EP0420774A1 - Ski, Verfahren zur Herstellung des Skis und Vorrichtung für die AusfÀ¼hrung - Google Patents

Ski, Verfahren zur Herstellung des Skis und Vorrichtung für die AusfÀ¼hrung Download PDF

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Publication number
EP0420774A1
EP0420774A1 EP90420422A EP90420422A EP0420774A1 EP 0420774 A1 EP0420774 A1 EP 0420774A1 EP 90420422 A EP90420422 A EP 90420422A EP 90420422 A EP90420422 A EP 90420422A EP 0420774 A1 EP0420774 A1 EP 0420774A1
Authority
EP
European Patent Office
Prior art keywords
ski
tool
plane
edges
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.)
Granted
Application number
EP90420422A
Other languages
English (en)
French (fr)
Other versions
EP0420774B1 (de
Inventor
François Jodelet
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
Priority to AT90420422T priority Critical patent/ATE90584T1/de
Publication of EP0420774A1 publication Critical patent/EP0420774A1/de
Application granted granted Critical
Publication of EP0420774B1 publication Critical patent/EP0420774B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/12—Cutter blocks; Other rotary cutting tools for profile cutting
    • 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
    • A63C5/12—Making thereof; Selection of particular materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/22—Manufacture or reconditioning of specific semi-finished or finished articles of sport articles, e.g. bowling pins, frames of tennis rackets, skis, paddles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30084—Milling with regulation of operation by templet, card, or other replaceable information supply
    • Y10T409/301176—Reproducing means
    • Y10T409/301624—Duplicating means
    • Y10T409/302464—Duplicating means including plural cutters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30084—Milling with regulation of operation by templet, card, or other replaceable information supply
    • Y10T409/302968—Milling with regulation of operation by templet, card, or other replaceable information supply including means for operation without manual intervention
    • Y10T409/303024—Milling with regulation of operation by templet, card, or other replaceable information supply including means for operation without manual intervention including simultaneously usable plural tracers or including tracer adapted to simultaneously use plural templets

Definitions

  • the present invention relates to a snow ski, a method for its manufacture, and a device for the implementation of this method.
  • a ski has a rectangular section, the lower face of which is delimited by the sliding sole, the upper face of which is delimited by a screen-printed covering wall, and the two lateral edges of which are delimited by edges.
  • metal edges are provided to improve the guiding conditions and the grip on hard snow and on ice.
  • skis whose edges are not perpendicular to the lower face and to the upper face, but inclined so as to form, over at least part of the length of the ski, an acute angle with the lower sole. .
  • This angle may have, at the ends of the ski - tip and heel - a value less than that which is found at the level of the skate.
  • skis with inclined edges have, when viewed in cross section, inclined rectilinear parts, possibly concave or convex, at the edges.
  • the present invention aims to provide a ski with inclined edges, characterized in that the profiles of the inclined zones of the edges formed by curved lines, convex or concave, have a variable curvature along the ski.
  • Such a structure makes it possible to influence the mechanical characteristics of the ski, its aesthetics and the resistance to wear of the upper edges.
  • skis with inclined edges present production difficulties.
  • a self with inclined edges can be obtained directly by molding in a shaped mold. In such a case, it is necessary to have an expensive tool, and difficult to implement for certain structures.
  • the present invention aims to remedy these drawbacks by providing a method and a device making it possible to obtain, by machining, a snow ski whose edges have a variable inclination relative to the plane of the ski sole, at different points of its length. and are formed by curved, convex or concave lines, the profiles of the edges having a variable curvature depending on the section considered of the ski.
  • the method of manufacturing a ski which it concerns consists, starting from a ski blank, in carrying out the machining of the lateral parts of the ski using a rotating tool with an axis perpendicular to the plane of the upper face of the ski, the active face of which is generated by a continuous monotonous curve, by carrying out a relative movement of the tool and of the ski simultaneously, in the direction of the length of the ski, in the direction of the width of the ski, and in a direction perpendicular to the plane of the upper face of the ski.
  • the relative movement of the tool and the ski, perpendicular to the plane of the upper face of the latter, makes it possible to vary the inclination of the edges and the radius of curvature thereof.
  • the machining is carried out at a more or less significant angle, relative to the plane of the sole and to the plane of the face. superior of skiing.
  • edge bure court can be constant over the entire length of the ski, insofar as the generatrix of the surface of revolution of the tool is an arc of a circle, or variable along the ski, in the measure where the generator is itself made from several sections of successive curves, plotted from mathematical formulas different from each other.
  • this method consists in achieving a relative movement of the ski and the tool, in the direction of the length of the ski, by displacement of the ski longitudinally with the tool, a relative movement in the direction of the width of the ski, by displacement sde of the tool relative to the ski, and a relative movement in a direction perpendicular to the plane of the ski, by deformation of the ski by bending, during the machining operation.
  • a device for implementing this process comprises means for positioning and clamping the ski to be machined, and means for moving the ski longitudinally with the tool, and for guiding the tool using a template, across the width of the ski.
  • the ski to be machined is shaped in the direction perpendicular to the plane of its upper face, by support and clamping in a cradle.
  • the ski shown in FIG. 1 is an alpine ski, having a tip 2, a shoe 3, and a heel area 4.
  • On the upper face of the ski there are mounted, in the central part thereof, bindings 5 , for a ski boot.
  • the ski according to the invention, comprises edges, that is to say lateral faces connecting the upper face 6 and the lower face 7, which are not perpendicular to these two faces as is usually the case, but which are inclined, this inclination being variable along the ski.
  • each edge 8a forms, as shown in FIG. 2, an angle A of less than 90 ° with the sole 7, while near the tip 2 and the heel 4, each edge 8b forms, as shown in FIG.
  • the edges are not formed by flat surfaces, but have, seen in cross section, a curved profile, in this case convex, corresponding to radii of curvature respectively R1 in the pad area and R2 in the tip areas and heel.
  • the ski is obtained from a roughly rectangular section blank, that is to say the edges of which are substantially perpendicular to the upper face 6 and to the lower face 7.
  • the ski itself even is produced by machining the blank using a tool which is shown in more detail in Figure 4.
  • This tool comprises a shaft 3. at the end of which is mounted an active part 10, comprising a surface of revolution concave 12, this surface of revolution being generated by a generator which is itself concave, which can be constituted either by an arc of a circle, or by a complex curve, the curvature of which is variable.
  • the variation in the inclination of the edges of the ski is obtained by carrying out relative displacements of each tool and of the ski: - a longitudinal displacement of the ski relative to each tool, - lateral movement of each tool relative to the ski, - A relative displacement of each tool and the upper plane of the ski, perpendicular to the plane of the ski.
  • Figures 5 to 7 show three positions of the ski relative to the tool, respectively in an area close to the tip, in the skate area, and near the heel.
  • the distance between the underside of the ski and the base of the tool has relatively large values H1 and H3 in the areas close to the tip and the heel.
  • the ski is in contact with the upper part of the active face of the tool, that is to say the part of the active face which is relatively slightly inclined by compared to the horizontal.
  • the underside of the ski is at a relatively short distance H2 from the base of the tool, so that the edge of the blank is in contact with a part of the active surface of the tool relatively close to the vertical.
  • the distance d2 between the median longitudinal axis of the ski and the axis of the tool is less in the shoe zone, as shown in FIG. 6, at the corresponding distances d1 and d3, figures 5 and 7, in the areas of the tip and the heel.
  • FIGS 5 and 9 show means for the implementation of this method.
  • FIG. 2 shows more specifically a cradle 15, hollow, in which a ski is kept pressed by clamping by support pads 16. It follows from this structure that, taking into account the hanger which is given to the ski, it occurs , during the longitudinal displacement of the cradle, a relative displacement in the height direction, of each tool and of the upper plane of the ski.
  • FIG. 9 shows a ski in top view: during machining, the transverse movement of each tool being produced by means of a guide roller 17 rises on the axis of the tool. resting on a template 12, the copying of which makes it possible to obtain, above the edges, the profile of the lateral parts of the ski.
  • the invention brings a great improvement to the existing technique, by providing a ski with an interesting structure, obtained by a simple and inexpensive method and device of implementation.
  • the invention is not limited to the sole embodiment of this ski, described above by way of example, nor to the sole embodiment of its manufacturing process, it also kiss at otherwise all variants.
  • the inclined surfaces could not be convex, but concave, that the tools arranged on either side of the ski could have a different profile in order to obtain a ski with asymmetrical profile, or even that the ski could be fixed and each tool displaceable longitudinally, without thereby departing from the scope of the invention.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Milling Processes (AREA)
  • Graft Or Block Polymers (AREA)
  • Golf Clubs (AREA)
  • Silicon Polymers (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Fishing Rods (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP90420422A 1989-09-29 1990-09-28 Ski, Verfahren zur Herstellung des Skis und Vorrichtung für die Ausführung Expired - Lifetime EP0420774B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90420422T ATE90584T1 (de) 1989-09-29 1990-09-28 Ski, verfahren zur herstellung des skis und vorrichtung fuer die ausfuehrung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8913228A FR2652507B1 (fr) 1989-09-29 1989-09-29 Ski de neige, procede pour sa fabrication et dispositif pour la mise en óoeuvre de ce procede.
FR8913228 1989-09-29

Publications (2)

Publication Number Publication Date
EP0420774A1 true EP0420774A1 (de) 1991-04-03
EP0420774B1 EP0420774B1 (de) 1993-06-16

Family

ID=9386254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420422A Expired - Lifetime EP0420774B1 (de) 1989-09-29 1990-09-28 Ski, Verfahren zur Herstellung des Skis und Vorrichtung für die Ausführung

Country Status (5)

Country Link
US (1) US5088755A (de)
EP (1) EP0420774B1 (de)
AT (1) ATE90584T1 (de)
DE (1) DE69001978T2 (de)
FR (1) FR2652507B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6257620B1 (en) * 2000-02-23 2001-07-10 Bernard Carroll Kenney High efficiency ski for sailing on snow or ice

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2665369B1 (fr) * 1990-08-06 1992-10-16 Salomon Sa Ski a face superieure convexe variable.
FR2703916B1 (fr) * 1993-04-16 1995-05-19 Rossignol Sa Ski comportant des chants et une coque supérieure.
US8251395B2 (en) * 2003-11-13 2012-08-28 Matthew Wade Ellison Gliding boards and methods of modifying gliding boards
US7641215B2 (en) * 2006-02-28 2010-01-05 Matthew Wade Ellison Ski and snowboard equipment system
DE102008034293A1 (de) * 2008-07-22 2010-01-28 Marker Völkl (International) GmbH Ski, insbesondere Abfahrtski
FR2952829B1 (fr) * 2009-11-20 2012-01-20 Salomon Sas Ski alpin

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2181061A1 (de) * 1972-04-21 1973-11-30 Nippon Musical Instruments Mfg
US3916965A (en) * 1972-05-04 1975-11-04 William Earl Attridge Apparatus for edge-shaping boards
FR2522976A1 (fr) * 1982-03-11 1983-09-16 Tua Ski Srl Ski de neige
FR2618078A1 (fr) * 1987-07-15 1989-01-20 Salomon Sa Ski a face superieure divergente

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US881793A (en) * 1906-08-03 1908-03-10 William T Adams Wood-molding machine.
FR1066428A (fr) * 1952-11-10 1954-06-04 Etude Soc Pour Appareil d'usinage électromécanique simple ou multiple particulièrement destiné au travail du bois, des matières plastiques et des métaux légers
BE539981A (de) * 1954-08-17
US3165976A (en) * 1961-10-30 1965-01-19 Wilhelm Grupp K G Werkzeug Und Template controlled machine tool
SU402462A1 (ru) * 1971-08-09 1973-10-19 Специальное конструкторское бюро проектированию деревообрабатывающих станков Всесоюзного научно исследовательского , конструкторского института деревообрабатывающего машиностроени Станок для обработки лыж
JPS5231994U (de) * 1975-08-29 1977-03-05
IT1226455B (it) * 1988-07-27 1991-01-16 Witox Spa Utensile per fresare, munito di portautensile inclinabile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2181061A1 (de) * 1972-04-21 1973-11-30 Nippon Musical Instruments Mfg
US3916965A (en) * 1972-05-04 1975-11-04 William Earl Attridge Apparatus for edge-shaping boards
FR2522976A1 (fr) * 1982-03-11 1983-09-16 Tua Ski Srl Ski de neige
FR2618078A1 (fr) * 1987-07-15 1989-01-20 Salomon Sa Ski a face superieure divergente

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6257620B1 (en) * 2000-02-23 2001-07-10 Bernard Carroll Kenney High efficiency ski for sailing on snow or ice

Also Published As

Publication number Publication date
US5088755A (en) 1992-02-18
FR2652507A1 (fr) 1991-04-05
DE69001978D1 (de) 1993-07-22
ATE90584T1 (de) 1993-07-15
EP0420774B1 (de) 1993-06-16
DE69001978T2 (de) 1993-09-23
FR2652507B1 (fr) 1991-12-13

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