EP0703428A1 - Sabot jetable pour projectiles sous-calibrés - Google Patents

Sabot jetable pour projectiles sous-calibrés Download PDF

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Publication number
EP0703428A1
EP0703428A1 EP95111479A EP95111479A EP0703428A1 EP 0703428 A1 EP0703428 A1 EP 0703428A1 EP 95111479 A EP95111479 A EP 95111479A EP 95111479 A EP95111479 A EP 95111479A EP 0703428 A1 EP0703428 A1 EP 0703428A1
Authority
EP
European Patent Office
Prior art keywords
sabot
guide band
projectile
longitudinal groove
sub
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
EP95111479A
Other languages
German (de)
English (en)
Other versions
EP0703428B1 (fr
Inventor
Helmut Ortmann
Wilfried Engelmann
Walter Simon
Gerhard Vogel
Dieter Jungbluth
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.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall Industrie 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 Rheinmetall Industrie AG filed Critical Rheinmetall Industrie AG
Publication of EP0703428A1 publication Critical patent/EP0703428A1/fr
Application granted granted Critical
Publication of EP0703428B1 publication Critical patent/EP0703428B1/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
    • F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
    • F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile
    • 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
    • F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor

Definitions

  • the invention relates to a removable cage for a sub-caliber projectile according to the preamble of claim 1.
  • Driver cages for large-caliber KE and KE practice projectiles that are fired from smooth-tube guns are predominantly provided with a guide band made of plastic, in particular polyamide, which has predetermined breaking points in the area of the joints of the sabot segments. During the opening phase of the sabot, a separation of the guide belt through these predetermined breaking points should then be initiated.
  • the object of the present invention is to further develop a sabot of the type mentioned at the outset in such a way that reproducible detachment of the sabot segments can be achieved in a simple manner, regardless of the moisture content of the respective guide belt.
  • the invention is based on the idea of subsequently providing guide belts of a known type with a slot-shaped longitudinal groove in the region of the joints of the sabot segments.
  • This longitudinal groove preferably extends over at least (30%) of the width of the guide belt and has a course that is chosen such that there is no circumferential crack formation in the guide belt area during the opening process of the respective sabot.
  • a predeterminable area with guide band material should remain in order not to impair the eyelid function of the guide band at this point when firing.
  • Fig. 1 denotes a sub-caliber projectile which essentially consists of a wing-stabilized penetrator 2 and a two-flange drive cage 3.
  • the sabot 3 is composed of three segments 4-6 (FIG. 2), which together form the parting lines 7-9 and which are held together in the region of the rear flange (pressure flange) 10 with the aid of a guide belt 11.
  • longitudinal grooves 12-14 are provided in the guide band 11 along the parting lines 7-9, which cause the guide band 11 to tear out along these grooves as soon as the projectile 1 leaves the respective weapon barrel.
  • the longitudinal groove 12 runs parallel to the longitudinal axis 15 of the floor (FIG. 1) and has a length 16 which covers almost the entire width 17 of the guide band 11 .
  • the course of the longitudinal groove 16 facing the penetrator is selected such that the guide band 11 is weakened in the region of the parting line 7, but tearing of the guide band in the circumferential direction is reliably avoided.
  • the longitudinal section 12 producing the longitudinal section is guided through the guide band 11 so that webs in the substructure, which are required for the tight fit of the guide band 11, are included in the sectional profile of the longitudinal groove 12 in such a way that sharp Changes in cross-section of the guide band profile, at which the crack to be avoided can be deflected in the circumferential direction, are compensated for.
  • An axial crack progression is thus achieved reliably and reproducibly.
  • the cutting width should not exceed 0.6 mm, so that it is ensured that it is completely closed when it is pressed into the transition cone of the gun barrel (not shown) by displaced guide band material, so that the sealing function of the guide band 12 is in no way impaired.
  • the length and depth of the longitudinal grooves 12 produced by cuts are to be adapted to the respective guide belt geometry. Sharp changes in cross-section must be compensated for by the cut. On the other hand, sufficient cross-sectional area must be maintained to ensure the holding function of the guide belt.
  • the longitudinal groove 12 'and 12' ' is also formed such that radial tearing in the circumferential direction of the guide band 11 is reliably avoided, but in which the length of the longitudinal groove is somewhat is less than in the embodiment shown in FIG. 3.
  • the length 16 should, however, be at least 30% of the length of the width 17 of the respective guide belt 11.
  • the longitudinal groove should not begin directly at the rear end of the guide band 18 (FIG. 3), but only after a distance 19, which must be determined experimentally for the respective projectile type.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chain Conveyers (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Materials For Medical Uses (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Emergency Lowering Means (AREA)
  • Toys (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
EP95111479A 1994-09-21 1995-07-21 Sabot jetable pour projectiles sous-calibrés Expired - Lifetime EP0703428B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433628 1994-09-21
DE4433628A DE4433628A1 (de) 1994-09-21 1994-09-21 Abwerfbarer Treibkäfig für ein unterkalibriges Geschoß

Publications (2)

Publication Number Publication Date
EP0703428A1 true EP0703428A1 (fr) 1996-03-27
EP0703428B1 EP0703428B1 (fr) 1997-09-17

Family

ID=6528771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111479A Expired - Lifetime EP0703428B1 (fr) 1994-09-21 1995-07-21 Sabot jetable pour projectiles sous-calibrés

Country Status (6)

Country Link
EP (1) EP0703428B1 (fr)
JP (1) JP3677092B2 (fr)
KR (1) KR100260059B1 (fr)
AT (1) ATE158403T1 (fr)
DE (2) DE4433628A1 (fr)
ES (1) ES2108523T3 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040359A (en) * 1976-05-14 1977-08-09 The United States Of America As Represented By The Secretary Of The Army Discarding frangible rotating band
FR2365098A1 (fr) * 1976-09-20 1978-04-14 Rheinmetall Gmbh Projectile annulaire stabilise par giration
EP0027552A1 (fr) * 1979-10-17 1981-04-29 Rheinmetall GmbH Procédé pour la fabrication de ceintures d'étanchéité pouvant tourner par rapport au projectile et projectiles équipés d'une telle ceinture
EP0048803A1 (fr) * 1980-09-03 1982-04-07 Rheinmetall GmbH Sabot pour projectile à calibre réduit et son procédé de fabrication
USH265H (en) * 1986-11-14 1987-05-05 The United States Of America As Represented By The Secretary Of The Army Penetrator ammunition with propulsion gas seal
EP0389845A1 (fr) * 1989-03-25 1990-10-03 DIEHL GMBH & CO. Sabot pour projectiles sous-calibrés stabilisés en roulis
DE4009220A1 (de) 1990-03-22 1991-09-26 Rheinmetall Gmbh Abwerfbarer treibkaefig
EP0580511A1 (fr) * 1992-07-24 1994-01-26 GIAT Industries Ceinture d'étanchéité de projectile flèche

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040359A (en) * 1976-05-14 1977-08-09 The United States Of America As Represented By The Secretary Of The Army Discarding frangible rotating band
FR2365098A1 (fr) * 1976-09-20 1978-04-14 Rheinmetall Gmbh Projectile annulaire stabilise par giration
EP0027552A1 (fr) * 1979-10-17 1981-04-29 Rheinmetall GmbH Procédé pour la fabrication de ceintures d'étanchéité pouvant tourner par rapport au projectile et projectiles équipés d'une telle ceinture
EP0048803A1 (fr) * 1980-09-03 1982-04-07 Rheinmetall GmbH Sabot pour projectile à calibre réduit et son procédé de fabrication
USH265H (en) * 1986-11-14 1987-05-05 The United States Of America As Represented By The Secretary Of The Army Penetrator ammunition with propulsion gas seal
EP0389845A1 (fr) * 1989-03-25 1990-10-03 DIEHL GMBH & CO. Sabot pour projectiles sous-calibrés stabilisés en roulis
DE4009220A1 (de) 1990-03-22 1991-09-26 Rheinmetall Gmbh Abwerfbarer treibkaefig
EP0580511A1 (fr) * 1992-07-24 1994-01-26 GIAT Industries Ceinture d'étanchéité de projectile flèche

Also Published As

Publication number Publication date
DE4433628A1 (de) 1996-03-28
ES2108523T3 (es) 1997-12-16
DE59500675D1 (de) 1997-10-23
EP0703428B1 (fr) 1997-09-17
JP3677092B2 (ja) 2005-07-27
JPH08110198A (ja) 1996-04-30
KR100260059B1 (ko) 2000-08-01
KR960011381A (ko) 1996-04-20
ATE158403T1 (de) 1997-10-15

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