WO2009053094A1

WO2009053094A1 - Projectile, particularly for so-called handguns

Info

Publication number: WO2009053094A1
Application number: PCT/EP2008/009026
Authority: WO
Inventors: Michael Reichenberg
Original assignee: Michael Reichenberg
Priority date: 2007-10-25
Filing date: 2008-10-24
Publication date: 2009-04-30
Also published as: DE102007051406B3

Abstract

The invention relates to a projectile having a projectile body (1) comprising a cylindrical projectile body section (2) near the rear of the projectile. At least two flat limiting recesses (5, 6) are disposed therein, extending at least in the manner of an annular groove at a distance from each other, and therebetween a slight material thickening (7) extending at least in an approximately collar-like manner, having a slightly smaller or equally large diameter relative to the projectile body section (2). Said projectile body section is covered by a thin-walled, preferably copper guide band ring (4) that is broadened in the manner of a sleeve and is held in the limiting recesses (5, 6) in an axially non-displaceable manner at a distance that suffices both for the gas sealing of the respective barrel profile and for transferring the angular momentum thereof onto the projectile. For the latter, the guide band ring (4) is pressed in places radially toward the interior onto the material thickening (7) during the passage of the projectile through the barrel, and is thus connected at least by means of traction for the transfer of angular momentum.

Description

description

Projectile, in particular for so-called handguns

The invention relates to a projectile, in particular for so-called handguns, with the features specified in the preamble of claim 1. By "handguns" is meant firearms which are usually held in one or both hands during firing, but, for example, also machine guns which rest upon firing on a tripod or the like.

For projectiles for such handguns are, for. B. to coat bullets, such. B. in the part-shell projectile used in particular as a hunting ground. This has a jacket made of copper, a copper alloy or mild steel with a z. B. tapered, open at the top head, an adjoining, for the leadership of the projectile in the gun barrel certain cylindrical Wan- dungsabschnitt and a backward z. B. slightly tapered tail. The smooth-walled jacket surrounds a soft, usually made of lead bullet core with z. B. exposed tip, hollow tip or similar, the bullet deformation in the target serving constructions.

The cylindrical wall section takes over the passage of the projectile projectile through the weapon barrel whose swirl profile. This is either a field-pull profile whose sharp-edged fields extend into the mantle surface to a depth of z. B. about 1/10 mm, ie more or less clearly visible with the naked eye, impress, or a polygon profile whose guide surfaces its outline z. B. three, four or hexagonal deform. Both cause the flight-stabilizing projectile spin. These are in the field-train profile, the diameter between the fields, the polygon profile of the smaller inner diameter, ie the respective inner caliber of the gun barrel, slightly undersized compared to the corresponding bullet caliber.

Because of the disadvantages associated with the material lead, both in the production of such bullets, as well as in their use, then z. B. in the form of pollution by soil contamination by the lead, z. For example, by misdirected hunting bullets, but also by contamination of the meat with lead particles of z. B. shot with such bullets, these bullets are now also in the hunting at least more controversial.

For the big game hunt z. B. in addition to Teilmantelgeschossen also Vollmantelgeschosse be used. In their case, a hard metal core is completely covered by a likewise smooth-walled shell of copper or brass, which can also be deformed accordingly for swirl absorption. Possibly. These are also massive copper or brass bullets.

However, the use of copper for the production of such small arms projectiles is now increasingly increasing their manufacturing costs due to the currently very strong increase in copper world market prices.

The invention is based on the problem to provide a projectile, especially for so-called small arms, which with high precision target by swirl recording at the same time gas seal when passing through the barrel both manufacturing technology and material far more cost-effective and environmentally friendly than previously produced and can also be used, and also in conventional weapon systems with the two mentioned inner barrel profiles.

This problem is solved with a projectile having the features of claim 1. Advantageous embodiments are the subject of the subclaims.

The invention is based on the idea of arranging a type of guide strip made of a material which can be deformed by pressurization, for the transfer of gun barrels to a projectile, in particular for so-called small arms, in the area of the previously provided cylindrical projectile body section. B. from artillery projectiles ago is known. But it should, unlike there, as a leader not a well above the projectile extent outstanding, so to speak massive, z. B. elaborately rolled into an annular groove in the vicinity of the projectile tail type ring serve. Because of this, there must be the bullet body diameter smaller than the field diameter of a field-train profile, so that, so to speak, space is available for the at

Impression of the fields in the guide band required displacement of guide strip material in the axial direction on the bullet circumference, d. H. the projectile jacket so that this flow of material between projectile body and gun run profile, possibly even supported by so-called relief grooves, can take place at all, which also leads to the disadvantages such as running deposits and combustion gas slippage.

According to the invention, a thin-walled, sleeve-like ring is provided instead as a guide strip for an arrangement in a section of the cylindrical projectile body section designed as a swirl section, - A -

the covered in this at least one quasi-circumferentially formed minor material thickening in a small spacing.

Characterized in that a the projectile tail approximate part of the cylindrical projectile body portion is provided as a swirl-receiving portion and this limited by two at a distance from each other at least ringnutartig circumferentially formed shallow boundary recesses, that between these two Begrenzungsvertiefungen at least one opposite them at least approximately collar-like circumferential slight thickening of material is formed whose diameter is slightly smaller than or equal to the size of the rest of the cylindrical projectile body portion, and that a thin-walled, consisting of a deformable by pressurizing material, sleeve-like widened in the loose state formed guide band ring in one in cooperation with the two boundary depressions at least not axially slidable arrangement of these at least one material thickening in a both for the gas seal of a gun run profile as well as recording the Dralls sufficient spacing covered, for which its outer diameter correspondingly slightly larger than the largest inner diameter, the diameter of the remaining cylindrical bullet body portion, however, is slightly smaller than the smallest inner diameter of this arms run, the following is achieved:

During the passage of the guide band ring according to the invention by a gun barrel with a field-pull profile, in particular a so-called handgun, he can due to the invention selected diameter of the entire, ie designed by trains and fields profile interior adapt surface, including its trains, where it then gas-tight rests, for which its outer diameter, as the diameter of all conventional cladding projectiles, compared to the Zugdurchmesser need only be slightly excessive.

To memorize the fields of such a field-train profile in the guide band ring for the twist transmission now no longer, as in the aforementioned Artilleriegeschos- sen guide strip material in the axial direction between the projectile body and gun running profile are displaced, for which the guide band of the fields is axially pierced, but instead it can guide ring of the invention instead of the fields of the profile in places pressed radially inward into the space between the guide band ring and projectile body and finally pressed onto the lateral surface of at least one collar-like circumferential material thickening. D. h., The Lauflaufdrall is now transmitted by the induced in this way frictional connection between the guide band ring and lateral surface of the material thickening on the floor and thus without unwanted increase in gas pressure and other, previously mentioned in the artillery shells disadvantages.

For this purpose, in view of the given real size dimensions of the gun runs and bullets and the guide band ring according to the invention, the diameter of the minor material thickening does not necessarily have to be smaller, but can also be equal to the diameter of the projectile body without disadvantages.

The material as well as the production costs for the production of the projectiles considered here can be considerable be reduced. Because for the weapon barrel swirl recording must, unlike previously at z. B. shell floors, the projectile casing itself no longer from z. As high-priced copper or a similar copper alloy. Instead, now compared to the entire respective projectile length only narrow, thin-walled, in loose, ie not arranged on the projectile state, sleeve-shaped widened and thus a much smaller amount hochprei- sigen material such. Copper, requiring guide band ring.

After the intended arrangement on the projectile body in the specific and adapted cylindrical swirl-receiving section, the guide-band ring projects slightly beyond the circumference of the remaining cylindrical projectile body section in the order of magnitude of the inner surface of the weapon barrel of the given dimension, thus being slightly oversized in order to get - after the projectile launch - sufficient contact with the inner barrel profile for swirl shooting. At the same time, in the case of a field-pull profile, it is also gas-tight on the trains and, in the case of a polygonal profile, at least approximately equally on its guide surfaces, and the fields of the field-train profile are impressed on its resistance-reducing short or narrow ones Outside, as already mentioned, although only slightly deep, but still sufficiently sharp contours for the twist transfer to the projectile.

Since the rest of the cylindrical projectile body portion gets no contact because of its undersize with respect to the smallest inner diameter of the arms running profile, thus advantageously its surface, but also the entire remaining floor outside, without risk of z. B. accelerated wear, in particular the field-train profile of a gun barrel, be very hard and consequently from a corresponding, z. B. compared to copper much cheaper and without quantity restrictions available hard material such. As steel. From such a material, however, the entire projectile may then be in a massively homogeneous form.

It can now not only on very expensive copper, but also on the previously, as mentioned, extensively used, the environment in the bullet production and the bullet use onerous, also now increasingly expensive lead will be dispensed with.

By inventively provided guide band ring so now very hard projectile body, without to Rundlauf inaccuracies in the weapon's leadership leading deformation, are fired, even from conventional weapons systems at also lower Durchpresswiderständen by the gun barrel, as they now - resistance-reducing - not more abut itself with its cylindrical body portion even on the respective inner profile.

In addition, with such a pressure-deformable sleeve-shaped, ie, increased during the bullet passage through the gun barrel to the alternative two running profiles adapting and therefore good gas-sealing guide band ring, the gun barrel overuse gas pressures, as in contrast, harder, without such a guide band ring only makes it more difficult for the swirl mount deformable shell materials, and thus avoided the gun barrel service life be extended. By virtue of the interaction of the guide band ring, which is preferably made of copper, with at least one circumferential thickening of the swirl-receiving portion, this ring can therefore also have a material-saving thinness and thereby an advantageously easy swirl-pick-up deformability by pressurization.

The concept according to the invention of disposing a thin-walled guide band ring in the usually existing cylindrical section of a projectile body in two spaced-apart annular groove-like limiting recesses, which covers at least one collar-like circumferential thickening of the material at a small spacing, enables not only a saving of material but also a cost-effective production of such projectiles. Because this requires neither complex special tools nor such machines. So a z. B. predominantly cylindrical projectile body from a z. B. made of steel round material corresponding diameter z. B. on normal lathes by simple mechanical processing on the projectile nose, in the provided for the arrangement of the guide band ring cylindrical swirl portion and the bullet tail are made with standard tools. This relatively large manufacturing tolerances allow also a very fast processing without precision problems.

The fixation of the guide band ring in the two annular groove-like limiting depressions can be done inexpensively with conventional tools and machines. In addition, that the on the floor to be fixed guide band ring must not be allowed to move axially, no complex intermediate or connecting means necessary, as they are z. B. would be necessary in conventional hard or composite core projectiles to not slidably connect a guide band ring with the projectile body.

Advantageously, the lateral surface of the at least one peripheral slight thickening of the material has a structure, preferably by surface depression configurations in the form of likewise simple, cost-effective manner producible with such tool, parallel to the longitudinal axis of the projectile body embossed grooves forming a groove or Rändelprofil. Then the passage of the fired projectile through the gun barrel for the swirl transfer to the bullet takes place at least locally pressing the guide band ring on this material thickening be supplemented by an additional, the already brought about frictional connection additionally securing positive connection by material from the inside of the Guide ring rings in these grooves and possibly even flows down to the bottom.

It is also conceivable, instead of for the interaction with the guide band ring according to the invention, to provide an approximately collar-like circumferential slight material thickening at least two corresponding peripherally formed narrow type ribs with equally slightly smaller than or equal to the diameter of the projectile body, each on the same extent inner groove side of the two boundary recesses are then formed. These can also z. B. have a groove or knurled profile to allow in addition to the traction connection still a positive connection with the guide band ring. Reference to a schematic drawing, an embodiment of the invention will be described below.

The drawing shows a side view in almost 10-fold magnification part of the projectile body 1 in particular for so-called handguns, such as. B. also be used for hunting, provided, for. B. about 30 mm long, solid made of steel projectile caliber .308. In the projectile body section 2, which is insignificant here in relation to the invention and is therefore not shown - the projectile head (top) and the projectile end (bottom), approximated to the projectile end, a swirl-receiving section 3 is formed. It is covered by a guide band ring 4, about a quarter of which is cut out for the purpose of more detailed illustration in the right half of the drawing.

The - after z. B. C. I. P. - to the smallest inner diameter of such .308er gun barrel with field-train profile, d. H. to its about 7.62 mm amount field diameter, slightly undersized diameter of the cylindrical projectile body portion 2 shown is about 7.5 mm, while the larger train diameter of .308er gun barrel is about 7.82 mm.

The swirl-receiving portion 3 is limited by a short, perpendicular to the projectile longitudinal axis, so to speak outer groove cheek or groove side wall of two at a distance from each other on the circumference of the projectile body 1 annularly circumferentially formed flat boundary recesses 5, 6. The latter in turn delimit a material thickening 7, which is at least approximately circular in shape, ie slightly raised relative to the bottom of the two delimiting recesses 5, 6, with a diameter of approx. 7.4 mm. Its lateral surface is provided with a surface structure with recesses in the form of a groove or knurl profile 8 with grooves running parallel to the longitudinal axis of the projectile body 1. Instead of these - axial - grooves are differently designed groove profiles in other, z. B. oblique or cross arrangement, but also other depression configurations, for. B. in the form of rows of holes or the like, conceivable.

The material thickening 7, which can be named "knurling collar" for short, is in a small spacing of a thin-walled sleeve-shaped guide band ring 4 made of copper, which is easily deformable by pressurization, with a wall thickness of approximately 0.3 mm, a width of approximately 8 The degree of the small spacing is adapted to the small depth also mentioned for the field embossings in the guide band ring 4 according to the invention Material thickening 7.

The two marginal edges 9, 10 of the guide band ring 4 are at least flush in the two boundary recesses 5, 6 at the respective vertical outer groove cheek or groove flank sidewall adjacent, retracted or indented, whereby he is at least not axially displaceable. So that he can not possibly rotate about the projectile axis, its marginal edges 9, 10 in the two limiting recesses 5, 6 fixed by strangulation or crimping.

With regard to the field-pull profile of a .308 bullet, the outer diameter of the guide band ring 4 according to the invention is for the transfer intended both with it the weapon barrel twist on the projectile as well as gas sealing of the inner barrel surface designed by courses and fields approx. 7,85 now. Thus, it is not only larger than the diameter of the swirl-transmitting fields, which amounts to approximately 7.62 mm in a .308 projectile, but is also sufficiently larger for the gas seal than its approximately 7.82 mm-sized tensile diameter. Accordingly, it is thus beyond the circumference of the remaining cylindrical, a diameter of only about 7.5 mm having projectile body portion 2 on.

Corresponding dimensional relationships exist with regard to the smallest or largest inner diameter of a polygonal profile at z. B. a .308 bullet.

The supernatant of the guide band ring 4 on the projectile body causes in the immediate on the launch of the bullet penetration into a z. B. a field-pull profile having gun barrel a correspondingly sudden mounting and pressing the sharp-edged field ribs in the copper NEN guide band ring 4 and consequently its at least corresponding spotwise pressing with the contour of narrow, slightly oblique to the bullet axis - usually to the right - recessed approximately rectangular sections of its circumference on the lateral surface of the material thickening 7, resulting in a frictional connection with this. By doing at these points also effected flow of the soft copper this penetrates into the respectively there below the guide band ring 4 (s) groove (s) of the groove profile 8, possibly up to the bottom, whereby he for a reliable twist transmission also still form fit with the material thickening or the knurled collar 7 connects. It is understood that in other storey calibers the dimensions given above change accordingly.

The guide band ring 4 according to the invention allows due to the saving of increasingly expensive materials such as copper and lead on the one hand and simple, inexpensive operations in the production on the other hand, a cost-saving and environmentally sound mass production as well as a similar use of floors, especially by so-called small arms and thus z , B. also hunting weapons.

LIST OF REFERENCE NUMBERS

1 bullet body

2 cylindrical projectile body section 3 swirl receiving section

4 guide band ring

5 annular groove-like limiting depression

6 annular groove-like limiting depression

7 collar-like material thickening, knurled collar 8 grooved or knurled profile

9 marginal edge (from No. 4) 0 marginal edge (from No. 4)

Claims

claims

1. projectile, in particular for so-called handguns, comprising a projectile body (1) with a substantially cylindrical projectile body portion (2) between the projectile head and the bullet tail, characterized

in that a part of the cylindrical projectile body section (2) approximated to the projectile tail is provided as a swirl-receiving section (3) and bounded for this purpose by two flat boundary recesses (5, 6) running at a distance from one another at least annularly,

- That between these two boundary recesses (5, 6) at least one opposite them at least approximately collar-like circumferential slight thickening material (7) is formed whose diameter is slightly smaller than or equal to the size of the remaining cylindrical projectile body portion (2), and - that thin-walled, consisting of a deformable by pressurization material, sleeve-like widened in the loose state formed guide band ring (4) in a co-operation with the two Begrenzungsvertiefungen (5, 6) at least axially non-displaceable arrangement at least this at least one material thickening (7) in one covering sufficient spacing for both the gas seal of a gun barrel profile and receiving its swirl, for which its outer diameter correspondingly slightly larger than the largest inner diameter, the diameter of the remaining cylindrical projectile body portion (2), however, kleinf conveniently smaller than the smallest inner diameter of this weapon barrel is.

2. Projectile according to claim 1, characterized in that the projectile body (1) is solid.

3. Projectile according to claim 2, characterized in that the projectile body (1) consists of steel.

4. Projectile according to one of the preceding claims, characterized in that the lateral surface of the at least one material thickening (7) is provided with a structure (8).

5. Projectile according to claim 4, characterized in that as a lateral surface structure (8) depression configurations are provided.

6. Projectile according to claim 5, characterized in that as recesses parallel to the longitudinal axis of the projectile body (1) embossed embossed, a groove or Rändelprofil (8) forming grooves are provided.

7. Projectile according to one of claims 1 to 3, characterized in that the two at least annular groove-like circumferential limiting recesses on their respective quasi inner groove cheek side pass into a circumferential narrow type rib with a flat lateral surface, between which a further annular groove-like circumferential recess is formed , wherein the diameter of these two ribs is equally slightly smaller than or equal to the outer diameter of the projectile body.

8. projectile according to claim 7, characterized in that the lateral surfaces of the two rib-like embodiments are provided with a structure, preferably also in the form of parallel to the longitudinal axis of the projectile body continuously embossed, forming a groove or Rändelprofil grooves.

9. Projectile according to one of the preceding claims, characterized in that the guide band ring (4) consists of copper or a copper alloy.

10. Projectile according to claim 9, characterized in that each of the two marginal edges (9, 10) of the guide band ring (4) in the respective adjacent limiting recess (5, 6), at the quasi outer Nutwangen side wall adjacent, at least flushed ,

11. Projectile according to claim 10, characterized in that the two marginal edges (9, 10) are fenced into the boundary openings (5, 6).