JPS59141968A - Heel clamp of ski boots - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is designed to substantially compress the spring as a heel restraint energy source for normal skiing, in order to make the skier's conscious release of the binding easier. The present invention relates to a ski boot heel fastener having a release means that can be operated with less force even in the so-called high release adjustment, in which the spring pressure is preset to a high level.

In order to free his ski boot, which is fixed on his ski, from the restraint of a ski binding, a skier generally uses a release device, a so-called release lever, which is usually integrated in the heel binding, e.g. Must be operated using ski poles.

However, the release lever is usually used to release the restraint by compressing a spring that serves as a restraint energy source built into the fastener, thereby disengaging the related parts that were previously under the control of the spring pressure. Therefore, especially in the case of so-called high release adjustment, in which the initial deflection of the spring and thus the initial pressure are preset high, the operating force of the opening lever is correspondingly high, ie, the opening lever becomes difficult to operate. This problem poses great difficulty, especially for beginners who often fall down on the ski slopes, when operating the release lever in order to escape from an unnatural falling position.

Therefore, it is an object of the present invention to release the heel of the ski boot to restrain the heel during skiing and to absorb various shocks from the outside world when operating the release lever as a restraint release means built into the heel fastener of the ski boot. Release the engagement relationship with the so-called calcaneus of the heel fixing part, which is rotatably supported on the heel fastener body without compressing the spring or receiving any resistance due to the deflection of the release spring. There is a particular thing.

This objective can be achieved by the following means. That is, (1) Engagement pins that are located inside the main body of the heel fastener and engage with a cam that is always pressed forward by a release spring are provided on both side walls of the rotating main body that is integrally constructed with the calcaneus. be installed horizontally in a substantially horizontal groove, and be able to slide in the front-back direction.

[2] The release lever supported on the upper part of the main body of the heel fastener by a lateral pivot has a grooved cam in its front part, and when the rear part of the release lever is rotated, the above-mentioned engagement pin is is controlled by the upper eye 9m to move forward or backward on a horizontal groove in the integral side wall of the rotating main 3.

The ski boot heel fastener according to the present invention is generally constructed as described above, and its specific details will be explained below based on the drawings.

In FIG. 2, a cam 3 which is slidable in the front and back direction within the main body 1 by the elastic action of the release spring 2 is always pressed forward. Since both ends of the stopper bin 4 are pressed against the front end walls of the elongated holes 5 formed in both side walls of the main body 1, the rotation of the release spring pressure adjustment screw 6 and the spring receiver 7 screwed therein are prevented. The position of the cam 3 remains unchanged even if the initial setting pressure of the release spring increases due to forward movement.

On the other hand, in the upper part of the main body 1, a rotating main body 8 integral with the calcaneus part 8A of the ski boot is provided with a shaft B (see FIG. 3) by a pivot 9, and an engaging pin 10 is provided in the dark groove 8B. It is installed so that it can slide freely in the front and rear directions.

On the other hand, as shown in FIG. 3, an opening lever 11 is supported between the outer side of the body l and the inner side of the side wall of the pivoting body 8, for example by a common pivot 9 with the pivoting body 8, in which case: A grooved cam 12 is bored in the front portion llA of the release lever 11. The profile of the grooved cam 12 is the same as that of the first half 12 before the rotation operation of the release lever 11 and during the operation process.
At A → 12B, the engagement pin 10 is engaged with the engagement slope 3A of the cam 3, and the second half of the operation process 1.2B
- In hl 2 C, when the locking member 10 is completely disengaged from the engaging slope 3A and the rotating body 8 is about to rotate upward, it passes the cam tip 3B without contacting it and with enough time. The grooved cam 12 has a shape that allows
The distance 12A-12B to the bending point 12B is the axis 9
12B-+
12C is the bending point 12 so that the engaged state is gradually released.
It is desirable to form an obtuse angle with respect to the tangent at B.

In that case, the distance 12A-→1 in which the engagement is maintained is
2E is designed to resist shocks from the outside world while skiing, and has a length that prevents the engagement pin from immediately running into the release path 12B-4120 side with a slight rotation of the release lever 11. In the uncoupling process 1.2E→12C, after the engaging pin 10 moves forward on the horizontal groove 8B inside the side wall of the rotating body 8 when the release lever 11 is intentionally rotated, the upward pivoting movement of the rotating body The length is selected so that it will not be obstructed by contact with the cam tip 3B of the bin IO.

In addition, in the ski boot heel fastener according to the present invention, when the ski boot is stepped into the fastener with snow adhered to the back of the heel sole of the ski boot, the rotating body 8 is moved by an amount corresponding to the thickness of the adhered snow layer. is forcibly lifted upwards, and as a result, the engagement pin 10 is also lifted, so the cam 3 moves rearward while resisting the elastic force of the release spring 2. In such a case, since the engagement pin 10 is always subjected to the pressure of the release spring 2 via the cam 3, this pressure is further applied to the pressure surface 1 of the grooved cam 12.
2A to 12B, and as a result, during the opening operation process by the opening lever 1, a frictional force is generated on the pressure surface,
This may impair easy opening operation. Therefore, a preferred embodiment of the ski boot heel fastener according to the present invention includes:
Instead of receiving the pressure from the engagement pin 10 directly by the pressure surface 12A-412B of the grooved cam 12, which is usually stamped out of a steel plate, a low-friction plastic material 13 is placed above the engagement pin 10. A pin 14 is attached to the front part 11A of the release lever 11 over the entire inner width of the release lever 11, which is formed in a U-shape with the main body l in between when viewed from above.
By caulking and fixing using the retaining pin IO
If the plastic material 13 receives the pressure from
Even when a layer of snow adheres to the back of the heel of the ski shoe, the release lever can be easily operated, which is convenient.

In the ski boot heel fastener according to the present invention, during normal skiing, the release lever 11 always maintains the engagement pin 10 in the engaged state with the cam engagement slope 3A, as shown in FIG. A torsion spring 15 is fitted, for example, on the pivot shaft 9 between the front part of the rotating body 8 and the rear part of the release lever 11, and the moment of the torsion spring 15 constantly engages the front part 11A of the release lever. It is preferable to press and hold the bottle 10.

The ski boot heel fastener according to the present invention configured as described above can function as follows. That is, shocks that are not dangerous to the skier and occur during normal skiing are absorbed by the compression process of the release spring 2 when the engagement pin 10 moves within the range up to the cam tip 3B, and on the other hand, the preset release When a dangerous load equal to or greater than the spring pressure is applied to the calcaneus portion 8A, the engagement is released by the engagement pin 10 passing over the cam tip 3B while compressing the release spring 2 via the cam 3. The heel of the ski boot is released.

Next, when the skier consciously tries to release the heel of the ski boot from the restraint of the binding due to an accidental fall or the end of skiing, by applying a turning moment to the rear part of the release lever 11B with a ski ball or with the hand, Engagement bin 10
moves forward inside the horizontal groove 8B of the rotating body 8 by the grooved cam 12 and completely separates from the cam engagement slope 8A, so the release spring 2 only overcomes the resistance moment of the torsion spring 15 without being compressed. , the skier releases the heel restraint very easily, but by being lifted up, the cam 3
Even when the release spring 2 is slightly compressed,
A low-friction plastic material 1 is placed on the grooved cam pressure surface 12A→12B on the release lever 11 that receives the pressure of the retaining pin IO.
3 is fixed and receives pressure from the plastic material 18, so the release lever 11 can still be easily operated.

When the engagement is released as shown in Figure 4, after the
A positioning stopper (not shown) provided between the ski boot and the main body l allows the ski shoe to be stopped at an appropriate angle for the heel of the ski boot to be depressed. After that, in order to restrain the heel of the ski boot in the binding again, the heel of the ski boot must be used to press the pedal 8 which is integrated with the rotating body 8.
When stepping down on C, the engagement pin 10 engages the horizontal groove 8 of the rotating body.
While occupying the innermost position of the engagement maintaining surface 12A of the release lever upper groove cam 12 in B, the engagement surface moves beyond the cam tip 3B while resisting the elastic force of the release spring 2 via the cam depression slope 3C. The locked state of the heel fastener is achieved by running into 3A.

Note that when the rear part of the release lever LIE is rotated by a ski pole or by hand when the pedal 8C is depressed, the engagement pin 10 lowers the rotation body 8 without compressing the grooved cam group spring 2, and the heel of the ski boot is lowered. can also be fixed.

[Brief explanation of the drawing]

Embodiments of the invention are shown; FIG. 1 is a plan view, and FIG.
The figures are a cross-sectional view taken along the line A-A of FIG. 1, FIG. 3 is a cross-sectional view taken along the line B-B of FIG. 1, and FIG. 4 is a diagram showing a disengaged state. 1...O body, 2...spring, 3...cam, 3A...
・Engagement slope, 3B...Cam tip, 3C...Stepping slope, 4...Stopper pin, 5...Elongated hole, 6...
Spring pressure adjustment screw, 7... Spring holder, 8... Rotating body,
8A...calcaneus part, 8B...horizontal groove, 8C...pedal, 9...pivot, IO...engaging pin, ll/fist/release lever, llA...front part, lIB ... Release lever rear s, 12... Groove cam, 12B--Bending point, 1
3#...Plastic material, 14--pin, 15...
・Torsion spring. Patent applicant World Hope Co., Ltd.

Claims (1)

[Claims] 1. A main body that is elastically supported in the longitudinal direction on the ski, and pivotally supported in the lateral direction at the rear upper part of the main body,
A ski boot heel fastener comprising a rotating body having a heel receiving part that elastically and releasably supports the ski boot heel in an upward direction,
An engagement pin that engages with a cam that is constantly pressed forward by a release spring inside the main body is installed laterally in a groove substantially parallel to a plane provided inside the side wall of the rotating main body. The release lever is pivotably supported in the lateral direction at the rear upper part of the main body and has a grooved cam at its front portion, and the rear portion of the release lever is rotated. A ski boot heel fastener, characterized in that the retaining pin is controlled by the grooved cam to move forward or backward on a parallel groove inside the side wall of the rotating body. 2. Claim 1, characterized in that the grooved cam consists of a substantially arc-shaped portion having the entire pivot axis of the release lever as the center, and a bent groove forming an obtuse angle with respect to the tangent to the arc-shaped portion. The ski shoe heel fastener described. 3. Claim 2, characterized in that a low-friction plastic material is attached to the engagement pin pressure surface of the grooved cam.
Heel fasteners for ski boots as described in Section 1. 4. The ski boot heel fastener according to claims 2 to 3, characterized in that a torsion spring is fitted between the front part of the rotating body and the rear part of the release lever.