EP0809085B1 - Sicherheits- und Spannvorrichtung, insbesondere für Minen - Google Patents

Sicherheits- und Spannvorrichtung, insbesondere für Minen Download PDF

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Publication number
EP0809085B1
EP0809085B1 EP19970400962 EP97400962A EP0809085B1 EP 0809085 B1 EP0809085 B1 EP 0809085B1 EP 19970400962 EP19970400962 EP 19970400962 EP 97400962 A EP97400962 A EP 97400962A EP 0809085 B1 EP0809085 B1 EP 0809085B1
Authority
EP
European Patent Office
Prior art keywords
rod
safety
slide
locking
lever
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.)
Expired - Lifetime
Application number
EP19970400962
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English (en)
French (fr)
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EP0809085A1 (de
Inventor
Maurice Philipot
André Blin
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.)
Giat Industries SA
Original Assignee
Giat Industries SA
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 Giat Industries SA filed Critical Giat Industries SA
Publication of EP0809085A1 publication Critical patent/EP0809085A1/de
Application granted granted Critical
Publication of EP0809085B1 publication Critical patent/EP0809085B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C14/00—Mechanical fuzes characterised by the ammunition class or type
    • F42C14/08—Mechanical fuzes characterised by the ammunition class or type for land mines

Definitions

  • the technical field of the invention is that of security and arming devices for ammunition and particularly for mines with horizontal action.
  • This device is designed for ammunition fired by a weapon but it can be used in a munition posable with the hand, like a mine.
  • the arming means cannot be manipulated by operator during lifting.
  • Patent DE2802700 proposes an arming device for marine mine with a mechanically pulled rod which releases a piston itself activated by the pressure of the water.
  • This device does not arm a time delay watchmaking .
  • the rod is immobilized in position pulled by at least one lock which cannot be removed. This device is therefore completely irreversible.
  • the device according to the invention thus makes it possible to ensure the reliability of chronometry operation by prohibiting any action on the control means after armament.
  • the device according to the invention also allows several successive reuse of the mine while maintaining the same level of security and reliability.
  • the subject of the invention is a safety device and of weapons for a munition, in particular a mine, comprising a timekeeping system which is armed by the displacement of a control means and which causes the passage of a primer door system from a safety position to a armed position, device characterized in that the means of control consists of a rod mounted so sliding in a body of the device, the device comprising means for locking in translation of the control rod, means which are activated consecutively to the traction of the latter and which ensure the locking of the rod when it is returned to a position initial retracted after pulling the rod, these means locking device comprising a stop integral with the rod and intended to cooperate with a finger mounted to pivot relative to body, finger can occupy at least two positions, one locking position in translation of the rod and a rod release position.
  • the security and arming system may include minus a return spring bringing the stopper and the rod in an initial retracted position after pulling the rod.
  • the clock timing system will be advantageously actuated by a slide pushed by motor means, the slide being free in translation relative to the rod and being driven in translation by the stop during the pull of the rod.
  • the slide carries a cooperating extension, when it translate pushed by the motor means, with a profile of cam secured to the locking finger to ensure the passage of the latter in the locked position and on the other hand maintaining the finger in this position during the part of the slide movement which ensures the passage of the primer holder system from its position security at its armed position.
  • the primer system can be maintained in a safety position by at least two locks, a first bolt being released following the pulling of the rod control.
  • the first lock consists of a first lever mounted to pivot by relation to the body, the pivoting of the lever being caused by the action of a stud secured to the slide.
  • the security and arming system may include a second lock which is released from the primer door system by an action on a triggering organ.
  • the second lock will then advantageously consist of a second lever mounted to pivot relative to the body and pushed towards the primer holder system by a return spring, the second lever cooperating with an abutment surface of the system carries primer so as to lock it when he occupies an armed position.
  • the slide is preferably held by the time delay in its immobilization position of the locking rod of the control rod.
  • control rod may wear an operating button allowing it to rotate relative to the device body and give it at least two different positions, a storage position and a operating position, the device comprising also a locking cam linked in rotation to the rod controlling and cooperating with a body light for prohibit any translation of the control rod when it is in the storage position.
  • the rod When the device is placed in a box constituting a sealed enclosure isolated from the atmosphere by joints, the rod will advantageously bear at one end external a valve comprising a sliding cylinder relative to an axial piston, the traction of the rod causing relative displacement of the cylinder and the piston which breaks the seal between the cylinder and the piston and a pressure balancing between the interior of the housing and the exterior.
  • the device proposed ensures reliable passage into position of arming with reproducible delay times.
  • a safety device and armament 1 consists of a box 2 intended to be fixed to the mine and inside which is arranged a rotor 3 carrying a primer 4.
  • This rotor 3 can rotate around a perpendicular axis 21 in the plane of FIG. 1 and it is immobilized in its position security (which is the one shown in Figures 1 to 3) by two locks.
  • the primer 4 When the rotor is in its armed position, the primer 4 is opposite and aligned axially with a opening 67 fitted in the housing, opening which communicates with an explosive charge from the mine (not shown).
  • the primer is electrically initiated, its initiation will be caused by a target detector of known type not shown, for example an infrared sensor.
  • a target detector of known type not shown, for example an infrared sensor.
  • a first lock 5 of the rotor is constituted by a first lever pivotally mounted relative to the body of the housing.
  • This lever pivots around an axis 6, it has a shape general in L and has a spout 7 (see Figure 3) which engages in a notch 8 of the rotor 3.
  • the spout 7 is pushed towards the rotor by the action of a compression spring 9 which rests, on the one hand on a support bar 10 secured to the device body, and on the other hand on a fold 11 of the first lever 5.
  • Nipples centering 12a, 12b are provided to ensure maintenance of the comes out during movement of the lever.
  • the first lever 5 bears on a lower face (see Figure 1) a profile 54 (in the shape of an "L") which cooperates with a nipple 53 carried by a movable slide 37.
  • the displacement of the slide 37 causes the first lever 5 to pivot.
  • nipple 53 of the slide ensuring the maintenance of the lever in its rotor locking position 3.
  • the rotor 3 is also held in the safety position by a second lock 13 which is constituted by a second lever having a general L shape and pivotally mounted by relation to the body around the same axis 6 as the first lever 5.
  • This second lever 13 has a spout 14 (see Figure 1) which engages in a notch 15 of the rotor 3. It is maintained engaged in the notch 15 of the rotor by the action of another compression spring 16 which, too, is supported by a side on a support bar 17 secured to the body of device and on the other side on one face 22 of the lever 13.
  • Centering pins 18a, 18b maintain the spring 16 during movements of the second lever.
  • the axis of rotation 6 and the pins for holding the bars 10 and 17 are fixed on a plate 19, itself rendered secured to the housing by screws 20.
  • the second lever 13 can be released from the rotor 3 by a manual action on a triggering device constituted by a zipper 23.
  • the zipper has an axis 24, one of which enlarged end 25 is positioned in a housing 26 fitted at the end of a first arm 13a of the second lever 13.
  • the other end of the axis 24 carries a button operation 27.
  • a compression spring 28 pushes the pull tab towards the second lever 13 and keeps it in position shown in Figure 1.
  • the second lever 13 can also be released from the rotor 3 by means of an electromagnet 29, one end of the rod 30 is positioned in a housing 31 arranged at the end of the second arm 13b of the second lever 13.
  • Figure 2 shows the safety device and according to the invention after removal of the plate 19 bearing the locking levers 13 and 5 and the rotor carries primer 3, and removal of a spacer plate 52 (see figure 4).
  • a second plate 32 appears and it is also screwed to the body of the case.
  • This second plate maintains the system of clock timer 33 which is of a known type and will not be not described in detail.
  • This system includes a number cogwheels, the first wheel 34 (or drive wheel) receives the mechanical energy supplied by a spring of compression 36 pushing the slide 37 which carries a rack 38.
  • the last wheel 35 (or drive wheel) is integral with the primer holder rotor.
  • a gear train brakes the rotation of the drive wheel and ensures desired delay.
  • the second plate 32 is partially removed on the figure 2 to show more clearly the means of device control. We will also refer to the figure 4 for the description of the control means.
  • This control means comprises a control rod 39 which extends over substantially the entire length of the housing.
  • the control rod carries a button at its outer end control 40 and at its other end (internal to the housing) a movable stop 41.
  • the stop 41 is made integral with the rod 39 by means of a nut 42 (see FIG. 4).
  • the stop 41 has a bore 43 slidably mounted on a guide rod 44 secured to the housing.
  • a compression spring 45 is mounted coaxially with the rod 44, it has the effect of repelling the stop (and the control rod 39 linked to it) in the position shown in Figures 2 and 4.
  • the slide 37 is mounted free in translation on the control rod 39. It is pushed towards the stop 41 by the motor spring 36 which rests, on the one hand on a retaining washer 46 secured to the housing and on the other hand on a countersink 47 of the internal bore 48 of the slide 37.
  • the spring 36 is guided by a sleeve 49 coaxial with the control rod.
  • the slide 37 has a window 50 to inside of which a locking cam is positioned 51 which is linked in rotation to the control rod 39 but which, driven by the slide, can translate by compared to rod 39.
  • the rod of control has a square section and in particular carries two flats 39a, 39b which extend over its entire length (cf. FIG. 4a for the mounting detail of the cam 51 on the rod).
  • the function of this blocking cam will be specified later.
  • the slide 37 carries on its upper face the stud 53 cited above. It circulates in grooves longitudinal 55, 56, 57 fitted respectively on the plates 32, 19 and on the spacer 52.
  • the stud 53 cooperates with the surface of the profile 54 which is secured to the first locking lever 5 (see Figure 1) so as to drive the first lever 5 and release it or engage it in the notch 8 of the primer holder rotor.
  • the housing body carries also a finger 58 mounted to pivot relative to the body around an axis 59.
  • This finger can occupy at least two extreme angular positions corresponding to its setting stop on an axis 60 at a cylindrical clearance 61.
  • the finger 58 has a spout 62 which is intended to cooperate with a complementary spout 63 carried by the stop 41, so to lock the control rod 39 in translation by through the stop 41.
  • the slide has an extension 65 which cooperates with a cam profile 64 integral with the finger 58, so as to cause the latter to change position when translation of the slide.
  • the device Once the device is closed, it sealed enclosure which is isolated from the atmosphere by joints. Such an arrangement improves the behavior of the device long-term storage.
  • control rod 39 carries at its outer end a valve 69 which comprises a cylinder 70 integral with the control button 40 and capable of slide over a short length (1 to 2 mm) compared to a axial piston 71 secured to the rod 39 (see Figure 1).
  • a bellows flexible 72 is provided between the button 40 and the body 2 of case, this in order to ensure a sealing against humidity whatever the position of the rod 39.
  • the seal between the cylinder 70 and the piston 71 of the valve is provided by one or more O-rings.
  • the relative translation of the cylinder with respect to the piston allows at least one O-ring to be released from its surface contact, this results in a radial clearance of a few tenths of mm between cylinder and piston, clearance sufficient to ensure pressure balancing.
  • the primer rotor has also been designed on the Figures 5 to 7 to specify for each state of the device what is the corresponding position of the rotor.
  • Figure 2 shows the device in its position storage security.
  • the starter rotor is immobilized by two locks and the control rod is also located blocked in translation due to the active position of the blocking cam 51.
  • the cam 51 occupies by compared to slide 37 an angular position such that its widened end 51a enters a rectangular light 66 fitted on the plate 32.
  • the cam 51 comes in stop against plate 32 and therefore prohibits any translation of the control rod.
  • the first lever 5 is immobilized in its locking position of the rotor 3 by the cooperation of the pin 53 of the slide 37 with the profile 54 of the first lever 5.
  • the user begins by turn the control knob 40 90 °.
  • the purpose of this action is effect of pivoting the locking cam 51 which is housed then completely in slide 37 and no longer interferes with plate 32. Traction of the control rod then becomes possible.
  • FIG. 5 shows schematically the device when the control rod 39 is completely pulled out.
  • the locking finger 58 has been tilted (according to the direction F) from its initial position to its second position by passing the extension 65 of the slide 37 on the cam profile 64 of finger 58.
  • the displacement of the slide 37 also causes the release of the first lock on the primer holder rotor by the action of the nipple 53.
  • the profile 54 is defined so that this release only occurs when the slide 37 arrives a few millimeters from its extreme position.
  • the second lock 13 is still engaged in the rotor which therefore remains in the safety position.
  • Figure 6 shows the device once the rod command has been released. Stop 41, pushed by the spring 45, returns to its original position and drives the control rod 39. The stop pushes the finger locking 58 in direction G, the latter not being not yet blocked by slide 37.
  • the mainspring 36 pushes on the slide 37, but the second lock 13 still being engaged in the rotor, the slide remains blocked by the time delay watchmaker 33 in the position shown in FIG. 6.
  • the action on the zipper can be replaced by a action of the electromagnet 29, remotely controlled, by example by radio remote control.
  • the timer cannot be released only if the two rotor locks are released, or the first latch has a position of the profile 54 (fig 1) such that it does not found released by the nipple 53 of the slide only when this last one is 1 or 2 millimeters from the position shown figure 5 (i.e. the one corresponding to the maximum traction for the rod).
  • the displacement of the slide causes from the start of the time delay for tilting of the locking finger 58 following direction F, due to the action of the extension 65 on the cam profile 64.
  • the finger adopts the position of lock shown in FIG. 7, in which its beak 62 prohibits any axial movement of the stop 41 (and therefore of the control axis 39).
  • the slide 37 blocks the locking finger 58 in this position, and this throughout the delay time as well as when the device is in the position army shown in figure 7. It is therefore no longer possible to exert traction on the control rod 39, which eliminates the risk of a new pull causing a offset of the time delay which could lead a modification of the delay times, or even a immediate passage into armed position.
  • the train timing gear has at least two wheels coaxial superimposed, one driven by the rack 38 of the slide and the other driving the primer carrier rotor.
  • the wheel driven by the rack is braked by the timing gear train. It includes a toothless sector (not shown) which allows disengage the time delay when the slide is at a position close to the position shown in FIG. 7.
  • This arrangement ensures rapid passage from the rotor to its armed position at the end of the timer.
  • the position correct rotor is ensured by the presence of the second locking lever 13 whose spout 14 plays the role of stop for the rotor which carries a stop tooth 68 for this purpose on its periphery.
  • the armed position of the rotor is shown in the figure 7.
  • the primer 4 is aligned with the opening 67 of the case and with the explosive charge of the mine.
  • the mine awaits the passage of a target which will cause initiation of the primer via a device detection of known type and not described here.
  • the motor spring 36 push the slide 37 and cause the instantaneous passage of the rotor 3 in safety position (position in figure 2).
  • the passage is instantaneous due to the declutching described previously from the gear train, declutching which is intervened at the end of the time-out period.
  • the second rotor lock pushed by its spring 16 resumes also its blocking position.
  • the device therefore finds all of its initial security features and can be used again with the same level of security and reliability.
  • the device according to the invention thus allows a number indefinite successive reuse of the mine while maintaining the same level of security and reliability.
  • Neutralization of the mine may also be provoked from a distance or it can intervene automatically at the end of a service life programmed in mine electronics. In this case it is the electromagnet 29 which will be ordered and which will release the second lock 13.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Control Devices (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Toys (AREA)
  • Lock And Its Accessories (AREA)

Claims (11)

  1. Sicherheits- und Ladevorrichtung (1) für Munition, insbesondere für Minen mit einem Zeitverzögerungssystem (33), das durch Verschiebung eines Steuerungsmittels geladen wird und den Übergang eines Zündkapselträgersystems (3) aus der Sicherheits- in die Ladestellung auslöst, dadurch gekennzeichnet dass das Steuerungsmittel aus einer Stange (39) gebildet wird, die gleitend in einem Körper der Vorrichtung montiert ist, wobei die Vorrichtung mit Mitteln (41, 58) ausgestattet ist, um die Verschiebung der Steuerstange (39) zu blockieren, die bei Traktion der Steuerstange nacheinander aktiviert werden und die Blockierung der Stange gewährleisten, wenn diese nach Traktion der Stange in die eingezogene Ausgangsstellung geführt wird, wobei diese Blockierungsmittel einen mit der Stange (39) verbundenen Anschlag (41) aufweisen, der mit einer um den Körper drehbar montierten Klinke (58) verbunden ist und die Klinke mindestens zwei Stellungen einnehmen kann, eine die Verschiebung der Stange blockierende Stellung, und eine die Stange freigebende Stellung.
  2. Sicherheits- und Ladevorrichtung nach Anspruch 1, dadurch gekennzeichnet dass sie mindestens eine Rückstellfeder (45) hat, die den Anschlag (41) und die Stange (39) nach Traktion der Stange in die eingezogene Ausgangsstellung zurückführt.
  3. Sicherheits- und Ladevorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das Zeitverzögerungssystem (33) durch einen mit Antriebsmitteln (36) bewegten Schieber (37) betrieben wird, der gegenüber der Stange (39) frei verschiebbar ist und bei Traktion der Stange vom Anschlag (41) in Translation mitgeführt wird.
  4. Sicherheits- und Ladevorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Schieber (37) eine mit der Blockierungsklinke (58) verbundene Verlängerung (65) in Nockenform (64) hat, die bei der Verschiebung mitwirkt und durch die Antriebsmittel bewegt wird, um einerseits den Übergang der Klinke in die Blockierungsstellung und andererseits bei Translation des Schiebers das Verharren der Klinke in dieser den Übergang des Zündkapselträgersystems (3) von der Sicherheits- in die Ladestellung gewährleistenden Stellung sicherzustellen.
  5. Sicherheits- und Ladevorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Zündkapselträgersystem (3) durch mindestens zwei Riegel in einer Sicherheitsstellung gehalten wird, wobei ein erster Riegel nach Traktion der Steuerstange freigegeben wird.
  6. Sicherheits- und Ladevorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der erste Riegel durch einen ersten Hebel (5) gebildet wird, der drehbar zum Körper montiert ist, während das Drehen des Hebels durch Einwirkung eines mit dem Schieber (37) verbundenen Ansatzes (53) ausgelöst wird.
  7. Sicherheits- und Ladevorrichtung nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass sie einen zweiten Riegel hat, der durch Einwirken auf das auslösende Teil vom Zündkapselträgersystem (3) gelöst wird.
  8. Sicherheits- und Ladevorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der zweite Riegel durch einen zweiten Hebel (13) gebildet wird, der drehbar zum Körper montiert ist und durch eine Rückstellfeder (16) zum Zündkapselträgersystem (3) geschoben wird, während der zweite Hebel ist mit einer Fläche (68) des Ansatzes des Zündkapselträgersystems (3) verbunden ist, so dass er das System blockieren kann, wenn es sich in Ladestellung befindet.
  9. Sicherheits- und Ladevorrichtung nach Ansprüche 3 und 8, dadurch gekennzeichnet, dass der Schieber (37), wenn sich das Zündkapselträgersystem (3) in Ladestellung befindet, durch die Zeitverzögerung (33) in einer Stellung gehalten wird, in der er die Klinke (58) der Steuerstange (39) blockiert.
  10. Sicherheits- und Ladevorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Steuerstange (39) einen Bedienungsknopf (40) trägt, mit dem sie in Bezug zum Körper der Vorrichtung gedreht werden und der Körper mindestens zwei unterschiedliche Stellungen, eine Lager- und eine Betriebsstellung, einnehmen kann, wobei die Vorrichtung auch mit einem drehbar mit der Steuerstange (39) verbundenen Blockierungsnocken (51) ausgestattet ist, der mit einer Öffnung (66) des Körpers verbunden ist, um jede Verschiebung der Steuerstange (39) zu verhindern, wenn sie sich in Lagerungsstellung befindet.
  11. Sicherheits- und Ladevorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass sie in einem Gehäuse untergebracht ist, das einen mit Dichtungen luftdicht isolierten Behälter bildet, in dass die Stange (39) an einem Ende einen Stopfen (69) mit einem Zylinder (70) trägt, der an einem Axialkolben (71) gleiten kann, wobei die Traktion der Stange (39) eine relative Verschiebung von Zylinder (70) und Kolben (71) auslöst, die die Abdichtung zwischen Zylinder und Kolben aufhebt und einen Druckausgleich zwischen dem Inneren und dem Äußeren des Gehäuses herstellt.
EP19970400962 1996-05-21 1997-04-29 Sicherheits- und Spannvorrichtung, insbesondere für Minen Expired - Lifetime EP0809085B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9606285 1996-05-21
FR9606285A FR2749072B1 (fr) 1996-05-21 1996-05-21 Dispositif de securite et d'armement notamment pour mine

Publications (2)

Publication Number Publication Date
EP0809085A1 EP0809085A1 (de) 1997-11-26
EP0809085B1 true EP0809085B1 (de) 2001-08-22

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EP19970400962 Expired - Lifetime EP0809085B1 (de) 1996-05-21 1997-04-29 Sicherheits- und Spannvorrichtung, insbesondere für Minen

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EP (1) EP0809085B1 (de)
DE (1) DE69706231T2 (de)
FR (1) FR2749072B1 (de)
NO (1) NO972293L (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3045812B1 (fr) * 2015-12-22 2018-04-06 Nexter Munitions Dispositif de securite et d'armement reversible pour un engin explosif

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2802700C2 (de) * 1978-01-23 1983-10-06 Hagenuk GmbH, 2300 Kiel Sicherheitsarmatur für Seeminen
IT1097925B (it) * 1978-08-03 1985-08-31 Valsella Spa Accenditore per mine esplosive e dispositivo per rivelare lo stato della mina
DE2952722C1 (de) * 1979-12-29 1984-09-06 Hagenuk GmbH, 2300 Kiel Sicherheitsarmatur fuer Seeminen

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NO972293L (no) 1997-11-24
DE69706231T2 (de) 2002-04-18
EP0809085A1 (de) 1997-11-26
NO972293D0 (no) 1997-05-20
FR2749072B1 (fr) 1998-07-10
FR2749072A1 (fr) 1997-11-28
DE69706231D1 (de) 2001-09-27

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