EP1914507A1 - Arrangement pour grenade - Google Patents

Arrangement pour grenade Download PDF

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Publication number
EP1914507A1
EP1914507A1 EP06122573A EP06122573A EP1914507A1 EP 1914507 A1 EP1914507 A1 EP 1914507A1 EP 06122573 A EP06122573 A EP 06122573A EP 06122573 A EP06122573 A EP 06122573A EP 1914507 A1 EP1914507 A1 EP 1914507A1
Authority
EP
European Patent Office
Prior art keywords
shell
grenade
section
connecting bridges
arrangement
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Withdrawn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
EP06122573A
Other languages
German (de)
English (en)
Inventor
Henrik Irdell
Niclas Ljungwald
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.)
Saab AB
Original Assignee
Saab AB
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 Saab AB filed Critical Saab AB
Priority to EP06122573A priority Critical patent/EP1914507A1/fr
Publication of EP1914507A1 publication Critical patent/EP1914507A1/fr
Withdrawn legal-status Critical Current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
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/067—Mounting or locking missiles in cartridge cases

Definitions

  • the present invention relates to an arrangement for a grenade, in particular a releasable coupling between a cartridge case and a shell for light anti-armour weapons as Carl Gustav, AT4 and AT4CS.
  • a grenade of this kind comprises a shell and a cartridge case with a first section housing a propellant and a second section in which said shell is fitted by means of a releasable coupling.
  • a conventional releasable coupling of the initially mentioned kind is configured by means of a grooving machine or by means of a glue line, which joint is performed in order to join together the case and shell until firing off of the grenade.
  • One object of the present invention is to provide an arrangement, by means of which it is possible to provide a more reliable grenade than before.
  • FIG. 1 and 2 illustrate perspective views of a cartridge case 2, in one end of which a shell 4 is fitted by means of a releasable coupling, for example a screw fastening of a conventional kind.
  • the cartridge case 2 is divided into a first section 6 and a second section 8, by means of an intermediate section 10 provided with break indications or notches 12, which are extended partially around the perimeter of the cartridge case 2.
  • the first and second sections 6 and 8 respectively are held together by means of a plurality of connecting bridges 14 of case material, which are formed between said break indications 12 provided in said intermediate section 10 and one of which is shown in figs. 1-3.
  • said plurality of connecting bridges 14 are evenly spaced around the perimeter of the intermediate section 10.
  • said plurality can be predetermined to a number of three alternately four connecting bridges 14, 14'.
  • the number of connecting bridges 14, 14' is depending on the actual weight of the shell to be loaded in the cartridge case and therefore other desirable numbers can be picked depending on the relevant situation.
  • Said plurality of connecting bridges 14, 14' constitute a jointing 16, 16' intended to be torn when firing off the grenade.
  • the number and form of the connecting bridges 14 are geometrically controllable variables, which determine the strength of the jointing 16 and by that the release force required in firing.
  • said variables can, in a simple way, be adjusted to burst at a desired loading stress.
  • the jointing 16 according to the invention brings about less loading spread, compared to the prior art, and can cope better with drop tests, as it is more elastic than prior art jointings.
  • the shell can be provided with a thread 18 and screwed into a corresponding thread in the first section, even if it also might be attached to the cartridge case e.g. by means of other suitable screw fastening means.
  • the natural choice of material for the cartridge casing would be the usual metal, e.g. aluminium, brass etc. or can comprise carbon fibre reinforced polymeric resin or another similar relatively elastic material. Therefore, in turn the jointing 16 according to the invention is configured with a certain degree of inherent elasticity, which makes it insensitive to impact by strokes and bumps and would withstand drop tests without the coupling being deformed or broken.
  • the above described solution results in as small a variation spread as possible in the releasing force from a time to another and the best opportunity for a reproducible releasing force even for different temperatures.
  • a further advantage is that the releasing force might be varied in a simple way, by adjusting the form and number of connecting bridges 14 of case material in dependency of the actual weight of an appropriate shell 4. For example, for a case thickness of approximately 1 mm, a notch 12 of approximately 2 mm wideness and four connecting bridges with an arc length of approximately 2,5 mm would be appropriate to achieve a release force of 5 KN.
  • IM-requirements are easy to meet simply by unscrewing the shell from the cartridge case and store the shell separated from the cartridge case housing the propellant.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
EP06122573A 2006-10-19 2006-10-19 Arrangement pour grenade Withdrawn EP1914507A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06122573A EP1914507A1 (fr) 2006-10-19 2006-10-19 Arrangement pour grenade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06122573A EP1914507A1 (fr) 2006-10-19 2006-10-19 Arrangement pour grenade

Publications (1)

Publication Number Publication Date
EP1914507A1 true EP1914507A1 (fr) 2008-04-23

Family

ID=37831694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06122573A Withdrawn EP1914507A1 (fr) 2006-10-19 2006-10-19 Arrangement pour grenade

Country Status (1)

Country Link
EP (1) EP1914507A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2219007A1 (fr) 2009-02-12 2010-08-18 Nexter Munitions Procédé de fixation d'un projectile en matière plastique sur un étui métallique et projectile permettant la mise en oeuvre de ce procédé
US7886649B2 (en) 2007-12-17 2011-02-15 Saab Ab Weapon system
WO2014146170A1 (fr) 2013-03-19 2014-09-25 Van Reesema Fergus William Siewertsz Projectile à mouvement de rotation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005265A1 (fr) * 1985-03-05 1986-09-12 Nico-Pyrotechnik Hanns-Jürgen Diederichs Gmbh & Co Munition a cartouche
DE3918005A1 (de) 1988-09-22 1990-04-05 Rheinmetall Gmbh Granatengeschoss
DE19527621A1 (de) * 1995-07-28 1997-01-30 Nico Pyrotechnik Patronierte Munition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005265A1 (fr) * 1985-03-05 1986-09-12 Nico-Pyrotechnik Hanns-Jürgen Diederichs Gmbh & Co Munition a cartouche
DE3918005A1 (de) 1988-09-22 1990-04-05 Rheinmetall Gmbh Granatengeschoss
DE19527621A1 (de) * 1995-07-28 1997-01-30 Nico Pyrotechnik Patronierte Munition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7886649B2 (en) 2007-12-17 2011-02-15 Saab Ab Weapon system
EP2219007A1 (fr) 2009-02-12 2010-08-18 Nexter Munitions Procédé de fixation d'un projectile en matière plastique sur un étui métallique et projectile permettant la mise en oeuvre de ce procédé
WO2014146170A1 (fr) 2013-03-19 2014-09-25 Van Reesema Fergus William Siewertsz Projectile à mouvement de rotation
EP2976592A4 (fr) * 2013-03-19 2016-11-16 Van Reesema Fergus William Siewertsz Projectile à mouvement de rotation

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