the pseudo-projectile 1 is raised after the reduced firing of an under-calibrated projectile, and it has left the barrel-tube 3, the winch being accompanied by a retractable bracket 6.

Dans un second mode d'extraction, le tube-canon 3 comporte une trappe mobile 7, qui permet de sortir latéralement le pseudo-projectile 1, cette trappe 6 ayant une forme, une position et une fermeture quelconques.In a second extraction mode, the barrel tube 3 comprises a movable hatch 7, which allows the pseudo-projectile 1 to be released laterally, this hatch 6 having any shape, position and closure.

Dans un troisième mode de réalisation, la portion du tube-canon 3 qui contient le pseudo-projectile 1 peut être désolidariséeet peut basculer en libérant le pseudo-projectile 1, tandis que l'ouverture de cette portion de tube-canon peut s'effectuer sans avoir à déplacer la bouche de ce tube-canon, grâce en particulier à une armature externe.In a third embodiment, the portion of the barrel tube 3 which contains the pseudo-projectile 1 can be detached and can tilt by releasing the pseudo-projectile 1, while the opening of this portion of barrel tube can be carried out without having to move the mouth of this barrel tube, thanks in particular to an external frame.

Dans un quatrième mode d'extraction, le tube-canon comporte axialement un système d'accrochage de la queue du pseudo-projectile, ce système étant fixé à l'extrémité d'un axe télescopique dont le mouvement est commandé de l'extérieur du tube-canon, et ce système comportant une tige de percussion à l'intérieur de l'axe télescopique, cette tige servant de prolongement au percuteur du mortier et étant en position de percussion commandée du projectile sous-calibré quand l'axe télescopique est le plus raccouci.In a fourth mode of extraction, the barrel-tube comprises axially a system for hooking the tail of the pseudo-projectile, this system being fixed to the end of a telescopic axis whose movement is controlled from outside the barrel-tube, and this system comprising a percussion rod inside the telescopic axis, this rod serving as an extension of the mortar striker and being in the controlled percussion position of the sub-calibrated projectile when the telescopic axis is more softened.

Le pseudo-projectile 1 peut comporter des moyens de. percussion du projectile sous-calibré, ces moyens étant autonomes ou en liaison avec le percuteur du mortier.The pseudo-projectile 1 may include means for. percussion of the sub-calibrated projectile, these means being autonomous or in connection with the striker of the mortar.

Le pseudo-projectile 1 peut également comporter des moyens de pincement et de retenue du projectile sous-calibré, ces moyens étant à action automatique ou commandée.The pseudo-projectile 1 may also include means for gripping and retaining the sub-calibrated projectile, these means being with automatic or controlled action.

La figure 3, qui est également une coupe axiale, présente deux modes de réalisation originaux de l'invention.Figure 3, which is also an axial section, shows two original embodiments of the invention.

Un moyen d'accrochage 8 du pseudo-projectile 1 permet d'extraire celui-ci hors du tube-canon du mortier.An attachment means 8 of the pseudo-projectile 1 makes it possible to extract the latter from the barrel-tube of the mortar.

Un socle 9 est introduit dans la bouche du tube-canon du mortier avant le pseudo-projectile 1, pour empêcher celui-ci de s'enfoncer dans le tube-canon, de façon à éviter de devoir l'extraire pour le recharger d'un nouveau projectile sous-calibré.A base 9 is introduced into the mouth of the barrel tube of the mortar before the pseudo-projectile 1, to prevent the latter from sinking into the barrel tube, so as to avoid having to extract it to reload it with a new under-calibrated projectile.

Ce socle 9 contient axialement une tige 10 qui transmet le mouvement du percuteur mobile du mortier et permet donc d'effectuer un tir commandé.This base 9 contains axially a rod 10 which transmits the movement of the movable striker of the mortar and therefore makes it possible to carry out a controlled shot.

Enfin, ce socle 9 comporte, à titre d'exemple, en 11, un moyen d'accrochage qui permet de l'extraire hors du tube-canon du mortier.Finally, this base 9 comprises, by way of example, at 11, an attachment means which makes it possible to extract it from the barrel-tube of the mortar.

Claims (6)

1. Dispositif de tir réduit au mortier, composé d'une forme de projectile de mortier, d'un projectile sous-calibré pouvant être contenu dans la forme de projectile, et d'un tube-canon de mortier, la forme de projectile servant axialement de tube de lancement du projectile sous-calibré et étant introduite dans la bouche du tube-canon pour effectuer le tir à portée réduite, caractérisé en ce que la forme de projectile constitue un pseudo-projectile inerte, en ce que le projectile sous-calibré comporte sa propre cartouche de lancement, et en ce que le pseudo-projectile reste dans le tube-canon de mortier après le lancement du projectile sous-calibré.1. Reduced mortar fire device, composed of a mortar projectile form, an under-calibrated projectile which may be contained in the projectile form, and a mortar barrel, the projectile form serving axially of the launching tube of the sub-calibrated projectile and being introduced into the muzzle of the barrel tube to carry out the firing at reduced range, characterized in that the projectile form constitutes an inert pseudo-projectile, in that the projectile calibrated has its own launch cartridge, and in that the pseudo-projectile remains in the mortar barrel after the launch of the sub-calibrated projectile. 2. Dispositif selon la revendication 1, caractérisé en ce que le pseudo-projectile comporte des moyens de percussion du projectile sous-calibré.2. Device according to claim 1, characterized in that the pseudo-projectile comprises means for percussion of the sub-calibrated projectile. 3. Dispositif selon la revendication 1, caractérisé en ce que le pseudo-projectile comporte des moyens de pincement du projectile sous-calibré.3. Device according to claim 1, characterized in that the pseudo-projectile comprises means for gripping the sub-calibrated projectile. 4. Dispositif selon la revendication 1, caractérisé en ce que l'extraction du pseudo-projectile hors du tube-canon se fait sans déplacer la bouche du tube-canon de mortier, ce tube-canon étant équipé de moyens d'extraction.4. Device according to claim 1, characterized in that the extraction of the pseudo-projectile from the barrel tube is done without moving the mouth of the mortar barrel tube, this barrel tube being equipped with extraction means. 5. Dispositif selon la revendication 1, caractérisé en ce que le pseudo-projectile comporte un moyen d'accrochage et d'extraction.5. Device according to claim 1, characterized in that the pseudo-projectile comprises an attachment and extraction means. 6. Dispositif. selon la revendication 1, caractérisé en ce que le pseudo-projectile est introduit dans la bouche du tube-canon de mortier après y avoir introduit un socle qui empêche l'enfoncement du pseudo-projectile, ledit socle contenant axialement une tige de transmission du mouvement du percuteur mobile du mortier et comportant un moyen d'accrochage et d'extraction.6. Device. according to claim 1, characterized in that the pseudo-projectile is introduced into the mouth of the mortar barrel tube after having introduced there a base which prevents the penetration of the pseudo-projectile, said base axially containing a rod for transmitting the movement of the movable mortar striker and comprising a means of attachment and extraction.
EP86401900A 1985-08-30 1986-08-29 Device for the shooting range firing of a mortar Withdrawn EP0221789A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8512922 1985-08-30
FR8512922A FR2586799B1 (en) 1985-08-30 1985-08-30 MORTAR REDUCED SHOOTING DEVICE
FR8515560 1985-10-21
FR8515560A FR2588951B2 (en) 1985-10-21 1985-10-21 MORTAR REDUCED SHOOTING DEVICE

Publications (1)

Publication Number Publication Date
EP0221789A1 true EP0221789A1 (en) 1987-05-13

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Application Number Title Priority Date Filing Date
EP86401900A Withdrawn EP0221789A1 (en) 1985-08-30 1986-08-29 Device for the shooting range firing of a mortar

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EP (1) EP0221789A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002090874A1 (en) * 2001-05-09 2002-11-14 Rocktek Limited Cartridge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451524A (en) * 1945-08-06 1948-10-19 Walker Brooks Range adapter for mortars
FR1060600A (en) * 1952-07-24 1954-04-02 Brandt Soc Nouv Ets Device for extracting a projectile from the tube of a mortar following a misfire
US2786415A (en) * 1951-06-15 1957-03-26 William D Alderson Mortar training device
US3750262A (en) * 1971-10-26 1973-08-07 Us Army Method and apparatus for extracting lodged projectiles
FR2175777A1 (en) * 1972-03-16 1973-10-26 Oerlikon Buehrle Ag

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451524A (en) * 1945-08-06 1948-10-19 Walker Brooks Range adapter for mortars
US2786415A (en) * 1951-06-15 1957-03-26 William D Alderson Mortar training device
FR1060600A (en) * 1952-07-24 1954-04-02 Brandt Soc Nouv Ets Device for extracting a projectile from the tube of a mortar following a misfire
US3750262A (en) * 1971-10-26 1973-08-07 Us Army Method and apparatus for extracting lodged projectiles
FR2175777A1 (en) * 1972-03-16 1973-10-26 Oerlikon Buehrle Ag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002090874A1 (en) * 2001-05-09 2002-11-14 Rocktek Limited Cartridge

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