EP0502793A1 - Übungsmine - Google Patents

Übungsmine Download PDF

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Publication number
EP0502793A1
EP0502793A1 EP92420046A EP92420046A EP0502793A1 EP 0502793 A1 EP0502793 A1 EP 0502793A1 EP 92420046 A EP92420046 A EP 92420046A EP 92420046 A EP92420046 A EP 92420046A EP 0502793 A1 EP0502793 A1 EP 0502793A1
Authority
EP
European Patent Office
Prior art keywords
ballast
legs
mine according
fittings
exercise
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
EP92420046A
Other languages
English (en)
French (fr)
Other versions
EP0502793B1 (de
Inventor
Pascal Bourgin
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 EP0502793A1 publication Critical patent/EP0502793A1/de
Application granted granted Critical
Publication of EP0502793B1 publication Critical patent/EP0502793B1/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
    • F42B8/00—Practice or training ammunition
    • F42B8/28—Land or marine mines; Depth charges

Definitions

  • the present invention relates to military training equipment and it relates, more particularly, to the dummy mines used for the exercise and training of personnel, but also to equipment used for reloading, transport, storage, shooting. .
  • the invention relates, more specifically, to the field of land and surface exercise mines.
  • exercise mines are generally used, which are representative of the shape and mass of actual mines , while being free of explosive charges.
  • Such mines include a generally barrel shaped body having an axis of symmetry, most often also of revolution.
  • a body is constituted by two housings of elastomer or similar material, delimiting an internal cavity which is occupied by a ballast made of a dense material.
  • the two housings which are symmetrical with respect to a transverse median plane perpendicular to the axis of revolution, are secured by steel tie rods, of axial direction, passing through the housings and which are riveted externally to the two transverse faces which the latter define for the body.
  • the riveting of the ends of the tie rods is also used to ensure the immobilization of two outer rings with transverse faces and on which are welded elastic tabs extending externally at the periphery of the body, in alternating radial directions from one side to the other, each presenting a diverging inclination from said corresponding face towards the median transverse joint plane of the two housings.
  • the elastic tabs have the function of ensuring the positioning of the mine, whatever the nature of the terrain.
  • Such dummy or exercise mines give satisfaction for the function which they must assume, but have a drawback mainly due to their cost of manufacturing, because of the large number of elementary parts which it is advisable to carry out and to assemble to ensure their constitution. It is, in fact, necessary to produce and assemble thirteen different elementary parts, which, undoubtedly, raises the overall manufacturing price and increases the load of storage, assembly and assembly for each mine.
  • the object of the invention is to remedy this drawback by proposing a new structure making it possible to significantly reduce the cost price by reducing the number of elementary parts entering into the constitution of a mine and, above all also, by eliminating the most assembly operations made compulsory by the prior art.
  • Another object of the invention is also to improve the mechanical strength, in particular of the elastic lugs, by eliminating the risks of corrosion, mainly attached to the mode of connection by welding between the elastic lugs and the rings carrying them according to the prior art.
  • Fig. 1 is a plan view of an exercise mine according to the invention.
  • Fig. 2 is a sectional elevation taken along line II-II of FIG. 1.
  • Fig. 3 is a perspective, partially broken away, showing in more detail some of the constituent elements of the invention.
  • the exercise mine according to the invention comprises a body 1 , of generally barrel shape, having an axis of symmetry or of revolution xx ′ .
  • the body 1 has two transverse planar faces 2 and 3 , mutually parallel and perpendicular to the axis xx ′ .
  • the transverse faces 2 and 3 limit the body 1 in combination with a periphery 4 which can be smooth, cut or, again, made to include housings 5 angularly equidistant, the function of which appears in the following.
  • the body 1 is constituted by a ballast 6 which can be produced in several different ways, insofar as it responds to a low cost price, to the existence of a certain density, generally between 2.3 and 2 , 5, to good temperature resistance up to about 220 ° C., to good mechanical resistance, more particularly to compression stresses and to good inertia to external chemical aggressive agents.
  • a ballast 6 which can be produced in several different ways, insofar as it responds to a low cost price, to the existence of a certain density, generally between 2.3 and 2 , 5, to good temperature resistance up to about 220 ° C., to good mechanical resistance, more particularly to compression stresses and to good inertia to external chemical aggressive agents.
  • the ballast 6 can be constituted by a concrete mass, reinforced or not, of generally cylindrical shape, the periphery of which is, for example, surrounded by an envelope 7 , called a connection, which can, by example, be made of polyvinyl chloride.
  • the ballast 6 can also be constituted by a single mass of another material or, again, by an association of plates or blocks, possibly linked together by any suitable means. In all cases, the ballast 6 is made to constitute a unitary mass of a compact nature, the center of gravity of which must be located on the axes of axial and transverse symmetry.
  • the body 1 is also constituted by an overmolding 8 in any suitable material and, more particularly, in polyester-elastometer, known under the trade name of PEBAX .
  • the overmolding 8 is carried out in one piece to completely surround the ballast 6 , both on the periphery and on the transverse faces of the latter.
  • overmolding conditions in pressure and in temperature, are determined by the choice of the material constituting the overmolding 8 and must be considered as pertaining to the known technique. However, it should also be remembered that the characteristics of the material or materials constituting the ballast 6 must be chosen so that the latter has sufficient mechanical resistance to compression, to the molding temperature, as well as to the possibly aggressive characteristics of the components of the material of the overmolding 8 .
  • the body 1 is also associated with elastic tabs 9 which extend externally at the periphery 4 , from the transverse faces 2 and 3 , in alternating radial directions from one face to the other, as appears more particularly from figs. 1 and 3 .
  • the legs 9 are identified with the index 2 or 3 , depending on whether they belong or whether they originate from the transverse face 2 or 3 .
  • the legs 92 and 93 which are angularly alternated from one face to the other, are also arranged equidistant angularly, each diverging from the corresponding face towards a transverse median plane P of the body 1 and perpendicular to the axis of symmetry xx ′ .
  • the legs 92 and 93 are constituted by the folded end portions of fittings 10 in "U" which are organized in the form of two sets 112 and 113 .
  • Each set includes two fittings 10 , the central cores 12 of which are arranged at right angles to be linked by their central part.
  • the connection of the two constitutive fittings of each set can be ensured in any suitable manner, in particular by a pin, a rivet or the like 13 , in any suitable material, chosen to avoid the risks of possible corrosion.
  • 112 and 113 sets are included in overmolding 8 in which they can be completely submerged or, simply, partially coated if, for example, the fittings 10 are initially shaped to fit the ballast 6 .
  • the sets 112 and 113 are arranged in reverse nesting, on either side of the ballast 6 , being offset by 45 ° in the present case, so that the wings 14 extend, successively, alternately, at the outer periphery of the ballast 6 , so that the tabs 9 which they constitute by their folded end portion meet the implantation conditions listed above.
  • each set 11 is made up of two fittings 10 and that the body 6 is associated with two sets, so that the dummy lead has eight elastic tabs 9 .
  • a different composition could be chosen by composing each set 11 , for example from three fittings 10 .
  • the sets 112 and 113 , as well as the ballast 6 are arranged in the mold for forming the overmolding 8 , so that the different tabs 9 coincide with the positive impressions.
  • the housings 5 of an axial nature. These housings are intended to allow the elastic folding of the different tabs 9 to facilitate the establishment, storage or loading in cylindrical tubes or containers for transport or launch.
  • an exercise mine according to the invention is constituted in a single operation by forming the overmolding 8 around the ballast 6 and the sets 112 and 113 previously placed in the mold.
  • the mine according to the invention offers a structure which is more mechanically resistant and less subject to the risks of corrosion, more particularly in the areas of attachment and bending of the legs. 9 which are formed integrally by the fittings 10 , embedded in the body 1 , which increases the resistance of the legs to impact upon impact on the ground.
  • the proposed structural embodiment according to the invention also makes it possible to reduce the number of constituent parts, since two legs 9 are formed by a single fitting 10 , only by folding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)
  • Clamps And Clips (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
EP92420046A 1991-03-05 1992-02-12 Übungsmine Expired - Lifetime EP0502793B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9102586 1991-03-05
FR9102586A FR2673709B1 (fr) 1991-03-05 1991-03-05 Mine d'exercice.

Publications (2)

Publication Number Publication Date
EP0502793A1 true EP0502793A1 (de) 1992-09-09
EP0502793B1 EP0502793B1 (de) 1994-09-14

Family

ID=9410327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92420046A Expired - Lifetime EP0502793B1 (de) 1991-03-05 1992-02-12 Übungsmine

Country Status (4)

Country Link
US (1) US5216198A (de)
EP (1) EP0502793B1 (de)
DE (1) DE69200400T2 (de)
FR (1) FR2673709B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6481327B1 (en) * 2000-06-09 2002-11-19 Alliant Techsystems Inc. Reuseable training dispenser
US6539871B2 (en) * 2001-03-29 2003-04-01 Alliant Techsystems Inc. Degradable practice mine
US6688234B2 (en) * 2002-05-09 2004-02-10 Paintball Combat Llc Symmetrical paint ball land mine
US6640721B1 (en) * 2002-08-01 2003-11-04 The United States Of America As Represented By The Secretary Of The Navy Non-lethal airbag munition
US20070151550A1 (en) * 2005-12-31 2007-07-05 Fitting Adam E Paintball launching device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505172A1 (de) * 1985-02-15 1986-08-21 Pyrotechnische Fabrik F. Feistel GmbH + Co KG, 6719 Göllheim Simulator fuer minendetonation
DE3714453C1 (en) * 1987-04-30 1988-12-01 Dynamit Nobel Ag Practice explosive body which can be removed again from practice objects non-destructively

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448708B1 (fr) * 1972-02-11 1985-06-14 France Etat Mine a charge formee
FR2475716B2 (fr) * 1980-02-11 1985-11-29 France Etat Mine dispersable bidirectionnelle a charge formee
US4969398A (en) * 1989-12-04 1990-11-13 The United States Of America As Represented By The Secretary Of The Navy Lane marker
US5069136A (en) * 1990-09-14 1991-12-03 Honeywell Inc. Two-stage release mechanism and method for self-righting a load

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505172A1 (de) * 1985-02-15 1986-08-21 Pyrotechnische Fabrik F. Feistel GmbH + Co KG, 6719 Göllheim Simulator fuer minendetonation
DE3714453C1 (en) * 1987-04-30 1988-12-01 Dynamit Nobel Ag Practice explosive body which can be removed again from practice objects non-destructively

Also Published As

Publication number Publication date
US5216198A (en) 1993-06-01
FR2673709B1 (fr) 1993-05-28
FR2673709A1 (fr) 1992-09-11
EP0502793B1 (de) 1994-09-14
DE69200400D1 (de) 1994-10-20
DE69200400T2 (de) 1995-02-09

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