EP3187812B1 - Mechanical actuation device for rotation of a turret with stowable back-up rotation means - Google Patents

Mechanical actuation device for rotation of a turret with stowable back-up rotation means Download PDF

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Publication number
EP3187812B1
EP3187812B1 EP16200801.5A EP16200801A EP3187812B1 EP 3187812 B1 EP3187812 B1 EP 3187812B1 EP 16200801 A EP16200801 A EP 16200801A EP 3187812 B1 EP3187812 B1 EP 3187812B1
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EP
European Patent Office
Prior art keywords
shaft
gyration
turret
arm
ring
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EP16200801.5A
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German (de)
French (fr)
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EP3187812A1 (en
Inventor
Xavier DESCATOIRE
Jean-Luc Duinat
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Nexter Systems SA
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Nexter Systems SA
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Publication of EP3187812A1 publication Critical patent/EP3187812A1/en
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    • 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
    • F41A27/00—Gun mountings permitting traversing or elevating movement, e.g. gun carriages
    • F41A27/06—Mechanical systems
    • F41A27/18—Mechanical systems for gun turrets
    • F41A27/20—Drives for turret movements

Definitions

  • the technical field of the invention is that of armored vehicles carrying a turret and in particular that devices for pivoting such a turret relative to the vehicle chassis.
  • the turret can be an observation turret or a shooting turret carrying a weapon system.
  • the turret pivots relative to the vehicle frame along a bearing pointing axis which is a vertical axis.
  • the pivoting is performed by main motorized gyration means, such as an electric motor. It may happen that the principal means of gyration are degraded, that is to say that they are no longer able to rotate the turret. In such a case, it is necessary to be able to manually rotate the turret by secondary manual gyration means.
  • the conventional solution that is usually adopted is to have a crank close to the axis of rotation of the main gyration means, and a mechanical link assembly for selectively securing the rotation of the main gyration means and the crank.
  • the pinion of the third shaft can be placed either in a position in which it is not in engagement with the pinion of the first axis, which allows a rotation of the principal means of gyration without the rotational movement being transmitted to the crank or in a position in which it is engaged with the pinion of the first axis, which allows, by actuating the crank, to manually rotate the first shaft and therefore the turret.
  • crank occupies a large space in the cabin, whether in use or not.
  • the object of the invention is therefore to propose a device for manual turret actuation intended to be arranged behind the operator or operators, allowing the turret to be pivoted ergonomically and in coordination with sighting means and which do not disturb the or the operators when the motorized means of gyration are not degraded.
  • the mechanical turret gyration control device comprises locking means configured to selectively lock the arm in several positions of its pivoting stroke.
  • locking means configured to selectively lock the arm in several positions of its pivoting stroke.
  • the locking means may comprise teeth carried by the frame, close to the connection of the latter with the arm, and a finger mounted on the arm and configured to engage selectively with one of the teeth.
  • the locking means comprise teeth carried by the frame, close to the connection of the latter with the arm, a idler gear rotatably mounted on the arm and engaged with said teeth, and a finger mounted on the arm and configured to selectively engage one of the teeth of the idler gear.
  • the first transmission means comprise a first shaft whose one end is mechanically connected to the motorized means of gyration and whose other end is received in the frame and carries a conical pinion, the frame further comprising a second shaft, horizontal, whose axis of rotation is aligned with the axis of pivoting of the arm, the second shaft carrying a first conical gear meshing with the bevel gear of the first shaft, and a second conical gear capable of meshing selectively with the second transmission means.
  • the second transmission means comprise a shaft rotatably mounted in a casing of the arm, a first end of said shaft being mechanically connected to the crank and the second end of said shaft carrying a conical pinion adapted to be put into operation. selectively taken with a pinion forming part of the first transmission means, where appropriate with the second conical pinion of the horizontal shaft, by means of interconnection means.
  • the clutching means comprise, in order from the second end of the arm shaft, a ring slidably mounted on said shaft and integral in rotation thereof, in particular by splines, the bevel gear said shaft being secured to said ring, and a compression spring threaded onto said shaft and bearing on the ring at one of its ends and on a shoulder of said shaft at its other end, being further provided with moving means and locking in position of the ring operable to allow the ring to be pushed by the spring to a so-called clutch position in which the bevel gear of said shaft engages the second bevel gear of the horizontal shaft, and to move the ring in the direction said shoulder of the shaft against the action of the spring, to a so-called declutched position in which the conical pinion of said shaft does not mesh said second pinion co Picnic.
  • the means for moving and locking in position of the ring may comprise a clutch fork having two teeth and an actuating portion, the teeth riding on the ring, and a lever mechanically connected to the fork and configured to move the fork between two positions corresponding to crabotée and declutched positions of the ring, the teeth of the fork exerting support on the ring to move the latter to the declutched position.
  • FIG. 1 it can be seen that there is shown schematically a device 1 for mechanical control of turret gyration, disposed inside the cockpit 2 of the turret, in particular behind one of the seats 3 of the turret 2 cockpit 2, an operator 4 sitting on said seat 3.
  • the device 1 comprises motorized main gyration means 5, making it possible to turn the turret by means of first transmission means 6 configured to take up the output movement of the main gyration means 5 and to transmit it to a ring 6a secured to the turret to turn the latter.
  • first transmission means 6 configured to take up the output movement of the main gyration means 5 and to transmit it to a ring 6a secured to the turret to turn the latter.
  • the first transmission means 6 also comprise a first shaft 7, one end 7a of which is mechanically connected to the motorized gyration means 5. Referring to FIG. Figure 3 it can be seen that the other end 7b of the first shaft 7 carries a conical pinion 8 placed inside a housing forming a housing 9 ( Figure 2 ).
  • the frame 9 further encloses a second horizontal shaft 10 rotatably mounted in the frame 9 by means of bearings 10a ( Figure 2 ), said second shaft 10 carrying at one end a first conical pinion 11 meshing with the conical pinion 8 of the first shaft, and a second conical pinion 12 at the other end, on the other side of the conical pinion 8.
  • the device 1 further comprises second transmission means formed of an arm 13 comprising an elongated casing 14 mounted to pivot on the frame 9 by the intermediate bearings 10a, so around a pivot axis aligned with the axis of the second shaft 10.
  • the arm 13 is pivotable between a raised or retracted position, non-functional, shown on the Figure 2 , in which it is located behind the seats 3 and does not hinder the operators, and a lowered position, functional, represented on the Figures 1 and 3 .
  • the casing 14 of the arm 13 surrounds a third shaft 15 rotatably mounted in the casing 14 by means of two bearings 16a, 16b.
  • the free end 15a of the third shaft 15 is connected to a crank 17 by a bevel gear 18.
  • the crank 17 (which can be dismountable) therefore allows the operator 4 to manually rotate the shaft 15.
  • the third shaft 15 is further provided, at its other end 15b, with interconnection means which comprise, in order from the end 15b, a ring 20 slidably mounted on the shaft 15 and integral in rotation with that by splines (not visible), a conical pinion 21 integral with said ring 20 near the end 15b, and a compression spring 22 threaded onto the shaft 15 and resting on the ring 20 at one end. from its ends and on a shoulder of the shaft 15 at its other end.
  • interconnection means comprise, in order from the end 15b, a ring 20 slidably mounted on the shaft 15 and integral in rotation with that by splines (not visible), a conical pinion 21 integral with said ring 20 near the end 15b, and a compression spring 22 threaded onto the shaft 15 and resting on the ring 20 at one end. from its ends and on a shoulder of the shaft 15 at its other end.
  • the conical gear 21 is able to engage the second conical gear 12 carried by the second shaft 10.
  • the arm 13 also comprises means 19 for moving and locking in position of the ring 20, which comprise a fork 23 having two teeth 23a which straddle the ring 20.
  • the teeth 23a are connected by a substantially cylindrical body portion 23b, mounted to pivoting on the housing 14, the pivot axis being the longitudinal axis of the body portion 23b.
  • the ring 20 has a flange 20a on which the teeth 23a bear.
  • the fork 23 finally comprises an actuating portion 23c, diametrically opposed to the teeth 23a.
  • the displacement and locking means 19 also comprise a lever 24, one end 24a of which is pivotally mounted on the casing 14 and the other end of which carries a manual operating handle 24b.
  • the fork 23 and the lever 24 are connected by a connecting rod 25, one end of which is pivotally connected to the actuating portion 23c of the fork 23 and the other end of which is pivotally connected to said end 24a of the lever 24.
  • the handle 24b of the handle 24 is oriented towards the end 15b of the shaft 15 carrying the ring 20.
  • the connecting rod 25 is also pushed towards this end 15b, as well as the part of actuating 23c of the fork 23. Since the fork 23 is pivotally mounted at its body portion 23b, the teeth 23a are pushed away from said end 15b and thus push the collar 20a of the ring 20 in the direction opposite the second conical gear 12, which has the effect of disengaging the pinion 21 of the second conical gear 12, compressing the spring 22.
  • control device 1 further comprises locking means 26 of the orientation of the arm 13 relative to the frame 9.
  • the blocking means 26 comprise a toothed sector 27 which is fixedly mounted on the frame 9, close to the connection with the arm 13, and which follows an arc of a circle centered on the longitudinal axis of the second shaft 10.
  • An idle gear 28 is mounted for free rotation on an axle 28a integral with the casing 14 and in a position such that it is in engagement with the teeth 27a of the toothed sector 27 whatever the angular position of the arm 13 relative to the frame 9 .
  • a locking pin 29 is slidably mounted in a sleeve 30 secured to the casing 14 and opening in the vicinity of the idle gear 28.
  • the finger 29 has substantially the shape of a piston having a rod 29a and a head 29b.
  • the head 29b has a slot 29c formed by two teeth and intended to engage with one of the teeth of the idler gear 28 in a position of the so-called locking finger 29.
  • the finger 29 is thus oriented so that the slot 29c is facing the teeth of the idler gear 28.
  • the rod 29a passes through a through hole formed in the bottom of the sleeve 30 and the end of the rod 29a is connected by a pivot connection 31 to a piece 32 of trapezoidal section, near the base thereof.
  • the piece 32 carries a handle 33 on the opposite side to the base.
  • a compression spring 34 is mounted in the sleeve 30 and around the rod 29a of the finger 29, in contact with the bottom of the sleeve 30 at one of its ends and in contact with the head 29b of the piston at its other end. As a result, the spring 34 pulls the trapezoidal piece 32 against the outer side 30a of the bottom of the sleeve 30 to lock the latter in position.
  • the finger 29 is further retracted into the sleeve 30 in the configuration of the Figure 6 than in that of the Figure 7 . So we can notice that in the configuration of the Figure 6 the finger 29 is not engaged with the idle gear 28, and the orientation of the arm 13 is not blocked. Conversely, in the configuration of the Figure 7 the finger 29 is engaged with the idle gear 28, and the orientation of the arm 13 is blocked.
  • the operator first of all lowers the arm 13 of the raised position ( Figure 2 ) to a lowered position ( Figure 1 ). For this it first unlocks the idle gear 28 by pulling the handle 33 downwards (following the arrow F2 on the Figure 5 ), which has the effect of raising the finger 29 upwards (arrow F1) and to move it away from the idle gear 28.
  • Figure 5 shows the finger in the unlocked position.
  • the operator then makes the arm 13 pivot downwards (arrow F2) with a gravity movement accompanied by the operator using the handle 33.
  • the operator can place the arm 13 in the proper orientation given the size of the operator and then to lock the arm 13 in said proper orientation.
  • the operator then pulls on the handle 33, which was then in the configuration of the Figure 6 , and relieves it to place it in the configuration of the Figure 7 with the finger 29 engaged with the idle gear 28.
  • the presence of the idler gear 28 makes it possible to deport the axis of the finger 29 and its sleeve 30 in a position more favorable to the mounting of this element and which also promotes ergonomic access to the handle 33.
  • the finger 29 could engage directly with the teeth 27a of the toothed sector 27, but it should then be oriented with its axis substantially parallel to the arm 13.

Description

Le domaine technique de l'invention est celui des véhicules blindés portant une tourelle et en particulier celui des dispositifs permettant le pivotement d'une telle tourelle par rapport au châssis du véhicule.The technical field of the invention is that of armored vehicles carrying a turret and in particular that devices for pivoting such a turret relative to the vehicle chassis.

Il est classique de doter un véhicule blindé d'une tourelle. Selon le cas la tourelle peut être une tourelle d'observation ou bien une tourelle de tir portant un système d'arme. Dans tous les cas la tourelle pivote par rapport au châssis du véhicule suivant un axe de pointage en gisement qui est un axe vertical. Le pivotement est réalisé par des moyens de giration motorisés principaux, tels qu'un moteur électrique. Il peut arriver que les moyens de giration principaux soient dégradés, c'est-à-dire qu'ils ne sont plus en mesure de faire pivoter la tourelle. Dans un tel cas, il faut pouvoir faire pivoter manuellement la tourelle par des moyens de giration manuels secondaires. La solution classique qui est habituellement retenue est de disposer une manivelle à proximité de l'axe de rotation des moyens de giration principaux, ainsi qu'un ensemble de liaison mécanique permettant de solidariser de manière sélective la rotation des moyens de giration principaux et de la manivelle.It is traditional to equip an armored vehicle with a turret. Depending on the case, the turret can be an observation turret or a shooting turret carrying a weapon system. In all cases the turret pivots relative to the vehicle frame along a bearing pointing axis which is a vertical axis. The pivoting is performed by main motorized gyration means, such as an electric motor. It may happen that the principal means of gyration are degraded, that is to say that they are no longer able to rotate the turret. In such a case, it is necessary to be able to manually rotate the turret by secondary manual gyration means. The conventional solution that is usually adopted is to have a crank close to the axis of rotation of the main gyration means, and a mechanical link assembly for selectively securing the rotation of the main gyration means and the crank.

On connaît, par exemple par le brevet US4579036 , un dispositif d'entrainement d'une tourelle dont les moyens de giration principaux entraînent un premier arbre, une manivelle permettant la rotation d'un deuxième arbre parallèle au premier, les deux arbres portant chacun un pignon droit l'un à côté de l'autre, et un ensemble de liaison mécanique comprenant un troisième arbre portant également un pignon droit toujours en prise avec le pignon du deuxième arbre. Le pignon du troisième arbre peut être placé soit dans une position dans laquelle il n'est pas en prise avec le pignon du premier axe, ce qui permet une rotation des moyens de giration principaux sans que le mouvement de rotation ne soit transmis à la manivelle, soit dans une position dans laquelle il est en prise avec le pignon du premier axe, ce qui permet, par actionnement de la manivelle, de faire tourner manuellement le premier arbre et donc la tourelle.We know, for example by the patent US4579036 , a drive device of a turret whose main means of gyration drive a first shaft, a crank allowing the rotation of a second shaft parallel to the first, the two shafts each carrying a spur gear one next to the another, and a mechanical linkage assembly including a third bearing shaft also a right pinion always in engagement with the pinion of the second tree. The pinion of the third shaft can be placed either in a position in which it is not in engagement with the pinion of the first axis, which allows a rotation of the principal means of gyration without the rotational movement being transmitted to the crank or in a position in which it is engaged with the pinion of the first axis, which allows, by actuating the crank, to manually rotate the first shaft and therefore the turret.

Les progrès technologiques ont permis d'équiper la zone occupée par le ou les opérateurs de la tourelle, à savoir l'habitacle, avec de nombreux dispositifs tels que des moniteurs, des radios, des boîtiers d'opérateurs, etc.Technological progress has made it possible to equip the area occupied by the operator or operators of the turret, namely the passenger compartment, with numerous devices such as monitors, radios, operator boxes, etc.

Ainsi, l'un des problèmes posés est la réduction de la place disponible dans l'habitacle, ce qui amène bien souvent à ce que le système de giration manuelle de tourelle ne puisse être qu'à l'arrière du ou des opérateurs dans les véhicules blindés actuels.Thus, one of the problems posed is the reduction of the space available in the passenger compartment, which often leads to the fact that the manual turret gyration system can only be at the rear of the operator (s) in the cars. current armored vehicles.

L'intégration d'un dispositif tel que celui décrit dans le brevet US4579036 ne permet pas une bonne ergonomie du dispositif. En effet, l'opérateur doit se retourner pour actionner la manivelle, et il n'a donc plus accès aux autres dispositifs de l'habitacle, tels que la lunette de visée, et ne peut donc pas coordonner le pointage d'une cible avec le déplacement de la tourelle.The integration of a device such as that described in the patent US4579036 does not allow good ergonomics of the device. Indeed, the operator must turn to operate the crank, and it no longer has access to other devices in the cabin, such as the scope, and can not coordinate the pointing of a target with moving the turret.

En outre, la manivelle occupe un espace important dans l'habitacle, qu'elle soit en utilisation ou non.In addition, the crank occupies a large space in the cabin, whether in use or not.

L'invention a donc pour but de proposer un dispositif d'actionnement manuel de tourelle, destiné à être disposé à l'arrière du ou des opérateurs, permettant le pivotement de la tourelle de manière ergonomique et en coordination avec des moyens de visée et qui ne gêne pas le ou les opérateurs lorsque les moyens de giration motorisés ne sont pas dégradés.The object of the invention is therefore to propose a device for manual turret actuation intended to be arranged behind the operator or operators, allowing the turret to be pivoted ergonomically and in coordination with sighting means and which do not disturb the or the operators when the motorized means of gyration are not degraded.

Ainsi l'invention a pour objet un dispositif de commande mécanique de giration de tourelle, comprenant :

  • un bâti destiné à être rendu solidaire de la tourelle,
  • des moyens de giration principaux motorisés,
  • des premiers moyens de transmission configurés pour reprendre le mouvement de sortie des moyens de giration principaux et le transmettre à la tourelle afin de faire tourner cette dernière, et
  • des moyens de giration de secours manuels, comprenant une manivelle et des seconds moyens de transmission sélective du mouvement de sortie de la manivelle auxdits premiers moyens de transmission, de telle sorte que dans un mode dit normal, les moyens de giration principaux entraînent la tourelle en giration, les seconds moyens de transmission n'étant pas mécaniquement reliés aux premiers moyens de transmission, et dans un autre mode dit dégradé, dans lequel les moyens de giration motorisés ne sont pas opérationnels, une rotation manuelle de la manivelle entraîne la tourelle en giration, les seconds moyens de transmission étant alors mécaniquement reliés aux premiers moyens de transmission,
dispositif caractérisé par le fait qu'il comprend en outre :
  • un bras comprenant au moins en partie les seconds moyens de transmission, à une première extrémité duquel est montée la manivelle, et dont l'autre extrémité est reliée au bâti de façon pivotante autour d'un axe horizontal, le bras étant ainsi apte à pivoter entre une position relevée, non fonctionnelle, et une position abaissée, fonctionnelle, dans laquelle un opérateur installé dans la tourelle peut actionner aisément la manivelle afin de faire tourner manuellement la tourelle en giration.
Thus, the subject of the invention is a mechanical turret gyration control device comprising:
  • a frame intended to be made integral with the turret,
  • motorized main gyration means,
  • first transmission means configured to resume the output movement of the main turning means and transmit it to the turret to rotate the turret, and
  • manual emergency gyration means, comprising a crank and second means for selectively transmitting the output movement of the crank to said first transmission means, so that in a so-called normal mode, the main gyration means drive the turret into giration, the second transmission means not being mechanically connected to the first transmission means, and in another so-called degraded mode, in which the motorized means of gyration are not operational, a manual rotation of the crank drives the rotating turret the second transmission means then being mechanically connected to the first transmission means,
characterized by the fact that it further comprises:
  • an arm comprising at least partly the second transmission means, at one end of which is mounted the crank, and the other end is pivotally connected to the frame about a horizontal axis, the arm thus being able to pivot between a raised, non-functional position and a lowered, functional position in which an operator installed in the turret can easily operate the crank to manually turn the rotating turret.

De façon avantageuse, le dispositif de commande mécanique de giration de tourelle comprend des moyens de blocage configurés pour bloquer en position de manière sélective le bras en plusieurs positions de sa course de pivotement. Ainsi, l'orientation du bras, et donc la position de la manivelle, peut être réglée en fonction du percentile de l'opérateur, procurant une ergonomie optimale à la manivelle.Advantageously, the mechanical turret gyration control device comprises locking means configured to selectively lock the arm in several positions of its pivoting stroke. Thus, the orientation of the arm, and thus the position of the crank, can be adjusted according to the percentile of the operator, providing optimal ergonomics to the crank.

Les moyens de blocage peuvent comprendre des dents portées par le bâti, à proximité de la liaison de ce dernier avec le bras, et un doigt monté sur le bras et configuré pour venir en prise de manière sélective avec l'une des dents.The locking means may comprise teeth carried by the frame, close to the connection of the latter with the arm, and a finger mounted on the arm and configured to engage selectively with one of the teeth.

De façon avantageuse, les moyens de blocage comprennent des dents portées par le bâti, à proximité de la liaison de ce dernier avec le bras, un pignon fou monté à rotation sur le bras et en prise avec lesdites dents, et un doigt monté sur le bras et configuré pour venir en prise de manière sélective avec l'une des dents du pignon fou.Advantageously, the locking means comprise teeth carried by the frame, close to the connection of the latter with the arm, a idler gear rotatably mounted on the arm and engaged with said teeth, and a finger mounted on the arm and configured to selectively engage one of the teeth of the idler gear.

Selon un mode de réalisation particulier, les premiers moyens de transmission comprennent un premier arbre dont une extrémité est mécaniquement reliée aux moyens de giration motorisés et dont l'autre extrémité est reçue dans le bâti et porte un pignon conique, le bâti comprenant en outre un second arbre, horizontal, dont l'axe de rotation est aligné sur l'axe de pivotement du bras, le second arbre portant un premier pignon conique engrenant le pignon conique du premier arbre, et un second pignon conique apte à engrener de manière sélective les seconds moyens de transmission.According to a particular embodiment, the first transmission means comprise a first shaft whose one end is mechanically connected to the motorized means of gyration and whose other end is received in the frame and carries a conical pinion, the frame further comprising a second shaft, horizontal, whose axis of rotation is aligned with the axis of pivoting of the arm, the second shaft carrying a first conical gear meshing with the bevel gear of the first shaft, and a second conical gear capable of meshing selectively with the second transmission means.

Selon un mode de réalisation particulier, les seconds moyens de transmission comprennent un arbre monté à rotation dans un carter du bras, une première extrémité dudit arbre étant mécaniquement reliée à la manivelle et la seconde extrémité dudit arbre portant un pignon conique apte à être mis en prise de manière sélective avec un pignon faisant partie des premiers moyens de transmission, le cas échéant avec le second pignon conique de l'arbre horizontal, par l'intermédiaire de moyens de crabotage.According to a particular embodiment, the second transmission means comprise a shaft rotatably mounted in a casing of the arm, a first end of said shaft being mechanically connected to the crank and the second end of said shaft carrying a conical pinion adapted to be put into operation. selectively taken with a pinion forming part of the first transmission means, where appropriate with the second conical pinion of the horizontal shaft, by means of interconnection means.

De façon avantageuse, les moyens de crabotage comprennent, dans l'ordre à partir de la seconde extrémité de l'arbre du bras, une bague montée coulissante sur ledit arbre et solidaire en rotation de celui-ci, notamment par cannelures, le pignon conique dudit arbre étant solidaire de ladite bague, et un ressort de compression enfilé sur ledit arbre et prenant appui sur la bague à l'une de ses extrémités et sur un épaulement dudit arbre à son autre extrémité, étant en outre prévus des moyens de déplacement et de blocage en position de la bague actionnables pour autoriser la bague à être poussée par le ressort jusqu'à une position dite crabotée dans laquelle le pignon conique dudit arbre engrène le second pignon conique de l'arbre horizontal, et pour déplacer la bague en direction dudit épaulement de l'arbre à l'encontre de l'action du ressort, jusqu'à une position dite décrabotée dans laquelle le pignon conique dudit arbre n'engrène pas ledit second pignon conique.Advantageously, the clutching means comprise, in order from the second end of the arm shaft, a ring slidably mounted on said shaft and integral in rotation thereof, in particular by splines, the bevel gear said shaft being secured to said ring, and a compression spring threaded onto said shaft and bearing on the ring at one of its ends and on a shoulder of said shaft at its other end, being further provided with moving means and locking in position of the ring operable to allow the ring to be pushed by the spring to a so-called clutch position in which the bevel gear of said shaft engages the second bevel gear of the horizontal shaft, and to move the ring in the direction said shoulder of the shaft against the action of the spring, to a so-called declutched position in which the conical pinion of said shaft does not mesh said second pinion co Picnic.

Les moyens de déplacement et de blocage en position de la bague peuvent comprendre une fourchette de crabotage ayant deux dents et une partie d'actionnement, les dents enfourchant la bague, et une manette reliée mécaniquement à la fourchette et configurée pour déplacer la fourchette entre deux positions correspondant aux positions crabotée et décrabotée de la bague, les dents de la fourchette exerçant l'appui sur la bague permettant de déplacer cette dernière jusqu'à la position décrabotée.The means for moving and locking in position of the ring may comprise a clutch fork having two teeth and an actuating portion, the teeth riding on the ring, and a lever mechanically connected to the fork and configured to move the fork between two positions corresponding to crabotée and declutched positions of the ring, the teeth of the fork exerting support on the ring to move the latter to the declutched position.

Pour mieux illustrer l'objet de la présente invention, on va en décrire ci-après, à titre indicatif et non limitatif, un mode de réalisation particulier, avec référence au dessin annexé.To better illustrate the subject of the present invention, a particular embodiment will be described below, by way of indication and without limitation, with reference to the appended drawing.

Sur ce dessin :

  • la Figure 1 montre de façon schématique un habitacle de tourelle équipé d'un dispositif de commande selon la présente invention, un opérateur étant à son poste de visée et le bras dudit dispositif étant en position abaissée ;
  • la Figure 2 est une vue en perspective du dispositif de commande seul, en position relevée ;
  • la Figure 3 est une vue en perspective du dispositif de commande, en position abaissée, avec coupe partielle du carter du bras ;
  • les Figures 4a et 4b sont des vues de détail montrant l'arbre du bras en position décrabotée de l'arbre principal et en position crabotée avec ce dernier, respectivement ;
  • la Figure 5 est une vue en perspective de la région basse du dispositif de commande seul, la poignée de verrouillage/déverrouillage de l'orientation du bras étant en position déverrouillée ; et
  • les Figures 6 et 7 sont des vues de détail montrant la poignée de verrouillage en position déverrouillée et en position verrouillée, respectivement, avec coupe partielle du guide du doigt de verrouillage.
On this drawing :
  • the Figure 1 shows schematically a turret cockpit equipped with a control device according to the present invention, an operator being at his sighting station and the arm of said device being in the lowered position;
  • the Figure 2 is a perspective view of the control device alone, in the raised position;
  • the Figure 3 is a perspective view of the control device, in the lowered position, with partial section of the housing of the arm;
  • the Figures 4a and 4b are detailed views showing the shaft of the arm in the declutched position of the main shaft and in a position interconnected with the latter, respectively;
  • the Figure 5 is a perspective view of the low region of the control device alone, the lock / unlock handle of the arm orientation being in the unlocked position; and
  • the Figures 6 and 7 are detailed views showing the locking handle in the unlocked position and in locked position, respectively, with partial section of the locking finger guide.

Si l'on se réfère tout d'abord à la Figure 1, on peut voir que l'on y a représenté de manière schématique un dispositif 1 de commande mécanique de giration de tourelle, disposé à l'intérieur de l'habitacle 2 de la tourelle, en particulier derrière l'un des sièges 3 de l'habitacle 2, un opérateur 4 étant assis sur ledit siège 3.If we first refer to the Figure 1 , it can be seen that there is shown schematically a device 1 for mechanical control of turret gyration, disposed inside the cockpit 2 of the turret, in particular behind one of the seats 3 of the turret 2 cockpit 2, an operator 4 sitting on said seat 3.

Le dispositif 1 comprend des moyens de giration principaux motorisés 5, permettant de faire tourner la tourelle par l'intermédiaire de premiers moyens de transmission 6 configurés pour reprendre le mouvement de sortie des moyens de giration principaux 5 et le transmettre à une couronne 6a solidaire de la tourelle afin de faire tourner cette dernière. Sur la Figure 1, seule une partie de la couronne 6a est représentée.The device 1 comprises motorized main gyration means 5, making it possible to turn the turret by means of first transmission means 6 configured to take up the output movement of the main gyration means 5 and to transmit it to a ring 6a secured to the turret to turn the latter. On the Figure 1 only part of the crown 6a is shown.

Les premiers moyens de transmission 6 comprennent également un premier arbre 7 dont une extrémité 7a est mécaniquement reliée aux moyens de giration motorisés 5. Si l'on se réfère à la Figure 3, on peut voir que l'autre extrémité 7b du premier arbre 7 porte un pignon conique 8 placé à l'intérieur d'un carter formant bâti 9 (Figure 2).The first transmission means 6 also comprise a first shaft 7, one end 7a of which is mechanically connected to the motorized gyration means 5. Referring to FIG. Figure 3 it can be seen that the other end 7b of the first shaft 7 carries a conical pinion 8 placed inside a housing forming a housing 9 ( Figure 2 ).

Le bâti 9 enferme en outre un second arbre 10, horizontal, monté à rotation dans le bâti 9 par l'intermédiaire de roulements 10a (Figure 2), ledit second arbre 10 portant à une extrémité un premier pignon conique 11 engrenant le pignon conique 8 du premier arbre, et un second pignon conique 12 à l'autre extrémité, de l'autre côté du pignon conique 8.The frame 9 further encloses a second horizontal shaft 10 rotatably mounted in the frame 9 by means of bearings 10a ( Figure 2 ), said second shaft 10 carrying at one end a first conical pinion 11 meshing with the conical pinion 8 of the first shaft, and a second conical pinion 12 at the other end, on the other side of the conical pinion 8.

Le dispositif 1 comprend en outre des seconds moyens de transmission formés d'un bras 13 comprenant un carter 14 allongé monté à pivotement sur le bâti 9 par l'intermédiaire des roulements 10a, donc autour d'un axe de pivotement aligné sur l'axe du second arbre 10. De cette manière, le bras 13 est apte à pivoter entre une position relevée ou escamotée, non fonctionnelle, représentée sur la Figure 2, dans laquelle il se situe derrière les sièges 3 et ne gêne pas les opérateurs, et une position abaissée, fonctionnelle, représentée sur les Figures 1 et 3.The device 1 further comprises second transmission means formed of an arm 13 comprising an elongated casing 14 mounted to pivot on the frame 9 by the intermediate bearings 10a, so around a pivot axis aligned with the axis of the second shaft 10. In this way, the arm 13 is pivotable between a raised or retracted position, non-functional, shown on the Figure 2 , in which it is located behind the seats 3 and does not hinder the operators, and a lowered position, functional, represented on the Figures 1 and 3 .

Le carter 14 du bras 13 entoure un troisième arbre 15, monté rotatif dans le carter 14 par l'intermédiaire de deux roulements 16a, 16b. L'extrémité libre 15a du troisième arbre 15 est reliée à une manivelle 17 par un renvoi d'angle 18. La manivelle 17 (qui pourra être démontable) permet donc à l'opérateur 4 de faire tourner manuellement l'arbre 15.The casing 14 of the arm 13 surrounds a third shaft 15 rotatably mounted in the casing 14 by means of two bearings 16a, 16b. The free end 15a of the third shaft 15 is connected to a crank 17 by a bevel gear 18. The crank 17 (which can be dismountable) therefore allows the operator 4 to manually rotate the shaft 15.

Le troisième arbre 15 est en outre muni, à son autre extrémité 15b, de moyens de crabotage qui comprennent, dans l'ordre à partir de l'extrémité 15b, une bague 20 montée coulissante sur l'arbre 15 et solidaire en rotation de celui-ci par des cannelures (non visibles), un pignon conique 21 solidaire de ladite bague 20 à proximité de l'extrémité 15b, et un ressort de compression 22 enfilé sur l'arbre 15 et prenant appui sur la bague 20 à l'une de ses extrémités et sur un épaulement de l'arbre 15 à son autre extrémité.The third shaft 15 is further provided, at its other end 15b, with interconnection means which comprise, in order from the end 15b, a ring 20 slidably mounted on the shaft 15 and integral in rotation with that by splines (not visible), a conical pinion 21 integral with said ring 20 near the end 15b, and a compression spring 22 threaded onto the shaft 15 and resting on the ring 20 at one end. from its ends and on a shoulder of the shaft 15 at its other end.

Le pignon conique 21 est apte à engrener le second pignon conique 12 porté par le deuxième arbre 10.The conical gear 21 is able to engage the second conical gear 12 carried by the second shaft 10.

Le bras 13 comprend également des moyens 19 de déplacement et de blocage en position de la bague 20, qui comprennent une fourchette 23 ayant deux dents 23a qui enfourchent la bague 20. Les dents 23a sont reliées par une partie corps 23b sensiblement cylindrique, montée à pivotement sur le carter 14, l'axe de pivotement étant l'axe longitudinal de la partie corps 23b. La bague 20 présente une collerette 20a sur laquelle les dents 23a prennent appui. La fourchette 23 comprend enfin une partie d'actionnement 23c, diamétralement opposée aux dents 23a.The arm 13 also comprises means 19 for moving and locking in position of the ring 20, which comprise a fork 23 having two teeth 23a which straddle the ring 20. The teeth 23a are connected by a substantially cylindrical body portion 23b, mounted to pivoting on the housing 14, the pivot axis being the longitudinal axis of the body portion 23b. The ring 20 has a flange 20a on which the teeth 23a bear. The fork 23 finally comprises an actuating portion 23c, diametrically opposed to the teeth 23a.

Les moyens de déplacement et de blocage 19 comprennent également une manette 24 dont une extrémité 24a est montée à pivotement sur le carter 14 et dont l'autre extrémité porte une poignée d'actionnement manuel 24b.The displacement and locking means 19 also comprise a lever 24, one end 24a of which is pivotally mounted on the casing 14 and the other end of which carries a manual operating handle 24b.

La fourchette 23 et la manette 24 sont reliées par une bielle 25 dont une extrémité est reliée à pivotement à la partie d'actionnement 23c de la fourchette 23 et dont l'autre extrémité est reliée à pivotement à ladite extrémité 24a de la manette 24.The fork 23 and the lever 24 are connected by a connecting rod 25, one end of which is pivotally connected to the actuating portion 23c of the fork 23 and the other end of which is pivotally connected to said end 24a of the lever 24.

Si l'on se réfère maintenant aux Figures 4a et 4b, on peut voir qu'à l'aide des moyens de déplacement et de blocage 19, la bague 20 peut être amenée à coulisser entre une position dite décrabotée et une position dite crabotée représentées respectivement sur les Figures 4a et 4b.If we now turn to Figures 4a and 4b it can be seen that with the aid of the displacement and locking means 19, the ring 20 can be slid between a so-called declutched position and a so-called dogged position respectively represented on the Figures 4a and 4b .

En position décrabotée, la poignée 24b de la manette 24 est orientée vers l'extrémité 15b de l'arbre 15 portant la bague 20. De cette manière, la bielle 25 est également poussée vers cette extrémité 15b, de même que la partie d'actionnement 23c de la fourchette 23. Etant donné que la fourchette 23 est montée pivotante au niveau de sa partie corps 23b, les dents 23a sont poussées à l'opposé de ladite extrémité 15b et donc poussent la collerette 20a de la bague 20 dans la direction opposée au second pignon conique 12, ce qui a pour effet de décraboter le pignon 21 du second pignon conique 12, en comprimant le ressort 22.In the declutched position, the handle 24b of the handle 24 is oriented towards the end 15b of the shaft 15 carrying the ring 20. In this way, the connecting rod 25 is also pushed towards this end 15b, as well as the part of actuating 23c of the fork 23. Since the fork 23 is pivotally mounted at its body portion 23b, the teeth 23a are pushed away from said end 15b and thus push the collar 20a of the ring 20 in the direction opposite the second conical gear 12, which has the effect of disengaging the pinion 21 of the second conical gear 12, compressing the spring 22.

Pour craboter à nouveau le pignon 21 sur le second pignon conique 12, il suffit à l'opérateur 4 de pivoter la poignée 24a vers l'autre extrémité de l'arbre 15. Ainsi, la pression exercée par la fourchette 23 sur la bague 20 est relâchée et le ressort 22 pousse la bague 20 pour mettre en prise le pignon 21 avec le second pignon conique 12.To re-engage pinion 21 on second bevel pinion 12, it is sufficient for operator 4 to pivot handle 24a towards the other end of shaft 15. Thus, the pressure exerted by fork 23 on the 20 is released and the spring 22 pushes the ring 20 to engage the pinion 21 with the second conical pinion 12.

On souligne ici que la position de la liaison entre la bielle 25 et la manette 24 permet de créer un blocage lorsque les moyens 19 sont dans la position décrabotée. Ainsi, le pignon 21 reste décraboté du second pignon conique 12.It is emphasized here that the position of the connection between the connecting rod 25 and the lever 24 makes it possible to create a blocking when the means 19 are in the declutched position. Thus, pinion 21 remains disengaged from second conical gear 12.

Lorsque les moyens de giration principaux motorisés 5 ne sont pas dégradés, le pignon 21 est en position décrabotée du second pignon conique 12 et aucun mouvement de rotation n'est transmis entre le deuxième arbre 10 et le troisième arbre 15 et donc la manivelle 17. En d'autres termes, la manivelle 17 n'est pas amenée à tourner lorsque les moyens de giration principaux 5 sont actionnés.When the main motorized gyration means 5 are not degraded, the pinion 21 is in the declutched position of the second conical pinion 12 and no rotational movement is transmitted between the second shaft 10 and the third shaft 15 and thus the crank 17. In other words, the crank 17 is not rotated when the main turning means 5 are actuated.

Lorsque les moyens de giration principaux motorisés 5 sont dégradés, l'opérateur abaisse le bras 13 à l'aide d'une poignée 33, décrite plus en détail ci-après, et par action sur la manette 24 amène le pignon 21 en position crabotée avec le second pignon conique 12, de sorte qu'une rotation manuelle de la manivelle 17 est transmise au premier arbre 7 par l'intermédiaire du deuxième arbre 10, pour une commande mécanique manuelle de la giration de la tourelle.When the main motorized gyration means 5 are degraded, the operator lowers the arm 13 by means of a handle 33, described in more detail below, and by action on the handle 24 brings the pinion 21 in the clutched position. with the second bevel gear 12, so that a manual rotation of the crank 17 is transmitted to the first shaft 7 via the second shaft 10, for a manual mechanical control of the gyration of the turret.

Si l'on se réfère maintenant aux Figures 5 à 7, on peut voir que le dispositif de commande 1 comprend en outre des moyens de blocage 26 de l'orientation du bras 13 par rapport au bâti 9.If we now turn to Figures 5 to 7 it can be seen that the control device 1 further comprises locking means 26 of the orientation of the arm 13 relative to the frame 9.

Les moyens de blocage 26 comprennent un secteur denté 27 qui est monté fixe sur le bâti 9, à proximité de la liaison avec le bras 13, et qui suit un arc de cercle centré sur l'axe longitudinal du deuxième arbre 10.The blocking means 26 comprise a toothed sector 27 which is fixedly mounted on the frame 9, close to the connection with the arm 13, and which follows an arc of a circle centered on the longitudinal axis of the second shaft 10.

Un pignon fou 28 est monté à rotation libre sur un axe 28a solidaire du carter 14 et dans une position telle qu'il est en prise avec les dents 27a du secteur denté 27 quelle que soit la position angulaire du bras 13 par rapport au bâti 9.An idle gear 28 is mounted for free rotation on an axle 28a integral with the casing 14 and in a position such that it is in engagement with the teeth 27a of the toothed sector 27 whatever the angular position of the arm 13 relative to the frame 9 .

Un doigt de verrouillage 29 est monté coulissant dans un fourreau 30 solidaire du carter 14 et débouchant au voisinage du pignon fou 28. Le doigt 29 a sensiblement la forme d'un piston ayant une tige 29a et une tête 29b. La tête 29b présente une fente 29c formée par deux dents et destinée à venir en prise avec l'une des dents du pignon fou 28 dans une position du doigt 29 dite de verrouillage. Le doigt 29 est donc orienté pour que la fente 29c soit en regard des dents du pignon fou 28. La tige 29a passe par un trou traversant formé dans le fond du fourreau 30 et l'extrémité de la tige 29a est reliée par une liaison pivot 31 à une pièce 32 de section trapézoïdale, à proximité de la base de celle-ci. La pièce 32 porte une poignée 33 sur le côté opposé à la base.A locking pin 29 is slidably mounted in a sleeve 30 secured to the casing 14 and opening in the vicinity of the idle gear 28. The finger 29 has substantially the shape of a piston having a rod 29a and a head 29b. The head 29b has a slot 29c formed by two teeth and intended to engage with one of the teeth of the idler gear 28 in a position of the so-called locking finger 29. The finger 29 is thus oriented so that the slot 29c is facing the teeth of the idler gear 28. The rod 29a passes through a through hole formed in the bottom of the sleeve 30 and the end of the rod 29a is connected by a pivot connection 31 to a piece 32 of trapezoidal section, near the base thereof. The piece 32 carries a handle 33 on the opposite side to the base.

Un ressort de compression 34 est monté dans le fourreau 30 et autour de la tige 29a du doigt 29, en contact avec le fond du fourreau 30 à l'une de ses extrémités et en contact avec la tête 29b du piston à son autre extrémité. Par conséquent, le ressort 34 tire la pièce trapézoïdale 32 contre le côté extérieur 30a du fond du fourreau 30 pour bloquer celle-ci en position.A compression spring 34 is mounted in the sleeve 30 and around the rod 29a of the finger 29, in contact with the bottom of the sleeve 30 at one of its ends and in contact with the head 29b of the piston at its other end. As a result, the spring 34 pulls the trapezoidal piece 32 against the outer side 30a of the bottom of the sleeve 30 to lock the latter in position.

Lorsque l'opérateur 4 souhaite bloquer ou débloquer l'orientation du bras 13, il lui suffit d'actionner la poignée 33.When the operator 4 wishes to block or unblock the orientation of the arm 13, it is sufficient for him to actuate the handle 33.

Si l'on se réfère à la Figure 6, on peut voir que l'un des côtés de la pièce 32 est plaqué contre le côté extérieur 30a du fond du fourreau 30 et la liaison pivot 31 est plus éloignée du côté extérieur 30a que dans la configuration de la Figure 7, dans laquelle la base de la pièce trapézoïdale 32 est en contact avec le coté extérieur 30a du fourreau 30.If we refer to the Figure 6 it can be seen that one side of the piece 32 is pressed against the outer side 30a of the bottom of the sleeve 30 and the pivot connection 31 is further away from the outer side 30a than in the configuration of the Figure 7 in which the base of the trapezoidal piece 32 is in contact with the outer side 30a of the sleeve 30.

Ainsi, le doigt 29 est davantage rétracté dans le fourreau 30 dans la configuration de la Figure 6 que dans celle de la Figure 7. On pourra donc remarquer que dans la configuration de la Figure 6 le doigt 29 n'est pas en prise avec le pignon fou 28, et l'orientation du bras 13 n'est donc pas bloquée. Inversement, dans la configuration de la Figure 7, le doigt 29 est en prise avec le pignon fou 28, et l'orientation du bras 13 est donc bloquée.Thus, the finger 29 is further retracted into the sleeve 30 in the configuration of the Figure 6 than in that of the Figure 7 . So we can notice that in the configuration of the Figure 6 the finger 29 is not engaged with the idle gear 28, and the orientation of the arm 13 is not blocked. Conversely, in the configuration of the Figure 7 the finger 29 is engaged with the idle gear 28, and the orientation of the arm 13 is blocked.

Ainsi, en cas de dégradation des moyens de giration principaux 5, l'opérateur tout d'abord abaisse le bras 13 de la position relevée (Figure 2) vers une position abaissée (Figure 1). Pour cela il déverrouille d'abord le pignon fou 28 en tirant la poignée 33 vers le bas (suivant la flèche F2 sur la Figure 5), ce qui a pour effet de faire remonter le doigt 29 vers le haut (flèche F1) et de l'écarter du pignon fou 28. La Figure 5 montre le doigt dans la position déverrouillée.Thus, in the event of degradation of the main means of gyration 5, the operator first of all lowers the arm 13 of the raised position ( Figure 2 ) to a lowered position ( Figure 1 ). For this it first unlocks the idle gear 28 by pulling the handle 33 downwards (following the arrow F2 on the Figure 5 ), which has the effect of raising the finger 29 upwards (arrow F1) and to move it away from the idle gear 28. Figure 5 shows the finger in the unlocked position.

L'opérateur fait ensuite pivoter le bras 13 vers le bas (flèche F2) avec un mouvement gravitaire accompagné par l'opérateur à l'aide de la poignée 33.The operator then makes the arm 13 pivot downwards (arrow F2) with a gravity movement accompanied by the operator using the handle 33.

Une fois en position abaissée, l'opérateur peut placer le bras 13 dans l'orientation adéquate compte tenu de la taille de l'opérateur puis, pour bloquer le bras 13 dans ladite orientation adéquate. L'opérateur tire alors sur la poignée 33, qui se situait alors dans la configuration de la Figure 6, et la relève pour la placer dans la configuration de la Figure 7, avec le doigt 29 en prise avec le pignon fou 28.Once in the lowered position, the operator can place the arm 13 in the proper orientation given the size of the operator and then to lock the arm 13 in said proper orientation. The operator then pulls on the handle 33, which was then in the configuration of the Figure 6 , and relieves it to place it in the configuration of the Figure 7 with the finger 29 engaged with the idle gear 28.

Si l'opérateur souhaite ajuster encore l'orientation du bras 13, il lui suffit de tirer et d'abaisser la poignée 33 pour désengager le doigt 29 du pignon fou 28, puis de faire pivoter le bras 13 toujours à l'aide de la poignée 33, avant de réengager le doigt 29 avec le pignon fou 28 comme décrit ci-dessus.If the operator wishes to further adjust the orientation of the arm 13, he just needs to pull and lowering the handle 33 to disengage the finger 29 from the idler gear 28, then to pivot the arm 13 again with the handle 33, before reengaging the finger 29 with the idle gear 28 as described above.

On souligne ici que la présence du pignon fou 28 permet de déporter l'axe du doigt 29 et de son fourreau 30 dans une position plus favorable au montage de cet élément et qui favorise aussi un accès ergonomique à la poignée 33.It is emphasized here that the presence of the idler gear 28 makes it possible to deport the axis of the finger 29 and its sleeve 30 in a position more favorable to the mounting of this element and which also promotes ergonomic access to the handle 33.

Le doigt 29 pourrait venir en prise directement avec les dents 27a du secteur denté 27, mais il devrait alors se trouver orienté avec son axe sensiblement parallèle au bras 13.The finger 29 could engage directly with the teeth 27a of the toothed sector 27, but it should then be oriented with its axis substantially parallel to the arm 13.

Une telle solution permet un réglage de l'orientation du bras 13 selon le percentile de l'opérateur.Such a solution allows adjustment of the orientation of the arm 13 according to the percentile of the operator.

Une fois l'orientation du bras 13 correctement réglée par l'opérateur, il suffit à ce dernier d'actionner la manette 24 pour mettre le pignon conique 21 en prise avec le second pignon 12, puis l'opérateur peut commander manuellement à l'aide de la manivelle 27 la giration de la tourelle lorsque les moyens de giration principaux 5 sont dégradés.Once the orientation of the arm 13 correctly set by the operator, it is sufficient for the latter to operate the lever 24 to put the bevel gear 21 in engagement with the second pinion 12, then the operator can manually control the using the crank 27 turret gyration when the main means of gyration 5 are degraded.

Il est bien entendu que le mode de réalisation ci-dessus de la présente invention a été donné à titre indicatif et non limitatif et que des modifications pourront y être apportées sans que l'on s'écarte pour autant du cadre de la présente invention.It is understood that the above embodiment of the present invention has been given as an indication and not limitation and that modifications may be made without departing from the scope of the present invention.

Claims (8)

  1. A device (1) for mechanically controlling the gyration of a turret, comprising:
    - a frame (9) intended to be made integral with the turret,
    - motorised main gyration means (5),
    - first transmission means (6) configured to pick up the output motion of the main gyration means (5) and transmit it to the turret in order to rotate the latter, and
    - manual back-up gyration means, comprising a crank (17) and second transmission means (15, 21) for selectively transmitting the output motion of the crank (17) to said first transmission means (6), such that, in a so-called normal mode, the main gyration means (5) drive the turret into gyration, the second transmission means (15, 21) not being mechanically connected to the first transmission means (6), and, in another mode, so-called degraded mode, in which the motorised gyration means (5) are not operational, a manual rotation of the crank (17) drives the turret into gyration, the second transmission means (15, 21) then being mechanically connected to the first transmission means (6),
    the device (1) being characterised in that it further comprises:
    - an arm (13) at least partially comprising the second transmission means (15, 21), at one end of which the crank (17) is mounted, and the other end of which is pivotally connected to the frame (9) around a horizontal axis, the arm (13) being thus able to pivot between a non-functional, raised position and a functional, lowered position, in which an operator (4) installed in the turret can easily operate the crank (17) in order to manually rotate the turret into gyration.
  2. The device (1) for mechanically controlling the gyration of a turret according to claim 1, characterised in that it comprises blocking means (26) configured to selectively block the arm (13) in position, in several positions of its pivoting stroke.
  3. The device (1) for mechanically controlling the gyration of a turret according to claim 2, characterised in that the blocking means (26) comprise teeth (27a) carried by the frame (9), near the connection between the latter and the arm (13), and a finger (29) mounted on the arm (13) and configured to selectively engage one of the teeth (27a).
  4. The device (1) for mechanically controlling the gyration of a turret according to claim 2, characterised in that the blocking means (26) comprise teeth (27a) carried by the frame (9), near the connection between the latter and the arm (13), and an idle pinion (28) rotatably mounted on the arm (13) and engaged with said teeth (27a), and a finger (29) mounted on the arm (13) and configured to selectively engage one of the teeth of the idle pinion (28).
  5. The device (1) for mechanically controlling the gyration of a turret according to one of claims 1 to 4, characterised in that the first transmission means (6) comprise a first shaft (7), one end (7a) of which is mechanically connected to the motorised gyration means (5) and the other end (7b) of which is received in the frame (9) and carries a bevel gear (8), the frame (9) further comprising a second horizontal shaft (10) whose rotation axis is aligned on the pivot axis of the arm (13), the second shaft (10) carrying a first bevel gear (11) meshing with the bevel gear (8) of the first shaft (7), and a second bevel gear (12) able to selectively mesh with the second transmission means (15, 21).
  6. The device (1) for mechanically controlling the gyration of a turret according to one of claims 1 to 5, characterised in that the second transmission means (15, 21) comprise a shaft (15) rotatably mounted in a housing (14) of the arm (13), a first end (15a) of said shaft (15) being mechanically connected to the crank (17) and the second end (15b) of said shaft (15) carrying a bevel gear (21) able to be selectively engaged with a gear (12) forming part of the first transmission means (6), if applicable with the second bevel gear (12) of the horizontal shaft (10), via ring dogging means.
  7. The device (1) for mechanically controlling the gyration of a turret according to claim 6, characterised in that the ring dogging means comprise, in order from the second end (15a) of the shaft (15) of the arm (13), a ring (20) slidably mounted on said shaft (15) and integral in rotation therewith, in particular using splines, the bevel gear (21) of said shaft (15) being integral with said ring (20), and a compression spring (22) mounted around said shaft (15) and bearing on the ring (20) at one of the ends thereof and on a shoulder of said shaft (15) at the other end thereof, wherein further provided are means (19) for moving and blocking the ring (20) in position, which are operable to allow the ring (20) to be pushed by the spring (22) to a so-called engaged position in which the bevel gear (21) of said shaft (15) meshes with the second bevel gear (12) of the horizontal shaft (10), and to move the ring (20) towards said shoulder of the shaft (15) against the action of the spring (20), to a so-called disengaged position in which the bevel gear (21) of said shaft (15) does not mesh with said second bevel gear (12) .
  8. The device (1) for mechanically controlling the gyration of a turret according to claim 7, characterised in that the means (19) for moving and blocking the ring (20) in position comprise a ring dogging fork (23) having two teeth (23a) and an operating part (23c), the teeth (23a) straddling the ring (20), and a lever (24) mechanically connected to the fork (23) and configured to move the fork (23) between two positions corresponding to the engaged and disengaged positions of the ring (20), the teeth (23a) of the fork (23) applying the force on the ring (20) allowing to move the latter to the disengaged position.
EP16200801.5A 2015-12-29 2016-11-25 Mechanical actuation device for rotation of a turret with stowable back-up rotation means Active EP3187812B1 (en)

Applications Claiming Priority (1)

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FR1502722A FR3046221B1 (en) 2015-12-29 2015-12-29 MECHANICAL TURRET GIRATING CONTROL DEVICE WITH REMOVABLE MANUAL BACKUP GIRATION MEANS

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EP3187812A1 EP3187812A1 (en) 2017-07-05
EP3187812B1 true EP3187812B1 (en) 2018-09-12

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EP (1) EP3187812B1 (en)
FR (1) FR3046221B1 (en)

Cited By (1)

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FR3046221A1 (en) 2017-06-30
EP3187812A1 (en) 2017-07-05
FR3046221B1 (en) 2018-01-05

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