JPH09168403A - Sport shoes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically work an edge in curve running with high mobility by making the angle between a link shaft and the flat surface of a shoe bottom changeable, and/or the space to the link shaft from the shoe bottom changeable. SOLUTION: In a ski boot 1, a foot part 4 and a cylinder part 5 are mutually connected through a link shaft 9, the link shaft 9 supports a rotating disc 7 on the upper edge part 11 of a heel part 10 in either the standing state or forward inclined sate of the cylindrical part 5, and is displaced within the slit 8 of the rotating disc 7. Namely, when the cylindrical part 5 is inclined to the foot part 4, the rotating disc 7 is rotated with the rotating center point 9 of the link connecting part. At that time, the rotating disc is moved downward since the rotating center point 9 is eccentrically arranged. The rotating disc 7 is put on the upper edge part 11 of the heel part 10, whereby the rotating center point 9 is raised, a shoe bottom 3 is moved down, and the shoe bottom is inclined at a fixed angle to the vertical central plane by the cylindrical part 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sports shoe having a pivot axis or a tilt axis between a tubular portion forming the outer shell of a shoe and a foot portion.

[0002]

2. Description of the Prior Art Sports shoes, such as ski boots, having a tilt axis or a link axis in the heel area are known. The ski tilt axis for the talus joint is exactly lateral to the sole and virtually parallel to the sole, in other words,
The longitudinal center of the shoe extends at right angles to the vertical plane. This tilt axis thus lies in a plane perpendicular to the longitudinal axis of the ski. The edge operation for the purpose of running control on a curve has been performed by a skier by tilting the entire lower leg and leg toward the inside of the curve. At that time, the lower surface of the ski and the longitudinal axis of the lower leg viewed from the front remain fixed to each other at a predetermined right angle. This right angle relationship between the lower surface of the ski and the lower leg does not change regardless of the flexion posture of the talus joint.

This known 90 ° laterally oriented tilt axis or link joint found in sports shoes, especially ski boots, does not conform to the normal anatomy of the human leg. Because the lower leg of human is 20 ° in a normal body.
It is possible to turn outward in the range of -25 °, and correspondingly, the direction of the thigh joint axis with respect to the longitudinal axis of the foot is 110 ° -115.
This is because the angle is from 70 to 65 °.

When wearing short boots of low height, or not wearing such shoes, this adjustment of the ankle joint axis line when the knee is flexed automatically causes the bottom surface of the foot to tilt and The inner edge sinks and the outer edge rises. In other words, there is an “Aufkanten” state of the foot. The skier applies weight to the inside edge of the ski when traveling on a curve, and the long-distance skier may ski
This is the same as when trying to put a kick (Abstossen) during ating).

Another drawback of the currently used ski boots is their rigidity. Even the ski boots having a tilting axis have a very stiff plastic outer shell so that the skier has optimum support on the ski. Of course, this makes it impossible for the knees and ankles to move freely, thus limiting the possibilities for various changes in so-called free-style running. But young people want more freedom, which is why
Part of the great success of snowboarding can be explained.

In the case of the ski boot known from DO S3636496 and EP-A-356400,
The outer shell and the tubular portion of the boot are connected to each other via a link connecting portion. In that case, the joints are located far in front of the inside of the boots, or both joints of one shoe are
They may be arranged vertically offset from each other. For this reason, the skier assists the operation of the ski and the edge when traveling on a curve in a knee-flexing (hockey) or leaning posture, but at the same time, the skier is no longer longitudinally parallel to the ski, but at an angle. Will be done
This is especially undesirable for long jumps.

[0007]

SUMMARY OF THE INVENTION The invention is therefore based on the object of producing the following sports shoes. That is, it is a sports shoe that has a high degree of freedom of movement and takes into consideration the posture of the thigh joint axis line of the lower leg of the human body, and thereby achieves the effects exemplified below.

[0008]

A sports shoe having the above features constitutes the subject matter of the claims, particularly claim 1. The sports shoe proposed by the present invention includes at least a foot portion and a tubular portion, and these two portions are connected to each other in a link shape, and the link shaft moves relative to a plane formed by the shoe sole. Since it is configured to be possible, the distance between the link shaft and the plane can be changed. In other words, it is possible to set the edge of the shoe sole against the tubular portion, which is not possible with conventional ski boots.

According to the present invention, the link shaft is substantially parallel to the sole in the rest position or the starting position, but when the tube portion is tilted forward toward the shoe tip, it is fixed between the link shaft and the plane of the sole. An angle is created. That is, one pivot center of the link joint, preferably the pivot center of the inner link joint of the shoe, is adapted to move with respect to the plane of the sole. Further preferred embodiments of the invention are described in claims 2-9. The invention provides a construction which is particularly suitable for ski boots, for example long-distance ski boots.

[0010]

The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a side view of a right shoe ski 1 viewed from the inside. This ski boot 1 is composed of two parts, and has a foot portion 4 and a tubular portion 5 which are connected to each other via a turning shaft, that is, a link shaft 9. This link connection allows the skier to run in a hockey or leaning position, especially in curve runs. A heel portion 10 is formed in the rear area of the shoe sole 3, which heel portion 10 is an eccentric body of the tubular portion or a swiveling disc 7.
Has an upper edge portion 11 serving as a support for

The link connecting portion between the tubular portion and the foot portion has a movable turning center point 9. The turning center point 9 is within the slit of the turning disc 7 depending on whether the tubular portion 5 of the shoe is in the upright state or the forward leaning state, and the turning disc 7 is supported by the upper edge portion 11 of the heel portion 10. To displace.

When the tubular portion 5 tilts toward the foot portion 4 in the direction of the arrow, the turning disk 7 fixedly connected to the tubular portion 5 turns about the turning center point 9 of the link connecting portion. At that time, the swivel disc or the eccentric body 7 is moved downward because the swivel center point 9 is eccentrically arranged. FIG.
In the figure, the starting position of the turning disk 7 in that case is shown by a broken line, and the position moved downward by the forward tilting of the tubular portion 5 is shown by a solid line. Turning disc 7
However, the turning center point 9 rises in the direction of the arrow by resting on the upper edge portion 11 of the heel portion 10. As a result, the sole 3 is moved downward, and the sole 5 is tilted by the tubular portion 5 with respect to the vertical center plane. The turning center point 9 can be moved by making the link joint portion of the inner foot portion movably supported in the vertical slit 8 shown by a broken line.

To better understand this process, a rear view of the ski boot of FIGS. 1 and 2 is shown in FIGS. 3 and 4. FIG. 3 is a rear view of the right foot ski boot of FIG. 1, showing a person wearing the boot in an upright posture and in the starting position. In this case, the obvious point is that the pivot center point 9 of the link shaft between the tubular portion 5 and the foot portion 4 moves eccentrically downward in the pivot disc or the eccentric body 7 inside the shoe. It is the point that is arranged. On the other hand, the turning center point 9'of the outer turning disk 7'is exactly centered. When the tubular portion 5 is tilted, the turning disk 7 moves as shown in FIG.
It revolves around an eccentrically arranged revolving center point 9. Due to this downward swiveling of the swivel disc 7, the distance between the swivel center point 9 and the sole 3 is also shown in FIG.
Increase by the distance a. This pressing down of the sole causes the sole 3 to be inclined with respect to the center plane of the tubular part 5 by the angle α shown in FIG. As a result, when running leftward in the hockey position, the bottom 3 of the right foot ski boot automatically tilts by the angle α, and, needless to say, the ski under the bottom also tilts by the angle α. It will be. In the case of a left curve, it is well known that the ski on the left side, that is, the ski on the mountain side (Bergski) is not loaded,
By tilting the right-sided ski by the angle α, it is possible to perform a reliable and simple curve run, and it is not necessary for the skier to incline the lower leg inward. Therefore, even when the skier takes a leaning posture when traveling on a curve, the lower leg can maintain a "vertical posture", that is, a posture in which the lower leg does not lean inward. Nevertheless, the slope of the ski allows a reliable grip on the valley side Talski. In addition, leaning the loaded legs or knees and waist inwardly of the curve, in accordance with current skiing techniques, provides a more secure grip.

Needless to say, the ski on the left side, that is to say the ski on the mountain side, is tilted in the opposite direction by an equal angle, which further solves the problem. This is because, as mentioned above, the inner ski or the mountain ski is not loaded. In addition, due to this inversion of the inner ski in the opposite direction, no grip of the inner ski can occur, and therefore no "edging" (Verkanten).

By the way, what constitution of the ski shoe ultimately causes the sole or the foot as a whole to form a certain angle with respect to the tubular portion during tilting movement of the tubular portion toward the shoe tip. Needless to say, that is not important.
The description of FIGS. 1 to 4 is made by exemplifying how it is possible to turn the shoe sole downward, or “raise” the turning center point 9 of the link shaft on only one side. Is.

In the case of the alternative embodiment shown in FIGS. 5 and 6, the pivot point 9 is not located eccentrically on the inside of the shoe with respect to the pivot disc 7, but rather the tubular portion 5. , Tube 5
Is provided with a cam-like protrusion 13 in the inner ankle area. In the case of this embodiment, the swivel disc or the eccentric body can therefore be dispensed with. In this embodiment, unlike the embodiment of FIGS. 1 to 4, the heel portion 10 is configured in a wedge shape and thus the upper edge 11 is configured to extend at an oblique angle with respect to the sole. ing.

When the skier is in the hockey posture or in the knee-flexing posture, as shown in FIG.
The tubular portion 5 tilts forward in the direction of the arrow. As a result, the cam 13 rolls or moves in the arrow direction along the inclined upper edge portion 11. As a result, the tubular portion is displaced upward, and the turning center point 9 moves from the position A to the position B. However, this movement is performed only in the tubular portion. Because
This is because, in the case of the embodiment shown in FIGS. 5 and 6, the axial bolt is fixedly connected to the bottom of the ski boot. Since the tubular portion 5 is supported by the wedge-shaped heel portion 10 or the upper edge portion 11, it is necessary to provide the tubular portion with the slit-shaped hole 8 for the axial bolt. As a result, when leaning forward, the tubular portion 5 is displaced upward, or the shoe sole is pushed downward. This operation is not carried out on the outside of the shoe, so that the edges of the inner sole and thus of the ski are automatically squeezed.

In order for the proposed construction according to the invention to actually allow the sole or the edge of the foot to be raised, the heel area of the foot is not as high as it is with the present day very stiff ski boots. It has been found that it is preferable to configure the above. On the other hand, the barrel 5 should be designed to be rigid or more rigid so that the skier has sufficient support on the ski.

7 (a), (b), 8 and 9 (a), (b) show another embodiment of a ski boot having a multi-part outer shell according to the present invention. Has been done. Also in the case of this embodiment, the purpose of the illustrated configuration is the same as that of the embodiments described above. An important point in this embodiment is that members are additionally attached to both the inside and the outside of the shoe. The inner member 20 has a lever shape, and the outer member 22 has a bar shape. Lever-shaped member 20
Has a short lever leg, for example via a bolt 19, a foot 4
And the vertical lever leg that extends along the barrel,
For example, it is fixedly coupled to the front outer shell portion 5b of the tubular portion via the tack coupling portion 21.

As can be seen from FIGS. 7 (a) and 7 (b), when the tubular portion is inclined forward, the front tubular outer shell 5b is separated from the shoe sole 3 by the distance a.
In other words, the pivot shaft 9 ″, which is virtually present between the outer shell 5b of the tubular portion and the foot portion 4, has a flat surface 3 of the sole 3 by the distance a.
Be kept away from. Conversely speaking, the shoe sole 3 inside the shoe is separated from the tubular portion 5. This movement is due in particular to the fact that, as shown in FIG. 8, the connecting member 22 is arranged on the outside of the shoe in the shape of a bar rather than a lever. Due to this connecting member 22 arranged between the foot 4 and the tubular portion 5b, the tubular portion can be tilted in the direction of the foot 4 about the pivot axis 9 ', and the shoe sole 3 can be separated. There is no. Therefore, the edge operation process as already described in detail with reference to FIGS. 3 and 4 occurs again. (A) of FIG.
From the heel area to the calf area of the ski boot, there is further arranged a leaf spring-like return spring 23, as already implied in (b) and clearly shown in the cross-sectional view of FIG. 9 (a). ing. This return spring 23 is connected at one end to the foot at the heel area 10 of the foot 4 and at the other end, for example, integrally with the rear shell 5a of the tubular part 5. Especially foot 4
A relatively low configuration may cause problems when the skier regains post-curve position. In other words, the Achilles tendon is overloaded when the body is in a standing position. For this reason, it is preferable to arrange the return spring 23. This return spring 23
Is configured to be pivotable laterally about the longitudinal axis of the shoe at least partly about the pivot axis, whereby the return spring 23 also performs a pivoting movement during lateral pivoting of the sole caused by the invention. Is being done.

Further, as can be seen from FIG. 9 (a), longitudinally elongated members 20, 22 on both sides are preferably fixed chassis 1 via pivots 19 to 9 ', respectively.
It is connected to 2. The chassis 12 is attached to the foot portion 4 and has high strength. High strength is important, especially in this area of the foot, where a great deal of force is exerted by the skier, especially when he is in the hockey position. The action of this force results from the movement of the virtual pivot axis 9 "in the inner area of the shoe or from the displacement of the ski by the sole 3 and the sole connected to the sole.

FIG. 9B shows the individual members of this structure,
That is, the chassis 12 and the vertically elongated lever-shaped member 20 and bar-shaped member 22 on both sides are shown in a disassembled state.

7 (a) and 7 (b) and FIG. 9 (a),
In the case of the embodiment shown in (b), the important point is that each member of the structure according to the present invention has high strength,
For this reason, each member is preferably made of fiber-reinforced plastic such as composite material or metal. For example,
It is conceivable that this structure is made of carbon fiber reinforced epoxy resin. However, it goes without saying that other suitable materials can also be used. High strength is important, in particular the rear return spring 23 requires high breaking strength. This is because at low temperatures, materials that are too brittle may inevitably cause unwanted fracture. For the return spring 23, a rubber band or spring tension can also be used instead of the leaf spring. The important point is that when the skier gets up,
It is to apply the force that causes backwards.

It is needless to say that the above-mentioned embodiment should be supplemented with a supplementary meaning at the end.
In (a) and (b), only the members that are important in terms of the configuration are shown, and various members known per se of the ski boot are omitted for clarity. Therefore, FIG.
9 (b), members for connecting the cylindrical outer shells 5a, 5b, such as wire members, clasps and the like, which are commonly used in ski shoes at present, are not shown. Also not shown is the "soft" inner member which is essential for ensuring a comfortable support of the ski boot with the outer shell.

10 (a) and 10 (b) show a principle diagram of a possible human leg posture. 10A shows a normal posture, and FIG. 10B shows a so-called “O leg” posture. Needless to say, there are other postures, but the point that these two principle diagrams will make clear is that even if the skier is not in the hockey posture, it is already possible to compensate for these different leg postures by the appropriate construction of the shoe. The point is that you can. This compensation is especially shown in FIG.
This is made possible by the ski shoes shown in (b), FIG. 12 (a), and (b). 11 (a) and 11 (b) show the foot portion 4 pivotally interconnected and the rear portion of the tubular portion 5. A longitudinal hole 25 having a rack 27 formed on one side is provided inside the foot portion 4. Corresponding to this rack, a gear 29 having teeth 31 on at least one side is arranged inside the shoe of the tubular portion 5 in FIG. 11 (b). The gear 29 is fixedly connected to the tubular portion 5.
As can be seen from FIG. 11 (b), the teeth 31 are adapted to mesh with the teeth or the rack.

The mode of operation of this structure will be described with reference to FIGS. 12 (a) and 12 (b). Disc-shaped gear 29 with teeth 31, as clearly shown in FIG.
Are configured to project inwardly from the shell-shaped tubular portion 5. This inward protrusion is therefore the gear 29
Is the vertically long hole 25 or the foot portion 4 formed in the hole 25.
It is necessary to mesh with the gear 27 of the. The starting position is
Depending on the posture of the leg, it is selected by correspondingly positioning the gear 29 in the hole 25 between the tubular part 5 and the foot part 4.
This allows the skier to stand upright on the ski without any tilting of the legs. As schematically illustrated in FIG. 12 (a), when the skier enters the hockey position, the gear or disk 29 moves "up" along the tooth 27 by a pivoting motion. This causes the pivot point 9 to be separated from the sole 3 by a distance a in the inner shoe area. Conversely, the sole 3 and the ski fixed to the shoe are pushed down from the turning center point 9 by the distance a. This, as already mentioned,
The edge of the ski can be marked, and perfect curve running is possible.

Due to the construction of the ski boot with shell shown in FIGS. 11 (a) -12 (b), the skier is already able to optimally adapt the shoe to his leg posture when purchasing the ski boot. It will be possible.

The ski boot embodiments shown in FIGS. 1-12 are, of course, merely illustrative. These examples can be modified in many arbitrary forms. Thus, for example, the material used to construct the ski boot may be any material that is appropriately selected. It is fully conceivable to use leather, reinforced rubber or the like in place of the commonly used plastic at present. The link coupling portion shown in FIGS. 1 to 9 can have various mechanical constructions and can be made of metal. In that case, likewise,
At least in part it may be instructed to use metal for the sole. Finally, the mobility between the barrel and the foot is in principle also unimportant. The important point is that the inside of the tube is movable with respect to the sole when the tube is tilted toward the foot.
In other words, the shoe sole is separated from the tubular part,
That is, it is possible to automatically increase the edge as the knee and the foot move.

[Brief description of the drawings]

FIG. 1 is a side view of a ski shoe (right foot) according to the present invention seen from the inside in a starting position, that is, in a state where a skier wearing the ski shoe is in an upright posture.

FIG. 2 is a side view showing a state where the ski shoe of FIG. 1 is in an inclined position, that is, a state of the ski shoe when the skier is in a hooked posture.

FIG. 3 is a rear view of the ski boot in the state shown in FIG.

FIG. 4 is a rear view of the ski boot in the state shown in FIG. 2, showing a state in which the inner sole is pushed down diagonally.

FIG. 5 is a side view of another embodiment of the ski shoe (right foot) according to the present invention, seen from the inside, in the starting position, that is, with the skier in an upright position.

6 is a side view showing a state where the ski shoe of FIG. 5 is in an inclined position, that is, a state of the ski shoe when the skier is in a hooked posture.

FIG. 7 (a) is a side view of another embodiment of the ski shoe (right foot) according to the present invention seen from the inside in a starting position, that is, in a state where the skier is in an upright posture, and FIG. It is the side view which showed the state of the ski shoe in case the skier is in a hooked position.

8 is a side view of the ski boot of FIG. 7 viewed from the outside.

9A is a view showing a cross section of the cylindrical portion of the ski boot of FIGS. 7 and 8 and a return spring in a heel area, and FIG. 9B is a lever-like member, a bar member, and a chassis on both side surfaces. It is a perspective view.

10A is a schematic diagram showing a possible human leg posture (O leg), and FIG. 10B is a schematic diagram showing a normal human leg posture.

FIG. 11 (a) is a side view of another embodiment of the tubular portion of the ski boot according to the present invention seen from the inside at the starting position, and FIG. 11 (b) is a side view showing the engagement between the gear and the rack. .

FIG. 12 (a) is a side view showing the tubular portion of FIG. 11 (b) at a position when the skier is in the hockey posture, and FIG. 12 (b) is a perspective view showing a gear in the tubular portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ski boots 3 Sole 4 Foot 5 Cylindrical 5a, 5b Shell 7 Swing disc 8 Vertical slit 9 Swing center point 10 Heel 11 Upper edge 12 Chassis 13 Cam 19 Bolt 20 Lever-like member 22 Bar-like member 23 Return spring 24 swivel axis 27 rack 29 gear 31 tooth

Claims (12)

[Claims] 1. A sports shoe, comprising at least a foot portion (4) and a tubular portion (5) which are connected to each other through a link connecting portion (9, 9 '), the link shaft A sports shoe, characterized in that the angle between the shoe sole and the plane of the shoe sole (3) can be changed, and / or the distance of the link shaft from the shoe sole (3) can be changed. 2. A sports shoe according to claim 1, characterized in that one of the pivot points (9) of the link connection is movable relative to the plane of the sole (3).
Sports shoes. 3. The sports shoe according to claim 1, wherein the turning center point (9) of the inner link joint is
Sports shoes, which are movable relative to the plane of the sole (3). 4. The sports shoe according to any one of claims 1 to 3, wherein the inner link connecting portion has the center of rotation (9) at the sole when the tubular portion is inclined toward the tip direction of the shoe. Means to move away from (7, 11, 1
3) A sports shoe characterized by having. 5. The sports shoe according to any one of claims 1 to 4, wherein a gear-shaped link coupling portion (27, 29, 31) is provided between the tubular portion (5) and the foot portion (4). ) Is provided so that the gear-like member (29, 31) located in the tube or foot is located at or near the center of rotation (9) of the shoe. ,
This member meshes with the corresponding rack (27) in the foot or the cylinder, so that when the cylinder is tilted in the shoe tip direction, the turning center point (9) moves away from the sole (3). Sports shoes that can be moved to. 6. Sport shoe according to claim 1, characterized in that the link connection has an eccentrically pivoted pivot point (9). 7. The sports shoe according to any one of claims 1 to 4, wherein at least one portion provided on the tubular portion (5) and / or the foot portion (4) of the shoe has a tip end direction of the shoe. When the cylinder portion is tilted to the side, the foot or the corresponding portion of the cylinder portion is struck and the pivot center point (9) of the link coupling portion is moved away from the plane of the sole (3), or the plane plane of the sole is pivot point. Sports shoes characterized by keeping away from them. 8. The sports shoe according to any one of claims 1 to 7, wherein the foot portion (4) and the tubular portion (5) are mutually disposed inside the shoe via a lever-shaped member (20). And the lever-like member (20) is
One lever leg is rotatably connected to the foot, and the other lever leg is fixedly connected to at least a part of the cylinder, whereby the cylinder (5) is connected to the foot (4). A sports shoe, characterized in that, when tilted in the direction, the virtual turning center point (9 ″) between the foot portion and the tubular portion is moved in a direction away from the plane of the sole (3). 9. The sports shoe according to any one of claims 1 to 8, wherein a thin plate spring-like return member (23) acts inside or outside the tubular portion (5). The return element is connected to the foot (4) in the heel area and is also the pivot point (19) between the tube and the foot.
Acting on the tubular portion so as to pivot the tubular portion in a direction away from the shoe tip, and in addition, the return member (29)
Characterized in that it is pivotably connected to the foot (4) laterally of the shoe about at least a limited angle about another pivot (24) located in the heel area. Yes, sports shoes. 10. The sports shoe according to any one of claims 1 to 9, wherein the tubular portion (5) is composed of at least two parts and is at least partially tiltable toward the shoe tip. It has a shell (5b) and preferably a rear outer shell (5a) which can be at least partially tilted rearward, and both tube parts have a clasp, a cord, etc. when the shoe is used. Sports shoes, characterized in that they are tied together via a stop member of the. 11. The sports shoe according to claim 1, wherein the sports shoe is a ski shoe. 12. The sports shoe according to claim 1, wherein the sports shoe is a long-distance ski shoe.