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EP0193080A2 - Ski de fond - Google Patents

Ski de fond Download PDF

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Publication number
EP0193080A2
EP0193080A2 EP86102058A EP86102058A EP0193080A2 EP 0193080 A2 EP0193080 A2 EP 0193080A2 EP 86102058 A EP86102058 A EP 86102058A EP 86102058 A EP86102058 A EP 86102058A EP 0193080 A2 EP0193080 A2 EP 0193080A2
Authority
EP
European Patent Office
Prior art keywords
ski
cross
central part
country
country ski
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Withdrawn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
EP86102058A
Other languages
German (de)
English (en)
Other versions
EP0193080A3 (en
Inventor
Günter Adam
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.)
Puma SE
Original Assignee
Puma AG Rudolf Dassler Sport
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 Puma AG Rudolf Dassler Sport filed Critical Puma AG Rudolf Dassler Sport
Publication of EP0193080A2 publication Critical patent/EP0193080A2/fr
Publication of EP0193080A3 publication Critical patent/EP0193080A3/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Withdrawn legal-status Critical Current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
    • A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/02—Skins; Substitutes for skins
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/005—Devices preventing skis from slipping back, actuated by the boot

Definitions

  • Such a cross-country ski is known from DE-OS 27 32 091.
  • a longitudinal chamber at the bottom.
  • an adapted longitudinal bar is mounted perpendicular to the direction of movement.
  • the underside of the longitudinal bar is curved outwards and presses by the spring force on an elastically deflectable intermediate layer which seals the longitudinal chamber.
  • On the ski binding which is attached to the completely smooth surface of the ski, there is a lever that protrudes forward and pulls the longitudinal bar upwards when the boot is completely on, i.e.
  • a slit is made in the middle part of the ski from top to bottom with a width corresponding to approximately half the width of the ski.
  • a longitudinal bar is movably mounted in this in the longitudinal direction and perpendicular to the tread by means of hinge tabs.
  • a pull lever is attached to the longitudinal bar and can be pivoted about an axis of rotation mounted in the ski center part in the ski walls remaining to the side of the slot.
  • the top part of the ski binding also engages the drawbar.
  • the ski body has a particularly stiff "bridge" in its middle section, which during the gliding phase interacts as little as possible with the snow surface and at the same time offers the possibility to pick up the climbing aids (climbing wax, scales or fur strips). Nevertheless, it cannot be prevented that these climbing aids also come into engagement with the snow surface during the sliding phase and thus produce an undesirable braking effect.
  • the compromise also lies in the fact that this stiff bridge depends on Stiffness in the push-off phase can only be brought into contact with the snow surface in a more or less difficult manner in order to optimize the desired push-off effect.
  • the present invention is intended to avoid the above-mentioned disadvantages of the known cross-country skis.
  • the cross-country ski according to the invention is to be improved in such a way that simple means ensure good power transmission between the ski and snow cover, especially and preferably in the first push-off phase, without the risk that the movable middle part is deactivated, for example in the event of icing.
  • the cross-country ski should have very good gliding properties in the gliding phase, which are not at least partially nullified by contrary means, such as climbing aids.
  • the actual ski body can be designed as a pure sliding ski (like an alpine ski), since the movable middle part is completely out of engagement with the snow surface during the sliding phase. This allows the latter to be provided with an extremely grippy profile and, moreover, can be brought into contact with the snow immediately without great effort in the push-off phase.
  • Both the actual gliding ski and the moving means So some can be optimized according to the corresponding tasks.
  • the middle section does not interfere with the sliding phase and immediately engages with the snow surface over a large area in the push-off phase.
  • the slots 3, 4 can be filled by elastically deformable, inserted, glued, injected or cast in spacer elements 8, 9 so that no snow or ice can settle there.
  • the spacer elements 8, 9 are preferably snow and water repellent and / or made of a material that does not absorb moisture. They are preferably porous and have an impermeable outer skin and / or they consist of foam with closed pores.
  • the toe binding 10 is mounted on the middle part 5 in an elevated manner relative to the surface 11 of the side parts 6, 7 and the spaces 13, 14 formed thereby between the underside 12 of the toe binding 10 and the surfaces 11 can also be provided with spacer elements 15, 16, preferably with the same properties as the spacer elements 8, 9 must be filled.
  • the increased arrangement can be increased by a hard base to be provided between the toe binding 10 and the middle part 5 or by a molding on the toe binding 10 so that in the push-off phase the grip profile and / or the covering beyond the sliding surface of the ski in any case the snow is pressed in and a particularly effective adhesion is created.
  • the direct or indirect surface of the middle part 5 should therefore always be higher than that of the side parts 6, 7, for example by 1-5 mm.
  • the central part 5 can also be thicker than the thickness of the side parts 6, 7. In the exemplary embodiment according to FIGS. 1 and 2, however, the central part 5 is curved upwards and is thus designed as an even better-acting spring part. In this In this case, the toe binding 10 can be applied directly to the middle part 5, as shown in FIG. 2.
  • the central part 5 is resiliently pretensioned or held by internal tension and, if appropriate, by the spacer elements 8, 9, 15, 16 in such a way that the tread 17 is only pressed down so far when the entire body weight and possibly also a repulsive force or - component acts on the middle part 5.
  • This total strength is given regularly in the push-off phase, especially in the beginning area and is independent of the shoe position.
  • the repulsive force or component is released via the ball of the shoe or ball of the foot, that is to say even with the heel 18 lifted off minimally.
  • the spacer elements 8, 9, 15, 16 are deformed accordingly.
  • the middle part 5 with the tread 17 automatically lifts off the snow cover due to the resilient arrangement of the middle part 5 and the ski only slides on the smooth treads.
  • a rocker is designed on the Side parts 6, 7 pivotally mounted about an axis 21, rearwardly projecting lever 22 is provided, which extends under the paragraph 18.
  • a slot 23 for centering the lever 22 is preferably provided in the shoulder 18.
  • an elastic, tight spacing element 24 can be provided between the lever 22 and the ski 1 or between the middle part 5, the pivot bearing 21 and the ski 1.
  • the profile of the lever 22 on the downward-facing outer surface 22 ′ and possibly also on the upward-facing outer surface may have a snow-repellent and possibly solid snow and ice-dividing profile. This can suitably be acute-angled or elliptical.
  • the central part 5 ' is at its front end 25 either via an elastic, tight spacing element 26 serving as a pivot bearing or directly in one piece, for example by cutting the remaining central part 5' out of the ski 1 with the Ski 1 connected.
  • the rear space 27 is closed by an elastic, dense spacer 28.
  • the latter also serves to press the middle part 5 'with the ball area, with a corresponding pressure on the middle part 5', in particular pivoting downward about the front fastening (arrow 29).
  • a lever 22 can be provided.
  • a mechanical spring element such as a spiral spring, plate spring or a spring element having the same effect, can also be provided. Such designs will be described later with reference to FIGS. 6 to 9. With appropriate training and maintaining the advantages mentioned, the pivot point can also be provided at the rear end 25 a.
  • the middle part 5 ′ advantageously runs obliquely upwards from the front to a rear end piece 30, the end piece 30 being preferably located above the surface 31 of the ski body 1 in part.
  • this is preferably mounted between the heel or heel 18 and the ball on the side parts 6, 7 and is firmly connected between the bearing point 21 and the toe binding 10 with the middle part 5 or 5 '.
  • the bearing point 21 is thus between the paragraph 18 and the fastening point 32 of the lever 22 on the central part 5 or 5 1.
  • the prestressing of the central part 5 or 5 ' can be set and / or increased or decreased by means of additional spring elements or existing spacer elements 26, 28.
  • additional spring elements or existing spacer elements 26, 28 Such designs with a mechanical spring element 33, for example as a spiral spring, formed spacer are shown in Figs. 6 to 9.
  • a clamping bracket 34 is fastened to the middle part 5 'at the rear.
  • a spiral spring 33 is clamped between its upper, approximately horizontal leg 35 and the ski surface 31. Conveniently, this is interchangeable with another spiral spring with a lower or higher spring constant.
  • the pretension of this spiral spring 33 can be adjusted in that the upper end 36 is mounted in an upper adjusting plate 37 and the height of the latter can be adjusted via the screw shaft 38 of an adjusting device designed, for example, as an adjusting screw 39.
  • the adjusting screw 39 can be screwed into the leg 35 and press the screw shaft end against the adjusting plate 37, these parts being rotatably but axially immovably connected to one another.
  • the adjusting screw 39 may also be expedient for the adjusting screw 39 to be rotatably and axially immovable in the leg 35 and for the adjusting plate 37 to be screwable onto the screw shaft 38. This has the advantage that the screw head does not protrude or does not protrude far beyond the leg 35.
  • the desired effect can be adapted relatively precisely to the weight, the ability and the repulsive force of the skier.
  • the pretension can be set so that the central part 5 or 5 'can only be pushed into the active position when the foot pad is subjected to a higher load than about the entire body weight.
  • a spring element made of two spiral springs 33 is provided in front of the toe 40.
  • the clamping bracket 34 is formed by a simple plate which is attached to the central part 5 or 5 '.
  • the spring element 33 can also be provided at a suitable location between the heel 18 and the toe 40. In this case, the arrangement is covered by the shoe when driving and is therefore better protected.
  • the shoe can preferably also have a cutout if the bracket 34 protrudes strongly beyond the central part 5 or 5 '.
  • the spring element 33 and possibly the free space formed by the bracket 34 can be protected by an elastic sheath or this free space can be completely filled with a material corresponding to the material of the spacer elements 8, 9, 15, 16, 24, 26, 28 be.
  • the middle part 5 or 5 1 is molded on during the manufacturing process of the ski, so that a resilient middle part 5 or 5 connected to the ski body 1 at both ends or only at the front end 25 or only at the rear end 25a ', may be obtained with the desired curvature upwards or the arrangement rising obliquely to the rear or to the front.
  • the spacer elements 8, 9 and possibly 26, 28 are introduced later in a suitable manner.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP86102058A 1985-02-19 1986-02-18 Cross-country ski Withdrawn EP0193080A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3505666 1985-02-19
DE3505666 1985-02-19

Publications (2)

Publication Number Publication Date
EP0193080A2 true EP0193080A2 (fr) 1986-09-03
EP0193080A3 EP0193080A3 (en) 1987-03-25

Family

ID=6262910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102058A Withdrawn EP0193080A3 (en) 1985-02-19 1986-02-18 Cross-country ski

Country Status (4)

Country Link
US (1) US4717167A (fr)
EP (1) EP0193080A3 (fr)
FI (1) FI860721L (fr)
NO (1) NO860611L (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198650A (en) * 1986-12-19 1988-06-22 Secr Defence Skis
EP0300092A3 (en) * 1987-07-22 1989-06-07 Junginger Georg Brake device for a cross-country-ski
DE4438636C1 (de) * 1994-10-30 1995-12-21 Gerhard Dipl Ing Lippich Vorrichtung zum Verhindern des Zurückgleitens eines Skis
WO2010063246A3 (fr) * 2008-12-05 2010-08-19 Jiri Popel Ski pourvu d’un système d’escalade, en particulier ski de fond
US11065528B2 (en) 2018-09-18 2021-07-20 Stephen S. Daniell Thrust-responsive surface material for skis

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10328331B2 (en) 2015-06-12 2019-06-25 Douglas A. Hitch Mechanical traction for a cross-country ski

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE387857B (sv) * 1975-01-30 1976-09-20 H E Larsson Skida
DE2548667A1 (de) * 1975-10-30 1977-06-16 Trak Sportartikel Gmbh Skibremse
DE2732091A1 (de) * 1977-07-15 1979-02-01 Martin Dipl Ing Mueller Hafteinrichtung fuer ski-laufflaechen
CH640742A5 (en) * 1979-11-12 1984-01-31 Arnold L Wyler Apparatus for influencing the ground contact on skis, especially cross-country skis
DE3002969A1 (de) * 1980-01-29 1981-07-30 Georg 7867 Wehr Wunderle Schaltbindung fuer langlaufski
DE3134051A1 (de) * 1981-08-28 1983-03-10 Gisela 7730 Villingen-Schwenningen Schleuder Langlaufski, die in eine gleit- und schubphase umschaltbar sind, abhaengig von der fussstellung
DE3142623A1 (de) * 1981-10-28 1983-05-05 Friedrich Dr.-Ing. 3000 Hannover Kaufmann Ski mit rueckgleitsicherung
AT381031B (de) * 1982-09-24 1986-08-11 Amf Sport Freizeitgeraete Vorrichtung zum verhindern des zurueckgleitens eines ski
FI831452A0 (fi) * 1983-04-27 1983-04-27 Kari Uolevi Helin Skida

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198650A (en) * 1986-12-19 1988-06-22 Secr Defence Skis
EP0300092A3 (en) * 1987-07-22 1989-06-07 Junginger Georg Brake device for a cross-country-ski
DE4438636C1 (de) * 1994-10-30 1995-12-21 Gerhard Dipl Ing Lippich Vorrichtung zum Verhindern des Zurückgleitens eines Skis
WO2010063246A3 (fr) * 2008-12-05 2010-08-19 Jiri Popel Ski pourvu d’un système d’escalade, en particulier ski de fond
US8333403B2 (en) 2008-12-05 2012-12-18 Jiri Popel Ski with a climbing system, particularly a cross-country (XC) ski
US11065528B2 (en) 2018-09-18 2021-07-20 Stephen S. Daniell Thrust-responsive surface material for skis
US11511178B2 (en) 2018-09-18 2022-11-29 Stephen S. Daniell Thrust-responsive surface material for skis

Also Published As

Publication number Publication date
FI860721A7 (fi) 1986-08-20
NO860611L (no) 1986-08-20
FI860721A0 (fi) 1986-02-18
EP0193080A3 (en) 1987-03-25
FI860721L (fi) 1986-08-20
US4717167A (en) 1988-01-05

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Inventor name: ADAM, GUENTER