EP2343107A1 - Alpinski - Google Patents

Alpinski Download PDF

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Publication number
EP2343107A1
EP2343107A1 EP10306451A EP10306451A EP2343107A1 EP 2343107 A1 EP2343107 A1 EP 2343107A1 EP 10306451 A EP10306451 A EP 10306451A EP 10306451 A EP10306451 A EP 10306451A EP 2343107 A1 EP2343107 A1 EP 2343107A1
Authority
EP
European Patent Office
Prior art keywords
ski
contact
point
pce
horizontal plane
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.)
Withdrawn
Application number
EP10306451A
Other languages
English (en)
French (fr)
Inventor
Nicolas Puget
Vincent Bregeon
Johan Vailli
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
Original Assignee
Skis Rossignol SA
Rossignol 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, Rossignol SA filed Critical Skis Rossignol SA
Publication of EP2343107A1 publication Critical patent/EP2343107A1/de
Withdrawn legal-status Critical Current

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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
    • A63C5/04—Structure of the surface thereof
    • A63C5/0405—Shape thereof when projected on a plane, e.g. sidecut, camber, rocker

Definitions

  • the invention relates to the field of snow sports, especially Alpine skiing. More specifically, it aims at a specific geometry of a ski that makes it possible to improve its behavior in terms of maneuverability and cornering behavior.
  • the alpine skis have a bearing surface which is defined in a standardized way as being the sole surface in contact with a horizontal plane when the ski is loaded in its skate, this bearing surface being limited forward and backward. by boundary lines called “lines of contact” front and rear.
  • the objective of the invention is therefore to provide a ski that allows to combine both good ski handling properties flat, with an optimal turn behavior through a sufficient contact length when the ski is inclined.
  • the invention therefore relates to a ski on which it is possible to define different points along its length.
  • the ski when the ski is flat on a horizontal plane, and is loaded at its center so that the edges touch the horizontal plane at the pad, the ski has a contact surface, and a contact length at the edges, which extend between the front and rear contact lines.
  • the ski when the ski is pivoted about its longitudinal axis, and is therefore inclined at a non-zero angle relative to the same horizontal plane, while being loaded in its pad so that one edges touch the horizontal plane at the level of the pad, the ski then has a contact length which extends from the extreme contact points hereinafter referred to as "forward contact points" and "extreme rear contact points".
  • the ratio of the distance separating the front contact line and the forward contact point, relative to the distance separating the midpoint of the shoe to the line. forward contact is greater than 12%.
  • the same ratio is greater than 15%, preferably between 18% and 21%.
  • the ski according to the invention has a geometry such that the contact length in cornering situation, that is to say when the ski is inclined, is significantly greater than the contact length when the ski is flat.
  • the contact length in inclined ski which is particularly useful for driving the turn, is relatively large, compared to the length of contact when the ski is flat, that is to say in a situation where it is advantageous that it is lower to facilitate the handling of the ski.
  • the measure of elongation of the contact length made by comparing the flat ski with the ski in an inclination of 35 ° is greater than 70 millimeters, and even more than 90 millimeters for an inclination of 45 °.
  • an "advanced contact line” which corresponds to the front limit of the contact zone of the ski on a horizontal plane when the ski is on the one hand , applied on this horizontal plane at the level of its pad, and that in addition it receives a vertical force corresponding to a mass of 2 kg at its front end.
  • the ski is loaded at its skate so that its camber is canceled and complementarily, the ski is also loaded at its front end, but with a force corresponding to a mass of 2 kg, so the contact surface extends to the characteristic advanced contact line. Beyond this line of advanced contact, is the part of the spatula useful for the ski does not put in the snow.
  • This spatula zone has a radius of curvature of the order of 150 to 200 millimeters.
  • the sole is separated from the horizontal plane by a height between 1 and 2 mm.
  • the advanced contact line it is possible to measure the height which separates the sole of the horizontal plane when the ski is laid flat, under the measurement conditions of ISO 6289, it being understood that the determination of the contact lines and the extreme contact points is done with a gauge of 0.1 mm and not 0.5 as recommended by said standard.
  • the front end contact point as defined above, and for a slope of the ski of 45 ° is distant from the contact line advanced also defined above by a distance of less than 4 cm, or even 3 cm, and preferably 2 cm, in front of or behind said line.
  • the midpoint between the front and rear extreme contact points moves towards the front of the ski when the angle of inclination of the latter increases.
  • the middle of the contact length always determined by loading the ski to its skate so as to bring the edge on the horizontal plane, has a specific evolution. Indeed, this midpoint of the contact length is even more advanced than the angle of inclination of the ski is important. In other words, the more the ski is inclined, the more the middle point of the contact length moves forward. This point is usually located beyond the middle point of the shoe, ie the "mounting point" according to the definition of ISO 6289. In these conditions, the skier is left with a point of application its weight more and more behind the middle of the contact length, when the ski inclination angle increases, which improves the driving of the ski, and allows to obtain a more and more successful ski.
  • a ski 1 rests on a horizontal plane 2 by two contact zones 3,4 between which the sole of the board 5 is separated from the horizontal plane 2 by a camber 6.
  • the ski has a mark 9 embodying the middle of the shoe of the user, or according to the name of the ISO 6289 standard the "mounting point", and relative to which will be mounted the elements of the safety binding .
  • the contact area between the sole 5 and the plane 2 extends between the front contact line 10 and the rear contact line 11.
  • the forward contact line 10 is located at a distance of about 30 to 40% of the length of the ski, from the mounting point 9, and preferably between 35 and 37%. Forward of the line of contact before 10, is therefore defined the spatula 12 which can itself be broken down into two adjacent regions, the limit is however not defined in a standardized manner.
  • a first part 13 constitutes the beginning of the spatula and has a large radius of curvature.
  • This first portion 13 is extended by a second portion 14 constituting the spatula survey which has a smaller radius of curvature and ends with the front end 15 of the board.
  • the ski has a particular "spatula profile", that is to say an evolution of height of the lower surface of the spatula with respect to the horizontal plane 2.
  • the pad region 16 is defined in a standardized manner.
  • the heel 17 which ends with the rear end 18 of the board.
  • the heel 17 also presents a structure similar to that of the spatula, with two zones having distinctly different radii of curvature, without however being obligatory.
  • the heel 17 has a particular "heel profile", that is to say a change in height of the lower surface of the heel relative to the horizontal plane 2.
  • the ski has a dimension line that widens beyond the front 10 and rear 11 contact lines.
  • the contact surface which is bordered by the contact length has a length LP 0 measured longitudinally, and corresponding to the distance between the front contact line 10 and the rear contact line 11.
  • the length of contact changes in a particular way when the ski is inclined laterally.
  • the ski when the ski is inclined by pivoting about an axis parallel to its longitudinal axis, it rests on the horizontal plane at two contact zones each located in the spatula and the heel.
  • the edge In the most frequent case where the ski has a side line dug, the edge is not in contact with the horizontal plane in the middle of the skate, as long as the ski is not loaded.
  • the ski when the ski receives a force perpendicular to its upper face, applied substantially at the midpoint of the shoe 9, the ski is bent until the edge comes to touch the horizontal plane 2 at the midpoint of the shoe 9
  • the extreme contact points 23, 24 are determined, which include the front and rear limits of the contact zone between the edge 20 and the horizontal plane 2. It should be noted that according to the geometry of the ski, it is possible that the edge does not touch the horizontal plane throughout its length between the extreme contact points 23,24, without modifying the definition of these points.
  • the distance LP ⁇ between the two transverse lines 25,26 passing through the extreme contact points before 24 and rear 23 corresponds to the length of contact when the ski is inclined at an angle ⁇ . It should be noted that the identification of these two lines 25,26 is done when the ski is inclined on the edge, loaded by a force of at least 40 Newtons applied to the mounting point 9, in a direction perpendicular to the ski, and using a 0.1 mm gauge. Then, the distance LP ⁇ between these two lines 25,26 is measured when the ski is flat and loaded at its center. It should be noted that according to the invention, the dimension line widens at least to the extreme contact points 23, 24.
  • FIGS. Figures 5 and 6 the procedure for measuring the different characteristic contact lengths is illustrated in FIGS. Figures 5 and 6 .
  • This mode of operation makes it possible to request the skis in a manner similar to the behavior of the ski during a turn. It also allows you to combine dimension line parameters and spatula and heel profiles to study the evolution of contact lines.
  • a system 50 comprises a very rigid non-deformable horizontal table 51 , surmounted by a gantry 52 supporting a jack 53 whose position of the hanging point 54 can be adjusted according to the measurement to be made.
  • the inclination of the jack 53 and in particular of its rod can thus be modified according to the inclination ⁇ desired, this angle ⁇ corresponds to the angle of edge grip.
  • a plate 56 which can bear against the upper face of the board 1. It is also possible that this plate engages in the elements constituting the safety fastener.
  • This plate 56 thus makes it possible to distribute a portion of the forces exerted by the jack on an area of the pad surrounding the mid-point of the boot, while also ensuring that the force is exerted perpendicular to the surface of the ski. So, in the configuration shown right in the figure 5 , the ski 61 rests flat, and receives a vertical force at the pad, allowing to define in the configurations of the ISO 6289 standard, and with a gauge of 0.1mm, the position of the front and rear contact lines 10 and 11.
  • the point of attachment 54 of the cylinder is positioned so that its rod forms an angle ⁇ with a perpendicular to the plane of the table.
  • the plate located at the end of the rod of the jack is integral with the board so that the adjustment of the angle of the jack fixes the inclination of the board relative to the plane with the same angle ⁇ .
  • a force is then exerted by the cylinder rod so that, as illustrated in FIG. figure 6 the edge 20 of the ski comes into contact with the plane of the table 51.
  • the extreme contact points 23, 24 are then determined for a given inclination.
  • the ratio of the distance D ⁇ separating the extreme contact point before 24 from the front contact line 10, relative to the distance D separating the contact line before 10 the same shoe center point 9, is greater than 12% for an inclination ⁇ of 35 °, and greater than 15%, and advantageously between 18 and 21%, for an inclination ⁇ of 45 °.
  • the choice of a dimension line that widens beyond the front contact line, and a particular spatula profile increases the length of contact between flat ski and ski tilted on the edge.
  • a point of interest with respect to the positioning of the extreme contact points, in particular in the spatula zone.
  • a point is determined as illustrated in figure 7 when the ski is loaded at its center, so that its camber is canceled, and that it receives complementarily a calibrated force F at its front end 1.
  • this effort is chosen to a value equivalent to 2 kg, so that the contact surface between the sole and the horizontal plane 2 extends relative to the bearing length when the ski is loaded only in his skate.
  • This limit called “advanced contact line”, forms the 30 mark on the ski.
  • the ski hill line extends from the skid to this advanced contact line, and may extend beyond this, or begin to narrow toward the end of the ski.
  • the height h separating the sole of the horizontal plane 2, when the ski is flat, loaded with the shoe, at the level of the advanced contact line 30, is between 1 and 2 mm.
  • the extreme contact point before 24 is close to the advanced contact line 30, and is less than 40 mm, or even 30 mm, preferably about 20 mm, forward or backward.
  • the ski parameters are chosen in such a way that the spatula contact length increases in the angle ⁇ of edge grip, progressively to a limit value close to the advanced contact line 30.
  • the rear extreme contact point position 23 can move very little away from the position of the rear contact line 11, or to move backwards when the edge-gripping angle ⁇ increases. It is advantageous that the displacement of the rear end point 23 increases less rapidly than the displacement of the front end point 24.
  • the height separating the sole of the horizontal plane is less than 1mm, when the ski is flat and loaded on the skate
  • the middle of the contact length for different inclinations ⁇ evolves in a manner that is favorable to driving turns.
  • the PCE AR45, PCE AV45, PCE AR35, PCE AV35, PCE AR25, PCE AV25, PCE AR15, PCE AV15 markings of the extreme contact points were measured at the front and rear for different inclinations of 45, 35 , 25 and 15 °, it being understood that for a tilt ⁇ of 0 °, the end points corresponding to the contact lines 10 and back 11. the rear positioning of the middle extreme contact points for these different inclinations correspond to the points M 0, M, 5 , M 25 , M 35 , M 45 .
  • these points are positioned so that they are closer to the front of the ski when the angle of inclination ⁇ progresses. This means that the extreme front contact point moves further away from the middle of the shoe 9 than the rear end contact point. In certain configurations, and in particular for large angles ⁇ , this midpoint of the contact length is found in front of the midpoint of shoe 9. Such a configuration has given good results in terms of behavior and corresponds in particular to a high performance ski when it is sufficiently inclined on the edge.
  • the ski according to the invention has many advantages, in particular that of combining both good handling when the ski is flat with good cornering behavior when the ski is inclined, thanks to a relatively longer contact length.
  • This increase in contact length is large enough that the difference between the flat ski and the ski on the edge at 45 ° is significant. Therefore, according to the invention, the skier has a ski of given length, which he optimally uses from a corner angle of 45 °, but which is equivalent to a ski of longer length. short flat, about 15%.
  • a ski 166 cm long corresponds flat to a ski size about 141 cm
  • a ski of 176 cm corresponds flat to a ski size 153 cm.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP10306451A 2010-01-08 2010-12-17 Alpinski Withdrawn EP2343107A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1050110A FR2955035B1 (fr) 2010-01-08 2010-01-08 Ski alpin

Publications (1)

Publication Number Publication Date
EP2343107A1 true EP2343107A1 (de) 2011-07-13

Family

ID=42768140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10306451A Withdrawn EP2343107A1 (de) 2010-01-08 2010-12-17 Alpinski

Country Status (3)

Country Link
US (1) US8684393B2 (de)
EP (1) EP2343107A1 (de)
FR (1) FR2955035B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2514495A1 (de) * 2011-04-18 2012-10-24 Head Technology GmbH Rockerski mit mindestens zwei Taillierungen
WO2013018044A2 (fr) 2011-08-01 2013-02-07 Serge Dupraz Ski compact à appui avancé
EP2596839A1 (de) * 2011-11-24 2013-05-29 ATOMIC Austria GmbH Steighilfe zur bedarfsweise lösbaren Befestigung an der Unterseite eines Schis, sowie Schi in Kombination mit einer Steighilfe
EP3045212A1 (de) 2015-01-19 2016-07-20 Mojmir Flisek Querschnittsprofil von kante und seitenwange

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2985914B1 (fr) * 2012-01-19 2014-01-03 Rossignol Sa Planche de glisse

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2786108A1 (fr) * 1998-11-25 2000-05-26 Salomon Sa Ski
EP1120137A1 (de) * 2000-01-28 2001-08-01 Skis Rossignol S.A. Alpinski
EP1410826A1 (de) * 2002-10-15 2004-04-21 Skis Rossignol S.A. Schneegleitbrett mit verbesserter Spitze und gehobenem Ende
WO2007065280A1 (de) * 2005-12-09 2007-06-14 Kessler Hansjuerg Schneegleitbrett
EP1925344A1 (de) * 2006-11-22 2008-05-28 Salomon S.A. Skiprofil Kurve
EP2082787A1 (de) * 2008-01-25 2009-07-29 Skis Rossignol Schneegleitbrett für Pulverschnee

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2786108A1 (fr) * 1998-11-25 2000-05-26 Salomon Sa Ski
EP1120137A1 (de) * 2000-01-28 2001-08-01 Skis Rossignol S.A. Alpinski
EP1410826A1 (de) * 2002-10-15 2004-04-21 Skis Rossignol S.A. Schneegleitbrett mit verbesserter Spitze und gehobenem Ende
WO2007065280A1 (de) * 2005-12-09 2007-06-14 Kessler Hansjuerg Schneegleitbrett
EP1925344A1 (de) * 2006-11-22 2008-05-28 Salomon S.A. Skiprofil Kurve
EP2082787A1 (de) * 2008-01-25 2009-07-29 Skis Rossignol Schneegleitbrett für Pulverschnee

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2514495A1 (de) * 2011-04-18 2012-10-24 Head Technology GmbH Rockerski mit mindestens zwei Taillierungen
WO2013018044A2 (fr) 2011-08-01 2013-02-07 Serge Dupraz Ski compact à appui avancé
FR2978672A1 (fr) * 2011-08-01 2013-02-08 Serge Dupraz Ski compact a appui avance
WO2013018044A3 (fr) * 2011-08-01 2013-03-28 Serge Dupraz Ski compact à appui avancé
EP2596839A1 (de) * 2011-11-24 2013-05-29 ATOMIC Austria GmbH Steighilfe zur bedarfsweise lösbaren Befestigung an der Unterseite eines Schis, sowie Schi in Kombination mit einer Steighilfe
US9027951B2 (en) 2011-11-24 2015-05-12 Atomic Austria Gmbh Climbing aid which can be secured in a detachable manner as necessary onto the underside of a ski and a ski in combination with a climbing aid
EP3045212A1 (de) 2015-01-19 2016-07-20 Mojmir Flisek Querschnittsprofil von kante und seitenwange

Also Published As

Publication number Publication date
FR2955035B1 (fr) 2012-12-28
US8684393B2 (en) 2014-04-01
FR2955035A1 (fr) 2011-07-15
US20110169248A1 (en) 2011-07-14

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