EP0411245A2 - Dispositif d'allumage d'une sous-munition - Google Patents
Dispositif d'allumage d'une sous-munition Download PDFInfo
- Publication number
- EP0411245A2 EP0411245A2 EP19900105408 EP90105408A EP0411245A2 EP 0411245 A2 EP0411245 A2 EP 0411245A2 EP 19900105408 EP19900105408 EP 19900105408 EP 90105408 A EP90105408 A EP 90105408A EP 0411245 A2 EP0411245 A2 EP 0411245A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- slide
- swirl
- detonator
- projectile
- bomblet
- 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
Links
- 238000010304 firing Methods 0.000 description 17
- 230000000087 stabilizing effect Effects 0.000 description 7
- 239000002360 explosive Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
- F42B10/48—Range-reducing, destabilising or braking arrangements, e.g. impact-braking arrangements; Fall-retarding means, e.g. balloons, rockets for braking or fall-retarding
- F42B10/54—Spin braking means
-
- 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
Definitions
- the invention relates to a detonator for a bomblet projectile with an axially displaceable ignition needle and a slide with detonator charge which can be displaced transversely to the longitudinal direction of the projectile or central axis, and with swirl brake vanes pivotably mounted on the outside of the detonator housing.
- Bomblet levels are submunition levels or daughter levels, which in large numbers, e.g. B. 63 pieces, transported from a large-caliber carrier floor over distances of up to 30 km over a target area and there at an altitude of z. B. ejected 300 m and mechanically set when falling.
- the bomb detonator has a firing pin with a screw mechanism, which is screwed in when secured and engages in a recess in the detonator carrier and prevents it from moving sideways into the focusing position.
- the detonator carrier facing away from the outer end piece of the screwed-in firing needle is connected to a stabilizing loop which unfolds after the bomblet has been ejected from the basement and exerts a torque on the screwed-in firing needle due to the attacking air resistance. After unscrewing the ignition needle, the detonator carrier can move into its focus position by centrifugal force and the detonator is unlocked and focused.
- the swirl brake wing can only carry out this opening process when it is in turn released by the outer securing band; However, this can only take place after the ejection from the carrier floor, so that a further securing possibility of the slide is given regardless of the torque acting on the stabilizing band or the time period in which the firing needle is unscrewed.
- the swirl brake blades do not have a fixed housing stop, but rather, depending on the rotation of the bomblet or the centrifugal force and the opposing inflow air, flexibly swivel up and brake the self-twist of the bomblet "gently" but effectively, the bomblet does not experience any oscillation due to a previous jerky opening the swirl brake wing; this reduces the number of bomblets that are so inclined or tilted during the service that the service function fails because the component of the service impulse acting in the direction of the firing pin axis is too low.
- the reference number 10 denotes an igniter housing, which is fixed in place on a bomblet housing 12 by means of a retaining ring 14.
- a slide 16 Arranged within the detonator housing 10 is a slide 16 with detonator charge 18 which can be displaced transversely to the central axis A of the bomblet floor.
- the illustration shows the slide 16 in the securing position, the detonator charge 18 being shifted laterally out of the straight line between a main firing needle 20 and an amplifier charge 22 arranged in the upper bomblet housing 12 in order to ignite the main explosive charge 24.
- the centrally arranged main firing needle 20 is connected via a screw connection to a sleeve 26, which serves as an additional impact mass and can be displaced axially in the igniter housing 10.
- the firing needle 20 is screwed into the sleeve 26, so that it is supported upwards or backwards against a shoulder of the igniter housing 10.
- the tip 28 of the main firing needle 20 protrudes into a recess (blind hole) arranged on the top of the slide 16 and thus fixes the slide 16 in the securing position.
- a folded stabilizing loop 30 is attached to the end of the main firing needle 20 protruding from the igniter housing 10. Surrounding the outside of the igniter housing 10 and the upper reduced-diameter area of the igniter housing 10 are each on a retaining bolt 66 two radially outwardly pivotable, semicircularly curved swirl brake vanes 32, z. B. made of thin sheet steel. A securing band 34 is wound around the swirl brake vanes 32 folded in. The securing strap 34 and the stabilizing loop 30 are held in their wound position by a hood-like, two-part plastic securing shell 36, which in turn is held in position by a spring steel securing ring 38.
- the daughter floors are stacked one inside the other in a space-saving manner as columns.
- Such a neighboring bomblet 60 which completely covers the detonator housing 10, is indicated in FIG.
- the detonator housing 10 extends far into the conical free space of the shaped charge insert of the adjacent bomblet 60.
- the stabilizing loop 30 is pulled out of its folded-in rest position and unfolded.
- the two securing shells 36 with securing ring 38 detach from the igniter housing 10 and release the securing tape 34.
- the detachable securing band 34 unwinds and releases the swirl brake wings 32, which swivel out due to the centrifugal forces caused by the rotation and reduce the swirl of the bomblet projectile, which now falls down in a stabilized manner.
- a torque acts on the firing needle 20, which unscrews a little to the rear from the sleeve 26, the tip 28 of the firing needle 20 lifts out of the recess in the slide 16 and the slide can be - provided that he is released for this by additional safety devices acting separately - move to his focus position and is therefore in focus for a strike ignition.
- FIG. 1 A locking pin 62 running parallel to the central axis A is arranged vertically on the slide 16.
- an opening 64 is provided in the igniter housing 10 so that the securing pin 62 assumes a position inside the igniter housing 10 when the slide is in the locked position and an end position outside the igniter housing 10 after the slide 16 has been moved into focus.
- the locking pin 62 is in the locked position of the slider 16 with an unfolded swirl brake wing 32 in operative connection, so that the slider 16 can be locked in its locked position.
- the swirl brake wing 32 expediently has an inward-pointing projection 68 which, when the swirl brake wing 32 is not extended, is in contact with the locking pin 62 and overlaps or blocks it in a locking manner.
- FIG. 3 shows a plan view of the detonator housing 10 with a broken line of the swirl brake vanes 32 that have been folded out, the securing band, stabilizing loop and securing clip being omitted.
- At least two swirl brake vanes 32 are pivoted on the right side of a bomblet projectile fired with a right-hand swivel or pivoted on the left side of a bomblet projectile fired with a left-hand swirl on the detonator housing 10 on retaining bolts 66 in such a way that they are pivotable transversely to the longitudinal axis of the projectile or central axis A, and can be pivoted counter to the rotational air flow direction 74 are.
- the direction of rotation 72 of the bomblet projectile, the direction of air flow 74 and the opposite pivoting direction 76 of the swirl brake blades 32 are shown with arrows.
- the projection 68 can expediently be formed on the inside of the swirl brake wing 32 as a bracket 70 fastened on both sides.
- a z. B. environmental loosening of the locking band to ensure the locking of the slider is provided that the locking of the locking pin 62 and the slider 16 can only be canceled after pivoting the swirl brake wing with projection 68 or 70 by an angle of at least 15 °.
- the slider 16 can move into the focusing position by centrifugal force and / or spring force. Then the locking pin 62 is in the position shown in dashed lines outside of the detonator housing 10. Should a bomblet projectile land very softly, e.g. B. fail in a pile of snow and the impact ignition or have an ignition failure and thus not be detonated, the position of the locking pin 62 is very advantageous optically recognizable the condition of the bomb igniter and thus a safety assessment possible.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Bags (AREA)
- Emergency Lowering Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3925236A DE3925236A1 (de) | 1989-07-29 | 1989-07-29 | Zuender fuer ein bombletgeschoss |
DE3925236 | 1989-07-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0411245A2 true EP0411245A2 (fr) | 1991-02-06 |
EP0411245A3 EP0411245A3 (en) | 1993-02-03 |
EP0411245B1 EP0411245B1 (fr) | 1995-08-23 |
Family
ID=6386174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90105408A Expired - Lifetime EP0411245B1 (fr) | 1989-07-29 | 1990-03-22 | Dispositif d'allumage d'une sous-munition |
Country Status (3)
Country | Link |
---|---|
US (1) | US5046424A (fr) |
EP (1) | EP0411245B1 (fr) |
DE (2) | DE3925236A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9813558D0 (en) * | 1998-06-24 | 2002-03-06 | Royal Ordnance Plc | Device for exerting drag |
DE19916775C2 (de) * | 1999-04-15 | 2002-12-05 | Rheinmetall W & M Gmbh | Submunitionsgeschoß |
US6336407B1 (en) * | 2000-02-10 | 2002-01-08 | The United States Of America As Represented By The Secretary Of The Army | Pyrotechnic slide assembly |
GB0111171D0 (en) * | 2001-05-08 | 2001-06-27 | Special Cartridge Company Ltd | Projictile |
US6968785B2 (en) * | 2003-09-22 | 2005-11-29 | The United States Of America As Represented By The Secretary Of The Army | Locking and stabilizing device for grenades |
US9593922B2 (en) * | 2013-03-14 | 2017-03-14 | Bae Systems Land & Armaments L.P. | Fin deployment system |
IL231186A (en) * | 2014-02-26 | 2017-07-31 | Israel Aerospace Ind Ltd | Wing opening mechanism |
CN105890472A (zh) * | 2014-11-24 | 2016-08-24 | 重庆长安工业(集团)有限责任公司 | 一种人工防雹增雨弹引信药盘装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE304246C (fr) * | ||||
US3855933A (en) * | 1967-05-11 | 1974-12-24 | Us Army | Dual purpose grenade |
US4044684A (en) * | 1976-07-13 | 1977-08-30 | Federal Laboratories, Inc. | Aerosol projectile for lachrymating material |
US4662278A (en) * | 1985-03-18 | 1987-05-05 | Lillios William N | Fuse assembly |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3913483A (en) * | 1972-08-11 | 1975-10-21 | Us Army | Grenade with fuze |
DE2242930C2 (de) * | 1972-08-31 | 1987-01-02 | Rheinmetall GmbH, 4000 Düsseldorf | Hohlladungstochtergeschoß |
US3998164A (en) * | 1975-12-15 | 1976-12-21 | The United States Of America As Represented By The Secretary Of The Army | Self-destruct delay fuze |
US4004514A (en) * | 1976-01-20 | 1977-01-25 | The United States Of America As Represented By The Secretary Of The Navy | Roll rate stabilized wrap around missile fins |
US4455940A (en) * | 1982-06-28 | 1984-06-26 | The United States Of America As Represented By The Secretary Of The Army | Random time delay fuze |
IT1183906B (it) * | 1985-06-28 | 1987-10-22 | Borletti Spa | Spoletta con autodistruzione per submunizione atta ad essere espulsa da un vettore |
ZA867954B (en) * | 1985-12-18 | 1987-06-24 | Israel State | Cluster bomb grenade with means for spin rate attenuation |
ES8706945A1 (es) * | 1986-04-08 | 1987-07-01 | Instalaza Sa | Espoleta para granada explosiva |
DE3624713C2 (de) * | 1986-07-22 | 1995-09-07 | Diehl Gmbh & Co | Aufschlagzünder mit Selbstzerlegeeinrichtung für einen Bomblet |
DE3740966A1 (de) * | 1987-12-03 | 1989-06-15 | Diehl Gmbh & Co | Pyrotechnischer zuender fuer geschosse, raketen, bomblets und minen |
-
1989
- 1989-07-29 DE DE3925236A patent/DE3925236A1/de not_active Withdrawn
-
1990
- 1990-03-22 EP EP90105408A patent/EP0411245B1/fr not_active Expired - Lifetime
- 1990-03-22 DE DE59009552T patent/DE59009552D1/de not_active Expired - Fee Related
- 1990-07-30 US US07/559,350 patent/US5046424A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE304246C (fr) * | ||||
US3855933A (en) * | 1967-05-11 | 1974-12-24 | Us Army | Dual purpose grenade |
US4044684A (en) * | 1976-07-13 | 1977-08-30 | Federal Laboratories, Inc. | Aerosol projectile for lachrymating material |
US4662278A (en) * | 1985-03-18 | 1987-05-05 | Lillios William N | Fuse assembly |
Also Published As
Publication number | Publication date |
---|---|
DE3925236A1 (de) | 1991-01-31 |
EP0411245A3 (en) | 1993-02-03 |
US5046424A (en) | 1991-09-10 |
EP0411245B1 (fr) | 1995-08-23 |
DE59009552D1 (de) | 1995-09-28 |
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