EP4061575B1 - Procédé de commande d'un appareil pour réaffuter une carre en acier d'un ski - Google Patents

Procédé de commande d'un appareil pour réaffuter une carre en acier d'un ski Download PDF

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Publication number
EP4061575B1
EP4061575B1 EP20811516.2A EP20811516A EP4061575B1 EP 4061575 B1 EP4061575 B1 EP 4061575B1 EP 20811516 A EP20811516 A EP 20811516A EP 4061575 B1 EP4061575 B1 EP 4061575B1
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EP
European Patent Office
Prior art keywords
ski
grinding
edge
length
edge angles
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.)
Active
Application number
EP20811516.2A
Other languages
German (de)
English (en)
Other versions
EP4061575A1 (fr
Inventor
Gerald HÖCKNER
Andreas MITTERBUCHER
Johann Aigner
Robert Berger
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.)
Wintersteiger Sports GmbH
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Wintersteiger Sports GmbH
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.)
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Publication date
Application filed by Wintersteiger Sports GmbH filed Critical Wintersteiger Sports GmbH
Publication of EP4061575A1 publication Critical patent/EP4061575A1/fr
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Publication of EP4061575B1 publication Critical patent/EP4061575B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/006—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools for edges of skis, snowboards or the like
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C11/00—Accessories for skiing or snowboarding
    • A63C11/04—Accessories for skiing or snowboarding for treating skis or snowboards
    • A63C11/06—Edge-sharpeners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/12—Electrically powered or heated
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/18—Measuring a physical parameter, e.g. speed, distance
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/24—Processing or storing data, e.g. with electronic chip

Definitions

  • the invention relates to a method for controlling a device for regrinding a steel edge of a ski with a ski holder and at least one grinding device which can be displaced in the longitudinal direction of the ski under a feed relative to the ski holder and which is rotatably mounted about an axis running in the feed direction and is connected to a pivot drive , which uses a control device to rotate the grinding device to adjust the edge angle depending on its position in relation to the ski length.
  • the guide of the adjusting slide holding the grinding wheel which is perpendicular to the feed direction of the ski relative to the grinding device, is rotatably mounted about an axis running in the feed direction and is pivoted by a regulated stepper motor via a low-backlash gear in accordance with the required edge angles in each case by the stepper motor using a control device in Depending on the position of the grinding wheel based on the ski length.
  • the adjusting slide can be controlled by controlling the stepper motor aligned with the steel edge to be regrinded in such a way that the grinding wheel grinds the steel edge with a predetermined edge angle that changes over the length of the ski, both in the side and in the lower edge area, in order to be able to adapt the driving and guiding behavior of the ski to different requirements.
  • the possibility of regrinding the steel edges with edge angles that vary over the length of the ski comes with the disadvantage of considerable control effort because separate control programs must be provided for each type of ski and each length of ski.
  • the invention is therefore based on the object of designing a method for controlling a device for regrinding the steel edges of skis in such a way that, in particular, the effort associated with adjusting the edge angle depending on the position of the grinding device in relation to the respective ski length can be reduced.
  • the invention solves the problem in that the steel edge is reground in at least three grinding areas with different edge angles, and the feed paths of the ski holder relative to the grinding device for the individual grinding areas are based on the actual length of the ski to be reworked predetermined grinding areas based on a standard ski length for the different edge angles are determined and that the swivel drive for adjusting the angular position of the grinding device is controlled by the control device depending on the feed path and the edge angles assigned to these feed paths.
  • the invention is based on the knowledge that the driving behavior of a ski depends, among other things, on the edge angles of the steel edges in a middle area associated with the binding and in the end areas of the ski, with larger side edge angles in the binding area and smaller lower edge angles in the end areas Generally an aggressive one Support driving behavior, so that for good, sporty drivers larger side edge angles of e.g. B. 85° to 87° in the middle ski area and lower bottom edge angles of e.g. B. 0.3° to 0.5° can be provided in the end areas, while the handling of a ski can be adapted to less experienced skiers, for example with side edge angles of 88° to 89° in the middle ski area and bottom edge angles of up to 3° in the area of the ski ends can.
  • the grinding areas for the different edge angles can be related to a standard ski length.
  • the feed paths related to an actual ski length for the individual grinding areas can be easily determined from the grinding areas related to a standard ski length and the actual ski length and the control of the swivel drive for the adjustment Edge angles can be specified depending on the feed paths.
  • the control device only needs to specify the actual ski length, either by input or by transmitting measurement data.
  • a sensitive adjustment of the edge angle progression over the ski length can be achieved by providing five grinding areas distributed over the ski length, because in this case transition areas can be provided between the middle grinding area and the end areas, each with constant edge angles, in which a continuous transition of the edge angles between can be ground in the middle and end grinding areas.
  • the control device can select different edge angles for the include individual grinding areas and control the swivel drive depending on a selection of these edge angles.
  • the different types of skis can also be taken into account, which differ in particular in the length and radius of curvature of the edges.
  • the properties of these types of skis which can be distinguished in particular according to their use for slalom or giant slalom turns or for downhill runs, can be taken into account in that the control device includes data sets tailored to different types of skis for grinding areas related to a standard ski length for different edge angles and depending on the type of ski to be regrinded Swivel drive for the grinding device is controlled with the feed paths and edge angles determined from the data set for this type of ski.
  • the device for regrinding the steel edges 1 of a ski 2 comprises, according to the Fig. 1 and 2 a base frame 3, which has guides 4 for two carriages 5 provided on both sides of the ski, only one of which is shown. These carriages 5 are adjusted symmetrically to a central plane 6 according to the width of the ski 2 to be processed and carry support rollers 7, against which the ski 2 with its running surface is held down by a hold-down device.
  • the feed carriage which accommodates the ski 2 and conveys it in the feed direction v through the device and is not shown for clarity, is pressed in a manner suitable for processing.
  • a carrier 8 is rotatably mounted in the carriage 5, namely by means of a shaft 9 parallel to the feed direction v.
  • An adjusting arm 10 is pivotally mounted on the carrier 8, which can be pivoted using a swivel cylinder 11 and a grinding device 12 in the form of one Motor 13 drivable, cup-like grinding wheel 14 on a pendulum axis 15.
  • the storage of the cup-like grinding wheel 14 with its drive motor 13 via the pendulum axis 15 causes the grinding wheel 14 to be supported on the front side in the area of two circumferential sections on the steel edge 1 of the ski 2, which runs in a chord-like manner relative to the grinding wheel 14, which means that the cup-like grinding wheel 14 can be adjusted independently the pendulum axis 15 is also permitted in the waisted area of the ski 2.
  • the adjusting arm 10 forms an articulated parallelogram with a leg 16 articulated on the carrier 8, the coupling 17 of which specifies the basic orientation for the grinding device 12.
  • the motor 13 is supported relative to the coupling 17 by a spring 18, which allows the grinding wheel 14 to be deflected about the pendulum axis 15, but ensures that it is returned to the basic alignment after a deflection.
  • a pivot cylinder 19 is provided, which engages a pivot arm 20 of the shaft 9 and allows a stop-limited pivoting of the shaft 9, preferably by 90 °, so that the grinding device 12 can be moved from the working position shown for regrinding the side edges the steel edge 1 can be pivoted into a working position for grinding the lower edge of the steel edge 1.
  • the swivel cylinder 19 is placed on a Eccentric shaft 21 is mounted, which can be driven by a swivel drive 22, for example in the form of a geared motor. If the eccentric shaft 21 is rotated via the pivot drive 22 during the grinding process, the edge angle determined by the inclination of the grinding device 12 around the shaft 9 is changed.
  • the pivot drive 22 In order to be able to grind different edge angles ⁇ and ⁇ in sections over the length of the ski 2, the pivot drive 22 must be controlled via a control device depending on the one hand on the feed path of the ski 2 relative to the grinding device 12 and on the other hand on the edge angles ⁇ , ⁇ associated with the individual grinding areas become. So that the feed paths for the individual grinding areas of different edge angles ⁇ and ⁇ can be determined with comparatively little effort, these grinding areas provided for specific edge angles ⁇ , ⁇ are related to a standard ski length, so that the feed paths associated with the individual grinding areas for a ski of a certain length The given division of these grinding areas over the ski length can be adhered to as specified if the grinding areas based on a standard ski length are offset against the actual length of the ski to be processed.
  • the edge angle ⁇ for the side edge of the steel edge 1 is plotted over the unit length of a ski 2 specified as 100 units on the abscissa s.
  • the ski 2 is divided into five grinding areas, of which the middle grinding area 23 and the end grinding areas 24, 25 are to be processed with edge angles ⁇ that are the same but different in these grinding areas, while in the transition areas 26, 27 in between there is a gradual transition between the different edge angles ⁇ of the grinding areas 24, 26 or 27, 25 should be ground.
  • the grinding areas and angle specifications can be specified differently depending on the respective type of ski, so that each type of ski has its own data set which contains the grinding areas related to a standard ski length with their edge angles in order to be able to grind skis of the respective type accordingly based on the correspondingly selected data sets.
  • the edge angles can be tailored to the skiing ability, which requires the storage of appropriate data sets for, for example, beginners, average skiers and sporty skiers.
  • the method according to the invention is of course not limited to the device shown for regrinding the steel edges of a ski.
  • other grinding devices could be used for grinding the edge angles.
  • separate grinding devices can be provided for grinding the side edge angles and the bottom edge angles, which are arranged one behind the other in the feed direction v.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Claims (4)

  1. Procédé de commande d'un dispositif pour réaffûter une carre en acier (1) d'un ski (2) avec un réceptacle de ski et au moins un système d'affûtage (12) pouvant coulisser sous l'effet d'une avance par rapport au réceptacle de ski dans la direction longitudinale du ski, qui est monté de manière rotative autour d'un axe courant dans la direction d'avance (v) et est relié à un mécanisme de pivotement (22) qui fait pivoter le système d'affûtage (12) à l'aide d'un système de commande pour régler l'angle de carre (α,β) en fonction de sa position par rapport à la longueur du ski, caractérisé en ce que la carre en acier (1) est réaffûtée dans au moins trois zones d'affûtage (23, 24, 25) avec des angles de carre (α,β) différents, qu'à l'aide de la longueur réelle du ski à réaffûter (2), les trajets d'avance du réceptacle de ski par rapport au système d'affûtage (12) sont déterminés pour les différentes zones d'affûtage (23, 24, 25) à partir de zones d'affûtage (23, 24, 25) prédéfinies relatives à une longueur de ski standard pour les différents angles de carre (α,β) et que le mécanisme de pivotement (22) est contrôlé par le système de commande pour régler la position angulaire du système d'affûtage (12) en fonction du trajet d'avance et des angles de carre (α,β) associés à ces trajets d'avance.
  2. Procédé selon la revendication 1, caractérisé en ce que la carre en acier (1) est réaffûtée dans cinq zones d'affûtage, à savoir dans une zone d'affûtage centrale (23) et dans deux zones d'affûtage d'extrémité (24, 25) ainsi que dans deux zones intermédiaires (26, 27) situées entre les zones d'affûtage d'extrémité (24, 25) et la zone d'affûtage centrale (23).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le système de commande comprend un choix de différents angles de carre (α,β) pour les diverses zones d'affûtage (23 à 27) et contrôle le mécanisme de pivotement (22) en fonction d'un choix de ces angles de carre (α,β).
  4. Procédé selon une des revendications 1 à 3, caractérisé en ce que le système de commande comprend des jeux de données adaptés à différents types de skis pour des zones d'affûtage (23 à 27) relatives à une longueur de ski standard pour différents angles de carre (α,β) et, en fonction du type de ski à réaffûter (2), contrôle le mécanisme de pivotement (22) pour le système d'affûtage (12) avec les trajets d'avance et les angles de carre (α,β) déterminés à partir du jeu de données pour ce type de ski.
EP20811516.2A 2019-11-22 2020-11-17 Procédé de commande d'un appareil pour réaffuter une carre en acier d'un ski Active EP4061575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA51012/2019A AT523052B1 (de) 2019-11-22 2019-11-22 Verfahren zur Steuerung einer Vorrichtung zum Nachschleifen einer Stahlkante eines Skis
PCT/AT2020/060407 WO2021097508A1 (fr) 2019-11-22 2020-11-17 Procédé de commande d'un appareil pour réaffuter un bord en acier d'un ski

Publications (2)

Publication Number Publication Date
EP4061575A1 EP4061575A1 (fr) 2022-09-28
EP4061575B1 true EP4061575B1 (fr) 2024-01-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20811516.2A Active EP4061575B1 (fr) 2019-11-22 2020-11-17 Procédé de commande d'un appareil pour réaffuter une carre en acier d'un ski

Country Status (3)

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EP (1) EP4061575B1 (fr)
AT (1) AT523052B1 (fr)
WO (1) WO2021097508A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113814803B (zh) * 2021-10-19 2024-05-28 广东三观山精密机械有限公司 一种全自动开刃机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679356A (en) * 1986-05-09 1987-07-14 Thomas Jacques B Automatic ski tuning device
DE3827977C1 (en) * 1988-08-18 1989-04-27 Reichmann + Sohn Gmbh, 7912 Weissenhorn, De Machine for grinding the surfaces, running parallel to the running surfaces, of the steel edges of a ski
DE8815011U1 (de) * 1988-12-02 1989-01-19 Reichmann + Sohn GmbH, 7912 Weißenhorn Vorrichtung zum Schleifen der Stahlkanten eines Skis
AT409090B (de) * 1996-07-25 2002-05-27 Wintersteiger Gmbh & Co Vorrichtung zum nachbearbeiten einer stahlkante eines skis
AT413802B (de) * 2004-01-30 2006-06-15 Wintersteiger Gmbh & Co Vorrichtung zum nachbearbeiten einer stahlkante eines skis
FR2958174B1 (fr) * 2010-03-30 2012-04-06 Jean Pierre Bocquet Mecanisme d'affûtage de carres laterales de ski par disque abrasif a lamelles
CN107685270B (zh) * 2017-11-20 2023-08-15 威海晶瑞塑胶科技有限公司 滑雪板侧面自动磨削装置

Also Published As

Publication number Publication date
AT523052B1 (de) 2021-05-15
AT523052A4 (de) 2021-05-15
EP4061575A1 (fr) 2022-09-28
WO2021097508A1 (fr) 2021-05-27

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