EP0799144B1 - Rail vehicle brake device - Google Patents

Rail vehicle brake device Download PDF

Info

Publication number
EP0799144B1
EP0799144B1 EP95942749A EP95942749A EP0799144B1 EP 0799144 B1 EP0799144 B1 EP 0799144B1 EP 95942749 A EP95942749 A EP 95942749A EP 95942749 A EP95942749 A EP 95942749A EP 0799144 B1 EP0799144 B1 EP 0799144B1
Authority
EP
European Patent Office
Prior art keywords
braking
lever
shoe
wheel
reaction member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95942749A
Other languages
German (de)
French (fr)
Other versions
EP0799144A1 (en
Inventor
Jean-Michel Deramaux
Bernard Caron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Forges De Fresnes Ste
Original Assignee
Forges De Fresnes Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Forges De Fresnes Ste filed Critical Forges De Fresnes Ste
Publication of EP0799144A1 publication Critical patent/EP0799144A1/en
Application granted granted Critical
Publication of EP0799144B1 publication Critical patent/EP0799144B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
    • B61H11/14—Combinations of different types of brakes, e.g. brake blocks acting on wheel-rim combined with disc brakes

Definitions

  • the present invention relates to a braking device for a vehicle rail, and more particularly such a device comprising means of traction arranged to apply a brake shoe to a braking surface secured to a vehicle wheel.
  • the brake shoe acts by friction on the tire wheel to cause braking.
  • the means of traction are generally consist of a triangular member made of metal bars and called a triangle of brake. This triangle is isosceles with its vertex in the plane of symmetry of the wagon and its two other angles in the vicinity of two of the wheels of the wagon mounted on the same axis.
  • the braking force is applied to the top of the brake triangle in the aforementioned plane of symmetry, and this force is equally distributed between the two skids to apply them to the corresponding wheel tread to cause braking from the wagon.
  • the present invention aims to provide braking means improved for railway vehicles. More specifically, it aims to provide a braking device combining the simplicity and robustness of traditional brakes with a more efficient braking. It also aims to provide such a device which can use the traditional brake triangle brake chain. It aims at in addition to increasing the braking capacity of such brake chains without increase the braking force applied to the brake triangle.
  • the invention has the effect of a braking device according to the claim 1.
  • Such a device has the advantage of being particularly compact and immediately adaptable to existing braking systems.
  • the braking surfaces are formed on the wheel itself.
  • FIG. 1 a brake triangle of known type, formed of two metal bars 1 of the same length and a third bar 2.
  • a cylinder not represented makes it possible to exercise at point 3 common to the two bars 1 an illustrated effort by arrow F.
  • Points 4 common on the one hand to bar 2 and on the other hand to each bars 1 respectively, are located in the vicinity of each of the wheels 5 carried by the same wheel shaft of the vehicle. When the tensile force F is exercised at point 3, points 4 approach the wheels 5
  • Points 4 are in fact articulation axes for levers 6 each comprising two lever arms 7 and 8 respectively, at right angles. Arms lever 7 are substantially parallel to the axes of the wheels 5, while the arms 8 are substantially parallel to the axis of the vehicle.
  • the lever arms 7 carry, at their end opposite to the articulation 4, a brake shoe 9 via a shoe holder (not shown).
  • the arms 8 carry, at their end opposite to the articulation 4, a shoe 10
  • the shoes are made in known manner of cast iron and the pads 10 of friction material composite.
  • the annular bands 12 are made of any friction material suitable. They are coaxial with the wheels 5 to which they are fixed and of which they are therefore integral in rotation
  • the invention makes it possible to apply a first force of F / 2 braking on the wheel treads and in addition a second force of braking on the strips 12.
  • the two braking forces exerted on the two bands 12 are directed outward and therefore opposite, which ensures the balance of the brake triangle.
  • the lever arm opposite the lever arm 7, namely the lever arm 8 ' carries a shoe 10' which cooperates with a additional braking surface 12 'cylindrical, coaxial with the wheel 5.
  • the bandage 11 exerts on the shoe 9 a reaction force tending to rotate the lever 6 around the joint 4 in the direction of the arrow F1.
  • Skate 10 ' is therefore applied against the surface 12', which, here too, provides a second braking force
  • Figures 3 to 6 differs from that of Figure 1 essentially by the fact that it comprises two levers 6 'and 6 "mounted on joints 4 'and 4 ". These joints are here carried on a part 19 mounted at the end of the bars 1 and 2 and consist of yokes 20 mounted on the axes 4 ' and 4 ".
  • the pad holders 21 are mounted on the lever arms 8 'and 8" and support themselves the friction pads 10a and 10b.
  • the lever arms 7 'and 7 here bear protrusions at their ends return 21 'and 21 "together receiving an axis 22 horizontal and parallel to the axis of wheels, and supporting the pad holder 9 '.
  • the axis 22 therefore connects the ends lever arms 7 'and 7 "and the shoe holder 9'.
  • the wheel 5 here carries two complementary friction surfaces on which act two pads 10a and 10b. It thus acts as the brake disc at known discs.
  • the reaction member is a fixed member 20, integral with the supporting structure of the wheels, and therefore either of the wagon body or structure of the bogie.
  • This member 20 supports two ears fixing 21 and 22 which will be seen below.
  • An angle-shaped operating lever 23 is pivotally mounted in its midpoint on the ear 21, around an axis 24.
  • the ends of bars 1 and 2 support a fitting 29 in which an oblong orifice 30 is formed.
  • An axis 31 passes through the holes 32 of the yoke 26 and orifice 30.
  • Two levers 33 and 33 ' have one of their ends which supports a shoe brakes 34 and 34 'respectively cooperating with braking surfaces 35 and 35 'formed on the flanks of the wheel 36.
  • the surfaces 35 and 35' could be formed on a disc mounted fixed on the axis of the wheel 36.
  • a connecting rod 37 connects the end of the branch 27 of the bracket 23 to the end of the lever 33 opposite the shoe 34.
  • this connecting rod is articulated at one of its ends on an axis 38 crossing the hole 28 and at its other end on an axis 39 mounted on the aforementioned end of the lever 33, opposite the shoe 34.
  • the lever 33 ' has its end opposite the shoe 34' articulated on the ear 22 of the fixed member 20.
  • the middle zones of the levers 33 and 33 ' are connected by connecting rods 41 fixed to axes 42 and 42 'respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Regulating Braking Force (AREA)

Abstract

PCT No. PCT/FR95/01674 Sec. 371 Date Sep. 24, 1997 Sec. 102(e) Date Sep. 24, 1997 PCT Filed Dec. 15, 1995 PCT Pub. No. WO96/19372 PCT Pub. Date Jun. 27, 1996A braking device for a railroad vehicle including traction bars is arranged to apply a braking pad on a braking surface affixed to a wheel of the vehicle. The braking device includes a reaction member, at least one lever arranged to cooperate with the reaction member, connecting devices between the traction bars means and the lever, the braking pad being borne by the lever to be applied on the braking surface by pivoting the lever under the action of the traction bars and of the reaction member.

Description

La présente invention concerne un dispositif de freinage pour véhicule ferroviaire, et plus particulièrement un tel dispositif comprenant des moyens de traction agencés pour appliquer un patin de freinage sur une surface de freinage solidaire d'une roue du véhicule.The present invention relates to a braking device for a vehicle rail, and more particularly such a device comprising means of traction arranged to apply a brake shoe to a braking surface secured to a vehicle wheel.

On connaít déjà de tels dispositifs, qui sont plus particulièrement utilisés sur les wagons de marchandises. Le patin de freinage agit par friction sur le bandage de la roue pour provoquer le freinage. Les moyens de traction sont généralement constitués d'un organe triangulaire réalisé en barres métalliques et dénommé triangle de frein. Ce triangle est isocèle avec son sommet dans le plan de symétrie du wagon et ses deux autres angles dans le voisinage de deux des roues du wagon montées sur un même axe.We already know such devices, which are more particularly used on freight cars. The brake shoe acts by friction on the tire wheel to cause braking. The means of traction are generally consist of a triangular member made of metal bars and called a triangle of brake. This triangle is isosceles with its vertex in the plane of symmetry of the wagon and its two other angles in the vicinity of two of the wheels of the wagon mounted on the same axis.

La force de freinage est appliquée au sommet du triangle de frein dans le plan de symétrie précité, et cette force se répartit également entre les deux patins pour les appliquer sur le bandage de roue correspondant pour provoquer le freinage du wagon.The braking force is applied to the top of the brake triangle in the aforementioned plane of symmetry, and this force is equally distributed between the two skids to apply them to the corresponding wheel tread to cause braking from the wagon.

On connaít également, généralement utilisés sur les motrices et les voitures de voyageurs, des freins à disques du même type que ceux utilisés par exemple sur les véhicules automobiles. Ces freins présentent l'avantage de fournir un freinage très énergique, et d'être plus silencieux et de générer moins de vibrations que les freins traditionnels agissant sur les bandages de roues. Ils sont toutefois très onéreux et fonctionnent d'une manière totalement différente. Ils ne sont donc pas adaptables aux véhicules ferroviaires munis de triangles de frein.We also know, generally used on motor cars and passenger cars, disc brakes of the same type as those used by example on motor vehicles. These brakes have the advantage of providing very vigorous braking, and being quieter and generating less vibration than traditional brakes acting on wheel treads. They are however very expensive and work in a completely different way. So they are not adaptable to railway vehicles fitted with brake triangles.

On connaít enfin par le document FR-A-2 194 601 ainsi que par US-A-3,791,491 un dispositif selon le préambule de la revendication 1. Ce dispositif comporte toutefois un ensemble articulé complexe.Finally, from document FR-A-2 194 601 and from US-A-3,791,491, a device is known according to preamble of claim 1. However, this device comprises a set articulated complex.

La présente invention vise à fournir des moyens de freinage perfectionnés pour véhicules ferroviaires. Plus particulièrement, elle vise à fournir un dispositif de freinage alliant la simplicité et la robustesse des freins traditionnels à un freinage plus efficace. Elle a également pour but de procurer un tel dispositif qui puisse utiliser la chaíne de freinage traditionnelle à triangle de frein. Elle vise en outre à augmenter la capacité de freinage de telles chaínes de freinage sans augmenter la force de freinage appliquée au triangle de frein. The present invention aims to provide braking means improved for railway vehicles. More specifically, it aims to provide a braking device combining the simplicity and robustness of traditional brakes with a more efficient braking. It also aims to provide such a device which can use the traditional brake triangle brake chain. It aims at in addition to increasing the braking capacity of such brake chains without increase the braking force applied to the brake triangle.

A cet effet, l'invention a pour effet un dispositif de freinage selon la revendication 1.To this end, the invention has the effect of a braking device according to the claim 1.

Un tel dispositif présente l'avantage d'être particulièrement compact et immédiatement adaptable aux systèmes de freinage existants.Such a device has the advantage of being particularly compact and immediately adaptable to existing braking systems.

Dans un mode de réalisation particulier, les surfaces de freinage sont formées sur la roue elle-même. In a particular embodiment, the braking surfaces are formed on the wheel itself.

On décrira maintenant, à titre d'exemple non limitatif, quelques dispositifs de freinage, en référence aux dessins schématiques annexés dans lesquels:

  • la figure 1 illustre un premier dispositif de freinage non revendiqué;
  • la figure 2 illustre un deuxième dispositif de freinage non revendiqué;
  • la figure 3 est une vue de dessus partielle d'un troisième dispositif de freinage non revendiqué;
  • la figure 4 en est une vue de face;
  • les figures 5 et 6 sont des vues en perspective d'un des leviers des figures 3 et 4;
  • la figure 7 est une vue de dessus d'un mode réalisation de l'invention; et
  • les figures 8 et 9 sont des vues en perspective de deux des organes du dispositif de la figure 7
A few braking devices will now be described, by way of nonlimiting example, with reference to the appended schematic drawings in which:
  • Figure 1 illustrates a first unclaimed braking device;
  • Figure 2 illustrates a second unclaimed braking device;
  • Figure 3 is a partial top view of a third unclaimed braking device;
  • Figure 4 is a front view;
  • Figures 5 and 6 are perspective views of one of the levers of Figures 3 and 4;
  • Figure 7 is a top view of an embodiment of the invention; and
  • Figures 8 and 9 are perspective views of two of the organs of the device of Figure 7

On voit sur la figure 1 un triangle de frein de type connu, formé de deux barres métalliques 1 de même longueur et d'une troisième barre 2. Un vérin non représenté permet d'exercer au point 3 commun aux deux barres 1 un effort illustré par la flèche F.We see in Figure 1 a brake triangle of known type, formed of two metal bars 1 of the same length and a third bar 2. A cylinder not represented makes it possible to exercise at point 3 common to the two bars 1 an illustrated effort by arrow F.

Les points 4 communs d'une part à la barre 2 et d'autre part à chacune des barres 1 respectivement, sont situés au voisinage de chacune des roues 5 portées par un même arbre de roue du véhicule. Lorsque l'effort de traction F est exercé au point 3, les points 4 se rapprochent des roues 5Points 4 common on the one hand to bar 2 and on the other hand to each bars 1 respectively, are located in the vicinity of each of the wheels 5 carried by the same wheel shaft of the vehicle. When the tensile force F is exercised at point 3, points 4 approach the wheels 5

Les points 4 sont en fait des axes d'articulation pour des leviers 6 comportant chacun deux bras de levier 7 et 8 respectivement, à angle droit. Les bras de levier 7 sont sensiblement parallèles aux axes des roues 5, tandis que les bras 8 sont sensiblement parallèles à l'axe du véhicule.Points 4 are in fact articulation axes for levers 6 each comprising two lever arms 7 and 8 respectively, at right angles. Arms lever 7 are substantially parallel to the axes of the wheels 5, while the arms 8 are substantially parallel to the axis of the vehicle.

Les bras de levier 7 portent, à leur extrémité opposée à l'articulation 4, un patin de freinage 9 par l'intermédiaire d'un porte-patin (non représenté). De même, les bras 8 portent, à leur extrémité opposée à l'articulation 4, un patin 10 Les patins sont réalisées de façon connue en fonte et les patins 10 en matériau de friction composite.The lever arms 7 carry, at their end opposite to the articulation 4, a brake shoe 9 via a shoe holder (not shown). Likewise, the arms 8 carry, at their end opposite to the articulation 4, a shoe 10 The shoes are made in known manner of cast iron and the pads 10 of friction material composite.

Lorsqu'une traction est exercée sur le triangle de frein, les patins 9 viennent, de façon connue, au contact des bandages 11 des roues 5, ce qui a pour effet de fournir une première force de freinage. Par réaction, les leviers 6 pivotent dans le sens des flèches F1. Dans ce mouvement, chaque patin 10 vient en contact avec une bande annulaire de friction 11 située dans un plan parallèle au plan de la roue, ce qui a pour effet de fournir une deuxième force de freinageWhen traction is exerted on the brake triangle, the pads 9 come, in known manner, into contact with the tires 11 of the wheels 5, which has the effect of providing a first braking force. By reaction, the levers 6 pivot in the direction of the arrows F1. In this movement, each shoe 10 comes into contact with an annular friction strip 11 situated in a plane parallel to the plane of the wheel, which has the effect of providing a second braking force

Les bandes annulaires 12 sont réalisées en tout matériau de friction convenable. Elles sont coaxiales aux roues 5 auxquelles elles sont fixées et dont elles sont donc solidaires en rotationThe annular bands 12 are made of any friction material suitable. They are coaxial with the wheels 5 to which they are fixed and of which they are therefore integral in rotation

On constate donc que, pour un même effort de traction F que dans les dispositifs de l'art antérieur, l'invention permet d'appliquer une première force de freinage de F/2 sur les bandages de roues et en outre une deuxième force de freinage sur les bandes 12. Les deux forces de freinage exercées sur les deux bandes 12 sont dirigées vers l'extérieur et donc opposées, ce qui assure l'équilibre du triangle de frein.It can therefore be seen that, for the same tensile force F as in the devices of the prior art, the invention makes it possible to apply a first force of F / 2 braking on the wheel treads and in addition a second force of braking on the strips 12. The two braking forces exerted on the two bands 12 are directed outward and therefore opposite, which ensures the balance of the brake triangle.

Dans le mode de réalisation de la figure 2, le bras de levier opposé au bras de levier 7, à savoir le bras de levier 8', porte un patin 10' qui coopère avec une surface de freinage complémentaire 12' cylindrique, coaxiale à la roue 5. Comme précédemment, le bandage 11 exerce sur le patin 9 une force de réaction tendant à faire pivoter le levier 6 autour de l'articulation 4 dans le sens de la flèche F1. Le patin 10' est donc appliqué contre la surface 12', ce qui, ici aussi, fournit une deuxième force de freinageIn the embodiment of FIG. 2, the lever arm opposite the lever arm 7, namely the lever arm 8 ', carries a shoe 10' which cooperates with a additional braking surface 12 'cylindrical, coaxial with the wheel 5. As previously, the bandage 11 exerts on the shoe 9 a reaction force tending to rotate the lever 6 around the joint 4 in the direction of the arrow F1. Skate 10 'is therefore applied against the surface 12', which, here too, provides a second braking force

Le mode de réalisation des figures 3 à 6 diffère de celui de la figure 1 essentiellement par le fait'qu'il comprend deux leviers 6' et 6" montés sur des articulations 4' et 4". Ces articulations sont ici portées sur une pièce 19 montée à l'extrémité des barres 1 et 2 et sont constituées de chapes 20 montées sur les axes 4' et 4". Les porte-patin 21 sont montés sur les bras de levier 8' et 8" et supportent eux-mêmes les patins de friction 10a et 10b.The embodiment of Figures 3 to 6 differs from that of Figure 1 essentially by the fact that it comprises two levers 6 'and 6 "mounted on joints 4 'and 4 ". These joints are here carried on a part 19 mounted at the end of the bars 1 and 2 and consist of yokes 20 mounted on the axes 4 ' and 4 ". The pad holders 21 are mounted on the lever arms 8 'and 8" and support themselves the friction pads 10a and 10b.

Les bras de levier 7' et 7" portent ici à leur extrémité des saillies en retour 21' et 21" recevant ensemble un axe 22 horizontal et parallèle à l'axe des roues, et supportant le porte-patin 9'. L'axe 22 relie par conséquent les extrémités des bras de levier 7' et 7" et le porte-patin 9'.The lever arms 7 'and 7 "here bear protrusions at their ends return 21 'and 21 "together receiving an axis 22 horizontal and parallel to the axis of wheels, and supporting the pad holder 9 '. The axis 22 therefore connects the ends lever arms 7 'and 7 "and the shoe holder 9'.

La roue 5 porte ici deux surfaces de friction complémentaires sur lesquelles agissent deux patins 10a et 10b. Elle fait ainsi office du disque des freins à disques connus.The wheel 5 here carries two complementary friction surfaces on which act two pads 10a and 10b. It thus acts as the brake disc at known discs.

Lorsqu'une traction est exercée sur le triangle de frein, le patin 9 est pressée sur le bandage 11 qui repousse l'axe 22 et fait pivoter les leviers 6' et 6" autour des axes 4' et 4" de sorte que les patins 10a et 10b viennent s'appliquer sur les bandes de freinage complémentaires.When traction is exerted on the brake triangle, the pad 9 is pressed on the tire 11 which pushes the axis 22 and rotates the levers 6 'and 6 " around the axes 4 'and 4 "so that the pads 10a and 10b are applied on the additional braking bands.

Dans le mode de réalisation des figures 7 à 9, l'organe de réaction est un organe fixe 20, solidaire de la structure porteuse des roues, et donc soit de la caisse du wagon soit de la structure du boggie. Cet organe 20 supporte deux oreilles de fixation 21 et 22 dont on verra la fonction ci-après.In the embodiment of FIGS. 7 to 9, the reaction member is a fixed member 20, integral with the supporting structure of the wheels, and therefore either of the wagon body or structure of the bogie. This member 20 supports two ears fixing 21 and 22 which will be seen below.

Un levier de manoeuvre 23 en forme d'équerre est monté pivotant en son point milieu sur l'oreille 21, autour d'un axe 24. L'extrémité d'une de ses branches, 25, forme une chape 26 et l'extrémité de son autre branche 27 possède un perçage 28.An angle-shaped operating lever 23 is pivotally mounted in its midpoint on the ear 21, around an axis 24. The end of one of its branches, 25, form a yoke 26 and the end of its other branch 27 has a drilling 28.

Les extrémités des barres 1 et 2 supportent une ferrure 29 dans laquelle est formé un orifice oblong 30. Un axe 31 traverse les trous 32 de la chape 26 et l'orifice 30.The ends of bars 1 and 2 support a fitting 29 in which an oblong orifice 30 is formed. An axis 31 passes through the holes 32 of the yoke 26 and orifice 30.

Deux leviers 33 et 33' ont une de leurs extrémités qui supporte un patin de freinage 34 et 34' respectivement coopérant avec des surfaces de freinage 35 et 35' formées sur les flancs de la roue 36. En variante, les surfaces 35 et 35' pourraient être formées sur un disque monté fixe sur l'axe de la roue 36.Two levers 33 and 33 'have one of their ends which supports a shoe brakes 34 and 34 'respectively cooperating with braking surfaces 35 and 35 'formed on the flanks of the wheel 36. As a variant, the surfaces 35 and 35' could be formed on a disc mounted fixed on the axis of the wheel 36.

Une bielle 37 relie l'extrémité de la branche 27 de l'équerre 23 à l'extrémité du levier 33 opposée au patin 34. A cet effet, cette bielle est articulée à une de ses extrémités sur un axe 38 traversant le trou 28 et à son autre extrémité sur un axe 39 monté sur l'extrémité précitée du levier 33, opposée au patin 34.A connecting rod 37 connects the end of the branch 27 of the bracket 23 to the end of the lever 33 opposite the shoe 34. For this purpose, this connecting rod is articulated at one of its ends on an axis 38 crossing the hole 28 and at its other end on an axis 39 mounted on the aforementioned end of the lever 33, opposite the shoe 34.

Le levier 33' a son extrémité opposée au patin 34' articulée sur l'oreille 22 de l'organe fixe 20. Les zones médianes des leviers 33 et 33' sont reliées par des biellettes de liaison 41 fixées à des axes 42 et 42' respectivement.The lever 33 'has its end opposite the shoe 34' articulated on the ear 22 of the fixed member 20. The middle zones of the levers 33 and 33 'are connected by connecting rods 41 fixed to axes 42 and 42 'respectively.

Lorsqu'une traction est exercée sur le triangle de frein, il amène l'équerre 23 à pivoter dans le sens de la flèche F2. Celle-ci amène à son tour le levier 33 à pivoter dans le sens de la flèche F3 autour de l'axe 42. Il en résulte d'une part un appui du patin 34 sur la surface de freinage 35 et, d'autre part, une traction exercée par la biellette 41 sur le levier 33' dans le sens de la flèche F4. Ainsi, les deux patins 34 et 34' sont appliqués sur leur surface de freinage respective 35 et 35'. Par conséquent, dans ce mode de réalisation, le bandage 43 de la roue 36 n'est pas sollicité.When traction is exerted on the brake triangle, it brings the bracket 23 to be pivoted in the direction of the arrow F2. This in turn brings the lever 33 to be pivoted in the direction of arrow F3 around the axis 42. This results, on the one hand, in a support of the pad 34 on the braking surface 35 and, on the other hand, a traction exerted by the link 41 on the lever 33 'in the direction of arrow F4. So the two skates 34 and 34 'are applied to their respective braking surfaces 35 and 35'. Through Consequently, in this embodiment, the tire 43 of the wheel 36 is not solicited.

Claims (2)

  1. Braking device for a rail vehicle comprising traction means (1, 2) arranged to apply a braking shoe to a braking surface integral with a vehicle wheel, a reaction member (20) integral with the structure of the vehicle, at least one lever (33, 33') arranged to cooperate with the said reaction member, means of connection between the said traction means and the said lever, the said braking shoe being carried by the said lever in order to be applied to the said braking surface by pivoting of the said lever under the action of the said traction means and the said reaction member and two complementary annular flat integral braking surfaces substantially parallel to the plane of the wheel and coaxial with the wheel, each associated with a shoe and a lever, the two shoes exerting their forces in opposite directions onto their respective braking surface, characterised by the fact that it comprises two shoe-carrying levers (33, 33') and a manoeuvring lever (23), one of the said shoe-carrying levers being mounted at its end opposite to the shoe, pivoting on the reaction member (20), the said manoeuvring lever also being mounted so as to pivot on the reaction member and being connected to the traction means, the other shoe-carrying lever having its end opposite to the shoe connected to the manoeuvring lever, and the said shoe-carrying levers being connected in their central area by a connecting rod (41).
  2. Braking device according to Claim 1, in which the said braking surfaces are formed on the wheel.
EP95942749A 1994-12-22 1995-12-15 Rail vehicle brake device Expired - Lifetime EP0799144B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9415476 1994-12-22
FR9415476A FR2729357A1 (en) 1994-12-22 1994-12-22 BRAKING DEVICE FOR RAIL VEHICLE
PCT/FR1995/001674 WO1996019372A1 (en) 1994-12-22 1995-12-15 Rail vehicle brake device

Publications (2)

Publication Number Publication Date
EP0799144A1 EP0799144A1 (en) 1997-10-08
EP0799144B1 true EP0799144B1 (en) 2001-04-25

Family

ID=9470111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95942749A Expired - Lifetime EP0799144B1 (en) 1994-12-22 1995-12-15 Rail vehicle brake device

Country Status (13)

Country Link
US (1) US6138800A (en)
EP (1) EP0799144B1 (en)
AT (1) ATE200765T1 (en)
CZ (1) CZ192997A3 (en)
DE (1) DE69520799T2 (en)
ES (1) ES2159327T3 (en)
FR (1) FR2729357A1 (en)
HU (1) HU218775B (en)
PL (1) PL179343B1 (en)
RO (1) RO117247B1 (en)
RU (1) RU2162805C2 (en)
SK (1) SK81697A3 (en)
WO (1) WO1996019372A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8899388B2 (en) 2010-04-20 2014-12-02 A. Stucki Company Brake beam assembly
CN114321224B (en) * 2021-12-20 2024-06-28 北京银河方圆科技有限公司 Braking system for medical instrument

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US595496A (en) * 1897-12-14 Railway-brake
US2359788A (en) * 1942-10-01 1944-10-10 Raymond C Pierce Brake arrangement
US2359806A (en) * 1943-01-30 1944-10-10 American Steel Foundries Duplex brake
US2581746A (en) * 1948-07-28 1952-01-08 American Steel Foundries Railway brake
GB1395883A (en) * 1971-07-16 1975-05-29 Girling Ltd Railway vehicle brake arrangements
DE2237741A1 (en) * 1972-08-01 1974-02-07 Knorr Bremse Gmbh BRAKE ACTUATOR ROD FOR RAIL VEHICLES
US4008789A (en) * 1975-06-17 1977-02-22 Westinghouse Air Brake Company Multi-brake shoe means for a multi-braking surface braked assembly
FR2374205A1 (en) * 1976-12-14 1978-07-13 Renault Moteurs Dev BRAKE AND BRAKE DEVICE, ESPECIALLY FOR 2-WHEEL VEHICLES

Also Published As

Publication number Publication date
EP0799144A1 (en) 1997-10-08
PL179343B1 (en) 2000-08-31
ES2159327T3 (en) 2001-10-01
FR2729357A1 (en) 1996-07-19
RO117247B1 (en) 2001-12-28
CZ192997A3 (en) 1997-11-12
WO1996019372A1 (en) 1996-06-27
ATE200765T1 (en) 2001-05-15
PL320885A1 (en) 1997-11-10
RU2162805C2 (en) 2001-02-10
SK81697A3 (en) 1997-11-05
DE69520799D1 (en) 2001-05-31
HUT76962A (en) 1998-01-28
HU218775B (en) 2000-12-28
US6138800A (en) 2000-10-31
DE69520799T2 (en) 2001-11-15

Similar Documents

Publication Publication Date Title
EP1200276B1 (en) Device for damping the yawing motions of a highway trailer drawn by a motor vehicle
EP0376802B1 (en) Suspension-correcting device, in particular for a motor cycle
EP0238768B1 (en) Suspension and bearing device connected to the front wheel of a motorcycle
EP0960045B1 (en) System for guiding a road vehicle axle along at least one rail on the ground
FR2463325A1 (en) DISC BRAKE
EP0291491B1 (en) Guiding and carrying device for a railway vehicle
FR2548309A1 (en) COUPLING APPARATUS, SUCH AS BRAKE OR THE LIKE, COMPRISING A WEAR RATTRAPOR
EP0799144B1 (en) Rail vehicle brake device
EP0966620B1 (en) Hybrid multiple disc brake
EP3395640B1 (en) Bogie for a railway vehicle comprising braking system comprising three brake disks arranged in between the axle bearings
WO1996041966A1 (en) Disc brake using a rotationally biased pad
EP0828645A1 (en) Braking device for a railway vehicle
EP0501856B1 (en) Braking system for a railway traction unit
FR2621277A1 (en) Axle with independent wheels
FR2716856A1 (en) Jaw brake caliper for disc brakes of rail vehicles.
FR2809069A1 (en) RAIL VEHICLE COMPRISING AN END VEHICLE EXTENDING BY A CAB
EP0520870B1 (en) Suspension device, especially a multi-link rear suspension device for a motor vehicle
FR2700591A1 (en) Improved disc brake for automobile wheel
FR2729358A1 (en) Railway vehicle brake
EP0018913A1 (en) Disc brake
FR2630681A1 (en) Axle for a vehicle with independent wheels in which the braking devices are remote from the wheels
EP0439977B1 (en) Wedge actuated disc brake
CA1328084C (en) Braking device for railroad car axle
FR2525167A1 (en) CONTROL DEVICE WITH FLEXIBLE CABLE TRANSMISSION FOR THE PARKING BRAKE OF MOTOR VEHICLES
EP1480863B1 (en) Device for fixing a connecting crossbar to a shoe brake for a rail bogie

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970723

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: SI PAYMENT 970723

17Q First examination report despatched

Effective date: 19971218

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: SI PAYMENT 19970723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010425

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010425

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010425

REF Corresponds to:

Ref document number: 200765

Country of ref document: AT

Date of ref document: 20010515

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69520799

Country of ref document: DE

Date of ref document: 20010531

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010725

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010727

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010720

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2159327

Country of ref document: ES

Kind code of ref document: T3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011214

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011215

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011215

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011218

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20011224

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011228

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011231

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: SOC. DES FORGES DE FRESNES

Effective date: 20011231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20021215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20021216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051215