EP0158700A2 - Fusée pour projectile secondaire - Google Patents

Fusée pour projectile secondaire Download PDF

Info

Publication number
EP0158700A2
EP0158700A2 EP84108068A EP84108068A EP0158700A2 EP 0158700 A2 EP0158700 A2 EP 0158700A2 EP 84108068 A EP84108068 A EP 84108068A EP 84108068 A EP84108068 A EP 84108068A EP 0158700 A2 EP0158700 A2 EP 0158700A2
Authority
EP
European Patent Office
Prior art keywords
detonator
housing
ignition
carrier
detonator carrier
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
EP84108068A
Other languages
German (de)
English (en)
Other versions
EP0158700A3 (en
EP0158700B1 (fr
Inventor
Günter Ing. grad. Backstein
Hans Walter Unger
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 GmbH
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 GmbH filed Critical Rheinmetall GmbH
Publication of EP0158700A2 publication Critical patent/EP0158700A2/fr
Publication of EP0158700A3 publication Critical patent/EP0158700A3/de
Application granted granted Critical
Publication of EP0158700B1 publication Critical patent/EP0158700B1/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
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/14—Double fuzes; Multiple fuzes
    • F42C9/142—Double fuzes; Multiple fuzes combined time and percussion fuzes in which the timing is caused by combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/18—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved
    • F42C15/184—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a slidable carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
    • F42C15/22—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using centrifugal force

Definitions

  • Daughter storeys are storeys that are transported in large numbers from a cargo storey over a target area and are ejected there. -
  • the end piece of the screwed-in firing needle facing away from the detonator carrier is connected to a stabilizing band, which unfolds after the ammunition has been ejected and is intended to exert a torque on the screwed-in firing needle in order to unlock the detonator Frictional relationships in the threaded connection between the firing needle and the housing inevitably lead to undesirable time deviations when the detonators of the individual subsidiary storeys are focused, which then becomes disadvantageous in particular impact if the subsidiary storeys are ejected at a relatively low height and there is only a comparatively short period of time until the target hits.
  • the invention has for its object to provide a new type of detonator that works much more precisely and in which the time to focus the detonator can be adjusted with a much closer tolerance.
  • FIG. 1 shows a first exemplary embodiment of the invention in a sectional illustration along A - B according to FIG. 3. Only the detonator part of the daughter story essential for understanding the invention is shown, which comprises a housing 1 connected to the active part of the daughter story.
  • Such daughter storeys are arranged in a large number in several layers one behind the other in the payload space of a support storey, which is also not shown in the drawings. They are transported from this carrier storey over a target area and ejected there. You then sink - independently of one another - down to the target area, whereby you - if necessary equipped with sensors - automatically locate the targets and attach their active charge.
  • an ignition needle 7 is arranged centrally in the housing 1 of the igniter in the interior of a 5-bowl-shaped cover 12 which is movable relative to the housing 1.
  • the wall 12 'of the cover 12 has recesses 5' into which locking rivets 5 fastened on spring plates 4 which are fixedly arranged on the housing and can be pivoted out radially. These rivets 5 prevent the cover 12 together with the ignition needle 7 fastened to it by means of the screw 19 under the pressure of the lifting spring 18 in the axial direction from the detonator Carrier 15 lifts, in its empty bore 15 'engages the tip 7' of the firing needle 7 in the position shown in Fig. 1.
  • the hood 12 encompassing in several layers and thereby securing the locking rivets 5 in their holding position, a winding band 11 is arranged in the front part of the housing 1, which is still surrounded in the radial direction outwards by a securing ring 10 and a transport securing ring 9.
  • the firing needle 7 is concentrically surrounded by a striking mass 6, which is designed as a hollow cylinder with a graduated outer diameter.
  • This detent is caused by a ball loaded by a locking spring 17, which engages in a first recess 13 'arranged in the housing 1.
  • the function of the detonator is as follows: since the carrier projectile rotates about its longitudinal axis at the time the subsidiary storeys are ejected, a swirl is also communicated to the ejected daughter storeys. As a result, the transport securing ring 9 and the securing ring 10 open to such an extent that the clamp fit of these two parts on the housing 1 of the igniter is canceled. Now the securing band 11, which is preferably made of a textile material, gets into the air flow and unwinds in layers, for which a certain time is required. During this time, the detonator remains fully secured, ie the ignition needle 7 and the detonator carrier 15 remain in the position shown in FIG. 1.
  • the winding tape 11 After the winding tape 11 has been completely unrolled, it can either be thrown off or for further flight stabilization of the daughter remain attached to the detonator. Now the spring plates 4 fastened on one side to the housing 1 can bend radially outward and thereby unlock the cover 12, since the locking rivets 5 fastened to the spring plates 4 open the recesses 5 '. Under the action of the air forces and supported by the lifting spring 18, the cover 12 now moves a little in the axial direction out of the housing 1 of the detonator and lifts the ignition needle 7 attached to it from the detonator carrier 15 until the collar 7 "of the ignition needle 7 strikes the impact mass 6.
  • the released detonator carrier 15 migrates in the radial direction until the ball 13 enters the second recess 13 " engages in the housing 1 and fixes the detonator carrier 15 in this position.
  • the detonator 16 is aligned with the tip 7 'of the firing needle 7, which is kept in contact with the striking mass 6 at a distance from the detonator 16 by means of the lifting spring 18.
  • the radially outwardly pivoted spring plates 4 act in a particularly advantageous manner as a swirl brake, whereby the speed of rotation of the daughter storey rotating after ejection can be reduced to such an extent that the residual rotation that remains has as little influence as possible on the active part of the daughter storey, which is usually designed as a hollow charge .
  • a reliable ignition of the active charge could still be achieved even if the daughter projectile would no longer show any rotation on impact with the target.
  • the impact mass 6 slides, together with the firing needle 7 and the cover 12 attached thereto, against the force of the comparably weak lifting spring 18 in the direction of the detonator 16, which is aligned with the tip 7 'of the firing needle 7, as a result of which the latter is ignited.
  • the high total impact mass, formed from parts 6, 7 and 12, ensures - in connection with the good guidance of the firing pin 7 - even when hitting soft targets, such as. B. sand, mud or snow, high reliability in ignition.
  • a return spring 20 is arranged in a recess in the detonator carrier 15 in the igniter shown in section in FIG. 5, which is supported on the one hand at an angle 20 'of the cover plate 14 fixed to the housing and on the other hand on the detonator carrier 15 which is arranged in a movable manner.
  • the detonnator carrier 15 moves out of the empty bore 15' as a result of the influence of centrifugal force against the force of the return spring 20 into the ignition.
  • the locking spring 21 consists of a spring sheet metal strip which is punctiform on one side, for. B. by welds 21 ', is firmly connected to the housing 1 and the free end 21 "behind a detonator carrier 15 connected paragraph 15".
  • a self-disassembling device is provided which, if the detonator 16 fails to ignite after a predefinable time delay, nevertheless causes the active charge to ignite and thereby prevents the occurrence of unexploded ordinances with even greater certainty.
  • the detonator of the subsidiary storey is designed such that when the detonator carrier 15 migrates into the ignition position, an additional ignition element likewise located in the detonator carrier 15 strikes a second piercing needle attached to the housing 1 of the detonator is, whereby a pyrotechnic delay line is activated. After the delay time has elapsed, this delay line ignites the active charge of the subsidiary storey via a pyrotechnic reinforcing element, whereby it is destroyed with certainty and no unexploded ordnance is created.
  • FIGS. 9 to 12 This embodiment of the invention is shown in FIGS. 9 to 12.
  • the parts which correspond to the previously described exemplary embodiments are again provided with the same reference numbers.
  • the functional sequence in this embodiment of the invention is as follows: Before unlocking the firing pin 7, two, e.g. B. on leaf springs 28 resiliently attached centrifugal bolt 29 released by their radial pivoting due to the centrifugal force, the detonator carrier 15 so that it can slide after unlocking by the tip 7 'of the ignition needle 7 in the ignition position in which the detonator 16 is aligned below the lifted ignition needle 7 is located.
  • the ignition element 23 additionally arranged in the detonator carrier 15 is pushed against a further ignition needle 22 arranged fixed to the housing, as a result of which the ignition element 23 is ignited.
  • the side of a locking spring 21 facing the second ignition needle 22 comes into engagement with the detonator carrier in such a way that a return movement is no longer possible.
  • the return spring 20 pushes the detonator carrier 15 into an irreversible blind position in which the detonator carrier 15 is permanently blocked by the locking spring 21 is.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
EP84108068A 1983-09-15 1984-07-10 Fusée pour projectile secondaire Expired - Lifetime EP0158700B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833333312 DE3333312A1 (de) 1983-09-15 1983-09-15 Zuender fuer ein tochtergeschoss
DE3333312 1983-09-15

Publications (3)

Publication Number Publication Date
EP0158700A2 true EP0158700A2 (fr) 1985-10-23
EP0158700A3 EP0158700A3 (en) 1988-05-25
EP0158700B1 EP0158700B1 (fr) 1990-10-24

Family

ID=6209145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108068A Expired - Lifetime EP0158700B1 (fr) 1983-09-15 1984-07-10 Fusée pour projectile secondaire

Country Status (7)

Country Link
US (1) US4612858A (fr)
EP (1) EP0158700B1 (fr)
DE (2) DE3333312A1 (fr)
DK (1) DK408884A (fr)
ES (1) ES534812A0 (fr)
IL (1) IL72949A (fr)
NO (1) NO842813L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256320A3 (fr) * 1986-07-22 1988-09-14 DIEHL GMBH & CO. Fusée double à autodestruction pour bombe aérienne
GR890100460A (el) * 1989-07-20 1991-12-10 Panagiotis Karamanolis Αυτοαφοπλιζομενος πυροσωληνας βομβιδων βομβιδοφορων πυρομαχικων.
EP0411258A3 (en) * 1989-07-29 1993-03-03 Rheinmetall Gmbh Bomblet fuze

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1183906B (it) * 1985-06-28 1987-10-22 Borletti Spa Spoletta con autodistruzione per submunizione atta ad essere espulsa da un vettore
DE3524080C2 (de) * 1985-07-05 1996-07-18 Rheinmetall Ind Gmbh Zünder für einen Gefechtskopf mit einem durch Formschluß gesicherten Schlagstück
DE3538787A1 (de) * 1985-10-31 1987-05-07 Junghans Gmbh Geb Bomblett-zuender
FR2606136B1 (fr) * 1986-10-30 1989-02-10 France Etat Armement Dispositif de securite et d'armement pour sous-projectiles dispersables
DE3740966A1 (de) * 1987-12-03 1989-06-15 Diehl Gmbh & Co Pyrotechnischer zuender fuer geschosse, raketen, bomblets und minen
DE3740967A1 (de) * 1987-12-03 1989-06-15 Diehl Gmbh & Co Pyrotechnischer zuender fuer geschosse
DE3925235A1 (de) * 1989-07-29 1991-01-31 Rheinmetall Gmbh Bombletzuender
FR2650662B1 (fr) * 1989-08-01 1991-10-11 France Etat Armement Dispositif d'amorcage de chaine pyrotechnique pour sous-munition d'obus cargo
DE4303128C2 (de) * 1993-02-04 1995-10-12 Rheinmetall Ind Gmbh Zündvorrichtung für Geschosse, Raketen, Bomblets und Minen mit einer pyrotechnischen Selbstzerlegervorrichtung
DE19517760C2 (de) * 1995-05-15 1998-03-19 Buck Chem Tech Werke Verfahren und Vorrichtung zur Umlaborierung von Geschossen
GR1004597B (el) * 2003-05-09 2004-06-18 Ευαγγελος Ιωαννη Κωνστας Μηχανικος πυροσωληνας αυτοκαταστροφης βομβιδων βομβιδοφορων πυρομαχικων
BE1016094A3 (fr) * 2004-05-14 2006-03-07 Zeebrugge Forges Sa Dispositif d'autodestruction pour fusee de sous-munition.
US7808362B2 (en) * 2007-08-13 2010-10-05 Littlefuse, Inc. Moderately hazardous environment fuse
US8674803B2 (en) * 2007-08-13 2014-03-18 Littelfuse, Inc. Moderately hazardous environment fuse
US8151708B2 (en) * 2008-02-08 2012-04-10 Pacific Scientific Energetic Materials Company Safe and arm mechanisms and methods for explosive devices
RU2709875C2 (ru) * 2017-02-03 2019-12-23 Акционерное общество "Научно-производственное объединение "Прибор" Блокирующий механизм

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1229669A (en) * 1916-05-06 1917-06-12 Edwin R Stuart Sensitive percussion-fuse.
US1648603A (en) * 1922-05-25 1927-11-08 Bethlehem Steel Corp Detonating fuse
DE698633C (de) * 1936-07-24 1940-11-14 Helmut Junghans Zuender mit Fliehkoerpern
US2516323A (en) * 1943-05-01 1950-07-25 James D Jordan Safety gate
US2537855A (en) * 1944-06-09 1951-01-09 Henry H Porter Point contact fuse
US2790390A (en) * 1952-04-29 1957-04-30 Kenneth L Baker Delay arming, self-destroying and point detonating fuze device
AT222546B (de) * 1958-09-24 1962-07-25 Karl Dipl Ing Leitner Geschoßzünder, insbesondere für Wurfgranaten
US3264995A (en) * 1964-05-11 1966-08-09 Avco Corp Mechanical fuze operable on grazing impact
US3371608A (en) * 1967-06-01 1968-03-05 Avco Corp Fuze with delay firing and impact firing features
CH497682A (de) * 1968-10-14 1970-10-15 Oerlikon Buehrle Ag Aufschlagzünder für Drallgeschosse
US3913483A (en) * 1972-08-11 1975-10-21 Us Army Grenade with fuze
US3886868A (en) * 1973-08-09 1975-06-03 Avco Corp Spinning bomblet fuze
DE2457947A1 (de) * 1974-12-07 1976-06-10 Rheinmetall Gmbh Detonatorsicherung fuer drallgeschosse
US4242963A (en) * 1978-09-25 1981-01-06 General Electric Company Delayed arming fuze for a spinning projectile
DE3037669A1 (de) * 1980-10-04 1982-05-13 Rheinmetall GmbH, 4000 Düsseldorf Zuender fuer drallgeschosse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256320A3 (fr) * 1986-07-22 1988-09-14 DIEHL GMBH & CO. Fusée double à autodestruction pour bombe aérienne
GR890100460A (el) * 1989-07-20 1991-12-10 Panagiotis Karamanolis Αυτοαφοπλιζομενος πυροσωληνας βομβιδων βομβιδοφορων πυρομαχικων.
WO1992012396A1 (fr) * 1989-07-20 1992-07-23 Panagiotis Karamanolis Fusee-detonateur, se desarmant automatiquement, destinee a des grenades de munitions porteuses
EP0411258A3 (en) * 1989-07-29 1993-03-03 Rheinmetall Gmbh Bomblet fuze

Also Published As

Publication number Publication date
DE3333312A1 (de) 1985-04-04
DE3333312C2 (fr) 1991-11-28
EP0158700A3 (en) 1988-05-25
ES8503842A1 (es) 1985-04-16
ES534812A0 (es) 1985-04-16
US4612858A (en) 1986-09-23
DE3483474D1 (de) 1990-11-29
NO842813L (no) 1985-03-18
EP0158700B1 (fr) 1990-10-24
DK408884A (da) 1985-03-16
DK408884D0 (da) 1984-08-28
IL72949A (en) 1989-09-10

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