EP0855202A2 - Fixation à suspension pour des skis, des big-foots et des planches de glisse - Google Patents

Fixation à suspension pour des skis, des big-foots et des planches de glisse Download PDF

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Publication number
EP0855202A2
EP0855202A2 EP98810040A EP98810040A EP0855202A2 EP 0855202 A2 EP0855202 A2 EP 0855202A2 EP 98810040 A EP98810040 A EP 98810040A EP 98810040 A EP98810040 A EP 98810040A EP 0855202 A2 EP0855202 A2 EP 0855202A2
Authority
EP
European Patent Office
Prior art keywords
spring
leaf spring
shoe
shaped
binding
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Withdrawn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
EP98810040A
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German (de)
English (en)
Inventor
Thomas Allmendinger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0855202A2 publication Critical patent/EP0855202A2/fr
Withdrawn legal-status Critical Current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
    • A63C9/00—Ski bindings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C1/00—Skates
    • A63C1/22—Skates with special foot-plates of the boot
    • A63C1/26—Skates with special foot-plates of the boot divided into two parts permitting adjustment to the size of the foot
    • 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 invention relates to a sprung binding for skis, «Big Foots »and snowboards according to the preamble of the patent claim 1 and leaf springs according to the preamble of claims 9 and 10.
  • Binding technology is generally less developed than with Ski.
  • security bonds are rare there used, namely only with so-called «hard boots».
  • ankle injuries are more common than with skis, the question arises of cushioning the shoe - and with a relatively large travel - in particular to.
  • the carving skis and for normal alpine skis suspension of the shoe or the binding may be advantageous, generally leaves them better adapted to the slopes - especially with bumps in curves - expect that the Grab skis better.
  • blows due to Slope bumps are caught, causing an increase driving comfort and a reduction in health risks leads.
  • a leaf spring is used as a spring element suggested which in an area in front of the toe the ski surface is attached and, at an acute angle from the ski lifting, leading under the shoe backwards, i.e. one forms a wedge-shaped gap.
  • the real bond for the Shoe is on or along the surface of this leaf spring attached. Similar to the natural movement of the foot, it bobs Heel area of the shoe up and down while the Toe area only slightly moved.
  • the shoe heel lies far away from the place of attachment of the spring and exercises as a result of long lever a considerable force on the bend of the Leaf spring, which causes material problems.
  • the leaf spring shape shown in the figure has two geometric turning points and is the best way to do it with the side view of a kneeling, using the torso compare the people supporting the poor, whereby only the Lower leg, knee, thigh, buttocks and the Upper body should be considered, but not the arms and the Head, and being attached to the lower leg on the one hand and on the other hand with the upper body.
  • the lower end of the Spring thus points against the direction of travel to the rear.
  • This Leaf spring shape is extremely problematic, she points out not just a highly non-linear characteristic, but also - in the form of a clear kink in the knee area - a potential breaking point.
  • the object of the present invention is now to create a spring-loaded binding with a leaf spring on the back which does not have the disadvantages of the inventions already known or which combines the advantages of individual previous inventions.
  • the object is achieved with the aid of the inventive training features of claim 1 and claims 9 and 10.
  • Advantageous developments of the invention are the subject of the respective dependent features.
  • the spring-loaded shoe binding for skis, “big feet” and snowboards is characterized in that an essentially u-shaped or v-shaped leaf spring or a pair of leaf springs is provided between the sole of the shoe and the ski or snowboard in the rear region of the shoe, which in the continuation of the sole direction or slightly angled towards it protrudes to the rear. Furthermore, an at least partially flexible or foldable connection is provided in the front area of the shoe, which acts as a hinge during the spring process.
  • a basic idea in the proposed construction is therefore to provide suspension only in the heel area - not also in the toe area - and thereby almost completely utilize the sparse space in the heel for the spring travel.
  • the two legs of the U and the V need not be of the same length, ie the spring can be designed asymmetrically.
  • a slightly angled orientation of the spring projecting backwards is at most possible, because here the shoe soles do not run parallel to the longitudinal direction of the board, which results in a rotation of the force vectors.
  • the space is also different from that of skis. Since the suspension is preferably not part of the shoe but part of the binding, in most cases additional spacers are required which allow the shoe to be fixed, ie serve as the actual binding.
  • Shoe is locked against displacement to the rear; be it at the tip of the shoe or in the heel area, in that the leaf spring is attached so solidly that it cannot tip backwards.
  • a special shoe must be available, which is similar in design to a cross-country shoe.
  • a more compact embodiment is when the upper hinge leg is formed by a separate rod or an elongated plate, preferably by a rod, which is connected to the ski or snowboard via a hinge at the front and via the spring at the rear and on which Both swivel plate including front jaws and automatic heel are mounted.
  • the binding can easily be adapted to the shoe size by varying the position of the automatic heel unit, preferably by means of an adjusting screw.
  • a particular advantage of this embodiment is also that conventional ski stoppers can be provided on the rod or the elongated plate in a simple manner, or at least stoppers which are similar to the conventional ones and only have longer extensions.
  • the suspension according to the invention can also be used in cases where no fixation of the shoe is required or desired in the heel area, for example in cross-country skis, touring skis or skis for ski jumping.
  • the upper side of the essentially U-shaped or V-shaped leaf spring then serves as a spring-loaded platform on which the heel of the shoe steps under load.
  • the upper spring leg is advantageously provided relatively high up in the automatic heel unit or above any hinge rod in order to ensure an optimal span of the spring.
  • the leaf spring legs can be attached, for example, by means of screws.
  • the spring can also be rotatably mounted at one, preferably at the upper, or at both fastening points. This is preferably done via one axis each.
  • a rotatable mounting can also come about, for example - if less pronounced - that a flexible intermediate layer made of an elastomeric material is provided at the location of the attachment between the leaf spring leg and the base, so that the leg can be pivoted somewhat in the vertical plane while remaining immovable in the horizontal plane.
  • the spring can also have an additional safety function in the Take a sense of a security bond by attaching it is provided in such a way that if there is excessive tension notches upwards. This can be accomplished, for example be that at the end of the upper spring leg one in Normal position approximately horizontal notch is provided in which one at the rear end of the binding or the hinge leg attached bolt fits. With excessive heel pull, so if the driver falls forward, the bolt can release.
  • the combination of bolt / notch also provides a simple one Possibility of a rotatable mounting of the upper leaf spring leg represents.
  • the spring strength depends, among other things, on the length of the leaf spring legs, since a leverage occurs during the spring process. This can now be used to bring about an adjustability of the spring strength in a simple manner, namely by the fact that the legs of the substantially u-shaped or V-shaped leaf spring at different, adjustable distance from the rounding of the U or the tip of the V are fixable. If, for example, screws are used for fixation, this can easily be accomplished by means of slots or rows of holes, which are provided either in the spring legs or in the parts serving to fasten them, i.e. in the chassis or in the shoe sole, the position of the spring being tightened the screws can be fixed. Plug connections with fixation options in different positions are also conceivable.
  • the two legs must run parallel, preferably horizontally, in the area of their adjustability or displaceability. This can be accomplished by appropriate shaping of the leaf spring legs.
  • the spring strength can also be changed simply by inserting a wedge, preferably made of rubber or plastic, between the ski or snowboard and the lower leg of the U or V, various settings being possible with a set of wedges.
  • the more obvious leaf spring shape is the U-shape. It is already used for other applications or in combination with components of a different nature than the ones according to the invention, albeit rarely.
  • This is understood here to mean a structure made of a band-shaped, resilient material which has a round region and straight ends, or at least none which point to the rear against the direction of travel.
  • this U does not necessarily have to be completely symmetrical, but can also have an asymmetry as a result of legs of different lengths and / or shapes, not least also for design reasons.
  • leaf springs modified from an ideal U are also conceivable, in particular those where the lower leg of the U points from its attachment point backwards / upwards at an acute angle, so that a spring effect can also be developed in the initial region of the lower leg.
  • a U-shape is associated with basic weaknesses with regard to lateral twisting possibilities (shearability), which is disadvantageous for the grip on the skis.
  • U-shaped leaf spring The shearability of a U-shaped leaf spring can be explained as follows: If you take an elongated paper strip as a model for the leaf spring material and place it on a smooth surface, e.g. on a table top, its two narrow ends are practically not movable against each other. If, on the other hand, a U is formed with this strip, that is to say a three-dimensional arrangement in contrast to the previous two-dimensional arrangement, the strip ends which are now opposite one another can be deflected parallel to one another while largely maintaining their mutual distance, with the rounding being rotated. It goes without saying that this effect can be reduced by a general reinforcement of the leaf spring material; only then is the feather softness reduced at the same time.
  • a further, fixing element can be, for example, a rod made of a hard material, preferably made of a metal or an impact-resistant plastic, which is at least as long as the leaves are wide and in which two slots or notches are inserted along to fix the leaves.
  • the rod can have a round or another cross section, preferably adapted to the spring shape.
  • the whole, ie the arrangement of the two leaf spring parts and the fixing element, can also be provided from a single, cast or welded material. It then looks like a single leaf spring with a reinforcement or thickening in the area of the curvature. In a refined embodiment, this thickening can also be designed to taper in the direction of the spring ends.
  • a leaf spring reinforced in this way has in comparison to one unreinforced same shape with almost the same spring strength or softness a significantly reduced susceptibility to shear on, whereby the reinforcement principle is not limited to acute, V-shaped configurations is limited, but consequently also on forms with larger opening angles can be transferred.
  • the strength of the spring action depends on the shape and the material used and can be influenced or adapted to the weight of the user through the dimensioning, ie through a suitable choice of shape, length, width and thickness. Perforation or widening or narrowing of the leaf springs is also possible, be it for reasons of design or for the targeted reduction of spring strength in certain areas.
  • Spring steels, but also special plastics such as POM (polyoxymethylene) can be used as materials for the leaf springs. The latter are particularly suitable for the one-piece variant, i.e. for the case where the two leaf spring parts are held together via an integrated connection.
  • the leaf spring or the leaf spring parts can either be preformed be, or only as a result of attachment to the chassis and on the sole of the foot in a curved, taut form to be brought.
  • the connector shown in Fig. 4 between the upper leg of a leaf spring and the end of a hinge rod (5) contains a connector (7) and on the other hand a laterally projecting bolt (8), which in the notch (9) fits into it.
  • the connector is by means of Screws (10) attached to the upper leg of the leaf spring (1b). Such a connector snaps when excessive Train upwards and therefore takes over a safety function in the sense of a security bond.
  • the bolt (8) also serves also as an axis of rotation.
  • Fig. 5 shows some possible modifications from the classic U-shape, although the first of them (top left) opposite Shear forces is very sensitive. A space-saving, at most slightly upward spring can be especially in Snowboards can be an advantage. All shown in this figure Leaf springs have at least one on their upper leg Axis of rotation on, but this is not a mandatory requirement. This the upper axis of rotation can each be shown in FIG. 4 Be provided. The same applies to the leaf springs in Fig. 10.
  • a leaf spring in a U-shape for example a 2.5 mm thick, 20 to 40 mm wide and 80 to 160 mm long steel spring band can be used.
  • one V-shaped leaf springs can, for example, have two ribbon-shaped preferably 2.5 mm thick, 20 to 40 mm wide and 50 to 80 mm long leaves of spring steel at one end through one fixing element made of steel rigid at an acute angle get connected.
  • the spring travel available can be fully utilized by providing only the heel area which springs back, projects rearward and is essentially U-shaped or V-shaped.
  • the spring forms according to the invention contain no areas where excessive stress occurs, in particular no potential break points. Particularly space-saving, also aesthetically appealing variants are possible. It is also possible to easily adjust the spring strength by changing the effective spring length.
  • the proposed suspension system can also be used for other effects, on the one hand in the sense of a safety bond by releasing it in the event of a fall, and on the other hand to create a more optimal foot or leg position on snowboards.
  • the proposed construction principle allows largely to start with conventional bindings, in particular touring bindings with a hinge rod.
  • a particular advantage of the invention lies in the fact that a reinforcement in the rounded area of the leaf spring significantly reduces the susceptibility to shearing and thus improves the lateral stability. Such reinforcement can easily be achieved by inserting the two curved spring strips into a rod made of hard material and thus forming an essentially V-shaped leaf spring.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP98810040A 1997-01-24 1998-01-26 Fixation à suspension pour des skis, des big-foots et des planches de glisse Withdrawn EP0855202A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH14997 1997-01-24
CH149/97 1997-01-24

Publications (1)

Publication Number Publication Date
EP0855202A2 true EP0855202A2 (fr) 1998-07-29

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EP98810040A Withdrawn EP0855202A2 (fr) 1997-01-24 1998-01-26 Fixation à suspension pour des skis, des big-foots et des planches de glisse

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010094294A (ja) * 2008-10-16 2010-04-30 Yoshihiko Ban カービングスキー用スキー靴取付用具

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713325A1 (de) 1976-04-08 1977-10-27 Herzig Werner Einrichtung fuer skibindung
DE2634748A1 (de) 1976-01-20 1978-02-09 Hans Meyer Ski mit federbrett
EP0104185B1 (fr) 1982-03-25 1987-05-06 Brosi Bettosini Amortissement pour skis
FR2637192A1 (fr) 1988-09-30 1990-04-06 Varpat Patentverwertung Systeme d'assemblage, en particulier pour la fixation d'une chaussure de ski a la surface superieure d'un ski
EP0574640A1 (fr) 1992-06-16 1993-12-22 Salomon S.A. Dispositif d'amortissement des vibrations de skis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2634748A1 (de) 1976-01-20 1978-02-09 Hans Meyer Ski mit federbrett
DE2713325A1 (de) 1976-04-08 1977-10-27 Herzig Werner Einrichtung fuer skibindung
EP0104185B1 (fr) 1982-03-25 1987-05-06 Brosi Bettosini Amortissement pour skis
FR2637192A1 (fr) 1988-09-30 1990-04-06 Varpat Patentverwertung Systeme d'assemblage, en particulier pour la fixation d'une chaussure de ski a la surface superieure d'un ski
EP0574640A1 (fr) 1992-06-16 1993-12-22 Salomon S.A. Dispositif d'amortissement des vibrations de skis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010094294A (ja) * 2008-10-16 2010-04-30 Yoshihiko Ban カービングスキー用スキー靴取付用具

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