Height adjustable coupling device with vertical cushioning

B - Operations – Transporting – 60 – D

Patent

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Details

B60D 1/46 (2006.01)

Patent

CA 2233264

An improved coupling device for connecting a towed vehicle and a towing vehicle, and includes a draw bar that is adapted to be affixed to the towing vehicle, a tube support structure connected to a distal end of the draw bar, and a tube that is movably connected to the tube support structure. Positioned within the tube are a slide bar, an upper cushion member, and a lower cushion member. The upper cushion member is seated within the tube adjacent to an upper axial end of the tube and the lower cushion member is seated within the tube adjacent to a lower axial end of the slide bar. The present invention also includes a connecting assembly that is affixed to a lower portion of the tube, where the connecting assembly consists of a connecting component configured and arranged to be removably attached to a corresponding connecting component on the towed vehicle. Further, the present coupling device preferably also includes a height adjustment assembly. The preferred embodiment of the height adjustment assembly consists of at least one set of aligned apertures on the tube support structure, located on opposite sides thereof; at least one set of aligned elongated slots on the tube, located on opposite sides thereof; and a plurality of apertures that extend through the slide bar. The tube support structure, the tube, and the slide bar are maintained at a selected height by a pin that is configured and arranged to be inserted through one set of aligned apertures on the tube support structure, one set of aligned elongated slots on the tube, and one of the plurality of apertures on the slide bar.

Cette invention concerne un dispositif d'attelage amélioré qui comprend une barre de traction adaptée pour être fixée au véhicule tracteur, un support de tube solidaire de l'extrémité distale de la barre de traction et un tube mobile monté dans le support de tube. € l'intérieur du tube se trouvent barre coulissante, un organe amortisseur supérieur et un organe amortisseur inférieur. L'organe amortisseur supérieur est logé dans la partie supérieure du tube et l'organe amortisseur inférieur est logé à l'extrémité opposée dudit tube. L'objet de l'invention comprend également un connecteur d'attelage fixé à la partie inférieure du tube, ledit connecteur étant composé d'un élément d'attelage façonné et configuré pour se fixer de façon amovible à un élément d'attelage correspondant du véhicule à remorquer. Par ailleurs, l'objet de l'invention comprend de préférence un mécanisme de réglage en hauteur dont la variante privilégiée se présente sous la forme d'une série d'ouvertures alignées dans deux faces opposées du support de tube, d'au moins un jeu de fentes alignées dans deux faces opposées du tube et d'une série d'ouvertures traversantes dans la barre coulissante. Le support de tube, le tube et la barre coulissante sont maintenus à la hauteur choisie au moyen d'une goupille adaptée pour pouvoir être insérée dans un jeu d'ouvertures alignées du support de tube, dans un jeu de fentes alignées du tube et dans une des ouvertures traversantes de la barre coulissante.

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