Boot

Abstract

A shoe comprising: an upper 14; a fastener 42 that is located above a wearer's instep and can apply a fastening force, to the upper 14, that pulls sections 32, 34 towards the fastener, said sections being on both sides of the upper 14 in the foot width direction; and an arch support 84 provided such that the fastening force applied to a first side section 32 of the upper 14 in the foot width direction can be transmitted thereto and being capable of supporting, from below, a vertical arch of the foot of the wearer on one side in the foot width direction. The upper 14 is provided on one side in the foot width direction, relative to the arch support 84, and has a fastening force transmission section 86 provided such that the fastening force applied to the first side section 32 can be transmitted thereto. The fastening force transmission section 86 has higher stretchability in the foot peripheral direction than the arch support 84.

Description

Technical Field

[0001] The present invention relates to shoes.

Background Art

[0002] In ensuring the stability of running motion, suppression of excessive pronation is desired. In order to achieve this, when the wearer's weight is applied to the foot, suppression of the collapse of the longitudinal arch is effective. For example, Patent Document 1 describes shoes in which a reinforcing material is disposed inside the upper and an attempt is made to suppress the collapse of the longitudinal arch with the reinforcing material.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] As a result of further study, the present inventor obtained the following new recognition. In order to suppress excessive pronation, a method of providing an arch support portion in a shoe to which the tightening force of a fastener such as a shoelace is transmitted and supporting the longitudinal arch from below by the arch support portion can be considered. In this case, due to the relationship of integrating the arch support portion with the upper, the tightening force to be applied to the arch support portion can be dispersed and transmitted to the upper. For this reason, there is a possibility that sufficient tightening force cannot be transmitted to the arch support portion due to the upper strongly resisting at locations other than the arch support portion, and the longitudinal arch cannot be firmly supported by the arch support portion. Against the background of such problems, shoes that attempt to suppress the collapse of the longitudinal arch have not yet been proposed.

[0005] One aspect of the present invention has been made in view of such problems, and one of its objects is to provide shoes capable of suppressing the collapse of the longitudinal arch of the foot.

Means for Solving the Problem

[0006] One aspect of the present invention for solving the above problems is a shoe. This shoe includes an upper, a fastener that is disposed above the instep of the wearer's foot and can apply a tightening force to draw the portions on both sides in the foot width direction of the upper, and an arch support portion that is provided so as to be able to transmit the tightening force applied to the first side portion in the foot width direction of the upper and can support the longitudinal arch of the wearer's foot on the first side in the foot width direction from below. The first side portion is provided on the first side in the foot width direction with respect to the arch support portion, and has a tightening force transmission portion provided so as to be able to transmit the tightening force applied to the first side portion. The tightening force transmission portion is set to have higher stretchability in the foot circumference direction than the arch support portion.

[0007] Another aspect of the present invention for solving the above problems is a shoe. This shoe includes an upper, a fastener that is disposed above the instep of the wearer's foot and can apply a tightening force to draw the portions on both sides in the foot width direction of the upper, and an arch support portion that is provided so as to be able to transmit the tightening force applied to the first side portion in the foot width direction of the upper and can support the longitudinal arch of the wearer's foot on the first side in the foot width direction from below. The first side portion is provided on the first side in the foot width direction with respect to the arch support portion, and has a tightening force transmission portion provided so as to be able to transmit the tightening force applied to the first side portion. The tightening force transmission portion is configured such that when an attempt is made to tighten the fastener, the tightening force is transmitted later than the arch support portion.

Advantages of the Invention

[0008] According to the shoe of the present invention, it is possible to suppress the collapse of the longitudinal arch of the foot.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Embodiments for Carrying Out the Invention

[0010] Hereinafter, an example of an embodiment of the present invention will be described. The same reference numerals are given to the same components, and duplicate explanations are omitted. In each drawing, for the sake of convenience of explanation, a part of the components is appropriately omitted, or their dimensions are appropriately enlarged or reduced. The drawings are to be viewed in accordance with the direction of the reference numerals. In this specification, "fixed" and "contact" include cases where the two directly satisfy the mentioned conditions, as well as cases where they are satisfied via other members, unless otherwise specified.

[0011] The terms used in this specification will be explained. The positional relationship in a plan view of the shoe 10 will be explained with reference to FIG. 1. FIG. 1 is a plan view in which a foot skeleton model is superimposed on the inner bottom surface 18a of the accommodation chamber 18 in the upper 14. Assume a virtual rectangle 16 whose four sides are circumscribed on the inner bottom surface 18a of the accommodation chamber 18 and whose short side length La is minimized. The direction along the long side of this virtual rectangle 16 is defined as the "front-rear direction X", and the direction along its short side is defined as the "foot width direction Y". The front side in the "front-rear direction X" is the toe side of the foot, and the rear side is the heel side of the foot. The inner side of the foot in the "foot width direction Y" is the first toe side of the foot, and the outer side of the foot is the fifth toe side of the foot. The "front-rear direction X" is also a direction assumed to be parallel to a straight line passing through the midpoint N3 of the center N1 of the ball of the big toe and the center N2 of the ball of the little toe and the center N4 of the heel when such a straight line is assumed. Also, the direction of rotation around the axis in the foot length direction X is defined as the "foot circumference direction". Also, a line along the front-rear direction X passing through the position bisecting the short side length La of the aforementioned virtual rectangle 16 is referred to as the "center line CL1" of the shoe 10.

[0012] The human foot is mainly composed of the cuneiform bone Ba, cuboid bone Bb, navicular bone Bc, talus bone Bd, calcaneus bone Be, midfoot bone Bf, and phalanx bone Bg. The joints of the foot include the MP joint Ja, Lisfranc joint Jb, and Chopart joint Jc.

[0013] The "midfoot of the foot" refers to the portion from the MP joint Ja to the Chopart joint Jc. The "longitudinal arch of the foot" refers to either the "medial longitudinal arch" or the "lateral longitudinal arch". The "medial longitudinal arch" refers to the area in the medial side of the foot, which is in the range from the calcaneus Be through the talus Bd, navicular Bc, medial cuneiform Ba to the ball of the big toe of the first metatarsal bone Bf. The "lateral longitudinal arch" refers to the area in the lateral side of the foot, which is in the range from the calcaneus Be through the cuboid Bb to the ball of the little toe of the fifth metatarsal bone Bf.

[0014] The "midfoot" related to the components of the shoe is the area where the midfoot of the foot is assumed to overlap in plan view. Let the straight line along the foot width direction Y located in the range S1 of 50% to 75% from the heel side with respect to the total length Lb of the shoe 10 be line P. Let the straight line along the foot width direction Y located in the range S2 of 20% to 45% from the heel side with respect to the total length Lb of the shoe 10 be line Q. At this time, the "midfoot" related to the components of the shoe refers to the area from line P to line Q in plan view.

[0015] In the following embodiments, an example will be described in which, among both sides in the foot width direction, the first side is the medial side of the foot and the second side is the lateral side of the foot. Also, in the embodiments, an example will be described in which, among both sides in the foot circumference direction, the first side is the eversion direction and the second side is the inversion direction. Also, in the embodiments, a shoe that can suppress excessive pronation in the inversion direction will be described.

[0016] (First Embodiment) Refer to FIGS. 2 to 4. The shoe 10 of the first embodiment will be described. A right-foot shoe is illustrated, but the following description is equally applicable to a left-foot shoe. The shoe 10 is used, for example, for running. This running includes, in addition to the operation of running on a normal road surface, the operations of running in track and field events such as short-distance running and ball games, as well as the operation of walking.

[0017] The shoe 10 includes a sole 12 that supports the foot F of the wearer. The sole 12 of the present embodiment includes an outsole that contacts the ground. In addition to this, the sole 12 may include any one or more of, for example, a midsole, an insole, and an inner sole laminated above the outsole.

[0018] The shoe 10 includes an upper 14 that wraps around the foot F of the wearer. The upper 14 forms an accommodation chamber 18 that accommodates the foot between the upper 14 and the sole 12. The upper 14 covers the range from the toe of the foot to a part of the instep from above, covers the range from the toe of the foot to the heel on both sides in the foot width direction Y, and covers the heel from behind. The lower peripheral edge of the upper 14 is fixed to the sole 12 by adhesion, sewing, or the like.

[0019] The upper 14 is made of, for example, a fabric such as a woven fabric or a knitted fabric, or a leather material such as synthetic leather or artificial leather. For this, a material having flexibility that conforms to the shape of the foot is used. The upper 14 of the present embodiment has a multilayer structure including an inner layer material 20 that forms the accommodation chamber 18 and an outer layer material 22 disposed outside the inner layer material 20.

[0020] A shoe opening 24 is formed in the upper 14 as a first opening that opens upward at the rear of the upper 14. When the shoe 10 is in a worn state (hereinafter simply referred to as a worn state), a part of the foot such as the ankle of the foot F is inserted through the shoe opening 24.

[0021] A throat portion 26 is formed in the upper 14 as a second opening that is continuous with the shoe opening 24 and extends forward from the shoe opening 24. The throat portion 26 includes an inner foot edge 28 (first side edge) provided on the inner side of the foot in the foot width direction Y and an outer foot edge 30 (second side edge) provided on the outer side of the foot. Each edge 28, 30 is provided so as to extend from the rear end portion to the front end portion of the throat portion 26.

[0022] The upper 14 includes an inner foot portion 32 (first side portion) provided on the inner side of the foot in the foot width direction Y and an outer foot portion 34 (second side portion) provided on the outer side of the foot in the foot width direction Y. In the longitudinal range where the throat portion 26 is provided, the inner foot portion 32 of the present embodiment is constituted by the portion below the inner edge 28 of the throat portion 26, and in the other longitudinal ranges, it is constituted by the portion on the inner side of the aforementioned center line CL1 (not shown). The outer foot portion 34 is constituted by the portion below the outer edge 30 of the throat portion 26 in the longitudinal range where the throat portion 26 is provided, and in the other longitudinal ranges, it is constituted by the portion on the outer side of the center line CL1 (not shown).

[0023] The shoe 10 of the present embodiment includes a decorative material 36 fixed to the throat portion 26. The decorative material 36 is provided along the throat portion 26 so as to be continuous from the front end portion of the throat portion 26 to the opening edge 24 via the edges 28 and 30 on both sides in the foot width direction. The decorative material 36 is constituted by using, for example, a tape material, artificial leather, etc. The decorative material 36 is constituted by using a material with less stretchability than the upper 14 and is fixed to the upper 14 by adhesion, sewing, etc.

[0024] In a cross section orthogonal to the longitudinal direction X of the upper 14, the position located most on the inner side of the foot is defined as the innermost end 38, the position located most on the outer side of the foot is defined as the outermost end 40, and the straight line passing through the innermost end 38 and the outermost end 40 is called the "reference line L1".

[0025] The shoe 10 includes a fastener 42 disposed above the instep of the wearer's foot. The fastener 42 can apply a fastening force to the upper 14 that draws the inner foot portion 32 and the outer foot portion 34 of the upper 14 together. The fastener 42 applies an outward-turning fastening force Fa1 to the inner foot portion 32 of the upper 14 and an inward-turning fastening force Fa2 to the outer foot portion 34 of the upper 14. The fastener 42 of the present embodiment applies an outward-turning fastening force Fa1 to the inner foot edge 28 of the throat portion 26 and an inward-turning fastening force Fa2 to the outer foot edge 30 of the throat portion 26. The upper 14 can fit the foot by the fastening force being applied by the fastener 42. The fastener 42 of the present embodiment is a shoelace, but its specific example is not particularly limited as long as it can apply a fastening force, and it may be a belt, a wire, or the like.

[0026] Fastener insertion portions 44 (hereinafter simply referred to as insertion portions 44) through which the fastener 42 is inserted are provided in portions 32 and 34 on both sides in the foot width direction of the upper 14. In the present embodiment, a plurality of insertion portions 44 are provided in a row at intervals in the front-rear direction in each of the inner foot portion 32 and the outer foot portion 34 of the upper 14. In the present embodiment, the insertion portions 44 are provided at the edges 28 and 30 of the throat portion 26. The insertion portion 44 of the present embodiment is a through hole through which the fastener 42 is inserted, but in addition to this, eyelets, shoelace hooks, or the like may also be used.

[0027] In the present embodiment, some of the insertion portions 44 are provided in the inner foot portion 32 or the outer foot portion 34 of the upper 14 itself, and some of the insertion portions 44 are provided in a separate member (a support member 50 described later) from the upper 14 provided in the inner foot portion 32. The insertion portions 44 provided in each of the portions 32 and 34 of the upper 14 itself are also provided in the decorative material 36. One end side portion of the fastener 42 is alternately inserted into the insertion portions 44 of the inner foot portion 32 and the outer foot portion 34, and is inserted into every other one of the plurality of column-shaped insertion portions 44. The other end side portion of the fastener 42 is also alternately inserted into the insertion portions 44 of the inner foot portion 32 and the outer foot portion 34, and is inserted into every other one of the plurality of column-shaped insertion portions 44.

[0028] The shoe 10 of the present embodiment includes a shooter 48 provided so as to close the throat portion 26 in a plan view. The front end portion of the shooter 48 is fixed to the front end portion of the throat portion 26 by stitching or the like, and the rear end portion thereof is a free end that is movable with respect to the upper 14.

[0029] The shoe 10 is a separate body from the upper 14 and includes a support member 50 that extends in a band shape in the foot circumference direction. The support member 50 includes an insole portion 52 disposed between the foot and the sole 12, an inner side portion 54 (first side portion) provided on the inner side of the foot in the foot width direction Y with respect to the insole portion 52, and an outer side portion 56 (second side portion) provided on the outer side of the foot in the foot width direction Y with respect to the insole portion 52.

[0030] The inner side portion 54 of the support member 50 is provided so as to extend in the foot circumference direction along the inner side portion 32 of the foot of the upper 14. In the inner side portion 32 of the foot of the upper 14, a lower through hole 58 and an upper through hole 60 that open to the inner surface of the accommodation chamber 18 are formed at positions spaced apart vertically. Each through hole 58, 60 of the present embodiment penetrates the inside and outside of the upper 14. The inner side portion 54 of the present embodiment is movably inserted into the lower through hole 58 and the upper through hole 60 of the upper 14. The inner side portion 54 is provided so as to protrude from the lower through hole 58 of the upper 14 to the outside of the accommodation chamber 18 and so as to protrude from the upper through hole 60 of the upper 14 to the inside of the accommodation chamber 18 on the way toward the tip side of the inner side portion 54. The inner side portion 54 of the present embodiment is provided so as to be exposed to the external space in the range from the insertion position with respect to the lower through hole 58 to the insertion position with respect to the upper through hole 60. The tip end portion of the inner side portion 54 of the present embodiment is provided at the inner side edge portion 28 of the throat portion 26.

[0031] One end portion 62 in the longitudinal direction of the support member 50 is provided at the tip of the inner side portion 54 of the foot. One end portion 62 of the support member 50 of the present embodiment is disposed above the aforementioned reference line L1. The inner side portion 54 of the support member 50 is disposed so as to straddle the aforementioned reference line L1 vertically on the inner side of the foot in the foot width direction Y. The inner side portion 54 of the foot is provided so as to be able to transmit the outward rotational tightening force Fa1 applied by the tightening tool 42. To achieve this, one of the aforementioned plurality of insertion portions 44 is provided at the tip of the inner side portion 54 of the foot, that is, at one end portion 62 of the support member 50.

[0032] A plurality of insertion portions 44 of the support member 50 of the present embodiment are provided at intervals in the front-rear direction. The insertion portion 44 of the present embodiment includes a first insertion portion 44A on the front side and a second insertion portion 44B on the rear side of the first insertion portion 44A. In the present embodiment, another insertion portion 44 provided in the inner side portion 32 of the foot of the upper 14 is disposed between the first insertion portion 44A and the second insertion portion 44B. These insertion portions 44 constitute at least a part of a plurality of columnar insertion portions 44 provided in the inner side portion 32 of the foot.

[0033] The outer side portion 56 of the foot of the support member 50 is provided so as to extend in the foot circumferential direction along the outer side portion 34 of the foot of the upper 14. A cut 64 is formed in the inner layer material 20 of the outer side portion 34 of the foot of the upper 14 of the present embodiment. The outer side portion 56 of the foot of the support member 50 is inserted between the outer layer material 22 and the inner layer material 20 of the upper 14 through the cut 64. The outer side portion 56 of the foot of the support member 50 is provided so as not to be exposed to the external space. The outer side portion 56 of the foot of the support member 50 is provided so as to cover the outer side portion of the instep of the foot from above when in the worn state.

[0034] The other longitudinal end portion 66 of the support member 50 is provided at the tip of the outer side portion 56 of its leg. The other end portion 66 of the support member 50 of the present embodiment is disposed above the aforementioned reference line L1. The outer side portion 56 of the support member 50 is disposed so as to straddle the aforementioned reference line L1 vertically on the outer side of the leg in the leg width direction Y. A part of the outer side portion 56 of the support member 50 of the present embodiment is disposed at a position overlapping the outer edge portion 30 of the leg of the throat portion 26 and is fixed to the outer edge portion 30 by stitching or the like. The outer side portion 56 is to be fixed to the upper 14 above the reference line L1. Unlike the one end portion 62 of the support member 50, a fastener insertion portion 44 is not provided at the other end portion 66 of the support member 50.

[0035] The support member 50 includes a wide portion 70 and a narrow portion 72 that extends from the wide portion 70 to one end side of the support member 50 and is narrower in the front-rear direction than the wide portion 70. The wide portion 70 of the present embodiment is constituted by the inner bottom portion 52 of the support member 50, and the narrow portion 72 is constituted by the inner side portion 54 of the leg of the support member 50. A plurality of narrow portions 72 of the support member 50 are provided at intervals in the front-rear direction. The narrow portion 72 of the present embodiment includes a first narrow portion 72A on the front side and a second narrow portion 72B on the rear side of the first narrow portion 72A. Each of the plurality of insertion portions 44A, 44B is provided in each of the plurality of narrow portions 72A, 72B.

[0036] Refer to FIGS. 4 and 5. In the figures, "S" indicates the stitching location. The shoe 10 includes a restraining portion 76 that restrains the vertical movement of the inner bottom portion 52 of the support member 50 with respect to the sole 12 and allows the movement of the inner bottom portion 52 in the foot circumferential direction. The restraining portion 76 of the present embodiment is formed by a member separate from the sole 12 and is configured using a flexible fabric such as a woven fabric or a knitted fabric. The front edge portion and the rear edge portion of the restraining portion 76 are fixed to the upper surface of the sole 12 by stitching or the like, and an insertion passage 78 through which the inner bottom portion 52 of the support member 50 is inserted is formed between the restraining portion 76 and the sole 12. The inner bottom portion 52 of the support member 50 is inserted into the insertion passage 78 formed by the restraining portion 76, so that the vertical movement is restrained as described above, and the movement in the foot circumferential direction is allowed. The inner bottom portion 52 of the support member 50 is provided so as to be movable in the foot circumferential direction with respect to the sole 12.

[0037] The inner bottom portion 52 of the support member 50 includes a restrained region 80 provided on the outer side of the foot in the foot width direction Y of the inner bottom portion 52, and a movement allowance region 82 provided on the inner side of the foot in the foot width direction Y of the inner bottom portion 52 with respect to the restrained region 80. The movement of the restrained region 80 in the vertical direction is restrained by the restraining portion 76. The movement allowance region 82 is not restrained in the vertical direction by the restraining portion 76, and the range of movement in the vertical direction is larger than that of the restrained region 80.

[0038] Return to FIGS. 2 to 4. The shoe 10 includes an arch support portion 84. The arch support portion 84 of the present embodiment is provided on the inner side of the foot of the inner bottom portion 52 of the support member 50. It can also be said that the arch support portion 84 is provided in the wide portion 70 of the support member 50. The arch support portion 84 constitutes a movement allowable region 82 of the support member 50 and is provided so as to be movable in the vertical direction with respect to the sole 12. The arch support portion 84 is provided so as to be able to transmit the outward rotation direction tightening force Fa1 applied to the inner side portion 32 of the foot of the upper 14. In the arch support portion 84 of the present embodiment, the outward rotation direction tightening force Fa1 is transmitted from the insertion portion 44 of the support member 50 provided in the inner side portion 32 of the foot through the support member 50 itself. As will be described later, when the tightening force is applied to the upper 14 by the fastener 42, the arch support portion 84 can support the longitudinal arch A (inner longitudinal arch) of the wearer's foot on the inner side in the foot width direction Y from below.

[0039] The inner side portion 32 of the foot of the upper 14 has a tightening force transmission portion 86 provided on the inner side with respect to the arch support portion 84. The tightening force transmission portion 86 is provided so as to be able to transmit the outward rotation direction tightening force Fa1 applied to the inner side portion 32 of the foot. In order to achieve this, the tightening force transmission portion 86 of the present embodiment is constituted by the lower portion from the lower through hole 58 of the inner side portion 32 of the foot of the upper 14 described above. In this portion, when the outward rotation direction tightening force Fa1 is applied, the outward rotation direction tightening force Fa1 is transmitted from the inner side side portion 54 of the support member 50 through the inner wall surface of the lower through hole 58.

[0040] This tightening force transmission portion 86 is set to have higher stretchability in the foot circumference direction than the arch support portion 84. In the present embodiment, the entire upper 14 is made of a material having higher stretchability in the foot circumference direction than the entire support member 50. To achieve this, the upper 14 is constituted by using, for example, a double raschel mesh knitted with polyester yarn, and the support member 50 is constituted by using, for example, ether-based artificial leather.

[0041] The operation of the above shoe 10 will be described. Referring to FIG. 6, consider the case where a tightening force is applied to the upper 14 by the tightening tool 42. A tightening force Fa1 in the eversion direction is applied to the inner foot portion 32 of the upper 14, and a tightening force Fa2 in the inversion direction is applied to the outer foot portion 34 of the upper 14.

[0042] When the tightening force Fa1 in the eversion direction is applied to the inner foot portion 32 of the upper 14 in this way, as described above, the tightening force Fa1 in the eversion direction is transmitted to the arch support portion 84. The arch support portion 84 moves away from the sole 12 in the vertical direction by the tightening force Fa1 in the eversion direction and contacts the longitudinal arch A on the inner side of the foot from below. At this time, the arch support portion 84 applies an upward eversion force Fb1 to the contact position with the longitudinal arch A and supports the longitudinal arch A on the inner side of the foot from below. At this time, the arch support portion 84 is disposed at a position overlapping the midfoot portion of the upper 14 in a side view and supports the midfoot portion (longitudinal arch on the inner side of the foot) of the foot.

[0043] When the tightening force Fa1 in the eversion direction is applied to the inner foot portion 32 of the upper 14 in this way, as described above, the tightening force Fa1 in the eversion direction is transmitted to the tightening force transmission portion 86 of the upper 14.

[0044] The effects of the above shoe 10 will be described.

[0045] (A) The tightening force transmission portion 86 of the upper 14 is made of a material having higher stretchability than the arch support portion 84. Thereby, when the tightening force Fa1 in the eversion direction is applied to the inner foot portion 32 of the upper 14, the tightening force transmission portion 86 of the upper 14 is more likely to deform than when the stretchability of the tightening force transmission portion 86 and the arch support portion 84 of the upper 14 is made the same. Along with this, an increase in the tightening force transmitted to the arch support portion 84 can be achieved, and an increase in the upward eversion force applied to the foot from the arch support portion 84 can be achieved. As a result, the longitudinal arch A on the inner side of the foot can be more firmly supported by the arch support portion 84, its sag can be suppressed, and excessive pronation in the inversion direction can be suppressed.

[0046] (B) The plurality of insertion portions 44 of the support member 50 are provided at intervals in the front-rear direction. Therefore, it is possible to realize a structure in which the arch support portion 84 of the support member 50 is also provided in a wide range in the front-rear direction. Along with this, the longitudinal arch A on the inner side of the foot can be supported in a wide range by the arch support portion 84 of the support member 50.

[0047] (C) Each of the plurality of insertion portions 44 is provided in each of the plurality of narrow portions 72. Therefore, it is possible to realize a structure in which the arch support portion 84 of the support member 50 is also provided in a wide range in the front-rear direction at the wide portion 70 of the support member 50. Along with this, the longitudinal arch A on the inner side of the foot can be supported in a wide range by the arch support portion 84 of the support member 50.

[0048] The inner bottom portion 52 of the support member 50 is provided so as to be movable in the foot circumference direction with respect to the sole 12, the inner side portion 54 on the inner side of the foot is provided so as to be able to transmit the tightening force Fa1 directed outward in the eversion direction, and the outer side portion 56 on the outer side of the foot is fixed to the upper 14. Thereby, when the tightening force Fa1 in the eversion direction is transmitted to the inner side portion 54 on the inner side of the foot of the support member 50, the tightening force can be transmitted as a downward eversion direction force Fb2 to the outer side portion 34 of the upper 14 through the inner bottom portion 52 and the outer side portion 56 of the support member 50. By applying this downward eversion direction force Fb2 from the upper 14 to the foot, it is possible to further suppress excessive pronation in the inversion direction.

[0049] In addition, in order to obtain the effects described here, it is preferable to configure such that the inward rotation direction tightening force Fa2 transmitted from the fastener 42 to the outer side portion 34 of the foot is smaller than the outward rotation direction tightening force Fa1 transmitted from the fastener 42 to the inner side portion 32 of the foot of the support member 50. While satisfying this condition, in the present embodiment, as will be described below, a structure is adopted in which the fastener insertion portion 44 is not provided at the other end portion 66 of the support member 50.

[0050] One end portion 62 of the support member 50 is provided with a fastener insertion portion 44, and the other end portion 66 thereof is not provided with the fastener insertion portion 44. Thus, when applying a tightening force by the fastener 42, an outward turning tightening force Fa1 is directly applied to one end portion 62 of the support member 50, while an inward turning tightening force Fa2 does not need to be directly applied to the other end portion 66 of the support member 50. For this reason, a situation where the outward turning tightening force Fa1 greatly cancels out the inward turning tightening force Fa2 can be avoided, and a downward outward turning force Fb2 can be effectively transmitted from the outer side portion 56 of the support member 50 to the outer side portion 34 of the upper 14 through the outer side of the foot. Along with this, further suppression of excessive pronation in the inward turning direction can be achieved.

[0051] The constrained region 80 provided on the outer side of the foot of the inner bottom portion 52 is constrained in its vertical movement by the constraining portion 76. Therefore, it becomes difficult for an upward force in the inward turning direction to be applied to the foot F from the constrained region 80 on the outer side of the foot of the inner bottom portion 52. Along with this, while the arch support portion 84 provided in the movement allowable region 82 of the inner bottom portion 52 applies an outward turning force Fb1 to the foot F, a situation where a force in the inward turning direction is applied to the foot from the constrained region 80 can be avoided, and further suppression of excessive pronation in the inward turning direction can be achieved.

[0052] Another feature of the shoe 10 of the first embodiment will be described.

[0053] Referring to FIG. 4. The lower through hole 58 of the upper 14 of the present embodiment is provided above the aforementioned reference line L1. Thereby, the insertion position of the lower through hole 58 of the inner side portion 32 of the foot of the support member 50 can be above the reference line L1, and accordingly, the vertical contact range of the arch support portion 84 of the support member 50 with respect to the foot can be widened. Along with this, it becomes easier for the arch support portion 84 to firmly support the longitudinal arch A on the inner side of the foot, and further suppression of excessive pronation in the inward turning direction can be achieved.

[0054] Refer to FIGS. 4 and 7. The shoe 10 includes a restricting portion 88 provided on the outer foot portion 34 of the upper 14. The restricting portion 88 of the present embodiment is a cushioning material 90 separate from the upper 14. The cushioning material 90 is disposed between the outer layer material 22 and the inner layer material 20 of the upper 14. The cushioning material 90 of the present embodiment has, for example, a rectangular shape in plan view. The cushioning material 90 in the present embodiment has a rectangular cross-sectional shape perpendicular to the front-rear direction of the cushioning material 90 when in the undeformed state.

[0055] The restricting portion 88 may be provided, for example, along the outer foot edge portion 30 of the throat portion 26. The restricting portion 88 is preferably provided above the aforementioned reference line L1. That is to say, the lower end position of the restricting portion 88 is preferably provided above the aforementioned reference line L1.

[0056] When the longitudinal arch A on the inner side of the foot is supported by the arch support portion 84, the restricting portion 88 can restrict the upward movement of the wearer's foot. In this state, the restricting portion 88 of the present embodiment restricts the upward movement by using the repulsive force accompanying its own elastic deformation. The restricting portion 88 can urge the top of the midfoot of the foot downward by adjusting the repulsive force of the cushioning material 90.

[0057] (D) Thereby, when the wearer's foot tries to move in the pronation direction, the movement can be restricted by the restricting portion 88, and excessive pronation in the pronation direction can be more effectively suppressed.

[0058] (E) In particular, since the restricting portion 88 urges the top of the foot downward, the movement of the wearer's foot in the pronation direction can be suppressed, and excessive pronation in the pronation direction can be further suppressed.

[0059] Since the restricting portion 88 is constituted by the cushioning material 90, the restricting portion 88 can be deformed to conform to the shape of the top of the foot, and the range where the restricting portion 88 contacts the top of the foot can be widened. Along with this, the contact pressure applied to the top of the foot through the restricting portion 88 can be increased, so that excessive pronation in the pronation direction can be effectively suppressed.

[0060] Since the cushioning material 90 that constitutes the restricting portion 88 is disposed between the outer layer material 22 and the inner layer material 20, large unevenness is less likely to occur in the accommodation chamber 18 formed by the inner layer material 20. Along with this, the contact of the inner surface of the accommodation chamber 18 with respect to the foot accommodated in the accommodation chamber 18 is improved, and good fit can be obtained.

[0061] Referring to FIG. 4, the preferable positions of the restricted region 80 and the movement allowable region 82 of the inner bottom portion 52 will be described. Consider the cross-sectional shape of the shoe 10 orthogonal to the front-rear direction. Let the dimension in the foot width direction Y of the upper surface portion of the sole 12 be Lc, the position at Lc×50% from the outer end 12a of the foot be referred to as the first reference position 92, and the position at Lc×65% from the outer end 12a of the foot be referred to as the second reference position 94. The upper surface portion of the sole 12 is divided into a first region 96, a second region 98, and a third region 100 from the outer side to the inner side of the foot in the foot width direction Y. The first region 96 is the region from the outer end 12a of the foot to the first reference position 92. The second region 98 is the region from the first reference position 92 to the second reference position 94. The third region 100 is the region from the second reference position 94 to the inner end 12b of the foot.

[0062] At this time, the boundary position 102 between the restricted region 80 and the movement allowable region 82 of the inner bottom portion 52 is preferably provided at a position overlapping with the second region 98 in the vertical direction. When this condition is satisfied, the restricted region 80 is provided at a position overlapping with at least most of the first region 96 in the vertical direction in the range of at least most of the first region 96 extending from the first reference position 92 toward the inner side of the foot. Also, when this condition is satisfied, the movement allowable region 82 is provided at a position overlapping with at least most of the third region 100 in the vertical direction in the range of at least most of the third region 100 extending from the second reference position 94 toward the outer side of the foot. Here, "most" refers to a range of 90% of the total length in the foot width direction of the region mentioned. This condition is set based on experimental findings. The reason for this will be explained.

[0063] The contact range with the sole 12 of the foot F varies in various ways depending on various factors. Here, the "factors" include, for example, the type of shoes, the type of last used in manufacturing the shoes, the position in the front - rear direction of the foot, etc. The inventor has found that in many cases, regardless of the influence of such factors, most of the contact range with the sole 12 of the outer part of the foot is provided in the first region 96, and the longitudinal arch on the inner side of the foot is positioned above the third region 100 with a gap. This recognition is based on the aforementioned experimental findings. If an upward force is applied within the contact range with the sole 12 of the outer part of the foot, an inward - turning force will be applied to the foot, which is not preferable. On the other hand, the longitudinal arch A on the inner side of the foot above the third region 100 is desirably supported from below within as wide a range in the foot - width direction Y as possible.

[0064] Here, if the boundary position between the constrained region 80 and the movement - permitted region 82 of the insole 52 satisfies the aforementioned conditions, compared with the case where the boundary position is provided at a position vertically overlapping the first region 96, a situation where an inward - turning force is applied within the contact range with the sole 12 of the outer part of the foot can be avoided. Also, if this condition is satisfied, compared with the case where the boundary position belongs to the third region 100, the longitudinal arch A on the inner side of the foot above the third region 100 can be supported from below by the arch support portion 84 provided in the movement - permitted region 82 within a wide foot - width direction range. As a result, regardless of the influence of the various factors described above, the longitudinal arch A on the inner side of the foot can be stably supported by the arch support portion 84 within a wide range, while avoiding a situation where an inward - turning force is applied to the foot.

[0065] (Second Embodiment) Refer to FIGS. 8 to 11. The shoe 10 of the second embodiment will be described. The upper 14 includes a first upper constituent layer 110 that forms an accommodation chamber 18 for accommodating the foot, and a second upper constituent layer 112 disposed outside the first upper constituent layer 110. The first upper constituent layer 110 is provided as a layer that separates the inside and outside of the upper 14 throughout the front-rear direction X and the foot width direction Y of the upper 14. The first upper constituent layer 110 has a multilayer structure including an inner layer material 20 that forms the accommodation chamber 18 and an outer layer material 22 disposed outside the inner layer material 20.

[0066] The second upper constituent layer 112 is provided only in a partial range in the front-rear direction X of the upper 14 and in a partial range in the foot width direction Y. The second upper constituent layer 112 is disposed so as to straddle the reference line L1 vertically on the inner side of the foot in the foot width direction Y. The second upper constituent layer 112 is provided only on the inner side portion 32 of the foot of the upper 14 as this "partial range in the foot width direction Y". The second upper constituent layer 112 forms an exposed surface that is exposed to the outside of the upper 14. The first upper constituent layer 110 forms an exposed surface that is exposed to the outside of the upper 14 at locations other than the second upper constituent layer 112.

[0067] The lower peripheral edge portion of the first upper constituent layer 110 is fixed to the sole 12 by adhesion, sewing, or the like. The outer peripheral edge portion of the second upper constituent layer 112 is fixed to the first upper constituent layer 110 or the sole 12. In the present embodiment, the lower edge portion of the second upper constituent layer 112 is fixed to the sole 12, and its front edge portion, upper edge portion, and rear edge portion are fixed to the first upper constituent layer 110.

[0068] The collar portion 24 and the throat portion 26 of the upper 14 are provided on the first upper constituent layer 110. Also, the plurality of insertion portions 44 are provided in the first upper constituent layer 110 itself at the inner side portion 32 and the outer side portion 34 of the foot of the upper 14.

[0069] The shoe 10 of the present embodiment does not include the support member 50 of the first embodiment. The arch support portion 84 of the present embodiment is provided in the first upper constituent layer 110. The arch support portion 84 is provided on the inner side of the foot of the second upper constituent layer 112. In the arch support portion 84 of the present embodiment, the outward rotation tightening force Fa1 applied to the inner side portion 32 of the foot of the upper 14 is transmitted through the first upper constituent layer 110 itself.

[0070] Refer to FIGS. 11 and 12. FIG. 12 shows the fixed position of the arch support portion 84 (first upper constituent layer 110) with respect to the upper surface portion of the sole 12. In FIG. 12, in addition to the upper surface portion of the sole 12, the contact position 114 of the foot F with respect to the upper surface portion of the sole 12 is also shown. The lower edge portion of the arch support portion 84 is fixed to the sole 12 by adhesion, stitching, etc. on the outer side of the inner edge 12c of the sole 12 at the midfoot portion of the sole 12 so as to support the longitudinal arch A on the inner side of the foot in plan view. In the present embodiment, the arch support portion 84 is provided in the inner side portion 32 of the foot at the midfoot portion of the upper 14.

[0071] Returning to FIGS. 8 to 11, a tightening force transmission portion 86 is provided in the second upper constituent layer 112. In the present embodiment, the entire second upper constituent layer 112 constitutes the tightening force transmission portion 86. In such a tightening force transmission portion 86, when the outward rotation tightening force Fa1 is applied to the inner side portion 32 of the foot of the upper 14, it is transmitted from the first upper constituent layer 110 through the second upper constituent layer 112 to the tightening force transmission portion 86.

[0072] This tightening force transmission portion 86 is set to have higher stretchability in the foot circumferential direction than the arch support portion 84, similar to the first embodiment. In the present embodiment, the entire second upper constituent layer 112 is made of a material having higher stretchability in the foot circumferential direction than the first upper constituent layer 110. Therefore, also in the present embodiment, the effect described in (A) above can be obtained.

[0073] Further, according to the present embodiment, since the first upper constituent layer 110 of the upper 14 also serves as the arch support portion 84, large irregularities are less likely to occur in the accommodation chamber 18 formed by the first upper constituent layer 110. Along with this, the contact of the inner surface of the accommodation chamber 18 with the foot F accommodated in the accommodation chamber 18 is improved, and good fit can be obtained.

[0074] Next, other features of the shoe 10 of the present embodiment will be described.

[0075] The shoe 10 of the present embodiment also includes a restricting portion 88 formed by the same cushioning material 90 as in the first embodiment. Also in the present embodiment, the same effects (D) and (E) as those in the first embodiment can be obtained.

[0076] Referring to FIG. 13, the shape of a part of the upper 14 in plan view will be described below. Hereinafter, with respect to a plurality of insertion portions 44 in the outer foot portion 34 of the upper 14, "L1, L2,..., L6" will be appended to the end of the reference numerals in order from the front side to the rear side. Also, with respect to a plurality of insertion portions 44 in the inner foot portion 32 of the upper 14, "M1, M2,..., M6" will be appended to the end of the reference numerals in order from the front side to the rear side.

[0077] The outer foot edge portion 30 of the throat portion 26 as a whole forms a contour that protrudes inward of the foot in the foot width direction Y at the intermediate portion 30a in the front-rear direction. On the outer foot edge portion 30, a convex end portion 120 formed by a portion that protrudes inward of the foot in this contour is provided. The convex end portion 120 is provided at a position offset inward of the foot in the foot width direction Y with respect to both end portions 30b and 30c in the front-rear direction of the outer foot edge portion 30.

[0078] In the plurality of columnar insertion portions 44L1 to 44L6 provided in the outer side portion 34 of the foot of the upper 14, there are included a first specific insertion portion 44C (44L3) that is most biased toward the inner side of the foot among them, and a second specific insertion portion 44D (44L4) that is next biased toward the inner side of the foot. In both cases, the insertion portions 44L3 and 44L4 in the middle of the front-rear direction X among the plurality of columnar insertion portions 44L1 to 44L6 are targeted. The first specific insertion portion 44C (44L3) is positioned biased toward the inner side of the foot with respect to the other insertion portions 44L1, L2, L4 to L6. The first specific insertion portion 44C is provided at a location overlapping the convex end portion 120 in the foot width direction Y. The second specific insertion portion 44D is adjacent to the first specific insertion portion 44C in the front-rear direction X, and in this embodiment, is adjacent to the first specific insertion portion 44C on the rear side.

[0079] A line that circumscribes the two insertion portions 44L2 and 44L4 adjacent to the first specific insertion portion 44C in the front-rear direction from the inner side of the foot is called a first circumscribing line Ld1, and a line that connects their centers C is called a first straight line Le1. The first specific insertion portion 44C of this embodiment is provided on the inner side of the foot with respect to the first circumscribing line Ld1. Further, the first specific insertion portion 44C of this embodiment is provided on the inner side of the foot with respect to the first straight line Le1.

[0080] A line that circumscribes the two insertion portions 44L2 and 44L5 adjacent to the pair of the first specific insertion portion 44C and the second specific insertion portion 44D in the front-rear direction from the inner side of the foot is called a second circumscribing line Ld2, and a line that connects their centers C is called a second straight line Le2. The pair of the first specific insertion portion 44C and the second specific insertion portion 44D of this embodiment is provided on the inner side of the foot with respect to the second circumscribing line Ld2. Further, the pair of the first specific insertion portion 44C and the second specific insertion portion 44D of this embodiment is provided on the inner side of the foot with respect to the second straight line Le2.

[0081] The inner edge portion 28 of the throat portion 26 as a whole forms a contour that is concave toward the inner side of the foot width direction Y at the intermediate portion 28a in the front-rear direction. The inner edge portion 28 of the foot is provided with a concave bottom portion 122 formed by a portion that is concave toward the inner side of the foot in this contour. The concave bottom portion 122 is provided at a position biased toward the inner side of the foot width direction Y with respect to both end portions 28b and 28c in the front-rear direction X of the inner edge portion 28 of the foot. The convex end portion 120 of the outer edge portion 30 of the foot and the concave bottom portion 122 of the inner edge portion 28 of the foot are provided at positions aligned in the foot width direction Y.

[0082] The plurality of columnar insertion portions 44M1 to 44M6 provided in the inner side portion 32 of the foot of the upper 14 include a third specific insertion portion 44E (44M3) that is most biased toward the inner side of the foot among them, and a fourth specific insertion portion 44F (44M4) that is next biased toward the inner side of the foot. In both cases, the insertion portions 44M3 and 44M4 in the middle of the front-rear direction X among the plurality of columnar insertion portions 44M1 to 44M6 are targeted. The third specific insertion portion 44E (44M3) is positioned biased toward the inner side of the foot with respect to the other insertion portions 44M1, M2, M4 to M6. The third specific insertion portion 44E is provided at a location that overlaps the concave bottom portion 122 in the foot width direction Y. The fourth specific insertion portion 44F is adjacent to the third specific insertion portion 44E in the front-rear direction X, and in this embodiment, is adjacent to the third specific insertion portion 44E on the rear side.

[0083] A line that circumscribes the third specific insertion portion 44E and the two adjacent insertion portions 44M2 and 44M4 in the front-rear direction from the inner side of the foot is called the third circumscribing line Ld3, and a line connecting their centers C is called the third straight line Le3. The third specific insertion portion 44E of this embodiment is provided on the inner side of the foot with respect to the third circumscribing line Ld3. Further, the third specific insertion portion 44E of this embodiment is provided on the inner side of the foot with respect to the third straight line Le3.

[0084] For the pair of the third specific insertion part 44E and the fourth specific insertion part 44F, a line that circumscribes two insertion parts 44M2 and 44M5 adjacent to each other in the front-rear direction from the inner side of the foot is called the fourth circumscribing line Ld4, and a line connecting their centers C is called the fourth straight line Le4. The pair of the third specific insertion part 44E and the fourth specific insertion part 44F in the present embodiment is provided on the inner side of the foot with respect to the fourth circumscribing line Ld4. Also, the pair of the third specific insertion part 44E and the fourth specific insertion part 44F in the present embodiment is provided on the inner side of the foot with respect to the fourth straight line Le4.

[0085] As described above, among the plurality of columnar insertion parts 44 provided on the outer side portion 34 of the foot of the upper 14, the first specific insertion part 44C in the middle of the front-rear direction X is biased toward the inner side of the foot with respect to the other insertion parts 44 provided on the outer side portion 34 of the foot. Therefore, compared with the case where the plurality of columnar insertion parts 44L1 to 44L6 are located on a straight line, the range of the contact portion with the instep at the outer side portion 34 of the foot of the upper 14 and the portion where the tightening force of the fastener 42 acts can be increased. Along with this, it becomes easier to realize a design that applies a large force in the eversion direction to the instep, and it is possible to further suppress excessive pronation in the eversion direction. Such a design is realized, for example, by providing a cushioning material 90 on the outer side portion 34 of the foot of the upper 14.

[0086] Among the plurality of columnar insertion parts 44 provided on the inner side portion 32 of the foot of the upper 14, the third specific insertion part 44E in the middle of the front-rear direction X is biased toward the inner side of the foot with respect to the other insertion parts 44 provided on the inner side portion 32 of the foot. Therefore, even when the first specific insertion part 44C provided on the outer side portion 34 of the foot of the upper 14 is biased toward the inner side of the foot, it becomes difficult for the distance between the first specific insertion part 44C and the third specific insertion part 44E to approach. Along with this, when inserting the fastener 42 into the insertion parts 44M1 to M6 and 44L1 to L6 of the inner side portion 32 and the outer side portion 34 of the foot of the upper 14, the insertion operation becomes easy.

[0087] Note that on the inner ankle edge portion 28 of the throat portion 26, a third specific insertion portion 44E, insertion portions 44M2 and 44M4 adjacent to the third specific insertion portion 44E in the front-rear direction X, and a notch 124 recessed inwardly of the foot are formed between the third specific insertion portion 44E and the insertion portions 44M2 and 44M4. It can be said that the notch 124 is formed in the front-rear direction with respect to the concave bottom portion 122 of the inner ankle edge portion 28. In the present embodiment, the notch 124 is formed on both sides in the front-rear direction X with respect to the third specific insertion portion 44E (concave bottom portion 122), but it may be formed on only one side thereof. In the present embodiment, in a plan view, the notch 124 is formed only in a range overlapping the decorative material 36 in the vertical direction. Thereby, even when the inner ankle edge portion 28 of the upper 14 is formed into a contour recessed inwardly of the foot, the flexibility of the inner ankle edge portion 28 becomes good, and good fit can be obtained.

[0088] (Third Embodiment) The shoe 10 of the third embodiment will be described. Refer to FIGS. 14 to 16. In FIG. 16, the fixing position of the support member 50 with respect to the upper surface portion of the sole 12 is shown.

[0089] The shoe 10 is, as in the first embodiment, separate from the upper 14 and includes a support member 50 extending in a band shape in the foot circumference direction. The support member 50 of the present embodiment is provided so as to extend in the foot circumference direction along the inner ankle portion 32 of the upper 14. One end portion 62 in the longitudinal direction of the support member 50 is provided on the inner ankle edge portion 28 of the throat portion 26 of the upper 14. An insertion portion 44 is provided at one end portion 62 of the support member 50. The insertion portion 44 of the present embodiment is configured by winding one end portion 62 of the support member 50 in a loop shape. The portion on the tip side from the winding portion constituting the insertion portion 44 of the support member 50 is inserted into a through hole 130 formed in the inner ankle portion 32 of the upper 14, and is fixed to the peripheral edge portion thereof by adhesion, sewing, or the like. One end portion 62 of the support member 50 will be fixed to the inner ankle portion 32 of the upper 14.

[0090] The insertion portions 44 of the support member 50 of the present embodiment are provided in plurality at intervals in the front-rear direction. The insertion portions 44 of the present embodiment include a first insertion portion 44A on the front side and a second insertion portion 44B on the rear side of the first insertion portion 44A. In the present embodiment, no other insertion portions 44 provided on the inner side portion 32 of the foot of the upper 14 itself are arranged between the first insertion portion 44A and the second insertion portion 44B.

[0091] The support member 50 includes a wide portion 70 and a narrow portion 72 that extends from the wide portion 70 to one end side of the support member 50 and is narrower in width in the front-rear direction than the wide portion 70. A plurality of narrow portions 72 of the support member 50 are provided at intervals in the front-rear direction. The wide portion 70 of the present embodiment is provided so as to extend in the foot circumference direction along the inner side portion 32 of the foot of the upper 14, and the narrow portion 72 constitutes the aforementioned insertion portion 44.

[0092] The arch support portion 84 of the present embodiment is constituted by a partial range from the other end portion 66 to one end side of the support member 50. The arch support portion 84 of the present embodiment is provided on the wide portion 70. The lower edge portion of the arch support portion 84 is fixed to the sole 12 by adhesion, stitching, etc. on the outer side of the sole 12 from the inner edge portion 12c of the foot at the midfoot portion of the sole 12 so as to support the longitudinal arch A on the inner side of the foot in plan view. In the present embodiment, the arch support portion 84 is provided on the inner side of the inner side portion 32 of the foot of the upper 14 at a position overlapping with the midfoot portion of the upper 14 in the foot width direction Y. A tightening force Fa1 in the eversion direction is transmitted through the support member 50 from the insertion portion 44 of the support member 50 provided on the inner side portion 32 of the foot of the upper 14 to the arch support portion 84 of the present embodiment.

[0093] The upper 14 has a tightening force transmission portion 86 provided on the inner side of the arch support portion 84. The tightening force transmission portion 86 of the present embodiment is constituted by a lower portion from the fixing position (stitching portion S) of the support member 50 with respect to the peripheral edge portion of the through hole 130 of the inner side portion 54 of the foot of the upper 14. In this portion, when the tightening force Fa1 in the eversion direction described above is applied, the tightening force Fa1 in the eversion direction is transmitted through the support member 50.

[0094] This tightening force transmission portion 86 is also set to have higher stretchability in the foot circumference direction than the arch support portion 84. In the present embodiment, the entire upper 14 is made of a material having higher stretchability in the foot circumference direction than the entire support member 50. Therefore, also in the present embodiment, the effect described in the above (A) can be obtained.

[0095] Further, according to the present embodiment, the plurality of insertion portions 44 of the support member 50 are provided at intervals in the front-rear direction. Therefore, the effect described in the above (B) can be obtained.

[0096] Each of the plurality of insertion portions 44 is provided in each of the plurality of narrow portions 72. Therefore, the effect described in the above (C) can be obtained.

[0097] (Fourth Embodiment) The shoe 10 of the fourth embodiment will be described. Refer to FIGS. 17 and 18. FIG. 18 is a schematic diagram showing the state before and after applying a tightening force to the support member 50, and is also a view seen from the arrow E in FIG. 17. The shoe 10 of the present embodiment mainly differs in the configurations of the upper 14 and the support member 50 as compared with the third embodiment.

[0098] One end portion 62 in the longitudinal direction of the support member 50 of the present embodiment is provided at a position overlapping the inner foot portion 32 on the back side of the inner foot portion 32 of the upper 14. An insertion portion 44 is provided at the one end portion 62 of the support member 50. The insertion portion 44 of the support member 50 of the present embodiment is a through hole.

[0099] Another fastener insertion portion 132 is provided at a position overlapping the insertion portion 44 of the support member 50 on the inner foot portion 32 of the upper 14. The fastener insertion portion 132 of the upper 14 is a long hole 134 that is longer in the foot circumference direction than the through hole formed by the insertion portion 44 of the support member 50. The tightening force transmission portion 86 of the present embodiment is constituted by the lower portion from the lower through hole 58 of the inner foot portion 32 of the upper 14.

[0100] When the tightening member 42 is in a loosened state, the outward rotational tightening force Fa1 applied to the support member 50 is released. At this time, the insertion portion 44 and the arch support portion 84 of the support member 50 move downward in the vertical direction with respect to the sole 12 (see the direction Pc1 in Fig. 18(A)). Similarly, the tightening member 42 also moves downward in conjunction with the support member 50 near the insertion location with respect to the insertion portion 44 of the support member 50 and within the long hole 134 of the inner side portion 32 of the upper 14's foot. That is, when the tightening member 42 is in a loosened state, the tightening member 42 is disposed at a location below and away from the upper end inner wall surface within the long hole 134.

[0101] Under this state, when attempting to tighten the tightening member 42, the tightening member 42 contacts the insertion portion 44 of the support member 50 while not contacting the upper end inner wall surface within the long hole 134 of the upper 14. When further tightening the tightening member 42 in this state, the outward rotational tightening force Fa1 is first applied to the support member 50, and the insertion portion 44 and the arch support portion 84 of the support member 50 move upward (see the direction Pc2). As the tightening amount of the tightening member 42 increases, the tightening member 42 contacts the upper end inner wall surface of the long hole 134 of the upper 14. When further tightening the tightening member 42 in this state, the outward rotational tightening force Fa1 is also applied to the tightening force transmission portion 86 of the inner side portion 32 of the upper 14's foot.

[0102] Thus, the tightening force transmission portion 86 of the present embodiment is configured such that when attempting to tighten the tightening member 42, the tightening force is transmitted later than the arch support portion 84. Thereby, compared with the case where the tightening force is transmitted to the arch support portion 84 and the tightening force transmission portion 86 simultaneously, it becomes easier to transmit the tightening force to the arch support portion 84. Along with this, by suppressing the deformation amount of the tightening force transmission portion 86, its repulsive force can be reduced, the increase of the tightening force transmitted to the arch support portion 84 can be achieved, and the increase of the upward outward rotational force applied to the foot from the arch support portion 84 can be achieved. As a result, also in the present embodiment, as described in (A) above, it becomes easier for the arch support portion 84 to firmly support the longitudinal arch A on the inner side of the foot, its sagging can be suppressed, and excessive pronation in the inward rotational direction can be suppressed.

[0103] Other modifications of each component will be described.

[0104] The upper 14 may have a monosock structure. The monosock structure here means a structure in which the upper 14 and the shooter 48 are integrated and there is no throat portion 26 in the upper 14. In this case, the inner foot portion 32 of the upper 14 is formed by the portion inside the center line CL1 throughout the entire range of the front-rear direction X. Further, the outer foot portion 34 of the upper 14 is formed by the portion outside the center line CL1 throughout the entire range of the front-rear direction X.

[0105] The number of insertion portions 44 of the support member 50 is not particularly limited, and may be one or three. The support member 50 does not necessarily have to include the wide portion 70 and the narrow portion 72. The insertion portion 44 may be provided only in a part of the plurality of narrow portions 72.

[0106] When using the support member 50 as in the first, third, and fourth embodiments, the insertion portion 44 may adopt the following configuration. Specifically, the insertion portion 44 may be configured by overlapping a part of the support member 50 on the back side of the edge portion 28 of the upper 14 and forming a through hole at the overlapping portion.

[0107] The through holes 58 and 60 formed in the inner foot portion 32 of the upper 14 of the first embodiment do not necessarily have to penetrate the inside and outside of the upper 14. This assumes, for example, a case where the through holes 58 and 60 are formed only in the inner layer material 20 of the upper 14 and not in the outer layer material 22. In this case, the inner foot side portion 54 is provided so as to pass between the inner layer material 20 and the outer layer material 22 in the range from the insertion location for the lower through hole 58 to the insertion location for the upper through hole 60.

[0108] Specific examples of the restraining portion 76 are not particularly limited. The restraining portion 76 may be provided, for example, only on a part of the sole 12 in the foot width direction Y.

[0109] The arch support portion 84 only needs to be provided so that the outward rotation tightening force applied to the inner side portion 32 of the foot of the upper 14 can be transmitted. In order to achieve this, like in the first and third embodiments, a part of the member (support member 50) constituting the arch support portion 84 may be provided on the inner side portion 32 of the foot of the upper 14, and the tightening force may be transmitted to the arch support portion 84 through that member. In addition to this, like in the second embodiment, the tightening force may be transmitted from the inner side portion 32 of the foot of the upper 14 to the arch support portion 84 through the upper 14 itself.

[0110] The tightening force transmission portion 86 only needs to be provided so that the outward rotation tightening force applied to the inner side portion 32 of the foot of the upper 14 can be transmitted. In order to achieve this, like in the first and third embodiments, a part of the member (support member 50) constituting the arch support portion 84 may be provided on the inner side portion 32 of the foot of the upper 14, and the tightening force may be transmitted to the tightening force transmission portion 86 through that member. In addition to this, like in the second embodiment, the tightening force may be transmitted from the inner side portion 32 of the foot of the upper 14 to the arch support portion 84 through the upper 14 itself (the first upper constituent layer 110).

[0111] The tightening force transmission portion 86 only needs to be set to have higher stretchability in the foot circumference direction than the arch support portion 84. In order to achieve this, like in the first to third embodiments, the material of the tightening force transmission portion 86 and the arch support portion 84 may be changed, or a stretchable portion such as a bellows structure may be provided in a part of the tightening force transmission portion 86.

[0112] The restricting portion 88 is provided on the inner side portion 54 of the foot of the upper 14 and only needs to be able to restrict the upward movement of the foot, and it is not essential to bias the instep downward. Also, in order to restrict the upward movement of the foot, for example, the restricting portion 88 may be constituted by a cushioning material 90 fixed further inside the inner layer material 20 of the upper 14.

[0113] In addition to this, the restricting portion 88 may be constituted by the outer layer material 22 and the inner layer material 20 of the upper 14. In this case, at the location where the restricting portion 88 of the upper 14 is provided, the outer layer material 22 is configured to have a larger dimension than the inner layer material 20 of the upper 14 in the instep circumference direction when in the undeformed state. Also, at the location where the restricting portion 88 of the upper 14 is provided, the inner layer material 20 is provided in a state of being elastically stretched in the instep circumference direction so as to match the dimension of the outer layer material 22 in the instep circumference direction. As a result, a tension in the instep circumference direction is applied to the inner layer material 20 due to the repulsive force accompanying the elastic deformation, and the outer layer material 22 is biased so as to bend by that tension. At this time, since the lower peripheral edge portion of the outer layer material 22 is fixed, it is biased so as to bend with the downward movement of the upper portion thereof. As a result, the outer layer material 22 and the inner layer material 20 of the upper 14 function as the restricting portion 88 that biases the instep downward.

[0114] Although an example in which the second upper constituent layer 112 of the second embodiment is provided only in a part of the entire range in the front-rear direction of the upper 14 has been described, it may be provided in the entire range. Also, although an example in which the second upper constituent layer 112 is provided only in the inner foot portion 32 of the upper 14 has been described, it may be provided in the outer foot portion 34 thereof.

[0115] The shapes of both edge portions 28 and 30 of the throat portion 26 are not particularly limited in any of the embodiments. Also, even when the outer instep edge portion 30 of the throat portion 26 has a contour that protrudes inward of the foot, the inner instep edge portion 28 may have a contour that extends linearly.

[0116] The embodiments and modifications of the present invention have been described in detail above. The above-described embodiments and modifications are merely specific examples for implementing the present invention. The contents of the embodiments and modifications do not limit the technical scope of the present invention, and many design changes such as changes, additions, and deletions of components are possible without departing from the inventive concept. In the above-described embodiments, regarding the contents for which such design changes are possible, the notation "Embodiment" is attached and emphasized, but design changes are also allowed for the contents without such notation. The hatching attached to the cross-section of the drawing does not limit the material of the object to which the hatching is attached.

[0117] Also, any combination of the above components is effective as an aspect of the present invention. For example, any explanatory matters of other embodiments or modifications may be combined with an embodiment, or any explanatory matters of an embodiment or other modifications may be combined with a modification. An example of this combination will be described.

[0118] The positional relationship of the plurality of insertion portions 44 of the second embodiment may be applied to the plurality of insertion portions 44 of the first, third, and fourth embodiments. Also, the positional relationship of the plurality of insertion portions 44 of the first, third, and fourth embodiments may be applied to the plurality of insertion portions 44 of the second embodiment.

[0119] The support member 50 of the first, third, and fourth embodiments may be used for the shoe 10 of the second embodiment. The upper configuration layers 110 and 112 of the second embodiment may be used for the shoes 10 of the first and third embodiments.

[0120] The explanatory matters of the first to third embodiments may be combined for the shoe 10 of the fourth embodiment. For example, the support member 50 of the first embodiment may be used for the shoe 10 of the fourth embodiment, or the upper configuration layers 110 and 112 of the second embodiment may be used.

[0121] In the above-described embodiments and modifications, shoes that can suppress excessive pronation in the inverting direction have been described. The present invention can also be applied to shoes that can suppress supination in the eversion direction. When applying to these shoes, the descriptions of the embodiments and modifications may be understood to satisfy the following conditions (1) to (3). In this case, it is considered that the first side in the foot width direction described above is the outer side of the foot, and the second side is the inner side of the foot, and the first side in the foot circumference direction is the inverting direction, and the second side is the eversion direction. (1) In the description of the embodiments and modifications, the phrase "inner side of the foot" in the foot width direction is understood to be replaced with the phrase "outer side of the foot", and the phrase "outer side of the foot" is understood to be replaced with the phrase "inner side of the foot". (2) In the description of the embodiments and modifications, the phrase "eversion direction" is understood to be replaced with the phrase "inverting direction", and the phrase "inverting direction" is understood to be replaced with the phrase "eversion direction". (3) In the description of the embodiments and modifications, the phrase "pronation" is understood to be replaced with the phrase "supination".

[0122] For example, in order to obtain the above-described effect (A) explained in the first embodiment, the arch support portion 84 of the shoe 10 is provided so as to be able to transmit the inverting-direction tightening force Fa2 applied to the inner-side portion 32 of the upper 14, and support the longitudinal arch (outer longitudinal arch) of the wearer on the outer side of the foot from below. Further, the tightening force transmission portion 86 of the upper 14 is provided on the outer side of the foot with respect to the arch support portion 84, and is provided so as to be able to transmit the tightening force in the inverting direction applied to the inner-side portion 32 of the upper 14. Furthermore, the tightening force transmission portion 86 may be set to have higher stretchability in the foot circumference direction than the arch support portion 84.

[0123] Accordingly, when an inward-turning tightening force is applied to the inner side portion 32 of the upper 14, the tightening force transmission portion 86 of the upper 14 is more likely to deform than when the elasticity of the tightening force transmission portion 86 and the arch support portion 84 of the upper 14 is made the same. Along with this, an increase in the tightening force transmitted to the arch support portion 84 can be achieved, and an increase in the upward inward-turning force applied to the foot from the arch support portion 84 can be achieved. As a result, it becomes easier for the arch support portion 84 to firmly support the longitudinal arch on the outer side of the foot, its sag can be suppressed, and supination in the outward-turning direction can be suppressed.

[0124] Also, in a shoe capable of suppressing supination, in order to obtain the effects described in the fourth embodiment, similar to the fourth embodiment, the tightening force transmission portion 86 may be configured such that the tightening force is transmitted after the arch support portion 84 when the fastener 42 is tightened.

[0125] Furthermore, generalizing the inventions embodied by the above embodiments and modification examples, it can be said that the inventions described in the following items are included.

[0126] (Item 1) An upper, a fastener disposed above the instep of the wearer's foot and capable of applying a tightening force to the upper for pulling both side portions of the upper in the foot width direction, the upper includes a first side portion provided on a first side in the foot width direction and a second side portion provided on a second side in the foot width direction, a plurality of fastener insertion portions arranged in a row at intervals in the front-rear direction are provided in each of the first side portion and the second side portion, a shoe in which a fastener insertion portion in the middle in the front-rear direction among the plurality of fastener insertion portions of the second side portion is positioned biased toward the first side in the foot width direction with respect to the other fastener insertion portions.

[0127] (Item 2) The shoe according to Item 1, wherein a fastener insertion portion in the middle in the front-rear direction among the plurality of fastener insertion portions of the first side portion is positioned biased toward the first side in the foot width direction with respect to the other fastener insertion portions.

[0128] One of the objects of the invention described in this section is to provide shoes capable of suppressing excessive pronation.

Industrial Applicability

[0129] The present invention relates to shoes.

Explanation of Signs

[0130] 10... shoes, 12... sole, 12a, 12b... edges, 14... upper, 18... accommodation chamber, 24... mouth part, 26... throat part, 28... inner edge part of foot (first side edge part), 30... outer edge part of foot (second side edge part), 32... inner part of foot (first side part), 34... outer part of foot (second side part), 42... fastener, 44... fastener insertion part, 50... support member, 52... insole, 62... one end part, 66... the other end part, 70... wide part, 72... narrow part, 76... restraint part, 80... restrained region, 82... movement allowance region, 84... arch support part, 86... fastening force transmission part, 88... regulating part, 110... first upper constituent layer, 112... second upper constituent layer.

Claims

1. Upper and A fastening device is disposed above the instep of the wearer and capable of applying a fastening force to the upper that draws together both sides of the upper in the foot width direction; an arch support portion that is provided so as to be capable of transmitting a fastening force applied to a medial portion of the upper in a foot width direction and that is capable of supporting a longitudinal arch of a wearer's foot on the medial side in the foot width direction from below; The medial side of the foot is provided on the medial side of the foot in the foot width direction relative to the arch support portion and has a tightening force transmission portion provided to be able to transmit the tightening force applied to the medial side of the foot, The tightening force transmission portion is set to have a higher elasticity in the foot circumference direction than the arch support portion, The arch support portion is separate from the upper and is provided on a support member extending in a band-like shape in a foot circumference direction, The support member is An inner sole portion is disposed between the foot and the sole, is movable in a foot circumference direction relative to the sole, and is provided with the arch support portion; an inner side portion provided on the inner side of the foot in the foot width direction relative to the insole portion and capable of transmitting the tightening force applied to the inner side portion of the foot; a foot lateral side portion provided on the lateral side of the foot in the foot width direction relative to the inner sole portion and fixed to the upper, a restraining portion that restrains the movement of the insole in the up-down direction relative to the sole and allows the movement of the insole in the foot circumference direction relative to the sole, The inner bottom portion is A restrained area is provided on the outer side of the foot in the foot width direction of the insole, and is restrained in the vertical movement by the restraint portion; a movement allowance area that is provided on the inner side of the insole in the foot width direction from the restrained area and is not restrained in the up and down direction by the restraining part; The arch support portion of the shoe is provided in the movement-permitted area and is movable in the vertical direction opposite the sole.

2. The support member is provided on the medial side of the foot and includes a fastener insertion portion provided at one end of the support member in a longitudinal direction, The shoe according to claim 1 , wherein the fastener insertion portion is provided in a plurality of portions spaced apart from each other in the front-rear direction.

3. The support member includes a wide portion on which the arch support portion is provided, and a plurality of narrow portions extending from the wide portion to one end side of the longitudinal direction of the support member and having a width narrower in the front-rear direction than that of the wide portion, The shoe according to claim 2 , wherein each of the plurality of fastener insertion portions is provided in each of the plurality of narrow portions.

4. The upper includes a lateral side portion provided on the lateral side of the foot in a foot width direction, A shoe as described in any one of claims 1 to 3, further comprising a restricting portion provided on the outer part of the foot and capable of restricting the upward movement of the wearer's foot when the longitudinal arch on the inner side of the foot in the foot width direction is supported by the arch support portion.

5. The shoe according to claim 4, wherein the restricting portion urges the instep downward when the longitudinal arch on the medial side of the foot in the foot width direction is supported by the arch support portion.

6. The upper includes a first upper constituent layer that forms a chamber that accommodates a foot, and a second upper constituent layer that is disposed on an outer side of the first upper constituent layer, The first upper constituent layer is provided with the arch support portion, The shoe according to claim 1 , wherein the second upper constituent layer is provided with the tightening force transmitting portion.

7. Upper and A fastening device is disposed above the instep of the wearer and capable of applying a fastening force to the upper that draws together both sides of the upper in the foot width direction; an arch support portion that is provided so as to be capable of transmitting a fastening force applied to a medial portion of the upper in a foot width direction and that is capable of supporting a longitudinal arch of a wearer's foot on the medial side in the foot width direction from below; The medial side of the foot is provided on the medial side of the foot in the foot width direction relative to the arch support portion and has a tightening force transmission portion provided to be able to transmit the tightening force applied to the medial side of the foot, The tightening force transmission portion is set to have a higher elasticity in the foot circumference direction than the arch support portion, The arch support portion is separate from the upper and is provided on a support member extending in a band-like shape in a foot circumference direction, The support member has an inner sole disposed between the foot and the sole, The arch support portion is provided in the inner sole portion in an area on the medial side of the foot in the width direction of the foot, and is movable in the vertical direction opposite the sole.

Images