WO2010036411A2 - Blindage perforé allégé par modification de géométrie - Google Patents

Blindage perforé allégé par modification de géométrie Download PDF

Info

Publication number
WO2010036411A2
WO2010036411A2 PCT/US2009/045700 US2009045700W WO2010036411A2 WO 2010036411 A2 WO2010036411 A2 WO 2010036411A2 US 2009045700 W US2009045700 W US 2009045700W WO 2010036411 A2 WO2010036411 A2 WO 2010036411A2
Authority
WO
WIPO (PCT)
Prior art keywords
plate
slots
slot
perforated
sides
Prior art date
Application number
PCT/US2009/045700
Other languages
English (en)
Other versions
WO2010036411A3 (fr
Inventor
William J. Norris
Craig A. Smith
Original Assignee
Waukesha Foundry, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Waukesha Foundry, Inc. filed Critical Waukesha Foundry, Inc.
Publication of WO2010036411A2 publication Critical patent/WO2010036411A2/fr
Publication of WO2010036411A3 publication Critical patent/WO2010036411A3/fr

Links

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
    • F41H5/02—Plate construction
    • F41H5/023—Armour plate, or auxiliary armour plate mounted at a distance of the main armour plate, having cavities at its outer impact surface, or holes, for deflecting the projectile

Definitions

  • FIGS. 1 and 2 show the conventional geometry for perforated armor of the prior art, which is known as the "historic slot" geometry.
  • the historic slot geometry is well suited for production in both casting and machining process applied to a solid plate.
  • the historic slot geometry has a net weight of roughly one-half of that of a solid plate and has been found to be an effective armor material.
  • the prior art armor plate design incorporates slots extending between the front and rear faces of a generally planar plate. Within each of the slots is a web that extends across the narrower width of the slot. The web is the full depth of the plate between the front and rear faces.
  • the present disclosure relates generally to perforated armor plating for use as protection from projectiles and blasts. More specifically, the present disclosure relates to a perforated armor plate that includes a plurality of slots extending through a depth of the plate between first and second sides of the plate. Within each slot is at least one web that extends between opposing walls within the slot and extends only partially across the depth of the plate. The slots may be angled with respect to the sides of the plate. The slots may be arranged in generally parallel rows across a width of the plate with the webs of adjacent rows of slots offset from each other.
  • FIG. 1 is a first perspective view of a portion of PRIOR ART perforated armor plate.
  • FIG. 2 is a second perspective view of the PRIOR ART perforated armor plate of FIG. 1.
  • FIG. 3 is a top view of one embodiment of a perforated armor plate according to the present disclosure.
  • FIG. 4 is a perspective view of the armor plate of FIG. 3, taken along an angle of a plurality of slots in the armor plate.
  • FIG. 5 is a side cross-sectional view of the armor plate of FIG. 3, taken along line A-A in FIG. 3.
  • FIG. 6 is a top view of one alternative embodiment of a perforated armor plate according to the present disclosure.
  • FIG. 7 is a perspective view of the armor plate of FIG. 6, taken along an angle of a plurality of slots in the armor plate.
  • FIG. 8 is a side cross-sectional view of the armor plate of FIG. 6., taken along line A-A in FIG. 6.
  • the present disclosure relates generally to perforated armor of modified geometry, which is, as a result of the different geometry, is lighter in weight than the "historic slot" P900 plate geometry.
  • the preferred method of manufacturing of such improved armor may be by casting but other methods or techniques of production or manufacture, such as machining, are also anticipated within the scope of the present disclosure.
  • the geometry of the present disclosure includes oblong-shaped holes projected at an angle to the plate, as shown in FIGS. 3 to 8.
  • the webs between the slots are of different depths and may be significantly reduced from extending the full depth or thickness of the plate.
  • the result of the incorporation of such improved geometry in armor plate according to the present disclosure may be a significant weight savings, approximately 10% to 20% in some embodiments, with little to no effect on performance.
  • each slot 102 includes a first angled wall 110 and a second generally parallel angled wall 112 extending across depth 108 of plate 100.
  • any given slot 102 may be at least one web 114 extending from first wall 110 to second wall 112 of the slot.
  • webs 114 may extend only partially between first side 104 and second side 106.
  • a depth 116 of partial depth web 114 may be approximately one half of depth 108 of plate 100. While an approximately half depth web is shown, a depth more or less then half depth is contemplated within the present disclosure. Less depth may be used to achieve greater weight reduction if sufficient strength of the plate can be maintained. Alternatively, a greater depth of web may be used if greater strength is desired or necessary, with less of a weight reduction being achieved for such a plate. However, use of partial depth slots will result in weight reduction regardless of depth of the webs within the slots.
  • slots 102 may arranged in generally parallel rows 120 extending across a width W of plate 100. Referring now also to FIGS. 4 and 5, within each of the rows 120 the slots may be discontinuous so that no single slot extends across the width of plate 100. Within adjacent rows 120, slots 102 may be offset from each other so that adjacent slots are now in alignment and webs 114 of slots in adjacent rows are also offset from each other. Slots 102 along an edge 122 of plate 100 may be of different lengths so that the desired stagger of the slots and webs may be achieved. Plate 100 may includes slots having web spacing and sizing of slots are consistent from row to row so that the continuous offset pattern of slots and web may be maintained without adversely affecting ease of manufacture.
  • webs 114 may be arranged with all of the webs adjacent the same side 104 or 106. Such an arrangement of non- full-depth webs may be desirable for manufacturing efficiency. However, it is not intended to limit the present disclosure to having all the webs adjacent the same side of plate 100. The weight reduction possible through the use of less than full depth webs may be achieved with the webs that are adjacent either side or which are positioned generally equally spaced from the sides within depth 108 of plate 100.
  • FIGS. 6 to 8 illustrate another embodiment of an armor plate 200 according to the present disclosure.
  • Plate 200 includes a plurality of angled openings or slots 202 extending between a first side 204 and a second side 206 through a depth 208 of the plate.
  • each slot 202 includes a first angled wall 210 and a second generally parallel angled wall 212 extending across depth 208 of plate 200.
  • any given slot 202 may be a plurality of webs 214 extending from first wall 210 to second wall 212 of the slot.
  • webs 214 may extend only partially between first side 204 and second side 206.
  • a depth 216 of partial depth web 214 may be approximately one half of depth 208 of plate 200.
  • each row 220 may be defined by a single slot 202.
  • a plurality of webs 214 are positioned within each slot 202. These webs 214 are offset from each other within adjacent rows 220 and ends of the slots 202 may be staggered adjacent an edge 222 of plate 200.
  • the depth of webs 214 within slots 202 is again shown as approximately half the depth of plate 200. As with plate 100, it is not intended to limit this disclosure to only half depth webs. As described above, variation in the depth of webs 214 will permit plate 200 to be adapted as needed for weight reduction or strength purposes.
  • slots 102 and 202 have been shown angled at approximately twenty-five degrees with respect to the sides of plates 100 and 200, respectively. Other angles may be used within the scope of the present disclosure and the illustration of such an angle of slots is not intended to limit the present disclosure to only that angle or similar angles.
  • the family of geometries that allow for production of a lighter- weight perforated armor plate according to the present invention is well suited for production in a casting process.
  • Armor plates in accordance with the present disclosure may be formed using traditional casting, cutting, and forming processes or may be formed using the in- place cope molding process described in U.S. Application Serial No. 12/131,657, Publication No. 2009/0020254, the disclosure of which is hereby incorporated by reference.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Sewage (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

La présente invention concerne une plaque de blindage perforée comprenant une pluralité de fentes réalisées dans l'épaisseur de la plaque, entre la première face et la seconde face de la plaque. L'intérieur de chaque fente est pourvu d'au moins une âme allant d'un bord intérieur à l'autre bord intérieur de la fente, mais n'occupant qu'une partie seulement de l'épaisseur de la plaque. Les fentes sont inclinées par rapport aux bords de la plaque. Les fentes peuvent être disposées en rangées généralement parallèles dans la totalité de la largeur de la plaque, les âmes des rangées successives étant décalées d'une rangée à l'autre.
PCT/US2009/045700 2008-05-29 2009-05-29 Blindage perforé allégé par modification de géométrie WO2010036411A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5710108P 2008-05-29 2008-05-29
US61/057,101 2008-05-29

Publications (2)

Publication Number Publication Date
WO2010036411A2 true WO2010036411A2 (fr) 2010-04-01
WO2010036411A3 WO2010036411A3 (fr) 2010-05-20

Family

ID=42060349

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/045700 WO2010036411A2 (fr) 2008-05-29 2009-05-29 Blindage perforé allégé par modification de géométrie

Country Status (1)

Country Link
WO (1) WO2010036411A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2482238A (en) * 2010-07-21 2012-01-25 Secr Defence Armour element
WO2012098317A1 (fr) 2011-01-21 2012-07-26 Nexter Systems Grille de protection
EP2807444B1 (fr) 2012-01-24 2016-11-30 Krauss-Maffei Wegmann GmbH & Co. KG Élément de protection pour assurer une protection contre des projectiles balistiques et véhicule militaire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325283A (en) * 1980-03-19 1982-04-20 Cadillac Gage Company Armored grille
US4857119A (en) * 1988-03-01 1989-08-15 General Dynamics Lands Systems, Inc. Case-Hardened plate armor and method of making
US5007326A (en) * 1990-01-16 1991-04-16 The United States Of America As Represented By The Secretary Of The Army Cast single plate P900 armor
US6405630B1 (en) * 2000-11-03 2002-06-18 The United States Of America As Reresented By The Secretary Of The Army Foraminous ballistic grill
US20070125223A1 (en) * 2004-05-19 2007-06-07 Deutsches Zentrum Fur Luft-Und Raumfahrt E.V. Ceramic Armor Plate, an Armor System, and a Method of Manufacturing a Ceramic Armor Plate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325283A (en) * 1980-03-19 1982-04-20 Cadillac Gage Company Armored grille
US4857119A (en) * 1988-03-01 1989-08-15 General Dynamics Lands Systems, Inc. Case-Hardened plate armor and method of making
US5007326A (en) * 1990-01-16 1991-04-16 The United States Of America As Represented By The Secretary Of The Army Cast single plate P900 armor
US6405630B1 (en) * 2000-11-03 2002-06-18 The United States Of America As Reresented By The Secretary Of The Army Foraminous ballistic grill
US20070125223A1 (en) * 2004-05-19 2007-06-07 Deutsches Zentrum Fur Luft-Und Raumfahrt E.V. Ceramic Armor Plate, an Armor System, and a Method of Manufacturing a Ceramic Armor Plate

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2482238A (en) * 2010-07-21 2012-01-25 Secr Defence Armour element
GB2482238B (en) * 2010-07-21 2013-05-08 Secr Defence An armour element
WO2012098317A1 (fr) 2011-01-21 2012-07-26 Nexter Systems Grille de protection
FR2970773A1 (fr) * 2011-01-21 2012-07-27 Nexter Systems Grille de protection
US9003945B2 (en) 2011-01-21 2015-04-14 Nexter Systems Protection grid
EP2807444B1 (fr) 2012-01-24 2016-11-30 Krauss-Maffei Wegmann GmbH & Co. KG Élément de protection pour assurer une protection contre des projectiles balistiques et véhicule militaire
EP3128283B1 (fr) 2012-01-24 2018-09-12 Krauss-Maffei Wegmann GmbH & Co. KG Élément de protection pour assurer une protection contre des projectiles balistiques et véhicule militaire

Also Published As

Publication number Publication date
WO2010036411A3 (fr) 2010-05-20

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