EP1766319B1 - Method and shield structure against flying bodies and shock waves - Google Patents

Method and shield structure against flying bodies and shock waves Download PDF

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Publication number
EP1766319B1
EP1766319B1 EP05708182A EP05708182A EP1766319B1 EP 1766319 B1 EP1766319 B1 EP 1766319B1 EP 05708182 A EP05708182 A EP 05708182A EP 05708182 A EP05708182 A EP 05708182A EP 1766319 B1 EP1766319 B1 EP 1766319B1
Authority
EP
European Patent Office
Prior art keywords
shield structure
shield
medium
compartments
compartment
Prior art date
Legal status (The legal status 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 status listed.)
Not-in-force
Application number
EP05708182A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1766319A1 (en
Inventor
Mikko Reinikainen
Mikko Karppinen
Henri Andell
Jenni Karhu
Erno Nieminen
Jani Kauppi
Henri Laitonen
Linda NORRGÅRD
Henry Virta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suojasauma Oy
Original Assignee
Suojasauma Oy
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 Suojasauma Oy filed Critical Suojasauma Oy
Publication of EP1766319A1 publication Critical patent/EP1766319A1/en
Application granted granted Critical
Publication of EP1766319B1 publication Critical patent/EP1766319B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F41H5/06—Shields
    • F41H5/12—Shields for smallarms; for light-rocket launchers
    • F41H5/14—Wheeled armoured shields
    • 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
    • F41H5/06—Shields
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D5/00—Safety arrangements
    • F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless

Definitions

  • the present invention relates to a method and shield structure against flying pieces, such as bullets, fragments, and other similar explosive or other bodies containing a large amount of impact energy, as well as shock waves, in order to stop them, or to reduce their impact force.
  • the invention is based on a problem, which is caused by bullets, projectiles, shrapnel, fragments, or their ricochets, which should be stopped by an obstacle or structure suitable for the purpose, which can be erected and deployed rapidly.
  • bullets, projectiles, or fragments have been stopped, and their impact force absorbed using sandbags, shields made from ballistic plates, or tent-like structures filled with a foam that attenuates explosions or impact force.
  • sandbags shields made from ballistic plates, or tent-like structures filled with a foam that attenuates explosions or impact force.
  • the invention is further based on a problem, in which a crowd, for example a crowd of demonstrators, should be separated from law enforcers and retained and isolated in a specific, restricted area.
  • a crowd for example a crowd of demonstrators
  • various riot barriers or obstacles made of metal or composite materials have been used, which can be erected, for example, with the aid a rapidly expanding foam or gel placed inside fabric.
  • US patent publication 4 541 947 discloses a method for controlling a crowd or demonstration by using an barrier filled with the aid of a rapidly expanding foam.
  • the inflation substances referred to are carbon or hydrogen fluoride surfactants, which are used to prevent fuel vaporizing in accidents.
  • the expansion coefficient of such surfactants is stated to be 50:1, or even 1000:1.
  • a drawback of such gas-filled structures is that at least projectiles will ricochet from the surface of the structure when they strike it, in which case they will not dissipate in the actual shield structure, but may cause danger and damage to the surroundings.
  • EP 323 763 B1 Another type of solution is disclosed in European patent publication EP 323 763 B1 .
  • This describes a shield structure, which consists of at least one polyamide-type (such as aramid) layer, which further consists of several polyamide plates, laminates, or membranes of differing thickness and density, each of which has a different modulus of elasticity.
  • a drawback of such a structure is its size and the increase in weight due to the additional layers or laminates, which make the structure difficult to transport and to deploy very quickly.
  • the invention is intended to eliminate the defects of the bullet-shield structures described above.
  • the invention provides a transportable and rapidly inflatable and deployable protection against bodies, which also dissipate in the actual structure and do not ricochet into the surroundings.
  • the shield structure according to the invention solves the problems mentioned above by the features of independent claim 1.
  • independent method claim 8 pertain to the use of said shield structure.
  • the invention is an easily transportable shield, which is massive when in operating condition, against fragments, shrapnel, bullets, projectiles or their ricochets, and pressure.
  • the shield can be used to restrict routes.
  • the shield can be easily deployed both indoors and outdoors.
  • the shield can be utilized in many different dangerous situations.
  • the basic idea of the shield is implemented in many different forms of the shield.
  • the outer appearance of the shield can be freely selected, for example, in the form of various surface patterns.
  • a gel mass acts as a flexible factor behind a ballistic plate, if such is used, which helps to reduce the energy of the projectile.
  • the shield is deployed with the aid of water, which is available nearly everywhere.
  • the shield can be brought to the location without attracting attention and is light when dry.
  • the shield is manufactured from relatively easily obtainable materials.
  • the invention combines the most important properties required in a protection structure, these being certain ballistic protection, massiveness, rapid and simple deployment, and adaptability to different danger situations.
  • the combination of properties permits better protection than at present, for instance, in dangerous situations, in which both ballistic protection and a restriction of routes are required simultaneously.
  • the shield solution according to the invention differs from the solutions described above, in that in its transportable state it is light and can be moved by one person, while in its operating state it is, however, extremely massive. In addition, it can be deployed quickly and easily. Solutions that are stated to be characteristic of the invention are described in the accompanying Claims.
  • the shield structure 1 there is a front wall 12 of the dry part and a front wall 7 of the wet part. In addition, there are openings in it, with shut-off valves 8 in them from filling and empting the compartments, as well as a handgrip 10, a base plate 10, and moving elements 11 for moving and transporting the shield structure.
  • the dry part 14 is a part that provides additional safety in certain situations, and its not essential within the scope of the basic idea of the invention.
  • the dry part 14 there is preferably a bag-like space or spaces 13 for the placing of the ballistic plates 5, as is shown by way of example in Figure 3 .
  • the wet part 15 of the shield structure consists of compartments 3, in each one of which there is a filling connection 16.
  • a connection 2 such as a valve, coupling, or similar, preferably equipped with an operating element, for feeding a medium.
  • absorbent material 4 In each compartment, there is a portion of absorbent material 4.
  • the absorbent material is generally a material that begins to expand through the effect of a medium, particularly water, to form a gel.
  • a medium particularly water
  • One such product which is well regarded, though it is by no means the only one, is a polymer product marketed by BASF AG, which the marketer terms a super-absorbent.
  • BASF AG which the marketer terms a super-absorbent.
  • Such a polymer substance can absorb up to 1000 times its weight of medium. At the same time, the retention of the medium is excellent. Together with the medium, the polymer form a solid gel, which can be returned to a liquid by a simple operation.
  • the shield 1 is brought to the point of use by pulling it from the handgrip 9 attached to the base frame 10. Wheels 11 are also attached to the base frame 10, to facilitate movement.
  • the shield 1 is set with the base frame against the ground and the front wall 12 facing the direction of the danger.
  • the filling hose is attached to the connector 2 and the medium, especially water, is sprayed into the shield 1.
  • the compartments 3 lying on top of each other are connected to each other by feed-throughs or filling connections 16.
  • the shield 1 begins to fill one compartment 3 at a time, starting, in this case, from the lowest compartment 3.
  • the water begins to be absorbed in the absorbent material 4 located in each compartment 3, the hydro-gel begins to form.
  • the shield 1 starts to rise into its use position.
  • the absorbent material is inside the compartments, in a form that reacts rapidly with the medium being fed into it. In practice, this means that it is mostly in a fine-particle form, such as a powder.
  • any, as such known, structure, by means of which the desired shielding effect is achieved, can be used as the ballistic plates.
  • plates can be of metal, bur more preferably of some lighter material, for example, a Kevlar-based plate.
  • the shield structure is manufactured from appropriate material.
  • the material is preferably flexible, to permit, for example, the entire structure to be folded up, as shown in Figure 4 .
  • the material should, however, be sufficiently strong to withstand the pressure of the mass inside it and the pressure of a shock wave acting on it, in addition to which it should be essentially watertight, because the medium, which is usuaiiy used in this case, is water.
  • a strong fabric-like tight material is quite suitable for this purpose.
  • the shield structure 1 is emptied by adding a salt solution through the air-bleed valve 6.
  • the salt solution is allowed to act for a few minutes.
  • the shield 1 is emptied one compartment 3 at a time.
  • the upper compartment 3 is emptied first, by opening the screw plug 8 at its side. This is continued until the lowest compartment 3 has been emptied.
  • the compartments 3 can be flushed, by opening the screw plugs 8 at both sides and spraying water through the compartment 3.
  • the shield 1 should always be flushed into a sewer, and not straight into nature.
  • the salt solution is suitable when using the aforementioned super absorbent made by BASF AG, in which sodium ions play a significant part in the formation of the gel. It is obvious that other gelling agents can also be used and the mechanisms for returning them to a solution state may be completely different.
  • the shield structure according to the invention has been demonstrated to be excellent for the purpose described.
  • the shield structure according to the invention will retain its shielding effect, even if a fragment penetrates the wall of the shield structure, as the gel inside the structure will not begin to flow out of a small, or even a slightly larger hole and empty the structure.
  • the shield structure is dismantled and put into the storage state by leading the mixture of absorbent and water out through a valve.
  • the shield structure can also be implemented by combining the shield plate, an operating element equipped with a connection, and an absorbent, for example, to form a case-like structure in the manner according to Figure 4 .
  • the structure can be transported and moved easily.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Road Signs Or Road Markings (AREA)
  • Buffer Packaging (AREA)
  • Revetment (AREA)
  • Air Bags (AREA)
EP05708182A 2004-04-14 2005-02-17 Method and shield structure against flying bodies and shock waves Not-in-force EP1766319B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20040526A FI115796B (fi) 2004-04-14 2004-04-14 Suojaratkaisu lentävien projektiilien pysäyttämiseksi
PCT/FI2005/000102 WO2005100903A1 (en) 2004-04-14 2005-02-17 Method and shield structure against flying bodies and shock waves

Publications (2)

Publication Number Publication Date
EP1766319A1 EP1766319A1 (en) 2007-03-28
EP1766319B1 true EP1766319B1 (en) 2011-06-08

Family

ID=32104173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05708182A Not-in-force EP1766319B1 (en) 2004-04-14 2005-02-17 Method and shield structure against flying bodies and shock waves

Country Status (5)

Country Link
US (1) US20070151441A1 (fi)
EP (1) EP1766319B1 (fi)
AT (1) ATE512345T1 (fi)
FI (1) FI115796B (fi)
WO (1) WO2005100903A1 (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0327310D0 (en) 2003-11-24 2003-12-24 Oztech Pty Ltd Pressure impulse mitigation
ES2341671T3 (es) * 2005-04-28 2010-06-24 Flexiblast Pty Ltd Mitigacion de un impulso de presion.
GB0510490D0 (en) 2005-05-23 2005-06-29 Oztech Pty Ltd Pressure impulse mitigation
US20070144337A1 (en) * 2005-09-29 2007-06-28 Board Of Regents Of University Of Nebraska Method and apparatus for shock wave mitigation
US7963075B2 (en) * 2005-11-22 2011-06-21 Warwick Mills, Inc. Inflatable barrier
GB2447233A (en) * 2007-03-06 2008-09-10 Defender Internat Ltd Blast defence barrier
US8402875B2 (en) 2007-09-19 2013-03-26 Roger DeGreef Armor plated device
CA2784607C (en) * 2009-12-14 2016-02-09 Dynamic Shelters Inc. Tethermast and frag wall

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377990A (en) * 1944-01-20 1945-06-12 John D Brush Fire protective means for safes, cabinets, etc.
US2520972A (en) * 1945-05-22 1950-09-05 Paul A Siple Heat insulating cover
US2586873A (en) * 1945-05-22 1952-02-26 Paul A Siple Heat insulating receptacle
US3649426A (en) * 1967-12-22 1972-03-14 Hughes Aircraft Co Flexible protective armour material and method of making same
US3709169A (en) * 1970-01-16 1973-01-09 Babcock & Wilcox Co Fireproof container
US4541947A (en) 1984-02-10 1985-09-17 Rockwood Systems Corporation Method for crowd and riot control
US4589341A (en) * 1984-02-10 1986-05-20 Rockwood Systems Corporation Method for explosive blast control using expanded foam
US4630540A (en) * 1985-09-30 1986-12-23 Trocino Joseph L Detonator apparatus for liquid explosive compositions
US4782735A (en) * 1987-08-12 1988-11-08 Paul Mui Bulletproof protection apparatus
FR2625516B1 (fr) 1988-01-04 1990-06-01 Duflot & Fils Barriere textile de protection contre toute agression mecanique et/ou thermique
US5394786A (en) * 1990-06-19 1995-03-07 Suppression Systems Engineering Corp. Acoustic/shock wave attenuating assembly
US5217185A (en) * 1992-05-21 1993-06-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Ablative shielding for hypervelocity projectiles
US6029558A (en) 1997-05-12 2000-02-29 Southwest Research Institute Reactive personnel protection system
US6412391B1 (en) 1997-05-12 2002-07-02 Southwest Research Institute Reactive personnel protection system and method
US6266926B1 (en) 1999-11-01 2001-07-31 Atlantic Research Corporation Gas generator deployed occupant protection apparatus and method
US6681675B2 (en) * 2000-03-03 2004-01-27 Teledyne Brown Engineering, Inc. Remote hazardous devices interdiction process and apparatus
KR100384427B1 (ko) * 2000-07-11 2003-05-22 정태석 방탄장치
GB0101394D0 (en) * 2001-01-19 2001-03-07 Alford Sidney C Device for the disruption of explosive objects
US6907811B2 (en) 2002-03-05 2005-06-21 Defenshield, Inc. Bullet resistant barrier

Also Published As

Publication number Publication date
EP1766319A1 (en) 2007-03-28
FI20040526A0 (fi) 2004-04-14
US20070151441A1 (en) 2007-07-05
ATE512345T1 (de) 2011-06-15
WO2005100903A1 (en) 2005-10-27
FI115796B (fi) 2005-07-15

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