Ordnance – Shields – Shape or composition
Patent
1983-11-10
1987-05-19
Kyle, Deborah L.
Ordnance
Shields
Shape or composition
109 84, 428911, F41H 502
Patent
active
046657940
DESCRIPTION:
BRIEF SUMMARY
The invention relates to armor as characterised in the preamble of claim 1 and a method of manufacturing it.
Armor of the above type is known, but its protective effect is insufficient particularly against hollow-charge projectiles.
It is the aim of the present invention to create armor of the above type, which, using simple means, ensures a higher degree of protection particularly against hollow-charge projectiles, security against multiple bombardment being intended to be improved specifically.
This is achieved according to the invention by the features given in the characterising part of claim 1.
Further advantageous developments are characterised in the dependent claims.
By arranging a plurality of filler elements of differing or uniform sizes and/or shapes in an irregular or regular orientation relative to each other, an armor is produced with a material density and orientation changing rapidly in cross-section. With such sudden changes in density and structure, the effect of the heat ray resulting from hollow-charge projectiles reduces quickly, whereby the protective capacity is increased. Bedding the filler elements into a plastic increases the safety against multiple bombardment.
The invention is shown and described below with the use of several embodiments in the attached drawings.
There are shown:
FIG. 1 a first embodiment of an armor in part-cross-section,
FIG. 2 a perspective view of a filler element,
FIG. 3 a second embodiment of this invention with spherical filler elements,
FIG. 4 a third embodiment of this invention,
FIG. 5 a section along line V--V in FIG. 4,
FIG. 6 a fourth embodiment of this invention,
FIG. 7 a block consisting of filler elements and plastics,
FIG. 8 a variation of the block shown in FIG. 7 in cross-section,
FIG. 9 a further variation according to FIG. 8.
According to FIG. 1, spaces 2, which have at least one opening for pouring in, but are preferably accessible from the entire outside surface, are found in even or uneven distribution in an armor plate 1, consisting of armored steel, or an armor-plated element, also referred to as a module.
Hollow filler elements 3 are advantageously arranged in spaces 2 by random pouring in. Filler elements 3 are of tubular shape, as can be seen from FIG. 2 and the left of FIG. 1, and preferably are of glass or ceramic. As can be seen on the right of FIG. 1, the filler elements can also be hollow spheres, and combinations of different shapes and/or different sizes are also possible.
When filler elements 3 have been filled into the respective space 2, the remaining empty spaces can then be filled with a plastic 8, preferably a foam, such as a polyurethane foam. The filler elements can also be connected, bonded or have a coating poured on before or after being poured in with an organic or inorganic binder such as monoalumiphosphate binder or a curable plastic, which, once hardened, holds the individual filler elements together. In the case of ceramic filler elements, the individual elements can also be bound together by sintering.
The ratio of the volume V.sub.H of the space to the volume V.sub.F of the individual filler element should be greater than 100, and preferably greater than 250. Filler elements with an average diameter D.sub.M of at least 3 mm and at the most 15 mm give the desired volume ratios for an advantageous space size.
The tubular pieces shown in FIG. 2 have an external diameter of 10 mm, a length of 10 mm and a bore of 8 mm.
Some of the filler elements having a space can advantageously be filled with an explosive 5, the percentage of filler elements 3 provided with explosive in one space 2 amounting to 30% at the most, but preferably to only 1%. The filler elements provided with explosive are then arranged on the side of the space facing the main exposure, shown by the arrow 4, in a layer or zone 6 whose size corresponds to the percentage.
The explosive used advantageously has a detonation speed of at least 6700 m/sec., preferably of more than 9000 m/sec. The explosive can also be arranged on the described side of the s
REFERENCES:
patent: 952877 (1910-03-01), Cowper-Coles
patent: 3431818 (1969-03-01), King
patent: 3523057 (1970-08-01), Buck
patent: 3573150 (1971-03-01), Broutman
patent: 3616115 (1971-10-01), Klimmek
patent: 3705558 (1972-12-01), McDougal et al.
patent: 3826172 (1974-07-01), Dawson
patent: 4125053 (1978-11-01), Lasker
patent: 4179979 (1979-12-01), Cook
Baggi Roland
Fischer Erwin
Gerber Erich
Gerber Urs
Gut Karl
Georg Fischer Aktiengesellschaft
Kyle Deborah L.
Parr Ted L.
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