EP0257235A2 - Abwurf-Mine - Google Patents

Abwurf-Mine Download PDF

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Publication number
EP0257235A2
EP0257235A2 EP87109246A EP87109246A EP0257235A2 EP 0257235 A2 EP0257235 A2 EP 0257235A2 EP 87109246 A EP87109246 A EP 87109246A EP 87109246 A EP87109246 A EP 87109246A EP 0257235 A2 EP0257235 A2 EP 0257235A2
Authority
EP
European Patent Office
Prior art keywords
fact
container body
mine
diameter
separator element
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Withdrawn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
EP87109246A
Other languages
English (en)
French (fr)
Other versions
EP0257235A3 (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
Publication of EP0257235A2 publication Critical patent/EP0257235A2/de
Publication of EP0257235A3 publication Critical patent/EP0257235A3/de
Withdrawn legal-status Critical Current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

Definitions

  • the present invention relates to a ventral mine, particularly, but not exclusively, an anti-lorry mine of the type comprising a main charge and an auxiliary charge which is positioned above the main charge and separated from this latter by means of an element ("liner") of suitable form.
  • the auxiliary charge is caused to explode before the main charge for the purpose of expelling everything above the said separator element, in particular the cover of the mine, as well as possible camouflaging material conveniently disposed above the mine itself.
  • such mines essentially comprise a container within which are housed both the main charge, contained in a suitable cup-shape body, and the secondary charge essentially located at the mouth of the cup-shape body and separated from the main charge by means of the said element.
  • the container there are also housed all those sensors and electronic and mechanical devices for the activation of the auxiliary charge and the main charge.
  • the firing of the main charge causes the development of gases which, passing through air spaces which are located between the separator element and the said container flow, in particular, into an inner chamber of the container, positioned between the container itself and the cup-shape body which receives the main charge.
  • gases as well as being of no use for the purpose of expelling the material positioned above the said separator element, also cause a deformation of the container walls delimiting the said chamber and, in certain cases, cause a premature activation of the main charge.
  • the opening of a portion of the container is sometimes facilitated by the adoption of suitable fracture lines along one wall of the container, towards which the auxiliary and main charges face.
  • the object of the present invention is that of providing a ventral mine able to overcome the above-listed disadvantages presented by mines of known type.
  • the said object is achieved with the present invention in that it relates to a ventral mine having a container body with a first chamber housing a main charge and a second chamber housing an auxiliary cover-opening charge, characterised by the fact that it includes means for sealingly separating the said first chamber and the said second chamber.
  • ventral mine particularly an underbody, shell effect anti-vehicle mine is generally indicated with the reference numeral 1, of the type essentially comprising a main charge 2 and an auxiliary charge 3 disposed above the main charge 2 and having a cover-removing function.
  • the main charge 2 is housed within an essentially cup-shape body 4 over which lies a separator element 5 having an essentially inverted cone structure with an annular base edge 6 which receives a corresponding upper edge 7 of the cup-shape body 4.
  • the conical separator element 5 receives the auxiliary charge 3 within its vertex, and, above this, a suitable sensor device 8 of known type operable to control the firing of the charge 3 itself.
  • the mine 1 further includes a container body 10 essentially comprising an upper half-shell 11 and a lower half-shell 12 which are sealingly joined together enclosing the charges 2 and 3, the associated separator element 5, the sensor device 8 and other control devices of known type generally indicated 13 all within their interior.
  • the upper half-shell 11 of the container 10 has a wall 15 inwardly from which extends an internally threaded annular projection 16 which is engaged, in use, by a corresponding threaded peripheral portion 17 of the edge 16 of the separator element 5.
  • the edge 6 engages a corresponding facing annular surface of the wall 15 in such a way as to define a chamber 19 essentially delimited by the separator element 5 and the wall 15 of the half-shell 11.
  • the effect of the continuous connection between the separator element 5 and the half-shell 11 is that the chamber 19 is essentially sealingly separated from a corresponding chamber 20 delimited by the facing surfaces of the half-shells 11 and 12 and the cup-shape body 4 containing the main charge 2.
  • the wall 15 of the half-shell 11 further has, on its outer face, a pair of concentric annular projections, respectively 21 and 22, between which there is an annular groove 23.
  • the projection 21 extends essentially from the part opposite the threaded projection 16, whilst the projection 22 has a diameter less than the projection 21.
  • the wall 15 has an annular slot 25 with a triangular cross-section, essentially constituting a pre-fracture line of the wall 15 itself.
  • FIG 2 the structure of the mine 1 is illustrated after explosion of the auxiliary charge 3 has taken place. It is noted in particular that the wall 15 of the half-shell 11 has been caused to spring up in correspondence with the pre-fracture slot 25.
  • the continuous type coupling between the separator element 5 and the half-shell 11 of the container 10 limits the volume exposed to the gas pressure developed by the auxiliary charge 3 essentially to only the chamber 19.
  • the mine 1 described above can have modifications and variations introduced thereto without by this departing from the present invention.
  • the coupling between the edge 6 of the separator element 5 and the projection 16 of the half-shell 11 of the container 10 could also be achieved in any other way as long as it is of continuous type, however, and offers the greatest possible seal.
  • this coupling could be effected by adopting snap-engagement means with the interposition of a resilient sealing ring.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing Of Solid Wastes (AREA)
  • Cyclones (AREA)
EP87109246A 1986-07-01 1987-06-26 Abwurf-Mine Withdrawn EP0257235A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT5358886U IT208023Z2 (it) 1986-07-01 1986-07-01 Mina ventrale di tipo perfezionato
IT5358886U 1986-07-01

Publications (2)

Publication Number Publication Date
EP0257235A2 true EP0257235A2 (de) 1988-03-02
EP0257235A3 EP0257235A3 (de) 1989-07-19

Family

ID=11283899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109246A Withdrawn EP0257235A3 (de) 1986-07-01 1987-06-26 Abwurf-Mine

Country Status (2)

Country Link
EP (1) EP0257235A3 (de)
IT (1) IT208023Z2 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT146782B (de) * 1934-08-23 1936-08-10 Elektrisk Bureau As Kupplungsvorrichtung für hebbare elektrische Lampen.
US3216354A (en) * 1952-07-10 1965-11-09 Marshall P Bearce Land mine
EP0157902A2 (de) * 1983-09-07 1985-10-16 Dynamit Nobel Aktiengesellschaft Hohlladungsmine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT146782B (de) * 1934-08-23 1936-08-10 Elektrisk Bureau As Kupplungsvorrichtung für hebbare elektrische Lampen.
US3216354A (en) * 1952-07-10 1965-11-09 Marshall P Bearce Land mine
EP0157902A2 (de) * 1983-09-07 1985-10-16 Dynamit Nobel Aktiengesellschaft Hohlladungsmine

Also Published As

Publication number Publication date
IT208023Z2 (it) 1988-03-31
IT8653588V0 (it) 1986-07-01
EP0257235A3 (de) 1989-07-19

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Inventor name: TOPA, FERDINANDO