초록 ▼

A cultivating implement has an elongated frame portion that mounts a row of rotors that rotate about upwardly extending axes. At the lateral sides of the frame portion, screening plates are positioned to arrest the lateral displacement of soil being worked. Each screen is substantially vertical with

A cultivating implement has an elongated frame portion that mounts a row of rotors that rotate about upwardly extending axes. At the lateral sides of the frame portion, screening plates are positioned to arrest the lateral displacement of soil being worked. Each screen is substantially vertical with its front part being linked to an overlying frame structure and rear roller that supports the frame portion. Parallelogram links arranged one above the other interconnect each plate with a support part of the structure. The links extend forwardly from the plate from pivot connections to further pivot connections. The connections define horizontal transverse axes that allow the plate to move up and down as it rides along the ground. The front connections are resilient members that allow some lateral deflection of the plate. The plate has an upper, rear bent over portion that allows entry of a supporting roller arm to a pivot connection to the supporting frame structure. A lower bent portion of the plate forms a guide for the soil.

대표청구항 ▼

A soil cultivating implement comprising a frame structure and a row of soil working members mounted on an elongated portion of said structure, said portion extending transverse to the direction of implement travel, an upwardly extending screening plate positioned adjacent at least one lateral side o

A soil cultivating implement comprising a frame structure and a row of soil working members mounted on an elongated portion of said structure, said portion extending transverse to the direction of implement travel, an upwardly extending screening plate positioned adjacent at least one lateral side of said frame portion and said plate being pivoted to said structure by links, said links being spaced apart and positioned one above the other, said links extending forwardly from pivot connections to said plate to a support on said structure, a plane containing the pivotal connections of said links to said plate being inclined upwardly and rearwardly with respect to the normal direction of implement travel, said plate being normally positioned to ride along the ground during travel and being freely displaceable upwardly and downwardly about said pivot connections responsive to ground undulations without tilting, said pivot connections defining substantially horizontal axes that extend transverse to the direction of travel, an elongated roller being positioned to the rear of said soil working members, the lateral ends of said roller being pivoted to the supporting structure by corresponding arms, said plate having an obliquely bent-over upper portion that is substantially vertically in register with a respective arm to avoid fouling the arm.