Lely Patent N.v.

Maasland N.v.

Maasland N.v. a Dutch Limited Liability Co.

Norbert Van Hemert

Alfonsus Jacobus Van Den Engel

Olaf Van Der Lely

Maarten Koorn

A drawn agricultural machine comprising a carrier frame for carrying processing members, the carrier frame supportable on the ground, at least during transport, by means of a wheel set comprising at least a wheel, a coupling frame for coupling the agricultural machineto the three-point suspension of a tractor, the coupling frame comprising two lower coupling points and an upper coupling point and the coupling frame being rotatable about a vertical axis of rotation relative to the carrier frame. The machine also comprises a drawing element for exerting a force on the coupling frame, wherein the coupling frame, the carrier frame and the drawing element are interconnected in such a manner that a downward force component is exerted on the lower coupling points when the drawing element exerts a force on the coupling frame.

Drawn agricultural machine

An implement for displacing crop lying on the ground comprising at least one rake member which is driven so as to be rotatable about an upwardly orientated axis and which is provided with a plurality of outwardly extending arms, each of which pivots in upward direction about a pivot axis. Each arm has a pair of outwardly extending tines connected pivotably thereto. The pivotal connections of the arms to the rake wheels and the tines to the arms of each assemble of arms and tines is such that the center of gravity, when the implement is operating, is so disposed that the resultant of the gravitational and centrifugal forces urge the arms and the tines towards the underlying ground. The rake wheels can be folded upwardly about their pivot axes into a transport position wherein the arms are received in a locking device which comprises a resilient member having a recess for receiving each arm. The resilient member may comprise a spring or be composed of an elastic material such as plastic or rubber. The pair of tines are pivoted downwardly while in the transport position.

Rotary hayraking implement for uneven terrains

A racking, pickup and windrowing implement for moving crop lying on the ground laterally which includes a first machine comprising rake wheels that rotate about substantially vertical axes and move the crop inwardly where it is picked up by a pick-up implement and conveyed to a displacing device which displaces the crop laterally and discharges it back on the ground in a windrow which is proximate the boundary of the strip being worked or, in one embodiment, the windrow is formed by discharging it laterally from the displacing device at a further distance away from the boundary of the strip being worked which is substantially equal to the width of the strip being worked. The displacing device comprises two endless members in series. Such endless members and the rake wheels are foldable upwardly so that the entire machine combination has a width suitable for transport. The pick-up implement can also be raised above the ground by a hydraulic piston and cylinder associated with the coupling device which connects the first machine to the pick-up implement.

Growing community of inventors

Rotterdam, Netherlands

Norbert Van Hemert