EP0218947B1 - Fusée d'impact comportant une amorce à percussion - Google Patents
Fusée d'impact comportant une amorce à percussion Download PDFInfo
- Publication number
- EP0218947B1 EP0218947B1 EP86112969A EP86112969A EP0218947B1 EP 0218947 B1 EP0218947 B1 EP 0218947B1 EP 86112969 A EP86112969 A EP 86112969A EP 86112969 A EP86112969 A EP 86112969A EP 0218947 B1 EP0218947 B1 EP 0218947B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuze
- firing pin
- impact
- balls
- sleeve
- 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
Links
- 238000010304 firing Methods 0.000 claims description 27
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000005474 detonation Methods 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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
Definitions
- the invention relates to an impact detonator for barrel weapon projectiles according to the preamble of claim 1.
- Such an impact detonator is already known from US-A-3,718,093.
- an impact detonator with a detonator which can be pierced from the back of the detonator with a spring-operated firing pin.
- the impact detonator has a mechanical delay device with a blocking body which, in its blocking position, lies on the one hand in recesses in the firing pin and on the other hand in recesses of a stationary detonator part.
- two inertial sleeves arranged one behind the other coaxially to the igniter part, which release the blocking bodies after the impact delay has ended.
- the tapping energy required for initiation is no longer available via an inertia-dependent hammer with a defined ignition delay time. Accordingly, a preloaded compression spring is provided in the aforementioned patent. After the locking body is unlocked, it strikes the firing pin against the primer.
- a impact detonator is known from FR-A 599 412, in which a firing pin is mounted separately in a securing sleeve.
- the mass of the firing pin is relatively small. With thin targets, its kinetic energy is often not sufficient to ignite a detonator. An ignition delay time is not provided.
- US-A-3 718 093 relates to an impact detonator for exercise bombs, particularly when it is turned at an angle.
- a firing pin and a securing sleeve are connected to one another via locking members in a securing manner, however, the locking sleeve is displaced in the ignition direction against the force of a spring upon impact and is finally locked by the locking members.
- the firing pin then slides into the ignition position, supported by spring force.
- the detonator is suitable for bombs, but not for missiles at long range and with thin targets. Since an ignition delay necessary for the projectile to penetrate sufficiently into the target is not achieved.
- the object of the invention is therefore to create a impact detonator for a mechanical, highly sensitive ignition system which initiates initiation with sufficient ignition delay time in the case of thin targets, flat angles of incidence and long combat distances.
- the firing pin has the mass required for inertia-dependent ignition with high impact energy.
- the proportion of the spring's propulsive force is negligible.
- the preloaded compression spring in conjunction with low friction losses during the movement of the firing pin ensures that the firing takes place safely with the firing pin.
- the ignition delay time which is decisive for the degree of destruction of the target, can be determined in a simple manner. With a low impact energy there is a longer ignition delay time than with a high impact energy. This is due to the fact that when the impact energy is low, the securing sleeve only has to be at the rear, housing-fixed stop so that the locking bolt can pierce the primer with the required energy. In contrast, with a high impact energy, the shorter ignition delay time is ensured by the distance of the recess fixed to the housing from the securing or basic position of the mechanical delay device.
- FIG. 1 shows a simplified cross-section through an igniter in the "safe" position
- FIG. 2 shows the igniter according to FIG. 1 in the ignition position.
- An impact detonator 1 consists of a housing 2 with recesses 3, 4 and bore 5, a cover 7 screwed at 6, a base body 8, a cup-shaped securing sleeve 9, a centrifugal securing device 10, a rotor 11 with a detonator 12 and a firing pin 13.
- the firing pin 13 consists of a piston sleeve 14 with a riveted firing needle 15 and a compression spring 16 which is clamped between a collar 17 and a plate 18.
- the piston sleeve 14 also has a stop 20, a space 21 for a compression spring 22 and recesses 23 for balls 24.
- the compression spring 22 fixes the piston sleeve 14 on the balls 24 in the starting position.
- the balls 24 are arranged in recesses 30. They are delimited on the outside by a guide wall 31 and on the inside by the compression spring 22.
- the securing sleeve 9 is provided with a bottom 33 and a bore 34. Their mass is approx. 30% less than that of the firing pin 13.
- annular recess 40 is provided at a distance 41, with a depth 42 and a length 43.
- the distance 41 corresponds approximately to the diameter 44 of the balls 24 and lies between the surfaces of the cutouts 30, 40 on the igniter bottom side.
- the depth 42 is somewhat greater than the diameter 44 of the balls.
- the length 43 corresponds approximately to twice the diameter 44 of the balls 24.
- an axial stroke of the securing sleeve 9 and the firing pin 13 coupled via the balls 24 takes place in the direction of arrow 45.
- the axial stroke ends in a first phase when the balls 24 enter the recess 40 Tip 46 has reached the position labeled 50 at the end of the first phase.
- the compression spring 22 telescopes the securing sleeve 9 and the piston sleeve 14 apart, counter to the direction of the arrow 45 up to the stop on the cover 7, and then in the third phase causes the firing pin 13 to advance until the detonator 12 is tapped 2.
- the ignition delay time is added up from the times of phases 1 to 3.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Claims (4)
- Allumeur à percussion (1) pour projectile d'armes à tube comportant une amorce (12) qui peut être percutée de l'arrière au moyen d'un percuteur (14,15) actionné sous l'action d'un ressort, comportant un dispositif de retardement mécanique (9,14,15,22) qui comporte des corps de blocage (24) qui, dans leur position de blocage, se trouvent d'une part dans des évidements (23) du percuteur (14,15), d'autre part dans des évidements (30) d'un élément allumeur (9), l'élément allumeur étant réalisé sous la forme d'un manchon de sûreté (9) mobile axialement et un autre évidement (40) annulaire recevant les corps de blocage (24), étant prévu dans un corps de base (8) côté boîtier à une distance (41) de l'évidement (30) du manchon de sûreté (9) situé dans la direction d'allumage (45), distance (41) qui existe entre les surfaces des évidements (30,40) situées du côté du fond de l'allumeur, de sorte que les évidements (30,40) sont décalés entre eux de la distance (41).
- Allumeur à percussion selon la revendication 1, caractérisé en ce que les billes (24) verrouillent un manchon de piston (14) avec le manchon de sûreté (9) de telle sorte que, lors de l'impact sur la cible, le manchon de sûreté (9) effectue, en même temps que le percuteur (13) et un ressort de compression (22) une course axiale correspondant à la distance (41) au cours d'une première phase, puis le déverrouillage se produit, sur quoi , au cours d'une seconde phase, le ressort de compression (22) écarte d'abord télescopiquement le manchon de sûreté (9) et le manchon de piston (14) jusqu'à ce que le manchon de sûreté (9) soit immobile côté boîtier (couvercle 7), pour entraîner alors, au cours d'une troisième phase, le manchon de piston (14) vers l'avant (flèche 45) jusqu'au percement d'un détonateur (12).
- Allumeur à percussion selon la revendication 2, caractérisé en ce que le manchon de sûreté (9) présente une masse inférieure d'environ 30% à celle du percuteur (13).
- Allumeur à percussion selon la revendication 3, caractérisé en ce que le diamètre (14) des billes (24) correspond à la distance (41).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3535854 | 1985-10-08 | ||
| DE19853535854 DE3535854A1 (de) | 1985-10-08 | 1985-10-08 | Aufschlagzuender mit einer zuendkapsel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0218947A1 EP0218947A1 (fr) | 1987-04-22 |
| EP0218947B1 true EP0218947B1 (fr) | 1991-03-27 |
Family
ID=6283036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86112969A Expired - Lifetime EP0218947B1 (fr) | 1985-10-08 | 1986-09-19 | Fusée d'impact comportant une amorce à percussion |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4693180A (fr) |
| EP (1) | EP0218947B1 (fr) |
| CA (1) | CA1285176C (fr) |
| DE (2) | DE3535854A1 (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3933436A1 (de) * | 1989-10-06 | 1991-04-18 | Diehl Gmbh & Co | Bodenzuender fuer rohrwaffengeschosse mit aufschlagfunktion |
| US5872324A (en) * | 1997-07-07 | 1999-02-16 | The United States Of America As Represented By The Secretary Of The Navy | Trimode fuze |
| DE19901045B4 (de) * | 1999-01-14 | 2007-06-06 | Junghans Feinwerktechnik Gmbh & Co. Kg | Aufschlageinrichtung für einen elektronischen Annäherungszünder mit einem ein Anzündstück tragenden Aufschlagkörper |
| US7587979B2 (en) * | 2006-08-02 | 2009-09-15 | Omnitek Partners Llc | Multi-stage mechanical delay mechanisms for inertial igniters for thermal batteries and the like |
| FR2991447B1 (fr) * | 2012-05-30 | 2017-04-07 | Mbda France | Systeme d'armement securise pour charge explosive |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR579672A (fr) * | 1923-05-26 | 1924-10-21 | Allumeur pour grenades à main, projectiles de minenwerfer ou autres | |
| FR599412A (fr) * | 1924-06-09 | 1926-01-12 | Fusée à répulsion | |
| US2376332A (en) * | 1941-06-14 | 1945-05-22 | Adelman Arthur | Antitank mine fuse |
| US2513536A (en) * | 1947-01-03 | 1950-07-04 | Us Sec War | All angle of impact inertia fuse |
| US2701527A (en) * | 1948-07-06 | 1955-02-08 | Louis P Granath | Selective delayed-action fuze |
| FR1017844A (fr) * | 1950-03-29 | 1952-12-19 | Soc Tech De Rech Ind | Fusée pour amorçage des projectiles |
| BE508953A (fr) * | 1951-02-08 | |||
| CH402672A (de) * | 1962-08-02 | 1965-11-15 | Oerlikon Buehrle Holding Ag | Selbstzerlegerzünder für Drallgeschosse |
| NL123881C (fr) * | 1963-02-07 | |||
| US3638501A (en) * | 1970-04-27 | 1972-02-01 | Gen Motors Corp | Sensor |
| US3718093A (en) * | 1971-04-22 | 1973-02-27 | Us Army | Firing pin assembly |
| CH585891A5 (fr) * | 1974-11-20 | 1977-03-15 | Oerlikon Buehrle Ag | |
| CH623408A5 (fr) * | 1977-10-20 | 1981-05-29 | Oerlikon Buehrle Ag | |
| EP0068534B1 (fr) * | 1981-06-30 | 1985-01-23 | Werkzeugmaschinenfabrik Oerlikon-Bührle AG | Dispositif de sécurité pour la fusée d'un projectile stabilisé par rotation |
| AT374584B (de) * | 1982-08-03 | 1984-05-10 | Oregon Ets Patentverwertung | Sicherungseinrichtung bei einer granate |
| ATE23634T1 (de) * | 1982-12-10 | 1986-11-15 | Oerlikon Buehrle Ag | Aufschlagzuender. |
-
1985
- 1985-10-08 DE DE19853535854 patent/DE3535854A1/de not_active Withdrawn
-
1986
- 1986-09-17 US US06/908,373 patent/US4693180A/en not_active Expired - Fee Related
- 1986-09-19 DE DE8686112969T patent/DE3678380D1/de not_active Expired - Lifetime
- 1986-09-19 EP EP86112969A patent/EP0218947B1/fr not_active Expired - Lifetime
- 1986-10-06 CA CA000519889A patent/CA1285176C/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0218947A1 (fr) | 1987-04-22 |
| DE3535854A1 (de) | 1987-04-09 |
| US4693180A (en) | 1987-09-15 |
| DE3678380D1 (de) | 1991-05-02 |
| CA1285176C (fr) | 1991-06-25 |
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