Tubular hitch member ball connection for an implement

Details Tubular hitch member ball connection for an implement Tubular hitch member ball connection for an implement

A - Human Necessities

01

B

A01B 59/04 (2006.01) A01B 59/00 (2006.01) B21D 41/04 (2006.01)

Patent

CA 2100644

Hitch ball assemblies for implement hitches are welded directly into holes formed in sidewalls of tubing ends which have been flattened to provide direct load transfer from the tubing to the implement frame. Several different flattened end cross-sectional configurations provide strong ball joint areas with a pleasing appearance. In one embodiment, an additional plate is supported between the sidewalls prior to flattening, and the hole is formed in the two sidewalls and the plate in the same hole-forming operation. The reduced number of hitch parts and welding steps decreases cost and dimensional variations.

Systèmes de boules d'attache conçues pour des attelages de matériel remorqué. Ces boules sont directement soudées dans les cavités formées dans les parois des extrémités de tubes flexibles qui ont été aplaties pour rendre possible le transfert direct de leur charge sur le châssis du matériel remorqué. Plusieurs différents types d'extrémités aplaties, de diverses formes au niveau de leur coupe transversale, permettent d'obtenir de solides sections de joint à rotule d'aspect agréable. Dans un cas particulier, une plaque supplémentaire est installée entre les parois avant la phase d'aplatissement et l'on crée la cavité dans les deux parois et la plaque en une seule opération. La quantité plus faible de pièces d'attelage et d'étapes de moulage caractérisant cette méthode permet d'obtenir des coûts de production moins élevés et de limiter les variations dans les dimensions.

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