DE19922655C2 - Method and device for the automatic mechanical connection of Hopfensteig wire to a carrier wire and piercing the Hopfensteig wire into the ground - Google Patents

Description

The invention relates to a method for the automatic mechanical connection of Hopfensteig wire to a carrier wire and piercing the Hopfensteig wire into the ground with the following steps:

• - The tying and piercing takes place during the continuous Drive through the hop garden with a tractor, on which the Device is attached,
• - Automatic controlled by a carrier wire detection system Position a wire fastener near the Carrier wire through drives between vertical frame and base frame,
• - Feeding the Hopfensteig wire from a Hopfensteig wire storage by means of a hop wire feeding device in the area of Wire fastening device,
• - Attach the Hopfensteig wire to the carrier wire using the Wire fastening device,
• - Anchoring the Hopfensteig wire in the ground and
• - Cutting off the Hopfensteig wire.

The invention also relates to a device for the automatic mechanical connection of Hopfensteig wire to a carrier wire and piercing the Hopfensteig wire into the ground to carry out the method described above,

• - with a base frame for attachment to a tractor,
• - With a vertical frame movably connected to the base frame
• - With a fastening device between the base and Vertical frame,
• - with a vertical frame designed as a framework,
• - With fastening elements for fastening the underframe to one Tractor,
• - with a hop wire feed device on the vertical frame,
• - With a wire fastening device at the top of the Vertical frame,
• With a carrier wire detection device,
• - with a piercing device on the vertical frame,
• - with a cutting device,
• - with a hop wire rope storage and
• - with a control.

An apparatus and method for automatically attaching riser wire a carrier wire is known from DE 196 31 646 A1.

This device works satisfactorily, but is designed as iron wire Process riser wire. When using materials other than Hopfenwedd wire is the device in its construction and in its procedure not optimally designed.

DE 27 09 556 A1 only describes a device for piercing Lines for guiding hops into the ground and twisting the lines. The The device is carried by hand and the lines are threaded by hand. DE 27 09 557 A1 describes a possibility of using a leash with one hand to fix the guided device to a carrier wire.

Both the possibilities of DE 27 09 556 A1 and that of DE 27 09 557 A1 strain the worker in unusual Wise.

According to DE-AS 21 32 901 a device for automatic hanging of Guide wires for plants, especially for hops.

The object of the invention is therefore to provide a method and a device for the automatic automatic connection of Hopfensteig wire to a carrier wire and piercing the Hopfensteig wire into the ground,

• - that make it possible only with one operator, namely the tractor driver work,
• - which allow quick and safe attachment of the Hopfensteig wires,
• - which are simple and inexpensive to set up or implement,
• - which can also be used for robust work in practice and
• - that make it possible to use materials other than iron or steel Hopfen wire to process.

The solution to the problem with regard to the method is characterized in that

• - that a plastic wire is used as the Hopfensteig wire,
• - That the wire fastening device below the carrier wire located,
• - That the free end of the plastic wire Wire fastening device is supplied,
• - That the wire fastening device the plastic wire on the Carrier wire attached,
• - That then an injection device with a needle Plastic wire during the piercing process and the Plastic wire sticks into the ground,  
• - that the length of plastic wire needed for the piercing, subtracted from the piercing device from the Hopfensteig wire storage becomes,
• - That during the piercing process, if the necessary length Plastic wire has been withdrawn from the Hopfensteig wire storage is cut off the plastic wire by a cutter becomes,
• - That the plastic wire slides through the needle tip when piercing is pulled
• - That the cut length of the plastic wire by the Control is dimensioned so that after inserting the Plastic wire into the cut end of the soil Plastic wire still up towards Soil surface and this end acts like a barb and thus slipping the plastic wire out of the ground is prevented,
• - That the signal for cutting the plastic wire through a Timing element in the control or by a pressure setpoint, which at Inserting the puncture needle due to the increased resistance during Penetration into the earth is achieved, is given
• - That when cutting the plastic wire through the lower one Driver the end of the plastic wire remaining in it is held
• - That by a cross wire detection system Wire fastener once a cross wire through a front Detection system is detected as long as blocked by the controller until a rear recognition system has recognized that the Cross wire from the area of the wire fastening device has disappeared.

With regard to the device, the object is achieved by

• - That the fastening device between the base and Vertical frame consists on the one hand of a rotatably mounted shaft, so that the wire fastening device at the top of the Vertical frame a pivoting movement to the left or to the right can perform and on the other hand consists of a vertical guide, thus the vertical frame in a vertical axis to the base frame can be moved up and down
• - That a drive is arranged for the vertical movement,
• - That a drive is arranged for the pivoting movement,
• - That the Hopfensteig wire feeder over Guide elements and deflection elements movable in the direction of rotation is attached to the vertical frame,
• - That the Hopfensteig wire feeder at least two Hopfensteig wire clamping devices, which on the Hopfen wire feeding device opposite each other are arranged symmetrically,
• - That the Hopfensteig wire feeder has a drive,
• - That a transverse wire detection device at the upper end of Vertical scaffold is arranged,  
• - That the piercing device at an angle to the vertical axis of the Vertical frame in the direction of travel of the tractor and at an angle to Vertical axis of the vertical frame transverse to the direction of travel of the tractor is arranged so that the pierced plastic wire in the ground forms an angle to the vertical axis and thus slipping out the plastic wire from the ground is difficult.

Advantageous embodiments of the invention are in the subclaims described.

It is particularly advantageous if a plastic wire is used as the Hopfensteig wire Shape of a biodegradable monofilament is selected.

Another outstanding advantage is that as a wire fastening device well-known knotters (straw baler knoters e.g. System Rasspe®, Solingen) is used that a clamping device on the needle tip one per se known knotter can be opened and closed that the open Clamping the knotter's needle the plastic wire at a first Rotary movement of the needle engages and in a thread holder of the known Knüpfers threading, the driver still holding the wire end, that the thread holder clamps the threaded area of the plastic wire that before the backward movement of the needle to its basic position at its tip Clamping device is partially closed that the plastic wire in the Clamping device is held so loosely that it can still slide in the clamping area, that between the driver and the thread holder of the plastic wire is cut that the needle returns to its home position and the Plastic wire slides back in the sliding area with the length increasing Plastic wire that is needed for the backward movement of the needle through the Needle is pulled up from the Hopfensteig wire storage that the entire Knüpfer then makes an upward movement so that the needle at one second rotary movement engages over the carrier wire and over the plastic wire puts the carrier wire and one arranged in the knotter known per se Knotting device transfers that the knotting device by a rotary movement Knot created and thus knotted the plastic wire on the carrier wire that the clamping device is opened and the needle in its starting position is moved back and that the entire knot is back in its lower Starting position is brought back.

It is of the greatest advantage that as a wire fastening device itself Known clip device (bag closure clip device e.g. system Poly-Clip®, Frankfurt / M) is used that a needle by a rotational movement with its Needle tip is passed over the carrier wire and at the end of this rotary movement the plastic wire is firmly clamped in the needle tip by a clamping device is that the plastic wire is released by the driver, that then by a rotational movement backwards the needle back to its starting position is moved back, being the pinched end of the plastic wire takes and then at the end of the rotation backwards in the needle tip pinched end of the plastic wire itself at a close distance from the above, now the area of the plastic wire running over the carrier wire is that the two areas are closely spaced  the plastic wire together by a known clip device be clipped and that the clamping device of the needle is opened.

A great advantage in the construction of the device can be seen that the A wire fastener known per se (e.g. from Straw balers), which is modified in that the needle is a Has clamping device and in that the known knotters on a Lifting device with a hydraulic cylinder for the knotter stroke is arranged.

It is extremely advantageous in the construction of the device that the Wire fastening device a clip device known per se (e.g. Bag closure clip device), which is supplemented by the fact that for feeding the two pieces of plastic wire into the work area of the clip device one Needle with a clamping device on the upper area of the vertical frame is arranged.

One of the main advantages of the invention is that the device is very fast is working. This makes it possible for the first time when the tractor is moving continuously within from about 3 to 10 seconds, preferably 5 seconds, one each Attach Hopfen wire to the carrier wire and anchor it in the ground as well the route from one hop plant to the next, i.e. from one to the other Place of work to cope with. The tractor speed is between 0.5 and 1.5 km / h, preferably between 0.8 and 1.0 km / h. To operate the The device according to the invention does not require an additional man, it can do it alone operated by the tractor driver.

The structure and operation of the control unit, which is in the driver's cab of the tractor is arranged. The control unit of the The device according to the invention has a joystick, a changeover switch Manual / automatic, an emergency stop switch, a power button and one Release button on. With the joystick, the operator can enter a Bifang a hop garden, the device according to the invention conveniently so position that the particularly advantageous carrier wire detection device Carrier wire recognizes. The operator then switches from manual to manual automatic operation of the device and performs the Bifang, whereby only for each plant either manually by pressing the release button or automatically the work process of the Device must be triggered.

It is highly advantageous that the carrier wire detection device is contactless is working. This ensures that the carrier wire is always in its rest position remains and is not lifted off the cross wire or with the cross wire is moved up or to the side together.

So that the device does not work with the cross wires at intervals of approx. 3.0 to 10.0 m hold the carrier wire, it collides during its operation, it is from significant meaning that by a cross wire detection device in one defined area around the cross wire the operation of the device according to the invention is blocked. The defined area begins around 10  up to 80 cm, advantageously 30 cm, in front of the cross wire and ends approx. 5 to 50 cm, advantageously 5 cm behind the cross wire.

It is a particular advantage that the piercing device is in the direction of travel is pivotally mounted, so that it is ensured that when piercing the Puncture needle into the ground while the tractor is moving or the entire piercing device does not bend.

It is very advantageous that the connection from the hydraulic control block Device for tractor hydraulics according to the invention only by a pre and a Return line with quick fasteners can be made.

A very important advantage is that the entire device according to the invention only weighs about 300 kg, d. H. the front loader of the tractor can easily handle the device record and move, e.g. B. swing back into transport position, is also thereby the soil compaction when driving through the hop gardens negligible. It is particularly noteworthy that the weight of the whole device according to the invention is less than the weight of a hop pulpit two people and some bundle of iron wire.

It is very important that the device according to the invention by the angled Attaching the tractor mount to the driver's cab using the front loader Tractor can be swung back past. This ensures that the in Working position between approximately 5.00 to 7.00 m high device according to the invention also drove from the farm to the hop garden without any problems in road traffic can be. The maximum height in the swung-back transport position is approx. 3.20 m, so that telephone cables or power cables crossing the street as well Underpasses are easy to drive under and without interference.

The invention is illustrated below by means of examples explained in more detail.

Show it:

Fig. 1 is a schematic, not to scale illustration of a device according to the invention in plan view with knotter and hydraulic cylinder for knotter stroke;

FIG. 2 shows a schematic illustration, not to scale, of a device according to the invention in a soap view with knotter and hydraulic cylinder for knotter stroke according to FIG. 1;

Figure 3 is a schematic, not to scale, of a device according to the invention in top view with clip device.

FIG. 4 shows a schematic illustration, not to scale, of a device according to the invention in side view with clip device according to FIG. 3;

5 is an enlarged, schematic, not to scale view of the upper portion of the apparatus according to the invention with a clip device and a mechanical support wire recognition device.

Fig. 6 is an enlarged, schematic, not to scale view of the upper portion of the apparatus according to the invention with a clip device and non-contact support wire detection means;

Fig. 7 An enlarged, schematic, not to scale representation of the upper area of the device according to the invention with driver, needle, drive and hydraulic cylinder for the knotting stroke;

Fig. 8 An enlarged, schematic, not to scale representation of the needle with clamping device, magnet and linkage;

9 is an enlarged, schematic, not to scale, of a driver in a side view, front view and plan view.

Fig. 10 is an enlarged, schematic, not to scale view of the injection means in top view and side view;

Figure 11 is a schematic, not to scale, of the sub-frame in top view and side view.

Figure 12 is a schematic, not to scale view of the lower portion of the apparatus according to the invention with Kunststoffgleitführung.

Fig. 13 is an enlarged, schematic, not to scale, of the Kunststoffgleitführung invention according to FIG 12 in cross section.

Fig. 14 is a schematic, not to scale view of the device according to the invention on the tractor in the transport position;

Fig. 15 A schematic, not to scale representation of a plastic wire attached to the carrier wire with the device according to the invention with a clip device and pierced into the ground.

In Figs. 1 and 2, the overall view of the inventive device 1 is shown in schematic representation. The device essentially consists of a base frame 4 and a vertical frame 3 . The base frame 4 is connected to the vertical frame 3 via a plastic slide guide 22 . The vertical frame 3 is mounted in a height-adjustable manner in the base frame 4 via a hydraulic cylinder 16 for lifting. In addition, a pivot bearing for the vertical frame 3 is arranged in the base frame 4 by means of a pivot axis 52 and a hydraulic cylinder 15 for tilting. In the upper region of the vertical frame 3, a per se known knotter 19 is disposed belonging to the a hydraulic cylinder 17 for Knüpferhub and a needle 18th The vertical frame 3 itself is designed as a framework structure 2 . The truss structure 2 is constructed on three longitudinal beams and truss struts arranged between them. The vertical frame 3 is connected to the base frame 4 via the plastic slide guide 22 . The vertical frame 3 can be moved up and down with respect to the base frame 4 by means of the hydraulic cylinder 16 for lifting. A hydraulic cylinder 15 for tilting is provided for pivoting the vertical frame 3 . A tractor mount 21 is provided to accommodate the entire device on the front loader 50 of a tractor 51 . On the vertical frame 3 there is a chain 6 which is fastened via deflection elements 8 , 13 and guide elements 54 . A deflection element 13 designed as a chain wheel is driven by a fluid motor. There are two drivers 9 arranged symmetrically on the chain 6 . Also arranged on the vertical frame 3 is an insertion device 11 with an injection needle 12 . A cutting device 14 is installed below the driver 9 . An ultrasound system 10 is arranged in the upper area as a carrier wire detection device. A drive 5 is provided for driving the needle 18 . The plastic wire 7 is drawn off from a hop wire storage 20 and is guided via a plastic wire guide 53 through the driver 9 into the upper region of the vertical frame 3 .

In FIGS. 3 and 4, the device according to the invention in top view and side view is shown with a known clip device 23. The clip device 23 includes a needle 24 which is designed in a special way according to FIG. 8.

The Fig. 5 is a schematically enlarged view of the upper portion of the apparatus of the invention. A sensor wheel 25 is arranged here as carrier wire detection device. The transverse wire detection device consists of a front detection system 26 and a rear detection system 27 . The plastic wire 7 , arriving from the lower area, is held in this case in two drivers 9 in the upper area. However, it is also suitable if the plastic wire 7 is held in the upper area only by a driver 9 and a guide element. The clip device 23 is driven by the drive 5 . The chain 6 is guided on the upper deflection elements 28 designed as chain wheels.

In a modification of FIG. 5, FIG. 6 shows an ultrasound system 29 as the carrier wire detection system. The ultrasound system 29 recognizes the carrier wire 55 and controls the hydraulic cylinder 15 for tilting and the hydraulic cylinder 16 for lifting in such a way that the carrier wire 55 always remains in the same predetermined, defined position relative to the needle 24 .

In FIG. 7 of per se known knotter 19 is shown with its drive 5 and with its hydraulic cylinder 17 for Knüpferhub and the needle 18 schematically. The arrangements of the driver 9 on the chain 6 can also be seen.

Fig. 8 shows the configuration of the needle 24. The needle 24 has a magnet 30 which, controlled by the control, actuates a linkage 31 , with which a clamping device 32 on the needle tip 33 is moved.

Fig. 9 shows a schematic representation of the driver 9 in side view, front view and top view. On the first part of the driver 9 there is a roller 34 , on the second part of the driver 9 there is a roller 35 . The first part of the driver 9 is rotatably supported against the second part of the driver 9 . Between the first part and the second part of the driver 9 there is a spring 36 which presses the first part against the second part of the driver 9 . A clamping gap 37 for the plastic wire 7 is formed between the first part and the second part of the driver 9 .

A plan view and a side view of the piercing device 11 are shown schematically in FIG. 10. A rack 41 is mounted in a plastic sliding guide 40 . The injection needle 42 is located on the rack 41 . The rack 41 is guided by a gear 38 for guidance and driven by a gear drive 39 .

Fig. 11 shows a side view and a plan view of the frame 4. The hop wire riser 20 and the tractor receptacle 21 are arranged in or on the base frame 4 . In the plan view it can be seen that the tractor holder 21 is arranged at an angle to the vertical axis of the device 1 according to the invention. This is necessary so that with the front loader 50 the entire device 1 according to the invention can be pivoted past the driver's cab 49 into a transport position.

FIG. 12 shows a section of the lower region of the device 1 according to the invention. For lifting the vertical frame 3 , the hydraulic cylinder 16 is arranged for lifting. The pivot axis 52 is provided for pivoting the vertical frame 3 . The vertical frame 3 moves in the plastic slide guide 22 during its upward or downward movement.

FIG. 13 is a schematically enlarged view of the structure of the Kunststoffgleitführung 22nd The vertical scaffold tube 43 is connected to the steel sliding element 45 via screw connections 44 . The steel sliding element 45 slides it over the plastic sliding element 46 . The plastic sliding element 46 is held in the steel receptacle 47 for the plastic sliding element 46 . A vertical guide support tube 48 can also be provided for support.

The entire device 1 according to the invention can be seen in the transport position on the tractor 51 in FIG. 14. With the front loader 50 , the entire device 1 according to the invention is pivoted past the driver's cab 49 into the transport position.

Fig. 15 shows schematically a plastic wire 7 as it is mounted on the support wire 55 and is inserted into the ground with a acting as barbs angle.

The operation of the device according to the invention will now be described with reference to described two examples.

example 1

Example 1 describes the procedure of the device 1 according to the invention when using a knotter 19 known per se. The knotter 19 known per se can be a knot from a straw baler, for example according to the Rasspe® system, Solingen. The device 1 is equipped in its hop wire storage 20 with a plastic wire 7 constructed as a cross wrap. There are 15,000 m of plastic wire 7 in hop hop wire storage 20 .

The hop grower drives his tractor 51 and the device 1 attached to the front loader 50 in the transport position to his hop garden. Once there, the front loader 50 swivels the entire device 1 into the vertical working position. He adjusts the front loader height so that the underframe 4 is between about 10 and 20 cm from the floor. When entering the bifang of the hop garden, the tractor driver brings the knotter 19 by lifting or lowering the hydraulic cylinder 16 or by pivoting the hydraulic cylinder 15 to the left or right as far as near the ultrasound system 10 with the joystick on his operating device, so that this then in the Location can be seen the carrier wire 55 . The operator recognizes this by the lighting up of a control lamp on the control unit. Then he switches the control to automatic operation. By controlling the hydraulic cylinders 15 for tilting or hydraulic cylinders 16 for lifting, the ultrasound system 10 now ensures that the knotter 19 is always held in a defined position relative to the carrier wire 55 . The hop grower now drives his tractor 51 and the device 1 attached to the front loader 50 through the bifang of his hop garden. Whenever the device 1 is in a suitable position for a hop plant, the tractor driver actuates the release button. With this, he triggers a working cycle of the entire device 1 .

This means that first the needle 18 grips the plastic wire 7 during its rotational movement and passes it under the carrier wire 55 to the yarn holder of the knotter 19 known per se. Here, with the use of two symmetrically arranged carriers 9 of the upper driver 9 still keeps the plastic wire 7 fixed while the lower cam slide can be carried through the nip 37 7 the plastic wire. 9 The carriers 9 are opened and closed or kept open or kept closed by pressing against the rollers 34 , 35 or releasing the pressure against the rollers 34 , 35 .

When the thread holder has taken over the plastic wire 7 , the clamping device 32 closes so far that the plastic wire 7 can still slide through. The needle 18 rotates back into its starting position and thereby pulls the plastic wire 7 back with it. The hydraulic cylinder 17 then moves the entire knotter 19 with the needle 18 upward for the knotting stroke.

The needle now performs a second rotary movement. This rotational movement of the needle 18 performs the needle 18 now over the support wire 55 away again in the known knotter 19, in which then a node is created by a rotary motion of a known knotting device.

After the knot has been made, the clamping device 32 of the needle tip 33 opens and the needle 18 moves back into its starting position. The plastic wire 7 is thus knotted with the carrier wire 55 .

The hydraulic cylinder 17 for the knotter stroke moves back down to its starting position.

Then, by means of the gear drive 39, the rack 41 , on which the injection needle 42 is located, is moved in the direction of the ground. In the lower left deflection element 13 designed as a chain wheel, the plastic wire 7 is gripped by the injection needle 42 . The plastic wire 7 slides through the tip of the injection needle 42 and through the driver 9 and is removed from the hop wire storage 20 . A plastic wire guide 53 is arranged to hold it tight and guide it.

When the tip of the injection needle 42 penetrates into the ground, a signal is given to the cutting device 14 via the pressure increase in the hydraulic system associated therewith, which then cuts off the plastic wire 7 . At this moment, the driver 9 holds the cut end of the plastic wire 7 remaining in it.

The piercing needle 42 has a mechanical switch 40 cm from its tip, which, when the piercing needle 24 is pierced 40 cm into the ground, emits a switching pulse by contact with the ground and thus ends the piercing process. The injection needle 42 then moves back to its starting position.

The plastic wire 7 remains stuck in the ground.

Thereafter, a deflection element 13 designed as a chain wheel is driven by a fluid motor and the chain 6 moves the lower driver 9 into its upper position and at the same time the upper driver 9 into its lower position. During this movement, the driver 9 initially arranged at the bottom takes the plastic wire 7 into the upper position. The driver 9 withdraws the plastic wire 7 from the hop wire storage 20 . A brake is arranged between the hop wire storage 20 and the driver 9 so that a uniform removal of the plastic wire 7 from the hop wire storage 20 without loop formation is possible.

Since the piercing process takes place while the tractor 51 is traveling, the pivotably mounted piercing device 11 moves against the direction of travel while the tractor 51 is traveling. This prevents the injection needle 42 from bending.

When the tractor driver then reaches the next suitable position of the device 1 for the next hop plant, he triggers the same work cycle again.

If the cross wire detection device detects when the work cycle is triggered that there is a cross wire 56 between the front detection system 26 and the rear detection system 27 , the control blocks the work cycle until the cross wire has passed the rear detection system 27 . Then the triggered work cycle runs automatically in the manner described above.

During the travel of the tractor 51 , which can also lead through depressions or elevations in the hop garden or when the carrier wire 55 sags between the support locations on the transverse wire 56 and the position of the carrier wire 55 to the knotter 19 would change, these changes are made by the ultrasound system 10 recognized. The signals from the ultrasound system 10 are processed further by the control. The controller controls the cylinder 15 for tilting and cylinder 16 for lifting via the hydraulic control block so that the knotter always remains in the same defined position with respect to the carrier wire.

Example 2

In example 2, the procedure of the device 1 according to the invention when using a clip device 23 known per se is described. The known clip device 23 can be a bag closure clip device, for example according to the Poly-Clip® system, Frankfurt / Main.

The device 1 in its hop wire storage 20 is equipped with a plastic wire 7 wound as a cross wrap on a coil. There are approximately 15,000 m of plastic wire 7 in hop hop wire storage 20 . The hop grower drives his tractor 51 and the device 1 attached to the front loader 50 in the transport position to his hop garden. Once there, the front loader 50 swivels the entire device 1 into the vertical working position. He adjusts the front loader height so that the underframe 4 is between about 10 and 20 cm from the floor. When driving into the bifang of the hop garden, the tractor driver brings the clip device 23 with the joystick on his operating device by lifting or lowering the hydraulic cylinder 16 or by pivoting the hydraulic cylinder 15 to the left or right as far as near the ultrasound system 10 , so that the latter is then able to recognize the carrier wire 55 . The operator recognizes the correct position when a control lamp lights up on the control unit. Then he switches the control to automatic operation. By controlling the hydraulic cylinders 15 for tilting or hydraulic cylinders 16 for lifting, the ultrasound system 10 now ensures that the knotter 19 is always held in a defined position relative to the carrier wire 55 .

The hop grower now drives his tractor 51 and the device 1 attached to the front loader 50 through the bifang of his hop garden at a speed of approximately 0.9 km / h. Whenever the device 1 is in a suitable position for a hop plant, the tractor driver actuates the release button. With this, he triggers a working cycle of the entire device 1 .

This means that first the needle 24 is moved over the carrier wire 55 during its rotational movement and grips and holds the plastic wire 7 behind the carrier wire. This is done in that the clamping device 32 on the needle tip 33 is firmly closed by the magnet 30 by means of the linkage 31 . Thereafter, when using only two symmetrically arranged drivers 9, the upper driver 9 releases the end of the plastic wire 7 , and the lower driver 9 allows the plastic wire 7 to slide through the clamping gap 37 . The carriers 9 are opened and closed or kept open or kept closed by pressing against the rollers 34 , 35 or releasing the pressure against the rollers 34 , 35 .

The needle 24 rotates back into its starting position and thereby pulls the plastic wire 7 back over the carrier wire 55 .

The clip device 23 now attaches to the two adjacent parts of the plastic wire 7 a fastening clip, for. B. made of aluminum. The plastic wire 7 is thus fastened to the carrier wire 55 .

Then, by means of the gear drive 39, the rack 41 , on which the injection needle 42 is located, is moved in the direction of the ground. In the lower left deflection element 13 designed as a chain wheel, the plastic wire 7 is gripped by the injection needle 42 . The plastic wire 7 slides through the tip of the injection needle 42 and through the driver 9 and is removed from the hop wire storage 20 . A plastic wire guide 53 is arranged to hold it tight and guide it. When the tip of the injection needle 42 penetrates into the ground, a signal is given to the cutting device 14 via the pressure increase in the hydraulic system associated therewith, which then cuts off the plastic wire 7 .

At this moment, the driver 9 holds the cut end of the plastic wire 7 remaining in it.

The piercing needle 42 has a mechanical switch 40 cm from its tip, which, when the piercing needle 24 is pierced 40 cm into the ground, emits a switching pulse by contact with the ground and thus ends the piercing process. The injection needle 42 then moves back to its starting position.

The plastic wire 7 remains stuck in the ground. During the piercing process, the clip device 23 can still remain closed, which brings about a strain relief on the carrier wire 55 , but it can also already be open.

Then one of the deflection elements 13 designed as a chain wheel is driven by a fluid motor and the chain 6 moves the lower driver 9 into its upper position and at the same time the upper driver 9 into its lower position. During this movement, the driver 9 initially arranged at the bottom takes the plastic wire 7 , which is held in the clamping gap 37 , into the upper position. The driver 9 withdraws the plastic wire 7 from the hop wire storage 20 .

A brake is arranged between the hop wire storage 20 and the driver 9 so that a uniform removal of the plastic wire 7 from the hop wire storage 20 without loop formation is possible.

Since the piercing process takes place while the tractor 51 is traveling, the pivotably mounted piercing device 11 executes a movement relative to the vertical frame 3 against the direction of travel while the tractor 51 is traveling. This prevents the injection needle 42 from bending.

If the tractor driver then the next suitable position of the device for reached the next hop plant, it triggers the same work cycle again.

If the cross wire detection device detects when the work cycle is triggered that there is a cross wire 56 between the front detection system 26 and the rear detection system 27 , the control blocks the work cycle until the cross wire has passed the rear detection system 27 . Then the triggered work cycle runs automatically in the manner described above.

During the travel of the tractor 51 , which can also lead through depressions or elevations in the hop garden or when the carrier wire 55 sags between the support locations on the transverse wire 56 and the position of the carrier wire 55 to the knotter 19 would change, these changes are made by the ultrasound system 10 recognized. The signals from the ultrasound system 10 are processed further by the control. The controller controls the cylinder 15 for tilting and cylinder 16 for lifting via the hydraulic control block so that the knotter always remains in the same defined position with respect to the carrier wire.

The journey from one hop plant to the next takes only about 5 seconds, including a complete working cycle of the device 1 according to the invention.

Reference list

1

General view of the device

2nd

Truss construction

3rd

Vertical frame

4

Underframe

5

drive

6

Chain

7

Plastic wire

8th

Deflecting element

9

Carrier

10th

Ultrasound system

11

Piercing device

12th

Injection needle

13

Deflecting element

14

Cutting device

15

Hydraulic cylinder for tipping

16

Hydraulic cylinder for lifting

17th

Hydraulic cylinder for knotting stroke

18th

needle

19th

Knotters

20th

Hop climbing wire storage

21

Tractor mount

22

Plastic slide guide

23

Clip device

24th

needle

25th

Sensor wheel

26

Front detection system for the cross wire

27

Rear cross wire detection system

28

Deflecting element

29

Ultrasound system

30th

magnet

31

Linkage

32

Clamping device

33

Needle point

34

Front roller

35

Rear roller

36

feather

37

Clamping gap for plastic wire

38

Gear wheel for guidance

39

Gear drive

40

Plastic slide guide

41

Rack

42

Injection needle

43

Vertical scaffold tube

44

Screw connection

45

Steel sliding element

46

Plastic sliding element

47

Steel holder for plastic sliding element

48

Vertical guide support tube

49

Driver's cabin

50

Front loader

51

tractor

52

Swivel axis

53

Plastic wire guide

54

Guide element

55

Carrier wire

56

Cross wire

Claims (81)

1. Method for the automatic automatic connection of Hopfensteig wire to a carrier wire ( 55 ) and piercing the Hopfensteig wire into the ground with the following steps:

• - The tying and piercing takes place during the continuous drive through the hop garden with a tractor ( 51 ) to which the device is attached,
• - Automatic positioning of a wire fastening device in the vicinity of the carrier wire ( 55 ) by drives between the vertical frame ( 3 ) and the base frame ( 4 ), controlled by a carrier wire detection system,
• Feeding the Hopfensteig wire from a Hopfensteig wire storage device ( 20 ) by means of a Hopfensteig wire feed device into the area of the wire fastening device,
• Attaching the Hopfensteig wire to the carrier wire ( 55 ) by means of the wire fastening device,
• - Anchoring the Hopfensteig wire in the ground and
• - cutting off the Hopfensteig wire,

characterized by

• - That a plastic wire ( 7 ) is used as Hopfensteig wire,
• - That the wire fastening device is located below the carrier wire ( 55 ),
• - That the free end of the plastic wire ( 7 ) is fed to the wire fastening device,
• - That the wire fastening device fastens the plastic wire ( 7 ) to the carrier wire ( 55 ),
• - That then a piercing device ( 11 ) with a piercing needle ( 12 ) picks up the plastic wire ( 7 ) during the piercing process and pierces the plastic wire ( 7 ) into the ground,
• - That the length of plastic wire ( 7 ), which is required for the piercing, is subtracted from the piercing device ( 11 ) from the hop wire riser ( 20 ),
• - That the plastic wire ( 7 ) is cut off by a cutting device ( 14 ) during the piercing process, when the necessary length of plastic wire ( 7 ) has been withdrawn from the hop wire storage ( 20 ),
• - That the plastic wire ( 7 ) is slidably pulled through the needle tip ( 33 ) when piercing,
• - That the cut length of the plastic wire ( 7 ) is dimensioned by the control so that after the insertion of the plastic wire ( 7 ) in the soil, the cut end of the plastic wire ( 7 ) still points upwards towards the surface of the earth and this end as one Barb acts and prevents the plastic wire ( 7 ) from slipping out of the ground,
• - That the signal for cutting the plastic wire ( 7 ) is given by a timer in the control or by a pressure setpoint, which is achieved when the puncture needle ( 12 ) is inserted through the increased resistance when penetrating into the ground,
• - That when cutting the plastic wire ( 7 ) by the lower driver ( 9 ) the end of the plastic wire ( 7 ) remaining in it is held,
• - That by a cross wire detection system, the wire fastening device, as soon as a cross wire ( 56 ) is detected by a front detection system ( 26 ), blocked by the controller until a rear detection system ( 27 ) has detected that the cross wire ( 56 ) from the Area of the wire fastening device has disappeared.

2. A method for the mechanical automatic connection of Hopfensteig wire to a carrier wire ( 55 ) and piercing the Hopfensteig wire into the ground according to claim 1, characterized in that a monofilament is used as the plastic wire ( 7 ). 3. A method for the automatic automatic connection of Hopfensteig wire to a carrier wire ( 55 ) and piercing the Hopfensteig wire into the ground according to one or more of the preceding claims, characterized in that a biodegradable monofilament is used as the plastic wire ( 7 ). 4. A method for the automatic mechanical connection of Hopfensteig wire to a carrier wire ( 55 ) and piercing the Hopfensteig wire into the ground according to one or more of the preceding claims, characterized in that a yarn is used as the plastic wire ( 7 ). 5. A method for the automatic mechanical connection of Hopfensteig wire to a carrier wire ( 55 ) and piercing the Hopfensteig wire into the ground according to one or more of the preceding claims, characterized in that a biodegradable yarn is used as the plastic wire ( 7 ). 6. A method for the mechanical automatic connection of Hopfensteig wire to a carrier wire ( 55 ) and piercing the Hopfensteig wire into the ground according to one or more of the preceding claims, characterized in that

• - That a known knotter ( 19 ) (straw baler knotter) is used as the wire fastening device,
• - That a clamping device ( 32 ) on the needle tip ( 33 ) of a knotter ( 19 ) known per se can be opened and closed,
• - That the opened clamping device ( 32 ) of the needle ( 18 ) of the knotter ( 19 ) engages the plastic wire ( 7 ) during a first rotational movement of the needle ( 18 ) and threading into a yarn holder of the known knotter ( 19 ), of which Driver ( 9 ) the wire end is still held,
• - That the thread holder clamps the threaded area of the plastic wire ( 7 ),
• - That the clamping device ( 32 ) is partially closed before the backward movement of the needle ( 18 ) into its basic position at its tip,
• - That the plastic wire ( 7 ) in the clamping device ( 32 ) is held so loosely that it can still slide in the clamping area,
• - That the plastic wire ( 7 ) is cut in the per se known knotter between the driver ( 9 ) and the thread holder,
• - That the needle ( 18 ) returns to its basic position and the plastic wire ( 7 ) slides back in the sliding area, the length of plastic wire ( 7 ) required for the backward movement of the needle ( 18 ) through the needle ( 18 ) is pulled up from the Hopfensteig wire storage ( 20 ),
• - That the entire knotter ( 19 ) then performs an upward movement so that the needle ( 18 ) engages in a second rotary movement over the carrier wire ( 55 ) and sweeps the plastic wire ( 7 ) over the carrier wire ( 55 ) and one in itself transfers known knotting device ( 19 ) arranged knotting device,
• - That the knotting device creates a knot by a rotary movement and thus knots the plastic wire ( 7 ) on the carrier wire ( 55 ),
• - That the clamping device ( 32 ) is opened and the needle ( 18 ) is moved back into its starting position and
• - That the entire knotter ( 19 ) is returned to its lower starting position.

7. A method for automatically connecting Hopfensteig wire to a carrier wire ( 55 ) and inserting the Hopfensteig wire into the ground according to one or more of the preceding claims, characterized in that

• - That a known clip device ( 23 ) (bag closure clip device) is used as the wire fastening device,
• - That a needle ( 24 ) is guided by a rotary movement with its needle tip ( 33 ) over the carrier wire ( 55 ) and at the end of this rotary movement the plastic wire ( 7 ) is firmly clamped in the needle tip ( 33 ) by a clamping device ( 32 ),
• - That the plastic wire ( 7 ) is released by the driver ( 9 ),
• - That the needle ( 24 ) is then moved backwards into its starting position by a rotary movement, taking the pinched end of the plastic wire ( 7 ) with it and then at the end of the rotary movement backwards the end of the plastic wire ( 7 ) pinched in the needle tip ( 33 ) ) is located at a close distance from the area of the plastic wire ( 7 ) which now runs above the carrier wire ( 55 ),
• - That the two areas of the plastic wire ( 7 ) located at a close distance from each other are clipped together by a clip device ( 23 ) known per se,
• - That the clamping device ( 32 ) of the needle is opened.

8. A method for the automatic automatic connection of Hopfensteig wire to a carrier wire ( 55 ) and piercing the Hopfensteig wire into the ground according to one or more of the preceding claims, characterized in that

• - That the signal is given manually at the beginning of a work cycle.

9. A method for the mechanical automatic connection of Hopfensteig wire to a carrier wire ( 55 ) and piercing the Hopfensteig wire into the ground according to one or more of the preceding claims, characterized in that

• - That the signal at the start of a working cycle is given by a hop plant detection device.

10. Device for the automatic automatic connection of Hopfensteig wire to a carrier wire ( 55 ) and piercing the Hopfensteig wire into the ground to carry out the method according to claim 1,

• - With a base ( 4 ) for attachment to a tractor ( 51 ),
• - With a vertical frame ( 3 ) movably connected to the base frame ( 4 )
• - With a fastening device between the base frame ( 4 ) and vertical frame ( 3 ),
• - With a vertical frame designed as a truss ( 3 ),
• - With fastening elements for fastening the underframe ( 4 ) to a tractor ( 51 ),
• - With a hop wire feeding device on the vertical frame ( 3 ),
• - With a wire fastening device at the upper end of the vertical frame ( 3 ),
• with a carrier wire detection device,
• - With a piercing device ( 11 ) on the vertical frame ( 3 ),
• - With a cutting device ( 14 ),
• - With a hop rope wire storage ( 20 ) and
• - with a control,

characterized,

• - That the fastening device between the base frame ( 4 ) and the vertical frame ( 3 ) consists on the one hand of a rotatably mounted shaft so that the wire fastening device at the upper end of the vertical frame ( 3 ) can pivot to the left or to the right and on the other hand consists of a vertical guide, so that the vertical frame ( 3 ) can be moved up and down in a vertical axis relative to the base frame ( 4 ),
• - That a drive is arranged for the vertical movement,
• - That a drive is arranged for the pivoting movement,
• - That the Hopfensteig wire supply device is fastened to the vertical frame ( 3 ) via guide elements and deflection elements ( 8 , 13 , 28 ) so that it can move in the circumferential direction,
• that the hop wire feeding device has at least two hop wire clamping devices, which are arranged symmetrically opposite each other on the hop wire feeding device,
• - That the Hopfensteig wire feeder has a drive,
• - That a cross wire detection device is arranged at the upper end of the vertical frame ( 3 ),
• - That the piercing device ( 11 ) at an angle to the vertical axis of the vertical frame ( 3 ) in the direction of travel of the tractor ( 51 ) and at an angle to the vertical axis of the vertical frame ( 3 ) is arranged transversely to the direction of travel of the tractor ( 51 ), so that the pierced Plastic wire ( 7 ) forms an angle to the vertical axis in the ground, making it difficult for the plastic wire ( 7 ) to slip out of the ground.

11. The device according to one or more of the preceding claims, characterized in that

• - That the framework of the vertical frame ( 3 ) is flat, constructed in one plane and has two side members.

12. The device according to one or more of the preceding claims, characterized in that

• - That the vertical frame ( 3 ) is three-dimensional and has more than two side members.

13. The device according to one or more of the preceding claims, characterized in that

• - That the vertical frame ( 3 ) is triangular in cross section and has three longitudinal beams.

14. The device according to one or more of the preceding claims, characterized in that

• - That the vertical frame ( 3 ) is square in cross section and has four longitudinal beams.

15. The device according to one or more of the preceding claims, characterized in that

• - That the vertical guide is a column guide on each side member.

16. The device according to one or more of the preceding claims, characterized in that

• - That the vertical guide is a plastic slide guide ( 22 ) on each side member.

17. The device according to one or more of the preceding claims, characterized in that

• - That the plastic sliding guide ( 22 ) for each side member from the side member, screw connections ( 44 ), a one-piece or multi-piece steel sliding element ( 45 ), a one-piece or multi-piece plastic sliding element ( 46 ) and a steel receptacle ( 47 ) for the plastic sliding element ( 46 ) is constructed with or without a vertical guide support tube.

18. The device according to one or more of the preceding claims, characterized in that

• - That the base ( 4 ) is a truss structure.

19. The device according to one or more of the preceding claims, characterized in that

• - That the drives are hydraulic drives and / or electric drives and / or pneumatic drives and / or magnetic drives and / or electromagnetic drives.

20. The device according to one or more of the preceding claims, characterized in that

• - That the hydraulic drives are hydraulic cylinders and / or fluid motors.

21. The device according to one or more of the preceding claims, characterized in that

• - That the fastening elements for fastening the base frame ( 4 ) on the tractor ( 51 ) for receiving the entire device by the front loader of the tractor ( 51 ) are formed.

22. The device according to one or more of the preceding claims, characterized in that the fastening elements for fastening the underframe ( 4 ) on the tractor ( 51 ) are designed in accordance with European standards. 23. The device according to one or more of the preceding claims, characterized in that

• - That the fasteners are arranged at an angle to the vertical axis, so that the entire device, but in particular the vertical frame ( 3 ) by the front loader hydraulics can be swung backwards to the driver's cab of the tractor ( 51 ) into a transport position.

24. The device according to one or more of the preceding claims, characterized in that

• - That the fastening elements for fastening the base frame ( 4 ) on a tractor ( 51 ) are designed so that the entire device can be attached directly to the tractor ( 51 ) at the front, side or rear.

25. The device according to one or more of the preceding claims, characterized in that

• - That the vertical frame ( 3 ) is in two parts and is separable in the longitudinal axis approximately in the middle.

26. The device according to one or more of the preceding claims, characterized in that

• - That the Hopfensteig wire supply device is a circulating chain ( 6 ).

27. The device according to one or more of the preceding claims, characterized in that

• - That when using a chain ( 6 ) the deflection elements ( 8 , 13 , 28 ) are sprockets.

28. The device according to one or more of the preceding claims, characterized in that

• - That when using a chain ( 6 ) the guide elements are sprockets and / or plastic sliding guides.

29. The device according to one or more of the preceding claims, characterized in that

• - That the Hopfensteig wire supply device is a rotating toothed belt.

30. The device according to one or more of the preceding claims, characterized in that

• - That when using a toothed belt, the deflection elements ( 8 , 13 , 28 ) are toothed belt pulleys.

31. The device according to one or more of the preceding claims, characterized in that

• - That when using a toothed belt, the guide elements are toothed belt pulleys and / or plastic sliding guides.

32. Device according to one or more of the preceding claims, characterized in that

• - That the driver ( 9 ) consist of two by means of spring ( 36 ) pressed against each other clamping elements, wherein a clamping gap ( 37 ) is formed between the clamping elements and the clamping by releasing the spring ( 36 ) is releasable.

33. Device according to one or more of the preceding claims, characterized in that

• - That the Hopfensteig wire feeder has two pairs of drivers ( 9 ) which are arranged in pairs symmetrically opposite to the Hopfensteig wire feeder or that instead of the rear driver ( 9 ) seen in the chain movement direction, only one guide element is arranged.

34. Device according to one or more of the preceding claims, characterized in that

• - That the two each form a pair of drivers ( 9 ) and the drivers ( 9 ) each have a small distance from each other to the guide element assigned to them from about 10 to 250 mm.

35. Device according to one or more of the preceding claims, characterized in that

• - That the movable clamping device ( 32 ) on the needle tip ( 33 ) is actuated by a Bowden cable controlled by a cam.

36. Device according to one or more of the preceding claims, characterized in that

• - That the movable clamping device ( 32 ) on the needle tip ( 33 ) by a magnet ( 30 ) with a linkage ( 31 ) is actuated.

37. Device according to one or more of the preceding claims, characterized in that

• - That the movable clamping device ( 32 ) on the needle tip ( 33 ) is actuated electrically.

38. Device according to one or more of the preceding claims, characterized in that

• - That the movable clamping device ( 32 ) on the needle tip ( 33 ) is actuated mechanically.

39. Device according to one or more of the preceding claims, characterized in that

• - That the carrier wire detection device is a non-contact ultrasound system.

40. Device according to one or more of the preceding claims, characterized in that

• - That the ultrasound system consists essentially of one or more ultrasound sensors and a control unit.

41. Device according to one or more of the preceding claims, characterized in that

• - That the carrier wire detection device is a non-contact infrared system.

42. Device according to one or more of the preceding claims, characterized in that

• - That the carrier wire detection device is a non-contact radar system.

43. Device according to one or more of the preceding claims, characterized in that

• - That the carrier wire detection device is a system working with mechanical sensors.

44. Device according to one or more of the preceding claims, characterized in that

• - That the sensors for the carrier wire ( 55 ) switch electrically by means of mechanical actuation.

45. Device according to one or more of the preceding claims, characterized in that

• - That the sensors for the carrier wire ( 55 ) switch electrically by means of inductive signal detection.

46. Device according to one or more of the preceding claims, characterized in that

• - That the sensors for the carrier wire ( 55 ) switch electrically by means of optoelectronic signal detection.

47. Device according to one or more of the preceding claims, characterized in that

• - That the cross wire detection device is constructed from two identical detection systems, namely a front detection system ( 26 ) and a rear detection system ( 27 ), the front detection system ( 26 ) in front of the wire fastening device and the rear detection system ( 27 ) after the wire fastening device, seen in the direction of travel , is arranged.

48. Device according to one or more of the preceding claims, characterized in that

• - That the detection systems for the cross wire ( 56 ) are non-contact ultrasound systems.

49. Device according to one or more of the preceding claims, characterized in that

• - That the ultrasound system consists essentially of one or more ultrasound sensors and a control unit.

50. Device according to one or more of the preceding claims, characterized in

• - That the detection systems for the cross wire ( 56 ) are non-contact infrared systems.

51. Device according to one or more of the preceding claims, characterized in that

• - That the detection systems for the cross wire ( 56 ) are non-contact radar systems.

52. Device according to one or more of the preceding claims, characterized in that

• - That the detection systems for the cross wire ( 56 ) with mechanical sensors are working systems.

53. Device according to one or more of the preceding claims, characterized in that

• - That the sensors for the cross wire ( 56 ) switch electrically by means of mechanical actuation.

54. Device according to one or more of the preceding claims, characterized in that

• - That the sensors for the cross wire ( 56 ) switch electrically by means of inductive signal detection.

55. Device according to one or more of the preceding claims, characterized in that

• - That the sensors for the cross wire ( 56 ) switch electrically by means of optoelectronic signal detection.

56. Device according to one or more of the preceding claims, characterized in that

• - That the wire fastening device is a known knotter ( 19 ) (from straw balers), which is modified in that the needle has a clamping device ( 32 ) and in that the known knotter ( 19 ) on a lifting device with a Hydraulic cylinder for the knotter stroke ( 17 ) is arranged.

57. Device according to one or more of the preceding claims, characterized in that

• - That a positioning device is arranged in the area of the Hopfensteig wire takeover by the needle through which the plastic wire ( 7 ) is brought into position and held.

58. Device according to one or more of the preceding claims, characterized in that

• - That the lifting device for the knotter ( 19 ) is guided over two or three columns.

59. Device according to one or more of the preceding claims, characterized in that

• - That the lifting device for the knotter ( 19 ) is guided over two or three plastic sliding guides.

60. Device according to one or more of the preceding claims, characterized in that

• - That the lifting device for the knotter ( 19 ) is driven via a rack and pinion and / or columns and / or plastic sliding guides.

61. Device according to one or more of the preceding claims, characterized in

• - That the wire fastening device is a known clip device ( 23 ) (z. B. bag closure clip device), which is supplemented by the fact that for feeding the two parts of the plastic wire ( 7 ) in the working area of the clip device ( 23rd ) a needle with a clamping device ( 32 ) is arranged on the upper region of the vertical frame ( 3 ).

62. Device according to one or more of the preceding claims, characterized in that

• - That the controller is a programmable logic controller (PLC).

63. Device according to one or more of the preceding claims, characterized in that

• - That the control is a microprocessor control.

64. Device according to one or more of the preceding claims, characterized in that

• - That the controller is a PC controller.

65. Device according to one or more of the preceding claims, characterized in that

• - That the drive of the piercing device ( 11 ) has a device for switching off via a pressure setpoint or a force setpoint.

66. Device according to one or more of the preceding claims, characterized in that

• - That the drive of the piercing device ( 11 ) has a device for switching off via a mechanically operating switch, which on the injection needle ( 12 ) or on its fastening rod, for. B. rack or piston rod is arranged.

67. Device according to one or more of the preceding claims, characterized in that

• - That the piercing device ( 11 ) has a toothed rack ( 41 ) driven by a fluid motor with a gear drive ( 39 ), with a toothed wheel ( 38 ) for guidance, with a plastic sliding guide ( 40 ) and the puncture needle ( 42 ) attached to the rack ( 41 ).

68. Device according to one or more of the preceding claims, characterized in that

• - That the piercing device ( 11 ) has a hydraulic cylinder with a piston rod to which the injection needle ( 12 ) is attached.

69. Device according to one or more of the preceding claims, characterized in that

• - That the injection needle ( 42 ) is made of spring steel.

70. Device according to one or more of the preceding claims, characterized in that

• - That the injection needle ( 42 ) made of carbon or glass fiber or aramid fiber reinforced plastic.

71. Device according to one or more of the preceding claims, characterized in that

• - That the Hopfensteig wire storage ( 20 ) is a coil with the wound plastic wire ( 7 ).

72. Device according to one or more of the preceding claims, characterized in that

• - That the Hopfensteig wire storage ( 20 ) is the coreless wound into a cross wrap plastic wire ( 7 ).

73. Device according to one or more of the preceding claims, characterized in that

• - That the Hopfensteig wire storage ( 20 ) is wound on a spool to form a cross winding plastic wire ( 7 ).

74. Device according to one or more of the preceding claims, characterized in that

• - That between hop hop wire storage ( 20 ) and takeover point of the plastic wire ( 7 ) by the driver ( 9 ) a plastic wire guide ( 53 ) is arranged.

75. Device according to one or more of the preceding claims, characterized in that

• - That between hop rope wire storage ( 20 ) and takeover point of the plastic wire ( 7 ) by the driver ( 9 ) a tensioning device, for. B. spring strips or coil springs with plastic wire guide eyelets for the plastic wire ( 7 ) is arranged.

76. Device according to one or more of the preceding claims, characterized in that

• - That between Hopfensteig wire storage ( 20 ) and takeover point of the plastic wire ( 7 ) by the driver ( 9 ) a brake, for. B. two resiliently pressed plastic plates, through the contact gap of the plastic wire ( 7 ) is drawn for the plastic wire ( 7 ) is arranged.

77. Device according to one or more of the preceding claims, characterized in that

• - That a coil brake is arranged on the Hopfensteig wire storage ( 20 ).

78. Device according to one or more of the preceding claims, characterized in that

• - That the piercing device ( 11 ) is pivotally mounted in the direction of travel of the tractor ( 51 ).

79. Device according to one or more of the preceding claims, characterized in that

• - That the pivotally mounted piercing device ( 11 ) is rotatably mounted at the upper end and is slidably mounted in the center area in a plastic slide rail.

80. Device according to one or more of the preceding claims, characterized in that

• - That a hop plant detection device is arranged on the device.

81. Device according to one or more of the preceding claims, characterized in that

• - That a visual camera on the device and a monitor are arranged in the driver's cabin for visual hop plant detection.