DE370890C - Device for raising and lowering the swingable or articulated suspended earthworking tools in agricultural machines, such as motor plows o. - Google Patents

Description

It is known that the earthworking implements in agricultural machinery, like motorized plows or the like, to be suspended on the chassis and when moving forward the plow bodies into the ground by manually swiveling in or out lower or lift from it. It is also known, pendulum suspended earthworking tools when driving forward in

ίο lower the floor and at. Reverse by running onto a thorn ο. like. to lift. For all of these purposes are '' special operations are necessary which place special demands on the driver's attention place.

The present invention now forms an arrangement which does the lifting and lowering the earthworking tools designed completely automatically when changing the direction of travel.

This is achieved in that the steering wheel or another provided for this purpose Impeller, like the earthworking tools, arranged to swing or slide on the chassis and with the Earthworking tools is connected in such a way that the steering or wheel within its end positions when the machine is moving forward in the one sense and in the Reverse travel of the machine in the other sense automatically swings out or forwards or backwards. slides back - and thereby the earthworking tools automatically lowers and raises.

In order to support this effect of the steering or running wheel, the same is useful provided with grippers and the weight of the plowshares or the whole The plow frame is suitably balanced by a counterweight or spring force.

One such example is shown in the drawing

trained plow when using an impeller in Fig. ι in the side view Reverse travel and shown in Fig. 2 in the side view with forward travel while Fig. 3 and 4 in side view and front view, partly in section, the application show a steering wheel.

The plow frame 2 is through on the chassis 1 of the motor plow ('Fig. Ι and 2) Joints 3 and 4 can be raised or lowered in the manner of a parallelogram or in some other suitable manner and the impeller 5 is connected to the joint 4. If the plow moves backwards, it stays naturally the impeller 5 and the plow frame 2 in the position shown, while when driving forward due to the frictional resistance, which is increased by the gripper 6 can be, the impeller 5 stops until the joint 4 in its other end position has reached and both the impeller 5 and the plow frame 2 automatically has come to the position shown in Fig. 2, with the plow frame has lowered.

When changing the direction of travel from forward I backwards caused the frictional resistance; the impeller 5 was initially at a standstill the same so that the chassis 1 extends over the suspension point of the running wheel pushes away, whereby the joint 4 in turn j reaches its other end position and j the plow frame 2 lifts. So that the resistance of the wheel 5 is sufficient to the Pflugratu The weight of the ploughshares is expediently allowed to swing forward in a manner known per se, balanced by counterweights or springs (not shown).

It does not matter in which way the impeller is connected to the joint 4. It is only necessary that both are swingably or slidably in such a manner on the chassis 1 and with each other in a rigid or elastic connection that the Erdbearbeitungswerkzeuge is achieved by the \ ^r erschiebung the axis of the impeller on the chassis, a lifting or lowering. Of course, devices known per se must be made in order to be able to keep the end positions of all oscillations variable according to the selected groove depth.

In place of an impeller can also ivie from Fig. 3 and 4 can be seen, a steering wheel 5 "are cardanically on the chassis \ ^a arranged I. The Ausschwingung calls" of the steering wheel in its end positions out the j same effect as the impeller!

while the steerability of the wheel is secured by the cardanic suspension at the same time is.

On the chassis \ ^a an arm 7 is rotatably mounted, one end of which is pierced at right angles to the longitudinal axis and which. Steering fork 8 of the wheel 5 takes up ^tt. The free end of the arm 7 is ^connected to the plow frame 2 ^a by means of a joint 4 ffi, so that the plowshares are raised or lowered depending on the swing of the wheel 5 ° forwards (when driving backwards) or to the rear (when driving forwards). The end positions of the oscillations are not included here for the sake of clarity.

Due to the storage of the fork 8 of the steering wheel 5 * at right angles to the arm 7 the steerability of the steering wheel is guaranteed.

In order to ensure that the steering wheel is also steered in all positions with the cardanic suspension of the steering wheel ζ ^α , the upper end of the fork 8 is expediently provided with a comb wheel or segment 9 which engages with a second comb wheel or segment 10 which is located on the arm 7 is rotatably mounted. A rotation of the segment 10 in one direction or the other thus also causes a rotation of the steering wheel 5 °, quite independently of the respective oscillation of the same.

The rotation of the comb wheel or segment 10 takes place by means of a self-displaceable and handlebar secured against rotation by wedge and Xtit connection 11 12, the ends of which are connected to the segment 10 by means of cardanic couplings 13 and 14 and the steering wheel * 15 are connected.

Of course, the rotation can be transmitted from the steering wheel to the steering wheel can also be done in any other way.

Claims (1)

Patent claim: Device for lifting and lowering the swingable or articulated Earthworking tools in agricultural machines, such as motorized plows o. The like. In which the axis of a Plowwheel swingable or slidable attached to the chassis and indirectly or directly connected to the earthworking tools, thereby marked that the running wheel or a steering wheel when moving the plow forward swings out automatically into one of its end positions and when reversing into the other. For this purpose ι sheet of drawings.