EP0853229B1 - Ceinture d'étanchéité pour projectile - Google Patents

Ceinture d'étanchéité pour projectile Download PDF

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Publication number
EP0853229B1
EP0853229B1 EP97112895A EP97112895A EP0853229B1 EP 0853229 B1 EP0853229 B1 EP 0853229B1 EP 97112895 A EP97112895 A EP 97112895A EP 97112895 A EP97112895 A EP 97112895A EP 0853229 B1 EP0853229 B1 EP 0853229B1
Authority
EP
European Patent Office
Prior art keywords
projectile
driving band
casing
openings
guide ring
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
EP97112895A
Other languages
German (de)
English (en)
Other versions
EP0853229A1 (fr
Inventor
Jacob Burri
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.)
RWM Schweiz AG
Original Assignee
Oerlikon Contraves Pyrotec AG
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 Oerlikon Contraves Pyrotec AG filed Critical Oerlikon Contraves Pyrotec AG
Publication of EP0853229A1 publication Critical patent/EP0853229A1/fr
Application granted granted Critical
Publication of EP0853229B1 publication Critical patent/EP0853229B1/fr
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
    • F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
    • F42B14/02—Driving bands; Rotating bands

Definitions

  • the invention relates to a guide ring for a projectile according to the preamble of patent claim 1 .
  • Such guide rings which mostly consist of metallic materials, are known, for example, from DE-OS 37 36 167 or DE-OS 35 08 053 .
  • Such guide rings have the disadvantage that the wear of the weapon barrel can be relatively high. However, the premature wear of the weapon barrel can be reduced if a suitable plastic is used as the material for the guide rings.
  • the manufacture, assembly and attachment of such guide rings is relatively cumbersome and expensive.
  • DE-OS 35 25 854 a similar guide ring has become known which is formed from two half rings which can be firmly connected to one another by a snap lock. However, this guide ring is not firmly connected to the projectile shell, but is arranged to slide on it, so that only a residual twist can be given to the projectile when it is fired.
  • a guide ring of the type mentioned is known.
  • This guide ring is part of an integral body designed as an intermediate sleeve, which extends from the sealing body to the center of the projectile tip with a varying inside and outside diameter.
  • the construction is relatively complex, partly due to the separate sealing body.
  • the invention has for its object a guide ring of the type mentioned to propose that does not have the disadvantages mentioned above.
  • the guide ring is not only firmly connected through openings in the projectile casing to a sealing body which is arranged on the rear of the projectile inside the projectile casing and is separate from the guide ring, but the guide ring and the sealing body are an integral element and become together with the sealing body during one step a manufacturing process by injecting a plastic into the shell through the open back.
  • 1 designates a casing which is formed from a projectile shell 2 and a projectile tip 3 firmly connected to the latter.
  • the projectile tip 3 which preferably consists of a heat-resistant, fiber-reinforced thermoplastic, is injected onto the projectile casing 3 in a first step of a manufacturing process, wherein it is anchored in grooves 4 which are arranged in the interior of the projectile casing 2 .
  • the projectile tip 3 has a centering 6 , not shown and described, in which a projectile body 5 is guided and held. The projectile body 5 is pushed into the centering 6 of the projectile tip 3 through the projectile casing 2 , which is open on the rear, in a second step of the manufacturing process.
  • the guide ring 7 with a guide ring is designated, which is embedded in a circumferential groove 8 of the projectile shell 2 .
  • the guide ring 7 is firmly connected through openings 9 in the projectile casing 2 to a sealing body 10 arranged on the rear of the projectile in the interior of the projectile casing 2 .
  • the openings 9 can be, for example, six bores offset by an angle of 60 °, which are arranged radially in the region of the circumferential groove 8 .
  • openings of a different shape and number are also possible.
  • the guide ring 7 is formed in a third step of the manufacturing process together with the sealing body 10 by injecting the same plastic used for the manufacture of the projectile tip 3 into the projectile casing 2 through its open rear side.
  • the spray material penetrates from the projectile casing 2 through the openings 9 into the circumferential groove 8 and into circumferential grooves 11, 12 arranged in the interior of the projectile casing 2 .
  • the spray material encloses the part of the projectile body 5 protruding from the centering 6 , so that it is firmly anchored in the projectile.
  • a toothing 13 is provided which is in engagement with the guide ring 7 and thus contributes to the transmission of the swirl to the projectile.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (5)

  1. Bague de guidage pour projectile, la bague de guidage (7)
    étant placée dans une encoche circulaire (8) d'une gaine de projectile (2) et,
    étant fermement raccordée, par des ouvertures (9) pratiquées dans la gaine de projectile (2), à une pièce d'étanchéité (10) placée à l'intérieur de la gaine de projectile (2) sur la face arrière de ce dernier,
    caractérisée en ce que,
    lors d'une étape d'un procédé de fabrication, la bague de guidage (7) est formée, avec la pièce d'étanchéité (10), par injection d'une matière plastique dans la gaine de projectile (2), à travers la face arrière de celle-ci.
  2. Bague de guidage conforme à la revendication 1
    caractérisée en ce que
    les ouvertures (9) sont des perçages placés de façon radiale dans la zone de l'encoche circulaire.
  3. Bague de guidage conforme à la revendication 2
    caractérisée en ce que
    sont prévues six ouvertures (9), décalées d'un angle de 60°.
  4. Bague de guidage conforme à la revendication 1
    caractérisée en ce que
    un engrenage (13), se trouvant en prise avec la bague de guidage (7), est prévu dans l'encoche circulaire (8).
  5. Bague de guidage conforme à la revendication 1
    caractérisée en ce que
    la bague de guidage (7) est constituée d'une matière thermoplastique à haute résistance à chaud et renforcée par fibres.
EP97112895A 1997-01-13 1997-07-26 Ceinture d'étanchéité pour projectile Expired - Lifetime EP0853229B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH5897 1997-01-13
CH58/97 1997-01-13
CH00058/97A CH696601A5 (de) 1997-01-13 1997-01-13 Geschoss und Führungsring für ein Geschoss.

Publications (2)

Publication Number Publication Date
EP0853229A1 EP0853229A1 (fr) 1998-07-15
EP0853229B1 true EP0853229B1 (fr) 2002-01-16

Family

ID=4178362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112895A Expired - Lifetime EP0853229B1 (fr) 1997-01-13 1997-07-26 Ceinture d'étanchéité pour projectile

Country Status (12)

Country Link
US (1) US5909003A (fr)
EP (1) EP0853229B1 (fr)
JP (1) JPH10206098A (fr)
KR (1) KR19980070003A (fr)
CA (1) CA2215252A1 (fr)
CH (1) CH696601A5 (fr)
CZ (1) CZ285158B6 (fr)
DE (1) DE59706011D1 (fr)
NO (1) NO306883B1 (fr)
PL (1) PL323426A1 (fr)
SG (1) SG71044A1 (fr)
ZA (1) ZA979140B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2171823T3 (es) * 1997-01-14 2002-09-16 Contraves Pyrotec Ag Proyectil y procedimiento para su fabricacion.
SE520050C2 (sv) * 2000-03-30 2003-05-13 Bertil Johansson Sammansatt projektil samt patron innehållande sådan projektil
DE50209260D1 (de) * 2001-03-14 2007-03-08 Rwm Schweiz Ag Projektil und Verfahren zu dessen Herstellung
US6668814B1 (en) 2002-08-12 2003-12-30 The United States Of America As Represented By The Secretary Of The Navy Mechanism for deploying cylindrical objects from a spinning container
US20060027128A1 (en) * 2004-02-10 2006-02-09 Hober Holding Company Firearms projectile having jacket runner
DE102008029394A1 (de) * 2008-06-23 2009-12-24 Rheinmetall Waffe Munition Gmbh Treibkäfiggeschoss und Verfahren zu seiner Herstellung
SE536320C2 (sv) * 2011-04-14 2013-08-20 Bae Systems Bofors Ab Kvarsittande slirande gördel för en projektil
US11333472B1 (en) 2018-07-16 2022-05-17 Vista Outdoor Operations Llc Reduced stiffness barrel fired projectile
US11959734B2 (en) * 2022-01-17 2024-04-16 Seismic Ammunition, Inc. Training cartridge

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910194A (en) * 1971-02-01 1975-10-07 Hercules Inc Projectile rotating band
DE2758692A1 (de) * 1977-12-29 1979-07-05 Diehl Gmbh & Co Fuehrungsband
DE3142636C2 (de) * 1981-10-28 1984-06-14 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Geschoßkörper mit einem Kunststofführungsband und Verfahren zu seiner Herstellung
DE3334022A1 (de) * 1983-09-21 1985-04-04 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Geschosskoerper mit kunststoffuehrungsband
DE3508053A1 (de) * 1985-03-07 1986-09-18 Rheinmetall GmbH, 4000 Düsseldorf Wuchtgeschoss
DE3525854A1 (de) * 1985-07-19 1989-01-05 Mauser Werke Oberndorf Fluegelstabilisiertes pfeilgeschoss
DE3617415C2 (de) * 1986-05-23 1995-09-07 Mauser Werke Oberndorf Unterkalibriges Treibspiegelgeschoß
DE3736167A1 (de) * 1987-10-26 1989-05-03 Bongers Hermann Treibkonus-pfeilgeschoss mit fliehkraftbetaetigter treibkonustrennung

Also Published As

Publication number Publication date
CZ285158B6 (cs) 1999-05-12
NO973834L (no) 1998-07-14
KR19980070003A (ko) 1998-10-26
NO306883B1 (no) 2000-01-03
CH696601A5 (de) 2007-08-15
NO973834D0 (no) 1997-08-20
CZ282097A3 (cs) 1999-02-17
SG71044A1 (en) 2000-03-21
CA2215252A1 (fr) 1998-07-13
PL323426A1 (en) 1998-07-20
EP0853229A1 (fr) 1998-07-15
US5909003A (en) 1999-06-01
ZA979140B (en) 1998-05-11
JPH10206098A (ja) 1998-08-07
DE59706011D1 (de) 2002-02-21

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