EP0312491A1 - Enveloppe à fragmentation pour engin explosif métallique et son procédé de fabrication - Google Patents

Enveloppe à fragmentation pour engin explosif métallique et son procédé de fabrication Download PDF

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Publication number
EP0312491A1
EP0312491A1 EP88810612A EP88810612A EP0312491A1 EP 0312491 A1 EP0312491 A1 EP 0312491A1 EP 88810612 A EP88810612 A EP 88810612A EP 88810612 A EP88810612 A EP 88810612A EP 0312491 A1 EP0312491 A1 EP 0312491A1
Authority
EP
European Patent Office
Prior art keywords
hollow body
separating cut
jacket according
separating
splinter jacket
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.)
Pending
Application number
EP88810612A
Other languages
German (de)
English (en)
Inventor
Karl Merz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0312491A1 publication Critical patent/EP0312491A1/fr
Pending 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
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • 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
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/22—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction
    • F42B12/26—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction the projectile wall being formed by a spirally-wound element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H3/00—Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments

Definitions

  • the invention relates to a fragment jacket for an explosive body, in particular for a projectile, a grenade or a mine, with a one-piece hollow body provided with predetermined breaking points.
  • the invention further relates to a method for producing such a splinter jacket.
  • the splinter jacket is usually provided with predetermined breaking points.
  • predetermined breaking points designed as grooves in the splinter jacket, the possible total mass of the splinter jacket (in relation to its size) is somewhat lost.
  • a splinter jacket which consists of rings with a rectangular cross-section arranged on a support body and lying snugly against one another.
  • DE-U1-84 27 781.5 shows a warhead with cracks arranged in the warhead housing, which have arisen from grooves milled into the wall of the warhead housing by upsetting the warhead housing.
  • the invention has for its object to provide a splinter jacket of the type described above, which can be produced much more efficiently with considerably less work.
  • the solution idea is to slit the hollow body at least in one batch through at least one separating cut forming a separating gap, the separating cut being made in such a way that the hollow body remains as an integral structure.
  • the separating cut surfaces adjacent to one another in the separating gap are brought into contact with one another and fixed to one another in contact.
  • FIG. 1 The hollow cylinder 1 shown therein has constant wall thickness.
  • the separating cut 5 is carried out by a metal cutting device, for example by a laser or plasma cutting device.
  • the separating cut 5 can also be carried out in another way, for example by means of a mechanical cutting device.
  • the gap formed between the turns is shown greatly enlarged in FIG. 1 by pulling the turns 6 apart. In reality, the gap width when making the separating cut using a laser cutting device is only approximately 0.15-0.3 mm.
  • a small hole 7 with an at least approximately round cross section can be provided there.
  • the hollow cylinder 1 In the collapsed state, the hollow cylinder 1 is under a certain elastic tension. So that it remains in this state, it must be fixed in this state. This can be done in a simple manner by welding adjacent cutting edges of the separating cut 5, as is shown in FIG. 3. In FIG. 3, a weld seam made on the outer circumference and running continuously along the separating cut is designated by 8.
  • the hollow cylinder cut open by the separating cut becomes an inherently stable body which is directly suitable for receiving an explosive charge without additional reinforcing elements.
  • FIG. 5 Another possibility of fixing the hollow cylinder in the collapsed state is to use a support sleeve.
  • a support sleeve In Fig. 5 an inner support sleeve 10 is shown.
  • the hollow cylinder 1 is on the support sleeve on the one hand by an outwardly projecting shoulder 11 of the support sleeve 10 in the right part of FIG. 5 and on the other hand by a web on the support sleeve 10 in the left part of FIG. 5 which engages in an internal groove 12 in the hollow cylinder fixed.
  • the support sleeve 10 preferably consists of a relatively easily deformable material, such as aluminum, and is pressed into the hollow cylinder under pressure (the material flowing into the groove in the hollow cylinder).
  • the support sleeve can also be designed as an outer sleeve (not shown).
  • the stability of the hollow cylinder 1 is substantially increased by the support sleeve 10.
  • the support sleeve 10 requires a certain volume by which an explosive device to be inserted into the hollow cylinder 1 must be made smaller.
  • the welding solution itself is therefore preferable.
  • FIG. 6 shows in section a hollow body 1, only half shown, according to FIG. 2, in which, however, the separating cut 5 is for the most part oriented obliquely to its surface. This can be used, for example, for spatial distribution the pressure wave arising during the detonation of the explosive device is taken into account.
  • FIG. 7 shows a hollow body, according to FIG. 2, in which, however, the separating cut 5 is partially zigzag-shaped or wavy. Such a configuration of the separating cut 5 achieves a certain toothing of the individual turns 6 which increases the stability of the hollow body.
  • FIG. 9 shows in section a hollow body 1, only half shown, according to FIG. 2, in which, however, the pitch of the windings 6 is not constant, but rather decreases from the center 4 towards the outside (towards the end parts 2, 3).
  • the spatial distribution of the pressure wave which arises during the detonation of the explosive device can also be taken into account in this way.
  • FIG. 10 shows a hollow body 1 according to FIG. 2, in which two helical, mutually non-overlapping separating cuts 5 ', 5 ⁇ are provided. It is also possible to make the separating cuts as single or multi-start screw lines. In addition, the separating cuts can be made with interruptions instead of the welded connections (8 or 9 in Fig. 7 or 8).
  • FIG. 11 shows a splinter jacket which is designed as a predominantly cylindrical sleeve 13 with a base part 14 designed as a fastening element for an ignition head.
  • a hollow body is preferably produced prior to the attachment of the separating cut 5 by hot and / or cold massive forming or in the deep-drawing process, the fastening element for the igniter head also being molded at the same time.
  • the separating cut 5 ends or begins at a distance from the left-hand opening of the bush on the one hand and from its bottom part 14 on the other hand.
  • grooves 15 and 16 tapering at an acute angle are incorporated as predetermined breaking points.
  • the grooves can be formed at the same time using the aforementioned manufacturing techniques. Instead of axially, the grooves can also run helically, for example. In general, they should run substantially perpendicular to the cut or cuts.
  • the design of the hollow body is in no way limited to hollow cylinders.
  • the invention can also be used without problems in the case of conical, frustoconical, spherical, egg-shaped, plate-shaped or grenade-shaped hollow bodies, an embodiment both with or without a support sleeve being possible.
  • the hollow bodies do not necessarily have to be rotationally symmetrical. Hollow bodies that are open, open only at one location or on one side or completely closed can be used at two locations.
  • the hollow body thus created which is provided with a winding section, can also be used as a spring for other purposes, for example with appropriate thermal treatment. All materials can be used which can be cut using a suitable method.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Arc Welding In General (AREA)
  • Laser Beam Processing (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Disintegrating Or Milling (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
EP88810612A 1987-10-14 1988-09-09 Enveloppe à fragmentation pour engin explosif métallique et son procédé de fabrication Pending EP0312491A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH402387 1987-10-14
CH4023/87 1987-10-14

Publications (1)

Publication Number Publication Date
EP0312491A1 true EP0312491A1 (fr) 1989-04-19

Family

ID=4268375

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88907598A Expired - Lifetime EP0344224B1 (fr) 1987-10-14 1988-09-09 Manchon a fractionnement pour corps explosif metallique et procede de fabrication
EP88810612A Pending EP0312491A1 (fr) 1987-10-14 1988-09-09 Enveloppe à fragmentation pour engin explosif métallique et son procédé de fabrication

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP88907598A Expired - Lifetime EP0344224B1 (fr) 1987-10-14 1988-09-09 Manchon a fractionnement pour corps explosif metallique et procede de fabrication

Country Status (20)

Country Link
US (1) US5095821A (fr)
EP (2) EP0344224B1 (fr)
JP (1) JPH02501853A (fr)
KR (1) KR890701980A (fr)
CN (1) CN1032584A (fr)
AR (1) AR241668A1 (fr)
AT (1) ATE76186T1 (fr)
AU (1) AU2318588A (fr)
BR (1) BR8807247A (fr)
CA (1) CA1323800C (fr)
DE (1) DE3871140D1 (fr)
DK (1) DK249289D0 (fr)
ES (1) ES2033018T3 (fr)
FI (1) FI94672C (fr)
GR (1) GR3005383T3 (fr)
IL (1) IL87958A (fr)
NO (1) NO172953C (fr)
PT (1) PT88744B (fr)
WO (1) WO1989003500A1 (fr)
ZA (1) ZA887516B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001079781A1 (fr) 2000-04-19 2001-10-25 Karl Merz Enveloppe en acier pour grenade et son procede de production
FR2826441A1 (fr) * 2001-06-22 2002-12-27 Tdw Ges Fur Verteidigungstechn Obus a fragmentations

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9011559D0 (en) * 1990-05-23 1990-07-11 Jem Smoke Machine Co Improvements in or relating to a pyrotechnic device
SG82583A1 (en) * 1997-04-23 2001-08-21 Diehl Stiftung & Co Fragmentation body for a fragmentation projectile
DE19960180B4 (de) * 1999-12-14 2006-03-09 Rheinmetall W & M Gmbh Verfahren zur Herstellung eines Sprenggeschosses
IL160500A (en) * 2004-02-20 2009-02-11 Rafael Advanced Defense Sys Method of retrofiting a munition for enhancing fragmentation effectiveness
US7093542B2 (en) * 2004-04-22 2006-08-22 Lockheed Martin Corporation Warhead with integral, direct-manufactured features
BG969U1 (bg) * 2006-12-19 2007-12-28 "Арсенал" Ад Осколъчна граната
JP5256078B2 (ja) * 2009-03-03 2013-08-07 株式会社Ｉｈｉエアロスペース 指向性りゅう弾
GB2469099B (en) * 2009-04-01 2013-01-23 Chemring Energetics Uk Ltd Explosive charge
DE102009047757B4 (de) 2009-12-09 2011-09-15 Hoffmann & Co. Elektrokohle Ag Sensorelement für eine Sensorvorrichtung
JP5504902B2 (ja) * 2010-01-14 2014-05-28 日油株式会社 円筒状弾薬用の梱包容器
US9360284B1 (en) 2013-03-15 2016-06-07 Vista Outdoor Operations Llc Manufacturing process to produce metalurgically programmed terminal performance projectiles
AT515209B1 (de) 2014-03-14 2015-07-15 Hirtenberger Defence Systems Gmbh & Co Kg Geschoss
US10018453B1 (en) 2014-04-15 2018-07-10 Lockheed Martin Corporation Lightweight monolithic warhead and a method of manufacture
US9738947B1 (en) 2014-04-18 2017-08-22 The United States Of America As Represented By The Secretary Of The Navy Fragmentation device with increased surface hardness and a method of producing the same
US10578411B2 (en) * 2014-12-18 2020-03-03 Raytheon Company Explosive device with casing having voids therein
RU2627506C1 (ru) * 2016-04-18 2017-08-08 Роман Николаевич Серёгин Корпус боеприпаса
US10113846B2 (en) * 2016-07-07 2018-10-30 General Dynamics Ordnance and Tactical Systems-Canada, Inc. Systems and methods for reducing munition sensitivity
RU174290U1 (ru) * 2017-04-03 2017-10-10 Государственное научное учреждение "Институт порошковой металлургии" Осколочный элемент заданного дробления
US11454480B1 (en) 2019-06-12 2022-09-27 Corvid Technologies LLC Methods for forming munitions casings and casings and munitions formed thereby

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR792362A (fr) * 1935-07-11 1935-12-30 Perfectionnement à la fabrication des ressorts à boudin
US2393275A (en) * 1943-09-04 1946-01-22 Budd Edward G Mfg Co Method of making fragmentation bombs
US2673730A (en) * 1948-10-28 1954-03-30 Hupp Arleigh Glynn Spring for spring clutches
US2798431A (en) * 1951-01-25 1957-07-09 Howard W Semon Fragmentation warhead
US3768414A (en) * 1971-05-21 1973-10-30 Us Navy Controlled fragment warhead
FR2402003A1 (fr) * 1977-08-31 1979-03-30 Bofors Ab Dispositif et procede de traitement d'une tete explosive pour en assurer la fragmentation
US4570318A (en) * 1984-10-12 1986-02-18 United Technologies Corporation Overunning clutch spring
DE3624330C1 (de) * 1986-07-18 1987-09-10 Rheinmetall Gmbh Hohlladungstochtergeschoss mit einer Geschosshuelle und vorderseitigem Zuendabstandshalter

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US1203062A (en) * 1915-08-02 1916-10-31 John B Semple Grenade.
US2458576A (en) * 1943-10-04 1949-01-11 Nicholas L Etten Fragmentation bomb
US2382277A (en) * 1943-10-30 1945-08-14 Budd Edward G Mfg Co Munitions
US3434422A (en) * 1959-04-22 1969-03-25 Chamberlain Mfg Corp Continuous rod mat
US3855933A (en) * 1967-05-11 1974-12-24 Us Army Dual purpose grenade
FR2312009A1 (fr) * 1975-05-23 1976-12-17 Thomson Brandt Enveloppe de charge explosive et notamment projectile a fragmentation
BE889289A (fr) * 1981-06-18 1981-12-18 Prb N V Prb Sa Tete creuse a fragmentation controlee pour engin explosif
DE3069676D1 (en) * 1979-12-13 1985-01-03 Secr Defence Brit Improvements in or relating to explosive fragmentation devices
US4456705A (en) * 1981-12-31 1984-06-26 Usm Corporation Heat fusible-expandable mastic for automobile floor pans
US4590652A (en) * 1983-10-14 1986-05-27 Apx Group Inc. Method for fabricating an air gap pipe
DE8427781U1 (de) * 1984-09-21 1985-05-15 Rheinmetall GmbH, 4000 Düsseldorf Gefechtskopf
DE8427962U1 (de) * 1984-09-22 1985-05-02 Rheinmetall GmbH, 4000 Düsseldorf Gefechtskopf
CH675475A5 (en) * 1987-12-10 1990-09-28 Karl Merz Explosive member with mounted detonator head - having hollow cavity, explosive charge connecting flange, extra edge, external contour annular and main wall

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR792362A (fr) * 1935-07-11 1935-12-30 Perfectionnement à la fabrication des ressorts à boudin
US2393275A (en) * 1943-09-04 1946-01-22 Budd Edward G Mfg Co Method of making fragmentation bombs
US2673730A (en) * 1948-10-28 1954-03-30 Hupp Arleigh Glynn Spring for spring clutches
US2798431A (en) * 1951-01-25 1957-07-09 Howard W Semon Fragmentation warhead
US3768414A (en) * 1971-05-21 1973-10-30 Us Navy Controlled fragment warhead
FR2402003A1 (fr) * 1977-08-31 1979-03-30 Bofors Ab Dispositif et procede de traitement d'une tete explosive pour en assurer la fragmentation
US4570318A (en) * 1984-10-12 1986-02-18 United Technologies Corporation Overunning clutch spring
DE3624330C1 (de) * 1986-07-18 1987-09-10 Rheinmetall Gmbh Hohlladungstochtergeschoss mit einer Geschosshuelle und vorderseitigem Zuendabstandshalter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001079781A1 (fr) 2000-04-19 2001-10-25 Karl Merz Enveloppe en acier pour grenade et son procede de production
FR2826441A1 (fr) * 2001-06-22 2002-12-27 Tdw Ges Fur Verteidigungstechn Obus a fragmentations
DE10130324A1 (de) * 2001-06-22 2003-03-20 Tdw Ges Fuer Wehrtechnische Wi Splittererzeugender Gefechtskopf
DE10130324B4 (de) * 2001-06-22 2005-03-24 TDW Gesellschaft für wehrtechnische Wirksysteme mbH Splittererzeugender Gefechtskopf

Also Published As

Publication number Publication date
NO172953C (no) 1993-09-29
FI892722A0 (fi) 1989-06-02
EP0344224A1 (fr) 1989-12-06
ZA887516B (en) 1989-08-30
ES2033018T3 (es) 1993-03-01
ATE76186T1 (de) 1992-05-15
CN1032584A (zh) 1989-04-26
BR8807247A (pt) 1989-10-31
GR3005383T3 (fr) 1993-05-24
NO892461L (no) 1989-06-13
AR241668A1 (es) 1992-10-30
AU2318588A (en) 1989-05-02
CA1323800C (fr) 1993-11-02
EP0344224B1 (fr) 1992-05-13
KR890701980A (ko) 1989-12-22
DE3871140D1 (de) 1992-06-17
US5095821A (en) 1992-03-17
WO1989003500A1 (fr) 1989-04-20
DK249289A (da) 1989-05-23
NO892461D0 (no) 1989-06-13
IL87958A (en) 1992-11-15
DK249289D0 (da) 1989-05-23
PT88744A (pt) 1989-07-31
JPH02501853A (ja) 1990-06-21
FI94672B (fi) 1995-06-30
IL87958A0 (en) 1989-03-31
FI892722A (fi) 1989-06-02
PT88744B (pt) 1994-01-31
NO172953B (no) 1993-06-21
FI94672C (fi) 1995-10-10

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