EP1547654B1 - Ski - Google Patents

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Publication number
EP1547654B1
EP1547654B1 EP04300874A EP04300874A EP1547654B1 EP 1547654 B1 EP1547654 B1 EP 1547654B1 EP 04300874 A EP04300874 A EP 04300874A EP 04300874 A EP04300874 A EP 04300874A EP 1547654 B1 EP1547654 B1 EP 1547654B1
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EP
European Patent Office
Prior art keywords
ski
millimeters
thickness
max
length
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.)
Expired - Fee Related
Application number
EP04300874A
Other languages
English (en)
French (fr)
Other versions
EP1547654B8 (de
EP1547654A1 (de
Inventor
Hervé SPANIER
Fanny Caspar
Claudia Stern
Fabrice Magoni
Jean-Paul Alussi
Stéphane Bernard
Marc Rene
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.)
Skis Rossignol SA
Skis Dynastar SA
Original Assignee
Skis Rossignol SA
Skis Dynastar SA
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 Skis Rossignol SA, Skis Dynastar SA filed Critical Skis Rossignol SA
Publication of EP1547654A1 publication Critical patent/EP1547654A1/de
Application granted granted Critical
Publication of EP1547654B1 publication Critical patent/EP1547654B1/de
Publication of EP1547654B8 publication Critical patent/EP1547654B8/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/025—Short skis

Definitions

  • the invention relates to the field of sliding sports and more particularly downhill skiing. It concerns more specifically a ski architecture more specifically dedicated to skiing by children.
  • the invention seeks to optimize different dimensional parameters of the ski to address the learning of sliding by young children, combining a certain ease with stability.
  • skis used by children are of course small.
  • the invention relates to the smallest ski sizes, typically less than 110 centimeters in length. Because of their low weight and inexperience, children need skis that have great flexibility and stability. Stability can be achieved by widening the skis to reduce the ability to swing from one edge to the other.
  • the skis for children are relatively flexible, to facilitate the bending, that is to say the curve of the ski to make a turn, bending which usually results in weight and acceleration.
  • the stiffness of a ski is defined by its structure, that is to say by the number and the mechanical properties of the internal reinforcements embedded in the ski, and the positioning of these reinforcements with respect to the neutral fiber, as well as by the dimensional properties of the board, that is, the thickness and width of the ski.
  • the stiffness is substantially proportional to the width of the upper reinforcement, and varies with the square of the distance of this reinforcement relative to the neutral fiber, corresponding substantially to the median thickness of the ski.
  • the solution of reducing the thickness of the ski is limited, since a minimum thickness must be respected to allow anchoring of the elements of the binding.
  • the ISO 8364 standard requires that the skis must have a sufficient thickness to allow holes of 7.5 millimeters deep for the establishment of fastening screws fasteners.
  • US-A-2001 0035630 discloses such a ski having at its zone of pad a region of lesser thickness.
  • the object of the invention is to provide a ski which has increased stability, and therefore has a greater width than existing skis, while maintaining a stiffness sufficiently low to allow the bending of the ski by a child. This compromise must also respect the minimum thickness conditions imposed by the standardization aspects relating to the installation of the fasteners.
  • the invention therefore relates to a short ski, less than 110 centimeters in length, intended for skiing by children.
  • this ski comprises, at its skid zone, a region of lesser thickness, limited at the front and at the rear by regions of maximum thickness, able to receive each the elements of a binding of security.
  • the ski has at the level of the pad a recessed area between the abutment and the heel of the binding.
  • This zone of lesser thickness makes it possible to reduce the stiffness of the ski at least in its central part, while remaining compatible with standardized requirements in terms of setting up the bindings.
  • the stiffness of the ski is characterized by a general flexibility that is significantly higher than that seen on children's skis produced to date.
  • the general flexibility is defined in a standardized way as being the arrow under deformation of a force of 20 decanewtons, applied to the upper surface of the ski, midway between two support points located respectively at the level of the lines of front and rear contact.
  • this general flexibility is between The p 3 H max 2 ⁇ 10 - 5 and The p 3 H max 2 ⁇ 2.
  • L p is the load length, defined between the front and rear contact lines
  • H max is the maximum thickness of the ski, both expressed in millimeters.
  • the stiffness is satisfactory when the difference in thickness between the region of lesser thickness forming the characteristic, and the maximum thickness H max is between 1 and 5 millimeters and preferably close to 1.5 millimeters.
  • the maximum thickness of the ski is understood from a structural point of view, that is to say taking into account the thickness of the zones that have a predominant influence on the overall stiffness of the ski.
  • this maximum thickness is calculated by disregarding any protuberances or protruding zones for essentially aesthetic purpose and without major influence on the stiffness of the board.
  • the maximum thickness of the ski (H max ) is advantageously between 10 and 14 millimeters, and is preferably in the vicinity of 11 millimeters.
  • the dimensions of the characteristic hollow zone are such that this region of lesser thickness extends over a length of between 80 and 200 millimeters.
  • the length of this zone is measured by the distance between the thickest points located directly in front of and behind the recessed zone.
  • the maximum thickness point closest to the hollow shall be taken into account.
  • the invention relates to skis for use by children, which therefore have a total length L t reduced, and less than 110 centimeters.
  • Such a ski (1) as illustrated in figure 1 has in its shoe region (2) a hollow region (3) of smaller thickness, delimited at the front and rear by zones (4, 5) of greater thickness. These zones (4, 5) are arranged to receive the abutment (6) and the heel (7) of the attachment, by means of screws (8) placed in holes (9) provided for this purpose.
  • the areas of greater thickness (4, 5) have a thickness H max which is between 10 and 14 millimeters and preferably close to 11 millimeters.
  • the zone of maximum thickness may extend over a certain fraction of the length of the ski, and in particular in the region that receives the elements of the binding.
  • these areas (4, 5) maximum thickness may include reinforcements (10, 11) to be traversed by the mounting screws (8) of the attachment to improve the anchoring thereof.
  • the region (3) between the two elements of the fastener (6, 7) has a reduced thickness, whose value H min is less than the maximum thickness value H max of 1 to 5 millimeters, and preferably 1, 5 millimeters.
  • the length L c of the recessed zone (3) is defined between the most forward point maximum thickness of the rear zone (5), and the rearmost point of maximum thickness of the front zone (4).
  • the slope fractures (14, 15) between the characteristic hollow zone (3) and the zones of greater thickness (4, 5) may be variable depending on the reinforcements included in the structure of the ski, and the constraints of manufacture and especially by molding.
  • the ski (1) has a general flexibility that is in a specific range, corresponding to skis much more flexible than the existing skis in equivalent ranges, while having a width l pad at the level of the pad which is instead higher and typically between 73 and 85 millimeters.
  • this flexibility Sg is measured in a standardized manner, by arranging the ski on two bearing points (20, 21), arranged at the level of the front and rear contact lines L CAV , L CAR .
  • the distance between these two front and rear contact lines is defined as the bearing length L P.
  • Halfway between these two points (20, 21), the ski receives a vertical force F which for children's skis is normalized to 20 decanewtons.
  • the flexibility Sg is defined as being the vertical displacement of the exercise point of the force F. According to the invention, this flexibility S g is between The p 3 H max 2 x 10 -5 and The p 3 H max 2 x 2.10 -5 in which the length and thickness are measured in millimeters.
  • This flexibility is to be compared to values of about 20 millimeters, corresponding to those measured on existing skis.
  • the characteristic hollow area it is possible to widen the ski to increase its stability.
  • We can thus as illustrated in the figure 1 define a heel width l heel of 83 mm, a width l pad of 75 mm, a width l spatula of 95 mm.
  • the ski according to the invention has the advantage of simultaneously having a stability and flexibility far superior to the existing ski, while complying with the requirements of normalizations.

Landscapes

  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Lubricants (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (5)

  1. Ski, insbesondere zum Skifahren für Kinder, umfassend auf Höhe des Skimittenbereichs (2) einen Bereich (3) kleinerer Dicke, der vorne und hinten durch Bereiche (4, 5) maximaler Dicke begrenzt ist, die jeweils zur Aufnahme der Elemente (6, 17) einer Sicherheitsbindung geeignet sind, wobei dieser Ski eine allgemeine Biegsamkeit (SG) aufweist, dadurch gekennzeichnet, dass eine Durchbiegung unter Verformung bei einer Kraft F von 20 Dekanewton, die auf die Oberseite des Skis in der Mitte zwischen zwei Auflagepunkten ausgeübt wird, die auf Höhe der vorderen Kontaktlinie (LCAV) bzw. hinteren Kontaktlinie (LCAR) gelegen sind, zwischen L p 3 H max 2 × 10 - 5 ⁢ und ⁢ L p 3 H max 2 × 2. ⁢ 10 - 5
    Figure imgb0006
     beträgt, ausgedrückt in Millimeter, worin Lp die zwischen der vorderen und hinteren Kontaktlinie definierte tragende Länge und Hmax die maximale Dicke des Skis, ausgedrückt in Millimetern, ist, und dass der Ski von einer Länge LT von weniger als 110 mm ist.
  2. Ski nach Anspruch 1, dadurch gekennzeichnet, dass die Dickendifferenz zwischen dem Bereich kleinerer Dicke Hmin und der maximalen Dicke Hmax zwischen 1 und 5 Millimeter und vorzugsweise etwa 1,5 Millimeter beträgt.
  3. Ski nach Anspruch 1, dadurch gekennzeichnet, dass Hmax zwischen 10 und 14 und vorzugsweise etwa 11 Millimeter beträgt.
  4. Kurzski nach Anspruch 1, dadurch gekennzeichnet, dass der Bereich kleinerer Dicke (3) sich über eine Länge LC zwischen 80 und 200 Millimeter erstreckt.
  5. Ski nach Anspruch 1, dadurch gekennzeichnet, dass die maximale Breite in der Skimitte (ℓskimitte) zwischen 73 und 85 Millimeter beträgt.
EP04300874A 2003-12-24 2004-12-10 Ski Expired - Fee Related EP1547654B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0351197A FR2864451B1 (fr) 2003-12-24 2003-12-24 Ski
FR0351197 2003-12-24

Publications (3)

Publication Number Publication Date
EP1547654A1 EP1547654A1 (de) 2005-06-29
EP1547654B1 true EP1547654B1 (de) 2008-04-16
EP1547654B8 EP1547654B8 (de) 2008-07-02

Family

ID=34531408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04300874A Expired - Fee Related EP1547654B8 (de) 2003-12-24 2004-12-10 Ski

Country Status (5)

Country Link
US (1) US7083183B2 (de)
EP (1) EP1547654B8 (de)
AT (1) ATE392237T1 (de)
DE (1) DE602004013110T2 (de)
FR (1) FR2864451B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2896424B1 (fr) * 2006-01-25 2008-04-18 Salomon Sa Planche de glisse ou de roulage
FR2908665B1 (fr) * 2006-11-22 2009-03-20 Salomon Sa Ski
FR2939323B1 (fr) * 2008-12-08 2011-03-25 Salomon Sas Ski alpin avec flexion controlee
AT13391U1 (de) * 2012-12-20 2013-12-15 Fischer Sports Gmbh Ski, insbesondere Tourenski
SI24530A (sl) 2013-11-15 2015-05-29 Elan, D.O.O. Kratka smučka
JP2017148502A (ja) * 2017-01-23 2017-08-31 公裕 土江 スキー板
USD967275S1 (en) * 2020-07-10 2022-10-18 Yvolve Sports Ltd. Scooter with front plate

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007948A (en) 1975-05-13 1977-02-15 Allied Chemical Corporation Release for safety belt tension-relieving apparatus
US4007946A (en) * 1976-01-12 1977-02-15 John Jeffery Sarver Short ski
CA1060494A (en) * 1976-01-12 1979-08-14 John J. Sarver Rearwardly controlled snow skis
DE3675144D1 (de) * 1985-04-08 1990-11-29 Golden Oak Res & Dev Inc Schneeski und methode zu seiner herstellung.
US5871225A (en) * 1989-09-29 1999-02-16 Sutherland; Robert L. Short, wide ski and binding
US5286051A (en) * 1990-04-04 1994-02-15 Atomic Skifabrik Alois Rohrmoser Alpine ski with a minimum width and specific width/length ratio
ATE115876T1 (de) * 1990-04-05 1995-01-15 Head Sport Ag Ski.
WO1992022361A1 (en) * 1991-06-17 1992-12-23 Trimble & Co., Inc. Ski binding block
US5603522A (en) * 1991-08-29 1997-02-18 Nelson; Paul N. Wide short ski
FR2689411B1 (fr) * 1992-04-01 1994-06-03 Salomon Sa Ski comprenant une embase et un raidisseur en deux parties relie a l'embase.
FR2700476B1 (fr) * 1993-01-19 1995-03-10 Rossignol Sa Ski de fond.
US5375868A (en) * 1993-03-03 1994-12-27 Sarver; Jeff Ski having compound curve undersurface
BE1010011A3 (nl) * 1996-02-06 1997-11-04 Cattoor Wally Ski.
US6382658B1 (en) * 1997-11-19 2002-05-07 North Shore Partners Method of making a snowboard having improved turning performance
FR2807670B1 (fr) * 2000-04-14 2002-06-07 Rossignol Sa Ski alpin

Also Published As

Publication number Publication date
ATE392237T1 (de) 2008-05-15
US20050140117A1 (en) 2005-06-30
EP1547654B8 (de) 2008-07-02
FR2864451B1 (fr) 2006-01-27
FR2864451A1 (fr) 2005-07-01
DE602004013110T2 (de) 2009-06-10
US7083183B2 (en) 2006-08-01
DE602004013110D1 (de) 2008-05-29
EP1547654A1 (de) 2005-06-29

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