EP0753330B1 - Moyens pour pratiquer le ski de fond selon la technique du pas du patineur - Google Patents
Moyens pour pratiquer le ski de fond selon la technique du pas du patineur Download PDFInfo
- Publication number
- EP0753330B1 EP0753330B1 EP96420222A EP96420222A EP0753330B1 EP 0753330 B1 EP0753330 B1 EP 0753330B1 EP 96420222 A EP96420222 A EP 96420222A EP 96420222 A EP96420222 A EP 96420222A EP 0753330 B1 EP0753330 B1 EP 0753330B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ski
- country skiing
- level
- boot
- wedge
- 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 - Lifetime
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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
- A63C5/003—Structure, covering or decoration of the upper ski surface
Definitions
- the invention relates to means for practicing cross-country skiing, more particularly intended for the technique known as "the skater's step”.
- this technique in a known manner, consists in evolving by making diverge your skis from the direction of progression, progression proper being provided by the alternative exercise of impulses transverse by the skier on one of his skis.
- this technique consists in ensuring the progression not by the exercise of a thrust in the longitudinal direction, but at the contrary by means of successive and alternating transverse supports. he It is therefore advisable to optimize the grip, that is to say the impulse, by making it as effective as possible, therefore ensuring when taking pulse, maximum energy transfer.
- the ski In order to reduce the duration of this pulse, and to decrease it effort, so the ski must be able to tilt easily on its edge internal without causing too much energy loss by the skier, nor inherent resistance to friction of the ski on the internal edge by its progression in the tilted position.
- This tilting of the ski on its edge Internal movement is accomplished by moving the knee inward. It is conditioned by two essential parameters related to skiing, namely the width of the ski and the distance from the point of application of the tilting force, typically formed by the knee, relative to the base of the sole, that is to say with respect to the sliding face of the ski sole. In other words, these two parameters can be summed up in the way following: the width of the ski sole and the distance between the base of this sole and the base of support of the skier's shoe on the ski, these two parameters being measured at the level of the ski skid.
- this tilting of the ski by relation to the internal edge is analyzed as a rotational movement by relative to an axis formed by this edge, and the energy required to perform this tilting amounts to calculating the moment of the force at the origin of rotation relative to this axis of articulation.
- the defining characteristics the value of this moment consist of the intensity of the force on the one hand, and by the distance from the point of application of this force relative to the axis of articulation on the other hand, the term distance in front be heard in its geometric sense.
- a solution may consist in increasing this distance from the point of application.
- the invention therefore aims to reduce the energy required to set up works this tilting around the internal edge, in order to be able allow this support, while maintaining a duration of acceptable tilting.
- the invention therefore relates to a means for achieving the better compromise between the energy required for tilting and the duration of it.
- these means comprising at least two skis each fitted with a binding allowing the front to be secured from the skier's shoe to the ski, said means having at the level of the thickest area of the skis, and typically at the level of the skate, a thickness such that the ratio of the width of the sole of the skis to skate level over the distance between the sliding surface and the sole of the skis from the base of the boot to the surface upper of the skis or on the plate for fixing said boot to the ski is between 0.6 and 1.2.
- the invention consists in increasing the height between the sole of the ski and the boot, and more precisely of the base support of the boot on the binding of the ski.
- the fundamental characteristic means for a complete ski that is to say, provided with its binding if necessary, WHEREAS the defined report takes into account the support base of the shoe.
- This support base is itself well defined, and corresponds to the sole surface of the shoe actually resting on the ski, or on the plate of the binding, or on any added element or integrated on or in the ski, during the impulse phase.
- the known elevations in the ski area in no case have the same or similar purpose as that of cross-country skiing, since in particular, the principle of progression put in work is totally different.
- the height defined above that is to say the distance between the sliding surface of the sole of the ski and the base support of the boot on the upper surface of the ski, or on the plate of the binding or on any raised element attached to the ski, is at least equal to 40 mm and at most equal to 60 mm.
- this height can be obtained by fitting a shim added to the upper surface of the ski, on which the binding is placed allowing the binding of the boot to the ski, possibly with its own fixing plate or plate.
- the shims thus added have a thickness comprised between 5 and 30 mm, and advantageously close to 10 mm.
- this wedge is integrated into the internal structure of the ski.
- said wedge is inclined in direction of the front end of the ski, the area at the heel constituting the highest point.
- a layer of a visco-elastic element we interlayer between the cleat and the upper surface of the ski at the level of the skate, a layer of a visco-elastic element, in order to increase the comfort of the skier.
- the wedge is integrated into the level of the mounting plate.
- the height of the plate is between 10 and 30 mm.
- FIG. 1 therefore schematically shows a cross-country ski represented in section longitudinal.
- This ski (1) has, in known manner, two ends, respectively the heel (2) and the spatula (3), and also includes a gliding sole (4) extending over the entire length of the ski.
- the skate area corresponding to a substantially central area is the thickest area of the ski.
- This zone of the shoe (5) receives the fixing, allowing the front of the ski boot.
- this area of the skate has an elevation (6) which, in this case, is integrated in the internal structure of the ski.
- the upper face (7) of the ski does not present any discontinuity of nature, i.e. the layer upper, most often decorated, is continuous and envelops the outgrowth constituted by this elevation.
- the thickness at the level of the pad reaches, taking into account this elevation (6), a height D of 45 mm, said height being measured from the sliding face of the sole (4) to the bearing face (6) of the boot, that is to say facing the level of which it is fixed on the binding and on which comes to rest the foot of the skier in the impulse phase.
- the ski itself is a traditional cross-country ski, the thickness d of which at the level of the skate is typically 35 mm and its width L of 45 mm.
- This ski receives a wedge (8) attached to the upper face (7) of the ski by any means, in particular by bonding.
- a sheet of visco-elastic material (9) intended to dampen vibrations, and more generally, to increase the comfort of use of the skier.
- FIG 3 a cross section of the ski of Figure 2, made at the level of the skate.
- the reference G 1 schematically represents the knee of the user on a traditional ski, and it can be observed in fact that the positioning of the wedge (8) allows the knee to be moved away in a position G 2 from the gliding sole (4), and thereby decreasing the angle ⁇ 2 ⁇ 1 defined by the intersection of the straight line joining points G 2 and G 1 of one of the edges (11, 12) of the sole respectively sliding of the ski, and of the plane integrating the side edges (13, 14) of said ski.
- the wedge (8) is higher at the heel (10), that is to say at the point of support of the skier's heel, and therefore has a certain downward inclination towards the front of the ski. In this way, we induce the displacement of the center of gravity of the skier upstream, typically in front of the binding, favoring the practice of the so-called "skater's step” technique.
- the wedge (8) provided with the fixing, can be joined reversibly to the surface upper of the ski, so that it is possible to select the type of cleat desired, especially in terms of thickness, profile, or rigidity, in depending on the type of snow encountered.
- the increase in height separating the gliding sole from the base support of the skier's shoe can be obtained by providing the fixing of a relatively thick plate, suitable for replace the role of the shim (8), or achieve this result in combination with a thinner shim.
- the skis according to the invention therefore favor pivoting relative to at their internal edge, reducing the time required for this pivoting or tilting, and hence, optimizing the setting phase impulse, fundamental during progression according to the so-called technique of the skater's step.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Instructional Devices (AREA)
Description
- amortissement, c'est-à-dire filtration des vibrations du ski, vibrations provenant notamment de la vitesse du ski alpin, sans commune mesure avec la vitesse du ski de fond ;
- débridage du ski, compte tenu de l'effet de serrage inhérent aux fixations avant et arrière en opposition par rapport à la semelle de la chaussure ; cet effet de serrage ne se retrouve en aucun cas dans le domaine du ski de fond, attendu que la chaussure n'est fixée au ski que par son extrémité antérieure, le talon étant en effet libre de se déplacer au moins verticalement ;
- limitation voire suppression des risques de ripage de la chaussure compte tenu de la largeur de la chaussure.
Claims (10)
- Moyens pour pratiquer le ski de fond, plus particulièrement selon la technique du "pas de patineur", comprenant au moins deux skis munis chacun d'une fixation permettant la solidarisation de l'avant de la chaussure du skieur au ski, caractérisés en ce qu'ils présentent au niveau de la zone la plus épaisse des skis, et typiquement au niveau du patin (5), une épaisseur telle, que le rapport de la largeur L de la semelle des skis à ce niveau sur la distance D séparant la surface de glissement de la semelle (4) des skis de la base d'appui de la chaussure sur la surface supérieure (7) du ski ou sur la platine de la fixation de ladite chaussure au ski est compris entre 0,6 et 1,2.
- Moyens pour pratiquer le ski de fond selon la revendication 1, caractérisés en ce que la distance D séparant la surface de glissement de la semelle (4) du ski de la base d'appui de la chaussure sur la surface supérieure (7) du ski ou sur la platine de la fixation de ladite chaussure au ski est au moins égale à 40 mm et au plus égale à 60 mm.
- Moyens pour pratiquer le ski de fond selon l'une des revendications 1 et 2, caractérisés en ce que les skis comprenent sur leur surface supérieure (7) au niveau de la zone du patin (5), une cale (8) rapportée, sur laquelle est mise en place la fixation permettant la solidarisation de l'avant de la chaussure au ski.
- Moyens pour pratiquer le ski de fond selon la revendication 3, caractérisés en ce qu'au niveau du patin (5), entre la cale rapportée (8) et la surface supérieure (7) du ski est intercalée une couche d'un élément visco-élastique (9).
- Moyens pour pratiquer le ski de fond selon l'une des revendications 3 et 4, caractérisés en ce que l'épaisseur e de la cale (8) est comprise entre cinq et trente mm, et avantageusement voisine de dix mm.
- Moyens pour pratiquer le ski de fond selon l'une des revendications 3 à 5, caractérisés en ce que la cale (8), munie de la fixation, est solidarisable réversiblement à la surface supérieure (7) du ski.
- Moyens pour pratiquer le ski de fond selon l'une des revendications 3 à 6, caractérisés en ce que la cale (8) est intégrée au niveau de la platine (15) de la fixation permettant la solidarisation de l'avant de la chaussure au ski..
- Moyens pour pratiquer le ski de fond selon la revendication 7, caractérisés en ce que l'épaisseur de la platine (15) est comprise entre dix et trente millimètres.
- Moyens pour pratiquer le ski de fond selon l'une des revendications 1 et 2, caractérisés en ce que les skis comprenent une cale intégrée (6) au sein de leur structure interne, la surface supérieure (7) des skis enveloppant cette excroissance.
- Moyens pour pratiquer le ski de fond selon l'une des revendications 3 à 6, caractérisés en ce que la cale (6, 8) est plus élevée au niveau du talon (10), c'est à dire au niveau du point d'appui du talon du skieur.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9508776A FR2736556B1 (fr) | 1995-07-13 | 1995-07-13 | Moyens pour pratiquer le ski de fond selon la technique du pas du patineur |
FR9508776 | 1995-07-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0753330A1 EP0753330A1 (fr) | 1997-01-15 |
EP0753330B1 true EP0753330B1 (fr) | 1999-03-24 |
Family
ID=9481170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96420222A Expired - Lifetime EP0753330B1 (fr) | 1995-07-13 | 1996-07-02 | Moyens pour pratiquer le ski de fond selon la technique du pas du patineur |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0753330B1 (fr) |
AT (1) | ATE177964T1 (fr) |
DE (1) | DE69601834T2 (fr) |
FR (1) | FR2736556B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2787723B1 (fr) | 1998-12-23 | 2001-01-26 | Skis Dynastar | Planche de glisse |
FR2929530A1 (fr) * | 2008-04-08 | 2009-10-09 | Salomon Sa Soc Par Actions Sim | Ensemble comprenant une planche de glisse et un dispositif de retenue d'un article chaussant |
FR2929531B3 (fr) | 2008-04-08 | 2010-08-13 | Salomon Sas | Ensemble comprenant une planche de glisse et un dispositif de retenue d'un article chaussant. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT176165B (de) * | 1950-07-19 | 1953-09-25 | Rupert Etschmann | Elastischer Holzski |
AT397209B (de) * | 1990-09-27 | 1994-02-25 | Rohrmoser Alois Skifabrik | Ski mit einer räumlich profilierten oberseite |
EP0490044A1 (fr) * | 1990-12-14 | 1992-06-17 | Salomon S.A. | Ski pour sport d'hiver comprenant un raidisseur et une embase |
FR2686520B1 (fr) * | 1992-01-28 | 1994-04-15 | Salomon Sa | Perfectionnement pour ski comprenant une plateforme centrale en saillie. |
FR2718651B1 (fr) * | 1994-04-15 | 1996-06-14 | Rossignol Sa | Ski alpin. |
-
1995
- 1995-07-13 FR FR9508776A patent/FR2736556B1/fr not_active Expired - Fee Related
-
1996
- 1996-07-02 EP EP96420222A patent/EP0753330B1/fr not_active Expired - Lifetime
- 1996-07-02 DE DE69601834T patent/DE69601834T2/de not_active Expired - Fee Related
- 1996-07-02 AT AT96420222T patent/ATE177964T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69601834D1 (de) | 1999-04-29 |
FR2736556A1 (fr) | 1997-01-17 |
EP0753330A1 (fr) | 1997-01-15 |
ATE177964T1 (de) | 1999-04-15 |
FR2736556B1 (fr) | 1997-08-14 |
DE69601834T2 (de) | 1999-08-12 |
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