Muff coupling for vehicle couplers

B - Operations – Transporting – 61 – G

Patent

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Details

B61G 7/00 (2006.01) B61G 9/20 (2006.01)

Patent

CA 2525500

The invention relates to a muff coupling intended for vehicle couplers of the type that comprises two components (2, 3) formed with ring-shaped flanges (13), as well as a muff (8) consisting of at least two arch parts (9) tightenable against each other, each of which separately has an inner flute (15) formed between two inwardly turned bulges (14), which flute is delimited by obliquely inclined side surfaces in order to, upon radial tightening of the arch parts against each other, be pressed against analogously obliquely inclined shoulder surfaces on said flanges (13) and thereby, by wedge action, transfer axial component forces to the same with the purpose of pressing the ends of the components (2, 3) in close contact against each other. According to the invention, the arch parts (9) are formed with double sets of bulges (14, 14') for co-operation with double flanges (13, 13') on the respective component (2, 3), whereby forces that are transferred between the components via the muff are distributed to a plurality of axially spaced-apart pairs of contact surfaces in an axial train of forces near the outside of the components.

L'invention concerne un manchon coulissant destiné à des coupleurs de véhicules du type qui comporte deux composants (2, 3) formés de brides annulaires (13), ainsi qu'un manchon (8) constitué d'au moins deux parties en arc (9) serrables l'une contre l'autre, chacune ayant une cannelure interne (15) formée entre deux bosses (14) tournées vers l'intérieur, ladite cannelure étant délimitée par des surfaces latérales inclinées de manière oblique afin que, lorsqu'on serre radialement les parties en arc l'une contre l'autre, elles soient pressées contre des surfaces d'épaulement inclinée obliquement de manière analogue sur lesdites brides (13) que et, par conséquent, par effet de coin, les forces axiales du composant soient transférées vers elles, l'objet étant de presser les extrémités des composants (2, 3) étroitement les unes contre les autres. Selon l'invention, les partie en arc (9) sont formées avec des doubles ensembles de bosses (14, 14') pour coopérer avec les doubles brides (13, 13') sur le composant correspondant (2, 3), ainsi, les forces qui sont transférées entre les composants par le biais du manchon sont distribuées sur une pluralité de paires de surfaces de contact à distance les unes des autres dans le sens de l'axe dans un train axial de forces proche de l'extérieur des composants.

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