EP0111471A1 - Mortar with shock absorber - Google Patents

Mortar with shock absorber Download PDF

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Publication number
EP0111471A1
EP0111471A1 EP83890218A EP83890218A EP0111471A1 EP 0111471 A1 EP0111471 A1 EP 0111471A1 EP 83890218 A EP83890218 A EP 83890218A EP 83890218 A EP83890218 A EP 83890218A EP 0111471 A1 EP0111471 A1 EP 0111471A1
Authority
EP
European Patent Office
Prior art keywords
spring
shock absorber
housing
shock
absorber
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
Application number
EP83890218A
Other languages
German (de)
French (fr)
Inventor
Heribert Dipl.-Ing. Sidan
Dietwin Müller
Bernd Kienzl
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.)
Vereinigte Edelstahlwerke AG
Original Assignee
Vereinigte Edelstahlwerke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vereinigte Edelstahlwerke AG filed Critical Vereinigte Edelstahlwerke AG
Publication of EP0111471A1 publication Critical patent/EP0111471A1/en
Ceased 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
    • F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes
    • F41A25/10—Spring-operated systems

Definitions

  • the invention relates to a grenade launcher with a shock absorber, the housing of which is arranged between the launcher tube and the tube support or straightening device embodied as a bipod or tripod, and the at least one shock absorber spring which counteracts the recoil and is optionally hydraulically supported and mounted in a spring housing displaceable in the shock absorber housing having.
  • shock absorbers are not intended to inhibit a pipe return caused by the shot, because the launcher pipe is basically only rotatably mounted on a base plate, but rather serve the impact effects of the recoil caused by a projectile being fired, particularly on the frame and the straightening device to minimize and to avoid post-shot messages caused by unwanted changes in position.
  • a shock absorber for a grenade launcher is known from US Pat. No. 2,732,766, in which a spring is arranged in the shock absorber housing, a guide rod being provided hen, which is guided on one side in the shock absorber housing and at the other end carries a disc on which a spring is supported.
  • This plate also cooperates with a cap located at the end of the shock absorber housing, in which a rubber buffer element is provided.
  • Such a shock absorber is not suitable for large loads, with part of the recoil forces being converted into friction and heat by the spring guide and the spring guide rod.
  • the plate can be tilted, so that the grenade launcher tube is only delayed in the rest position.
  • a compressed gas cushion, disc springs, a block made of rubber or another highly elastic material or the like can also serve as such a pressure element;
  • a coil spring has proven to be particularly durable.
  • the outer diameter of the coil spring projects beyond that of the shock absorber spring, which provides a large-area force transmission for braking. It is also advantageous if the outer diameter of the coil spring corresponds approximately to the inside width of the shock absorber housing, so that the shock absorber housing can serve as a guide for the coil spring.
  • a spring housing 2 is suitably inserted in the essentially hollow cylindrical shaped shock absorber housing 1, which is connected in pairs to a second, analog shock absorber via a clamp arrangement (not shown in detail) at la with the launcher tube (not shown), a spring housing 2 is suitably inserted. Both housings are connected by means of a centrally arranged bolt 3, a spring guide ring 4 and 5 being provided in each of the two end regions of the spring housing 2, on which the shock absorber spring 6 rests and the spring ends are supported between their annular projections 4 'and 5'.
  • a compression spring 7 is positioned which serves to inhibit the relaxation movement of the shock absorber spring 6 in the final phase.
  • the outer diameter of the compression spring 7 is significantly larger than that of the long shock absorber spring 6 and placed on the inside width of the housing 1, which is understood to mean the elongated cavity in which the two housings 1 and 2 can move relative to one another.
  • the attachment to the straightening device which is not shown in more detail and is mounted on a bipod, is provided at 2a.
  • a number of fasteners should also be mentioned, namely the ring nut 8 connected to a lock washer 9, the fastening screw 10 and the cylindrical pin 11.
  • the cavities in which the springs 6 and 7 are, with hydraulic oil and by appropriate dimensioning or design of the projection 4 'as a throttle valve both lubrication of the sliding parts and support of the damping effect of the shock absorber spring 6 can be achieved.
  • a seal 12 is provided for the lubricant or hydraulic oil.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Vibration Dampers (AREA)

Abstract

The invention relates to a grenade launcher with shock absorber, the housing (1) of which is arranged between the launcher tube and the bipod or tripod tube support or aiming device and which has at least one recoil-counteracting, if appropriate hydraulically assisted shock-absorber spring (6) mounted in the spring housing (2) which is displaceable in the shock-absorber housing (1). In the shock-absorber housing (1) an elastically acting thrust element is arranged which acts in the opposite direction to the shock-absorber spring (6) and inhibits its relaxing movement in the final phase and which engages on the spring housing (2).

Description

Die Erfindung betrifft einen Granatwerfer mit einem Stoßdämpfer, dessen Gehäuse zwischen dem Werferrohr und der als Zwei- oder Dreibein ausgebildeten Rohrabstützung bzw. der Richteinrichtung angeordnet ist, und der zumindest eine dem Rückstoß entgegenwirkende, gegebenenfalls hydraulisch unterstützte, in einem im Stoßdämpfergehäuse verschieblichen Federgehäuse gelagerte Stoßdämpferfeder aufweist.The invention relates to a grenade launcher with a shock absorber, the housing of which is arranged between the launcher tube and the tube support or straightening device embodied as a bipod or tripod, and the at least one shock absorber spring which counteracts the recoil and is optionally hydraulically supported and mounted in a spring housing displaceable in the shock absorber housing having.

Zum Unterschied von anderen Waffenarten, z.B. Geschützen, sind bei Granatwerfern Stoßdämpfer nicht dazu bestimmt, einen vom Schuß verursachten Rohrrücklauf zu hemmen, denn das Werferrohr ist grundsätzlich auf einer Bodenplatte bloß drehbeweglich gelagert, sondern dienen dazu, die Stoßwirkungen des vom Abschuß eines Geschoßes bewirkten Rückstoßes insbesondere auf das Gestell und die Richteinrichtung zu minimieren und ein durch ungewollte Lageveränderungen erzwungenes Nachrichten nach dem Schuß zu vermeiden.In contrast to other types of weapons, e.g. Guns, in the case of grenade launchers, shock absorbers are not intended to inhibit a pipe return caused by the shot, because the launcher pipe is basically only rotatably mounted on a base plate, but rather serve the impact effects of the recoil caused by a projectile being fired, particularly on the frame and the straightening device to minimize and to avoid post-shot messages caused by unwanted changes in position.

Es hat sich gezeigt, daß trotz einer etwa durch paarweise Anordnung zweier Stoßdämpfer erzielbaren Kräfteverteilung bei ungünstigen Bodenverhältnissen der Umstand eintreten kann, daß zwar die nötige Dämpfung der Stoßwirkung durch das, gegebenenfalls mit einer hydraulischen Dämpfung kombinierte Zusammenpressen einer oder mehrerer, entsprechend dimensionierter Stoßdämpferfedern erreicht wird, daß sich aber die hohe Belastung dieser Federn bei deren Entspannung ungünstig auswirkt und nicht bloß starken Materialverschleiß, sondern auch ungewollte Lageveränderungen des Granatwerfers bewirkt.It has been shown that despite a distribution of forces that can be achieved by pairing two shock absorbers in unfavorable ground conditions, the fact can occur that the necessary damping of the impact effect is achieved by compressing one or more appropriately dimensioned shock absorber springs, optionally combined with hydraulic damping that, however, the high load of these springs has an unfavorable effect on their relaxation and does not only cause excessive material wear, but also unwanted changes in position of the grenade launcher.

Aus der US-PS 2,732.766 wird ein Stoßdämpfer für einen Granatwerfer bekannt, bei dem im Stoßdämpfergehäuse eine Feder angeordnet ist, wobei eine Führungsstange vorgesehen ist, die an einer Seite im Stoßdämpfergehäuse geführt und am anderen Ende eine Scheibe trägt, an welcher sich eine Feder abstützt. Diese Platte kooperiert weiters mit einem am Ende des Stoßdämpfergehäuses angeordneten Kappe, in welcher ein Gummipufferelement vorgesehen ist. Ein derartiger Stoßdämpfer ist für große Beanspruchungen nicht geeignet, wobei durch die Federführung und die Federführungsstange ein Teil der Rückstoßkräfte in Reibung und Wärme umgesetzt wird. Weiters kann es zu einer Verkantung der Platte kommen, sodaß das Granatwerferrohr erst verspätet in Ruheposition zurückgestellt wird.A shock absorber for a grenade launcher is known from US Pat. No. 2,732,766, in which a spring is arranged in the shock absorber housing, a guide rod being provided hen, which is guided on one side in the shock absorber housing and at the other end carries a disc on which a spring is supported. This plate also cooperates with a cap located at the end of the shock absorber housing, in which a rubber buffer element is provided. Such a shock absorber is not suitable for large loads, with part of the recoil forces being converted into friction and heat by the spring guide and the spring guide rod. Furthermore, the plate can be tilted, so that the grenade launcher tube is only delayed in the rest position.

Mit Hilfe der vorliegenden Erfindung können diese Nachteile behoben werden, und dies gelingt in der Weise, daß im Stoßdämpfergehäuse ein im Gegensinn zur Stoßdämpferfeder wirkendes und deren Entspannungsbewegung in der Endphase hemmendes, elastisch wirkendes, am Federgehäuse angreifendes Druckelement angeordnet ist, das bevorzugt als Druckfeder ausgebildet ist.With the help of the present invention, these disadvantages can be remedied, and this is accomplished in such a way that an elastically acting pressure element acting on the spring housing and acting in the opposite direction to the shock absorber spring and inhibiting its relaxation movement in the final phase is arranged, which is preferably designed as a compression spring is.

Als solches Druckelement kann auch ein komprimierter Gaspolster, Tellerfedern, ein Klotz aus Gummi oder einem anderen hochelastischen Material od. dgl. dienen; als besonders langlebig hat sich eine Schraubenfeder erwiesen. Es wird in diesem Falle bevorzugt, daß der äußere Durchmesser der Schraubenfeder denjenigen der Stoßdämpferfeder überragt, womit eine großflächige Kräfteübertragung zum Abbremsen gegeben ist. Auch ist es vorteilhaft, wenn der äußere Durchmesser der Schraubenfeder etwa der lichten Weite des Stoßdämpfergehäuses entspricht, sodaß das Stoßdämpfergehäuse als Führung für die Schraubenfeder dienen kann.A compressed gas cushion, disc springs, a block made of rubber or another highly elastic material or the like can also serve as such a pressure element; A coil spring has proven to be particularly durable. In this case, it is preferred that the outer diameter of the coil spring projects beyond that of the shock absorber spring, which provides a large-area force transmission for braking. It is also advantageous if the outer diameter of the coil spring corresponds approximately to the inside width of the shock absorber housing, so that the shock absorber housing can serve as a guide for the coil spring.

Die Erfindung wird nun unter Bezugnahme auf die ein Ausführungsbeispiel im Längsschnitt zeigende Figur nähererläutert.The invention will now be explained in more detail with reference to the figure showing an embodiment in longitudinal section.

In dem im wesentlichen hohlzylindrisch geformten Stoßdämpfergehäuse 1, das mit einem zweiten, analog aufgebauten Stoßdämpfer paarweise über eine nicht näher gezeigte Schellenanordnung bei la mit dem nicht dargestellten Werferrohr verbunden ist, ist ein Federgehäuse 2 passend eingesetzt. Beide Gehäuse sind mittels eines zentral angeordneten Bolzens 3 verbunden, wobei in den beiden Endbereichen des Federgehäuses 2 jeweils ein Federführungsring 4 und 5 vorgesehen ist, auf denen die Stoßdämpferfeder 6 aufliegt und zwischen deren ringförmigen Vorsprüngen 4' bzw. 5' die Federenden abgestützt sind. In dem vor dem Federgehäuse 2 im, der Darstellung entsprechenden, entspannten Zustand der Feder 6 verbleibenden freien Innenraum des Stoßdämpfergehäuses 1 ist eine Druckfeder 7 positioniert, die dazu dient,.die Entspannungsbewegung der Stoßdämpferfeder 6 in der Endphase zu hemmen. Der äußere Durchmesser der Druckfeder 7 ist deutlich größer als derjenige der langen Stoßdämpferfeder 6 und auf die lichte Weite des Gehäuses l abgestellt, worunter der langgestreckte Hohlraum verstanden wird, in dem sich die beiden Gehäuse 1 und 2 relativ zueinander bewegen können. Im freiliegenden ringförmig verbreiterten Endbereich des Federgehäuses 2 ist bei 2a die Befestigung an der nicht näher gezeigten, an einem Zweibein montierten Richteinrichtung vorgesehen. Bloß der Vollständigkeit wegen sollen auch noch eine Reihe von Befestigungsmitteln erwähnt werden, nämlich die mit einer Sicherungsscheibe 9 in Verbindung stehende Ringmutter 8, die Befestigungsschraube 10 und der Zylinderstift 11. Gegebenenfalls kann durch eine Füllung der Hohlräume, in denen sich die Federn 6 und 7 befinden, mit Hydrauliköl sowie durch eine dementsprechende Dimensionierung bzw. Ausgestaltung des Vorsprunges 4' als Drosselventil sowohl eine Schmierung der gleitenden Teile als auch eine Unterstützung der Dämpfungswirkung der Stoßdämpferfeder 6 erreicht werden. Im Ringbereich von la ist eine Dichtung 12 für das Schmiermittel bzw. Hydrauliköl vorgesehen.In the essentially hollow cylindrical shaped shock absorber housing 1, which is connected in pairs to a second, analog shock absorber via a clamp arrangement (not shown in detail) at la with the launcher tube (not shown), a spring housing 2 is suitably inserted. Both housings are connected by means of a centrally arranged bolt 3, a spring guide ring 4 and 5 being provided in each of the two end regions of the spring housing 2, on which the shock absorber spring 6 rests and the spring ends are supported between their annular projections 4 'and 5'. In the free interior of the shock absorber housing 1 which remains in front of the spring housing 2 in the relaxed state of the spring 6 corresponding to the illustration, a compression spring 7 is positioned which serves to inhibit the relaxation movement of the shock absorber spring 6 in the final phase. The outer diameter of the compression spring 7 is significantly larger than that of the long shock absorber spring 6 and placed on the inside width of the housing 1, which is understood to mean the elongated cavity in which the two housings 1 and 2 can move relative to one another. In the exposed, annularly widened end region of the spring housing 2, the attachment to the straightening device, which is not shown in more detail and is mounted on a bipod, is provided at 2a. For the sake of completeness, a number of fasteners should also be mentioned, namely the ring nut 8 connected to a lock washer 9, the fastening screw 10 and the cylindrical pin 11. If necessary, the cavities in which the springs 6 and 7 are, with hydraulic oil and by appropriate dimensioning or design of the projection 4 'as a throttle valve both lubrication of the sliding parts and support of the damping effect of the shock absorber spring 6 can be achieved. In the ring area of la, a seal 12 is provided for the lubricant or hydraulic oil.

Claims (4)

1. Granatwerfer mit Stoßdämpfer, dessen Gehäuse (1) zwischen dem Werferrohr und der als Zwei- oder Dreibein ausgebildeten Rohrabstützung bzw. der Richteinrichtung angeordnet ist und der zumindest eine dem Rückstoß entgegenwirkende, gegebenenfalls hydraulisch unterstützte, in einem im Stoßdämpfergehäuse (1) verschieblichen Federgehäuse (2) gelagerte Stoßdämpferfeder (6) aufweist, dadurch gekennzeichnet, daß im Stoßdämpfergehäuse (1) ein im Gegensinn zur Stoßdämpferfeder (6) wirkendes und deren Entspannungsbewegung in der Endphase hemmendes, elastisch wirkendes am Federgehäuse (2) angreifendes Druckelement angeordnet ist.1. Grenade launcher with shock absorber, the housing (1) of which is arranged between the launcher tube and the tube support or straightening device designed as a bipod or tripod, and the at least one, optionally hydraulically supported, counteracting the recoil, in a spring housing which is displaceable in the shock absorber housing (1) (2) mounted shock absorber spring (6), characterized in that in the shock absorber housing (1) a pressure element acting in the opposite direction to the shock absorber spring (6) and inhibiting its relaxation movement in the final phase, acting elastically on the spring housing (2). 2. Granatwerfer nach Anspruch 1, dadurch gekennzeichnet, daß das elastisch wirkende Druckelement als Druckfeder, insbesondere Schraubenfeder (7) ausgebildet ist.2. grenade launcher according to claim 1, characterized in that the elastically acting pressure element is designed as a compression spring, in particular helical spring (7). 3. Granatwerfer nach Anspruch 2, dadurch gekennzeichnet, daß der äußere Durchmesser der Schraubenfeder (7) denjenigen der Stoßdämpferfeder (6) überragt.3. grenade launcher according to claim 2, characterized in that the outer diameter of the coil spring (7) projects beyond that of the shock absorber spring (6). 4. Granatwerfer nach den Ansprüchen 2 und 3, dadurch gekennzeichnet, daß der äußere Durchmesser der Schraubenfeder (7) etwa der lichten Weite des Stoßdämpfergehäuses (1) entspricht.4. grenade launcher according to claims 2 and 3, characterized in that the outer diameter of the coil spring (7) corresponds approximately to the inside width of the shock absorber housing (1).
EP83890218A 1982-12-09 1983-12-02 Mortar with shock absorber Ceased EP0111471A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT446982A ATA446982A (en) 1982-12-09 1982-12-09 Grenade launcher with shock absorber
AT4469/82 1982-12-09

Publications (1)

Publication Number Publication Date
EP0111471A1 true EP0111471A1 (en) 1984-06-20

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ID=3564435

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Application Number Title Priority Date Filing Date
EP83890218A Ceased EP0111471A1 (en) 1982-12-09 1983-12-02 Mortar with shock absorber

Country Status (5)

Country Link
EP (1) EP0111471A1 (en)
AT (1) ATA446982A (en)
ES (1) ES8501114A1 (en)
FI (1) FI834480A (en)
YU (1) YU238983A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110895117A (en) * 2019-12-27 2020-03-20 中国人民解放军32382部队 Bidirectional limit buffer device for artillery

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1730800A (en) * 1927-02-15 1929-10-08 Brandt Edgar William Ordnance material
FR1172438A (en) * 1957-03-05 1959-02-10 Luxembourg Brev Participations Improvements to systems such as those for absorbing recoil energy from firearms
US2879694A (en) * 1953-12-28 1959-03-31 Olin Mathieson Supporting means and recoil spring for a gun mount
US2938433A (en) * 1956-12-28 1960-05-31 Hotchkiss Brandt Soc Biped mortar mount
US3501997A (en) * 1968-03-21 1970-03-24 Us Army Dynamic force attenuator for a mortar

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1730800A (en) * 1927-02-15 1929-10-08 Brandt Edgar William Ordnance material
US2879694A (en) * 1953-12-28 1959-03-31 Olin Mathieson Supporting means and recoil spring for a gun mount
US2938433A (en) * 1956-12-28 1960-05-31 Hotchkiss Brandt Soc Biped mortar mount
FR1172438A (en) * 1957-03-05 1959-02-10 Luxembourg Brev Participations Improvements to systems such as those for absorbing recoil energy from firearms
US3501997A (en) * 1968-03-21 1970-03-24 Us Army Dynamic force attenuator for a mortar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110895117A (en) * 2019-12-27 2020-03-20 中国人民解放军32382部队 Bidirectional limit buffer device for artillery

Also Published As

Publication number Publication date
ATA446982A (en) 1992-12-15
FI834480A0 (en) 1983-12-07
YU238983A (en) 1987-10-31
FI834480A (en) 1984-06-10
ES527870A0 (en) 1984-11-01
ES8501114A1 (en) 1984-11-01

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Inventor name: KIENZL, BERND

Inventor name: MUELLER, DIETWIN

Inventor name: SIDAN, HERIBERT, DIPL.-ING.