Conversion hitch

Claim 2

In combination: a tractor having a two-point hitch including a pair of selectively vertically movable lift arms; a grain drill having a frame including forward and rearward ends, said frame being supported by ground engaging wheels at the rearward end thereof, a dolly wheel hitch including a rear hitch portion which is rigidly secured to said frame and which extends forwardly therefrom, an intermediate hitch portion which is rigidly secured to the forward end of said rear hitch portion which extends downwardly and forwardly therefrom; said intermediate hitch portion including upper and lower ends; a conversion hitch for attachment to said grain drill to enable said grain drill to be connected to said two-point hitch of said tractor; said conversion hitch comprising a connector member having a rearward end removably connected between to said intermediate hitch portion between the upper and lower ends thereof; said connector member including a forwardly extending first support member having a forward end; a horizontally disposed, elongated second support member having its longitudinal axis disposed transversely to the normal direction of travel of the grain drill, said second support member being operatively pivotally secured, about vertical and horizontal axes, to said first support member; means selectively vertically connecting said connector member said intermediate hitch portion; said second support member having first and second ends having means thereon for removable connection to said lift arms of said two-point hitch whereby said lift arms may be selectively vertically moved to vertically move said intermediate hitch portion of said grain drill.

Claim 3

The combination of claim 1 wherein a joint means pivotally interconnects, about horizontal and vertical axes, said first support member and said second support member.

Claim 4

The combination of claim 1 wherein said connector member comprises a clamp which is removably clamped onto said intermediate hitch portion.

Claim 5

In combination with a tractor having a two-point hitch including a pair of selectively vertically movable lift arms; a grain drill having a frame including forward and rearward ends, said frame being supported by ground engaging wheels at the rearward end thereof, a dolly wheel hitch including a rear hitch portion which is rigidly secured to said frame and which extends forwardly therefrom, an intermediate hitch portion which is rigidly secured to the forward end of said rear hitch portion which extends downwardly and forwardly therefrom, said intermediate hitch portion including upper and rearward ends: a conversion hitch for attachment to said grain drill to enable said grain drill to be connected to said two-point hitch of said tractor; said conversion hitch comprising a connector member having a rearward end for removable connection to said intermediate hitch portion between the upper and lower ends thereof; said connector member including a forwardly extending first support member having a forward end; a horizontally disposed, elongated second support member having its longitudinal axis disposed transversely to the normal direction of travel of the grain drill, said second support member being operatively pivotally secured, about vertical and horizontal axes, to said first support member; means selectively vertically connecting said connector member to said intermediate hitch portion; said second support member having first and second ends having means thereon for removable connection to said lift arms of said two-point hitch whereby said lift arms may be selectively vertically moved to vertically move said intermediate hitch portion of said grain drill.

Claim 6

In combination with a tractor having a two-point hitch including a pair of selectively vertically movable lift arms; a grain drill having a frame including forward and rearward ends, said frame being supported by ground engaging wheels at the rearward end thereof, a dolly wheel hitch including a rear hitch portion which is rigidly secured to said frame and which extends forwardly therefrom, an intermediate hitch portion which is rigidly secured to the forward end of said rear hitch portion which extends downwardly and forwardly therefrom, said intermediate hitch portion including upper and rearward ends: a conversion hitch for attachment to said grain drill to enable said grain drill to be connected to said two-point hitch of said tractor; said conversion hitch comprising a connector member having a rearward end for removable connection to said intermediate hitch portion between the upper and lower ends thereof; said connector member including a forwardly extending first support member having a forward end; a horizontally disposed, elongated second support member having its longitudinal axis disposed transversely to the normal direction of travel of the grain drill, said second support member being operatively pivotally secured, about vertical and horizontal axes, to said first support member; means selectively vertically connecting said connector member to said intermediate hitch portion; said second support member having first and second ends having means thereon for removable connection to said lift arms of said two-point hitch whereby said lift arms may be selectively vertically moved to vertically move said intermediate hitch portion of said grain drill.