EP2957329A1 - Line system, in particular marking line system for artificial lawn tennis courts filled with sand - Google Patents

Abstract

Shown and described is a line system, in particular for marking lines for sand-filled artificial grass tennis courts, comprising a first or upper profile part (13) and a second or lower profile part (15), which two profile parts are longitudinally joined together in parallel longitudinal alignment. According to the invention, it is provided that the first or upper profile part (13) and the second or lower profile part are adjustable relative to one another in the transverse direction to the longitudinal orientation, in particular height-adjustable.

Description

TECHNICAL FIELD OF THE INVENTION

The invention comprises a line system, in particular a marking line system, for sand-filled synthetic-grass tennis courts according to the preamble of claim 1.

BACKGROUND OF THE INVENTION

Today often used marking lines for tennis courts are made of flexible hard plastic. Depending on the type of space, the line is anchored with nails directly in the ground or placed on a lower bar and anchored with nails together with the bottom bar. The first variant is mainly used in clay courts. The second variant is today preferably used in artificial turf or sand-filled artificial turf.

Artificial turf is subject to heavy wear, whereby the thickness of the artificial turf cover gradually decreases. The marking lines, on the other hand, show little wear and tear, so that they overhang the surface of the lawn over time.

TASK

It is an object of the present invention to provide a line system, ie a marking line system for tennis courts, with which the disadvantages mentioned above can be largely eliminated and which does not have the disadvantages of the prior art, or at least partially avoids. Object of the present invention is also to provide a line system that can be adapted to the changing artificial turf surface. In addition, a survival of marking lines to be prevented.

DESCRIPTION

These and other objects are achieved by the features of the independent claims. Further developments and / or advantageous embodiments of the invention are the subject of the dependent claims.

This invention meets the foregoing requirements by providing a line system including a first profile member and a second profile member which are longitudinally mateable in parallel longitudinal orientation and which is characterized in that the first profile member and the second profile member are transverse to each other in longitudinal direction adjustable (especially height adjustable) are. In particular, when the second profile part rests on the ground and possibly secured, the first profile part is height adjustable against the second profile part in approximately vertical direction.

The line system according to the invention is particularly suitable for marking lines on artificial turf tennis courts. It is particularly well suited for sand-filled artificial grass tennis courts.

The below-mentioned advantageous embodiments lead alone or in combination with each other to further improvements of the inventive line system.

Preferably, the first profile part includes at least two longitudinal legs, which cooperate with at least two longitudinal legs of the second profile part such that when joining the two profile parts, a hollow profile with a longitudinal cavity is formed.

More preferably, one of the two profile parts (in particular, for example, the first profile part) includes four longitudinal legs, which are divided into two pairs of legs, each with a groove, the two longitudinal legs of the other profile part (ie, for example, the second profile part) fit into the grooves of the leg pairs, so that the two profile parts form tongue and groove joints.

In particular, the first profile part and the second profile part in the transverse direction are mutually adjustable so that when adjusting the two profile parts of the longitudinal cavity in cross-section (at least in a cross-sectional direction) narrows or widens. The two profile parts are in this case in particular pushed along the legs in the direction of the leg depth against each other or optionally extendable. Thus, it is the mutual distance of the mutually parallel profile parts in a normal to the longitudinal orientation of the profile parts adjustable.

The two profile parts are thus conveniently along one side of their longitudinal alignment composable and adjustable in their distance.

Conveniently, for this purpose, the first profile part and the second profile part in the transverse direction by means of at least one spacer element, in particular by means of at least one screw, against each other adjustable, in particular height adjustable.

The mutual distance of the two, substantially parallel to each other aligned profile parts can be advantageously adjusted or adjusted in particular via the spacer. If the second profile part is e.g. on the ground or on a solid base and the first profile part is placed on the second profile part, by adjusting the distance between the two profiles, the height of the first profile part relative to the second profile part and thus, for. set against the ground or a firm surface. The spacer connects the two profile parts together and at the same time allows adjustment or adjustment of the distance between the profile parts. The spacer thus forms a height-adjustable connection of the two profile parts.

It is advantageous if the first profile part offers a receptacle for at least one head of the at least one spacer element, in which the at least one head fits in order to grip the first profile part in the said transverse direction or to interlock with the first profile part in said transverse direction or to lock. The at least one head can in particular engage in the receptacle (or the receptacle can conveniently grasp the head part of the spacer element) in order to adjust the first profile part in the mentioned transverse direction with respect to the first profile part, in particular adjustably or height-adjustably. Advantageously, the spacer element is designed as a screw (in particular a spacer element with threaded shank and head part).

Conveniently, the receptacle for the at least one spacer element in the first profile part is designed as a longitudinal double groove or rail structure. In particular, mutually opposite webs on the two longitudinal limbs of the first profiled part can form partial structures of said double groove or rail structure.

Conveniently, at least one point is provided in the second profile part, which is suitable for screwing in the threaded shank of a spacer element. Advantageously, the second profile part has at least one borehole or a breakthrough for anchoring the at least one spacer element. Conveniently, the borehole is provided with an internal thread for a screw. A spacer, which is for example designed as a screw, can thus be screwed into the borehole.

The first profile part may be equipped with at least one borehole or breakthrough. The borehole or breakthrough can serve as access for a tool for mutual adjustment of the two profile parts by means of said spacer element. The spacer has for this purpose in particular an attack on the said tool.

The first profile part preferably forms a substantially planar surface, optionally a substantially planar surface with rib structure and / or gutter structure.

The second profile part expediently forms a support structure which serves as a stand and against which the first profile part is in particular height-adjustable.

It is preferred that at least one of the profile parts, preferably both profile parts are made of aluminum.

Conveniently, the first profile part includes support structures on which a marking line can be clipped.

Furthermore, the present invention relates to a line system set comprising at least one line system as presented above, a plurality of spacer elements, in particular screws, for connecting the two profile parts and optionally marking lines for fixing on the first profile part.

Additional advantages and objects of the present invention will become apparent from the following description.

Figur 1:

einen Profilschnitt eines erfindungsgemässen höhenverstellbaren Liniensystems, (a) in einer Gesamtansicht, (b) in einer Teilansicht;

Figur 2

die Einzelteile eines erfindungsgemässen höhenverstellbaren Liniensystems: (a) ein oberes Profilteil in Profilschnittdarstellung, (b) ein unteres Profilteil in Profilschnittdarstellung, (c) eine Schraube in Schnittdarstellung;

Figur 3

einen Profilschnitt eines erfindungsgemässen Liniensystems, (a) bei grosser Höheneinstellung und (b) bei kleiner Höheneinstellung;

Figur 4

eine dreidimensionale Ansicht eines erfindungsgemässen Liniensystems, (a) bei grosser Höheneinstellung und (b) bei kleiner Höheneinstellung;

Figur 5

einen Ausschnitt eines Profilschnitts eines erfindungsgemässen höhenverstellbaren Liniensystems mit seitlich verlegtem Kunstrasen und aufgeklemmter Markierungslinie.

In a not to scale, schematic representation:

FIG. 1:

a profile section of an inventive height-adjustable line system, (a) in an overall view, (b) in a partial view;

FIG. 2

the individual parts of a height-adjustable line system according to the invention: (a) an upper profile part in a profile sectional view, (b) a lower profile part in a profile sectional view, (c) a screw in a sectional view;

FIG. 3

a profile section of a line system according to the invention, (a) at high height adjustment and (b) at low height adjustment;

FIG. 4

a three-dimensional view of a line system according to the invention, (a) at high height adjustment and (b) at low height adjustment;

FIG. 5

a section of a profile section of an inventive height-adjustable line system with laterally installed artificial turf and clamped marking line.

In the following, the same reference numerals for the same or functionally identical elements in different figures.

An inventive line system is in Fig. 1a shown in a schematic profile section. FIG. 1b shows an enlargement of a partial area Fig. 1a , Profile sections of the individual parts of a line system according to the invention are shown in FIG Fig. 2a and 2b shown. A sectional view of a possible connecting element, ie a screw, is in Fig. 2c shown schematically. A line system according to the invention is suitable for marking tennis courts, in particular artificial turf pitches and, in particular, artificial turfs filled with sand.

The operation of a line system according to the invention is characterized by Fig. 3a and 3b in profile section view and the Fig. 4a and 4b illustrated in three-dimensional oblique view.

In Fig. 5 a line system according to the invention under conditions of use together with synthetic grass carpet and attached marking line is visualized schematically simplified.

A line system 11 (FIG. Fig. 1 ) essentially comprises two profile parts 13 and 15, which are mutually adjustable ( Fig. 2 (a) and (b) ). In particular, after assembly, the upper profile part 13 with respect to the lower profile part 15 is height adjustable. Fig. 3 (a) shows the line system with high height adjustment, as it is used more at the beginning of the use of a new artificial turf pitch, since the synthetic grass carpet is not worn yet and thus still quite thick. Fig. 3 (b) however, the line system at low height adjustment, as it is adjusted after a certain wear by lowering the upper profile part to the smaller thickness of a worn synthetic turf carpet. 4 (a) and (b) shows the corresponding situations in a three-dimensional representation. The individual parts of the line system including at least the upper profile part 13 and the lower profile part 15 are in Fig. 2 (a) and (b) shown. The preferred connecting element is a screw, which in Fig. 2 (c) is shown separately. In Fig. 5 is the overall system - constructed from profile parts according to Fig. 4 (a), (b) and a screw according to FIG. 4 (c) - in conjunction with an artificial turf carpet 71, 72, the subsections of which border the left and right of the upper profile part 13 and rest on the feet 65, 67 of the lower profile part 15.

The lower profile part 15 is conveniently located on the ground and is preferably bonded to the artificial turf in particular glued. The upper profile part 13 is placed in parallel or longitudinal alignment with the lower profile part 15. At both profile parts 13, 15 complementary connecting structures 21, 23, 28, 29 and 25, 27 are formed, which after assembly of the two profile parts 13, 15 close a resulting between the two profile parts channel 17 laterally ( Fig. 3a ). In particular, should not penetrate through the lateral closure of the channel 17 between the two profile parts 13,15 sand in the channel 17. In particular, the connection structures include at least two longitudinal profile legs 21, 23, 25, 27 on each of the two profile parts 13, 15. In this case, each one of the profile legs 21 and 23 of the upper profile part 13 directed against each one of the profile legs 25 and 27 of the lower profile part and adapted to this einschieb- or extendable and sealing. In a preferred embodiment of the invention like this in Fig. 1 In the present embodiment, the additional profile legs 28, 29 of the upper profile part 13 are formed parallel to the profile legs 21, 23 of the same profile part and form together with these two pairs of legs 31, 33, which each form a groove 35, 37, in which the oppositely directed profile legs 25, 27 of the lower profile part 15 can pierce. The profile legs 21, 23, 25, 27, optionally also the additional profile legs 28, 29, all have a certain minimum depth (eg at least 0.5 cm, preferably at least 0.75 cm, and more preferably at least 1 cm), so that a mutual adjustment, especially mutual approach or removal, the two profile parts over a certain distance (eg over at least 0.5 cm, preferably at least 0.75 cm, and more preferably at least 1 cm) while maintaining the lateral seal of the channel 17 is possible. The groove depths of the grooves 35, 37 of the two pairs of legs 31, 33 give in particular a maximum displacement for the displacement of the two profile parts 13 and 15 under sealing conditions. From a comparison of large profile height adjustment according to Fig. 3 (a) and small profile height adjustment according to Fig. 3 (b) the displacement path can be seen, the maximum value of which corresponds approximately to the groove depth of the grooves 35, 37 or, if appropriate, is slightly smaller than the groove depth of the grooves 35, 37.

The mutual adjustment (especially the height adjustment) of the two profile parts 31 and 15 can be accomplished by means of spacers. A possible spacer, By means of which this is possible is a screw 41, for example, as shown schematically in the Fig. 1 is shown. Preferably, a plurality of spacer elements, in particular of such screws 41, distributed over the length of the profile parts used.

In the Fig. 1 illustrated screw 41 has a relatively large head 43 with sufficient peripheral expansion, so that the screw head 43 can be bordered by a receptacle 45 and optionally guided. The receptacle is advantageously designed as a kind of longitudinal double groove in the upper profile part 13. Furthermore, the screw 41 has a threaded shank 47, which can be screwed to the other profile part, ie the lower profile part 15. The screw 41 is expediently aligned in the transverse direction to the longitudinal extent of the profile parts 13, 15.

The upper profile part 13 has between its profile legs 21 and 23 a receptacle 45 for the screw head 43. Conveniently, the recording is performed, for example, as an undercut longitudinal double groove for receiving two diametrically opposite regions of the periphery 49 of the screw 43. The recording 45 with undercuts 51,53 arises z. B. due to webs 55,57, which are applied between the legs 21, 23 and, if appropriate, optionally on said legs 21, 23. A screw head 43 can thereby advantageously be threaded from the end face of the profile part 13 ago and positioned at a suitable position in the longitudinal extension of the upper profile member 13, at or after the placement 13 of the upper profile member 13 on the lower profile member 15 with the lower Profile part 15 to be screwed. Thus, the receptacle 45 can advantageously serve as a slide rail for adjusting the screws during assembly of the line system for the screw head. In order for a tool to be able to engage the tool grip 59 of the screw head 43, at least one opening 61, for example designed as a bore, is provided in the surface 62 of the upper profile part. An opening 61 is in particular attached to a point of the longitudinal extent of the upper profile part 13, on which an adjustable connection with the lower profile part 15 is provided or expedient. In particular, at least one breakthrough 61 is provided per adjustable connection.

The lower profile part 15 has between its profile legs 25 and 27 a screw 63 for the screw shaft 47. This may include a material bridge 48 with or without structure, e.g. a predetermined breakthrough, a prefabricated bore with internal thread or the like. Depending on the material of the lower profile part 15, one or the other possibility (i.e., material bridge 48 with or without structure) is more advantageous. In a copy of the lower profile part 15 made of aluminum, a bore is provided with internal thread expediently. Depending on the material can be used prefabricated as threaded holes drilled holes in the lower profile part 15. Alternatively, the holes in the screw only in the assembly of the profile parts arise from the fact that the spacer element, in particular a screw 41, is pressed into the solid material of the profile part 15 by screwing.

Furthermore, the lower profile part 15 on the respective side of the profile legs 25 and 27 facing away from the screwing point 63 expediently has a preferably projecting floor support structure 65, 67. The bottom support structures 65, 67 serve in particular as a base of the line system and are preferably designed as projecting (in particular horizontally projecting), substantially flat plates. The artificial turf, which is expediently designed as a carpet 71,72, after mounting advantageously on both sides of the profiles on the bottom support structure 65, 67 and thereby stabilized position and orientation of the line system. Preferably, the carpet underside is glued to the bottom support structure 65, 67. Between the two floor support structures 65, 67, a concave curvature 68 may be formed in the profile part 15 (i.e., a profile curvature transverse to the longitudinal profile orientation).

The upper profile part 13 has holding structures, which allow a marking line 73, for example made of hard plastic, aufklippen. According to the present embodiment in FIG Fig. 5 are proposed as holding structures on the outside of the upper profile part 13 arranged longitudinal undercuts 69, 70, on which, for example, a marking line 73 with laterally curved clamping structures 75, 76 can be clipped. The marking line 73 is preferably designed as a profile (in particular as a clamping profile). If necessary, the marking line 73 covers the apertures 61, so that no sand can enter the cavity 17 between the two profile parts 13, 15 even from above.

For the assembly process:

The upper profile part 13 is equipped with spacer elements (fastening means), in particular with screws 41. In this case, in particular per perforation 61, 61, a screw 41 is threaded into the receptacle and positioned approximately under an opening 61, 61 '. The upper profile part 13 is now placed on the lower profile part 15, so that at least the first and second legs 21, 25 and 23, 27 of the first profile part 13 and the second profile part 15 can engage with each other. The spacers, i. in particular the screws 41 are now anchored in the lower profile parts or screwed into the lower profile parts 15. The upper profile part 13 is thus secured in height adjustable in the lower profile part 15 via the spacer elements, which are preferably designed as screws.

Artificial grass parts and the line system 11 according to the invention are laid in such a way that edge regions of the synthetic turf parts 71, 72 come to rest on the feet 65, 67 of the lower profile part 15. The upper profile part 13 may be factory mounted on the lower profile part 15 or optionally mounted only at the installation of the entire line system on the lower profile part 15. The height adjustment of the upper profile part is made via said spacers, in particular the said screws. Conveniently, the height adjustment of the line system is adjusted to the current artificial turf height such that the surface of the synthetic turf carpet 71, 72 and the surface of the marker line 73 are at approximately the same horizontal height level.

• Durch die Höhenverstellbarkeit des Liniensystems, kann dessen Höhe an jene des Kunstrasens angepasst werden. Somit ist auch bei älteren Tennisplätzen, deren Rasen schon abgenutzt und teilweise kürzer ist, immer eine plane Spieloberfläche gewährt.
• Die Verstellbarkeit ist auch bei sandverfüllten Kunstrasenplätzen gewährt, da dieser seitlich nicht in den Hohlraum zwischen dem ersten und zweiten Profil 13,15 eindringen kann.

The assembled line system is characterized in particular by the following features and advantages:

• Due to the height adjustability of the line system, its height can be adapted to that of the artificial turf. Thus, even with older tennis courts, whose turf is already worn and sometimes shorter, always granted a flat game surface.
• The adjustability is also granted in sand-filled artificial grass pitches, since this can not penetrate laterally into the cavity between the first and second profile 13,15.

While the invention has been described above with reference to specific embodiments, it will be apparent that changes, modifications, variations and combinations may be made without departing from the spirit of the invention.

LIST OF REFERENCE NUMBERS:

11

line system

13

Upper or first profile part

15

Lower or second profile part

17

Longitudinal channel, in particular longitudinal cavity

21

First inner leg of the upper profile section

23

Second inner leg of the upper profile part

25

First leg of the lower profile part

27

Second leg of the lower profile part

28

First outer leg of the upper profile part

29

Second outer leg of the upper profile part

31

First pair of thighs

33

Second pair of legs

35

First groove

37

Second groove

41

screw

43

screw head

45

admission

47

Screw shaft with thread

48

Bridge of the lower profile part

49

Periphery of the screw head

51

First undercut of the recording

53

Second undercut of the recording

55

First walkway

57

Second pier

59

tool application

61

breakthrough

61 '

breakthrough

62

Surface of the upper profile part

63

screw location

65

First stand

67

Second stand

68

Curvature of the lower profile part

69

First hindrance

70

Second undercut

71

Carpet, in particular artificial grass carpet (preferably sand-filled)

72

Carpet, in particular artificial grass carpet (preferably sand-filled)

73

marking line

75

First terminal side of the marking line

76

Second clamping side of the marking line

Claims (12)

Line system, in particular for marking lines for sand-filled synthetic grass tennis courts, including - A first profile part (13) and a second profile part (15), which two profile parts are longitudinally joinable in parallel longitudinal alignment,
characterized,
that the first profile part and the second profile part in the transverse direction to the longitudinal orientation, are mutually adjusted, in particular height adjustable. Line system according to one of the preceding claims, characterized in that the first profile part (13) has at least two longitudinal limbs (21, 23) which cooperate with at least two longitudinal limbs (28, 29) of the second profile part (15) in such a way Joining the two profile parts a hollow profile with longitudinal cavity (17) is formed. Line system according to claim 2, characterized in that the first profile part (13) and the second profile part (15) in the transverse direction are mutually adjustable so that when adjusting the two profile parts of the longitudinal cavity (17) narrows or widens in cross section. Line system according to one of the preceding claims, characterized in that the first profile part (13) and the second profile part (15) in the transverse direction by means of at least one spacer element (41), in particular by means of at least one screw against each other are adjustable. Line system according to claim 4, characterized in that the first profile part (13) provides a receptacle (45) for at least one head (43) of the at least one spacer element (41) into which the at least one head (43) can engage adjust the first profile part in the mentioned transverse direction. Line system according to claim 5, characterized in that the receptacle (45) for the at least one spacer element (41) in the first profile part is designed as a longitudinal double groove. Line system according to one of claims 4 to 6, characterized in that the second profile part (15) has at least one borehole or an opening (63) for anchoring the at least one spacer element (41). Line system according to one of claims 4 to 7, characterized in that the first profile part (13) is provided with at least one borehole or opening (61) which serves as access for a tool for mutual adjustment of the two profile parts. Line system according to one of the preceding claims, characterized in that the second profile part (15) forms a support structure (65, 67) which serves as a stand against which the first profile part (13) is in particular height adjustable. Line system according to one of the preceding claims, characterized in that at least one of the profile parts (13,15), preferably both profile parts are made of aluminum. Line system according to one of the preceding claims, characterized in that the first profile part includes support structures (69, 70) on which a marking line (73) can be clipped. Line system set comprising at least one line system (11) according to one of the preceding claims, a multiplicity of spacer elements, in particular screws (41), for connecting the two profile parts (13, 15) and optionally marking lines (73) for fastening on the first profile part (13) ,

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