EP0090917B1 - Sliding-wedge breech lock mechanism - Google Patents

Sliding-wedge breech lock mechanism Download PDF

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Publication number
EP0090917B1
EP0090917B1 EP83101007A EP83101007A EP0090917B1 EP 0090917 B1 EP0090917 B1 EP 0090917B1 EP 83101007 A EP83101007 A EP 83101007A EP 83101007 A EP83101007 A EP 83101007A EP 0090917 B1 EP0090917 B1 EP 0090917B1
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EP
European Patent Office
Prior art keywords
lever
opening
manual opening
opener
opening 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
Application number
EP83101007A
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German (de)
French (fr)
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EP0090917A2 (en
EP0090917A3 (en
Inventor
Heinz Günter Breuer
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.)
Rheinmetall Industrie AG
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Rheinmetall GmbH
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Publication date
Application filed by Rheinmetall GmbH filed Critical Rheinmetall GmbH
Publication of EP0090917A2 publication Critical patent/EP0090917A2/en
Publication of EP0090917A3 publication Critical patent/EP0090917A3/en
Application granted granted Critical
Publication of EP0090917B1 publication Critical patent/EP0090917B1/en
Expired 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/02—Block action, i.e. the main breech opening movement being transverse to the barrel axis

Definitions

  • the invention relates to a barrel weapon according to the preamble of claim 1.
  • the hand release lever In the case of automatically moving opening and closing devices, it is necessary to carry out the wedge movement manually using a hand release lever before the first shot or in the event of faults. To open the locking wedge, the hand release lever must overcome not only the wedge weight and the frictional forces, but also the force of a spring, which is biased for the closing movement of the locking wedge.
  • a manual opener is used to avoid long lever lengths and swivel ranges, as a ratchet working in a small swivel range together with an additional transmission gearbox, but with the disadvantages that a Loss of time arises due to the large number of strokes to be carried out and in order to be able to hold the locking wedge, an additional safety device is required, which must be switched off again after each complete opening of the locking wedge.
  • This complex opening and closing device which consists of a large number of individual parts, has the further disadvantage that a jamming closure can only be closed with a special tool.
  • the object of the invention is to provide a simple construction in the construction consisting of a few parts for a barrel weapon of the type mentioned for the opening and closing movement of a breech wedge, in which the opening movement by hand in a small angle of rotation without overcoming a hand release lever Spring force is easy to carry out and after returning the hand opener lever to its rest position, the locking wedge can automatically take the locking position, and the hand opening lever should enable an automatic sequence of the locking wedge movements together with the device.
  • the invention enables a pre-tensionable piston-cylinder unit to be accommodated by means of a hollow body which is designed as a hollow body and is simple in construction, so that when the locking wedge is opened from the locking position during a direct pivoting movement of the hand opening lever about the opening shaft, no pretensioning force of the springs is required for the closing stroke of the locking wedge.
  • the piston-cylinder unit necessary for the closing stroke is integrated within the hand opener lever, the springs in the piston-cylinder unit are preloaded when the hand opener lever is returned to its rest position, so that only the frictional forces have to be overcome for the opening of the locking wedge in addition to the wedge weight.
  • the advantageous distribution of the spring pretensioning force on the return swing stroke of the hand opener lever allows for a favorable distribution of the low hand forces that arise during the opening and closing by opening the locking wedge during a single swing stroke in a small swivel range and still allows, with a space-saving simple arrangement consisting of a few parts, an uncomplicated, fully automatic operation of the opening and closing device of the locking wedge.
  • the hand release lever is designed as a thin-walled tube having an oval cross-section and widening conically towards the lever attached to the opening shaft, the shape of which gives the hand release lever stability in addition to a spacious interior and a light design of everything, as well as represents a safety protection against the movable piston-cylinder unit arranged in the interior.
  • a favorable position and swivel range adjustment during the expansion stroke of the piston-cylinder unit which can be swiveled via a lever around the opener shaft makes it possible to keep the torque which can be transmitted to the opener shaft constant in a region beyond half the swivel-back range of the lever . Due to the torque, which does not decrease, especially in the acceleration phase of the closing movement of the locking wedge, the locking wedge is moved faster into the locking position and the overall closing time is shortened as a result.
  • the locking wedge can be closed to take up the ready-to-fire position.
  • Ice on the bottom piece of the unlockable handle represents a secure fixation of the swiveling end of the hand opener lever, which is particularly advantageous during the automatic operation, a stable storage.
  • a hand opener lever 1 is shown as a hollow body 2 rotatable about an opening shaft 5, the interior 3 of which receives a piston-cylinder unit 4.
  • the piston-cylinder unit 4 is pivotally arranged with its cylinder 15 by means of fastening means 17 in the hollow body 2, while the end 18 of the piston 16 protruding from the piston-cylinder unit 4 of the piston 16, which is displaceable in its longitudinal axis, is pivotably connected by means of fastening means 17 to a lever 6 seated firmly on the opening shaft 5.
  • Preloadable springs 7 are arranged within the piston-cylinder unit 4, which are relaxed during the assumption of the starting position 11 and pretensioned when the end position 8 is assumed.
  • the lever 6 rests against a system designed as a stop surface 19 on the hand opener lever. Via the opening lever 10, the locking wedge 9 can be opened and closed during the changing rotational movement of the opening shaft 5.
  • the lever 6 located in the opening 14 of the hand opener lever 1, pivoted about the axis 20 of the opener shaft 5 in the end position 8, can be swiveled up by the hand opener lever 1, which is unlocked by a displaceable handle 22 from its rest position 12 on the base piece 23 by means of an engaging locking bolt 21 be pivoted back into the starting position 11.
  • Figure 2 illustrates the arrangement of the thrust lever 24 on the opener shaft 5 mounted in the base piece 23, the representation of the bearing of the lever 6 and the manual opener lever 1 and the piston-cylinder unit 4 connected to the lever 6 by means of fastening means 17 with the opening shaft 5 a fixed connection incoming opening lever 10 a form fit.
  • FIG. 3 shows the locked position of the hand opener lever 1, in the handle 22 a positive connection with the locking fork 25 arranged on the base piece 23 is established. By moving the longitudinally displaceable handle 22, it can be unlocked.
  • the hand release lever 1 designed as a 'hollow body 2' has assumed a cross-sectional profile of a tube 13 which corresponds to these parameters, as illustrated in FIG.
  • the closing movement of the locking wedge 9 takes place via the tensioned piston-cylinder unit 4, the lever 6 and the opening lever 10, and from the beginning, in a certain range of movement, an equally large torque acts on the opening lever 10 for the movement of the locking wedge 9.
  • the wedge 9 is opened automatically during the pipe advance. While the hand opener lever 1 remains locked in its rest position 12 on the base piece 23, the opening shaft 5 is rotated via the start lever 24 and the closing wedge 9 is opened by the transmission of the rotary movement to the opening lever 10 engaging in the locking wedge 9. By rotating the opening shaft 5 and moving the lever 6 from the initial position 11 into the end position 8, the springs 7 are pretensioned during the longitudinal movement of the piston 18.
  • a locking wedge 9 is difficult to close, or if it remains stuck between the end position 8 and the starting position 11 of the lever 6, the lock can still be closed by hand in that the The hand release lever 1 is unlocked by the handle 22 and swung up until the stop surface 19 abuts the lever 6, and a rigid connection of the hand release lever 1 with the lever 6 can be established by engaging the locking bolt 21.
  • the locking wedge 9 is closed via the opener shaft 5 and the opener lever 10. Because the lever 6 and the piston 16 do not change their position relative to one another during this movement process, no additional forces occur by the springs 7 when closing by hand.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lock And Its Accessories (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Description

Die Erfindung betrifft eine Rohrwaffe nach dem Oberbegriff des Patentanspruches 1.The invention relates to a barrel weapon according to the preamble of claim 1.

Bei automatisch bewegten Öffnungs- und Schließeinrichtungen ist es notwendig, vor dem 1. Schuß oder bei Störungen die Veschlußkeilbewegung mittels eines Handöffnerhebels manuell durchzuführen. Zur Öffnung des Verschlußkeiles muß dabei der Handöffnerhebel neben dem Keilgewicht und den Reibkräften nach die Kraft einer Feder, die dabei für die Schließbewegung des Verschlußkeiles vorgespannt wird, überwinden. Zur Überwindung dieser vor allem durch die für die Vorspannung der Feder benötigten von Hand aufzubringenden hohen Kräfte wird ein Handöffnerheben, um große Hebellängen und Schwenkbereiche zu vermeiden, als in einem kleinen Schwenkbereich arbeitende Ratsche zusammen mit einem zusätzlichen Übersetzungsgetriebe jedoch mit den Nachteilen eingesetzt, daß ein Zeitverlust durch die Vielzahl der durchzuführenden Hübe entsteht und um den Verschlußkeil halten zu können, zusätzlich eine Fangvorrichtung erforderlich wird, die nach jeder vollständigen Öffnung des Verschlußkeiles wieder abgeschaltet werden muß. Bei dieser aus einer Vielzahl von Einzelteilen bestehenden aufwendigen Öffnungs- und Schließvorrichtung wirkt sich weiter nachteilig aus, daß ein klemmender Verschluß nur mit einem Sonderwerkzeug geschlossen werden kann.In the case of automatically moving opening and closing devices, it is necessary to carry out the wedge movement manually using a hand release lever before the first shot or in the event of faults. To open the locking wedge, the hand release lever must overcome not only the wedge weight and the frictional forces, but also the force of a spring, which is biased for the closing movement of the locking wedge. To overcome this, especially by the high forces to be applied by hand for the pretensioning of the spring, a manual opener is used to avoid long lever lengths and swivel ranges, as a ratchet working in a small swivel range together with an additional transmission gearbox, but with the disadvantages that a Loss of time arises due to the large number of strokes to be carried out and in order to be able to hold the locking wedge, an additional safety device is required, which must be switched off again after each complete opening of the locking wedge. This complex opening and closing device, which consists of a large number of individual parts, has the further disadvantage that a jamming closure can only be closed with a special tool.

Ein weiterer die Verschlußkeilbewegung auslösender Handöffnerhebel ist durch die US-A-3362292 bekannt geworden, der gegen die Kraft einer in der Öffnerwelle angeordneten Drehstabfeder den Verschlußkeil öffnen muß. Diese ebenfalls aus vielen Einzelteilen bestehende aufwendige Konstruktion ist darüber hinaus mit dem Nachteil behaftet, daß durch die inneren Reibverluste, der aus einer Vielzahl übereinander gestapelter Elemente bestehenden Drehstabfeder, die nutzbare Federkraft reduziert oder evtl. aufgehoben wird.Another hand release lever which triggers the locking wedge movement is known from US-A-3362292, which must open the locking wedge against the force of a torsion bar spring arranged in the opening shaft. This complex construction, which also consists of many individual parts, also has the disadvantage that the usable spring force is reduced or possibly canceled out by the internal friction losses, the torsion bar spring consisting of a plurality of stacked elements.

Aufgabe der Erfindung ist es, bei einer Rohrwaffe der eingangs genannten Art, für die Öffnungs- und Schließbewegung eines Verschlußkeiles eine in der Bauweise aus wenigen Teilen bestehende einfache Einrichtung bereitzustellen, bei der über einen Handöffnerhebel in einem kleinen Drehwinkelbereich die Öffnungsbewegung von Hand ohne Überwindung einer Federkraft leicht durchführbar ist und nach der Rückführung des Handöffnerhebels in seine Ruhelage der Verschlußkeil eine selbstätige Einnahme der Verschlußstellung durchführen kann, sowie der Handöffnerhebel einen automatischen Ablauf der Verschlußkeilbewegungen gemeinsam mit der Einrichtung ermöglichen soll.The object of the invention is to provide a simple construction in the construction consisting of a few parts for a barrel weapon of the type mentioned for the opening and closing movement of a breech wedge, in which the opening movement by hand in a small angle of rotation without overcoming a hand release lever Spring force is easy to carry out and after returning the hand opener lever to its rest position, the locking wedge can automatically take the locking position, and the hand opening lever should enable an automatic sequence of the locking wedge movements together with the device.

Gelöst wird diese Aufgabe durch die im Kennzeichen des Anspruches 1 angegebene Erfindung.This object is achieved by the invention specified in the characterizing part of claim 1.

Die Erfindung ermöglicht durch einen als Hohlkörper ausgebildeten, im Aufbau einfachen Handöffnerhebel die Aufnahme einer vorspannbaren Kolbenzylindereinheit, wodurch beim Öffnen des Veschlußkeiles aus der Verschlußstellung während einer direkten Schwenkbewegung des Handöffnerhebels um die Öffnerwelle keine für den Schließhub des Verschlußkeiles notwendige Vorspannkraft der Federn aufzubringen ist. Dadurch, daß die für den Schließhub notwendige Kolbenzylindereinheit innerhalb des Handöffnerhebels integriert angeordnet ist, werden erste beim Rückhub des Handöffnerhebels in seine Ruhelage die in der Kolbenzylindereinheit befindlichen Federn vorgespannt, so daß für die Öffnung des Verschlußkeiles neben dem Keilgewicht lediglich die Reibkräfte zu überwinden sind. Die vorteilhafte Verteilung der Federvorspannkraft auf den Rückschwenkhub des Handöffnerhebels gestattet bei einer günstigen Aufteilung der beim Auf- und Zuschwenken entstehenden niedrigen Handkräfte dur Öffnung des Verschlußkeiles während eines einzigen Schwenkhubes in einem kleinen Schwenkbereich und erlaubt dennoch, bei einer raumsparenden aus wenigen Teilen bestehenden einfachen Anordnung, einen unkompliziert verlaufenden vollautomatischen Betrieb der Öffnungs- und Schließeinrichtung des Verschlußkeiles.The invention enables a pre-tensionable piston-cylinder unit to be accommodated by means of a hollow body which is designed as a hollow body and is simple in construction, so that when the locking wedge is opened from the locking position during a direct pivoting movement of the hand opening lever about the opening shaft, no pretensioning force of the springs is required for the closing stroke of the locking wedge. Characterized in that the piston-cylinder unit necessary for the closing stroke is integrated within the hand opener lever, the springs in the piston-cylinder unit are preloaded when the hand opener lever is returned to its rest position, so that only the frictional forces have to be overcome for the opening of the locking wedge in addition to the wedge weight. The advantageous distribution of the spring pretensioning force on the return swing stroke of the hand opener lever allows for a favorable distribution of the low hand forces that arise during the opening and closing by opening the locking wedge during a single swing stroke in a small swivel range and still allows, with a space-saving simple arrangement consisting of a few parts, an uncomplicated, fully automatic operation of the opening and closing device of the locking wedge.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung gehen aus den Unter ansprüchen hervor.Advantageous refinements and developments of the invention emerge from the subclaims.

Gemäß einer Besonderheit der Erfindung ist der Handöffnerhebel als ein dünnwandiges, einen ovalen Querschnitt aufweisendes und sich konisch zu dem auf der Öffnerwelle befestigten Hebel hin erweiterndes Rohr ausgebildet, dessen Form dem Handöffnerhebel neben einem geräumigen Innenraum und einer leichten Ausführung von allem Stabilität verleiht sowie darüber hinaus einen Sicherheitsschutz gegenüber dem im Innenraum angeordneten beweglichen Kolbenzylindereinheit darstellt.According to a special feature of the invention, the hand release lever is designed as a thin-walled tube having an oval cross-section and widening conically towards the lever attached to the opening shaft, the shape of which gives the hand release lever stability in addition to a spacious interior and a light design of everything, as well as represents a safety protection against the movable piston-cylinder unit arranged in the interior.

Durch eine zwischen der Öffnerwellenlagerung und dem konischen Rohr an dem Handöffnerhebel angeordnete Anlagefläche ist es möglich, die Öffnerwelle über einen Hebel in geöffnete Verschlußkeilstellung zu bewegen, während diese Anlagefläche gleichzeitig auch als Begrenzung der für den Schließhub des Verschlußkeiles erforderlichen Rückschwenkung des Hebels dient.Through a contact surface arranged between the opening shaft bearing and the conical tube on the hand release lever, it is possible to move the opening shaft via a lever into the open locking wedge position, while this contact surface also serves to limit the pivoting back of the lever required for the closing stroke of the locking wedge.

Entsprechend einer weiteren Besonderheit der Erfindung ist es durch eine günstige Lage-und Schwenkbereichabstimmung während des Expansionshubes der über einen Hebel um die Öffnerwelle schwenkbaren Kolbenzylindereinheit möglich, in einem über die Hälfte des Rückschwenkbereiches des Hebels hinausgehenden Bereich, das auf die Öffnerwelle übertragbare Drehmoment konstant zu halten. Durch das vor allem in der Beschleunigungsphase der Schließbewegung des Verschlußkeiles nicht kleiner werdende Drehmoment wird der Verschlußkeil schneller in die Verschlußstellung bewegt und dadurch die gesamte Schließzeit verkürzt.According to a further special feature of the invention, a favorable position and swivel range adjustment during the expansion stroke of the piston-cylinder unit which can be swiveled via a lever around the opener shaft makes it possible to keep the torque which can be transmitted to the opener shaft constant in a region beyond half the swivel-back range of the lever . Due to the torque, which does not decrease, especially in the acceleration phase of the closing movement of the locking wedge, the locking wedge is moved faster into the locking position and the overall closing time is shortened as a result.

Des weiteren kann bei einem schwergängigen Verschlußkeil durch Betätigen des Handöffnerhebels und Einrücken eines Schließbolzens, ohne daß Federkräfte der Kolbenzylindereinheit auftreten, der Verschlußkeil zur Einnahme der feuerbereiten Stellung geschlossen werden.Furthermore, in the case of a stiff locking wedge, by actuating the hand opener lever and engaging a locking bolt, without spring forces of the piston-cylinder unit occurring, the locking wedge can be closed to take up the ready-to-fire position.

Eis am Bodenstück entriegelbarer Griff stellt eine sichere Fixierung des hochschwenkbaren Endes des Handöffnerhebels dar, wodurch sich besonders vorteilhaft, während des automatischen Betriebes, eine stabile Lagerung gibt.Ice on the bottom piece of the unlockable handle represents a secure fixation of the swiveling end of the hand opener lever, which is particularly advantageous during the automatic operation, a stable storage.

Die Erfindung wird nachstehend anhand des, in den Zeichnungen unter weitgehendem Verzicht auf erfindungsunwesentliche Einzelheiten dargestellten bevorzugten Ausführungsbeispieles, des näheren erläutert.The invention is explained in more detail below on the basis of the preferred exemplary embodiment shown in the drawings, largely without details essential to the invention.

Es zeigt:

  • Figur 1 in einem Teillängsschnitt den auf der Öffnerwelle gelagerten und am Bodenstück verriegelten Handöffnerhebei,
  • Figur 2 in einer Schnittdarstellung entlang der Fläche 2-2 di Lagerung des Handöffnerhebels auf der Öffnerwelle,
  • Figur 3 in einer Ansicht in Richtung 3 die Verriegelung des Handöffnerhebels am Bodenstück,
  • Figur 4 in einer Schnittdarstellung entlang der Fläche 4-4 das Querschnittsprofil des Handöffnerhebels.
It shows:
  • 1 shows a partial longitudinal section of the hand opener, which is mounted on the opener shaft and locked on the base,
  • FIG. 2 shows a sectional illustration along the surface 2-2 di mounting of the manual opener lever on the opener shaft,
  • FIG. 3 shows the locking of the hand release lever on the base piece in a view in direction 3,
  • Figure 4 in a sectional view along the surface 4-4, the cross-sectional profile of the hand opener lever.

In Figur 1 ist ein um eine Öffnerwelle 5 drehbarer Handöffnerhebel 1 als Hohlkörper 2 dargestellt, dessen Innenraum 3 eine Kolbenzylindereinheit 4 aufnimmt. Die Kolbenzylindereinheit 4 ist mit ihrem Zylinder 15 über Befestigungsmittel 17 im Hohlkörper 2 schwenkbar angeordnet, während das aus der Kolbenzylindereinheit 4 herausragende Ende 18 des in seiner Längsachse verschiebbaren Kolbens 16 über Befestigungsmittel 17 mit einem fest auf der Öffnerwelle 5 sitzenden Hebel 6 schwenkbar verbunden ist. Innerhalb der Kolbenzylindereinheit 4 sind vorspannbare Federn 7 angeordnet, die während der Einnahme der Ausgangsstellung 11 entspannt und bei der Einnahme der End-stellung 8 vorgespannt werden. Sind die Federn 7 ungespannt, so liegt der Hebel 6 an einer am Handöffnerhebel als Anschlagfläche 19 ausgebildeten Anlage an. Über den Öffnerhebel 10 läßt sich der Verschlußkeil 9 während der wechselnden Drehbewegung der Öffnerwelle 5 öffnen und schlißen. Der in der Öffnung 14 des Handöffnerhebels 1 befindliche um die Achse 20 der Öffnerwelle 5 in Endstellung 8 geschwenkte Hebel 6, kann durch Hochschwenken des Handöffnerhebels 1, der durch einen verschiebbaren Griff 22 aus seiner Ruhelage 12 am Bodenstück 23 entriegelt ist mittels eines einrückbaren Schließbolzens 21 in die Ausgangsstellung 11 zurückgeschwenkt werden.In Figure 1, a hand opener lever 1 is shown as a hollow body 2 rotatable about an opening shaft 5, the interior 3 of which receives a piston-cylinder unit 4. The piston-cylinder unit 4 is pivotally arranged with its cylinder 15 by means of fastening means 17 in the hollow body 2, while the end 18 of the piston 16 protruding from the piston-cylinder unit 4 of the piston 16, which is displaceable in its longitudinal axis, is pivotably connected by means of fastening means 17 to a lever 6 seated firmly on the opening shaft 5. Preloadable springs 7 are arranged within the piston-cylinder unit 4, which are relaxed during the assumption of the starting position 11 and pretensioned when the end position 8 is assumed. If the springs 7 are not tensioned, the lever 6 rests against a system designed as a stop surface 19 on the hand opener lever. Via the opening lever 10, the locking wedge 9 can be opened and closed during the changing rotational movement of the opening shaft 5. The lever 6 located in the opening 14 of the hand opener lever 1, pivoted about the axis 20 of the opener shaft 5 in the end position 8, can be swiveled up by the hand opener lever 1, which is unlocked by a displaceable handle 22 from its rest position 12 on the base piece 23 by means of an engaging locking bolt 21 be pivoted back into the starting position 11.

Figur 2 verdeutlicht die Anordnung des Anlaufhebels 24 an der im Bodenstück 23 gelagerten Öffnerwelle 5, die Darstellung der Lagerung des Hebels 6 und des Handöffnerhebel 1 sowie die über Befestigungsmittel 17 mit dem Hebel 6 verbundene Kolbenzylindereinheit 4. Zur Betätigung des Verschiußkeiles 9 greift in diesen der mit der Öffnerwelle 5 eine feste Verbindung eingehende Öffnerhebel 10 formschlüssig ein.Figure 2 illustrates the arrangement of the thrust lever 24 on the opener shaft 5 mounted in the base piece 23, the representation of the bearing of the lever 6 and the manual opener lever 1 and the piston-cylinder unit 4 connected to the lever 6 by means of fastening means 17 with the opening shaft 5 a fixed connection incoming opening lever 10 a form fit.

In Figur 3 ist die verriegelte Stellung des Handöffnerhebels 1 dargestellt, in der Griff 22 eine formschlüssige Verbindung mit der am Bodenstück 23 angeordneten Verriegelungsgabel 25 eingeht. Durch Herausbewegen des längsverschieblichen Griffes 22 ist dieser entriegelbar.FIG. 3 shows the locked position of the hand opener lever 1, in the handle 22 a positive connection with the locking fork 25 arranged on the base piece 23 is established. By moving the longitudinally displaceable handle 22, it can be unlocked.

Hinsichtlich der Stabilität der räumlichen Bewegungsfreiheit und des Gewichtes hat der als' Hohlkörper 2 ausgebildete Handöffnerhebel 1 ein diesen Parametern entsprechendes Querschnittsprofil eines Rohres 13 angenommen, wie es die Figur 4 verdeutlicht.With regard to the stability of the spatial freedom of movement and the weight, the hand release lever 1 designed as a 'hollow body 2' has assumed a cross-sectional profile of a tube 13 which corresponds to these parameters, as illustrated in FIG.

Die Wirkungsweise ist wie folgt:

  • Das Öffnen von Hand wire durch das Herausziehen des Griffes 22 aus der Verriegelungsgabel 25 und anschließendem Hochschwenken des Handöffnerhebels 1 ermöglicht. Dabei wird der Hebel 6 durch die Anschlagfläche 19 aus der Ausgangsstellung 11, in der der Verschlußkeil 9 geschlossen ist, in die End-stellung 8, in der der Verschlußkeil 9 die geöffnete Stellung einnimmt, geschwenkt. Über die Öffnerwelle 5 und den Öffnerhebel 10 wird dabei der Verschlußkeil 9 geöffnet. Da bei der Hochschwenkbewegung des Handöffnerhebels 1 die Zylindereinheit 4 und der Hebel 6 sich gegeneinander nicht bewegen, bleiben die Federn 7 ungespannt. Lediglich das Gewicht des Verschlußkeiles 9 und die Reibung wirken sich auf die Handöffnerkraft aus. Nach Erreichen der End-stellung 8 wird der Verschlußkeil 9 über einen nicht dargestellten Verriegelungsbolzen verriegelt und somit der Hebel 6 in dieser Stellung gehalten. Beim Zurückschwenken des Handöffnerhebels 1 in seine verriegelte Ruhelage 12, werden die Schließfedern 7 unter Aufbringung einer dem Öffnungsvorgang entsprechenden niedrigen Handkraft gespannt.
The mode of action is as follows:
  • The hand wire can be opened by pulling the handle 22 out of the locking fork 25 and then pivoting the hand opener lever 1 up. The lever 6 is pivoted through the stop surface 19 from the initial position 11, in which the locking wedge 9 is closed, into the end position 8, in which the locking wedge 9 assumes the open position. The locking wedge 9 is opened via the opening shaft 5 and the opening lever 10. Since the cylinder unit 4 and the lever 6 do not move against one another during the swiveling-up movement of the hand opener lever 1, the springs 7 remain untensioned. Only the weight of the locking wedge 9 and the friction affect the hand opening force. After reaching the end position 8, the locking wedge 9 is locked via a locking bolt, not shown, and thus the lever 6 is held in this position. When the hand opener lever 1 is pivoted back into its locked rest position 12, the closing springs 7 are tensioned by applying a low hand force corresponding to the opening process.

Die Schließbewegung des Verschlußkeiles 9 erfolgt über die gespannte Kolbenzylindereinheit 4, den Hebel 6 und den Öffnerhebet 10, wobei von Beginn an, in einem bestimmten Bewegungsbereich ein gleich großes Drehmoment für .die Bewegung des Verschlußkeiles 9 auf den Öffnerhebel 10 wirkt.The closing movement of the locking wedge 9 takes place via the tensioned piston-cylinder unit 4, the lever 6 and the opening lever 10, and from the beginning, in a certain range of movement, an equally large torque acts on the opening lever 10 for the movement of the locking wedge 9.

Das automatische Öffnen des Verschlußkeiles 9 erfolgt während des Rohrvorlaufes. Während der Handöffnerhebel 1 in seiner Ruhestellung 12 verriegelt an dem Bodenstück 23 verharrt, wird über den Anlaufhebel 24 die Öffnerwelle 5 gedreht und durch die Übertragung der Drehbewegung auf den in den Verschlußkeil 9 eingreifenden Öffnerhebel10 der Verschlußkeil 9 geöffnet. Durch die Drehung der Öffnerwelle 5 und Mitbewegung des Hebels 6 aus der Ausgangsstellung 11 in die End-stellung 8, werden, während der Längsbewegung des Kolbens 18, die Federn 7 vorgespannt.The wedge 9 is opened automatically during the pipe advance. While the hand opener lever 1 remains locked in its rest position 12 on the base piece 23, the opening shaft 5 is rotated via the start lever 24 and the closing wedge 9 is opened by the transmission of the rotary movement to the opening lever 10 engaging in the locking wedge 9. By rotating the opening shaft 5 and moving the lever 6 from the initial position 11 into the end position 8, the springs 7 are pretensioned during the longitudinal movement of the piston 18.

Läßt sich ein Verschlußkeil 9 nur schwer schließen, oder bleibt dieser zwischen End- stellung 8 und der Ausgangsstellung 11 des Hebels 6 hängen, so kann der Verschluß dennoch von Hand dadurch geschlossen werden, daß der Handöffnerhebel 1 durch Griff 22 entriegelt und soweit hochgeschwenkt wird, bis die Anschlagfläche 19 an dem Hebel 6 anliegt, und durch Einrücken des Schließbolzens 21 eine starre Verbindung des Handöffnerhebels 1 mit dem Hebel 6 herstellbar ist. Durch Zurückschwenken des Handöffnerhebels 1 in die Ruhelage 12 wird der Verschlußkeil 9 über die Öffnerwelle 5 und den Öffnerhebel 10 geschlossen. Dadurch, daß bei diesem Bewegungsvorgang der Hebel 6 und der Kolben 16 ihre Lage zueinander nicht ändern, treten auch hier beim Schließen von Hand keine zusätzlichen Kräfte durch die Federn 7 auf.

Figure imgb0001
If a locking wedge 9 is difficult to close, or if it remains stuck between the end position 8 and the starting position 11 of the lever 6, the lock can still be closed by hand in that the The hand release lever 1 is unlocked by the handle 22 and swung up until the stop surface 19 abuts the lever 6, and a rigid connection of the hand release lever 1 with the lever 6 can be established by engaging the locking bolt 21. By pivoting the hand opener lever 1 into the rest position 12, the locking wedge 9 is closed via the opener shaft 5 and the opener lever 10. Because the lever 6 and the piston 16 do not change their position relative to one another during this movement process, no additional forces occur by the springs 7 when closing by hand.
Figure imgb0001

Claims (8)

1. Barrel weapon with an opening and closing device which automatically moves a breech wedge (9) and which includes energy recuperating elements (4, 7) for the breech wedge closure movement and a manual opening lever (1) pivotable about an opener shaft (5) characterized by the following features:
(a) the manual opening lever (1) comprises a hollow body (2) in the interior (3) of which an energy recuperating piston cylinder unit (4) is arranged to initiate the movement of the breech wedge in such a manner that the cylinder H5) is rotatably mounted in the manual opening lever (1) by securing means (17) and piston (16) movable in an axial direction is pivotably connected by an end (18) extending from the cylinder and through securing means (17) with a further lever (6) mounted on the opener shaft (5),
(b) when the manual opening lever (1) is in the position of rest (12) springs (7) forming energy-saving elements inside the piston cylinder unit (4) can be pre-stressed in the axial direction, by pivoting the lever (6) into an end position (8) in which the breech wedge (9) is opened in a manner known due to the entrainment of an opening lever (10) the force of the said prestressing being such that the breech wedge (9) through the lever (6) is pivotable back into the initial position (11) under resilient force and can be moved into the locking position by the opening lever (10).
(c) the opening of the breech wedge (9) from the closed position being effected by a pivoting movement of the manual opening lever (1) about the opener shafts (5) the lever (6) being held in the terminal position (8) in an energy-saving manner and by hand, without thereby effecting any prestressing of the springs (7),
(d) by means of the manual opening lever (1) and during return to the idle position (12) in which the lever (6) with the breech wedge (9) in the open position, remains in the end position (8), the springs (7) are pre-stressable with only a limited exertion of force, as a result of which the lever (6) can pivot automatically into the initial position (11) so that the breech wedge (9) can assume a closed position.
2. Barrel weapon in accordance with Claim 1, characterised by the manual opening lever (1) comprising a hollow body (2) being constructed in the receiving zone of the piston cylinder unit (4) as a thin-walled tube (13) which has an oval cross section and which tapers towards the lever (6) and in which an opening (14) is provided in the pivoting zone of the lever (6).
3. Barrel weapon in accordance with any one of Claims 1 and 2, characterised by the fact that the manual opening lever (1) is provided with a permanent stop face (19) to enable same to come to rest against and entrain the lever (6).
4. Barrel weapon in accordance with any one of Claims 1 to 3 characterised by the fact that the stop face (19) is provided at the transition point from the hollow body (2) to the mounting on the opener shaft (5) inside the manual opening lever (1
5. Barrel weapon in accordance with any one of Claims 1 to 4, characterised by the pivoting zone of the lever (6) being fixed in such a way that starting from an end position (8) in a pivoting range continuing beyond half the return pivoting movement, a torque produced by the resilient force and transmitted to the opener shaft (5) remains constant or is not reduced.
6. Barrel weapon in accordance with any one of Claims 1 to 5, characterised by the force to be supplied by the manual opening lever (1) during a manual operation of opening the breech wedge (9) corresponding to the force to be generated in the return pivoting movement to the position of rest (12) for the purpose of prestressing the springs (7).
7. Barrel weapon in accordance with any one of Claims 1 to 6, characterized by the provision in the vicinity of the opening (14) on the manual opener lever (1) of a locking bolt (21) which can be engaged by the action of a breech wedge (9) which is difficult to move, and which can be moved into a position in readiness for firing, without additional forces occurring through the springs (7), when a manual opening lever (1) which has been pivoted to bear against the lever (6) is manually pivoted back into the position of rest (12).
8. Barrel weapon in accordance with any one of Claims 1 to 7, wherein the manual opening lever (1) in the position of rest (12) can be interlocked with and released from a base part (23) using a displaceable handle (22) and an interlocking fork (25).
EP83101007A 1982-04-03 1983-02-03 Sliding-wedge breech lock mechanism Expired EP0090917B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3212522 1982-04-03
DE19823212522 DE3212522A1 (en) 1982-04-03 1982-04-03 PIPE GUN

Publications (3)

Publication Number Publication Date
EP0090917A2 EP0090917A2 (en) 1983-10-12
EP0090917A3 EP0090917A3 (en) 1984-04-04
EP0090917B1 true EP0090917B1 (en) 1986-04-09

Family

ID=6160210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101007A Expired EP0090917B1 (en) 1982-04-03 1983-02-03 Sliding-wedge breech lock mechanism

Country Status (5)

Country Link
US (1) US4569269A (en)
EP (1) EP0090917B1 (en)
JP (1) JPS58213199A (en)
DE (2) DE3212522A1 (en)
ES (1) ES520519A0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3822556A1 (en) * 1988-07-04 1990-01-18 Rheinmetall Gmbh HANDLEVER LEVER FOR OPENING AND CLOSING A LOCKING WEDGE
DE3914538A1 (en) * 1989-05-02 1990-11-08 Rheinmetall Gmbh Safety mechanism for breech of gun - consists of spring-loaded lever which prevents access to actuating toothed rack
FR2721385B1 (en) * 1994-06-17 1996-08-14 Giat Ind Sa Device for manual opening of the breech corner and artillery equipped with such a device.
US10794415B2 (en) * 2017-06-30 2020-10-06 Bollhoff Inc. Threaded blind fastener and spacer assembly and methods for the assembly and use thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1232090A (en) * 1915-06-10 1917-07-03 Cie Forges Et Acieries Marine Semi-automatically-operated gun-breech mechanism.
US2216860A (en) * 1939-05-22 1940-10-08 Us Government Breechblock operating mechanism
US2756635A (en) * 1954-12-21 1956-07-31 Marvin J Engel Multi-leaf torsion spring for closing a breechblock
US3362292A (en) * 1966-09-21 1968-01-09 Army Usa Short recoil breech actuating mechanism

Also Published As

Publication number Publication date
DE3212522A1 (en) 1983-10-13
ES8401245A1 (en) 1983-12-16
ES520519A0 (en) 1983-12-16
DE3362862D1 (en) 1986-05-15
EP0090917A2 (en) 1983-10-12
EP0090917A3 (en) 1984-04-04
JPS58213199A (en) 1983-12-12
US4569269A (en) 1986-02-11

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