JPH1042903A - Bicycle shoes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a band for fastening the instep part from the fastened position in the initial state by providing the fastening band formed of first and second bands vertically superposed each other in cross state on the upper surface of the instep part in the forward position of the ankle. SOLUTION: A fastening band for fastening the instep of foot or an instep part 4 to a sole core body is formed of a first band 6 and a second band 7. The first band 6 has a start end part 9 on the lower part on the outside of a heel part 2, and crosses the second band 7 near the top part of the instep of foot or the instep part 4 of the shoes, and obliquely extends to a terminal part 9 on the inside lower part of a toe top part 3 which is the diagonal end part of the start end part 8. The second band 7 has a start end part 11 in the inside lower part of the heel part 2, crosses the first band 6 near the top part of the instep of foot or the instep part 4 of shoes and obliquely extends a terminal part 12 in the outside lower part of the toe top part 3 which is the diagonal end part of the start end part 11. The first band 6 and the second band 7 are formed of divided bands 6A, 6B and 7A, 7B, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a bicycle shoe. More particularly, the present invention relates to a bicycle shoe provided with a strap for holding the instep.

[0002]

2. Description of the Related Art Many improvements have been made to bicycle shoes interposed between a foot and a pedal so as to increase the transmission efficiency of transmitting the stepping force of the foot to the pedal. Tightening the instep of the foot to the sole enhances the integrity of the foot and the shoe. The degree of the integration is changed by adjusting the tension of the fastening member for fastening the instep of the foot to the shoe sole. If the tension is weak and the integration between the foot and the shoe is poor, not only the transmission efficiency is reduced, but also a time delay occurs between the depressing force and the driving force of the pedal, resulting in lack of immediacy.

[0003] A strap is often used as a tightening member for strong tightening. In this case, if a Velcro strap or Velcro (registered trademark) is used, the tension can be easily adjusted. In order to obtain a stronger tightening force, a simple tension adjusting means is inappropriate.

[0004] It is common practice to fasten the upper to the sole with a plurality of laterally extending straps traversing the upper. If the instep is strongly tightened with such a crossing strap, there is a problem that the following vicious cycle occurs. A series of foot bones (hereinafter referred to as bone veins) extend downward from the upper side, pass through the ankle joint, bend slightly, and extend almost at right angles to the fingertips. In particular, the ridge of the vein runs along the line from the outside.

[0005] The muscle sandwiched between the strongly tightened strap and the ridge of the vein is strongly pressed against the vein by the tightening force. Strong tightening forces can hurt the muscle and cause pain. An obliquely striated strap across the vein loses its initial clamping force. For this reason, the conventional bicycle shoes fall into a vicious cycle in which the initial tightening force must be further increased.

When the strap is tightened so as to overlap the front end face of the ankle in order to increase the fastening force of the shoe to the foot including the upper, the rear edge of the strap damages the ankle. There is a demand for a strap tightening structure that has a large binding force between the foot and the shoe without damaging the front end portion of the ankle and has excellent integration between the foot and the shoe.

[0007]

SUMMARY OF THE INVENTION The present invention has been made based on such a technical background, and achieves the following objects.

It is an object of the present invention to provide a bicycle shoe in which a strap for tightening the upper does not deviate from an initial tightening position.

Another object of the present invention is to provide a bicycle shoe that does not hurt the muscles along the bone veins of the instep.

It is still another object of the present invention to provide a bicycle shoe having a structure for tightening a strap for tightening an upper portion without damaging muscles along a front end portion of an ankle and a bone vein.

It is still another object of the present invention to provide a bicycle shoe in which the tension of the strap for tightening the upper part is permanent.

[0012]

Means for Solving the Problems To solve the above-mentioned problems, the following means are adopted.

The bicycle shoe according to the first aspect of the present invention includes a fastening strap for fastening the instep of the foot to the sole, and the cleat strap is attached to the shoe sole. It is composed of a first strap and a second strap which are vertically overlapped in a crossed manner on the upper surface of the instep of the foot at the front of the ankle.

A bicycle shoe according to a second aspect of the present invention is provided with a fastening strap for fastening the instep of the foot to the shoe sole, and the cleat strap is attached to the shoe sole. The first band and the second band are integrally formed of a first band and a second band intersecting in a crossed manner on the upper surface of the instep of the foot at the front of the ankle.

A bicycle shoe according to a third aspect of the present invention is the bicycle shoe according to the first or second aspect, wherein either the first strap or the second strap is formed by a first split strap and a second split strap. ,
The first split strap and the second split strap have one ends fixed to each other and the other end free, and the first split strap and the second split strap are connected. The position is characterized by being variable.

According to a fourth aspect of the present invention, in the bicycle shoe according to the first or second aspect, the first strap is formed of a first split strap and a second split strap, and the second strap is formed of a third split strap. The third divided band is formed by a band and a fourth divided band, and the first divided band and the second divided band have one end fixed to each and the other end free. One end of each of the cord and the fourth split cord is fixed, and the other end is free, and the connecting position where the first split cord and the second split cord are connected is variable. And the coupling position at which the third divided band string is connected to the fourth divided band string is variable.

A bicycle shoe according to a fifth aspect of the present invention is the bicycle shoe according to the first or second aspect, wherein an instep pressing member for pressing the instep of the foot is provided below the first strap and the second strap. It is characterized by:

The bicycle shoe according to the sixth aspect of the present invention is the bicycle shoe according to the first aspect.
In one invention selected from 2, 3, and 4, the rear ends of the first strap and the second strap are fixed near the heel.

According to a seventh aspect of the present invention, in the bicycle shoe according to the sixth aspect, the first strap and the second strap are tightened so as to form a double spiral winding from the lower part of the heel to the upper part. It is characterized by:

According to an eighth aspect of the present invention, there is provided the bicycle shoe according to the first or second aspect, wherein the tightening strap is crossed at the top of the instep from the vicinity of the heel through the lower part of the ankle to the vicinity of the fingertip. It is characterized by running diagonally to.

According to a ninth aspect of the present invention, there is provided a bicycle shoe according to the first or second aspect, wherein the fastening strap is provided with an adjusting means for adjusting a length.

A bicycle shoe according to a tenth aspect of the present invention is provided with a fastening strap for fastening the instep of the foot to the sole, and the cleat strap is attached to the sole of the shoe. A first strap and a second strap which are vertically overlapped in a crossed manner on the upper surface of the upper part of the foot in front of the ankle, and the fastening strap is an upper surface of the upper part of the foot in front of the ankle A first band string and a second band band which cross each other in a cross-over manner. The first band band is formed by a first divided band band and a second divided band band.
The obi strap is formed by the third divided obi strap and the fourth divided obi strap,
One end of each of the first split strap and the second split strap is fixed, and the other end of each is free, and the third split strap and the fourth split strap are each one. One end is fixed and the other end is free, respectively, and the connecting position where the first split strap and the second split strap are connected is variable, respectively, and the third split strap and the fourth split strap are connected to each other. The coupling positions where the split straps are connected are respectively variable, and the rear ends of the first strap and the second strap are fixed near the heel, and the first strap and the second strap are connected to each other. The two straps are tightened so as to wind in a double spiral from the lower part of the heel to the instep, and the tightening strap is provided at the top of the instep from the vicinity of the heel through the lower part of the ankle. It crosses and runs diagonally to the vicinity of the fingertip, and the tightening strap has an adjustable length. It is interposed adjusting means

[0023]

According to the present invention, there is provided a bicycle shoe having a semi-cylindrical or plate-like bone having an upper part between an ankle and a fingertip part. A double cross spiral wound around the structure. The intersection of the double helix is necessarily located ahead of the front end line of the ankle. The forward end of the ankle that leans forward does not hit the instep fastening strap.

[0024] Even if the tension is strong, the instep fastening strap that winds helically is unlikely to be displaced from the bone structure. In particular, the intersecting double helical instep fastening strap is less likely to slip with respect to the bone structure.

Also, the angle between the strap that winds around the instep bone structure and the ridge line of the bone structure (outer edge line of the bone structure) is smaller than a right angle. Since the long straps intersect the long ridge line and are pressed against the bone structure in a long range, the pressure per unit length (area) is small even if the tightening force is large.

From the starting point at the rear lower part of the heel, through the ankle below the ankle, near the apex of the instep, in particular, near the apex at the rear end, which is slightly smaller than the apex at the back end of the instep, and passes near the apex from the front. The instep fastening strap that runs diagonally to the fingertip, which is the end point of the diagonal end point, spirally winds around the foot from the start end point to the end point.

[0027] The bicycle shoe according to the present invention is stable without losing the initial tightening force even when intense exercise is performed by being fixed to the bicycle pedal via the cleats. Does not hurt.

[0028]

Next, an embodiment of the present invention will be described. 1 to 3 are a plan view, an oblique axis projection view, and a rear view, respectively, showing Embodiment 1 of the bicycle shoe of the present invention. The figure shows one for the right foot. The bicycle shoe according to the first embodiment has an exposed sole core 1, an exposed heel portion 2 joined to the rear portion of the sole core 1 and including a skin, and joined to a front portion of the sole core 1 to cover a toe portion. It is composed of a fingertip part 3 including an epidermis, a sole core 1, a heel part 2, and an upper part 4 joined to the fingertip part 3 and covering the upper part of the foot from the upper surface.

The upper part 4 is formed of two leaves which rise from the left and right sides of the sole core 1 and overlap vertically on the upper surface of the upper part of the foot. Both leaves of the upper part 4 have fixed ends fixed to the shoe sole core 1, respectively, the other ends are free, and the other ends are vertically overlapped.

Sole core 1 for transmitting the stepping force of the foot to the pedal
Is a molded body made of a hard material such as FRP (fiber reinforced resin such as fiber reinforced thermosetting resin). Heel part 2,
The fingertip 3 is formed of a material softer than the shoe sole core 1. The upper part 4 is in the form of a two-layer sheet in which a stretchable but inflexible material, for example, a nylon sheet and a polyester sheet are laminated.

A fastening strap for fastening the instep or instep 4 to the shoe sole core 1 is composed of a first strap 6 and a second strap 7. The first strap 6 has a start end 8 at a lower portion outside the heel portion 2, and a second end portion near the apex of the upper of the foot or the upper 4 of the shoe via the lower portion of the ankle of the foot. It crosses the strap 7 and runs obliquely to the end 9 at the lower part inside the fingertip 3 which is the diagonal end of the start end 8.

The second strap 7 has a starting end 11 at the lower part inside the heel part 2 and near the top of the upper part of the foot or the upper part 4 of the shoe via the lower part of the ankle of the foot. And runs obliquely to the lower end portion 12 outside the fingertip portion 3 which is a diagonal end portion of the start end portion 11 and crosses the first band cord 6.

That is, the first strap 6 and the second strap 7 are vertically overlapped in a crossed manner on the upper part of the instep or the upper part 4 of the foot at the position in front of the ankle to form a double spiral. It wraps around and crosses over the pelvis forming the part. The crossing point is a position slightly forward of the top of the instep of the foot, that is, near the top. The bone vein of the foot, which is formed in a series, extends downward from the upper side, slightly descends via the ankle joint, bends almost at a right angle, and reaches the fingertip.

In particular, the ridge of the bone vein is clearly running toward the outside. Some ridges run inward, but are not as clear as those on the outside. The first belt cord 6 crosses such a ridge line on the outer side at a small angle of 90 degrees or less at an angle of about 40 degrees. Therefore, the first strap 6 having a certain width is running so as to completely cover the ridge line.

As shown in FIG. 4, the first strap 6 and the second strap 7 are each formed of two split straps. The first split strap 6A and the second split strap 6B of the first strap 6
Are made continuous by the first tension adjusting means 13. The third split strap 7A and the fourth split strap 7B of the second strap 7 are made continuous by the second tension adjusting means 14.

As the first tension adjusting means 13 and the second tension adjusting means 14, buckles each employing a conventional ratchet mechanism are used. For bicycle shoes that require a large amount of tension, a simpler bonding and disassembly can be performed by using a surface-attaching tape (registered trademark name is used, which is called Velcro fastener, magic tape, etc.).
It is more preferable to use a so-called ratchet-type elastic band cord, which is provided with multi-staged uneven teeth 16 like saw teeth and is not broken unless mechanically joined and broken.

The upper part 4 comprises an inner upper part pressing part 4a and an outer upper part pressing part 4b. Inner upper part pressing part 4a
Are fixed to the front region 2 a of the heel portion 2 (FIG. 1) and the shoe sole core 1. The inner instep pressing portion 4a rises upward from the inner edge of the shoe sole core 1, and is curved so as to cover the instep of the foot.

The rear edge 21 of the inner upper part pressing portion 4a and the heel part 2
The upper end edge 22 forms a substantially closed curve at the time of tightening shown in FIG. 1, but the inner upper part pressing portion 4 a and the heel part 2 are intermittently provided with a tear 23. Such a closed curve is the opening edge 24 surrounding the ankle of the foot. Opening edge 24
As shown in FIG. 2, a concave portion 25 is formed by bending downward just below the malleolus. Due to the formation of the depression 25, the ankle and the opening edge 24 do not come into contact with each other. The portion 26 belonging to the heel portion 2 and in contact with the front surface of the ankle extends forward, but its extension width is small and small.

As shown in FIG. 2, the outer upper part pressing portion 4 b is fixed to the rear side of the heel part 2 and the shoe sole core 1. The outer instep pressing portion 4b generally extends obliquely from the rear lower position to the fingertip position via the instep position of the foot, and overlaps from above the inner instep pressing portion 4a. The outer instep pressing portion 4b is in the form of a band formed wide. The approximate center line of the outer instep pressing portion 4b is indicated by the symbol CL in FIG.

Inner upper pressing portion 4a and outer upper pressing portion 4
b is a position in front of the opening edge 24 of the opening into which the ankle is inserted, and presses the instep of the foot double from above. The outer instep pushing part 4b advances in the height direction while advancing from the rear part to the front part, and stands up while avoiding the position of the ankle of the foot.

The front end portion of the outer instep pressing portion 4b is pressed by a band-shaped fingertip pressing band cord 27 for holding the fingertip. Both end portions of the fingertip pressing strap 27 are fixed to the shoe sole core 1. As shown in FIG. 3, a window 17 and a plurality of elongated holes 18 having a horizontal stripe shape are formed in one side 4b of the upper part 4 as shown in FIG. The polyester layer 19 can be seen from the window 17. The window 17 and the long hole 18 are provided to enhance the flexibility of the upper part 4 having poor elasticity.

At the instep of the foot, there is a curved pelvis forming a three-dimensional arch structure. The bones forming the pelvis form a ridgeline (outer edge line of the bones) which descends from the position of the ankle, curves, turns in the horizontal direction, and proceeds slightly obliquely downward.
The outer instep pressing portion 4b obliquely intersects the ridgeline that appears as the outer edge line of the bone body extending forward and continuously to the ankle. That is, the center line CL of the outer instep pressing portion 4b is spirally wound around the ridge line.

From the upper surface of the outer instep pressing portion 4b spirally wound around the pelvis, the first split strap and the second split strap are wound in a double spiral (from one-third rotation). It is wrapped around by a quarter turn.) First tension adjusting means 1
The third and the first tension adjusting means 14
The shoe and the foot are strongly connected by the split strap 6A (or and the third split strap 7A) and the second split strap 6B (or and the fourth split strap 7B). The first split strap (or and the third
The binding force between the split lace 7A) and the second split lace (or and the fourth split lace 7B) is determined by the width of the inner upper pressing portion 4b and the outer upper pressing portion 4b. Act on. Since this acting force is dispersed and acts on the instep of the foot via the inner instep pressing portion 4b and the outer instep pressing portion 4b, the bonding force is strong, but the instep of the foot, especially near the top, is damaged. Absent.

The integral bone structure extending from the heel below the ankle to the fingertip can be abstracted as an integral cylinder or elliptical cylinder. The fastening straps 6, 7 are wound around such a column so that two vines are wound around one stem in a double spiral. It is generally well-known that according to such a winding method, unlike what is wound in the direction perpendicular to the axis, the wound object does not loosen.

That is, when the trunk bends in a direction in which one ivy loosens, the tension of the other ivy increases, and the trunk tries to return to its original shape. Such a relationship is realized between the foot from the heel to the fingertip and the fastening straps 6 and 7. The left and right first straps 6, the second straps 7, and the heels 2 extending from the heel to the top of the instep are:
It is completely wrapped around the axis of the ankle and spirally wrapped around the instep of the foot to enhance the integrity of the foot and the shoe.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of a bicycle shoe according to the present invention.

FIG. 2 is an oblique axis projection view showing the first embodiment.

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a left side view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Sole core 2 ... Heel part 3 ... Fingertip part 4 ... Upper part 5 ... Tightening strap 6 ... First strap 7 ... Second strap 13 ... First tension adjusting means 14 ... Second tension adjustment means

Claims (10)

[Claims] 1. A bicycle shoe having a fastening strap for fastening an upper part of the foot to a shoe sole, wherein the cleat is attached to the shoe sole, wherein the fastening strap is attached to a foot in front of an ankle. A bicycle shoe comprising a first strap and a second strap which are vertically overlapped in a crossed manner on the upper surface of the upper part. 2. A bicycle shoe provided with a fastening strap for fastening an upper part of the foot to a sole, wherein the cleat is attached to the sole of the shoe, wherein the fastening strap is attached to a foot at a position in front of the ankle. A bicycle shoe comprising a first strap and a second strap which cross in a crossed manner on the upper surface of the upper part, wherein the first strap and the second strap are integrated. 3. The first split strap according to claim 1, wherein one of the first strap and the second strap is formed by a first split strap and a second split strap. And the second split strap is fixed at one end to each other, and the other end is free to each other, and the coupling position at which the first split strap and the second split strap are connected is variable. Bicycle shoes characterized by the following. 4. The strap according to claim 1, wherein the first strap is formed by a first strap and a second strap, and the second strap is a third strap and a fourth strap. The first divided band string and the second divided band string each have one end fixed to each other and the other one end is free, respectively. The third divided band string and the fourth divided band One end of each of the cords is fixed and the other end of each of the cords is free, and the joining position where the first split strap and the second split strap are connected is variable, and the third split is A bicycle shoe, wherein a connecting position at which the strap is connected to the fourth split strap is variable. 5. The bicycle according to claim 1, wherein an instep pressing member for pressing the instep of the foot is provided below the first strap and the second strap. shoes. 6. The method according to claim 1, wherein the rear ends of the first and second straps are fixed in the vicinity of the heel. Bicycle shoes characterized by the above-mentioned. 7. The bicycle according to claim 6, wherein the first strap and the second strap are tightened so as to form a double spiral winding from a lower part of the heel part to the upper part. shoes. 8. The fastening strap according to claim 1, wherein the fastening strap runs obliquely from the vicinity of the heel to the top of the upper part via the lower part of the ankle and to the vicinity of the fingertip. Bicycle shoes characterized by the following. 9. A bicycle shoe according to claim 1, wherein an adjusting means for adjusting the length is interposed in said fastening strap. 10. A bicycle shoe having a fastening strap for fastening an upper part of the foot to a sole, wherein the cleat is attached to the sole of the shoe, wherein the fastening strap is for a foot located in front of the ankle. A first strap and a second strap which are vertically overlapped in a cross-shaped manner on the upper surface of the upper, and the fastening straps cross in a cross-shaped manner on the upper surface of the upper part of the foot in front of the ankle; A first band and a second band; the first band is formed by a first band and a second band; the second band is a third band and a fourth band. The first split strap and the second split strap have one end fixed to each and the other end free, respectively, and the third split strap and the fourth split are formed by a strap. One end of each of the straps is fixed, and the other end of each of the straps is free. The coupling positions where the cords are connected are respectively variable, and the coupling positions where the third divided band cords and the fourth divided band are connected are respectively variable, and the first band cord and the second band are respectively connected. The rear end of each of the straps is fixed in the vicinity of the heel, and the first strap and the second strap are tightened so as to be wound in a double spiral from the lower part of the heel to the instep. The fastening strap runs obliquely from the vicinity of the heel portion to the vicinity of the fingertip portion at the top of the instep through the lower part of the ankle, and the length of the fastening strap is adjusted. A bicycle shoe characterized in that an adjusting means for performing the adjustment is interposed.