WO2021064987A1

WO2021064987A1 - Shoe

Info

Publication number: WO2021064987A1
Application number: PCT/JP2019/039312
Authority: WO
Inventors: 貴志猪股; 大樹脇田; 智一郎尾崎
Original assignee: 株式会社アシックス
Priority date: 2019-10-04
Filing date: 2019-10-04
Publication date: 2021-04-08
Also published as: JPWO2021064987A1; JP7495424B2

Abstract

This shoe 100 is provided with a sole 10 and an upper 50 provided upward of the sole 10. An outer foot hoisting part 16e that supports the side of an outer foot is provided on the upper surface of the sole 10, the outer foot hoisting part 16e extending upward in a corresponding area Ac that corresponds at least to the fifth metatarsal bone M5 in the longitudinal direction of the shoe 100.

Description

shoes

The present invention relates to shoes.

Shoes with a winding top on the side of the sole are known. For example, Patent Document 1 describes a shoe having an outer sole, a midsole, and a stabilizer. The stabilizer of this shoe is provided with a substrate portion sandwiched between the outer sole and the midsole, and a winding upper portion that winds upward along the side surface of the shoe from the substrate portion. The substrate portion of the stabilizer covers substantially the entire proximal phalanx from the head of the fifth metatarsal bone of the foot from below, and the upper part of the roll covers the head of the metatarsal bone from the outside of the foot.

Japanese Unexamined Patent Publication No. 2007-135824 U.S. Pat. No. 4,449,306 International Publication No. 2013/1682858 Japanese Unexamined Patent Publication No. 2000-253904

The present inventors have obtained the following recognition regarding sports shoes. In indoor sports such as volleyball, footwork that suddenly changes direction or stops suddenly while running is often used. If a strong lateral load is applied to the outer foot side of the foot during this footwork, the foot may skid from the outer foot side of the sole in shoes with insufficient support on the outer foot side. If the foot slides in the shoe, the footwork will be disturbed, so it is desirable to suppress the side slip.

In the shoe described in Patent Document 1, in order to support the side surface of the outer foot, a winding upper portion that covers the head of the metatarsal bone from the side surface is provided. According to the research by the inventors, it was found that the support range of the foot side of this shoe is biased forward with respect to the load distribution during footwork. From these, the present inventors have recognized that the shoes described in Patent Document 1 have room for improvement from the viewpoint of optimizing the support range of the side surface of the foot.
Such a problem may occur not only for volleyball shoes but also for other types of shoes.

The present invention has been made in view of these problems, and an object of the present invention is to provide shoes capable of improving the front-rear balance of the support range of the side surface of the foot.

In order to solve the above problems, the shoe of a certain aspect of the present invention includes a sole and an upper provided above the sole. The upper surface of the sole is provided with an upper part of the outer foot side winding that supports the side of the outer foot, and the upper part of the outer foot side winding extends upward in the corresponding area corresponding to at least the fifth metatarsal bone in the anteroposterior direction of the shoe. ..

It should be noted that any combination of the above, and those in which the components and expressions of the present invention are mutually replaced between methods, devices, programs, temporary or non-temporary storage media on which programs are recorded, systems, and the like are also used. It is effective as an aspect of the present invention.

According to the present invention, it is possible to provide shoes capable of improving the front-rear balance of the support range on the side surface of the foot.

It is a side view which shows typically the shoe which concerns on embodiment of this invention. It is a top view which shows the shoe of FIG. 1 schematically. It is a top view which shows schematic the sole of the shoe of FIG. It is a side view which shows typically the sole of the shoe of FIG. It is a bottom view which shows schematic the sole of the shoe of FIG. FIG. 5 is a cross-sectional view showing a cross section of the sole of FIG. 5 along the line EE.

Hereinafter, the present invention will be described with reference to each drawing based on a preferred embodiment. In the embodiments and modifications, the same or equivalent components and members are designated by the same reference numerals, and redundant description will be omitted as appropriate. In addition, the dimensions of the members in each drawing are shown enlarged or reduced as appropriate for easy understanding. In addition, some of the members that are not important for explaining the embodiment in each drawing are omitted and displayed.

In addition, terms including ordinal numbers such as 1st and 2nd are used to describe various components, but this term is used only for the purpose of distinguishing one component from other components, and this term is used. The components are not limited by.

[Embodiment]
Hereinafter, the configuration of the shoe 100 according to the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view schematically showing the shoe 100 according to the embodiment. This figure is a view of the shoe 100 viewed from the outer foot side. The following figures, including FIG. 1, show shoes for the right foot unless otherwise specified, but the description herein applies similarly to shoes for the left foot. FIG. 2 is a plan view schematically showing the shoe 100.

The shoe 100 of the present embodiment can be used as a shoe for sports such as volleyball and basketball, for example. The shoe 100 can also be used as a shoe for another sport such as tennis. Further, the shoe 100 can also be used as a shoe for walking or running.

The shoe 100 includes a sole 10 and an upper 50 provided above the sole 10. The upper 50 is fixed above the sole 10 by means such as adhesion. The upper 50 has a tongue 60 and is tightened, for example, by a lace (not shown).

Hereinafter, in a state where the shoe 100 is placed on the horizontal plane Fh (hereinafter, referred to as "horizontal state"), the width direction of the upper 50 is simply referred to as "width direction", and the direction along the width direction center line La of the upper 50 is defined as It is called "front-back direction", and the vertical direction is called "vertical direction". The width direction, the front-back direction, and the up-down direction are orthogonal to each other. The width direction and the front-back direction are directions parallel to the horizontal plane Fh.

Also, the direction from the heel to the toe side of the upper 50 along the center in the width direction is called "front side" and "front side", and the opposite direction is called "rear side" and "rear side". Further, the directions from the outer foot side to the inner foot side along the width direction are referred to as "inner side" and "inner side", and the opposite directions are referred to as "outer side" and "outer side". Further, the directions from the sole 10 to the upper 50 along the vertical direction are referred to as "upper side" and "upper side", and the opposite sides are referred to as "lower side" and "lower side".

(Sole)
The sole 10 will be described with reference to FIGS. 3 to 6. FIG. 3 is a plan view showing the sole 10. In FIG. 3, a line representing the outline of the outermost shape of the sole 10 in top view (hereinafter referred to as “sole outer line 22”) is shown by a solid line, and a line representing the outline of the outermost shape of the upper 50 in top view (hereinafter referred to as “upper outer shape”) Line 52 ") is shown by a broken line. FIG. 4 is a side view of the sole 10 as seen from the outer foot side.

The upper outer line 52 includes an upper inner foot side outer line 52j inside from the center line La and an upper outer foot side outer line 52e outside from the center line La. The sole outer line 22 includes an outer line 22j on the inner foot side of the sole inside from the center line La and an outer line 22e on the outer foot side of the sole outside from the center line La.

In the present specification, as shown in FIG. 3, the region corresponding to the fifth metatarsal bone M5 (metatarsal bone of the little finger) in the anterior-posterior direction is referred to as a corresponding region Ac. The corresponding region Ac is a region from the head of the fifth metatarsal bone M5 (metatarsal head) to the base of the fifth metatarsal bone M5 (metatarsal bone base) in the anterior-posterior direction. More specifically, the corresponding region Ac is a band-shaped region in which the anterior-posterior range from the head to the base of the fifth metatarsal bone M5 is extended in the width direction.

As shown in FIG. 4, the sole 10 has a sole lower surface portion 12, a sole upper surface portion 14, and a winding upper portion 16. The sole lower surface portion 12 has a ground contact surface portion 12s for contacting the ground, and is provided on the lower surface of the sole 10. The sole upper surface portion 14 has a foot contact surface portion 14s for contacting the sole of the foot, and is provided on the upper surface of the sole 10. The winding top 16 supports the circumference of the foot. In FIG. 4, the arthropod surface portion 14s is shown by a broken line. The ground contact surface portion 12s is in contact with not only the ground but also the floor surface and the road surface. In addition, the foot contact surface portion 14s may come into direct contact with the foot, or may indirectly come into contact with the foot via the inner sole or insole.

(Top of the volume)
The upper part of the volume will be described. In competitions such as volleyball, basketball, and tennis, a quick lateral turn is required. At that time, a high lateral load is applied to the foot, so that the foot is likely to spill from the sole. In such situations, the lateral force transmitted to the ground is lost, resulting in poor performance. The winding upper portion 16 extends upward from the sole upper surface portion 14 so as to surround the side surface of the foot. By having the winding upper portion 16, the foot is firmly supported by the sole, so that the loss of force from the foot can be reduced.

The winding upper portion 16 of the present embodiment has a shape protruding upward along the surface of the upper 50, and a part thereof may have a shape of being rolled up. The winding upper portion 16 does not have to be fixed to the upper 50, but is fixed in this example. The winding upper part 16 of the present embodiment includes a front side winding upper part 16f, an outer foot side winding upper part 16e, and an inner foot side winding upper part 16j. The front winding upper portion 16f is provided along the front edge of the sole upper surface portion 14 and extends upward along the front end portion 50f of the upper 50 to support the front side of the foot.

The outer foot side winding upper portion 16e is provided on the upper surface of the sole 10 to support the side of the outer foot. The outer foot side winding upper portion 16e of the present embodiment is provided along the outer foot side edge of the sole upper surface portion 14, and extends upward along the outer foot portion 50e of the upper 50 to support the outer foot side of the foot. To do. By having the outer foot side winding upper portion 16e, it is possible to support the load in the width direction applied to the outer foot side surface and suppress the side slip to the outer foot side. The outer foot side winding upper portion 16e is provided over a front-rear range including the corresponding region Ac, and extends upward at least in the corresponding region Ac. In this case, the front-rear balance of the support range on the side surface of the outer foot can be improved. As an example, the outer foot side winding upper portion 16e may be a wall portion having an inner wall surface portion 16v that supports the side surface of the foot and rising upward (see also FIG. 6).

As an example, the outer foot side winding upper portion 16e may be formed in a range of at least 20% or more and 50% or less from the toes when the front-rear length L1 of the shoe 100 is 100%. In this case, since the outer foot side winding upper portion 16e is formed over the front-rear region including the range, the foot side surface can be supported against a wide range of outward loads.

The height of the ridgeline of the outer foot side winding upper part 16e (hereinafter referred to as "outer foot side ridgeline 18e") may be constant in the front-rear direction, but in this example, it changes up and down. A part of the outer foot side winding upper portion 16e may be cut out. In the present embodiment, when the anterior-posterior length of the shoe 100 is 100%, the top 18p of the outer foot side ridge line 18e in the range from the toe to 70% is posterior to the head of the fifth metatarsal bone M5 in the corresponding region Ac. Is formed in. In this case, the top 18p of the outer foot side ridge line 18e can be arranged at an appropriate position.

The inner foot side winding upper portion 16j is provided on the upper surface of the sole 10 to support the side of the inner foot. The inner foot side winding upper portion 16j of the present embodiment is provided along the inner foot side edge of the sole upper surface portion 14, and extends upward along the inner foot portion 50j of the upper 50 to support the inner foot side of the foot. To do. By having the inner foot side winding upper portion 16j, it is possible to support the load in the width direction applied to the side surface of the inner foot and suppress the side slip to the inner foot side. If the upper portion 16j of the inner foot side winding is too high, the inward flexion of the foot becomes cramped and it becomes difficult to dash. Therefore, in the present embodiment, the ridge line of the inner foot side winding upper portion 16j (hereinafter referred to as “inner foot side ridge line 18j”) is formed lower than the outer foot side ridge line 18e in the corresponding region Ac. In this case, the inward flexion of the foot becomes easy.

In the present embodiment, the top 18q of the inner foot side ridge line 18j of the inner foot side winding upper part 16j is formed in the corresponding region Ac. The apex 18q is formed lower than the apex 18p of the outer foot side ridge line 18e. In this case, the flexion of the foot becomes easier. As an example, the inner foot side winding upper portion 16j may be a wall portion having an inner wall surface portion 16w that supports the side surface of the foot and rising upward (see also FIG. 6).

In the present embodiment, the outer foot side winding upper portion 16e and the inner foot side winding upper portion 16j have

lower rigidity portions

16b and 16c formed of a highly flexible and low rigidity material and higher rigidity than the

low rigidity portions

16b and 16c. It has high-

rigidity portions

16m and 16n. The low-

rigidity portions

16b and 16c extend from the middle portion in the front-rear direction of the outer foot side winding upper portion 16e and the inner foot side winding upper portion 16j to the toe side, and the high-

rigidity portions

16m and 16n are the rear ends of the low-

rigidity portions

16b and 16c. Extends from to the heel side. The high-

rigidity portions

16m and 16n have a band shape extending obliquely backward and upward from the side of the foot contact surface portion 14s. The rear ends of the high-

rigidity portions

16m and 16n are separated upward from the arthropod surface portion 14s. Since the high-

rigidity portions

16m and 16n have low flexibility and are not easily deformed, the deformation of the upper 50 when a lateral load is applied is suppressed, and the foot position with respect to the sole 10 is strongly supported.

(Sole overhang)
The sole overhanging part will be described. In order to reduce the loss of force when a lateral load is applied to the foot, the sole 10 of the present embodiment has an overhanging portion 20 protruding from the upper 50 in the width direction in a top view. The overhanging portion 20 of the present embodiment includes an outer foot side overhanging portion 20e protruding in the width direction from the outer foot portion 50e of the upper 50 and an inner foot side overhanging portion 20e extending in the width direction from the inner foot portion 50j of the upper 50. Including part 20j. The outer foot side outer line 22e of the sole is the outer line of the outer foot side overhanging portion 20e. The outer line 22j on the inner foot side of the sole is the outer line of the overhanging portion 20j on the inner foot side.

By having the outer foot side overhanging portion 20e, it is possible to suppress the posture change of the shoe 100 when a lateral load is applied to the outer foot side. The outer leg side overhang portion 20e may be provided over at least a front-rear range including the corresponding region Ac. In this case, the front-rear balance of the support range on the side surface of the outer foot can be improved.

As an example, the outer foot side overhang portion 20e may be provided in a range of at least 20% or more and 50% or less from the toes when the front-back length L1 of the shoe 100 is 100%. In this case, the posture change of the shoe 100 can be suppressed against a wide range of outward loads. The outer foot side overhanging portion 20e of the present embodiment is provided over the entire front-rear range of the outer foot portion 50e.

In the corresponding area Ac, the amount of protrusion Be in the width direction from the outer foot portion 50e of the upper 50 of the outer foot side overhang portion 20e may be 3% or more with respect to the front-rear length of the shoe 100. In this case, it is suggested that the posture change with respect to the load of the shoe 100 can be further suppressed. From the same viewpoint, the width direction overhang amount Be is more preferably 6% or more with respect to the front-rear length of the shoe 100. From the viewpoint of ensuring flexibility, the overhang amount Be in the width direction is preferably 10% or less.

By having the inner foot side overhanging portion 20j, it is possible to suppress the posture change of the shoe 100 when a lateral load is applied to the inner foot side. The inner foot side overhang portion 20j of the present embodiment is provided on the forefoot portion and the hindfoot portion of the inner foot portion 50j, and is not provided on a part of the middle foot portion. In the region where the inner foot side overhang portion 20j is not provided, the sole inner foot side outer line 22j recedes in the width direction from the inner foot portion 50j of the upper 50, and the inner foot portion of the sole inner foot side outer line 22j. The amount of protrusion Bj in the width direction from 50j is zero or less (minus).

In the corresponding area Ac, the widthwise overhang amount Bj of the upper 50 of the sole inner foot side outer line 22j from the inner foot portion 50j is smaller than the widthwise overhang amount Be of the outer foot side overhanging portion 20e, or , May be less than or equal to zero. In this case, the change in the posture of the shoe 100 with respect to the footwork with the inner foot side of the shoe 100 as the fulcrum can be facilitated.

The sole 10 will be further explained. FIG. 5 is a bottom view of the sole 10. FIG. 6 is a cross-sectional view showing a vertical cross section of the sole 10 along the line EE. As shown in FIG. 6, the sole 10 has a ground contact surface portion 12s, a recess 12d, outer

wall surface portions

16y and 16x,

ridge lines

18j and 18e, inner

wall surface portions

16w and 16v, and a foot contact surface portion 14s. As described above, the ground contact surface portion 12s is a portion for contacting the ground, and in this example, the ground contact surface portion 12s is provided on the front side and the rear side with the recess 12d interposed therebetween. The recess 12d is a portion recessed upward from the ground contact surface portion 12s.

The outer

wall surface portions

16y and 16x are the outer wall surfaces of the winding

upper portions

16j and 16e. The inner

wall surface portions

16w and 16v are the inner wall surfaces of the winding

upper portions

16j and 16e. The

ridge lines

18j and 18e are formed at the upper end intersections of the outer

wall surface portions

16y and 16x and the inner

wall surface portions

16w and 16v. As described above, the foot contact surface portion 14s is a flat portion for contacting the sole of the foot, and is connected between the root portions of the inner

wall surface portions

16w and 16v.

The dimensional relationship in the corresponding region Ac of the sole 10 of the present embodiment will be described. Each of these dimensional relationships can ensure support for the lateral load applied to the outer foot side when the footwork changes direction or suddenly stops on the outer foot side, and can suppress the side slip of the foot. In addition, the inner foot side can be easily bent, and the change in posture with respect to the footwork with the inner foot side as a fulcrum can be smoothed. Therefore, these effects can be realized by having one or more of these dimensional relationships.

(1) In the corresponding region Ac, the height Hj of the top 18q is lower than the height He of the top 18p.
(2) In the corresponding region Ac, the height Gj of the top 18q from the arthropod 14s is lower than the height Ge of the top 18p from the arthropod 14s.
(3) In the corresponding region Ac, the frontal view radius (corner Rj) of the connection portion between the outer wall surface portion 16y and the ground contact surface portion 12s is the front view cross-sectional radius (corner Re) of the connection portion between the outer wall surface portion 16x and the ground contact surface portion 12s. Greater.

(4) In the corresponding region Ac, the frontal view radius (corner Rn) of the connection portion between the inner wall surface portion 16w and the foot contact surface portion 14s is the front view cross-sectional radius (corner Rm) of the connection portion between the inner wall surface portion 16v and the ground contact surface portion 12s. ) Greater.
(5) In the corresponding region Ac, the widthwise protrusion dimension De of the outer foot side winding upper portion 16e of the ground contact surface portion 12s from the ridge line 18e is the width direction protrusion dimension Dj from the ridge line 18j of the inner foot side winding upper portion 16j of the ground contact surface portion 12s. Greater than.
(6) The angle (for example, 80 ° to 100 °) formed by the outer wall surface portion 16y on the inner foot side and the ground contact surface portion 12s is from the angle formed by the outer foot side, the outer wall surface portion 16x, and the ground contact surface portion 12s (for example, 55 ° to 75 °). large. That is, the outer wall surface portion 16y on the inner foot side is substantially vertical, while the outer foot side and the outer wall surface portion 16x are inclined at an acute angle.

The example of the embodiment of the present invention has been described in detail above. All of the above-described embodiments are merely specific examples for carrying out the present invention. The content of the embodiment does not limit the technical scope of the present invention, and many design changes such as modification, addition, and deletion of components are made within the scope of the invention defined in the claims. It is possible. In the above-described embodiment, the contents that can be changed in such a design are described with notations such as "in the embodiment" and "in the embodiment", but the contents are designed without such notations. It's not that changes aren't tolerated.

[Modification example]
Hereinafter, a modified example will be described. In the drawings and description of the modified examples, the same or equivalent components and members as those in the embodiment are designated by the same reference numerals. The description that overlaps with the embodiment will be omitted as appropriate, and the configuration different from the embodiment will be mainly described.

In the description of the embodiment, an example is shown in which the front side winding upper part 16f, the outer foot side winding upper part 16e, and the inner foot side winding upper part 16j are integrated, but these may be formed separately.

In the description of the embodiment, an example in which the sole 10 is integrally formed is shown, but the present invention is not limited to this. The sole 10 may be composed of a plurality of members such as an outsole, a midsole, and an insole, or may include a stabilizer. In particular, by providing the stabilizer on the outer foot side overhanging portion 20e, the repulsive force can be efficiently transmitted to the ground, so that the front-rear balance of the support range on the side surface of the foot can be further improved.

In the description of the embodiment, an example in which the inner foot side overhanging portion 20j is provided is shown, but the inner foot side overhanging portion 20j is not essential, and it is possible not to provide the inner foot side overhanging portion 20j.

In the description of the embodiment, an example in which the shoe 100 has a shoe tongue 60 and a shoelace is shown, but it is not essential to have these, and another tightening structure may be provided.

Each of the above-mentioned modifications has the same action / effect as that of the above-described embodiment.

Any combination of the above-described embodiment and modification is also useful as an embodiment of the present invention. The new embodiments resulting from the combination have the effects of each of the combined embodiments and variants.

The present invention is related to shoes and can be used for shoes.

10 sole, 12 sole lower surface, 12s ground contact surface, 14 sole upper surface, 16e outer foot side winding upper part, 16j inner foot side winding upper part, 18e outer foot side ridge line, 18j inner foot side ridge line, 18p, 18q top, 20e outside Foot side overhang, 20j inner foot side overhang, 100 shoes.

Claims

A sole and an upper provided above the sole are provided.
An upper part of the outer foot side winding that supports the side of the outer foot is provided on the upper surface of the sole.
A shoe characterized in that the upper part of the outer foot side winding extends upward in a corresponding region corresponding to at least the fifth metatarsal bone in the anterior-posterior direction of the shoe.
When the anterior-posterior length of this shoe is 100%, the top of the ridgeline of the upper part of the outer foot side winding in the range from the toe to 70% is formed posterior to the head of the fifth metatarsal bone in the corresponding region. The shoe according to claim 1.
An upper part of the inner foot side winding that supports the side of the inner foot is provided on the upper surface of the sole.
The shoe according to claim 1 or 2, wherein in the corresponding region, the ridgeline of the upper part of the inner foot side winding is formed lower than the ridgeline of the upper part of the outer foot side winding.
Any of claims 1 to 3, wherein the upper part of the outer foot side winding is provided in a range of at least 20% or more and 50% or less from the toes when the front-rear length of the shoe is 100%. The shoes listed in.
The sole has an outer foot-side overhang that projects in the width direction from the outer foot of the upper when viewed from above.
The shoe according to any one of claims 1 to 4, wherein the outer foot side overhanging portion is provided at least in the corresponding area.
The fifth aspect of the present invention, wherein in the corresponding region, the amount of protrusion of the outer foot side overhang from the outer foot of the upper is 3% or more with respect to the front-rear length of the shoe. Shoes.
In the corresponding region, the amount of widthwise protrusion of the inner foot side outer line of the sole from the inner foot portion of the upper is the amount of widthwise protrusion of the outer foot side protrusion portion from the outer foot portion of the upper. The shoe according to claim 5 or 6, characterized in that it is smaller or less than or equal to zero.
The shoe according to any one of claims 1 to 4, wherein the outer leg side overhang portion is provided in a range of 50% or less from the toe when the front-rear length of the shoe is 100%. ..
Any of claims 1 to 4, wherein the outer leg side overhang is provided in a range of at least 20% or more and 50% or less from the toes when the front-back length of the shoe is 100%. Shoes listed in the crab.
An upper part of the inner foot side winding that supports the side of the inner foot is provided on the upper surface of the sole.
A ground contact surface portion for contacting the ground is provided on the lower surface of the sole.
In the corresponding region, the widthwise protrusion dimension of the ground contact surface portion from the ridgeline of the outer foot side winding upper portion is larger than the width direction protrusion dimension of the ground contact surface portion from the ridgeline of the inner foot side winding upper portion. The shoe according to any one of claims 1 to 9.