EP0754929B1 - Dispositif pour fixation d'une douille à un projectile - Google Patents

Dispositif pour fixation d'une douille à un projectile Download PDF

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Publication number
EP0754929B1
EP0754929B1 EP96102062A EP96102062A EP0754929B1 EP 0754929 B1 EP0754929 B1 EP 0754929B1 EP 96102062 A EP96102062 A EP 96102062A EP 96102062 A EP96102062 A EP 96102062A EP 0754929 B1 EP0754929 B1 EP 0754929B1
Authority
EP
European Patent Office
Prior art keywords
elastic ring
cartridge
projectile
peripheral groove
sealing washer
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
EP96102062A
Other languages
German (de)
English (en)
Other versions
EP0754929A1 (fr
Inventor
Karlheinz Fehrenbach
Kurt Meng
Jakob 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 EP0754929A1 publication Critical patent/EP0754929A1/fr
Application granted granted Critical
Publication of EP0754929B1 publication Critical patent/EP0754929B1/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
    • F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
    • F42B33/001—Devices or processes for assembling ammunition, cartridges or cartridge elements from parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49909—Securing cup or tube between axially extending concentric annuli
    • Y10T29/49913—Securing cup or tube between axially extending concentric annuli by constricting outer annulus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49934—Inward deformation of aperture or hollow body wall by axially applying force

Definitions

  • the invention relates to a device for fastening a cartridge case to a projectile according to the preamble of claim 1 and to a use of the device according to claim 7 .
  • the device can be used for different floors, especially for Sub-caliber bullets with a sabot, the at least one circumferential groove on Sabot is provided and the cartridge case by notching on the circumferential groove the sabot of the floor can be connected.
  • sabot In the case of sub-caliber bullets, also known as sabot projectiles, the actual projectile body is encased by a so-called sabot, which is thrown off shortly after the shot.
  • a sabot known for example with EP-A1-0 624 774 for a wing-stabilized lower-caliber floor is composed of a sabot mirror body and a sabot jacket.
  • a circumferential groove is provided on the sabot body, wherein the cartridge case can be connected at this point by notching to the sabot carrying the projectile.
  • Such a connection must be tight, so that the required high explosion pressure can build up during ignition and the powder in the cartridge case is protected against the ingress of liquids.
  • the CH-489 288 and US-4,291,609 tries not to deform the cartridge sleeve material in a conventional manner by means of rigid deformation elements, but use as deformation elements elastic bodies or rings to, which surround the projectile in the region of the circumferential groove, and to provide means for radially inwardly deforming these elastic bodies or rings so that they exert pressure on the sleeve material, as a result of which the latter is pressed into the circumferential groove.
  • an elastic body in the form of a cylinder jacket is used as the deformation element, which has a relatively small wall thickness and a relatively large height.
  • a tire-shaped bubble which can be filled with a hydraulic fluid that can be pressurized and thereby deforms the hollow cylinder, serves as a means for deforming the cylinder jacket.
  • CH-489 288 describes a device in which the elastic deformation body has approximately the shape of a ring with an almost square radial section.
  • This ring is located in a chamber which is delimited by a cylindrical extension of a pressure piece and a die with a bore, and through which this extension projects, the pressure piece and the die being displaceable in the axial direction relative to one another.
  • One end face of the elastic ring faces the end face of the attachment of the pressure piece.
  • the invention is therefore based on the object in the preamble of claim 1, starting from a prior art according to CH-489 288 to propose a device of the type mentioned, by means of which, while avoiding the disadvantages mentioned above, a perfect tight connection between existing steel sheet Cartridge cases and bullets can be produced. Furthermore, it is an object of the invention to propose a use of the new device in the manufacture of sub-caliber bullets.
  • a pressure piece for receiving the projectile, which has a cylindrical extension which projects into a bore in a die.
  • an elastic ring is arranged, one end face of the cylindrical extension of the Thrust piece is facing, and its other end face via a sealing washer on two slider guided perpendicular to the longitudinal axis of the cartridge rests in the die.
  • the die In the notching, the die is pushed against the pressure piece with the slides, whereby the elastic ring is compressed over the sealing washer and in the radial direction is deformed inwards so that the sleeve mouth is pressed into the circumferential groove.
  • the elastic ring is made of Vulkolan type Adiprene.
  • the sealing washer is made of hardened spring steel of 0.3 mm, for example Thickness, the edge of the inner diameter facing the elastic ring Sealing disc is rounded.
  • 1 denotes a receptacle, in which a pressure piece 2 is arranged, which is held in the receptacle 1 by a locking ring 3.
  • the pressure piece 2 has a cylindrical projection 4 , which likewise extends into a bore 5 Arranged in the receiving sleeve 1 die 6 protrudes.
  • the pressure piece 2 receives the bullet of a cartridge 7 during the cartridge described in more detail below, the bullet tip 8 being guided in a centering 9 and a conical part of the cartridge case 10 being received in the die 6 .
  • an elastic ring 14 is arranged, which consists, for example, of Vulkolan of the Adipren type.
  • the outer diameter of the elastic ring 14 corresponds to the diameter of the bore 5 , while its inner diameter is larger than the diameter of the sleeve mouth 11 or the projectile.
  • One end face of the elastic ring 14 faces the end face of the cylindrical extension 4 , while the other end face rests against two slides 16 via a sealing washer 15 .
  • the slides 16 are guided perpendicular to the longitudinal axis 17 of the cartridge 7 in the die 6 and can be moved by means of double-acting cylinders 18 fastened to brackets 18.1 , for example pneumatically operated.
  • the sealing washer 15 is preferably made of hardened spring steel 0.3 mm thick. The outer diameter of the sealing disk 15 corresponds to the diameter of the bore 5 , while its inner diameter is a little more than the diameter of the sleeve mouth 11 or the projectile.
  • a compression spring 20 is arranged in the receiving bushing 1 , which rests on the one hand on a shoulder 21 of the pressure piece 2 and on the other hand on a shoulder 22 of the die 6 .
  • the cartridge 7 is held at its rear end on a base 23 movable in the longitudinal axis 17 of the cartridge 7 by a resilient insert 24 and a holder 25 .
  • the device described above works as follows: By means of a push-in cylinder, not shown, for example, which can be operated hydraulically, the base 23 with the cartridge 7 is raised and the projectile is pushed through the die 6 into the pressure piece 2 . The slides 16 are then pushed inwards by the two cylinders 18 until they abut the cartridge case 10 . Here, the gap given by the play between the sealing disk 15 and the cartridge case 10 is bridged by the slides 16 ( FIGS. 2 and 3 ).
  • the receiving bushing 1 and with it the die 6 with the slides 16 are raised by means of a notch cylinder, which is also, for example, hydraulically actuated, not further shown, against the fixed pressure piece 2 and the compression spring 20 and the elastic ring 14 is pressed together via the sealing disk 15 .
  • the elastic ring 14 is deformed radially inwards and the sleeve mouth 11 is pressed into the circumferential groove 13 of the sabot 12 ( FIG. 3 ).
  • the sealing disk 15 protects the elastic ring 14 from the movement of the slider 16 , the wear of the elastic ring 14 during the small movement towards the slider 16 being very low because of the rounded edge 19 of the sealing disk 15 .
  • the notch cylinder and then the two cylinders 18 are moved back again, so that the receiving bushing 1 , the die 6 and the two slides 16 assume the starting position again.
  • the push-in cylinder then moves back so that the notched cartridge 7 can be removed from the base 23 and a new one can be put on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Automatic Assembly (AREA)
  • Sealing Devices (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Rotary Presses (AREA)
  • Gasket Seals (AREA)

Claims (7)

  1. Dispositif de fixation d'un culot sur un projectile, muni d'au moins une rainure périphérique (13) et auquel le culot (10) peut être raccordé par emboítage sur la rainure périphérique, ce dispositif comprenant
    une bague élastique (14) placée dans la zone de l'orifice de la douille (11) et de la rainure périphérique (13), et
    des mécanismes grâce auxquels la bague élastique peut être introduite en direction axiale, de sorte que la bague élastique puisse se raccourcir en direction axiale et se déformer vers l'intérieur en direction radiale, afin de pousser le culot dans la rainure périphérique (13), dans la zone de l'orifice de la douille (11),
    un élément de transmission (2) étant prévu pour accueillir le projectile d'une cartouche (7), cet élément présentant un épaulement cylindrique (4) qui avance dans le perçage (5) d'une cavité (6), et
    l'une des faces externes de la bague élastique (14) étant tournée vers la face externe de l'épaulement cylindrique (4),
    caractérisé en ce que
    la bague élastique (14) est placée dans le perçage (5), un jeu radial existant à l'intérieur de la bague, et
    l'autre face externe de la bague élastique (14) est collée, à l'aide d'une rondelle d'étanchéité (15), contre deux barres (16), introduites dans la cavité (6) perpendiculairement à l'axe longitudinal (17) de la cartouche (7),
    la cavité (6) pouvant être poussée avec les barres (16) contre l'élément de transmission (2), afin de faire s'emboíter le culot (10), et la bague élastique (14) pouvant alors être serrée en direction axiale à l'aide de la rondelle d'étanchéité (15).
  2. Dispositif suivant la revendication 1,
    caractérisé en ce que
    la bague élastique (14) est composée de vulcolane du type adiprène.
  3. Dispositif suivant la revendication 1,
    caractérisé en ce que
    la rondelle d'étanchéité (15) est en acier à ressorts et que le bord (19), tourné vers la bague élastique (14), du diamètre intérieur de la rondelle d'étanchéité (15) est arrondi.
  4. Dispositif suivant la revendication 3,
    caractérisé en ce que
    la rondelle d'étanchéité (15) est en acier trempé à ressorts de 0,3 mm d'épaisseur.
  5. Dispositif suivant la revendication 1,
    caractérisé en ce que
    l'élément de transmission (2) et la cavité (6) sont placés dans un boítier de réception (1) qui est déplacé, lors de l'emboítement, en même temps que la cavité (6) et les barres (16) contre l'élément de transmission (2) demeurant fixe.
  6. Dispositif suivant la revendication 1,
    caractérisé en ce que
    la cartouche (7) est maintenue sur un socle (23) pouvant bouger dans l'axe longitudinal (17) de la cartouche (7), au moyen d'un insert à ressorts (24) et d'un support (25).
  7. Utilisation du dispositif suivant la revendication 1,
    caractérisé en ce que
    le projectile est un projectile sous-calibré et comprend un sabot (12), au moins une rainure périphérique (13) étant prévue sur ce sabot (12) et le culot (10) pouvant être raccordé au sabot (12) du projectile, par emboítement, dans la zone de la rainure périphérique (13).
EP96102062A 1995-07-19 1996-02-13 Dispositif pour fixation d'une douille à un projectile Expired - Lifetime EP0754929B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2123/95 1995-07-19
CH212395 1995-07-19
CH02123/95A CH691556A5 (de) 1995-07-19 1995-07-19 Vorrichtung zur Befestigung einer Patronenhülse an einem Geschoss.

Publications (2)

Publication Number Publication Date
EP0754929A1 EP0754929A1 (fr) 1997-01-22
EP0754929B1 true EP0754929B1 (fr) 2001-03-07

Family

ID=4226426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102062A Expired - Lifetime EP0754929B1 (fr) 1995-07-19 1996-02-13 Dispositif pour fixation d'une douille à un projectile

Country Status (8)

Country Link
US (1) US5763809A (fr)
EP (1) EP0754929B1 (fr)
JP (1) JPH0933196A (fr)
CA (1) CA2176548A1 (fr)
CH (1) CH691556A5 (fr)
DE (1) DE59606536D1 (fr)
NO (1) NO960665L (fr)
SG (1) SG55216A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105758266B (zh) * 2016-02-21 2017-07-28 刘家儒 弹药收口装置
CN105910509B (zh) * 2016-04-19 2017-12-12 谢俊磊 一种定装式炮弹结合机
CN113048850B (zh) * 2021-03-30 2023-04-11 中国兵器装备集团自动化研究所有限公司 一种回转体口部压紧装置及***
CN113551567B (zh) * 2021-07-20 2023-05-02 黑龙江北方工具有限公司 一种铜塑性变径镶嵌装置及方法
CN114777578B (zh) * 2022-04-20 2023-06-20 中国兵器装备集团自动化研究所有限公司 一种小口径炮弹一体式结弹装置及方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE132407C (fr) *
DE596563C (de) * 1933-04-12 1934-05-05 Polte Fa Vorrichtung zum Einsetzen von Geschossen mit Fuehrungsringen und zum Wuergen bzw. Einziehen der Patronenhuelse in die Geschossrille
FR863809A (fr) * 1939-10-07 1941-04-10 Machine à encartoucher, sertir et axer les projectiles
US2382401A (en) * 1942-09-17 1945-08-14 James B Dennis Crimping tool
US2423862A (en) * 1944-12-30 1947-07-15 Casimer E Vorobik Binding and covering apparatus
US2571272A (en) * 1948-07-31 1951-10-16 George J Martin Neck resizer and bullet seater
US2956471A (en) * 1958-05-23 1960-10-18 Richard J Mcmanus Rubber crimping device
CH489288A (de) * 1968-07-18 1970-04-30 Rheinmetall Gmbh Verfahren und Vorrichtung zum Verformen rohrförmiger Hohlkörper, insbesondere Patronenhülsen
FR2202585A5 (fr) * 1972-10-10 1974-05-03 France Etat
US4291609A (en) * 1977-04-07 1981-09-29 Antero Iivarinen Apparatus for assembling a projectile and a booster charge case to a shot
DE3044291A1 (de) * 1980-11-25 1982-06-24 Uni-Cardan Ag, 5200 Siegburg "verfahren und vorrichtung zum dauerhaften verbinden von umlaufenden teilen, wie wellenteile o.dgl.
EP0624774B1 (fr) * 1993-05-13 1998-06-10 Oerlikon Contraves Pyrotec AG Sabot pour projectile à stabilisation par ailettes

Also Published As

Publication number Publication date
NO960665D0 (no) 1996-02-20
EP0754929A1 (fr) 1997-01-22
SG55216A1 (en) 1998-12-21
NO960665L (no) 1997-01-20
US5763809A (en) 1998-06-09
DE59606536D1 (de) 2001-04-12
JPH0933196A (ja) 1997-02-07
CA2176548A1 (fr) 1997-01-18
CH691556A5 (de) 2001-08-15

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