Patent ID: 9505281
Filing Date: 2016-11-29
CPC Classification: B60D

Claim Text:
1. A torsion hitch adapted to be affixed between a towing vehicle and a trailer, said towing vehicle having a vehicle-mounted receiver, said torsion hitch comprising: a draw bar having a draw bar axis and affixed to a torsion housing, said draw bar being an elongate member adapted to be received by said vehicle-mounted receiver and having a transverse hole adapted to receive a pin to affix said draw bar to said vehicle-mounted receiver, said torsion housing having an upper torsion tube with an upper central axis and a lower torsion tube with a lower central axis, said upper and lower central axes being substantially perpendicular to said draw bar axis, said upper and lower central axis being substantially parallel, said draw bar axis passing between said upper and lower central axes; an upper torsion arm affixed to a terminal end of an upper torsion bar being held within said upper torsion tube to resist rotation with respect to said upper torsion tube, said upper torsion arm having an upper pivot point spaced from said upper torsion bar, a lower torsion arm affixed to a terminal end of a lower torsion bar being held within said lower torsion tube to resist rotation with respect to said lower torsion tube, said lower torsion arm having a lower pivot point spaced from said lower torsion bar; a receiver assembly having an upper pivot point with a central axis and a lower pivot point with a central axis, said receiver assembly having at least two receivers affixed to said receiver assembly and adapted to receive an accessory draw bar, each receiver containing a transverse hole adapted to affix said accessory draw bar to said receiver; said pivot points of said upper and lower arms rotatably affixed to said pivot points of said receiver assembly; said upper and lower torsion arms rotatable between an unloaded position and a loaded position and being biased toward said unloaded position; said receivers of said receiver assembly remaining substantially parallel to said draw bar when said torsion arms move from said unloaded position to said loaded position; and a load indicator affixed to said upper torsion arm to measure an angle of said torsion arm with respect to said torsion housing.