WO2019162896A1 - Protective device for a vertically orientable viewfinder - Google Patents
Protective device for a vertically orientable viewfinder Download PDFInfo
- Publication number
- WO2019162896A1 WO2019162896A1 PCT/IB2019/051458 IB2019051458W WO2019162896A1 WO 2019162896 A1 WO2019162896 A1 WO 2019162896A1 IB 2019051458 W IB2019051458 W IB 2019051458W WO 2019162896 A1 WO2019162896 A1 WO 2019162896A1
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- WO
- WIPO (PCT)
- Prior art keywords
- flap
- cowling
- pointing
- window
- viewfinder
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/26—Peepholes; Windows; Loopholes
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/06—Shields
- F41H5/18—Rotating shields
Definitions
- the technical field of the invention is that of the protection devices for an orientable viewfinder.
- These devices are intended to ensure the protection of the viewfinder against the impact of projectiles.
- These sights are most often fitted to an armored vehicle and they allow the acquisition of the coordinates of a target and the conduct of a shot.
- the viewfinder in a cowling that surrounds it and which has a window allowing in particular the deflection in the field of a line of sight of the viewfinder.
- Patents EP3123100 and FR2509034 describe such protective covers. They have the disadvantage of having to be open to allow the use of the viewfinder which is therefore poorly protected when it is operational.
- US2012 / 024143 also discloses an armed turret which comprises a viewfinder orientable in elevation and location and disposed in a cowling comprising a window allowing in particular the deflection of a line of sight of the viewfinder.
- the subject of the invention is a protection device for an orientable viewfinder, comprising a casing surrounding the viewfinder and comprising a window allowing the deflection of a line of sight of the device viewfinder, characterized in that the casing is spherical and in that it comprises a spherical flap, complementary to that of the cowling, and carrying an opening for the passage of the line of sight, the flap being truncated by a sector and thus having a straight edge arranged in the vicinity an edge of the window for a median pointing position, the shutter closing the window and pivotable about the line of sight, the shutter being moved in site by pointing means so that the opening follows the positioning in the line of sight, the device further comprising means ensuring the rotation of the shutter during the pointing in site, ensuring ain if shutting the window by the shutter for all pointing positions in site.
- the pointing means may comprise a ring pivotally connected to a base of the cowling and pivotally mounted in a bearing around a vertical axis, which ring can be rotated by a motor means and carrying a conical toothed sector meshing with a complementary toothing integral with a stirrup, the stirrup being itself pivotally mounted relative to the cowling about a horizontal axis, the shutter being fixed to the stirrup.
- the flap may be fixed pivotally relative to the stirrup at its opening, the drive means for rotating the shutter comprising a pinion conical profile integral with the shutter and which meshes with a fixed rack of the cowling, the modification of the pointing in site of the stirrup causing the pivoting of the shutter.
- the flap may be fixed pivotally relative to the stirrup at its opening, the drive means for rotating the flap comprising a pin secured to the flap and flowing in a groove formed in the cowling, the modification of the pointing in site of the stirrup causing the pivoting of the shutter.
- a protection device 1 for an orientable viewfinder in situ comprises a generally spherical cover 2 which surrounds the viewfinder and which comprises a longitudinal window 3 allowing the deflection in the field (arrow S) of a line of sight 4 of the viewfinder.
- the window 3 extends along a meridian of the sphere formed by the cowling 2 and is delimited by two parallel lateral edges 3a and 3b, connected by an upper edge 3c and a lower edge 3d.
- the lateral edges 3a, 3b are parallel to the bearing axis 6, or more precisely these lateral edges are arranged in planes parallel to the bearing axis 6 (meridian planes of the spherical cowling 2).
- the lower 3d and upper edges 3c are parallel to the elevation axis 7, or more precisely are arranged in planes parallel to the elevation axis 7.
- the elevation axis 7 is a perpendicular axis at the bearing axis 6.
- the viewfinder is an optical device of known type and which is not described in detail. It is enclosed inside the cowling 2 which is globally spherical. This viewfinder, whose foot 5 is shown in the figures, is pivotable in bearing around the vertical axis 6 (or bearing axis) and is pivotally orientable around a horizontal axis 7 (or axis of site). The orientations in site and in the field are obtained thanks to specific motorizations of the viewfinder (not shown).
- the line of sight 4 can be directed in different directions of space.
- the cowling 2 is generally spherical and it comprises a flap 8 which also has a spherical profile complementary to that of the cowling.
- the shutter 8 is inside the cowling 2 and it closes the window 3, thus providing ballistic protection of the window 3 and the viewfinder when pointing the viewfinder.
- the flap 8 has an opening 9 which allows the passage of the line of sight 4. This opening 9 has the dimension strictly necessary for the viewfinder.
- the cowling consists of two substantially hemispherical shells 2a and 2b and connected to each other by screwed flanges 11, positioned along a generator (see Figure 2).
- the cowling 2 is positioned inside a circular bearing 12 which allows the rollover of the cowling in the bearing, in a manner synchronized with that of the viewfinder itself.
- the cowling 2 is also integral with a stirrup 13 which is pivotally mounted relative to the cowling 2 about the horizontal axis 7.
- the mounting of the stirrup 13 is carried out using bearings 14 which are positioned on two journals 15 integral with the cowling 2 and which receive rings 16 integral with both ends of the stirrup 13.
- the stirrup 13 carries the shutter 8 which is fixed to it at the level of the opening 9.
- the flap 8 comprises in fact a spherical-shaped part 8a on which is fixed a cylindrical tube 8b which materializes the opening 9.
- the tube 8b which is housed in a smooth bearing 17 carried by the stirrup 13.
- the tube 8b also carries a conical pinion 18 (see also Figure 6) (for example glued or welded to the tube 8b).
- This conical pinion 18 meshes with a conical-shaped rack 19 which also has a generally circular shape and is fixed to the spherical cowling 2 along the window 3.
- the pointing in site of the stirrup 13 is controlled by pointing means which comprise a ring 20 in pivot connection relative to a base of the cowling 2 (that is to say, able to pivot to a certain extent with respect to the cowling 2).
- This ring 20 can also rotate freely relative to the circular bearing 12, an inner ring is integral with the cowling, and it therefore accompanies the pointing bearing of the viewfinder and the cowling 2 surrounding it.
- the ring 20 carries a sector 21 with conical teeth which meshes with a complementary toothing 22 integral with the stirrup 13.
- the ring 20 carries a peripheral toothing on which meshes a pinion 23 whose rotation is controlled by a motorization M.
- a cover 24 covers the crown 20 and the pinion 23, but these elements are visible in Figure 6 in which the cover 24 is removed.
- the ring 20 pivots about the bearing axis 6 and with respect to the cowling 2. It therefore causes the sector 21 which causes the tilting of the stirrup 13, so pointing in site. It is easy to control the pointing angle in site of the stirrup 13 by an appropriate control of the motorization M. It will be sufficient to provide an optical sensor (not shown) to know the orientation in site of the stirrup 13 , to ensure the servo control of the motorization M to the desired value (and corresponding to the aiming site of the viewfinder disposed in the cowling 2).
- the step 17 is in the vicinity of the upper edge 3c of the window 3;
- the step 17 is in the vicinity of the lower edge 3d of the window 3;
- the bearing 17 is in the middle position halfway from the lower and upper edges of the window 3 (position identical to that of Figure 1).
- the spherical portion 8a of the flap 8 extends more widely on one side of the axis 4 than on the other side.
- the spherical portion 8a of the flap is stopped at a straight edge 25 which is at a distance d from the pivot axis 4.
- the spherical portion 8a which in principle has the pivot axis 4 as the axis of symmetry is therefore truncated of an area at the right edge 25.
- Figures 3a to 3c and 4a to 4c show the positions of the flap and the stirrup 13 for the maximum pointing ( Figures 3a and 4a), the minimum score ( Figures 3c and 4c) and for a median score ( Figures 3b and 4b). ).
- Figure 7 thus shows a flap 8 which carries in the vicinity of its right edge 25 a lug 26 carrying a pin 27.
- This pin 27 is intended to flow in a groove 28 which is arranged on the inner face of the shell 2b of the cowling 2 ( Figure 8).
- the profile of the groove 28 will be easily determined by those skilled in the art by computer-aided design modeling the pivoting of the flap 8 carrying the pin 27.
- FIGS 9a, 9b and 9c show the flap 8 in different positions.
- the cowling 2 has been removed but the location of the groove 28 is shown in these figures.
- Figures 9a and 9c do not show the maximum and minimum pointing angles, but angles that are close to these extreme scores.
- the right edge 25 is substantially vertical and parallel to a side edge of the window.
- the point-in-place corresponds to a pivoting of the viewfinder around an axis of view.
- horizontal pointing 7 and the bearing pointing is done by rotation of the viewfinder around a vertical axis 6.
- the aiming of the line of sight may still be achieved but with combined controls of the rotations around the two axes to give the line of sight 4 a desired orientation with respect to a fixed reference.
- the pointing axes 6 and 7 are perpendicular to each other and the window has its lateral edges arranged in parallel meridian planes to an axis (called deposit) which is the axis rotating the sphere formed by the cover.
- the axis (called site) is an axis perpendicular to this bearing axis.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Viewfinders (AREA)
Abstract
The subject of the invention is a protective device (1) for a vertically orientable viewfinder. This device comprises a cover (2) surrounding the viewfinder and having a longitudinal window (3) delimited by two lateral edges (3a, 3b) allowing the vertical movement (S) of a line of sight (4) of the viewfinder. The device is characterized in that the cover (2) is spherical and in that it has a flap (8) of spherical profile, complementary to that of the cover, and having an opening (9) for the line of sight (4) to pass through, the flap (8) being truncated by a sector and thus having a straight edge (25) disposed in the vicinity of a lateral edge (3a, 3b) of the window (3) for a median aiming position, the flap closing the window (3) and being able to pivot about the line of sight (4), the flap being moved vertically by aiming means such that the opening (9) follows the vertical positioning of the line of sight (4), the device also having means for driving the flap (8) in rotation during vertical aiming, thereby ensuring that the window (3) is closed by the flap for all vertical aiming positions.
Description
Le domaine technique de l'invention est celui des dispositifs de protection pour un viseur orientable en site.The technical field of the invention is that of the protection devices for an orientable viewfinder.
Ces dispositifs ont pour but d’assurer la protection du viseur contre les impacts de projectiles. Ces viseurs équipent le plus souvent un véhicule blindé et ils permettent l’acquisition des coordonnées d’une cible et la conduite d’un tir.These devices are intended to ensure the protection of the viewfinder against the impact of projectiles. These sights are most often fitted to an armored vehicle and they allow the acquisition of the coordinates of a target and the conduct of a shot.
Il est connu de disposer le viseur dans un capotage qui l’entoure et qui comporte une fenêtre autorisant en particulier le débattement en site d’une ligne de visée du viseur.It is known to arrange the viewfinder in a cowling that surrounds it and which has a window allowing in particular the deflection in the field of a line of sight of the viewfinder.
Les brevets EP3123100 et FR2509034 décrivent de tels capotages de protection. Ils présentent l’inconvénient de devoir être ouverts pour permettre l’utilisation du viseur qui est donc faiblement protégé quand il est opérationnel.Patents EP3123100 and FR2509034 describe such protective covers. They have the disadvantage of having to be open to allow the use of the viewfinder which is therefore poorly protected when it is operational.
On connaît également par le brevet US2012/024143 un tourelleau armé qui comporte un viseur orientable en site et en gisement et disposé dans un capotage comportant une fenêtre autorisant en particulier le débattement en site d’une ligne de visée du viseur.US2012 / 024143 also discloses an armed turret which comprises a viewfinder orientable in elevation and location and disposed in a cowling comprising a window allowing in particular the deflection of a line of sight of the viewfinder.
On connaît aussi par le brevet US2491608 une tourelle canon comportant un viseur qui est disposé derrière une fenêtre rectangulaire obturable par des volets plans et coulissants. Le déplacement des volets vers le bas de la fenêtre dégage très largement celle-ci.Also known from US2491608 a gun turret having a viewfinder which is disposed behind a rectangular window closable by flat and sliding shutters. The movement of the shutters towards the bottom of the window releases very largely this one.
Même si on réduit le capotage au minimum nécessaire, il est toujours nécessaire de laisser sur le capotage une fenêtre longitudinale ayant une longueur égale au débattement angulaire maximal de la ligne de visée.Even if the cowling is reduced to the minimum necessary, it is still necessary to leave on the cowling a longitudinal window having a length equal to the maximum angular deflection of the line of sight.
C’est le but de l’invention que de proposer un dispositif de protection pour un viseur orientable en site, dispositif qui assure une protection de niveau supérieur et qui ne laisse dégagée qu’une ouverture ayant la dimension strictement nécessaire pour le viseur, quelle que soit son orientation en site.It is the object of the invention to provide a protection device for a steerable viewfinder in a site, which provides a higher level of protection and which leaves open only an opening having the dimension strictly necessary for the viewfinder, which whatever its orientation in site.
Ainsi l’invention a pour objet un dispositif de protection pour un viseur orientable en site, dispositif comprenant un capotage entourant le viseur et comportant une fenêtre autorisant le débattement en site d’une ligne de visée du viseur dispositif caractérisé en ce que le capotage est sphérique et en ce qu’il comporte un volet à profil sphérique, complémentaire de celui du capotage, et portant une ouverture permettant le passage de la ligne de visée, le volet étant tronqué d’un secteur et présentant ainsi un bord droit disposé au voisinage d’un bord de la fenêtre pour une position de pointage médian, le volet obturant la fenêtre et pouvant pivoter autour de la ligne de visée, le volet étant déplacé en site par des moyens de pointage de telle façon que l’ouverture suive le positionnement en site de la ligne de visée, le dispositif comportant par ailleurs des moyens assurant l’entraînement en rotation du volet lors du pointage en site, assurant ainsi l’obturation de la fenêtre par le volet pour toutes les positions de pointage en site.Thus, the subject of the invention is a protection device for an orientable viewfinder, comprising a casing surrounding the viewfinder and comprising a window allowing the deflection of a line of sight of the device viewfinder, characterized in that the casing is spherical and in that it comprises a spherical flap, complementary to that of the cowling, and carrying an opening for the passage of the line of sight, the flap being truncated by a sector and thus having a straight edge arranged in the vicinity an edge of the window for a median pointing position, the shutter closing the window and pivotable about the line of sight, the shutter being moved in site by pointing means so that the opening follows the positioning in the line of sight, the device further comprising means ensuring the rotation of the shutter during the pointing in site, ensuring ain if shutting the window by the shutter for all pointing positions in site.
Selon un mode particulier de réalisation, les moyens de pointage pourront comprendre une couronne en liaison pivot par rapport à une base du capotage et montée pivotante en gisement autour d’un axe vertical, couronne pouvant être commandée en rotation par un moyen moteur et portant un secteur à denture conique engrenant avec une denture complémentaire solidaire d’un étrier, l’étrier étant lui-même monté pivotant par rapport au capotage autour d’un axe horizontal, le volet étant fixé à l’étrier.According to a particular embodiment, the pointing means may comprise a ring pivotally connected to a base of the cowling and pivotally mounted in a bearing around a vertical axis, which ring can be rotated by a motor means and carrying a conical toothed sector meshing with a complementary toothing integral with a stirrup, the stirrup being itself pivotally mounted relative to the cowling about a horizontal axis, the shutter being fixed to the stirrup.
Selon un mode particulier de réalisation, le volet pourra être fixé pivotant par rapport à l’étrier au niveau de son ouverture, les moyens d’entraînement en rotation du volet comportant un pignon à profil conique solidaire du volet et qui engrène avec une crémaillère solidaire du capotage, la modification du pointage en site de l’étrier entraînant le pivotement du volet.According to a particular embodiment, the flap may be fixed pivotally relative to the stirrup at its opening, the drive means for rotating the shutter comprising a pinion conical profile integral with the shutter and which meshes with a fixed rack of the cowling, the modification of the pointing in site of the stirrup causing the pivoting of the shutter.
Selon un autre mode de réalisation, le volet pourra être fixé pivotant par rapport à l’étrier au niveau de son ouverture, les moyens d’entraînement en rotation du volet comportant un pion solidaire du volet et circulant dans une rainure aménagée dans le capotage, la modification du pointage en site de l’étrier entraînant le pivotement du volet.According to another embodiment, the flap may be fixed pivotally relative to the stirrup at its opening, the drive means for rotating the flap comprising a pin secured to the flap and flowing in a groove formed in the cowling, the modification of the pointing in site of the stirrup causing the pivoting of the shutter.
L’invention sera mieux comprise à la lecture de la description qui va suivre de modes particuliers de réalisation, description faite en référence aux dessins annexés et dans lesquels :The invention will be better understood on reading the following description of particular embodiments, a description given with reference to the accompanying drawings and in which:
En se reportant aux Figures 1 et 2, un dispositif 1 de protection pour un viseur orientable en site, comprend un capotage 2 globalement sphérique qui entoure le viseur et qui comporte une fenêtre 3 longitudinale autorisant le débattement en site (flèche S) d’une ligne de visée 4 du viseur. La fenêtre 3 s’étend le long d’une méridienne de la sphère formée par le capotage 2 et elle est délimitée par deux bords latéraux 3a et 3b parallèles, reliés par un bord supérieur 3c et un bord inférieur 3d. Les bords latéraux 3a,3b sont parallèles à l’axe de gisement 6, ou plus précisément ces bords latéraux sont disposés dans des plans parallèles à l’axe de gisement 6 (plans méridiens du capotage sphérique 2). Les bords inférieur 3d et supérieur 3c sont parallèles à l’axe de site 7, ou plus précisément sont disposés dans des plans parallèles à l’axe de site 7. D’une façon classique, l’axe de site 7 est un axe perpendiculaire à l’axe de gisement 6.Referring to FIGS. 1 and 2, a protection device 1 for an orientable viewfinder in situ, comprises a generally spherical cover 2 which surrounds the viewfinder and which comprises a longitudinal window 3 allowing the deflection in the field (arrow S) of a line of sight 4 of the viewfinder. The window 3 extends along a meridian of the sphere formed by the cowling 2 and is delimited by two parallel lateral edges 3a and 3b, connected by an upper edge 3c and a lower edge 3d. The lateral edges 3a, 3b are parallel to the bearing axis 6, or more precisely these lateral edges are arranged in planes parallel to the bearing axis 6 (meridian planes of the spherical cowling 2). The lower 3d and upper edges 3c are parallel to the elevation axis 7, or more precisely are arranged in planes parallel to the elevation axis 7. In a conventional manner, the elevation axis 7 is a perpendicular axis at the bearing axis 6.
Le viseur est un dispositif optique de type connu et qui n’est pas décrit en détails. Il est enfermé à l’intérieur du capotage 2 qui est globalement sphérique. Ce viseur, dont on a représenté le pied 5 sur les figures, est pivotable en gisement autour de l’axe vertical 6 (ou axe de gisement) et il est orientable en site par pivotement autour d’un axe horizontal 7 (ou axe de site). Les orientations en site et en gisement sont obtenues grâce à des motorisations spécifiques du viseur (non représentées).The viewfinder is an optical device of known type and which is not described in detail. It is enclosed inside the cowling 2 which is globally spherical. This viewfinder, whose foot 5 is shown in the figures, is pivotable in bearing around the vertical axis 6 (or bearing axis) and is pivotally orientable around a horizontal axis 7 (or axis of site). The orientations in site and in the field are obtained thanks to specific motorizations of the viewfinder (not shown).
Ainsi la ligne de visée 4 peut être dirigée suivant différentes directions de l’espace.Thus the line of sight 4 can be directed in different directions of space.
Conformément à l’invention, le capotage 2 est globalement sphérique et il comporte un volet 8 qui a également un profil sphérique complémentaire de celui du capotage.According to the invention, the cowling 2 is generally spherical and it comprises a flap 8 which also has a spherical profile complementary to that of the cowling.
Le volet 8 se trouve à l’intérieur du capotage 2 et il obture la fenêtre 3, assurant ainsi une protection balistique de la fenêtre 3 et du viseur lors du pointage du viseur.The shutter 8 is inside the cowling 2 and it closes the window 3, thus providing ballistic protection of the window 3 and the viewfinder when pointing the viewfinder.
Le volet 8 comporte une ouverture 9 qui permet le passage de la ligne de visée 4. Cette ouverture 9 a la dimension strictement nécessaire pour le viseur.The flap 8 has an opening 9 which allows the passage of the line of sight 4. This opening 9 has the dimension strictly necessary for the viewfinder.
Le capotage est constitué par deux coquilles 2a et 2b sensiblement hémisphériques et liées l’une à l’autre par des brides vissées 11, positionnées le long d’une génératrice (voir la Figure 2).The cowling consists of two substantially hemispherical shells 2a and 2b and connected to each other by screwed flanges 11, positioned along a generator (see Figure 2).
Le capotage 2 est positionné à l’intérieur d’un roulement circulaire 12 qui permet le pivotement en gisement du capotage, d’une façon synchronisée avec celui du viseur lui-même.The cowling 2 is positioned inside a circular bearing 12 which allows the rollover of the cowling in the bearing, in a manner synchronized with that of the viewfinder itself.
Comme on le voit sur les Figures 1 et 2, le capotage 2 est également solidaire d’un étrier 13 qui est monté pivotant par rapport au capotage 2 autour de l’axe horizontal 7.As seen in Figures 1 and 2, the cowling 2 is also integral with a stirrup 13 which is pivotally mounted relative to the cowling 2 about the horizontal axis 7.
Le montage de l’étrier 13 est réalisé à l’aide de roulements 14 qui sont positionnés sur deux tourillons 15 solidaires du capotage 2 et qui reçoivent des bagues 16 solidaires des deux extrémités de l’étrier 13.The mounting of the stirrup 13 is carried out using bearings 14 which are positioned on two journals 15 integral with the cowling 2 and which receive rings 16 integral with both ends of the stirrup 13.
Ainsi tout pivotement en gisement du capotage 2 entraîne également l’étrier 13.Thus any pivoting in the bearing of the cowling 2 also causes the stirrup 13.
L’étrier 13 porte le volet 8 qui lui est fixé au niveau de l’ouverture 9.The stirrup 13 carries the shutter 8 which is fixed to it at the level of the opening 9.
Comme on le voit plus particulièrement aux Figures 5a, 5b et 5c, le volet 8 comporte en effet une partie 8a à profil sphérique sur laquelle est fixée un tube cylindrique 8b qui matérialise l’ouverture 9.As seen more particularly in FIGS. 5a, 5b and 5c, the flap 8 comprises in fact a spherical-shaped part 8a on which is fixed a cylindrical tube 8b which materializes the opening 9.
C’est le tube 8b qui se loge dans un pallier lisse 17 porté par l’étrier 13. Le tube 8b porte par ailleurs un pignon conique 18 (voir aussi la Figure 6) (par exemple collé ou soudé au tube 8b). Ce pignon conique 18 engrène sur une crémaillère à profil conique 19 qui a également une forme générale circulaire et se trouve fixée au capotage sphérique 2 le long de la fenêtre 3.It is the tube 8b which is housed in a smooth bearing 17 carried by the stirrup 13. The tube 8b also carries a conical pinion 18 (see also Figure 6) (for example glued or welded to the tube 8b). This conical pinion 18 meshes with a conical-shaped rack 19 which also has a generally circular shape and is fixed to the spherical cowling 2 along the window 3.
Ainsi lorsque l’orientation en site de l’étrier 13 est modifiée, le pignon 18 engrène sur la crémaillère 19 et cette dernière provoque alors le pivotement du tube 8b et du volet 8 autour de la ligne de visée 4.Thus, when the orientation in site of the stirrup 13 is modified, the pinion 18 meshes with the rack 19 and the latter then causes the tube 8b and the flap 8 to pivot about the line of sight 4.
Le pointage en site de l’étrier 13 est commandé par des moyens de pointage qui comprennent une couronne 20 en liaison pivot par rapport à une base du capotage 2 (c’est-à-dire pouvant pivoter dans une certaine mesure par rapport au capotage 2).The pointing in site of the stirrup 13 is controlled by pointing means which comprise a ring 20 in pivot connection relative to a base of the cowling 2 (that is to say, able to pivot to a certain extent with respect to the cowling 2).
Cette couronne 20 peut par ailleurs pivoter librement par rapport au roulement circulaire 12 dont une bague intérieure est solidaire du capotage, et elle accompagne donc le pointage en gisement du viseur et du capotage 2 qui l’entoure.This ring 20 can also rotate freely relative to the circular bearing 12, an inner ring is integral with the cowling, and it therefore accompanies the pointing bearing of the viewfinder and the cowling 2 surrounding it.
La couronne 20 porte un secteur 21 à denture conique qui engrène avec une denture complémentaire 22 solidaire de l’étrier 13.The ring 20 carries a sector 21 with conical teeth which meshes with a complementary toothing 22 integral with the stirrup 13.
Par ailleurs la couronne 20 porte une denture périphérique sur laquelle engrène un pignon 23 dont la rotation est commandée par une motorisation M.Furthermore, the ring 20 carries a peripheral toothing on which meshes a pinion 23 whose rotation is controlled by a motorization M.
Un capot 24 recouvre la couronne 20 et le pignon 23, mais ces éléments sont visibles sur la Figure 6 dans laquelle le capot 24 est retiré.A cover 24 covers the crown 20 and the pinion 23, but these elements are visible in Figure 6 in which the cover 24 is removed.
Lorsque le viseur et son capotage 2 sont pivotés en gisement, la motorisation M est inactive et le pignon 23 tourne librement. Le secteur 21 suit donc le pointage en gisement entraîné par le capotage 2, la couronne 20 tournant librement.When the viewfinder and its cowling 2 are pivoted in the bearing, the motorization M is inactive and the pinion 23 rotates freely. The sector 21 therefore follows the bearing pointing driven by the cowling 2, the ring 20 rotating freely.
Lorsque la motorisation M est actionnée, la couronne 20 pivote autour de l’axe de gisement 6 et par rapport au capotage 2. Elle entraîne donc le secteur 21 qui provoque le basculement de l’étrier 13, donc le pointage en site. Il est aisé de maîtriser l’angle de pointage en site de l’étrier 13 par une commande appropriée de la motorisation M. Il suffira de prévoir un capteur optique (non représenté) permettant de connaître l’orientation en site de l’étrier 13, pour assurer l’asservissement de la commande de la motorisation M sur la valeur souhaitée (et correspondant au pointage en site du viseur disposé dans le capotage 2).When the motorization M is actuated, the ring 20 pivots about the bearing axis 6 and with respect to the cowling 2. It therefore causes the sector 21 which causes the tilting of the stirrup 13, so pointing in site. It is easy to control the pointing angle in site of the stirrup 13 by an appropriate control of the motorization M. It will be sufficient to provide an optical sensor (not shown) to know the orientation in site of the stirrup 13 , to ensure the servo control of the motorization M to the desired value (and corresponding to the aiming site of the viewfinder disposed in the cowling 2).
Comme cela a été précisé précédemment, le pivotement du volet 8 est obtenu automatiquement en liaison avec le pointage en site de l’étrier 13.As has been previously stated, the pivoting of the shutter 8 is obtained automatically in connection with the pointing in site of the stirrup 13.
Le problème lié à l’obturation de la fenêtre 3 par le volet se comprend aisément en considérant les figures 3a à 3c et 4a à 4c.The problem related to the shutter of the window 3 by the flap is easily understood by considering Figures 3a to 3c and 4a to 4c.
La fenêtre 3 n’est pas visible sur ces figures car le capotage 2 est retiré. Il suffit de considérer parallèlement la figure 1 et de noter que : The window 3 is not visible in these figures because the cowling 2 is removed. Just look at Figure 1 in parallel and note that:
pour les figures 3a et 4a, le pallier 17 se trouve au voisinage du bord supérieur 3c de la fenêtre 3 ; for FIGS. 3a and 4a, the step 17 is in the vicinity of the upper edge 3c of the window 3;
pour les figures 3c et 4c, le pallier 17 se trouve au voisinage du bord inférieur 3d de la fenêtre 3 ; for FIGS. 3c and 4c, the step 17 is in the vicinity of the lower edge 3d of the window 3;
pour les figures 3b et 4b, le pallier 17 est en position médiane à mi-distance des bords inférieur et supérieur de la fenêtre 3 (position identique à celle de la figure 1).for Figures 3b and 4b, the bearing 17 is in the middle position halfway from the lower and upper edges of the window 3 (position identical to that of Figure 1).
Lorsque le pointage en site de l’étrier 13 est à angle minimal (figures 3c et 4c) le pallier lisse 17 est positionné au plus bas de la fenêtre 3 qui est donc très dégagée au-dessus du pallier lisse 17.When the pointing at the site of the stirrup 13 is at a minimum angle (FIGS. 3c and 4c), the smooth abutment 17 is positioned at the lowest point of the window 3, which is therefore very clear above the smooth abutment 17.
Inversement lorsque le pointage en site de l’étrier 13 est à angle maximal (figures 3a et 4a) le pallier lisse 17 est positionné au plus haut de la fenêtre 3 qui est donc très dégagée en dessous du pallier lisse 17.Conversely, when the pointing at the site of the stirrup 13 is at maximum angle (FIGS. 3a and 4a), the smooth abutment 17 is positioned at the top of the window 3, which is therefore very clear below the smooth abutment 17.
Conformément à l’invention pour assurer l’obturation de la fenêtre 3 par le volet 8 dans tous les cas, il est nécessaire de définir un volet sphérique qui ne présente pas de symétrie de rotation autour de son axe de pivotement 4, mais qui au contraire est désaxé par rapport à cet axe de pivotement 4 (ou ligne de visée).According to the invention to ensure the closure of the window 3 by the flap 8 in all cases, it is necessary to define a spherical flap which has no rotation symmetry about its pivot axis 4, but which at contrary is off-axis with respect to this pivot axis 4 (or line of sight).
Ainsi, comme on le voit aux Figures 5a, 5b et 5c, la partie sphérique 8a du volet 8 s’étend plus largement d’un côté de l’axe 4 que de l’autre côté. La partie sphérique 8a du volet est arrêtée au niveau d’un bord droit 25 qui est à une distance d de l’axe de pivotement 4. La partie sphérique 8a qui a en principe l’axe de pivotement 4 comme axe de symétrie se trouve donc tronquée d’un secteur au niveau du bord droit 25.Thus, as seen in Figures 5a, 5b and 5c, the spherical portion 8a of the flap 8 extends more widely on one side of the axis 4 than on the other side. The spherical portion 8a of the flap is stopped at a straight edge 25 which is at a distance d from the pivot axis 4. The spherical portion 8a which in principle has the pivot axis 4 as the axis of symmetry is therefore truncated of an area at the right edge 25.
Ainsi, lorsque le pallier lisse 17 occupe ses positions extrêmes par rapport à la fenêtre 3, il est possible de positionner le volet 9 avec sa partie tronquée (bord droit 25) au voisinage du bord inférieur ou supérieur de la fenêtre 3. La partie non tronquée du volet 8 peut alors obturer toute la fenêtre 3.Thus, when the smooth bearing 17 occupies its extreme positions with respect to the window 3, it is possible to position the flap 9 with its truncated portion (right edge 25) in the vicinity of the lower or upper edge of the window 3. The non truncated shutter 8 can then close the entire window 3.
On assure alors dans tous les cas l’obturation de toute la fenêtre 3 sans que des interférences mécaniques n’interviennent au niveau des positions extrêmes et pour une masse de volet minimale.In this case, it is ensured in all cases that the entire window 3 is sealed without any mechanical interference occurring at the extreme positions and for a minimum flap mass.
Les Figures 3a à 3c et 4a à 4c montrent les positions du volet et de l’étrier 13 pour le pointage maximum (Figures 3a et 4a), le pointage minimum (Figures 3c et 4c) et pour un pointage médian (Figures 3b et 4b).Figures 3a to 3c and 4a to 4c show the positions of the flap and the stirrup 13 for the maximum pointing (Figures 3a and 4a), the minimum score (Figures 3c and 4c) and for a median score (Figures 3b and 4b). ).
On remarque que, lorsque l’étrier 13 se trouve dans la position du pointage médian (figures 3b et 4b), le bord droit 25 du volet 8 est vertical et se trouve alors voisin d’un bord latéral 3a de la fenêtre 3 (la figure 1 montre aussi cette position de pointage médian).Note that when the stirrup 13 is in the position of the median pointing (FIGS. 3b and 4b), the right edge 25 of the shutter 8 is vertical and is then close to a lateral edge 3a of the window 3 (FIG. Figure 1 also shows this median pointing position).
Lorsque l’étrier 13 se trouve dans la position du pointage minimum (figures 3c et 4c), le volet a pivoté dans le sens inverse des aiguilles d’une montre et le bord droit 25 du volet 8 est horizontal et se trouve voisin du bord inférieur 3d de la fenêtre 3.When the stirrup 13 is in the position of the minimum pointing (FIGS. 3c and 4c), the flap has rotated counterclockwise and the right edge 25 of the flap 8 is horizontal and is close to the edge. lower 3d of the window 3.
Enfin, lorsque l’étrier 13 se trouve dans la position du pointage maximal (figures 3a et 4a), le volet a pivoté dans le sens des aiguilles d’une montre et le bord droit 25 du volet 8 est horizontal et se trouve voisin du bord supérieur 3c de la fenêtre 3.Finally, when the stirrup 13 is in the position of the maximum pointing (FIGS. 3a and 4a), the flap has pivoted in a clockwise direction and the right edge 25 of the flap 8 is horizontal and is close to the top edge 3c of the window 3.
Il est possible d’assurer l’entraînement en rotation du volet par d’autres moyens.It is possible to ensure the rotation of the shutter by other means.
La Figure 7 montre ainsi un volet 8 qui porte au voisinage de son bord droit 25 une patte 26 portant un pion 27. Ce pion 27 est destiné à circuler dans une rainure 28 qui est aménagée sur la face interne de la coquille 2b du capotage 2 (Figure 8). Le profil de la rainure 28 sera déterminé aisément par l’Homme du Métier en modélisant par conception assistée par ordinateur le pivotement du volet 8 portant le pion 27.Figure 7 thus shows a flap 8 which carries in the vicinity of its right edge 25 a lug 26 carrying a pin 27. This pin 27 is intended to flow in a groove 28 which is arranged on the inner face of the shell 2b of the cowling 2 (Figure 8). The profile of the groove 28 will be easily determined by those skilled in the art by computer-aided design modeling the pivoting of the flap 8 carrying the pin 27.
Les Figures 9a, 9b et 9c montrent le volet 8 dans différentes positions. Le capotage 2 a été retiré mais la localisation de la rainure 28 est représentée sur ces figures.Figures 9a, 9b and 9c show the flap 8 in different positions. The cowling 2 has been removed but the location of the groove 28 is shown in these figures.
Bien entendu le volet 8 est toujours monté pivotant par rapport à un étrier 13 (non représenté sur ces figures) qui permet le pointage en site de l’ouverture 9. Le montage et la commande de l’étrier sont identiques à ce qui a été décrit en référence aux Figures 1 et 2.Of course the flap 8 is always pivotally mounted relative to a stirrup 13 (not shown in these figures) which allows the pointing in the opening site 9. The assembly and control of the stirrup are identical to what has been described with reference to Figures 1 and 2.
On remarque que, lorsque le pointage en site est modifié, la circulation du pion 27 dans sa rainure 28 entraîne le pivotement du volet 8. L’amplitude du pivotement est la même que pour le mode de réalisation précédent et le bord droit 25 du volet s’approche du bord inférieur de la fenêtre lorsque le pointage avoisine l’angle de pointage minimum (Figure 9a).Note that when the pointing in site is changed, the movement of the pin 27 in its groove 28 causes the pivoting of the flap 8. The amplitude of the pivot is the same as for the previous embodiment and the right edge 25 of the flap approaching the lower edge of the window when pointing is close to the minimum pointing angle (Figure 9a).
Inversement le bord droit 25 du volet s’approche du bord supérieur de la fenêtre lorsque le pointage avoisine l’angle de pointage maximal (Figure 9c).Conversely, the right edge 25 of the flap approaches the upper edge of the window when the score approaches the maximum pointing angle (Figure 9c).
On notera que les Figures 9a et 9c ne montrent pas les angles de pointages maximum et minimum mais des angles voisins de ces pointages extrêmes.It should be noted that Figures 9a and 9c do not show the maximum and minimum pointing angles, but angles that are close to these extreme scores.
Enfin lorsque le pointage est médian (Figure 9b), le bord droit 25 est sensiblement vertical et parallèle à un bord latéral de la fenêtre.Finally, when the pointing is median (Figure 9b), the right edge 25 is substantially vertical and parallel to a side edge of the window.
Les modes de réalisation précédents ont été décrits en faisant référence à un pointage en site et à un pointage en gisement de la ligne de visée 4. D’une façon classique le pointage en site correspond à un pivotement du viseur autour d’un axe de pointage horizontal 7 et le pointage en gisement se fait par rotation du viseur autour d’un axe vertical 6. Il est bien entendu possible de positionner le viseur avec des orientations des axes de site 7 et de gisement 6 qui ne sont plus respectivement horizontales et verticales. Le pointage de la ligne de visée pourra toujours être réalisé mais avec des commandes combinées des rotations autour des deux axes pour donner à la ligne de visée 4 une orientation souhaitée par rapport à un repère fixe.The foregoing embodiments have been described with reference to a point-in-point and a pointing-in-line of the line of sight 4. In a conventional manner, the point-in-place corresponds to a pivoting of the viewfinder around an axis of view. horizontal pointing 7 and the bearing pointing is done by rotation of the viewfinder around a vertical axis 6. It is of course possible to position the viewfinder with orientations of the site axes 7 and bearing 6 which are no longer respectively horizontal and vertical. The aiming of the line of sight may still be achieved but with combined controls of the rotations around the two axes to give the line of sight 4 a desired orientation with respect to a fixed reference.
Ce qui est important pour que l’invention puisse être mise en œuvre c’est que les axes de pointages 6 et 7 soient bien perpendiculaires l’un à l’autre et que la fenêtre ait ses bords latéraux disposés dans des plans méridiens parallèles à un axe (dit de gisement) qui est l’axe faisant pivoter la sphère formée par le capot. L’axe (dit de site) étant un axe perpendiculaire à cet axe de gisement.What is important for the invention to be implemented is that the pointing axes 6 and 7 are perpendicular to each other and the window has its lateral edges arranged in parallel meridian planes to an axis (called deposit) which is the axis rotating the sphere formed by the cover. The axis (called site) is an axis perpendicular to this bearing axis.
Claims (4)
- Dispositif de protection (1) pour un viseur orientable en site, dispositif comprenant un capotage (2) entourant le viseur et comportant une fenêtre (3) longitudinale délimitée par deux bords latéraux parallèles (3a,3b) autorisant le débattement en site d’une ligne de visée (4) du viseur, dispositif caractérisé en ce que le capotage (2) est sphérique et en ce qu’il comporte un volet (8) à profil sphérique, complémentaire de celui du capotage, et portant une ouverture (9) permettant le passage de la ligne de visée (4), le volet (8) étant tronqué d’un secteur et présentant ainsi un bord droit (25) disposé au voisinage d’un bord latéral (3a,3b) de la fenêtre (3) pour une position de pointage médian, le volet (8) obturant la fenêtre et pouvant pivoter autour de la ligne de visée (4), le volet (8) étant déplacé en site par des moyens de pointage de telle façon que l’ouverture (9) suive le positionnement en site de la ligne de visée (4), le dispositif comportant par ailleurs des moyens assurant l’entraînement en rotation du volet (8) lors du pointage en site, assurant ainsi l’obturation de la fenêtre (3) par le volet (8) pour toutes les positions de pointage en site.Protective device (1) for a steerable viewfinder, device comprising a cowling (2) surrounding the viewfinder and comprising a longitudinal window (3) delimited by two parallel lateral edges (3a, 3b) allowing the deflection in a site of a line of sight (4) of the sight, device characterized in that the cowling (2) is spherical and in that it comprises a flap (8) with a spherical profile, complementary to that of the cowling, and carrying an opening (9) allowing the passage of the line of sight (4), the flap (8) being truncated by a sector and thus having a straight edge (25) disposed in the vicinity of a lateral edge (3a, 3b) of the window (3). ) for a median pointing position, the flap (8) closing the window and pivotable about the line of sight (4), the flap (8) being moved in elevation by pointing means so that the opening (9) follows the line positioning of the line of sight (4), the device comprising pa r elsewhere means ensuring the drive in rotation of the flap (8) during the pointing in site, thus ensuring the closure of the window (3) by the flap (8) for all pointing positions in site.
- Dispositif de protection selon la revendication 1, caractérisé en ce que les moyens de pointage comprennent une couronne (20) en liaison pivot par rapport à une base du capotage (2) et montée pivotante en gisement autour d’un axe vertical (6), couronne pouvant être commandée en rotation par un moyen moteur (M) et portant un secteur (21) à denture conique engrenant avec une denture complémentaire (22) solidaire d’un étrier (13), l’étrier étant lui-même monté pivotant par rapport au capotage (2) autour d’un axe horizontal (7), le volet (8) étant fixé à l’étrier (13).Protective device according to claim 1, characterized in that the pointing means comprise a ring (20) pivotably connected to a base of the cowling (2) and pivotally mounted in a bearing around a vertical axis (6), crown that can be rotated by a motor means (M) and carrying a sector (21) with conical teeth meshing with a complementary toothing (22) integral with a stirrup (13), the stirrup being itself pivotally mounted by relative to the cowling (2) about a horizontal axis (7), the flap (8) being attached to the yoke (13).
- Dispositif de protection selon la revendication 2, caractérisé en ce que le volet (8) est fixé pivotant par rapport à l’étrier (13) au niveau de son ouverture (9), les moyens d’entraînement en rotation du volet comportant un pignon (18) à profil conique solidaire du volet (8) et qui engrène avec une crémaillère (19) solidaire du capotage (2), la modification du pointage en site de l’étrier (13) entraînant le pivotement du volet (8).Protective device according to claim 2, characterized in that the flap (8) is pivotally attached relative to the stirrup (13) at its opening (9), the drive means for rotating the shutter comprising a pinion (18) conical profile integral with the flap (8) and which meshes with a rack (19) integral with the cowling (2), the modification of the pointing in site of the stirrup (13) causing the pivoting of the flap (8).
- Dispositif de protection selon la revendication 2, caractérisé en ce que le volet (8) est fixé pivotant par rapport à l’étrier (13) au niveau de son ouverture (9), les moyens d’entraînement en rotation du volet comportant un pion (27) solidaire du volet (8) et circulant dans une rainure (28) aménagée dans le capotage (2), la modification du pointage en site de l’étrier (13) entraînant le pivotement du volet (8).Protective device according to claim 2, characterized in that the flap (8) is pivotally attached relative to the stirrup (13) at its opening (9), the means for rotating the shutter comprising a pion (27) secured to the flap (8) and flowing in a groove (28) formed in the cowling (2), the modification of the pointing in site of the stirrup (13) causing the pivoting of the flap (8).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19712037.1A EP3755966B1 (en) | 2018-02-23 | 2019-02-22 | Protective device for an orientable viewfinder |
ES19712037T ES2919625T3 (en) | 2018-02-23 | 2019-02-22 | Protection device for a viewfinder adjustable in elevation |
PL19712037T PL3755966T3 (en) | 2018-02-23 | 2019-02-22 | Protective device for an orientable viewfinder |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1800167A FR3078397B1 (en) | 2018-02-23 | 2018-02-23 | PROTECTION DEVICE FOR AN ORIENTABLE SIGHT ON SITE |
FR18/00167 | 2018-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019162896A1 true WO2019162896A1 (en) | 2019-08-29 |
Family
ID=62017461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2019/051458 WO2019162896A1 (en) | 2018-02-23 | 2019-02-22 | Protective device for a vertically orientable viewfinder |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3755966B1 (en) |
ES (1) | ES2919625T3 (en) |
FR (1) | FR3078397B1 (en) |
PL (1) | PL3755966T3 (en) |
WO (1) | WO2019162896A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114029971A (en) * | 2021-10-18 | 2022-02-11 | 上海合时智道科技有限公司 | Shield robot system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2491608A (en) | 1945-04-13 | 1949-12-20 | United Shoe Machinery Corp | Power-operated gun turret and control mechanism therefor |
US2712271A (en) * | 1949-05-07 | 1955-07-05 | Richard E Wabnitz | Adjustable support apparatus |
US4004465A (en) * | 1976-01-20 | 1977-01-25 | The United States Of America As Represented By The Secretary Of The Air Force | Optical window protective shutter mechanism |
FR2509034A1 (en) | 1981-07-03 | 1983-01-07 | Sfim | Periscope sight with slewing head - has cowl with window slewing on base in alignment with periscope optical objective |
US20120024143A1 (en) | 2010-07-27 | 2012-02-02 | Raytheon Company | Weapon Station and Associated Method |
US20150355453A1 (en) * | 2013-01-14 | 2015-12-10 | Krauss-Maffei Wegmann Gmbh & Co.Kg | Protective device for a lens |
EP3123100A1 (en) | 2014-03-28 | 2017-02-01 | Safran Electronics & Defense | Optoelectronic viewfinder with modular shielding |
-
2018
- 2018-02-23 FR FR1800167A patent/FR3078397B1/en active Active
-
2019
- 2019-02-22 EP EP19712037.1A patent/EP3755966B1/en active Active
- 2019-02-22 ES ES19712037T patent/ES2919625T3/en active Active
- 2019-02-22 WO PCT/IB2019/051458 patent/WO2019162896A1/en unknown
- 2019-02-22 PL PL19712037T patent/PL3755966T3/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2491608A (en) | 1945-04-13 | 1949-12-20 | United Shoe Machinery Corp | Power-operated gun turret and control mechanism therefor |
US2712271A (en) * | 1949-05-07 | 1955-07-05 | Richard E Wabnitz | Adjustable support apparatus |
US4004465A (en) * | 1976-01-20 | 1977-01-25 | The United States Of America As Represented By The Secretary Of The Air Force | Optical window protective shutter mechanism |
FR2509034A1 (en) | 1981-07-03 | 1983-01-07 | Sfim | Periscope sight with slewing head - has cowl with window slewing on base in alignment with periscope optical objective |
US20120024143A1 (en) | 2010-07-27 | 2012-02-02 | Raytheon Company | Weapon Station and Associated Method |
US20150355453A1 (en) * | 2013-01-14 | 2015-12-10 | Krauss-Maffei Wegmann Gmbh & Co.Kg | Protective device for a lens |
EP3123100A1 (en) | 2014-03-28 | 2017-02-01 | Safran Electronics & Defense | Optoelectronic viewfinder with modular shielding |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114029971A (en) * | 2021-10-18 | 2022-02-11 | 上海合时智道科技有限公司 | Shield robot system |
Also Published As
Publication number | Publication date |
---|---|
EP3755966A1 (en) | 2020-12-30 |
PL3755966T3 (en) | 2022-06-13 |
FR3078397A1 (en) | 2019-08-30 |
EP3755966B1 (en) | 2022-03-30 |
ES2919625T3 (en) | 2022-07-27 |
FR3078397B1 (en) | 2021-05-07 |
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