EP0287944A2 - Elastic shock absorption device - Google Patents

Elastic shock absorption device Download PDF

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Publication number
EP0287944A2
EP0287944A2 EP88105915A EP88105915A EP0287944A2 EP 0287944 A2 EP0287944 A2 EP 0287944A2 EP 88105915 A EP88105915 A EP 88105915A EP 88105915 A EP88105915 A EP 88105915A EP 0287944 A2 EP0287944 A2 EP 0287944A2
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EP
European Patent Office
Prior art keywords
housing part
longitudinal groove
housing parts
longitudinal
another
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88105915A
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German (de)
French (fr)
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EP0287944A3 (en
EP0287944B1 (en
Inventor
Rolf Dipl.-Ing. Krämer
Dieter Dipl.-Ing. Kröger
Herbert Büdenbender
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Waggon Union GmbH
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Waggon Union GmbH
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Priority to AT88105915T priority Critical patent/ATE68143T1/en
Publication of EP0287944A2 publication Critical patent/EP0287944A2/en
Publication of EP0287944A3 publication Critical patent/EP0287944A3/en
Application granted granted Critical
Publication of EP0287944B1 publication Critical patent/EP0287944B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/18—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/02—Buffers with metal springs
    • B61G11/04—Buffers with metal springs with helical springs

Definitions

  • the invention relates to a device for resilient absorption of impact forces, in particular sleeve buffers for rail vehicles, which consists of two tubular and telescopically displaceable housing parts braced against each other against the force of a spring, one end of which is designed as a pressure plate supporting the spring, the length of the device free of impact force is fixed by a form-locking anti-rotation device fixedly arranged on one housing part and projecting into a recess in the other housing part, the length of the recess corresponding to at least the maximum displaceability of the two housing parts relative to one another.
  • Sleeve buffers in rail vehicles are used to dampen shocks in the longitudinal direction of the vehicle.
  • the damping is produced by an elastic pressure system which is arranged in the generally two-part buffer housing and is supported against the bottoms of the tubular and telescopically displaceable housing parts.
  • the housing parts are braced against each other and against the force of the printing system.
  • the blocks of the housing parts are designed as a pressure plate, the pressure plate of one housing part being firmly connected to the rail vehicle and the pressure plate of the other housing part being designed as a buffer plate.
  • a sleeve buffer of the generic type it is known to fix the two housing parts braced against one another by an inserted friction spring by means of a two-part retaining ring which lies in a groove at the open end of the inner housing part and forms a stop for the outer housing part, and thus the installation length and also to determine the preload force of such a sleeve buffer.
  • the pressure plate of one housing part either the buffer plate or the pressure plate of the other housing part, is fastened to the corresponding housing part with screws.
  • a further known sleeve buffer in which the sleeve and the buffer plate are made from one piece, two semicircular shells of U-shaped cross section serve as holders in the sense described above, one flange of which engages in a groove at the open end of the buffer sleeve and the other flange of which Bypasses the buffer sleeve and rests on a shoulder on the buffer tappet, radially with play to it.
  • the two half-shells are braced against each other with two screws, which are arranged in approaches and the mutually facing ends of the half-shells. Also in this known buffer there is no tightness to be required for an optimal spring function due to the radial play described.
  • the positive locking rotation is usually formed by a feather key, which in a longitudinal groove of the jacket of the outer housing part is inserted and welded to it and which projects into a longitudinal groove of the jacket of the inner housing part and is longitudinally displaceable in this groove.
  • DD-PS 209 780 discloses another sleeve buffer of the generic type, in which the two housing parts of the sleeve buffer are clamped together by means of wedges. These wedges are detachably arranged in the longitudinal slots of the jacket of the outer housing part and protrude into longitudinal slots of the jacket of the inner housing part. The longitudinal slots in the jacket of the inner housing part are designed so that the maximum displaceability of the two housing parts relative to one another is not impaired.
  • This sleeve buffer described above thus uses a component for bracing the two housing parts with one another and for preventing the two housing parts from rotating relative to one another.
  • a disadvantage of this embodiment is, firstly, the type of fastening of the wedges to the jacket of the outer housing part, which requires cams cast or welded onto the jacket of the outer housing part.
  • Another disadvantage is that the longitudinal slot in both the jacket of the outer housing part and the longitudinal slot in the jacket of the inner housing part are open to the sliding surface of the two housing parts and to the inside of the sleeve buffer and thus disadvantageously do not offer any protection against the ingress of moisture and dirt .
  • Another disadvantage is the design of the wedge, which requires a complex production method.
  • the object of the present invention was to design a device of the generic type so that an economical and simple bracing of the two housing parts of the device with one another and a positive locking rotation of the two housing parts against each other is achieved by using a few and simple standard components and that the sliding surface of the two housing parts of the device and the spring of the device against the one are protected from dirt and moisture.
  • this object is achieved in that a longitudinal groove which is limited in length and does not penetrate the jacket is arranged on the outside in the jacket of the inner housing part, that at least one opening is arranged in the jacket of the outer housing part in the region of the longitudinal groove of the inner housing part, and in that in the longitudinal groove a positive locking device is inserted through the opening to the outer housing part.
  • the longitudinally displaceable kit of the housing parts in the relaxation direction is adjustable by moving the positive locking device in the longitudinal groove before the positive locking device is fastened to the outer housing part.
  • the invention advantageously combines the positive locking rotation of the two housing parts of the device with the device for bracing the two housing parts together to form a unit that is simple and economical. Another advantage is that open breakthroughs are avoided both in the jacket of the outer housing part and in the jacket of the inner housing part. The penetration of moisture and dirt is prevented. Another advantage is that the total length of the device can be adjusted precisely against the spring force.
  • the device according to the invention consists essentially of the inner housing part 1 that consists of a tubular jacket 1 a and a pressure plate 1 b closing the jacket on one side, and the outer housing part 2, consisting of a tubular jacket 2 a and one closing this one side Pressure plate 2 b, as well as a not shown, in the interior the device located spring.
  • the shells 1 a and 2 a of the inner and outer housing parts 1 and 2 are telescopically displaceable.
  • at least one opening 5 is provided in the casing 2 a of the outer housing part 2.
  • a positive locking device designed as a key 6 is inserted, and welded to the outer housing part 2 within the opening 5 of the casing 2 a.
  • the length of the longitudinal groove 3 in the inner housing part 1 between key 6 and the pressure plate 1 b of the inner housing part 1 corresponds at least to the maximum stroke of the device.
  • the spring When assembling the device, the spring is inserted into the inner housing part. Then the outer housing part 2 is pushed onto the inner housing part 1 and the feather key 6 is inserted into the longitudinal groove 3. The two housing parts 1 and 2 are then pushed against each other against the force of the spring as far as is necessary to achieve the required overall length of the device. The feather key 6 is then shifted in the longitudinal groove 3 in the direction of the open end of the inner housing part 1 up to the front end of the longitudinal groove 3. The feather key 6 is then welded to the casing 2 a within the opening 5 of the outer housing part. The feather key 6 now acts both as a positive locking rotation of the two housing parts 1 and 2, and as a bracing element of the two housing parts with each other.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)
  • Fluid-Damping Devices (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Air Bags (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

The invention relates to a device for the elastic absorption of shocks, in particular to a plunger buffer for rail vehicles which consists of two housing components which can be clamped to one another counter to the force of a spring, are tubular shaped and can be inserted into one another in a telescopic fashion. The object of the invention consists in achieving for the device a simple clamping of the two housing components to one another and a positively locking antitwist protection of the two housing components with respect to one another using a few simple standard components. This goal is achieved in that a longitudinal groove (3) which is limited in length and does not penetrate the outer casing (1a) is arranged on the outside in the outer casing (1a) of the inner housing component (1), in that at least one opening (5) is arranged in the outer casing (2a) of the outer housing component (2) in the region of the longitudinal groove (3) of the inner housing component (1) and in that a positively locking antitwist protection (6) which is connected through the opening (5) to the outer housing component (2) is inserted in the longitudinal groove (3). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zur federnden Aufnahme von Stoßkräften, insbesondere Hülsenpuffer für Schienenfahrzeuge, die aus zwei gegen die Kraft einer Feder zueinander verspannten rohrförmigen und teleskopartig ineinander verschiebbaren Gehäuseteilen besteht, deren eines Ende jeweils als eine die Feder abstützende Druckplatte ausgebildet ist, die Länge der von Stoßkraft freien Vorrichtung durch eine an einem Gehäuseteil fest angeordnete und in eine Ausnehmung des anderen Gehäuseteils ragende Formschluß-Verdrehsicherung fixiert ist, wobei die Länge der Ausnehmung mindestens der maximalen Verschieb­barkeit der beiden Gehäuseteil zueinander entspricht.The invention relates to a device for resilient absorption of impact forces, in particular sleeve buffers for rail vehicles, which consists of two tubular and telescopically displaceable housing parts braced against each other against the force of a spring, one end of which is designed as a pressure plate supporting the spring, the length of the device free of impact force is fixed by a form-locking anti-rotation device fixedly arranged on one housing part and projecting into a recess in the other housing part, the length of the recess corresponding to at least the maximum displaceability of the two housing parts relative to one another.

Hülsenpuffer bei Schienenfahrzeugen dienen zur Dämpfung von Stößen in Fahr­zeuglängsrichtung. Bekanntlich wird bei diesem Vorrichtungen die Dämpfung durch ein elastisches Drucksystem erzeugt, das in dem in der Regel zweiteiligen Puffergehäuse angeordnet ist und sich gegen die Böden der rohrförmigen und teleskopartig ineinander verschiebbaren Gehäuseteile abstützt. Die Gehäuseteile sind gegeneinander und gegen die Kraft des Drucksystems verspannt. Die Böcke der Gehäuseteile sind als Druckplatte ausgebildet, wobei die Druckplatte eines Gehäuseteils mit dem Schienenfahrzeug fest verbunden ist und die Druckplatte des anderen Gehäuseteils als Pufferteller ausgebildet ist.Sleeve buffers in rail vehicles are used to dampen shocks in the longitudinal direction of the vehicle. As is known, in these devices the damping is produced by an elastic pressure system which is arranged in the generally two-part buffer housing and is supported against the bottoms of the tubular and telescopically displaceable housing parts. The housing parts are braced against each other and against the force of the printing system. The blocks of the housing parts are designed as a pressure plate, the pressure plate of one housing part being firmly connected to the rail vehicle and the pressure plate of the other housing part being designed as a buffer plate.

Bei einem Hülsenpuffer der gattungsgemäßen Art ist es bekannt, die beiden durch eine einliegende Reibungsfeder gegeneinander verspannten Gehäuseteile durch einen zweiteiligen Haltering, der in einer Nut am offenen Ende des inneren Gehäuseteils einliegt und für das äußere Gehäuseteil einen Anschlag bildet, zu fixieren und damit die Einbaulänge und auch die Vorspannkraft eines solchen Hülsenpuffers zu bestimmen. Zur Durchführung dieser Maßnahme ist die Druck­platte eines Gehäuseteils, entweder der Pufferteller oder die Druckplatte des anderen Gehäuseteils mit Schrauben an den entsprechenden Gehäuseteil befestigt. Bei derartigen Schraubverbindungen sind Verformungen des Puffertellers oder der anderen Druckplatte möglich, hervorgerufen durch einen zulässigen Grenz­wert überschreitende, insbesondere schräggerichtete Stoßkräfte, wodurch Staub und Feuchtigkeit in das Puffergehäuse eindringen können, was wiederum die Charakteristik der Feder mindern kann. Im Extremfall kann eine solche Minde­rung auch zu einer Verformung der Pufferhülse im Bereich ihres Überganges zu der Druckplatte hin und in weiter nachteiliger Weise zu Schäden am Fahrzeug führen.In a sleeve buffer of the generic type, it is known to fix the two housing parts braced against one another by an inserted friction spring by means of a two-part retaining ring which lies in a groove at the open end of the inner housing part and forms a stop for the outer housing part, and thus the installation length and also to determine the preload force of such a sleeve buffer. To carry out this measure, the pressure plate of one housing part, either the buffer plate or the pressure plate of the other housing part, is fastened to the corresponding housing part with screws. With such screw connections, deformations of the buffer plate or the other pressure plate are possible, caused by exceeding a permissible limit value, in particular oblique impact forces, as a result of which dust and moisture can penetrate into the buffer housing, which in turn causes the Characteristic of the spring can reduce. In extreme cases, such a reduction can also lead to a deformation of the buffer sleeve in the area of its transition to the pressure plate and, in a further disadvantageous manner, to damage to the vehicle.

Bei einem weiteren bekannten Hülsenpuffer, bei dem die Hülse und der Puffer­teller aus einem Stück gefertigt sind, dienen als Halterung im vorbeschriebe­nen Sinne zwei halbkreisförmige Schalen U-förmigen Querschnitts, deren einer Flansch in eine Nut am offenen Ende der Pufferhülse eingreift und deren ande­rer Flansch die Pufferhülse umgreift und an einem Absatz an dem Pufferstößel, radial mit Spiel zu diesem, anliegt. Die beiden Halbschalen sind mit zwei Schrauben gegeneinander verspannt, die in Ansätzen und den zueinander zugewand­ten Enden der Halbschalen angeordnet sind. Auch bei diesem bekannten Puffer liegt wegen des beschriebenen Radialspiels keine für eine optimale Federfunk­tion zu fordernde Dichtigkeit vor.In a further known sleeve buffer, in which the sleeve and the buffer plate are made from one piece, two semicircular shells of U-shaped cross section serve as holders in the sense described above, one flange of which engages in a groove at the open end of the buffer sleeve and the other flange of which Bypasses the buffer sleeve and rests on a shoulder on the buffer tappet, radially with play to it. The two half-shells are braced against each other with two screws, which are arranged in approaches and the mutually facing ends of the half-shells. Also in this known buffer there is no tightness to be required for an optimal spring function due to the radial play described.

Es ist weiter bei einem Puffer der vorstehend beschriebenen Art bekannt, die Gehäuseteile mit den Druckplatten einteilig auszubilden und mit einer Längs­bewegungen der Gehäuseteile zueinander zulassenden Formschluß-Verdrehsicherung zu versehen sowie mittels einer Gleit-Dichtbuchse abzudichten und teleskopar­tig ineinander zu führen, wobei das eine Gehäuseteil an seinem der Druckplatte abgewandten Ende durch zwei an diesem Ende fest angebrachte, das andere Gehäu­seteil umschließende Halbschalen ergänzt ist, wobei das andere Gehäuseteil an seinem der Formschluß-Verdrehsicherung zugewandten Ende einen Bund aufweist, der zusammen mit den Halbschalen die Halterung bildet und mit einer Aufnahme für die Formschluß-Verdrehsicherung versehen ist, und wobei an seinem anderen Ende ein weiterer, in die Druckplatte übergehender Bund angeordnet ist (DE-PS 26 19 469).It is also known in a buffer of the type described above to form the housing parts in one piece with the pressure plates and to provide a form-locking anti-rotation lock which permits longitudinal movements of the housing parts relative to one another, and to seal and telescope into one another by means of a sliding sealing bushing, the one part of the housing its end facing away from the pressure plate is supplemented by two half-shells fixedly attached to this end, enclosing the other housing part, the other housing part having a collar at its end facing the positive locking device against rotation, which forms the holder together with the half-shells and with a receptacle for the interlocking anti-rotation device is provided, and a further collar passing into the pressure plate is arranged at its other end (DE-PS 26 19 469).

Bei einer weiteren vorbekannten Ausbildung des Puffers vorstehend beschriebener Art (DE-PS 27 08 367) ist es bekannt, die Halbschalen durch einen Einfach ge­schlitzten schmalen Ring zu ersetzen.In a further known design of the buffer of the type described above (DE-PS 27 08 367), it is known to replace the half-shells by a single-slit narrow ring.

Bei den beschriebenen Ausführungen von vorbekannten Hülsenpuffern, wird die Formschluß-Verdrehsicherung in der Regel durch eine Paßfeder gebildet, die in eine Längsnut des Mantels des äußeren Gehäuseteils eingelegt und mit diesem verschweißt ist und die in eine Längsnut des Mantels des inneren Gehäuseteiles ragt und in dieser Nut längsverschieblich ist.In the described designs of known sleeve buffers, the positive locking rotation is usually formed by a feather key, which in a longitudinal groove of the jacket of the outer housing part is inserted and welded to it and which projects into a longitudinal groove of the jacket of the inner housing part and is longitudinally displaceable in this groove.

Bei allen diesen vorbeschriebenen, vorbekannten Hülsenpuffern sind zum Ver­spannen der beiden Gehäuseteile des Hülsenpuffers miteinander und zur Siche­rung gegen Verdrehen der beiden Gehäuseteile gegeneinander zwei voneinander unabhängig wirkende Bauelemente erforderlich. Diese Ausbildungen sind aus die­sem Grund unwirtschaftlich in Herstellung und Montage.In all of these previously described, known sleeve buffers, two components which act independently of one another are required for bracing the two housing parts of the sleeve buffer with one another and for securing against rotation of the two housing parts against one another. For this reason, these training courses are uneconomical to manufacture and assemble.

Durch die DD-PS 209 780 ist ein weiterer Hülsenpuffer der gattungsgemäßen Art bekannt, bei dem die beiden Gehäuseteile des Hülsenpuffers mittels Keilen mit­einander verspannt sind. Diese Keile sind dabei in Längsschlitzen des Mantels des äußeren Gehäuseteils lösbar angeordnet und ragen in Längsschlitze des Mantels des inneren Gehäuseteils. Die Längsschlitze im Mantel des inneren Gehäuseteils sind dabei so ausgebildet, daß die maximale Verschieblichkeit der beiden Gehäuseteile zueinander nicht beeinträchtigt wird. Dieser vorstehend beschriebene Hülsenpuffer verwendet also ein Bauteil zum Verspannen der beiden Gehäuseteile miteinander und zum Verhindern der Verdrehung der beiden Gehäuse­teile gegeneinander. Nachteilig bei dieser Ausführung ist zum einen die Art der Befestigung der Keile am Mantel des äußeren Gehäuseteiles, die am Mantel des äußeren Gehäuseteiles angegossene oder angeschweißte Nocken erfordert. Weiter ist nachteilig, daß der Längsschlitz sowohl in Mantel des äußeren Gehäuseteiles, als auch der Längsschlitz im Mantel des inneren Gehäuseteiles zur Gleitfläche der beiden Gehäuseteile und zum Inneren des Hülsenpuffers offen sind und somit auf nachteilige Weise keine Schutz gegen das Eindringen von Feuchtigkeit und Schmutz bieten. Nachteilig ist weiter die Ausbildung des Keils, der eine auf­wendige Herstellungsweise erfordert.DD-PS 209 780 discloses another sleeve buffer of the generic type, in which the two housing parts of the sleeve buffer are clamped together by means of wedges. These wedges are detachably arranged in the longitudinal slots of the jacket of the outer housing part and protrude into longitudinal slots of the jacket of the inner housing part. The longitudinal slots in the jacket of the inner housing part are designed so that the maximum displaceability of the two housing parts relative to one another is not impaired. This sleeve buffer described above thus uses a component for bracing the two housing parts with one another and for preventing the two housing parts from rotating relative to one another. A disadvantage of this embodiment is, firstly, the type of fastening of the wedges to the jacket of the outer housing part, which requires cams cast or welded onto the jacket of the outer housing part. Another disadvantage is that the longitudinal slot in both the jacket of the outer housing part and the longitudinal slot in the jacket of the inner housing part are open to the sliding surface of the two housing parts and to the inside of the sleeve buffer and thus disadvantageously do not offer any protection against the ingress of moisture and dirt . Another disadvantage is the design of the wedge, which requires a complex production method.

Die Aufgabe vorliegender Erfindung lag darin, eine Vorrichtung der gattungs­gemäßen Art so auszubilden, daß durch Verwendung von wenigen und einfachen Normbauteilen eine wirtschaftliche und einfache Verspannung der beiden Gehäuse­teile der Vorrichtung miteinander und eine Formschluß-Verdrehsicherung der beiden Gehäuseteile gegeneinander erzielt wird und das die Gleitfläche der bei­den Gehäuseteile der Vorrichtung und die Feder der Vorrichtung gegen das Ein­ dringen von Schmutz und Feuchtigkeit geschützt sind.The object of the present invention was to design a device of the generic type so that an economical and simple bracing of the two housing parts of the device with one another and a positive locking rotation of the two housing parts against each other is achieved by using a few and simple standard components and that the sliding surface of the two housing parts of the device and the spring of the device against the one are protected from dirt and moisture.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß außen in den Mantel des inneren Gehäuseteils eine in ihrer Länge begrenzte und den Mantel nicht durch­stoßende Längsnut angeordnet ist, daß in dem Mantel des äußeren Gehäuseteils im Bereich der Längsnut des inneren Gehäuseteils mindestens eine Öffnung ange­ordnet ist und daß in der Längsnut eine durch die Öffnung mit dem äußeren Ge­häuseteil verbundene Formschluß-Verdrehsicherung eingelegt ist. Hierbei ist ge­mäß der Erfindung die Längsverschieblichekit der Gehäuseteile in Entspannungs­richtung durch Verschieben der Formschluß-Verdrehsicherung in der Längsnut vor der Befestigung der Formschluß-Verdrehsicherung an dem äußeren Gehäuseteil ein­stellbar.According to the invention, this object is achieved in that a longitudinal groove which is limited in length and does not penetrate the jacket is arranged on the outside in the jacket of the inner housing part, that at least one opening is arranged in the jacket of the outer housing part in the region of the longitudinal groove of the inner housing part, and in that in the longitudinal groove a positive locking device is inserted through the opening to the outer housing part. Here, according to the invention, the longitudinally displaceable kit of the housing parts in the relaxation direction is adjustable by moving the positive locking device in the longitudinal groove before the positive locking device is fastened to the outer housing part.

Durch die Erfindung wird auf vorteilhafte Weise die Formschluß-Verdrehsicherung der beiden Gehäuseteile der Vorrichtung mit der Einrichtung zum Verspannen der beiden Gehäuseteile miteinander zu einer Einheit zusammengefaßt, die einfach und wirtschaftlich ist. Von Vorteil ist weiter, daß offene Druchbrüche sowohl im Mantel des äußeren Gehäuseteils, als auch im Mantel des inneren Gehäuseteils vermieden werden. Das Eindringen von Feuchtigkeit und Schmutz wird verhindert. Von Vorteil ist weiter, daß die Gesamtlänge der Vorrichtung gegen die Feder­kraft genau einstellbar ist.The invention advantageously combines the positive locking rotation of the two housing parts of the device with the device for bracing the two housing parts together to form a unit that is simple and economical. Another advantage is that open breakthroughs are avoided both in the jacket of the outer housing part and in the jacket of the inner housing part. The penetration of moisture and dirt is prevented. Another advantage is that the total length of the device can be adjusted precisely against the spring force.

Einzelheiten der Erfindung werden in der Zeichnung anhand eines Ausführungs­beispiels näher erläutert.Details of the invention are explained in more detail in the drawing using an exemplary embodiment.

Es zeigen

  • Fig. 1 die Seitenansicht einer Vorrichtung gemäß der Erfindung,
  • Fig. 2 die Vorderansicht der Vorrichtung nach Fig. 1, einhalb im Schnitt,
  • Fig. 3 die Einzelheit "A" der Fig. 2 in vergrößerter Darstellung.
Show it
  • 1 is a side view of a device according to the invention,
  • 2 shows the front view of the device according to FIG. 1, half in section,
  • Fig. 3 shows the detail "A" of FIG. 2 in an enlarged view.

Die Vorrichtung nach der Erfindung besteht im wesentlichen aus dem inneren Gehäuseteil 1, daß aus einem rohrförmigen Mantel 1 a und einer den Mantel ein­seitig abschließenden Druckplatte 1 b besteht, sowie dem äußeren Gehäuseteil 2, bestehend aus einem rohrförmigen Mantel 2 a und einer diesen einseitig ab­schließenden Druckplatte 2 b, sowie einer nicht dargestellten, sich im inneren der Vorrichtung befindlichen Feder. Die Mäntel 1 a und 2 a des inneren, bzw. des äußeren Gehäuseteils 1 und 2 sind teleskopartig ineinander verschiebbar. Außen auf dem Mantel 1 a des inneren Gehäuseteils 1 ist eine Längsnut 3 ange­ordnet. Im Bereich der Längsnut 3 des inneren Gehäuseteils 1 ist mindestens ei­ne Öffnung 5 in dem Mantel 2 a des äußeren Gehäuseteils 2 vorgesehen. In der Nut 3 des inneren Gehäuseteils 1 ist eine als Passfeder 6 ausgebildete Form­schluß-Verdrehsicherung eingelegt, und innerhalb der Öffnung 5 des Mantels 2 a des äußeren Gehäuseteils 2 mit diesem verschweißt. Die Länge der Längsnut 3 in dem inneren Gehäuseteil 1 zwischen Passfeder 6 und der Druckplatte 1 b des inneren Gehäuseteils 1 entspricht dabei mindestens dem maximalen Hub der Vor­richtung.The device according to the invention consists essentially of the inner housing part 1 that consists of a tubular jacket 1 a and a pressure plate 1 b closing the jacket on one side, and the outer housing part 2, consisting of a tubular jacket 2 a and one closing this one side Pressure plate 2 b, as well as a not shown, in the interior the device located spring. The shells 1 a and 2 a of the inner and outer housing parts 1 and 2 are telescopically displaceable. On the outside of the jacket 1 a of the inner housing part 1, a longitudinal groove 3 is arranged. In the area of the longitudinal groove 3 of the inner housing part 1, at least one opening 5 is provided in the casing 2 a of the outer housing part 2. In the groove 3 of the inner housing part 1, a positive locking device designed as a key 6 is inserted, and welded to the outer housing part 2 within the opening 5 of the casing 2 a. The length of the longitudinal groove 3 in the inner housing part 1 between key 6 and the pressure plate 1 b of the inner housing part 1 corresponds at least to the maximum stroke of the device.

Bei der Montage der Vorrichtung wird die Feder in das innere Gehäuseteil ein­gelegt. Anschließend wird das äußere Gehäuseteil 2 auf das innere Gehäuseteil 1 aufgeschoben und die Passfeder 6 in die Längsnut 3 eingelegt. Die beiden Ge­häuseteile 1 und 2 werden dann gegen die Kraft der Feder soweit ineinander ge­schoben, wie es zur Erzielung der geforderten Gesamtlänge der Vorrichtung er­forderlich ist. Die Passfeder 6 wird dann in der Längsnut 3 in Richtung des offenen Endes des inneren Gehäuseteils 1 bis gegen das stirnseitige Ende der Längsnut 3 verschoben. Anschließend wird die Passfeder 6 innerhalb der Öffnung 5 des äußeren Gehäuseteils mit dem Mantel 2 a verschweißt. Die Passfeder 6 wirkt jetzt sowohl als Formschluß-Verdrehsicherung der beiden Gehäuseteile 1 und 2, als auch als Verspannelement der beiden Gehäuseteile miteinander.When assembling the device, the spring is inserted into the inner housing part. Then the outer housing part 2 is pushed onto the inner housing part 1 and the feather key 6 is inserted into the longitudinal groove 3. The two housing parts 1 and 2 are then pushed against each other against the force of the spring as far as is necessary to achieve the required overall length of the device. The feather key 6 is then shifted in the longitudinal groove 3 in the direction of the open end of the inner housing part 1 up to the front end of the longitudinal groove 3. The feather key 6 is then welded to the casing 2 a within the opening 5 of the outer housing part. The feather key 6 now acts both as a positive locking rotation of the two housing parts 1 and 2, and as a bracing element of the two housing parts with each other.

Gemäß der Erfindung ist es denkbar, mindestens eine zweite Passfeder 6 dia­metral zu der ersten Passfeder 6 an der Vorrichtung anzuordnen.According to the invention, it is conceivable to arrange at least one second key 6 diametrically to the first key 6 on the device.

Claims (3)

1. Vorrichtung zur federnden Aufnahme von Stoßkräften, insbesondere Hülsen­puffer für Schienenfahrzeuge, die aus zwei gegen die Kraft einer Feder zuein­ander verspannten rohrförmigen und teleskopartig ineinander verschiebbaren Ge­häuseteilen besteht, deren eines Ende jeweils als eine die Feder abstützende Druckplatte ausgebildet ist, die Länge der von Stoßkraft freien vorrichtung durch eine an einem Gehäuseteil fest angeordnete und in einer Ausnehmung des anderen Gehäuseteils ragende Formschluß-Verdrehsicherung fixiert ist, wobei die Länge der Ausnehmung mindestens der maxialen Verschiebbarkeit der beiden Gehäuseteile zueinander entspricht, dadurch gekennzeichnet, daß außen in den Mantel (1 a) des inneren Gehäuseteils (1) eine in ihrer Länge begrenzte und den Mantel nicht durchstoßenden Längsnut (3) angeordnet ist, daß in dem Man­tel (2 a) des äußeren Gehäuseteils (2) im Bereich der Längsnut (3) des inneren Gehäuseteils (1) mindestens eine Öffnung (5) angeordnet ist und daß in der Längsnut (3) eine durch die Öffnung (5) mit dem äußeren Gehäuseteil (2) verbun­dene Formschluß-Verdrehsicherung (6) eingelegt ist.1. Device for resilient absorption of impact forces, in particular sleeve buffers for rail vehicles, which consists of two tubular and telescopically displaceable housing parts braced against each other against the force of a spring, one end of which is designed as a pressure plate supporting the spring, the length of the impact force free device is fixed by a form-locked anti-rotation device fixedly arranged on one housing part and projecting into a recess in the other housing part, the length of the recess corresponding at least to the maximum displaceability of the two housing parts relative to one another, characterized in that the outer casing (1 a) of the inner housing part (1) a lengthwise groove (3) which is limited in length and does not penetrate the casing is arranged such that in the casing (2a) of the outer casing part (2) in the region of the longitudinal groove (3) of the inner casing part (1) at least one opening (5) is arranged and that in the longitudinal snut (3) is inserted through the opening (5) with the outer housing part (2) connected positive locking device (6). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Längsver­schieblichkeit der Gehäuseteile (1 und 2) in Entspannungsrichtung durch die mit dem äußeren Gehäuseteil (2) verbundene Formschluß-Verdrehsicherung (6) ei­nerseits und durch die dem offenen Ende des inneren Gehäuseteils (1) zugewand­te Stirnseite dessen Längsnut (3) andererseits begrenzt ist.2. Apparatus according to claim 1, characterized in that the longitudinal displaceability of the housing parts (1 and 2) in the relaxation direction by the positive locking device (6) connected to the outer housing part (2) on the one hand and by the open end of the inner housing part (1 ) facing end face whose longitudinal groove (3) is limited on the other hand. 3. Vorrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Längsverschieblichkeit der Gehäuseteile (1 und 2) in Entspannungsrichtung durch Verschieben der Formschluß-Verdrehsicherung (6) in der Längsnut (3) vor der Befestigung der Formschluß-Verdrehsicherung (6) an dem äußeren Gehäuseteil einstellbar ist.3. Device according to claims 1 and 2, characterized in that the longitudinal displaceability of the housing parts (1 and 2) in the direction of relaxation by moving the positive locking device (6) in the longitudinal groove (3) before fastening the positive locking device (6) is adjustable on the outer housing part.
EP88105915A 1987-04-18 1988-04-14 Elastic shock absorption device Expired - Lifetime EP0287944B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105915T ATE68143T1 (en) 1987-04-18 1988-04-14 DEVICE FOR THE SUSPENSION OF IMPACT FORCES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873713206 DE3713206A1 (en) 1987-04-18 1987-04-18 DEVICE FOR SUSPENSIONING FROM SHOCKING FORCES
DE3713206 1987-04-18

Publications (3)

Publication Number Publication Date
EP0287944A2 true EP0287944A2 (en) 1988-10-26
EP0287944A3 EP0287944A3 (en) 1989-04-12
EP0287944B1 EP0287944B1 (en) 1991-10-09

Family

ID=6325911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105915A Expired - Lifetime EP0287944B1 (en) 1987-04-18 1988-04-14 Elastic shock absorption device

Country Status (7)

Country Link
EP (1) EP0287944B1 (en)
AT (1) ATE68143T1 (en)
DD (1) DD284648A5 (en)
DE (2) DE3713206A1 (en)
ES (1) ES2026960T3 (en)
HU (2) HU201271B (en)
PL (1) PL154529B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19619213C2 (en) * 1996-05-13 2000-03-09 Eisenbahntech Halberstadt Gmbh Buffers, especially sleeve buffers for rail vehicles
CN113070346A (en) * 2021-04-26 2021-07-06 浙江龙盛薄板有限公司 Oil tank buffer device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE462538C (en) * 1927-03-06 1928-07-12 Friedrich Reckel Eisenbahnhuelsenbuffer
FR1197420A (en) * 1957-08-30 1959-12-01 Garringtons Ltd Improvements in buffer and coupling mechanisms for railways and the like
US3253718A (en) * 1964-08-10 1966-05-31 Miner Inc W H Buffer
DE2619469A1 (en) * 1976-05-03 1977-11-17 Ringfeder Gmbh Shock absorber for railway drawgear - has cupped washer spring type with telescopic action preventing radial relative movement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE462538C (en) * 1927-03-06 1928-07-12 Friedrich Reckel Eisenbahnhuelsenbuffer
FR1197420A (en) * 1957-08-30 1959-12-01 Garringtons Ltd Improvements in buffer and coupling mechanisms for railways and the like
US3253718A (en) * 1964-08-10 1966-05-31 Miner Inc W H Buffer
DE2619469A1 (en) * 1976-05-03 1977-11-17 Ringfeder Gmbh Shock absorber for railway drawgear - has cupped washer spring type with telescopic action preventing radial relative movement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19619213C2 (en) * 1996-05-13 2000-03-09 Eisenbahntech Halberstadt Gmbh Buffers, especially sleeve buffers for rail vehicles
CN113070346A (en) * 2021-04-26 2021-07-06 浙江龙盛薄板有限公司 Oil tank buffer device

Also Published As

Publication number Publication date
ES2026960T3 (en) 1992-05-16
PL154529B1 (en) 1991-08-30
PL271906A1 (en) 1989-01-23
HU201271B (en) 1990-10-28
DD284648A5 (en) 1990-11-21
DE3865345D1 (en) 1991-11-14
EP0287944A3 (en) 1989-04-12
EP0287944B1 (en) 1991-10-09
ATE68143T1 (en) 1991-10-15
HUT49529A (en) 1989-10-30
DE3713206A1 (en) 1988-10-27

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