EP0104138A2 - Dispositif pour armer et neutraliser une fusée électrique pour munition - Google Patents

Dispositif pour armer et neutraliser une fusée électrique pour munition Download PDF

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Publication number
EP0104138A2
EP0104138A2 EP83810356A EP83810356A EP0104138A2 EP 0104138 A2 EP0104138 A2 EP 0104138A2 EP 83810356 A EP83810356 A EP 83810356A EP 83810356 A EP83810356 A EP 83810356A EP 0104138 A2 EP0104138 A2 EP 0104138A2
Authority
EP
European Patent Office
Prior art keywords
squib
groove
spring
rotor
acceleration
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
EP83810356A
Other languages
German (de)
English (en)
Other versions
EP0104138B1 (fr
EP0104138A3 (en
Inventor
Robert Rehmann
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.)
Inventa AG fuer Forschung und Patentverwertung
Uhde Inventa Fischer AG
Original Assignee
EMS Inventa AG
Inventa AG fuer Forschung und Patentverwertung
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 EMS Inventa AG, Inventa AG fuer Forschung und Patentverwertung filed Critical EMS Inventa AG
Priority to AT83810356T priority Critical patent/ATE23222T1/de
Publication of EP0104138A2 publication Critical patent/EP0104138A2/fr
Publication of EP0104138A3 publication Critical patent/EP0104138A3/de
Application granted granted Critical
Publication of EP0104138B1 publication Critical patent/EP0104138B1/fr
Expired 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
    • F42C15/24—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia 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
    • F42C15/188—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
    • F42C15/192—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 rotatable in a plane which is parallel to the longitudinal axis of the projectile

Definitions

  • the present invention relates to a device for securing and sharpening an electrically ignitable ammunition body, with a squib installed in a squib, the squib carrier being secured by the inertial action of masses and being delayed by a mechanical inhibitor into the focus position.
  • An initial fuse fuse (DE-OS 1 912 750) of an igniter with a rotor with radial bores and a disk with radial slots (springs, tongues with a wedge effect) is known. This combination of safeguards ensures that minor bumps during transport do not cause unwanted firing and that the detonator is only unlocked in the area of about 7 m to 15 m from the muzzle of the gun barrel.
  • This known initial fuse fuse does not meet today's safety requirements, in particular the fuse is armored at a safety distance that is too short from the gun.
  • a bolt which is longitudinally and partially transversely movable in a bore is arranged at least approximately in the line of the direction of the main acceleration of the ammunition body, that the bolt is loaded by a spring at least on one end face in the direction of the main acceleration and engages in a groove located in a part of the circumference of the squib support with a projection flange provided on the second end face.
  • the device according to claim 2 is characterized by its simplicity and economy.
  • the embodiment according to claim 3 prevents the bolt from blocking even in the case of transverse accelerations which act on the ammunition body.
  • the solution shown in claim 4 is used for additional centering and guidance of the bolt, which is particularly advantageous in the case of an unstable flight of the ammunition body.
  • the device according to claim 5 ensures a defined support of the bolt and is therefore of great mechanical stability.
  • the embodiment according to claim 7 is used in particular to supplement previous slider-like squib carriers with a retardation lock.
  • a relatively long groove according to claim 8 allows a correspondingly long monitoring of the rotation of the rotor.
  • the solution according to claim 9 prevents a jerky breakaway at the beginning of the rotary movement of the rotor and brings about a high degree of operational safety even in the case of the necessary, premature locking.
  • a groove designed according to claim 10 prevents further rotation of the rotor, even with high mechanical shock loads.
  • a spring drive has proven to be particularly simple and reliable for moving the squib support into the armed position, see claim 11.
  • the inhibitor described in claim 12 allows a simple, system-dependent setting of the desired front pipe security.
  • the double mass lock described in claim 13 serves primarily to secure the transport and ensures safe unlocking in the direction of its main acceleration fired ammunition; it can also be coordinated with regard to the minimum acceleration values required for secure unlocking.
  • a variant executed according to claim 14 is particularly easy to manufacture in terms of manufacturing technology.
  • the embodiment according to claim 15 is advantageous in the cases in which the retardation lock has to work with a slide over a wide acceleration range.
  • An embodiment according to claim 17 improves the functional reliability even with large changes in the lateral acceleration.
  • Fig. 1 shows a double, mechanically secured device in an electrically ignitable ammunition body M, which often occurs in its kind in projectiles, missiles, etc., ie in ammunition to be fired at high accelerations.
  • 1, 1 denotes a conical bore 1 in a housing 7.
  • a threaded ring 1a closes the bore 1 and at the same time centers a spring 8 which acts on a likewise conical bolt 2 with an end flange 3.
  • the bore 1 has a cylindrical part 4 in addition to its conical part.
  • a squib 6 which is designed as a rotor with a pivot point D.
  • the squib support 6 has a groove 5 on part of its circumference, which has an outgoing part 5a on one end side and an end face 5b on its other end side.
  • a squib 9 known per se, from which an insulated pin 10 protrudes.
  • the outer sleeve of the squib 9 is connected to the ground via the bore 11 of the metallic squib support 6;
  • the pole pin 10 protrudes into the tapered bore 12 of the squib support 6 in an electrically insulated manner.
  • an electrical energy generator 13 known per se, consisting of an ignition generator with a safety and storage scarf device and target sensor.
  • the energy generator 13 has a telescopic contact 14, which rests with its contact surface 15 on the squib support 6.
  • the right-angled coordinate system shown in FIG. 1 a shows the direction of the main acceleration b N of the ammunition body M in the positive part of the abscissa.
  • the ammunition body M is in this acceleration range when it is fired. After leaving the tube or its runway, the ammunition body M experiences a flow resistance, so that after a certain flight duration the positive acceleration values, which were continuously increasing before, become relatively negative values, ie for retardation. This area is designated by -b N.
  • an ammunition body experiences different angular positions on its ballistic trajectory, which result in components of its lateral accelerations b Q (positive and negative).
  • the squib 6 initially locked by a double mass lock, is unlocked in a first step and learns from its starting position, FIG. 1, about the pivot point D a clockwise rotation.
  • the acceleration forces, which unlock the double mass lock also act on the conical bolt 2, whereby this is pressed due to its inert mass in the direction of the threaded ring 1a and thus is pulled out with its projection flange 3 from the groove 5 in the manner shown in Fig. 2.
  • This enables the squib Carrier 6 in the predetermined time a rotation of 270 °, whereby the armored state shown in Fig. 2 occurs.
  • the telescopic contact 14 of the energy generator 13 is spring-loaded into the bore 12 of the squib support 6 and contacts the pole pin 10, as a result of which the circuit is closed when the target sensor (impact contact, etc.) is closed and the ignition charge provided with an electrically conductive glow plug is ignited.
  • the shock wave generated in the squib 9 causes a detonation transmission at the initiation point 17 of the booster charge 16.
  • FIG. 4 shows a balance 18, which is surrounded by four balls 19, in a vertical sectional view.
  • the balls 19 are concentric to the cylindrical balance 18 by a ball ring 20 and a clamping ring 21 guided.
  • a mounting pin 22 serves as a hold-down device for this arrangement which represents an inhibitor.
  • a so-called closing piston 24 of a double mass lock can also be seen, which is guided into a large bore 27 which opens into the housing 7.
  • a conical rotation 25 facilitates the partial sliding of the closing piston 24 from the squib support 6 into the housing 7.
  • Another small bore 28 serves to exchange air in the bore 27 of the squib support 6 and limits its sliding path on one side.
  • the closing piston 24 has indentations into which the balls 42 of the double mass lock shown in FIGS. 9 and 10 engage.
  • the central end of a reinforcement spring 29 engages in a peg-like part 32 (see FIG. 6) of the squib support 6 which has a slot 33 and which can cause the previously described rotation of the squib support 6.
  • FIG. 5 - a view of the object of FIG. 4 from above - the design of the escapement with the balance 18 can be seen again.
  • a stop pin 30 can be seen here, which acts on its cam-like stop 31 to limit the rotational path of the squib support 6.
  • the squib support 6 (rotor) shown in FIG. 6 is guided and centered in the housing 7, FIG. 4 through its cylindrical portions 36 and has the cam-like stop 31 on one end face and a pin 32 on its lower end face.
  • the pin 32 is provided with a slot 33 into which the central end shown in Fig. 8 29a of the reinforcement spring 29 engages.
  • the reinforcement spring 29 shown in FIG. 8 and already mentioned is a clockwork spring which, in the housing 7, cf. Fig. 4, is hooked with its outer end 29b in the wound state.
  • FIG. 9 shows the locking pins 38, 39 consisting of the masses 1 and 2, together with the central closing piston 24 in the locked state.
  • the conical projection 25 and the tips 38 ', 39' of the locking pins 38 and 39 engage in the bores 27 and 27 "in the housing 7.
  • the locking pins 38 and 39 provided with identical masses are 38 ", 39" at their ends by likewise identical springs 40 and 41 with the same spring constants in the ge drawn position pressed.
  • the resulting rotary movement is braked by the escapement with its balance 18, FIGS. 4 and 5, in that the balls 19 are pressed alternately into opposite recesses in the spherical ring 20 by the balance 18, which carries out an oscillating movement.
  • a predetermined delayed rotary movement of the squib support 6 can thus be realized, in accordance with the required precoil security.
  • the delay times required in practice range from a few milliseconds to several seconds, depending on the type of ammunition and the design of the escapement.
  • the retar now controls physically irrespective of the rotary movement of the squib support 6 that has been initiated dation lock according to FIGS. 1 to 3, the rotary movement in relation to an acceleration behavior of the ammunition body contrary to the system.
  • the conical configuration of the bore 1, cf. Fig. 1, and the rotationally symmetrical conical bolt 2 prevent unwanted sticking of the bolt due to the selected cone angle in the range of 10 ° to 30 °, preferably 15 °.
  • the retardation effect can also be predetermined within wide limits.
  • This diagram shows that a floor can be safely reinforced and checked even under extreme acceleration conditions if the necessary absolute values are reached.
  • slide-shaped squib carriers according to the invention can also be equipped in an analogous manner with a retardation lock, as shown in FIGS. 13 and 14 in a simplified form.
  • the axis of symmetry S is identical to the direction of the main acceleration b N.
  • a slider-like squib support 6 ' is arranged at an angle of 90 ° to the axis of symmetry S.
  • a primer 9 with a pole pin 10
  • a keyway-like groove 5 'and a blind hole 43 In this hole, a reinforcement spring 29' (tension spring) is suspended at the end, which is also attached to a housing 7 'is attached.
  • the energy generator 13 In the axis of symmetry S, on the front side in the ammunition body M, is the energy generator 13 with its telescope contact 14 'resting on the squib support 6'. On the side opposite the power generator, the booster charge 16 'is at a small distance from the squib holder 6'.
  • the inhibitor mechanism H acting on the long side of the squib carrier is symbolized by an arrow.
  • the projection flange 3 can likewise prevent the detonator from being focused in good time in a known manner on the end face 5b '.
  • the device according to FIG. 14 is constructed analogously to that according to claim 13, only to reduce the space requirement here the bolt 2 is arranged at an angle alpha to the axis of symmetry S of the ammunition body M and thus to the direction of the main acceleration b N.
  • the squib 9 is inclined, i.e. axially parallel to the axis of symmetry S, installed in the squib support 6 ".
  • the projection flange 3 'of the bolt 2 is designed like a pawl;
  • the optimal choice of the angle alpha i.e. the installation position of the retardation lock can be optimized in a simple manner with the aid of the diagram in FIG. 12 and the dynamic flight behavior of the ammunition body M.
  • the device according to the invention ensures a high level of security even in cases where the ammunition holding (projectiles and missiles with boosters etc.) has relatively high lateral accelerations. It is also characterized by its simplicity, small size and the possibility of integrating it into existing or newly designed ignition systems.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP83810356A 1982-09-16 1983-08-12 Dispositif pour armer et neutraliser une fusée électrique pour munition Expired EP0104138B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810356T ATE23222T1 (de) 1982-09-16 1983-08-12 Vorrichtung zum sichern und schaerfen eines elektrisch zuendbaren munitionskoerpers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5481/82 1982-09-16
CH548182 1982-09-16

Publications (3)

Publication Number Publication Date
EP0104138A2 true EP0104138A2 (fr) 1984-03-28
EP0104138A3 EP0104138A3 (en) 1984-09-12
EP0104138B1 EP0104138B1 (fr) 1986-10-29

Family

ID=4294311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810356A Expired EP0104138B1 (fr) 1982-09-16 1983-08-12 Dispositif pour armer et neutraliser une fusée électrique pour munition

Country Status (4)

Country Link
US (1) US4550661A (fr)
EP (1) EP0104138B1 (fr)
AT (1) ATE23222T1 (fr)
DE (1) DE3367274D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1066786A1 (fr) 1999-07-05 2001-01-10 Cws International Ag Dispositif de déclenchement d'un processus dépendant d'un déplacement et son utilisation
EP1167914A1 (fr) 2000-06-19 2002-01-02 SM Schweizerische Munitionsunternehmung AG Projectile autopropulsé avec noyau perforant
WO2004089660A2 (fr) 2003-04-03 2004-10-21 Hendrickson International Corporation Coussin superieur d'ensemble serrage sur essieu et ensemble fixation de ressort pneumatique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3435402A1 (de) * 1984-09-27 1986-04-03 Gebrüder Junghans GmbH, 7230 Schramberg Kugelfoermiger sicherungsrotor eines drallgeschosszuenders
CH678107A5 (fr) * 1988-12-12 1991-07-31 Inventa Ag
US5269223A (en) * 1992-10-06 1993-12-14 Ems-Patvag Piezoelectric fuse system with safe and arm device for ammunition
DE10302967B4 (de) * 2003-01-25 2006-04-06 Junghans Feinwerktechnik Gmbh & Co. Kg Geschosszünder mit einem Kraftelement

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118062A (en) * 1937-09-21 1938-05-24 David L Woodberry Bore-safe fuse
CH210217A (fr) * 1939-03-29 1940-06-30 Leon Breitling Willy Fusée pour projectile.
FR1046924A (fr) * 1951-11-15 1953-12-09 Soc Tech De Rech Ind Fusée pour amorçage de projectiles
US2709962A (en) * 1952-05-09 1955-06-07 Jr Walter Funk Mortar fuse
FR1311002A (fr) * 1961-02-23 1962-11-30 Borletti Spa Fusée à percussion pour projectiles non-tournants
US3375786A (en) * 1965-10-25 1968-04-02 Bombrini Parodi Delfino S P A Mechanical percussion fuze for rockets
DE1912750A1 (de) * 1969-03-13 1970-10-01 Foersvarets Fabriksverk Zuender mit Initialzuendersicherung,enthaltend einen Rotor
EP0048204A1 (fr) * 1980-09-12 1982-03-24 Societe E. Lacroix - Tous Artifices Cartouche à actionnement pyrotechnique de charge utile avec sécurité
DE3144996A1 (de) * 1981-11-12 1983-05-19 Inventa AG für Forschung und Patentverwertung Zürich, 8006 Zürich Verriegelungsvorrichtung fuer munition

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1116578B (de) * 1958-01-23 1961-11-02 E H Helmut Junghans Dr Ing Aufschlagzuender fuer drallose Geschosse
US3117522A (en) * 1960-11-30 1964-01-14 Frank C Hutchison Set-back device for fuze
FR1528313A (fr) * 1967-05-25 1968-06-07 Forsvarets Fabriksverk Dispositif de retard à la mise à feu, notamment pour fusées de projectiles, ainsique fusée de projectile ou projectile équipé de ce dispositif
US3956991A (en) * 1968-10-03 1976-05-18 The United States Of America As Represented By The Secretary Of The Navy Optical, semi-active bomblet fuze
US3921531A (en) * 1974-05-10 1975-11-25 Us Army Double element setback lock
US3958511A (en) * 1974-06-11 1976-05-25 The United States Of America As Represented By The Secretary Of The Army Setback lock apparatus
SE395764B (sv) * 1975-03-07 1977-08-22 Foerenade Fabriksverken Granat med riktad sprengverkan och for denna avsett pansarvernsvapen
DE2643828C3 (de) * 1976-09-29 1980-09-11 Gebrueder Junghans Gmbh, 7230 Schramberg Zünder für drallarm zu verschießende Geschosse

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118062A (en) * 1937-09-21 1938-05-24 David L Woodberry Bore-safe fuse
CH210217A (fr) * 1939-03-29 1940-06-30 Leon Breitling Willy Fusée pour projectile.
FR1046924A (fr) * 1951-11-15 1953-12-09 Soc Tech De Rech Ind Fusée pour amorçage de projectiles
US2709962A (en) * 1952-05-09 1955-06-07 Jr Walter Funk Mortar fuse
FR1311002A (fr) * 1961-02-23 1962-11-30 Borletti Spa Fusée à percussion pour projectiles non-tournants
US3375786A (en) * 1965-10-25 1968-04-02 Bombrini Parodi Delfino S P A Mechanical percussion fuze for rockets
DE1912750A1 (de) * 1969-03-13 1970-10-01 Foersvarets Fabriksverk Zuender mit Initialzuendersicherung,enthaltend einen Rotor
EP0048204A1 (fr) * 1980-09-12 1982-03-24 Societe E. Lacroix - Tous Artifices Cartouche à actionnement pyrotechnique de charge utile avec sécurité
DE3144996A1 (de) * 1981-11-12 1983-05-19 Inventa AG für Forschung und Patentverwertung Zürich, 8006 Zürich Verriegelungsvorrichtung fuer munition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1066786A1 (fr) 1999-07-05 2001-01-10 Cws International Ag Dispositif de déclenchement d'un processus dépendant d'un déplacement et son utilisation
EP1167914A1 (fr) 2000-06-19 2002-01-02 SM Schweizerische Munitionsunternehmung AG Projectile autopropulsé avec noyau perforant
WO2004089660A2 (fr) 2003-04-03 2004-10-21 Hendrickson International Corporation Coussin superieur d'ensemble serrage sur essieu et ensemble fixation de ressort pneumatique

Also Published As

Publication number Publication date
US4550661A (en) 1985-11-05
EP0104138B1 (fr) 1986-10-29
ATE23222T1 (de) 1986-11-15
EP0104138A3 (en) 1984-09-12
DE3367274D1 (en) 1986-12-04

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