JPH031A - Ski boots - Google Patents

Abstract

PURPOSE:To obtain a satisfactory wearing comfortability, a high slidability and a high safety by forming a plurality of threaded parts in a first pedestal while forming a plurality of through-holes corresponding to the plurality of threaded parts, in a second pedestal, and by inserting a fastening screw into any one of the through holes and screwing the same into the associated threaded part. CONSTITUTION:A fulcrum shaft 20 coupling between a lower shell 3 including a sole 2 of a shoe body 1 and an upper shell 4 for covering around a human ankle part is composed of a first pedestal 21, a second pedestal 22 and a cover 23 and a fastening screw 24. The first pedestal 21 has a pedestal body 21A and a flange part 21B which are integrally incorporated with each other, and the pedestal body 21A is formed therein with five threaded holes B, D, F, C, U which pierce therethrough. The second pedestal 22 has a pedestal body 22A and a flange part 22B which are integrally incorporated with each other, and the pedestal body 22A is formed therein a recess 27 in which five, in total, through-holes B1, D1, F1, N1, U1 are formed piercing therethrough, corresponding to the screw holes in the first pedestal body 21. The fastening screw 24 is inserted in one of the through-holes, for example, in a through-hole N1, and is then screwed into the associated threaded hole N so as to fasten the pedestal bodies 1 and 2, integrally with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to ski boots, and particularly to an improvement in a fulcrum shaft that connects both left and right sides of an upper shell to a lower shell.

[Prior Art] Conventionally, ski boots include a shoe body (shell) 1, a lower shell 3 including a sole 2, as shown in FIG.
The upper shell 4 covers the ankle part, and the right and left sides of the upper shell 4 are connected to the lower shell 3 by a fulcrum shaft 5 at a predetermined angle α tilted forward with respect to the vertical line. This angle α is called the anteversion angle, and −
a is set at about 8 to 15 degrees. For the user's comfort and safety, the connecting portion between the lower shell 3 and the upper shell 4 is made to have some flexibility so that the forward inclination angle α can easily change when external force is applied. This connection point is located at a position corresponding to the ankle. This is because the position of the ankle substantially coincides with the axis of rotation when the knee is bent.

By the way, the position of the ankle varies depending on the individual differences of each person, and when measuring the position of the ankle of a person of the same size, the 7th
As shown in the figure, the outer ankle A and the inner ankle B each have a radius of 10 from the average position! It was found that 90% of the subjects were deviated within a range of about ll1l.Also, at -m, the legs are tilted outward, and the angle el with the floor surface is ) is commonly called the cant angle. Therefore, the horizontal inclination angle of the upper shell 4 with respect to the lower shell 3 is adjusted to match the cant angle θl. FIG. 6 shows a conventional example of an interlocking type fulcrum shaft 5 in which the horizontal inclination angle of the upper shell 4 can be adjusted, and a nail shaft 6 attached to the lower shell 3.
A first engaging plate 7 is attached to the nail shaft 6 so as to be prevented from rotating, a second engaging plate 8 is attached to the upper shell 4, a pressing body 9, and a set screw 10.

The nail shaft 6 includes a shaft body 6a and a collar portion 6b.
a female thread 11 into which the set screw 10 is screwed;
is formed. Further, the tip of the shaft body 6a is connected to the first
It constitutes the fitting part 12 of the engagement plate 7, and has an elliptical cross section to form a pair of left and right flat surfaces 12 parallel to the axis.
It has a. The first engagement plate 7 has an elliptical fitting hole 13 in the center that fits into the fitting part 12 of the shaft body 6a, and a sawtooth protrusion 14 is formed on the surface. The protrusion 14 has a triangular cross-sectional shape, extends in the front-rear direction of the ski boot, and is composed of a plurality of protrusions arranged in parallel in the vertical direction. The second engagement plate 8 has the set screw 1 in the center.
0 is inserted into the vertically elongated hole 15, and a serrated protrusion 16 that engages with the protrusion 14 is formed on the surface facing the first engagement W, 7. . The second engaging plate 8 is integrated with the first engaging plate 7 by screwing the setscrew 10 into the female thread 11 of the nail shaft 6 and pressing the pressing body 10 against the second engaging plate 8. combined with
The cant adjustment of the upper shell 4 is performed by loosening the set screw 10 and changing the engagement position of the protrusions 14 and 15.

That is, for example, on the inner fulcrum shaft 5, when the second engagement plate 8 is lowered, the upper shell 4 tilts inward, and on the other hand, when the second engagement plate 8 is raised, the upper shell 4 tilts outward, and this inclination By making the angle substantially coincide with the cant angle e, unreasonable force is prevented from acting on the legs. Further, the second engagement plate 8 of the inner fulcrum shaft 5 may be moved up and down instead of the outer one.

FIG. 9 shows another conventional example in which the cant angle of the upper shell 4 is adjusted by an eccentric fulcrum shaft 16. By attaching a center flange 17 to the upper shell 4 and changing its rotation angle, the cant angle of the upper shell 4 can be adjusted. The mounting angle to the lower shell 3 is changed.

When adjusting the cant angle of the upper shell 4, since the position of the fulcrum axis changes, the inclination angle θ3 of the pivot axis, that is, the line C connecting the outer malleolus A and the inner malleolus B (Figs. 7 and 8) with respect to the horizontal line, is adjusted. Sometimes they change at the same time, sometimes they don't, and it varies depending on the ski shoe. There are some ski boots in which the cant angle e of the upper shell 4 and the angle θ3 change in conjunction with each other, but the cant angle e! is the angle θ
3 (Fig. 8), so simply shifting the upper shell 4 in the front-back direction or the vertical direction with respect to the lower shell 3 will cause the cant angle θ[ and the angle θ3
It may not be possible to correlate with

[Problems to be Solved by the Invention] The conventional fulcrum shaft 5, whether it is the interlocking type shown in Section 6 or the eccentric type shown in FIG. 9, has a lower shell 311.
1! Since the threaded hole 1 is fixed at only one location, if the engaging plate 8 or the eccentric flange 17 on the upper shell 4 side is shifted as described above, the cant angle θI of the upper shell 4 will change and the cant angle θI will change as shown in FIG. Upper shell 4 as shown
There was a problem in that the tilting center 0 of the upper shell 4 was shifted from the center line of the lower shell 3 at the same time. Then, due to this change in cant angle θ1, upper shell 4 and lower shell 3
If misalignment occurs, good comfort and safety cannot be achieved.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and its purpose is to adjust the cant angle and the position of the fulcrum shaft without causing misalignment between the lower shell and the upper shell using a relatively simple structure. To provide ski shoes which can be freely used according to individual differences and which provide good sliding characteristics, comfort and safety.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a pair of left and right fulcrum shafts that connect the left and right sides of the upper shell to the lower shell, and the fulcrum shafts are arranged in vertical and longitudinal positions. A first pedestal formed with a plurality of threaded parts and attached to the lower shell, and a plurality of insertion holes formed in vertical positions and front and back positions in the upper shell, each insertion hole being attached to the upper shell. The second part is attached to correspond to the threaded part.
The first and second pedestals are integrated by being selectively inserted into one of the insertion holes formed in the pedestal and the second pedestal, and screwed into the corresponding threaded portion. It consists of a set screw that connects the

[Function] In this invention, when the set screw is inserted into one of the insertion holes of the second pedestal, it is screwed into the threaded portion of the first pedestal that corresponds to the insertion hole. If you shift the set screws of the fulcrum shafts on both sides by an equal distance in the same direction so that they face each other and screw them into the threaded parts at that position, the set screws themselves will move in parallel in the vertical or front-back direction, but the angle of the fulcrum shafts will change. do not have. Therefore, there is no misalignment between the lower shell and the upper shell, and the cant angle is kept constant.

When the set screws of the inner and outer fulcrum shafts are shifted, the upper shell shifts relative to the lower shell and the cant angle changes.

[Implementation Date] Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is a sectional view of a fulcrum shaft portion showing an embodiment of the ski boot according to the present invention, FIG. 2 is a side view of the ski boot showing the fulcrum shaft disassembled, and FIG. 3 is a front view of the first pedestal. Figure 4 is the second
FIG. In these figures, this embodiment shows a lower shell 3 including a sole 2 of a shoe body (shell) 1.
and the upper shell 4 that covers the ankle part. a cover 23 covering the surface of 22;
Set screw 2 fixing the second pedestal 22 to the first pedestal 21
It is characterized by the fact that it consists of 4.

The first pedestal 21 integrally includes a square plate-shaped pedestal main body 21A and a flange 21B provided on the back surface of the pedestal main body 2LA, and the pedestal main body 2LA has five screw holes (screw holes) B. ,D.
F, N, and U are formed through the hole. Among these screw holes, the screw hole N is formed in the center of the pedestal main body 2LA, and the pressure is equal in the front and back and up and down directions. The remaining four screw holes B, D, F, and U are formed at a distance of about 10 am. Therefore, these screw holes B, D, F, N,
The U's are arranged in a cross shape. And the first pedestal 21
A pedestal attachment formed at a predetermined position of the lower shell 3 is fitted and fixed into the hole 27 from the inside, and the pedestal body 21A is exposed on the front side of the lower shell 3.

The second pedestal 22 integrally includes a square plate-shaped pedestal main body 22A and a flange 22B provided at the rear peripheral edge of the pedestal main body 22A, and a circular recess 27 is formed on the surface of the pedestal main body 22A. A total of five insertion holes B, ,D arranged in a cross shape are provided on the back surface, that is, the surface facing the first pedestal 21.
, +Fl-N, U[ are formed through the first pedestal 21 so as to correspond to the screw holes B, D, F, N, and U, and communicate with the recess 27. And the second pedestal 2
2 is a pedestal mounting formed at a predetermined position of the upper shell 4, which is fitted and fixed into a hole 28 from the outside, and is fixed to the pedestal body 22A.
is brought into contact with the pedestal main body 21A of the first pedestal 21.

The cover 23 is integrally provided on the outer peripheral surface of the open end of the cylindrical portion 23A with one end open and the one cylindrical portion 23A inserted into the recess 27 of the second pedestal 22 with a sufficient free space. An insertion hole 29 for the set screw 24 is formed in the center of the closed end of the cylindrical portion 23A.

The setscrews 24 are inserted into the five insertion holes B, , Dl, F, .
The first pedestal 21 and the second pedestal 22 are integrated by inserting one of N, , and U, for example, into the central insertion hole N1 and screwing into the corresponding screw hole N. join to.

In ski boots equipped with the fulcrum shaft 20 having such a configuration, the set screw 24 is usually inserted into the insertion hole N□ and screwed into the screw hole N, thereby connecting the first pedestal 21 and the second pedestal 21.
The center of the pedestal 22 is integrally joined. In such a situation, if you want to horizontally move the fulcrum shaft 20 to the front of the ski boot due to individual differences in ankle position, for example, insert the setscrews 24 of the fulcrum shafts 20 on both the inner and outer sides into the insertion hole N1 and the threaded hole N1. It is only necessary to remove it from the housing, insert it into the insertion hole F1 located in front of it, and screw it into the screw hole F.

On the other hand, if you want to move it horizontally backwards, screw it into screw hole B, and if you want to move it horizontally upwards, screw it into screw hole U.
If you want to move it horizontally downward, you can screw it into the screw hole. In this case, the setscrews 24 on both the inner and outer sides can be moved vertically and in the front-rear direction, keeping them facing each other. , the upper shell 4 does not shift relative to the lower shell 3, and therefore, even if it is tilted to the left or right as shown in FIG. Figure 8)
can be maintained constant.

Next, if you want to change the cant angle e1, for example, the cant angle θ
1, remove the set screw 24 of the fulcrum shaft 20 on the outer side of the ski boot, tilt the upper shell 4 inward, align the insertion hole with the screw hole N or U,
After that, pass the set screw 24 through the insertion hole D1 and screw it into the screw hole N or U, or remove the set screw 24 of the fulcrum shaft 20 on the inner side of the ski boot and remove the upper shell 4.
is tilted inward, the insertion hole U is aligned with the screw hole N or D, and then the set screw 24 is passed through the insertion hole U and screwed into the screw hole N or D.

Then, the heights of the set screws 24 of the inner and outer fulcrum shafts 20 are different, and the upper shell 4 can be tilted inward. As a result, the cant angle θl also changes. Cant angle θ1
If you want to make the upper shell 4 smaller, contrary to the above
The screw hole into which the set screw 24 is to be inserted can be selected by tilting the screws outward.

In addition, when the set screws 24 are screwed into the screw holes F and B that are shifted in the front and back directions of the inner and outer image fulcrum shafts 20, a line Ll (rotation axis) connecting the set screws 24 of the inner and outer image fulcrum shafts 20 is formed. It can be intersected at an angle other than right angles to the lateral center line of the ski boot. In this case, 25 rotation axes can be obtained by selecting the screw holes of the inner and outer image fulcrum shafts 2o. Therefore, the cant angle e□ and the position and angle of the rotation axis L□ can be widely adjusted independently or simultaneously in accordance with the individual differences of each person.

As a result of the sliding test, it was found that the rotation axis L was not correct due to the boot design.
Although the line C (swivel axis) connecting C and the user's ankle did not match, good results were obtained by adjusting the rotation axis so that they were in a similar (parallel) positional relationship. In addition, for users whose inner malleolus is higher than average, it is recommended that the inner fulcrum axis of the ski boot be made higher or the outer fulcrum axis be lowered. Furthermore, if the fulcrum shaft 20 is shifted from what the user considers to be the optimal position, the user will feel that the ski boot's gliding characteristics have changed. Specifically, if the position is shifted from the optimal position and the knee bends and the end of the knee moves inward with respect to the direction of ski movement, it becomes easier to trigger the ski to rotate. If you go on the outside, you'll feel like the ski is trying to run in a straight line through the turn.

Furthermore, in combinations where the deviations in the skiing direction and the kneeling direction are about the same, the front and rear flex of the ski boot feels stiffer when the fulcrum shaft 20 is located in the front.

In addition, although the above-mentioned example explained the case where the first pedestal 21 and the second pedestal 22 were each provided with five screw holes and five through holes, the present invention is not limited to this, and the number can be changed. Of course, it can be increased or decreased arbitrarily.

Further, although the above embodiment uses the cover 23, this is not necessarily necessary.

[Effects of the Invention] As described above, the ski boot according to the present invention has a plurality of threaded parts formed in the upper and lower positions and front and back positions on the first base constituting the fulcrum shaft, and the above-mentioned threaded parts on the second base. A plurality of insertion holes are formed that correspond to the threaded parts, and a set screw can be inserted into any of the holes to be screwed into the corresponding threaded part, so it can be adjusted according to the user's preference and individual differences. By selecting the threaded part according to the conditions, the cant angle can be adjusted without causing any misalignment of the upper shell, and the fulcrum shaft can also be moved back and forth and up and down without changing the cant angle. This provides good comfort, gliding characteristics, and safety.

[Brief explanation of drawings]

Fig. 1 is a sectional view of essential parts showing an embodiment of the ski boot according to the present invention, Fig. 2 is a side view of the ski boot showing the fulcrum shaft disassembled, and Fig. 3 is a front view of the first pedestal. , Figure 4 is a rear view of the second pedestal, Figure 5 is a diagram for explaining the displacement of the upper shell, Figure 6 is an exploded perspective view showing the fulcrum shaft of a conventional ski boot, and Figure 7 is an illustration of the ankle. Figure 8 is a diagram showing the cant angle, Figure 9 is an exploded perspective view showing another conventional example of the fulcrum shaft, and Figure 10 is a diagram showing the cant angle.
The figure shows the displacement of the upper shell. 1...Shoe body (shell), 3...Lower shell, 4
... Upper shell, 20 ... Fulcrum shaft, 21 ...
First pedestal, 22... Second pedestal, 23... Cover, 24... Set screw, B, D, F, N, U... Screw hole (threaded part), B1, Dl , Fl, N1-(J, ・
...Insertion hole, e! ...Cant angle.

Claims (1)

[Scope of Claims] A pair of left and right fulcrum shafts are provided that connect left and right sides of the upper shell to the lower shell, and the fulcrum shafts are attached to the lower shell by forming a plurality of threaded portions at vertical and front-back positions. a first pedestal, which has a plurality of through holes formed in vertical positions and front and back positions, and is attached to the upper shell so that each through hole corresponds to the screwing part; The first and second pedestals are integrated by being selectively inserted into one of the insertion holes formed in the pedestal and the second pedestal and screwed into the corresponding threaded portion. 1. A ski shoe characterized by comprising a set screw that is coupled to the ski shoe.