EP1736729B1 - Sicherungseinrichtung für einen Drallgeschosszünder - Google Patents

Sicherungseinrichtung für einen Drallgeschosszünder Download PDF

Info

Publication number: EP1736729B1
Authority: EP; European Patent Office
Prior art keywords: rotor; safety; acceleration; ring; arming unit
Prior art date: 2005-06-24
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.): Not-in-force

Application number

EP06012356A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP1736729A1 (de

Inventor

Alexander Zinell

Frank Kienzler

Martin Leonhardt

Roland Ketterer

Günter Westphal

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.)

Junghans Microtec GmbH

Original Assignee

Junghans Microtec 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.)

2005-06-24

Filing date

2006-06-16

Publication date

2008-10-22

2006-06-16 Application filed by Junghans Microtec GmbH filed Critical Junghans Microtec GmbH

2006-12-27 Publication of EP1736729A1 publication Critical patent/EP1736729A1/de

2008-10-22 Application granted granted Critical

2008-10-22 Publication of EP1736729B1 publication Critical patent/EP1736729B1/de

Status Not-in-force legal-status Critical Current

2026-06-16 Anticipated expiration legal-status Critical

Links

Images

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
- 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
- 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
- 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
- F42C15/26—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 using centrifugal force

Definitions

the invention relates to a safety device for a twisted round igniter.
a safety device for a Vortex projectile igniter is for example in the EP 0 360 187 B1 described.
a retaining ring is formed with a keyway having radially inwardly oriented support tabs and between these recesses.
the support tabs and the recesses have approximately the same size footprint dimensions. This has an effect on the swirl-ie centrifugal force-related spreading behavior of the retaining ring.
This known safety device also has a spring device which is formed by a conical spiral compression spring.
the US 4,004,521 A shows a securing device for a Vortex projectile igniter with an igniter body and a bearing body, which define between them a spherical cavity in which a spherical rotor, in which a detonator is provided, is rotatably mounted.
the rotor is surrounded by a C-shaped spring, which prevents the rotor by means of the bearing body and a force acting on the bearing body coil spring from rotating in the assurance of the securing device.
the rotor moves together with the bearing body away from a piercing needle engaging in the rotor.
With increasing rate of rotation of the projectile in which the securing device is provided there is also a spreading of the C-shaped spring.
the invention has for its object to provide a safety device of the type mentioned for a Vortex projectile igniter, especially for a medium-caliber weapon system, which is suitable for relatively high piecing and Zuclassbebuilditch.
the safety device has the advantage that the rotor for the detonator provided in the igniter body is released only when the launch acceleration and the spin-induced rotational acceleration is applied. This means that short-term pulses, such as those that occur in a drop test, are not detected as sufficient for ignition, so that the rotor remains in safety. In particular, extremely high feed and Ansetzbenchept be collected with the inventive securing device in an advantageous manner and not transmitted via the rotor to the internal structure. This leads advantageously to a high functional reliability.
FIG. 1 shows sectionally longitudinally sectioned an embodiment of the securing device 10 for a twisted roundabout igniter.
the safety device 10 has a detonator body 12 drawn in sections and also a bearing body 14, which is also drawn only in sections.
the igniter body 12 and the bearing body 14 are each formed with a hemispherical cavity, so that in the assembled state between the igniter body 12 and the bearing body 14, a spherical cavity 16 results.
a ball-like rotor 18 is rotatably mounted.
a detonator 20 is arranged in the spherical rotor 18.
the ball-like rotor 18 is also formed with a recess 22, in which in.
FIG. 1 shows sectionally longitudinally sectioned an embodiment of the securing device 10 for a twisted roundabout igniter.
the safety device 10 has a detonator body 12 drawn in sections and also a bearing body 14, which is also drawn only in sections.
the ball-like rotor 18 is surrounded by a rotor locking ring 28 which in the securing (see FIG. 1 ) prevents the rotor 18 by means of an acceleration ring 30 and a spring element 32 positively connecting the acceleration ring 30 with the rotor locking ring 28 to a rotation in the armed position.
the rotor locking ring 28 is for rotationally and centrifugally related spreading in a space 34 inside, with a slot 36 (see FIG. 2 ) educated.
the rotor locking ring 28 is formed diametrically opposite the slot 36 with a notch 38. This notch 38 causes a corresponding material weakening 40 of the rotor locking ring 28, whereby the mentioned spreading of the rotor locking ring 28 is facilitated.
FIG. 1 the rotor locking ring 28 in the equatorial connection region 42 between the igniter body 12 and the bearing body 14, due to rotation and centrifugal force spreadable provided.
the rotor securing ring 28 is arranged in a recess 44 which is formed on the end face 46 of the bearing body 14 which adjoins the igniter body 12.
the Recess 44 has the free space 34 for the rotationally and centrifugally spread rotor locking ring 28.
the igniter body 12 is formed with an annular, axially oriented receiving space 48 for the spring element 32 and the accelerating ring 30.
the acceleration ring 30 is axially movably guided along an axially oriented cylindrical guide surface 50 delimiting the receiving space 48 on the inside.
the receiving space 48 is formed with a stepped profile 52.
the stepped profile 52 results in an inside bearing portion 54 for the spring element 32 and an externally axially adjacent guide portion 56 for the acceleration ring 30.
the acceleration ring 30 has an L-shaped cross-sectional profile with a plant leg 58 for the spring element 32 and a holding leg 60th for the rotor locking ring 28.
the accelerator ring 30 may compress the spring member 32.
the positive connection between the acceleration ring 30 and the rotor locking ring 28 is released and the rotor locking ring 28 is released.
this release does not cause any opening of the rotor locking ring, i. no spreading of the same, because no rotation takes place.
the rotor 18 can not rotate so in the axial focus.
FIG. 2 illustrates the rotationally symmetrical design of the safety device and in particular the formation of the rotor locking ring 28 with the slot 36 and the notch 38 and caused by the notch 38 material weakening 40th
FIGS. 3 and 4 illustrate the Entommeswolf the safety device 10.
the triggered spring element 32 is compressed by the accelerating ring 30 at sustained launch acceleration.
the resulting centrifugal force of the rotor locking ring 28 is moved radially outwardly into the space 34, as seen from FIG. 4 clearly seen, and the rotor 18 released.
the spring element 32 relaxes again and moves the acceleration ring 30 again in the direction of securing.
the accelerator ring 30 can not return to the in FIG. 1 move drawn backup back, because he is now blocked by the spread rotor locking ring 28, that comes with his holding leg 60 on the spread rotor locking ring 28 to the plant.
the spring element 32 thus biases over the acceleration ring 30, the rotor locking ring 28 in its position.
the rotor 18 can rotate only in its axial focus when the socket 24 is released via a (not shown) second Entommessystem and moves away from the rotor 18.
FIG. 4 illustrates the deformed, ie spread rotor locking ring 28 which opens due to centrifugal force in a fast rotation and the rotor 18 releases.
FIGS. 5 and 6 illustrate a second embodiment of the securing device 10, wherein the representation of the bearing body 14 has been omitted. Only the cylinder body 12 with its hemispherical recess is illustrated.
the reference numeral 18 is also in the FIGS. 5 and 6 denotes the spherical rotor in which a detonator 20 is arranged.
the rotor 18 has three recesses 62 which are evenly distributed in the circumferential direction and radially oriented.
the respective Recess 62 is in the in the FIGS. 5 and 6 drawn assurance an associated radially oriented transverse pin 64 into it.
the respective transverse pin 64 is guided linearly movable in an associated, formed in the igniter body 12 transverse pin guide hole 66.
each transverse pin 64 is imaged with an axially oriented through hole, which is provided for receiving an axially oriented acceleration pin 70.
a spring element 72 (see FIG. 5 ) connected.
the transverse pins 64 are also each formed with a through hole 74 at its radially outer end portion.
a second spring element 76 which is designed as an annular spring, extends through the through holes 74 of the radially oriented transverse pin 64.
the second spring element 76 is formed in an annular groove 78 of the igniter body 12.
the reference numeral 22 is also in FIG. 5 designates the recess formed in the rotor 18, in which in the securing of the securing device 10 a bushing 24 stands.
At least one transverse pin 64 is provided, or, for example, three transverse pins 64 are provided, depending on the mechanical loads to be expected, in order to be suitable for extremely high feeding and setting accelerations.
the respective spring element 72 holds the associated axially oriented acceleration bolt in the associated acceleration bolt guide hole 68, so that the respective transverse pin 64, fixed in the rotor 18 in a form-fitting manner, is fixed. If a brief acceleration occurs, as occurs, for example, in a drop test, the respective acceleration bolt 70 can compress the associated spring element 72. However, the cross pin 64 remain in the positive locking with the rotor 18, because the second spring element 76 holds the cross pin 64 in the securing.
FIG. 6 illustrates the rotationally symmetrical structure of the securing device 10th
the acceleration bolts 70 compress the associated spring elements 72, so that the radially oriented transverse bolts 64 are released from the acceleration bolts 70.
the radially oriented transverse pins 64 are moved outwards due to centrifugal force.
the transverse pins 64 press the second spring element 76 radially outward, so that the second spring element 76 is moved apart.
the rotor 18 is released.
the radially oriented cross pins. 64 move in the annular groove 78 to the outside and can then rest against an outer housing, not shown.
the transverse pins 64 are still guided, so that they can move back to their original position.
the rotor 18 can rotate only in the axial position, ie in the armed position of the safety device 10 when the socket 24 is released via a not shown second Entommessystem and moves away from the rotor 18.

Landscapes

General Engineering & Computer Science (AREA)
Engineering & Computer Science (AREA)
Toys (AREA)
Air Bags (AREA)
Safety Valves (AREA)
Automotive Seat Belt Assembly (AREA)
Lock And Its Accessories (AREA)
Spinning Or Twisting Of Yarns (AREA)
Ropes Or Cables (AREA)
Fuses (AREA)
Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Joints Allowing Movement (AREA)
Sink And Installation For Waste Water (AREA)

EP06012356A 2005-06-24 2006-06-16 Sicherungseinrichtung für einen Drallgeschosszünder Not-in-force EP1736729B1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102005029326A DE102005029326B4 (de)	2005-06-24	2005-06-24	Sicherungseinrichtung für einen Drallgeschosszünder mit einem kugelartigen Rotor

Publications (2)

Publication Number	Publication Date
EP1736729A1 EP1736729A1 (de)	2006-12-27
EP1736729B1 true EP1736729B1 (de)	2008-10-22

Family

ID=36972903

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06012356A Not-in-force EP1736729B1 (de)	2005-06-24	2006-06-16	Sicherungseinrichtung für einen Drallgeschosszünder

Country Status (6)

Country	Link
US (2)	US7357081B2 (no)
EP (1)	EP1736729B1 (no)
AT (1)	ATE412162T1 (no)
DE (2)	DE102005029326B4 (no)
ES (1)	ES2313506T3 (no)
NO (1)	NO337722B1 (no)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102005029326B4 (de) *	2005-06-24	2007-04-05	Junghans Feinwerktechnik Gmbh & Co. Kg	Sicherungseinrichtung für einen Drallgeschosszünder mit einem kugelartigen Rotor
US8037826B2 (en) *	2006-06-01	2011-10-18	Dse, Inc.	Mechanical self destruct for runaway escapements
DE102006046811A1 (de) *	2006-10-02	2008-04-03	Junghans Microtec Gmbh	Geschosszünder
US7552682B2 (en) *	2006-12-20	2009-06-30	Alliant Techsystems Inc.	Accelerometer mounting for a penetrator and method thereof
US7549374B2 (en) *	2006-12-20	2009-06-23	Alliant Techsystems Inc.	Fuze mounting for a penetrator and method thereof
US8151708B2 (en) *	2008-02-08	2012-04-10	Pacific Scientific Energetic Materials Company	Safe and arm mechanisms and methods for explosive devices
US8061272B2 (en) *	2009-08-17	2011-11-22	Dse, Inc.	Mechanical command to arm fuze
US8291825B2 (en) *	2009-09-10	2012-10-23	Alliant Techsystems Inc.	Methods and apparatuses for electro-mechanical safety and arming of a projectile
US8151709B1 (en) *	2010-04-30	2012-04-10	The United States Of America As Represented By The Secretary Of The Army	Anti-setback spin clip application
US8443728B2 (en) *	2011-09-23	2013-05-21	Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense	Impact fuze for a high-spin self-destructing device
FR3039267B1 (fr) *	2015-07-24	2017-07-14	Nexter Munitions	Dispositif de securite et d'armement pour une fusee d'ogive et fusee comportant un tel dispositif
US12180960B2 (en)	2023-05-15	2024-12-31	Spherical Rotors Inc.	Rotary positive displacement device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2455603A (en) *	1943-04-14	1948-12-07	Nichols Harry James	Fuse
US2960037A (en) *	1952-01-23	1960-11-15	Jr Harry Raech	Safety arming device for explosive missiles
US2707918A (en) *	1954-04-06	1955-05-10	Murray G Clay	Fuse for a military shell
US3397640A (en) *	1966-10-28	1968-08-20	Gen Electric	Fuze with improved time delay and self-destruct mechanism
BE711656A (no)	1967-03-31	1968-07-15
DE2149117A1 (de) *	1967-03-31	1972-04-27	Armes De Guerre Fab Nat	Geschosszuender
US4213395A (en) *	1974-05-15	1980-07-22	Breed David S	Ball rotor safety and arming delay device
US3949675A (en) *	1974-07-03	1976-04-13	The United States Of America As Represented By The Secretary Of The Army	Projectile
US4004521A (en) *	1976-04-01	1977-01-25	The United States Of America As Represented By The Secretary Of The Army	Projectile fuze
US4242963A (en) *	1978-09-25	1981-01-06	General Electric Company	Delayed arming fuze for a spinning projectile
US4982663A (en) *	1986-05-16	1991-01-08	Aai Corporation	Safe-and-arm arrangement and projectile arrangement therewith
DE3831863A1 (de) *	1988-09-20	1990-03-22	Diehl Gmbh & Co	Sicherungseinrichtung fuer einen drallgeschosszuender
US5243912A (en) *	1991-12-09	1993-09-14	General Electric Co.	Arming delay, dual environment safe, fuze
FR2730051B1 (fr)	1995-01-30	1997-03-21	Manurhin Defense	Dispositif de securite et d'armement pour fusee de projectile
US6389976B1 (en) *	2000-05-08	2002-05-21	The United States Of America As Represented By The Secretary Of The Army	Hard target fuze
DE102005029326B4 (de) *	2005-06-24	2007-04-05	Junghans Feinwerktechnik Gmbh & Co. Kg	Sicherungseinrichtung für einen Drallgeschosszünder mit einem kugelartigen Rotor

2005
- 2005-06-24 DE DE102005029326A patent/DE102005029326B4/de not_active Expired - Fee Related
2006
- 2006-05-23 US US11/438,824 patent/US7357081B2/en not_active Expired - Fee Related
- 2006-06-14 NO NO20062786A patent/NO337722B1/no not_active IP Right Cessation
- 2006-06-16 AT AT06012356T patent/ATE412162T1/de active
- 2006-06-16 DE DE502006001869T patent/DE502006001869D1/de active Active
- 2006-06-16 ES ES06012356T patent/ES2313506T3/es active Active
- 2006-06-16 EP EP06012356A patent/EP1736729B1/de not_active Not-in-force
2007
- 2007-10-12 US US11/871,579 patent/US7461596B2/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US20070051266A1 (en)	2007-03-08
NO337722B1 (no)	2016-06-13
ES2313506T3 (es)	2009-03-01
US7357081B2 (en)	2008-04-15
ATE412162T1 (de)	2008-11-15
DE102005029326B4 (de)	2007-04-05
DE502006001869D1 (de)	2008-12-04
DE102005029326A1 (de)	2006-12-28
EP1736729A1 (de)	2006-12-27
US7461596B2 (en)	2008-12-09
NO20062786L (no)	2006-12-27
US20080173203A1 (en)	2008-07-24

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