• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A soccer field heat sheet (10) comprising a polyvinyl chloride sheet (11), an electrical resistance cable (12) adhered to the polyvinyl chloride sheet (11) according to predetermined patterns and distances, an aluminum foil (13) bonded to the polyvinyl chloride Film (11) and the Heizwiderstandskabel (12) is glued, and a control system (22) for supplying the Heizwiderstandskabels (12), wherein the heat sheet (10) with the aluminum foil (13) placed up on the football field is positioned.
    公开号:AT13781U1
    申请号:TGM237/2013U
    申请日:2013-07-19
    公开日:2014-08-15
    发明作者:
    申请人:Promix S R L；
    IPC主号:
    专利说明:

    Austrian Patent Office AT 13 781 U1 2014-08-15
    Description " HEAT PLAN, ESPECIALLY FOR FOOTBALL FIELDS " The present invention relates to a heat sheet or a heat tarpaulin, in particular for football fields and a system for heating a surface.
    In winter, a football field made of natural grass, and those made of artificial turf, a number of major problems, such as cold, snow and ice must cope, making the field unusable.
    One solution to addressing these problems may be to use a floor heating system that makes optimal use of the playing surface even in difficult conditions and promotes vegetative growth that would otherwise be inhibited by low temperatures.
    If the football field is not equipped with the Bodenheizsystem, an important aid cloths or tarpaulins of plastic material that cover the football field and must be removed before the game. These tarpaulins form a coat that reduces the severity of winter.
    In the case of snow, before removing the plastic sheeting, the snow must be shoveled off the field and this requires a considerable number of workers and mechanical shovels. The latter may, among other things, damage the field.
    It is the object of the present invention to provide a heat sheet or a heat sheet for soccer fields, which overcomes the disadvantages of the prior art.
    Another object is to provide a heat sheet or sheet that is easy to manufacture.
    According to the present invention, these and other objects are achieved by a heat sheet for soccer fields, comprising: at least one waterproof backing film, for example, polyvinyl chloride; an electrical heating resistor cable adhered to the waterproof backing sheet or integrated between two waterproof backing sheets coupled together, an aluminum foil adhered to the waterproof backing sheet and the heating resistor cable; a control system for supplying the Heizwiderstandskabels; wherein the heat sheet or the heat sheet is positioned with the aluminum foil placed up on the football field.
    Further features of the invention are described in the dependent claims.
    Thanks to the present invention, a thermal tarpaulin is obtained which, in the case of snow, obviates the need for snow shoveling and thus obviates the need to provide workers and equipment for this purpose. As soon as the snow touches the tarp, it melts and the resulting water is drained away by the inclinations of the field and the holes in the tarpaulin.
    Since the snow does not have to be scooped away, there is no risk that the underlying sod surface will be damaged. There are no snow drifts due to the snow shoveling on the side of the field and / or the snow shoveled away does not have to be removed.
    The heat sheet of the present invention must achieve an adequate temperature and therefore has a low consumption, unlike the floor heating systems, which have a much higher energy consumption to achieve a similar temperature.
    The features and advantages of the present invention will become more apparent from the following detailed description of a practical embodiment thereof, given by way of non-limiting example with reference to the accompanying drawings, in which: FIG in which: Figure 1 shows schematically a sectional view of a heat sheet for soccer fields according to the present invention; Figure 2 shows schematically a transparent plan view of a heat sheet for football fields according to the present invention; Figure 3 shows schematically a football field with rolls of a heat sheet for football fields on the field sides and a single exemplary sheet of heat laid out spread on the field, according to the present invention; Figure 4 shows schematically a sectional view of a heat sheet for football fields according to the present invention in a variant.
    With reference to the attached Figures 1-3, a heat sheet 10 for soccer fields according to the present invention and in a first embodiment seen in section or cross-section comprises a waterproof support foil 11, for example made of polyvinyl chloride (PVC), preferably reinforced with a net and therefore having a high resistance, for example weighing 220 g / m2 and in each case having a weight in the range between 200 and 400 g / m2 and a thickness in the range between 0, 5 and 3 mm.
    Other materials may be used as an alternative to the polyvinyl chloride (PVC) film 11, provided they have equivalent resistance, for example, an embossed polyester fabric.
    An electrical Heizwiderstandskabel 12 is applied to the film 11. For example, a resistance cable with a diameter of 1.60 / 1.65 mm can be used, coupled with a 0.40 / 0.45 mm diameter harmonic steel or spring steel conductor or other alloys suitable for / Purpose, the whole is covered with a 1.2 mm PVC insulation or other suitable insulating material, or suitable heating cables or bands.
    In one embodiment, the Heizwiderstandskabel 12 is a stranded cable or stranded cable, which is formed in particular with seven copper-coated steel wires.
    An aluminum foil 13, preferably prefabricated and / or reinforced with a net, for example made of glass fiber, is applied to the Heizwiderstandskabel 12 to increase its resistance.
    The thickness of the aluminum foil 13 is in the range between 0.012 and 0.020 mm. However, the thickness of the aluminum foil 13 may be even greater if higher heat diffusion is required. Other films of thermal conduction material may be used as an alternative to the aluminum foil 13.
    In one embodiment, which is shown in Figure 4, the Heizwiderstandskabel 12 is integrated between two waterproof support or carrier films 11, for example, both made of polyvinyl chloride (PVC), coupled to each other, for example, by welding or heat sealing. In this case, the aluminum foil 13 is applied to one of the two waterproof carrier films 11, with one pointing upwards.
    In one embodiment, the outer side of the aluminum foil 13, i. the bottom side, coated with a protective film 40, such as a transparent polyester film, which has the function of protecting the aluminum foil 13 from scratches or other types of cuts.
    In one embodiment, the films 11 and 13 and the heating resistor cable 12 are preferably bonded together by means of the EVA (ethyl vinyl acetate) adhesive, which is an adhesive formed by heat-melting films or adhesives having similar high tenacity. Thus, an ethyl vinyl acetate film is placed between one and the other layer to be bonded, and then it is heated and the layers are glued, or alternatively with adhesives, which are suitable for the purpose, or hot or ultrasonic welding.
    The set of the sheets 11 and 13 and the resistance cable 12 creates a heat sheet having a total thickness in the range between 1.5 and 5 mm and is therefore flexible and capable of being rolled up.
    The heat sheet 10 is then pierced with holes having a diameter equal to 2 mm and in any case in the range between 1 and 5 mm, with a density equal to 100 holes per square meter and in any case in the range between 50 and 150 holes per square meter.
    The heat sheet 10 is made with towels or tarpaulins having a width of 3-5 m and a length equal to the dimensions of a football field having a variable length of 30 to 100 m. While Figure 3 shows tarpaulins 10 forming strips parallel to the smaller sides of a soccer field, the tarpaulins 10 may also be of such length that they are positioned parallel to the larger sides of the field. In one embodiment, the heating resistor cable 12 forms a delivery line 30 and a return line 31 which are arranged parallel to the longer side of the heat sheets 10.
    Preferably, the supply line 30 is connected to the return line 31 at one end thereof, while the terminals at the other end are connected to a supply connector 20.
    The distance between the supply line 30 and the return line 31 is in the range between 5 and 15 cm, depending on the temperature to be reached. For example, the distance is shorter for colder fields. Each pair of conduits 30, 31 is adjacent to other pairs of conduits, always at a distance in the range between 5 and 15 cm, to occupy the entire tarpaulin 10.
    In addition, a plurality of supply connectors 20 are placed on the field sides, which are supplied by a connecting cable 21, controlled by a control center 22.
    In an advantageous embodiment, temperature sensors are provided, for example a sensor for monitoring the plane temperature and a sensor for monitoring the ground temperature, connected to the control or regulation center 22.
    Depending on the requirements, the control or regulating center 22 supplies or feeds the heating band 12 either continuously or continuously or intermittently, depending on the temperature to be reached. The supply can also be distributed by supplying one pair of leads 30, 31 and others not.
    In one embodiment, the control center 22 is adapted to manage a plurality of heat sheets 10 in parallel covering a soccer field. Depending, for example, on the temperature values detected by the sensors, advantageously only a few tarps 10 can be supplied or fed by all those covering the field.
    The Heizwiderstandskabel 12 is with a mains voltage of 200 Vac or V AC (or 380 Vac or V AC), since the tarpaulin is placed on a field without people are in the vicinity, or with a low voltage of < 48 Vac or V AC supplied.
    The required power may be in the range between about 90 W / m 2 and about 250 W / m 2, according to the geographic areas in which the heat sheet 10 is used, and the control system is capable to modulate both the distribution of the tarpaulins to be heated and the current flow. Therefore, there is also the possibility of using lower powers which allow the use of the electrical power already installed in the various structures, which normally have between 50 and 150 KWh 3/7 Austrian Patent Office AT 13 781 U1 2014-08-15.
    The heat output can be changed either with a different number of heating cables 12 or by changing the resistivity of the cables.
    The heat sheet 10 must be placed with the aluminum foil 13 pointing upwards on the football field.
    Since the aluminum foil 13 is a heat conductor, this makes it possible to make the temperature on the tarpaulin 10 uniform and prevents high temperatures from prevailing only near the heating resistance cable 12 and low temperatures elsewhere.
    Further, the aluminum foil 13 placed on the heating resistor cable 12 exerts a heat-reflecting effect and also allows downward heat radiation, i.e., heat-deflection effect. towards the turf, which protects them from freezing without high temperatures that can damage the turf.
    Regardless of the atmospheric temperature, the management and control system 22 allows a controlled temperature of the tarp of about 3 ° C, and in any case in the range between 1 ° C and 5 ° C.
    In the case of snow, such temperature is sufficient to melt the snow when it contacts the heat sheet 10 or to protect the sod in the case of freezing.
    The typical slope for football fields is used to drain the water, but the existing in the plane 10 holes favor draining.
    In particular, the number of holes need not be as large as would require good deflation, but a number of holes that are less than expected produces a surface water film that facilitates the melting of snow.
    Thanks to its flexibility, the heat sheet 10 can be rolled up and unrolled on the soccer field 30 by means of manual or automatic rollers 31 placed on the field sides.
    Several heat sheets are used side by side to completely cover a field.
    Heretofore, it has been said that the thermal cover 10 is used to cover soccer fields, but it can also be used for other purposes, for example covering terraces and galleries, to prevent the snow from having to be scooped away. In this case, the holes may be missing.
    Advantageously, the heat sheet 10 can be extended onto the pressure structures to prevent snow loads. 4.7
    权利要求:
    Claims (13)
    [1]
    Austrian Patent Office AT 13 781 U1 2014-08-15 Claims 1. A thermal cover (10) for soccer fields, comprising: at least one waterproof carrier film (11), for example of polyvinyl chloride; an electrical heating resistor cable (12) adhered to the waterproof carrier film (11) or laid between two watertight carrier films (11) coupled to each other, an aluminum foil (13) applied to the at least one waterproof carrier film (11) and the heating resistor cable (12 ) is pasted; a control system (22) for supplying the heating resistor cable (12); wherein the heat sheet (10) is adapted to be positioned with the aluminum foil (13) placed up on the football field.
    [2]
    2. Thermal tarpaulin according to claim 1, characterized in that the heat tarpaulin has a total thickness in the range between 1.5 and 5 mm.
    [3]
    3. Thermal tarpaulin according to claim 1 or 2, characterized in that the Heizwiderstandskabel is adhered by means of an ethyl vinyl acetate film or suitable adhesives on the waterproof carrier film.
    [4]
    4. Thermal tarpaulin according to claim 1 or 2, wherein the Heizwiderstandskabel is positioned between two waterproof carrier foils which are glued or welded together.
    [5]
    5. Thermal cover according to one of the preceding claims, characterized in that the aluminum foil is adhered by means of an ethyl vinyl acetate film or suitable adhesives on the waterproof carrier film and on the Heizwiderstandskabel.
    [6]
    6. Thermal tarpaulin according to one of the preceding claims, characterized in that the heat tarpaulin comprises a plurality of through holes.
    [7]
    A heat sheet according to claim 6, characterized in that the heat sheet comprises a plurality of through holes having a density in the range between 50 and 150 holes per square meter.
    [8]
    The heat sheet according to claim 6 or 7, characterized in that each of the plurality of through holes has a diameter in the range between 1 and 5 mm.
    [9]
    9. Thermal tarpaulin according to one of the preceding claims, characterized in that the control or regulating system comprises means for periodically interrupting the supply of Heizwiderstandskabels.
    [10]
    10. A heat sheet according to claim 9, characterized in that the means periodically interrupt the supply of the heating resistor cable so that the temperature of the aluminum foil is in the range between 1 ° C and 5 ° C.
    [11]
    11. Thermal cover according to one of the preceding claims, wherein a protective film on the side of the aluminum foil, which faces up, is applied, for example consisting of transparent polyester.
    [12]
    A system for heating a surface exposed to snow or ice, comprising a plurality of heat sheets according to any one of the preceding claims and a control and supply unit of the sheets, the heat sheets being connected together to be individually controlled - or control and supply unit to be controlled or regulated.
    [13]
    13. Heating system according to the preceding claim, comprising temperature sensors, which are connected to the control and supply unit, for monitoring the temperature of the heat sheets and / or the floor. For this 2 sheets drawings 5/7
    类似技术:
    公开号 | 公开日 | 专利标题
    EP0045376B1|1986-03-12|Sloping-roof covering
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    DE4311947A1|1994-06-01|Measuring electrode for leak detection systems
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    DE2217338B2|1980-04-03|Device for de-icing, irrigation and drainage of sports fields
    DE2720824A1|1978-11-16|House insulating wall or roof cover - comprises hollow plates with tongues and grooves at opposite lengthwise edges
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    DE2623321A1|1977-12-01|Three-layer gymnasium floor - having central load-distributing layer of high strength and toughness
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    同族专利:
    公开号 | 公开日
    FR2993471B3|2015-01-16|
    UA87409U|2014-02-10|
    CA2821488A1|2014-01-20|
    CZ26077U1|2013-11-11|
    US20140020672A1|2014-01-23|
    FR2993471A3|2014-01-24|
    RU138835U1|2014-03-27|
    EP2687368A1|2014-01-22|
    ITBG20120028U1|2014-01-21|
    PL404775A1|2014-02-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2535877A1|1975-08-12|1977-02-24|Horst Dipl Ing Adam|Sports ground or similar weather protective assembly - consists of plastics sheets hooked or otherwise linked, with steel post support|
    DE3126441A1|1981-07-04|1983-02-03|Hofmann, Anneliese, 6050 Offenbach|Deicing system for roof. pavement etc. - comprises electrically or fluid heated mat for placing over area to be cleared|
    WO1988005678A1|1987-02-03|1988-08-11|Renzo Cavalieri|Automatic apparatus for covering fields, in particular sports pitches|
    CA2312299A1|2000-03-10|2001-09-10|Claude J. Degarie|Golf green cover|
    US5591365A|1994-07-14|1997-01-07|Shields; Christopher B.|Open lattice snow melting apparatus|
    US20040035853A1|2002-08-26|2004-02-26|Aaron Pais|Heating mat|
    US20060289468A1|2005-03-17|2006-12-28|Randy Seibert|Snow and ice melting mat|FR3008721B1|2013-07-19|2018-02-09|Cie Maritime D'expertises|DEVICE AND METHOD FOR RECOVERY|
    ES2609251B1|2015-10-16|2017-11-22|Antonio Ibañez De Alba|Lawn protection and conservation cover for sports fields|
    ES2676666B1|2016-12-23|2019-04-29|Dealba Pastor Patents S L|Lawn protection and conservation blanket for sports fields|
    法律状态:
    2017-03-15| MM01| Lapse because of not paying annual fees|Effective date: 20160731 |
    优先权:
    申请号 | 申请日 | 专利标题
    IT000028U|ITBG20120028U1|2012-07-20|2012-07-20|THERMAL TOWEL IN PARTICULAR FOR SOCCER FIELDS|
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