SAFETY SKI BINDING

Description

[0001] The present invention generally relates to safety ski bindings, and more particularly the invention is directed to a type of slalom binding, so called release binding, which is formed with a toe fastening means and a heel fastening means which cooperate with the slalom boot in such a way, that the binding does not cause a release of the boot at normal skiing but oppositely causes a release of a boot from the binding at a relative force between the slalom boot and the binding exceeding a predetermined force. It must be possible to obtain a release either in that the boot is subjected to a strong rotating movement in relation to the slalom binding or in that the boot is raised from the binding at the heel fastening means or possibly at the toe fastening means.

[0002] Ski bindings of this type are well known in the art and the ski binding which is at present most commonly used comprises two separate parts, viz. a toe connection means and a heel connection means. The heel connection means is formed so that it may, by a special actuation, be fold up whereas the toe connection means comprises a bracket which generally can be rotated about a vertical shaft but which by an adjustable spring is kept in a predetermined central position. The slalom boot is clamped into such a binding in that the boot is put down on the binding and the toe cup is moved into a position underneath the bracket at the toe connection means, whereupon the heel connection means is treaded down so as to clamp the heel portion of the boot to the ski or the binding.

[0003] It has proved that the friction between the boot and the ski at rotation under load often is too high, so that the binding does not release sufficiently early, and to eliminate the said disadvantage an anti-friction plate has been mounted just behind the toe bracket at a bottom plate which is connected to the toe connection means. In this case it is important that the toe cup bracket is adjusted so that the slalom boot is kept pressed onto the friction plate and so that the said pressure is such that the binding really releases if the boot is rotated vigorously in relation to the ski. A too strong pressing downwards of the boot may cause that the binding does not release and a too light clamping may cause that the binding releases at too low forces. Also the heel connection means must press the boot to the binding with such force that the binding releases when the boot is raised with an exactly predetermined force.

[0004] Ski binding of this type are disadvantageous in some respects. Both the toe connection means and the heel connection means must be adjusted very carefully depending on the weight of the skier, the skillness of skiing, the condition of the ski path and many other factors. The adjustment must be made very exactly what is both a time consuming and an accuracy demanding work. It is also very important that the boot is completely clean at the bottom surface both when adjusting the binding and when skiing, since snow, ice, sand or any other material at the bottom surface of the boot cause changes of the release values. Further the friction plate for the toe cup of the boot is worn by time, and the binding frequently must be readjusted. Since the binding is formed with two parts there is also a need for great accuracy when mounting the binding on the ski, and both rough adjustment and fine adjustment of the release forces must be made after the binding is mounted on the ski.

[0005] In order to eliminate some of the above mentioned disadvantages another type of ski binding has entered the market which is a so called plate binding in which the toe connection means and the heel connection means are mounted in a plate which is releasable and which can in turn be clamped to the ski by means of two fastening means, one for the front part of the plate and one for the rear part of the plate.

[0006] Also in such plate ski bindings the release is made by rotating and lifting forces, and at release the entire unit of boot and plate is released whereas on the contrary the fastening means remain on the ski.

[0007] Also in this type of ski binding there are two adjustment means for the plate, one for the front part of the plate and one for the rear part thereof. Also in this binding there is an anti-friction plate provided just behind the toe connection means mounted on the ski, and also in this case snow, ice, sand and other impurities may cause a false rotation release. Also in this case the toe connection means and the heel connection means are separated from each other and also in this case the adjustment must be made by means of two separate adjustment screws. Like in the previously discussed ski binding the toe connection means and the heel connection means move when the ski bows for instance at a pit or a hump, and there is a serious risk that the binding falsely releases at pits or humps of the slope.

[0008] Another type of ski binding, in which attempts have been made to eliminate further or other disadvantages comprises a plate, which is screwed to the underside of the boot and which co-operates with two side palls which are screw connected to the ski. Also this binding is sensitive to snow, ice or impurities under the boot or under the plate, impurities may easily enter the clamp mechanism for the side palls, and the side palls must for various reasons be very strongly clamped, and therefore it may be difficult to put on the boot including the attachment plate on the ski binding, especially for children.

[0009] Most of the previously known ski bindings also involve the disadvantage that the boot always must enter the binding with the toe part first whereas it may seem natural to many people to clamp the binding with the heel part of the boot firstly put down on the ski or the bottom plate. In most of the previous slalom bindings the heel connection means is provided to clamp the boot at the rearmost part thereof, whereas for orthopedical reasons it is considered more suitable to provide the heel connection means so as to form substantially an elongation of the longitudinal direction of the fibula (the lower leg portion). In this case a rotation and a subsequent release follows substantially about the center of the leg rather than some distance behind the said center like in the previously known ski bindings.

[0010] A ski binding is known from the DE-A-2.200.056 which comprises a toe roller and heel connection means in the form of two hooks engaging a cross pin in the ski boot, and both the toe roller and the heel connection hooks are mounted in relation to the ski. There is a single adjustment means for the entire ski binding. This said ski binding, however, is disadvantageous in that the plate on which the toe rollers and the heel connection hooks are mounted is not rigidly fixed to the ski; the toe roller locks the boot against release in the vertical direction; the toe roller does not allow to tread the boot down with the toe; the said mounting plate is not mounted with the major portion on a slight distance above the ski; and the heel connection means is formed so that by rotating the toe portion of the boot sideways one of the heel clamps is released from the ski boot as soon as the boot is released whereas the other heel clamp is still retaining the opposite side of the boot.

[0011] Basis of the invention therefore is the problem to provide a safety ski binding for downhill skiing which:

is formed as an integral unit of toe connection means, heel connection means and intermediate plate,

provides a good release depending on side forces,

makes a release possible even in the direction upwards of the toe portion,

which keeps the boot safety and free from play,

which may easily be moved to other skies,

which is basically unsensitive to snow, ice, dirt and impurities both as concerns the mechanism and present under the boots,

in which the boot can very easily be treated after the binding has released;

which is completely unsensitive to bows of the ski at pits or humps etc.,

and which is completely maintenance-free.

[0012] Thus the invention relates to a safety ski binding for downhill skiing comprising a base plate supporting at one end a toe connection means (5) and at the other end a heel connection means, in which the toe connection means is a rotatable roller having a web portion adapted to co-operate with the ski boot, said roller being mounted movably in the base plate in a longitudinal direction thereof and being spring biassed towards the heel connection means, and in which the heel connection means is in the form of a U-shaped clamp including two parallel and upright lock clamps mounted to a bottom plate, said lock clamps having recesses facing the front part of the binding co-operating with connection means provided on each side of the ski boot, the upper edge of the recesses extending at an angle upwardly to the horizontal plane to enable a release upwards of the heel connection means the said lock clamps further having entering edges extending upwardly and rearwardly from said recesses in order to enable a treading down of the ski boot from above the binding, characterised in that the base plate is rigidly fixed to the ski with the major portion of the base plate at a slight distance above the upper surface of the ski, that the toe connection roller is a biconic roller which co-operates with a concavely formed portion of the ski boot and the roller having a conical upper surface allowing the boot to tread downwardly into the binding from above and having a conical under surface diverging upwardly from the web portion enabling the toe end of the boot to release in an upwards direction, that the lock clamps are rigidly fixed to the bottom plate, that the U-shaped clamp is rotatably mounted about a vertical pin in the base plate, that the boot does not directly contact the base plate, and that on treading and releasing the toe connection roller moves forwardly against the spring.

[0013] Preferred features of the invention may be seen from the dependent claims.

[0014] Further characteristics and advantages of the invention will be evident from the following detailed specification in which reference will be made to the accompanying drawings.

[0015] In the drawings:

Figure 1 diagrammatically and in a perspective view nearly from in front illustrates a ski bonding according to the invention and the belonging boot;

Figure 2 diagrammatically and in a perspective view from behind shows the same ski binding but without the boot;

Figure 3 is a vertical cross section centrally through an embodiment of the ski binding and

Figure 4 illustrates the same ski binding from the above and in part diagrammatically.

[0016] With reference to the drawings there is shown a safety ski binding 1 for downhill skiing which is formed as an integral unit and adapted to be mounted on a ski 2 and for use together with a ski boot 3 having special fittings adapted to the binding. The binding generally comprises a base plate 4 which at its front end carries a toe connection means in a form of a conical or biconical roller 5 and which at the rear end carries a heel connection means 6 for the boot.

[0017] As best illustrated in figure 3 the base plate 4 is formed as a box which is at least partly hollow and which comprises a top plate 7 a bottom plate 8 and sides 9. The plates 7 and 8 may be of metal for instance aluminium, which is suitably treated to act repellant to snow, ice and dirt etc. At the front end the base plate 4 carries the toe connection means 5 for the boot 3 and at the rear end the base plate carries the heel connection means 6 for the boot 3.

[0018] The toe connection means includes a slide 10 which is slidable in the longitudinal direction of the ski binding inside the base plate 4 and it is guided by two longitudinally extending guide bars 11. In the slide 10 a pin screw 12 is mounted which extends up through a longitudinal slot 13 of the top plate 7. The upper portion of the pin screw 12 carries the toe connection roller 5 on ball bearings 14 so that the roller by the least possible friction can rotate about the pin screw 12. The roller 5 is formed with a guiding base disc 15 contacting or provided adjacent the top plate 7, and from the base disc 15 a short web portion extends upwards which runs into an upwardly diverging cone 17. The cone angle can be varied according to the circumstances, but a suitable cone angle may be 45°. From the diverging cone 17 the roller is formed with an upwardly converging second cone 18, so that the roller provides a bicone having a cone angle tip or narrow border surface 19. The cone surface 17 acts to enable a release by rotating the boot 3 upwards from the heel connection means and the cone surface 18 acts to enable a treading of the boot into a binding with the toe cup moved downwards over the cone surface 18. At the front short end the base plate 4 has a projecting screw support 20 which is fixed connected to the base plate, and through the said screw support a screw 21 extends rearwardly to a shoulder of the slide 10. The portion of the screw 21 facing the slide 10 is tapered at 22, and there is a shoulder between a narrow portion 22 and the wide portion of the screw. On the narrow portion 22 of the screw a number of cup springs 23 are mounted and the said springs are clamped between the shoulder of the screw 21 and the slide 10. By adjusting the screw 21 it is consequently possible to provide a stronger or lighter clamp force for the boot. By further reducing or increasing the number of cup springs the binding can easily be adapted to different sizes of boots or to boots of different types.

[0019] For co-operation with the roller 5 the boot is provided with a connection bar 24 at the toe cup thereof. The connection bar 24 is screwed or in any other way stably mounted on the boot and it is bow formed or angularly formed. The angle and the length of the connection bar 24 is adapted to the intended effect. A short connection bar or a connection bar having a wide opening angle gives a quicker release than a long connection bar or a bar having a more narrow opening angle. By the bow form or angle form the boot gets a possibility to rotate some distance in relation to the roller 5 while the said roller 5 is pressed forwards against the action of the cup springs 23, and if the torque does not exceed the maximum torque for release the spring biassed roller 5 presses the boot back to its initial position as soon as the torque or the rotation force ceases. Since the binding is completely symmetrical the boot may rotate in both directions with the same effect. At the rear end of the binding the top plate 7 and the bottom plate 8 projects some distance outside the base plate 4 and between the said projecting portions of the plates 7 and 8 the heel connection means 6 is rotatably mounted about a vertical pin 25. The heel connection means or the heel clamp is formed by a bottom plate 26 which is rotatable about the vertical pin 25 and which at each side of the binding carries an upwardly projecting lock clamp 27. The lock clamps 27 can be screwed or mounted in any other way at the bottom plate 26 and at the front edges each lock clamp 27 is formed with a recess preferably in the form of three straight edges of which the bottom edge 28 extends parallely to the base plate 4, the rear end 29 extends upwards at some ang!e rearwardly from the bottom edge 28 and the upper edge 30 extends forwards-upwards at some angle to the horizontal plane. Above the recesses the lock clamps provide a forwardly directed ear 31 the front edge 32 of which is directed upwards-rearwards at some angle to the horizontal plane. The angles of the upper edge 30 and the front edge 32 are determined according to the circumstances. The purpose of the upper edge 30 is to make a release possible by lifting the boot upwards with a force exceeding a predetermined maximum clamp force, and the purpose of the front edge 32 is to enable a threading of the boot straight downwards into the binding.

[0020] For co-operation with the lock clamps 27 the boot is provided with a roller 33 on both sides thereof. The roller 33 is formed with a vertical or slightly conical flange 34 and a horizontal cylindric portion 35. The purpose of the flange 34 is to provide a guiding of the boot into exact position against the lock clamps 27, and the purpose of the horizontal cylindric portion 35 is to provide a locking of the boot in the lock clamps. Therefore the dimension of the horizontal portion 35 of the rollers 33 is adapted to the dimensions of the recess 28-30. It should be observed that the toe and heel clamps and the corresponding parts of the boot is preferably formed so that the boot is not in direct contact with the top plate 7 but a small space is present between the boot and the top plate to permit a slight amount of snow, ice or dirt on the boot without causing problems.

[0021] The binding can be mounted in any suitable way on the ski and in Figure 3 is shown how the binding is mounted by means of screws 36 acting from underneath the ski. Preferably the rear portion of the binding is connected by means of two parallel screws whereas the front portion is connected by means of one single screw. In order to eliminate the risk of uninten- sional release in case of pits humps or similar the binding can be mounted on a slight distance above the upper surface of the ski, and for this purpose a space washer 37 is provided between the ski and the binding which permits the ski to bow without inflicting the binding.

[0022] In the conventional way the binding can be provided with recesses for a catch strap for instance in the form of a slot 38 provided in the portion of the bottom plate 8 projecting rearwardly or the binding can be provided with a stop means of a type known per se which releases and stops the ski as soon as the boot is removed upwards from the binding.

[0023] The binding according to the invention may as a complete be manufactured and adjusted in a factory together with a boot and there is no need for a complicated mounting or adjusting. The only thing which possibly remains is the adjustment of the release force depending on special demands from the skier and this is made by one single adjustment means, viz. the screw 21. The boot can very simply be treaded into the binding either in that the toe connection bar 24 is introduced in the toe roller 5 whereupon the boot is treaded downwards with the heel portion, whereby the cylinder part 35 of the boot roller 33 slides along the front edge 32 of the lock clamp 27 and snaps into the recess-28-30, or in that the boot is mounted in the opposite way, viz. so that the heel portion is firstly moved into the lock clamps 27, whereupon the toe portion of the boot is treaded down over the biconical roller 5. Since there is no connection between the underside of the boot and the binding both ways of treading the boot into the binding are like easy, and in both ways the double cone roller is moved somewhat forwards against the action of the cup springs 23 until the toe or heel portion of the boot has snapped into its respective connection means.

[0024] It is to be understood that the above described embodiments of the invention which are illustrated in the drawings are only illuminating examples and that all kinds of modifications may be presented in the scope of the claims.

Claims

1. Safety ski binding (1) for downhill skiing comprising a base plate (4) supporting at one end a toe connection means (5) and at the other end a heel connection means (6), in which the toe connection means (5) is a rotatable roller having a web portion (16) adapted to co-operate with the ski boot (3), said roller being mounted movably in the base plate (4) in a longitudinal direction thereof and being spring biassed towards the heel connection means, and in which the heel connection means (6) is in the form of a U-shaped clamp (26, 27) including two parallel and upright lock clamps (27) mounted to a bottom plate (26), said lock clamps having recesses facing the front part of the binding co-operating with connection means (33) provided on each side of the ski boot (3), the upper edge (30) of the recesses extending at an angle upwardly to the horizontal plane to enable a release upwards of the heel connection means (6), the said lock clamps further having entering edges (32) extending upwardly and rearwardly from said recesses in order to enable a treading down of the ski boot (3) from above the binding, characterized in that the base plate (4) is rigidly fixed to the ski (2) with the major portion of the base plate at a slight distance above the upper surface of the ski (2), that the toe connection roller is a biconic roller which cooperates with a concavely formed portion (24) of the ski boot (3) and the roller having a conical upper surface (18) allowing the boot to tread downwardly into the binding from above and having a conical under surface (17) diverging upwardly from the web portion (16) enabling the toe end of the boot (3) to release in an upwards direction, that the lock clamps (27) are rigidly fixed to the bottom plate (26), that the U-shaped clamp (26, 27) is rotatably mounted about a vertical pin (25) in the base plate (4), that the boot (3) does not directly contact the base plate (4), and that on treading and releasing the toe connection roller (5) moves forwardly against the spring (23).

2. Safety binding according to claim 1, characterized in that the boot (3) at a point substantially corresponding to a plane extending through the tibia of the skier has a connection roller (33) on each side, which rollers coact with the lock clamps (27) to clamp the boot in the binding (1).

3. Safety binding according to claim 1, characterized in that the toe connection roller (5) is rotatably mounted about a vertical pin (12) which in turn is mounted in a slide (10) which is slidable in the longitudinal direction of the binding (1) and which is spring biassed.

4. Safety binding according to claims 1 and 3, characterized in that the slide (10) is slidably guided by two parallel guide bars (11), and in that the spring actuation is adjustable by a screw (21) which is threaded at the front part (20) of the binding (1) and which has a shoulder, whereby a compression spring means (23) is provided between the shoulder of the screw and the slide (10).

5. Safety binding according to claim 1, characterized in that the toe connection means (5) and the heel connection means (6) or the heel clamp (26, 27) are formed so that there is a slight space between the lower side of the boot (3) and the upper side (7) of the base plate (4).

Ansprüche

1. Sicherheitsauslöseskibindung (1) für Abfahrtslauf bestehend aus einer Grundplatte (4) welche an einem Ende Bindungsorgane (5) der Schuhspitze und am anderen Ende Bindungsorgane (6) des Absatzes trägt, Bindung in welcher die Bindungsorgane der Schuhspitze (5) aus einer drehbaren Rolle, mit einem Teil der eine Walze (16) bildet, bestehen, angepasst um mit dem Skischuh (3) zusammenzuarbeiten, genannte Walze in der Grundplatte (4) gelargert um sich in Längsrichtung verschieben zu können und welche durch eine Feder in Richtung der Bindungsmittel des Absatzes beansprucht wird, Skibindung in welcher die Bindungsmittel (6) des Absatzes "U" förmige Klammern (26, 27) sind, welche aus zwei parallelen und nach oben gerichteten, blockierende Klammern (27) besteht, dieselben auf einer Grundplatte (26) gelagert, genannte Klammern die, dem Vorderteil der Bindung gegenüberstehend, Nuten aufweisen und mit den auf beiden Seiten des Schuhes (3) vorgehene Bindemittel (33) zusammenarbeiten, der obere Teil (30) der nach oben gerichteten Nute in einem gewissen Winkel mit der wagerechten Ebene stehend um eine Auslösung nach oben der Bindemittel (6) des Absatzes zu erlauben, genannte blockierende Klammern mit ausserdem, von den genannten Nuten ausgehend, nach oben und nach hinten gerichtete Einschlüpfränder (32) oberhalb der Bindung ausgehend, um das Einschlüpfen des Skischuhes (3) nach unten zu erlauben, die Skibindung ist dadurch gekennzeichnet dass die Grundplatte (4) am Ski (2) so befestigt ist dass der grösste Teil der Grundplatte sich in einem kurzen Abstand über der oberen Fläche des Ski (2) befindet; dadurch dass die Bindungsrolle der Schuhspitze eine doppelkonische Rolle ist die mit einem durch den Skischuh (3) geformten konkaven Teil (24) zusammenarbeitet; dass die Rolle eine obere konische Fläche (16) hat, die das Einschlüpfen des Schuhes in die Bindung von oben ausgehend erlaubt und eine untere konische Fläche (17) hat, die, von dem eine Rolle bildenten Teil (16) ausgehend, gegen oben auseinandergeht um das Auslösen der Schuhspitze (3) nach oben zu erlauben; dadurch dass die blockierenden Klammern (27) an der Grundplatte (26) befestigt sind; dadurch dass die "U" förmigen Klammern (26, 27) in der Grundplatte (4) auf einem senkrechtstehenden Stift (25) drehbar gelagert sind; dadurch dass der Schuh (3) umittelbar mit der Grundplatte (4) Kontakt hat; und dadurch dass beim Einschlüpfen und beim Auslösen, die Bindungsrolle (5) der Schuhspitze sich nach vorn gegen die Feder (23) verschiebt.

2. Sicherheitsskiauslösebindung nach Anspruch 1, dadurch gekennzeichnet dass der Schuh (3) auf beiden Seiten eine Bindungsrolle (33) aufweist die an einem Punkte ungefähr durch eine Linie, dem Schienbein des Skiläufers entsprechend, geht, welche Rolle mit den Klammern (27) zusammenartbeitet um den Schuh in der Bindung zu blockieren.

3. Sicherheitsauslöseskibindung nach Anspruch 1 dadurch gekennzeichnet dass die Bindungsrolle (5) der Schuhspitze auf einem senkrechten Stift (2) drehbar gelagert ist, welcher Stift seinerseits in einer Gleitschiene (10) gelagert ist, die in Längsrichtung der Bindung (1) gleiten kann und die durch eine Feder beansprucht wird.

4. Sicherheitsauslöseskibindung nach den Ansprüchen 1 und 3, dadurch gekennzeichnet dass die Gleitschiene (10), gleitend, durch zwei parallele Führungsstangen (11) geleitet wird; und dadurch dass die Betätigung durch eine Feder, mittels einer Schraube (21) einstellbar ist, welche Schraube am Vorderteil (20) der Bindung (1) mit einem Gewinde versehen ist und die einen Ansatz aufweist, sodass Druckmittel durch Federkraft (23), zwischen dem Ansatz der Schraube und der Gleitschiene (10) vorgesehen sind.

5. Sicherheitsauslöseskibindung nach Anspruch 1, dadurch gekennzeichnet dass die Bindungsorgane (5) der Schuhspitze und die Bindungsorgane (6) des Absatzes oder der Klammern (26, 27) des Absatzes so angeordnet sind dass ein kleiner Zwischenraum zwischen dem Unterteil des Schuhes und der oberen Fläche (7) der Grundplatte (4) besteht.

Revendications

1. Fixation de sécurité (1) pour ski pour la descente comprenant une plaque de base (4) supportant à une extrémité des organes de liaison (5) du bout de la chaussure et à l'autre extrémité des organes de liaison (6) du talon, fixation dans laquelle les organes de liaison (5) du bout de la chaussure sont constitues par un galet rotatif ayant une partie formant rouleau (16) adaptée pour coopérer avec la chaussure de ski (3), ledit rouleau étant monté dans la plaque de base (4) afin de pouvoir se déplacer dans le sens longitudinal et étant sollicité par un ressort vers le moyens de liaison du talon, fixation de ski dans laquelle les moyens de liaison (6) du talon ont la forme de crampons en U (26, 27) comprenant deux crampons de blocage (27) parallèles et dirigés vers le haut, montés sur une plaque de base (26), lesdits crampons présentant des encoches faisant face à la partie avant de la fixation et coopérant avec des moyens de liaison (33) prévus de chaque côté de la chaussure (3), la partie supérieure (30) de l'encoche allant vers la haut en faisant un certain angle avec le plan horizontal pour permettre une libération vers le haut des moyens de liaison (6) du talon, lesdits crampons de blocage ayant en outre des bords d'entrée (32) allant vers le haut et vers l'arrière à partir desdites encoches afin de permettre d'enfiler vers le bas la chaussure de ski (3) en partant du dessus de la fixation, la fixation pour ski étant caractérisée en ce que la plaque de base (4) est fixée au ski (2) de façon que la plus grande partie de la plaque de base soit à une faible distance au-dessus de la face supérieure du ski (2); en ce que le galet de liaison du bout de la chaussure est un galet biconique qui coopère avec une partie concave (24) formée sur la chaussure (3), le galet ayant une surface conique supérieure (16) permettant d'enfiler la chaussure vers le bas dans la fixation en partant du haut et ayant une surface conique inférieure (17) divergent vers le haut à partir de la partie formant rouleau (16) permettant une libération du bout de la chaussure (3) vers le haut; en ce que les crampons de blocage (27) sont fixés à la plaque de base (26); en ce que les crampons en U (26, 27) sont montés à rotation sur une broche verticale (25) dans la plaque de base (4); en ce que la chaussure (3) est directement en contact avec la plaque de base (4); et en ce que lors de l'enfilage et de la libération le galet de liaison (5) du bout de la chaussure se déplace en avant contre le ressort (23).

2. Fixation de sécurité selon la revendication 1, caractérisée en ce que la chaussure (3) présente de chaque côté un galet de liaison (33) en un point correspondant sensiblement à un plan passant par le tibia du skieur, lequel galet coopère avec les crampons (27) pour bloquer la chaussure dans la fixation.

3. Fixation de sécurité selon la revendication 1, caractérisée en ce que le galet de liaison (5) du bout de la chaussure est monté à rotation sur une broche verticale (12), laquelle est montée à son tour dans une glissière (10) qui peut glisser dans le sens longitudinal de la fixation (1) et qui est sollicitée par un ressort.

4. Fixation de sécurité selon les revendications 1 et 3, caractérisée en ce que la glissière (10) est guidée à coulissement par deux barres parallèles de guidage (11); et en ce que l'actionnement par un ressort est réglable par une vis (21) laquelle est filetée à la partie avant (20) de la fixation (1) et qui présente un épaulement, de sorte que des moyens de compression par ressort (23) sont prévus entre l'épaulement de la vis et la glissière (10).

5. Fixation de ski selon la revendication 1, caractérisée en ce que les organes de liaison (5) du bout de la chaussure et les organes de liaison (6) du talon ou crampons (26, 27) du talon sont agencés de sorte qu'il y a un faible espace entre le dessous de la chaussure et le côté supérieur (7) de la plaque de base (4).

Drawing