DE102014105577A1 - Device and method and installation system for laying at least one strand in a floor surface - Google Patents

Abstract

The invention relates to a device for laying preferably at least one strand in a floor surface, especially a sports or leisure facility or an agricultural area, comprising an excavating device for forming a dimensionally stable slot-shaped recess in the bottom surface and providing occurring Aushubs, a Strangeinbringeinrichtung over the at least one strand of the excavating device downstream in the recess can be introduced, based on a processing direction of the device, and a excavation return device, which comprises at least one return element for excavation or, wherein the excavation traced the at least one return element downstream in the processing direction of Strangeinbringeinrichtung in the recess traceable is. Moreover, the invention relates to a method and a laying installation.

Description

The invention relates to a device and a method for laying at least one strand in a floor surface, especially a sports or leisure facility or an agricultural area. As a sports or leisure facility in particular a sports or playground is considered, a park, a beach or the like in the public or private sector. An agricultural area includes in the present case a forestry area with a.

The bottom surface is formed in particular by abradable material, in particular soil and possibly a substrate located thereon. The soil surface may have a vegetation, for example natural grass, which in the present case is understood to mean the natural growth of the soil surface and possibly existing substrate with grasses and / or herbs. Rolling lawns are also counted in the present case.

It is also conceivable use of the present invention in connection with otherwise used areas, such as house lawn areas or green areas of single or multi-family houses or industrial plants.

Moreover, the invention relates to a laying plant.

In the present case, a strand is considered to be a deformable body having a longitudinal extent. The body may be flaccid or, to a degree, stiff and elastically or inelastically deformable. In the present case, in particular, a pipeline, a hose line, an electric line with one or more cables, a glass fiber line or a band-shaped or strip-shaped body are counted to form one strand.

Strands in the form of pipelines are laid in practice, for example, in the construction of turf heaters. The conventional method involves high costs, because a large amount of soil must first be removed, after which the pipelines are laid, which are then covered with soil again. In addition to building costs, conventional turf heaters prove to be energetically inefficient because the piping is far from the surface and there is a significant temperature gradient between it and the piping. In addition, the heating leads to the drying out of the soil around the line, which undesirably reduces their thermal conductivity.

To remedy this disadvantage proposes the WO 2012/136710 A1 laying a lawn grid with pipelines integrated into it close to the surface, which considerably reduces the cost of piping and significantly increases the efficiency of the lawn heating system. That in the WO 2012/136710 A1 not only can be used to heat the lawn, but energetically reversed and used to provide an artificial ice surface. It proves itself in practice.

The object of the present invention is to provide a device and a method as well as a laying installation for laying at least one strand in a floor area in a simple and cost-effective manner.

This object is achieved by a device for laying preferably at least one strand in a bottom surface, preferably a sports or leisure facility or an agricultural area, the device comprises an excavating device for forming a dimensionally stable slot-shaped recess in the bottom surface and providing it occurring excavation a Stranginbringeinrichtung over which at least one strand of the excavating device downstream in the recess can be introduced, based on a processing direction of the device, and a Aushubrückführeinrichtung comprising at least one return element for excavation or forms, the excavation the at least one return element along in the processing direction of Strangeinbringeinrichtung downstream stored in the recess is traceable.

The device according to the invention makes it possible to install at least one strand in a structurally simple manner at low cost in the bottom surface. The device is moved in the intended use in a processing direction on the bottom surface. With the excavating a dimensionally stable slot-shaped recess is formed and provided excavation. In the present case, the term "dimensionally stable" is understood, in particular, to mean that side walls of the recess are dimensionally stable or substantially dimensionally stable after they have been lifted, so that the recess does not collapse and the cross section of the recess does not change during machining with the device. In particular, excavation is provided, and the formation of the recess is not exhausted in displacing the bottom surface transverse to the machining direction with consequent densification thereof (possibly associated with damage to the vegetation and soil structure) and an uneven surface at the edge of the recess.

Downstream in the machining direction is at least one strand on the Strangeinbringeinrichtung introduced into the recess. Preferably, the strand is deposited at the bottom of the recess. In the device according to the invention, the presence of the excavation return device with at least one return element, along which the excavation can be traced, proves to be particularly advantageous. Downstream in the processing direction of the Strangeinbringeinrichtung the recirculated excavation behind it can be introduced back into the recess. This makes it possible to cover the at least one strand and to fill the recess. In particular, it is not necessary to collect the excavated material, to supply it to a container, to temporarily store it and to fill it with the recess in a separate working step. The integration of the Aushubrückführeinrichtung with at least one return element in the device makes it possible to form the recess and to fill directly in the same step with the excavation, at the same time the intervening introduced at least one strand is covered. The recess can be closed by filling with the excavation form-fitting, whereby ideally a planar or substantially planar surface can be formed. For this purpose, a pressing device is preferably provided to compress the excavation in the recess and / or a smoothing device to smooth the surface, if necessary.

"Downstream in the processing direction or upstream" is present in particular as "based on the processing direction behind it or in front of the device" to be construed.

The device according to the invention also has the advantage that the at least one strand can be laid in a clearly predefinable depth in the bottom surface. Preferably, it is possible to adjust the depth by lowering or raising the device or the excavation as needed.

Preferably, the at least one strand is laid near the surface, wherein near the surface with regard to the respective use of the device may have different values. For example, when laying turf heaters, the depth of the recess may be about 5 cm to 30 cm, for example about 7 to 8 cm. If piping for a heat pump or the like laid, can be understood near the surface laying also a depth of the strand of about half a meter to 2 m. When laying planting bands for agricultural purposes, shallow-depth laying means, for example, depths of about 3 cm to 15 cm, for example 5 cm to 10 cm.

The near-surface laying of the at least one strand also makes it possible to build the device relatively compact and easy. The weight exerted by the device on the floor surface can be kept low. Impairment of the soil surface (such as deformation) and its growth can be minimized. This is particularly advantageous in sports or leisure facilities such as parks or agricultural land. For example, a sports facility, which is to be provided with a turf heating, affected only to a very small extent and significantly reduced the installation costs for the turf heating. The homogeneous game surface is retained.

The ability to form the recess in a single operation, to lay the at least one strand and to fill the recess with the excavation using the Aushubrückführeinrichtung even allows the use of a self-steering and self-propelled device with which the at least one strand autonomously without intervention of a Operator is relocated.

It is favorable if the excavation return device comprises a cover forming a receiving space in which the excavating device is arranged, and if the at least one return element is a wall or a wall section of the cover. The cover is, for example, hood-shaped or designed as a housing and may preferably cover the excavating device on the top, sides and / or front. The excavation can be carried along the wall or the wall section back into the recess.

In general, the at least one return element can be designed in the shape of a wall or plate, for example as a guide plate.

It is advantageous if the excavation return device has a return channel, in which the excavation is conveyed, and if the at least one return element is a wall or a wall portion of the return channel. Through the return channel through the excavation can be purposefully returned to the recess.

It is advantageous if the excavation return device comprises a cover forming a receiving space in which the excavating device is arranged, and if the return channel is connected to the cover or is formed by this and opens into the receiving space. The excavation can be transported from the receiving space in the return channel, which can open into the receiving space via an inlet opening. About an outlet opening of the excavation can escape from the return channel and enter the recess. The return channel is preferably integral with the cover educated. A wall portion of the cover may be a wall of the return channel.

"Return channel" does not require in the present case that a channel is provided whose longitudinal extent is greater than its dimensions transverse to the longitudinal direction. The extension in the longitudinal direction may be less than in the transverse direction.

Preferably, the excavating device is covered by the cover in a form-fitting manner or substantially in a form-fitting manner transversely to the machining direction. In the present case, this can be understood in particular to mean that the cover laterally covers the excavating device, wherein it projects laterally only to a slight extent over an edge of the recess formed by the excavating device. The excavating device should be movable in the receiving space, for example rotatable, a gap between the excavating device and the cover transversely to the machining direction is preferably to be kept as small as possible. The amount of excavation that undesirably reaches the edge of the recess without being carried into the recess can thereby be minimized.

The cover may have at least one opening, which is closed in particular by a wall or a wall portion of the cover. For maintenance, the opening can be released, for example, to clean the above-mentioned return channel in the event of a blockage. It is also conceivable that the excavating device can be accessed in order to maintain it.

The at least one strand may, for example, enter the receiving space from the side or from above through a wall of the cover, the strand being stored outside the cover, e.g. on a drum.

The excavating device preferably operates according to the overhead principle, wherein the excavation is preferably conveyed into the return channel counter to the processing direction over the excavating device. The above-mentioned cover comprises, for example, a guide surface in front of and / or above the excavating device, along which the excavation can be conveyed into the return channel.

In an advantageous embodiment of the device according to the invention, it is favorable if the excavating device is or comprises a rotor milling machine which can be driven in rotation about a rotational axis oriented transversely to the machining direction. The rotor cutter is associated with a drive, which may be part of the excavating device. The drive can be arranged outside or inside the above-mentioned receiving space. It is preferably provided that a rate of rotation of the rotor cutter is adjustable. The rotor cutter can be height adjustable to adjust the depth of the recess can.

It is expedient for the rotor miller to have a base body and milling elements projecting radially therefrom with respect to the axis of rotation, wherein the base body is preferably designed as a disc or drum with planar or substantially planar side walls parallel to the machining direction. Due to the planar or substantially planar side walls, the recess can be laterally stabilized dimensionally stable when the main body side walls of the recess contacted and, so to speak, "smooth".

The milled elements can be held directly or indirectly on the base body. For example, the milled elements are indirectly held on the main body via the milled-element carrier mentioned below.

It is advantageous if the milling elements are detachable from the base body, so that they can be replaced when worn without replacing the rotor milling machine as a whole.

Preferably, two or more cutting elements are held on a detachable from the base body milled element carrier, which handling and maintenance friendly multiple milled elements can be replaced at the same time. About the Fräselementträger the milled elements are held indirectly on the body.

Particularly preferably, the rotor cutter comprises two milling element carriers extending over half the circumference of the main body, which are held against each other and / or on the base body. Each cutter element carrier is half-ring shaped in this embodiment and carries a plurality of milling elements. The milled element carriers are preferably held to one another and / or to the base body via a quick-acting closure, which in particular can be operated manually and / or without tools. The cutting elements can be changed easily and quickly when worn.

For changing the cutting elements, it is particularly advantageous if the cover has the above-mentioned releasable opening. The opening is preferably dimensioned such that at least half of the rotor mill can be exposed. As a result, the cutting elements can be easily reached and replaced. For this purpose, the opening is preferably arranged above or in front of the rotor mill.

Overall, it is advantageous if excavating elements for generating the recess in the Floor surface of the excavating device are interchangeable, preferably manually and / or without tools.

The rotor cutter preferably has milling elements with an L-shaped cross-section, relative to a sectional plane perpendicular to the radial direction to the axis of rotation, wherein a leg of the L in a plane perpendicular to the axis of rotation.

For example, follow in the circumferential direction of the rotor mill around the axis of rotation of an L-shaped milling element and a mirror image of this designed milled element to each other. A respective leg is aligned perpendicular to the axis of rotation and preferably arranged laterally on the rotor mill. This favors providing a recess of clearly defined shape with as smooth a sidewall as possible.

The rotor mill may further include blade-shaped milled elements, whereby the excavation can be reliably removed from the recess.

Conveniently, in the circumferential direction of the rotor mill, the L-shaped cutting elements and the blade-shaped cutting elements alternate. In an advantageous embodiment, a blade-shaped milling element follows two L-shaped, mirror-symmetrically formed milling elements, followed again by two L-shaped milling elements, etc.

It can be provided to set an operating speed of the excavating device. Depending on the nature of the application and, for example, the nature of the floor surface, the working speed, for example the speed of the rotor mill mentioned above, can be adjusted as needed. As a result, an optimal work result can be achieved. In the case of a powered device, preferably the speed of the device relative to the bottom surface may be adjusted.

The device can, for example as part of the excavating device, have supporting elements for supporting side walls of the recess. In particular, in softer and deeper soils the dimensionally stable configuration of the recess is ensured. The support elements are, for example, plate-shaped designed to smooth the side walls of the recess.

The support elements preferably have a sharp edge in the machining direction at the front. The support elements are for example held on the cover mentioned above and positioned downstream in the machining direction excavation elements of the excavating device, but upstream in the processing direction of Strangeinbringeinrichtung.

It is advantageous if the device comprises a pressing device arranged downstream of the at least one return element in the machining direction, with at least one pressing element for applying excavation to the recess with a pressing force. As a result, the recess can close formally. Unevenness of the surface can thereby be minimized so that the surface is preferably planar or substantially planar. This proves to be particularly advantageous for floor surfaces that should be as level as possible for functional or aesthetic reasons, especially in sports or parks.

Preferably, the dimension of the at least one pressing element transverse to the machining direction is greater than the dimension of the recess. The surface can thereby also be slightly compressed at the edge of the recess. Should the edge be "frayed", for example because of the excavating device, this can provide a surface of advantageous nature.

The at least one pressing element is preferably a roller or a blade or comprises such.

A bottom surface facing side of the at least one pressing element may be concave shaped to avoid excessive compression of the excavation. This is advantageous, for example, to promote the penetration of water and air into the excavation when seed or fertilizer (this will be discussed below) is introduced into the recess together with the excavation.

A contact plane of the device is preferably also defined by the at least one pressing element, which touch level coincides with the surface of the bottom surface. As a result, no height of the floor surface is removed when the at least one strand is laid. The height of the bottom surface remains rather preserved.

It is advantageous if the pressing device comprises an adjusting device for adjusting the pressing force. For example, the adjusting device comprises a biasing element, which acts on the at least one pressing element with a directed to the bottom surface biasing force.

Alternatively or additionally, it is advantageous if the pressing device has an adjusting device for setting a distance of the at least comprises a pressing element relative to the bottom surface. Depending on demand, it is also possible to adjust the contact pressure.

The adjusting device is preferably a vibrating device, with which the at least one pressing element is vibratable in the direction of the bottom surface and away from it. The bottom surface can be compacted or vibrated or statically compressed in the region of the recess by vibration of the pressure element, for example.

It is advantageous if the device, preferably downstream in the processing direction of the pressing device, has a smoothing or leveling device for smoothing or leveling the bottom surface. The smoothing or leveling device comprises, for example, a rake, a brush or a lip or is designed as such. By means of the smoothing or leveling device, it is possible if necessary to distribute excavation on the floor surface projecting beyond the recess, thereby smoothing or leveling the same. For example, the smoothing or leveling device can be pivoted or vibrated transversely to the machining direction in order to distribute excavation on both sides of an edge of the recess.

The strand introducing device preferably comprises at least one storage device for at least one strand, for example a drum, on which the at least one strand can be stored. For example, the at least one strand is wound up on the drum. In the presence of more than one strand, each strand may be associated with a drum. It is also conceivable that two or more strands are wound on a common drum.

Advantageously, the strand insertion device comprises at least one guide element which is downstream in the machining direction of the excavating device and preferably upstream of the at least one return element, in particular an outlet opening of the return channel and over which the at least one strand can be guided into the recess. The at least one guide element may be a sliding or a rolling guide, along which slides the at least one strand or on which this rolls when it is laid in the recess. It is also conceivable a guide element in the form of a tube through which the strand is guided, or in the form of a groove in which the strand extends. Preferably, the at least one guide element engages in the recess, so that the at least one strand can be guided in this unerringly.

As already indicated, an advantageous embodiment of the device can be designed for the simultaneous laying of two or more strands. The strand introducing device may comprise two or more strands. The two or more strands may be associated with a respective drum and a respective guide element.

It proves to be advantageous if at least one strand is a pipe or hose line, for example a pipe or hose for carrying out a heat transfer medium, for isolation or irrigation and / or drainage and / or aerating and / or fertilizing and / or seeding. The device can be used for example for laying a pipe or hose for a lawn heating or for forming a artificial ice surface. For this purpose, a heat transfer medium can be passed through the pipe or hose, for example water, a water-alcohol mixture, CO ₂ or ammonia. A pipe or hose for irrigation and / or drainage and / or aerating and / or fertilizing and / or sowing can be used, for example, when using the device on an agricultural area. The pipe or hose may have openings through which water can escape and / or enter, air can escape, liquid fertilizer can escape or seeds can escape. Drainage can be used, for example, for a drainage of a golf course or a soccer field. A pipe or hose for carrying out a heat transfer medium is also suitable, for example, for laying a piping for heat or cold pumps, in house lawns or green areas of single or multi-family houses or industrial plants.

Alternatively or additionally, it can be provided that at least one strand is a planting band, an electric line or a glass fiber line. The planting band may preferably have planting material in a preferably regular arrangement, ie seed, which can thereby be introduced into the soil surface at a defined distance. In particular, with high-quality tree and shrub seed, a targeted and uniform germination can be ensured. It is also suitable for use in vegetable growing, for example in annual or perennial crops or crops. Bald spots can be minimized and the plants can be spaced from each other so as not to interfere with each other. In particular, by only slightly compressing the excavation above the laid planting band can also be ensured that the seed can be sufficiently irrigated and aerated to promote the growth. The growth direction upwards through the excavation can also be specified. By dimensionally stable formation of the recess without excessive compression of the surrounding soil is further ensured that the seed Can take root. Overall, the growth process can be positively influenced by utilizing the device according to the invention, whereby seed can grow and mature evenly. Ideally, the crop can be harvested at the same time and the yield-to-cost ratio maximized.

Also for laying an electric line or a glass fiber cable, the device is suitable. For example, an electric cable is laid for an electric turf heater, for energy or information transmission. For the latter purpose, a fiber optic cable can be laid.

Conveniently, two or more strands can be provided, which can be introduced one above the other or laterally next to one another into the recess.

The strands can be different. For example, a planting tape and a pipe or hose for irrigation and / or ventilation and / or fertilization is provided. The planting band can be positioned above or below the pipe or hose, for example. Alternatively, a pipe or hose for carrying out a heat transfer medium may be provided and an insulating tape preferably below the same. The insulation tape has, for example, a U-shaped cross section and can be applied to the pipe or hose line. The heat transfer into the areas below the recess can be minimized thereby and maximize the efficiency of the system (for example, for turf heaters, to form a heat pump or to provide an artificial ice surface).

The device preferably has an additional introduction device with a storage container for seed and / or fertilizer material, which can be introduced into the recess via an outlet opening of the storage container downstream of the at least one strand in the machining direction. For example, seed and / or fertilizer material exits via a discharge line or a channel from the storage container and can be introduced into the recess together with or in the machining direction after the excavation. Lawn seed, for example, is used as seed when the device is used in sports facilities, leisure facilities such as parks or lawns. Fertilizer is preferably introduced in addition. If the device is used on agricultural land, preferably fertilizer is introduced.

The seed and / or fertilizer is preferably in the machining direction between the above-mentioned return channel, d. H. an outlet opening thereof, and the at least one pressing element can be introduced into the recess.

Conveniently, the amount of introduced seed and / or fertilizer is adjustable.

The device may further comprise an irrigation device for irrigating the seed and / or fertilizer.

The device may have a traction drive to be moved on the floor surface.

Alternatively or additionally, it may be provided that the device has a coupling device for connecting to a towing vehicle. About the coupling device, the device is preferably stored floating on towing vehicle, for example via a three-point bearing.

In order to minimize footprint degradation by the weight of the device, it is beneficial if the device includes a grassed chassis (e.g., with balloon tires or wide tires), rubber tracks, rubber crawlers, and / or a guide roller.

The present invention also relates to a laying installation for laying preferably at least one strand near the surface in a floor area.

This object mentioned above is achieved by a laying installation having two or more laterally juxtaposed devices of the type described above.

The advantages already mentioned in connection with the explanation of the device according to the invention, or advantageous embodiments thereof, can likewise be achieved in the laying installation. In this regard, reference may be made to the above statements. By the two or more laterally adjacent devices arranged side by side strands can be laid. For example, a distance of the devices when laying pipe or hose lines for turf heaters or Kunsteisbildung about 5 cm to 15 cm, for example, about 15 cm. When laying pipe or hose lines for heat pumps, the distance may be, for example 20 cm to 150 cm, for example, about 80 cm. When laying planting bands in agricultural land very different distances can be provided depending on the type of seed.

It proves to be advantageous if the laying installation has a distance changing device with which the distance between at least two devices can be changed from one another to change the distance of the lines which can be laid with the devices in each case relative to one another. The installation system proves to be particularly versatile because, depending on requirements, an advantageous distance of the strands can be specified.

The laying installation may have a drive device for jointly driving the excavating devices of the devices. Alternatively, each excavating device can be assigned its own drive.

The devices are preferably identical in order to achieve a structurally simple design of the installation system.

In the machining direction, the laterally juxtaposed devices can be arranged offset.

The object mentioned above is achieved by a method for laying preferably at least one strand in a floor surface, preferably a sports or leisure facility or an agricultural area, preferably using a device of the type mentioned above. With the excavating a form-solid slot-shaped recess is formed in the bottom surface and thereby occurring excavation provided over the Strangeinbringeinrichtung is based on a processing direction of the device, the excavating at least one strand introduced into the recess, and the excavation is the at least one return element of Excavation return leading along downstream in the processing direction of Strangeinbringeinrichtung recirculated into the recess.

As already in connection with the explanation of the device according to the invention, as well as advantageous embodiments thereof, achievable advantages can also be achieved with the method according to the invention. In this regard, reference is made to the above explanations. Of course, all device features that are optionally available, procedurally also implemented and used to define advantageous embodiments of the method.

The following description of advantageous embodiments of the invention is used in conjunction with the drawings for a more detailed explanation of the invention. Show it:

1 a schematic side view (partially broken away) of a first preferred embodiment of a device according to the invention;

2 : a simplified plan view of the device 1 ;

3 a simplified sectional view taken along the line 3-3 in 1 ;

4 a simplified sectional view taken along the line 4-4 in 1 ;

5 a simplified sectional view taken along the line 5-5 in 1 ;

6 a simplified sectional view taken along the line 6-6 in 1 ;

7 : A perspective view of an excavating device of the device 1 ;

8th a schematic side view (partially broken away) of a second preferred embodiment of a device according to the invention;

9 a simplified schematic plan view of an installation system according to the invention, comprising a plurality of devices according to the invention;

10 a schematic representation (partially broken away) of a third preferred embodiment of a device according to the invention;

11 a simplified sectional view taken along the line 11-11 in 9 and

12 : a representation similar 11 , where is 12 in the type of strands laid in a floor surface of 11 different.

1 shows a schematic side view with the reference numeral 10 occupied advantageous embodiment of a device according to the invention for laying a strand 12 , The device 10 includes a support device 14 , The carrying device 14 provides a basic structure of the device 10 ready to hold their components. For example, the carrying device 14 formed by a frame-shaped structure. In particular, on the support device 14 a suspension 16 , an excavation facility 18 , a stringeninbringeinrichtung 20 , an excavation return device 22 , an additional insertion device 24 and a pressing device 26 held.

At the carrying device 14 is also a coupling device 28 arranged over which the device 10 can be coupled to a towing vehicle, not shown in the drawing. Preferably, the device is 10 via the coupling device 28 stored floating on towing vehicle. It is advantageous if the chassis 16 having a flat resting on the bottom surface guide roller. From the towing vehicle is the device 10 in the intended use along a machining direction 30 over a floor area 32 that moves a surface 34 having.

Position and direction indications such as "top", "bottom", "front", "rear" or the like are for a proper use of the device 10 on the floor surface 32 based and on the machining direction 30 ,

Alternatively or in addition to pulling the device 10 can be provided that this is a traction drive for the chassis 16 having.

The device 10 serves for laying the strand near the surface 12 , in this case a flexible pipe 36 , for example made of plastic. The pipeline 36 is used in particular for passing a heat transfer medium, for example water, a water-alcohol mixture, CO ₂ or ammonia. Here comes the device 10 presently used to form a casing for a turf heater. Accordingly, it is at the bottom surface 32 in particular, a sports facility, for example, to be provided with the turf heating football field. Through the pipeline 36 passing through heat transfer medium is used to heat the bottom surface 32 used.

Other uses of the device will be discussed below.

The excavation facility 18 serves to form a dimensionally stable slot-shaped recess 38 in the floor area 32 ,

The excavation facility 18 in the present case comprises a rotor mill 40 that a drive 42 is assigned, which is also part of the excavation 18 can be. The rotor cutter 40 is from the drive 42 around a cross-machine direction 30 aligned axis of rotation 44 rotatable drivable. The rotor cutter 40 includes a main body 46 , which is configured here disk-shaped. The main body 46 has side walls 48 on parallel to the machining direction 30 , which are preferably configured planar or substantially planar.

Next includes the rotor cutter 40 cutting elements 50 that from the main body 46 protrude radially, based on the axis of rotation 44 , The cutting elements 50 include shovel-shaped cutting elements 51 and in cross-section L-shaped cutting elements 52 , relative to a cross-sectional plane perpendicular to the radial direction of the axis of rotation 44 , The L-shaped cutting elements 52 are like that on the main body 46 arranged that a leg of the L is a plane perpendicular to the axis of rotation 44 Are defined. In particular, the leg of the L in extension of the respective side wall 48 educated. The L-shaped cutting elements 52 comprise two groups formed by milling elements 52 that have the shape of an L in the direction radially inward and milling elements 52 that have the shape of an L in the direction radially outward. In the circumferential direction of the rotor cutter 40 followed by a milling element 52 the first group on a cutting element 52 the second group, this is followed by a shovel-shaped milling element 51 on, and the arrangement is repeated.

At the rotor mill 40 are the cutting elements 50 indirectly on the body 46 held and not directly attached to this. The rotor cutter 40 includes for holding the cutting elements 50 Fräselementträger 160 on which the cutting elements 50 are fixed. The milling element carriers 160 are at the base body 46 held and surround this in the circumferential direction. In the present case are two part-annular milling element carrier 160 provided, each extending over half the circumference of the body 46 extend. Accordingly, both milled element carriers surround 160 together the main body 46 Completely.

Each cutter element carrier 160 can be separate from the main body 46 be solved and exchanged. The cutting elements 50 can be replaced quickly and user-friendly when worn. Preferably, the milling element carriers 160 via schematically illustrated closure devices 162 at the base body 46 held. They can also be held together. The locking devices 162 are preferred quick fasteners for manual and / or tool-free release and connecting the milling element carrier 160 ,

With the rotor cutter 40 can the recess 38 slotted in the bottom surface 32 are formed, wherein the recess 42 is dimensionally stable. side walls 54 the recess 38 are so dimensionally stable that the shape of the recess 38 during processing by the device 10 essentially preserved.

The depth of the recess 38 is determined by the penetration depth of the rotor cutter 40 in the floor area 32 , The rotor cutter 40 or the excavating device 18 Overall, height adjustable on the carrying device 14 be held. In addition or alternatively, conceivable, the rotor cutter 40 by a height adjustment of the chassis 16 lower or raise. An adjusting device for height adjustment is by a double arrow 56 indicated.

The excavation facility 18 works on the overhead principle. The direction of rotation of the rotor mill 40 around the axis of rotation 44 is such that the cutting elements 50 the floor area 32 in the machining direction 30 to edit. The resulting excavation 58 Soil material in the above-mentioned application example is from the rotor miller 40 across them against the machining direction 30 transported to the rear.

The excavation return device 22 includes one on the support device 14 held cover 60 , The cover 60 defines a recording room 62 in which the rotor cutter 40 is arranged. Present is the drive 42 for those outside the recording room 62 arranged. The drive 42 However, it could also be in the recording room 62 are located. The cover 60 has the shape of a hood, the rotor mill 40 with a top section 64 covered. A front section 66 covers the rotor cutter 40 in the machining direction 30 off the front. Lateral sections 68 form side walls of the cover 60 which the rotor miller 40 transverse to the machining direction 30 cover.

The cover 60 is sized so that the rotor cutter 40 transverse to the machining direction 30 essentially positively in the receiving space 62 is arranged. In the recording room 62 can the rotor cutter 40 however, for forming the recess 38 rotate. However, there is a respective gap between the rotor mill 40 and the side sections 68 narrow. This has the advantage that the excavation 48 almost completely over the rotor mill 40 is transported to the rear. The share of the excavation 58 that on the edge 70 the recess 38 on the surface 34 remains is very low.

When carrying the excavation 58 behind the cover serves 60 to the leadership. The excavation 58 is over the front section 66 and the top section 64 led backwards. In addition, one of the front section 66 backward rising threshold 72 be provided, for example, in the space between the rotor cutter and the lateral sections 68 ,

The excavation return device 22 includes a return channel 74 with at least one return element having an inlet opening 76 and an exit opening 78 for excavation 58 having. The return channel 74 flows through the inlet 76 in the recording room 62 ,

In the present case, the return channel 74 and the excavation return device 22 total of the cover 60 educated. In particular, it can be provided that the return channel 74 integral with the cover 60 is formed.

The return channel 74 includes a top-side section 80 in extension of the above section 64 and a section below 82 and also lateral sections 84 for limiting transversely to the machining direction 30 , The sections 80 . 82 and 84 , Wall sections of the cover 60 , are walls of the return channel 74 and form a respective, already mentioned return element of the excavation return device 22 for returning the excavation 58 into the recess 38 ,

In a different embodiment of the device 10 could also be provided that the bottom section 82 deleted and accordingly a return channel is present, which is open on one side and of the sections 80 and 84 is limited.

The return channel 74 is arcuately curved in the present case, the curvature counter to the machining direction 30 runs from top to bottom. The entrance opening 76 is arranged so high that the excavation 58 from the rotor mill 40 in the return channel 74 is encouraged. The excavation 58 is via the return channel 74 at the return elements along in the recess 38 transported to their backfilling, which will be discussed below. The outlet opening 78 is preferably just above the surface 34 arranged, ie just above the touch level of the device 10 with the surface 34 ,

The Strangeinbringeinrichtung 20 includes one strand 12 assigned to the carrying device 14 held stocking device in the form of a drum 86 for example, one parallel to the axis of rotation 44 aligned axis of rotation 88 is rotatable. 2 shows the drum opposite 1 for better visibility in front of the cover 60 ,

It could also be provided that the drum has an axis oriented in a different direction. For example, the axis of the drum could be oriented in a height direction, in particular in the vertical direction. Possible different orientations of the drum 86 are in the 3 . 8th and 9 shown with dashed lines. Such orientations of the drum 86 For example, they prove to be advantageous if more than one strand is laid with the device. This can be several drums 86 be positioned next to each other or in succession. The laying of multiple strands with the device will be described below with reference to FIGS 10 to 12 still received.

The strand 12 , in this case the pipeline 36 , is on the drum 86 wound. The unwound section of the pipeline 36 occurs over an opening in the cover 60 , for example, above or laterally, into the reception room 62 one. Next is the strand 12 via a guide element 92 the stringeninbringeinrichtung 20 led, behind the rotor mill 40 is arranged and below the return channel 74 , The guide element 92 is designed here as a sliding guide, which in the recess 38 intervenes. The pipeline 36 becomes the guide element 92 in the machine direction behind the cutting elements 50 fed. A certain distance between the cutting elements 50 and the guide element 92 is therefore an advantage. The pipeline 36 lies in the machining direction 30 at the front of the guide element 92 and is below this in the recess 38 introduced. The pipeline 36 can on a bottom wall 94 the recess 38 rest. The device is moving 10 in the machining direction 30 , the pipeline rolls 36 from the drum 86 off and will be in the recess 38 laid.

The guide element 92 is for example on the carrying device 14 or the cover 60 held.

In the device 10 is, based on the machining direction 30 , about the excavation facility 18 the dimensionally stable slot-shaped recess 38 trainable and the excavation 58 mountable. In the machining direction 30 The pipeline can be downstream 36 about the Strangeinbringeinrichtung 20 into the recess 38 be introduced. The excavation 58 can over the excavation return device 22 to cover the pipeline 36 and filling the recess 38 in the machining direction 30 be returned to this downstream. The outlet opening 78 is behind the guide element 92 arranged.

Advantageously, in the cover 60 at least one opening formed, for example, by a removable wall portion of the cover 60 is covered. When the cover is open, the receiving space 62 be released and intervened in these. Preferably, the opening is on the top or front of the cover 60 educated. For example, the sections 64 and 66 completely or partially removable.

It is particularly favorable if at least half of the rotor mill 40 with the cover open 60 can be uncovered by replacing a cutter holder 160 Easy to handle and maintain. Milling elements 50 exchange.

It is also advantageous if through the open cover into the return channel 74 can be intervened. For example, the return channel can be 74 thereby clean, for example in the case of obstruction by excavation 58 ,

Through the integration of the excavation return device 22 into the device 10 For example, it is possible to carry out a method according to the invention which comprises providing the recess 38 , laying the pipeline 36 and filling the recess 38 Time-saving and cost-effective in a single operation.

This eliminates the device 10 the need to excavate 58 to store separately and in a subsequent, time-consuming step in the recess 38 contribute. Also a picking up excavation 58 from the surface 34 can be omitted because of the excavation 58 targeted into the recess 38 is returned. A container for storing the excavation can be saved.

In particular, it is conceivable that the device 10 self-propelled and self-steering and an autonomous laying of the pipeline 36 allows.

It proves to be advantageous that the surface 34 after laying the pipeline 36 is planar or substantially planar. Unevenness of the floor surface 32 can be avoided, post-processing can be omitted. Due to the dimensionally stable formation of the recess 38 will be a compacting of the floor area 32 on the side walls 54 and on the edge 70 largely avoided. Growth of the soil surface 32 will not be affected.

The device 10 further comprises the additional insertion device 24 putting one on the carrying device 14 kept reservoir 96 has (in 2 Not shown). The reservoir opens via an outlet opening 98 into a canal 100 , whose opposite end in the machining direction 30 the outlet opening 78 of the return channel 74 is downstream. The end of the channel 100 is near the surface 34 positioned.

In the storage container 96 is in the present application example seed and preferably also fertilizer 102 recorded, especially lawn seeds. The seed and fertilizer 102 can be filled in the recess 38 be introduced. It is also conceivable that the seed and fertilizer 102 in the return channel 74 with the excavation 58 is mixed. For this purpose, the channel 100 in the return channel 74 lead.

The amount of seed and fertilizer 102 can be adjusted via a setting device not shown in the drawing.

The introduction of the seed and fertilizer 102 allows to lay the pipe 36 at the same time to renew vegetation by digging the recess 38 Will get removed.

The already mentioned pressing device 26 includes a pressing element 104 , The pressing element 104 is in the machining direction 30 the exit end of the channel 100 arranged downstream. In the present case is the pressure element 104 designed as a role 106 , which is perpendicular to the machine direction 30 aligned axis of rotation 108 is rotatable.

With the role 106 can the excavation 58 and, if present, the seed and fertilizer 102 something compacted. The role 106 impinges on the surface 34 for this purpose with a pressing force down. The recess 38 is thereby closed formally. Preferably, the excavation 58 however, only to the extent that penetration of water and air is still possible, hence the seed 102 can grow well. The role 106 extends transversely to the machining direction 30 also over the recess 38 , This will also be the edge 70 acted upon by the pressing force. Any "fraying" of the edge 70 can be resolved.

Preferably, the role 106 bottom side, the touch level of the device 10 define. The surface 34 characterized by before and after processing with the device 10 the same height.

It can also be provided that the pressing device 26 an adjusting device shown schematically in the drawing 110 having. About the adjustment 110 can, symbolized by a double arrow 112 , the role 106 be raised or lowered. The the surface 34 acting pressing force can be adjusted. The adjustment device 110 may in particular be a vibrating device over which the role 106 towards the bottom surface 32 and vibrate away from it. This allows the compaction of the excavation 58 similar to using a vibrator or pounder.

The device 10 further comprises a smoothing device 170 , The smoothening device 170 is on the carrying device 14 held and in machining direction 30 the pressing device 26 arranged downstream. In the present case, the smoothing device comprises 170 a rake 172 , Alternatively, for example, a brush or a rubber lip could be present.

The rake 172 extends transversely to the machining direction 30 over the recess 38 ( 2 ). Unless after pressing the excavation 58 with the role 106 yourself on the surface 34 another elevation of excavation is located, this can be done by means of the rake 172 be removed ( 6 ). "Excess" excavation is preferably transverse to the recess 38 distributed on the surface. For this purpose, the smoothing device 170 have a vibrating device or a pivoting device, with the rake 172 transverse to the recess 38 can be moved.

Excess excavation 58 may occur, for example, if more than one strand 12 is relocated, as set out below with reference to the 10 to 12 will be explained.

It can also be provided that the device 10 only with smoothing device 170 , but without pressing device 26 Is provided.

The device 10 So far, the example of laying the pipeline has been used 36 for forming a piping system of a turf heater described. A heat transfer medium can pass through the pipeline 36 flow and the floor area 32 Warm up. For such an application, it proves to be advantageous if the depth of the recess 38 is about 5 cm to 30 cm, preferably 7 cm to 8 cm. Neighboring recesses 38 For example, have a distance of about 5 cm to 25 cm. The width of the recess is for example 2 cm to 6 cm and in a pipeline 36 with a diameter of 25 mm, preferably about 3 cm.

In a similar way, the pipeline 36 For example, in recreational facilities such as parks, are used to form an artificial ice surface, as in the WO 2012/136710 A1 is described. By passing a refrigerant through the pipeline 36 (via the heat transfer medium is the bottom surface 32 Deprived of energy) can reduce the floor area 32 be cooled. One on the surface 34 Applied water layer can freeze and thereby a artificial ice layer can be generated.

Of course, the device could 10 also be used for laying an electric cable for electric lawn heating.

In a different application, it may be in the pipeline 36 For example, to act a pipeline of a heat pump system, in the bottom surface 32 , such as a grassy area of a single or multiple dwelling, is relocated. For example, the pipeline includes 36 in this application, a pipe made of copper or aluminum on the inside and a plastic coating on the outside. In such an application, the depth of the recess 38 for example, about 100 cm. Neighboring recesses 38 For example, have a distance of about 20 cm to 150 cm.

Regardless of the type of application can be provided that the strand each stranded 12 has end connection elements, whereby different strands 12 connected to each other or can be connected to a common feed or discharge line. The connecting elements can be designed to form screw or plug connections.

8th shows one with the reference numeral 120 occupied second advantageous embodiment of a device according to the invention. For the same or equivalent features and components of the devices 10 and 120 are used, also below, identical reference numerals. The in connection with the explanation of the device 10 achievable benefits can be achieved with the device 120 and the devices mentioned below also be achieved, so that reference can be made in this regard to the preceding embodiments to avoid repetition.

The device 120 is different from the device 10 by the design of the pressure element 104 , In the device 104 is instead of the role 106 a skid 122 intended. About the skid 122 can the surface 34 in the area of the excavation 58 and the edge 70 be acted upon by the pressing force.

9 shows a schematic plan view of an advantageous embodiment of a laying installation according to the invention, denoted by the reference numeral 130 is occupied. The installation plant 130 comprises a plurality of devices according to the invention, here is an example of the device 10 shown. Transverse to the machining direction 30 is a plurality of devices 10 arranged side by side. The devices 10 can be a common carrying device 14 exhibit. Alternatively, the respective carrying devices 14 via a common holding device 132 be connected to each other.

The distance of the devices 10 from each other determines the distance between the recesses 38 and the distance of the strands laid with these 12 , Preferably, the spacing of adjacent devices 10 to be changed in what 9 by respective double arrows 134 is symbolized. The change in distance can be done manually or by using a respective distance changing device 136 , in the 9 is also shown schematically.

By the possibility of changing the distance of the device 10 proves the installation system 130 as very versatile. According to need, the distance of the strands can be 12 thereby set to an optimum value.

10 shows one with the reference numeral 140 occupied third advantageous embodiment of a device according to the invention. Notwithstanding the devices 10 and 120 is the device 140 for simultaneous laying of two strands 12 educated. For this purpose, the strand insertion device comprises 20 two drums 86 , with each strand 12 a drum 86 assigned. Alternatively it could be provided that both strands 12 on a common drum 86 are wound up.

Both strands 12 be from a common guide element 92 when laying led. Alternatively it could be provided that the Strangeinbringeinrichtung 20 two guide elements 92 having, each strand 12 a guide element 92 assigned.

The device 140 is used especially for agricultural land. The floor area 32 can be a field accordingly. At a first strand 12 this is a planting tape 142 , In the planting tape 142 Seeds are picked up at preferably regular intervals (not shown). At the next strand 12 it is in particular a flexible hose line 144 for watering and / or aerating and / or fertilizing the seed. The hose line 144 may be provided with openings for this purpose. Water, air or liquid fertilizer flowing through the hose line 144 may emerge from this in order to preferably water the seeds selectively and continuously, aerate and / or fertilize.

The strands 12 with the appropriate drums 86 are so on the device 140 arranged that they simultaneously with the device 140 can be moved. This is the hose 144 below the planting tape 142 into the recess 38 brought in. The hose line 144 contacted the bottom wall 94 , and the planting tape 142 comes on the hose line 144 for lying. The arrangement of the strands 12 could also be the other way around, ie the planting tape 142 could be under the hose line 144 be moved.

As with the device 10 becomes the recess 38 after the introduction of the strands 12 in the same step immediately with the excavation 58 filled in ( 11 ).

In the device 140 comes in place of the seed and fertilizer 102 in the storage container fertilizer 146 for use. The fertilizer 146 is over the channel 100 in the excavation 58 introduced and used in addition to the fertilization of the seed.

The application of the device 140 for laying the planting tape 142 proves to be advantageous because of the dimensionally stable configuration of the recess 38 a defined growth direction of the seed can be ensured. This is due to the lower compression of the excavation 38 in relation to which the recess 38 surrounding soil. In addition, the seed can be permanently irrigated, aerated and / or fertilized. This also promotes a uniform growth of the seed. The resulting crop can ideally be harvested at the same time. The yield-to-yield ratio for the harvest has been optimized. Especially in dry zones, since the superficial evaporation of water is eliminated, a lot of water can be saved.

Also with the device 140 according to 10 can instead of the role 106 a skid 122 be used.

At the installation plant 130 may instead of the device shown by way of example 10 of course also a majority of devices 120 or devices 140 be used.

The depth of the recess 38 For example, for plantings is about 5 cm to 10 cm, the distance between adjacent strands may vary depending on the type of seed.

Based on the device 140 was exemplified that more than just a strand 12 can be installed simultaneously with the device according to the invention cost and time saving. This can also be done in the other application areas mentioned above. This is exemplified 12 directed. 12 shows in one of the 5 appropriate way, like a strand 12 , in this case the pipeline 36 that with the device 10 has been transferred, together with at least one other strand 12 has been moved. The device 10 may accordingly for laying at least one further strand 12 be educated.

In the application according to 12 is in addition to the pipeline 36 a strand 12 laid in the form of an insulating material, for example an insulating tape 152 , The isolation band 152 is for example an insulation profile with one on the pipeline 36 adjacent U-shaped cross-section. Preferably, the insulating tape 152 below the pipeline 36 laid. A heat loss from the pipeline 36 down can be minimized and the efficiency of the lawn heating can be increased energetically optimal.

12 also indicates with dashed lines another strand 12 at. For example, with the device 10 three strands 12 be laid, such as the pipeline 36 and the isolation tape 152 and in addition another strand, in particular a hose for irrigation. When heating the pipeline 36 with the heat transfer medium it could happen that the bottom surface 32 dries up, for example on the sidewalls 54 , This effect can occur especially in winter due to lack of surface irrigation. If, in addition, a hose line is provided for irrigation, which hose line has outlet openings for water, drying of the floor area can be achieved 32 largely avoided. The growth of the soil surface 32 It can also be protected from drying out.

In this application example, it is advantageous if the insulating tape 152 at the bottom, the pipeline 36 above the insulation tape 152 and the hose line for irrigation above the pipeline 36 ,

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2012/136710 A1 [0007, 0007, 0134]

Claims (30)

Device for laying preferably at least one strand near the surface ( 12 ) in a floor area ( 32 ), especially a sports or leisure facility or an agricultural area, comprising an excavation facility ( 18 ) for forming a dimensionally stable slot-shaped recess ( 38 ) in the bottom surface ( 32 ) and provide thereby occurring excavation ( 58 ), a strand introducing device ( 20 ), over which at least one strand ( 12 ) of the excavating device ( 18 ) downstream into the recess ( 38 ) can be introduced, based on a machining direction ( 30 ) of the device ( 10 ; 120 ; 140 ), and an excavation return device ( 22 ), which at least one feedback element ( 80 . 82 . 84 ) for excavation ( 58 ), the excavation ( 58 ) the at least one return element ( 80 . 82 . 84 ) along in the machining direction ( 30 ) of the strand introducing device ( 20 ) downstream into the recess ( 38 ) is traceable. Apparatus according to claim 1, characterized in that the excavation return device ( 22 ) one a recording room ( 62 ) forming cover ( 60 ), in which the excavating device ( 18 ) is arranged, and that the at least one feedback element ( 80 . 82 ) a wall or a wall section ( 80 . 82 . 84 ) of the cover ( 60 ). Device according to one of the preceding claims, characterized in that the excavation return device ( 22 ) a return channel ( 74 ) into which the excavation ( 58 ) is conveyable, and that the at least one feedback element ( 80 . 82 ) a wall ( 80 . 82 . 84 ) or a wall section of the return channel ( 74 ). Apparatus according to claim 3, characterized in that the excavation return device ( 22 ) one a recording room ( 62 ) forming cover ( 60 ), in which the excavating device ( 18 ), and that the return channel ( 74 ) to the cover ( 60 ) is connected or formed by this and in the recording room ( 62 ) opens. Apparatus according to claim 2 or 4, characterized in that the excavating device ( 18 ) transverse to the machining direction ( 30 ) positively or substantially positively from the cover ( 60 ) is covered. Device according to one of the preceding claims, characterized in that the excavating device ( 18 ) operates on the overhead principle, with the excavation ( 58 ) against the machining direction ( 30 ) via the excavation device ( 18 ) is conveyed away. Device according to one of the preceding claims, characterized in that the excavating device ( 18 ) one around a cross-machine direction ( 30 ) oriented axis of rotation ( 44 ) Rotary drivable rotor milling machine ( 40 ) is or comprises. Apparatus according to claim 7, characterized in that the rotor mill ( 40 ) a basic body ( 46 ) and of this, relative to the axis of rotation ( 44 ), radially projecting cutting elements ( 50 ), wherein the basic body ( 46 ) is preferably designed disc or drum-shaped with planar or substantially planar side walls ( 48 ) parallel to the machining direction ( 30 ). Apparatus according to claim 8, characterized in that the milled elements ( 52 ) from the main body ( 46 ), in particular that two or more cutting elements ( 52 ) on at least one of the main body ( 46 ) releasable milled cement carriers ( 160 ), it is preferred that two each extend over half the circumference of the basic body ( 46 ) extending milled cement carriers ( 160 ), which are attached to one another and / or to the basic body ( 46 ) are held. Device according to one of claims 7 to 9, characterized in that the rotor mill ( 40 ) Milling elements ( 52 ) having an L-shaped cross-section, relative to a sectional plane perpendicular to the radial direction to the axis of rotation ( 44 ), wherein a leg of the L in a plane perpendicular to the axis of rotation ( 44 ) and / or blade-shaped cutting elements ( 51 ), wherein preferably in the circumferential direction of the rotor mill ( 40 ) the L-shaped milling elements ( 52 ) and the blade-shaped cutting elements ( 51 ) alternate each other. Device according to one of the preceding claims, characterized in that the device ( 10 ; 120 ; 140 ) a the at least one feedback element ( 80 . 82 . 84 ) in the machining direction ( 30 ) downstream pressing device ( 26 ) with at least one pressing element ( 104 ) comprises for applying into the recess ( 38 ) filled excavation ( 58 ) with a pressing force, wherein the dimension of the at least one pressing element ( 104 ) transverse to the machining direction ( 30 ) is preferably larger than the dimension of the recess ( 38 ). Apparatus according to claim 11, characterized in that the at least one pressure element ( 104 ) a role ( 106 ) or a skid ( 122 ) is or comprises. Apparatus according to claim 11 or 12, characterized in that the pressing device ( 26 ) an adjustment device ( 110 ) comprises for adjusting the pressing force and / or for adjusting a distance of the at least one pressing element ( 104 ) relative to the floor surface ( 32 ). Apparatus according to claim 13, characterized in that the adjusting device ( 110 ) is a vibrating device, with which the at least one pressing element ( 104 ) in the direction of the floor surface ( 32 ) and is vibratable away from it. Device according to one of the preceding claims, characterized in that the device, preferably in the machining direction ( 30 ) of the pressing device ( 26 ), a smoothing or leveling device ( 170 ) for smoothing or leveling the floor surface ( 32 ) having. Device according to one of the preceding claims, characterized in that the strand insertion device ( 20 ) comprises at least one storage device, for example a drum ( 86 ), on which the at least one strand ( 12 ) is storable. Device according to one of the preceding claims, characterized in that the strand insertion device ( 20 ) at least one guide element ( 92 ), which in the machining direction ( 30 ) of the excavating device ( 18 ) and via which the at least one strand ( 12 ) in the recess ( 38 ) is feasible. Device according to one of the preceding claims, characterized in that the device ( 10 ; 120 ; 140 ) for the simultaneous laying of two or more strands ( 12 ) and that the strand insertion device ( 20 ) two or more strands ( 12 ). Device according to one of the preceding claims, characterized in that at least one strand ( 12 ) a pipe or hose line ( 36 ; 144 ), such as a pipe or hose ( 36 ; 144 ) for carrying out a heat transfer medium, for isolation, for irrigation, for dewatering, for aerating, for fertilising and / or for sowing. Device according to one of the preceding claims, characterized in that at least one strand ( 12 ) a planting tape ( 142 ), an electric line or a glass fiber line. Device according to one of the preceding claims, characterized in that two or more strands ( 12 ) are provided, one above the other or side by side in the recess ( 38 ) can be introduced. Device according to claim 21, characterized in that the strands ( 12 ) are different, for example, that a planting tape ( 142 ) and a pipe or hose line ( 144 ) is provided for irrigation and / or ventilation and / or fertilization or that a pipe or hose ( 36 ) for a heat transfer medium and an insulation tape ( 152 ) is provided. Device according to one of the preceding claims, characterized in that the device ( 10 ; 120 ; 140 ) an additional insertion device ( 24 ) with a storage container ( 96 ) for seeds ( 102 ) and / or fertilizer ( 146 ), which via an outlet opening ( 98 ) of the storage container ( 96 ) the at least one strand ( 12 ) in the machining direction ( 30 ) downstream into the recess ( 38 ) can be introduced. Apparatus according to claim 23, characterized in that the amount of seed introduced ( 102 ) and / or fertilizer ( 146 ) is adjustable. Device according to one of the preceding claims, characterized in that the device ( 10 ; 120 ; 140 ) has a travel drive and / or that the device ( 10 ; 120 ; 140 ) a coupling device ( 28 ) for connection to a towing vehicle. Laying plant for laying preferably at least one strand ( 12 ) in a floor area ( 32 ) comprising two or more laterally juxtaposed devices ( 10 ; 120 ; 140 ) according to any one of the preceding claims. Laying installation according to claim 26, characterized in that the laying installation ( 130 ) a drive device ( 136 ) for jointly driving the excavating devices ( 18 ) of the devices ( 10 ; 120 ; 140 ). Laying installation according to claim 26 or 27, characterized in that the laying installation ( 130 ) a distance changing device ( 136 ), with which the distance of at least two devices ( 10 ; 120 ; 140 ) is changeable from one another to change the distance between the devices ( 10 ; 120 ; 140 ) each deployable strands ( 12 ) relative to each other. Laying installation according to one of claims 26 to 28, characterized in that the devices ( 10 ; 120 ; 140 ) are identical. A method for laying preferably at least one strand in a floor surface, especially a sports or leisure facility or an agricultural area, with a device according to any one of claims 1 to 25, wherein preferably at least one strand is introduced into the recess via the strand insertion device, related to a machining direction of the device, the excavation device and the excavation along the at least one return element of the excavation return device is fed downstream in the processing direction of Strangeinbringeinrichtung recirculated into the recess.

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