Cultivating attachment for crop harvester support vehicle

A cultivator for attachment to a motorized crop harvester support vehicle including a pair of longitudinal support frame members, spaced transverse frame members, and at least one steerable wheel comprising:

• a pair of tool frame members;
• soil tilling tools adjustably mounted relative to said tool frame members;
• a first transverse shaft rotatably mounted on the support frame members of the crop harvester support vehicle;
• actuating means operatively connected to said first shaft and said support tool frames for selectively imparting rotation to said shaft;
• a substantially parallel linkage operatively, pivotally connected between said tool frame member and one of said transverse support frame members for guiding said tool frame members and soil tilling tools between a raised position out of engagement with a ground surface and a lowered position into engagement with the ground surface;
• connecting means operatively connected to said shaft and said tool frame members for translating rotational motion of said first frames into rotatable, vertical motion of said tool frame members and said soil tilling tools about said linkage pivotally mounted to said support frame to selectively raise and lower said tool frame members and said soil tilling tools;
• a ground engaging wheel adjustable mounted relative to each of said tool frame members for regulating the depth of penetration of said soil tilling tools;
• a second shaft forwardly mounted on said support frame;
• and
• a spring toothed scratcher behind said at least one steerable wheel connected to an arm secured to said second shaft, a connecting linkage being operatively connected between said first shaft and said second shaft for imparting rotational motion to said second shaft upon rotation of said first shaft for selectively raising and lowering said spring toothed scratcher in unison with said tool frame members and soil tilling tools.