EP0244592A1 - Sicherheitseinrichtung, verwendbar für die Aktivierung von Streuminen - Google Patents

Sicherheitseinrichtung, verwendbar für die Aktivierung von Streuminen Download PDF

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Publication number
EP0244592A1
EP0244592A1 EP87103254A EP87103254A EP0244592A1 EP 0244592 A1 EP0244592 A1 EP 0244592A1 EP 87103254 A EP87103254 A EP 87103254A EP 87103254 A EP87103254 A EP 87103254A EP 0244592 A1 EP0244592 A1 EP 0244592A1
Authority
EP
European Patent Office
Prior art keywords
cover
fact
mine
pin
essentially
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.)
Granted
Application number
EP87103254A
Other languages
English (en)
French (fr)
Other versions
EP0244592B1 (de
Inventor
Ferdinando Topa
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.)
VALSELLA MECCANOTECNICA SpA
Original Assignee
VALSELLA MECCANOTECNICA SpA
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 VALSELLA MECCANOTECNICA SpA filed Critical VALSELLA MECCANOTECNICA SpA
Priority to AT87103254T priority Critical patent/ATE57434T1/de
Publication of EP0244592A1 publication Critical patent/EP0244592A1/de
Application granted granted Critical
Publication of EP0244592B1 publication Critical patent/EP0244592B1/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
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B23/00—Land mines ; Land torpedoes
    • F42B23/24—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
    • F42B12/62—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile

Definitions

  • the present invention relates to a safety device usable for the activation of sowable mines.
  • the present invention relates to a device of the type comprising a cover which can fit on the body of the mine and a pin connected to the cover and introduceable into the body of the mine to lock the associated arming mechanism.
  • mines which adopt a safety device of the above- specified type have an irregular external structure: in fact, they have an external configuration constituted by a pair of frusto- conical portions connected at their major bases; axially from one of the smaller bases of these frustoconical portions extends a dome or pressure plate constituting the sensor element for the operation of the mine.
  • the above-mentioned safety device is constituted by a suitably shaped cover which is superimposed over the said dome whilst, through a suitable bridge arm it supports the pin which engages radially in the body of the mine.
  • the unit constituted by the mine and the associated device is not well suited to be stacked together with similar such mines and associated safety devices in appropriate containers for the launching of armed mines, such as for example, the launcher tubes with which modern mines are sown from the ground or from helicopters, or specific carriers such as battlefield rockets or projectiles.
  • the irregular peripheral structure of the unit comprising the mine and the above-described device it is not possible to house the mines in a regular stack both because the contact zone between each mine and the cover of-the safety device of the adjacent mine is not flat, and because, due to the particular structure of the cover of the device, there is an air space between each mine/safety device unit and the associated facing inner surface of the container.
  • the object of the present invention is that of providing a safety device able to overcome the above- indicated disadvantages of the devices of the above-listed known type.
  • the said object is achieved with the present invention in that it relates to a safety device for sowable mines, of the type comprising a cover which can engage on the body of the mine and a pin connected to the said cover by articulatable means, which pin can be introduced into a recess provided in the body of the mine to lock the arming mechanism of this latter, characterised by the fact that it includes spring means fixed to the said cover on the part which in use faces the body of the said mine, and able to exert a resilient force tending in use to separate the said cover from the body of the said mine.
  • a mine essentially of known type is indicated generally with the reference numeral 1, which from the structural point of view has a body 2 constituted by two frusto-conical portions 3, 4 respectively joined at their larger bases the diameters of which are identical.
  • a dome 6 extends axially and in a central position from the portion 4, which dome acts as a sensor element of the mine 1 which, if pressed, controls the explosion of the mine itself.
  • This latter further has, within its portion 4, a radial socket through which it is possible to intercept and lock the arming mechanism (not illustrated) of the mine itself.
  • a safety device generally indicated 10 and essentially comprising a cup-shape cover 11 able to cooperate with the frusto-conical portion 4 of the mine 1 against the action exerted by a flexing spring 12, and a pin 13 conveniently fixed, in a removable manner, to an outer edge of the cover 11 and operable to engage, in use, the socket 8 of the mine 1.
  • the cover 11 has a circular structure with a bottom wall 15 having a central through hole 16 and an annular seat 17 coaxial with the hole 16, which in use constitutes a housing seat for the dome 6 of the mine 1.
  • the cover 11 is cup-shape and has a side wall essentially constituted by a plurality of peripheral tongues 19 extending perpendicularly of the wall 15; consequently, in a transverse sense, the cover 11 has an essentially cylindrical volume.
  • the spring 12 is of the wire type, extends essentially for a semi-circumferential section, and is housed within a corresponding groove 20 formed in the bottom wall 15 of the cover 11 on the side which in use faces the mine 1.
  • the spring 12 has a portion 21 entirely housed within the groove 20 and a portion 22 which projects from this groove 20 and is able to exert in use a resilient thrust on the surface of the smaller base of the portion 4 of the mine 1 for the purpose of separating the cover 11 from the body 2 of the mine itself.
  • the spring 12 is retained within the groove 20 by means of a bridge 24 of the bottom wall 15 of the cover 11 in such a way as to cover a portion of the groove 20 in which an intermediate part of the spring 12 is housed.
  • This latter further has a folded end portion 25 (See Figure 5) which extends at 90° from the portion 21 and engages a corresponding through hole 26 formed in the bottom 15 of the cover 11 in such a way as to prevent the spring 12 from slipping along the above-mentioned groove 20.
  • This spring 12 has, finally, in a median zone of its portion 21, a deformed portion 27 in the form of a hump able to establish an interference in a transverse sense with the opposite walls of the groove 20 (See Figure 3) in such a way as to obtain a precise and constant positioning of the spring 12 with respect to this groove and therefore with respect to the cover 11.
  • the pin 13 is connected to the bottom wall 15 of the cover 11 by means of a fork element 32 having two wire-like arms 33, 34 which are joined together by a bridge portion 35 having a longitudinal slot 36.
  • the end of each arm 33, 34 engages an associated through hole 37, 38 in the bottom wall 15 of the cover 11 and further carries an associated transverse portion 41, 42 the dimensions of which are such as to prevent the associated arm 33, 34 from coming out of the above-mentioned through holes 37, 38.
  • the pin 13 has a transverse head portion 44 the dimensions of which are of the order of the bridge portion 35 of the fork element 32. Beneath this portion 34 and at a distance slightly greater than the thickness of the bridge portion 35 of the fork element 32 the pin 13 has a pair of diametrically opposite tabs 46, 47 the dimensions of which are such as to permit the passage thereof, with slight interference, into the interior of the slot 36.
  • the launching tube 50 has a side wall 51 which is closed at one end by means of a plug 52 and at the other end by an expulsion device 53 of known type.
  • the plug 52 is fixed internally to the wall 51 of the tube 5 by means of a plurality of gripper teeth 54 which engage an annular groove 55 formed on the inside of the said wall 51.
  • the cover 52 has an annular seat 56 which receives an annular seal 57 interposed between the plug 52 and the facing inner surface of the wall 51.
  • the device 53 is essentially a piston 59 movable axially with respect to the tubular wall 51 by the effect of the thrust exerted by a gas under pressure developed by the expulsion device 53 and acting on the surface of the piston 59 on the side opposite that facing the plug 52.
  • the operation of the device 10 is as follows.
  • the pin 13 is correctly inserted into the socket 8 and the cover 11 lies over the surface of the mine itself.
  • a portion 22 of the spring 12 is preloaded and therefore exerts on the facing surface of the mine 1 a thrust tending to maintain the cover 11 partially raised from the body 2 of the mine itself.
  • the displacement of the piston 59 causes the end plug 52 to blow off therefore permitting the mines 1 and the associated devices 10 to escape freely.
  • the separation of the device 10 from the body 2 of the mine 1 takes place initially by the effect of the spring 12 and subsequently by the fact that the body 11 is braked in a greater measure than the body of the mine 1 because of the particular shape of the cover 11 itself, which in practice constitutes an aerodynamic brake. This obviously causes the device 10 to fall separately from the mine 1 with consequent secure activation of the arming mechanism of this latter.
  • this device serves both the functions of separator between the stacked mines and of boundary member between a mine and the associated container which, in the illustrated example, is constituted by the launching tube 50.
  • the device 10 acts to complete the shape of the body 2 of the mine 1 in such a way as to obtain an overall volume of essentially cylindrical form which facilitates stacking as well as positioning with respect to the associated container.
  • the cover 11 introduces practically no additional increase in the axial dimension from that represented by the body 2 of each mine 1 so that the number of mines which can be housed within the interior of an associated container is not limited axially thereby.
  • the presence of the spring 12 facilitates the separation of the device 10 from the body 2 of each mine 1 in all cases and especially when the mine is launched by means of a ground mine sower such that the external ballistic phase after launch is rather short.
  • the operation of removal of the pin 13 from the associated seat 8 is particularly easy.
  • the device 10 described above can have modifications and variations introduced thereto without by this departing from the present invention.
  • the spring 12 rather than being constituted by a wire, could be made and positioned in any other way providing it exerts a resilient thrust tending to separate the cover 11 of the device 10 from the body 2 of the mine 1.
EP87103254A 1986-03-25 1987-03-06 Sicherheitseinrichtung, verwendbar für die Aktivierung von Streuminen Expired - Lifetime EP0244592B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103254T ATE57434T1 (de) 1986-03-25 1987-03-06 Sicherheitseinrichtung, verwendbar fuer die aktivierung von streuminen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT5318386U 1986-03-25
IT8653183U IT207899Z2 (it) 1986-03-25 1986-03-25 Dispositivo di sicurezza utilizzabile per l attivazione di mine semina bili

Publications (2)

Publication Number Publication Date
EP0244592A1 true EP0244592A1 (de) 1987-11-11
EP0244592B1 EP0244592B1 (de) 1990-10-10

Family

ID=11280639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103254A Expired - Lifetime EP0244592B1 (de) 1986-03-25 1987-03-06 Sicherheitseinrichtung, verwendbar für die Aktivierung von Streuminen

Country Status (6)

Country Link
EP (1) EP0244592B1 (de)
AT (1) ATE57434T1 (de)
DE (1) DE3765453D1 (de)
ES (1) ES2017946B3 (de)
GR (1) GR3001166T3 (de)
IT (1) IT207899Z2 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2428340A1 (de) * 1974-06-12 1975-12-18 Paul Beermann Uebersprengsicherer zug- und druckzuender
AT349360B (de) * 1976-04-23 1979-04-10 Redon Trust Unmagnetische tretmine
FR2547911A1 (fr) * 1983-06-27 1984-12-28 Lacroix E Tous Artifices Mine antichar dispersable a positionnement automatique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2428340A1 (de) * 1974-06-12 1975-12-18 Paul Beermann Uebersprengsicherer zug- und druckzuender
AT349360B (de) * 1976-04-23 1979-04-10 Redon Trust Unmagnetische tretmine
FR2547911A1 (fr) * 1983-06-27 1984-12-28 Lacroix E Tous Artifices Mine antichar dispersable a positionnement automatique

Also Published As

Publication number Publication date
ES2017946B3 (es) 1991-03-16
ATE57434T1 (de) 1990-10-15
DE3765453D1 (de) 1990-11-15
EP0244592B1 (de) 1990-10-10
IT8653183V0 (it) 1986-03-25
IT207899Z2 (it) 1988-02-22
GR3001166T3 (en) 1992-06-30

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