EP0229302B1 - Poids d'inertie pour fusée de base d'un projectile stabilisé par rotation - Google Patents

Poids d'inertie pour fusée de base d'un projectile stabilisé par rotation Download PDF

Info

Publication number
EP0229302B1
EP0229302B1 EP86117026A EP86117026A EP0229302B1 EP 0229302 B1 EP0229302 B1 EP 0229302B1 EP 86117026 A EP86117026 A EP 86117026A EP 86117026 A EP86117026 A EP 86117026A EP 0229302 B1 EP0229302 B1 EP 0229302B1
Authority
EP
European Patent Office
Prior art keywords
inertia body
projectile
bore
cylindrical part
diameter
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
Application number
EP86117026A
Other languages
German (de)
English (en)
Other versions
EP0229302A1 (fr
Inventor
Hugo Sigrist
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0229302A1 publication Critical patent/EP0229302A1/fr
Application granted granted Critical
Publication of EP0229302B1 publication Critical patent/EP0229302B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C1/00—Impact fuzes, i.e. fuzes actuated only by ammunition impact
    • F42C1/02—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze
    • F42C1/04—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze operating by inertia of members on impact
    • F42C1/06—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze operating by inertia of members on impact for any direction of impact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C1/00—Impact fuzes, i.e. fuzes actuated only by ammunition impact
    • F42C1/02—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze
    • F42C1/04—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze operating by inertia of members on impact

Definitions

  • inertial body which is supported directly on the hammer sleeve when the projectile hits.
  • This inertial body has two cylindrical parts of different diameters, which are connected to one another by a conical surface that widens in the direction of flight of the projectile.
  • the inertial body is located in a bore in the igniter housing, which has two cylindrical parts of different diameters, which are connected to one another by a conical surface that widens in the direction of flight of the projectile.
  • This known ground igniter has a disassembly spring, which causes the projectile to disassemble itself if the target is missed.
  • the hammer sleeve with the firing pin is made as light as possible so that no large mass has to be accelerated during the self-disassembly in order to pierce the primer.
  • the inertial body is designed to be as heavy as possible so that when the target hits the firing pin with the hammer sleeve through the inertia as quickly as possible against the primer.
  • the conical surface on the inertial body or on the housing bore increases the sensitivity of the detonator when it hits the target at a very oblique angle.
  • a disadvantage of this known ground igniter is that the required sensitivity is only guaranteed if the piercing of the squib is supported by the self-disassembly spring by the firing pin.
  • the object which is to be achieved with the present invention is to create a floor igniter in which the required responsiveness is ensured even without a self-disassembling spring, in particular also when the projectile reaches the target with a flat impact angle.
  • this object is achieved in that the inertial body is subdivided into a number of sector-shaped parts which move apart in the radial direction under the action of the swirl and are supported on one of the aforementioned conical surfaces, as a result of which the inertial body under the action of the swirl in in the axial direction against the hammer sleeve.
  • the inertial body is preferably composed of four 90 ° sectors and has a cylindrical part at its rear end, and the bore has a cylindrical portion at its rear end, the diameter of which is the same size as the diameter of the cylindrical part on the inertial body.
  • the inertial body can have a second cylindrical part at its front end and the bore can have a second cylindrical section, the diameter of which is the same size as the diameter of the second cylindrical part of the inertial body, the diameter of the first cylindrical part being smaller than that Diameter of the second cylindrical part.
  • This design of the ground igniter has the advantage that the forces acting on the inertial body due to the swirl are able to improve the responsiveness.
  • FIG. 1 shows all parts of the detonator in their safety position and the right half of FIG. 1 shows these parts of the detonator at the moment a primer is pierced by an ignition pin.
  • the igniter 9 has a front housing part 10 and a rear housing part 11, which are however only indicated incompletely and which are connected to one another in a manner not shown.
  • the front housing part 10 has a cylindrical bore 12 in which there is a spherical or disk-shaped rotor 13.
  • This rotor 13 contains a squib 14 which can be pierced by a firing pin 15.
  • This ignition pin 15 is slidably guided in a bore 16 of a disc 17.
  • the disc 17 is clamped between a shoulder 19 in the front housing part 10 and a sleeve 18 which is supported on a shoulder 20 in the rear housing part 11.
  • the firing pin 15 is fastened to a hammer sleeve 21 which has a shoulder 22 in its central part and has a guide disk 23 at its rear end.
  • the mentioned bushing 18, which is rigidly anchored in the rear housing part 11, has a bottom 24.
  • a retaining spring 25 is supported on the one hand on the floor 24 and on the other hand on the guide disk 23 of the hammer sleeve 21 and strives to push the hammer sleeve 21 backwards, ie to push the firing pin 15 away from the squib 14.
  • Inside the sleeve 18 there are a number of locking bodies 26 which, as shown in the left half of FIG.
  • the soil igniter according to the invention shown in FIG. 3 differs from the soil igniter just described with reference to FIG. 1 by another inertial body 35.
  • This inertial body 35 consists of a front cylindrical part 36, a central frustoconical part 37 and a rear cylindrical part 38 and is divided into four 90 ° sectors 35a, 35b, 35c, and 35d according to FIG.
  • Fig. 3 four different positions of the inertial body 35 are shown. It is in its rearmost position on the left side of FIG. 3 and the inertial body 35 is in its foremost position on the right side of FIG. 3.
  • two intermediate positions are indicated on the right side of FIG. 3, which are designated by 35-1 and 35-11.
  • This inertial body 35 is located in a bore 30 of the igniter housing 10, 11, which is bounded by a rear, cylindrical section 32 of smaller diameter and a front, cylindrical section 33 of larger diameter, which are connected to one another via a conical surface 39. Furthermore, the bore 30 has a tapered shoulder 40 on which the inertial body 35 is supported with its frustoconical part 37 under the action of the swirl.
  • the floor igniter according to the invention shown in FIG. 4 differs from the floor igniter described in FIG. 1 by another inertial body 135.
  • This inertial body 135 consists of a front, slightly conical part 136, a central, frustoconical part 137, a third, slightly conical part 138 and a rear, frustoconical part 141 and is divided into four 90 ° sectors 35a, 35b, 35c and 35d according to FIG. 4 shows four different positions of the inertial body 135. It is in its rearmost position on the left side of FIG. 4 and in its foremost position on the right side of FIG. 3. In addition, two intermediate positions are indicated on the right side of FIG. 4, which are designated 135-1 and 135-11.
  • This inertial body 135 is located in a bore 130 of the igniter housing 10, 11, which is delimited by a rear, slightly conical section 132 of smaller diameter and a front, slightly conical section 133 of larger diameter, which are connected to one another via a conical surface 139 . Furthermore, the bore 130 has a conical shoulder 140, on which the inertial body 135 is supported with its frustoconical part 137 under the action of the swirl.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Air Bags (AREA)
  • Coating By Spraying Or Casting (AREA)

Claims (5)

1. Poids d'inertie (35) pour fusée de base (9) d'un projectile stabilisé par rotation pour augmenter la sensibilité de réponse comportant:
- une pastille amorce (14),
- un percuteur (15) pour percuter la pastille amorce (14),
- une douille de percussion (21) fixé au percuteur (15), le poids d'inertie (35) se trouvant derrière le manchon de percussion (21) et lors de l'impact du projectile sur l'objectif il s'appuie directement sur la douille de percussion (21), pour augmenter par son inertie l'effet de la masse de la douille de percussion (21) lors de la percussion de la pastille amorce (14) par le percuteur (15),
- un perçage (30) réalisé dans le boîtier (11) de la fusée et dans lequel le poids d'inertie (35) peut coulisser axialement et radialement,
- une surface conique (37, 39) allant en s'élargissant dans la direction de la trajectoire du projectile sur le poids d'inertie (35) et/ou sur la paroi-du perçage (30), poids d'inertie caractérisé en ce qu'il (35) est subdivisé en un certain nombre de pièces en forme de secteur (35a, 35b, 35c et 35d) qui sous l'effet de la rotation s'écartent dans la direction radiale et s'appuient ainsi contre l'une des surfaces coniques (37, 39), pour que le poids d'inertie (35), sous l'effet de la rotation, puisse rencontrer dans la direction axiale la douille de percussion.
2. Poids d'inertie (35) selon la revendication 1, caractérisé en ce qu'il se compose de quatre secteurs à 90° (35a-35d).
3. Poids d'inertie (35) selon la revendication 1, caractérisé en ce qu'il comporte à son extrémité arrière une première partie cylindrique (38) et en ce que le perçage (30) à son extrémité arrière présente un premier segment cylindrique (32) dont le diamètre est égal au diamètre de la partie cylindrique (38) du poids d'inertie (35).
4. Poids d'inertie (35) selon la revendication 3, caractérisé en ce qu'à son extrémité avant il comporte une seconde partie cylindrique (36) et en ce que le perçage (30) présente un second segment cylindrique (33) dont le diamètre est égal au diamètre de la seconde partie cylindrique (36) du poids d'inertie (35), le diamètre de la première partie cylindrique (38) étant inférieur au diamètre de la seconde partie cylindrique (36).
5. Poids d'inertie selon la revendication 1, caractérisé en ce qu'il (35) et le perçage (30) présentent deux segments coniques (132,138 et 133,136) avec un angle de cône relativement petit et deux segments coniques (137,139) avec un angle de cône relativement important, et, vu dans la direction de la trajectoire du projectile, il y a un segment à angle relativement faible et un segment à angle relativement important.
EP86117026A 1986-01-14 1986-12-08 Poids d'inertie pour fusée de base d'un projectile stabilisé par rotation Expired EP0229302B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH111/86 1986-01-14
CH11186 1986-01-14
CH3060/86 1986-07-30
CH306086 1986-07-30

Publications (2)

Publication Number Publication Date
EP0229302A1 EP0229302A1 (fr) 1987-07-22
EP0229302B1 true EP0229302B1 (fr) 1989-04-19

Family

ID=25683547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117026A Expired EP0229302B1 (fr) 1986-01-14 1986-12-08 Poids d'inertie pour fusée de base d'un projectile stabilisé par rotation

Country Status (6)

Country Link
US (1) US4723490A (fr)
EP (1) EP0229302B1 (fr)
CA (1) CA1269276A (fr)
DE (1) DE3662946D1 (fr)
IL (1) IL81185A (fr)
NO (1) NO162314C (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3827785A1 (de) * 1988-08-16 1990-02-22 Nico Pyrotechnik Abstandszuender mit vorrohrsicherheit
DE19848356C2 (de) * 1998-10-21 2001-09-13 Rheinmetall W & M Gmbh Zündnadel für Geschoßzünder mit einer mechanischen Übersetzung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL238502A (fr) * 1958-04-25
CH585891A5 (fr) * 1974-11-20 1977-03-15 Oerlikon Buehrle Ag
NO153441C (no) * 1980-12-11 1986-03-19 Junghans Gmbh Geb Prosjektilsikring for roterende prosjektiler.
DE3049082C2 (de) * 1980-12-24 1984-08-23 Diehl GmbH & Co, 8500 Nürnberg Sicherungseinrichtung für einen Zünder
DE3262029D1 (en) * 1981-06-30 1985-03-07 Oerlikon Buehrle Ag Safety means for a fuze of a spin-stabilised projectile
NO148792C (no) * 1981-09-21 1983-12-14 Raufoss Ammunisjonsfabrikker Sikringsanordning for rotasjonsprosjektil

Also Published As

Publication number Publication date
NO162314B (no) 1989-08-28
NO865033L (no) 1987-07-15
NO162314C (no) 1989-12-06
US4723490A (en) 1988-02-09
IL81185A0 (en) 1987-08-31
CA1269276A (fr) 1990-05-22
EP0229302A1 (fr) 1987-07-22
IL81185A (en) 1991-11-21
NO865033D0 (no) 1986-12-12
DE3662946D1 (en) 1989-05-24

Similar Documents

Publication Publication Date Title
DE2134945C3 (de) Raketengeschoß mit Sekundärgeschossen
DE2907308C2 (de) Geschoß mit mindestens einem ausstoßbaren Tochtergeschoß
DE1907315A1 (de) Geschoss mit Hohlsprengladung
DE2550093C3 (de) Beharrungszünder für Drallgeschosse mit Selbstzerlegereinrichtung
DE3737232A1 (de) Uebungsgeschoss mit verkuerzter reichweite
EP0068534A2 (fr) Dispositif de sécurité pour la fusée d'un projectile stabilisé par rotation
DE3149346C2 (fr)
DE1703501A1 (de) Aufschlagzuender mit kippbarem Rotor fuer Drallgeschosse
DE3119369C2 (de) Beharrungszünder für Drallgeschosse mit Selbstzerlegereinrichtung
DE642579C (de) Mechanischer Zuender fuer Drallgeschosse mit kombinierter Aufschlag- und Zeitzerlegereinrichtung
DE450061C (de) Zuender mit Vorrichtung zum Verhindern des Rueckschlagens des Zuendstrahls
DE720097C (de) Aufschlagzuender
EP0042957A2 (fr) Fusée pour projectiles à rotation
EP0229302A1 (fr) Poids d'inertie pour fusée de base d'un projectile stabilisé par rotation
DE562367C (de) Zuender fuer Drallgeschosse
DE2527339C3 (de) Aufschlagzünder mit einer mittig in einem Schlagkörper eingesetzten Zündpille
DE2842882C3 (de) Aufschlagzünder mit einer Zündkapsel
DE2008157C3 (de) Hohlladung
DE2149117A1 (de) Geschosszuender
DE1206761B (de) Aufschlagzuender, insbesondere Bodenzuender, fuer explosive Drallgeschosse mit mechanischer Selbstzerlegervorrichtung
DE2336880C2 (de) Drallgeschoßzünder mit einer Selbstzerlegervorrichtung
EP0139160B1 (fr) Fusée à percussion pour missiles rotatifs
EP0111198B1 (fr) Fusée à percussion
CH667527A5 (en) Spin operated fuse for explosive shell - has auxiliary pin preventing return to safe position after operation of centrifugal elements
DE4141082C2 (de) Drallstabilisiertes Übungsgeschoß mit verkürzter Reichweite

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19870805

17Q First examination report despatched

Effective date: 19881004

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE FR GB IT LI NL SE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3662946

Country of ref document: DE

Date of ref document: 19890524

ET Fr: translation filed
ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19921111

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19921116

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19921118

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19921119

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19921125

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19921126

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19921231

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19931208

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19931209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19931231

Ref country code: CH

Effective date: 19931231

Ref country code: BE

Effective date: 19931231

BERE Be: lapsed

Owner name: WERKZEUGMASCHINENEFABRIK OERLIKON-BUHRLE A.G.

Effective date: 19931231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19931208

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 86117026.4

Effective date: 19940710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051208