Brake device for a rail vehicle

F - Mech Eng,Light,Heat,Weapons – 16 – D

Patent

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Details

F16D 65/14 (2006.01) F16D 65/38 (2006.01) H01F 7/16 (2006.01)

Patent

CA 2656424

The invention relates to a brake device (1) for rail vehicles, comprising an electromagnetic spring pressure brake, the brake force being applied by an elastic force to the part to be braked and a magnetic arrangement being provided for neutralizing the brake force. Said magnetic arrangement counteracts the elastic force and consists of a coil arrangement (6) and an armature plate (7) that are mobile in relation to each other, the mobile part being connected to the brake element (8) that impinges the part to be braked. The brake device for a rail vehicle according to the invention allows a high brake force and short reaction times and is very compact. For this purpose, the mobile part is connected to an axially displaceable plunger (2) which on one end can be impinged upon with the elastic force and which is connected on the other end to the brake element (8).

L'invention concerne un système de freinage (1) pour véhicules sur rails, comprenant un frein à pression par ressort électromagnétique. La force de freinage est appliquée par la force exercée par ressort sur la partie à freiner et il est prévu un système magnétique pour supprimer la force de freinage, qui agit à l'encontre de la force exercée par ressort et consiste en un système de bobine (6) muni d'une plaque d'induit (7), qui peuvent se déplacer l'un par rapport à l'autre. La partie mobile est reliée à l'élément de freinage (8) agissant sur la partie à freiner. Le système de freinage selon l'invention, prévu pour un véhicule sur rails, permet d'obtenir une force de freinage importante et un temps de réaction court et se caractérise par des dimensions réduites. A cet effet, la partie mobile est reliée à un étançon (2) à déplacement axial, qui peut d'une part être sollicité par la force exercée par ressort et est d'autre part relié à l'élément de freinage (8).

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