FI58980B - VINGSTABILIZERS IN THE PROJECT - Google Patents

Description

ESr *] [e] (H) EXTENSION. p ffilA m {'UTLÄGGN I NCSSKRIFT 5 O y O 0 JKft C i45) Patent -yonnoUy 11 05 1931

Patent mindelat ^ T ^ (51) K * .lk.3 / 1nt.ci.3 H2 B 13/22 ENGLISH - Fl N LAN D (21) Nt * «mlh * k« mu * —P * t * i * t * n »afcnlni 2555/71 (22) HakmiltpUvt — AMBkiilnfriat 13.09-71 (23) AHuHUvt — Giltlihatadkf 13.09-71 (41) Become Public - Blhrlt offancllg 20.03.72 PMMU. ) «Raklst« rihftllttlia hm *. „M» u.

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Federal Republic of Germany Förbundsrepubliken Tyskland (DE) P 2046329.0 (71) Etablissement Salgad, Vaduz, Liechtenstein (Ll) (72) Amos Joel Frostig, Haifa, Israel (lL) (74) Oy Jalo Ant-Wuorinen Ab (54) Wing-stabilized projectile - Vingstabiliserad project

The invention relates to a wing-stabilized projectile comprising a projectile body part, a tip body with a detonator, a tail tube with wing guide devices, in which a tubular steel cavity is arranged between the front projectile part and the rear projectile part and the surrounding cartridge parts comprising a bonding part.

German patent publication 1 164 883 and Swedish patent publication 220 889 disclose ammunition and grenades in which fragmentary parts are embedded in a bonding compound of e.g. plastic, possibly thermoplastic material. This applies both to ammunition in the form of simple projectiles, e.g. hand grenades and the like, and to wing-stabilized ammunition firing from a barrel or barrel. Uniform to these known grenades is that the cartridge part containing the fragment-sink parts is surrounded by a sheath of metal, e.g. steel, or plastic. Such a jacket acts as the actual "body" of the body of the grenade, which is why it must be strong enough so that the body of the grenade is not damaged during transport and handling. This applies in particular to grenades which, during firing, move through a pipe or barrel 2,58980, in which the grenade jacket is in frictional contact with at least a part of the inner wall of the barrel. In addition, a relatively high strength of the casing acting as a hull is required, since there are considerable centrifugal forces upon firing of the wing-stabilized projectile, which greatly affect the body of the grenade. However, such a projectile sheath, which is necessary to hold the individual parts of the grenade body together during firing, has the disadvantage that shattering of the shredded parts inside the sheath is considerably prevented by the fragmentary penetration of the shell wall. , in which part of the kinetic energy throwing the shards is wasted.

Swiss Patent Publication 305,149 discloses a sieve-stabilized projectile in which the fragment-containing part is pre-stressed at least in part by means of an elastically tensioned mechanical device in which concrete is used as the binder. A concrete body portion including fragmented portions is arranged around an inner steel tube to provide a prestressed concrete body portion, wherein the concrete body portion is subjected to compressive stress by tightening a threaded sleeve using a spacer. The steel pipe here acts as a device that exposes the concrete frame part to compressive stress. When the concrete body part containing the fragmented parts is also under compressive stress, the fragmented parts in the concrete cannot be ejected freely in the event of an explosion. The finished concrete insert forms such a dense unit that the individual fragments hardly detach from the concrete in the event of an explosion. Due to the compressive stress acting on the cartridge part containing the fragmented parts, the reinforced concrete body part simultaneously acts as the projectile body or support frame. The outermost layer of the concrete body part containing the fragmented parts, in which the compressive stress acts in the same way as in the inner parts of the body part, can be compared to a steel sheath or the like.

The object of the present invention is to provide a wing-stabilized projectile of the above-mentioned quality, in which a satisfactorily good cohesiveness of the parts forming the body part of the projectile is guaranteed and in which the fragmentation is affected by the explosive effect as a whole. A special feature of the wing-stabilized projectile according to the invention is that the cartridge part, in a manner known per se, comprises fragments embedded in a plastic mass, that the cartridge part is untensioned between the front and rear projectiles and that the ogival circumference of the cartridge part lacks steel.

By forming a wing-stabilized projectile in this way, the durability requirements for the tubular body of the grenade are met in an advantageous manner while the fragmentation is unimpeded by the explosion. The internal steel cavity of the projectile provides the necessary strength for the entire body of the projectile and holds the fragmentation cartridge part in place so that the projectile and also the fragmentation cartridge part withstand the high stresses generated at the moment of firing. Between the front and rear parts of the projectile, only said steel cavity holds the projectile in size. The body part of the projectile of uniform strength thus makes it possible for the cartridge part containing the fragmented parts to be formed without the casing so that the fragmented parts are freely exposed to the effect of an explosion. There is no reinforcement or the like per se on the outer circumference of the cartridge part containing the fragmented parts. The explosion therefore has full force on the throwing of the fragments. At the same time, the fragmentation cartridge part can be easily and quickly mounted on the projectile.

The invention is described in more detail below with reference to a structural example shown in the drawing.

The only figure shows as an example a batch of projectiles, i. an explosive projectile according to the invention formed as a wing-stabilized explosive projectile, partially cut away and schematically.

The projectile 1 is a wing-stabilized projectile with a projectile shell 2, a tip 3 with an igniter, a tail tube 4 and a wing guide 5. The middle projectile shell 2 has a steel housing 6 which is tubular in the case of a grenade. This central tube 6 receives the stress when firing and is at the same time a container of explosives. The steel housing is suitably connected to the front and rear of the projectile, for example by means of screws. The die parts 7, e.g. preformed fragments, ball-shaped steel parts or the like, are located in a body 8, which is preferably made of plastic. In this plastic mass or counter, the casting parts 7 are embedded so that the whole piece can be treated as a single structural part. The outer circumference of the plastic piece 8 containing the zinc parts is not made of metal, e.g.

Claims (1)

58980 made of woven metal or made of sheath. The outer surface of the plastic piece simultaneously forms the outer surface of the blast projectile. In the projectile projectile, the plastic body 8 is also formed as a sleeve-shaped body. It can be pushed onto the central steel tube 6 after removing the tip piece 3. Additional fastening of the plastic piece 8 is not necessary, as it is secured to the steel tube 6 by means of the front and rear of the projectile. The shape of the plastic body 8 is adapted to correspond to the tapered shape of the projectile. Such plastic bodies with projectile parts embedded in the substance can also be used in other types of explosive projectiles, e.g. artillery shells, air bombs, landmines, e.g. vibration shells and the like. The plastic body with its recessed shotgun parts can be of any shape, e.g. plate-shaped, hollow-shaped, sleeve-shaped and the like, in which case the outer or inner shape of the plastic body itself can be of any shape. If necessary, the plastic body may consist of two or more parts which can be joined or screwed together in a suitable manner. Claim: A wing-stabilized projectile comprising a projectile body part (2), a tip body (3) with a detonator, a tail tube (4) with wing guide devices (5), in which a tubular roll is arranged between the front projectile portion (2a) and the rear projectile portion (2b) (6) and a surrounding batch part (8) comprising ejection parts (7) embedded in the bonding mass, characterized in that the batch part (8) in a manner known per se comprises fragments (7) embedded in the plastic mass, and the batch part (8) is biasedly arranged between the front and rear projectile parts (2a and 2b, respectively) and that the steel circumferential surface of the cartridge part (8) lacks a steel casing. Patentkravi Vingstabiliserad projektil med en projektilkropp (2), en specdel (3) mediadrör, ett stjärtrör (4) med styrfensanordning (5), i vilken projektil mellan det främre projektilpartiet (2a) och