Patent ID: 6325155
Filing Date: 2001-12-04
Classification: A01B

Abstract:
In an agricultural implement having support wheels and adapted to be pulled by a tractor, said implement comprising:a central frame with a front end and opposing sides and having a central hitch frame affixed at said front end to said central frame adjacent said front end thereof and extending away therefrom in a first direction and terminating at the other end with a hitch for attachment to said tractor;a pair of substantially identical, but reversed, inner wing frames with front ends, one connected to each side of said central frame at the front ends thereof;a pair of substantially identical, but reversed, outer wing frames with front ends, one connected to each side of respective inner wing frames at the front ends thereof;the connections between said inner wing frames and said central frame permitting said inner wing frames to be selectively moved from an operating position to a transport position by rotating about said front ends thereof 90.degree. in said first direction and 90.degree. in a second direction transverse to said first direction toward the respective side of said central frame;said outer wing frames rotating with the respective inner wing frames when moving from said operating position to said transport position, the improvement on each side of said central frame comprising:a draft support wire connected at one end to said central hitch frame and connected at the other end to said outer wing frame at the front end thereof;a support arm pivotally attached at one end to said inner wing frame at the front end thereof and attached to said support wire along the length thereof at the other end, the length of said support arm such that in said operating position said support wire does not form a straight line between the points of connection with said central hitch frame and said outer wing frame;said support arm and wire pivotable between said operating position where said support wire is taut and transfers draft forces between said outer wing frame and said central hitch frame, and said transport position where said support wire is not taut and is held in position away from components operable in the transport position.