WO2013041767A1 - Elément de glissement pour l'utilisation estivale de pentes - Google Patents

Elément de glissement pour l'utilisation estivale de pentes Download PDF

Info

Publication number
WO2013041767A1
WO2013041767A1 PCT/FI2012/050902 FI2012050902W WO2013041767A1 WO 2013041767 A1 WO2013041767 A1 WO 2013041767A1 FI 2012050902 W FI2012050902 W FI 2012050902W WO 2013041767 A1 WO2013041767 A1 WO 2013041767A1
Authority
WO
WIPO (PCT)
Prior art keywords
sliding
sliding element
yarn
sheet
element according
Prior art date
Application number
PCT/FI2012/050902
Other languages
English (en)
Inventor
Pasi Kirkkala
Mauno Kirkkala
Original Assignee
Kirkkala Oy
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 Kirkkala Oy filed Critical Kirkkala Oy
Priority to EP12833370.5A priority Critical patent/EP2783046A4/fr
Priority to RU2014114991/12A priority patent/RU2014114991A/ru
Publication of WO2013041767A1 publication Critical patent/WO2013041767A1/fr

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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/10—Ice-skating or roller-skating rinks; Slopes or trails for skiing, ski-jumping or tobogganing
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/04—Mats or carpets for courts
    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2201/00—Use of skates, skis, roller-skates, snowboards and courts
    • A63C2201/04—Ski jumping

Definitions

  • the present invention relates to a sliding element for the summer use of slopes, for example, ski-jumping slopes, which sliding element includes a sliding surface formed of one or several yarn layers attached together, in which sliding element each yarn layer is formed of individual fibres.
  • the sliding element includes a plastic mat, which is formed of one or several plastic fibres layers on top of each other and attached together with the aid of a base part at one end.
  • plastic-fibre layer must be sufficiently thick to be able to meet international standards.
  • the plastic must be UV-protected against the sun' s ultraviolet radiation, so that it will last outdoors. It is expensive to manufacture a sufficiently thick UV-protected plastic-fibre layer.
  • the invention is intended to create a sliding element for the summer use of slopes, which is cheaper to manufacture and has better properties than sliding elements of the prior art.
  • the characteristic features of the invention appear in the accompanying Claim 1.
  • the sliding element for the summer use of slopes, for example ski-jumping slopes, in which the sliding surface is formed of at least two different material layers.
  • the sliding element includes a sliding surface formed from one or several yarn layers attached together, in which sliding layer each yarn layer is formed of individual yarns.
  • the surface layer can be manufactured from better raw materials, without increasing the material costs.
  • the bottom layer can, for its part, be manufactured from a considerably cheaper material.
  • the yarn layer is preferably a plastic yarn layer.
  • the sliding element preferably includes a bottom sheet attached under the sliding surface.
  • the bottom sheet prevents the ground vegetation from penetrating through the sliding element.
  • at least some of the yarns consist of at least two layers of material on top of each other relative to the radius of the cross-section of the yarn.
  • the fibre then includes preferably at least a core and a surface layer.
  • the core can be of a cheaper material than the surface layer.
  • the different material layers can have different properties.
  • only the surface layer is UV protected and materials that are more wear-resistant and are, in turn, more expensive, can be used in it.
  • the sliding element includes at least two yarn layers set on top of each other, which are of mutually differing materials.
  • the yarn layer against the bottom sheet can be of a cheaper material that the yarn layer on the surface of the sliding surface.
  • the bottom sheet includes ribs set in the longitudinal direction of the sliding element, which rise towards the sliding surface, and the sliding element further includes a sheet part forming the upper part of the suspension element, arranged on top of the ribs and partly on top of the sliding surface.
  • the attachment point of the sliding surface is made more even than the prior art, so that the slope will feel smoother to one descending it.
  • the bottom sheet and sheet part are preferably formed by fold ⁇ ing a bottom-sheet blank double.
  • the bottom sheet and the suspension element can be formed from a single uniform part, so that the totality has excellent strength.
  • the bottom sheet includes ribs in the longitudinal direction of the bottom sheet, for holding the sliding surface in place.
  • the ribs prevent the yarns from moving to the side under the weight of the person descending.
  • the sheet part includes a first fold for folding the sheet part from a base-sheet blank, a second fold for folding the sheet part on top of the rising ribs, as well as a third fold for folding the sheet part partly on top of the sliding surface.
  • the suspension element can be formed without having to attach separate pieces to each other.
  • the rising ribs are preferably at the end of the sliding sur- face.
  • the sheet part takes up a gently sloping angle, which helps to make a slope even to descend.
  • the sliding element By means of the sliding element according to the invention, the use of raw material and the weight of the surfacing can be minimized.
  • the sliding element is more versatile than sliding elements according to the prior art, as with the aid of different types of surface layers, it is easy to manufacture sliding elements with different properties for different parts of a slope.
  • the nose of the jump can be of a material with slippier sliding properties and the end of the descending part can, for its part, be of a material that is slightly slower than generally on the descending part.
  • Figure 1 shows an axonometric view of the bottom sheet of a sliding element according to one embodiment of to the invention, depicted without the sliding surface
  • Figure 2a shows an axonometric view of the suspension element of a sliding element according to one embodiment of the invention
  • Figure 2b shows a side view of the embodiment of Figure 2a
  • Figure 3 shows a more detailed axonometric view of the yarns used in the sliding element according to one embodiment of the invention
  • Figure 4 shows a more detailed axonometric view of one double-layered yarn.
  • Figures 1 and 2 show a sliding element according to one embodiment, in which the sliding surface is attached to the bottom sheet with the aid of a suspension element folded from the bottom sheet.
  • the sliding element according to the invention can also be according to the prior art in terms df the attachment of the sliding surface.
  • Figure 1 shows the bottom-sheet blank 16' of the sliding element according to the invention, prior to the attachment of the sliding surface and the folding of the sheet part 20 of the bottom-sheet blank 16'.
  • the bottom-sheet blank 16' preferably includes longitudinal ribs 22, rising ribs 24, a sheet 34, and two folding flat surfaces 26 and a second flat surface 28 of the sheet part 20.
  • the sheet part 20 is open in a position, in which the transverse folding grooves 36 of the sheet part 20 are clearly visible.
  • Figure 2a shows a sliding element 10 according to the invention.
  • the sliding element 10 includes a sliding surface 12 formed of one or several yarn layers 14 attached together and a bottom sheet 16, essentially the size in surface area of the sliding element 10, attached under the sliding surface 12.
  • the purpose of the longitudinal ribs 22 is to hold the yarn layer of the sliding surface in place in the lateral direction of the bottom sheet 16. Thanks to the longitudinal ribs 22, the yarn layer 14 of Figure 2a will remain in place laterally, without the individual yarns 32 of the yarn layer 14 moving to the side under the weight of someone descending. This means that a slope can be descended without the skis of the skier making contact with the bottom sheet.
  • the ribs are preferably lower than the thickness of the sliding surface, so that the ribs will not be able to touch the bottom of a ski.
  • the width of the ribs is only in the order of a few millimetres, so that openings will not appear in the yarn layer at the location of the ribs.
  • longitudinal ribs there can also be pimples set in line in the bottom sheet of the sliding element. Stiffening ribs can also be manufactured in the undersurface of the bottom sheet, which lies against the ground. Despite the ribs, even when packed the sliding element does not require extra storage or transport space, unlike existing safety sheets or wide- bottomed sliding elements.
  • the sheet part 20 When the sheet part 20 is folded into the locking position of the sliding surface, the sheet part 20 is folded along the folding groove 36 close to the rising ribs 24, on top of the rising ribs 24.
  • the folding grooves can be made in the bottom- sheet blank, for example, by milling, or during moulding, if the bottom-sheet blank is plastic.
  • the folding flat surface 26 close to the rising ribs 24 settles onto the surface of the sheet 34 between the folding groove 36 and the rising ribs 24, the middle folding groove 36 settles onto the position of the lower edge 38 of the rising ribs 24, and the second flat surface 28 settles on top of the rising ribs 24.
  • the sheet part 20 forms the upper part of the suspension element 18 according to Figure 2a, which holds the sliding surface 12 formed of yarn layers 14 in place on top of the bottom sheet 16.
  • the sheet part 20 is formed into the upper part of the bottom sheet in the operating position, so that it secures the
  • the suspension element 18 is formed of the sheet part 20 belonging to one end 30 of the bottom-sheet blank 16' and the bottom sheet 16 of Figure 1.
  • the end 41 of the sliding surface 12 remains under the folding flat surface 26 of the suspension element 18.
  • the sliding surface can be finally attached to the suspension element by, for example, running a thin layer of moulding compound between the folding flat surface and the
  • the sliding element 10 as a totality includes a sliding surface 12 formed from one or several yarn layers 14 attached together, a bottom sheet 16, of a surface-area size essentially that of the sliding element 10, attached under the sliding surface 12, and a suspension element 18 for attaching the sliding surface
  • a surface-area size essentially that of the sliding element 10 refers to the fact that the surface area of the bottom sheet 16 is at least the size of the surface area of the entire sliding surface 12.
  • the bottom sheet is preferably manufactured as a unified sheet, which extends from under the sliding surface as far as the suspension element.
  • Figure 2a also shows the attachment holes 42 of the sliding element 10, with the aid of which the sliding element 10 is attached to the slope.
  • the sliding element 10 shown in Figure 2a has been cut off short, but in reality the sliding element 10 can have a length of 1 - 2 m.
  • the width of the sliding element can be 0.4 - 1.0 m and its thickness 0.3 - 10 cm.
  • the thickness of the sliding surface 12 can be, for example, 12 mm and the thickness of the bottom-sheet blank 1 - 10 mm.
  • the size of the sliding element can vary according to where it is used.
  • the second flat surface 28 is given a gentle angle, so that a skier can descend the slope without bumps caused by the suspension element 18.
  • the word essentially refers to the fact that the rising ribs 24 are at a distance of the folding flat surface 26 from the folding groove 36 closest to the rising ribs 24.
  • the rising ribs 24 can be longer that the rising ribs according to one embodiment according to Figures 1 and 2b, in which case their rising angle will be made even smaller, which will even the sliding element even further.
  • the rising ribs 24 are at least the height of the thickness of the sliding surface 12, so that the folding flat surface 26 of the sheet part 20 will be brought on top of the sliding surface 12.
  • the second flat surface 28 can be at least the length of the rising ribs 24, so that the folding flat surface 26 can be folded on top of the sliding surface 12.
  • the sliding element can be manufactured, for example, from an extrusion-moulded base blank, or from a bottom sheet equipped with longitudinal ribs manufactured directly in its shape, which is combined with the sliding surface.
  • the sliding surface can be manufactured from extrusion-moulded yarns, which are cut to a suitable length and melted together at one end to form a yarn layer.
  • a thin layer of molten moulding compound is extruded on top of the melted end of the sliding surface.
  • the bottom-sheet blank is heated to a welding temperature, after which it is folded at the sheet part to form a hollow-core structure.
  • the term hollow-core structure refers to the fact that an empty space for the sliding surface remains in the structure of the suspension element, so that the suspension element is not solid, as it is in sliding elements according to the prior art.
  • the molten end of the sliding surface is pushed inside the hollow-core-structure sheet part and the sheet part is pressed by cooled rollers, so that the bottom sheet and the sliding surface are welded to each other, thus forming a finished sliding element.
  • the suspension element is durable, as it is supported by the rising ribs .
  • Sliding elements can be manufactured as a continuous band, in which case a cutter is used to cut the sliding elements into suitable lengths.
  • the sliding elements can be manufactured more quickly than sliding elements according to the prior art, as, thanks to the sheet part, the sliding element does not contain large masses of plastic to be cooled, unlike the solid sliding elements according to the prior art.
  • the sliding surface can be manufac- tured alternatively in two different ways from at least two different material layers.
  • the first alternative is to manufacture at least some of the yarns of the yarn layer by extruding two different materials to form layers on top of each other in the direction of the radius of the cross-section of the yarn.
  • a second alternative is, for its part, to manufacture the sliding surface from two yarn layers on top of each other, manufactured from different materials. This means that the yarn layer against the bottom sheet can consist of different yarns to the yarn layer located on the surface of the sliding ele ⁇ ment. More than two material layers can also be used in the sliding surface.
  • Figure 3 shows the structure of the grooved yarns 32 preferably used in the sliding element.
  • the first yarn 44 shows a non- grooved and solid yarn according to the prior art.
  • the first yarn 44 shows a non-grooved and solid yarn according to the prior art.
  • Grooves can be made in the yarns used in the sliding element in the manner of the second yarn 46, or two thin yarns like the first yarn 44 can be combined to form a third yarn 48.
  • the fourth yarn 50 show an alternative, in which the yard is grooved in many different directions.
  • the yarns can be waved and can be solid in structure or equipped with one or several holes.
  • the fifth yarn 52 is an example of a yarn model waved in two directions.
  • the yarns can preferably be waved in two directions, instead of the waving made in one direction according to the prior art, so that the yarns will support each other better, to form a more unified yarn layer. It is also preferable to give the cross- sections of the yarns a shape, for example, like that of a four-leaved clover, in which the point of contact between a ski and a yarn will be distributed over several points in the yarn, and thus the surface pressure at the points of contact will remain small. Thanks to the shaping, grooves are formed in the surface of the yarn, by means of which the irrigation water used periodically in a slope will remain longer on the surface of the yarn. Water flows rapidly off traditional yarn.
  • the grooved yarns 32 have cross-section shaped like a four-leaved clover and the grooved yarns 32 are waved in two directions, in order to form a more unified yarn layer 14.
  • Figure 4 shows one embodiment, in which the yarn is manufactured from two material layers on top of each other relative to the radius of the yarn. In that case, only the yarns of the outermost yarn layer are coloured and UV-protected.
  • Each indi- vidual yarn can consist of at least two material layers on top of each other relative to the radius of the yarn 32.
  • the material layers are preferably of different types to each other.
  • the yarn 32 can include at least a core 62 and a surface layer 64, which can be, for example, a UV- protected layer or a coloured layer.
  • the properties of the sliding element can be influenced by selecting a raw-material grade suitable for the purpose at the time for the outer layer of the yarn. For example, in the acceleration section of a ski- jumping slope, plastic grades that reduce friction between the bottom of the ski and the yarns of the sliding element, and which also better withstand the increase in temperature caused by the friction, can be used in the surface of the yarns.
  • the yarns used are preferably plastic yarns, the plastic of which can be, for example, recycled plastic.
  • the bottom-sheet blank of the sliding element according to the invention can be manufactured from, for example, plastic or a similar material.
  • the sliding element according to the invention can be used advantageously for surfacing a ski-jumping slope for the summer season.
  • the sliding element can also be used for other purposes, for example, surfacing slopes for slalom skiing or snow- boarding, or for surfacing ski trails.
  • the sliding element can also be used for surfacing sledge and toboggan slopes for summer ⁇ use .

Landscapes

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

Abstract

L'invention porte sur un élément de glissement pour l'utilisation estivale de pentes, par exemple des pentes de saut à ski, lequel élément de glissement (10) comprend une surface de glissement (12) constituée par une ou plusieurs couches de fils (14) fixées les unes aux autres, dans lequel élément de glissement (10) chaque couche de fils (14) est constituée par des fibres individuelles (32). La surface de glissement (12) est constituée par au moins deux couches de matériaux différents.
PCT/FI2012/050902 2011-09-22 2012-09-18 Elément de glissement pour l'utilisation estivale de pentes WO2013041767A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12833370.5A EP2783046A4 (fr) 2011-09-22 2012-09-18 Elément de glissement pour l'utilisation estivale de pentes
RU2014114991/12A RU2014114991A (ru) 2011-09-22 2012-09-18 Элемент скольжения для летнего использования склонов

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20115927 2011-09-22
FI20115927A FI123218B (fi) 2011-09-22 2011-09-22 Liukuelementti mäkien kesäkäyttöä varten

Publications (1)

Publication Number Publication Date
WO2013041767A1 true WO2013041767A1 (fr) 2013-03-28

Family

ID=44718832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2012/050902 WO2013041767A1 (fr) 2011-09-22 2012-09-18 Elément de glissement pour l'utilisation estivale de pentes

Country Status (4)

Country Link
EP (1) EP2783046A4 (fr)
FI (1) FI123218B (fr)
RU (1) RU2014114991A (fr)
WO (1) WO2013041767A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2553305R1 (es) * 2014-06-04 2016-02-10 Felipe BECKER CASTILLO Pista de deslizamiento prevista para una atracción de deslizamiento

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047088B (de) * 1955-04-20 1958-12-18 Hans Renner Als Schnee-Ersatz dienender Gleitbelag fuer Wintersportanlagen
FI71065B (fi) 1985-01-02 1986-08-14 Finn Trump Oy Glidelement foer hoppbackar vid sommarbruk
GB2223414A (en) 1988-09-23 1990-04-11 Bonar Textiles Ltd Synthetic ski slope material
WO1993018827A1 (fr) * 1992-03-17 1993-09-30 Sajakorpi Oy Element de surface pour la construction d'une surface de glisse
JPH10280311A (ja) * 1997-03-31 1998-10-20 Uchida Kogyo Kk 滑走用人工芝
JP2001198255A (ja) 2000-01-20 2001-07-24 Tokyo Line Kk 滑走面用安全板並びに製法とゲレンデ
FR2821091A1 (fr) 2001-02-16 2002-08-23 Schappe Sa Fil hybride thermostable renforce

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047088B (de) * 1955-04-20 1958-12-18 Hans Renner Als Schnee-Ersatz dienender Gleitbelag fuer Wintersportanlagen
FI71065B (fi) 1985-01-02 1986-08-14 Finn Trump Oy Glidelement foer hoppbackar vid sommarbruk
GB2223414A (en) 1988-09-23 1990-04-11 Bonar Textiles Ltd Synthetic ski slope material
WO1993018827A1 (fr) * 1992-03-17 1993-09-30 Sajakorpi Oy Element de surface pour la construction d'une surface de glisse
JPH10280311A (ja) * 1997-03-31 1998-10-20 Uchida Kogyo Kk 滑走用人工芝
JP2001198255A (ja) 2000-01-20 2001-07-24 Tokyo Line Kk 滑走面用安全板並びに製法とゲレンデ
FR2821091A1 (fr) 2001-02-16 2002-08-23 Schappe Sa Fil hybride thermostable renforce

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2783046A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2553305R1 (es) * 2014-06-04 2016-02-10 Felipe BECKER CASTILLO Pista de deslizamiento prevista para una atracción de deslizamiento

Also Published As

Publication number Publication date
FI20115927A0 (fi) 2011-09-22
EP2783046A1 (fr) 2014-10-01
RU2014114991A (ru) 2015-10-27
FI123218B (fi) 2012-12-31
EP2783046A4 (fr) 2015-08-26

Similar Documents

Publication Publication Date Title
ES2674721T3 (es) Base para un sistema de césped
US7896365B2 (en) Articulated two-piece snowboard with rigid, flexible connector
US20010019198A1 (en) Snow-gliding apparatus
USRE36586E (en) Shaped ski of non-rectangular cross section
JP5943225B2 (ja) スキージャンプ用遊戯設備
US9308432B1 (en) Dual-edged snowboard and snow skis
US20110272920A1 (en) Gliding board
CN102131554B (zh) 用于冰鞋的改进的框架结构
CN103167897A (zh) 羽毛球用人造羽毛及羽毛球
EP2783046A1 (fr) Elément de glissement pour l'utilisation estivale de pentes
WO2013041768A1 (fr) Elément de glissement pour l'utilisation estivale de pentes
JP3103025U (ja) 滑走用あるいは転動用の板材
US20020121765A1 (en) Snow-gliding apparatus
US8579301B2 (en) Articulated two-piece snowboard with rigid, flexible connector
DE2824997A1 (de) Schnee-balancebrett
CN202497687U (zh) 滑板
US5921564A (en) Snow board
EP3088061A1 (fr) Châssis de patin, rollerski comprenant ledit châssis et procédé de fabrication de châssis de patin
RU77788U1 (ru) Доска для скейта
CN207680008U (zh) 折叠式滑雪板
ITTO20030007U1 (it) Elemento per la composizione di una pista di scorrimento di palline del tipo a caduta.
EP1691903A1 (fr) Ame de ski
CN204293842U (zh) 一种滑草漂流综合游乐设施
WO2016207470A1 (fr) Ski de fond et procédé de fabrication correspondant
AU635564B2 (en) Surf craft

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12833370

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2012833370

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2012833370

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2014114991

Country of ref document: RU

Kind code of ref document: A