EP1147357B1 - Locked breech for a semi-automatic small arm with a breech head and a breech carrier and a resilient annular catch with longitudinal slot - Google Patents

Locked breech for a semi-automatic small arm with a breech head and a breech carrier and a resilient annular catch with longitudinal slot Download PDF

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Publication number
EP1147357B1
EP1147357B1 EP00901594A EP00901594A EP1147357B1 EP 1147357 B1 EP1147357 B1 EP 1147357B1 EP 00901594 A EP00901594 A EP 00901594A EP 00901594 A EP00901594 A EP 00901594A EP 1147357 B1 EP1147357 B1 EP 1147357B1
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EP
European Patent Office
Prior art keywords
breechblock
head
breech
carrier
locking ring
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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
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EP00901594A
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German (de)
French (fr)
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EP1147357A1 (en
Inventor
Johannes Murello
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Heckler und Koch GmbH
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Heckler und Koch GmbH
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Publication of EP1147357A1 publication Critical patent/EP1147357A1/en
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    • 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
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
    • F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
    • F41A3/26—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt

Definitions

  • the invention relates to a locked closure Breech head and breech carrier for a self-loading handgun, with a resilient locking ring with a longitudinal slot, which surrounds a section of the closure head, when the lock is unlocked and expanded between the closure head and an end face of the closure carrier supports, however, when the lock is locked is compressed in the circumferential direction and into one Annulus between the closure head and the closure carrier enough, according to the preamble of the claim 1.
  • German patent DE 197 13 988 C1 the applicant has described a breech for a self-loading handgun.
  • the closure is made of a rotatable Breech head and a breech carrier constructed.
  • the lock head After Moving back during the following Return is not guided in the longitudinal grooves of the weapon housing, but instead using a locking ring held a fixed distance from the closure carrier.
  • the present documents contain location descriptions like "front”, "top” or the like used. These labels relate to a location of the handgun, which they do when shooting horizontally in the usual range occupies, i.e. with a horizontal soul axis (running center axis) and usually with horizontally movable Closure.
  • the locking ring is one that is longitudinally divided by a longitudinal slot Spring sheet metal sleeve. In a loaded state, if the locking ring is compressed radially, is the longitudinal slot compressed in the circumferential direction and the locking ring has an annular cross section. In unpolluted Condition the locking ring expands resiliently The longitudinal slot is open and the locking ring has the cross-section like an open oval.
  • the closure head has one at its front end Wreath of locking lugs on that in the circumferential direction are distributed, similar to the US rapid-fire rifle M16. In unlocked state, this wreath of locking lugs a distance from the closure carrier. The Sperring is then unloaded and surrounds the back pointing shaft of the breech head. The supports Locking itself against the back end of the wreath and the front end face of the closure carrier and prevented thus further penetration of the shaft into the Bolt carrier.
  • annular space surrounding the shaft is formed as soon as the shaft has penetrated the closure carrier.
  • the rear end of the locking ring sits on the front end face of the closure carrier, into which the annular space also opens, but cannot penetrate into this annular space because the unloaded locking ring has a non-circular cross-section or because no annular space has yet been created is formed.
  • the cross section of the unloaded locking ring can also be round.
  • the closure When the closure is closed, it dips into a known one Way with its locking warts between tabs through, which is fixed to the housing of the weapon are.
  • the locking ring strikes against beveled Trailing edges of the protrusions and is thereby compressed radially.
  • the locking ring lies with circular cross-section around the shaft of the breech head close and lies with its rear end exactly opposite the front confluence of the annulus.
  • the shaft with the locking ring surrounding it can now be used easily penetrate into the closure carrier, whereby the annulus completely or only partially the locking ring receives. The lock is locked.
  • the object of the invention is to eliminate these faults.
  • the invention proposes to solve the above Task before assigning funds to the Sperring, the one free oscillation in the radial direction, i.e. a periodic opening and closing of the longitudinal slot, obstructed (Characteristic of claim 1).
  • the invention is based on the assumption that the Cause of the above disturbances vibrations of the Locking rings are, which this with open longitudinal slot in Circumferential direction and which cause him to "breathe", that is, to alternately expand and contract. If the locking ring is excited rhythmically, for example by Continuous fire, then he can rock up to vibrations, which periodically close the longitudinal slot and again to open. If one with the longitudinal slot closed Longitudinal force acting on the closure can actually the locking ring penetrate into the annular space.
  • the solution according to the invention leads to a damping of the Vibration and reduces its amplitude. You prevented in other words, that the longitudinal slot is under the Excitation occurs so far that the locking ring can enter the annulus.
  • the inventive means for disability free Vibrations of the locking ring can result in an increased spring constant of the locking ring include, for example, by using a thicker spring steel sheet than building material. Indeed a correspondingly greater force must then also be applied to lock the lock. Further it would be possible, at least through webs, grooves, etc. in the rear area of the locking ring vibration knot too generate, which reduce the vibration amplitude there. Also by an odd or diagonal Longitudinal slit can achieve such an effect. Indeed is a corresponding one for the locking ring in these cases Construction effort required. A coating of the Locking rings would come with a vibration-damping material also considered, such as in the form of a ring bent Bimetallic strip.
  • this "outward" attack does not necessarily have to be be arranged on the closure carrier, but can are also on the breech head.
  • the locking ring is preferably seated with a slight pressure the wall of the bore section in this (claim 4). This also results in a longitudinal vibration braked in the axial direction of the locking ring and thus steamed.
  • the rear part of the closure head is preferably divided into a front section that has the inside diameter of the annular space around which the locking ring is arranged is, as well as a rear section, the outer diameter corresponds to that of the annulus and is suitable, but slidably in a hole in the closure carrier sits (claim 5).
  • This hole is on hers Junction in the front face of the closure carrier enlarged and thus forms the bore section according to the invention.
  • the annulus is thus only through penetration of the rear part of the breech head into the Bore made in the fastener carrier.
  • a barrel 1 is provided, at the rear end of which one rearwardly projecting sleeve 3 is rigidly attached.
  • the barrel 1 and the sleeve 3 can also be integrated as one Component be formed.
  • At the rear end of the sleeve a ring of radial, inward projections 5 arranged, between which open radially inwards Axial grooves run.
  • the rear end of the protrusions 5 has a bevel 9.
  • an inwardly open annular groove 7 is formed.
  • closure head 11 and a closure carrier 13 are to each other and to barrel 1 and aligned coaxially to the sleeve 3.
  • the closure head 11 has an elongated, overall cylindrical shaft 17, at its front end Wreath of locking lugs 15 is formed.
  • the Shaft 17 has a front shaft section 19 and one rear shaft section 21.
  • the front section of the shaft 19 has a smaller diameter than that rear shaft portion 21 and extends from the locking lugs 15 out to the rear.
  • Between the two A shoulder 20 is formed in shaft sections 19 and 21.
  • the closure carrier 13 has a bore open to the front 23 on the rear shaft portion 21 of the breech head 11 fits but slidably.
  • the Bore 23 is enlarged in diameter at its front end and forms a front bore section there 25. Between the front bore section 25 and the remaining part of the bore 23 is a bore shoulder 24 educated.
  • the front shaft portion 19 of the breech head 11 is surrounded by a locking ring 27.
  • This is made of spring steel sheet formed, has a wall thickness that is about the half the difference between the outer diameters of the first 19 and second 21 shaft section corresponds, has a continuous longitudinal slot and has in compressed Condition (with the longitudinal slot closed) an annular cross section. Under the influence of The locking ring 27 is spring-loaded by the spring steel sheet apart (Fig. 2) so that the longitudinal slot opens.
  • the locking head 11 is in the unlocked state (FIG. 2) pulled out of the closure carrier 13 at least as far as that the bore paragraph 24 between the expanded front bore section 25 and the remaining bore 23 is exactly at the same height as the shaft shoulder 20, or better still a little further for tolerance reasons.
  • the locking ring 27 is in expanded (largely load-free) condition and sits with its front End on the back surfaces of the locking lugs 15 and with its rear end on the bore shoulder 24 on. He thus connects the closure head 11 with the closure carrier 13 and prevents insertion of the Closure head 11 in the bore 23 of the closure carrier 13th

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Vibration Prevention Devices (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Insertion Pins And Rivets (AREA)
  • Connection Of Plates (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

An elastic sleeve having a longitudinal slit is positioned between a bolt head and bolt carrier. The sleeve is inserted into an annular space in the bolt carrier when the sleeve is radially compressed allowing relative movement between the bolt head and bolt carrier. The sleeve is supported between the bolt head and an end surface of the bolt carrier when the sleeve is expanded preventing relative movement between the bolt head and the bolt carrier. The periphery of the uncompressed elastic sleeve contacts the bolt carrier or bolt head to thereby effectively damp the elastic sleeve.

Description

Die Erfindung betrifft einen verriegelten Verschluß aus Verschlußkopf und Verschlußträger für eine Selbstlade-Handfeuerwaffe, mit einem federnden Sperring mit Längsschlitz, der einen Abschnitt des Verschlußkopfes umgibt, bei unverriegeltem Verschluß aufgeweitet ist und sich zwischen dem Verschlußkopf und einer Stirnfläche des Verschlußträgers abstützt, dagegen bei verriegeltem Verschluß in Umfangsrichtung zusammengedrückt ist und in einen Ringraum zwischen dem Verschlußkopf und dem Verschlußträger reicht, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a locked closure Breech head and breech carrier for a self-loading handgun, with a resilient locking ring with a longitudinal slot, which surrounds a section of the closure head, when the lock is unlocked and expanded between the closure head and an end face of the closure carrier supports, however, when the lock is locked is compressed in the circumferential direction and into one Annulus between the closure head and the closure carrier enough, according to the preamble of the claim 1.

Im deutschen Patent DE 197 13 988 C1 hat die Anmelderin einen Verschluß für eine Selbstlade-Handfeuerwaffe beschrieben. Dabei ist der Verschluß aus einem drehbaren Verschlußkopf und einem Verschlußträger aufgebaut. Beim Entriegeln des Verschlusses wird der Verschlußkopf nach Zurücklegen seiner Drehbewegung während des nachfolgenden Rücklaufes nicht in Längsnuten des Waffengehäuses geführt, sondern stattdessen mittels eines Sperringes auf einer festen Distanz zum Verschlußträger gehalten.In German patent DE 197 13 988 C1 the applicant has described a breech for a self-loading handgun. The closure is made of a rotatable Breech head and a breech carrier constructed. At the Unlocking the lock is the lock head after Moving back during the following Return is not guided in the longitudinal grooves of the weapon housing, but instead using a locking ring held a fixed distance from the closure carrier.

Der Inhalt dieses deutschen Patents wird durch die Bezugnahme ausdrücklich in die vorliegenden Unterlagen als Offenbarung mit aufgenommen.The content of this German patent is by reference expressly in the present documents as a revelation recorded with.

Ferner werden in den vorliegenden Unterlagen Lagebezeichnungen wie "vorne", "oben" o.dgl. verwendet. Diese Bezeichnungen beziehen sich auf eine Lage der Handfeuerwaffe, die sie bei horizontalem Schießen im üblichen Anschlag einnimmt, also mit horizontaler Seelenachse (Lauf-Mittelachse) und in aller Regel mit horizontal beweglichem Verschluß.Furthermore, the present documents contain location descriptions like "front", "top" or the like used. These labels relate to a location of the handgun, which they do when shooting horizontally in the usual range occupies, i.e. with a horizontal soul axis (running center axis) and usually with horizontally movable Closure.

Der Sperring ist eine durch einen Längsschlitz längsgeteilte Hülse aus Federblech. In belastetem Zustand, wenn der Sperring radial zusammengedrückt ist, ist der Längsschlitz in Umfangsrichtung zusammengedrückt und der Sperring hat einen kreisringförmigen Querschnitt. In unbelastetem Zustand weitet sich der Sperring federnd auf, der Längsschlitz ist geöffnet und der Sperring hat den Querschnitt etwa eines geöffneten Ovals.The locking ring is one that is longitudinally divided by a longitudinal slot Spring sheet metal sleeve. In a loaded state, if the locking ring is compressed radially, is the longitudinal slot compressed in the circumferential direction and the locking ring has an annular cross section. In unpolluted Condition the locking ring expands resiliently The longitudinal slot is open and the locking ring has the cross-section like an open oval.

Der Verschlußkopf weist an seinem vorderen Ende einen Kranz von Verriegelungswarzen auf, die in Umfangsrichtung verteilt sind, ähnlich dem US-Schnellfeuergewehr M16. In entriegeltem Zustand weist dieser Kranz von Verriegelungswarzen einen Abstand zum Verschlußträger auf. Der Sperring ist dann unbelastet und umgibt den nach hinten weisenden Schaft des Verschlußkopfes. Dabei stützt der Sperring sich gegen das hintere Ende des Kranzes und die vordere Stirnfläche des Verschlußträgers ab und verhindert somit ein weiteres Eindringen des Schaftes in den Verschlußträger. The closure head has one at its front end Wreath of locking lugs on that in the circumferential direction are distributed, similar to the US rapid-fire rifle M16. In unlocked state, this wreath of locking lugs a distance from the closure carrier. The Sperring is then unloaded and surrounds the back pointing shaft of the breech head. The supports Locking itself against the back end of the wreath and the front end face of the closure carrier and prevented thus further penetration of the shaft into the Bolt carrier.

Zwischen dem Verschlußkopfschaft und dem Verschlußträger wird ein den Schaft umgebender Ringraum gebildet, sobald der Schaft in den Verschlußträger eingedrungen ist.Between the breech head shaft and the breech carrier an annular space surrounding the shaft is formed as soon as the shaft has penetrated the closure carrier.

Wie schon beschrieben, sitzt im entriegelten Zustand das hintere Ende des Sperringes auf der vorderen Stirnfläche des Verschlußträgers auf, in die auch der Ringraum einmündet, kann aber in diesen Ringraum nicht eindringen, weil der unbelastete Sperring einen unrunden Querschnitt aufweist, oder weil noch kein Ringraum gebildet ist.
Der Querschnitt des unbelasteten Sperrings kann aber auch rund sein. Bei unbelastetem Sperring ist dann der Außendurchmesser des Sperrings größer als der Außendurchmesser des Ringraumes.As already described, in the unlocked state the rear end of the locking ring sits on the front end face of the closure carrier, into which the annular space also opens, but cannot penetrate into this annular space because the unloaded locking ring has a non-circular cross-section or because no annular space has yet been created is formed.
The cross section of the unloaded locking ring can also be round. When the locking ring is not loaded, the outside diameter of the locking ring is then larger than the outside diameter of the annular space.

Beim Schließen des Verschlusses taucht dieser in bekannter Weise mit seinen Verriegelungswarzen zwischen Vorsprüngen hindurch, die ortsfest am Gehäuse der Waffe angebracht sind. Der Sperring schlägt dabei gegen abgeschrägte Hinterkanten der Vorsprünge an und wird dadurch radial zusammengedrückt. Nun liegt der Sperring mit kreisringförmigem Querschnitt rund um den Schaft des Verschlußkopfes dicht an und liegt mit seinem hinteren Ende genau der vorderen Einmündung des Ringraumes gegenüber. Es kann nun der Schaft mit dem ihn dicht umgebenden Sperring ohne weiteres in den Verschlußträger eindringen, wobei der Ringraum ganz oder nur teilweise den Sperring aufnimmt. Der Verschluß wird dabei verriegelt.When the closure is closed, it dips into a known one Way with its locking warts between tabs through, which is fixed to the housing of the weapon are. The locking ring strikes against beveled Trailing edges of the protrusions and is thereby compressed radially. Now the locking ring lies with circular cross-section around the shaft of the breech head close and lies with its rear end exactly opposite the front confluence of the annulus. The shaft with the locking ring surrounding it can now be used easily penetrate into the closure carrier, whereby the annulus completely or only partially the locking ring receives. The lock is locked.

Beim Entriegeln bewegt sich der Verschlußträger gegenüber dem Verschlußkopf nach hinten und gibt dabei den vorderen Abschnitt des Verschlußkopfschaftes und damit den Sperring frei. Der Sperring federt daraufhin in seine unbelastete Position und stellt sicher, daß der Abstand zwischen Verschlußkopf und Verschlußträger beim weiteren Rück- und Vorlauf erhalten bleibt, bis der Verschluß wieder verriegelt wird.When unlocking the lock carrier moves opposite the breech head backwards and gives the front Section of the breech head shaft and thus the locking ring free. The locking ring then springs into its unloaded Position and ensures that the distance between Closure head and closure carrier in the further Rewind and fast forward are retained until the shutter is closed again is locked.

In Versuchen hat sich dieser bekannte Verschluß hervorragend bewährt. Durch ihn ist es möglich geworden, den Aufbau des Verschlußgehäuses wesentlich zu vereinfachen, weil dieses den Verschlußkopf nicht mehr führen muß. In äußerst seltenen Fällen ist es jedoch bisweilen zu Störungen gekommen. Diese bestanden darin, daß der Sperring auch im unbelasteteten, aufgeweiteten Zustand in den Ringraum gelangt ist.In experiments, this known closure has been outstanding proven. Through him it has become possible to build to simplify the closure housing considerably, because this no longer has to guide the locking head. In in extremely rare cases, however, it can sometimes lead to disturbances came. These consisted of the locking ring even in the unloaded, expanded state in the annulus has arrived.

Aufgabe der Erfindung ist es, diese Störungen auszuräumen.The object of the invention is to eliminate these faults.

Hier böte es sich an, den Außendurchmesser des unbelasteten Sperrings vor dem Einbau weiter aufzuweiten. Dann müßten allerdings größere Kräfte zum Zusammendrücken des Sperringes in Kauf genommen werden, die ihrerseits die Funktion der Waffe beeinträchtigen könnten. Zusätzlich oder stattdessen könnten auch die hintere Stirnfläche des Sperringes und die vordere Stirnfläche des Verschlußträgers plangeschliffen werden, um Abschrägungen zu vermeiden, die ein ungewolltes Einlaufen des Sperringes in den Ringraum erleichtern könnten. Es könnte auch die axiale Länge des Sperringes enger toleriert werden, um zu vermeiden, daß der Sperring kippt. Diese baulichen Maßnahmen sind allerdings kostenintensiv.Here it would make sense to use the outer diameter of the unloaded Expand locking rings before installation. Then however, greater forces would have to be used to compress the Sperringes are accepted, which in turn the Function of the weapon. additionally or instead the rear face of the Locking ring and the front face of the closure carrier be ground flat to avoid bevels, which prevents the locking ring from entering the Could ease annulus. It could also be the axial Length of the locking ring to be tolerated more closely to avoid that the locking ring tilts. These structural measures are expensive, however.

Demgegenüber schlägt die Erfindung zur Lösung der obigen Aufgabe vor, dem Sperring Mittel zuzuordnen, die eine freie Schwingung desselben in radialer Richtung, also ein periodisches öffnen und Schließen des Längsschlitzes, behindert (Kennzeichen des Anspruchs 1). In contrast, the invention proposes to solve the above Task before assigning funds to the Sperring, the one free oscillation in the radial direction, i.e. a periodic opening and closing of the longitudinal slot, obstructed (Characteristic of claim 1).

Die Erfindung geht nämlich von der Annahme aus, daß die Ursache der obengenannten Störungen Schwingungen des Sperringes sind, die dieser bei offenem Längsschlitz in Umfangsrichtung ausführen kann und die ihn veranlassen, zu "atmen", also sich abwechselnd aufzuweiten und zu verengen. Wird der Sperring rhythmisch erregt, etwa durch Dauerfeuer, dann kann er sich zu Schwingungen aufschaukeln, die den Längsschlitz periodisch schließen und wieder öffnen. Wenn bei geschlossenem Längsschlitz eine Längskraft auf den Verschluß einwirkt, kann tatsächlich der Sperring in den Ringraum eindringen.The invention is based on the assumption that the Cause of the above disturbances vibrations of the Locking rings are, which this with open longitudinal slot in Circumferential direction and which cause him to "breathe", that is, to alternately expand and contract. If the locking ring is excited rhythmically, for example by Continuous fire, then he can rock up to vibrations, which periodically close the longitudinal slot and again to open. If one with the longitudinal slot closed Longitudinal force acting on the closure can actually the locking ring penetrate into the annular space.

Die erfindungsgemäße Lösung führt zu einer Dämpfung der Schwingung und mindert deren Amplitude. Sie verhindert, mit anderen Worten, daß der Längsschlitz sich unter den auftretenden Erregungen so weit schließt, daß der Sperring in den Ringraum einlaufen kann.The solution according to the invention leads to a damping of the Vibration and reduces its amplitude. You prevented in other words, that the longitudinal slot is under the Excitation occurs so far that the locking ring can enter the annulus.

Die erfindungsgemäßen Mittel zur Behinderung freier Schwingungen des Sperringes können eine erhöhte Federkonstante des Sperringes umfassen, etwa durch Verwendung eines dickeren Federstahlbleches als Baumaterial. Allerdings muß dann auch eine entsprechend größere Kraft aufgebracht werden, um den Verschluß zu verriegeln. Ferner wäre es möglich, etwa durch Stege, Nuten usw., mindestens im hinteren Bereich des Sperringes Schwingungsknoten zu erzeugen, welche die Schwingungs-Amplitude dort verringern. Auch durch einen ungeraden oder schräglaufenden Längsschlitz kann eine solche Wirkung erzielt werden. Allerdings ist in diesen Fällen für den Sperring ein entsprechender Bauaufwand vonnöten. Eine Beschichtung des Sperringes mit einem schwingungsdämpfenden Material käme ebenfalls in Betracht, etwa in Form eines zum Ring gebogenen Bimetallstreifens. The inventive means for disability free Vibrations of the locking ring can result in an increased spring constant of the locking ring include, for example, by using a thicker spring steel sheet than building material. Indeed a correspondingly greater force must then also be applied to lock the lock. Further it would be possible, at least through webs, grooves, etc. in the rear area of the locking ring vibration knot too generate, which reduce the vibration amplitude there. Also by an odd or diagonal Longitudinal slit can achieve such an effect. Indeed is a corresponding one for the locking ring in these cases Construction effort required. A coating of the Locking rings would come with a vibration-damping material also considered, such as in the form of a ring bent Bimetallic strip.

Gemäß einer bevorzugten Ausgestaltung der Erfindung (Ansprüche 2 und 3) bleibt jedoch der Sperring gegenüber dem bekannten Sperring weitgehend unverändert und wird nur leicht verlängert, denn die Ausbildung der Sperringes ist bereits hinsichtlich der Verschlußfunktion herstellungsoptimiert. Der Ringraum wird an dem Ende, das in die Stirnfläche des Verschlußträgers einmündet, um einen kurzen Bohrungsabschnitt verlängert, welcher das hintere Ende des Sperringes aufnimmt, wenn dieser sich entspannt, d.h. aufweitet. Der Durchmesser dieses Bohrungsabschnittes ist dabei soviel größer als der des restlichen Ringraumes, daß der Sperring mit aufgeweitetem Längsschlitz zwar aufgenommen werden, aber nicht oder nicht wesentlich über seine Sollage auseinanderschwingen kann. Eine schädliche Schwingung kann sich im Sperring also nicht aufschaukeln. Gleichzeitig zentriert der Bohrungsabschnitt auch den Sperring, so daß er nicht eine außermittige Lage einnehmen kann, die ein unerwünschtes Hineingleiten in den Ringraum begünstigen könnte.According to a preferred embodiment of the invention (Claims 2 and 3) remains however the ring the well-known lock ring largely unchanged and will only slightly extended, because the formation of the locking rings is already optimized with regard to the closure function. The annulus will be at the end that in the End face of the closure carrier opens to a short Bore section that extends the rear end of the locking ring when it relaxes, i.e. expands. The diameter of this hole section is so much larger than that of the rest of the annulus, that the locking ring with widened longitudinal slot may be included, but not or not significantly can swing apart over its target position. A harmful one So vibration cannot build up in the locking ring. The bore section is centered at the same time also the locking ring so that it is not an off-center location can take, which an undesirable sliding into could favor the annulus.

Es wäre auch möglich, eine Ringnut wie die Verlängerung des Bohrungsabschnittes nicht am rückwärtigen, sondern am vorderen Ende des vom Sperring umgebenen Abschnitt auszubilden, also etwa in den rückwärtigen Flächen von Verriegelungswarzen.It would also be possible to have an annular groove like the extension of the bore section not on the rear, but on to form the front end of the section surrounded by the locking ring, So in the rear surfaces of locking lugs.

Dieser Anschlag "nach außen" muß allerdings nicht unbedingt am Verschlußträger angeordnet sein, sondern kann sich auch am Verschlußkopf befinden.However, this "outward" attack does not necessarily have to be be arranged on the closure carrier, but can are also on the breech head.

Ausgedehnte Versuche haben ergeben, daß der erweiterte Bohrungsabschnitt zusammen mit dem verlängerten Sperring in jedem Fall eine völlig störungsfreie Funktion des Verschlusses gewährleistet. Extensive tests have shown that the extended Bore section together with the extended locking ring in any case a completely trouble-free function of the closure guaranteed.

Bevorzugt sitzt der Sperring mit leichtem Andruck gegen die Wandung des Bohrungsabschnittes in diesem (Anspruch 4). Dadurch wird auch eine sich etwa einstellende Longitudinalschwingung in Achsrichtung des Sperringes gebremst und somit gedämpft.The locking ring is preferably seated with a slight pressure the wall of the bore section in this (claim 4). This also results in a longitudinal vibration braked in the axial direction of the locking ring and thus steamed.

Bevorzugt ist der hintere Teil des Verschlußkopfes unterteilt in einen vorderen Abschnitt, der den Inndendurchmesser des Ringraumes aufweist, um den der Sperring angeordnet ist, sowie einen hinteren Abschnitt, dessen Außendurchmesser dem des Ringraumes entspricht und der passend, aber verschieblich in einer Bohrung im Verschlußträger sitzt (Anspruch 5). Diese Bohrung ist an ihrer Einmündung in die vordere Stirnfläche des Verschlußträgers vergrößert und bildet so den erfindungsgemäßen Bohrungsabschnitt. Der Ringraum wird somit erst durch Eindringen des hinteren Teils des Verschlußkopfes in die Bohrung im Verschlußträger hergestellt. Bei entriegeltem Verschluß liegt nur eine schmale Ringnut zwischen der Innenwand des Bohrungsabschittes und der Außenwand des vorderen Abschnitts des hinteren Teils des Verschlußkopfes vor. In dieser Ringnut sitzt das hintere Ende des Sperringes.The rear part of the closure head is preferably divided into a front section that has the inside diameter of the annular space around which the locking ring is arranged is, as well as a rear section, the outer diameter corresponds to that of the annulus and is suitable, but slidably in a hole in the closure carrier sits (claim 5). This hole is on hers Junction in the front face of the closure carrier enlarged and thus forms the bore section according to the invention. The annulus is thus only through penetration of the rear part of the breech head into the Bore made in the fastener carrier. When unlocked There is only a narrow ring groove between the inner wall of the bore section and the outer wall of the front Section of the rear part of the closure head in front. The rear end of the locking ring sits in this ring groove.

Der Gegenstand der Erfindung wird anhand eines Ausführungsbeispiels und der beigefügten, schematischen Zeichnung noch näher erläutert. In der Zeichnung zeigen:

  • Fig. 1 einen Längssschnitt durch einen erfindungsgemäßen Verschluß in verriegeltem Zustand, und
  • Fig. 2 den Verschluß der Fig. 1 in entriegeltem Zustand.
    • The subject matter of the invention is explained in more detail with the aid of an exemplary embodiment and the attached schematic drawing. The drawing shows:
  • Fig. 1 shows a longitudinal section through a closure according to the invention in the locked state, and
  • Fig. 2 shows the closure of Fig. 1 in the unlocked state.

    • Die Beschreibung der gezeigten Elemente erfolgt hier nur abrißartig, da im eingangs genannten Patent DE 197 13 988 C1 bereits eine genaue Beschreibung erfolgt ist. The elements shown are only described here tear-off, since in the aforementioned patent DE 197 13 988 C1 a precise description has already been given.

    Es ist ein Lauf 1 vorgesehen, an dessen hinterem Ende eine nach hinten überstehende Hülse 3 starr befestigt ist. Der Lauf 1 und die Hülse 3 können auch als ein integriertes Bauteil ausgebildet sein. Am hinteren Hülsenende ist ein Kranz radialer, nach innen gerichteter Vorsprünge 5 angeordnet, zwischen denen radial nach innen offene Axialnuten verlaufen. Das hintere Ende der Vorsprünge 5 weist eine Abschrägung 9 auf. Zwischen dem hinteren Laufende und dem vorderen Ende des Kranzes aus Vorsprüngen 5 ist eine nach innen offene Ringnut 7 gebildet.A barrel 1 is provided, at the rear end of which one rearwardly projecting sleeve 3 is rigidly attached. The barrel 1 and the sleeve 3 can also be integrated as one Component be formed. At the rear end of the sleeve a ring of radial, inward projections 5 arranged, between which open radially inwards Axial grooves run. The rear end of the protrusions 5 has a bevel 9. Between the back end and the front end of the ring of protrusions 5 an inwardly open annular groove 7 is formed.

    Ein Verschlußkopf 11 und ein Verschlußträger 13 bilden einen Verschluß und sind zueinander sowie zum Lauf 1 und zur Hülse 3 koaxial ausgerichtet.Form a closure head 11 and a closure carrier 13 a breech and are to each other and to barrel 1 and aligned coaxially to the sleeve 3.

    Der Verschlußkopf 11 weist einen länglichen, insgesamt zylindrischen Schaft 17 auf, an dessen vorderem Ende ein Kranz von Verriegelungswarzen 15 ausgebildet ist. Der Schaft 17 weist einen vorderen Schaftabschnitt 19 und einen hinteren Schaftabschnitt 21 auf. Der vordere Schaftabschnitt 19 hat einen kleineren Durchmesser als der hintere Schaftabschnitt 21 und verläuft von den Verriegelungswarzen 15 aus nach hinten. Zwischen den beiden Schaftabschnitten 19 und 21 ist ein Absatz 20 ausgebildet.The closure head 11 has an elongated, overall cylindrical shaft 17, at its front end Wreath of locking lugs 15 is formed. The Shaft 17 has a front shaft section 19 and one rear shaft section 21. The front section of the shaft 19 has a smaller diameter than that rear shaft portion 21 and extends from the locking lugs 15 out to the rear. Between the two A shoulder 20 is formed in shaft sections 19 and 21.

    Der Verschlußträger 13 weist eine nach vorne offene Bohrung 23 auf, die den hinteren Schaftabschnitt 21 des Verschlußkopfes 11 passend, aber verschieblich aufnimmt. Die Bohrung 23 ist an ihrem vordere Ende im Durchmesser vergrößert und bildet dort einen vorderen Bohrungsabschnitt 25. Zwischen dem vorderen Bohrungsabschnitt 25 und dem restlichen Teil der Bohrung 23 ist ein Bohrungsabsatz 24 ausgebildet. The closure carrier 13 has a bore open to the front 23 on the rear shaft portion 21 of the breech head 11 fits but slidably. The Bore 23 is enlarged in diameter at its front end and forms a front bore section there 25. Between the front bore section 25 and the remaining part of the bore 23 is a bore shoulder 24 educated.

    Der vordere Schaftabschnitt 19 des Verschlußkopfes 11 wird von einem Sperring 27 umgeben. Dieser ist aus Federstahlblech gebildet, hat eine Wandstärke, die etwa der halben Differenz zwischen den Außendurchmessern des ersten 19 und zweiten 21 Schaftabschnittes entspricht, weist einen durchgehenden Längsschlitz auf und hat in zusammengedrücktem Zustand (bei geschlossenem Längsschlitz) einen kreisringförmigen Querschnitt. Unter Einwirkung der Federkraft der Federstahlblechs federt der Sperring 27 auseinander (Fig. 2), so daß sich der Längsschlitz öffnet.The front shaft portion 19 of the breech head 11 is surrounded by a locking ring 27. This is made of spring steel sheet formed, has a wall thickness that is about the half the difference between the outer diameters of the first 19 and second 21 shaft section corresponds, has a continuous longitudinal slot and has in compressed Condition (with the longitudinal slot closed) an annular cross section. Under the influence of The locking ring 27 is spring-loaded by the spring steel sheet apart (Fig. 2) so that the longitudinal slot opens.

    In entriegeltem Zustand (Fig. 2) ist der Verschlußkopf 11 mindestens so weit aus dem Verschlußträger 13 herausgezogen, daß der Bohrungsabsatz 24 zwischen dem erweiterten vorderen Bohrungsabschnitt 25 und der restlichen Bohrung 23 genau auf gleicher Höhe liegt wie der Schaftabsatz 20, oder besser noch aus Toleranzgründen ein wenig weiter.The locking head 11 is in the unlocked state (FIG. 2) pulled out of the closure carrier 13 at least as far as that the bore paragraph 24 between the expanded front bore section 25 and the remaining bore 23 is exactly at the same height as the shaft shoulder 20, or better still a little further for tolerance reasons.

    Der Sperring 27 befindet sich in aufgeweitetem (weitgehend lastfreiem) Zustand und sitzt mit seinem vorderen Ende auf den hinteren Flächen der Verriegelungswarzen 15 sowie mit seinem hinteren Ende auf dem Bohrungsabsatz 24 auf. Er verbindet somit den Verschlußkopf 11 mit dem Verschlußträger 13 und verhindert ein Einschieben des Verschlußkopfes 11 in die Bohrung 23 des Verschlußträgers 13.The locking ring 27 is in expanded (largely load-free) condition and sits with its front End on the back surfaces of the locking lugs 15 and with its rear end on the bore shoulder 24 on. He thus connects the closure head 11 with the closure carrier 13 and prevents insertion of the Closure head 11 in the bore 23 of the closure carrier 13th

    Beim Schließen des Verschlusses laufen die Verriegelungswarzen 15 zwischen den Vorsprüngen 5 hindurch, bis der Sperring 27 mit seiner vorderen Kante gegen die Abschrägung 9 der Vorsprünge 5 aufläuft. Im Verlaufe der weiteren Bewegung wird der Sperring 27 so weit zusammengedrückt, bis er mit seinem vorderen Teil radial innerhalb der Vorsprünge 5 liegt, die ihn gegen die Wirkung seiner Federkraft eng an den Außenumfang des vorderen Schaftabschnitts 19 andrücken, wobei sein Längsschlitz weitgehend geschlossen ist und er einen kreisringförmigen Querschnitt eingenommen hat. Mit seinem hinteren Ende sitzt nun der Sperring 27 ausschließlich auf dem zwischen dem ersten 19 und dem zweiten 21 Abschnitt gebildeten Schaftabsatz 20 auf, so daß der Schaft 17 nunmehr eine durchgehende zylindrische Außenfläche aufweist, die von den Außenumfangsflächen des Sperrings 27 und des hinteren Schaftabschnitts 21 gebildet sind.The locking lugs run when the lock is closed 15 between the projections 5 until the Locking ring 27 with its front edge against the bevel 9 of the projections 5 runs up. In the course of the others Movement, the locking ring 27 is compressed so far until it is radially inside with its front part the protrusions 5 lies against him against the action of his Spring force tight to the outer circumference of the front shaft section Press 19, its longitudinal slot largely is closed and it has an annular cross section has taken. Sitting with its rear end now the locking ring 27 exclusively on the between the first 19 and the second 21 section formed shaft shoulder 20 on, so that the shaft 17 is now a continuous has cylindrical outer surface by the Outer peripheral surfaces of the locking ring 27 and the rear Shaft section 21 are formed.

    Nun kann der Schaft 17 in die Bohrung 23 eindringen und der Verschlußträger 13 verschiebt sich relativ zum Verschlußkopf 11 nach vorne, wobei der Verschlußkopf durch nicht dargestellte Mittel gedreht wird (Fig. 1). Die Verriegelungswarzen 15 hintergreifen nun von vorne her die Vorsprünge 5. Der Verschluß ist verriegelt.Now the shaft 17 can penetrate into the bore 23 and the closure carrier 13 moves relative to the closure head 11 to the front, with the closure head through means not shown is rotated (Fig. 1). The locking warts 15 now reach behind from the front Projections 5. The lock is locked.

    Beim Öffnen des Verschlusses wird der Verschlußträger 13 nach hinten bewegt. Der Verschlußkopf 11 wird dabei in seine Ausgangslage zurückgedreht und dann nach hinten gezogen. Dabei ist der Schaft 17 aus der Bohrung 23 so weit herausgetaucht, wie in Fig. 2 gezeigt. Nun verläßt der Sperring 27 den Eingriffsbereich der Vorsprünge 5 und ihrer Abschrägung 9, federt radial nach außen und greift in den Bohrungsabsatz 24 ein. Dabei liegt das hintere Ende des Sperringes 27 mit seinem Außenumfang leicht gegen den Innenumfang des Bohrungsabschitts 25 an. Nun kann sich der Verschlußkopf 11 nicht mehr relativ zum Verschlußträger 13 bewegen.When the closure is opened, the closure carrier 13 moved backwards. The closure head 11 is in turned back its starting position and then pulled back. The shaft 17 is so far from the bore 23 dipped out as shown in Fig. 2. Now the leaves Locking ring 27 the engagement area of the projections 5 and their Bevel 9, springs radially outwards and engages the bore paragraph 24 a. The back end is there the locking ring 27 with its outer circumference slightly against the Inner circumference of the bore section 25. Now can the closure head 11 is no longer relative to the closure carrier 13 move.

    Claims (5)

    1. A locked breechblock comprising a breechblock head (11) and a breechblock carrier (13) for a self-loading small arm, having a resilient detent ring (27) with longitudinal slit, which
      surrounds a portion (19) of the breechblock head (11) and
      is expanded when the breechblock is unlocked and is supported between a part (15) of the breechblock head (11) and a part (24) of the breechblock carrier (13),
      whereas it is radially compressed when the breechblock is locked and enters an annular space between the breechblock head (11) and the breechblock carrier (13),
      characterised by
      means (25) for preventing free radial vibration of the detent ring (27).
    2. A breechblock according to claim 1, characterised in that an annular groove is provided, the diameter of which is designed to accommodate the expanded detent ring (27) when the breechblock is unlocked.
    3. A breechblock according to claim 2, characterised in that the junction of the annular space is extended by a bore portion (25) which forms the annular groove.
    4. A breechblock according to claim 3, characterised in that the detent ring (27) rests with slight pretension against the circumferential walls of the bore portion (25) when the breechblock is unlocked.
    5. A breechblock according to one of claims 1 to 4, characterised in that the rear part (17) of the breechblock head (11) comprises a front portion (19), the diameter of which corresponds to the internal diameter of the annular space and which is surrounded by the detent ring (27), as well as a rear portion (21), which corresponds to the external diameter of the annular space.
    EP00901594A 1999-01-28 2000-01-26 Locked breech for a semi-automatic small arm with a breech head and a breech carrier and a resilient annular catch with longitudinal slot Expired - Lifetime EP1147357B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19903325A DE19903325B4 (en) 1999-01-28 1999-01-28 Locked breech for a self-loading handgun, with a breech head and breech carrier and a resilient locking ring with a longitudinal slot
    DE19903325 1999-01-28
    PCT/EP2000/000588 WO2000045108A1 (en) 1999-01-28 2000-01-26 Locked breech for a semi-automatic small arm with a breech head and a breech carrier and a resilient annular catch with longitudinal slot

    Publications (2)

    Publication Number Publication Date
    EP1147357A1 EP1147357A1 (en) 2001-10-24
    EP1147357B1 true EP1147357B1 (en) 2003-07-30

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00901594A Expired - Lifetime EP1147357B1 (en) 1999-01-28 2000-01-26 Locked breech for a semi-automatic small arm with a breech head and a breech carrier and a resilient annular catch with longitudinal slot

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    Country Link
    US (1) US6564491B2 (en)
    EP (1) EP1147357B1 (en)
    KR (1) KR100486974B1 (en)
    AT (1) ATE246334T1 (en)
    CA (1) CA2360259C (en)
    DE (2) DE19903325B4 (en)
    WO (1) WO2000045108A1 (en)
    ZA (1) ZA200103878B (en)

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    Publication number Publication date
    WO2000045108A1 (en) 2000-08-03
    EP1147357A1 (en) 2001-10-24
    KR20010103754A (en) 2001-11-23
    CA2360259A1 (en) 2000-08-03
    US20020020097A1 (en) 2002-02-21
    ZA200103878B (en) 2002-01-10
    DE50003098D1 (en) 2003-09-04
    CA2360259C (en) 2004-10-12
    DE19903325B4 (en) 2004-07-22
    US6564491B2 (en) 2003-05-20
    ATE246334T1 (en) 2003-08-15
    KR100486974B1 (en) 2005-05-03
    DE19903325A1 (en) 2000-08-10

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