EP0799144B1 - Bremsvorrichtung für schienenfahrzeug - Google Patents

Bremsvorrichtung für schienenfahrzeug Download PDF

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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
English (en)
French (fr)
Other versions
EP0799144A1 (de
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/de
Application granted granted Critical
Publication of EP0799144B1 publication Critical patent/EP0799144B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)

Claims (2)

  1. Bremsvorrichtung für Eisenbahnfahrzeug mit Traktionsmitteln (1,2), die vorgesehen sind, um einen Bremsschuh auf eine zu einem Rad des Fahrzeugs gehörende Bremsfläche zu drücken, einem zur Struktur des Fahrzeugs gehörenden Reaktionsorgan (20), mindestens einem Hebel (33, 33'), der mit dem besagten Reaktionsorgan zusammenwirken soll, Verbindungsmitteln zwischen den besagten Traktionsmitteln und dem besagten Hebel, wobei der besagte Bremsschuh von dem besagten Hebel getragen wird, um durch Drehen des besagten Hebels unter der Wirkung der besagten Traktionsmittel und des besagten Reaktionsorgans auf die besagte Bremsfläche gedrückt zu werden, und mit zwei zusätzlichen, aus einem Stück bestehenden, runden und ebenen, zur Radebene etwa parallel und koaxial zum Rad verlaufenden Bremsflächen, die jeweils einem Schuh und einem Hebel zugeordnet sind, wobei die beiden Schuhe ihre Kräfte auf ihre jeweilige Bremsfläche in entgegengesetzten Richtungen ausüben, dadurch gekennzeichnet, dass sie zwei Schuhträgerhebel (33, 33') und einen Bedienungshebel (23) umfasst, wobei einer der besagten Schuhträgerhebel an seinem dem Schuh gegenüberliegenden Ende um das Reaktionsorgan (20) herum drehend montiert ist, wobei der besagte Bedienungshebel ebenfalls um das Reaktionsorgan herum drehend montiert und mit den Traktionsmitteln verbunden ist, während das dem Schuh gegenüberliegende Ende des anderen Schuhträgerhebels mit dem Bedienungshebel verbunden ist, und wobei die besagten Schuhträgerhebel in ihrem mittleren Bereich durch eine Verbindungsstange (41) verbunden sind.
  2. Bremsvorrichtung nach Anspruch 1, bei der die besagten Bremsflächen am Rad angeformt sind.
EP95942749A 1994-12-22 1995-12-15 Bremsvorrichtung für schienenfahrzeug Expired - Lifetime EP0799144B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9415476 1994-12-22
FR9415476A FR2729357A1 (fr) 1994-12-22 1994-12-22 Dispositif de freinage pour vehicule ferroviaire
PCT/FR1995/001674 WO1996019372A1 (fr) 1994-12-22 1995-12-15 Dispositif de freinage pour vehicule ferroviaire

Publications (2)

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

Family

ID=9470111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95942749A Expired - Lifetime EP0799144B1 (de) 1994-12-22 1995-12-15 Bremsvorrichtung für schienenfahrzeug

Country Status (13)

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

Families Citing this family (1)

* 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

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 (de) * 1972-08-01 1974-02-07 Knorr Bremse Gmbh Bremsbetaetigungsgestaenge fuer schienenfahrzeuge
US4008789A (en) * 1975-06-17 1977-02-22 Westinghouse Air Brake Company Multi-brake shoe means for a multi-braking surface braked assembly
FR2374205A1 (fr) * 1976-12-14 1978-07-13 Renault Moteurs Dev Dispositif de freinage et frein, notamment pour vehicules a 2 roues

Also Published As

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

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