JPWO2011004619A1 - Shoes with lace fitting structure - Google Patents

Abstract

A sole, an upper having a first opening and a second opening, and shoelace means; the upper between a first side edge having a plurality of first eyelets and a plurality of first eyelets A second side edge having one or more second eyelets that are disposed and engaged by shoelace means, both laterally across the second opening and obliquely longitudinally along the instep and orthogonal to the lateral direction And a movable part that allows the second eyelet to move relative to the first eyelet, covers an inner surface, an outer surface, a toe, an instep and a back surface of the foot, and includes the first side edge, and The second side edge and the main part excluding the movable part, and the second part is formed by a V-shaped portion of the shoelace means that engages with the second eyelet during the foot flat to the heel rise. The direction of the resultant force of the first and second tensile forces acting on the side edge is changed. Along to, shoe the second eyelet, characterized in that the relative displacement in both the lateral and oblique rear direction relative to the main portion through the movable portion.

Description

  The present invention relates to a shoe having a string fastening fitting structure.

  Shoelace fits the upper to the foot. The upper that fits the foot supports the foot.

  However, the shape of the foot changes when the MP joint is dorsiflexed, so the foot circumference also changes. In addition, when the shoes are worn for a long time, the foot circumference often increases. In such a case, the foot in the shoe will be squeezed by the upper. In addition, misalignment is likely to occur between the shoe and the foot during operation.

JP 2006-258 (Abstract) Japanese Patent Laid-Open No. 11-18803 (summary) Actual Kosho 33-5240 (Fig. 1) Reality No. 5-9843 (Fig. 3) EPO 329,392 A2 (abstract) Japanese Patent Laid-Open No. 4-44701 (upper right column on page 2) WO 2004/93587 A1, US 2006/0162190 A1 (abstract)

In the shoe of Document 1, a non-stretchable belt is fixed inside the stretchable upper, and the non-stretchable belt prevents the upper from stretching. In the shoe of this document 1, an eyelet (loop) is provided at the tip of the non-stretchable belt, and therefore the eyelet will not move in the circumferential direction of the foot during wearing.
In addition, the belts are connected to each other in the front-rear direction, and the tip of the belt is attached to the upper elastic member, so that the free displacement of the belt will be hindered.

  The shoe of Document 2 has a variable size in the foot length direction. In order to make the size in the foot length direction variable, in this shoe, a flexible cloth portion that is extendable in the front-rear direction of the upper is provided in the middle foot portion. The flexible cloth portion does not expand and contract in the circumferential direction. Therefore, since the eyelet provided on the flexible cloth portion does not move in the circumferential direction, the foot will be compressed during wearing.

The shoe of Document 3 has a wide elastic piece on the side of the forefoot. Wide stretch pieces may make it difficult to feel pressure on your feet. However, the wide elastic piece will not be able to support the side of the foot.
Also, because the eyelet decorations are back and forth, the eyelet will not move back and forth. Therefore, the free movement of the eyelet is prevented.

  The eyelet member of Literature 4 is made of a resin having a Shore hardness of 90-100. Resins with a Shore hardness of 90-100 will hardly stretch.

  The shoe of Document 5 supports the hind legs with a support stirrup that does not stretch.

  The shoe of Document 6 has a pair of side panels (tightening bands) sandwiched between the inner skin and outer skin of the upper. Each side panel may be composed of a rubber sheet or an elastic cloth, and each has three eyelets. The shoe of this document 6 aims to tighten and tighten the side panel in the circumferential direction according to the size of a person's foot circumference (peripheral length).

However, as described in the publication 6 (right column on page 1 and right lower column on page 2), the side panels connected by shoelaces do not move back and forth on the upper shell. It is intended to securely tighten the prescribed position of the instep, and the side panel is wide, so the eyelet formed on the side panel is not intended to move the foot in the front-rear direction at all It is considered that it does not move substantially.
Further, in the invention of this document 6, the side panel formed of a rubber sheet or stretchable cloth covers a wide portion of the side surface of the foot, and covers a portion behind the metatarsal bone. This will impair the wearer's support and support function of the wearer's foot.

  In the shoe of Document 7, an eyelet made of a loop is provided in the vicinity of the stretchable part. FIG. 5, it appears that the loop is connected to the expansion / contraction part. As can be seen from 3 to 6, the loop is provided in a hard part of the upper.

  For this reason, the eyelet composed of the loop of the same document cannot move in the circumferential direction.

  It is an object of the present invention to provide a shoe that supports the foot in a stable state and reduces pressure on the foot when the foot circumference changes and / or displacement between the shoe during operation and the foot.

  A shoe according to a first aspect of the present invention is a shoe having a lace fitting structure, for absorbing a landing impact, an upper for wrapping the instep, and for fitting the upper to the instep. The upper has a first opening in which a leg rises when landing, and a second opening provided in front of the first opening, and the two openings are The upper is provided along a side edge of the second opening, and a first side edge having a plurality of first eyelets through which the shoelace means passes and engages; A second side edge having one or more second eyelets disposed between and engaging the plurality of first eyelets, and in a transverse direction and a transverse direction across the second opening; Angled front and back, perpendicular and along the instep And a movable part that allows the second eyelet to move relative to the first eyelet, covers an inner side surface, an outer side surface, a toe, an instep and a back side of the foot, and includes the first side edge portion, and The second side edge portion and a main portion excluding the movable portion, and the second portion is formed by a V-shaped portion of the shoelace means that engages with the second eyelet during foot flat to heel rise. As the direction of the resultant force of the first tensile force and the second tensile force acting on the side edge portion changes, the second side edge portion including the second eyelet is transverse to the main portion via the movable portion. Further, it is characterized by being relatively displaced in an oblique front-rear direction.

Between the foot flat and the heel rise, the shape of the foot changes due to the dorsiflexion of the MP joint, and the two tensile forces acting on the shoe race change according to the change in the shape of the foot. The direction changes. With this change in the direction of the resultant force, the second eyelet is displaced forward or backward in the oblique front-rear direction via the movable part so that the direction of the resultant force becomes the lateral direction or approaches the lateral direction, Balance of power is maintained. At the same time, the second eyelet is displaced laterally, thereby suppressing a local increase in the tensile force acting on the shoe race.
In this way, the upper fits the foot without generating a large load on the second eyelet and the first eyelet close to the second eyelet.

  The shoe according to the second aspect of the present invention is a shoe having a string-fitting fitting structure for absorbing a landing impact, an upper wrapping the instep, and fitting the upper to the instep The upper has a first opening through which a leg rises when worn, and a second opening provided in front of the first opening, and the two openings are The upper is provided along the side edge of the second opening, the side edge having a plurality of first eyelets that the shoelace means passes and engages with, and the inside of the foot A side panel extending downward or obliquely downward from the second opening along the side surface or the outer surface and covering the inner surface or the outer surface of the foot; and the inner surface, the outer surface, the toe, the back and the back surface of the foot. Covering includes said side edges, and A main portion excluding the side panel, wherein the side panel has a second eyelet that is provided at a front end of the side panel and through which the shoelace means passes and engages, and is attached to the main portion. A leading end portion, a lower end portion attached to the main portion and / or the sole, and an intermediate portion disposed between the leading end portion and the lower end portion, 2 A split part that is movable relative to the main part in an oblique front-rear direction perpendicular to the lateral direction across the opening and along the upper surface of the instep, and the side edge part forming the first eyelet is divided forward and backward The side panel is disposed at a width of the side panel smaller than the width of the divided part in the width in the oblique front-rear direction, and the sheet-like member forming the divided part is the main part before and after the divided part. The Liable smaller or contracted in bending stiffness than members formed, the larger the bending rigidity of the member forming the side panel than the bending stiffness of the sheet-like member of said dividing portion.

Principle of the invention:
As the MP joint dorsiflexes during the period from foot flat to heel rise, the upper part of the upper bends in a “ku” shape (angle shape) and tries to shrink. At this time, the rigidity of the upper hinders the bending of the upper, and the second opening tends to expand so that the lateral width of the second opening increases as the upper deformation approaches the first opening.

Here, in the shoe of the second aspect, the sheet-like member of the divided portion is formed of a flexible member having a small bending rigidity or being easily contracted, and thus does not hinder the bending of the upper. Therefore, it is possible to suppress the lateral width of the second opening from expanding.
That is, it is difficult for the upper to expand, and therefore, the state in which the upper is fitted to the foot is maintained.

  The flexible member that is easy to shrink is a so-called elastic member in the form of a sheet, and a resin sheet or a rubber sheet that has rubber elasticity and repeatedly expands and contracts can be adopted.

On the other hand, the width of the side panel in the front-rear direction is smaller than that of the divided portion. Such a narrow side panel can be deformed relatively freely according to the bending of the foot or can follow the movement of the foot without being restricted by the movement of the main part of the front and rear upper part and the deformation of the divided part. Therefore, the second eyelet provided on the side panel can be freely displaced relative to the first eyelet. Therefore, the shoelace tightening force acts on the upper without causing an extra load on the foot.
Therefore, this shoe is suitable for exercise including running and walking for a long time.

In addition, the side portion of the foot is supported stably by the highly rigid side panel of the flexible divided portion.
As can be understood from the above principle, in the second mode, the second eyelet is relatively displaced in the front-rear direction with respect to the first eyelet, and therefore, it is not necessarily required to be relatively displaced in the circumferential direction and the lateral direction of the foot.

  In the present specification, the oblique front-rear direction perpendicular to the lateral direction and along the upper surface of the instep is a direction perpendicular to the lateral direction across the second opening and along the side edge of the second opening. The direction in which the eyelets are lined up is therefore oblique to the bottom surface of the sole.

  In the present invention, in order for the second eyelet to be displaced in both the lateral direction and the oblique front-rear direction with respect to the main part via the movable part, the movable part is composed of a stretchable elastic part. In addition, it may be composed of a non-stretchable side panel.

  In the present invention, the term “shoelace means” means including not only one shoelace but also two or more shoelaces.

In the present invention, the term “eyelet” means the hole itself through which the shoelace passes.
Therefore, the “eyelet” of the present invention includes a through-hole formed by an eyelet member made of a loop material, and an eyelet formed by an eyelet member made of a U-shaped metal fitting or resin.

  In the present invention, the stretchable portion that easily stretches includes a plurality of circular, oval, and rectangular through holes in a material that does not inherently stretch, in addition to a rubber-elastic sheet or belt-like member having a small Young's modulus. May be formed in a single row, two rows, or a zigzag shape and exhibit elasticity (easy to deform). Further, the stretchable part may be formed by overlapping two sheet-like members having stretchability.

  In the present invention, the main part that is harder to expand and contract than the expansion / contraction part may be restrained from essentially expanding and contracting by restricting the elastic mesh material with a non-stretchable tape material.

FIG. 1 is a schematic perspective view showing a shoe of a first embodiment of the present invention. FIG. 2 is a schematic perspective view showing the shoe in a dorsiflexed state in which the shoe of the embodiment is worn and the heel is raised. FIG. 3 is a schematic side view showing the relationship between the shoe and the skeleton of the foot as viewed from the inside of the foot. FIG. 4 is a schematic side view showing the relationship between the shoe and the skeleton of the foot as viewed from the outside of the foot. FIG. 5 is a schematic perspective view of the inside of the shoe of the embodiment as viewed from the inside of the foot. FIG. 6 is a schematic perspective view of the inside of the shoe of the embodiment as viewed from the outside of the foot. FIG. 7 is a schematic side view of the shoe of the embodiment as viewed from the inside of the foot. FIG. 8 is a schematic side view showing the shoe in a dorsiflexed state in which the shoe of the same example is worn and the heel is raised. FIG. 9 is a cross-sectional view of the upper shown by cutting the shoe of this embodiment at a site including the second eyelet and the side panel. FIG. 10 is a schematic perspective view showing the shoe of the second embodiment. FIG. 11 is a cross-sectional view of the upper shown by cutting the shoe of this embodiment at a site including the second eyelet and the side panel. FIG. 12 is a schematic perspective view showing a shoe of a third embodiment of the present invention. FIG. 13: is a schematic side view which shows the relationship between the shoes of the Example, and the frame | skeleton of a foot | leg in the state seen from the inner side of the foot | leg. FIG. 14 is a schematic side view showing the relationship between the shoe and the skeleton of the foot as viewed from the outside of the foot. FIG. 15A is a cross-sectional view of the upper shown by cutting the shoe of the embodiment at a portion including the second eyelet and the stretchable portion, and FIG. 15B is a cross-section of the shoe of the embodiment at a portion including the reinforcing material and the stretchable portion. It is a cross-sectional view of the upper shown. FIG. 16 is a schematic perspective view showing a shoe according to a fourth embodiment of the present invention as viewed from the inner front side. FIG. 17 is a schematic perspective view showing the shoe of the same embodiment as viewed from the outer front side. FIG. 18 is a schematic side view showing the relationship between the shoe and the skeleton of the foot as viewed from the inside of the foot. FIG. 19 is a schematic side view showing the relationship between the shoe and the skeleton of the foot as viewed from the outside of the foot. FIG. 20A is a cross-sectional view of the upper shown by cutting the shoe of the same embodiment at the stretchable portion including the second eyelet, and FIG. 20B is the shoe of the same embodiment cut at the stretchable portion including the reinforcing portion. It is a cross-sectional view of the upper shown. 21A, 21B, and 21C are graphs showing the relationship between the amount of increase H of the heel and the amount of change ΔD in the distance between eyelets in the shoes of Test Examples 1, 2, and 3, respectively. 22A and 22B are graphs showing the relationship between the amount of increase H of the heel and the amount of change ΔD in the distance between eyelets in the shoes of Test Example 4 and Comparative Example, respectively. 23A, FIG. 23B, FIG. 23C, FIG. 23D, FIG. 23E, FIG. 23F, and FIG. 23G are planes showing portions corresponding to the second eyelets of Test Examples 11, 12, 13, 14, 15, 16, and 17, respectively. FIG. FIG. 24 is a chart showing the results of the sensory test. FIG. 25A, FIG. 25B, FIG. 25C, and FIG. 25D are graphs showing the relationship between the amount of increase H of the heel and the amount of change ΔD of the distance between eyelets for the shoes of Test Examples 11, 12, 17, and 16, respectively. . FIG. 26A and FIG. 26B are an inner side view and an outer side view showing the positional relationship between the eyelet and the foot skeleton in the shoes used in Test Examples 11 to 17, respectively. FIG. 27 is a plan view conceptually showing the movement of the eyelet and shoelace according to the fifth embodiment. FIG. 28 is a schematic perspective view showing a shoe of a fifth embodiment of the present invention. FIG. 29 is a schematic perspective view showing the shoe in a dorsiflexed state in which the shoe of the same example is worn and the heel is raised. FIG. 30 is a partially cutaway schematic side view showing the relationship between the shoe and the foot skeleton in the same embodiment as seen from the inside of the foot. FIG. 31 is a partially cutaway schematic side view showing the relationship between the shoe and the foot skeleton in the same embodiment as viewed from the outside of the foot. FIG. 32 is a schematic perspective view of the inside of the shoe of the embodiment as viewed from the inside of the foot. FIG. 33 is a foot flat schematic side view of the shoe of the embodiment as viewed from the inside of the foot. FIG. 34 is a schematic side view showing a shoe in heel rise in which the shoe of the embodiment is worn and the heel is raised. FIG. 35 is a schematic side view of the foot flat when the shoe of the embodiment is viewed from the outside of the foot. FIG. 36 is a schematic side view showing a shoe in a heel rise in which the shoe of the same example is worn and the heel is raised. FIG. 37A is a schematic cross-sectional view of the upper shown by cutting the shoe of the same embodiment at a portion including a divided portion, and FIG. 37B is a plan sectional view of the upper shown by cutting the shoe of the same embodiment at a portion including a divided portion. It is. 38A, 38B, and 38C are schematic side views of the shoe of the same embodiment from the foot flat to the heel rise as seen from the inside, and FIGS. 38D, 38E, and 38F respectively show the deformation of the divided portion. It is a schematic side view which shows a mode. 39A and 39B are an inner side view and an outer side view schematically showing the relationship between the divided portion and the side panel, respectively, and FIGS. 39C and 39D are conceptual views showing how the yarns constituting the inner skin and the outer skin are deformed. FIG. 39E is a perspective view showing an example of the side panel. FIG. 40 is a graph showing the relationship between the amount of increase H of the heel and the amount of change ΔD in the distance between eyelets in the shoe of Test Example 20. 41A and 41B are a conceptual front view and a plan view showing the structure of the second eyelet according to the sixth embodiment.

  In the first aspect of the present invention, one of the first eyelets is adjacent to the front of the second eyelet in the oblique front-rear direction, and the rear of the second eyelet is in the oblique front-rear direction. Another one of the first eyelets is preferably adjacent.

The reason is that if the movable second eyelets are adjacent to each other in the diagonally front-rear direction, the foot support at those parts may become unstable.

  In this case, the plurality of first eyelets include first eyelets adjacent to each other in the oblique front-rear direction, and the second eyelets and the first eyelets are more than a first distance between the first eyelets adjacent to each other in the oblique front-rear direction. Preferably, the second distance to the front first eyelet is large, and the third distance from the second eyelet to the first eyelet behind the second eyelet is larger than the first distance.

In this case, the second eyelet provided on the movable part is disposed at a position away from the front and rear first eyelets, and the angle formed by the V-shaped shoelace is relatively large. Therefore, when the second eyelet approaches the first and / or rear first eyelet, the distance to the opposite eyelet across the second opening varies greatly. Thereby, the tensile force which acts on the said V-shaped shoelace changes a lot.

  In the first aspect, the inner side surface or the outer side surface of the foot extends obliquely rearward and downward from the second opening along the inner side surface or the outer side surface of the foot in the space inside or outside the main portion. A side panel that covers the second eyelet and the movable portion, and the first side edge portion on which the first eyelet is formed is divided at the front and rear of the side panel to form a divided portion. Preferably, the side panel is formed in the main portion, and the side panel is disposed in the divided portion.

Although the side edge portion forming the eyelet has high rigidity, the main eyelet is easily bent by being divided, and the second eyelet is easily displaced back and forth.

  In this case, a front gap is formed between the front edge of the divided portion and the front edge of the side panel to allow the side panel extending obliquely rearward and downward to approach forward. Thus, it is preferable that the second eyelet provided on the side panel can be moved relative to the first eyelet forward in the oblique front-rear direction and in the lateral direction.

  By forming the front gap, the side panel can be relatively displaced toward the front edge of the divided portion and approach.

  On the other hand, a rear gap is formed between the rear edge of the divided portion and the rear edge of the side panel to allow the side panel extending obliquely rearward and downward to approach rearward. Thus, it is preferable that the second eyelet provided on the side panel is movable rearward in the oblique front-rear direction and in the lateral direction.

  By forming the rear gap, the side panel can be displaced while being deformed toward the rear edge of the divided portion.

  In these cases, it is more preferable that the gap increases as it approaches the second opening from the upper surface of the sole. In these cases, the entire side panel may approach the front edge or the rear edge, and the displacement of the second eyelet may increase.

  When the side panel constitutes a movable portion, the divided portion is formed in a pocket shape having an inner skin and an outer skin, and the inner skin and the outer skin are separated from each other in the lateral direction at the front edge and the rear edge of the divided portion. It is preferable.

Since the inner and outer skins that are laterally separated from each other do not strongly sandwich the side panel, it is difficult to prevent the side panel from moving back and forth.

When the side panel constitutes a movable portion, the sheet-like member forming the divided portion has a bending rigidity smaller than the bending rigidity of the member forming the main portion before and after the divided portion, or is easily contracted. It is preferable that the bending rigidity of the member forming the side panel is larger than the bending rigidity of the sheet-like member formed of the member.

As will be described later in detail in the second aspect, the member having low bending rigidity is likely to be wrinkled. Therefore, when the MP joint is bent back, the divided portion is deformed or contracted, so that the upper is easily bent. It will be possible to suppress the expansion of the inner and outer surfaces.

  In this case, it is preferable that the sheet-like member that forms the inner skin of the divided portion is thinner than the member that forms the main portion before and after the divided portion.

  Thin endothelium is easy to deform and will not thicken when deformed.

  In the case of having the side panel in the first aspect, one or more second eyelets are provided at a position between the head of the first metatarsal bone inside the foot and the bone bottom, and the inside of the foot It is preferable that the second eyelet is not provided at a site behind the metatarsal bone bottom and a site ahead of the metatarsal bone head.

The position between the head of the metatarsal bone and the base of the bone is large when the MP joint is bent back. Therefore, the provision of the second eyelet at this site will reduce the displacement between the shoe and the foot.
Moreover, the 2nd eyelet is provided only in the site | part of the metatarsal bone, and is not provided in the other site | part. Therefore, the function of the upper that stably supports the foot will not be easily lost.

  In the case of having the side panel in the first aspect, the divided portion is formed in a pocket shape having an inner skin and an outer skin, the inner skin is in contact with the inner surface of the side panel, and the inner surface of the inner skin is in contact with the side surface of the foot. It is preferably smoother than the inner surface of the main part.

  The smooth inner surface of the endothelium has little friction with the side of the foot and easily contracts or deforms. Therefore, the upper is easily deformed according to the bending of the foot.

  When it has a side panel in the 1st mode, it is preferred that the outer surface of the inner skin which touches the outer surface of the side panel and the inner surface of the outer skin are smoother than the outer surface of the main part.

The inner and outer skin surfaces that contact the side panel are smooth, so that free deformation and relative displacement of the side panel are difficult to be hindered.

In the case of having the side panel in the first aspect, the divided portion extends from the upper surface of the sole to the second opening along an oblique direction upward as it goes forward, and the inner skin and the outer skin extend in the oblique direction. It is preferably formed of a woven fabric, a knitted fabric, or a mesh-like sheet (sheet-like member).
Here, the mesh-like sheet-like material may be a porous sheet that is easy to extend diagonally, because it is formed in a mesh shape, and is easy to extend obliquely. In addition to those having holes, those in which a large number of holes are formed in a resin sheet, and those in which holes are formed after coating a resin on a fabric are included.

Woven fabrics, knitted fabrics, and mesh-like sheet materials are easier to obtain a smoother surface than non-woven fabrics and have good air permeability. Further, these sheet-like materials are easily sheared and deformed in a plane along the plane of the sheet. Therefore, the inner skin and outer skin made of these sheet-like materials will easily follow the deformation of the foot.

  In the case of having the side panel in the first aspect, the side panel includes a lower end fixed to the sole, a tip forming the second side edge, the lower end, and the second side edge. It is preferable that the intermediate portion and the second side edge portion are connected to the sole only through the lower end portion.

  The side panel is fixed to the sole at the lower end, and is not fixed to the upper at the middle. Therefore, the side panel can be freely deformed and displaced over a long region of the intermediate part and the tip part. Therefore, the displacement of the second eyelet formed at the tip portion in the oblique front-rear direction can be increased.

  In the second aspect, one or more second eyelets are provided at a position between the bone head and the base of the first metatarsal bone on the inner side of the foot, and the metatarsal bone is located on the inner side of the foot. It is preferable that the second eyelet is not provided in a site behind the bone bottom and a site ahead of the metatarsal head.

The upper has a large shrinkage at the time of dorsiflexion of the MP joint in a region between the head of the metatarsal bone and the bone bottom. Therefore, if the second eyelet is provided at this portion, the second eyelet will follow the movement of the foot and reduce the displacement between the shoe and the foot.
Moreover, the 2nd eyelet is provided only in the site | part of the metatarsal bone, and is not provided in the other site | part. Therefore, the function of the upper that stably supports the foot will not be easily lost.

  The said 2nd aspect WHEREIN: It is preferable that the sheet-like member of the said division part is thinner than the member which forms the said main part before and behind the said division part.

  Thin endothelium is easy to deform and will not thicken when deformed.

  In the second aspect, the divided part is formed in a pocket shape having an inner skin and an outer skin, the inner skin is in contact with the inner surface of the side panel, and the inner surface of the inner skin is in contact with the side surface of the foot. It is preferably smoother than the surface.

The smooth inner surface of the endothelium has little friction with the side of the foot and easily contracts or deforms. Therefore, the upper is easily deformed according to the bending of the foot.

  2nd aspect WHEREIN: It is preferable that the outer surface of the said inner skin which contact | connects the surface of the said side panel, and the inner surface of the said outer skin are smoother than the outer surface of the said main part.

The inner and outer skin surfaces that contact the side panel are smooth, so that the free deformation of the side panel is not hindered.

  In the second aspect, the divided portion extends from the upper surface of the sole to the second opening along an oblique direction that goes upward as it goes forward, and the inner skin and the outer skin can extend in the oblique direction, It is preferably formed of a knitted fabric or a mesh-like sheet.

Woven fabrics, knitted fabrics, and mesh-like sheet materials are easier to obtain a smoother surface than non-woven fabrics and have good air permeability. Further, these sheet-like materials are easily sheared and deformed in a plane along the plane of the sheet. Therefore, the inner skin and outer skin made of these sheet-like materials will easily follow the deformation of the foot.

  In the second aspect, it is preferable that a lower end portion of the side panel is fixed to the sole, and the intermediate portion and the distal end portion are connected to the sole only through the lower end portion.

  The side panel is fixed to the sole at the lower end, and is not fixed to the upper at the middle. Therefore, the side panel can be freely deformed and displaced over a long region of the intermediate part and the tip part. Therefore, the displacement of the second eyelet formed at the tip portion in the oblique front-rear direction can be increased.

  In this case, between the front edge of the divided portion and the front edge of the side panel, the side panel extending obliquely forward from the sole toward the second opening is formed at the front edge of the divided portion. A front gap that allows approaching toward the front is formed, whereby the second eyelet provided on the side panel can move relative to the first eyelet in the obliquely front-rear direction. preferable.

  By forming the front gap, the side panel can be relatively displaced toward the front edge of the divided portion.

  On the other hand, between the rear edge of the divided portion and the rear edge of the side panel, the side panel extending obliquely forward from the sole toward the second opening faces the rear edge of the divided portion. It is preferable that a rear gap that allows approach is formed, whereby the second eyelet provided on the side panel is relatively movable rearward in the oblique front-rear direction.

  By forming the rear gap, the side panel can be displaced while being deformed toward the rear edge of the divided portion.

  In a preferred embodiment of the present invention, the second eyelet is disposed only in a region from the first intercostal intercostal joint (a so-called MP joint) to the fourth Lisfranc joint in the front-rear direction of the foot. .

In this case, the region has a great influence on the fitting performance of the upper. Therefore, when the second eyelet is disposed in such a region, the fitting performance of the upper will be enhanced.
In this case, the second eyelet is not disposed in front of the MP joint of the first rod or behind the Lisfranc joint of the fourth rod. Therefore, there is no possibility that the support of the foot by the upper becomes unstable.

  In a further preferred embodiment, the second eyelet inside the foot is posterior to the joint of the first metatarsal interphalangeal joint and is located in front of the bone bottom of the metatarsal bone of the first heel. The outer second eyelet is arranged only at a position behind the metatarsal joint of the fourth heel and in front of the bone bottom of the metatarsal bone of the fourth heel. .

In this invention, when a 2nd eyelet is arrange | positioned in this position, a pair of 2nd eyelet moves to the diagonal front-back direction.
This movement will prevent the change in tension of the shoelace means engaging the second eyelet from increasing. Therefore, the upper fit will be high.
Further, when the second eyelet is not disposed in any position other than the above position, the foot support is less likely to become unstable.

  In a preferred embodiment of the present invention, one or two second eyelets are provided on the inner side of the foot, and three or more are not provided, and one or two second eyelets are provided on the outer side of the foot. It is provided, and three or more are not provided.

If three or more second eyelets are provided on the inner side or the outer side of the foot, the width of the divided portion is increased, resulting in unstable foot support or increased costs. Therefore, it is preferable that the number of the second eyelets is 2 or less for one of the inside and outside of the foot.
Further, the second eyelet loosens upper tightening by shoelace. Therefore, it is preferable that the number of the second eyelets is smaller than the number of the first eyelets.
Further, it is presumed that the number of the second eyelets is preferably only one on each of the inside and outside of the foot.
From this point of view, it would be preferable that the first eyelets are arranged so as to face each other in each of the front half and the rear half of the second opening in the front-rear direction.
Also, the first eyelet stabilizes the holding of the foot. Therefore, a plurality of the second eyelets may be provided on the inner side or the outer side, and the first eyelets may be provided between the plurality of second eyelets on the inner side or the outer side.

  In this aspect, the side panel is provided in the space inside or outside the main part.

  In the present invention, the space inside the main part means a space defined by the main part, which means a space inside the main part exterior material, and when there is an interior material, the interior material and the exterior material Including the space between. Therefore, when the main part has an exterior material and an interior material, each panel may be arranged between the interior material and the exterior material. That is, the present invention includes a case where each panel is in contact with the side surface of the foot or the instep through the interior material.

  In the present invention, when a side panel is provided in a space outside the main part, the side panel wraps around the side of the foot via the main part.

  In this aspect, it is preferable that the second eyelet is disposed only in a region from the MP joint of the first heel to the Lisfranc joint of the fourth heel in the front-back direction of the foot.

  The invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings, in which: However, the examples and drawings are for illustration and description only, and the scope of the present invention is defined by the claims. In the accompanying drawings, the same part numbers in a plurality of drawings indicate the same or corresponding parts.

First embodiment:
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
In the following description, a shoe for the left foot is exemplified. Further, in the following drawings, the arrow OUT indicates the outward direction of the foot, and the arrow IN indicates the inward direction of the foot.

Overall structure of the shoe:
A shoe having a string fastening fitting structure shown in FIG. 1 includes a sole 1, an upper 2, and a shoe race 3.
The sole 1 absorbs the impact of landing. The upper 2 wraps around the instep and has a tongue piece 4 (a part of the main part). The shoelace 3 is for fitting the upper 2 to the instep.
In FIG. 1 and FIG. 2, both end portions of the shoelace 3 are not shown, but after inserting a foot into the upper 2, the end portions are firmly connected to each other. By connecting the ends of the shoelaces 3 to each other, the upper 2 can be fitted tightly to the foot.
Each end portion of the shoelace 3 may be firmly fixed to a fixture provided on the upper 2.

The upper 2 includes a first opening P1 and a second opening P2. The first opening P1 is an opening through which the leg Le goes upward Z1 when worn.
As shown in FIGS. 3 and 4, the second opening P <b> 2 is an opening provided in front of the first opening P <b> 1, that is, toward the toe T of the foot. The second opening P <b> 2 is formed in the upper portion of the upper 2 so as to be long in the oblique front-back direction Y. The two openings P1 and P2 are connected to each other. The tongue piece 4 closes the second opening P2 from below Z2 and covers the instep Is from above.

Upper 2:
5 and 6, the upper 2 includes a main upper (main portion) 2M, a first side edge portion 20, and first and second side panels 51 and 52 (an example of a movable portion).

Main upper 2M;
The main upper 2M covers the inner surface S1 of the foot in FIG. 3, the outer surface S2 in FIG. 4, the toe T, the upper Is, and the back surface B. The main upper 2M is formed with the first opening P1 and the second opening P2, and includes the tongue piece 4 connected to the toe portion at the front end of the second opening P2.

  The side edge portion 20 is provided so as to surround the second opening P2 along the side edge of the second opening P2. The side edge portion 20 has a plurality of first eyelets H1 through which the shoelace 3 passes and engages. The side edge portion 20 is formed of a material that does not essentially stretch, such as artificial leather or a tape material. The first eyelet H <b> 1 is a small hole formed in the side edge portion 20.

On the inner and outer side surfaces 21 and 22 of the main upper 2M, as clearly shown in the inner side views of FIGS. 7 and 8, for example, a large number of tape materials are provided on the surface of the mesh member constituting a part of the main upper 2M. 2t is sewn. These tape materials 2t are formed of a material that does not essentially stretch, whereby the inner side surface 21 of the main upper 2M and the outer side surface 22 of FIG. Essentially does not extend to R.
The tape material 2t has a well-known structure, and is not shown or simplified in FIGS.

In FIG. 9, each of the side panels 51 and 52 has a second eyelet H2. Each of the side panels 51 and 52 has a front end portion (second side edge portion) 53, a lower end portion 54 fixed to the sole 1 and the main upper 2M, and an intermediate portion 55 (movable) between the front end portion 53 and the lower end portion 54. An example of a unit).
The distal end portion 53 is connected to the main upper 2M and the sole 1 only through the intermediate portion 55 and the lower end portion 54. The lower end 54 may be sewn to the main upper 2M without being fixed to the sole 1.

  In the front end portion 53, an eyelet member 53 a is sewn to a tape material constituting a part of the side panels 51 and 52. 1 to 8, the portions of the side panels 51 and 52 where the eyelet member 53a is not provided are provided with halftone dots.

The second eyelet H2 is a small hole formed in the distal end portion 53 and the eyelet member 53a, and the shoelace 3 in FIG.
In FIG. 1, the first eyelet H1 and the second eyelet H2 are subscripted in order from the front to the rear in order to distinguish the position of the eyelet in the oblique front-rear direction Y. In the explanation of the examples and in FIG.
In this specification, the oblique front-rear direction Y is a direction orthogonal to the lateral direction X crossing the second opening P2 and substantially parallel to the direction in which the eyelets H1, H2 are arranged. It becomes diagonally forward and diagonally backward.

The first side panel 51 of FIG. 3 is formed in a band shape, and in the space inside the main upper 2M, the upper side of the foot is directed upward or obliquely upward (obliquely upward as it goes forward) along the inner side surface S1. It winds around the inner surface S1 and covers a part of the inner surface S1.
The second side panel 52 of FIG. 4 is formed in a band shape, and wraps around the outer side surface S2 of the foot in the space inside the main upper 2M along the outer side surface S2 upward or obliquely upward. Cover part of S2.

The intermediate portion 55 is disposed between the distal end portion 53 and the lower end portion 54, and is not attached to the main upper 2M as clearly shown in FIGS. Accordingly, the intermediate portion 55 allows the front end portion 53 to move in the oblique front-rear direction Y with respect to the lower end portion 54. On the other hand, the intermediate portion 55 of each side panel 51, 52 constitutes an expansion / contraction portion (movable portion), and the length from the front end portion 53 to the lower end portion 54 is increased as will be described below. It expands and contracts.
In the case of the present embodiment, when the intermediate portion 55 extends, the second eyelet H2 ₃ becomes the first eyelet H1 of the main upper 2M in both the lateral direction X of FIG. 1 and the rearward direction Y2 of the oblique front-back direction Y of FIG. It is displaced relatively.

Here, the tape material and the eyelet member 53a of each of the side panels 51 and 52 are formed of a material that does not essentially extend.
However, as shown in FIGS. 3 and 4, a plurality of circular through holes 55 h are formed in a staggered manner in the intermediate portion 55 of each of the side panels 51 and 52 in FIG. 5. When a large tensile force is applied in the direction in which the side panels 51 and 52 extend, the shape of the through hole 55h changes to an elliptical shape, and the intermediate portion 55 extends in the circumferential direction R of the foot (FIGS. 1 and 2). extend. In this embodiment, the second eyelet H2 ₃ by the intermediate portion 55 extends in the circumferential direction R of the foot is displaced in the transverse direction X with respect to the main upper 2M (FIGS. 1 and 2).

Second eyelet H2 of the inner 3 is arranged in the region of the MP joint MP ₁ of the first toe f1 to Lisfranc joint LJ the first toe f1. Preferably, in the metatarsal B4 ₁ condyle B4 ₁ than h rear Y2 of the second eyelet H2 is first toe f1 of the inside of the foot 3, and metatarsal B4 ₁ of the first toe f1 It will be disposed in front Y1 than bone bottom B4 ₁ b.
On the other hand, in metatarsal B4 ₄ condyle B4 ₄ than h rear Y2 of the second eyelet H2 fourth toe f4 of the outer 4 and metatarsal B4 ₄ bone bottom of the fourth toe f4 It is preferable to be arranged at the position of the front Y1 rather than B4 ₄ b.
As shown in FIGS. 3 and 4, it is preferable to provide at least a pair of inner and outer first eyelets H1 on the front Y1 of the second eyelet H2, and it is more preferable to provide a plurality of pairs of first eyelets H1.
Further, it is preferable to provide at least a pair of inner and outer first eyelets H1 at the rear Y2 of the second eyelet H2, and it is more preferable to provide a plurality of pairs of first eyelets H1.
The upper is tightened by the shoe race inserted through the first eyelet H1, thereby stabilizing the support.

The first side panel 51 shown in FIG. 3 narrows and extends toward the upper front obliquely from the lower end 54 to the tip 53. In the intermediate section 55 rearward Y2 than metatarsal B4 ₁ condyle B4 ₁ h of the first toe f1 of the first side panel 51, and metatarsal B4 ₁ Bone bottom B4 ₁ of the first toe f1 It is disposed along a portion of the front Y1 (metatarsal B4 ₁ of the bones of the first toe f1) than b.

On the other hand, the second side panel 52 shown in FIG. 4 narrows and extends toward the upper front obliquely from the lower end 54 toward the front end 53. The intermediate portion 55 of the second side panel 52 at metatarsal B4 ₄ condyle B4 ₄ than h rear Y2 of the fourth toe f4, and bone bottom B4 ₄ metatarsal B4 ₄ of the fourth toe f4 It is arranged along the part of the front Y1 from b (the bone body of the metatarsal bone B4 ₄ of the fourth rib f4).

  Second Embodiment: FIGS. 10 and 11 show a second embodiment.

  In the second embodiment, the main upper 2M has a bag-shaped storage portion 29 that stores the intermediate portion 55 (movable portion) of the side panels 51 and 52. The front end portions 53 of the side panels 51 and 52 protrude from the housing portion 29.

  The inner and outer side surfaces 21 and 22 of the main upper 2M in FIG. 11 are formed by stitching together a surface material 23 and a back surface material 24 as shown in FIG. The accommodating portion 29 is formed between the two members 23 and 24 sewn together.

  Each of the side panels 51 and 52 is formed in a strip shape along the shape of the accommodating portion 29.

As in the first embodiment, the side panels 51 and 52 may have an expansion / contraction portion in which a through hole 55h is formed in the intermediate portion 55, or instead of forming the through hole 55h. It may be formed of a resin tape having rubber elasticity.
“Rubber elasticity” means a property that can be repeatedly expanded and contracted (elastically deformed) without causing large plastic deformation like vulcanized rubber.

  The other configurations of the second embodiment are the same as those of the first embodiment, and the same reference numerals are given to the same or corresponding portions, and the description thereof is omitted.

Third embodiment:
Next, a third embodiment will be described with reference to FIGS.

  In the third embodiment, the first eyelet H1 is provided at the first side edge 20A of the main upper 2M, while the second eyelet H2 is provided at the second side edge 20B continuous with the main upper 2M. The eyelet member 53b that forms a part of the second side edge portion 20B is surrounded by the stretchable portion 5 (an example of a movable portion).

  12 to 14, halftone dots are applied to the stretchable part 5. The pair of inner and outer extensible parts 5 and 5 are opposed to each other with the second opening P2 in between.

  A cutout 25 is formed in the main upper 2 </ b> M that does not essentially expand and contract, and the expansion / contraction part 5 is provided at a portion of the cutout 25. The eyelet member 53b shown in FIG. 15A is sewn on the members 57 and 58 constituting the stretchable part 5, and the members 57 and 58 and the eyelet member 53b are overlapped on the second side edge part 20B. And is connected to the main upper 2M only through the stretchable part 5.

  That is, the expansion / contraction part 5 in FIG. 12 surrounds the periphery of the second side edge 20B, and when the expansion / contraction part 5 is the sea and the main upper 2M is the land, the second side edge 20B is the land. It is arranged like an island with respect to 2M. That is, the second side edge portion 20B is connected to the main upper 2M only through the stretchable portion 5.

The main upper 2M of hard stretch than the stretch unit 5 covers the Lisfranc joint LJ and metatarsal bones bottom B4 ₅ b of the fifth toe f5 outside of the foot of FIG. 14, the main upper 2M of FIG. 13 The inside of the foot covers the bone bottom B4 ₁ b and the head B4 ₁ h of the metatarsal bone of the first heel f1.

  As clearly shown in FIGS. 13 and 14, in the present embodiment, the stretchable portion 5 does not extend to the sole 1, and the main upper 2 </ b> M is continuous in the oblique front-rear direction Y below the stretchable portion 5. Therefore, even if the stretchable part 5 is an easily stretchable member, and the two stretchable parts 5 and 5 are arranged at positions facing each other, the foot support is stable.

The main upper 2M may cover only _one of the bone base B4 ₁ b or the head B4 ₁ h of the metatarsal bone of the first heel on the inner side of the foot with a non-expandable member and the other with an elastic member. Good.

  As shown in FIG. 15A, for example, the stretchable part 5 may be sewn on a tape material 2t in which a stretchable mesh-shaped cloth 58 and a resin sheet 57 having rubber elasticity do not stretch.

The stretchable part 5 of FIG. 14 includes a first part 50 that reinforces the stretchable part 5 before and after the second side edge part 20B, and a second part 59 that includes the stretchable part 5 other than the first part 50. The first portion 50 is curved along the side edge of the stretchable portion 5 and is recessed as if it was cut out. As shown in FIG. 15B, the first portion 50 is formed by adhering and sewing a reinforcing material 50 a on the resin sheet 57. The curved reinforcing member 50a of the first portion 50 is formed of a material that is less likely to extend than the second portion 59, but it can extend in a straight line in the oblique front-rear direction Y or shrink due to an increased curvature. Yes, and constitutes a part of the first part 50. Therefore, the curved first portion 50 prevents the second side edge portion 20B from moving in the oblique front-rear direction Y and allows the second eyelet H2 to move in the oblique front-rear direction Y with a small force. Is done. Therefore, the second eyelet H2 is allowed to move in the oblique front-rear direction Y and the circumferential direction R.
The second portion 59 can extend and contract in both the oblique front-rear direction Y and the circumferential direction R.

In FIG. 12, when the foot is bent, the second side edge 20B can move in the circumferential direction R (not shown) of the foot with respect to the main upper 2M, in the front Y1 and the rear Y2 in the oblique front-back direction Y. The first part 50 and the second part 59 of the stretchable part 5 are more easily stretched than the side edge parts 20A, 20B and the main upper 2M, and the circumferential direction of the second side edge part 20B when the foot is bent. In the vicinity, that is, the second part 59 can be expanded and contracted in the circumferential direction R of the foot and the oblique front-back direction Y, and the first part 50 is obliquely forward and backward in the front Y1 and the rear Y2 of the second side edge 20B. It is arranged in a state that can be expanded and contracted in the direction Y.
It is not necessary to provide the reinforcing material 50a that forms the first portion 50.

  Other configurations of the third embodiment are the same as those of the first embodiment, and the same reference numerals are given to the same portions or corresponding portions, and the description thereof is omitted.

Fourth embodiment:
Next, a fourth embodiment will be described with reference to FIGS.

In the fourth embodiment, the first eyelet H1 is provided on the first side edge portion 20A of the main upper 2M, while the second eyelet H2 is the outer elastic portion 5B (outside of the inner and outer elastic portions 5A, 5B). An example of the movable part).
In addition, the halftone dot is given to the site | part of the expansion-contraction parts 5A and 5B.

In the inside of the leg of Figure 18, the main upper 2M excluding the stretchable portion 5A, that is, expansion and contraction section 5A, the main upper 2M hardly elongation than 5B bone bottom B4 ₁ b and head of metatarsal first toe f1 B4 ₁ h is covered. On the other hand, the main upper 2M covers the Lisfranc joint LJ and the metatarsal bone base B4 ₅ b of the fifth heel f5 on the outer side of the foot in FIG.

  As shown in FIG. 16, the extension / contraction part 5A and the extension / contraction part 5B are disposed at positions oblique to each other across the second opening P2. Each of the stretchable parts 5A and 5B shown in FIGS. 17 and 18 crosses the inner and outer side surfaces of the upper 2.

As shown in FIGS. 18 and 19, a first portion 50 is provided at the upper ends of the telescopic portions 5 </ b> A and 5 </ b> B. Since the first part 50 of the stretchable part 5B is configured in a curved shape, the first part 50 can be linearly extended in the oblique front-rear direction Y or can be contracted due to a large curvature, and the second side edge part. 20B is allowed to move in the oblique front-rear direction Y, and the second side edge portion 20B is hardly prevented from moving in the circumferential direction R (not shown).
Thereby, the second eyelet H2 is easier to move in the circumferential direction R (lateral direction X) than in the oblique front-rear direction Y.

  The other configurations of the fourth embodiment are the same as those of the first embodiment, and the same reference numerals are given to the same or corresponding portions, and the description thereof is omitted.

Next, in order to clarify the effect of the present invention, test results of tests and comparative examples are shown.
First, the shoes of Test Examples 1 to 4 and Comparative Examples shown below were prepared.

  Test Example 1 A shoe of Example 1 shown in FIGS. 1 to 9 was prepared, and this shoe was designated as Test Example 1.

  Test Example 2: The shoe of Example 2 shown in FIGS. 10 and 11 was prepared, and this shoe was designated as Test Example 2. In Test Example 2, a relatively low rigidity material was used for the side panel.

  Test Example 3 A shoe of Example 2 shown in FIGS. 10 and 11 was prepared, and this shoe was designated as Test Example 3. In Test Example 3, a material having relatively high rigidity and rubber elasticity was used for the side panel, and through holes were formed in a staggered pattern in the side panel.

  Test Example 4: The shoe of Example 4 shown in FIGS. 16 to 20 was prepared, and this shoe was designated as Test Example 4.

  Comparative Example: In Example 3 shown in FIG. 12 to FIG. 15, a woven fabric that does not essentially extend is lined on the back surface of the elastic material at the site corresponding to the elastic part, and this is used as a comparative example. In this comparative example, the portion corresponding to the stretchable portion does not substantially stretch.

Markers were affixed in the vicinity of the eyelets of the shoes of each of the test examples and comparative examples, each shoe was attached to the foot as shown in FIG. 7, and the distances D _{1 to} D ₆ shown below were measured.
D ₁ is the distance between markers affixed to the first vicinity of the eyelet H1 ₁ inside and outside.
D ₂ is the distance between markers affixed to the first vicinity of the eyelet H1 ₂ inside and outside.
D ₃ is the distance between the markers affixed in the vicinity of the inner and outer second eyelets H2 ₃ .
D ₄ is the distance between markers was affixed in the vicinity of the first eyelet H1 ₄ of the inner and outer.
D ₅ is the distance between markers was affixed in the vicinity of the first eyelet H1 ₅ of the inner and outer.
D ₆ is a distance between markers affixed in the vicinity of the inner and outer first eyelets H 1 ₆ .

  Next, the distance between the markers is measured with a measuring instrument while raising the heel by bending the MP joint from the state of FIG. 7 as shown in FIG. 8, and the distance Di between the markers every time the heel rises 20 mm. Asked. This measurement was performed for each test example and comparative example.

Wherein for each sample to calculate the amount of change ΔD ₁ ~ΔD ₆ of D ₁ to D _6, FIG 21A~-21C for each sample and the results are shown in FIGS. 22A and 22B.
A discussion of this result is described below.

In the comparative example of FIG. 22B, the amount of change ΔD ₃ of the distance between the second eyelets H2 ₃ exceeds 2%, whereas in the test examples of FIGS. 21A to 21C and 22A, ΔD ₃ is ± 0. It became about 5% or less.
This is considered to be because the expansion / contraction part expanded and contracted according to the change in the foot circumference when the heel of FIG. 8 was raised.

Further, the total amount ΣΔD of each change amount ΔD _{1 to} ΔD ₆ of the comparative example (the sum of absolute values of the change amount ΔDi) is larger than that ΣΔD of the test example. This is because when the heel of the foot is lifted, the long mother heel extensor tendon and the medial, intermediate, and outer wedge-shaped bones and the scaphoid bone that are present in the region corresponding to the distances D _{3 to} D ₆ protruding toward the D ₃ elongation distance to D _6, whereas the distance of the D ₂ of the MP joint near the elongation of the distance of the D ₃ to D ₆ are considered to be due to shrink.

On the other hand, in the comparative example, it can be seen that, among the respective change amounts ΔD _{1 to} ΔD ₆ , the change amount at the time when the heel has increased by 80 mm to 100 mm has the largest distance D ₃ . Further, the distance between the eyelets D ₁ and D ₂ in front of the second eyelet H2 ₃ tends to be shifted to the minus side, whereas the distance between eyelets D _{4 to} D ₆ behind the second eyelet H2 ₃ is There is a strong tendency to shift to the positive side. Therefore, it is presumed that the second eyelet H2 is most preferably provided at the site of the second eyelet H2 ₃ in FIG. 1, that is, the site of the bone bodies of the first to fifth metatarsals.

The total amount ΣΔD of the amount of change in Test Examples 1 to 3 of FIGS. 21A to 21C having a pair of side panels and an extension part is smaller than that ΣΔD of Test Example 4 of FIG. 22A having an extension part to the main upper. I understand. In particular, it can be seen that this phenomenon is significant when the amount H of the soot rises between 20 mm and 80 mm.
Consider the reason.

When the heel ascends as shown in FIG. 8 from the state of FIG. 7, the center portion of the tongue piece 4 is pushed against the instep, and the space between the second eyelet H2 ₃ and the upper eyelet H15 in FIG. I will try. At this time, not only the intermediate portion 55 of the side panel 51 (52) extends along the circumferential direction of the foot, but also the distal end portion 53 of the side panel 51 moves in the oblique front-rear direction Y. For example, the distances Dy1 and Dy2 between the second eyelet H2 in FIG. 7 and the adjacent first eyelet H1 change before and after bending, as can be seen from the comparison between FIGS. That is, after bending, Dy2 becomes shorter, while Dy1 becomes longer.

Thus, when the front-end | tip part 53 of a side panel moves to the diagonal front-back direction Y, the distance from the 2nd eyelet H2 of FIG. 1 to the 1st eyelet H1 ₂ and 1st eyelet H1 ₄ adjacent to it changes. It is presumed that the change in the distance D _i between the first eyelets H1 _i is also reduced by the change in the distance in the oblique front-rear direction Y.

  Further, another reason why the total amount ΣΔD of the amount of change in Test Examples 1, 2, or 3 is smaller than the total amount ΣΔD of the amount of change in Test Example 4 is that two second eyelets are provided in Test Examples 1-3. On the other hand, in Test Example 4, the second eyelet is estimated to be one place.

  The total amount of change ΣΔD of Test Example 1 provided so that the side panel contacts the inner and outer surfaces of the foot is smaller than the total amount of change ΣΔD of Test Examples 2 and 3 in which the side panel is provided in the upper bag. . The reason is that the side panel of Test Example 1 is easier to move back and forth compared to the side panel in the bag of Test Example 2, and the side panel can be immediately deformed in response to changes in the shape of the foot. The

Next, a test performed on a preferable number and position of the second eyelets is shown.
First, the athletic shoes shown in FIGS. 26A and 26B were used, and the following test examples 11 to 17 were prepared by replacing only the shoelaces. In the shoe of FIG. 26A, the positions of eyelets H3 ₁ and H3 ₂ correspond to the positions of the first eyelets H1 ₁ and H1 ₂ of the shoe of FIG. 3, and the positions of eyelets H3 ₅ and H3 ₆ of FIG. It corresponds to the position of 1 eyelet H1 ₄ , H1 ₅ . The phase of the second eyelet H2 ₃ in FIG. 3 corresponds to the position between the eyelets H3 ₃ and H3 _{4 in} FIG. 26A. Note that the number of eyelets used was six in accordance with the above test.

FIG. 23A to FIG. 23G are conceptual plan views showing shoelaces used in Test Examples 11-17. In these plan views, the eyelets H3 _{1 to} H3 ₆ are all first eyelets, and a normal non-stretchable shoelace 31 or a stretchable rubber-string-like stretchable shoelace 32 is provided between the eyelets H3 _{1 to} H3 _6. Used to tighten. In the drawing, a thick line indicates a normal non-stretchable shoelace 31 and a thin line indicates a rubber string-like stretchable shoelace 32.

For example, only the tightened elastic laces 32 between the first eyelet _H3 3 -H3 ₃ in Test Example 11, clamped between the first eyelet _H3 1 -H3 ₂ in the non-stretchable laces, the first eyelet H3 ₄ - Between H3 ₆ was tightened with another non-stretch shoelace. The stretch of the stretchable shoelace 32 was set to about 15% or less.

  The telescopic shoelace 32 allows the first eyelet to expand, and therefore, the portion of the first eyelet connected by the telescopic shoelace 32 is presumed to exhibit an approximate behavior when the second eyelet is provided. . Based on this assumption, the test described below was conducted.

When four test subjects wore the shoes of Test Examples 11 to 17 and raised their heels, a sensory test was performed to determine whether or not the legs were stably held by the shoes.
As the results of this sensory test, evaluation numerical values were calculated for each of Test Examples 11 to 16 by a well-known paired comparison (AHP) method. The calculation results are shown in the bar graph of FIG.

As can be seen from the graph of FIG. 24, Test Examples 11, 12, and 14 in which the elastic shoelaces 32 are provided only on the eyelets H3 ₃ and / or H3 ₄ show large evaluation values, and can stably hold the foot. I understand. When the elastic shoelace 32 is provided on one of the eyelets 3 ₃ and ₄ , the evaluation numerical value is higher than that provided on both the eyelets 3 ₃ and the eyelets 3 ₄ . Accordingly, one foot of the second eyelet H2 can stably support the foot rather than two on one side.
On the other hand, elastic laces 32 shows a lower number Test Example 13, 15 and 16 provided on the eyelet H3 ₅ a, it can be seen that not be stably hold the feet.
In particular, when the stretchable shoelace 32 is provided over _three eyelets H3 ₃ -H3 ₅ , it can be seen that the holding of the foot becomes unstable.

Next, a marker is affixed in the vicinity of the eyelet of the shoes of each test example 11, 12, 17, 16 and each shoe is attached to the foot, and the distances D _{1 to} D ₆ are the same as in the test examples 1 to 4 described above. Was measured. The results are shown in FIGS. 25A to 25D.
A discussion of this result is described below.

As can be seen from the graphs of FIGS. 25A to 25D, Test Examples 11 and 12 in which the stretchable shoelace 32 is provided in the eyelet H3 ₃ or H3 ₄ are Test Examples 17 and 16 in which the stretchable shoelace 32 is provided in the eyelet H3 _5. Compared to the difference between the eyelet distances D _{4 to} D ₆ is small.
In particular, Test Examples 11 and fastened with elastic laces 32 only between grommet H3 ₃ has a small change in each eyelet distance _D 1 to D _6.

Here, when the positions of the upper eyelets H3 _{1 to} H3 ₆ with respect to the foot skeleton of the upper 2 shown in FIGS. 26A and 26B used as the respective test examples 11 to 17 are seen, the eyelets H3 ₃ and H3 ₄ are the inner sides of the feet. in the first toe of the metatarsophalangeal between the rear Y2 than rheumatoid MP ₁ in, and the disposed position of the front Y1 than bone bottom B4 1 _B metatarsal of the first toe, whereas, in the outer the fourth toe of the metatarsophalangeal between the rear Y2 than joints MP _4, and are disposed at positions of the front Y1 than bone bottom B4 4 _b metatarsal of the fourth toe.

  Therefore, it is presumed that when the second eyelet H2 is provided only in these regions, the stable holding of the foot and the fitting performance according to the change of the foot circumference are the highest.

On the other hand, as shown in FIG. 23F, in the case of Test Example 16 in which _three eyelets H3 _{3 to} H3 ₅ are connected by the telescopic shoelace 32, as shown in FIGS. 24 and 25D, the distance between eyelets D _{4 to} D _{6 is obtained.} It can be seen that the spread is significantly large and the foot cannot be stably held. Therefore, in the said patent document 6 (Nakano), when a side panel is formed with rubber | gum or an elastic cloth, it is estimated that the function to hold | maintain a leg | foot stably may fall remarkably.

Next, a fifth embodiment will be described with reference to FIGS.
In this embodiment, the side panels 51 and 52, which are movable parts, do not have to have the stretchable part. Hereinafter, prior to the description of the fifth embodiment, the advantage of the second eyelet H2 being displaced in the lateral direction X and the oblique front-rear direction Y with respect to the main upper (main part) 2M via the side panels 51 and 52 will be described. State.

27, now, consider the upper 2 in which the second eyelet H2 ₃ is disposed between the first eyelet H1 ₂ and the first eyelet H1 ₄ behind the front.
In a state where the upper is tightened by the shoelace 3 indicated by a solid line, the V-shaped portions 33 and 34 of the shoelace ₃ that engage with the second eyelet H23 are engaged during the heel rise from the foot flat. Along with the direction of the resultant force FW of the first tensile force FW1 and second tension FW2 changes acting on the second side edge portion 20B, the second eyelet H2 ₃ is the movable portion (side panel) 51, 52 The main body 2M is displaced in the oblique front-rear direction Y1, Y2. Thus, the direction of the resultant force FW match or approach the lateral direction X, the second eyelet H2 ₃ is displaced to the most reasonable position. At this time, as the second eyelet H2 ₃ is displaced in an oblique rear direction Y, the first tensile force FW1 is increased slightly, whereas, like the second tension FW2 decreases slightly, both tensile forces FW1, FW2 will change.

On the other hand, the second eyelet H2 ₃ is displaced in the lateral direction X, eyelet distance between oblique opposite varies. Therefore, the second eyelet H23 is displaced in the lateral direction X, so that the change in the tension of the shoelace 3 due to the change in the oblique distance between the eyelets can be reduced.

Also in this fifth embodiment without stretching the side panels 51, 52 of FIGS. 28 to 39, a second eyelet H2 ₃ which is provided on the side panels 51, 52 are movable in the transverse direction X and the oblique rear direction Y The structure will be described.
In the fifth embodiment, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the case of the present embodiment, the first side edge portion 20A where the first eyelet H1 of FIG. 28 is formed is divided before and after the side panels 51 and 52, and a divided portion 7 is formed in the main upper 2M. The side panels 51 and 52 are arranged in the divided portion 7. Each of the divided portions 7 completely crosses the inner side surface 21 and the outer side surface 22 (FIG. 29) of the main upper 2M.

  33 to 36, the first side edge portion 20A is formed by sewing a so-called eyelet decoration on a base fabric.

The width W5 (FIG. 30) of each of the side panels 51 and 52 becomes smaller toward the upper side and is smaller than the width W7 of the divided portion 7. That is, between the front edge 73 or the rear edge 74 (FIG. 39A) of the divided portion 7 and the front edge 503 or the rear edge 504 (FIG. 39A) of the side panels 51 and 52, the diagonally rearward downward direction is directed. A front gap ΔS1 or a rear gap ΔS2 is formed to allow the side panels 51 and 52 extending in a relatively approaching manner toward the front edge 73 or the rear edge 74 of the divided portion 7. front Y1 of the second eyelet H2 ₃ is an oblique rear direction Y provided on the side panels 51 and 52, and can move in rearward Y2 and the lateral X.

  As clearly shown in FIGS. 39A and 39B, the front gap ΔS1 and the rear gap ΔS2 become larger from the upper surface of the sole 1 toward the second opening P2, and accordingly, the intermediate portion 55 of each side panel 51, 52 has a front Y1 and a rear. Y2 can move relative to the main upper 2M.

In the case of the present embodiment, as shown in FIG. 32, the divided portion 7 is composed of an inner skin 71 and an outer skin 72.
As can be seen from FIGS. 30 to 36, the inner skin 71, the outer skin 72 and the side panels 51, 52 of the divided portion 7 respectively pass the inner side surface 21 and the outer side surface 22 of the main upper 2M in the circumferential direction R (FIG. 37A). Has crossed. The inner skin 71 and the outer skin 72 are sewn to the main upper 2M in the vicinity of the front edge 73 and the rear edge 74 of the divided portion 7.

The second side edge portion 20B (tip portion 53) in which the intermediate portion 55 and the loop-shaped second eyelet H23 of the side panels 51 and 52 that do not essentially extend are formed on the sole 1 only through the lower end portion 54. It is joined.
Such side panels 51, 52 are capable of rotating back and forth around the lower end portion 54, therefore, the displacement of the second eyelet H2 ₃ can become larger.

  The widths of the inner skin 71 and the outer skin 72 become smaller from the sole 1 toward the upper side. On the other hand, the divided portion 7 of the main upper 2M extends in the oblique front-rear direction Y as it goes upward at the upper end facing the second opening 2P. Thereby, the front-back displacement with respect to the intermediate part 55 of the front-end | tip part 53 of the side panels 51 and 52 can become large.

  As clearly shown in FIG. 37B, the divided portion 7 is formed in a pocket shape by an inner skin 71 and an outer skin 72. The inner skin 71 and the outer skin 72 are separated from each other in the lateral direction X at the front edge 73 and the rear edge 74 of the divided portion 7. As a result, the side panels 51 and 52 can be smoothly displaced to the front edge 73 and the rear edge 74.

  37A touches the inner surface 501 of the side panels 51 and 52, and the inner surface 711 of the inner skin 71 is smoother than the inner surface 201 of the main upper 2M of FIG.

  The outer surface 712 of the inner skin 71 in contact with the inner surface 501 of the side panels 51 and 52 in FIG. 37A and the inner surface 721 of the outer skin 72 in contact with the outer surface 502 of the side panels 51 and 52 are the main upper 2M in FIG. It is smoother than the outer surface 202.

  Here, “smooth” means that the degree of unevenness of the inner surface 711 of the inner skin 71 and the inner surface 721 of the outer skin 72 is smaller than the unevenness of the surface to be compared. Small coefficient of friction with 52 and socks

As a material for forming such a smooth surface, a yarn-like woven or knitted sheet-like member made of chemical fibers such as rayon is employed.
In the case of this embodiment, for example, the inner skin 71 of FIG. 32 is formed by overlapping fabrics, while the outer skin 72 is formed by sewing the tape material (soft resin) 75 of FIG. 33 on the outer surface of the fabric. . 32, 33 and 35, the inner skin 71 and the outer skin 72 formed of a woven fabric are provided with patterns such as meshes.

The inner skin 71 and the outer skin 72 that form the divided portion 7 are thinner than the members that form the main upper 2M before and after the divided portion 7 and have a small bending rigidity.
Further, the bending rigidity of the members forming the side panels 51 and 52 is larger than the bending rigidity of the inner skin 71 and the outer skin 72 of the divided portion 7. The side panels 51 and 52 may be formed by, for example, double-bonding synthetic leather as shown in FIGS. 37B and 39E. In this case, the through hole 55h is formed only in one of the double synthetic leathers. In some cases, the side panels 51 and 52 exhibit elasticity.

Here, the “bending rigidity” of the sheet-like member is defined by the product of the Young's modulus and the cube of the thickness of the member constituting the part 7 or the members of the side panels 51 and 52.
In addition, as another measuring method of "bending rigidity", it can know by the magnitude | size of the load required for the bend | folding so that the front edge and the rear edge may overlap each other about each cut-out member.

  In addition, the inner skin 71 and / or the outer skin 72 may be formed of the above-described elastic member instead of having low bending rigidity. This is because such a sheet-like member follows the bending of the foot.

  The outer skin 72 is sewn with a tape material 75, so that the inner skin 71 has a bending rigidity smaller than that of the outer skin 72 and is thin. The thin and flexible endothelium 71 is easily deformed as shown in FIGS. 38A to 38F, and does not cause any wrinkles after the deformation. Therefore, it can be deformed even in a small narrow space between the side panels 51 and 52 and the side surface of the foot.

On the other hand, the outer skin 72 to which the tape material 75 is sewn has a bending rigidity and a larger thickness than the inner skin 71, and faces the outside (outward) of the upper 2 as shown in FIGS. Swells and curves. Thereby, the deformation | transformation shown to FIG. 38A-FIG. 38C of the parting part 7 is accept | permitted.
The outer skin 72 may have a thickness larger than that of the side panels 51 and 52 as long as it is smaller than the side panels 51 and 52 in bending rigidity.

The outer skin 72 to which the tape material 75 is sewn has greater tensile rigidity in the front-rear direction than the inner skin 71. The large tensile rigidity of the outer skin 72 is a resistance against the upper 2 being pulled in the front-rear direction at the divided portion 7.
The tape material is sewn over the outer skin 72 and the main upper 2M before and after the outer skin 72.

  In the woven fabric (woven fabric) constituting the inner skin 71 and the outer skin 72 shown in FIG. 32, the yarns constituting the inner skin 71 and the outer skin 72 extend in the front-rear direction and the vertical directions Z1, Z2. Therefore, the inner skin 71 and the outer skin 72 are not easily stretched in the front-rear direction, and are easily stretched in an oblique direction intersecting with the front-rear direction and the vertical directions Z1, Z2. Such a direction of the thread hardly prevents the divided portion 7 from changing from the shape of FIG. 39C to the shape of FIG. 39D.

  30 and 31, the side panels 51 and 52 and the divided portion 7 become narrower along an oblique direction upward as they go forward, and extend from the upper surface of the sole 1 to the second opening P2. An angle θ formed by each of the side panels 51 and 52 and the divided portion 7 and the upper surface of the sole 1 is set to about 40 ° to 55 °, and the rear end of the front end portion 53 is forward of the front end of the lower end portion 54 ( Y1). Therefore, when the second tensile force FW2 in FIG. 27 increases, the rear edges 504 of the side panels 51 and 52 rotate around the lower end 54 so as to approach the rear edge of the divided portion 7.

In order for the side panels 51 and 52 to rotate in this manner, it is preferable that the width W5 of the side panels 51 and 52 in the oblique front-rear direction Y is small.
The width W5 of the side panels 51, 52 is preferably about 5 mm to 20 mm at the tip W51, about 15 mm to 35 mm at the lower end W52, more preferably about 7 mm to 17 mm at the tip W51 and about 20 mm to 30 mm at the lower end W52.
If the width W5 is too small, the tightening force by the shoelace 3 acting on the side surface of the foot via the side panels 51 and 52 may be too large.

As shown in FIGS. 33 and 35, the second distance between the second eyelet H2 ₃ and the first eyelet H1 _{2 in} front of the second eyelet H2 ₃ is larger than the first distance Dy between the first eyelets H1 adjacent to each other in the oblique front-rear direction Y. The distance Dy1 is large, and the third distance Dy2 from the second eyelet H2 ₃ to the first eyelet H1 ₄ behind it is larger than the first distance Dy.
In this case, the angle α formed by the V-shaped portions 33 and 34 of the shoelace 3 in FIG. 27 is relatively large. Therefore, the change of the first or second tension FW1, FW2, easy second eyelet H2 ₃ is displaced in an oblique rear direction Y.

  Next, the shoe of this example was designated as Test Example 5, and the same test as in Test Examples 1 to 4 was performed. The results are shown in the chart of FIG.

In this test example 5, the total amount ΣΔD variation ΔD ₁ ~ΔD ₆ All eyelet distance _D 1 to D ₆ are taken even smaller than in Test Example 1-4 of FIG 21A~ Figure 21C and Figure 22A You can see that
In particular, with respect to the first eyelet _H1 4 _{~H1 6} the rear than the second eyelet H23, the amount of change ΔD ₄ ~ΔD ₆ is small and that the amount of change [Delta] D _4, [Delta] D ₅ is changed to the negative side min The

That is, the distance between the eyelets D _{3 to} D ₆ is not easily increased, and therefore, the fitting property at the mouth (the first opening P1) is high.

Hereinafter, the reason is considered with the upper 2 at the time of wearing the shoes of a present Example.
First, from the foot flat state of FIG. 28, FIG. 33 and FIG. 35 (the state where the toe and heel of the sole 1 are grounded), the heel rise of FIG. 29, FIG. 34 and FIG. The deformation of the upper 2 in the case of reaching the ground up) will be described.

As the MP joint dorsiflexes from the foot flat state of FIG. 38A to the heel rise of FIG. 38B and FIG. 38C, the upper edge (top) of the upper 2 contracts into a concave shape, and the dividing portion 7 is deformed. To do.
Here, if the rigidity of the divided portion 7 is large, the first opening P1 and the second opening P2 of FIG. 29 will expand in the lateral direction as the upper edge of the upper 2 tends to shrink.
On the other hand, the upper 2 of the present embodiment (Test Example 5) has a flexible divided portion 7 in the middle foot portion. Therefore, the deformation of the upper 2 accompanying the dorsiflexion of the MP joint is facilitated, and the distances D _{3 to} D ₆ are suppressed from increasing.

Incidentally, by the dorsiflexion, distance (Dy1 + Dy2) between the first eyelet H1 ₂ and H1 ₄ of FIG. 33 and FIG. 35, respectively, it shrinks as shown in FIGS. 34 and 36.

34, the third distance Dy2 is shortened along with the dorsiflexion of the MP joint, and the first side panel 51 on the inner side of the foot is the rear edge of the divided portion 7 with the lower end 54 as the center. It can be seen that it is deformed to rotate toward 74. Thus, the second eyelet H2 ₃ it can be seen that with respect to the first eyelet H1 ₄ backward is relatively displaced in an oblique rear direction of the rear Y2. That is, as the angle θ in FIG. 39A increases, the second eyelet H2 _{3 in} FIG. 30 is displaced toward the upper Z1 (in the circumferential direction) with respect to the first eyelet H1 ₄ .

On the other hand, on the outer side of the foot in FIG. 35, with the dorsiflexion of the MP joint, the main upper 2M in front of the divided portion 7 (the forefoot portion) is greatly distorted in the vicinity of the foot's small ball, and the second distance Dy1 Can be seen to be shorter. Thus, the leading edge 73 is approaching the dividing portion 7 to the front edge 503 of the second side panel 52 of the outer legs, thereby, the second eyelet H2 ₃ forward relative to the first eyelet H1 ₂ forward oblique longitudinal It can be seen that it is displaced relative to Y1.

In addition, it is estimated that the reason why the deformation of the divided portion 7 and the main upper 2M is different between the inside and outside of the foot is that the deformation of the foot during dorsiflexion is different inside and outside. Further, it is presumed that the distance D ₃ between the second eyelets H2 ₃ and H2 _{3 of} FIG.

Next, a sixth embodiment will be described with reference to FIGS. 41A and 41B.
As shown in these drawings, the second eyelet H2 may be formed of a loop having a hinge 106 at the tip of an elastic member 105 such as a fishing line. The elastic member 105 is inserted through the tube 107.

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily understand various changes and modifications within the obvious scope by looking at the present specification.
For example, the side panel may be provided along the outer surface of the main upper. Further, the stretchable portion of the side panel may be provided only on one of the inner side surface or the outer side surface of the foot.

  Further, a pair of side panels may be provided, and the stretchable part may be provided only on one of the pair of side panels, or the position of the side panel may be shifted in the front-rear direction (tilted).

  In addition, a pair of side panels not having the stretchable part may be provided, and the stretchable part may be provided in a portion other than the side panel of the upper. In this case, not only the second eyelet provided with the expansion / contraction part moves, but also the first eyelet provided on the side panel moves obliquely in the front-rear direction.

  The first part may be formed of a material having rubber elasticity, and in this case, the first part may be provided linearly in the front-rear direction. Further, the first part is not necessarily provided.

  Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.

  The present invention is applied to a shoe having a shoelace that fits the upper of the shoe to the foot.

1: Sole 2: Upper 2M: Main upper (main part)
2t: Tape material 20: 1st side edge part 20A: 1st side edge part 20B: 2nd side edge part 21: Inner side surface 22: Outer side surface 23: Surface material 24: Back surface material 25: Notch 29: Accommodating part 3 : Shoelace 33, 34: V-shaped part 4: Tongue piece 5: Extendable part (movable part)
5A: telescopic part (movable part)
5B: telescopic part (movable part)
50: 1st part 50a: Reinforcement material 59: 2nd part 51: 1st side panel (movable part)
52: Second side panel (movable part)
53: Tip (second side edge) (of side panel)
53a: Eyelet member 53b: Eyelet member 54: Lower end portion (of side panel) 55: Intermediate portion (of side panel) 55h: Through hole 501: Inner surface (of side panel) 502: Outer surface of (side panel) 503: Front edge (of side panel) 504: Rear edge (of side panel) 7: Divided portion 71: Endothelium 72: Outer skin 73: Front edge 74: Rear edge 75: Tape material 711: Inner surface of (endothelium) 712: (endothelium) ): Outer surface 721: inner surface (of outer skin) 722: outer surface (of outer skin) B: back surface B4 ₁ : metatarsal bone of _first heel B4 ₁ h: bone head (of metatarsal bone of _first heel) B4 ₁ b: Bone floor (in the first metatarsal bone) B4 ₄ : Metatarsal bone in the fourth rib B4 ₄ h: Bone head (in the fourth metatarsal bone) B4 ₄ b: (In the fourth leg metatarsal) Bone base Dy: first distance Dy1: second distance Dy2: third distance f1: first heel 4: 4th rod f5: 5th rod FW: resultant force FW1: first tensile force FW2: second tensile force H1: first eyelet H2: second eyelet IN: inward direction Is: instep OUT: outward direction P1: 1st opening (of upper) P2: 2nd opening of (upper) Le: Leg LJ: Lisfranc joint MP: MP joint R: Circumferential direction S1: Inner surface of (foot) S2: Outer surface of (foot) T: Toe W5: Side panel width W7: Divided portion width W51: Tip W52: Lower end X: Lateral direction Y: Diagonal longitudinal direction Y1: Forward Y2: Rearward Z1: Upper side Z2: Downward ΔS1: Front gap ΔS2: Rear gap θ: Angle

Claims (23)

A shoe with a lacing fitting structure,
A sole that absorbs the impact of landing, an upper that wraps the instep, and shoelace means for fitting the upper to the instep,
The upper has a first opening in which a leg goes upward when landing, and a second opening provided in front of the first opening, and the two openings are connected to each other in the front-rear direction;
The upper is
A first side edge having a plurality of first eyelets that are provided along a side edge of the second opening and engage with the shoelace means;
A second side edge having one or more second eyelets arranged between the plurality of first eyelets and through which the shoelace means passes and engages;
A movable part that allows the second eyelet to move relative to the first eyelet in a lateral direction crossing the second opening and in an oblique front-rear direction perpendicular to the lateral direction and along the instep;
Covering the inner side surface, the outer side surface, the toe, the back and the back surface of the foot, including the first side edge portion, and including the main portion excluding the second side edge portion and the movable portion,
Direction of resultant force of the first tensile force and the second tensile force acting on the second side edge by the V-shaped portion of the shoelace means engaged with the second eyelet during foot flat to heel rise As the shoe changes, the second side edge portion including the second eyelet is displaced relative to the main portion via the movable portion in the lateral direction and the oblique front-rear direction.   2. The shoe according to claim 1, wherein one of the first eyelets is adjacent to the front of the second eyelet in the oblique front-rear direction, and the first eyelet is behind the eyelet in the oblique front-back direction. Another one of them is adjacent. The shoe according to claim 2, wherein the plurality of first eyelets include first eyelets adjacent to each other in the oblique front-rear direction,
A second distance between the second eyelet and the first eyelet in front of the second eyelet is larger than a first distance between the first eyelets adjacent to each other in the oblique front-rear direction; and
A third distance from the second eyelet to the first eyelet behind the second eyelet is greater than the first distance. 2. The shoe according to claim 1, wherein the inner side surface or the outer side surface of the foot extends downward and obliquely downward from the second opening along the inner side surface or the outer side surface of the foot in a space inside or outside the main portion. A side panel for covering,
The side panel includes the second eyelet and the movable part;
The first side edge portion where the first eyelet is formed is divided at the front and rear of the side panel, and a divided portion is formed in the main portion,
The side panel is disposed at the divided portion.   5. The shoe according to claim 4, wherein the side panel extending downward and obliquely rearward is relatively between the front edge of the divided portion and the front edge of the side panel, relative to the front edge of the divided portion. A front clearance is formed to allow the second eyelet to approach the first eyelet, thereby allowing the second eyelet provided on the side panel to move relative to the first eyelet in the obliquely front-rear direction and in the lateral direction. ing.   5. The shoe according to claim 4, wherein the side panel extending downward and obliquely rearward is relatively between the rear edge of the divided portion and the rear edge of the side panel. A rear gap is formed to allow the second eyelet to approach the first eyelet, so that the second eyelet provided on the side panel can move relative to the first eyelet rearward in the oblique front-rear direction and in the lateral direction. ing. 5. The shoe according to claim 4, wherein the bending rigidity of the sheet-like member forming the divided part is smaller than the bending rigidity of the member forming the main part before and after the dividing part, or is formed from a sheet-like member that is easy to shrink. And
The bending rigidity of the member forming the side panel is larger than the bending rigidity of the sheet-like member at the divided portion. The shoe according to claim 7, wherein the divided portion is formed in a pocket shape having an inner skin and an outer skin,
The inner skin and the outer skin are separated from each other in the lateral direction at the front edge and the rear edge of the divided portion.   9. The shoe according to claim 8, wherein the sheet-like member of the divided portion is thinner than a member forming the main portion before and after the divided portion.   5. The shoe according to claim 4, wherein one or more second eyelets are provided at a position between the bone head and the bone bottom of the first metatarsal inside the foot, and the metatarsal of the metatarsal is located inside the foot. The second eyelet is not provided at a site behind the bone bottom and a site ahead of the metatarsal head. The shoe according to claim 4, wherein the divided portion is formed in a pocket shape having an inner skin and an outer skin,
The inner skin is in contact with the inner surface of the side panel, and the inner surface of the inner skin is smoother than the inner surface of the main part in contact with the side surface of the foot.   5. The shoe according to claim 4, wherein an outer surface of the inner skin that is in contact with a surface of the side panel and an inner surface of the outer skin are smoother than an outer surface of the main portion.   5. The woven fabric according to claim 4, wherein the divided portion extends from the upper surface of the sole to the second opening along a diagonal direction that goes upward as it goes forward, and the inner skin and the outer skin can extend in the diagonal direction. It is formed of a knitted fabric or a mesh-like sheet. 5. The shoe according to claim 4, wherein the side panel includes a lower end fixed to the sole, a distal end forming the second side edge, and the lower end and the second side edge. And an intermediate part constituting
The intermediate portion and the second side edge portion are connected to the sole only through the lower end portion. A shoe with a lacing fitting structure,
A sole that absorbs the impact of landing, an upper that wraps the instep, and shoelace means for fitting the upper to the instep,
The upper has a first opening in which a leg goes upward when worn, and a second opening provided in front of the first opening, and the two openings are connected to each other in the front-rear direction;
The upper is
A side edge portion having a plurality of first eyelets that are provided along a side edge of the second opening and through which the shoelace means passes;
A side panel extending downward or obliquely downward from the second opening along the inner or outer surface of the foot and covering the inner or outer surface of the foot;
Covering the inner side surface, the outer side surface, the toe, the back and the back of the foot, including the side edge portion, and a main portion excluding the side panel, wherein the side panel includes:
A front end portion provided at a front end of the side panel and having a second eyelet that engages with the passage of the shoelace means and is not attached to the main portion;
A lower end attached to the main part and / or the sole;
An intermediate portion disposed between the tip portion and the lower end portion;
The front end portion of the side panel is movable relative to the main portion in an oblique front-rear direction perpendicular to the lateral direction crossing the second opening and along the instep.
The side panel is arranged in a divided portion where the side edge portion forming the first eyelet is divided in the front and rear,
The width of the side panel is smaller than the width of the divided part in the width in the oblique front-rear direction,
The sheet-like member that forms the divided part is smaller in bending rigidity or more easily contracted than the member that forms the main part before and after the divided part,
The bending rigidity of the member forming the side panel is greater than the bending rigidity of the sheet-like member at the divided portion.   16. The shoe according to claim 15, wherein the sheet-like member of the divided portion is thinner than a member forming the main portion before and after the divided portion.   16. The shoe according to claim 15, wherein one or more second eyelets are provided at a position between the bone head and the bone bottom of the first metatarsal inside the foot, and the metatarsal of the metatarsal is located inside the foot. The second eyelet is not provided at a site behind the bone bottom and a site ahead of the metatarsal head. The shoe according to claim 15, wherein the divided portion is formed in a pocket shape having an inner skin and an outer skin,
The inner skin is in contact with the inner surface of the side panel, and the inner surface of the inner skin is smoother than the inner surface of the main part in contact with the side surface of the foot.   16. The shoe according to claim 15, wherein the divided portion is formed in a pocket shape having an inner skin and an outer skin, and an outer surface of the inner skin that is in contact with a surface of the side panel and an inner surface of the outer skin are more than an outer surface of the main portion. It is smooth.   The shoe according to claim 15, wherein the divided portion extends from the upper surface of the sole to the second opening along an oblique direction that goes upward as it goes forward, and the inner skin and the outer skin can extend in the oblique direction. It is formed of a knitted fabric or a mesh-like sheet.   16. The shoe according to claim 15, wherein a lower end portion of the side panel is fixed to the sole, and the intermediate portion and the distal end portion are connected to the sole only via the lower end portion.   The shoe according to claim 21, wherein the side panel extending obliquely forward from the sole toward the second opening is disposed between the front edge of the divided portion and the front edge of the side panel. A front gap is formed to allow relative approach toward the front edge, whereby the second eyelet provided on the side panel moves relative to the first eyelet in the obliquely front-rear direction. It is possible. The shoe according to claim 21, wherein the side panel extending obliquely forward from the sole toward the second opening is provided between the rear edge of the divided portion and the rear edge of the side panel. A rear gap is formed to allow relative approach toward the rear edge, whereby the second eyelet provided on the side panel moves relative to the first eyelet backward in the oblique front-rear direction. It is possible.

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