DE202007005854U1 - Arrangement for holding coupling arm at central buffer coupling of train carriage, comprises specifically shaped elastic element - Google Patents

Abstract

The central bolt (13) exceeding from the front of the coupling arm (3) is supported against lateral and vertical forces by a carrier (2). An elastic element (6) is positioned between a pressure plate (4) located at the coupling arm (3) and a contact plate (5) at the carrier (2). The elastic element (6) is of a circular shape and thicker in the center (6i) in order to facilitate the adjusting motion between the parts when the carriage is pulled along curved or slightly irregular rails. An independent claim is given for the use of at least one of the units for joining two carriages of a train.

Description

technical area

• - gegen Druck- und Zugbelastung sowie
• - gegen horizontale und vertikale Querkräfte,

abstützt.The present invention relates to a device for the elastic articulated mounting of a coupling arm of a central buffer coupling on a rail vehicle, wherein a support an extension of the coupling arm forming hinge or central pin against forces acting in the horizontal plane and / or in the vertical plane forces, in particular

• - against pressure and tensile load as well
• - against horizontal and vertical shear forces,

supported.

State of technology

To the The state of the art is basic indicate that it combined with central buffer couplings Buffers and clutches are the center of railway vehicles are attached. Have modern automatic central buffer couplings Remote controlled by the engine driver solve or couple, while the connection of the brake lines as well the electrical wires is made. Central buffer couplings are nowadays on multiple units more frequently used, in particular for the connection of only rarely separated Train compositions.

essential Part of conventional central buffer couplings is a stabilizing joint with a flat printing surface at the end of the coupling arm. For side and / or height offsets between the car emanates from the pressure point from the center, so that the desired Stabilization effect is achieved.

critical for the Development of the stabilizing joint is primarily the stabilizing effect in the horizontal plane. In unfavorable track curves and in relation to wheelbase / overhang unfavorable conditions arise - especially at two-axle vehicles - at Longitudinal compressive force between the vehicles to the outside Directed force components, which in extreme cases to derailment to lead can. The use of a stabilization joint improves in this plane the power transmission and the derailment safety very crucial.

In whereas the vertical plane has the effect of a stabilizing joint then come into play when a lighter vehicle over a more heavily loaded one Vehicle under longitudinal pressure force device. Here the resulting compressive force by the use of a stabilizer steering so deflected that the derailment endangered light car down depressed becomes.

The basic form of such, provided for connecting individual cars mehrgliedriger rail vehicles hinge device is, for example, by the document DD 90 334 represented from the prior art.

In such a hinge device, as similar to the document EP 1 086 870 A2 can be seen from the prior art, there is a support of the coupling arm relative to the carrier via a spherical surface; For example, the document discloses EP 1 086 870 A2 a train-pressure coupling rod device for rail vehicles with all-round directional joint effect, comprising a support bearing for rigid connection with the undercarriage of the rail vehicle, spring elements for generating a spring travel and a damping and ball joint-like bearing parts for realizing a positive tilting movement of the coupling rod ends between support bearings and coupling rods.

In order to achieve a restoring effect with slightly larger vertical and / or horizontal deflection movements, is already in the document EP 1 407 953 A1 From the prior art proposed to use damping elements, which are surrounded by a support cage, at its outer edges are support and tilting points, which have a distance to the respective contact surface, that with vertical and / or horizontal deflection after a certain angle a limitation or provision is made.

These embodiment However, based on the fact that at the contact surfaces between the steel edges of the support cage and the printing plate gives a metallic contact; especially at larger vertical and / or horizontal deflection movements leads however, such metallic contact is often undesirable Noise, which conveyed both the travel enjoyment of in the rail vehicle Persons impaired as well - in particular at night - the Rest need of near of railway lines living and / or working people contrary acts.

Presentation of the present Invention: task, solution, advantages

Based on the disadvantages and inadequacies set out above and in appreciation of the outlined prior art, the present invention has the object, a device of the type mentioned so that in a central buffer coupling a direct metallic contact, especially steel on steel, is avoided and at a certain stop Steering angle uses an elastic suspension.

These The object is achieved by a device with the specified in claim 1 Characteristics solved. Advantageous embodiments and expedient developments of the present Invention are characterized in the respective subclaims.

• - gegen Druck- und Zugbelastung sowie
• - gegen horizontale und vertikale Querkräfte

abstützt.The present invention is basically based on a pad linkage with stabilization, that is, that the coupling arm of a central buffer coupling is elastically and / or articulated, wherein a support an extension of the coupling arm forming central pivot pin against deflections in the horizontal plane and / or forces acting in the vertical plane, for example

• - against pressure and tensile load as well
• - against horizontal and vertical shear forces

supported.

Around an immediate metallic contact, especially steel Steel, avoid and order at a certain angle of horizontal Deflection and / or vertical deflection elastic cushioning to use, according to the invention is at least one elastic Element provided, which is arranged on the coupling arm pressure plate across from an abutment plate of the carrier supported.

• – in Bezug auf die Symmetrieachse des Kupplungsarms im Wesentlichen rotationssymmetrisch ausgebildet sein und/oder
• – im Wesentlichen konzentrisch zur Symmetrieachse des Kupplungsarms angeordnet sein.

In order to ensure a homogeneous damping and restoring action of the elastic element in any direction of horizontal and / or vertical deflection, the elastic element may be made according to combinable or mutually independent advantageous embodiments of the present invention

• Be substantially rotationally symmetrical with respect to the symmetry axis of the coupling arm and / or
• - Be arranged substantially concentric with the axis of symmetry of the coupling arm.

• – einen inneren Stützabschnitt und
• – einen gegenüber dem inneren Stützabschnitt schmaler ausgebildeten, den inneren Stützabschnitt umgebenden äußeren Stützabschnitt

auf.In a preferred embodiment of the present invention, the elastic element

• - An inner support section and
• - A relative to the inner support portion narrower, surrounding the inner support portion outer support portion

on.

• – die Druckplatte mindestens einen an den umlaufenden äußeren Stützabschnitt, insbesondere an den der Druckplatte zugewandten Teil des umlaufenden äußeren Stützabschnitts, anlegbaren umlaufenden Abstützabschnitt aufweist und/oder
• – die Anlageplatte mindestens einen an den umlaufenden äußeren Stützabschnitt, insbesondere an den der Anlageplatte zugewandten Teil des umlaufenden äußeren Stützabschnitts, anlegbaren umlaufenden Abstützabschnitt aufweist,

When in advantageous, combinable or independent embodiments of the present invention

• - The pressure plate has at least one of the peripheral outer support portion, in particular on the pressure plate facing part of the peripheral outer support portion, applicable circumferential support portion and / or
• The abutment plate has at least one circumferential support section which can be applied to the peripheral outer support section, in particular to the part of the peripheral outer support section facing the abutment plate,

so this narrower outer section of the elastic element in appropriate training of the present invention so with the corresponding embodiment the pressure plate and / or the contact plate cooperate, that initially a relative Free deflection and / or a relatively free pivoting is reached.

at Contact of the elastic element (the elastic section) with the support elements of the Pressure plate and / or the contact plate is then first Restoring moment generated, which increases with further deflection and / or further compression strengthened because the spring travel of the narrower portion of the elastic element then severely limits the deflection or the pivoting.

Of the Advantage of the construction set forth above is that not only relatively simple components can be used, but also a low-noise and space-saving stabilization of the central buffer joint achieved becomes.

The The present invention ensures its rectilinear flow of forces and with their compact design the full fulfillment of the task and contributes to that in that even very lightweight cars in railway operations u.a. requirements with regard to running safety, in particular with regard to derailment safety, fulfill.

The Finally, the present invention relates to the use of at least a device according to the above set forth manner for connecting single cars mehrgliedriger rail vehicles, in particular of rail freight cars units or Railcar units.

Short description the drawings

As already discussed above, there are various possibilities for embodying and developing the teaching of the present invention in an advantageous manner. For this purpose, reference is made on the one hand to the claims subordinate to claim 1, on the other hand further embodiments, features and advantages of the present invention will be described below with reference to the two 1 or by 2 illustrated embodiments explained in more detail. In a purely perspective view:

1 a schematic longitudinal sectional view of an embodiment of a device according to the present invention; and

2 an embodiment of a device according to the present invention in a schematic half-longitudinal view.

best way for execution of the present invention

• – sowohl auf die in 1 dargestellte erste exemplarische Ausgestaltung einer Vorrichtung 100 gemäß der vorliegenden Erfindung
• – als auch auf die in 2 dargestellte zweite exemplarische Ausgestaltung einer Vorrichtung 100' gemäß der vorliegenden Erfindung.

In order to avoid unnecessary repetition, the following explanations relate to the embodiments, features and advantages of the present invention (unless stated otherwise).

• - both on in 1 illustrated first exemplary embodiment of a device 100 according to the present invention
• - as well as on in 2 illustrated second exemplary embodiment of a device 100 ' according to the present invention.

The device 100 (see. 1 ) respectively. 100 ' (see. 2 ) comes when connecting single car multi-unit rail vehicles 1 for use; special is the device 100 respectively. 100 ' in this case for elastic articulated bearings of a coupling arm 3 a central buffer coupling on the rail vehicle 1 , in particular on a railway freight wagon or on a railcar.

• - gegen Druck- und Zugbelastung sowie
• - gegen horizontale und vertikale Querkräfte,

ab.A carrier 2 supports the extension of the coupling arm 3 forming joint or central bolt 13 against forces acting on deflection in the horizontal plane and / or in the vertical plane, in particular

• - against pressure and tensile load as well
• - against horizontal and vertical shear forces,

from.

In order to avoid an immediate metallic contact, especially steel on steel, and at a certain angle α (see. 1 ) of the horizontal deflection and / or the vertical deflection to use an elastic suspension is one on the coupling arm 3 arranged pressure plate 4 via an elastic element 6 (see. 1 ) respectively. 6 ' (see. 2 ) against a contact plate 5 of the carrier 2 supported.

• – in Bezug auf die Längsrichtung (Symmetrieachse S des Kupplungsarms 3) rotationssymmetrisch ausgebildet und
• – konzentrisch zur Längsrichtung (Symmetrieachse S des Kupplungsarms 3) angeordnet.

This elastic element 6 (see. 1 ) respectively. 6 ' (see. 2 )

• - With respect to the longitudinal direction (symmetry axis S of the coupling arm 3 ) rotationally symmetrical and
• - Concentric to the longitudinal direction (symmetry axis S of the coupling arm 3 ) arranged.

As in particular the enlarged detail view in 1 is removable in the case of 1 illustrated first embodiment of the device 100 the elastic element 6 in the middle 6i relatively wide (thick), to a suspension in the longitudinal direction, that is in the direction of the axis of symmetry S of the coupling arm 3 to achieve and to allow the pivoting by the angle α.

The narrower section outside (= outer ring-shaped or circumferential section 6a ) is designed so that a contact only after a certain pivoting, that is, only at larger deflection angles α. These are two special support sections 14 respectively. 15 on the printing plate 4 or on the investment plate 5 intended.

In the case of 2 illustrated second embodiment of the device 100 ' is just one of the pressure plate 4 associated larger support section 14 ' provided, and the elastic element 6 ' so far has an asymmetrical profile; than the inner support section 6i ' surrounding outer support section 6a ' in his the attachment plate 5 facing end portion an annular circumferential recess 16 ' having.

• – bei kleinen Auslenkwinkeln α der Kupplungsarm 3 gegenüber dem Träger 2 relativ frei auslenkbar und relativ frei verschwenkbar ist und
• – bei größeren Auslenkwinkeln α, insbesondere bei Kontakt des elastischen Elements 6 bzw. 6'
• – mit dem Abstützabschnitt 14 bzw. 14' der Druckplatte 4 (beide Ausführungsbeispiele 100 und 100') und
• – mit dem Abstützabschnitt 15 der Anlageplatte 5 (nicht zweites Ausführungsbeispiel 100')

ein Rückstellmoment entsteht, das sich bei noch größeren Auslenkwinkeln α oder bei Zusammendrücken von Träger 2 und Kupplungsarm 3 zunehmend verstärkt.Common to both embodiments of the device 100 respectively. 100 ' in that the outer support section 6a respectively. 6a ' so with the pressure plate 4 and / or with the contact plate 5 works together that

• - At small deflection angles α of the coupling arm 3 opposite the carrier 2 is relatively freely deflectable and relatively freely swiveling and
• - At larger deflection angles α, in particular upon contact of the elastic element 6 respectively. 6 '
• - With the support section 14 respectively. 14 ' the printing plate 4 (both embodiments 100 and 100 ' ) and
• - With the support section 15 the investment plate 5 (not second embodiment 100 ' )

a restoring moment arises, which is at even greater deflection angles α or when compressing carrier 2 and coupling arm 3 increasingly reinforced.

100

Device (= first embodiment; 1 )

100 '

Device (= second embodiment; 2 )

1

Rail vehicle, in particular rail freight car unit or railcar unit

2

carrier

3

coupling arm

13

Joint bolt or central bolt of the coupling arm 3

4

printing plate

14

Supporting section of the pressure plate 4

5

bearing plate

15

Support section of the contact plate 5

6

elastic element or elastic section (= first embodiment; 1 )

6a

outer support portion of the elastic element 6 (= first embodiment; 1 )

6i

inner support section of the elastic element 6 (= first embodiment; 1 )

6 '

elastic element (= second embodiment; 2 )

6a '

outer support portion of the elastic element 6 ' (= second embodiment; 2 )

16 '

Recess of the outer support portion 6a ' (= second embodiment; 2 )

6i '

inner support section of the elastic element 6 ' (= second embodiment; 2 )

α

angle of deflection

S

Longitudinal direction or symmetry axis of the coupling arm 3

Claims (10)

Contraption ( 100 ; 100 ' ) for the elastic articulated mounting of a coupling arm ( 3 ) of a central buffer coupling on a rail vehicle ( 1 ), whereby a carrier ( 2 ) an extension of the coupling arm ( 3 ) forming joint or central pin ( 13 ) against forces acting on deflection in the horizontal plane and / or in the vertical plane, in particular - against compressive and tensile load and - against horizontal and vertical lateral forces, supported, characterized in that one on the coupling arm ( 3 ) arranged pressure plate ( 4 ) via at least one elastic element ( 6 ; 6 ' ) against a bearing plate ( 5 ) of the carrier ( 2 ) is supported. Device according to claim 1, characterized in that the elastic element ( 6 ; 6 ' ) with respect to the symmetry axis (S) of the coupling arm ( 3 ) is formed substantially rotationally symmetrical. Device according to claim 1 or 2, characterized in that the elastic element ( 6 ; 6 ' ) substantially concentric with the axis of symmetry (S) of the coupling arm ( 3 ) is arranged. Device according to at least one of claims 1 to 3, characterized in that the elastic element ( 6 ; 6 ' ) - an inner support section ( 6i ; 6i ' ) and - one opposite the inner support section ( 6i ; 6i ' ) narrower, the inner support portion ( 6i ; 6i ' ) surrounding outer support section ( 6a ; 6a ' ) having. Device according to claim 4, characterized in that the pressure plate ( 4 ) at least one to the circumferential outer support portion ( 6a ; 6a ' ), in particular to the pressure plate ( 4 ) facing part of the circumferential outer support portion ( 6a ; 6a ' ), applyable circumferential support section ( 14 ; 14 ' ) having. Device according to claim 4 or 5, characterized in that the abutment plate ( 5 ) at least one to the circumferential outer support portion ( 6a ; 6a ' ), in particular on the abutment plate ( 5 ) facing part of the circumferential outer support portion ( 6a ; 6a ' ), applyable circumferential support section ( 15 ) having. Device according to at least one of claims 4 to 6, characterized in that the outer support section ( 6a ; 6a ' ) so with the pressure plate ( 4 ) and / or with the contact plate ( 5 ) cooperates, that - at small deflection angles (α) of the coupling arm ( 3 ) relative to the carrier ( 2 ) is relatively freely deflectable and / or relatively freely pivotable and - at larger deflection angles (α), in particular upon contact of the elastic element ( 6 ; 6 ' ) - with the support section ( 14 ; 14 ' ) of the printing plate ( 4 ) and / or - with the support section ( 15 ) of the abutment plate ( 5 ), a restoring moment arises, which occurs at even greater deflection angles (α) and / or upon compression of the carrier ( 2 ) and coupling arm ( 3 ) increasingly reinforced. Device according to at least one of claims 1 to 7, characterized in that the elastic element ( 6 ' ) has an asymmetrical profile. Device according to at least one of claims 1 to 8, characterized in that the inner support portion ( 6i ' ) surrounding outer support section ( 6a ' ) in its attachment plate ( 5 ) end region facing an annular circumferential recess ( 16 ' ) having. Use of at least one device ( 100 ; 100 ' ) according to at least one of claims 1 to 9 for connecting single wagons of multi-unit rail vehicles ( 1 ), especially iron rail freight car units or railcar units.