EP0546309A1 - Ski mit Oberfläche mit veränderlicher Breite - Google Patents

Ski mit Oberfläche mit veränderlicher Breite Download PDF

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Publication number
EP0546309A1
EP0546309A1 EP92118714A EP92118714A EP0546309A1 EP 0546309 A1 EP0546309 A1 EP 0546309A1 EP 92118714 A EP92118714 A EP 92118714A EP 92118714 A EP92118714 A EP 92118714A EP 0546309 A1 EP0546309 A1 EP 0546309A1
Authority
EP
European Patent Office
Prior art keywords
ski
width
central part
edges
ski according
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Withdrawn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
EP92118714A
Other languages
English (en)
French (fr)
Inventor
Jacques Lacroix
Hervé Andrevon
Dominique Deville
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.)
Salomon SAS
Original Assignee
Salomon SAS
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 Salomon SAS filed Critical Salomon SAS
Publication of EP0546309A1 publication Critical patent/EP0546309A1/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Withdrawn legal-status Critical Current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
    • 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
    • A63C5/048—Structure of the surface thereof of the edges

Definitions

  • the present invention relates to an alpine ski, a cross-country ski, a monoski or a snow south. It relates more particularly to an improvement in this type of skiing.
  • the skis used in particular in the practice of alpine skiing consist of an elongated beam ending at the front by a spatula, and at the rear, by a heel.
  • the thickness of the ski is generally greater in the central part and gradually decreases towards the ends so that the ski somehow forms a beam with a particular flexion.
  • the structure generally comprises peripheral protective elements, internal resistance elements to resist the bending and torsional stresses, and a core, as well as sliding and latching elements. These elements are assembled by gluing or by injection, the assembly generally being carried out hot in a mold having the final shape of the ski, with a front part strongly raised in tip, a rear part slightly raised in heel, a central arched part. .
  • the dimensional and structural characteristics of the ski determine the skiability characteristics of the ski, its dimension line making it possible to make the ski evolve when cornering by promoting its holding in a curve, and its thickness line making it possible to obtain the good bending adjustments.
  • the torsion is adjusted using the edge line.
  • the French Patent No. 2,522,978 teaches the use of a ski whose lateral faces are inclined steadily or variable, in order to reduce the side friction when performing turns.
  • the inclination is variable in particular to adapt to variations in width of the upper surface of the ski in the direction of a curvilinear narrowing in the surroundings of the central area.
  • the width can, as shown in Figure 1 of this document, be constant in order to create a platform capable of receiving the fasteners.
  • This form of ski is complicated to manufacture, due to the fact that the upper edges are curvilinear over a large part of the length of the ski.
  • the present invention relates on the one hand to improvements made to these skis in order to facilitate their manufacture, and on the other hand, makes it possible to obtain the desired skiability, comfort and resistance characteristics.
  • the ski according to the invention has the form of an elongated beam comprising a lower sliding face limited laterally by two lower edges, an upper face limited laterally by two upper edges and two lateral faces, is made up of a central part. extended at the front by a front part terminated at its front end by the spatula and extended at the rear by a rear part terminated at its rear end by the heel, said front part consisting of a front portion connected to the part central by an intermediate front connecting portion, while said rear part is constituted by a rear portion connected to the central part by an intermediate rear connecting portion, the two upper edges of the upper surface being parallel in the central part, while one of the two front or rear portions is such that in this area, on the one hand, the fa these sides are inclined to converge upwards, and on the other hand, the upper surface is narrower than in the central part and has a constant width.
  • the ski has portions of constant width or whose upper edges are parallel, in particular aims to facilitate the manufacture of the ski and in particular the cutting and the establishment of an additional additional reinforcement, as well as to improve the resistance of the upper edges in these portions.
  • the fact that at least one of the two front or rear portions has an upper surface with a width less than that of the central part allows, while retaining the aforementioned advantages, on the one hand of having a sufficient space, intended for the location of the bindings, on the other hand, of having a ski whose torsion and flexion values are more modular, depending on the position longitudinal considered, compared to those of skis already known.
  • the front portion is such that its upper surface is narrower than in the central part and is limited by the two lateral edges which are parallel.
  • the rear portion is such that its upper surface is narrower than in the central part and is limited by the two lateral edges which are parallel.
  • the width of the upper surface of the front portion is equal to the width of the upper surface of the rear portion while in another arrangement, the width of the upper surface of the front portion is different from the width of the upper surface of the rear portion.
  • the lateral faces are also inclined in the central part of the ski, to converge upwards symmetrically with respect to the median longitudinal axis of the ski.
  • the angle of inclination of the lateral faces varies continuously so that said angle of inclination decreases progressively from the center towards the ends.
  • the invention makes it possible to optimize the torsional stiffness without modifying the thickness of the ski or the dimension line. Indeed, by modifying the width of the top of the ski, it is possible to obtain the desired characteristics of the torsional behavior of the latter.
  • the ski (1) has the form of an elongated beam (2) comprising a lower sliding surface (3) limited laterally by two lower edges (4, 5); it comprises inter alia, an upper surface (6) bounded laterally by two upper edges (7, 8), and two lateral faces (9, 10) connecting the lower edges (4, 5) to said upper edges (7, 8).
  • the body of the ski proper extends between a front contact line (11) and a rear contact line (12) to extend forwards by a raised front part (13), forming the tip (14) and backwards, by a shorter and less raised posterior part (15) forming the heel (16).
  • the ski body (170) considered between the two front (11) and rear (12) contact lines is, in a manner known per se, slightly arched in the rest position without load and has its own thickness distribution.
  • the thickness (e) is maximum in the central zone to decrease, for example gradually towards the front (AV) and towards the rear (AR).
  • the ski according to the invention comprises a central part (17) extended forwards by a front part (18) extending from the front end (19) of the central part (17) to the front contact line ( 11), and a rear part (20) extending from the rear end (21) of the central part (17) to the rear contact line (12).
  • the central part (17) of the ski corresponds to the central area for mounting the bindings and extends for example over a length (LC) which can be between 400 and 700 millimeters, and for example be 60 centimeters.
  • the upper surface of the ski (6) in the central part (17) has a constant width (lc).
  • the upper surface (6) of the central part (7) is laterally limited by two lateral edges (7c, 8c) rectilinear and parallel, constituted by two segments respectively (AB) and (CD) rectilinear and parallel distant one of the other by a constant distance (lc).
  • the rear portion consists of two separate portions (22, 24), a first intermediate portion (24) connecting to the central portion (17), and a rear portion (22), such as in this one here, the surfa this upper of the ski (6) has on the one hand a width (Ir) less than the width (Ic) of the central part, and on the other hand, is limited laterally by two lateral edges (7r) and (8r) s 'extending in a straight line and parallel to each other.
  • said width (Ir) is constant over the second rear portion (22) of the rear part (20) of the ski.
  • Said second rear portion extending forwards from the vicinity of the rear contact line (12) over a more or less long distance (Lr).
  • the length (Lr) can be between 5 and 30%, and for example be 18% for a ski of length (L) equal to 2 meters.
  • the upper surface (6) of the second rear portion (22) is therefore limited laterally by two edges constituted by two segments (EF, GH) rectilinear and parallel, distant from each other by a constant distance (Ir) less than (lc). Since the rear portion, where the width of the upper surface is constant, extends over a more or less long distance, said rear portion is connected to the central part by a rear intermediate connection portion (24) whose surface upper is limited laterally by two lateral edges (7ir, 8ir) divergent towards the front formed by the two segments (BE) and (DG) converging towards the rear.
  • the front part (18) consists of two separate portions (25, 26): a first intermediate portion (26) connecting to the central part (17) and a second front portion (25) as in this, the upper surface of the ski has on the one hand a width (la) less than the width (Ic) of the central part (17), and is on the other hand, limited laterally by two lateral edges (7a, 8a) extending rectilinearly and parallel to one another.
  • said width (la) is constant over the front portion (25) of the front part (18) of the ski.
  • Said front portion (25) extending rearwardly from the vicinity of the front contact line (11) over a more or less long distance (La).
  • the length (La) can be between 8 and 45%, and for example be 22% for a ski of length (L) equal to 2 meters.
  • the upper surface (6) of the front portion (25) is therefore limited laterally by two edges constituted by two segments (IJ, HL) rectilinear and parallel, spaced from each other by a lower constant distance (la) to (lc). Since the front portion, where the width of the upper surface is constant, extends over a more or less long distance, said front portion is connected to the central part by an intermediate front connecting portion (26) whose surface upper is limited laterally by two lateral edges (7ir, 8ir) converging towards the front formed by the two segments (JA) and (LC) converging towards the front.
  • the lateral faces (9, 10) are inclined to converge upwards at least in the front (18) and rear (20) parts to form an acute angle (A) to adapt to variations in width (I) of the upper and also lower surface of the ski.
  • the width (I) of the lower surface being greater than the width of the upper surface at any point considered along the length of the ski
  • the lateral faces (9, 10) are also inclined in the central zone and the he inclination is variable along the ski.
  • the value (A) of the angle of inclination varies depending on the longitudinal position of the section considered, as shown in Figures 3, 4, 5, 6, 7, 8, 9 and more particularly the figure 10.
  • the angle (A) is greater in the central part than in the front and rear parts.
  • the variation in inclination is advantageously continuous and progressive with a decrease in the constant progressive angle (A) from the center of the ski towards the ends.
  • the lateral faces (9, 10) are symmetrical to one another with respect to the vertical longitudinal median plane (P) of symmetry of the ski, but of course, it could be otherwise.
  • the angle (A) is for example between 55 and 90 while in the front and rear parts, this angle will for example be between 15 and 90 ° .
  • the side faces (9, 10) can be flat, as shown in Figures 3 to 9, but they can have a concave or convex curvilinear profile, as shown in Figures 11 and 12. Of course, the side faces can be flat in one part of the ski and be curved in one or other of the parts, or vice versa.
  • FIG. 10 shows an example of a curve for varying the angle (A) of inclination as a function of the position along the ski (1).
  • the values of the angles (A) are referenced on the ordinate, while on the abscissa, there is the position considered along the ski (1).
  • FIG. 13 illustrates a variant of a ski in a cross section, according to which the lateral edges of the upper surfaces (6) of the front (25) and rear (22) portions include, over at least part of their length, protrusions longitudinal (70, 80), in particular to protect the upper surface (6) which is particularly attacked in these places, for example by strokes from the edges.
  • the longitudinal projections extend over the entire length of the front portion (18) and over the entire length of the rear portion (20).
  • the projections only extend over a part only of length (LD) and (LE) of the front (25) and rear (22) portions, of respective lengths (La) and (Lr ).
  • the structure of the ski can be of the sandwich type or of the box type or of any other type.
  • a preferred structure comprising a first upper rigid reinforcement (30) in the form of a shell with inverted "U" section forming a top wall (31) and two walls lateral (32 and 33), covering a core (34), the assembly being closed at its lower part by a lower element (35) comprising the metal edges (36, 37), a sliding layer (38) generally made of polyethylene as well as lower reinforcement elements (39, 40).
  • a second upper reinforcement layer (42) is provided under the first layer.
  • Said second layer (42) being for example constituted by a strip of constant width (l'b) extending at least in the central part (17) of length (L'c) intended to receive the fasteners.
  • FIG. 16 representing a section of the structure of the ski in the front part (18) of the ski shows that the second layer (42) extends beyond the central part (17) while maintaining a constant width.
  • the width (l'b) is greater than the width (la) of the upper surface of the ski and the edges (420, 421) of the second layer (42) are slightly curved upwards inside. grooves formed by the longitudinal projections (70, 80), thus reinforcing these.
  • the reinforcing layers (30, 39, 40) can be of any type such as layers of composite materials such as fiberglass, carbon fiber with epoxy or polyester resin, or a metal alloy.
  • the core (34) can be filled or unloaded foam, wood or aluminum honeycomb.
  • the surface layer (41) providing the decoration can be made of polyamide. or other such as in thermoplastic material. It can be monolayer or made up of several layers.
  • the width (la) of the upper surface (6) of the front portion (25) is equal to the width (Ir) of the upper surface (6) of the rear portion (22), but it could be otherwise and the two widths (la) and (Ir), while being less than the width (la), could be different from each other.
  • the width (la) of the upper surface (6) of the front portion (25) could be less than or greater than the width (Ir) of the upper surface (6) of the rear portion (22).
  • the upper surface of the ski (6) has been represented in the form of a flat surface. But it goes without saying that this surface could have any other shape and in particular be curved, and in this case, either convex, or concave, or then constituted by a succession of surfaces of all kinds.
  • intermediate connecting portions (24, 26) connecting the front (25) and rear (22) portions to the central portion (17) and which are materialized by two lateral edges (7 , 8) marked in such a way that these extend continuously along the ski. It may be otherwise without departing from the scope of the invention and provision may be made for the lateral edges (7, 8) to have a discontinuity at the intermediate connecting portions (24, 26).
  • the anterior part of the lateral edge does not connect directly to the posterior part of the lateral edge in the intermediate connecting portion.
  • the lateral edge may fade in this region if a tangent connection radius is provided connecting the lateral faces (9, 10) to the upper face (6), or can deviate if a radius intersecting with the upper surface (6).

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
EP92118714A 1991-12-13 1992-11-02 Ski mit Oberfläche mit veränderlicher Breite Withdrawn EP0546309A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9115831 1991-12-13
FR9115831A FR2684886B1 (fr) 1991-12-13 1991-12-13 Ski a face superieure de largeur variable.

Publications (1)

Publication Number Publication Date
EP0546309A1 true EP0546309A1 (de) 1993-06-16

Family

ID=9420253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92118714A Withdrawn EP0546309A1 (de) 1991-12-13 1992-11-02 Ski mit Oberfläche mit veränderlicher Breite

Country Status (4)

Country Link
US (1) US5335931A (de)
EP (1) EP0546309A1 (de)
JP (1) JPH0698209B2 (de)
FR (1) FR2684886B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2703257A1 (fr) * 1993-04-01 1994-10-07 Rossignol Sa Surf de neige à profil perfectionné.
FR2722418A1 (fr) * 1994-07-13 1996-01-19 Salomon Sa Ski alpin en forme et a profil evolutif ameliore
FR2740692A1 (fr) * 1995-11-03 1997-05-09 Skis Lacroix & Co Sa Ski en forme de section non rectangulaire
WO1999043397A1 (en) * 1998-02-24 1999-09-02 K-2 Corporation Ski board with geometrically controlled torsion and flex
WO2001054777A1 (fr) * 2000-01-28 2001-08-02 Salomon S.A. Planche de glisse destinee a la pratique du surf sur neige

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2703596B1 (fr) * 1993-04-08 1995-07-07 Salomon Sa Planche de glisse notamment ski pour la pratique du ski alpin.
FR2705905B1 (fr) * 1993-06-02 1995-07-07 Rossignol Sa Ski à profil perfectionné.
USD418545S (en) * 1997-05-01 2000-01-04 Donald Cassel High strength snowboard
EP0937485A3 (de) * 1998-02-24 2002-07-24 Franz Völkl GmbH & Co. Ski und Tennis Sportartikelfabrik KG Schneegleitbrett, insbesondere Ski
US6928027B2 (en) * 2003-04-11 2005-08-09 Qualcomm Inc Virtual dual-port synchronous RAM architecture
US7690674B2 (en) * 2006-08-10 2010-04-06 Armada Skis, Inc. Snow riding implement
FR2926735B1 (fr) * 2008-01-25 2010-03-26 Salomon Sa Ski alpin avec moyens de reglage
FR2939323B1 (fr) * 2008-12-08 2011-03-25 Salomon Sas Ski alpin avec flexion controlee
WO2011037949A1 (en) * 2009-09-25 2011-03-31 The Burton Corporation Gliding board with modified bending characteristics adjacent binding mounting regions
SI23531B (sl) * 2010-11-15 2019-06-28 Elan, D.O.O. Smučka z asimetričnimi karakteristikami
US9138629B2 (en) * 2013-03-15 2015-09-22 Brian Rosenberger Rib-stiffened sports board
SI3045212T1 (sl) * 2015-01-19 2019-10-30 Flisek Razvoj Proizvodnja In Trgovina Z Izdelki Za Sport D O O Konstrukcija linije stranice in stranske stene smučke

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553669A1 (fr) * 1983-10-21 1985-04-26 Swallow Ski Kk Procede de fabrication de ski en materiau injecte et ski ainsi obtenu
FR2598932A1 (fr) * 1986-05-23 1987-11-27 Salomon Sa Ski profile dissymetrique
FR2598929A1 (fr) * 1986-05-23 1987-11-27 Salomon Sa Ski profile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8200971A (nl) * 1982-03-09 1983-10-03 Pielkenrood Vinitex Bv Platenafscheider.
FR2598930B1 (fr) * 1986-05-23 1989-10-13 Salomon Sa Ski a face superieure de largeur constante
FR2611518B1 (fr) * 1987-02-27 1989-11-17 Salomon Sa Ski a amortissement reparti
FR2618078B1 (fr) * 1987-07-15 1994-04-01 Salomon Sa Ski a face superieure divergente
FR2618077B1 (fr) * 1987-07-15 1989-11-17 Salomon Sa Ski a face superieure convergente
DE3840553A1 (de) * 1988-12-01 1990-06-07 Blizzard Gmbh Ski mit einem daempfungselement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553669A1 (fr) * 1983-10-21 1985-04-26 Swallow Ski Kk Procede de fabrication de ski en materiau injecte et ski ainsi obtenu
FR2598932A1 (fr) * 1986-05-23 1987-11-27 Salomon Sa Ski profile dissymetrique
FR2598929A1 (fr) * 1986-05-23 1987-11-27 Salomon Sa Ski profile

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2703257A1 (fr) * 1993-04-01 1994-10-07 Rossignol Sa Surf de neige à profil perfectionné.
FR2722418A1 (fr) * 1994-07-13 1996-01-19 Salomon Sa Ski alpin en forme et a profil evolutif ameliore
FR2740692A1 (fr) * 1995-11-03 1997-05-09 Skis Lacroix & Co Sa Ski en forme de section non rectangulaire
WO1997017113A1 (fr) * 1995-11-03 1997-05-15 Surfpolitix Europe Ski en forme de section non rectangulaire
WO1999043397A1 (en) * 1998-02-24 1999-09-02 K-2 Corporation Ski board with geometrically controlled torsion and flex
WO2001054777A1 (fr) * 2000-01-28 2001-08-02 Salomon S.A. Planche de glisse destinee a la pratique du surf sur neige
FR2804335A1 (fr) * 2000-01-28 2001-08-03 Salomon Sa Planche de glisse destinee a la pratique du surf sur neige
US6481741B1 (en) 2000-01-28 2002-11-19 Salomon S.A. Snowboard

Also Published As

Publication number Publication date
FR2684886A1 (fr) 1993-06-18
JPH05261174A (ja) 1993-10-12
FR2684886B1 (fr) 1994-04-01
US5335931A (en) 1994-08-09
JPH0698209B2 (ja) 1994-12-07

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