| US 7,559,161 B2 | ||
| Soil working method and apparatus | ||
| Erwin Stoetzer, Aichach (Germany) | ||
| Assigned to Bauer Maschinen GmbH, Schrobenhausen (Germany) | ||
| Filed on Jul. 27, 2005, as Appl. No. 11/189,722. | ||
| Claims priority of application No. 04019187 (EP), filed on Aug. 12, 2004. | ||
| Prior Publication US 2006/0032644 A1, Feb. 16, 2006 | ||
| Int. Cl. E20F 3/24 (2006.01) | ||
| U.S. Cl. 37—189 [37/91; 37/401; 175/91] | 18 Claims |
| 1. Apparatus for working the soil, comprising:
a supporting device,
a soil working device for removing soil from a primary trench,
at least one supporting cable reeved on the soil working device and connected to the supporting device for introducing the
soil working device into the primary trench,
at least one return pulley located on the soil working device, wherein the soil working device is hung in the at least one
supporting cable via the at least one return pulley,
holding means for suspending the soil working device, for introducing part of the tensile force of the soil working device
into the primary trench at least during raising of the soil working device, and for subdividing with the supporting device
the tensile force of the soil working device, while resting on a ground surface outside the primary trench, wherein the at
least one supporting cable is terminally connected to the holding means, and
supporting means for carrying the holding means and raising the holding means together therewith when the soil working device
is raised from the ground and for leaving the holding means resting on the ground surface outside the primary trench when
the soil working device is introduced into the primary trench.
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