Patent ID: 8376062

Claim:
A soil cultivation device movable in a direction relative to the ground for subsoil loosening, comprising: a device chassis or device frame, a row of supporting arms each of which is articulated at a first portion thereof at the device chassis or device frame for pivoting up and down about a first pivot axis, a driving means for driving the up and down movements of the supporting arms, and perforating tool articulating means each for articulating a perforating tool, which is connected fixedly to the perforating tool articulating means, at a second portion for each supporting arm, the perforating tool articulating means being articulated at the supporting arm to pivot about a second pivot axis relative to the supporting arm such that a perforating tool secured to the perforating tool articulating means can perforate the ground when the supporting arm, to which the perforating tool is connected, is lowered and that the perforating tool articulating means is pivoted in a pivoting movement relative to the supporting arm at least during perforating and further device travel of the soil cultivation device in the forwards direction, wherein at least one gear mechanism is provided for communicating at least the pivoting movement of the perforating tool articulating means relative to the supporting arm, wherein the pivoting movement occurs while the perforating tool is penetrating the ground and the soil cultivation device is traveling further in the forwards direction, to at least one means not slaved in the up and down movement of the supporting arm.