EP0853229B1 - Driving band for projectile - Google Patents

Driving band for 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)
French (fr)
Other versions
EP0853229A1 (en
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/en
Application granted granted Critical
Publication of EP0853229B1 publication Critical patent/EP0853229B1/en
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)

Description

Die Erfindung betrifft einen Führungsring für ein Geschoss nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a guide ring for a projectile according to the preamble of patent claim 1 .

Der Zweck solcher Führungsringe besteht darin, das Geschoss beim Abschuss im Waffenrohr zu führen und in Rotation um die Längsachse (Drall) zu versetzen. Derartige, meist aus metallischen Werkstoffen bestehende Führungsringe sind beispielsweise aus der DE-OS 37 36 167 oder der DE-OS 35 08 053 bekannt. Solche Führungsringe sind mit dem Nachteil behaftet, dass der Verschleiss des Waffenrohres relativ hoch sein kann. Der vorzeitige Verschleiss des Waffenrohres kann jedoch vermindert werden, wenn als Material für die Führungsringe ein geeigneter Kunststoff verwendet wird. Die Herstellung, Montage und Befestigung solcher Führungsringe ist jedoch relativ umständlich und teuer. Mit der DE-OS 35 25 854 ist ein ähnlicher Führungsring bekannt geworden, der aus zwei Halbringen gebildet ist, die durch Schnappverschluss fest miteinander verbindbar sind. Dieser Führungsring ist jedoch nicht fest mit der Geschosshülle verbunden, sondern durchrutschend auf dieser angeordnet, so dass dem Geschoss beim Abschuss nur ein Restdrall erteilt werden kann. The purpose of such guide rings is to guide the projectile in the weapon barrel when it is fired and to set it in rotation about the longitudinal axis (swirl). 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. With 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.

Aus der DE-A-36 17 415 ist ein Führungsring der eingangs genannten Art bekannt. Dieser Führungsring ist Teil eines integralen, als Zwischenhülse ausgebildeten Körpers, der sich mit variierendem Innen- und Aussendurchmesser vom Dichtungskörper bis zur Mitte der Geschossspitze erstreckt. Die Konstruktion ist, unter anderem infolge des separaten Dichtungskörpers, verhältnismässig aufwendig.From DE-A-36 17 415 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.

Der Erfindung liegt die Aufgabe zugrunde einen Führungsring der eingangs genannten Art vorzuschlagen, der vorstehend erwähnte Nachteile nicht aufweist.The invention has for its object a guide ring of the type mentioned to propose that does not have the disadvantages mentioned above.

Diese Aufgabe wird durch Merkmale des kennzeichnenden Teils des Patentanspruchs 1 gelöst. Hierbei ist der Führungsring nicht nur durch Öffnungen in der Geschosshülle fest mit einem an der Rückseite des Geschosses im Innern der Geschosshülle angeordneten, vom Führungsring separaten Dichtungskörper verbunden, sondern der Führungsring und der Dichtungskörper sind ein integrales Element und werden zusammen mit dem Dichtungskörper während eines Schrittes eines Fabrikationsverfahrens durch Einspritzen eines Kunststoffes in die Geschosshülle durch deren offene Rückseite gebildet. This object is achieved by features of the characterizing part of patent claim 1 . Here, 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.

Die mit der Erfindung erzielten Vorteile sind darin zu sehen, dass der Führungsring auf einfache Art und Weise hergestellt und fest und sicher mit der Geschosshülle verbunden wird, wobei nur geringe Herstellungskosten entstehen.The advantages achieved with the invention can be seen in the fact that the guide ring is simple Manufactured and firmly and securely connected to the projectile shell, with only low manufacturing costs.

Im folgenden wird die Erfindung anhand eines Ausführungsbeispieles im Zusammenhang mit der Zeichnung näher erläutert. Es zeigen:

Fig.1
einen Längsschnitt durch einen Teil eines Geschosses,
Fig.2
einen Längsschnitt einer Geschosshülle des Geschosses gemäss Fig.1, und
Fig.3
einen Querschnitt entlang der Linie III-III in der Fig.2 in grösserem Massstab, durch einen Teil der Geschosshülle.
The invention is explained in more detail below using an exemplary embodiment in conjunction with the drawing. Show it:
Fig.1
a longitudinal section through part of a floor,
Fig.2
a longitudinal section of a projectile shell of the projectile according to Fig.1 , and
Figure 3
a cross section along the line III-III in Figure 2 on a larger scale, through part of the shell.

In den Fig.1 bis 3 ist mit 1 ein Mantel bezeichnet, der aus einer Geschosshülle 2 und einer mit dieser fest verbundenen Geschossspitze 3 gebildet ist. Die Geschossspitze 3, die vorzugsweise aus einem hochwarmfesten, faserverstärkten thermoplastischen Kunststoff besteht, wird in einem ersten Schritt eines Fabrikationsverfahrens auf die Geschosshülle 3 gespritzt, wobei sie in Rillen 4, die im Innern der Geschosshülle 2 angeordnet sind verankert wird. Die Geschossspitze 3 weist eine nicht näher dargestellte und beschriebene Zentrierung 6 auf, in welcher ein Geschosskörper 5 geführt und gehalten wird. Der Geschosskörper 5 wird in einem zweiten Schritt des Fabrikationsverfahrens durch die an der Rückseite offene Geschosshülle 2 in die Zentrierung 6 der Geschossspitze 3 geschoben. Mit 7 ist ein Führungsring bezeichnet, der in einer Umfangsnut 8 der Geschosshülle 2 eingebettet ist. Der Führungsring 7 ist durch Öffnungen 9 in der Geschosshülle 2 fest mit einem an der Rückseite des Geschosses im Innern der Geschosshülle 2 angeordnetem Dichtungskörper 10 verbunden. Die Öffnungen 9 können beispielsweise sechs um einen Winkel von 60° versetzte Bohrungen sein, die im Bereich der Umfangsnut 8 radial verlaufend angeordnet sind. Es sind jedoch auch Öffnungen anderer Form und Anzahl möglich. 1 to 3 , 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. 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 . However, openings of a different shape and number are also possible.

Der Führungsring 7 wird in einem dritten Schritt des Fabrikationsverfahrens zusammen mit dem Dichtungskörper 10 durch Einspritzen des gleichen, wie für die Herstellung der Geschossspitze 3 verwendeten Kunststoffes in die Geschosshülle 2 durch deren offene Rückseite gebildet. Das Spritzmaterial dringt hierbei aus der Geschosshülle 2 durch die Öffnungen 9 in die Umfangsnut 8 und in im Innern der Geschosshülle 2 angeordnete Umfangsrillen 11, 12. Ausserdem umschliesst das Spritzmaterial den aus der Zentrierung 6 herausragenden Teil des Geschosskörpers 5, so dass dieser fest im Geschoss verankert ist. In der Umfangsnut 8 ist eine Verzahnung 13 vorgesehen, die mit dem Führungsring 7 im Eingriff ist und so zur Übertragung des Dralls auf das Geschoss beiträgt. 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 . In addition, 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. In the circumferential groove 8 , 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.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Mantelcoat
22
Geschosshülleprojectile casing
33
Geschossspitzebullet tip
44
Rillengrooves
55
Geschosskörperprojectile body
66
Zentrierungcentering
77
Führungsringguide ring
88th
Umfangsnutcircumferential groove
99
Öffnungenopenings
1010
Dichtungskörperseal body
1111
Umfangsrillencircumferential grooves
1212
Umfangsrillencircumferential grooves
1313
Verzahnunggearing

Claims (5)

  1. Driving band for a projectile, wherein the driving band (7)
    is arranged in a circumferential slot (8) of a projectile casing (2) and
    is fixedly joined via openings (9) in the casing (2) to a sealing body (10) arranged in the interior (2) of the casing at the rear end of the projectile,
    characterized in that
    the driving band (7) is formed together with the sealing body (10) in a step in the fabrication process by injecting plastic material into the casing (2) through its open rear end.
  2. Driving band according to Claim 1,
    characterized in that
    the openings (9) are holes extending radially in the region of the circumferential slot.
  3. Driving band according to Claim 2,
    characterized in that
    six openings (9) pitched at 60° are provided.
  4. Driving band according to Claim 1,
    characterized in that
    serrations (13) meshing with the driving band (7) are provided in the circumferential slot (8).
  5. Driving band according to Claim 1,
    characterized in that
    the driving band (7) consists of a high temperature-resistant, fibre-reinforced thermoplastic material.
EP97112895A 1997-01-13 1997-07-26 Driving band for projectile Expired - Lifetime EP0853229B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH00058/97A CH696601A5 (en) 1997-01-13 1997-01-13 Projectile and sabot for a projectile.
CH58/97 1997-01-13
CH5897 1997-01-13

Publications (2)

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

Family

ID=4178362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112895A Expired - Lifetime EP0853229B1 (en) 1997-01-13 1997-07-26 Driving band for projectile

Country Status (12)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59706552D1 (en) * 1997-01-14 2002-04-11 Contraves Pyrotec Ag Projectile and method for its manufacture
SE520050C2 (en) * 2000-03-30 2003-05-13 Bertil Johansson Composite projectile and cartridge containing such projectile
CA2369708C (en) * 2001-03-14 2006-03-21 Oerlikon Contraves Pyrotec Ag Projectile and method for producing it
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 (en) * 2008-06-23 2009-12-24 Rheinmetall Waffe Munition Gmbh Sabertop missile and process for its manufacture
SE536320C2 (en) 2011-04-14 2013-08-20 Bae Systems Bofors Ab Quarterly sliding belt for a projectile
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 (en) * 1977-12-29 1979-07-05 Diehl Gmbh & Co Fibre-reinforced rotating tape for missiles - composed of high-tensile aromatic polyamide fibres embedded in matrix of polycarbonate polybutene or polyamide (NL 3.7.79)
DE3142636C2 (en) * 1981-10-28 1984-06-14 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Projectile body with a plastic guide band and method for its manufacture
DE3334022A1 (en) * 1983-09-21 1985-04-04 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf BULLET BODY WITH PLASTIC GUIDE BAND
DE3508053A1 (en) * 1985-03-07 1986-09-18 Rheinmetall GmbH, 4000 Düsseldorf BULLET STOCK
DE3525854A1 (en) * 1985-07-19 1989-01-05 Mauser Werke Oberndorf WING-STABILIZED ARROW BULLET
DE3617415C2 (en) * 1986-05-23 1995-09-07 Mauser Werke Oberndorf Sub-caliber sabot bullet
DE3736167A1 (en) * 1987-10-26 1989-05-03 Bongers Hermann Arrow projectile having a conical discarding sabot, the conical discarding sabot separation being actuated by centrifugal force

Also Published As

Publication number Publication date
PL323426A1 (en) 1998-07-20
CH696601A5 (en) 2007-08-15
NO973834D0 (en) 1997-08-20
DE59706011D1 (en) 2002-02-21
CZ285158B6 (en) 1999-05-12
US5909003A (en) 1999-06-01
ZA979140B (en) 1998-05-11
NO973834L (en) 1998-07-14
KR19980070003A (en) 1998-10-26
NO306883B1 (en) 2000-01-03
CZ282097A3 (en) 1999-02-17
CA2215252A1 (en) 1998-07-13
JPH10206098A (en) 1998-08-07
SG71044A1 (en) 2000-03-21
EP0853229A1 (en) 1998-07-15

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