EP3755966B1 - Protective device for an orientable viewfinder - Google Patents
Protective device for an orientable viewfinder Download PDFInfo
- Publication number
- EP3755966B1 EP3755966B1 EP19712037.1A EP19712037A EP3755966B1 EP 3755966 B1 EP3755966 B1 EP 3755966B1 EP 19712037 A EP19712037 A EP 19712037A EP 3755966 B1 EP3755966 B1 EP 3755966B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flap
- elevation
- sight
- window
- bracket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000001681 protective effect Effects 0.000 title claims description 9
- 230000000295 complement effect Effects 0.000 claims description 6
- 238000013459 approach Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000011960 computer-aided design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- 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 protective devices for an elevation-orientable sight.
- These devices are to ensure the protection of the viewfinder against the impacts of projectiles.
- These sights most often equip 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 which surrounds it and which includes a window in particular allowing movement in elevation of a line of sight of the viewfinder.
- Licences EP3123100 and FR2509034 describe such protective covers. They have the disadvantage of having to be opened to allow the use of the viewfinder which is therefore poorly protected when it is operational.
- the subject of the invention is a protective device for a viewfinder that can be tilted in elevation, device comprising a cowling surrounding the viewfinder and comprising a window allowing movement in elevation of a line of sight of the viewfinder, device characterized in that the cowling is spherical and in that it comprises a flap with a spherical profile, complementary to that of the cowling, and carrying an opening allowing 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 being able to pivot around the line of sight, the shutter being moved in elevation by pointing means in such a way that the opening follows the positioning in elevation of the line of sight, the device also comprising means ensuring the rotational drive of the shutter during the aiming in elevation, thus ensuring the shutter of the window by the shutter for all the elevation aiming positions.
- the pointing means may comprise a crown in pivot connection with respect to a base of the cowling and pivotally mounted in bearing around a vertical axis, crown being able to be controlled in rotation by a motor means and carrying a sector with conical teeth meshing with a complementary set of teeth integral with a stirrup, the stirrup itself being pivotally mounted with respect to the cowling around a horizontal axis, the flap being fixed to the stirrup.
- the flap may be pivotally fixed with respect to the stirrup at the level of its opening, the means for driving the flap in rotation comprising a pinion with a conical profile integral with the flap and which meshes with a rack integral of the cowling, the modification of the pointing in elevation of the stirrup causing the pivoting of the flap.
- the flap may be pivotally fixed relative to the stirrup at the level of its opening, the means for driving the flap in rotation comprising a pin integral with the flap and circulating in a groove provided in the cowling, the modification of the pointing in elevation of the stirrup causing the pivoting of the flap.
- a protection device 1 for a viewfinder that can be tilted in elevation, comprises a globally spherical cowling 2 which surrounds the viewfinder and which comprises a longitudinal window 3 allowing movement in elevation (arrow S) of a line of sight 4 of the viewfinder.
- Window 3 extends along a meridian of the sphere formed by the cowling 2 and it is delimited by two parallel side edges 3a and 3b, connected by an upper edge 3c and a lower edge 3d.
- the side edges 3a, 3b are parallel to the bearing axis 6, or more precisely these side edges are arranged in planes parallel to the bearing axis 6 (meridian planes of the spherical cowling 2).
- the lower 3d and upper 3c edges 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 an axis perpendicular to bearing axis 6.
- the viewfinder is an optical device of known type which is not described in detail. It is enclosed inside the cowling 2 which is globally spherical. This viewfinder, whose foot 5 has been shown in the figures, is pivotable in bearing around the vertical axis 6 (or bearing axis) and it is orientable in elevation by pivoting about a horizontal axis 7 (or bearing axis). site). The orientations in elevation and in bearing are obtained thanks to specific motorizations of the viewfinder (not shown).
- the line of sight 4 can be directed along different directions in 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 flap 8 is located inside the cowling 2 and it closes off the window 3, thus ensuring ballistic protection of the window 3 and of the viewfinder when aiming the viewfinder.
- the shutter 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 is constituted by two substantially hemispherical shells 2a and 2b and linked to each other by screwed flanges 11, positioned along a generatrix (see the Figure 2 ).
- the cowling 2 is positioned inside a circular bearing 12 which allows the pivoting in bearing of the cowling, in a manner synchronized with that of the viewfinder itself.
- the cowling 2 is also integral with a bracket 13 which is pivotally mounted with respect to the cowling 2 around 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 the two ends of the stirrup 13.
- the stirrup 13 carries the flap 8 which is fixed to it at the level of the opening 9.
- the shutter 8 indeed comprises a part 8a with a spherical profile 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 bevel pinion 18 (see also the Figure 6 ) (for example glued or welded to tube 8b).
- This conical pinion 18 meshes with a rack with a conical profile 19 which also has a generally circular shape and is fixed to the spherical cowling 2 along the window 3.
- Pointing in elevation of the stirrup 13 is controlled by pointing means which comprise a crown 20 in pivot connection with respect 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 crown 20 can moreover pivot freely with respect to the circular bearing 12, an inner ring of which is fixed to the cowling, and it therefore accompanies the aiming in bearing of the viewfinder and of the cowling 2 which surrounds it.
- Crown 20 carries a sector 21 with conical teeth which meshes with complementary teeth 22 integral with stirrup 13.
- crown 20 carries peripheral toothing on which a pinion 23 meshes, the rotation of which is controlled by a motorization M.
- a cover 24 covers crown 20 and pinion 23, but these elements are visible on the Figure 6 in which the cover 24 is removed.
- the crown 20 pivots around the bearing axis 6 and relative to the cowling 2. It therefore drives the sector 21 which causes the tilting of the stirrup 13, therefore the aiming in elevation. It is easy to control the pointing angle in elevation of the stirrup 13 by an appropriate control of the motorization M. It will suffice to provide an optical sensor (not shown) making it possible to know the orientation in elevation of the stirrup 13 , to ensure the servo control of the motorization M on the desired value (and corresponding to the aiming in elevation of the viewfinder disposed in the cowling 2).
- the spherical part 8a of the flap 8 extends more widely on one side of the axis 4 than on the other side.
- the spherical part 8a of the flap is stopped at a straight edge 25 which is at a distance d from the pivot axis 4.
- the spherical part 8a which in principle has the pivot axis 4 as its axis of symmetry is therefore truncated by a sector at the level of the right edge 25.
- FIGs 3a to 3c and 4a to 4c show the positions of the flap and the caliper 13 for the maximum pointing ( Figures 3a and 4a ), the minimum score ( Figure 3c and 4c ) and for a median score ( Figure 3b and 4b ).
- the shutter When the caliper 13 is in the minimum pointing position ( figure 3c and 4c ), the shutter has pivoted in the anti-clockwise direction and the right edge 25 of the shutter 8 is horizontal and is close to the lower edge 3d of the window 3.
- the Picture 7 thus shows a flap 8 which carries near its right edge 25 a lug 26 carrying a pin 27.
- This pin 27 is intended to circulate in a groove 28 which is arranged on the internal face of the shell 2b of the cowling 2 ( Picture 8 ).
- the profile of the groove 28 will be easily determined by the person skilled in the art by modeling by computer-aided design the pivoting of the flap 8 carrying the pin 27.
- FIGS 9a, 9b and 9c show flap 8 in different positions.
- the cowling 2 has been removed but the location of the groove 28 is shown in these figures.
- the straight edge 25 is substantially vertical and parallel to a side edge of the window.
- pointing in elevation corresponds to a pivoting of the viewfinder around an axis of horizontal pointing 7 and pointing in bearing is done by rotation of the sight around a vertical axis 6. It is of course possible to position the sight with orientations of the axes of site 7 and bearing 6 which are no longer respectively horizontal and vertical.
- the aiming of the line of sight can always be carried out but with combined commands 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 that the window has its side edges arranged in meridian planes parallel to an axis (called bearing) which is the axis causing the sphere formed by the cover to pivot.
- the axis (known as elevation) being an axis perpendicular to this bearing axis.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Viewfinders (AREA)
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 protective devices for an elevation-orientable sight.
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.The purpose of these devices is to ensure the protection of the viewfinder against the impacts of projectiles. These sights most often equip 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 which surrounds it and which includes a window in particular allowing movement in elevation of a line of sight of the viewfinder.
Les brevets
On connaît également par le brevet
On connaît aussi par le brevet
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 displacement 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 propose a protective device for a viewfinder that can be tilted in elevation, a device which provides protection of a higher level and which leaves free only an opening having the dimension strictly necessary for the viewfinder, whatever regardless of its site orientation.
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 protective device for a viewfinder that can be tilted in elevation, device comprising a cowling surrounding the viewfinder and comprising a window allowing movement in elevation of a line of sight of the viewfinder, device characterized in that the cowling is spherical and in that it comprises a flap with a spherical profile, complementary to that of the cowling, and carrying an opening allowing 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 being able to pivot around the line of sight, the shutter being moved in elevation by pointing means in such a way that the opening follows the positioning in elevation of the line of sight, the device also comprising means ensuring the rotational drive of the shutter during the aiming in elevation, thus ensuring the shutter of the window by the shutter for all the elevation aiming positions.
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 crown in pivot connection with respect to a base of the cowling and pivotally mounted in bearing around a vertical axis, crown being able to be controlled in rotation by a motor means and carrying a sector with conical teeth meshing with a complementary set of teeth integral with a stirrup, the stirrup itself being pivotally mounted with respect to the cowling around a horizontal axis, the flap 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 pivotally fixed with respect to the stirrup at the level of its opening, the means for driving the flap in rotation comprising a pinion with a conical profile integral with the flap and which meshes with a rack integral of the cowling, the modification of the pointing in elevation of the stirrup causing the pivoting of the flap.
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 pivotally fixed relative to the stirrup at the level of its opening, the means for driving the flap in rotation comprising a pin integral with the flap and circulating in a groove provided in the cowling, the modification of the pointing in elevation of the stirrup causing the pivoting of the flap.
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 :
- [
fig.1 ]
: vue en perspective avant d'un mode de réalisation du dispositif de protection selon l'invention ; - [
fig.2 ]
: vue en perspective arrière d'un mode de réalisation du dispositif de protection selon l'invention ; - [
fig.3a ]
: vue du dispositif, capotage retiré, montrant une première variation de pointage en site du viseur et le mouvement associé du volet ; - [
fig.3b ]
: vue analogue à laFigure 3a , montrant une deuxième variation de pointage en site du viseur et le mouvement associé du volet ; - [
fig.3c ]
: vue analogue à laFigure 3a , montrant une troisième variation de pointage en site du viseur et le mouvement associé du volet ; - [
fig.4a ]
: vue du dispositif, capotage retiré et en perspective avant, montrant une première variation de pointage en site du viseur et le mouvement associé du volet ; - [
fig.4b ]
: vue analogue à laFigure 4a , montrant une deuxième variation de pointage en site du viseur et le mouvement associé du volet ; - [
fig.4c ]
: vue analogue à laFigure 4a , montrant une troisième variation de pointage en site du viseur et le mouvement associé du volet ; - [
fig.5a ]
: vue en perspective sous un premier angle du volet seul ; - [
fig.5b ]
: vue en perspective sous un deuxième angle du volet seul ; - [
fig.5c ]
: vue en perspective sous un troisième angle du volet seul ; - [
fig.6 ]
: vue de détail montrant l'entraînement du volet ; - [
fig.7 ]
: vue d'un volet seul selon un second mode de réalisation ; - [
fig.8 ]
: vue d'une partie du capotage destiné à coopérer avec le volet selon le second mode de réalisation ; - [
fig.9a ]
: vue du dispositif, capotage retiré et en perspective avant, montrant une première variation de pointage en site du viseur et le mouvement associé du volet en liaison avec la rainure du capotage selon le second mode de réalisation ; - [
fig.9b ]
: vue analogue à laFigure 9a , montrant une deuxième variation de pointage en site du viseur et le mouvement associé du volet en liaison avec la rainure du capotage selon le second mode de réalisation ; et - [
fig.9c ]
: vue analogue à laFigure 9a , montrant une troisième variation de pointage en site du viseur et le mouvement associé du volet en liaison avec la rainure du capotage selon le second mode de réalisation.
- [
fig.1 ]
: front perspective view of an embodiment of the protection device according to the invention; - [
fig.2 ]
: rear perspective view of an embodiment of the protection device according to the invention; - [
fig.3a ]
: view of the device, cowling removed, showing a first elevation variation of the viewfinder and the associated movement of the shutter; - [
fig.3b ]
: view analogous toPicture 3a , showing a second elevation variation of the viewfinder and the associated movement of the shutter; - [
fig.3c ]
: view analogous toPicture 3a , showing a third elevation variation of the viewfinder and the associated movement of the flap; - [
fig.4a ]
: view of the device, cowling removed and in front perspective, showing a first elevation variation of the viewfinder and the associated movement of the flap; - [
fig.4b ]
: view analogous toPicture 4a , showing a second elevation variation of the viewfinder and the associated movement of the flap; - [
fig.4c ]
: view analogous toPicture 4a , showing a third elevation variation of the viewfinder and the associated movement of the shutter; - [
fig.5a ]
: perspective view from a first angle of the shutter alone; - [
fig.5b ]
: perspective view from a second angle of the shutter alone; - [
fig.5c ]
: perspective view from a third angle of the shutter alone; - [
fig.6 ]
: detail view showing the flap drive; - [
fig.7 ]
: view of a single flap according to a second embodiment; - [
fig.8 ]
: view of a part of the cowling intended to cooperate with the flap according to the second embodiment; - [
fig.9a ]
: view of the device, cowling removed and in front perspective, showing a first elevation variation of the aiming of the viewfinder and the associated movement of the shutter in connection with the groove of the cowling according to the second embodiment; - [
fig.9b ]
: view analogous toPicture 9a , showing a second elevation variation of the viewfinder and the associated movement of the flap in connection with the groove of the cowling according to the second embodiment; and - [
fig.9c ]
: view analogous toPicture 9a , showing a third variation of pointing in elevation of the viewfinder and the associated movement of the shutter in connection with the groove of the cowling according to the second embodiment.
En se reportant aux
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 which is not described in detail. It is enclosed inside the cowling 2 which is globally spherical. This viewfinder, whose foot 5 has been shown in the figures, is pivotable in bearing around the vertical axis 6 (or bearing axis) and it is orientable in elevation by pivoting about a horizontal axis 7 (or bearing axis). site). The orientations in elevation and in bearing 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 along different directions in 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.In accordance with 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 flap 8 is located inside the cowling 2 and it closes off the window 3, thus ensuring ballistic protection of the window 3 and of the viewfinder when aiming 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 shutter 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
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
Comme on le voit sur les
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
Ainsi tout pivotement en gisement du capotage 2 entraîne également l'étrier 13.Thus any pivoting in bearing of the cowling 2 also drives the
L'étrier 13 porte le volet 8 qui lui est fixé au niveau de l'ouverture 9.The
Comme on le voit plus particulièrement aux
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
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 elevation of the
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).Pointing in elevation of the
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 crown 20 can moreover pivot freely with respect to the
La couronne 20 porte un secteur 21 à denture conique qui engrène avec une denture complémentaire 22 solidaire de l'étrier 13.Crown 20 carries a
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, crown 20 carries peripheral toothing on which a pinion 23 meshes, the rotation of which is controlled by a motorization M.
Un capot 24 recouvre la couronne 20 et le pignon 23, mais ces éléments sont visibles sur la
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 bearing, the motorization M is inactive and the pinion 23 rotates freely. The
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 crown 20 pivots around the bearing axis 6 and relative to the cowling 2. It therefore drives the
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 specified above, the pivoting of the flap 8 is obtained automatically in connection with the pointing in elevation of the
Le problème lié à l'obturation de la fenêtre 3 par le volet se comprend aisément en considérant les
La fenêtre 3 n'est pas visible sur ces figures car le capotage 2 est retiré. Il suffit de considérer parallèlement la
- pour les
figures 3a et 4a , le pallier 17 se trouve au voisinage du bord supérieur 3c de la fenêtre 3 ; - pour les
figures 3c et4c , le pallier 17 se trouve au voisinage du bord inférieur 3d de la fenêtre 3 ; - pour les
figures 3b et4b , le pallier 17 est en position médiane à mi-distance des bords inférieur et supérieur de la fenêtre 3 (position identique à celle de lafigure 1 ).
- for the
figures 3a and 4a , thebearing 17 is in the vicinity of the upper edge 3c of the window 3; - for the
figure 3c and4c , thebearing 17 is in the vicinity of the lower edge 3d of window 3; - for the
figure 3b and4b , thebearing 17 is in the middle position halfway between the lower and upper edges of the window 3 (position identical to that of thefigure 1 ).
Lorsque le pointage en site de l'étrier 13 est à angle minimal (
Inversement lorsque le pointage en site de l'étrier 13 est à angle maximal (
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).In accordance with the invention, to ensure that the window 3 is closed by the shutter 8 in all cases, it is necessary to define a spherical shutter which does not have rotational symmetry around its pivot axis 4, but which at the contrary is offset with respect to this pivot axis 4 (or line of sight).
Ainsi, comme on le voit aux
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
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 all cases, the sealing of the entire window 3 is then ensured without mechanical interference occurring at the extreme positions and for a minimum shutter mass.
Les
On remarque que, lorsque l'étrier 13 se trouve dans la position du pointage médian (
Lorsque l'étrier 13 se trouve dans la position du pointage minimum (
Enfin, lorsque l'étrier 13 se trouve dans la position du pointage maximal (
Il est possible d'assurer l'entraînement en rotation du volet par d'autres moyens.It is possible to drive the shutter in rotation by other means.
La
Les
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
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 (
Inversement le bord droit 25 du volet s'approche du bord supérieur de la fenêtre lorsque le pointage avoisine l'angle de pointage maximal (
On notera que les
Enfin lorsque le pointage est médian (
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 previous embodiments have been described with reference to pointing in elevation and to pointing in bearing of the line of sight 4. Conventionally pointing in elevation corresponds to a pivoting of the viewfinder around an axis of horizontal pointing 7 and pointing in bearing is done by rotation of the sight around a vertical axis 6. It is of course possible to position the sight with orientations of the axes of site 7 and bearing 6 which are no longer respectively horizontal and vertical. The aiming of the line of sight can always be carried out but with combined commands 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 so that the invention can be implemented is that the pointing axes 6 and 7 are perpendicular to each other and that the window has its side edges arranged in meridian planes parallel to an axis (called bearing) which is the axis causing the sphere formed by the cover to pivot. The axis (known as elevation) being an axis perpendicular to this bearing axis.
Claims (4)
- - A protective device (1) for a sight that can be oriented in elevation, the device including a cover (2) that surrounds the sight and includes a longitudinal window (3) delimited by two parallel lateral edges (3a, 3b) allowing an elevation swing of a line of sight (4) of the sight, the device being characterised in that the cover (2) is spherical and in that it includes a flap (8) with a spherical profile, complementary to that of the cover, and having an opening (9) allowing the line of sight (4) to pass through, from which flap (8) a sector was cut off and thus the flap (8) having a straight edge (25) arranged in the vicinity of a lateral edge (3a, 3b) of the window (3) when in a median aiming position, the flap (8) closing the window and being able to pivot about the line of sight (4), the flap (8) being moved in elevation by laying means in such a way that the opening (9) follows the elevation positioning of the line of sight (4), the device also including means ensuring the rotational drive of the flap (8) during elevation laying, thus ensuring that the window (3) is closed by the flap (8) for all the elevation laying positions.
- - The protective device according to claim 1, characterised in that the laying means include a ring (20) pivotally connected to a base of the cover (2) and mounted so as to pivot in bearing about a vertical axis (6), the ring being able to be controlled in rotation by a motor means (M) and carrying a sector (21) with bevel teeth meshing with complementary teeth (22) integral with a bracket (13), the bracket itself being mounted so as to be pivotable relative to the cover (2) about a horizontal axis (7), the flap (8) being secured to the bracket (13).
- - The protective device according to claim 2, characterised in that the flap (8) is mounted so as to be pivotable relative to the bracket (13) at its opening (9), the means for driving the flap in rotation including a sprocket wheel (18) with a conical profile integral with the flap (8) and which meshes with a rack (19) integral with the cover (2), modifying the elevation laying of the bracket (13) resulting in the pivoting of the flap (8).
- - The protective device according to claim 2, characterised in that the flap (8) is mounted so as to be pivotable relative to the bracket (13) at its opening (9), the means for driving the flap in rotation including a pin (27) secured to the flap (8) and running in a groove (28) provided in the cover (2), modifying the elevation laying of the bracket (13) resulting in the pivoting of the flap (8) .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
PCT/IB2019/051458 WO2019162896A1 (en) | 2018-02-23 | 2019-02-22 | Protective device for a vertically orientable viewfinder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3755966A1 EP3755966A1 (en) | 2020-12-30 |
EP3755966B1 true EP3755966B1 (en) | 2022-03-30 |
Family
ID=62017461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19712037.1A Active EP3755966B1 (en) | 2018-02-23 | 2019-02-22 | Protective device for an 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) |
Families Citing this family (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 |
Family Cites Families (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 |
FR2509034B1 (en) | 1981-07-03 | 1985-12-06 | Sfim | PROTECTED PERISCOPIC SIGHT |
US8646374B2 (en) * | 2010-07-27 | 2014-02-11 | Raytheon Company | Weapon station and associated method |
DE102013100331A1 (en) * | 2013-01-14 | 2014-07-17 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Protective device for an optic |
FR3019281B1 (en) | 2014-03-28 | 2016-04-22 | Sagem Defense Securite | OPTRONIC SIGHT WITH MODULAR SHIELD |
-
2018
- 2018-02-23 FR FR1800167A patent/FR3078397B1/en active Active
-
2019
- 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
- 2019-02-22 EP EP19712037.1A patent/EP3755966B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
ES2919625T3 (en) | 2022-07-27 |
PL3755966T3 (en) | 2022-06-13 |
FR3078397A1 (en) | 2019-08-30 |
FR3078397B1 (en) | 2021-05-07 |
EP3755966A1 (en) | 2020-12-30 |
WO2019162896A1 (en) | 2019-08-29 |
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