Draft gear assembly, comprising a housing, a compressible...

B - Operations – Transporting – 61 – G

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B61G 9/06 (2006.01) B61G 9/10 (2006.01) B61G 9/22 (2006.01)

Patent

CA 2684372

A draft gear assembly (84) for cushioning both buff and draft dynamic impact forces being applied to a center sill member of a railway vehicle includes a housing member (300) closed at one end and open at an opposed end, the housing member having a rear portion (312) adjacent the closed end and a front portion adjacent the open end. At least one compressible elastomeric spring (102g) is positioned within the rear portion and has a rear end thereof abutting at least a portion of an inner surface of the closed end. A friction clutch mechanism (350) is also provided in abutting engagement with each of the front end of the compressible elastomeric spring and the coupler shank. The housing member may be provided with a pair of ledge portions (336) disposed intermediate its ends and attachment members (342) disposed on the open end for attaching the housing member directly to the coupler shank (12).

Ensemble d'appareil de traction (84) servant à atténuer, tant qu'en amortissement et en traction, des forces d'impact dynamiques appliquées sur un élément d'appui central d'un véhicule de chemin de fer. Cet ensemble d'appareil de traction comprend un élément de logement (300) dont une extrémité est fermée et l'autre est ouverte, l'élément de logement comportant une partie arrière (312) adjacente à l'extrémité fermée et une partie avant adjacente à l'extrémité ouverte. Au moins un ressort en élastomère compressible (102g) est placé dans la partie arrière et a une extrémité arrière correspondante butant contre au moins une partie d'une surface interne de l'extrémité fermée. En outre, un mécanisme d'embrayage à friction (350) bute contre chaque extrémité avant du ressort en élastomère compressible et de la broche de couplage. L'élément de logement peut comprendre une paire de parties de rebord (336) disposées entre ses extrémités et des éléments de fixation (342) disposés sur l'extrémité ouverte afin de rattacher l'élément de logement directement à la broche de couplage (12).

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