[0001] This invention relates to a cover for a body armour plate.
[0002] It is known to form a breastplate resistant to ballistic impacts from ceramic material.
One particular known ballistic protective plate comprises a layer of sintered silicon
carbide edged with a urethane trim, and a layer of polyethylene having an ultra-high
modulus of elasticity.
[0003] A significant disadvantage of such a ceramic plate is that if the plate is dropped
such that its ceramic layer contacts a hard surface such as concrete, the plate cracks
and cannot then be reissued.
[0004] Accordingly, it is known to provide a fabric pocket into which the plate can be placed,
the pocket having a foam-faced insert for protecting the plate.
[0005] It is an aim of the invention to provide a protective cover which is more robust
and/ or more convenient than the known fabric pocket.
[0006] Accordingly, the invention provides a removable cover for a body armour plate, the
cover including a sheet of strong fabric intended to face away from the plate, and
an inner, foamed layer intended to face the plate, the cover being surrounded by an
endless resilient edging for surrounding a periphery of the plate so as to retain
the cover in place on the plate.
[0007] The plate can easily be removed from the cover of the invention and inspected for
damage.
[0008] The strong fabric layer may form a spall shield. In one embodiment, the strong fabric
is nylon, such as "ballistic" nylon.
[0009] The foamed layer may for example be of high-density, closed cell polyethylene foam.
[0010] The edging may comprise an elastomeric moulding and may include a part arranged substantially
perpendicular to the fabric and foamed layers so as to extend transverse to the plate
and a further part connected to the substantially-perpendicularly-arranged part and
arranged to face a side of the plate opposite a side faced by the foamed layer. The
edging may be of a synthetic thermoplastic elastomer such as polyurethane.
[0011] A particular embodiment of the invention will now be described, by way of example
only and with reference to the accompanying drawings, in which:
[0012] Figure 1 is a sectional view of a cover according to the invention and a body armour
plate;
[0013] Figure 2 is a sectional view of the cover of Figure 1 in place on the plate;
[0014] Figure 3 is a rear view of the cover of Figure 1 in place on the plate; and
[0015] Figure 4 is a section taken along the line A-A of Figure 3.
[0016] Figure 1 shows a known ballistic protective plate 1 comprising an outer layer of
sintered silicon carbide 2 edged with a urethane trim 3, and an inner layer of ultra-high
modulus polyethylene 4. The plate may optionally have a backing layer (not shown)
of strong fabric such as nylon.
[0017] A cover 5 according to the invention comprises a spall cover 6 of ballistic nylon
bonded to a foamed layer 7 of high-density, closed cell polyethylene foam such as
Plastazote ®. An elastomeric edging 8, moulded from polyurethane, is either stitched
or bonded to the spall cover 6. The edging 8 has a part 9 extending transverse to
the spall cover 6 and foamed layer 7 and then a further, re-entrant part 10 extending
parallel to the spall cover and foamed layer.
[0018] Figures 2, 3 and 4 show the cover 5 in place on the plate 1. The plate 1 is inserted
into the cover 5 by pulling the edging 8 around the periphery of the plate 1 and the
edging 8 then retains the cover 5 snugly in place.
[0019] The foamed layer 7 of the cover 5 prevents cracking of the plate if the latter is
dropped from waist height on to a hard surface such as concrete. The plate can easily
be removed from the cover 5 and inspected for damage. An inspection record can be
attached, e.g. sewn or glued, to the cover or the plate plate to record the dates
of inspections and the identity of the user.
[0020] The invention provides a protective cover which is more robust than prior art covers
and can travel with an armour plate throughout its life.
1. A removable cover for a body armour plate (1), the cover including a sheet (6) of
strong fabric intended to face away from the plate, and an inner, foamed layer (7)
intended to face the plate, the cover being surrounded by an endless resilient edging
(8) for surrounding a periphery of the plate (1) so as to retain the cover in place
on the plate.
2. A cover according to claim 1, wherein the strong fabric layer (6) forms a spall shield.
3. A cover according to claim 2, wherein the strong fabric (6) is nylon.
4. A cover according to claim 1, 2 or 3, wherein the foamed layer (7) is of high-density,
closed cell polyethylene foam.
5. A cover according to any preceding claim, wherein the edging (8) comprises an elastomeric
moulding.
6. A cover according to claim 5, wherein the edging (8) is of a synthetic thermoplastic
elastomer.
7. A cover according to claim 6, wherein the edging (8) is of polyurethane.
8. A cover according to any preceding claim, wherein the edging (8) includes a part (9)
arranged substantially perpendicular to the fabric (6) and foamed (7) layers so as
to extend transverse to the plate (1) and a further part (10) connected to the substantially-perpendicularly-arranged
part (9) and arranged to face a side of the plate opposite a side faced by the foamed
layer (7).