EP0305324B1 - Device for adjusting a safety ski binding - Google Patents

Device for adjusting a safety ski binding Download PDF

Info

Publication number
EP0305324B1
EP0305324B1 EP88810535A EP88810535A EP0305324B1 EP 0305324 B1 EP0305324 B1 EP 0305324B1 EP 88810535 A EP88810535 A EP 88810535A EP 88810535 A EP88810535 A EP 88810535A EP 0305324 B1 EP0305324 B1 EP 0305324B1
Authority
EP
European Patent Office
Prior art keywords
stress
ski
measuring
binding
stresses
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.)
Expired - Lifetime
Application number
EP88810535A
Other languages
German (de)
French (fr)
Other versions
EP0305324A1 (en
Inventor
Jacques Epitaux
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
Priority to AT88810535T priority Critical patent/ATE72765T1/en
Publication of EP0305324A1 publication Critical patent/EP0305324A1/en
Application granted granted Critical
Publication of EP0305324B1 publication Critical patent/EP0305324B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C11/00Accessories for skiing or snowboarding
    • A63C11/26Devices for use in mounting ski-bindings to skis, e.g. jigs; Testing or measuring devices specially adapted therefor
    • A63C11/265Devices for testing or measuring the release force of safety ski bindings

Definitions

  • the present invention relates to an apparatus for adjusting a ski safety binding, comprising a support for skiing, an artificial foot intended to be introduced and fixed in a shoe mounted in the binding and comprising an upright, a device for application of forces acting on the upright of the foot, means capable of causing forces to act on a coupling member selectively according to different modes of stress, and means for measuring forces.
  • an apparatus which also includes an artificial foot intended to be rigidly fixed to the shoe.
  • This foot is rigidly coupled to a force application device which comprises an elastically deformable transmission member and provided with one or more strain gauges.
  • the latter are connected to circuits such as measurement units, making it possible to control the forces applied to the artificial foot and therefore to the shoe.
  • the object of the invention is therefore to provide a device of the kind mentioned at the start which is compact and of practical use, while making it possible to carry out checks giving precise, reliable and complete results. It is based on the design of an apparatus, the force application device of which is of the versatile manual type and the measurement device of which can be easily switched over to supply the results of successive measurements in different modes of force application.
  • the adjustment apparatus of the present invention of the kind mentioned at the beginning is characterized in that an elongated force transmission element, capable of undergoing elastic deformations as a function of the forces transmitted, having an end shaped according to said coupling member and another end integral with said upright, comprises means for measuring said deformations switchable as a function of a stressing mode freely chosen from several different modes.
  • Fig. 1 shows the elements which compete to facilitate the implementation of the device and ensure the accuracy of the measurements.
  • the ski 1 is fixed to the support (23) in a horizontal position by means which will be described later.
  • a shoe 3 into which is introduced an artificial foot 4, which itself comprises an amount rigid 4a and a telescopic base 4b, articulated at the lower end of the upright 4a, the articulation and the front end of the base 4b being provided with rollers 5, so that the artificial foot adjusts precisely to the 'interior space of the shoe 3.
  • the upright 4 At its upper end the upright 4 has a connecting segment 6, with a hooking rod 7 which projects rearwardly.
  • a strap 8, comprising at its lower part a loop 8a and at its upper part a metal band 8b provided with holes 9, fits under the heel of the shoe 3 and can be stretched to engage one of the holes 9 on the pin 7
  • the foot 4 is thus absolutely integral with the shoe 3.
  • a measuring block which includes a force transmission bar 10.
  • This essential element of the construction described is a segment of a metal bar, preferably of steel, of cylindrical shape, perfectly homogeneous, machined so to undergo regular elastic deformations when applying forces.
  • This cylindrical bar is fixed, for example by welding, through the element 6 and extends vertically upwards. At its upper end, it comprises a connecting element of square or rectangular section 10a.
  • a locking device 11 for example of the type comprising a button actuating a rod inserted in the connector 10a, provided with a lug and retained by a spring.
  • a force application bar 12 of rectilinear appearance, comprises, in the middle of its length, a first coupling element 13 having the shape of a square or rectangular tube segment adjusted to the dimensions of the connecting element 10a.
  • This tube segment extends perpendicular to the bar 12.
  • a similar segment 32 also extends at one end of the bar 12, in its extension by forming a second coupling element of this bar to the transmission element 10
  • Each of the tube segments 13 and 32 comprises, on one side, a hole 14 and, on the other side, a slot in the form of a key entry 14a, these means being capable of cooperating with the locking device 11 to allow easy connection of the coupling element 13 or 32 to the connector segment 10a. This locking prevents the shoe from escaping after the binding is released.
  • a strain gauge 15 which is bonded against the cylindrical face of the transmission rod 10.
  • a corresponding gauge 22 is bonded in a position diametrically opposite to the gauge 15 and these two gauges 15 and 22 are connected by conductors 16 and 17 to a measuring device 18 which is housed in a housing the upper face of which comprises, on the one hand, a display area 19 and, on the other hand, a keyboard 20.
  • the device is further provided with a printer and means for producing a strip of paper 21 with indications confirming the results of the measurements.
  • Figs. 2, 3 and 4 illustrate the arrangement and the possible connections of the strain gauge 15 and of the counter gauge 22.
  • These gauges are glued in symmetrical positions against the cylindrical face of the transmission rod 10 and, as seen in fig. 3, they together comprise four resistors A, B, C, D which, in each gauge, are inclined at 45 ° in opposite directions.
  • These resistors are connected by connections 16 and 17 to measuring circuit placed in the housing 18, so as to be able to be connected in different ways, the switching being effected by manually controlled contacts, as will be seen below.
  • FIG. 4 shows how the resistors A, B, CD are arranged in the measurement circuit and what deformations they undergo when the bar 10 is subjected, on the one hand, to a torsional force around its axis and, on the other hand, to a bending force in a direction perpendicular to the diametral plane passing through the centers of the gauges 15 and 22.
  • a torsional force according to the arrow T in FIG. 2, the resistors A and C undergo an elongation and the resistors B and D a contraction.
  • Resistors A and D will therefore be connected in series as well as resistors B and C and the voltage variations of these two chains will be compared.
  • Figs. 5, 6 and 7 show how these two modes of applying force are implemented.
  • the ski 1 is fixed to a support in a horizontal position, so that the force transmission bar 10 rises vertically above it.
  • the bar 12 is connected to the coupling segment 10a, as seen in FIG. 1, that is to say by means of its coupling element 13 located in the middle of its length, so that one can, by hand or using a jack, exercise on the bar 12 a sufficient torsional force to ensure the triggering of the binding 2.
  • the ski is fixed to the rigid support 23 by a fixing mechanism which comprises a rear link member 24 and a front link member 25.
  • the front link member 25 is shown in detail in FIG. 7.
  • the connecting member 24 has a constitution quite similar to that of the member 25 but, instead of having, at its rear edge, a hooking member in the form of an inverted U, the plate of the member 24 is mounted on a bearing which pivots on a fixed pin, integral with the support 23 and oriented horizontally perpendicular to the direction of the ski in FIG. 5.
  • the connecting member 25 can be hooked to an angle iron 29, fixed to the support 23, at the same height as the pivoting connecting member 24.
  • the bar of force transmission 10 is directed upwards in a slightly inclined position and the bar 12 is linked to the coupling segment 10a by its coupling element 32, located at one of its ends.
  • the bar 10 In this position, as seen in fig. 6, it is possible to exert on the bar 10, the bending force which simulates the fall forward and must cause the release of the binding for a threshold value such that the skier retains his bodily integrity.
  • the apparatus described makes it possible to carry out an effective and rational adjustment of each safety fastener according to objective standards.
  • standards corresponding to the efforts that the legs of a skier can undergo, in cases of maximum stress such as, for example, a torsional effort or a bending effort corresponding to a fall forward or also falling back.
  • These limit values were established on the basis of complex personal data, such as sex, height, weight, age and, in some cases, the dimensions of the tibia in diameter or possibly other characteristics.
  • the measurement circuit provided in the housing 18 includes a memory and a processor capable of developing the values of the standards as a function of data introduced into the circuit.
  • This processor also compares the values of the standards with the measurement results and ensures the receipt of the result.
  • a display area 19 which is not only equipped with a series of display positions 33, representing numbers and giving the values of the couples, but also various figurines 34 facilitating the progress of the data introduction and measurement program. It is not necessary here to give in detail the meaning and function of all the figurines.
  • 34a and 34b figurines connected to contacts and giving the order to introduce the indication of the sex of the skier in 34c a figurine enjoining the introduction of its height, in 34d figurines enjoining the introduction of the age, etc.
  • the circuit includes a program which controls the flashing of these various figurines as a call signal for the introduction of the corresponding data, the excitation of the various figurines occurring successively in the order in which the program must run and being interrupted when the corresponding data has been entered.
  • the arrows 35a and 35b are in connection with control contacts ensuring the switching of the strain gauges 15 and 22 according to the mode of application of forces which will be produced.
  • the apparatus described makes it possible to test a safety binding and to correct its adjustment under conditions that are both simple and precise while being of minimum bulk. Thanks in particular to the fact that the force application device comprises the bar 10, which is rigidly fixed to the upper end of the foot 4 and which is equipped with gauges 15 and 22, various modes of application can be implemented successively under conditions of good reliability, since the same gauges ensure the measurement in the different cases.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Basic Packing Technique (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

A bar makes it possible to apply either torsional stress or bending stress. In the case of torsional stress, an element is coupled to a stress-transmission bar which is rigidly connected to an artificial foot inserted in a ski boot. A strain gauge co-operates with a counterpart gauge for measuring the stresses applied and in particular the thresholds of release of the ski binding, which are compared with norm values processed in a circuit on the basis of data relative to the skier, entered beforehand.

Description

La présente invention a pour objet un appareil de réglage d'une fixation de sécurité de ski, comportant un support pour le ski, un pied artificiel destiné à être introduit et fixé dans une chaussure montée dans la fixation et comportant un montant, un dispositif d'application d'efforts agissant sur le montant du pied, des moyens capables de faire agir des efforts sur un organe d'accouplement de manière sélective selon des mode de sollicitation différents, et des moyens de mesure des efforts.The present invention relates to an apparatus for adjusting a ski safety binding, comprising a support for skiing, an artificial foot intended to be introduced and fixed in a shoe mounted in the binding and comprising an upright, a device for application of forces acting on the upright of the foot, means capable of causing forces to act on a coupling member selectively according to different modes of stress, and means for measuring forces.

On connaît déjà, notamment par le fascicule CH-637 212, un appareil de réglage d'une fixation de sécurité montée sur un ski, qui permet d'appliquer à un pied artificiel, fixé rigidement à la chaussure, divers types d'efforts et de mesurer le seuil de déclenchement de la fixation pour chacun de ces types d'efforts.Already known, in particular from the booklet CH-637 212, an apparatus for adjusting a safety binding mounted on a ski, which makes it possible to apply to an artificial foot, rigidly fixed to the shoe, various types of force and to measure the threshold for triggering fixation for each of these types of effort.

Auparavant, on connaissait déjà, notamment par US-3 192 767 et US-3 572 105 des appareils qui comportaient un pied artificiel destiné à être introduit dans la chaussure et sur lequel agissaient des moyens tels qu'une clef dynamométrique ou un jeu de telles clefs pour exercer des efforts sur ce pied et mesurer leur valeur au moment du déclenchement.Previously, we already knew, in particular from US-3,192,767 and US-3,572,105 of devices which included an artificial foot intended to be introduced into the shoe and on which acted means such as a torque wrench or a set of such keys to exert efforts on this foot and measure their value at the time of triggering.

Par AT-378 688, on connaît encore un appareil qui comporte également un pied artificiel destiné a être fixé rigidement à la chaussure. Ce pied est accouplé rigidement à un dispositif d'application d'efforts qui comporte un organe de transmission déformable élastiquement et muni d'une ou plusieurs jauges de contraintes. Ces dernières sont connectées à des circuits tels que des unités de mesure, permettant de contrôler les efforts appliqués au pied artificiel et par conséquent à la chaussure.From AT-378 688, an apparatus is also known which also includes an artificial foot intended to be rigidly fixed to the shoe. This foot is rigidly coupled to a force application device which comprises an elastically deformable transmission member and provided with one or more strain gauges. The latter are connected to circuits such as measurement units, making it possible to control the forces applied to the artificial foot and therefore to the shoe.

Toutefois, la précision et la facilité d'emploi de ces divers appareils sont très insuffisantes pour satisfaire aux exigences actuelles.However, the precision and ease of use of these various devices are very insufficient to meet current requirements.

Les installations connues à ce jour qui permettent de contrôler les réglages des fixations de sécurité de ski d'une façon précise, assistées par un système électronique de mesure, sont très encombrantes et d'un coût élevé. Elles demandent une attention particulière pour positionner la fixation, voire le ski et la chaussure.The installations known to date which make it possible to control the settings of the ski safety bindings in a precise manner, assisted by an electronic measurement system, are very bulky and of high cost. They require special attention to position the binding, even the ski and the boot.

Le but de l'invention est donc de fournir un appareil du genre mentionné au début qui soit peu encombrant et d'un emploi pratique, tout en permettant d'effectuer des contrôles donnant des résultats précis, fiables et complets. Elle repose sur la conception d'un appareil dont le dispositif d'application des efforts est de type manuel polyvalent et dont le dispositif de mesure peut être commuté aisément pour fournir les résultats de mesures successives dans différents modes d'application d'efforts.The object of the invention is therefore to provide a device of the kind mentioned at the start which is compact and of practical use, while making it possible to carry out checks giving precise, reliable and complete results. It is based on the design of an apparatus, the force application device of which is of the versatile manual type and the measurement device of which can be easily switched over to supply the results of successive measurements in different modes of force application.

Dans ce but, l'appareil de réglage de la présente invention du genre mentionné au début est caractérisé en ce qu' un élément allongé de transmission des efforts, capable de subir des déformations élastiques en fonction des efforts transmis, ayant une extrémité conformée selon ledit organe d'accouplement et une autre extrémité solidaire dudit montant, comporte des moyens de mesure desdites déformations commutables en fonction d'un mode de sollicitation choisi librement parmi plusieurs modes différents.For this purpose, the adjustment apparatus of the present invention of the kind mentioned at the beginning is characterized in that an elongated force transmission element, capable of undergoing elastic deformations as a function of the forces transmitted, having an end shaped according to said coupling member and another end integral with said upright, comprises means for measuring said deformations switchable as a function of a stressing mode freely chosen from several different modes.

On va décrire ci-après, à titre d'exemple, une forme de réalisation de l'objet de l'invention en se référant au dessin annexé dont

  • la fig. 1 est une vue schématique, partiellement coupée, de l'ensemble de l'appareil agencé en vue de la mise en oeuvre d'un premier mode d'application d'efforts,
  • la fig. 2 est une vue en plan de dessus du barreau de transmission d'efforts montrant l'emplacement des jauges de contrainte,
  • la fig. 3 est une vue en élévation développée montrant la disposition des jauges de contrainte,
  • la fig. 4 est un schéma des résistances de mesure montrant les déformations subies dans deux modes d'application d'efforts,
  • la fig. 5 est une vue à petite échelle montrant le montage de l'appareil pour une mesure d'un couple de torsion,
  • la fig. 6, une vue analogue à la fig. 5 montrant le montage de l'appareil lors d'une mesure d'une flexion avant,
  • la fig. 7, une vue en perspective montrant l'accrochage de l'organe de liaison libre et
  • la fig. 8, une vue de la zone d'affichage que comporte le boîtier de mesure.
An embodiment of the object of the invention will be described below, by way of example, with reference to the accompanying drawing,
  • fig. 1 is a schematic view, partially cut away, of the whole of the apparatus arranged for the implementation of a first mode of application of forces,
  • fig. 2 is a top plan view of the force transmission bar showing the location of the strain gauges,
  • fig. 3 is a developed elevation view showing the arrangement of the strain gauges,
  • fig. 4 is a diagram of the measurement resistances showing the deformations undergone in two modes of application of forces,
  • fig. 5 is a small-scale view showing the mounting of the apparatus for measuring a torque,
  • fig. 6, a view similar to FIG. 5 showing the mounting of the device during a front bending measurement,
  • fig. 7, a perspective view showing the attachment of the free connecting member and
  • fig. 8, a view of the display area that includes the measurement unit.

La fig. 1 montre les éléments qui concourent pour faciliter la mise en oeuvre de l'appareil et assurer la précision des mesures. Le ski 1 est fixé au support (23) dans une position horizontale par des moyens qui seront décrits plus loin. Dans la fixation 2 est engagée une chaussure 3 dans laquelle s'introduit un pied artificiel 4, qui comporte lui-même un montant rigide 4a et une embase télescopique 4b, articulée à l'extrémité inférieure du montant 4a, l'articulation et l'extrémité avant de l'embase 4b étant pourvue de galets 5, de sorte que le pied artificiel s'ajuste avec précision à l'espace intérieur de la chaussure 3. A son extrémité supérieure le montant 4 comporte un segment de raccord 6, avec une tige d'accrochage 7 qui s'étend en saillie vers l'arrière. Une sangle 8, comportant à sa partie inférieure une boucle 8a et à sa partie supérieure une bande métallique 8b munie de trous 9, s'ajuste sous le talon de la chaussure 3 et peut être tendue pour engager un des trous 9 sur la goupille 7. Le pied 4 est ainsi absolument solidaire de la chaussure 3.Fig. 1 shows the elements which compete to facilitate the implementation of the device and ensure the accuracy of the measurements. The ski 1 is fixed to the support (23) in a horizontal position by means which will be described later. In the binding 2 is engaged a shoe 3 into which is introduced an artificial foot 4, which itself comprises an amount rigid 4a and a telescopic base 4b, articulated at the lower end of the upright 4a, the articulation and the front end of the base 4b being provided with rollers 5, so that the artificial foot adjusts precisely to the 'interior space of the shoe 3. At its upper end the upright 4 has a connecting segment 6, with a hooking rod 7 which projects rearwardly. A strap 8, comprising at its lower part a loop 8a and at its upper part a metal band 8b provided with holes 9, fits under the heel of the shoe 3 and can be stretched to engage one of the holes 9 on the pin 7 The foot 4 is thus absolutely integral with the shoe 3.

Sur le raccord 6 est fixé un bloc de mesure qui comporte un barreau de transmission d'efforts 10. Cet élément essentiel de la construction décrite est un segment de barreau métallique, de préférence en acier, de forme cylindrique,parfaitement homogène, usiné de façon à subir des déformations élastiques régulières en cas d'application d'efforts. Ce barreau cylindrique est fixé, par exemple par soudure, au travers de l'élément 6 et s'étend verticalement vers le haut. A son extrémité supérieure, il comporte un élément de raccord de section carrée ou rectangulaire 10a. Dans un trou transversal de ce raccord est monté un dispositif de verrouillage 11, par exemple du type comportant un bouton actionnant une tige insérée dans le raccord 10a, pourvue d'un ergot et retenue par un ressort.On the connector 6 is fixed a measuring block which includes a force transmission bar 10. This essential element of the construction described is a segment of a metal bar, preferably of steel, of cylindrical shape, perfectly homogeneous, machined so to undergo regular elastic deformations when applying forces. This cylindrical bar is fixed, for example by welding, through the element 6 and extends vertically upwards. At its upper end, it comprises a connecting element of square or rectangular section 10a. In a transverse hole of this connector is mounted a locking device 11, for example of the type comprising a button actuating a rod inserted in the connector 10a, provided with a lug and retained by a spring.

Comme on le voit également à la fig. 1, une barre d'application d'efforts 12, d'allure rectiligne, comporte, au milieu de sa longueur, un premier élément d'accouplement 13 ayant la forme d'un segment de tube carré ou rectangulaire ajusté aux dimensions de l'élément de raccord 10a. Ce segment de tube s'étend perpendiculairement à la barre 12. Un segment analogue 32 s'étend également à une extrémité de la barre 12, dans son prolongement en formant un second élément d'accouplement de cette barre à l'élément de transmission 10. Chacun des segments de tube 13 et 32 comporte, d'un coté, un trou 14 et, de l'autre coté, une fente en forme d'entrée de clef 14a, ces moyens étant capables de coopérer avec le dispositif de verrouillage 11 pour permettre de relier facilement l'élément d'accouplement 13 ou 32 au segment de raccord 10a. Ce verrouillage empêche la chaussure de s'échapper après le déclenchement de la fixation.As can also be seen in FIG. 1, a force application bar 12, of rectilinear appearance, comprises, in the middle of its length, a first coupling element 13 having the shape of a square or rectangular tube segment adjusted to the dimensions of the connecting element 10a. This tube segment extends perpendicular to the bar 12. A similar segment 32 also extends at one end of the bar 12, in its extension by forming a second coupling element of this bar to the transmission element 10 Each of the tube segments 13 and 32 comprises, on one side, a hole 14 and, on the other side, a slot in the form of a key entry 14a, these means being capable of cooperating with the locking device 11 to allow easy connection of the coupling element 13 or 32 to the connector segment 10a. This locking prevents the shoe from escaping after the binding is released.

On voit encore, à la fig. 1, une jauge de contrainte 15 qui est collée contre la face cylindrique du barreau de transmission 10. Une jauge correspondante 22 est collée dans une position diamétralement opposée à la jauge 15 et ces deux jauges 15 et 22 sont raccordées par des conducteurs 16 et 17 à un dispositif de mesure 18 qui est logé dans un boîtier dont la face supérieure comporte, d'une part, une zone d'affichage 19 et, d'autre part, un clavier 20. Le dispositif est encore pourvu d'une imprimante et de moyens pour produire une bande de papier 21 avec des indications confirmant les résultats des mesures.We still see, in fig. 1, a strain gauge 15 which is bonded against the cylindrical face of the transmission rod 10. A corresponding gauge 22 is bonded in a position diametrically opposite to the gauge 15 and these two gauges 15 and 22 are connected by conductors 16 and 17 to a measuring device 18 which is housed in a housing the upper face of which comprises, on the one hand, a display area 19 and, on the other hand, a keyboard 20. The device is further provided with a printer and means for producing a strip of paper 21 with indications confirming the results of the measurements.

Les fig. 2, 3 et 4 illustrent la disposition et les connexions possibles de la jauge de contrainte 15 et de la jauge antagoniste 22. Ces jauges sont collées dans des positions symétriques contre la face cylindrique du barreau de transmission 10 et, comme on le voit à la fig. 3, elles comportent ensemble quatre résistances A, B, C, D qui, dans chaque jauge, sont inclinées à 45° dans des directions opposées. Ces résistances sont reliées par les connexions 16 et 17 au circuit de mesure placé dans le boîtier 18, de façon à pouvoir être connectées de différentes manières, la commutation étant effectuée par des contacts à commande manuelle, comme on le verra plus loin. La fig. 4 montre comment les résistances A, B, C D sont disposées dans le circuit de mesure et quelles déformations elles subissent lorsque le barreau 10 est soumis, d'une part, à un effort de torsion autour de son axe et, d'autre part, à un effort de flexion dans une direction perpendiculaire au plan diamétral passant par les centres des jauges 15 et 22. Dans le cas d'un effort de torsion, selon la flèche T de la fig. 2, les résistances A et C subissent un allongement et les résistances B et D une contraction. Les résistances A et D seront donc connectées en série de même que les résistances B et C et les variations de tension de ces deux chaînes seront comparées. En revanche, dans le cas d'un effort de flexion selon la flèche F à la fig. 2, les résistances C et D subiront un allongement tandis que les résistances A et B subiront une contraction. La commutation des connexions sera donc faite en conséquence afin de pouvoir additionner les variations de tension allant dans le même sens et les comparer aux variations de tension allant dans l'autre sens.Figs. 2, 3 and 4 illustrate the arrangement and the possible connections of the strain gauge 15 and of the counter gauge 22. These gauges are glued in symmetrical positions against the cylindrical face of the transmission rod 10 and, as seen in fig. 3, they together comprise four resistors A, B, C, D which, in each gauge, are inclined at 45 ° in opposite directions. These resistors are connected by connections 16 and 17 to measuring circuit placed in the housing 18, so as to be able to be connected in different ways, the switching being effected by manually controlled contacts, as will be seen below. Fig. 4 shows how the resistors A, B, CD are arranged in the measurement circuit and what deformations they undergo when the bar 10 is subjected, on the one hand, to a torsional force around its axis and, on the other hand, to a bending force in a direction perpendicular to the diametral plane passing through the centers of the gauges 15 and 22. In the case of a torsional force, according to the arrow T in FIG. 2, the resistors A and C undergo an elongation and the resistors B and D a contraction. Resistors A and D will therefore be connected in series as well as resistors B and C and the voltage variations of these two chains will be compared. On the other hand, in the case of a bending force according to the arrow F in FIG. 2, the resistors C and D will undergo an elongation while the resistors A and B will undergo a contraction. The switching of the connections will therefore be done accordingly in order to be able to add up the voltage variations going in the same direction and compare them to the voltage variations going in the other direction.

Ainsi, le même barreau de transmission d'efforts, rigidement solidaire du pied, est utilisé pour deux modes d'application d'efforts différents.Thus, the same force transmission bar, rigidly attached to the foot, is used for two different modes of application of forces.

Les fig. 5, 6 et 7 montrent comment ces deux modes d'application d'efforts sont mis en oeuvre. Dans le cas de la fig. 5, le ski 1 est fixé à un support dans une position horizontale, de sorte que le barreau de transmission d'efforts 10 s'élève verticalement au-dessus de lui. La barre 12 est reliée au segment d'accouplement 10a, comme on le voit à la fig. 1, c'est-à-dire par l'intermédiaire de son élément d'accouplement 13 situé au milieu de sa longueur, de sorte que l'on peut, à la main ou à l'aide d'un vérin, exercer sur la barre 12 un effort de torsion suffisant pour assurer le déclenchement de la fixation 2. Le ski est fixé au support rigide 23 par un mécanisme de fixation qui comporte un organe de liaison arrière 24 et un organe de liaison avant 25. L'organe de liaison avant 25 est représenté en détail à la fig. 7. On voit qu'il comporte une plaque destinée à se placer sous la semelle du ski et équipée d'une sangle élastique 26 qui s'accroche à un téton 27. La plaque 25 est pourvue d'un rebord avant et d'un organe d'accrochage arrière 28. L'organe de liaison 24 présente une constitution assez semblable a celle de l'organe 25 mais, au lieu de présenter, à son bord arrière, un organe d'accrochage en forme de U renversé, la plaque de l'organe 24 est montée sur un palier qui pivote sur un tourillon fixe, solidaire du support 23 et orienté horizontalement perpendiculairement à la direction du ski à la fig. 5. D'autre part, comme on le voit à la fig. 7, l'organe de liaison 25 peut être accroché à une cornière 29, fixée au support 23, à la même hauteur que l'organe de liaison pivotant 24. Il peut aussi s'accrocher à un rebord 30 qui est ménagé à l'extrémité inférieure d'une lame 31 s'étendant vers le bas depuis le support 23. Ce mécanisme permet ainsi de placer le ski soit dans la position horizontale vue à la fig. 5, auquel cas l'organe de liaison 25 est engagé sur la cornière 29, soit dans une position inclinée, comme on le voit à la fig. 6, où l'organe 25 est alors engagé sur le rebord 30 de l'élément 31. Entre ces deux positions, l'organe de liaison 24 a pivoté autour de son tourillon.Figs. 5, 6 and 7 show how these two modes of applying force are implemented. In the case of fig. 5, the ski 1 is fixed to a support in a horizontal position, so that the force transmission bar 10 rises vertically above it. The bar 12 is connected to the coupling segment 10a, as seen in FIG. 1, that is to say by means of its coupling element 13 located in the middle of its length, so that one can, by hand or using a jack, exercise on the bar 12 a sufficient torsional force to ensure the triggering of the binding 2. The ski is fixed to the rigid support 23 by a fixing mechanism which comprises a rear link member 24 and a front link member 25. The front link member 25 is shown in detail in FIG. 7. We see that it has a plate intended to be placed under the sole of the ski and equipped with an elastic strap 26 which hooks to a stud 27. The plate 25 is provided with a front edge and a rear hooking member 28. The connecting member 24 has a constitution quite similar to that of the member 25 but, instead of having, at its rear edge, a hooking member in the form of an inverted U, the plate of the member 24 is mounted on a bearing which pivots on a fixed pin, integral with the support 23 and oriented horizontally perpendicular to the direction of the ski in FIG. 5. On the other hand, as seen in fig. 7, the connecting member 25 can be hooked to an angle iron 29, fixed to the support 23, at the same height as the pivoting connecting member 24. It can also be hooked to a flange 30 which is formed at the lower end of a blade 31 extending downwards from the support 23. This mechanism thus makes it possible to place the ski either in the horizontal position seen in FIG. 5, in which case the connecting member 25 is engaged on the angle iron 29, ie in an inclined position, as seen in FIG. 6, where the member 25 is then engaged on the rim 30 of the element 31. Between these two positions, the connecting member 24 has pivoted around its journal.

Dans la position de la fig. 6, le barreau de transmission d'efforts 10 est dirigé vers le haut dans une position légèrement inclinée et la barre 12 est liée au segment d'accouplement 10a par son élément d'accouplement 32, situé à une de ses extrémités. Dans cette position, comme on le voit à la fig. 6, il est possible d'exercer sur le barreau 10, l'effort de flexion qui simule la chute en avant et doit provoquer le déclenchement de la fixation pour une valeur de seuil telle que le skieur conserve son intégrité corporelle.In the position of fig. 6, the bar of force transmission 10 is directed upwards in a slightly inclined position and the bar 12 is linked to the coupling segment 10a by its coupling element 32, located at one of its ends. In this position, as seen in fig. 6, it is possible to exert on the bar 10, the bending force which simulates the fall forward and must cause the release of the binding for a threshold value such that the skier retains his bodily integrity.

L'appareil décrit permet d'effectuer un réglage efficace et rationnel de chaque fixation de sécurité en fonction de normes objectives. Comme on le sait, des études ont permis de déterminer des normes correspondant aux efforts que les jambes d'un skieur peuvent subir, dans des cas de sollicitation maximale, comme par exemple, un effort de torsion ou un effort de flexion correspondant à une chute en avant ou également à une chute en arrière. Ces valeurs-limites ont été établies en fonction de données personnelles complexes, telles que le sexe, la hauteur, le poids, l'âge et, dans certains cas, les dimensions du tibia en diamètre ou éventuellement d'autres caractéristiques encore. Pour assurer une détermination rapide et simple, le circuit de mesure prévu dans le boîtier 18 comporte une mémoire et un processeur capable d'élaborer les valeurs des normes en fonction de données introduites dans le circuit. Ce processeur compare également les valeurs des normes aux résultats de mesures et assure la quittance du résultat. Pour cela, on a prévu sur le couvercle du boîtier une zone d'affichage 19 qui est non seulement équipée d'une série de positions d'affichage 33, représentant des chiffres et donnant les valeurs des couples, mais également diverses figurines 34 facilitant le déroulement du programme d'introduction des données et de mesure. Il n'est pas nécessaire ici de donner en détail la signification et la fonction de toutes les figurines. On reconnaît en 34a et 34b des figurines reliées à des contacts et donnant l'ordre d'introduire l'indication du sexe du skieur, en 34c une figurine enjoignant l'introduction de sa hauteur, en 34d des figurines enjoignant l'introduction de l'âge, etc. Le circuit comporte un programme qui commande le clignotement de ces diverses figurines comme signal d'appel pour l'introduction des données correspondantes, l'excitation des diverses figurines se produisant successivement dans l'ordre où le programme doit se dérouler et étant interrompu lorsque la donnée correspondante a été introduite. On comprend notamment que les flèches 35a et 35b sont en liaison avec des contacts de commande assurant la commutation des jauges de contrainte 15 et 22 en fonction du mode d'application d'efforts qui va être réalisé.The apparatus described makes it possible to carry out an effective and rational adjustment of each safety fastener according to objective standards. As is known, studies have made it possible to determine standards corresponding to the efforts that the legs of a skier can undergo, in cases of maximum stress, such as, for example, a torsional effort or a bending effort corresponding to a fall forward or also falling back. These limit values were established on the basis of complex personal data, such as sex, height, weight, age and, in some cases, the dimensions of the tibia in diameter or possibly other characteristics. To ensure rapid and simple determination, the measurement circuit provided in the housing 18 includes a memory and a processor capable of developing the values of the standards as a function of data introduced into the circuit. This processor also compares the values of the standards with the measurement results and ensures the receipt of the result. For this, there is provided on the cover of the housing a display area 19 which is not only equipped with a series of display positions 33, representing numbers and giving the values of the couples, but also various figurines 34 facilitating the progress of the data introduction and measurement program. It is not necessary here to give in detail the meaning and function of all the figurines. We recognize in 34a and 34b figurines connected to contacts and giving the order to introduce the indication of the sex of the skier, in 34c a figurine enjoining the introduction of its height, in 34d figurines enjoining the introduction of the age, etc. The circuit includes a program which controls the flashing of these various figurines as a call signal for the introduction of the corresponding data, the excitation of the various figurines occurring successively in the order in which the program must run and being interrupted when the corresponding data has been entered. It is understood in particular that the arrows 35a and 35b are in connection with control contacts ensuring the switching of the strain gauges 15 and 22 according to the mode of application of forces which will be produced.

Ainsi, l'appareil décrit permet de tester une fixation de sécurité et de corriger son réglage dans des conditions à la fois simples et précises tout en étant d'un encombrement minimum. Grâce notamment au fait que le dispositif d'application d'efforts comporte le barreau 10, qui est rigidement fixé à l'extrémité supérieure du pied 4 et qui est équipé des jauges 15 et 22, divers modes d'application peuvent être mis en oeuvre successivement dans des conditions de bonne fiabilité, puisque les mêmes jauges assurent la mesure dans les différents cas.Thus, the apparatus described makes it possible to test a safety binding and to correct its adjustment under conditions that are both simple and precise while being of minimum bulk. Thanks in particular to the fact that the force application device comprises the bar 10, which is rigidly fixed to the upper end of the foot 4 and which is equipped with gauges 15 and 22, various modes of application can be implemented successively under conditions of good reliability, since the same gauges ensure the measurement in the different cases.

On notera finalement que les conditions d'une chute arrière peuvent être réalisées très facilement, en inversant la position du ski par rapport à ce qui est représenté à la fig. 6. Le cas échéant, d'autres modes d'application d'efforts pourraient également être mis en oeuvre.Finally, it should be noted that the conditions for a rear fall can be very easily achieved, by reversing the position of the ski with respect to what is shown in fig. 6. If necessary, other methods of applying efforts could also be implemented.

Claims (11)

1. Apparatus for adjusting a safety ski binding, comprising a support (23) for the ski (1), an artificial foot (4) intended to be introduced and fixed in a ski boot mounted in the binding and comprising an upright (4a), a device (12) for applying stress upon the upright of the foot, means (13, 32) for causing stresses to act selectively upon a coupling part (10a) according to various stress modes, and stress-measuring means (18, 15; 22, 10), characterized in that an elongated stress-transmission element (10), capable of sustaining resilient deformations as a function of stresses transmitted, having one end shaped as said coupling part (10a) and another end integral with said upright (4a), comprises elements (15; 22) for measuring said resilient deformations, commutable as a function of a stress mode freely chosen among a several different modes.
2. The apparatus of claim 1, characterized in that the device for applying stress comprises a multipurpose part (12) for applying stresses, equipped with several coupling elements (13, 32) able to be connected selectively to said coupling part (10a) as a function of the selected stress mode.
3. The apparatus of claim 2, characterized in that the multi-purpose part for applying stresses (12) is a rigid bar equipped with a first coupling element (13) situated midway along the length of said bar and a second coupling element (32) situated at one of its ends, this bar constituting a manually-operated lever for applying either a torsional force or a bending force to the transmission element (10).
4. The apparatus of claim 2, characterized in that the measuring means comprise a set of strain guages cemented to the side surface of the elongated stress-transmission element and a measuring circuit to which the guages are linked by connections, and in that the measuring circuit is arranged so that said connections may be commutated according to various diagrams corresponding to said stress modes.
5. The apparatus of claim 4, characterized in that the measuring circuit comprises means which process signals corresponding to the values of the stresses at the time of release of the binding and which compare these values with norm values which are processed from memorized data and as a function of the chosen stress mode.
6. The apparatus of claim 5, characterized in that the measuring means comprise a control keyboard comprising, on the one hand, a keyboard for entering data and a display field provided with symbols and, on the other hand, an incorporated controlling and measuring program, energizing said symbols in a predetermined order to allow successive data to be entered into the measuring circuit by means of said keyboard, for determining the norm values with which the measured stress values are compared.
7. The apparatus of claim 6, characterized in that the symbols and the keyboard comprise means for successively selecting two diagrams for connecting guages corresponding to two stress modes, these modes being torsion and bending.
8. The apparatus of claim 1, characterized in that the support is arranged for supporting the ski rigidly in a horizontal position on the one hand, and, on the other hand, in an inclined position.
9. The apparatus of claim 1, characterized in that the support comprises an attachment part pivoting about a horizontal axis and provided with means for fixing a first zone of the sole of the ski to this attachment part, and a free attachment part arranged to be integral with a second zone of the sole of the ski and comprises a hooking means, the support also comprising two fixed, superposed hooking elements for co-operating with the hooking means of the free attachment part to immobilize the ski in either a horizontal position or an inclined position.
10. The apparatus of claim 2, characterized in that said coupling element comprises a resilient locking means which co-operates with the component for applying stresses to ensure that the foot remains connected to this component after the release of the binding.
11. The apparatus of claim 1, characterized in that it comprises, on the foot, a projecting pin (7), and for the binding of the boot, a strap (8) with a loop fitting under the heel of the boot, and a metal blade (8b) provided with holes (9) for hooking the blade (8b) to the pin (7).
EP88810535A 1987-08-11 1988-08-05 Device for adjusting a safety ski binding Expired - Lifetime EP0305324B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810535T ATE72765T1 (en) 1987-08-11 1988-08-05 ADJUSTMENT DEVICE FOR SAFETY SKI BINDINGS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH309087 1987-08-11
CH3090/87 1987-08-11

Publications (2)

Publication Number Publication Date
EP0305324A1 EP0305324A1 (en) 1989-03-01
EP0305324B1 true EP0305324B1 (en) 1992-02-26

Family

ID=4248398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810535A Expired - Lifetime EP0305324B1 (en) 1987-08-11 1988-08-05 Device for adjusting a safety ski binding

Country Status (4)

Country Link
US (1) US4860595A (en)
EP (1) EP0305324B1 (en)
AT (1) ATE72765T1 (en)
DE (1) DE3868564D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647026B1 (en) * 1989-05-17 1991-08-23 Villard Thierry DEVICE FOR ALLOWING THE ADAPTATION OF SHOE SHOE SKIS
DE10004935A1 (en) * 2000-02-04 2001-10-11 Jens Bongartz Measuring device for automatically determining setting number of ski binding detects body weight, height and shoe length and calculates number auotmatically
TWI795271B (en) * 2022-04-15 2023-03-01 辰康股份有限公司 Inspection system and equipment for snowboard boots and retainers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192767A (en) * 1963-04-30 1965-07-06 John O Outwater Torque measuring device for determining the safety of ski foot fastenings
US3572105A (en) * 1968-07-09 1971-03-23 Frederic H Kaehler Apparatus for testing the force required to release a ski boot binding
US3805603A (en) * 1972-09-12 1974-04-23 C Ettlinger Device for measuring forward bend resistance of ski bindings
DE2660055C2 (en) * 1976-11-09 1979-12-06 Bernhard 5500 Trier Kirsch Device for checking the release mechanism of a ski binding when the ski is buckled on
CH637212A5 (en) * 1980-04-29 1983-07-15 Schweizerische Beratungsstelle APPARATUS FOR ADJUSTING A SAFETY MOUNT MOUNTED ON A SKI.
AT378688B (en) * 1984-01-19 1985-09-10 Huber Geraetebau Gmbh ADJUSTMENT DEVICE FOR SAFETY SKI BINDINGS
EP0175912A1 (en) * 1984-08-24 1986-04-02 Siemens Aktiengesellschaft Strain-gauged device for measuring components of force and moment

Also Published As

Publication number Publication date
EP0305324A1 (en) 1989-03-01
DE3868564D1 (en) 1992-04-02
ATE72765T1 (en) 1992-03-15
US4860595A (en) 1989-08-29

Similar Documents

Publication Publication Date Title
EP1661606A1 (en) Pedal for measuring mechanical parameters
WO1987001923A1 (en) Apparatus for the detection and correction of anomalies in the equilibrium of the human body
EP0530449A1 (en) Device for modifying the pressure distribution of a ski on its sliding surface
EP0317429B2 (en) Calibrating process for force or torque measuring apparatuses
EP2532400A1 (en) Starting device for a competitor in a sports competition
CH632593A5 (en) ELECTRONIC SCALE.
EP0305324B1 (en) Device for adjusting a safety ski binding
FR2609953A1 (en) METHOD AND DEVICE FOR TESTING THE ANTI-LOCK BRAKING SYSTEM OF A VEHICLE
EP0126745B1 (en) Weighing apparatus with deformation gauges, particularly person weighing apparatus
FR2554229A1 (en) FORCE WEIGHING APPARATUS
FR2494434A1 (en) ELECTRICAL BALANCE COMPRISING A WEIGHT OR LEVER FOR CALIBRATION
FR2643608A1 (en)
FR2617282A1 (en) Device for measuring and monitoring the tension in a belt using constant deformation with measurement of the force exerted on a means acting as a strain gauge
FR2675578A1 (en) DEVICE FOR TESTING TESTS IN FLEXION IN A CRYOGENIC AMBIENT ENVIRONMENT.
CH631766A5 (en) DEVICE FOR MEASURING AND RECORDING DEFECTIONS.
EP4216821A1 (en) Device and method for measuring a muscular strength of a patient
EP0965834A1 (en) Device for evaluating friction properties of a surface
FR2634279A1 (en) Device for three-dimensional measurement (tracing)
FR2817159A1 (en) REAR SUPPORT DEVICE FOR A SHOE RETAINING ASSEMBLY ON A SPORTS MACHINE
CH637212A5 (en) APPARATUS FOR ADJUSTING A SAFETY MOUNT MOUNTED ON A SKI.
EP0852329A1 (en) Weighing apparatus with keyboard integrated into the scale
BE1028775B1 (en) DEVICE AND METHOD FOR MEASURING MUSCLE STRENGTH OF A PATIENT
WO2019011927A1 (en) Method and device for determining the direction and the amplitude of a force applied to a propulsion nacelle for a boat
FR2534376A1 (en) METHOD FOR DETERMINING THE LOAD CAPACITY OF COATING ELEMENTS FOR SCAFFOLDING, AND APPARATUS FOR IMPLEMENTING THE METHOD
FR2604364A1 (en) APPARATUS FOR REEDUCATION, ESPECIALLY FOR MUSCLES AND ARTICULATIONS OF THE ENDS

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB LI

17P Request for examination filed

Effective date: 19890816

17Q First examination report despatched

Effective date: 19900810

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920226

Ref country code: AT

Effective date: 19920226

REF Corresponds to:

Ref document number: 72765

Country of ref document: AT

Date of ref document: 19920315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3868564

Country of ref document: DE

Date of ref document: 19920402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920831

Ref country code: CH

Effective date: 19920831

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST