JPS6258748B2 - - Google Patents

Description

Claim 1: A safety ski binding with toe connection means and heel connection means adapted to cooperate with corresponding parts of a ski boot, wherein said toe connection means 5 are connected to a support web part 16 and upwardly from said support web part 16. The toe connecting means 5 is movable in the longitudinal direction of the ski binding and is spring-biased in the direction toward the heel connecting means 6. Features safety ski bindings.

2. A safety ski binding according to claim 1, characterized in that the toe coupling means comprises a trochanter (5) rotatably mounted on the central shaft (12).

3. The heel coupling means comprises U-shaped clamps 26, 27, which are mounted so as to be pivotable about a fixing pin 25 of the ski binding. Safety ski binding according to paragraph 1 or paragraph 2.

4. According to any one of claims 1 to 3, the toe connecting means and the heel connecting means are connected to each other above the base plate 4 on which the toe connecting means and the heel connecting means are attached. Safety ski bindings listed.

5. The heel coupling means or traction clamps have two parallel upward locking clamps 27 with recesses facing towards the front of the ski binding, thereby allowing upward release of the heel part of the ski boot 3. The upper edge 30 of the recess extends at an angle from the horizontal plane in order to allow the locking clamp 27 to step on the ski boot from above the ski binding during ski binding. 5. A safety ski binding according to claim 1, further comprising an entrance edge (32) extending upwardly and rearwardly from the end of the upper edge (30).

6. At a point approximately corresponding to a plane extending through the skier's tibia, the boot has on each side a connecting trochanter 33 which cooperates with the locking clamp 27 to clamp the boot in the binding. A safety ski binding according to claim 5, characterized in that the ski binding is characterized in that:

7. The trochanter 5 of the toe connection means is a bicone with a lower conical surface 18 that allows the ski boot to step into the binding from above and a lower conical surface 17 that allows the ski boot to be released upwards. The safety ski binding according to claim 2, characterized in that it is a shaped trochanter.

8. The trochanter 5 of the toe coupling means is rotatably mounted around an upright pin 12, which in turn is mounted on a slider 10, which slider is slidable in the longitudinal direction of the binding and is spring-loaded. 8. A safety ski binding according to claim 7, characterized in that:

9 that the slider 10 is slidably guided by two parallel guide rods 11 and that the spring action is provided by a shouldered screw 21 screwed into the front part of the binding; 9. A safety ski binding according to claim 7, characterized in that pressure spring means (23) are provided between the shoulder of the screw and the slider (10).

10. The safety ski binding according to claim 4, characterized in that the ski binding is attached together with the base plate 4 above the ski with a slight gap therebetween.

11. Claims characterized in that the toe connection means and the heel connection means, that is, the heel clamp, are formed such that there is a slight gap between the lower surface of the ski boot 3 and the upper surface 7 of the binding. Safety ski bindings as described in Section 4.

Description This invention relates generally to ski bindings, and more particularly to slalom bindings, also known as release bindings. A slalom binding has toe and heel fastening means that cooperate with the slalom boot (ski boot) so that no release of the boot occurs during normal skiing, but when the relative A force applied between the slalom boot and the binding releases the boot from the binding. It is necessary to ensure that a release is obtained in response to the ski boot being subjected to large relative forces to the slalom binding, or being lifted out of the binding at the heel fastening means or perhaps at the toe fastening means.

Ski bindings of this type are well known in the art, and the most commonly used ski bindings today include two separate parts: a toe connection and a heel connection. The heel coupling means are formed to be superimposed by special actuation, and the toe coupling means generally include a bracket which is rotatable about a vertical axis but held in a predetermined central position by an adjustable spring. There is. Ski boots (slalom boots) are manufactured by pressing the ski boot down onto the binding, moving the toe cup (a cup-shaped member at the toe) to a position below the bracket at the toe connection means, and then stepping down on the heel connection means.
Clamping to the binding by clamping the heel of the boot to the ski or binding. In the past, it has been found that when rotating under load, the frictional forces between the boot and the ski become too high, so that the binding is not released early enough. In order to eliminate this drawback, a wear-resistant plate is installed immediately behind the toe bracket on the bottom plate connected to the toe connection means. In this case, the bracket of the toe cup should be adjusted so that the boot is constantly pressed against the wear plate, and the pressure is such that the binding actually releases when the boot is rotated strongly relative to the ski. It is important to adjust.
If the boot is pressed too hard, the binding may not be released, and if the clamp is too weak, the binding may not be released at too low a force. Furthermore, the boot must be pressed against the binding by the heel coupling means with such force that the binding is released when the boot is lifted with a precisely defined force.

This type of binding is disadvantageous in several ways. Both the toe connecting means and the heel connecting means,
It must be adjusted very carefully and precisely according to the skier's weight, skill, runway conditions, and other factors, which is a time-consuming and exacting process. Also, since snow, ice, sand, etc. can change the release value on the bottom of the boot, it is necessary to thoroughly clean the bottom of the boot when adjusting the binding and during skiing. Furthermore, the wear plates for the toe cap of the boot wear over time, requiring frequent readjustment of the binding. Because the binding is comprised of two parts, precision is required when attaching the binding to the ski, and coarse and fine adjustments to the release force are required after the binding is attached to the ski.

To overcome these drawbacks, another type of binding was developed called plate binding. In this binding, toe coupling means and heel coupling means are attached to a releasable plate which can be clamped to the ski by two fastening means. One fastening means is provided in each of the front and rear portions of the plate.

In such plate ski bindings, the release is effected by rotational and lifting forces; upon release, the entire boot and plate unit is released, and the fastening means remain on the ski.

However, even in this type of ski binding, there are two adjustment means, one in the front part of the plate and one in the rear part of the plate, and a wear-resistant plate is installed just behind the toe connection means attached to the ski, and it is possible to prevent sand or other foreign particles from forming on the ski binding. The rotational release value may vary. The toe connection means and the heel connection means are also separated from each other and must be adjusted by means of two separate adjustment screws. Also, similar to the above-mentioned types of bindings, when the ski flexes in a pit or hump, the toe coupling means and heel coupling means may move, causing the ski to flex in the pit or hump. There is a risk that the binding may be released incorrectly.

Another type of ski binding that has been developed to remedy these deficiencies includes a plate screwed to the underside of the boot in cooperation with two side covers screwed to the ski. This binding is also sensitive to snow, ice, and other foreign objects on the ski boot or under the plate, which can easily penetrate the clamping mechanism of the side covers, especially since side covers must be tightly clamped for various reasons. It becomes difficult for children to put on ski boots that include attachment plates on the ski binding.

Most conventional ski bindings are designed to allow the boot to slide into the binding from the toe section first, but many skiers prefer to insert the heel of the boot into the ski or sole first. It looks more natural when worn. In most conventional slalom bindings, a heel coupling means is provided for clamping the boot at its rear end, but for orthopedic reasons it forms a substantially longitudinal extension of the shin section. It is more appropriate to provide a heel connection means so as to do so. In this case, the pivoting and subsequent release takes place approximately around the center of the leg, rather than slightly behind the center of the leg as in conventional bindings.

It is therefore an object of the invention to provide a binding that can be connected to the ski in a simple manner, that the ski boot can be easily stepped into the binding, that the toe connection means, the heel connection means and the intermediate plate are formed as an integral unit, and that the binding can be easily connected to the ski, and that the binding can be easily connected to the ski, and that the toe connection means, the heel connection means and the intermediate plate are formed as an integral unit, and that the binding can be easily connected to the ski. Therefore, the release is good, the toe area can be released upwards, the heel area of the ski boot can also be released upwards, the ski boot has a common single adjustment means for the entire binding, and the ski boot can be released in an upward direction. They remain tight and secure, are easily transferable from one ski to another, are essentially insensitive to snow, ice, mud and other foreign objects, both mechanically and in the lower part of the boot, and the skis can be easily moved after the binding is released. To provide a safety ski binding for downhill skiing that allows easy stepping on the shoe, is completely insensitive to deflection of the ski on pits or humps, and does not require any maintenance.

The invention comprises a toe coupling means and a heel coupling means cooperating with corresponding parts of the ski boot, the toe coupling means being spring-loaded in the direction of the heel coupling means, for example a support web part of a cylindrical shaft and a heel coupling means. A safety ski binding for downhill skiing is formed with a conical portion having an upwardly diverging shape.

The toe connection means and the heel connection means are connected to each other by a connection plate, so that the entire binding can be mounted directly to the ski as one integral unit. The toe coupling means is spring-loaded and has a conical shape with an upwardly diverging conical portion, thereby allowing upward and lateral release of the toe portion of the boot in response to excessive loads. Preferably it converges upwardly above this upwardly diverging cone. By contacting the upper part of the bicone, the cones can be stacked to form a bicone, and it is also possible to step on the boot by pushing the boot straight down. Preferably, the toe connecting means having such a shape is constituted by a trochanter that is non-rotatably or rotatably attached to the central shaft. The heel coupling means includes a pair of clamps having a groove for engaging the heel portion of the boot and cooperating with a trochanter on the boot substantially in line with the skier's shin. A clamp serving as a heel connection means is preferably rotatably attached to the intermediate plate and is configured such that the ski boot can be attached by pressing the heel portion of the ski boot directly downward. According to a preferred embodiment of the invention, the ski boot is not in direct contact with the coupling plate, and there is a small space between the coupling plate and the ski boot, so that the ski binding is free from snow on the underside of the ski boot.
Considerably insensitive to ice and other foreign objects.

Preferred embodiments of the present invention shown in the drawings will now be described in more detail with reference to the drawings.

FIG. 1 is a perspective view showing the ski binding according to the present invention together with ski boots as seen obliquely from the front;
Figure 2 is a perspective view showing only the ski binding in Figure 1 with the ski boots removed, Figure 3 is a vertical sectional view of the ski binding in Figure 1, and Figure 4 is a partial view of the ski binding in Figure 1. FIG.

Downhill safety ski binding 1 shown in the figure
is formed as an integral unit and is attached to the ski 2 for use with a ski boot 3 with special fittings adapted to the ski binding 1.
The ski binding 1 has a base plate 4 which at its front end has toe connection means for a conical or biconical trochanter 5 and at its rear end has heel connection means 6 for a ski boot 3. Each is equipped with

The substrate 4 is formed as an at least partially hollow box including a top plate 7, a bottom plate 8 and side plates 9, as best shown in FIG.
The top plate 7 and the bottom plate 8 are made of metal, such as aluminum, which has been appropriately treated to be repellent to snow, ice, mud, and the like. The base plate 4 has at its front end the above-mentioned toe connection means for the ski boot 3 and at its rear end the heel connection means for the ski boot 3.

The toe coupling means comprises a slider 10 which is slidable in the longitudinal direction of the ski binding 1 inside the base plate 4. The slider 10 is guided by two longitudinally extending guide rods 11. A pin-like screw (upright pin) 12 mounted inside the slider 10 extends upwardly through a longitudinal slot 13 in the top plate 7. A trochanter 5 is attached to the upper part of the screw 12 via a ball bearing 14, and the trochanter 5 can be rotated around the screw 12 with the minimum possible frictional force. The trochanter 5 has a proximal guide disk 15 mounted adjacent to or in contact with the top plate 7, with a short length of web portion 16 extending from the guide disk 15.
extends upward so as to enter a conical portion 17 having a shape that diverges upward. The cone angle may be changed depending on the circumstances, but a suitable cone angle may be 45°. Since the trochanter 5 is integrally formed from the conical portion 17 with a second conical portion 18 whose shape converges upward, the shape of the trochanter 5 is biconical with a conical corner end or a narrow boundary surface 19. It takes shape. The conical part 17 performs a release action by rotating the ski boot 3 upward from the heel coupling means, and the conical part 18 performs a release action by moving the cup-shaped part of the toe downwardly above the conical part 18 to release the ski boot 3. Enables entry into binding 1. A protruding screw support member 20 is fixed to the front end of the substrate 4, and a screw 21 extends rearward through the screw support member 20 to the shoulder of the slider 10.
Small diameter portion 22 of screw 21 facing slider 10
is tapered, and a shoulder portion is formed between the large diameter portion and the small diameter portion 22 of the screw 21. There are many cup-shaped springs 23 in the small diameter portion 22,
Those springs 23 are connected to the shoulder of the screw 21 and the slider 1.
It is tightened between 0 and 0. Therefore, by adjusting the screw 21, the tightening force on the ski boot 3 can be increased or decreased. Furthermore, by increasing or decreasing the number of cup-shaped springs 23, the ski binding 1 can be easily adapted to different sizes or types of ski boots.

The ski boot 3 has a connecting plate 2 for cooperating with the trochanter 5.
4 on the cup-shaped part of the toe. Connecting plate 2
4 attaches the ski shoes 3 by screwing or other suitable means.
It is stably attached to the base and has an arcuate or angled shape. The angle and length of the connecting plate 24 are adapted to the desired effect. A connecting plate 24 with a small length or a wide opening angle allows a faster release than a connecting plate 24 with a large length or a narrow opening angle. The arcuate or angled shape allows the boot 3 to rotate somewhat with respect to the trochanter 5 when the trochanter 5 is pressed forward against the action of the spring 23. If the torque does not exceed the maximum torque for release, the spring-loaded trochanter 5 pushes the boot 3 back into its initial position as soon as the torque or rotational force disappears. The ski binding 1 is completely symmetrical so that the boot 3 rotates with equal effect in both directions. At the rear end of the ski binding 1, the top plate 7 and the bottom plate 8 project slightly outward from the base plate 4, and between the projecting portions of the top plate 7 and the bottom plate 8, a heel connection means 6 is arranged around an upright or fixed pin 25. It is rotatably mounted. The heel connection means (heel clamps) 6 are formed by a lower plate 26 which is rotatable around an upright pin 25 and has locking clamps 27 projecting upwardly on both sides of the ski binding 1. Locking clamp 27 may be attached to bottom plate 26 by screws or other suitable means. Each locking clamp 27 has a recess in its front edge.
The recess has a lower edge 28 extending parallel to the substrate 4.
It consists of a bottom end 29 rising rearward from the lower edge 28 at a certain angle, and an upper edge 30 extending forward and upward at a certain angle with respect to the horizontal plane.
The locking clamp 27 has a forwardly sloping ear 31 at the top of its recess, the front edge of the ear 31 being oriented upwardly and rearwardly at an angle with respect to the horizontal plane. The angle between the upper edge 30 and the leading edge 32 is determined according to the circumstances. The purpose of the upper edge 30 is to enable release by lifting the boot 3 with a force that exceeds the predetermined maximum clamping force, and the purpose of the leading edge 32 is to lift the boot 3 with a force that exceeds the predetermined maximum clamping force. The purpose is to press it directly downward during binding 1.

The ski boot 3 is equipped on both sides with trochanters 33 for cooperation with the locking clamps 27. Trochanter 33
has an upright or slightly conical flange 34 and a horizontal cylindrical portion 35.
The purpose of the flange 34 is to guide the boot 3 into the correct position against the locking clamp 27, and the purpose of the horizontal cylindrical part 35 is to lock the boot 3 in the locking clamp 27. It is in. Therefore, the dimensions of the cylindrical portion 35 are as follows:
8, the bottom edge 29 and the top edge 30). The toe connection means (toe clamp), the heel connection member (heel clamp) 6, and the corresponding parts of the ski boot 3 are such that the ski boot 3 does not come into direct contact with the top plate 7, and a slight gap is left between them. It needs to be able to handle small amounts of snow, ice or mud without causing problems.

The ski binding 1 can be suitably mounted on the ski 2. FIG. 3 shows how to attach the ski 2 to a screw 36 acting from the underside. Preferably, the rear part of the ski binding 1 is connected by two parallel screws, and the front part is connected by one screw. In order to prevent inadvertent release in pits, humps and other situations, the ski binding 1 can be mounted at a certain distance from the upper surface of the ski 2; for this purpose, the washer 37, which serves as a spacer, 2 and binding 1,
This allows the ski 2 to flex without applying a load to the ski binding 2.

The ski binding 1 may be provided with a strap restraint recess in the form of a slot 38 formed in the rearward projecting part of the sole plate 8, as is known in the art.
It is also possible to provide stopping means, known per se, which release and stop the ski 2 as soon as the boot 3 is moved upwardly from the binding 1.

The ski binding 1 according to the invention can be manufactured and adjusted as a whole in the factory together with the ski boot 3, without the need for complex installation or adjustment. The only adjustment consists in adjusting the release force according to the specific requirements of the skier, and this is done by means of only one adjustment means, namely the screw 21. After bringing the connecting plate 24 into contact with the trochanter 5, step on the ski boot 3 with the heel, and slide the cylindrical portion 35 of the trochanter 33 of the ski boot 3 along the front edge 32 of the locking clamp 27. Attach the ski boot 3 in such a way that the toe part first enters the locking clamp 27, and then The ski boot 3 can be attached to the ski binding 1 very easily by stepping on the biconical trochanter 5 with the tip of the toe. Since there is no connection between the underside of the ski boot 3 and the ski binding 1, both of the above-described attachment methods for the ski boot 3 are equally easy. In both cases, the biconical trochanter 5 moves slightly forward against the action of the cup-shaped spring 23 before the toe or heel of the ski boot 3 engages with the respective coupling means. .

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments, and of course, various modified embodiments including design changes that are obvious to those skilled in the art may be used. Included in the range.