Wall protecting device

#The technical scope of the invention is that of devices providing protection for a vehicle wall against attack by a projectile.

#Vehicles have seen their protective means develop over the years to enable them to better withstand a threat. The most conventional form of protection is constituted by passive armor made of metal or else of several layers of composite materials.

#So-called reactive armor is also known comprising a layer of explosive placed between two metallic plates. The explosive of this armor is ignited by the impact of an incident projectile. The detonation of the explosive causes the metallic plate to be projected outwards towards the projectile, thereby destabilizing and/or destroying it. The latter type of armor is more particularly adapted to protection from shaped charges and fin-stabilized projectiles.

#The invention will be better understood after reading the following description of the different embodiments, said description being made with reference to the appended drawings, in which:

#FIG. 1 is a longitudinal section view of a first embodiment of a protection device according to the invention, the section made along the plane traced as 1-1 in FIG. 2;

#FIG. 2 is a cross section view of the first embodiment, the section made along the plane traced as 2-2 in FIG. 1;

#With reference to FIGS. 1 and 2, a protection device 1 according to a first embodiment of the invention is fastened to a wall 2 of a vehicle (not shown in detail) using a suitable mode of attachment (for example flanges 5).

#The device comprises a support 4 having a bottom plate 4a intended to be fastened to the vehicle and carrying the flanges 5, an explosive charge 3 is applied to the bottom plate 4a in the shape of a sheet of around 10 mm in thickness of explosive material (for example around 120 g of a composition associating pentol with an organic binder, for example the composition reference B2238 supplied by the Société Nationale des Poudres et Explosives—SNPE).

#The support 4 incorporates a longitudinal cavity 6 that is delimited by two lateral cheeks 4b, 4c.