GB2216240A - Hollow charge projectile with extensible distance piece - Google Patents
Hollow charge projectile with extensible distance piece Download PDFInfo
- Publication number
- GB2216240A GB2216240A GB8830349A GB8830349A GB2216240A GB 2216240 A GB2216240 A GB 2216240A GB 8830349 A GB8830349 A GB 8830349A GB 8830349 A GB8830349 A GB 8830349A GB 2216240 A GB2216240 A GB 2216240A
- Authority
- GB
- United Kingdom
- Prior art keywords
- distance piece
- projectile
- hollow
- charge
- damping element
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
- F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
- F42B12/16—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge in combination with an additional projectile or charge, acting successively on the target
- F42B12/18—Hollow charges in tandem arrangement
Description
2216240 HOLLOW CHARGE PROJECTILE WITH EXTENSIBLE DISTANCE PIECE This
invention relates to a hollow charge projectile with an extensible distance piece, and more specificially to means for extending the distance piece out of its rest position in the hollow-charge funnel.
Earlier German patent specifications Nos. 35 22 009 and G 86 00 900 of the applicant describe means of extension of such distance pieces which operate efficiently, but these involve use of additional components and ignition elements which add to complexity and expenditure.
The object of the present invention is to reduce this complexity, to synchronize the procedure for extension of the distance piece with the projectile launching procedure in a simple manner, and generally to optimise the performance of the hollow charge.
This object is achieved in accordance with the invention by provision of a hollow charge projectile having a distance piece which is extensible out of its rest position in the hollow charge funnel and which is provided in its tip with a preliminary hollow charge as well as an associated detonating device, said distance piece additionally being provided at its rear end with a gas generator and its associated detonating device which is activated to bring about extension of the distance piece by a puncturing needle present in the base of the hollow charge funnel, this activation being effected automatically upon launching and acceleration of the projectile as rearward movement of the distance piece brings the gas generator detonating device into contact with the needle.
The invention will be explained further by reference to an exemplified embodiment which is shown diagrammatically in the accompanying drawings. In the drawings:
Fig. 1 is a partial longitudinal section through a hollow charge projectile in accordance with the invention shown with the distance piece retracted and in its rest position; and Fig. 2 is an enlarged detail, still in cross-section, of the inner end of the distance piece and the adjacent damping element.
The illustrated hollow charge projectile, in conventional manner, comprises a main hollow charge 20, an overlying funnel 21, and a covering head 23. A distance piece 10 is mounted, guided and held by means of shear pins 17 in a central opening 23a in the head 23. A preliminary hollow charge 11 with associated detonation device 13 is mounted in the tip of the distance piece 10 and a so-called gas generator 14, in the form of a propellant charge capable of generating gas pressure, and a detonation device 15 associated with that - which can be a conventional detonation pellet is arranged at the other end 10a of the distance piece 10. Also, positioned at this end 10a of the distance piece is a damping element 18, which is deformable and which butts against the wall of the hollow charge funnel 21 at a slight spacing in front of a projecting pin 16 located in the base 22 of the funnel 21.
Upon launching of the projectile the distance piece 10 is torn from its shear-pin mounting and the deformation of the damping element 18 is such that it is able to move rearwards, covering a specific travel path X, until the detonation cap 15 strikes against the tip of the needle 16. This brings about detonation of the propellant charge 14 and gas is generated explosively, as indicated by the arrows in Fig. 1, causing the distance piece 10 to be rapidly propelled outwardly from the projectile head 23.
As a result of the arrangement of the puncturing/ detonating needle 16 in the funnel base 22 the interior of the distance piece 10 can be kept free from detonating elements and so forth, so that also the spike formation chamber of the hollow charge is free, which leads to an optimim hollow charge performance.
Various shapes of elastic damping element 18 are possible within the scope of the invention. For example, it can be designed as a ring element with a Tshaped cross-section and slots 24, as illustrated in Fig. 1 of the drawings. In this respect the rear end 10a of the distance piece 10 is embraced by one side of the T-profile, whilst the other side butts against the funnel 21.
An alternative shape of damping element which may be used is a spiral spring where o.ne end of the coil loops around the end 10a of the distance piece while the other end of the coil is supported on the funnel 21.
Preferred embodiments of the damping element 18 are constructed so as to include means for retention in the guide opening 23a of the projectile cover 23 upon projection of the distance piece 10 therethrough when the gas generator 14 is ignited. For example, with an annular damping element 18 of T-shaped cross-section the T-beam is tapering, i.e. frusto-conical in design, as more clearly shown in Fig. 2, so that after ignition of the gas generator 14 and upon extension of the distance piece 10, this serves as a detent element trapped and retained in the guide opening 23a of the covering head 23.
Thus, the present proposal, in general terms is for a - 5 distance piece, which can be extended, telescopically, out of a hollow charge projectile in a simple manner, the effect of the projectile launching shock, or the inertia forces generated upon launching, or the launching acceleration on the distance piece 10, which is held in its retracted state by shear pins 17, being. used to bring about its automatic extension therefrom without the distance piece requiring detonation electronics of its own, or any requirement for synchronisation means. Upon launching of the projectile the distance piece 10 shears th.e shear pins 17 off and moves a specific distance X in the direction of the funnel 21 of the main hollow charge 20, in the base 22 of which a simple puncturing needle 16 is arranged. As a result of this positive rearward travel path X the detonating device 15 is activated by the puncturing needle 16, the gas generator 14 is ignited and - as already described - the distance piece 10 is forced outwards into its extended position by the generated gas pressure.
-1
Claims (7)
1. A hollow charge projectile having a distance ZI piece which is extensible out of its rest position in the hollow charge funnel and which is provided in its tip with a preliminary hollow charge as well as an associated detonating device, said distance piece additionally being provided at its rear end with a gas generator and its associated detonating device which is activated to bring about extension of the distance piece by a puncturing needle present in the base of the hollow-charge funnel, this activation being effected automatically upon launching and acceleration of the projectile as rearward movement of the distance piece brings the gas generator detonating device into contact with the needle.
2. A projectile as claimed in claim 1 wherein the distance piece in the rest position butts by way of a deformable damping element against the hollow-charge funnel.
3. A projectile as claimed in claim 2 wherein the deformable damping element is designed as a ring element embracing the rear end of the distance piece.
4. A projectile as claimed in claim 2 or 3 wherein the deformable damping element is provided with slots.
v
5. A projectile as claimed in claim 2 wherein the deformable damping element is designed as a spiral spring.
6. A projectile as claimed in any preceding claim wherein the distance piece is mounted, guided and held by means of shear pins in the covering head of the main hollow charge.
7. A hollow-charge projectile with extensible distance piece substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
1 Published 1989 atThe Patent Office, State House, 68'71 High HolbomLondonWClR 4TP. Further copies maybe obtained from The Patent Office. Was Branch, St Mary Cray, Orpington, Kent BR8 M. Printed by Multiplex techniques ltd, St Mary Cray, Kent, Con. 1/87
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883804992 DE3804992C1 (en) | 1988-02-18 | 1988-02-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8830349D0 GB8830349D0 (en) | 1989-02-22 |
| GB2216240A true GB2216240A (en) | 1989-10-04 |
| GB2216240B GB2216240B (en) | 1991-07-03 |
Family
ID=6347620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8830349A Expired - Lifetime GB2216240B (en) | 1988-02-18 | 1988-12-29 | Hollow charge projectile with extensible distance piece |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE3804992C1 (en) |
| FR (1) | FR2627581B1 (en) |
| GB (1) | GB2216240B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257238A (en) * | 1989-11-10 | 1993-01-06 | Secr Defence | Telescopic penetrator |
| US5415105A (en) * | 1992-11-28 | 1995-05-16 | Dynamit Nobel Aktiengesellschaft | Tandem warhead with piezoelectric percussion fuses |
| US5750917A (en) * | 1989-03-01 | 1998-05-12 | Daimler-Benz Aerospace Ag | Warhead |
| GB2354310A (en) * | 1989-10-19 | 2001-03-21 | Messerschmitt Boelkow Blohm | Warhead |
| US7013810B1 (en) * | 1999-05-24 | 2006-03-21 | Richard Ian Brydges-Price | Projectile for delivery of a tranquilliser |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007347A (en) * | 1989-07-19 | 1991-04-16 | Hughes Aircraft Company | Modular missile upgrade apparatus |
| DE3942841A1 (en) * | 1989-12-23 | 1991-06-27 | Dynamit Nobel Ag | ADJUSTABLE SPACER ON A HIGH CHARGE HEAD, SWITCHABLE FOR DEPTH OR SIDE EFFECT |
| DE4102772C1 (en) * | 1991-01-31 | 1998-10-01 | Daimler Benz Aerospace Ag | Two stage warhead combating reactively-armoured tanks |
| DE19634457B3 (en) * | 1996-08-26 | 2007-06-06 | Diehl Stiftung & Co.Kg | Tandem warhead |
| DE19827171A1 (en) * | 1998-06-18 | 1999-12-23 | Dynamit Nobel Ag | Weapon, especially anti-tank weapon |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2287671A1 (en) * | 1974-10-08 | 1976-05-07 | Serat | Anti-personnel missile with multiple gas compartments - has compartment receiving firing gas before passing to next compartment |
| FR2310547A1 (en) * | 1975-05-06 | 1976-12-03 | Realisa Et Applic Tech Et | Missile with secondary charge ahead of main charge - has small charge on nose cone positioned not to disturb main explosion |
| FR2539505B1 (en) * | 1983-01-14 | 1987-07-17 | Luchaire Sa | PERFECTED OGIVE FOR PROJECTILE |
| DE3522009C1 (en) * | 1985-06-20 | 1986-11-20 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Extendable impact contact |
| DE8600900U1 (en) * | 1986-01-16 | 1988-01-07 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De | |
| DE3614883C1 (en) * | 1986-05-02 | 1987-10-15 | Messerschmitt Boelkow Blohm | Extendable (telescopic) impact contact for shaped charges |
-
1988
- 1988-02-18 DE DE19883804992 patent/DE3804992C1/de not_active Expired
- 1988-12-29 GB GB8830349A patent/GB2216240B/en not_active Expired - Lifetime
-
1989
- 1989-02-16 FR FR8902038A patent/FR2627581B1/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5750917A (en) * | 1989-03-01 | 1998-05-12 | Daimler-Benz Aerospace Ag | Warhead |
| GB2354310A (en) * | 1989-10-19 | 2001-03-21 | Messerschmitt Boelkow Blohm | Warhead |
| GB2354310B (en) * | 1989-10-19 | 2001-07-04 | Messerschmitt Boelkow Blohm | Warhead |
| GB2257238A (en) * | 1989-11-10 | 1993-01-06 | Secr Defence | Telescopic penetrator |
| GB2257238B (en) * | 1989-11-10 | 1993-09-22 | Secr Defence | Kinetic energy penetrator |
| US5415105A (en) * | 1992-11-28 | 1995-05-16 | Dynamit Nobel Aktiengesellschaft | Tandem warhead with piezoelectric percussion fuses |
| US7013810B1 (en) * | 1999-05-24 | 2006-03-21 | Richard Ian Brydges-Price | Projectile for delivery of a tranquilliser |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3804992C1 (en) | 1989-04-13 |
| GB2216240B (en) | 1991-07-03 |
| FR2627581A1 (en) | 1989-08-25 |
| GB8830349D0 (en) | 1989-02-22 |
| FR2627581B1 (en) | 1991-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19971229 |