JP3471689B2 - Heel safety restraint for ski boots - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heel safety restraint device for a ski shoe, which is used for restraining a heel portion of a ski shoe mainly used for a tour ski on a ski so as not to move vertically and horizontally.

[0002]

2. Description of the Related Art In tour skis such as telemark skis and cross-country skis, only the toes of the ski shoes are fixed on the ski, and the heels of the skis can be moved up and down with the toes as fulcrums. Or, walk / slide in a state where slight left / right movement is possible in addition to vertical movement. In such a tour ski, a so-called 3-pin holder is used as a holder for attaching the toes of the ski shoe to the ski.
The two main types are binding and cable binding, and there is also a 3-pin cable binding that combines both types.

[0003]

Conventionally, particularly in Japan, mainly alpine skis (downhill skis) have been proposed.
Is widely used, and the level of popularity of tour skis is far lower than that of alpine skis. Alpine skiing is a style of skiing in which the toes from the toes to the heels of ski shoes are kept on the skis while skiing.
Alpine skiing and tour skiing differ greatly in their skiing methods, for example, how to apply weight to a ski and how to take the posture of the lower half of the body during a turn. Therefore, if a skier who is accustomed to the skiing method of Alpine skiing starts to ski for a tour, he or she may feel a great deal of inconvenience until he gets used to the skiing method peculiar to a tour ski. The possibility of will increase.

Therefore, as a supplementary means for safe sliding, a skier who is accustomed to alpine skiing should be able to move up and down on the skis as an auxiliary means for safe sliding until he or she becomes familiar with the skiing method for tours. A heel safety restraint that can be restrained is required.

[0005] Further, even for skiers who are familiar with the skiing method for tour skis, it may be more convenient to temporarily restrain the heel portion so as not to separate from the ski depending on the terrain conditions on which the skiing is performed.

The present invention has been made in view of the above circumstances, and the heel portion is mounted on the ski so that the heel portion moves up and down or left and right with the tip of the toe as a fulcrum. An object of the present invention is to provide a simple heel safety restraint device for ski shoes, which can restrain vertical movement and lateral movement of the ski. In addition, the present invention provides a highly versatile heel safety restraint for a ski boot that can be easily used regardless of the type of the ski boot or the holder for attaching the toe of the ski boot to a ski. With the goal.

[0007]

In order to solve the above-mentioned problems, the structure of a heel safety restraint device for a ski shoe according to the present invention is such that a toe portion is attached on a ski and the toe portion is used as a fulcrum to move the heel portion up and down. A heel safety restraint for restraining a ski shoe movably or laterally held on a ski plate so that the heel portion does not move up and down and left and right, and skis are provided behind the heel portion of the ski shoe. It consists of a fixed piece fixed to the plate and a strip whose length can be adjusted.Hook-shaped hooking claws are provided on either one of the two ends of the strip or the fixed piece, and the other is attached to the hook. A hook ring that can be hooked on the claw is provided, and both ends of the band that is laid from the instep of the ski shoe to the left and right sides of the heel are hooked on the fixing pieces to reduce the length of the band. As a result, the heel of the ski shoe is constrained to the fixed piece side, and the retaining ring is It has a cut in part, to the strip to a fixed piece
It is characterized in that the latch ring is formed so as to be plastically or elastically deformed to open the cut end and to be separated from the latch claw when a tensile force of a certain amount or more is applied in the latched state.

That is, according to the present invention, one strip whose length is adjustable is laid over both sides of the heel from the instep of the ski boot,
By locking both ends of the heel piece to the fixing piece, the heel portion of the ski boot is pulled toward the fixing piece side and restrained so as not to float up. The heel of the ski boot can be restrained or released simply by hanging one strip on the fixing piece fixed to the ski, so the structure is simple, the weight can be reduced, and the handling is easy. There is almost no risk of failure.
Further, it can be used regardless of the type and size of the ski shoe, and the type of the holder for holding the toe of the ski shoe and the type of the ski are not limited. Furthermore, even if the ski boot is covered with a cold / waterproof shoe cover (gaiter) or the like, it can be used as it is.

One of the latching claw and the latching ring which can be latched with each other is provided on the fixed piece, and the other is provided on both ends of the strip. For example, when a hook is provided on the fixing piece and a hook ring is provided on the band, the hook is formed at one place, and the hook rings provided at both ends of the band are collectively put together. Latching is performed, or a pair of latching claws are formed on the left and right, and the respective latching rings are individually latched on the respective latching claws. On the contrary, when the retaining ring is provided on the fixed piece and the retaining claw is provided on the band,
It is possible to form the retaining ring at one location or at two locations on the right and left sides, and to retain the retaining claws provided at both ends of the strip together on the retaining ring or separately on the right and left sides.

The belt is provided with a length adjusting means, and the both ends of the belt are hooked on the fixing pieces and tightened according to the size of the ski boot so that the ski boot is held so as not to wobble. can do. As the length adjusting means, for example, the strip may be divided into appropriate lengths, and the divided strips may be connected by a buckle used for general belts. Alternatively, one end piece may be folded back and overlapped without dividing the strip, and the overlapped portion may be fastened with a fastener. Known types of buckles and fasteners include those that frictionally engage the strips with each other, wedge-shaped claws and rollers that hold the strips in place, and those that use snaps or springs to pinch. Can be used.

Further, when an excessive force for separating the ski boot and the ski from each other is generated due to an unreasonable posture during skiing or falling, a momentary strong force is exerted between the latch claw and the latch ring. Although a pulling force acts, when the pulling force exceeds a certain limit, the latching ring can be safely separated from the latching claw, so that the following releasing function is added.

In the heel safety restraint for ski boots according to the first aspect of the present invention, the retaining ring is provided with a cut. The term "cut" as used in the present invention refers to a portion in a state where both ends of the annular member are butted but not joined when a wire rod, an elongated plate member or the like is bent. That is, the retaining ring in the present invention is formed as an open ring with a cut end, not a complete closed ring without a cut end. And
When the tensile force exceeds a certain limit, the retaining ring is deformed to open the cut end and separate from the retaining claw. The deformation when the cut of the retaining ring is opened may be plastic deformation or elastic deformation. The material and shape of the member forming the retaining ring are selected so that the strength of the force for causing this deformation falls within a kinematically appropriate range.

Further, in the heel safety restraint device of the ski boot according to the invention of claim 2, when a tension force of a certain level or more is applied in a state in which the band member is hooked on the fixing piece, the hooking pawl and the hooking hook are held. At least one of the rings is broken so that the latch claw and the latch ring are separated from each other. Also in this case,
It is possible to appropriately select the material and the shape of the member forming the latch claw and the latch ring to adjust the strength for detachment.

With these, even a beginner can safely slide. Further, the structure of the heel safety restraint device for a ski shoe of the present invention is characterized in that a plurality of the retaining rings are set as one set and are attached to both ends or a fixing piece of the band. That is, according to the present invention, a plurality of retaining rings having the above-described cutouts are set as one set, and the number of retaining rings to be retained by the opposing retaining claws can be arbitrarily selected. Therefore, for example, when two locking rings are made into one set, the locking ring is separated from the locking claw depending on whether only one of them is locked by the locking claw or both of them are locked. It is possible to change the magnitude of the pulling force for causing it. As a result, the set level of the release function as the safety device can be adjusted in stages according to the skill and physical strength of the skier.

Further, by setting the plurality of retaining rings in a set having different strengths, it becomes possible to more finely and appropriately adjust the set level of the release function.

Further, a further structure of the heel safety restraint device for a ski shoe according to the present invention is such that, when the band is spanned from the instep portion of the ski shoe to the left and right sides of the heel portion, the ski shoe is pushed from the instep portion to the toe portion. It is characterized by having a wide portion having a cover shape that can be covered over.

According to the present invention, a band is added with a function as a shoe cover. That is, when a wide part is provided near the central part of the band and the band is laid over the ski shoes,
The wide part is formed so as to cover the ski boot from the upper part of the ski boot to the toe part. The wide portion is preferably formed of, for example, soft resin, water-resistant synthetic fiber, synthetic leather, or the like so as to follow the shape of the ski shoe. This makes it possible to protect the ski shoes from snow and water, and to keep the feet warm.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a heel safety restraint 1 for a ski shoe according to the present invention. The ski shoe 4 has a toe portion 41.
Is fitted into a toe holding metal fitting 6 fixed to the ski 5 with a screw, and the toe side belt 7 is laid over the upper surface of the toe portion 41, and the heel portion 42 is laid along the circumference of the shoe sole to the toe side. It is held in a state of being fastened to the toe side by the heel side belt 8. The heel side belt 8 is formed by connecting a plurality of leather strips 81, 82, 83, 84 via fastening pin type locks 85, 86, Elephsen lock 87, etc. The total length can be adjusted accordingly. Both ends of the heel side belt 8 are rotatably connected to the left and right sides of the toe holder 6 by connecting pins 61. As a result, the heel part 42 of the ski shoe 4 is
It is held so that it can move up and down within a certain range with 1 as a fulcrum.

The holder for the toe portion 41 of the ski shoe 4 described above is merely an example, and the type of the holder is not particularly limited to the above-mentioned form. The heel safety restraint device 1 for a ski shoe of the present invention is used for a ski shoe 4 mounted such that it can be slightly moved sideways in addition to movement.

A heel safety restraint 1 for a ski shoe according to the present invention comprises a fixing piece 2 fixed to the upper surface of a ski 5, and a fixing piece 2 thereof.
It is composed of a strip 3 which can be attached to and detached from.

The fixing piece 2 is a component made of, for example, a metal plate such as a stainless steel plate or a hard resin, and has a substantially semicircular base portion 21 and a pair of protruding portions protruding from two edge portions of the base portion 21. Each of the protrusions is folded back above the substrate to form a hook-shaped hook 22. The base 21 is
It is arranged at a position slightly rearward from the heel portion 42 of the ski shoe 4, and is screwed onto the ski 5 in a posture in which the folded tip of the hook 22 is directed rearward of the ski 5.

On the other hand, the strip 3 has a long portion 31 and a short portion 32.
Two long and short leather strips consisting of and are connected via a metal buckle 33 so that the length can be adjusted. The buckle 33 is a combination of the wedge teeth 34 and the idle ring 35, and the wedge teeth 3 are formed on one surface of the long portion 31 inserted in the idle ring 35.
The long-sized portion 31 is fixed at an arbitrary position by the frictional resistance of 4. Also, the long part 3
The total length can be shortened by pulling 1 away from the wedge teeth 34 and pulled outward, and the total length can be extended by loosening it.

Both ends of the strip 3, that is, one end of each of the long portion 31 and the short portion 32 are folded back and crimped, and two hook rings 36 are attached to each of the annular ends. ing. The retaining ring 36 is formed by bending a hard steel wire or the like, and as shown in FIG. 2, the retaining ring 36 is bent so that the tip side is substantially circular and the strip side is substantially trapezoidal. In the vicinity of the center on the tip side, a cut 37 is formed in which the ends of the hard steel wire rod are butted against each other.

As shown in FIG. 1, the band 3 is spanned from the upper part 43 of the ski boot 4 to the left and right sides of the heel part 42, and the hook rings 36 at both ends are hooked on each of the fixing pieces 2. Claw 2
It can be attached by hanging on 2. And the buckle 33
By tightening the length of the band 3 via the, the ski boot 4 is attracted rearward, and the heel portion 42 is restrained so as not to float above the ski 5. In this way, even while you are skiing for a tour, temporarily or as an aid,
You will be able to do alpine-style skiing.

In addition, when the ski safety heel restraint 1 of the ski shoe is used for sliding, an excessive force is generated to separate the ski shoe 4 and the ski 5 due to an unnatural posture. In addition, the pulling force of a certain amount or more momentarily acting between the latching pawl 22 and the latching ring 36 causes the latching ring 36 to plastically or elastically deform while opening the cut 37, and the latching pawl 22
Leave from. As described above, the heel safety restraint device 1 for a ski shoe according to the present invention also has a releasing function as a safety device.

To engage the retaining ring 36 with the retaining claw 22, as shown in FIG. 3, only one of the two retaining rings 36 provided at both ends of the strip 3 is used. The hook 2
It can be hooked on 2, or both can be hooked and can be selected for each end of the strip 3. If the two retaining rings 36 are latched together, the cut 37 can be opened to increase the strength of the pulling force when the retaining ring 36 separates from the retaining claw 22. Since it is possible to weaken it only by locking it, the release function as a safety device can be adjusted stepwise.

Further, as shown in FIG. 4, the strip 3 extending from the instep portion 43 of the ski shoe 4 to both the left and right sides of the heel portion 42 is further crossed on the rear side of the heel portion 42, so that the left and right sides are crossed. The fixing pieces 2 on the opposite side can be hooked respectively. In such a state of use, the heel portion 42 of the ski shoe 4 is held more securely than in the state of use shown in FIG. 3, the wobble of the ski shoe 4 in the left-right direction is further reduced, and the latch ring The pulling force for separating 36 from the hook 22 is also slightly increased.

Therefore, in this embodiment, the hooks 22 are provided at two positions on the right and left sides of the fixed piece 2 so that the band 3 can be selected (two ways). Providing two locking rings 36 at each end so that the number of the locking rings 36 to be locked by the locking claws 22 can be selected (2 at each end = total 4). And heel 42
It is possible to select the binding force and the setting level of the release function from a total of eight patterns. As a result, it can be widely used regardless of the skier's level of skill in gliding and individual differences.

Further, the heel safety restraint device 1 for ski boots according to the present invention.
Can also be implemented in the following forms.

The fixing piece 2 may be a member formed by bending a hard metal wire or the like and forming the hook 22 on a part thereof, instead of the plate-like member as described above. The shape of the latch claw 22 can be an appropriate hook shape or a similar shape as long as the latch ring 36 can be easily detached. The number of the latching pawls 22 may be only one, or three or more. By increasing the number of the latching pawls 22, it is possible to increase the selection state of the restraint state of the heel portion 42 and the release function as the safety device. You can When a plurality of latching claws 22 are provided, the fixing piece 2 may be a plurality of members divided for each latching claw 22 instead of the integral member as described above. The fixing piece can be fixed not only on the surface of the ski, but also on the side edge of the ski.

The strip 3 has appropriate flexibility and water resistance.
A belt-shaped member made of synthetic fiber, synthetic resin or the like may be used as long as it has weather resistance. The length adjusting means of the strip 3 is, for example, a buckle for sandwiching and fixing the strip between the roller-shaped member and the free ring, instead of the buckle 33 as described above, or folding one end piece of the strip 3. Well-known mechanisms such as fasteners that are fastened by overlapping, friction, or using snaps can be used. However, it is preferable that the mechanism be simple and easy to handle so that it can be operated even while wearing gloves on snow. Further, when a buckle, a binding, or the like is provided in the middle portion of the band 3, the position of the buckle should be set not on the front surface of the instep part 43 but on the heel part so that the buckle does not press the ski shoe 4 more than necessary. It is preferable to be near the side of 42.

The shape of the retaining ring 36 is changed to the above-mentioned form, and the retaining claws 2 such as an annular shape or a so-called D-ring shape are used.
It is also possible to make it into another shape that is easy to hang on and off. The position of the cut 37 formed on the retaining ring 36 is not limited to the vicinity of the center on the distal end side, and a position that facilitates proper detachment can be selected depending on the state of engagement with the retaining claw 22. Also, for example, in FIG.
As shown in FIG. 7, the latch ring 36 having a substantially 8-shaped shape intersects at the central portion.
Can also be With such a shape, the elasticity of the retaining ring 36 is improved, and a constant tension force is applied.
Even after being detached from the hook claw 22, it is suitable for repeated use.

When a plurality of retaining rings 36 are provided as a set, the material and thickness of the retaining ring 36 and the cut 37 are provided.
It is also possible to change the position and interval of each hook ring 36 for each retaining ring 36 so that the respective strengths are different. As a result, the setting level of the release function can be selected more finely and appropriately from various combination patterns.

Further, as the positions where the hooking pawl 22 and the hooking ring 36 are provided, the hooking pawls 22 may be provided at both ends of the strip 3 and the hooking ring 36 may be provided on the fixed piece 2 side. . Even in this case, one or a plurality of attachment portions of the retaining ring 36 are provided on the fixed piece 2 side, and one or a plurality of retaining rings 36 are attached to each attachment portion, so that the band 3 is bridged. Alternatively, the restraining force of the heel portion 42 or the heel portion 42 can be selected from a plurality of patterns.

6 and 7 show an embodiment in which the band 3 is provided with a function as a shoe cover. The band body 3 is provided with a wide portion 38 formed near the central portion thereof along the toe portion 41 to the instep portion 43 of the ski shoe 4 (see FIG. 1). By covering the front half of the ski shoe 4 with the wide portion 38, it is possible to protect the ski shoe 4 from snow and water and to keep the feet warm. This wide portion 38 is
For example, it can be formed of soft resin, water-resistant synthetic fiber, synthetic leather, or the like.

In the strip 3 shown in FIG. 6, the wide portion 38 made of a resin molded product is formed separately from the strip 391 and joined to each other. The wide portion 38 is opened at its bottom surface so that it can cover only the upper surface of the ski shoe. On the other hand, the strip 3 shown in FIG. 7 is formed by extending strips 392 at both edges of the wide portion 38 made of a resin molded product. The wide portion 38 is formed around the opened bottom surface.
An edge portion 381 that covers the periphery of the sole of the ski shoe 4 is formed. The band 3 having such a wide portion 38 can be attached to and detached from the ski shoe 4 with the toe portion 41 of the ski shoe 4 attached to the toe holding metal fitting 6 on the ski 5.

[0038]

According to the present invention, the heel portion of the ski boot can be easily restrained or released on the ski by simply hanging one strip on the ski boot and hanging it on the fixing piece. can do. Therefore, the skier can comfortably perform telemark skiing, cross-country skiing, or alpine-style skiing in accordance with his / her skiing technique, terrain conditions, and the like.

The fixing piece can be attached to any type of ski. Further, since the band also includes the length adjusting means, it can be used universally regardless of the type and size of the ski boot, and regardless of the type of the holder for holding the toe of the ski boot. it can. The means for engaging and disengaging the band and the fixing piece is composed of a retaining claw provided on one side and a retaining ring provided on the other side, and the well known buckle or fastener is used for the means for adjusting the length of the band. Therefore, the structure is simple, the weight can be easily reduced, and it is economical. Due to the simple structure, there is almost no risk of malfunction due to snow or adhered snow. When not in use, it is possible to reduce the weight burden on the feet by removing the band and carrying it, so it is suitable as a ski tool for tours.

Further, a structure is adopted in which a cut portion is formed in a part of the retaining ring so that the retaining ring is separated from the retaining claw by a tensile force of a certain level or any one of the retaining claw and the retaining ring. Due to the structure that breaks, a release function is added as a safety device in case of emergency.

Further, if a plurality of latch rings are set as one set and the number of the latch rings to be latched by the other latch pawl is selectable, the setting level of the release function as a safety device can be set by the skier to slide. It can be finely adjusted according to the technology and individual differences.

[Brief description of drawings]

FIG. 1 is a perspective view showing a heel safety restraint device of a ski boot according to an embodiment of the present invention and a method of using the same.

FIG. 2 is a plan view of a retaining ring provided at one end of a band of the heel safety restraint device of the ski shoe.

FIG. 3 is a rear view showing an example of a usage state of the heel safety restraint device of the ski shoe.

FIG. 4 is a rear view showing another example of a usage state of the heel safety restraint device of the ski shoe.

FIG. 5 is a plan view showing another embodiment of the retaining ring.

FIG. 6 is a diagram showing an embodiment in which a function of a shoe cover is added to a band.

FIG. 7 is a diagram showing another embodiment in which the function of a shoe cover is added to the band.

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Claims (5)

(57) [Claims] 1. A ski boot having a toe portion attached to a ski, and the heel portion being vertically movable or horizontally movable around the toe portion as a fulcrum so that the heel portion does not move vertically or horizontally. A safety heel restraint for restraining the ski on the ski, comprising a fixing piece fixed to the ski at the rear of the heel of the ski shoe, and a strip whose length can be adjusted. Also, one of the fixing pieces is provided with a hook-shaped hooking claw, and the other is provided with a hooking ring capable of being hooked on the hooking claw, so that the left and right heels of the ski boot can be The heels of the ski boots are constrained to the fixed piece side by hooking both ends of the band which is laid on both sides to the fixing piece to tighten the length of the band, and the retaining ring is has a cut in part, upon receiving a certain level of tension in the state it was hooked to the strip to a fixed piece <br/> Opens cut locking ring is plastically deformed or elastically deformed, heel safety restraints of the boot, characterized in that it is formed so as to leave the locking pawl. 2. A ski shoe having a toe portion attached to a ski, and the heel portion being vertically movable or horizontally movable around the toe portion as a fulcrum so that the heel portion does not move vertically or horizontally. A safety heel restraint for restraining the ski on the ski, comprising a fixing piece fixed to the ski at the rear of the heel of the ski shoe, and a strip whose length can be adjusted. Also, one of the fixing pieces is provided with a hook-shaped hooking claw, and the other is provided with a hooking ring capable of being hooked on the hooking claw, so that the left and right heels of the ski boot can be By tightening both ends of the band that spans both sides to the fixing pieces to tighten the length of the band, the heel of the ski boot is constrained to the side of the fixing piece and the band is fixed. When receiving a tensile force above a certain level in a state where it is hooked on one side, at least one of the hook claw and the hook ring A heel safety restraint device for ski shoes, characterized in that either one of them is broken so that the latch claw and the latch ring are separated from each other. 3. The heel safety restraint of a ski boot according to claim 1, wherein a plurality of retaining rings are attached to each end of the strip or a fixed piece in a set. Ingredient 4. The heel safety restraint device for ski boots according to claim 3, wherein the plurality of retaining rings in a set have different strengths. 5. The band has a cover-like wide portion capable of covering the ski boot from the upper portion to the toe portion when it is laid across from the upper portion of the ski shoe to the left and right sides of the heel portion. A heel safety restraint device for ski boots according to claim 1.