JP2020163174A - Shoe - Google Patents

Abstract

To provide a shoe capable of maintaining fitness and improving holding property.SOLUTION: A shoe 100 comprises: a first formation part 26 and a second formation part 28 on which string passage parts 62 are respectively formed, and which are provided on an inner foot side and an outer foot side sandwiching therebetween, a center opening part 20c which is formed on a front side from a foot insertion part 20b of an upper 20; a first support member whose tip end part 32h is fixed to the second formation part 28, the first string passage structure is provided on the tip end part 32h, and extends downward so as to contact an inner foot; a second support member whose tip end part 34h is fixed to the first formation part 26, a second string passage structure is provided on the tip end part 34h, and extends downward so as to contact an outer foot; and a shoe lace 60 which passes through the string passage part 62 and passes continuously the first and second string passage structures.SELECTED DRAWING: Figure 1

Description

The present invention relates to shoes.

A type of shoe is known in which the shoelace passed through the hole is tightened to tighten the instep. For example, Patent Document 1 describes a shoe that tightens the instep with a shoelace. This shoe is provided with a pair of auxiliary tightening members whose base end is connected to the sole inside the instep wing and has a ring at the free end, and the ring of the auxiliary tightening member is the instep wing. Pass through the opening of. The shoe is tensioned by passing a shoelace through the ring of the auxiliary tightening member and the through hole of the instep feather portion, thereby partially tightening the instep of the foot with the auxiliary tightening member in addition to the tightening by the shoelace.

JP-A-2007-190351

The present inventors have obtained the following recognition regarding the holdability and fit of shoes.
Shoes worn in sports, etc. are desired to reduce the feeling of restraint and fit appropriately when the wearer performs low-strength movements such as when standing still or walking at low speed, and perform high-strength movements during running or exercise. When doing so, it is desirable to follow the movement and hold the foot firmly. However, if the shoelaces are strongly tensioned in order to improve the holdability, the feeling of restraint continues even during low-strength operation, and the fit is reduced. That is, there is a problem that it is difficult to achieve both improvement of holdability and securing of fit.

Such problems can occur not only in sports shoes but also in other types of shoes.

The present invention has been made in view of these problems, and an object of the present invention is to provide shoes capable of improving holdability while maintaining a fit.

In order to solve the above-mentioned problems, the shoe of a certain aspect of the present invention is provided on the inner foot side with a central opening formed forward from the foot insertion part of the upper, and a stringing portion is formed in each shoe. The first forming portion and the second forming portion provided on the outer foot side and the tip portion are fixed to the second forming portion, and the first stringing structure is provided at the tip portion and extends downward so as to abut on the inner foot. A first support member to be used, a second support member whose tip is fixed to the first forming portion, a second stringing structure is provided at the tip, and a second support member extending downward so as to abut the outer leg, and a stringing It is provided with a shoelace that passes through the portion and continuously passes through the first and second stringing structures.

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

According to the present invention, it is possible to provide shoes capable of improving holdability while maintaining a fit.

It is a top view which shows typically the shoe which concerns on embodiment of this invention. FIG. 5 is a cross-sectional view taken along the line AA of the shoe of FIG. It is an enlarged view which shows the forming part and the support member of the shoe of FIG. 1 in an enlarged manner. FIG. 3 is a plan view schematically showing the support member of FIG. It is a layout drawing which shows the arrangement example according to the tightening force of the support member of FIG. It is a layout drawing which shows the arrangement example according to the load from the foot of the support member of FIG. It is a layout drawing which shows the 1st arrangement example corresponding to the movement of the support member of FIG. It is a layout drawing which shows the 2nd arrangement example corresponding to the movement of the support member of FIG. It is a layout drawing which shows the 3rd arrangement example corresponding to the movement of the support member of FIG. It is a layout drawing which shows the arrangement example corresponding to the arch of the support member of FIG. It is a shape figure which shows the example of the rigidity reduction part of the support member of FIG. It is another shape diagram which shows the example of the rigidity reduction part of the support member of FIG. It is still another shape view which shows the example of the rigidity reduction part of the support member of FIG. It is an enlarged view which shows the periphery of the stringing structure of the support member of FIG. 3 enlarged. It is an enlarged view which shows the periphery of the stringing structure of the shoe forming part of FIG. 1 in an enlarged manner. It is a graph which shows the result of the tensile test of the support member of FIG. It is a schematic diagram which shows typically the force acting on each part of the shoe of FIG. It is a top view which shows typically the shoe which concerns on 1st modification. FIG. 8 is a cross-sectional view taken along the line BB of the shoe of FIG. It is a developed view which developed the tongue of the shoe of FIG. 18 in a plane. It is a top view which shows typically the shoe which concerns on the 2nd modification. FIG. 2 is a sectional view taken along line MM of the shoe of FIG. FIG. 2 is a sectional view taken along line NN of the shoe of FIG. It is a top view which shows typically the shoe which concerns on the 3rd modification. FIG. 4 is a sectional view taken along line PP of the shoe of FIG. 24.

Shoes have the property of being comfortable to the foot and fitting to the shape of the foot during normal times such as when standing still or walking (hereinafter referred to as "fitness"), and do not move the foot against the outsole during exercise. It is desirable to have the property of being constrained to (hereinafter referred to as "holdability"). Increasing the holdability reduces the amount of shake of the upper during operation, and enhances the property of the upper to receive the force applied in the direction in which the foot spills from the outsole of the shoe (hereinafter referred to as "stability"). However, the smaller the gap between the foot and the upper, the better the holdability and the higher the stability, but the lower the fit, so it is difficult to achieve both.

Here, the shoes described in Patent Document 1 will be considered from this viewpoint. The shoe has a pair of auxiliary tightening members that extend from the proximal side to the free end. A shoelace is passed through the ring connected to the free end portion, and the shoelace is tightened so that the auxiliary tightening member is tightened together with the instep blade portion. By tightening the auxiliary tightening member, one side of the base end side of the auxiliary tightening member is firmly joined to the slightly front part of the arch at the bottom edge on the inside, and the other side is firmly joined to the left and right inside and the same position in the front-rear direction on the outside. Each is firmly joined to the rear part.

In this shoe, the free end of the auxiliary tightening member is not fixed to the instep wing. Therefore, when the free end portion is strongly tightened with the shoelace, the instep feather portion on the side opposite to the auxiliary tightening member is also strongly tightened, and the foot is strongly tightened from the inside and the outside. Therefore, when the free end portion is strongly tightened in the static state in order to improve the holdability, the instep blade portion is also strongly tightened at the same time, so that the fit is lowered. Further, when the free end portion is loosely tightened in order to improve the fit, the instep blade portion is also loosely tightened at the same time, so that the holdability is lowered. In other words, it can be said that it is difficult to achieve both fit and hold in these shoes because the force for tightening the foot hardly changes between when a person is exercising and when the person is at rest.

The present invention has been made based on the above considerations. By fixing the tip of the support member to the upper, the force for tightening the foot is changed between exercise and rest, and the fit and exercise at rest are changed. It is intended to be compatible with the holdability of time.

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

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

[Embodiment]
Hereinafter, the configuration of the shoe 100 according to the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view schematically showing the shoe 100 according to the embodiment. In the following figures, including FIG. 1, shoes for the right foot are shown unless otherwise specified, but the description herein applies similarly to shoes for the left foot.

The shoes 100 of the present embodiment can be used as shoes for walking or running, shoes for sports such as tennis and basketball, for example. The shoe 100 has a sole 10 and an upper 20. As shown in FIG. 1, the inner foot side (lower side in the figure) from the width direction center line La of the upper 20 is the inner foot part 22, and the outer foot side (upper side in the figure) from the width direction center line La is the outer foot part. It's called 24. The direction from the outer foot side to the inner foot side is called the inner side, and the opposite direction is called the outer side. Further, the direction along the center line La is referred to as "front-back direction". In each figure, the arrow W indicates the width direction, and the arrow X indicates the front-back direction. Further, the directions toward the toe side along the center line La are referred to as "front side" and "front side", and the opposite sides are referred to as "rear side" and "rear side". Therefore, the width direction is orthogonal to the center line La.

FIG. 2 is a vertical cross-sectional view taken along the line AA of FIG. The upper side when the shoe 100 is placed on a horizontal plane (hereinafter referred to as "horizontal state") is referred to as "upper side" and "upper side", and the opposite side is referred to as "lower side" and "lower side". Further, in the horizontal state, the direction extending vertically is referred to as "vertical direction".

The upper 20 includes an inner foot portion 22, an outer foot portion 24, a first forming portion 26, a second forming portion 28, a first support member 32, a second support member 34, a shoelace 60, and a tongue. It has 70 and. The upper 20 surrounds an internal space 20a for accommodating the foot. A central opening 20c is formed in the upper 20 in front of the foot insertion portion 20b. When the first forming portion 26 and the second forming portion 28 are collectively referred to, they may be referred to as a forming portion. Further, when the 1 support member 32 and the 2nd support member 34 are collectively referred to, they may be referred to as a support member.

The sole 10 includes an outsole 12 and an insole 14. The sole 10 is fixed to the upper 20 by means such as adhesion.

The forming portion will be described with reference to FIG. FIG. 3 is an enlarged view showing the forming portion and the support member in an enlarged manner. The first forming portion 26 is provided on the inner foot side of the central opening 20c. The second forming portion 28 is provided on the outer foot side of the central opening 20c. That is, the first forming portion 26 and the second forming portion 28 are arranged so as to sandwich the central opening 20c in the width direction. A plurality of stringing portions 62 are formed in each of the first forming portion 26 and the second forming portion 28. The stringing portion 62 is a portion for passing the shoelace 60, and may be a through hole, a string hooking portion, or the like. As an example, the stringing portion 62 of the present embodiment is a through hole that penetrates vertically. Six stringing portions 62 are arranged in the first forming portion 26 and the second forming portion 28 at predetermined intervals in the substantially front-rear direction.

If the rigidity of the stringing portion 62 is low, the tension of the shoelace 60 escapes during high-intensity exercise, and the support function of the support member cannot be fully exerted. Therefore, in the present embodiment, the first and second forming portions 26 and 28 have reinforcing structures 26s and 28s for reinforcing the stringing portion 62. The reinforcing structures 26s and 28s need only have higher rigidity than the surroundings, and various configurations can be adopted. For example, the first and second forming portions 26 and 28 of the upper 20 are made of a low-stretch material having a lower elasticity than the surroundings, a material thicker than the surroundings, a material having a higher density than the surroundings or a material harder than the surroundings. It may be formed.

Further, the stringing portion 62 of the first and second forming portions 26 and 28 may be configured to have higher rigidity than the surroundings. In particular, the edge of the hole through which the shoelace 60 of the lace-through portion 62 passes may be configured to have higher rigidity than the surroundings. For example, a reinforcing member such as a metal or resin eyelet or a hook may be provided on the edge of the hole of the stringing portion 62, or the edge of the hole of the stringing portion 62 may be made thicker than the periphery by overhanging or the like. May be good. Further, of the first and second forming portions 26 and 28, the peripheral regions 26g and 28g of the fixing portion of the support member described later may have higher rigidity than the surroundings. The peripheral regions 26g and 28g are also regions where the through holes 26h and 28h, which will be described later, are provided.

The support member will be described with reference to FIG. FIG. 4 is a plan view schematically showing the support member. The first and second support members 32 and 34 are string-shaped or band-shaped members extending from the lower base end portions 32j and 34j to the upper tip portions 32h and 34h. The base end portions 32j and 34j may be fixed to one or both of the upper 20 and the sole 10. As an example, the proximal ends 32j, 34j may be fixed to the lower part of the outsole 12, the insole 14 or the upper 20, or may be fixed between them. In the example of FIG. 2, the base end portions 32j and 34j are fixed between the upper 20 and the insole 14.

If the support member is too flexible, the feel of the support member when it hits the foot will be poor. Therefore, the support member of the present embodiment is made of a material having higher flexibility than the material of the upper 20. In other words, the support member is made of a material that is more flexible than the material of the upper 20.

As shown in FIG. 2, the first and second support members 32 and 34 have a portion extending substantially in the vertical direction inside the upper 20 so as to abut the inner leg or the outer leg. As shown in FIG. 3, the tip portion 32h of the first support member 32 passes through the through hole 28h provided in the second forming portion 28 from the bottom to the top and projects to the upper surface of the second forming portion 28. The tip portion 32h has a fixing portion 32f fixed to the lower side or the upper side of the second forming portion 28. The tip portion 34h of the second support member 34 passes through the through hole 26h provided in the first forming portion 26 from the bottom to the top and projects to the upper surface of the first forming portion 26. The tip portion 34h has a fixing portion 34f fixed to the lower side or the upper side of the first forming portion 26. The through holes 26h and 28h may be slit-shaped openings formed in the forming portions 26 and 28.

As shown in FIG. 4, the first and second stringing structures 32g and 34g are provided at the tip portions 32h and 34h of the first and second support members 32 and 34. The stringing structures 32g and 34g are portions for passing the shoelace 60. The stringing structures 32g and 34g of the present embodiment are formed in the folded-back portion by folding back the tips of the tip portions 32h and 34h and fixing them in the middle of the first and second support members 32 and 34 by means such as stitching. It is a through hole in the front-back direction.

The fixing portions 32f and 34f may be provided on the distal end side of the stringing structures 32g and 34g, may be provided on the proximal end side of the stringing structures 32g and 34g, and the stringing structures 32g and 34g. It may be provided in. In the example of FIG. 4, the fixing portions 32f and 34f are provided on the proximal end side of the stringing structures 32g and 34g, and are sewn and fixed on the upper surfaces of the forming portions 28 and 26. Therefore, since the stringing structures 32g and 34g are supported by the through holes 26h and 28h and the fixing portions 32f and 34f at two points, deformation of the stringing structures 32g and 34g can be suppressed.

The shape of the support member will be described. As the shapes of the support members 32 and 34, various shapes can be adopted as long as they can wrap and hold the inner and outer legs. For example, the support members 32 and 34 may have a string shape, a band shape, or a composite shape thereof.

In the example of FIG. 4, the support members 32 and 34 include strip-shaped portions 32b and 34b, and front-rear width changing portions 32m and 34m whose front-rear width gradually increases downward. In this example, the front-rear width changing portions 32m and 34m are substantially trapezoidal portions whose lower side expands. By having the band-shaped portions 32b and 34b, the contact area with the inner and outer legs can be increased and the force can be dispersed. By having the front-rear width changing portions 32 m and 34 m, the contact area with the arch of the foot can be increased and the foot contact can be improved. The widths of the strips 32b and 34b in the front-rear direction may be constant or may change. The width in the front-rear direction of the strip-shaped portion 34b in FIG. 4 is substantially constant, and the width in the front-rear direction of the strip-shaped portion 32b gradually decreases toward the tip side.

The shoelace 60 will be described. The shoelace 60 alternately passes through the plurality of stringing portions 62 and the stringing structures 32g and 34g on the inner foot side and the outer foot side, and both ends are bound. In particular, as shown in FIG. 3, the shoelace 60 passes through the stringing portion 62 and continuously passes through the stringing structures 32g and 34g. That is, the shoelace 60 does not pass through the stringing portion 62 between the stringing structures 32g and 34g, but passes through the stringing structures 32g and 34g in the same loop. When the shoelace 60 passes continuously, the lace-tightening force is evenly applied to the lace-through structures 32 g and 34 g, and the imbalance of the forces applied to the inner and outer legs can be suppressed.

The tongue 70 will be described. As shown in FIGS. 1 and 2, the tongue 70 is provided on the internal space 20a side of the upper 20. The tongue 70 covers the central opening 20c inside the upper 20. The support member extends in the width direction on the upper surface side of the tongue 70. A part of the support member is interposed between the tongue 70 and the upper 20. The lace 60 is arranged on the upper surface of the tongue 70.

Next, an arrangement example of the support member will be described. The support member is a member that receives the tightening of the shoelace 60. Therefore, the support member may be arranged in consideration of the lace-tightening direction of the shoelace 60. FIG. 5 is a layout diagram showing an arrangement example of the support member according to the tightening force. In the example of FIG. 5, tensions (hereinafter, referred to as forces d1 and d2) indicated by arrows d1 and d2 are applied to the second support member 34 along the tightening direction of the shoelace 60. A slightly forward force d1 is applied to the front end of the lace-through structure 34g due to the tension of the shoelace 60. A slightly backward force d2 in the width direction is applied to the rear end of the lace-through structure 34g due to the tension of the shoelace 60.

By receiving the forces d1 and d2, the tightening force indicated by the arrow D (hereinafter referred to as the tightening force D) acts on the second support member 34 as the resultant force. The tightening force D is a force in the direction from the inner foot side to the outer foot side. The second support member 34 extends along the direction of the tightening force D in response to the tightening force D. Similarly, the first support member 32 is extended along the direction of the tightening force of the shoelace 60.

The support member is a member that receives a load from the foot during exercise. Therefore, the support member may be arranged in consideration of the direction in which the load from the foot is applied during exercise. FIG. 6 is a layout diagram showing an arrangement example of the support member according to the load from the foot. In the example of FIG. 6, the load indicated by the arrow E (hereinafter referred to as the load E) acts on the second support member 34 along the direction of the load from the foot. In order to correspond to the load E, the second support member 34 extends along the direction in which the load E from the foot is applied. Similarly, the first support member 32 is extended along the direction in which the load from the foot is applied.

Further, since the direction in which the load from the foot is applied during the exercise differs depending on the content of the exercise, the support member may be arranged according to the load direction of each target exercise. 7 to 9 are layout drawings showing an example of arranging the support members according to the movement. As shown in FIGS. 7 to 9, the support member may be arranged at a position or direction based on the load direction of each target motion.

In the example of FIG. 7, the first support member 32 on the inner foot side is arranged in front of the second support member 34 on the outer foot side, supports the raised portion of the bone in the vicinity of the ball of the toe, and is outer. The second support member 34 on the foot side supports the ridge of the bone in the portion posterior to the ball of the toe. As a result, it is possible to obtain the effect of suppressing excessive collapse of the foot during an operation in which the foot suddenly collapses to the inner leg side.

In the example of FIG. 8, the first support member 32 on the inner foot side is arranged behind the second support member 34 on the outer foot side to support the vicinity of the center of the front and rear of the arch, and the second support on the outer foot side. The member 34 supports the ridge of the bone in the vicinity of the small toe bulb. As a result, the effect of suppressing the depression of the arch and the effect of suppressing the lateral displacement of the shoe and the foot during the operation in which a large load is applied to the outer foot side of the forefoot can be obtained.

In the example of FIG. 9, the first support member 32 on the inner foot side supports the vicinity of the center of the front and rear of the arch, and the second support member 34 on the outer foot side is behind the first support member 32 on the inner foot side. It is placed and supports the bony prominence in the small toe bulb and the central region of the heel. As a result, the effect of suppressing the depression of the arch and the effect of suppressing the lateral displacement of the shoe and the foot during the operation in which a large load is applied to the outer foot side of the midfoot can be obtained.

Further, the first support member 32 on the inner leg side may be arranged at a position capable of suppressing the collapse of the arch during exercise. FIG. 10 is a layout diagram showing an arrangement example of the support member corresponding to the collapse of the arch 8a. In the example of FIG. 10, in order to prevent the arch 8a from collapsing, the first support member 32 on the inner foot side is arranged so as to be in contact with the arch 8a. When the support member comes into contact with the arch 8a, the support force indicated by the arrow F (hereinafter referred to as the support force F) is applied to the arch 8a based on the tension of the shoelace. By applying the support force F, the support member can pull up the arch 8a and suppress the collapse of the arch 8a.

The shape of the support member will be further described. If the support member is strongly pressed against the ridge of the bone such as the epiphysis or the head of the bone for a long time, the pressed portion may be hurt. Therefore, when the support member supports the ridges of the bone such as the epiphysis and the head of the bone, the rigidity of the region pressed against these portions may be low. For example, the second support member 34 on the outer foot side that supports the raised portion of the bone near the small toe ball portion may be configured to have lower rigidity than the first support member 32 on the inner foot side. In this case, as an example, the second support member 34 on the outer foot side may be made of a material having a lower rigidity than the material of the first support member 32 on the inner foot side. Further, the lower regions of the first and second support members 32 and 34 may have different elasticity.

From the same viewpoint, the rigidity reducing portion 36 having a lower rigidity than the periphery thereof may be provided in the intermediate region in the front-rear direction of the second support member 34 on the outer leg side. The rigidity reducing portion 36 is provided at a portion of the support member that comes into contact with a raised portion of the bone such as the epiphysis or the head of the bone. By having the rigidity reducing portion 36, it is possible to reduce the pressure from the support member to the raised portion of the bone such as the epiphysis and the head of the bone. 11 to 13 are shape views showing an example of the rigidity reducing portion 36 of the support member. In the example of FIG. 11, the rigidity reducing portion 36 of the second support member 34 is a flexible portion 36s formed of a material that is more flexible than the surroundings. In the example of FIG. 12, the rigidity reducing portion 36 of the second support member 34 is a plurality of slit-shaped cutout portions 36p. In the example of FIG. 13, the rigidity reducing portion 36 of the second support member 34 is a single notched portion 36q.

The stringing structures 32g and 34g will be further described. FIG. 14 is an enlarged view showing the periphery of the stringing structures 32g and 34g in an enlarged manner. The center line Lc in this figure is a center line extending in the width direction from the front and rear centers of the stringing structures 32 g and 34 g. From the viewpoint of ensuring the holdability, it is desirable that the deformation of the stringing structures 32g and 34g is small. Therefore, the support members 32 and 34 of the present embodiment have deformation suppressing structures 32k and 34k for reinforcing the stringing structures 32g and 34g.

As the deformation suppressing structures 32k and 34k, various configurations can be adopted as long as the stringing structures 32g and 34g can be reinforced. For example, 32 g and 34 g of the stringing structure of the support members may be formed of a low elasticity material having low elasticity, a material thicker than the surroundings, a material having a density higher than the surroundings, or a material harder than the surroundings. For example, reinforcing members such as eyelets made of metal or resin may be provided on the stringing structures 32 g and 34 g.

From the viewpoint of reducing the deformation of the stringing structures 32g and 34g to ensure the holdability, the stringing structures 32g and 34g have elasticity in the direction (= width direction) in which the force is received from the shoelace 60 in the other direction (=). It is desirable that it is smaller than the elasticity in the front-back direction. For example, as shown in FIG. 14, the stretchability in the width direction of the stringing structures 32 g and 34 g may be smaller than the stretchability in the width direction of the forming portions 26 and 28. In particular, the widthwise elasticity of the stringing structures 32g and 34g at the front-rear center may be smaller than the widthwise elasticity of the forming portions 26 and 28.

FIG. 15 is an enlarged view showing the periphery of the stringing structures 32g and 34g of the first and second forming portions 26 and 28 in an enlarged manner. From the viewpoint of suppressing deformation of the stringing structures 32g and 34g to ensure holdability, of the first and second forming portions 26 and 28, the fixed region to which the first and second stringing structures 32g and 34g are fixed. The 30d may be provided with a low expansion / contraction portion 30e having a lower elasticity in the width direction than the surroundings.

As an example, the fixed region 30d is the first and second from the front end of the tip portions 32h and 34h of the front support member (second support member 34 in the example of FIG. 15) of the first and second forming portions 26 and 28. It may be a portion between the rear ends of the support members 32 and 34 (the first support member 32 in the example of FIG. 15). The entire fixed region 30d may be the low expansion / contraction portion 30e, or a part of the fixed region 30d may be the low expansion / contraction portion 30e.

Further, the low expansion / contraction portion 30e can counter the tension on the fixed portions of the tip portions 32h and 34h when a tension is applied to the fixed portions of the tip portions 32h and 34h toward the base end portions 32j and 34j. The upper 20 may be continuously provided from the viewpoint of exerting a sufficient drag force. As an example, as shown in FIG. 15, the low expansion / contraction portion 30e is continuously provided from the fixed portions of the tip portions 32h and 34h of the first and second forming portions 26 and 28 to the inner foot portion 22 and the outer foot portion 24. May be done.

As shown by the broken line in FIG. 15, the low expansion / contraction portion 30e on the inner foot portion 22 side extends from the first forming portion 26 to the inner foot portion 22 in the front-rear width of the tip portion 34h of the second support member 34. It is provided in a belt-shaped region extending to the lower base end portion (portion fixed to the sole 10) of 22. Further, the low expansion / contraction portion 30e on the outer foot portion 24 side extends from the second forming portion 28 to the outer foot portion 24 in the front-rear width of the tip portion 32h of the first support member 32, and is the lower base end of the outer foot portion 24. It is provided in a band-shaped region extending to a portion (a portion fixed to the sole 10). That is, the lower end 30f of the low expansion / contraction portion 30e extends to a portion fixed to the sole 10 of the inner foot portion 22 and the outer foot portion 24.

In this case, when tension is applied to the fixed portions of the tip portions 32h and 34h toward the base end portions 32j and 34j of the first and second support members 32 and 34, the low expansion and contraction portion extending to the upper 20. With 30e, it is possible to apply a drag force capable of resisting the tension to the fixed portions of the tip portions 32h and 34h.

For example, the low-stretch portion 30e may be formed of a low-stretch material having a lower elasticity than the circumference of the low-stretch portion 30e, a material thicker than the circumference, a material having a density higher than the circumference, or a material harder than the circumference. ..

In particular, among the first and second forming portions 26 and 28, the corresponding region 30c corresponding to the front-rear center of the first and second stringing structures 32g and 34g has a low stretching portion 30e having a lower elasticity in the width direction than the surroundings. May be provided. That is, of the first and second forming portions 26 and 28, the corresponding region 30c (the region near the center line Lc in FIG. 15) may be the low expansion / contraction portion 30e. Of the first and second forming portions 26 and 28, the front-rear range of the fixed portions 32f and 34f may be the low expansion / contraction portion 30e.

Next, the rigidity of the support member will be described. FIG. 16 is a graph showing the result of the tensile test of the sample T of the support member. In this graph, the horizontal axis shows the amount of elongation as a percentage of the maximum amount of elongation, and the vertical axis shows the load. This graph shows the test results for the load in the direction received from the foot for the sample T of the support member formed from the predetermined material into the predetermined shape. If the load (= rigidity) with respect to the amount of elongation is too high, the fit will be impaired, and if the load (= rigidity) with respect to the amount of elongation is too low, the stability will be impaired.

From the viewpoint of ensuring the fit and stability, the present inventors have investigated the rigidity (initial rigidity) when the elongation amount is near zero and the rigidity when the elongation amount is 100%. Based on this study, the fit and stability were obtained in the range of initial rigidity of 0.01 N / mm or more and 0.15 N / mm or less, and the rigidity of 0.5 N / mm or more and 10 N / mm or less when the elongation amount was 100%. I got the suggestion that it can be secured. Samples are not limited to the above and are selected according to the desired balance of fit and stability.

With reference to FIG. 17, an example of the hold operation during exercise of the shoe 100 configured as described above will be described. FIG. 17 is a schematic view schematically showing the force acting on each part of the shoe 100 when a load is applied.
(1) When a load is applied to the shoe 100, an outward load from the foot (hereinafter referred to as a load G) is applied to the support member 34 on the outer foot side, as shown by an arrow G.
(2) When a load G is applied to the support member 34, an outward force is applied to the first forming portion 26 of the upper 20 to which the tip portion 34h of the support member 34 is fixed.

(3) When an outward force is applied to the first forming portion 26, an outward force acts on the inner foot portion 22 of the upper 20.
(4) As a result, the inner foot is supported by the inner foot portion 22, the outer foot is supported by the support member 34, and the entire foot is firmly held, so that the shake of the foot can be reduced.

Further, even when the shoe 100 receives an inward load from the foot, the inner foot is supported by the support member 32 and the outer foot is supported by the outer foot portion 24 by the same mechanism of action, and the entire foot is firmly held. Therefore, it is possible to reduce the blurring of the foot. In other words, stability can be ensured by the dynamic input and transmission of force during exercise without completely restraining the foot when stationary. In addition, if the patient is not completely restrained when stationary, the degree of freedom of the foot can be secured when stationary or walking, and a comfortable fit can be obtained. Further, the balance between the degree of freedom of the foot at rest and the stability at the time of exercise can be adjusted by appropriately selecting the rigidity of the support member according to the purpose of use of the shoe.

An outline of one aspect of the present invention will be described. In the shoe 100 of a certain aspect of the present invention, a stringing portion 62 is formed in each of the shoes 100, and a first forming portion provided on the inner foot side with a central opening 20c formed forward from the foot insertion portion 20b of the upper 20. The second forming portion 28 provided on the 26 and the outer foot side and the tip portion 32h are fixed to the second forming portion 28, the first stringing structure 32g is provided on the tip portion 32h, and the inner foot is provided inside the upper 20. The first support member 32 extending downward so as to abut against the first support member 32 and the tip portion 34h are fixed to the first forming portion 26, the tip portion 34h is provided with the second stringing structure 34g, and the outside inside the upper 20. It includes a second support member 34 that extends downward so as to come into contact with the foot, and a shoelace 60 that passes through the stringing portion 62 and continuously passes through the first and second stringing structures 32g and 34g. ..

According to this aspect, by fixing the tip of the support member to the upper 20, the force for tightening the foot can be changed between exercise and rest, and the fit feeling at rest and the holdability during exercise can be improved. ..

The first and second forming portions 26 and 28 may have reinforcing structures 26s and 28s for reinforcing the stringing portion 62. In this case, since the stringing portion 62 is reinforced by the reinforcing structures 26s and 28s, the relief of tension during high-strength operation is reduced and the holdability can be ensured.

As described above, the reinforcing structures 26s and 28s may be formed of a low elasticity material having a lower elasticity than the surroundings, a material thicker than the surroundings, a material having a higher density than the surroundings, or a material harder than the surroundings. .. Further, for example, the edge of the hole of the string threading portion 62 is reinforced with metal or resin eyelets, hooks, etc. so that the edge of the hole through which the shoelace 60 of the string threading portion 62 is passed is made more rigid than the surroundings. A member may be provided, or a thick portion may be provided in which the edge of the hole of the stringing portion 62 is made thicker than the periphery by overhanging or the like. Further, a plurality of these reinforcing structures may be provided in combination.

The first and second support members 32 and 34 may have deformation suppressing structures 32k and 34k for reinforcing the first and second stringing structures 32g and 34g. In this case, the deformation of the stringing structures 32g and 34g can be suppressed, and the holdability is improved.

The first and second support members 32 and 34 may include strips 32b and 34b. In this case, a large area of the foot arch can be supported.

Of the first and second forming portions 26 and 28, the corresponding region 30c corresponding to the front-rear center of the first and second stringing structures 32g and 34g is provided with a low expansion and contraction portion 30e having lower elasticity in the width direction than the periphery. May be done. In this case, since the deformation of the corresponding region 30c is suppressed, the relief of tension is reduced and the holdability is improved.

Of the first and second forming portions 26 and 28, the fixed region 30d to which the first and second stringing structures 32g and 34g are fixed is provided with a low stretching portion 30e having a lower elasticity in the width direction than the surroundings. May be good. In this case, since the deformation of the fixed region 30d is suppressed, the relief of tension is reduced and the holdability is improved.

A rigidity reducing portion 36 having a rigidity lower than that of the surroundings may be provided in at least one of the first and second support members 32 and 34 in the intermediate region in the front-rear direction. In this case, the support member can be provided with flexibility and strength.

The rigidity reducing portion 36 may include a flexible portion 36s or a notched portion 36p that is more flexible than the surroundings. In this case, the support member can be provided with flexibility and strength.

The first and second support members 32 and 34 may have front-rear width changing portions 32m and 34m whose front-rear width gradually increases downward. In this case, the area of the contact portion with the arch of the foot can be increased to improve the foot contact.

The lower regions of the first and second support members 32 and 34 may have different elasticity. In this case, the holdability can be adjusted separately for the inner and outer legs.

The first and second support members 32 and 34 may be made of a material having higher flexibility than the material of the upper 20. In this case, it is possible to improve the foot contact while ensuring the holdability by the support member.

The examples of the embodiments of the present invention have been described in detail above. All of the above-described embodiments are merely specific examples for carrying out the present invention. The content of the embodiment does not limit the technical scope of the present invention, and many design changes such as changes, additions, and deletions of components are made without departing from the idea of the invention defined in the claims. It is possible. In the above-described embodiment, the contents that can be changed in such a design are described with notations such as "in the embodiment" and "in the embodiment", but the contents are designed without such notations. It's not that changes aren't tolerated. Further, the hatching attached to the cross section of the drawing does not limit the material of the object to which the hatching is attached.

A modified example will be described below. In the drawings and description of the modified examples, the same or equivalent components and members as those in the embodiment are designated by the same reference numerals. The description overlapping with the embodiment will be omitted as appropriate, and the configuration different from the embodiment will be mainly described.

[First modification]
The configuration of the shoe 200 according to the first modification will be described. FIG. 18 is a plan view schematically showing the shoe 200 according to the first modification, and corresponds to FIG. In this figure, the description of the shoelace 60 is omitted for ease of understanding. FIG. 19 is a sectional view taken along line BB of the shoe 200, which corresponds to FIG. FIG. 20 is a developed view of the tongue 70 of the shoe 200 developed in a plane. The shoe 200 according to the first modification has a different configuration of the tongue 70 from the shoe 100 according to the embodiment, and the other configurations are the same. Therefore, the configuration of the tongue 70 will be mainly described.

The tongue 70 covers the central opening 20c inside the upper 20. The tongue 70 differs from the embodiment in that it has a protrusion 70e that protrudes in the width direction. The protrusion 70e extends downward on the inside of the first and second support members 32 and 34 (on the side opposite to the upper 20). That is, the support members 32 and 34 are sandwiched between the protrusion 70e and the upper 20. By interposing the protruding portion 70e between the support member and the foot, it is possible to prevent the support members 32 and 34 from directly contacting the arch of the foot and improve the foot contact.

The lower end 70j of the protruding portion 70e may extend below the base end portions 32j, 34j of the support members 32, 34. That is, the base end portions 32j and 34j of the support members 32 and 34 are arranged above the lower end 70j of the protruding portion 70e. In this case, the area where the support members 32 and 34 come into direct contact with the arch of the foot can be reduced.

The lower end 70j of the protrusion 70e may be a free end that is not fixed, may be fixed to the lower part of the outsole 12, the insole 14, or the upper 20, or may be fixed between them. The lower end 70j of this modification is fixed between the upper 20 and the insole 14 from the viewpoint of suppressing the forward movement of the tongue 70 and the support members 32 and 34 when the foot is put into the shoe 100. The base end portions 32j and 34j of the support members 32 and 34 may be fixed in the middle of the protruding portion 70e. In this case, the deviation of the positional relationship between the support members 32 and 34, the protrusion 70e, and the upper 20 can be reduced.

As shown by the solid line in FIG. 20, the protruding portion 70e may have a shape that overlaps a part of the first and second support members 32 and 34 in a plan view, or as shown by the broken line in FIG. , The shape may overlap with all of the first and second support members 32 and 34 in a plan view. That is, the protruding portion 70e has a shape including a part or all of the first and second support members 32 and 34 in a plan view.

As shown in FIG. 18, a position regulating portion 72 for regulating the positions of the first and second support members 32 and 34 is provided on the upper surface of the tongue 70 of this modified example. By having the position regulating portion 72, it is possible to suppress the support member from moving in the front-rear direction and reduce the deviation of the positional relationship between the support members 32 and 34 and the upper 20.

Although the configuration of the position regulating portion 72 is not limited, the position regulating portion 72 of this modification extends in the front-rear direction and is a band-shaped member fixed to the tongue 70 at a plurality of positions separated in the front-rear direction by means such as suturing. Is. The position regulating portion 72 is provided at the center of the tongue 70 in the width direction, and forms a gap 72s between the tongue 70 and the upper surface of the tongue 70 for the support member to pass in the width direction. By passing the support member through the gap 72s, the position of the support member in the front-rear direction is restricted to the front-rear range of the gap 72s. It is not essential that the position regulating portion 72 is provided at the center of the tongue 70 in the width direction, and the position regulating portion 72 may be arranged at a position closer to the inner foot side or the outer foot side from the center in the width direction.

The first and second support members 32 and 34 may be passed through one gap 72s, but in this modification, they are passed through separate gaps 72s. In this case, the positions of the first support member 32 and the second support member 34 can be arranged at more appropriate positions, respectively. Further, both the first and second support members 32 and 34 may be passed through the single gap 72s, or only one of the support members may be passed through. The gap 72s may or may not pass through the shoelace 60.

[Second modification]
The configuration of the shoe 300 according to the second modification will be described. FIG. 21 is a plan view schematically showing the shoe 300 according to the second modification, and corresponds to FIG. FIG. 22 is a sectional view taken along line MM of the shoe 300. FIG. 23 is a sectional view taken along line NN of the shoe 300. The shoe 300 according to the second modification is different from the shoe 100 according to the embodiment in the configurations of the first support member 332 and the second support member 334, and the other configurations are the same. Therefore, the configurations of the first and second support members 332 and 334 will be mainly described.

The first support member 332 of this modification is different from the first support member 32 of the embodiment in that it does not have a tip portion 32h but has a folded portion 332p and an outer foot side base end portion 332n. The configuration of is similar. The first support member 332 is a member that extends from the inner foot side base end portion 332j on the inner foot lower side to the outer foot side base end portion 332n on the outer foot lower side, and a folded-back portion 332p is formed in the middle. The folded-back portion 332p passes through the through hole 28h provided in the second forming portion 28 from the bottom to the top and projects to the upper surface of the second forming portion 28. The folded-back portion 332p is provided with a first string threading structure 332g.

The inner foot side base end portion 332j corresponds to the base end portion 32j, and in the example of FIG. 22, it is fixed between the upper 20 and the insole 14 on the inner foot side. In the example of FIG. 22, the base end portion 332n on the outer foot side is fixed between the upper 20 and the insole 14 on the outer foot side. The outer foot side base end portion 332n may be fixed to the lower part of the outsole 12, the insole 14 or the upper 20, or may be fixed between them.

The first support member 32 of the embodiment and the first support member 332 of this modified example have an upper 20 having one end (base end portion 32j, inner foot side base end portion 332j) on the inner foot side. And the other end (tip 32h, outer foot side base end 332n) is fixed between the second forming part 28 or the upper 20 and the insole 14 on the outer foot side. There is. That is, it can be said that these are common technical ideas in that both ends of the support member are fixed to either end.

As shown in FIG. 21, in the vicinity of the outer foot side base end portion 332n of the first support member 332, a front-rear width changing portion 332m whose front-rear width gradually increases downward is provided.

The folded-back portion 332p may be fixed to the second forming portion 28, but in this example, it is not fixed. Therefore, by tightening the shoelace 60, the position of the folded portion 332p on the first support member 332 changes.

The second support member 334 of this modification is different from the second support member 34 of the embodiment in that it does not have a tip portion 34h but has a folded portion 334p and an inner foot side base end portion 334n. The configuration of is similar. The second support member 334 is a member extending from the outer foot side base end portion 334j on the outer foot lower side to the inner foot side base end portion 334n on the inner foot lower side, and a folded-back portion 334p is formed in the middle. The folded-back portion 334p passes through the through hole 26h provided in the first forming portion 26 from the bottom to the top and projects to the upper surface of the first forming portion 26. The folded-back portion 334p is provided with a second stringing structure 334g.

The outer foot side base end portion 334j corresponds to the base end portion 34j, and in the example of FIG. 23, it is fixed between the upper 20 and the insole 14 on the inner foot side. In the example of FIG. 23, the inner foot side base end portion 334n is fixed between the upper 20 and the insole 14 on the outer foot side. The inner foot side base end portion 334n may be fixed to the lower part of the outsole 12, the insole 14 or the upper 20, or may be fixed between them.

The second support member 34 of the embodiment and the second support member 334 of this modified example have an upper 20 having one end (base end 34j, outer foot side base end 334j) on the outer foot side. And the other end (tip 34h, inner foot side base end 334n) is fixed between the first forming part 26 or the upper 20 and the insole 14 on the inner foot side. There is. That is, it can be said that these are common technical ideas in that both ends of the support member are fixed to either end.

As shown in FIG. 21, in the vicinity of the inner foot side base end portion 334n of the second support member 334, a front-rear width changing portion 334 m whose front-rear width gradually increases downward is provided.

The folded-back portion 334p may be fixed to the first forming portion 26, but in this example, it is not fixed. Therefore, by tightening the shoelace 60, the position of the folded portion 334p on the second support member 334 changes.

The second modification has the same action / effect as that of the above-described embodiment. In addition, the first support member 332 and the second support member 334, which are arranged at positions separated in the front-rear direction, support the inner foot and the outer foot, respectively, so that a more appropriate support force is given along the shape of the foot. it can.

[Third variant]
The configuration of the shoe 400 according to the third modification will be described. FIG. 24 is a plan view schematically showing the shoe 400 according to the third modification, and corresponds to FIG. FIG. 25 is a sectional view taken along line PP of the shoe 400. The shoe 400 according to the third modification has a different configuration of the support members 432 on both sides from the shoe 100 according to the embodiment, and the other configurations are the same. That is, the shoe 400 has both side support members 432 instead of the first and second support members. Therefore, the configuration of the support member 432 on both sides will be mainly described.

The double-sided support member 432 of this modification does not have the tip portion 32h with respect to the first support member 32 of the embodiment, and the first and second folded portions 432p, 432q, the inner foot side base end portion 432j, and The other configurations are the same, except that they have a base end portion 432n on the outer foot side. The both side support member 432 is a member extending from the inner foot side base end portion 432j on the inner foot lower side to the outer foot side base end portion 432n on the outer foot lower side, and the first and second folded portions 432p and 432q are formed in the middle. To. The first folding portion 432p is provided on the side opposite to the outer foot side base end portion 432n of the second folding portion 432q, and the second folding portion 432q is the inner foot side base end portion 432j of the first folding portion 432p. It is provided on the opposite side.

The first folded portion 432p passes through the through hole 26h provided in the first forming portion 26 from the bottom to the top and projects to the upper surface of the first forming portion 26. The first folding portion 432p is provided with a first stringing structure 432g. The second folded portion 432q passes through the through hole 28h provided in the second forming portion 28 from the bottom to the top and projects to the upper surface of the second forming portion 28. The second folded-back portion 432q is provided with a second stringing structure 432k.

The inner foot side base end portion 432j and the outer foot side base end portion 432n may be fixed to the lower part of the outsole 12, the insole 14, or the upper 20, or may be fixed between them. In the example of FIG. 25, the inner foot side base end portion 432j is fixed between the upper 20 and the insole 14 on the inner foot side, and the outer foot side base end portion 432n is fixed between the upper 20 and the insole 14 on the outer foot side. It is fixed between.

In the example of FIG. 24, the through hole 26h and the through hole 28h are arranged in the first forming portion 26 and the second forming portion 28 in front of the frontmost one of the plurality of stringing portions 62. Therefore, the first and second folded portions 432p and 432q and the first and second stringing structures 432g and 432k are arranged in front of the plurality of stringing portions 62. The shoelace 60 continuously passes through the first and second lace-through structures 432g and 432k.

In addition, the first support member 32 of the embodiment and the both side support members 432 of this modified example have one end (base end portion 32j, inner foot side base end portion 432j) of the upper 20 on the inner foot side. It is fixed between the insoles 14 and the like, and the other end (tip 32h, outer foot side base end 432n) is fixed between the second forming portion 28 or the upper 20 and the insole 14 on the outer foot side. .. That is, it can be said that these are common technical ideas in that both ends of the support member are fixed to either end.

As shown in FIG. 24, a front-rear width changing portion 432s whose front-rear width gradually increases downward is provided in the vicinity of the inner foot side base end portion 432j and the outer foot side base end portion 432n of the support members 432 on both sides. Has been done.

The first and second folded portions 432p and 432q may be fixed to the first and second forming portions 26 and 28, but are not fixed in this example. Therefore, by narrowing the shoelace 60, the positions of the first and second folded portions 432p and 432q on the support members 432 on both sides change.

The third modification has the same action / effect as that of the above-described embodiment. In addition, since the double-sided support member 432 supports the inner foot and the outer foot as an alternative to the first support member and the second support member, a more appropriate support force can be imparted along the shape of the foot.

[Other variants]
In the description of the embodiment, an example in which the support member is provided inside the upper 20 is shown, but the support member may be provided outside the upper 20. In this case, the support member indirectly abuts the inner and outer legs.

In the description of the embodiment, an example in which the stringing portion 62 is a through hole has been shown, but the present invention is not limited to this, and the stringing portion may adopt various structures. For example, the stringing portion may be a metal or resin eyelet, or may be a metal or resin hook.

In the description of the embodiment, an example is shown in which the stringing structures 32g and 34g are formed by folding back the tip of the support member, but the present invention is not limited to this, and various structures can be adopted as the stringing structure. .. For example, the stringing structure may be an eyelet made of metal or resin, a vertical through hole, or a hook made of metal or resin.

In the description of the embodiment, an example is shown in which the support member is integrally formed from the base end portions 32j and 34j to the tip end portions 32h and 34h, but the present invention is not limited to this, and the support member is formed separately. A plurality of members may be connected and configured. Further, the inner portion and the outer portion of the support member forming portions 26 and 28 may not be connected to each other, and the inner portion and the outer portion may be separately fixed to the upper 20.

In the description of the embodiment, an example in which the rigidity reducing portion 36 is provided on the second support member 34 is shown, but the rigidity reducing portion 36 may be provided on the first support member 32, or the first and second support members 36 may be provided. It may be provided on both the support members 32 and 34. In this case, the rigidity reducing portions 36 of the first and second support members 32 and 34 may have different shapes and configurations.

Each of the above-described modifications has the same effects and effects as those of the above-described embodiment.

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

The present invention can be applied to shoes with respect to shoes.

10 sole, 20 upper, 20a internal space, 20c central opening, 20d foot insertion part, 22 inner foot part, 24 outer foot part, 26 first formation part, 26s reinforcement structure, 28 second formation part, 30e low expansion and contraction part , 32 1st support member, 32f fixed part, 32g stringing structure, 32h tip, 32j base end, 32k deformation suppression structure, 32m front-rear width change part, 34 2nd support member, 34f fixed part, 34g stringing structure , 34h tip, 34m front-back width change part, 36 rigidity reduction part, 60 shoelace, 62 stringing part, 70 tongue, 70e protrusion, 70j lower end, 72 position regulation part, 100, 200 shoes.

Claims (11)

A first forming portion provided on the inner foot side and a second forming portion provided on the outer foot side across the central opening formed forward from the foot insertion portion of the upper, and a second forming portion provided.
A first support member whose tip is fixed to the second forming portion and extends downward so as to abut on the inner leg,
A second support member whose tip is fixed to the first forming portion and extends downward so as to abut on the outer leg,
Shoes characterized by being equipped with. The shoe according to claim 1, wherein the first and second support members include a band-shaped portion. The shoe according to claim 1 or 2, wherein a rigidity reducing portion having a rigidity lower than that of the surroundings is provided in at least one intermediate region in the front-rear direction of the first and second support members. The shoe according to claim 3, wherein the rigidity reducing portion includes a notch portion or a flexible portion that is more flexible than the surroundings. The shoe according to any one of claims 1 to 4, wherein the first and second support members have a front-rear width changing portion in which the front-rear width gradually increases downward. The shoe according to any one of claims 1 to 5, wherein the lower region of the first and second support members has elasticity different from each other. The shoe according to any one of claims 1 to 6, wherein the first and second support members are made of a material having higher flexibility than the material of the upper. The first aspect of the present invention, wherein the tongue has a tongue that covers the central opening of the upper, and the tongue has a tongue that protrudes in the width direction and extends downward inside the first and second support members. The shoes described in any of 7. The shoe according to claim 8, wherein the base end portion of the first and second support members is arranged above the lower end portion of the protruding portion. The shoe according to claim 8 or 9, wherein a position regulating portion for regulating the positions of the first and second support members is provided on the upper surface of the tongue. A first stringing structure for passing the shoelace is provided on the tip end side of the first support member, and the first support member is formed on the tip end side of the first stringing structure. Fixed to the part
A second stringing structure for passing the shoelace is provided on the tip end side of the second support member, and the second support member is formed on the tip end side of the second stringing structure. The shoe according to any one of claims 1 to 10, wherein the shoe is fixed to a portion.

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