Hitch apparatus with reduced wear
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United States of America Patent
Stats
-
Sep 16, 2014
Grant Date -
Jul 11, 2013
app pub date -
Sep 14, 2012
filing date -
Jan 5, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An implement hitch tongue apparatus has a nodular cast iron tongue member defining a vertical drawpin hole. A bottom recess is defined in a bottom surface of the tongue member forward of the drawpin hole, and a pin hole recess is defined in a front portion of the drawpin hole. The recesses are filled with hard surfacing welding electrode material by welding with a hard surfacing welding electrode. A grease conduit can provide grease to the bottom surface of the tongue member. A solid one-piece ball insert member can be removably installed in the drawpin hole instead of hard surfacing. The ball insert can provide different drawpin hole sizes, and can extend down below the tongue to support the tongue weight on the ball insert with the ball insert rotating with respect to the tongue during turns.
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