EP0152725A2 - Dispositif anti-déformation pour obus d'artillerie - Google Patents

Dispositif anti-déformation pour obus d'artillerie Download PDF

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Publication number
EP0152725A2
EP0152725A2 EP84830328A EP84830328A EP0152725A2 EP 0152725 A2 EP0152725 A2 EP 0152725A2 EP 84830328 A EP84830328 A EP 84830328A EP 84830328 A EP84830328 A EP 84830328A EP 0152725 A2 EP0152725 A2 EP 0152725A2
Authority
EP
European Patent Office
Prior art keywords
tubular shell
projectile
metal structure
reinforcement device
useful load
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
EP84830328A
Other languages
German (de)
English (en)
Other versions
EP0152725B1 (fr
EP0152725A3 (en
Inventor
Rodolfo Andreetta
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.)
Simmel Difesa SpA
Original Assignee
Simmel Difesa SpA
Simmel SpA
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 Simmel Difesa SpA, Simmel SpA filed Critical Simmel Difesa SpA
Priority to AT84830328T priority Critical patent/ATE55007T1/de
Publication of EP0152725A2 publication Critical patent/EP0152725A2/fr
Publication of EP0152725A3 publication Critical patent/EP0152725A3/en
Application granted granted Critical
Publication of EP0152725B1 publication Critical patent/EP0152725B1/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
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
    • F42B12/62—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile

Definitions

  • the present invention relates to an anti-strain device for the tubular shell of artillery projectiles intended to eject a useful load.
  • Said base plug must be separable from the projecti le when its purpose is to carry on a predetermined target a useful load, for example an illuminating or smoke producing canister, or a set of small bombs; this useful load being ejected from the projectile at the time of splitting up and caused to fall to ground.
  • a useful load for example an illuminating or smoke producing canister, or a set of small bombs
  • the reinforcement device according to the invention for the portion of the tubular shell between the driving band and the base plug is characterized in that it consists of a metal structure having a cylindrical side surface with an outer diameter substantially equal to the inner diameter of the portion of the tubular shell to be reinforced.
  • metal reinforcing structure according to the invention can have several embodiments, depending particularly on the kind of useful load contained in the tubular shell of the projectile.
  • the strains of the tubular shell are li mited to allowable values, so as to avoid the inconveniences of the prior art.
  • Fig. 1 it can be seen that between the driving band 1 of an artillery projectile intended to carry a sub-ammunition load 2, and its base plug 3 there is arranged in contact with the inner wall of the tubular shell 4 a metal reinforcement structure 5 for said tubular shell 4. Said reinforcement structure 5 is better seen in Fig. 2 and 3, where it is shown alone. It should be noted that in Fig. 1 the reinforcement structure 5 is sectioned along a line 1 - 1 indicated in Fig. 2.
  • the first embodiment shown of the reinforcement structure according to the present invention is particularly suited to the case in which the useful load consists of sub-ammunition 2, in which case a lightweight but particularly strong reinforcement structure 5 is provided which in addition does not take precious space from the useful load.
  • Fig. 2 shows a locating key 6 which can be engaged in a corresponding seat provided on the inner wall of the tubular shell of the projectile to prevent angular displacements of the structure 5 with respect to the projectile during its firing.
  • said key 6 is fixed to the structure 5 by means of two screws 7.
  • the reinforcement structure of said first embodiment has a central circular hole and six holes regularly arranged radially around the central hole, all holes having the same diameter.
  • the diameter of the holes as well as their number and arrangement depend on the dimensions of the sub-ammunition 2 which represents the useful load of the projectile.
  • FIG. 4 A second embodiment of the invention is shown in Fig. 4, in which the metal reinforcement structure consists of a ring formed by a stub pipe 5' within which for example the parachute 2' of an illuminating canister is arranged.
  • the reinforcement structure has been designed so as to leave free the whole space inside the ring 5,0.
  • the thickness of the ring 5' should be determined in dependance on the type of material, its construction and the stresses which it shall have to withstand without excessive strain of the tubular shell 4.
  • Fig. 5 shows a third embodiment of the metal reinforcement structure according to the invention.
  • the metal reinfocement structure 5" is shaped like an annular box and it also acts as a container, for example for a pyrotechnical mixture.
  • the wall thickness of the box 5" is to be designed in dependance on loads and allowable strains.
  • the outer diameter of the reinforcement structure can be made slightly smaller than the inner diameter of the tubular shell of the projectile. The clearance so obtained will facilitate an introduction of the reinforcement structure into the tubular shell 4, but it should nevertheless be such as not to allow an eccessive strain of the tubular shell 4 during firing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Sheet Holders (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Powder Metallurgy (AREA)
  • Gyroscopes (AREA)
  • Tubes (AREA)
  • Details Of Indoor Wiring (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)
  • Steroid Compounds (AREA)
  • Endoscopes (AREA)
  • Pinball Game Machines (AREA)
  • Vibration Dampers (AREA)
EP84830328A 1984-01-20 1984-12-04 Dispositif anti-déformation pour obus d'artillerie Expired - Lifetime EP0152725B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84830328T ATE55007T1 (de) 1984-01-20 1984-12-04 Einrichtung zur verhinderung der verformung von artilleriegeschossen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1925084 1984-01-20
IT19250/84A IT1173087B (it) 1984-01-20 1984-01-20 Dispositivo antideformazione per proiettili d'artiglieria

Publications (3)

Publication Number Publication Date
EP0152725A2 true EP0152725A2 (fr) 1985-08-28
EP0152725A3 EP0152725A3 (en) 1988-03-16
EP0152725B1 EP0152725B1 (fr) 1990-07-25

Family

ID=11156120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84830328A Expired - Lifetime EP0152725B1 (fr) 1984-01-20 1984-12-04 Dispositif anti-déformation pour obus d'artillerie

Country Status (5)

Country Link
EP (1) EP0152725B1 (fr)
AT (1) ATE55007T1 (fr)
DE (1) DE3482835D1 (fr)
ES (1) ES292711Y (fr)
IT (1) IT1173087B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3116894A1 (fr) * 2020-12-02 2022-06-03 Nexter Munitions Projectile gyrostabilisé

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US412068A (en) * 1889-10-01 Car-coupling
GB149114A (en) * 1919-06-19 1920-08-12 Roy Andrew Darling Improvements in and relating to illuminating or signal projectiles
DE2100482A1 (de) * 1970-01-08 1971-07-15 Aktiebolaget Bofors, Bofors (Schwe den) Anordnung an einem Geschoß oder dergleichen
DE2100276A1 (de) * 1970-01-08 1971-07-15 Aktiebolaget Bofors, Bofors (Schwe den) Anordnung an einem Geschoß od dgl
USB412068I5 (fr) * 1972-02-28 1976-01-13
US3954060A (en) * 1967-08-24 1976-05-04 The United States Of America As Represented By The Secretary Of The Army Projectile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US412068A (en) * 1889-10-01 Car-coupling
GB149114A (en) * 1919-06-19 1920-08-12 Roy Andrew Darling Improvements in and relating to illuminating or signal projectiles
US3954060A (en) * 1967-08-24 1976-05-04 The United States Of America As Represented By The Secretary Of The Army Projectile
DE2100482A1 (de) * 1970-01-08 1971-07-15 Aktiebolaget Bofors, Bofors (Schwe den) Anordnung an einem Geschoß oder dergleichen
DE2100276A1 (de) * 1970-01-08 1971-07-15 Aktiebolaget Bofors, Bofors (Schwe den) Anordnung an einem Geschoß od dgl
USB412068I5 (fr) * 1972-02-28 1976-01-13

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3116894A1 (fr) * 2020-12-02 2022-06-03 Nexter Munitions Projectile gyrostabilisé
EP4008992A1 (fr) * 2020-12-02 2022-06-08 Nexter Munitions Projectile gyrostabilisé
US11650035B2 (en) 2020-12-02 2023-05-16 Nexter Munitions Gyrostabilized projectile

Also Published As

Publication number Publication date
IT8419250A1 (it) 1985-07-20
ES292711U (es) 1986-06-16
ES292711Y (es) 1987-03-01
IT8419250A0 (it) 1984-01-20
DE3482835D1 (de) 1990-08-30
ATE55007T1 (de) 1990-08-15
IT1173087B (it) 1987-06-18
EP0152725B1 (fr) 1990-07-25
EP0152725A3 (en) 1988-03-16

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