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WO2012076864A1 - Ensemble surface destiné à une utilisation dans une piste de ski artificielle - Google Patents

Ensemble surface destiné à une utilisation dans une piste de ski artificielle Download PDF

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Publication number
WO2012076864A1
WO2012076864A1 PCT/GB2011/052387 GB2011052387W WO2012076864A1 WO 2012076864 A1 WO2012076864 A1 WO 2012076864A1 GB 2011052387 W GB2011052387 W GB 2011052387W WO 2012076864 A1 WO2012076864 A1 WO 2012076864A1
Authority
WO
WIPO (PCT)
Prior art keywords
filaments
length
region
surface assembly
assembly according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2011/052387
Other languages
English (en)
Inventor
Christopher A O'connell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PROSLOPE Ltd
Original Assignee
PROSLOPE Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PROSLOPE Ltd filed Critical PROSLOPE Ltd
Publication of WO2012076864A1 publication Critical patent/WO2012076864A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/10—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds for artificial surfaces for outdoor or indoor practice of snow or ice sports
    • E01C13/12—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds for artificial surfaces for outdoor or indoor practice of snow or ice sports for snow sports, e.g. skiing or ski tow track
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds

Definitions

  • the present invention relates to a surface assembly for use in forming an artificial snow slope, for example an artificial ski slope.
  • the present invention further relates to an artificial snow slope installation comprising the surface assembly.
  • references herein to an artificial ski slope are to an installation having a sloping surface replicating that of a snow covered slope and on which partakers of winter sports, such as skiing, snowboarding or the like, may practice.
  • Artificial ski slopes are known and are used in many regions around the world, in particular in countries and regions where snow fall is limited.
  • the slopes provide a surface that attempt to replicate the properties of a snow slope, to provide an artificial snow-like surface for practising winter sports activities, in particular skiing, snowboarding and the like.
  • One known assembly comprises a metal grid, typically of stainless steel, into which a plurality of bristles are clamped.
  • the grid contains voids between adjacent metal members.
  • a user may fall and be injured.
  • injuries arising from users trapping fingers and hands in the metal grid are known.
  • Such injuries are exacerbated when the surface assembly is poorly maintained and the metal grid underlying the bristles is allowed to become exposed, for example due to the failure to replace worn bristles.
  • the reliance of such systems on a metal grid provides a poorly cushioned surface on which to fall.
  • An alternative system to the metal grid-bases assembly is to provide a surface assembly in the form of a carpet.
  • the carpet assemblies by not being reliant upon a metal grid, address a number of the problems with the earlier grid-based systems.
  • artificial snow slopes reliant on carpet structures for the surface are prone to attracting fungi and spores.
  • the carpet-like structures are difficult to clean. This results in the surface assembly rapidly degrading and leads to an unpleasant and unsatisfactory experience for users wishing to practice and develop their winter sport skills.
  • an improved surface assembly for use in providing an artificial snow surface, in particular for an assembly that reduces the likelihood of injuries to the user, while also providing a surface that more closely replicates the properties of natural snow, thereby providing a more realistic experience for winter sports practitioners.
  • One feature common to the systems that are known and widely employed in practice is that the contact surfaces provided by the assemblies to users are of a single height, typically by having the fibres, bristles or pile of the surface assembly presented to users of a single size or length. This compromises the ability and performance of the surface to replicate natural snow, in turn compromising the skiing or snowboarding sensation.
  • the known and frequently applied systems limit the type and quality of turns and changes in direction that readily be made by users on the surface.
  • US 3,959,542 discloses an artificial ski matting, wherein a plurality of ski mats may be interlocked to form an artificial skiing surface.
  • Each mat comprises a base ski support surface and a plurality of spaced apart pegs having flexible so-called “fluff” fingers on each peg.
  • a second plurality of spaced pegs are interposed on the mat and having flexible so-called “turn” fingers on each peg.
  • the "fluff” fingers form a generally horizontal ski surface permitting skis to sink into the fluff fingers and track on the mat as a ski would do in natural snow.
  • the "turn” fingers form a generally horizontal ski surface lower than the first-mentioned horizontal ski surface permitting skis to dig into the mat and "turn” thereon.
  • the base ski support surface provides support for the skis of a user when they protrude or dig further down into the mat, such as when sufficient centrifugal force is created either in a dip or turn while skiing.
  • US 2006/0068157 discloses an artificial ski slope surface for laying on an underlying surface.
  • the artificial surface comprises a looped filament carpet and a resilient base layer, the carpet being releasably attached to the resilient base layer.
  • releasable attachment mechanisms disclosed include a hook and loop attachment mechanism, for example Velcro®, or interlocking brushes. It is indicated that the releasable attachment mechanism should inhibit movement of the carpet across the base, as well as to inhibit movement of the carpet away from the base.
  • the loops of the filament carpet may have a random directional weave pattern. The height of the loops may be constant across the carpet. Alternatively,
  • US 2006/0068157 suggests that the loops within the looped filament carpet may have a variety of heights. For example a carpet may be provided with loop heights of 8 mm and 12 mm across its surface. In particular, different loop heights and mixes of loop heights may be used to provide different skiing characteristics, for varying ski levels or uses such as snowboarding or tobogganing. US 2006/0068157 discloses that when the loops are arranged to provide a random height pile, the resulting artificial ski slope surface will have enhanced edging and brushing characteristics. In particular, when the edge of the ski compresses the longer loops the ski will then contact with the shorter loops, in turn resulting in greater control for the user.
  • US 2006/0068157 specifically indicates that the pile of the surface is without apertures, in contrast to configurations provided in the prior art, in which spaces are provided between areas of bristles to provide the required frictional characteristics of the surface. It has now been found that an improved surface assembly for providing an artificial snow surface can be formed using upstanding filaments of different lengths and by arranging the filaments into regions, with adjacent regions having filaments of different lengths. Accordingly, the present invention provides a surface assembly for use in an artificial snow slope, for example an artificial ski slope, the surface assembly comprising:
  • the present invention provides an improved surface assembly for use in forming a slope for skiing, snowboarding and the like. It does this by employing brush technology using the brush filaments at variable heights. This, in turn, allows for the dynamic behaviour of the participant to come into contact with different filaments during the movement of skiing or snowboarding and the changing of direction.
  • the surface assembly of the present invention does not rely on a metal substrate in its construction and can be free of metal components.
  • the surface assembly comprises a substrate layer or mat.
  • the substrate layer comprises an upper surface, from which upstanding filaments extend to form the artificial snow surface.
  • the opposing surface of the substrate layer forms an underside, typically contacting a supporting structure or surface when the surface assembly is installed.
  • the substrate layer may be any suitable shape and size.
  • the substrate layer is a rectangular or square panel of substrate material.
  • other shapes and configurations may also be employed. It is particularly preferred that the substrate layer is in the form of a panel with shape that allows a plurality of panels to be laid adjacent each other to provide a substantially continuous exposed surface replicating a snow slope.
  • the substrate layer may be formed from any suitable material, most preferably a flexible material. Examples of suitable materials include plastics, such as polyolefins, including polyethylene and polypropylene and other polymers. Other suitable materials include natural or synthetic rubber.
  • the substrate layer may be in any form, for example being woven or moulded.
  • the substrate layer is provided with holes, for example formed by punching, through which the filaments extend.
  • the surface assembly may be mounted or secured to a suitable structure by means of the substrate layer in any suitable manner.
  • the surface assembly may be secured to a grid, for example a metal grid of cables, such as steel cables, under a suitable tension.
  • the substrate layer may be attached to a supporting structure, such as a geotextile substructure or drainage mesh, by way of ties or hook and loop fastener materials, such as Velcro®.
  • the substrate layer may be secured to a supporting structure by means of screws or bolts. Such a fastening method is particularly suitable for wooden substructures.
  • the surface assembly may be constructed in a range of different shapes and applications. Adjacent panels of the substrate layer may be connected together using any suitable means, if required. Ties, such as plastic cable ties, are suitable for this purpose.
  • the substrate layer may be provided with one or more openings for drainage purposes, whereby water on the exposed surface of the surface assembly may be removed and allowed to drain through the substrate layer. Further, the substrate layer may be provided with one or more grooves on its underside, to aid in laying the layer flat on a supporting surface or structure.
  • the surface assembly of the present invention further comprises filaments extending from the substrate layer.
  • the exposed or distal ends of the filaments form and provide an exposed surface of the surface assembly replicating snow.
  • the filaments may be secured to the substrate layer in any suitable manner.
  • the filaments may be secured to the substrate layer so as to extend through holes formed therein, for example by punching as noted above. This allows the surface assembly to retain moisture and water, thereby lubricating the surface.
  • the filaments may be attached to the substrate or base layer by means of staples.
  • the staples are preferably of a material that is resistant to corrosion. Stainless steel staples are preferred.
  • the filaments are flexible and may be made of any suitable material. This may be the same material as the substrate layer or different therefrom. Suitable materials for the filaments include plastics, in particular polyolefins, such as polyethylene and polypropylene, polyvinylchloride,
  • the filaments may have any suitable diameter. The diameter of the filaments will depend upon such factors as the stiffness required for the filaments and the material from which they are formed.
  • the filaments may have a diameter in the range of from 0.3 mm to 5 mm, more preferably from 0.4 to 3 mm, still more preferably from 0.5 mm to 2 mm.
  • a diameter in the range of from 0.5 to 1 .2 mm is particularly preferred.
  • the diameter of the filaments in the first region may be the same as that of the filaments in the second region or different therefrom, preferably the same.
  • the filaments within each region may be of a single diameter or may have different diameters.
  • the filaments of each region are preferably of a single diameter.
  • the filaments extend from the upper surface of the substrate layer and are arranged into regions or tufts.
  • the surface assembly has a first region of filaments and a second region of filaments.
  • the filaments in the first region are shorter in length than the filaments in the second region. This provides for greater adhesion and grip for a user practising a winter sport, such as skiing or
  • the filaments in the first region may range in length from 5 mm to 25 mm, more preferably from 7 to 20 mm, still more preferably from 10 to 20 mm. In one embodiment, the filaments in the first region have a length in the range of from 10 to 15 mm, more preferably about 12 mm. In another embodiment, the filaments in the first region have a length in the range of from 15 to 20 mm, more preferably about 17 mm.
  • the filaments in the second region being longer than the filaments in the first region, may range in length from 10 mm to 50 mm, more preferably from 15 to 40 mm, still more preferably from 20 to 35 mm. In one embodiment, the filaments in the second region have a length in the range of from 20 to 30 mm, preferably about 25 mm.
  • the filaments in the first region may be of a single length.
  • the filaments in the first region may be of different lengths, for example as in the embodiments described below.
  • the filaments in the second region may be of a single length.
  • the filaments in the second region may be of different lengths, also as described hereinafter.
  • the first and second regions are adjacent one another.
  • the surface assembly may comprise a plurality of first regions and/or a plurality of second regions, with each first region being adjacent a second region and separating it from an adjacent first region.
  • the surface assembly comprises a single second region having dispersed therein isolated first regions of filaments.
  • the surface assembly comprises a single first region having dispersed therein a plurality of second regions.
  • the first and second regions may be of any suitable shape. Examples of suitable shapes include circular, elliptical or other rounded shapes, rectilinear, rectangular, or polygonal.
  • the surface assembly comprises one of the first or second regions arranged as a continuous matrix, such as a grid, in particular a rectangular or square grid, preferably comprising generally orthogonally extending grid portions. The grid has disposed therein a plurality of the other of the first or second regions.
  • the exposed ends of the filaments may be considered to combine to form an exposed surface. It is this surface that the skier or other user of the assembly contacts and over which they move.
  • the filaments in the surface assembly may be of such a length and arranged such that the boundary between the adjacent first and second regions may comprise a continuous or substantially continuous exposed surface. Alternatively, the boundary between the adjacent first and second regions may provide a discontinuity in the exposed surface. In one embodiment, the boundary between the adjacent first and second regions provides a discontinuity in the exposed surface of the surface assembly, characterised by an abrupt change in length of the filaments when passing from one region to the other. This is achieved by having the filaments of the first region adjacent those of the second region of a substantially different length. For example, the filaments of the first region may be 25% of the length of the adjacent filaments of the second region, more preferably 50%. This arrangement is particularly preferred when the filaments in each of the first and second regions are of a single length.
  • the filaments in each of the first and second regions may be different lengths within each region, and arranged to provide a smooth or substantially smooth graduation from the first region to the second region.
  • the first region, having the shorter filaments has the filaments of different lengths arranged to form a substantially concave exposed surface.
  • the filaments of the second region are of different lengths and are arranged to form a substantially convex exposed surface.
  • the first region is provided with filaments forming a concave exposed surface and the second region is provided with filaments forming a convex exposed surface.
  • the boundary between the adjacent concave first region and the convex second region is preferably continuous or substantially continuous with no significant abrupt change in filament length from one region to the other.
  • the first region may comprise filaments having a first length and a second length, the first length being shorter than the second length.
  • the second region may comprise filaments having the second length and a third length, the third length being greater than the second length.
  • the aforementioned arrangement is achieved using filaments of three or more different lengths distributed between the first and second regions.
  • the arrangement may be achieved by providing the first region with filaments having a length of from 10 to 15 mm, in particular about 1 1 to 13 mm; and the second region with filaments having a length of from 20 to 30 mm, in particular about 23 to 27 mm.
  • the portions of the first and second regions adjacent the boundary therebetween are provided with filaments of an intermediate length, in particular from 15 to 20 mm, more particularly from 16 to 18 mm in length.
  • such an arrangement is obtained using filaments of length 12 mm, 17 mm and 25 mm.
  • the lengths of the filaments may be varied according to the rate of wear of the filaments when the assembly is in use and the precise properties required by the surface.
  • the concave and/or convex configuration of the exposed outer surface also provides for improved retention of moisture and water, including snow should it fall, as well as improved retention of surfactants and lubricants, such as silicones, which may be added to the surface assembly to reduce friction and enhance lubrication.
  • the present invention provides an artificial snow slope, in particular a ski slope, installation comprising a surface assembly as hereinbefore described.
  • Figure 1 is a plan view of the exposed surface of an assembly according to one embodiment of the present ivnetnion
  • Figure 2 is a view of the underside of the assembly of Figure 1 ;
  • Figure 3 is a perspective view of the exposed surface of an assembly of a further embodiment of the present invention showing first and second regions of filaments;
  • Figure 4 is a representation of filaments in an assembly according a still further embodiment of the assembly of the present invention.
  • Figure 5 is a cross-sectional representation of an assembly of a further embodiment of the present invention.
  • FIG. 1 there is shown a plan view of a single panel of the rface assembly of one embodiment of the present invention, generally indicated
  • the panel 2 is generally square having sides of approximately 1 m in length. Other shapes and sizes of panel may also be employed, as required to form the desired artificial ski slope installation.
  • the panel 2 is formed with a substrate layer 4 of a flexible plastic material.
  • the substrate layer 4 is provided with a plurality of elongate drainage slots 6 therein, arranged in a generally square pattern.
  • the substrate layer 4 is further provided with a plurality of fixtures 8 along each edge portion, by which the panel 2 may be joined to an adjacent panel, for example using plastic cable ties or the like.
  • a plurality of filaments extend from the upper surface of the substrate layer.
  • the filaments are arranged in regions comprising one or more tufts extending through holes punched in the substrate layer.
  • the tufts of filaments are additionally secured to the substrate layer 4 by means of plastic-coated, stainless steel staples.
  • the underside of the panel 2 of Figure 1 is shown in Figure 2.
  • the underside is provided with a plurality of grooved recesses 10, to allow the panel 2 to lie flat on a supporting surface.
  • One arrangement of filaments in the surface assembly is shown in perspective view in Figure 3.
  • the arrangement comprises filaments 20 of a first length in a first region 22.
  • the first region is generally square, as shown in Figure 3.
  • the filaments of the first region 22 are of substantially the same length.
  • the assembly further comprises filaments 24 of a second length in a second region 26.
  • the second region 26 is a rectangular grid of substantially perpendicular portions 26a, 26b surrounding a plurality of first regions 22.
  • the arrangement is such that the first regions 22 can be regarded as recessed or concave regions within the grid of the second region 26.
  • the filaments 20 in the first region are about 12 mm in length.
  • the filaments in the second region are about 25 mm in length.
  • the boundary between the first and second regions 22, 26 is discontinuous and provides an abrupt change in the exposed surface.
  • a skier or the like moving in a straight or substantially straight line over the surface of the assembly of Figure 3 is in contact with the filaments 24 of the second region.
  • the skis of the skier contact the lower filaments of the first region, providing increased grip and friction for the turn and more closely emulating making a similar turn in snow.
  • FIG 4 there is shown a representation of a further embodiment of a surface assembly 102 of this invention having an alternative arrangement of filaments.
  • the surface assembly 102 comprises a plurality of first regions 104 having filaments 106 arranged to form a concave exposed surface.
  • the assembly further comprises a plurality of second regions 108, having filaments 1 10 arranged to form a convex exposed surface.
  • the first and second regions are arranged in an alternating pattern. The boundary between adjacent first and second regions provides a substantially smooth exposed surface for a skier, snowboarder or the like.
  • a skier or the like moving in a straight or substantially straight line over the surface of the assembly of Figure 4 is in contact with the filaments 1 10 of the second region.
  • the skis of the skier contact the lower filaments of the first regions 104, providing increased grip and friction for the turn and more closely emulating making a similar turn in snow.
  • FIG. 5 there is shown a side, sectional view of a further embodiment of a surface assembly 202 of the present invention.
  • the surface assembly 202 comprises a substrate layer 204 to which are secured tufts of filaments in the manner described hereinbefore.
  • a first region 206 of filaments comprises filaments 208a having a first, shorter length, for example about 12 mm.
  • a second region 210 of filaments comprises filaments 208b having a second, longer length, for example about 25 mm.
  • Filaments 208c having a third length, between the first and second lengths, in particular about 17 mm, are disposed in each of the first and second regions 206, 210 adjacent the boundary between the two regions. In this way, the exposed or distal ends of the filaments 208a, 208b, 208c form a
  • substantially continuous surface having a generally smooth form.
  • the length, number and spacing of the filaments 208a, 208b, 208c in the assembly 202 may be varied, to vary the precise contour of the exposed surface.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

La présente invention concerne un ensemble surface destiné à une utilisation dans une piste de neige artificielle, par exemple une piste de ski artificielle. L'ensemble surface comprend une couche substrat (4) comportant une pluralité de filaments flexibles (20, 24) en saillie depuis une surface principale de la couche, ladite surface principale comprenant une première région pourvue de filaments dressés d'une première longueur (20) ; une seconde région adjacente à la première région, pourvue de filaments dressés d'une seconde longueur (24), la seconde longueur étant supérieure à la première. La présente invention concerne également une installation de piste de neige artificielle comprenant l'ensemble surface.
PCT/GB2011/052387 2010-12-07 2011-12-02 Ensemble surface destiné à une utilisation dans une piste de ski artificielle Ceased WO2012076864A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1020678.7 2010-12-07
GB201020678A GB201020678D0 (en) 2010-12-07 2010-12-07 A 'dry' snowsports slope surface

Publications (1)

Publication Number Publication Date
WO2012076864A1 true WO2012076864A1 (fr) 2012-06-14

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ID=43531559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2011/052387 Ceased WO2012076864A1 (fr) 2010-12-07 2011-12-02 Ensemble surface destiné à une utilisation dans une piste de ski artificielle

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GB (1) GB201020678D0 (fr)
WO (1) WO2012076864A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017211981A1 (fr) * 2016-06-10 2017-12-14 Beaulieu International Group Nv Gazon artificiel
WO2018058259A1 (fr) * 2016-09-30 2018-04-05 Lendenmann Charles Tapis synthétique imitant le gazon pour surfaces de sport d'extérieur, procédé de fabrication et utilisation de celui-ci

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3350092A (en) * 1964-12-14 1967-10-31 Maki Isao Structural elements for an artificial ski slide
US3443493A (en) * 1968-05-02 1969-05-13 Francis F Del Piano Plastic ski track
GB1418458A (en) * 1971-11-19 1975-12-17 Metriframe Structures Ltd Surfaces for use as an artificial ski slope
US3959542A (en) 1974-07-12 1976-05-25 Livermore Paul A Artificial ski matting
DE3205191A1 (de) * 1981-03-13 1982-09-23 VEB Kunststoffverarbeitungsindustrie Sebnitz, 8360 Sebnitz Skimatte
EP1561862A1 (fr) * 2004-02-05 2005-08-10 Marc Struyf Elément de piste artificielle de glisse et piste artificielle de glisse comprenant un tel élément
US20060068157A1 (en) 2002-11-06 2006-03-30 Nike Land Securities Ltd. Artificial ski slope surface

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3350092A (en) * 1964-12-14 1967-10-31 Maki Isao Structural elements for an artificial ski slide
US3443493A (en) * 1968-05-02 1969-05-13 Francis F Del Piano Plastic ski track
GB1418458A (en) * 1971-11-19 1975-12-17 Metriframe Structures Ltd Surfaces for use as an artificial ski slope
US3959542A (en) 1974-07-12 1976-05-25 Livermore Paul A Artificial ski matting
DE3205191A1 (de) * 1981-03-13 1982-09-23 VEB Kunststoffverarbeitungsindustrie Sebnitz, 8360 Sebnitz Skimatte
US20060068157A1 (en) 2002-11-06 2006-03-30 Nike Land Securities Ltd. Artificial ski slope surface
EP1561862A1 (fr) * 2004-02-05 2005-08-10 Marc Struyf Elément de piste artificielle de glisse et piste artificielle de glisse comprenant un tel élément

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017211981A1 (fr) * 2016-06-10 2017-12-14 Beaulieu International Group Nv Gazon artificiel
WO2018058259A1 (fr) * 2016-09-30 2018-04-05 Lendenmann Charles Tapis synthétique imitant le gazon pour surfaces de sport d'extérieur, procédé de fabrication et utilisation de celui-ci

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