EP2462402A1 - Mörsergranate - Google Patents
MörsergranateInfo
- Publication number
- EP2462402A1 EP2462402A1 EP10747816A EP10747816A EP2462402A1 EP 2462402 A1 EP2462402 A1 EP 2462402A1 EP 10747816 A EP10747816 A EP 10747816A EP 10747816 A EP10747816 A EP 10747816A EP 2462402 A1 EP2462402 A1 EP 2462402A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mortar shell
- wing
- mortar
- fin structure
- tensile strength
- 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
- F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
- F42B30/08—Ordnance projectiles or missiles, e.g. shells
- F42B30/10—Mortar projectiles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/02—Stabilising arrangements
- F42B10/04—Stabilising arrangements using fixed fins
- F42B10/06—Tail fins
Definitions
- the invention relates to a mortar shell with a projectile body, a leading body connected to the projectile body and a tailgate attached to the tail rotor assembly.
- Mortar shells of the type mentioned above are known for example from: Rheinmetall, Weapentechnisches Taschenbuch, 7th Edition 1985, page 517f.
- As a material for both the Leitwerkschaft and the tail aluminum alloys are used in these known mortar shells, the tail to the center of gravity of the mortar as far forward as possible to set towards igniter.
- a mortar cartridge is further DE 10 2005 01 1 051 B3 removed, a mortar shell of DE 102 26 515 B3.
- the tail wings can tear unnoticed due to the inelastic but tensile base material or even completely tear off during firing.
- the tearing of a tail wing harbors in turn a great risk of injury to the operator and an influence on the trajectory of the entire story.
- the invention has for its object to select the choice of materials for the Leitwerkschaft and the wing wire of a mortar shell so that the forces acting on these parts before and during the launch of the mortar shell loads are optimally compensated.
- the invention is based on the idea to show an elastic material with a solid material to form an assembly with adapted or adaptable properties.
- the invention is based essentially on the idea of building the tail in two parts from similar materials with varying (variable) strength properties.
- the most resistant material for the Leitwerkschaft the mortar shell is used, which, however, is less elastic or plastically deformable.
- the material of the wing wire should be elastic or plastically deformable to absorb the occurring during handling prior to firing of the mortar shell falling and shock loads, without causing cracking of the tail.
- the tensile strength of the material of the wing pipework may be lower than that of the guide shaft. Both components can be positively connected by a sealed example fine thread. Alternative fastening solutions are also possible.
- the use of a plastic material for the wing piping also has the advantage that deformations of the tail are easily recognizable after improper handling of the mortar shell.
- both the Leitwerkschaft and the wing wire each consist of a light metal, preferably an aluminum or a magnesium alloy and variants thereof, with corresponding properties.
- the susceptibility to breakage depends on the hardness, the tensile strength, the modulus of elasticity, the heat treatment and microstructure, as well as surface coating, surface quality, etc., so that these quantities must be taken into account.
- the modulus of elasticity is usually determined by the material and is approximately 7000 in the case of aluminum.
- these two materials are not to be considered as limiting, but are one of many choices for the skilled person.
- the reference numeral 2 designates a guide shaft and the reference numeral 3 designates a winged lattice, the winged lattice 3 being fastened on the rear side to the guide shaft 2.
- the here hollow Leitwerkschaft 2 is usually used to hold amaschineladungsanfeuerung and a base charge that ignites further charges (not shown) when shooting through radial holes 4 in the Leitwerkschaft 2 through.
- the guide shaft 2 made of high-strength base material is provided on the front side with an external thread 5, via which it is connected to the projectile body (not shown) of the mortar shell 1.
- the guide shaft 2 is connected to the wing 3 of ductile base material with a (fine) sealed (fine) thread 6.
- the thread 5 and the threaded connection 6 and the fit 7 are preferably with a Dichtg. Locking adhesive and a defined tightening torque fixed to their Verbaustellen.
- the Leitwerkschaft 2 of a high-strength aluminum alloy (ie, an aluminum alloy whose tensile strength is chosen such that the Leitwerkschaft 2 the firing loads safely withstands) with low elasticity, while the material of the wing wire 3 a greater elasticity (or plasticity) than the material has the Leitwerkschaftes 2 to safely absorb the falling and impact loads occurring during handling before firing the mortar shell 1.
- the material of the wing piping 3 is preferably also an aluminum alloy, or alternatively of titanium, plastic, etc.
- the invention is not limited to the embodiment described above.
- the tail unit and the wing can also be made of completely different materials.
- the Leitwerkschaft also made of steel and the wing wire from an aluminum alloy.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Powder Metallurgy (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910035967 DE102009035967A1 (de) | 2009-08-04 | 2009-08-04 | Mörsergranate |
| PCT/EP2010/004830 WO2012031604A1 (de) | 2009-08-04 | 2010-08-06 | Mörsergranate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2462402A1 true EP2462402A1 (de) | 2012-06-13 |
| EP2462402B1 EP2462402B1 (de) | 2015-11-11 |
Family
ID=43430065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10747816.6A Active EP2462402B1 (de) | 2009-08-04 | 2010-08-06 | Mörsergranate |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2462402B1 (de) |
| DE (1) | DE102009035967A1 (de) |
| WO (1) | WO2012031604A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR853366A (fr) * | 1938-10-17 | 1940-03-18 | Dispositifs de constitution, de fabrication et de montage des empennages de projectiles lancés par mortiers | |
| NL285423A (de) * | 1962-04-27 | |||
| DE2034569C3 (de) * | 1970-07-11 | 1975-04-10 | Oy Tampella Ab, Tampere (Finnland) | Leitwerk für flügelstabilisierte Geschosse |
| DE10226515B3 (de) | 2002-04-18 | 2004-01-29 | Rheinmetall W & M Gmbh | Mörsergranate |
| DE102005011051B3 (de) | 2005-03-10 | 2006-10-26 | Bundesrepublik Deutschland, vertreten durch Bundesministerium der Verteidigung, vertreten durch Bundesamt für Wehrtechnik und Beschaffung | Mörserpatrone |
-
2009
- 2009-08-04 DE DE200910035967 patent/DE102009035967A1/de not_active Withdrawn
-
2010
- 2010-08-06 WO PCT/EP2010/004830 patent/WO2012031604A1/de not_active Ceased
- 2010-08-06 EP EP10747816.6A patent/EP2462402B1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012031604A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012031604A1 (de) | 2012-03-15 |
| EP2462402B1 (de) | 2015-11-11 |
| DE102009035967A1 (de) | 2011-02-10 |
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