EP2300774A1 - Treibkäfiggeschoss - Google Patents
TreibkäfiggeschossInfo
- Publication number
- EP2300774A1 EP2300774A1 EP09768883A EP09768883A EP2300774A1 EP 2300774 A1 EP2300774 A1 EP 2300774A1 EP 09768883 A EP09768883 A EP 09768883A EP 09768883 A EP09768883 A EP 09768883A EP 2300774 A1 EP2300774 A1 EP 2300774A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sabot
- guide cage
- projectile
- projectile according
- projectile body
- 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.)
- Ceased
Links
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229910000861 Mg alloy Inorganic materials 0.000 claims 1
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 abstract description 4
- 238000010304 firing Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/18—Caseless ammunition; Cartridges having combustible cases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
- F42B14/064—Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base
Definitions
- the invention relates to a sabot projectile with a subcaliber projectile body and a sabot.
- Such a sabot projectile is known for example from DE 43 30 417 C2. It comprises a rear side acting on the projectile body driving element made of metal, a front of the drive element subsequent, segmented and substantially cylindrical guide cage made of plastic and a segmented, in the front region of the guide cage radially inwardly extending and the projectile body holding support wall, which integrally with the guide cage is connected and therefore also made of plastic.
- a disadvantage of this known sabot is, inter alia, that the production of the guide cage is expensive and that the guide cage to achieve a sufficient axial rigidity has a relatively high weight.
- the invention has for its object to provide a sabot projectile in which, despite the use of a plastic guide cage rigid axial and radial guidance of the projectile body is ensured when shooting the sabot projectile, the weight of the guide cage is kept lower than comparable with comparable sabot projectiles.
- the guide cage is a hollow profile, preferably produced by injection molding, which has a central recess extending in the axial direction through which the projectile body passes and a plurality of the central recess enclosing and extending extending in the direction of the longitudinal axis of the guide cage chamber-shaped Includes cavities.
- the radial guidance of the sabot is not taken by the guide cage itself, but by a frontally connected thereto support wall, for example made of metal, preferably made of a light metal.
- the guide cage contains at least four, preferably eight, evenly distributed over the circumference arranged chamber-shaped cavities which are open on the front side and closed at the rear.
- the central recess along the longitudinal axis of the sabot has a substantially constant inner diameter, which corresponds to the maximum outer diameter of the projectile body (in a guide-stabilized projectile thus the maximum outer diameter of the tail).
- the wall thickness of each of the cavities laterally adjoining walls not chosen constant, but is adapted to the maximum load case occurring at the launch of the sabot projectile. This can be achieved in a simple manner in that the wall thickness decreases substantially continuously from the rear-side region of the guide cage to its front end.
- the guide cage can be provided on its front end with knob-shaped extensions which protrude through corresponding holes in the support wall and non-positively or positively with the support wall (such as thermal deformation, mechanical beading or bonding ) get connected.
- FIG. 1 shows the perspective view of a first embodiment of a sabot projectile according to the invention
- FIG 2 shows a longitudinal section through the sabot projectile shown in FIG there with H-Il designated cutting line;
- FIG. 3 shows three cross sections through the sabot projectile along the section lines indicated in FIG. 2 with MI-III, IV-IV and V-V;
- Figure 6 shows a connection between the guide cage and the supporting wall reproducing sectional view.
- FIG. 7 shows the perspective view of one of two segments of the guide cage of the sabot projectile shown in FIGS. 1 and 2 and FIG
- FIG. 8 shows a longitudinal section through the guide cage in the region of a chamber-shaped cavity.
- FIGS. 1 and 2 designates a sabot projectile, which comprises a subcaliber projectile body 2 with conical structure 3 and a sabot 4.
- the sabot 4 consists essentially of a rear side acting on the projectile body 2 multi-part propellant 5 ( Figure 2), with which the projectile body 2 is connected at the rear via a clamping connection 6, a front side of the driving element 5 subsequent cylindrical guide cage 7 and a arranged front portion of the guide cage 7, radially inwardly extending and the projectile body 2 holding support wall. 8
- the guide cage 7 is composed of two, each made of plastic, half-shell-shaped segments 9, 10 together.
- the support wall 8 consists of two half-discs 11, 12 made of an aluminum alloy. The attachment of these half-discs 11, 12 to the segments 9, 10 of the guide cage 7 by means of knob-shaped extensions 13 which protrude through corresponding holes 14 of the support wall 8 and are connected to the support wall 8 ( Figure 6), for example by adhesive bonds, thermal remelting etc.
- the guide cage 7 is a hollow profile produced by injection molding, which has a central recess 17 extending in the axial direction, through which the projectile body 2 can be passed, and eight peripherally enclosing the central recess and extending in the direction of the longitudinal axis 100 of FIG Sabotage cage 4 extending chamber-shaped cavities 18 contains.
- the chamber-shaped cavities 18 are open at the front and closed at the rear (FIG. 8).
- the central recess 17 of the guide cage 7 has along the longitudinal axis 100 of the sabot 4 has a substantially constant inner diameter corresponding to the maximum outer diameter of the cone Leitwerkes 3 of the projectile body, so that the projectile body 2 front not by the guide cage 7, but only by the support wall 8 is held.
- the guide cage 7 can be produced in a simple manner by injection molding (a corresponding segment is shown in FIGS. 7 and 8).
- the open front hollow profile is very good injection technology produced by removable front cores.
- the cores may have draft angles whose contours are selected so that the wall thicknesses D of the walls adjoining each of the cavities 18 laterally (see Fig. 8) are adapted to the loading case when launching the sabot projectile and from the rear, the Driving element 5 facing the end of the guide cage to its front end decreases continuously.
- the guide cage need not be an injection molded part. Rather, it can also be a hollow profile, which is made of a fiber-reinforced plastic (preferably a glass or carbon fiber reinforced polyamide) by means of a suitable method.
- a fiber-reinforced plastic preferably a glass or carbon fiber reinforced polyamide
- Retaining wall 10 segments (guide cage), 12 segments (retaining wall), half-disc nubby extension
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810029397 DE102008029397A1 (de) | 2008-06-23 | 2008-06-23 | Treibkäfiggeschoss |
| PCT/EP2009/003705 WO2009156034A1 (de) | 2008-06-23 | 2009-05-26 | Treibkäfiggeschoss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2300774A1 true EP2300774A1 (de) | 2011-03-30 |
Family
ID=41057348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09768883A Ceased EP2300774A1 (de) | 2008-06-23 | 2009-05-26 | Treibkäfiggeschoss |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2300774A1 (de) |
| DE (1) | DE102008029397A1 (de) |
| WO (1) | WO2009156034A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010019384A1 (de) | 2010-05-04 | 2011-11-10 | Rheinmetall Waffe Munition Gmbh | Geschoss mit einem Flügelleitwerk |
| DE102012020540A1 (de) | 2012-10-19 | 2014-04-24 | Rheinmetall Waffe Munition Gmbh | Patrone und Verfahren zu seiner Herstellung |
| DE102012020541A1 (de) | 2012-10-19 | 2014-04-24 | Rheinmetall Waffe Munition Gmbh | Patrone und Verfahren zu seiner Herstellung |
| DE102013006498A1 (de) * | 2013-04-16 | 2014-10-16 | Rheinmetall Waffe Munition Gmbh | Treibkäfiggeschoss |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3005409A (en) | 1944-06-30 | 1961-10-24 | Henry F Dunlap | Projectile |
| US2994273A (en) | 1944-06-30 | 1961-08-01 | Robert M Bleakney | Projectile |
| IL65929A0 (en) | 1982-06-01 | 1984-04-30 | Israel State | Sub-caliber projectile |
| DE3843566C1 (de) * | 1988-12-23 | 1995-04-06 | Rheinmetall Gmbh | Segmentierter Treibkäfig |
| DE4330417C2 (de) | 1993-09-08 | 1998-02-26 | Rheinmetall Ind Ag | Treibkäfig für ein unterkalibriges Geschoß |
-
2008
- 2008-06-23 DE DE200810029397 patent/DE102008029397A1/de not_active Withdrawn
-
2009
- 2009-05-26 EP EP09768883A patent/EP2300774A1/de not_active Ceased
- 2009-05-26 WO PCT/EP2009/003705 patent/WO2009156034A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009156034A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008029397A1 (de) | 2009-12-24 |
| WO2009156034A1 (de) | 2009-12-30 |
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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 |
|
| 17P | Request for examination filed |
Effective date: 20101203 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20130308 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
| 18R | Application refused |
Effective date: 20160314 |