EP0379142A2 - Fusée d'allumage pour bombe - Google Patents

Fusée d'allumage pour bombe Download PDF

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Publication number
EP0379142A2
EP0379142A2 EP90100828A EP90100828A EP0379142A2 EP 0379142 A2 EP0379142 A2 EP 0379142A2 EP 90100828 A EP90100828 A EP 90100828A EP 90100828 A EP90100828 A EP 90100828A EP 0379142 A2 EP0379142 A2 EP 0379142A2
Authority
EP
European Patent Office
Prior art keywords
detonator
pin
needle
bushing
movement
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.)
Withdrawn
Application number
EP90100828A
Other languages
German (de)
English (en)
Other versions
EP0379142A3 (fr
Inventor
Walter Winterhalter
Horst Dipl.-Ing. Moosmann
Josef King
Andreas Dipl.-Ing. Hälssig
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.)
Gebrueder Junghans GmbH
Original Assignee
Gebrueder Junghans 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 Gebrueder Junghans GmbH filed Critical Gebrueder Junghans GmbH
Publication of EP0379142A2 publication Critical patent/EP0379142A2/fr
Publication of EP0379142A3 publication Critical patent/EP0379142A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • F42C15/188—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 rotatable carrier

Definitions

  • the invention relates to a detonator for a bomblet with a stabilizing band, with a detonator pin arresting a detonator carrier and the detonator pin pulled out of the detonator carrier in focus, an energy accumulator being tensioned and the detonator carrier detonator in the axial path of movement of the detonator pin in a longitudinal axis vertical plane is pivoted and locked and the firing pin moves either at the target impact or delayed by a delay device by means of the energy store on the detonator.
  • Such a detonator is described in DE-OS 35 38 787.
  • the unfolded stabilizing tape pulls or unscrews the firing pin into focus.
  • the lift mechanism is tensioned.
  • the firing needle is locked in focus.
  • the detonator carrier is brought into focus by means of a drawstring located on the outside of the detonator and locked in place. With a vertical target impact, the stabilization band is relieved so far that the energy store strikes the firing pin on the detonator.
  • An ampoule filled with acid is provided as a delay device.
  • the acid acts on an acid-sensitive intermediate part of the ignition needle.
  • the intermediate piece of the firing needle will be eaten away, so that it is struck by the energy store on the detonator and self-disassembly takes place.
  • the energy accumulator only serves to move the ignition needle. It has no influence on the delay device and its timing.
  • DE-OS 36 24 713 describes an igniter for a bomblet. With this, no force element is tensioned during the transition from securing to arming.
  • a pyrotechnic set is provided as the delay device, which is ignited in the arming position and ignites the detonator after a delay time, if an impact ignition has not taken place beforehand.
  • DE-OS 33 33 667 describes another detonator for a bomblet.
  • springs provided as energy stores are already tensioned when the igniter is installed. They support the striking of the firing pin on the detonator if the firing pin is not accelerated sufficiently when the bomblet hits the target.
  • a delay device for self-disassembly is not provided here. A displacement of the firing needle during descent can lead to the energy accumulator hitting the firing needle on the detonator before the ammunition hits the target.
  • the object of the invention is to propose a detonator of the type mentioned at the outset, in which the delay device is in mechanical operative connection with the energy store, as a result of which the energy store drives the delay device out of the arming position, and in which the ignition needle is also movable independently of the energy storage device from the arming position is.
  • the above task is for a detonator
  • the firing needle is axially displaceable in a bushing which can be rotated about the longitudinal axis
  • the bushing is provided at least with a guide slot which has an incline at least in some areas and is penetrated by a pin
  • the pin is acted upon by the energy accumulator and on the one hand is only displaceable in the longitudinal axis direction and on the other hand protrudes into the movement path of a collar of the firing needle and that the pin rotates the bushing in the direction of the longitudinal axis in one direction under the action of the energy accumulator and the deceleration device this rotary movement at least in one Partial area brakes and the pin from the focus by its axial movement acts on the firing pin on its collar and hits it on the detonator.
  • a mechanical operative connection between the energy accumulator and the delay device is created via the pin and the socket.
  • the delay device thus acts as a brake on the relaxation of the energy accumulator.
  • a sufficiently long and defined delay time between arming and self-disassembly is achieved. Neither an acid-filled ampoule nor a pyrotechnic delay set is necessary for this.
  • the firing pin hits the detonator regardless of the energy store.
  • the socket is connected to the detonator carrier and the firing needle rotates the socket by means of the pin and the pitch of the guide slot when moving from the securing position to the arming position.
  • This causes the detonator carrier to pivot into focus.
  • the socket points a dual function by first pivoting the detonator into an arming position during the movement from securing to arming and then braking the relaxation of the energy accumulator before self-disassembly after arming.
  • the coupling of the bushing to the detonator carrier ensures that it is brought into focus regardless of the centrifugal force and without an additional tension band.
  • the delay device is formed by a piston-cylinder arrangement.
  • the deceleration device is formed by a gear train.
  • An igniter has a housing (1).
  • a tubular shaft (2) is slidably guided in the longitudinal axis direction (L), which has an external thread (3) at the top, which is securely screwed into an internal thread (4) of the housing (1).
  • a stabilizing band (5) is attached to the tubular shaft (2) outside the housing (1).
  • An ignition needle (6) is displaceably guided in the longitudinal axis direction (L) in the tubular shaft (2).
  • Balls (7) are provided for the axial connection of the tubular shaft (2) and the firing needle (6). These engage partially in a recess (8) of the firing needle (6) and partially in Openings (9) of the tubular shaft (2).
  • a bushing (10) is mounted coaxially to the tubular shaft (2) so that it can rotate about the longitudinal axis (L).
  • the bushing (10) is supported axially on the one hand on the housing (1) and on the other hand on a pivotable detonator carrier (11).
  • the bushing (10) has two (see FIG. 7) guide slots (12).
  • the guide slot (12) runs in an axial length (S) in a slope (13) which extends around 60 ° on the circumference of the bushing (10). Following the slope (13), the guide slot (12) runs axially parallel over a length (H) (cf. FIG. 1, FIG. 8).
  • a pin (14) extends through each guide slot (12).
  • the pins (14) are fastened to a pressure ring (15) which is mounted on the outside of the bushing (10) so as to be displaceable in the longitudinal axis direction (L) and is acted upon by a pressure spring (16).
  • the compression spring (16) is supported in the housing (1).
  • the pin (14) protrudes with its end projecting beyond the pressure ring (15) into a groove (17) formed in the housing (1) and extending parallel to the longitudinal axis direction (L).
  • the other end of the pin (14) extends through the guide slot (12) and extends into the movement path of a collar (18) of the ignition needle (6).
  • the detonator carrier (11) is pivotally mounted in the housing (1) on a fastening eye (19) in a plane perpendicular to the longitudinal axis direction (L).
  • a detonator (20) is arranged on the detonator carrier (11).
  • a bore (21) is formed on the detonator carrier (11), into which the firing needle (6) engages with its collar (18) in the securing.
  • the detonator carrier (11) is provided with a pin (22).
  • the detonator carrier (11) is held axially in the housing (1) by means of a base (23).
  • a spherical head (24) is one on the detonator carrier (11) Slider (25) mounted, which is guided on the housing (1).
  • the slide (25) is provided with a recess (26) into which a tongue (27) formed on the bottom (23) engages when the detonator carrier (11) in the direction of the arrow (P) (cf. FIG. 3) in focus is pivoted (see FIG. 3, 4, 5). In this position, the slide (25) projects beyond the housing (1) so that the focus can be recognized.
  • a ring (28) is formed on the bushing (10), on which the pressure ring (15) is supported in securing and which carries a switching disc (29) on its side facing the detonator carrier (11).
  • the switching disc (29) is provided with two tabs (30) which, when secured, engage around the pin (22).
  • a switching arm (31) is formed on the switching disc (29).
  • the switching arm (31) (cf. FIGS. 3, 4, 6) acts on a recess (32) of a piston rod (33).
  • a piston (34) connected to the latter is guided in a cylinder (35) which is filled with a hydraulic fluid (36).
  • the cylinder (35) has a filling opening (37) which is tightly closed with a screw (38).
  • an incision (39) is provided as a nozzle, which allows the hydraulic fluid (36) to pass from one piston side (34) to the other piston side when the piston rod (33) moves.
  • a sealing groove (40) runs in the circumference of the piston (34), into which a sealing ring (41) is inserted.
  • the cross section of the sealing groove (40) (cf. FIGS. 3, 6) is of sawtooth shape, so that when the piston (34) moves in one direction, the pressure of the sealing ring (41) on the cylinder (35) is greater than in the case of a movement in the opposite direction.
  • the movement time, ie the braking effect of the piston (34) in its two directions of movement can be varied within wide limits.
  • the external thread (3) of the tubular shaft (2) is screwed into the internal thread (4) of the housing (1).
  • the firing needle (6) is held axially via the balls (7) in such a way that its collar (18) engages in the bore (21) of the detonator (20).
  • the detonator (20) is thereby locked.
  • the tubular shaft (2) presses on the pins (14) with its end edge (42) facing away from the external thread (3).
  • the pressure ring (15) cannot move against the force of the pressure spring (16).
  • the bushing (10) is held against rotation by means of the pins (14) reaching through its guide slots (12) and via the groove 17 in the housing 1.
  • the switching disc (29) is also fixed and its switching arm (31) holds the piston (34) in its one end position via the piston rod (33) (cf. FIG. 6).
  • the bomblet carrying the detonator After the bomblet carrying the detonator has been ejected from a swirling carrier floor, the bomblet descends and the stabilizing band (5) unfolds. Due to the existing relative rotation between the internal thread (4) and the external thread (3), the external thread (3) unscrews from the internal thread (4). Under the action of the stabilizing band (5), the tubular shaft (2) is then pulled out of the housing (1) or the bushing (10) in the direction of arrow (A). He takes the ignition needle (6) with the balls (7). The collar (18) of the ignition needle (6) then strikes the pins (14) and takes them along in the direction of the arrow (A). The compression spring (16) is tensioned over the pressure ring (15).
  • the pin (14) then enters the slope (13) of the guide slot (12) during the further movement of the tubular shaft (2) and the firing needle (6) in the direction of the arrow (A). This starts the bushing (10) and the switching disc (29) to rotate about the longitudinal axis (L).
  • the two tabs (30) pivot the detonator carrier (11) via its pin (22) in the direction of the arrow (P).
  • the switching arm (31) of the switching disk (29) swivels in the direction of the arrow (B) to a flank (43) of the recess (32). Until then, the movement of the tubular shaft (2) and the firing needle (6) has not yet been braked.
  • the detonator carrier (11) is now rotated by approximately 60 °.
  • the focus has now been reached (see FIG. 8).
  • the detonator (20) is below the ignition needle (6) in the path of movement.
  • the detonator carrier (11) has pushed the slide (25) out of the housing (1) and the tongue (27) is in the Recess (26) of the slide (25) latched so that the detonator carrier (11) is locked in the focus position.
  • the compression spring (16) is tensioned.
  • the firing needle (6) moves under the action of inertia directly to the detonator (20) and punctures it.
  • FIGS. 10 to 15 is essentially the same as the exemplary embodiment according to FIGS. 1 to 9. Corresponding components are given the same reference symbols in the following.
  • the bushing (10) which is axially supported in the housing (1) is provided with the internal thread (4).
  • the stabilizing tape (5) is attached to the ignition needle (6).
  • a gear train (45) is provided as a fidget anchor mechanism, the intermeshing gear wheels of which are mounted in the housing (1) and on the bottom (23).
  • the ring (28) of the bushing (10) has a partial toothing (46) with a first Gear (47) of the gear train (45) interacts.
  • a fidget anchor (48) is provided at the end of the gear train (45).
  • the first gear (47) is guided in an elongated hole (49) and loaded in it with a rod spring (50) so that the gear (47) is only rotated in one direction of rotation of the partial toothing (46).
  • the bushing (10) is provided with an incision (51) into which the pin (22) of the detonator carrier (11) engages.
  • the grooves (17) of the housing (1) have an extension (52) with a 45 ° slope (53) (see FIG. 13).
  • the firing needle (6) engages in the bore (21) of the detonator carrier (11). This blocks it so that it cannot be swiveled. Its pin (22) engages in the incision (51), so that the bushing (10) is held non-rotatably.
  • the pressure ring (15) could move against the force of the compression spring (16) during the launch acceleration or the vibration test. This could lead to deadlocks. Such a movement of the pressure ring (15) is avoided, however, by the pins (14) projecting through the guide slots (12) of the bushing (10) projecting into the extension (52) of the grooves (17). As a result, when the pressure ring (15) moves, they can at most reach the 45 ° slope (53). As a result, the pressure ring (15) is blocked up to tolerances in the securing (cf. FIG. 13).
  • the stabilizing band (5) unfolds.
  • the ignition needle (6) with its external thread (3) is unscrewed from the internal thread (4) of the bushing (10).
  • the ignition needle (6) then no longer protrudes into the bore (21) of the detonator carrier (11). It is thus pre-unlocked, but is still held in a safe position via the incision (51) in the still untwisted socket (10).
  • the ignition needle (6) is pulled further out of the bushing (10). Your collar (18) then also hits the pins (14) and takes them in direction (A). They slide over the 45 ° slope (53).
  • the bushing (10) is pivoted by a few degrees, for example 10 °, counter to the direction of the arrow (P) (see FIG. 11) until each pin (14) in the section of the groove (17) that is only parallel to the longitudinal axis (L) ) is outside the extension (52).
  • the pins (14) then reach the slopes (13) of the guide slots (12) of the bushing (10). This rotates the bushing (10) in the direction of the arrow (P). By means of its incision (51), it takes the detonator carrier (11) with it on its pin (22).
  • the leaf spring (54) In the focused position (cf. FIG. 14, FIG. 15), the leaf spring (54) is latched into a nose (55) of the detonator carrier (11), so that it is locked.
  • the compression spring (16) is tensioned over the pressure ring (15), the pins (14), the collar (18) by the force of the stabilizing band (5) acting on the ignition needle (6).
  • the ignition needle (6) is turned against the direction (A.) Via the pins (14) and the collar (18) ) emotional. If the target strike is sufficiently strong, the firing needle (6) can now strike the detonator (20) at any time, ahead of the pins (14). If such a target does not hit, the firing needle (6) is moved over the pins (14) in the direction of the detonator (20). Starting from the focus, the pins initially slide on the slope (13).
  • the bushing (10) Since they can only move parallel to the longitudinal axis direction (L) because of their guidance in the grooves (17), the bushing (10) is rotated in the direction of the arrow (C) (cf. FIG. 15). This rotary movement is braked by the gear train (45), since in this direction of rotation the first gear wheel (47) engages with the partial toothing (46). The gear train (45) essentially determines the time until self-disassembly. When the pins (14) then reach the axially parallel length of the guide slots (12) of the bushing (10), the firing needle (6) strikes the detonator (20) under the residual energy of the compression spring (16) for self-dismantling.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
EP19900100828 1989-01-20 1990-01-16 Fusée d'allumage pour bombe Withdrawn EP0379142A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3901525A DE3901525A1 (de) 1989-01-20 1989-01-20 Zuender fuer ein bomblet
DE3901525 1989-01-20

Publications (2)

Publication Number Publication Date
EP0379142A2 true EP0379142A2 (fr) 1990-07-25
EP0379142A3 EP0379142A3 (fr) 1992-10-14

Family

ID=6372412

Family Applications (1)

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EP19900100828 Withdrawn EP0379142A3 (fr) 1989-01-20 1990-01-16 Fusée d'allumage pour bombe

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EP (1) EP0379142A3 (fr)
DE (1) DE3901525A1 (fr)
IL (1) IL93089A (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938463A (en) * 1957-02-26 1960-05-31 Hotchkiss Brandt Soc Percussion fuze
FR1280757A (fr) * 1960-11-23 1962-01-08 Hotchkiss Brandt Fusée perfectionnée pour projectile à giration
US3712217A (en) * 1970-06-02 1973-01-23 Us Army Dispenser launched air arming bomb fuze
DE3333667A1 (de) * 1983-09-17 1985-03-28 Honeywell Gmbh, 6050 Offenbach Zuend- und sicherungseinrichtung fuer abwurfmunition
DE3344009A1 (de) * 1983-12-06 1985-06-13 Bundesrepublik Deutschland, vertreten durch den Bundesminister der Verteidigung, dieser vertreten durch den Präsidenten des Bundesamtes für Wehrtechnik und Beschaffung, 5400 Koblenz Aufschlagzuender fuer bombletts
DE3538787A1 (de) * 1985-10-31 1987-05-07 Junghans Gmbh Geb Bomblett-zuender
DE3624713A1 (de) * 1986-07-22 1988-01-28 Diehl Gmbh & Co Zuender fuer ein fallschirm- oder bandstabilisiertes, im flug rotierendes bomblett

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938463A (en) * 1957-02-26 1960-05-31 Hotchkiss Brandt Soc Percussion fuze
FR1280757A (fr) * 1960-11-23 1962-01-08 Hotchkiss Brandt Fusée perfectionnée pour projectile à giration
US3712217A (en) * 1970-06-02 1973-01-23 Us Army Dispenser launched air arming bomb fuze
DE3333667A1 (de) * 1983-09-17 1985-03-28 Honeywell Gmbh, 6050 Offenbach Zuend- und sicherungseinrichtung fuer abwurfmunition
DE3344009A1 (de) * 1983-12-06 1985-06-13 Bundesrepublik Deutschland, vertreten durch den Bundesminister der Verteidigung, dieser vertreten durch den Präsidenten des Bundesamtes für Wehrtechnik und Beschaffung, 5400 Koblenz Aufschlagzuender fuer bombletts
DE3538787A1 (de) * 1985-10-31 1987-05-07 Junghans Gmbh Geb Bomblett-zuender
DE3624713A1 (de) * 1986-07-22 1988-01-28 Diehl Gmbh & Co Zuender fuer ein fallschirm- oder bandstabilisiertes, im flug rotierendes bomblett

Also Published As

Publication number Publication date
DE3901525A1 (de) 1990-07-26
EP0379142A3 (fr) 1992-10-14
IL93089A0 (en) 1990-11-05
IL93089A (en) 1994-06-24

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