EP0872702A2 - Charge pyrotechnique disposée dans un tube - Google Patents

Charge pyrotechnique disposée dans un tube Download PDF

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Publication number
EP0872702A2
EP0872702A2 EP98106895A EP98106895A EP0872702A2 EP 0872702 A2 EP0872702 A2 EP 0872702A2 EP 98106895 A EP98106895 A EP 98106895A EP 98106895 A EP98106895 A EP 98106895A EP 0872702 A2 EP0872702 A2 EP 0872702A2
Authority
EP
European Patent Office
Prior art keywords
tube
pyrotechnic charge
ball
closure
silicone layer
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
EP98106895A
Other languages
German (de)
English (en)
Other versions
EP0872702B1 (fr
EP0872702A3 (fr
Inventor
Günter Berg
Dieter Faust
Erwin Wrobel
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.)
Diehl Stiftung and Co KG
Original Assignee
Diehl Stiftung and Co KG
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 Diehl Stiftung and Co KG filed Critical Diehl Stiftung and Co KG
Publication of EP0872702A2 publication Critical patent/EP0872702A2/fr
Publication of EP0872702A3 publication Critical patent/EP0872702A3/fr
Application granted granted Critical
Publication of EP0872702B1 publication Critical patent/EP0872702B1/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
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles
    • F42B8/26—Hand grenades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes

Definitions

  • the invention relates to a pyrotechnic charge in a pipe the preamble of claim 1.
  • DE 26 44 230 A1 discloses a practice hand grenade with an ignition delay, in which a pyrotechnic charge u. a. generated a bang. This is this charge is placed in a tube inside the grenade. The pipe closes with one, when the pyrotechnic charge is ignited by the building gas pressure tearing ground. It cannot be ruled out that large parts of the ground fly away with high kinetic energy, which according to the applicable regulations is not permitted.
  • the object of the invention is therefore a closure for a pyrotechnic charge to create, in which parts fly away but these have a very low mass have, so that the energy transmitted through these parts far below a permissible value remain.
  • FIG. 1 shows a hand grenade in longitudinal section and FIG. 2 shows an enlarged one drawn section of a charge tube according to FIG. 1.
  • a practice hand grenade 1 shown in dash-dot lines has a central charge tube 3 with primer 5, a time-delayed set 7 and a bang charge 9 on.
  • the charge tube 3 closes with its free end face 11 approximately with the lower one Face 13 of the practice grenade 1.
  • a bore 15 takes the bang charge 9 on.
  • the charge tube 3 has a conical seat 17 for a ball 18 from a light, foamed styrene and a recess 19 for one disk-shaped or lid-shaped silicone layer 21 consisting of a vulcanizable Silicone rubber.
  • This is crater-shaped 27 and in relation to the ball 18 with respect to the conical seat 17 conical 28.
  • the ball 18 is seated in the conical seat 17 with a slight preload, with about 50% of the Ball surface is glued to the silicone layer 21.
  • the silicone layer 21 is in turn over the surface of the recess 19 and part of the conical seat 17 glued to the charge tube 3.
  • a very thin, membrane-shaped layer 31 of the silicone layer 21 enables the Ball 18 exits charge tube 3.
  • the diameter 23 of the recess 19 is larger than the diameter 25 of the Ball 18. Because of this and through the conical seat 17, 28 or the edge 29 there is a Large adhesive surface of the silicone layer 21 on the charge tube 3 and on the ball 18 before. In the event of hard impacts in the axial direction of the charge tube 3, this ensures that the bang charge 9 applied to the ball 18 by the ball 18 and the silicone layer 21 existing closure 30 an opening 33 of the charge tube 3 closes securely.
  • the time-delayed set 7 burns and ignites the bang charge 9.
  • the gas pressure of the bang charge 9 drives the ball 18 out of it Tapered seat 17.
  • the silicon layer 21 increases in the area of the layer 31 deformed until the ball 18, the increasingly thin silicon layer 21, 31st pierces.
  • the silicone layer 21, 31 therefore remains on the charge tube 3 while the ball 18 due to its very low mass and due to the large air resistance quickly falls to the ground. The given conditions for the kinetic Energy and flying distance of flying parts are not reached, so that the safety conditions are met.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Toys (AREA)
  • Materials For Medical Uses (AREA)
EP98106895A 1997-04-19 1998-04-16 Charge pyrotechnique disposée dans un tube Expired - Lifetime EP0872702B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19716511 1997-04-19
DE19716511A DE19716511A1 (de) 1997-04-19 1997-04-19 Pyrotechnische Ladung in einem Rohr

Publications (3)

Publication Number Publication Date
EP0872702A2 true EP0872702A2 (fr) 1998-10-21
EP0872702A3 EP0872702A3 (fr) 2000-01-26
EP0872702B1 EP0872702B1 (fr) 2003-10-01

Family

ID=7827084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98106895A Expired - Lifetime EP0872702B1 (fr) 1997-04-19 1998-04-16 Charge pyrotechnique disposée dans un tube

Country Status (5)

Country Link
EP (1) EP0872702B1 (fr)
AT (1) ATE251301T1 (fr)
DE (2) DE19716511A1 (fr)
DK (1) DK0872702T3 (fr)
NO (1) NO317408B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7621222B2 (en) 2001-08-23 2009-11-24 Raytheon Company Kinetic energy rod warhead with lower deployment angles
DE202004018014U1 (de) * 2004-11-20 2006-04-27 Diehl Bgt Defence Gmbh & Co. Kg Rohr mit einer pyrotechnischen Ladung für eine Übungsgranate oder einen Feuerwerksartikel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2644230A1 (de) 1976-03-15 1977-09-29 Francesco Moneta Handgranate mit zuendverzoegerung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR844961A (fr) * 1937-10-20 1939-08-07 Anciens Ets Skoda Projectile à retardateur dynamique et relais
FR1439815A (fr) * 1961-03-13 1966-05-27 Zd Y Rijnove Revoluce Narodni Détonateur électrique à retardement et antidéflagrant
DE1969984U (de) * 1967-02-28 1967-10-05 Bock Geb Knallkorper mit kanonenschlag.
DE7235812U (de) * 1972-09-29 1973-02-08 Diehl Übungshandgranate
AT396304B (de) * 1991-03-26 1993-08-25 Oregon Ets Patentverwertung Uebungs-handgranatenzuender

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2644230A1 (de) 1976-03-15 1977-09-29 Francesco Moneta Handgranate mit zuendverzoegerung

Also Published As

Publication number Publication date
DK0872702T3 (da) 2004-02-02
DE59809762D1 (de) 2003-11-06
ATE251301T1 (de) 2003-10-15
NO981703L (no) 1998-10-20
EP0872702B1 (fr) 2003-10-01
DE19716511A1 (de) 1998-10-22
NO317408B1 (no) 2004-10-25
EP0872702A3 (fr) 2000-01-26
NO981703D0 (no) 1998-04-16

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