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EP0267407B1 - Safety device for the fuse of a war head - Google Patents

Safety device for the fuse of a war head Download PDF

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Publication number
EP0267407B1
EP0267407B1 EP87114311A EP87114311A EP0267407B1 EP 0267407 B1 EP0267407 B1 EP 0267407B1 EP 87114311 A EP87114311 A EP 87114311A EP 87114311 A EP87114311 A EP 87114311A EP 0267407 B1 EP0267407 B1 EP 0267407B1
Authority
EP
European Patent Office
Prior art keywords
rotor
safety device
collar
safety
fuze
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.)
Expired - Lifetime
Application number
EP87114311A
Other languages
German (de)
French (fr)
Other versions
EP0267407A1 (en
Inventor
Andreas Hälssig
Horst Mossmann
Horst Dinger
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 EP0267407A1 publication Critical patent/EP0267407A1/en
Application granted granted Critical
Publication of EP0267407B1 publication Critical patent/EP0267407B1/en
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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes

Definitions

  • the invention relates to a safety device for an igniter of a warhead according to the preamble of claim 1.
  • a safety device for detonators of swirl-less or low-swirl projectiles is known, which has a rotor with edge recesses into which a two-armed pawl under the force of a spring ensures the Igniter intervenes.
  • the pawl which can be pivoted about an axis of rotation, is also connected to a recoil pin system and, together with the return spring and the recoil pin system, additionally forms a safety device in the event of incorrect assembly.
  • these mechanical means are not intended to prevent the rotor from moving from its securing to the armed position when the ignition device is installed.
  • the built-in securing element has the effect that in its one position (blocking position) the assignment of the ignition device to the ammunition is prevented and that in its other position (installation position) this assignment is permitted. Due to the coupling point between the rotor and the built-in securing element, the rotor, which is in the armed position, blocks the installed securing element in the blocking position. In securing the rotor, the built-in securing element is released for the transition to the installed position. With this safety device it is forcibly achieved that an ignition device with the rotor in focus cannot be installed in the ammunition. The ignition device can only be attached to a warhead when the rotor is in the safe position.
  • the built-in safety link must be operated manually. If this securing element is blocked, the rotor must first be placed in the securing position.
  • An ignition device has a carrier base (1).
  • a rotor (3) rotatable about an axis (2) is mounted on this.
  • the rotor (3) has a bore (4).
  • the rotor (3) is secured with known securing means. When the securing means are released, the rotor (3) swivels in the direction of the arrow (P) (see Figure 2) until the bore (4) is in line with the ignition chain of the ignition device.
  • a built-in securing element (5) formed by a pin is arranged on the carrier base (1).
  • the built-in securing element (5) is guided on the one hand on a bushing (6) screwed into the support base (1) and on the other hand on a bearing plate (7) which is connected to the support base (1) by a bolt (8).
  • the built-in securing element (5) can be moved parallel to the axis (2). It has a locking extension (9) and a collar (10). A compression spring (11) presses the built-in securing element (5) so that its locking extension (9) projects beyond the support base (1) (FIG. 1).
  • a part-circular recess (12) is provided on the outer circumference of the rotor (3). This merges into an annular groove (13) extending on the circumference of the rotor (3).
  • the recess (12) and the annular groove (13) of the rotor (3) on the one hand and the collar (10) of the built-in securing element (5) on the other hand form a coupling point between these two parts.
  • the collar (10) lies below the recess (12). If the rotor (3) is secure, its recess (12) is aligned with the collar (10).
  • the ignition device When the ignition device is installed in a warhead, its support base (1) is placed on a corresponding surface of the warhead.
  • the installation securing element (5) is pushed into the ignition device against the force of the spring (11) via the locking extension (9).
  • the collar (10) slides into the recess (12).
  • the locking extension (9) therefore does not hinder the installation of the ignition device.
  • the collar (10) lies at the level of the annular groove (13). If the rotor (3) is unlocked later, then it pivots. The federal government (10) hampers this not because the ring groove (13) moves freely with respect to the collar (10).
  • the blocking extension (9) does not move back when the carrier base (1) is placed on the corresponding surface of the warhead. Because the collar (10) then strikes the edge (14) of the rotor (3). Installation of the ignition device is therefore not possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Fuses (AREA)
  • Meat, Egg Or Seafood Products (AREA)

Description

Die Erfindung betrifft eine Sicherungseinrichtung für einen Zünder eines Gefechtskopfes nach dem Oberbegriff des Patentanspruches 1.The invention relates to a safety device for an igniter of a warhead according to the preamble of claim 1.

In dem DE-GM 81 19 466.8 ist bereits eine Zündeinrichtung beschrieben, die in einen Gefechtskopf eingebaut ist. Unter Berücksichtigung strenger Sicherheitsanforderungen ist es nicht gänzlich auszuschließen, daß der Rotor dieser bekannten Zündeinrichtung schon vor deren Einbau in den Gefechtskopf nicht mehr in Sicherstellung steht, sondern bereits in seine Scharfstellung übergegangen ist.DE-GM 81 19 466.8 has already described an ignition device which is installed in a warhead. Taking into account strict safety requirements, it cannot be completely ruled out that the rotor of this known ignition device is no longer in a safe state even before it is installed in the warhead, but has already passed into focus.

Aus der DE-A-30 15 424 A1 ist eine Sicherungsvorrichtung gemäß dem Oberbegriff des Anspruches 1 für Zünder von drallosen oder drallarmen Geschossen bekannt, die einen Rotor mit Randausnehmen aufweist, in die eine zweiarmige und unter der Kraft einer Feder stehende Klinke in Sicherstellung des Zünders eingreift. Die um eine Drehachse schwenkbare Klinke steht ferner mit einem Rückschießbolzensystem in Verbindung und bildet zusammen mit der Rückstellfeder und dem Rückschießbolzenzystem zusätzlich eine Sicherheitseinrichtung bei fehlerhafter Montage.From DE-A-30 15 424 A1, a safety device according to the preamble of claim 1 for detonators of swirl-less or low-swirl projectiles is known, which has a rotor with edge recesses into which a two-armed pawl under the force of a spring ensures the Igniter intervenes. The pawl, which can be pivoted about an axis of rotation, is also connected to a recoil pin system and, together with the return spring and the recoil pin system, additionally forms a safety device in the event of incorrect assembly.

Es ist Aufgabe der Erfindung, eine Sicherungseinrichtung der eingangs genannten Art zu schaffen, durch welche der Einbau der Zündeinrichtung durch mechanische Mittel dann ausgeschlossen wird, wenn der Rotor vor dem Einbau in Scharfstellung steht. Dabei sollen diese mechanische Mittel jedoch nicht verhindern, daß bei eingebauter Zündeinrichtung der Rotor aus seiner Sicherstellung in die Scharfstellung übergehen kann.It is an object of the invention to provide a safety device of the type mentioned at the outset by which the installation of the ignition device by mechanical means is ruled out when the rotor is in focus before installation. However, these mechanical means are not intended to prevent the rotor from moving from its securing to the armed position when the ignition device is installed.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale von Patentanspruch 1 gelöst. Ausgestaltungen der Erfindung sind in den Patentansprüchen 2 und 3 beschrieben.This object is achieved by the characterizing features of claim 1. Embodiments of the invention are described in claims 2 and 3.

Das eingesetzte Einbausicherungsglied bewirkt, daß in seiner einen Stellung (Sperrstellung) die einbaurichtung Zuordnung der Zündeinrichtung zur Munition verhindert und daß in seiner anderen Stellung (Einbaustellung) diese Zuordnung erlaubt wird. Durch die Koppelstelle zwischen dem Rotor und dem Einbausicherungsglied blokkiert der in Scharfstellung stehende Rotor das Einbausicherungsglied in Sperrstellung. In der Sicherstellung des Rotors wird das Einbausicherungsglied zum Übergang in die Einbaustellung freigegeben. Mit dieser Sicherungseinrichtung wird zwangsweise erreicht, daß eine Zündeinrichtung mit in Scharfstellung stehendem Rotor nicht in die Munition eingebaut werden kann. Nur wenn der Rotor in Sicherstellung steht, läßt sich die Zündeinrichtung an einem Gefechtskopf befestigen.The built-in securing element has the effect that in its one position (blocking position) the assignment of the ignition device to the ammunition is prevented and that in its other position (installation position) this assignment is permitted. Due to the coupling point between the rotor and the built-in securing element, the rotor, which is in the armed position, blocks the installed securing element in the blocking position. In securing the rotor, the built-in securing element is released for the transition to the installed position. With this safety device it is forcibly achieved that an ignition device with the rotor in focus cannot be installed in the ammunition. The ignition device can only be attached to a warhead when the rotor is in the safe position.

Günstig ist es auch, daß an der Zündeinrichtung schon vor dem Einnau geprüft werden kann, ob der Rotor in Sicherstellung steht. Es ist heirfür das Einbausicherungsglied manuell zu betätigen. Ist dieses Sicherungsglied blockiert, dann muß der Rotor zunächst in die Sicherstellung gestellt werden.It is also favorable that it can be checked on the ignition device before the installation whether the rotor is in a safe position. For this, the built-in safety link must be operated manually. If this securing element is blocked, the rotor must first be placed in the securing position.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der folgenden Beschreibung eines Ausführungsbeispiels. In der Zeichnung zeigen:

  • Figure 1 einen Teilschnitt einer Zündeinrichtung längs der Linie I-I nach Figur 2,
  • Figure 2 einen Schnitt längs der Linie 11-11 nach Figur 1 und
  • Figur 3 eine Ansicht des Rotors in Richtung des Pfeiles 111 in Figur 2.
Advantageous refinements of the invention result from the subclaims and the following description of an exemplary embodiment. The drawing shows:
  • 1 shows a partial section of an ignition device along the line II in FIG. 2,
  • Figure 2 is a section along the line 11-11 of Figure 1 and
  • 3 shows a view of the rotor in the direction of arrow 111 in FIG. 2.

Eine Zündeinrichtung weist einen Trägerboden (1) auf. An diesem ist ein um eine Achse (2) drehbarer Rotor (3) gelagert. Der Rotor (3) weist eine Bohrung (4) auf. Diese liegt bei der in Figur 2 dargestellten Sicherstellung des Rotors (3) außerhalb der nicht näher dargestellten Zündkette der Zündeinrichtung. Der Rotor (3) ist in seiner Sicherstellung mit bekannten Sicherungsmitteln gehalten. Bei Freigabe der Sicherungsmittel schwenkt der Rotor (3) in Richtung des Pfeiles (P) (vgl. Figure 2), bis die Bohrung (4) in der Linie der Zündkette der Zündeinrichtung steht.An ignition device has a carrier base (1). A rotor (3) rotatable about an axis (2) is mounted on this. The rotor (3) has a bore (4). When the rotor (3) is secured in FIG. 2, this lies outside the ignition chain of the ignition device, which is not shown in detail. The rotor (3) is secured with known securing means. When the securing means are released, the rotor (3) swivels in the direction of the arrow (P) (see Figure 2) until the bore (4) is in line with the ignition chain of the ignition device.

Am Trägerboden (1) ist ein von einem Stift gebildetes Einbausicherungsglied (5) angeordnet. Das Einbausicherungsglied (5) ist einerseits an einer in den Trägerboden (1) eingeschraubten Buchse (6) und andererseits an einer Lagerplatte (7) geführt, die über einen Bolzen (8) mit dem Trägerboden (1) verbunden ist.A built-in securing element (5) formed by a pin is arranged on the carrier base (1). The built-in securing element (5) is guided on the one hand on a bushing (6) screwed into the support base (1) and on the other hand on a bearing plate (7) which is connected to the support base (1) by a bolt (8).

Das Einbausicherungslied (5) ist parallel zur Achse (2) verschieblich. Es weist einen Sperrfortsatz (9) und einen Bund (10) auf. Eine Druckfeder (11) drückt das Einbausicherungsglied (5) so, daß sein Sperrfortsatz (9) den Trägerboden (1) überragt (Figur 1).The built-in securing element (5) can be moved parallel to the axis (2). It has a locking extension (9) and a collar (10). A compression spring (11) presses the built-in securing element (5) so that its locking extension (9) projects beyond the support base (1) (FIG. 1).

An dem Außenumfang des Rotors (3) ist eine teilkreisförmige Ausnehmung (12) vorgesehen. Diese geht in eine sich am Umfang des Rotors (3) erstreckende Ringnut (13) über. Die Ausnehmung (12) und die Ringnut (13) des Rotors (3) einerseits und der Bund (10) des Einbausicherungsglieds (5) andererseits bilden eine Koppelstelle zwischen diesen beiden Teilen.A part-circular recess (12) is provided on the outer circumference of the rotor (3). This merges into an annular groove (13) extending on the circumference of the rotor (3). The recess (12) and the annular groove (13) of the rotor (3) on the one hand and the collar (10) of the built-in securing element (5) on the other hand form a coupling point between these two parts.

In der in Figur 1 dargestellten Stellung des Einbausicherungsgliedes (5) liegt der Bund (10) unterhalb der Ausnehmung (12). Steht der Rotor (3) in Sicherstellung, dann fluchtet dessen Ausnehmung (12) mit dem Bund (10).In the position of the built-in securing element (5) shown in FIG. 1, the collar (10) lies below the recess (12). If the rotor (3) is secure, its recess (12) is aligned with the collar (10).

Bei Einbau der Zündeinrichtung in einen Gefechtskopf wird sie mit ihrem Trägerboden (1) auf eine entsprechende Fläche des Gefechtkopfes aufgesetzt. Im Regelfall, wenn der Rotor (3) in Sicherstellung steht, wird dadurch über den Sperrfortsatz (9) das Einbausicherungsglied (5) gegen die Kraft der Feder (11) in die Zündeinrichtung geschoben. Der Bund (10) schiebt sich dabei in die Ausnehmung (12). Der Sperrfortsatz (9) behindert also den Einbau der Zündeinrichtung nicht.When the ignition device is installed in a warhead, its support base (1) is placed on a corresponding surface of the warhead. As a rule, when the rotor (3) is in the safe position, the installation securing element (5) is pushed into the ignition device against the force of the spring (11) via the locking extension (9). The collar (10) slides into the recess (12). The locking extension (9) therefore does not hinder the installation of the ignition device.

Bei eingebauter Zündeinrichtung liegt der Bund (10) in Höhe der Ringnut (13). Wird dann später der Rotor (3) entsichert, dann schwenkt er ein Scharfstellung. Der Bund (10) behindert dies nicht, da sich die Ringnut (13) frei gegenüber dem Bund (10) bewegt.When the ignition device is installed, the collar (10) lies at the level of the annular groove (13). If the rotor (3) is unlocked later, then it pivots. The federal government (10) hampers this not because the ring groove (13) moves freely with respect to the collar (10).

Steht der Rotor (3) in Scharfstellung, wenn die Zündeinrichtung eingebaut werden soll, dann schiebt sich der Sperrfortsatz (9) nicht zurück, wenn der Trägerboden (1) auf die entsprechende Fläche des Gefechtskopf aufgesetzt wird. Denn der Bund (10) schlägt dann an dem Rand (14) des Rotors (3) an. Ein Einbau der Zündeinrichtung ist damit nicht möglich.If the rotor (3) is in focus when the ignition device is to be installed, then the blocking extension (9) does not move back when the carrier base (1) is placed on the corresponding surface of the warhead. Because the collar (10) then strikes the edge (14) of the rotor (3). Installation of the ignition device is therefore not possible.

Claims (3)

1. A safety device for a fuze or a warhead, with a rotor (3) which has at the outer periphery recesses (12, 13) which in the safe position of the fuze communicate with a spring loaded safety member (5), characterised in that the safety member (5) as built-in safety device of the fuze is an axially displaceable pin (5) with a blocking extension (9) at its one front end, which projects in a spring-loaded manner beyond a carrier base (5) of the detonation device, in which respect the safety member (5) has a collar (10) which is the armed position of the rotor (3) strikes axially under an edge (14) of the rotor (3) and in the safe position of the rotor (3) is axially displaceable against spring force as far as into an edge recess (12, 13).
2. A safety device according to Claim 1, characterised in that the safety member (5) is axially displaceable parallel to the axis of rotation (2) of the rotor (3).
3. A safety device according to Claim 1, characterised in that the recess (12) encompasses a partial circle of the rotor (3) and is open towards the collar (10) and merges axially into a ring groove (13) which is freely movable relative to the collar (10).
EP87114311A 1986-10-15 1987-10-01 Safety device for the fuse of a war head Expired - Lifetime EP0267407B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863635084 DE3635084A1 (en) 1986-10-15 1986-10-15 IGNITION DEVICE
DE3635084 1986-10-15

Publications (2)

Publication Number Publication Date
EP0267407A1 EP0267407A1 (en) 1988-05-18
EP0267407B1 true EP0267407B1 (en) 1991-01-16

Family

ID=6311771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114311A Expired - Lifetime EP0267407B1 (en) 1986-10-15 1987-10-01 Safety device for the fuse of a war head

Country Status (5)

Country Link
US (1) US4790246A (en)
EP (1) EP0267407B1 (en)
DE (2) DE3635084A1 (en)
DK (1) DK163746C (en)
NO (1) NO166057C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO891579L (en) * 1988-05-16 1989-11-17 Oerlikon Buehrle Ag BLIND WIRE INSERT FOR A PROJECT LIGHTER.
US5052303A (en) * 1990-04-30 1991-10-01 Motorola, Inc. Interlocked release mechanism with timed, sequential release steps

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763785A (en) * 1972-03-20 1973-10-09 Us Navy Mal-assembly feature for explosive train fuzes
US3973501A (en) * 1973-01-11 1976-08-10 The United States Of America As Represented By The Secretary Of The Navy Fuze with dual safe positions and armed-safe indicator
CH600294A5 (en) * 1976-04-06 1978-06-15 Mefina Sa
DE2640782C3 (en) * 1976-09-10 1979-09-06 Gebrueder Junghans Gmbh, 7230 Schramberg Safety device on detonators
DE3015424A1 (en) * 1980-04-22 1981-10-29 Diehl GmbH & Co, 8500 Nürnberg Spin-less missile fuse safety device - has rotor recesses for recoil bolts and spring-loaded double-armed catch
DE3107110C2 (en) * 1981-02-26 1984-03-29 Gebrüder Junghans GmbH, 7230 Schramberg Safety device for detonators of twist projectiles
DE8119466U1 (en) * 1981-07-03 1982-09-16 Diehl GmbH & Co, 8500 Nürnberg SECURITY DEVICE FOR FLOOR LITER
FR2543288B1 (en) * 1983-03-23 1987-07-17 Luchaire Sa ROCKET BUMPER

Also Published As

Publication number Publication date
DE3767444D1 (en) 1991-02-21
DK535187D0 (en) 1987-10-13
NO873779D0 (en) 1987-09-10
NO166057B (en) 1991-02-11
US4790246A (en) 1988-12-13
DK163746B (en) 1992-03-30
NO873779L (en) 1988-04-18
DE3635084A1 (en) 1988-04-21
NO166057C (en) 1991-05-22
EP0267407A1 (en) 1988-05-18
DK535187A (en) 1988-04-16
DK163746C (en) 1992-08-31

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