EP0687882B1 - Munitionszuführmechanismus - Google Patents

Munitionszuführmechanismus Download PDF

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Publication number
EP0687882B1
EP0687882B1 EP95401376A EP95401376A EP0687882B1 EP 0687882 B1 EP0687882 B1 EP 0687882B1 EP 95401376 A EP95401376 A EP 95401376A EP 95401376 A EP95401376 A EP 95401376A EP 0687882 B1 EP0687882 B1 EP 0687882B1
Authority
EP
European Patent Office
Prior art keywords
rotation
abutment
ammunition
mechanism according
lever
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.)
Expired - Lifetime
Application number
EP95401376A
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English (en)
French (fr)
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EP0687882A1 (de
Inventor
Gérard Soulaigre
Robert Vernet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giat Industries SA
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Giat Industries SA
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Filing date
Publication date
Application filed by Giat Industries SA filed Critical Giat Industries SA
Publication of EP0687882A1 publication Critical patent/EP0687882A1/de
Application granted granted Critical
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/06—Feeding of unbelted ammunition using cyclically moving conveyors, i.e. conveyors having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke
    • F41A9/09—Movable ammunition carriers or loading trays, e.g. for feeding from magazines
    • F41A9/10—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging
    • F41A9/13—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane
    • F41A9/14—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is transverse to the barrel axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/38—Loading arrangements, i.e. for bringing the ammunition into the firing position
    • F41A9/39—Ramming arrangements
    • F41A9/42—Rammers separate from breech-block

Definitions

  • the subject of the present invention is a mechanism for placing of ammunition in the breech chamber of a medium or large caliber weapon, comprising on the one hand ammunition supply device which is driven in rotation by a drive device and on the other hand less a means of delivery and a means of wedging the ammunition operating successively, the delivery means and the wedging means being integral in rotation with the feeding device, the latter performing during a round of ammunition stationing successively a first rotation positioning the ammunition on the one hand the axis of the cylinder head chamber and secondly the means of repression to allow him to repress the ammunition, and a second rotation positioning the means to allow it to carry out the the ammunition in the forcing cone.
  • the first and second rotations take place around two different axes, i.e. with a complex movement, hence a mechanical complexity which has as a corollary a relative mechanical fragility of the whole, hardly compatible with the requirements of new types of artillery equipment.
  • French patent application 2,346,667 describes a loading device in which a tilting bucket receives a propellant charge and pushes in a single operation the charge and a projectile in the chamber of the weapon. In this device the projectile is trapped by inertia during the stop of the trough. Such a wedging mode is not sufficiently reliable.
  • the subject of the present invention is a mechanism for stationing of the aforementioned type, but which has a mechanism both simpler and more robust than in Art Prior.
  • the basic idea of the invention is to perform both rotations around a single axis so as to obtain the desired simplicity, and as a result, to also win over the time of a full charging cycle.
  • the shift mechanism according to the invention is characterized in that it comprises a rotating part allowing the first and second rotations of the feeding device are carried out around the same axis of rotation cooperating with a retractable stop means allowing to stop the rotation of the feeding device in a position corresponding to the end of the first rotation.
  • the retractable stop means may include a retracting device moving the stop means between two positions, namely a first position, active, in which the stop means is capable of causing the stopping of the rotation of the feeding device at the end first rotation, and a second position, inactive, in which the stop means is deleted and does not act on the rotation of the feeding device.
  • the retractable stop means advantageously comprises a first stop lever sliding longitudinally relative to said rotary part, but integral in rotation with said part, the feed device comprising means for sliding the first stop lever along said rotating part between said first and second positions.
  • the first stop lever can particular include a peripheral groove, the means for moving the first lever then comprising a fork engaging in said groove.
  • the stop means retractable has a second stop lever cooperating with a end stop of first rotation, the first stop lever being likely to cause the second stop lever only when is in its first position.
  • the fork can be articulated around an axis of articulation.
  • the range can include a first and a second branches each of which has a region such as an engaging finger in said groove.
  • the first branch may include, at one end, a control finger constituting said means for making slide the first stop lever.
  • the post-setting mechanism may include a rigid box supporting the drive device, the retractable stop means and said rotary part.
  • the mechanism may include means for controlling, between steps a and c , an outward movement of the delivery means so as to effect said delivery of the ammunition and for controlling, between steps c and d , an outward movement of the jamming means so as to effect said jamming of the ammunition, then a return movement of the jamming means.
  • the mechanism comprises means for controlling, during step d , a return movement of the delivery means.
  • a feeding device a munition 50 comprises a stretcher 1 of semi-circular shape, the concavity is directed upwards and which is provided with a anti-extraction device 4, known per se, which is intended to prevent the ejection of the shell 50 during the rotation of the stretcher 1.
  • the stretcher 1 is movable in rotation about a single axis, which is the axis of rotation of a cylindrical part 11.
  • a support comprising on the one hand a perforated plate 22 at 26 which extends radially from the cylindrical part 11 to the stretcher 1 and on the other hand two lateral support elements 24 and 25 orthogonal to plate 22 and whose ends 24 'and 25' come enclose stretcher 1 so as to constitute a mechanical assembly rigid.
  • the stretcher 1 is rotated by a rotary actuator 6 to helical piston.
  • a chain backer 2 driven by a hydraulic motor and a cylinder linear clamp 3 are mounted on stretcher 1 and are integral with its rotation around the axis of the part 11.
  • the whole is powered by an electro-hydraulic block, itself controlled by an electric control console.
  • a lever 7 carrying a drive finger 18 is integral in rotation of the part 11, but its position along it is controlled by a fork 8 actuated by a stop cylinder 5.
  • This driving in rotation of the lever 7, regardless of its position longitudinal along the part 11, is obtained by grooves complementary 15 of an extension 11 'of the part 11, and of the lever 7, which are shown in FIGS. 8 and 9.
  • the finger 18 of the lever 7 allows to rotate in rotation until a damping stop 10 a second lever 9 carrying at its end 14 a stop finger 12.
  • lever 9 is recalled by its own weight or by a spring (not shown) in a low position where it is released from the stop 10 and comes to rest in its bottom dead center on a lower edge 16 of an opening of one of the edges 34 of a box rigid U-shaped support 30 having a bottom plate 31 and a second flange 33.
  • the box 30 stiffens the assembly and carries a U-shaped plate 36, whose branches 37 and 38 support the rotary actuator 6, the retractable stop mechanism 5, 7, 8, 9 and a end of the part 11, the other end of which is held by a wing 39 forming an extension of the bottom plate 31, which adjoins the ledge 34.
  • the shift mechanism then operates according to the following cycle:
  • a shell 50 is deposited in stretcher 1, which is in the insertion position shown in Figures 1 and 2. In this position, the chain repressor 2 is at rest. The linear cylinder of jam 3 is retracted rod, the stop cylinder 5 is retracted rod (see FIG. 7), which corresponds to the active position of the lever 7, and the rotary actuator 6 is at rest. The anti-extraction device 4 prevents the shell from being ejected during the first rotational movement of the stretcher 1.
  • a first rotation of angle ⁇ of the stretcher 1 is carried out around the axis of the part 11 from the position shown in the Figure 1 to the position shown in Figure 3, in which the arm 9, driven by the finger 18, is applied by its finger stop 12 against the damper stop 10.
  • the shell 50 sees its axis aligned with that of the breech chamber 40 of the barrel and the chain repeller 2 is in a position in which it can push back shell 50 from stretcher 1 to the cylinder head chamber 40.
  • This discharge stage is initiated by a position detector of stretcher 1 which controls the advance of the chain repressor 2.
  • a second position detector controls the output of the stopper cylinder rod 5, which has the effect to release finger 18 from its action on lever 9, which falls to its bottom dead center, and release the grooved lever 7 to allow it to continue its rotation without exerting any action on the lever 9.
  • the stretcher 1 then performs a second rotation of angle ⁇ , always under the action of the rotary actuator 6 left under pressure from the position shown in Figure 3 to the position shown in Figure 5.
  • the cylinder wedge 3 is brought into alignment with the cylinder head chamber 40 of the mouth to fire.
  • a position detector on stretcher 1 controls the exit of the rod 23 of the jamming cylinder 3 and locks in position firing the shell 50 in the forcing cone 60 of the chamber 40.
  • An electro-hydraulic device hydraulically connected to the rod 23 of the jack 3 controls, as soon as the oil flow drops, the re-entry of the rod 23.
  • a re-entry detector of the rod 23 controls then return the stretcher 1 to the starting position (figure 1) as well that the return of the repressor 2.
  • a last detector in the start position controls the retraction of the stop cylinder 5, which again positions the lever 7 in active position. The loading device is then ready for a new cycle.
  • the device which has been described above, allows a gain of time on the one hand due to the fact that the return of the repressor 2 can be done entirely in masked time and, on the other hand, that the time of return of rotation of the arm is faster than in the prior art thanks to the unique movement, which contributes to the reduction of time of a complete cycle and consequently improves the rate of fire of the equipment.
  • Figure 7 shows the lever 7 in its active position where the pin 18 rotates the lever 9. This position corresponds to the rod 82 position retracted from the stop cylinder 5.
  • the fork 8 has the general shape of an inverted U (see Figure 9) which has an upper central branch 84 and two lateral branches 83 and 85 which extend downward. At its upper part 88, which overcomes the central branch 84, a hinge 89 is arranged allowing the fork 8 to be movable in rotation about an axis horizontal perpendicular to the axis of rotation of the part 11.
  • the lower part of branch 83 has an extension 82 which ends with a finger 81 which engages in the rod 82, which allows control the movement of the fork 8.
  • the part median of branches 83 and 85 has extensions 83 and 87 engaging in a groove 71 of a cylindrical piece 72 extending the lever 7 along the axis of the part 11.
  • the fork 8 is thus movable between the active position of the lever 7 (in solid lines in FIG. 10) in which the finger 18 can rotate lever 9 and a second position making a angle with the vertical and in which, the jack 5 is in position rod 82 extended, finger 18 is moved (to the right in the figure 10) so as to be moved away from lever 9 (see the dotted lines at the figure 10).
  • Figure 8 also shows the various positions of the levers 7 and 9 and more particularly the three characteristic positions of the lever 7, namely the first starting position shown in line full, then, after the first rotation, the first position corresponding to the abutment of the lever 9 (also shown in dotted) then finally, the rotation pushing in the direction counterclockwise, the third position after a second rotation in which a rear extension 19 of the lever 7 abuts on a stop 13 indicating the end of the second rotation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (12)

  1. Munitionszuführmechanismus (30) in der Verschlußkammer (40) einer mittel- oder großkalibrigen Waffe mit einerseits einer durch eine Wippvorrichtung (6) in Drehbewegung versetzten Zuführvorrichtung (1), und andererseits zumindest einem Geschoßauswerfer (2) und einem Geschoßhalter (3), die nacheinander in Aktion treten, wobei Auswerfer (2) und Halter (3) sich zusammen mit der Zuführvorrichtung (1) eine Drehbewegung ausführen, letztere im Verlauf eines Munitionszuführvorgangs nacheinander eine erste Drehbewegung (a) ausführt, durch die zum einen die Munition nach der Achse des Verschlußkammers (40) eingeführt und zum anderen der Auswerfer zum Munitionsauswurf in Position gebracht wird, und anschließend eine weitere Drehbewegung (β), durch die der Halter in Position gebracht wird, damit die Munition in dem Führungskegel (60) verharrt, dadurch gekennzeichnet, daß er mit einem drehbar gelagerten zylindrischen Teil (11) ausgestattet ist, das die erste (α) und zweite (β) Drehbewegung der Zuführvorrichtung (1) um eine gleiche Rotationsachse ermöglicht, wobei diese ist mit einem die Drehbewegung der Zuführvorrichtung (1) in einer Lager entspreschend der Beendigung der ersten Drehung (α) stoppenden einfahrbaren Wippanschlag (7, 9) verbunden.
  2. Mechanismus nach Anspruch 1, dadurch gekennzeichnet, daß der einfahrbare Wippanschlag (7, 9) mit einer Wippvorrichtung (5, 82) versehen ist, die diesen Anschlag (7, 9) zwischen zwei Stellungen bewegt, in einer erste funktionsbereiten Stellung stoppt der Anschlag (7, 9) die Drehbewegung der Zuführvorrichtung (1) nach der Beendigung der ersten Drehbewegung (α), und in einer nicht funktionsbereiten zweiten Stellung befindet sich der Anschlag (7, 9) in Ruhestellung und beeinträchtigt die Drehbewegung der Zuführvorrichtung (1) nicht.
  3. Mechanismus nach Anspruch 2, dadurch gekennzeichnet, daß der Wippanschlag mit einem ersten Anschlaghebel (7) versehen ist, der insbesondere aufgrund der Hohlkehlen (15) im Vergleich zu dem erwähnten drehbar gelagerten Teil (11) der Länge nach bewegt wird, jedoch gemeinsam mit diesem Teil (11) eine Drehbewegung ausführt, und daß die Wippvorrichtung mit einem Zwischenstück (8) versehen ist, das den ersten Anschlaghebel längs des drehbar gelagerten Teils (11) in eine der erwähnten ersten und zweiten Stellungen bringt.
  4. Mechanismus nach Anspruch 3, dadurch gekennzeichnet, daß der erste Anschlaghebel (7) mit einer peripherischen Nut (71) versehen ist, und daß das Zwischenstück um den ersten Anschlaghebel zu verschieben mit einer Gabel (8) versehen ist, die in die erwähnte Nut (71) greift.
  5. Mechanismus nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, daß der Wippanschlag mit einem zweiten Anschlaghebel (9) versehen ist, der zusammen mit einem Anschlag (10) die Drehbewegung nach der ersten Drehbewegung stoppt, daß der erste Anschlaghebel (7) den zweiten Anschlaghebel (9) nur dann in Bewegung versetzt, wenn er (7) sich in der ersten erwähnten Stellungen befindet.
  6. Mechanismus nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, daß die Gabel (8) um einen Gelenkbolzen (89) gelagert ist.
  7. Mechanismus nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß die Gabel (8) mit einem ersten (83) und einem zweiten (85) Zacken versehen ist, die beide je ein fingerähnliches Teil (86, 87) aufweisen, das in die erwähnte Nut (71) greift.
  8. Mechanismus nach Anspruch 7, dadurch gekennzeichnet, daß die erste Zacke (83) an einem Ende mit einem Steuerzapfen (81) versehen ist, der das erwähnte Zwischenstück bildet, mit dem der erste Anschlaghebel (7) bewegt wird.
  9. Mechanismus nach einem der vorausgehenden Ansprüche, dadurch gekennzeichnet, daß er einen rigiden Behälter mit der Wippvorrichtung (6), dem Wippanschlag (7, 9) und dem drehbar gelagerten Teil (11) aufweist.
  10. Mechanismus nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, daß er eine Vorrichtung aufweist, die die nachstehende Abfolge der Drehbewegung des Zuführmechanismus (1) steuert:
    a) Bewegen der Wippvorrichtung (6) zur Ausführung der ersten Drehbewegung, wobei sich der Wippanschlaghebel (7, 9) in seiner Ausgangsstellung befindet;
    b) Bringen der Wippanschlaghebel (7, 9) in seine zweite Stellung;
    c) Bewegen der Wippvorrichtung (6) zur Ausführung der zweiten Drehbewegung;
    d) Bewegen der Wippvorrichtung (6) zur Ausführung der gegenläufigen zweiten und ersten Drehbewegung;
    e) Bringen der Wippanschlaghebel (7, 9) in seine Ausgangsstellung.
  11. Mechanismus nach Anspruch 10, dadurch gekennzeichnet, daß er ein Mittel aufweist, das während der Phasen a und c die Vorwärtsbewegung des Auswerfers (2) zum Auswurf der Munition (50) und während der Phasen c und d die Vorwärtsbewegung des Halters (3) zum Verharren der Munition (50) sowie auch das Zurückziehen des Halters (3) steuert.
  12. Mechanismus nach einem der Ansprüche 10 oder 11, dadurch gekennzeichnet, daß er ein Mittel aufweist, das während der Phase d das Zurückziehen des Auswerfers (2) steuert.
EP95401376A 1994-06-16 1995-06-13 Munitionszuführmechanismus Expired - Lifetime EP0687882B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9407355 1994-06-16
FR9407355A FR2721387B1 (fr) 1994-06-16 1994-06-16 Mécanisme de mise à poste d'une munition.

Publications (2)

Publication Number Publication Date
EP0687882A1 EP0687882A1 (de) 1995-12-20
EP0687882B1 true EP0687882B1 (de) 1999-05-19

Family

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Application Number Title Priority Date Filing Date
EP95401376A Expired - Lifetime EP0687882B1 (de) 1994-06-16 1995-06-13 Munitionszuführmechanismus

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US (1) US5563363A (de)
EP (1) EP0687882B1 (de)
DE (1) DE69509703T2 (de)
FR (1) FR2721387B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5773747A (en) * 1996-05-07 1998-06-30 United Defense, Lp Two-piece ammunition flick ram
US6073534A (en) * 1998-01-14 2000-06-13 General Dynamics Armament Systems, Inc. Transfer mechanism and method for uploading and downloading propellant charges and projectiles
FR2796713B1 (fr) 1999-07-22 2002-09-13 Giat Ind Sa Dispositif d'aide au chargement pour artillerie
US6513415B2 (en) * 2001-03-22 2003-02-04 United Defense Lp Propellant retention device
AU2008302516B2 (en) 2007-09-17 2013-09-19 Tecpharma Licensing Ag Insertion devices for infusion devices
IT1400863B1 (it) * 2010-06-22 2013-07-02 Oto Melara Spa Sistema di evacuazione bossoli
DE102017107442B4 (de) * 2017-04-06 2021-03-18 Krauss-Maffei Wegmann Gmbh & Co. Kg Vorrichtung zum Laden einer Rohrwaffe mit Munitionskörpern

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1682323A (en) * 1924-06-26 1928-08-28 Thomas A Conlon Mechanical loader for cannon
GB578742A (en) * 1941-08-20 1946-07-10 Desmond Walter Molins Improvements in or relating to breech loading mechanism for ordnance
SE413264B (sv) * 1976-03-31 1980-05-12 Bofors Ab Laddningsanordning vid ett eldvapen
US4183281A (en) * 1976-03-31 1980-01-15 Aktiebolaget Bofors Method of and device for loading a firearm
FR2448121A1 (fr) * 1979-02-05 1980-08-29 France Etat Dispositif de mise a poste de l'obus pour materiel d'artillerie
US4457209A (en) * 1980-08-27 1984-07-03 Fmc Corporation Automated large caliber ammunition handling system
EP0051119B1 (de) * 1980-08-27 1985-02-06 Fmc Corporation Selbsttätiges Ladesystem für grosskalibrige Munition
DE3306935A1 (de) * 1983-02-28 1984-08-30 Rheinmetall GmbH, 4000 Düsseldorf Ladeschalenanordnung an einer rohrwaffe

Also Published As

Publication number Publication date
EP0687882A1 (de) 1995-12-20
FR2721387B1 (fr) 1996-08-14
US5563363A (en) 1996-10-08
DE69509703T2 (de) 1999-10-14
DE69509703D1 (de) 1999-06-24
FR2721387A1 (fr) 1995-12-22

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