WO2002038232A1

WO2002038232A1 - Clap type skate

Info

Publication number: WO2002038232A1
Application number: PCT/JP2000/007843
Authority: WO
Inventors: Noriji Miyabe; Yukinori Miyabe
Original assignee: Environmental Technology Licensing Ltd.
Priority date: 2000-11-08
Filing date: 2000-11-08
Publication date: 2002-05-16
Also published as: AU2001213021A1

Abstract

A clap type skate capable of reducing the weight of a blade holder and improving the shape of a blade which are required for the blade holder to rotate about a rotating shaft at the tip of the skate to allow a high-speed skating, capable of manufacturing the skate with the same mold frame, and allowing the holder and blade to be adjusted easily so as to provide the skate to skaters with different physical strength and foot sizes at a low cost in order to spread skating, wherein the blade holder (1) of the clap type skate is formed in two or more similar shapes including cylindrical and/or box shapes with different non-concentric diameters of R1 < R2 < ... < Rn (R1, R2, R3, ..., Rn are diameters of holders) so that the diameter is increased gradually from the tip part to a base in a skating direction, a blade (8) forming minimum width parts (33, 36) vertically and longitudinally is installed detachably on the blade holder (1), a plate slender in a skating direction is installed on the bottom of a shoe, and an elongated hole is provided in an intermediate metal and/or the intermediate metal is divided.

Description

Specification

Clap-type scale Technical field

The present invention has been completely improved to clap-type skewed shoes, intermediate hardware to be attached to shoes, blade holders, blades, etc., which have been developed for a long time, but have recently been used for top scales. The present invention relates to a clap-type schedule that can safely operate at a higher speed. Background art

As a conventional blade holder for speed skew, there is a blade holder in which a pair of plate-like members is fixed to a metal pipe-shaped bottom portion at a predetermined interval. Then, a blade is attached between the plate-like members.

In recent years, there are plastics (carbon fiber, FRP, etc.) that are lighter and more durable than metals, but many have integrated blades during molding.

In addition, in the conventional blade, the width from the top to the bottom (ice-contact part) is constant, and the width of the ice-contact part is constant from the front end to the rear end. Some of the figurine grounds have the maximum thickness between the leading and trailing ends of the icing surface of the blade to facilitate rotation, but this is completely different from the shape of the present invention.

For this reason, the blade is unlikely to be bent in the clockwise direction opposite to the curvature of the carp with respect to the traveling direction, is not easily elastically deformed left and right in the vertical direction, and swells outward particularly when cornering at high speed. Had trouble.

The inventor of the present invention has made the width of the lowermost part of the blade smaller than the width of the uppermost part, the width of the rear end of the blade smaller than the width of the front end, and the lowermost part of the blade. Between the top and the top, and between the front and the rear, at the bottom and the rear, respectively A skew in which a minimum width portion which is narrower than the width is formed has been proposed (Japanese Patent Application Laid-Open No. 9-168404).

However, this is related to the skate for fixing the blade to the shoe, and was invented when a plate made of a material having a low Young's modulus such as titanium or a titanium alloy was developed. In the case of clap-type slides that have come to be used, the blade holder is separated from the shoes with the pin as a fulcrum and the blade is kept in contact with the ice until the moment of the end of the stroke. Many top scales correspond to the conventional curve by moving the curvature of the curve of the icy surface in the longitudinal direction of the blade or the position of the peak of the curve backward in the traveling direction, as described above. In the latter half of the roke, the blade is in contact with the ice and gains propulsion.

One of the causes is that in the conventional skate fixed to shoes, the latter half of the blade travels away from the ice and the length of the icing surface of the blade becomes shorter, so the lower end of the blade is outside the corner in the curvature direction. Since it was easy to bend in a vertical cross section, the reaction force in the direction of the center of curvature could be obtained relatively easily. However, in the case of the clap type, the latter half of the blade in the traveling direction does not separate from the ice, and the length of the ice contact surface of the blade is long, so that the angle of outward bending described above is greatly reduced. This is because the lower end of the blade is unlikely to be bent in a vertical section outward in the curvature direction of the corner.

The second cause is that the length of the icing surface has become longer, and the amount of bending of the blade holder in the direction opposite to the curvature of the corner, that is, in the direction opposite to the cornering direction, has been greatly increased. It is difficult.

For this reason, many players in the top scale have bent the blade holder in the direction of the curvature of the corner, that is, counterclockwise. Moreover, FRP such as titanium and carbon fiber has shape memory, so even if it is bent to an appropriate curvature, its curvature will decrease after a while, or it will return to its original shape when manufactured. Thus, it is necessary to re-adjust in a short period of time, and the pipe-shaped blade holder may be deformed, and the entire expensive skate may become unusable.

The fact that it changed to a clap-type skate was that the weight of the blade holder could be lowered with both the toes and the heel in the case of the conventional shoe-fixed skate. Since the blade holder must be supported by the toes only immediately after the stroke until the blade holder returns by sprung, not only is the ankle tied to a large load, it is easy to be fatigued, but also the stroke Pitch cannot be raised. This is the third cause.

In the present invention, these three causes were discovered by observation and video analysis, and measures were taken to address them. Disclosure of the invention

The configuration of the present invention is as follows.

According to one aspect of the present _{invention, R, <R 2 <R} 3 ... <R n (R have _{_{R 2, R 3 ..., R}} n is the inner diameter of the holder) two or more different diameters of the non-concentric is With a similar shape including the cylindrical and / or box shape of the above, the tip in the direction of travel is narrow and the thickness gradually increases, so that machining is easy or the inner mold at the time of molding can be integrated and pulled out And / or by attaching a cover cap to the narrow part of the tip, it is possible to adjust the bending of the tip, which is important for high-speed skating. The outer diameter of the ^ part> the outer diameter of the R ₂ part> the outer diameter of the R ₃ part can also be corrected) and the rear end bending can be adjusted by adjusting the thickness of the rear end. It is characterized by being made possible.

The invention of claim 2 is characterized in that the opened rear end of the rear part of the holder of claim 1 is filled with a cushioning material and a reinforcing material such as a rubber-made one-piece ₍ claim 3). In the invention of claim 1, the blade holder according to claim 1 is formed in a rod shape, and viewed from the front. The width of the lower part is wider than the upper part when viewed.

The invention according to claim 4 is that the blade holder according to claims 1 to 3 is made of FRP and Z such as titanium, aluminum or a lightweight alloy containing them as a main component, carbon fiber, or plastic or epoxy resin. Features.

According to a fifth aspect of the present invention, a blade mounting portion having a gap is provided below the blade holder of the first to fourth aspects, and the width of the gap is such that the blade is straight or has a predetermined curvature in the gap. It is characterized in that it is not less than [the thickness of the plate + the height of the chord of the curved line] so that it can be mounted in a curved state, and is preferably detachably mounted with a hot-melt type adhesive. .

According to the invention of claim 6, when the blade is mounted in the gap of claim 5, at least one liner having a plate thickness uniform or tapered in the traveling direction for height adjustment above the blade is provided. By inserting the number of blades, the bending adjustment on the left and right as viewed in the vertical direction of the blade and the curve of the blade or blade edge (commonly called

.5) can be adjusted in the direction of travel in the lowermost position.

The width of the front end of the blade is larger than the width of the rear end, and preferably, the width of the front end of the blade is larger than the width of the rear end by 0.05 mm or more. It is characterized by doing.

! 0 The invention of claim 8 is characterized in that the distance between the rear end and the front end of the blade and between the rear end and the front end of the blade is less than 1/2, preferably about 1/3 of the blade, and A width portion is formed.

According to a ninth aspect of the present invention, the width of the lowermost portion, which is the portion of the blade that is in contact with the ice, is desirably smaller than the width of the uppermost portion by at least 0.05 mm. ί5 The invention according to claim 10 is characterized in that the vertical direction is at a position between the lowermost part and the uppermost part of the blade, and at most 1/2, preferably about 1/3 of the height from the lowermost part to the uppermost part of the blade. It is characterized by forming a minimum width portion. In order to reduce the weight, the invention according to claim 11 uses an intermediate metal piece between the shoe and the blade holder, made of titanium, aluminum or a lightweight alloy containing these as a main component, FRP and / or plastic such as carbon fiber, or the like. It is made of epoxy resin and is separated from the intermediate hardware so that it can be replaced when the fitting part of the heel part is damaged.

According to the invention of claim 12, a plate made of a lightweight material such as titanium which is elongated in the front-rear direction is attached to the shoe sole so that the intermediate hardware of claim 11 is in close contact with the shoe sole. The bolts are tightened at two places in the direction to make them tighter, so that the intermediate hardware is not damaged.

According to the invention of claim 13, the intermediate metal part of claim 11 (including the collar for preventing detachment) closely adheres to the shoe sole and / or the height of the pin hole at the tip thereof is closer to the shoe sole. In order to make the shoes and the blade holder more intimate, the thickness and Z or width of the part behind the part that adheres to the sole of the shoe are gradually reduced to give flexibility, and the upper surface is machined. It is characterized in that it can be flat or flat, so that it is unnecessary or easy to work, and that it is harder to bend in the left and right direction due to tension stress, making it lighter. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a partial cross-sectional view for explaining a state in which a blade is mounted on a blade holder. FIG. 2 is a partial cross-sectional view showing a state where the blade is attached to the blade holder. FIG. 3 is a bottom view showing a state where the blade is attached to the blade holder. FIG. 4 is a diagram for explaining the advantage of decentering the tip of the holder. FIG. 5 is a side view of the swing arm. FIG. 6 is a bottom view of the swing arm. FIG. 7 is a side view showing a state where the blade holder is mounted on the box. Figure 8 is a front view of the blade. (A) shows a straight run and (b) shows a cornering. FIG. 9 is a bottom view of the blade. FIG. 10 shows the correct orientation of a blade holder according to another embodiment. FIG. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a partial cross-sectional view for explaining a state in which a blade is mounted on a blade holder.

Reference numeral 1 denotes a plate holder, which is a cylindrical holder front part 1a (Ka is R,) having a thin and sharp end, and a holder rear part 1b (diameter R ₂ ) having a diameter larger than the holder front part 1a. ) Are integrally connected via a tapered boundary portion 2, and the centers of the holder front portion 1 a and the rear portion 1 b are shifted up and down so that the lowermost portions are as coplanar as possible. It is made of titanium, aluminum, FRP such as lightweight alloy, carbon fiber or the like, and / or plastic or epoxy resin.

Reference numeral 3 denotes a blade mounting portion provided at a lower portion of the blade holder 1. The blade mounting portion 3 has a pair of plate-like members 7, 2 separated by a predetermined distance (about 2 mm) as shown in FIG. A blade 8 is attached to the gap 9 between the plate-shaped members 7, 7,.

If the blade 8 is made of a titanium alloy or an aluminum alloy, the weight can be further reduced.

Reference numeral 4 denotes an intermediate hardware mounting member integral with the upper part of the blade holder 1, and reference numeral 5 denotes a fitting projection located behind the intermediate hardware mounting member 4 and integrated with the upper part of the blade holder 1.

Numeral 6 denotes a hollow portion formed in the blade holder 1, and the diameter of the rear end portion 6b is larger than that of the front end portion 6a. If the diameter of the hollow portion formed in the blade holder 1 is gradually increased from the front end to the rear end in this manner, the core is easily removed when forming the hollow portion, and the manufacturing becomes easy.

In addition, 6 c is a cap for adjusting the bending of the tip, and this is attached. By doing so, the tip of the blade holder 1 can be reinforced. Reference numeral 28 denotes a spring fixing hole.

Follow the procedure below to install blade 8.

First, a blade 8 set in a predetermined desired curvature by a jig or the like is inserted into the gap 9 between the plate-like bodies 7 and 7 ′, and the hot melt adhesive 1 is inserted into the gap 9. Inject 0. The solidification of the hot melt adhesive 10 causes the blade 8 to be joined to the blade holder 1 (see FIGS. 2 and 3).

When the blade 8 is replaced, the joint between the blade holder 1 and the blade 8 is heated to melt or soften the hot-melt adhesive 10, and the blade 8 is melted. Remove it together with the adhesive 10. After that, another blade is mounted in the same procedure as that for mounting the blade 8.

It is preferable to use a hot-melt adhesive 10 which does not soften at room temperature such as when gliding, and has a melting temperature not so high (softening temperature of about 60 ° C or less).

When installing the blade 8 in the gap 9, if the liner 30 is inserted above the blade 8 for height adjustment, the height of the part of the blade 8 that comes out of the holder will be changed and the vertical direction will be changed. In addition to being able to adjust the degree of bending, the blade 8 can be used again even when its height is reduced due to wear and polishing.

A plurality of the liners 30 may be inserted. Also, a plurality of types having different thicknesses may be prepared.

The reason why the tip of the blade holder 1 is eccentric to the lower side in the above embodiment (the lowermost portions of the front and rear portions of the holder are located on the same plane) is as follows.

That is, when the front end is not eccentric, the height h 1 of the front end and the height h 2 of the rear end of the plate-like body 7 satisfy h 1> h 2 as shown by the dotted line in FIG. When the tip is eccentric as shown by the solid line in FIG. 3, the height of the plate-like body 7 is It is almost the same at the rear end h2 (h3 = h2). Therefore, since h 3 <h 1, if the tip of the holder body 2 is eccentric, the blade holder 1 as well as the plate 7 can be made lighter by the amount that the tip of the plate 7 becomes lower. . Also, material costs for expensive blades can be reduced.

When the blade holder 1 and the blade 8 configured as described above are fixed to the shoe main body 12, a skate is formed (see FIG. 7).

In the case of a clap-type skate (a skate where the blade can be separated from the shoe body at the heel), the blade holder 1 and the blade 8 are fixed to the shoe body 12 via the intermediate bracket 13.

This intermediate bracket 13 is a plate-like member as shown in FIGS. 5 and 6, and its tip is branched into two branches. A through hole 15 is formed at the center of each of the branches 14 and 14. Drill. The intermediate metal 13 is made of titanium, aluminum, a light alloy mainly composed of them, FRP such as carbon fiber, and / or plastic or epoxy resin in order to reduce the weight.

Reference numeral 16 denotes a spring mounting groove provided at the center of the intermediate fitting, and reference numerals 17, 18, and 19 denote elongated holes that pass through bolts 20 for fixing to shoes.

Reference numeral 11 denotes a fitting recess, which is detachably attached to the intermediate bracket 13 by a bolt 21.

The intermediate bracket 13 is attached to the blade holder 1 as follows. First, the intermediate hardware mounting member 4 integrated with the upper part of the blade holder 1 is inserted into the gap 29 between the branch portions 14, 14, and further, the branch portions 14, 14 and the intermediate hardware mounting member are inserted. The rotating shaft 22 is inserted into the through hole 15 penetrating through 4, and the blade holder 1 is rotatably mounted on the intermediate bracket 13. In addition, the panels 24, 25 are provided between the panel insertion grooves 40 provided at both ends of the rotating shaft 22 and the spring mounting grooves 16 and the spring fixing holes 26, respectively. (See Figures 2 and 7). The springs 24 and 25 are held by the inner and outer walls 38 and 39 of the spring insertion groove 40 so as not to be separated. In addition, the intermediate bracket 13 is attached to the shoe body 12 as follows.

Numerals 27 and 28 are plates made of lightweight material, such as slender titanium, attached in the front-back direction of the shoe sole, so that they can be adjusted to the left and right of the shoe sole. It is advisable to tighten the bolt 20 and fix the intermediate bracket 13 as described above.

The conventional metal fittings were curved in accordance with the shape of the shoe sole, so it is necessary to prepare various types according to the shape of the shoe sole. However, the metal fittings 13 of the present invention are formed by using a bendable material. However, a simple flat object may be used. In addition, the length of the intermediate bracket 13 can be adjusted by the long hole, which saves a lot of cost. Using a bolt or the like, the front and rear of the intermediate bracket 13 are fixed to the shoe body 12. Then, the middle bracket 13 is curved according to the shape of the sole, so that only one kind is required instead of preparing multiple types according to the shape and length of the sole.

Since the rear end 6b of the hollow part 6 provided in the blade holder 1 is left open, if it is filled with a cushioning material or a reinforcing material 23 made of rubber or rubber resin, etc. Good (see Figure 1).

In the above embodiment, the blade holder 1 is formed by the front part 1a of the holder, the rear part 1b of the holder, and the boundary part 2. However, the intermediate part of the holder is located between the front part 1a of the holder and the rear part 1b of the holder. with a diameter follow before even rather small (not shown) one provided the holder portion to reach the holder rear to large _{_{(R <R 2 <R 3}} ... ku R _n), the holder front holder intermediate portion, Tapered between the rear part of the holder

As mentioned above, there is an advantage in that the blade holder 1 is connected integrally through the boundary of 0, and the upper part of the blade holder 1 is multi-tiered and the lower part is as flat as possible. Further, also possible, as well as to adjust the thickness of the rear end portion to fix the outer diameter ...... outer diameter> R ₃ parts of the outer diameter> R ₂ parts of R of Ri good needs tip You can also adjust the bending at the rear end.

# 5 Next, the blade 8 to be attached to the blade holder 1 will be described.

FIG. 8 is a front view of the blade 8. Blade 8 has a width of 0.05 mm or more, which is smaller than the width of the uppermost part 31 that contacts blade holder 1 by more than 0.05 mm. At the same time, a vertical minimum width portion 33 narrower than the ice contact portion 32 is formed between the uppermost portion 31 and the ice contact portion 32. The minimum width 33 in the vertical direction is preferably not more than 1/2 of the area from the icing part 32 to the top part 3 and is less than about 1 Z3.

¾ to δ

FIG. 7 is a bottom view of the blade 8. The width of the rear end 35 is formed to be narrower than the front end 34 by 0.05 mm or more, and the gap between the front end 34 and the rear end 35 is formed. A minimum width portion 36 in the left-right direction that is narrower than the rear end portion 35 by 0.05 mm or more is formed. The minimum width portion 36 in the left-right direction is provided at a position of 1/2 or less, preferably about 1/3, from the rear end portion 35 to the front end portion 34.

The blade 8 rotates by a predetermined angle around the minimum width portions 33 and 36 while keeping the ice contact portion 32 in close contact with the ice surface 37 (see the dashed line in FIGS. 8 and 9). In cornering, however, the contact surface between the icing portion 17 and the ice surface 22 is not reduced, and it is curved in accordance with the curvature of the corner of the sliding link, so that it can be slid smoothly.

Also, if the whole of the ice contact part 32 is made thinner and the rear end part 35 is made thinner, the blade 8 will bend smoothly and will not bulge outward even when cornering at high speed. .

In the above-described embodiment, the play holder 1 is hollow, but the present invention is not limited to this. However, a hollow shape is better in terms of weight reduction o

The rod-shaped blade holder 1 has a width that is larger at the bottom than at the top, as viewed from the front, as shown in FIG. This is because the width of the lower part cannot be narrowed more than a certain amount due to the mounting of the blade, so reducing the width of the upper part can reduce the weight.

Furthermore, if the blade 8 is formed into a curved shape from the beginning according to the curvature of the link, it does not have to expand outward even when cornering at high speed. In particular, even on short links with a high percentage of curves on a sliding course Fast running is possible. It should be noted that running on a straight line also reduces traversing when bending at the tip decreases, so that the traveling distance can be reduced and the traveling time can be reduced. Therefore, safer high-speed skiing can be performed, and reduction in running time is expected. Industrial applicability

In summary the present invention _{above, R, <R 2 <R} 3 ... ku _{_{R n (R ,,, R 3}} ..., R n the diameter of the holder) two or more cylindrical having different diameter of the non-concentric is And a similar shape including a nose and a box, with a narrow tip in the direction of travel and a gradual increase in thickness, which reduces the weight of the blade holder and reduces the load on the rotating shaft, especially when rotating. You can glide at high speed. In particular, when the blade holder is made of titanium, aluminum, or an FRP and / or plastic or epoxy resin such as carbon fiber or the like as a main component, the above-mentioned effect is increased.

In addition, because the blade is detachable, the blade can be replaced according to the state of the link. Also, when the blade is worn, it can be easily replaced. Also, by inserting the liner above the blade, the worn and reduced height of the blade can be reused.

In addition, the width of the blade is narrower than the others at predetermined positions in the vertical and front-back directions of the blade.

0: the minimum width, the blade does not reduce the contact surface with the ice surface, and the blade is curved according to the curvature of the corner of the sliding link. 'Monkey o

In addition, the intermediate hardware between the shoe and the blade holder may be made of titanium, aluminum or a lightweight alloy mainly composed of them, FRP such as carbon fiber and / or the like.

: 5 Since plastic or epoxy resin is used, the weight of the intermediate hardware can be reduced, and higher speed gliding becomes possible. In addition, the mating part of the heel frequently comes and comes off during sliding, and is more worn than the other parts. By doing so, it is possible to partially replace not all of the intermediate hardware in the event of damage.

In addition, since a plate made of a lightweight material such as titanium is attached to the shoe sole in the front-rear direction, the intermediate hardware adheres to the shoe sole and is hard to be damaged, so that it can be used for a long period of time. This has the effect that the measurement can be performed.

These economic effects are extremely large and are not limited to slap-type skaters, but in particular slap-type skaters are more expensive than conventional skaters, and not only general skaters but also world-class skaters. Because it is not easy to purchase, especially if it is made of FRP and / or plastic or epoxy resin, such as carbon fiber, mass production with the same wooden mold, resin mold or mold will greatly The cost can be reduced and it can contribute to the spread of the schedule.

At the beginning of the skate, anyone will experience severe pain in the muscles outside the shin (tibialis anterior, extensor long finger, etc.), but with the slap-type skates, the end of the stroke It is said that this is alleviated because the heel rises, so it is also preferable for health, and this is often the case for dissemination of skates and promotion of sports ■ It is useful for promoting health ■ The present invention Is one that can play a role.

Claims

The scope of the claims

1. ^ ^ ^ ^ ^ ^ ^ ^ R 3, R _n are non-concentric but different diameters, which are two or more cylindrical and / or similar shapes including a box shape. In the direction, the tip is thin, so that it gradually becomes thicker, so that machining is easy or the inner mold at the time of molding can be integrated, and it can be pulled out and / or the tip is thin The bend adjustment at the tip, which is important for high-speed skating, can be performed by attaching a cover cap to the tip. (If necessary, the outer diameter of the tip> R ₂ external suspicion> R ₃ It can also be modified to the outer diameter of the part) and a blade holder that can adjust the bending of the rear end by adjusting the thickness of the rear end.

2. The clap-type schedule according to claim 1, wherein a cushion material or a reinforcing material such as rubber or carbon is filled in an open rear end of the rear portion of the blade holder.

3. The clap type scale according to claim 1, wherein the blade holder has a rod shape, and a width of a lower portion is wider than an upper portion when viewed from the front.

4. The blade holder according to any one of claims 1 to 3, wherein the blade holder is made of titanium, aluminum, an FRP such as a lightweight alloy containing them as a main component, a carbon fiber, and / or a plastic or an epoxy resin. A clap-type skate according to any one of the preceding items.

5. A blade mounting portion having a gap is provided at a lower portion of the blade holder according to any one of claims 1 to 4, and the width of the gap is such that the blade is straight or curved at a predetermined curvature in the gap. Crap type, characterized in that it is not less than [thickness of blade + height of its curved line] so that it can be mounted in a state, and is preferably detachably mounted with a hot melt type adhesive. Skating.

6. When installing the blade in the gap, insert at least one liner with a uniform thickness or a tapered liner in the traveling direction for height adjustment above the blade. 6. The clap type as claimed in claim 5, wherein the left and right bending adjustments as viewed in the vertical direction and / or the position of the lowermost end of the curve (commonly referred to as a lock) of the blade edge can be adjusted in the advancing direction. Skating.

7. The width of the front end of the blade is larger than the width of the rear end, and preferably, the width of the front end of the blade is 0.05 mm or more larger than the width of the rear end. The clap-type schedule according to claim 5 or 6, characterized in that:

8. A minimum width in the front-rear direction is formed between the rear end and the front end of the blade, and at most 1/2 of the distance from the rear end to the front end of the blade. The clap-type skate according to any one of claims 5 to 7, characterized in that:

9. The blade according to claim 5, wherein the width of the lowermost portion of the blade, which is an icing portion, is preferably smaller than the width of the uppermost portion by at least 0.05 mm. The clap type skate according to item 1.

10. A vertical minimum width part is formed between the bottom and the top of the blade, at a height of 1 Z 2 or less, preferably about 1/3 of the height from the bottom to the top of the blade. Any one of claims 5 to 9 characterized in that:

! 01 Clamp-type schedule according to item 1.

1 1. To reduce the weight, the intermediate hardware between the shoe and the blade holder is made of titanium, aluminum or a lightweight alloy based on them, FRP such as carbon fiber and / or plastic or epoxy resin, and the heel part. The clap-type schedule according to any one of claims 5 to 10, wherein the fitting portion is separated from the intermediate hardware so that the fitting portion can be replaced when it is damaged.

1 2. Slender in the front-rear direction so that the intermediate hardware of claim 11 closely adheres to the sole of the shoe A plate made of a lightweight material such as titanium is attached to the sole of the shoe, and it is bolted at two locations in the front-rear direction, preferably, so that the intermediate hardware is less likely to be damaged. The clap type skate according to claim 11, wherein:

13 3. The intermediate metal part (inclination prevention collar) of claim 11 closely adheres to the sole of the shoe and / or the height of the pin hole at the tip thereof is closer to the sole of the shoe. In order to make the holder more intimate, the thickness and / or width of the part behind the part in close contact with the sole of the shoe should be gradually reduced to provide flexibility, and the upper surface should be processed or unnecessary. The clap type skate according to claim 11, characterized in that the clap type skate may be flat so as to be easy, and that it is harder to bend in the left and right directions due to a tension force, thereby reducing the weight.