Abstract: An adaptive masking method for an element in a field of operations. According to this method, at least one cover allowing to cover the element is implemented, the cover carrying at least one image generator network connected to an image synthesizer coupled to a camera. According to this method, the camera is positioned so as to cover both a portion of a background of the element and the entire cover, the image synthesizer controlling the at least one image generator network so as to minimize the contrast and optionally the frequency deviation between the background and the cover. The device implementing such a method is described.

Abstract: A device for rapid removal/reinstallation of a back of a seat of a vehicle, the back being attached, by at least one first strap, to a ceiling. The device includes a hanging intermediary structure and a fixed structure integral with the ceiling and retaining the structure in the use position of the seat, in which it has been brought with an upward movement, and locking the structure in the use position or unlocking it such that it is moved away from the ceiling to release the tension exerted by the first strap and allow the structure to be disengaged from the retaining unit. The back can thus be removed or reinstalled without any action on the tension setting of the strap.

Abstract: A seat for a vehicle, including a seating part pivoting about a pivot connection, a pivot connection allowing the seating part to be lowered into a substantially horizontal position or lifted against a back rest, the lowering of the seating part being limited in the course thereof by at least one first abutment that can release the lowering following an impact, the being characterized in that the seating part includes at least two adjacent panels that can carry out a fold-back movement in relation to each other about an axis parallel to the pivot connection between the seating part and the back rest in such a way as to be able to bring the upper faces of the panels towards each other.

Abstract: The invention relates to a reflecting cell including at least two substrates covered by an electrode and facing each other, the substrates delimiting between them a volume which separates them and which is filled with a cholesteric liquid crystal-type material, both electrodes being intended to be connected to a voltage source. This cell includes at least one half-wave plate arranged between both substrates and dividing the volume into two compartments, each enclosing a part of a same cholesteric liquid crystal.

Abstract: A reflecting cell including at least two substrates each covered by an electrode and facing each other, the substrates delimitating between them a volume which separates them and which is filled with a bistable liquid crystal-type material with a threshold field, for example a cholesteric liquid crystal, both electrodes being intended to be connected to a voltage source. This cell is characterized in that at least one of the electrodes is formed by associating a pattern, which does not entirely cover the surface of the substrate considered, and a conducting layer which covers the surface of the substrate considered, the conductivity of the material of the layer being lower than that of the material of the pattern.

Abstract: A device for distribution of conditioning air for vehicle turret comprises at least one air duct sheath, the sheath comprising a chute adapted to be made integral with the vehicle and a shutter adapted to be made integral with the turret. The sheath is the form of an arch of circle coaxial with the rotation axis of turret. The device comprises at least one duct in the form of an arch of circle having the same average radius as that of the sheath and able to slide with respect to the sheath between a closed position in which the duct connects one end of the sheath to another end of said sheath, or to another sheath, for continuity of airflow between the sheaths, and an open position in which the duct is slid within the sheath so as to leave a passage transverse to the sheath along a circular sector.

Abstract: A device for rapid removal/reinstallation of a back of a seat of a vehicle, the back being attached, by at least one first strap, to a ceiling. The device includes a hanging intermediary structure and a fixed structure integral with the ceiling and retaining the structure in the use position of the seat, in which it has been brought with an upward movement, and locking the structure in the use position or unlocking it such that it is moved away from the ceiling to release the tension exerted by the first strap and allow the structure to be disengaged from the retaining unit. The back can thus be removed or reinstalled without any action on the tension setting of the strap.

Abstract: The invention relates to a method for acquiring the coordinates of a trigger point (P) of a projectile (4) above a field part (1) on which a target (5a, 5b, 5c) is located. The method is characterized in that it comprises the following steps: emission of at least one laser pulse having a pre-determined duration and directed towards the target (5a, 5b, 5c); reception of the images reflected with a receiver equipped with means for the synchronous visualization of the laser pulses originating from a piece of observation of the field part (1); recovery of the coordinates of a desired trigger point (P) when the operator has chosen a location after the piece of observation was moved. The invention also relates to a fire-control system using such a method.

Abstract: A vehicle and its air-conditioning air distribution device for a vehicle turret rotatably mounted with respect to a body of the vehicle. This device includes at least one annular chute coaxial to the axis of rotation of the turret and including at least one first flow orifice, the chute having an annular opening which is concentric thereto, the chute receiving a closing ring which matches with the opening of the chute, the closing ring being rotatable with respect to the chute, and including at least one second air flow orifice, the chute being intended to be made integral with the body, respectively with the turret, while the closing ring is intended to be made integral with the turret, respectively with the body.

Abstract: A vehicle including a door and a ballistic protection device for a door having a ballistic protection element connected to the door via a device for automatically bringing closer and spacing apart the protection element when opening and closing the door, the device for bringing closer and spacing apart include at least one upper connecting arm and at least one lower connecting arm of the same length and hinged to the protection element and the door, so that the protection element and the door can be brought closer to and spaced apart from each other, while remaining parallel to each other, and at least one actuating arm, hinged to the at least one lower connecting arm and to a fixed part of the vehicle, so as to control, by action on the at least one lower connecting arm, the displacement of the protection element with respect to the door.

Abstract: A method for acquiring the coordinates of a trigger point of a projectile above a plot of land on which a target is located, said method being characterized in that it includes the following steps: performing a three-dimensional acquisition of the plot of land using a laser observation means, constructing by calculation, and then displaying an image of the plot of land from a bird's eye view observation direction, and recovering the coordinates of the trigger point desired for the projectile after the positioning said area on the image of the land. The invention also relates to a fire control implementing such a method.

Abstract: A body shell of an armored vehicle includes a front face carrying a bulletproof windscreen projecting towards an outside of the body shell, at least one side wall including an opening, the side wall being integral with the front face at a strut that is defined by a part of the side wall included between an edge of the opening and a rim of the side wall situated furthest outwards at the front of the vehicle. In the armored vehicle body shell, the strut extends beyond the front face towards the outside of the body shell, and the edge of the opening is situated near the front face so that a junction between the strut and the front face of the body shell is at the vicinity of the edge of the opening which forms a rear edge of the strut.

Abstract: The invention relates to a host structure (1) for lying persons and a vehicle provided with such a structure, the structure (1) comprising at least two stretcher supports (2a, 2b, 2c) moveable along a circuit (5a) defined by guiding means (5) parallel to each other. The ends of each stretcher support (2a, 2b, 2c) are attached via a pivot connection (6) to a connecting means (15) which is guided by one of the guiding means (5), each guiding means (5) being conformed so as to form a closed circuit (5a) to allow a circular permutation of the stretcher supports (2a, 2b, 2c).

Abstract: A seat for a vehicle, including a seating part pivoting about a pivot connection, a pivot connection allowing the seating part to be lowered into a substantially horizontal position or lifted against a back rest, the lowering of the seating part being limited in the course thereof by at least one first abutment that can release the lowering following an impact, the being characterized in that the seating part includes at least two adjacent panels that can carry out a fold-back movement in relation to each other about an axis parallel to the pivot connection between the seating part and the back rest in such a way as to be able to bring the upper faces of the panels towards each other.

Abstract: An assembly process for a vehicle of substantial height, process in which at least one pit is implemented that is able to accommodate the vehicle, the latter being positioned on at least one removable floor platform able to raise the vehicle with respect to the bottom of the pit, the floor platform being positioned at the required height by means of positioning means.

Abstract: The invention relates to an armored ventilation grille for an opening, the grille including an outer side to be exposed to a projectile shot and an inner side to be applied to the opening, the grille including a plurality of parallel bars, the bars having a V-shaped cross-section, each limb of the V being made of of a blade, the blades being arranged in chevrons in order to form baffles such that at least one blade is located in the trajectory of the projectile shot whatever the incidence may be. The grille according to the invention wherein the outer blades is made an armored material while the inner blades made of a ductile material, the blades all being fixed to transverse members in the bearing ranges in such a way that they can be disassembled.

Abstract: The invention relates to a movable artillery gun comprising: a frame supporting a turning plate, turning plate comprising a first pivot link of a vertical axis, turning plate comprising at least one turning motor means for rotating a turning interface around the first pivot link, the turning interface supporting a firing carriage and comprising a fine traverse laying means allowing the carriage to rotate with respect to the turning interface around a second pivot link of a vertical axis.

Abstract: The invention relates to protection grid against a projectile, for example of the rocket type that incorporates a body extended by a fuse, said grid incorporating bars linked together by uprights, and is characterized in that said grid is formed in a single piece and is of a thickness that is less than three times the thickness of a bar, the section of a bar and uprights being polygonal with square edges.

Abstract: A protection device for a vehicle cab having a floor and two vertical side walls, the device including an armor plate below and substantially parallel to the floor of the cab, and deformable compartmented caissons connected between the floor and the armor plate and under the side walls of the cab, each compartmented caisson having buckleable walls dimensioned to buckle upon shock impact to the exterior of the armor plate.

Abstract: The invention relates to a support device for the gun sight of a military vehicle, incorporating a head to which the gun sight is fastened and a foot which is integral with the vehicle, the head being integral with a column with a vertical axis which is introduced into the foot, the column being made integral with the foot by spring means wherein the spring means are constituted in the form of tongues arranged along at least two parallel planes perpendicular to the vertical axis of the support, each plane incorporating at least three tongues evenly spaced angularly around the column and integral with it by a first end and integral with the foot by their second end, these spring means imparting stiffness to the link between the column and the foot that is less along the vertical axis than along the other directions (X, Y) orthogonal to this vertical axis.