초록 ▼

A modular hitch mount connection for attaching a tubular carrier structure to a load arm that is inserted in the receiving tube of a receiving type hitch. A tubular seat is provided that has an open end for slidably receiving the support tube in an open end of the seat. Correct positioning of the su

A modular hitch mount connection for attaching a tubular carrier structure to a load arm that is inserted in the receiving tube of a receiving type hitch. A tubular seat is provided that has an open end for slidably receiving the support tube in an open end of the seat. Correct positioning of the support tube in the tubular seat produces alignment of holes in walls of the tubular seat with orifices in sidewalls of the support tube. A tensioning bolt inserted through a hole in the seat wall and a corresponding orifice in the sidewall of the support tube screwably engages a threaded nut located inside the support tube to secure the support tube to the tubular seat and in the process reduce play and wobble between them. Further play and wobble may be eliminated from the modular hitch mount connection by further inserting a connecting bolt through a hole in another wall of the tubular seat and a corresponding orifice in the second sidewall. Similarly, a receiving nut is provided on the interior surface of the support tube, but a central axis of the second nut is oriented at 90.degree. to that of the first nut because it is on an adjacent wall of the support tube. This cross-orientation of the bolts cooperates to secure the support tube to the tubular seat. The tensioning bolt and the connecting bolt together restrict movement of the support tube by causing solid contact between the walls of the tubular seat and the sidewalls of the support tube.

대표청구항 ▼

1. A modular hitch mount connection for attaching a tubular carrier structure to a load arm inserted in the receiving tube of a receiving type hitch, said modular hitch mount connection comprising:a tubular seat having an open end and a first wall joined at an angle of 90.degree. to a second wall, s

1. A modular hitch mount connection for attaching a tubular carrier structure to a load arm inserted in the receiving tube of a receiving type hitch, said modular hitch mount connection comprising:a tubular seat having an open end and a first wall joined at an angle of 90.degree. to a second wall, said first wall and said second wall each having at least one hole formed therein; a support tube having a proximal end and a distal end, said proximal end sized to slidably engage said seat through said open end, said support tube further having an inner surface and first sidewall disposed at 90.degree. to a second sidewall, said first sidewall and said second sidewall each having at least one orifice formed therein, said first wall of said tubular seat adjacent said first sidewall of said support tube with said at least one hole of said first wall in axial alignment with said at least one orifice of said first sidewall, said second wall of said tubular seat adjacent said second sidewall of said support tube with said at least one hole of said second wall in axial alignment with said at least one orifice of said second sidewall, said inner surface of said support tube, at said proximal end, having a threaded nut secured to said inner surface of said support tube, in axial alignment with said at least one orifice of said first sidewall and further having a receiving nut rigidly mounted on said inner surface of said support tube opposite and axially aligned with said at least one orifice formed in said second sidewall of said support tube; a tensioning bolt inserted through said at least one hole of said first wall and said at least one orifice of said first sidewall to engage said threaded nut to secure said support tube to said tubular seat; and a connecting bolt inserted through said at least one hole of said second wall and said at least one orifice of said second sidewall to engage said receiving nut to secure said support tube to said tubular seat, said tensioning bolt and said connecting bolt restricting movement of said support tube by causing solid contact between said first wall and said first sidewall and said second wall and said second sidewall.