EP1145742A1 - Ski alpin - Google Patents
Ski alpin Download PDFInfo
- Publication number
- EP1145742A1 EP1145742A1 EP01420085A EP01420085A EP1145742A1 EP 1145742 A1 EP1145742 A1 EP 1145742A1 EP 01420085 A EP01420085 A EP 01420085A EP 01420085 A EP01420085 A EP 01420085A EP 1145742 A1 EP1145742 A1 EP 1145742A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ski
- stiffness
- reduction
- area
- zone
- 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.)
- Granted
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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
- A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
- A63C5/07—Skis or snowboards with special devices thereon, e.g. steering devices comprising means for adjusting stiffness
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C9/00—Ski bindings
- A63C9/003—Non-swivel sole plate fixed on the ski
Definitions
- the present invention relates to an alpine ski.
- Alpine skiing has a front area called the tip area, a back area called the heel area and an intermediate zone called the skate zone.
- Figure 1 of the accompanying schematic drawing shows a ski alpine seen in profile in which the tip zone, skate zone and heel zone are designated by the references 2, 3 and 4. It also appears from this figure 1 that the thickness of the ski varies over the length thereof, the thickness being significantly higher in the skate area than in the areas end, i.e. tip and heel areas. Indeed, the fixing of a The skier's shoe is mounted in the skate area. So this is the area which must be the most resistant, and it is through this skate area that passes most of the efforts between the snow and the skier's shoe.
- the stiffness of a ski is measured as follows: the ski is laid flat between two distant supports of length L (from 200 to 600 mm), a load F between 40 and 60 kg is applied at mid-distance of these supports. The deformation of the ski under this load is then measured (arrow). Then the ski is moved in order to carry out this measurement on another zone (displacement between 50 to 200 mm). The different values arrow allow to define the stiffness curve shown in figure 2.
- the object of the invention is to define the stiffness of a bare ski in anticipating the influence of the binding-shoe assembly necessary for ski use.
- the stiffness that is to say the resistance to bending in the longitudinal direction of the ski, of the part center of the skate area is less than the stiffness in both parts end of the pad area, i.e. the connecting parts with the front and rear zones respectively.
- This ski is therefore distinguished from a classic alpine ski in which the stiffness curve, i.e. the resistance to bending in the direction longitudinal of the ski placed flat between two supports, is practically a function of the variation in thickness of the ski, that is to say that the stiffness is generally increasing from the extremities towards the central zone of the skate.
- the stiffness curve i.e. the resistance to bending in the direction longitudinal of the ski placed flat between two supports
- the stiffness is at least 5% lower than the lowest stiffness of the parts end of the skate area.
- ski structures whether a ski with a traditional structure, that is to say comprising a set lower, resistant longitudinal walls called edges, arranged on either side of a central core, and an upper assembly, of a so-called ski with shells, that is to say comprising an outer casing of material synthetic reinforced on the inside of the ski by at least one layer of laminated fabric, forming the upper wall and the side walls of the ski and the edges of which rest directly or indirectly on the edges, or again of a ski with a mixed structure, that is to say comprising a shell of which the edges rest on longitudinal reinforcing elements, present at least in the central part or skate area of the ski.
- the reduction in stiffness in the skate area of the ski is obtained by a localized decrease in the height or thickness of the edges.
- the localized decrease in edge height can be total, and result in an interruption in the central part of the skate area.
- the reduction in stiffness in the central part of the skate area is obtained by a localized reduction the width of the upper part of the ski, the lower part comprising the sole and the remaining edges of traditional width.
- the reduction in stiffness in the central part of the skate area is obtained by bringing together localized upper and / or lower reinforcements and the neutral fiber of the ski.
- the reduction in stiffness in the central part of the skate area is obtained by a localized decrease in the thickness of the ski.
- the ski in the case where it has a structure comprising a material shell synthetic reinforced on the inside of the ski by at least one layer of laminated fabric, forming the upper wall and part of the walls side of the ski and whose edges rest on longitudinal elements reinforcement visible on the side walls of the ski, and which take support directly or indirectly on the edges, reducing the stiffness in the skate area of the ski is obtained by a decrease in the height or by a localized deletion of the longitudinal elements of reinforcement in favor of an increase in height of the side walls of the hull in this area.
- the length of the reduction in stiffness is of the order of 200 mm to 600 mm, and preferably between 400 and 500 mm.
- Figure 1 is a side view of an alpine ski.
- Figure 2 is a view showing the variation in stiffness of a ski traditional, along its length.
- Figure 3 is a view showing the variation in stiffness of a ski according to the invention, over the length thereof.
- Figure 4 is a perspective view of a first ski.
- Figure 5 is a schematic view in cross section and enlarged scale along line V-V in Figure 4.
- Figure 6 is a perspective view of a second ski.
- Figure 7 is a schematic cross-sectional view and enlarged scale of this ski along line VII-VII of figure 6.
- Figure 8 is a perspective view of a third ski.
- Figure 9 is a side view and on an enlarged scale of the part center of the figure 8 ski skate area.
- Figures 10 and 11 are two cross-sectional views and enlarged scale of this ski respectively along lines X-X and XI-XI of figure 8.
- Figure 12 is a side and exploded view of a component core a fourth ski.
- Figure 13 is a side view of this ski in the mounted position.
- Figures 14 and 15 are two views in cross section along lines XIV-XIV and XV-XV of Figure 13, respectively.
- FIG. 3 represents the stiffness curve of a ski according to the invention, in which the length of the ski L has been plotted on the abscissa and in which the stiffness has been carried along the ordinate axis.
- the stiffness in the central part C of the pad P is less than the stiffness in the end parts E and F of the skid zone, i.e. the connecting parts with the spatula zones S and heel T respectively.
- Figures 4 and 5 show a ski having a structure shell, that is to say comprising a shell 5 of synthetic material, reinforced on the inside of the ski by at least one layer of fabric laminate, not shown in the drawing, forming the upper wall 6 and the side walls 7, 8 of the ski and the edges of which rest on the edges 11.
- This ski has a lower assembly incorporating a sliding sole 9 disposed between the edges, as well as a central core 10 resting on the lower assembly and forming the interior of the ski. Reinforcement elements are provided, which have not been shown in the drawing insofar as they do not relate to the invention.
- the part center of the skate area is used for mounting on the upper face of the ski, a stop 12 and a heel 13 constituting the attachment of a skier's shoe.
- the reduction in stiffness in the central part of the skate area is obtained by a localized reduction in the width of the hull made on both sides and across the median longitudinal axis of the ski. This translates, as shown in the drawing, by recessed zones 14 obtained by an increase of the inclination of the side walls 8 in this zone relative to the walls side 7 of the ski over the rest of its length. It emerges from Figures 4 and 5 that in the central part of the skate area the width of the upper zone 6 is reduced.
- FIGS. 6 and 7 show a second ski, which is also a ski with shell structure, having the same general characteristics than the first ski. The same elements are therefore designated by the same references than before.
- the decrease in the stiffness in the part center of the skate area is obtained by a localized decrease in the thickness of the ski, in a zone 15 located between the stop 12 and the heel piece 13.
- FIGS. 8 to 11 show a third embodiment of a ski according to the invention.
- This ski has a hull in synthetic material 16, reinforced on the inside of the ski, that is to say on the core 10 side by at least one layer of laminated fabric, not shown in the drawing.
- the shell 16 forms the upper wall 17 and a part of the side walls 18, and its edges rest on elements longitudinal reinforcement 19, visible on the side walls of the ski, and which rest on the edges 11.
- This structure is clearly visible Figures 8 and 11.
- the decrease in stiffness in the central part of the ski skate area is obtained by localized removal of elements longitudinal reinforcement 19 in favor of an increase in the walls side 18 of the shell, as can be seen in FIGS. 8, 9 and 10.
- the lower edges of the shell 16 rest directly on the edges.
- a variant of this ski would consist of decrease the height of the reinforcing elements in the central part of the skate area, without completely removing them.
- FIGS 12 to 15 show another ski in which the same elements are designated by the same references as previously.
- the core 10 has, in the central part of the skate area, a cavity 20.
- a shim 24 is designed to match the shape of the cavity 20.
- FIGS 13 to 15 schematically represent a ski in accordance with this embodiment constituted as follows: after placing in a mold, the sole 9, the edges 11 and the core 10, there is a reinforcing fabric 22, so that it matches the shape of the core 10 so of the cavity 20, then we have the shim 24 to fill the cavity 20, and finally this cap is capped by the shell 23.
- This structure makes it possible to reduce the stiffness of the ski in the central part of the skate area of it. This reduction in stiffness could be obtained in variants not using a shim, but in which the upper reinforcement 22 or the lower reinforcement, not shown, approaches neutral fiber of the ski, in the area where the stiffness must be diminished.
- the invention provides a great improvement to the existing technique by providing a ski whose structure, the term structure being taken in the broad sense and being able to designate both an arrangement of materials and dimensions, allows to homogenize the stiffness in the central part of the skate area, without require the implementation of complex means, and on the contrary, in certain forms of execution, by reducing the quantity of material and by then the weight and the cost price of the ski.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
Claims (9)
- Ski alpin comportant une zone avant dite zone spatule (2), une zone arrière dite zone talon (4) et une zone intermédiaire dite zone patin (3) destinée à recevoir une butée (12) et une talonnière (13) constituant la fixation de la chaussure d'un skieur, caractérisé en ce que la raideur, c'est-à-dire la résistance à la flexion dans le sens longitudinal du ski, de la partie centrale de la zone patin (3) est inférieure à la raideur dans les deux parties d'extrémité de la zone patin (3), c'est-à-dire les parties de raccordement avec les zones avant (2) et arrière (4) respectivement.
- Ski alpin selon la revendication 1, caractérisé en ce que, dans la partie centrale de la zone patin (3), la raideur est inférieure d'au moins 5 % à la raideur la plus basse des parties d'extrémité de la zone patin.
- Ski alpin selon l'une des revendications 1 et 2, caractérisé en ce que la diminution de raideur dans la partie centrale de la zone patin (3) est obtenue par un rapprochement localisé des renforts supérieurs et/ou inférieur (22) de la fibre neutre du ski.
- Ski alpin selon l'une des revendications 1 et 2, caractérisé en ce que dans le cas où le ski possède des éléments de renforcement longitudinaux (19) apparents sur les parois latérales du ski et appelés chants, la diminution de raideur dans la zone patin du ski est obtenue par une diminution localisée de la hauteur ou de l'épaisseur des chants.
- Ski alpin selon la revendication 4, caractérisé en ce que la diminution de raideur dans la partie centrale de la zone patin est obtenue par une interruption localisée des chants (19) dans cette partie.
- Ski alpin selon l'une des revendications 1 et 2, caractérisé en ce que dans le cas où il possède une structure comportant une coque (16) en matière synthétique renforcée du côté de l'intérieur du ski par au moins une couche de tissu stratifié, formant la paroi supérieure et une partie des parois latérales du ski et dont les bords reposent sur des éléments longitudinaux de renforcement (19) apparents sur les parois latérales du ski, et qui prennent appui directement ou indirectement sur les carrés (8), la diminution de la raideur dans la zone patin du ski est obtenue par une diminution de la hauteur ou par une suppression localisée des éléments longitudinaux de renforcement (19) au profit d'une augmentation de hauteur des parois latérales (18) de la coque (16) dans cette zone.
- Ski alpin selon l'une des revendications 1 et 2, caractérisé en ce que la diminution de raideur dans la partie centrale de la zone patin (3) est obtenue par une diminution localisée (15) de l'épaisseur du ski.
- Ski alpin selon l'une des revendications 1 et 2, caractérisé en ce que la diminution de raideur dans la partie centrale de la zone patin (3) est obtenue par une réduction localisée (14) de la largeur de la partie haute du ski, la partie basse comportant la semelle et les carres restant de largeur traditionnelle.
- Ski alpin selon l'une des revendications 1 à 8, caractérisé en ce que la longueur de la zone de diminution de raideur est de l'ordre de 200 mm à 600 mm, et de préférence comprise entre 400 et 500 mm.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0004877A FR2807670B1 (fr) | 2000-04-14 | 2000-04-14 | Ski alpin |
FR0004877 | 2000-04-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1145742A1 true EP1145742A1 (fr) | 2001-10-17 |
EP1145742B1 EP1145742B1 (fr) | 2004-12-22 |
Family
ID=8849294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01420085A Expired - Lifetime EP1145742B1 (fr) | 2000-04-14 | 2001-04-09 | Ski alpin |
Country Status (5)
Country | Link |
---|---|
US (1) | US6637766B2 (fr) |
EP (1) | EP1145742B1 (fr) |
AT (1) | ATE285277T1 (fr) |
DE (1) | DE60107893T2 (fr) |
FR (1) | FR2807670B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2745884A1 (fr) * | 2012-12-20 | 2014-06-25 | Fischer Sports GmbH | Ski, notamment ski de randonnée |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2820983B1 (fr) | 2001-02-20 | 2004-04-16 | Rossignol Sa | Planche de glisse |
FR2820984B1 (fr) | 2001-02-20 | 2003-06-06 | Rossignol Sa | Plateforme de rehaussement de la fixation d'une planche de glisse, et planche de glisse equipee d'une telle plateforme |
FR2820982B1 (fr) * | 2001-02-20 | 2003-03-28 | Rossignol Sa | Planche de glisse |
FR2838063B1 (fr) * | 2002-04-09 | 2004-11-12 | Rossignol Sa | Ski alpin |
US7150464B2 (en) * | 2002-08-02 | 2006-12-19 | Lane Ekberg | Configurable snowshoe and ski device |
US7681904B2 (en) | 2002-08-02 | 2010-03-23 | Lane Ekberg | Configurable snowshoe and ski device |
FR2864451B1 (fr) * | 2003-12-24 | 2006-01-27 | Skis Dynastar | Ski |
US8348299B2 (en) * | 2005-10-07 | 2013-01-08 | Lane Ekberg | Multiple direct lock positions for touring ski mounting plate |
US9079094B2 (en) | 2005-10-07 | 2015-07-14 | Lane A. Ekberg | Multiple direct touring positions for snowboard boot binding mounting base |
FR2891751B1 (fr) * | 2005-10-11 | 2008-06-06 | Salomon Sa | Planche de glisse ou de roulage |
US20080174089A1 (en) * | 2007-01-21 | 2008-07-24 | Lane Ekberg | Apparatus, system, and method for a collapsing approach ski |
US20090256332A1 (en) * | 2007-02-07 | 2009-10-15 | Lane Ekberg | Apparatus, System, and Method for Folding, Stowing, and Deploying Skis |
US20090045605A1 (en) * | 2007-08-17 | 2009-02-19 | Pat Keane | Snow ski |
WO2014082058A1 (fr) * | 2012-11-26 | 2014-05-30 | Renoun Ski Company, Llc | Appareil pour sport de neige à matériaux non newtoniens |
JP2017148502A (ja) * | 2017-01-23 | 2017-08-31 | 公裕 土江 | スキー板 |
US11478691B2 (en) * | 2018-07-10 | 2022-10-25 | Renoun, Llc | Snow sliding device incorporating material having shear-rate dependent shear resistance, and methods for its manufacture |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH671887A5 (fr) | 1982-03-25 | 1989-10-13 | Brosi Bettosini | |
US5232241A (en) * | 1992-02-24 | 1993-08-03 | K-2 Corporation | Snow ski with integral binding isolation mounting plate |
US5803478A (en) * | 1995-06-07 | 1998-09-08 | Gavalis; Richard Clifford | Ski |
FR2763861A1 (fr) | 1997-05-30 | 1998-12-04 | Rossignol Sa | Plateforme en une seule partie pour le montage sur un ski alpin, d'une fixation pour chaussure |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5096217A (en) * | 1988-12-01 | 1992-03-17 | Kent Hunter | Monoski with deep side cuts and cambered segment in the binding portion |
FR2666021B1 (fr) * | 1990-08-24 | 1992-11-13 | Salomon Sa | Ski de fond, notamment pour la pratique du pas alternatif. |
FR2689411B1 (fr) * | 1992-04-01 | 1994-06-03 | Salomon Sa | Ski comprenant une embase et un raidisseur en deux parties relie a l'embase. |
FR2698013B1 (fr) * | 1992-11-19 | 1994-12-16 | Rossignol Sa | Dispositif de montage d'une chaussure sur un ski alpin. |
FR2734490B1 (fr) * | 1995-05-22 | 1997-07-04 | Rossignol Sa | Planche de glisse sur neige comportant une plateforme de reception et de surelevation des fixations de la chaussure |
FR2787723B1 (fr) * | 1998-12-23 | 2001-01-26 | Skis Dynastar | Planche de glisse |
-
2000
- 2000-04-14 FR FR0004877A patent/FR2807670B1/fr not_active Expired - Fee Related
-
2001
- 2001-04-09 DE DE60107893T patent/DE60107893T2/de not_active Expired - Fee Related
- 2001-04-09 AT AT01420085T patent/ATE285277T1/de not_active IP Right Cessation
- 2001-04-09 EP EP01420085A patent/EP1145742B1/fr not_active Expired - Lifetime
- 2001-04-12 US US09/832,796 patent/US6637766B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH671887A5 (fr) | 1982-03-25 | 1989-10-13 | Brosi Bettosini | |
US5232241A (en) * | 1992-02-24 | 1993-08-03 | K-2 Corporation | Snow ski with integral binding isolation mounting plate |
US5803478A (en) * | 1995-06-07 | 1998-09-08 | Gavalis; Richard Clifford | Ski |
FR2763861A1 (fr) | 1997-05-30 | 1998-12-04 | Rossignol Sa | Plateforme en une seule partie pour le montage sur un ski alpin, d'une fixation pour chaussure |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2745884A1 (fr) * | 2012-12-20 | 2014-06-25 | Fischer Sports GmbH | Ski, notamment ski de randonnée |
Also Published As
Publication number | Publication date |
---|---|
EP1145742B1 (fr) | 2004-12-22 |
FR2807670A1 (fr) | 2001-10-19 |
DE60107893T2 (de) | 2005-05-19 |
DE60107893D1 (de) | 2005-01-27 |
US20010035630A1 (en) | 2001-11-01 |
US6637766B2 (en) | 2003-10-28 |
ATE285277T1 (de) | 2005-01-15 |
FR2807670B1 (fr) | 2002-06-07 |
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