EP2158111A2 - Dispositif de coupe de fils amélioré - Google Patents

Dispositif de coupe de fils amélioré

Info

Publication number
EP2158111A2
EP2158111A2 EP07789441A EP07789441A EP2158111A2 EP 2158111 A2 EP2158111 A2 EP 2158111A2 EP 07789441 A EP07789441 A EP 07789441A EP 07789441 A EP07789441 A EP 07789441A EP 2158111 A2 EP2158111 A2 EP 2158111A2
Authority
EP
European Patent Office
Prior art keywords
rod
vehicle
cutting device
wire cutting
wire
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.)
Withdrawn
Application number
EP07789441A
Other languages
German (de)
English (en)
Inventor
designation of the inventor has not yet been filed The
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.)
Carosi Ariela
Original Assignee
Pennisi Carlo Paolo
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 Pennisi Carlo Paolo filed Critical Pennisi Carlo Paolo
Priority to EP12166793.5A priority Critical patent/EP2489556B1/fr
Publication of EP2158111A2 publication Critical patent/EP2158111A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/54—Obstruction removers or deflectors
    • B60R19/545—Devices for cutting wire-type obstructions

Definitions

  • the present invention relates to a safety device, to be mounted on a vehicle, capable of cutting a cable or a stretched wire that can met during the run and arranged at a height suitable to block its transit.
  • the problem is amplified if civilian or military vehicles are called for international pacification tasks and have to move in mainly urbanized areas, during war.
  • the cables can be stretched accidentally, for example collapsed electric lines, or intentionally, for- example in strategic points for deviating or blocking the way, or for prearranging an ambush.
  • the vehicles in addition to steel cables and barbed wire, the vehicles can also run up against cables under electric voltage, arranged on the roads accidentally or intentionally.
  • these vehicles protection devices exist, so-called “wire cutters”, mounted on the front part of the vehicles and formed substantially by a rod connected frontally having a free upper end with a hooked blade.
  • the rod generally, is arranged according to the median longitudinal plane of the vehicle inclined at an angle towards the back of the vehicle. Furthermore, the rod is distanced from the vehicle. This way, a stretched wire along the path of a running vehicle meets the inclined rod before touching the vehicle. Then, the stretched wire forms two chords, at the two sides of the rod and, always without touching the vehicle starts to slide towards the above following the inclination of the rod, up to reaching the hooked blade, where it is cut. A high kinetic energy of the vehicle assists this step, owing to the strong resistance that the cable offers against lifting with respect to the original line where it was stretched.
  • a main drawback of the existing wire cutters is that when the cable has high diameter or resistance over a certain limit, the hooked blade is not capable to cut it, thus the cable does not break.
  • the deformation of the blade and/or of the cable which may be also under high voltage, traps the vehicle which cannot free the vehicle from the cable, which remains dangerously hooked without possibility of continue the way. This can cause serious risks serious for safety of the passengers that would become easy target of assaults especially during peace operations in places affected by war.
  • Another problem of particular gravity is that the vehicles often carry people in a position partially external to the vehicle, such as protruding drivers or other operators transported out of the vehicle body profile. In this case, these people are exposed to cut to the head or the body in case of a sudden contact with a stretched cable.
  • a further problem is that, if the cable is intentionally or accidentally under voltage, when the wire cutters come to an electric contact with the cable, also the vehicle is under voltage, with risks to the passengers to be shocked electrically. Furthermore, if the voltage applied to the cable is very high, for example thousands of Volts, the vehicle would form a condenser with the ground. Since the tyres of these types of vehicles have metal stiffening elements, as well as are made of a material containing high percentages of silicon, which is highly conductive, in this case the tyres would be passed through by a very intense current. Therefore the tyres could burn or explode, with risk of fire or serious damages, bringing the vehicle in electric contact with the ground and then with strong electric currents, with serious risks for the transported people.
  • a further drawback of the known wire cutters is that, extending in a direction substantially vertical in front of the vehicle, in the presence of guns on the vehicle the freedom of firing is limited, by dead angles that impede the action of a shooter. Furthermore, in case of military vehicle, since the rod can be within in the cone of fire of guns used by the passengers, the risk is high that bullets hit the rod and bounce back injuring the passengers. Summary of the invention
  • It is a feature of the present invention is to provide a wire cutting device for civilian or military vehicles capable of cutting cables stretched transversally along the way, allowing in any case to disengage from the cable if the resistance of the cable is high.
  • Another feature of the present invention is to provide a wire cutting device capable of impeding an electric contact between cables and vehicle.
  • a further feature of the present invention is to provide a wire cutting device capable of deflecting a bullet fired by the passengers, if the bullet hits accidentally the wire cutting rod, preventing the bullet to bounce back.
  • a wire cutting device which can be fixed to a vehicle movable in a travelling direction, said device having a rod arranged according to the median longitudinal plane of the vehicle and at an angle with respect to a vertical direction and opposite to said travelling direction, said rod having fixing means to said vehicle and an upper end with a hooked blade capable of cutting a wire stretched transversally with respect to said travelling direction, characterised in that: said fixing means comprises an element of interconnection to the base of said rod having controlled pliability between said rod and said vehicle, said element of interconnection being adapted to become pliable for values of resistance of said cable higher than a predetermined resistance, said wire cutting device unhooking in this case from said cable.
  • a wire cutting device which can be fixed to a vehicle movable in a travelling direction, said device having a rod arranged according to the median longitudinal plane of the vehicle and at an angle with respect to a vertical direction and opposite to said travelling direction, said rod having fixing means to said vehicle and an upper end with a hooked blade capable of cutting a wire stretched transversally with respect to said travelling direction, said wire cutting device being characterised in that it comprises : means for electric insulation between said cable and said vehicle.
  • said rod has pliability less than that of said fixing means, whereby the pliability of said wire cutting device is concentrated in said fixing means.
  • said fixing means comprises an element of interconnection to the base of said rod having a controlled pliability.
  • said element of interconnection comprises a metal elongated plate, said metal elongated plate being arranged to rest in a plane parallel or coincident to said longitudinal plane, so that it has high resistance against bending in said longitudinal plane, and lower resistance to torsion, even when bending in a plane orthogonal to said longitudinal plane.
  • said element of interconnection is pliable plastically, and is replaceable.
  • said rod has a front plane surface with respect to said travelling direction, so that when the cable presses on the wire cutting device a torque is generated on the rod that, in case said limit of predetermined resistance is exceeded, the plane surface rotates owing to the side pliability of said fixing means.
  • said fixing means comprises furthermore, at least one stiffening strut between a point of said rod and said vehicle, said at least one strut being connected to said rod by a bracket, in particular, said bracket having controlled pliability.
  • said controlled pliability of said bracket comprises an element selected from the group comprised of: an elastic element, a hinge, a plastically pliable element.
  • said rod has tubular cross section, in particular, rectangular.
  • said rod comprises means for deflecting bullets fired from the vehicle, if such bullets hit the rod, said means for deflecting comprising advantageously a deflecting section having two surfaces at an angle with respect to the possible stroke of the bullets, arranged at a V with respect to said longitudinal plane.
  • said rod comprises one or more segments that can be fastened /unfastened quickly through releasable lock means, said segments being placeable in a container when said wire cutting device is removed.
  • said wire cutting device is obtained from a plurality of adjacent elements, said means for electric insulation comprising plates and bushings of insulating material, arranged between adjacent elements in at least one connection point, adapted to block the electric conductivity between such elements.
  • said insulating means are arranged according to at least one point selected from the group comprised of:
  • said insulating means are obtained by teflon, or other flexible and insulating material.
  • said means for electric insulation are made of a material capable of resisting to a maximum voltage of 10000 V, preferably of 5000 V, in particular, of 3000 V.
  • said hooked blade comprises a flow shielding flange arranged about said at least one connection point, said flow shielding flange consisting of surfaces protruding at an angle adapted to block a water flow at said at least one point.
  • said flow shielding flange consisting of surfaces protruding at an angle adapted to block a water flow at said at least one point.
  • said wire cutting device comprises a barrier of protection connected to said rod that be arranged to cover the front part of the vehicle, said barrier remaining operatively distanced from the body of said vehicle, said barrier being capable of causing hollow charge rockets to explode in advance limiting the damages to the vehicle, said barrier being in particular a metal net.
  • said network metal has a mesh size set between 1 and 8 cm, in particular, mesh size set between 2 and 6 cm, preferably the same as 4 cm.
  • said network has a square mesh.
  • FIG. 1 shows an elevational front view of a vehicle on which a wire cutting device is mounted according to the invention connected by means of an element of interconnection having controlled pliability;
  • FIG. 2 shows an elevational side partial view of a vehicle on which it is mounted such a wire cutting device ;
  • - Figure 3 shows the cutting action of a wire stretched transversally to the path of a vehicle, by means of such a wire cutting device
  • - Figure 4 shows a deformed configuration of such a wire cutting device owing to an attempt of cutting a cable with resistance against break higher than a predetermined value, where the hooked blade is rotated with respect to the working position for disengaging from the uncut cable;
  • FIG. 5 shows a cross sectional view of a detail of a point of connection by a deformable bracket between the rod of the device according to the invention and two struts stiffening, where the connection is insulated electrically by means of plates and bushings of insulating material;
  • FIG. 6 shows a cross sectional view of a deformed configuration of the bracket owing to deformation of the wire cutting device for not exceeding the resistance of the cable;
  • FIG. 7 shows a cross sectional view of a deformed configuration of another exemplary bracket, where it is provided a hinge to assist the rotation;
  • FIG. 8 shows an exploded view of assembling a hooked blade in an end of the rod, with the interposing plates and bushings of insulating material to insulate electrically the blade from the rod;
  • FIG. 9 shows a possible embodiment of junction between two different portions of the rod, where the connection is carried out by interposing plates and bushings of insulating material;
  • FIG. 10 and 11 show respectively two longitudinal perpendicular sections of an end of the rod on — Q — which a hooked blade is mounted with the interposing elements of insulating material;
  • FIG. 12 and 13 respectively an elevational front view and an elevational side view are shown of a vehicle on which a wire cutting device is mounted according to the invention, having a barrier of protection capable of causing hollow charge rockets to explode remotely from the vehicle, reducing the risks of damage to the vehicle.
  • a wire cutting device will be illustrated to be mounted on a land vehicle, for example a vehicle on wheels or tracks, which can run up against a cable or wire stretched transversally on its way, accidentally or intentionally.
  • a land vehicle for example a vehicle on wheels or tracks
  • it is very likely to run up against cables that, in case of earthquakes, can be among ruins or material fallen along the way.
  • cables are crossed by electric current, for example when electric current is distributed across neighbouring buildings, or cables fallen owing to collapse of power lines, or intentionally stretched with object of assaults. In all these cases the presence of the cables is unpredictable by a vehicle on the way.
  • the transversally stretched wire can be for example a cable of steel; an electric cable; a barbed wire; a rope.
  • the figures from 1 to 11 show such a wire cutting device 1, capable of meet the above described needs, mounted on a vehicle 10, for example of military type .
  • Figures 1 and 2 show such a wire cutting device, having a rod 5, connected at a lower end of vehicle 10 by means of an element of interconnection having controlled pliability 4, formed for example by an elongated deformable lamina capable of folding when it is subject to a stress higher than a predetermined value, allowing the rotation of rod 5 and of blade 2 for freeing unhooked the wire cutting device when it is not capable of cutting the cable .
  • two stiffening struts 3 are provided capable of fastening the rod to a front part of the vehicle and of supporting the rod: such struts are arranged in order not to block the view of the passengers and not to impede the firing action of the same.
  • FIG 3 the cutting action of a cable 11 is shown accomplished by a wire cutting device 1 according to the invention, during the transit of a vehicle 10 along a way where cable 11 is stretched, for example for an assault.
  • the kinetic energy of the vehicle 10 allows applying to the cable 11 a transversal cutting action that, when passes the resistance of the cable 11, cuts it, otherwise the wire cutting device 1 gives way, and in particular, the element of interconnection having controlled pliability gives way as shown in figure 4, rotating the blade 2 and freeing it from the cable. This way the vehicle can be unhooked, otherwise, if were trapped by the cable, it would become an easy target of an assault.
  • the rod may have a front plane face 8, as shown in figures 5, 6 and 7, on which the action of the cable from cutting can generate a twisting torque.
  • the struts 3 are arranged in order not to impede the angular span of a gun when firing and not to block the view to the passengers, for example they are arranged aligned with the roof of the vehicle or with the bonnet. This way, if a bullet coining from the vehicle hits the rod, it cannot hit a stiffening strut and then bounce back.
  • the rod 5 can comprise more rod portions that can be assembled longitudinally.
  • a rod portion can be provided 5' integral to the deformable element of interconnection 4, in order to be replaced easily after the deformation.
  • a flexible container can be provided having gripping handles for carrying the portions that are ready to be assembled.
  • Figure 5 shows a cross sectional view of a detail of a point of connection by a deformable bracket 20 between the rod 5 and two stiffening struts 3, where the rod 5 is insulated electrically by the struts, through insulating means that comprise a bush 25 and three plates 26 and 27 having a hole where bush 25, of insulating material, for example of teflon, is inserted.
  • the connection is carried out with a screw 28 that once fastened keeps bracket 20 between the struts 3.
  • the insulating material is chosen in a way suitable to resist to a maximum voltage of 10000 V, preferably of 5000 V, in particular of 3000 V.
  • Figure 5 shows a configuration where the bracket 20 is not in deformed configuration, whereas in figure 6 the bracket is deformed after having interacted with a cable too strong.
  • a hinge 21 is used, to assist the rotation of the rod.
  • Figure 8 shows a detail of the connection between the hooked blade 2 and the rod 5, between which there are arranged elements of insulating material.
  • the blade 2 has an engagement plate 27 in rod 5, where plate 27 is insulated laterally from the rod by means of insulating plates 24, whereas holes 29 for screws 26 are insulated by bushings 25 of insulating material, as described in detail in the cross section of figures 10 and 11.
  • a V-shaped deflecting section 7 is shown, integral to rod 5, in particular, welded, and oriented towards an operator the passengers of the vehicle.
  • FIG 9 shows a possible connection between rod 5 and a next segment 5' . This connection has the same connecting features between rod 5 and blade 2 described in figure 8.
  • a rain shielding flange 23 is visible arranged on the hooked blade 2 or on a upper segment of rod 5 arranged above a lower segment 5.
  • This flange consisting of inclined surfaces, has the object of cutting the water flow, for example in case of rain, between electrically insulated adjacent elements, in fact in determined conditions and in case of high voltage, the water could form a conductive layer and then eliminate the electric insulation between adjacent segments.
  • the hooked blade comprises a plane portion 20 and at least one curved blade 22 obtained in the inner edge of the hook.
  • the hooked blade comprises a second curved blade 21 that is arranged before curved blade 22.
  • FIGS 10 and 11 two longitudinal sections of the cutting device of the invention are shown near to hooked blade 2, where the portion of engagement 27 integral to the hooked blade, the insulating bushings 25, the insulating plates 24 are shown, and in figure 11, insulating rings 28, arranged along the stem of the bushings 25.
  • a cross section is shown of the deflecting section 7 welded along the rod 5 and opposite a chute guide of beveled portion 8 adapted to allow the cable or wire to be cut, and not shown in figure, to slide between rod 5 and blade 2, passing on the flow shielding flange 23.
  • Figures 12 and 13 show the application of a barrier of protection 30 on the front part of the vehicle 10, wherein this barrier rests centrally along the rod 5 and is connected laterally along edges 31 to the front part of the vehicle, protecting the windscreen and the bonnet.
  • This barrier as shown in the figures, is formed for example, with a metal net with a square mesh having an edge size set between 1 and 8 cm, in particular, between 2 and 6 cm, preferably 4 cm.
  • Such a barrier is particularly advantageous for defence against hollow charge rockets, which have in the front part two piezoelectric triggers capable causing the charge to explode in case of any slight contact with an obstacle.
  • the rocket hits the net, it explodes, but discharging the destructive potential at a distance from vehicle and thus limiting the damages .
  • a wire cutting device as above described can be used for example on a vehicle whose optimal speed for cutting is set between 3 and 50 km/h, preferably between 5 and 30 km/h, in particular, the same as 15 km/h.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Electric Cable Installation (AREA)

Abstract

La présente invention concerne un dispositif de coupe de fils apte à être fixé à un véhicule mobile dans une direction de déplacement, comportant une tige disposée selon un plan longitudinal médian du véhicule, inclinée par rapport à une direction verticale et opposée à la direction de déplacement, ladite tige comprenant à une extrémité supérieure une lame à crochet capable de couper un fil tendu transversalement par rapport à la direction de déplacement. La tige est reliée au véhicule par des moyens de fixation comportant un élément d'interconnexion présentant une flexibilité contrôlée entre la tige et le véhicule. Ledit élément d'interconnexion est capable de d'adopter une flexibilité pour des valeurs de résistance dudit câble supérieures à une résistance prédéterminée, de sorte que le véhicule soit décroché en cas de non rupture de câble. En outre, ce dispositif de coupe de fils comporte des plaques et des traversées de matériau d'isolation électrique, disposées entre des éléments adjacents dudit dispositif dans des points de connexion afin d'assurer l'isolation électrique du fil tendu par rapport au véhicule. Des brides sont disposées autour de ces points de connexion capables d'interrompre l'écoulement d'eau en cas de pluie pour isoler la conductivité électrique. Une barrière de protection est également prévue espacée du véhicule, reliée à la tige et recouvrant la partie avant du véhicule capable d'entraîner l'explosion de fusées de charge perforante.
EP07789441A 2007-06-25 2007-06-25 Dispositif de coupe de fils amélioré Withdrawn EP2158111A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12166793.5A EP2489556B1 (fr) 2007-06-25 2007-06-25 Dispositif de coupe de fils amélioré

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2007/001729 WO2009001151A2 (fr) 2007-06-25 2007-06-25 Dispositif de coupe de fils amélioré

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP12166793.5A Division EP2489556B1 (fr) 2007-06-25 2007-06-25 Dispositif de coupe de fils amélioré

Publications (1)

Publication Number Publication Date
EP2158111A2 true EP2158111A2 (fr) 2010-03-03

Family

ID=39189381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07789441A Withdrawn EP2158111A2 (fr) 2007-06-25 2007-06-25 Dispositif de coupe de fils amélioré

Country Status (2)

Country Link
EP (1) EP2158111A2 (fr)
WO (1) WO2009001151A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476794A (en) * 2010-01-06 2011-07-13 Camlock Engineering Ltd Cable clearance apparatus for a vehicle
FR2958239B1 (fr) 2010-03-31 2013-03-15 Nexter Systems Dispositif de sectionnement d'un cable dispose sur la passage d'un vehicule

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743316A (en) * 1969-12-19 1973-07-03 G Stotesbery Protective device for snowmobiles
US3770293A (en) * 1971-03-17 1973-11-06 R Anderson Safety accessory for snowmobiles
US3841656A (en) * 1972-11-13 1974-10-15 K I C Inc Vehicle cable cutting device
US5586785A (en) * 1995-10-06 1996-12-24 The United States Of America As Represented By The Secretary Of The Army Vehicle wire cutter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009001151A2 *

Also Published As

Publication number Publication date
WO2009001151A8 (fr) 2011-08-25
WO2009001151A3 (fr) 2009-02-12
WO2009001151A2 (fr) 2008-12-31

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