Shoe

Abstract

To provide a shoe capable of stably fixing a heel counter to a shell and an upper body.SOLUTION: A shoe 1A includes: a flexible shell 10; a bag-shaped upper body 20 housed in the shell 10; a heel counter 50 stored in the shell 10 and arranged outside the upper body 20. A first member to be one of the shell 10, the upper body 20 and heel counter 50 and a second member to be another one of the same are provided with a first insertion part and a second insertion part respectively. A third member to be the last one of the shell 10, the upper body 20 and the heel counter 50 has a belt-like fastening part. With the fastening part inserted into the first insertion part and the second insertion part, the first member and the second member are fastened by the fastening part, so that the first member and the second member can be fixed to the third member.SELECTED DRAWING: Figure 13

Description

Technical Field

[0001] The present disclosure relates to shoes.

Background Art

[0002] For example, Japanese Patent Application Laid-Open No. 2022-127292 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2022-127293 (Patent Document 2) disclose shoes including a flexible shell, a bag-shaped upper body housed in the shell, and a sole body housed in the upper body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, in the shoes disclosed in these Patent Documents 1 and 2, since both the shell and the upper body are made of relatively soft members, from the viewpoints of improving durability and following the wearer's foot, etc., in the shoes, it is preferable to provide a heel counter made of a relatively hard member at a portion corresponding to the circumferential surface of the heel portion of the wearer's foot. However, as described above, since both the shell and the upper body are relatively soft, the problem arises of how to fix the heel counter to these shell and upper body.

[0005] If the fixing of this heel counter is insufficient, the heel counter may be displaced during use, and as a result, the problem may occur that the fitness for the wearer's foot is significantly impaired.

[0006] On the one hand, although it is also conceivable to join the heel counter to the upper body or the shell using an adhesive, when such a fixing structure is adopted, since the adhesive contains a corresponding amount of organic solvent, it is not necessarily preferable from the perspective of environmental load.

[0007] Therefore, the present disclosure aims to stably fix the heel counter to the shell and the upper body without using an adhesive or while reducing the amount of adhesive used in a shoe having a flexible shell and a bag-shaped upper body housed in the shell.

Means for Solving the Problems

[0008] The shoe according to one aspect of the present disclosure has an insertion space into which the wearer's foot is inserted provided therein, and includes a flexible shell, an upper body, and a heel counter. The shell includes a bottom wall portion having a ground contact surface and a peripheral wall portion erected from the periphery of the bottom wall portion. The upper body is housed in the shell and has a bag-like shape provided with an opening into which the wearer's foot can be inserted. The heel counter is housed in the shell and is arranged outside the upper body so as to be able to cover at least the peripheral surface of the heel portion of the wearer's foot, and is harder than the shell and the upper body.

[0009] Here, in the shoe according to one aspect of the present disclosure, when one of the shell, the upper body, and the heel counter is used as the first member, another one of the shell, the upper body, and the heel counter is used as the second member, and the remaining one of the shell, the upper body, and the heel counter is used as the third member, a through-hole-shaped first insertion portion is provided in the first member, a through-hole-shaped second insertion portion is provided in the second member, and the third member has a main body portion and a belt-shaped tightening portion provided so as to be drawn out from the main body portion.

[0010] In the shoe according to one aspect of the present disclosure, with the fastening portion inserted into the first insertion portion and the second insertion portion, the first member and the second member are tightened by the fastening portion, so that the first member and the second member are configured to be fixable to the third member.

[0011] A shoe according to another aspect of the present disclosure has an insertion space inside which the foot of the wearer is inserted, and includes a flexible shell, an upper body, a heel counter, and a fixing portion. The shell includes a bottom wall portion having a ground contact surface and a peripheral wall portion erected from the periphery of the bottom wall portion. The upper body is housed in the shell and has a bag-like shape provided with an opening into which the foot of the wearer can be inserted. The heel counter is housed in the shell and is arranged outside the upper body so as to be able to cover the peripheral surface of the heel portion of the wearer's foot, and is harder than the shell and the upper body. The fixing portion is for fixing the shell, the upper body, and the heel counter to each other.

[0012] In the shoe according to another aspect of the present disclosure, the fixing portion is constituted by a belt-like fastening member, a first insertion portion in the form of a through-hole provided in the upper body, a second insertion portion in the form of a through-hole provided in the heel counter, and a third insertion portion in the form of a through-hole provided in the shell.

[0013] In the shoe according to another aspect of the present disclosure, with the fastening member inserted into the first insertion portion, the second insertion portion, and the third insertion portion and tightened so as to form a loop, the upper body, the heel counter, and the shell are configured to be fixable to each other in a state of being tightened by the fastening member.

Advantages of the Invention

[0014] According to the present disclosure, in a shoe including a flexible shell and a bag-shaped upper body housed inside the shell, it is possible to stably fix a heel counter to the shell and the upper body without using an adhesive or while reducing the amount of adhesive used.

Brief Description of the Drawings

[0015]

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Mode for Carrying Out the Invention

[0016] Hereinafter, embodiments will be described in detail with reference to the drawings. In the embodiments shown below, the same or common parts are denoted by the same reference numerals in the drawings, and the description thereof will not be repeated.

[0017] (Embodiment 1) <A. Schematic Configuration of Shoe> FIG. 1 is a perspective view of a shoe according to Embodiment 1, and FIG. 2 is a perspective view of the shoe shown in FIG. 1 as viewed from another direction. FIG. 3 is a plan view of the shoe shown in FIG. 1, and FIG. 4 is a side view of the shoe shown in FIG. 1 as viewed from the outside of the foot side. FIGS. 5 to 7 are cross-sectional views taken along lines V-V, VI-VI, and VII-VII shown in FIG. 3, respectively. Further, FIG. 8 is an exploded perspective view for explaining the assembly structure of the shoe shown in FIG. 1. First, with reference to FIGS. 1 to 8, a schematic configuration of the shoe 1A according to the present embodiment will be described.

[0018] As shown in FIGS. 1 to 8, the shoe 1A according to the present embodiment is in the form of a sock that covers substantially the entire foot of the wearer (that is, the part on the distal side from the ankle). The shoe 1A includes a shell 10, an upper body 20, a sole body 30 (see FIGS. 3, 5 to 8), an additional sole body 40 (see FIGS. 6 to 8), and a heel counter 50 (see FIGS. 6 to 8). At the upper part of the shoe 1A, an opening 2 for inserting the foot is provided, and at the lower part of the shoe 1A, a ground contact surface 3 for contacting the ground or the like is provided. Further, inside the shoe 1A, an insertion space SP3 (see FIGS. 1, 3, and 5 to 7) into which the wearer's foot is inserted is provided.

[0019] Here, the front-rear direction X of the shoe 1A is defined as the direction that coincides with the foot length direction of the wearer's foot when wearing the shoe 1A. The left-right direction Y of the shoe 1A is defined as the direction that coincides with the foot width direction of the wearer's foot when wearing the shoe 1A. Further, the up-down direction Z of the shoe 1A is defined as the direction orthogonal to both the front-rear direction X and the left-right direction Y described above. In particular, in the midfoot part R2 and the rearfoot part R3 of the shoe 1A described later, the up-down direction Z is substantially orthogonal to the ground contact surface 3 included in these parts.

[0020] As shown in FIGS. 3 and 4, the shoe 1A includes a front foot part R1 configured to support the toe part and the stepping part of the wearer's foot along the front-rear direction X, a midfoot part R2 configured to support the instep part of the wearer's foot, and a rear foot part R3 configured to support the heel part of the wearer's foot.

[0021] The forefoot region R1, midfoot region R2, and hindfoot region R3 are defined as follows based on the shoe center SC (see FIG. 3) of the shoe 1A. Here, the shoe center SC is a straight line obtained by projecting, along the vertical direction Z, a straight line connecting the portion between the first and second toes of a standard wearer having a foot of a size that fits the shoe 1A and the central portion of the calcaneus bone (so-called heel center, which is denoted by the reference sign HC in FIG. 3 and the like) onto the shoe 1A. The direction in which this shoe center SC extends coincides with the front-rear direction X described above. As a premise, positions on the shoe center SC and the foremost end and the rearmost end in the front-rear direction X of the insertion space SP3 are respectively referred to as the front-side end position PF and the rear-side end position PR, and the distance between the front-side end position PF and the rear-side end position PR along the front-rear direction X is defined as the total length of the insertion space SP3.

[0022] That is, when a virtual plane passing through the position that is 40% of the total length of the insertion space SP3 from the front-side end position PF and orthogonal to the shoe center SC is defined as the first boundary plane P1, and a virtual plane passing through the position that is 80% of the total length of the insertion space SP3 from the front-side end position PF and orthogonal to the shoe center SC is defined as the second boundary plane P2, the forefoot region R1 corresponds to the portion included between the front-side end position PF and the first boundary plane P1 along the front-rear direction X, the midfoot region R2 corresponds to the portion included between the first boundary plane P1 and the second boundary plane P2 along the front-rear direction X, and the hindfoot region R3 corresponds to the portion included between the second boundary plane P2 and the rear-side end position PR along the front-rear direction X.

[0023] Further, as shown in FIG. 3, in a plan view, the shoe 1A is partitioned, along the left-right direction Y, into an inner-foot side portion (the portion on the S1 side shown in FIG. 3), which is the medial side (i.e., the side closer to the midline) in the anatomical neutral position of the foot, and an outer-foot side portion (the portion on the S2 side shown in FIG. 3), which is the side opposite to the medial side (i.e., the side farther from the midline) in the anatomical neutral position of the foot.

[0024] As shown in FIGS. 1 to 8, in the shoe 1A, the upper body 20 is accommodated in the shell 10, and the sole body 30 is accommodated in the upper body 20. Further, the additional sole body 40 and the heel counter 50 are accommodated in the shell 10 and are disposed outside the upper body 20. The shell 10, the upper body 20, and the sole body 30 all straddle the forefoot part R1, the midfoot part R2, and the hindfoot part R3. On the other hand, the additional sole body 40 straddles the midfoot part R2 and the hindfoot part R3, and the heel counter 50 is located in the hindfoot part R3.

[0025] As shown in FIGS. 1 to 7, the shell 10 constitutes the outermost shell of the shoe 1A and is made of a flexible member configured in a bag shape having an opening-shaped mouth part 10a. The shell 10 has an internal space communicating with the mouth part 10a, and the above-described insertion space SP3 is included in this internal space. The upper body 20, the sole body 30, the additional sole body 40, and the heel counter 50 are disposed in the internal space of the shell 10.

[0026] The shell 10 includes a bottom wall part 11 configured to cover the sole of the wearer's foot and a peripheral wall part 12 configured to cover the peripheral surface of the wearer's foot. The peripheral wall part 12 is erected so as to continuously extend upward from the peripheral edge of the bottom wall part 11.

[0027] As shown in FIGS. 5 to 7, the bottom wall part 11 has an inner surface 11a and an outer surface 11b which are a pair of main surfaces. The inner surface 11a is located on the side of the insertion space SP3, and the outer surface 11b constitutes the outermost surface located on the lower side in the vertical direction Z of the shoe 1A. The outer surface 11b of this bottom wall part 11 corresponds to the above-described ground contact surface 3, and thus the bottom wall part 11 has the ground contact surface 3.

[0028] The peripheral wall part 12 has an inner peripheral surface 12a and an outer peripheral surface 12b which are a pair of main surfaces. The inner peripheral surface 12a is located on the side of the insertion space SP3, and the outer peripheral surface 12b constitutes the outermost surface located in the front-rear direction X of the shoe 1A, the outermost surface located in the left-right direction Y, and the outermost surface located on the upper side in the vertical direction Z.

[0029] As shown in FIGS. 3 to 7, the peripheral wall portion 12 includes an inner-side peripheral wall portion 12A configured to cover the inner-side portion of the wearer's foot, an outer-side peripheral wall portion 12B configured to cover the outer-side portion of the wearer's foot, a rear-side peripheral wall portion 12C configured to cover the rear surface of the heel portion of the wearer's foot, and a front-side peripheral wall portion 12D configured to cover the front surface of the toe portion of the wearer's foot.

[0030] Note that the height of the peripheral wall portion 12 (i.e., the dimension in the vertical direction Z) is not particularly limited. For example, by making the height of the outer-side peripheral wall portion 12B lower than the height of the inner-side peripheral wall portion 12A at a position corresponding to the opening edge 2, the pressure applied to the wearer's ankle from the shoe 1A can be reduced.

[0031] Here, among the above-described peripheral wall portion 12, the portion configured to cover the nail of the wearer's foot (i.e., the portion located on the upper side in the vertical direction Z of the peripheral wall portion 12) is different from the other portions included in the peripheral wall portion 12. Its thickness is configured to be thin, and it is configured by a mesh-like structure portion 10b formed by a plurality of linear portions intersecting each other in a direction orthogonal to the thickness direction.

[0032] By configuring in this way, the portion of the peripheral wall portion 12 configured to cover the nail of the wearer's foot has a lower tensile elastic modulus and a smaller flexural rigidity than the other portions included in the peripheral wall portion 12. Therefore, it becomes possible to deform the portion more flexibly. Accordingly, it is possible to improve the fit while preventing excessive pressure from being applied to the nail of the wearer's foot (especially the ridge line portion of the nail) during wearing, and moreover, it becomes difficult to inhibit the bending of the shoe 1A during running or walking, and the shoe 1A can more easily follow the movement of the foot. In addition, the shoe 1A can be more easily put on and taken off.

[0033] In addition, among the peripheral wall portions 12, the portion configured to cover the toenail of the wearer's foot may be configured by, in addition to the above-described structure, a mesh-like structure portion in which polygons such as triangles and quadrilaterals are regularly arranged, or a mesh-like structure portion formed in the shape of a line obtained by Voronoi division.

[0034] As shown in FIGS. 1 to 7, the upper end of the peripheral wall portion 12 is provided with the above-described mouth portion 10a. This mouth portion 10a is located across the mid-foot portion R2 and the rear-foot portion R3. The mouth portion 10a is provided corresponding to the above-described opening edge 2, and during the manufacture of the shoe 1A, etc., the upper body 20, the sole body 30, the additional sole body 40, and the heel counter 50 are inserted into the shell 10 through the mouth portion 10a.

[0035] As shown in FIGS. 5 to 7, the internal space of the shell 10 is defined by the inner surface 11a of the bottom wall portion 11 and the inner peripheral surface 12a of the peripheral wall portion 12. The internal space is located across the front-foot portion R1, the mid-foot portion R2, and the rear-foot portion R3.

[0036] The internal space of the shell 10 is partitioned into a lower-side space SP1 located in the lower portion in the vertical direction Z of the shoe 1A and an upper-side space SP2 located in the upper portion in the vertical direction Z of the shoe 1A. More specifically, the lower-side space SP1 is a space defined by the inner surface 11a of the bottom wall portion 11 and the inner peripheral surface 12a of the peripheral wall portion 12 in the portion adjacent to the bottom wall portion 11, and the upper-side space SP2 is a space defined by the inner peripheral surface 12a of the portion of the peripheral wall portion 12 located above the portion adjacent to the bottom wall portion 11 in the vertical direction Z.

[0037] As will be described in detail later, the lower side space SP1 houses the lower part of the upper body 20, the entire sole body 30, the entire additional sole body 40, and the lower part of the heel counter 50. The upper side space SP2 houses the upper part of the upper body 20 and the upper part of the heel counter 50. Note that the upper side space SP2 further includes the above-described insertion space SP3. The insertion space SP3 is defined by the upper surface of the sole body 30 (more precisely, the top surface 31a of the midsole 31 described later) and the inner peripheral surface 22a of the side wall portion 22 of the portion of the upper body 20 that is not covered by the sole body 30.

[0038] As shown in FIGS. 1 to 7, the upper body 20 constitutes a part of the portion that contacts the foot of the wearer of the shoe 1A (more specifically, the portion that contacts the peripheral surface of the wearer's foot), and is formed of a bag-shaped member provided with an opening 20a. The upper body 20 is housed in the shell 10 in a state of being superimposed on the bottom wall portion 11 and the peripheral wall portion 12 of the shell 10 so as to cover the inner surface of the shell 10. The upper body 20 is made of a member that can be flexibly deformed from the viewpoint of improving the fit and ensuring a good wearing comfort.

[0039] The upper body 20 includes a lower wall portion 21 configured to cover the sole of the wearer's foot and a side wall portion 22 configured to cover the peripheral surface of the wearer's foot. The side wall portion 22 is erected so as to continuously extend upward from the peripheral edge of the lower wall portion 21. The lower wall portion 21 extends along the inner surface 11a of the bottom wall portion 11 of the shell 10, and the side wall portion 22 extends along the inner peripheral surface 12a of the peripheral wall portion 12 of the shell 10.

[0040] As shown in FIGS. 5 to 7, the lower wall portion 21 has a pair of main surfaces, an inner surface 21a and an outer surface 21b. The inner surface 21a is located on the side of the insertion space SP3, and the outer surface 21b is located on the side of the bottom wall portion 11 of the shell 10.

[0041] The side wall portion 22 has an inner peripheral surface 22a and an outer peripheral surface 22b which are a pair of main surfaces. The inner peripheral surface 22a is located on the side of the insertion space SP3, and the outer peripheral surface 22b is located on the side of the peripheral wall portion 12 of the shell 10.

[0042] As shown in FIGS. 3 to 7, the side wall portion 22 includes an inner foot side wall portion 22A configured to cover the inner foot side portion of the wearer's foot, an outer foot side wall portion 22B configured to cover the outer foot side portion of the wearer's foot, a rear side wall portion 22C configured to cover the rear surface of the heel portion of the wearer's foot, and a front side wall portion 22D configured to cover the front surface of the toe portion of the wearer's foot.

[0043] Accordingly, the inner foot side wall portion 22A of the upper body 20 is positioned so as to overlap with the inner foot side peripheral wall portion 12A of the shell 10, and the outer foot side wall portion 22B of the upper body 20 is positioned so as to overlap with the outer foot side peripheral wall portion 12B of the shell 10. Also, the rear side wall portion 22C of the upper body 20 is positioned so as to overlap with the rear side peripheral wall portion 12C of the shell 10, and the front side wall portion 22D of the upper body 20 is positioned so as to overlap with the front side peripheral wall portion 12D of the shell 10.

[0044] The upper body 20 is provided with a belt-like portion 23, and this belt-like portion 23 is for fixing the sole body 30 to the upper body 20. More specifically, the belt-like portion 23 is connected to the inner foot side wall portion 22A and the outer foot side wall portion 22B so as to bridge them, and the sole body 30 is sandwiched between the belt-like portion 23 and the lower wall portion 21 of the upper body 20, whereby the sole body 30 is fixed to the upper body 20.

[0045] The upper body 20 is also provided with a tightening portion 26, but the details of this tightening portion 26 will be described in detail later.

[0046] As shown in FIGS. 1 to 7, an opening 20a described above is provided at the upper end of the side wall portion 22. This opening 20a is located across the middle foot portion R2 and the rear foot portion R3. The opening 20a corresponds to the wearing opening 2 described above, and when worn, the foot of the wearer is inserted into the insertion space SP3 through the opening 20a. Note that the upper end portion of the side wall portion 22 that defines the opening 20a is positioned so as to protrude upward in the vertical direction Z from the mouth portion 10a of the shell 10. Thereby, it becomes possible to avoid the shell 10 directly contacting the ankle of the wearer when worn, and it becomes possible to ensure a good wearing comfort.

[0047] As shown in FIGS. 5 to 8, the sole body 30 includes a midsole 31 as a cushioning material and a plate 32 as a repellent material. These midsole 31 and plate 32 are laminated in the vertical direction Z such that the midsole 31 is positioned above the plate 32. The sole body 30 is housed in the shell 10 and is further housed inside the upper body 20.

[0048] The midsole 31 supports the sole of the wearer's foot by forming a part of the portion that contacts the foot of the wearer of the shoe 1A (more specifically, the portion that contacts the sole of the wearer's foot), and has a substantially flat plate-like shape. The midsole 31 has a top surface 31a and a bottom surface 31b which are a pair of main surfaces. The midsole 31 is composed of an elastically deformable member having a predetermined thickness so that a desired cushioning performance can be obtained during landing and the like.

[0049] Here, the top surface 31a of the midsole 31 may be configured to have an uneven shape corresponding to the shape of the sole of the wearer's foot from the viewpoint of suppressing the collapse of the wearer's ankle (so-called pronation) that may occur during landing and the collapse of the arch of the wearer's foot.

[0050] The plate 32 has a first main surface 32a and a second main surface 32b which are a pair of main surfaces positioned in the thickness direction, and a peripheral end surface 32c connecting these first main surface 32a and second main surface 32b. The first main surface 32a faces the upper side in the vertical direction Z, and the second main surface 32b faces the lower side in the vertical direction Z. The plate 32 is composed of a hard member thinner in thickness than the midsole 31 so that desired rebound performance can be obtained at the time of kicking out or the like.

[0051] As described above, the sole body 30 is configured by laminating the midsole 31 and the plate 32, and the bottom surface 31b of the midsole 31 is in contact with the first main surface 32a of the plate 32. These midsole 31 and plate 32 may be joined by, for example, an adhesive, but from the viewpoint of reducing the usage amount of the organic solvent, it is preferable that these midsole 31 and plate 32 are not joined.

[0052] The sole body 30 has an upper surface defined by the top surface 31a of the midsole 31 described above, a lower surface defined by the second main surface 32b of the plate 32 described above, and a peripheral surface including the peripheral end surface 32c of the plate 32 described above. Among these, the lower surface of the sole body 30 covers the inner surface 21a of the lower wall portion 21 of the upper body 20, and the peripheral surface of the sole body 30 faces the lower end side portion of the inner peripheral surface 22a of the side wall portion 22 of the upper body 20. Thereby, the sole body 30 is located above the bottom wall portion 11 of the shell 10 and further above the lower wall portion 21 of the upper body 20.

[0053] As shown in FIGS. 6 and 7, the additional sole body 40 supports the sole (particularly the lower surface of the heel portion) of the wearer's foot, and has a flat shape in which its thickness decreases from the rear end to the front end in the front-rear direction X. The additional sole body 40 functions as a cushioning material, and is composed of an elastically deformable member so that desired cushioning performance can be obtained at the time of landing or the like. Here, the elastic modulus of the additional sole body 40 is different from the elastic modulus of the midsole 31 as the cushioning material included in the sole body 30 described above.

[0054] The additional sole body 40 is located at the rear foot part R3 as described above, is housed in the shell 10, and is disposed outside the upper body 20. As a result, the lower surface of the additional sole body 40 covers the inner surface 11a on the rear end side in the front-rear direction X of the bottom wall portion 11 of the shell 10, and the upper surface of the additional sole body 40 covers the outer surface 21b on the rear end side in the front-rear direction X of the lower wall portion 21 of the upper body 20. Further, the end surface of the additional sole body 40 (that is, the surface connecting the upper surface and the lower surface of the additional sole body 40) covers a part of the inner peripheral surface 12a on the lower end side in the vertical direction Z of the peripheral wall portion 12 of the shell 10.

[0055] Thus, in addition to the midsole 31 as a cushioning material included in the sole body 30 described above, by disposing the additional sole body 40 as a cushioning material having an elastic modulus different from that of the midsole 31 at a position corresponding to the rear foot part R3, it is possible to more easily optimize the cushioning performance for the heel part at the time of landing.

[0056] That is, at the time of landing, particularly high foot pressure is applied to the sole of the shoe at the rear foot part R3. Therefore, in order to sufficiently relieve this foot pressure, it is necessary to enhance the cushioning performance of the cushioning material disposed in this part. In that case, considering that the above-described midsole 31 is configured by a single member disposed across the front foot part R1, the mid foot part R2, and the rear foot part R3, it is assumed that the thickness of the midsole 31 at the rear foot part R3 is increased compared to the thicknesses of the front foot part R1 and the mid foot part R2. However, when the thickness of the midsole 31 at the rear foot part R3 is increased, although it is necessary to obtain corresponding cushioning performance also at the front foot part R1 and the mid foot part R2, a problem occurs in that significant sinking of the heel at the time of landing at the rear foot part R3 occurs, and particularly at a position corresponding to the toenail of the wearer's foot, a large gap is generated between the toenail and the upper body 20.

[0057] In this regard, as described above, by disposing an additional sole body 40, which is a cushioning material having an elastic modulus different from that of the midsole 31 as the cushioning material included in the sole body 30, in the rear foot portion R3, while maintaining the necessary cushioning performance in the front foot portion R1 and the mid foot portion R2, it becomes possible to enhance the cushioning performance in the rear foot portion R3 compared to the cushioning performance in the front foot portion R1 and the mid foot portion R2, and moreover, it is possible to suppress the occurrence of excessive sinking of the heel portion at the time of landing. Therefore, as described above, it becomes possible to more easily optimize the cushioning performance with respect to the heel portion at the time of landing, and as a result, it is possible to suppress the occurrence of a gap between the foot of the wearer and the upper body 20.

[0058] Here, the thickness of the additional sole body 40 is preferably larger than the thickness of the midsole 31, particularly in the portion that supports the heel portion of the wearer's foot. Further, the elastic modulus of the additional sole body 40 is preferably lower than the elastic modulus of the midsole 31. By configuring in this way, at the time of landing, it becomes possible to make the deformation amount of the additional sole body 40 larger than the deformation amount of the midsole 31. Therefore, while ensuring high cushioning performance, it is possible to reduce the gap generated between the foot of the wearer and the upper body 20 as described above.

[0059] Further, in the present embodiment, as described above, the additional sole body 40 is disposed between the bottom wall portion 11 of the shell 10 and the lower wall portion 21 of the upper body 20. By configuring in this way, since the upper body 20 can be downsized by the amount corresponding to not disposing the additional sole body 40 inside the upper body 20, it contributes to the weight reduction of the shoe 1A.

[0060] In addition, when landing, particularly high foot pressure is applied to the shoe sole at the rear foot part R3. As a result, the cushioning material in the part located at the rear foot part R3 is more likely to deteriorate than the cushioning material in the parts located at the front foot part R1 and the midfoot part R2, and there is a problem that the cushioning performance deteriorates due to long-term use. In this regard, as in the present embodiment, by dividing the cushioning material in the part located at the rear foot part R3 into the midsole 31 and the additional sole body 40, it becomes possible to replace only the additional sole body 40 that is more likely to deteriorate, and it becomes possible to use the shoe 1A for a longer period of time.

[0061] As shown in FIGS. 6 and 7, the heel counter 50 covers the circumferential surface of the heel part of the wearer's foot (that is, the inner ankle part and the outer ankle part of the wearer's foot and the rear surface of the heel part of the part located between them), and is configured by a curved plate having a substantially C-shaped shape when viewed along the direction orthogonal to the grounding surface 3. The heel counter 50 is a member for reinforcing the inner foot side peripheral wall part 12A and the outer foot side peripheral wall part 12B of the shell 10 in the part corresponding to the rear foot part R3, and the rear side peripheral wall part 12C of the shell 10.

[0062] The heel counter 50 is configured by a member harder than the shell 10 and the upper body 20. The heel counter 50 includes an enclosing part 51 that covers the circumferential surface of the heel part of the wearer's foot, and a protruding part 52 that continuously extends from the lower end of the enclosing part 51.

[0063] The enclosing part 51 has a first part 51A that covers the inner foot side circumferential surface of the heel part of the wearer's foot (that is, the inner ankle part of the wearer's foot), a second part 51B that covers the outer foot side circumferential surface of the heel part of the wearer's foot (that is, the outer ankle part of the wearer's foot), and a third part 51C that connects the first part 51A and the second part 51B and covers the rear surface of the heel part of the wearer's foot.

[0064] As a result, the first portion 51A of the surrounding portion 51 is positioned between and overlaps each of the inner foot side peripheral wall portion 12A of the shell 10 and the inner foot side wall portion 22A of the upper body 20, and the second portion 51B of the surrounding portion 51 is positioned between and overlaps each of the outer foot side peripheral wall portion 12B of the shell 10 and the outer foot side wall portion 22B of the upper body 20. Further, the third portion 51C of the surrounding portion 51 is positioned between and overlaps each of the rear side peripheral wall portion 12C of the shell 10 and the rear side wall portion 22C of the upper body 20.

[0065] Therefore, since the peripheral surface of the heel portion of the wearer's foot is surrounded by the surrounding portion 51 of the heel counter 50, it is possible to suppress the shell 10 and the upper body 20 of the portion covering the peripheral surface of the heel portion of the wearer's foot from tilting in the left - right direction Y, and in particular, it is possible to ensure the stability at the time of landing.

[0066] The protruding portion 52 extends from the lower end of the surrounding portion 51 toward the bottom wall portion 11 side and protrudes toward the peripheral wall portion 12 side. More specifically, the protruding portion 52 is provided so as to continuously extend from any of the first portion 51A, the second portion 51B, and the third portion 51C of the surrounding portion 51, and thereby the protruding portion 52 has a flare shape. This protruding portion 52 is a part for fixing the heel counter 50 to the shell 10, but the details thereof will be described later.

[0067] In the shoe 1A according to the present embodiment described above, the peripheral surface of the wearer's foot is covered by the upper body 20, and the sole of the wearer's foot is covered by the midsole 31 of the sole body 30. Therefore, when the wearer wears the shoe 1A, the wearer's foot comes into contact with the soft upper body 20 that can be flexibly deformed and the relatively soft sole body 30 that can be elastically deformed. Therefore, by adopting the above configuration, the shell 10 does not directly contact the wearer's foot, and the shoe 1A with a comfortable wearing feeling can be obtained.

[0068] However, the upper body 20 and the sole body 30 do not necessarily need to come into contact with the wearer's foot entirely. In a range where the wearing comfort is not impaired, cutout-shaped or opening-shaped cutout portions or the like may be provided in the upper body 20 and the sole body 30.

[0069] <B. Material of Each Component> Next, the materials of each of the above-described components will be described. Note that the specific materials shown below are merely examples and are not limited thereto.

[0070] The shell 10 may basically be made of any material as long as it has flexibility, but preferably has appropriate strength. From this viewpoint, the shell 10 is preferably made of a resin material or a rubber material. Here, the material constituting the shell 10 may be a reactive material that starts a reaction by light (for example, ultraviolet light) or heat, and may be, for example, a polymer or a reactive monomer.

[0071] More specifically, when the shell 10 is made of resin, for example, it can be made of a polyolefin resin, an ethylene-vinyl acetate copolymer (EVA), a polyamide-based thermoplastic elastomer (TPA, TPAE), a thermoplastic polyurethane (TPU), or a polyester-based thermoplastic elastomer (TPEE). On the other hand, when the shell 10 is made of rubber, for example, it can be made of butadiene rubber.

[0072] The shell 10 can also be composed of a polymer composition. In that case, examples of the polymer to be contained in the polymer composition include olefin-based polymers such as olefin-based elastomers and olefin-based resins. Examples of the olefin-based polymer include polyethylene (e.g., linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE), etc.), polypropylene, ethylene-propylene copolymer, propylene-1-hexene copolymer, propylene-4-methyl-1-pentene copolymer, propylene-1-butene copolymer, ethylene-1-hexene copolymer, ethylene-4-methyl-pentene copolymer, ethylene-1-butene copolymer, 1-butene-1-hexene copolymer, 1-butene-4-methyl-pentene, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-ethyl methacrylate copolymer, ethylene-butyl methacrylate copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-butyl acrylate copolymer, propylene-methacrylic acid copolymer, propylene-methyl methacrylate copolymer, propylene-ethyl methacrylate copolymer, propylene-butyl methacrylate copolymer, propylene-methyl acrylate copolymer, propylene-ethyl acrylate copolymer, propylene-butyl acrylate copolymer, ethylene-vinyl acetate copolymer (EVA), polyolefins such as propylene-vinyl acetate copolymer, etc.

[0073] Further, the above polymer may be, for example, an amide-based polymer such as an amide-based elastomer or an amide-based resin. Examples of the amide-based polymer include polyamide 6, polyamide 11, polyamide 12, polyamide 66, polyamide 610, polyether block amide (PEBA), etc.

[0074] Further, the above polymer may be, for example, an ester-based polymer such as an ester-based elastomer or an ester-based resin. Examples of the ester-based polymer include polyethylene terephthalate, polybutylene terephthalate, etc.

[0075] Further, the polymer may be, for example, a urethane-based polymer such as a urethane-based elastomer or a urethane-based resin. Examples of the urethane-based polymer include polyester-based polyurethane, polyether-based polyurethane, etc., and urethane acrylate can be preferably used.

[0076] Further, the polymer may be, for example, a styrene-based polymer such as a styrene-based elastomer or a styrene-based resin. Examples of the styrene-based elastomer include styrene-ethylene-butylene copolymer (SEB), styrene-butadiene-styrene copolymer (SBS), hydrogenated product of SBS (styrene-ethylene-butylene-styrene copolymer (SEBS)), styrene-isoprene-styrene copolymer (SIS), hydrogenated product of SIS (styrene-ethylene-propylene-styrene copolymer (SEPS)), styrene-isobutylene-styrene copolymer (SIBS), styrene-butadiene-styrene-butadiene (SBSB), styrene-butadiene-styrene-butadiene-styrene (SBSBS), etc. Examples of the styrene-based resin include polystyrene, acrylonitrile styrene resin (AS), acrylonitrile butadiene styrene resin (ABS), etc.

[0077] Further, the polymer may be, for example, an acrylic-based polymer such as polymethyl methacrylate, a urethane-based acrylic polymer, a polyester-based acrylic polymer, a polyether-based acrylic polymer, a polycarbonate-based acrylic polymer, an epoxy-based acrylic polymer, a conjugated diene polymerization-based acrylic polymer and its hydrogenated product, a urethane-based methacrylic polymer, a polyester-based methacrylic polymer, a polyether-based methacrylic polymer, a polycarbonate-based methacrylic polymer, an epoxy-based methacrylic polymer, a conjugated diene polymerization-based methacrylic polymer and its hydrogenated product, a polyvinyl chloride-based resin, a silicone-based elastomer, butadiene rubber (BR), isoprene rubber (IR), chloroprene (CR), natural rubber (NR), styrene butadiene rubber (SBR), acrylonitrile butadiene rubber (NBR), butyl rubber (IIR), etc.

[0078] Note that the manufacturing method of the shell 10 is not particularly limited, but the shell 10 can be manufactured, for example, by injection molding, casting, or molding using a three-dimensional laminating apparatus. In particular, if the shell 10 is manufactured by molding using a three-dimensional laminating apparatus, shells 10 with various structures that are difficult to manufacture by injection molding or casting can be manufactured. Further, even when adopting molding using a three-dimensional laminating apparatus, the molding method is not particularly limited, but preferably, a thermal melting lamination molding method, a stereolithography method, or a powder sintering lamination molding method can be used.

[0079] The upper body 20 may basically be made of any material as long as it can be flexibly deformed, but preferably, a woven fabric, a knitted fabric, a non-woven fabric, synthetic leather, resin, or the like is used. More specifically, the upper body 20 can be made of, for example, natural fibers such as cotton, hemp, and silk, and also can be made of synthetic fibers composed of, for example, polyamide resins such as nylon, polyester resins, polyurethane resins, polyvinyl alcohol resins such as vinylon, polyacrylonitrile resins such as exlan and cashmilon, polyvinyl chloride resins such as teviron and envilon, polypropylene resins such as pyren, polyethylene resins, polystyrene resins, or the like. Further, the upper body 20 can also be made of, for example, rayon or cupra as recycled fibers.

[0080] In particular, as will be described later, if a woven fabric, a knitted fabric, a non-woven fabric, or the like of a synthetic fiber having heat shrinkability is used, the upper body 20 that fits better to the wearer's foot can be obtained. Examples of the synthetic fiber having heat shrinkability include those mainly composed of, for example, polyester resins and polyurethane resins, and in particular, Hytrel (trademark), which is a type of polyester resin, is preferably mentioned.

[0081] That is, when the upper body 20 is made of a woven fabric, knitted fabric, non-woven fabric, etc. of synthetic fibers having heat shrinkability, it is formed into a bag shape in advance, and heat treatment is performed in a state where a last is inserted therein. By heat shrinking due to heating, the upper body 20 undergoes a shape change to a state of being in close contact with the last, and the shape after the change is retained. Therefore, if a last corresponding to the shape of the wearer's foot is prepared and the upper body 20 is formed using the same, an upper body 20 that fits the wearer's foot can be manufactured. Furthermore, if the heat treatment using the above-described last is performed in a state where the upper body 20 is incorporated into the shell 10, the upper body 20 will also fit the shell 10, and further improvement in fit can be achieved.

[0082] As the above-described last, a standard shape corresponding to the size of the wearer's foot may be used. However, if a last manufactured based on the foot shape data obtained by measuring the actual wearer's foot is used, the fit of the manufactured shoe 1A to the wearer's foot will be significantly improved.

[0083] The midsole 31 and the additional sole body 40 may basically be made of any material as long as they can be elastically deformed, but it is preferable that they are made of a member having appropriate strength and excellent cushioning properties. From this viewpoint, as the midsole 31 and the additional sole body 40, for example, a resin foam material containing a resin material as a main component and a foaming agent or a crosslinking agent as a sub-component is used. Alternatively, a rubber foam material containing a rubber material as a main component and a plasticizer, a foaming agent, a reinforcing agent, and a crosslinking agent as sub-components may be used.

[0084] Particularly preferably, the midsole 31 and the additional sole body 40 can be made of a foamed material such as a polyolefin resin, an ethylene-vinyl acetate copolymer (EVA), a polyamide-based thermoplastic elastomer (TPA, TPAE), a thermoplastic polyurethane (TPU), or a polyester-based thermoplastic elastomer (TPEE). Note that the midsole 31 and the additional sole body 40 do not necessarily have to be made of a foamed material, and they may be made of a non-foamed material.

[0085] The plate 32 only needs to be made of a material harder than the material constituting the midsole 31, and its material is not particularly limited. Examples of the material of the plate 32 include fiber-reinforced resins using carbon fiber, glass fiber, aramid fiber, Dyneema fiber (registered trademark), Zylon fiber (registered trademark), boron fiber, etc. as reinforcing fibers and using epoxy resin, polyester resin, phenol resin, polyamide resin, polypropylene resin, polyethylene resin, polyurethane resin, etc. as the base material, and non-fiber-reinforced resins made of polymer resins such as urethane-based thermoplastic elastomer (TPU), amide-based thermoplastic elastomer (TPA), and ethylene-vinyl acetate copolymer (EVA).

[0086] The heel counter 50 only needs to be made of a material harder than the material constituting the shell 10, and its material is not particularly limited. Examples of the material of the heel counter 50 include polymer resins such as urethane-based thermoplastic elastomer (TPU), amide-based thermoplastic elastomer (TPA), ethylene-vinyl acetate copolymer (EVA), and thermosetting urethane elastomer (TSU), and thermoplastic rubber.

[0087] Note that the method for manufacturing the heel counter 50 is not particularly limited, but the heel counter 50 can be manufactured, for example, by injection molding, casting, or molding using a three-dimensional laminating apparatus. In particular, if the heel counter 50 is manufactured by molding using a three-dimensional laminating apparatus, heel counters 50 with various structures that are difficult to manufacture by injection molding or casting can be manufactured. Also, even when adopting molding using a three-dimensional laminating apparatus, the molding method is not particularly limited, but preferably, a thermal melting lamination molding method, a stereolithography method, or a powder sintering lamination molding method can be used.

[0088] <C. Schematic Assembly Method of Shoes> Next, with reference to FIG. 8 described above, a schematic assembly method of the shoe 1A according to the present embodiment will be described.

[0089] As shown in FIG. 8, the shoe 1A according to the present embodiment is manufactured by mutually assembling a shell 10, an upper body 20, a midsole 31, a plate 32, an additional sole body 40, and a heel counter 50. These shell 10, upper body 20, midsole 31, plate 32, additional sole body 40, and heel counter 50 may be manufactured by any method.

[0090] Specifically, first, the additional sole body 40 and the heel counter 50 are inserted into the internal space of the shell 10. Here, since the shell 10 has flexibility, the additional sole body 40 can also be elastically deformed, and the heel counter 50 can also be flexibly deformed, so the additional sole body 40 and the heel counter 50 can be inserted into the shell 10 through the mouth portion 10a provided at the upper end of the shell 10. The additional sole body 40 inserted into the shell 10 is arranged along the inner surface 11a on the rear end side in the front-rear direction X of the bottom wall portion 11 of the shell 10. Also, the heel counter 50 inserted into the shell 10 is arranged along the inner peripheral surface 12a on the rear end side in the front-rear direction X of the peripheral wall portion 12 of the shell 10.

[0091] Next, the upper body 20 is inserted into the internal space of the shell 10. Here, since the shell 10 has flexibility and the upper body 20 can also be flexibly deformed, the upper body 20 can be inserted into the shell 10 through the mouth portion 10a provided at the upper end of the shell 10. The upper body 20 inserted into the shell 10 is arranged along the inner surface 11a of the bottom wall portion 11 and the inner peripheral surface 12a of the peripheral wall portion 12 of the shell 10. Also, the upper end portion of the side wall portion 22 of the portion defining the opening 20a is in a state of being pulled out from the mouth portion 10a of the shell 10 toward the outside. At this time, the upper surface of the additional sole body 40 and the inner peripheral surface of the heel counter 50 previously accommodated in the shell 10 will be covered by the upper body 20.

[0092] Next, the sole body 30 including the midsole 31 and the plate 32 is inserted into the upper body 20, and thus is also inserted into the internal space of the shell 10. The midsole 31 and the plate 32 may be individually inserted into the upper body 20, or they may be inserted into the upper body 20 together. Here, while the midsole 31 can be elastically deformed, the plate 32 is relatively rigid and does not easily deform in its in-plane direction. However, since the upper body 20 can be flexibly deformed and the shell 10 also has flexibility, the sole body 30 including the midsole 31 and the plate 32 can be inserted into the upper body 20 through the opening 20a provided at the upper end of the upper body 20. At this time, the insertion of the midsole 31 and the plate 32 is not hindered by the mouth portion 10a provided at the upper end of the shell 10. The sole body 30 including the midsole 31 and the plate 32 inserted into the upper body 20 is arranged along the inner surface 21a of the lower wall portion 21 of the upper body 20. Thereby, the sole body 30 is arranged at an appropriate position in the internal space of the shell 10.

[0093] By going through the above assembly procedure, the mutual assembly of the shell 10, the upper body 20, the midsole 31, the plate 32, the additional sole body 40, and the heel counter 50 is completed, and thereby the manufacturing of the shoe 1A according to the present embodiment described above is completed. Note that the above-described assembly method is merely an example, and other assembly methods (for example, other assembly procedures, the arrangement positions of each member different from the above, etc.) may be adopted.

[0094] <D. Parentheses> Thus, the shoe 1A according to the present embodiment can be manufactured by a very simple operation of mutually assembling the shell 10, the upper body 20, the sole body 30, the additional sole body 40, and the heel counter 50, which are individually manufactured in advance. Therefore, its manufacturing is facilitated as compared with the prior art. In the shoe 1A according to the present embodiment, when the shell 10, the upper body 20, the sole body 30, the additional sole body 40, and the heel counter 50 are mutually assembled, they are configured to be easily fixed. Moreover, the use of an adhesive is not required for the assembly of the midsole 31, the plate 32, the additional sole body 40, and the heel counter 50 to the shell 10 and the upper body 20. These points will be described in detail later.

[0095] <E. Fixing Structure of Sole Body to Shell> FIG. 9 is an enlarged view of the region IX shown in FIG. 6, and FIG. 10 is an enlarged cross-sectional view of the main part of the shoe shown in FIG. 1. FIG. 11 is a partially broken perspective view of the shell shown in FIG. 1 along the line XI-XI shown in FIG. 3. Further, FIG. 12 is a schematic view showing the formation range of the pressing surface provided on the peripheral wall portion of the shell shown in FIG. 1. Next, with reference to FIGS. 9 to 12 and FIGS. 6 and 7 described above, the fixing structure of the sole body 30 to the shell 10 in the shoe 1A according to the present embodiment will be described in detail.

[0096] Here, FIGS. 9 and 10 are both cross-sectional views of the shoe 1A cut along a plane orthogonal to the shoe center SC. The cross-section shown in FIG. 9 is the cross-section of the shoe 1A at the portion where the heel counter 50 is disposed, while the cross-section shown in FIG. 10 is the cross-section of the portion where the heel counter 50 is not disposed. More specifically, the cross-section shown in FIG. 9 is the cross-section at the rear foot portion R3, and the cross-section shown in FIG. 10 is the cross-section at the midfoot portion R2. Further, in FIG. 12, illustration of the detailed structure of the shoe 1A is omitted, and the formation range of the pressing surface 14 is colored in a dark color to show the formation range of the pressing surface 14 when viewed from the upper side along the vertical direction Z.

[0097] As shown in FIGS. 6, 7, and 9 to 11, in the shoe 1A according to the present embodiment, a constricted portion 13A is provided in the peripheral wall portion 12 of the shell 10. The constricted portion 13A is formed by constricting a predetermined portion of the peripheral wall portion 12 toward the inside of the shell 10 (that is, toward the insertion space SP3 side). As a result, the inner peripheral surface 12a of the peripheral wall portion 12 at the portion where the constricted portion 13A is provided protrudes toward the inside of the shell 10, while a depression is formed in the outer peripheral surface 12b of the peripheral wall portion 12 at the portion where the constricted portion 13A is provided.

[0098] The constricted portion 13A extends along the circumferential direction of the peripheral wall portion 12. More specifically, the constricted portion 13A extends from the rear end side portion in the front-rear direction X of the inner-foot-side peripheral wall portion 12A of the portion included in the front foot portion R1 along the circumferential direction of the peripheral wall portion 12, via the rear end position PR (see FIG. 7, etc.), to the rear end side portion in the front-rear direction X of the outer-foot-side peripheral wall portion 12B of the portion included in the front foot portion R1.

[0099] Here, by providing the constricted portion 13A described above on the peripheral wall portion 12, the inner peripheral surface 12a of the peripheral wall portion 12 includes a surface that extends toward the inside of the shell 10 and faces the bottom wall portion 11 side. The surface of the peripheral wall portion 12 that faces the bottom wall portion 11 side corresponds to the lower surface of the constricted portion 13A, and the lower surface of the constricted portion 13A functions as a pressing surface 14 for fixing the sole body 30. That is, in the shoe 1A according to the present embodiment, the end portion of the sole body 30 is inserted into the space below the portion where the constricted portion 13A is provided, so that the sole body 30 is sandwiched between the pressing surface 14 and the bottom wall portion 11, and thereby the sole body 30 is fixed to the shell 10.

[0100] As described above, in the shoe 1A according to the present embodiment, since the constricted portion 13A is provided so as to extend along the circumferential direction of the peripheral wall portion 12, the above-described pressing surface 14 is also positioned so as to extend along the circumferential direction of the peripheral wall portion 12.

[0101] That is, as shown in FIG. 12, the pressing surface 14 extends along the circumferential direction of the peripheral wall portion 12 from the rear end side portion in the front-rear direction X of the inner-foot-side peripheral wall portion 12A of the portion included in the front foot portion R1, via the rear end position PR, to the rear end side portion in the front-rear direction X of the outer-foot-side peripheral wall portion 12B of the portion included in the front foot portion R1. Therefore, the pressing surface 14 includes an inner-foot-side pressing surface 14A provided on the inner-foot-side peripheral wall portion 12A, an outer-foot-side pressing surface 14B provided on the outer-foot-side peripheral wall portion 12B, and a rear-side pressing surface 14C provided on the rear-side peripheral wall portion 12C, and these inner-foot-side pressing surface 14A, outer-foot-side pressing surface 14B, and rear-side pressing surface 14C extend continuously with each other along the circumferential direction of the peripheral wall portion 12.

[0102] As a result, the sole body 30 will be sandwiched between each of these inner foot side pressing surfaces 14A, outer foot side pressing surfaces 14B, and rear side pressing surfaces 14C and the bottom wall portion 11. Therefore, the sole body 30 will be held by the shell 10 in the vertical direction Z at both ends in the left-right direction Y, and will be held by the shell 10 in the vertical direction Z at the rear end in the front-rear direction X.

[0103] Therefore, by adopting the above configuration, the sole body 30 can be stably fixed to the shell 10, and it is possible to effectively suppress the sole body 30 from being displaced inside the shell 10 during use. Therefore, by adopting the above configuration, the shoe 1A can be made such that the fit to the wearer's foot and the stability at the time of landing are greatly improved. In addition, since the pressing surface 14 for fixing the sole body 30 can be integrally provided on the shell 10 during the manufacture of the shell 10, it is also possible to reduce the number of parts and simplify the manufacturing process.

[0104] Note that the pressing surface 14 including the above-described inner foot side pressing surface 14A, outer foot side pressing surface 14B, and rear side pressing surface 14C is positioned so as to extend long along the circumferential direction of the peripheral wall portion 12, while the protruding amount toward the inside of the shell 10 is configured to be relatively small. By configuring in this way, the operation of fitting the end portion of the sole body 30 into the space below the pressing surface 14 is facilitated, and more stable fixing of the sole body 30 becomes possible because more portions of the sole body 30 are held by the shell 10.

[0105] Here, the fixing structure of the sole body 30 to the shell 10 described above can stably fix the sole body 30 to the shell 10 without using an adhesive, and in this regard, the amount of organic solvent used can be significantly reduced compared to the case where these fixings are performed using an adhesive. Therefore, by adopting the above configuration, the environmental load can be reduced compared to the conventional case.

[0106] Since the shell 10 has flexibility as described above, when assembling the sole body 30 to the shell 10, the end portion of the sole body 30 can be easily inserted into the space below the portion where the constricted portion 13A is provided because the shell 10 is bent and deformed. Therefore, by adopting the above configuration, the assembly of the sole body 30 to the shell 10 is not made difficult and can be easily performed.

[0107] Further, in the shoe 1A according to the present embodiment, the pressing surface 14 is not provided on the front end side portions in the front-rear direction X of the inner foot side peripheral wall portion 12A and the outer foot side peripheral wall portion 12B of the portion included in the front foot portion R1 and the front side peripheral wall portion 12D. This is because the foot pressure applied to the sole body 30 at the time of landing is large at the rear foot portion R3, while it is relatively small at the front foot portion R1. Therefore, if the sole body 30 is stably fixed to the shell 10 at the rear foot portion R3 and the middle foot portion R2, corresponding effects can be obtained. Also, since the portion corresponding to the front foot portion R1 in the internal space of the shell 10 is located deeper from the opening edge 2, it is assumed that the assembly of the sole body 30 to the shell 10 becomes complicated when the pressing surface 14 is provided in this portion, and this is also to avoid this. However, it is of course possible to provide the pressing surface 14 on the front end side portions in the front-rear direction X of the inner foot side peripheral wall portion 12A and the outer foot side peripheral wall portion 12B of the portion included in the front foot portion R1 and the front side peripheral wall portion 12D.

[0108] Further, in the shoe 1A according to the present embodiment, the pressing surface 14 has an inclined surface shape in which the protruding amount increases as it goes upward in the vertical direction Z, and the midsole 31 is configured to have a substantially trapezoidal cross-sectional view so that the above-described peripheral surface of the sole body 30 (that is, the portion of the sole body 30 that faces the lower end side portion of the inner peripheral surface 22a of the side wall portion 22 of the upper body 20) also has a corresponding inclined surface shape. By configuring in this way, while realizing stable fixing of the sole body 30 by the pressing surface 14, the assembly of the sole body 30 to the shell 10 can be easily performed.

[0109] Note that the pressing surface 14 does not necessarily have to be configured in an inclined surface shape in which the protruding amount increases as it goes upward in the vertical direction Z as described above. It may be configured in an inclined surface shape in which the protruding amount increases as it goes downward in the vertical direction Z, or may be configured in a horizontal plane shape extending in the left - right direction Y.

[0110] Here, when the pressing surface 14 is configured in an inclined surface shape in which the protruding amount increases as it goes upward in the vertical direction Z as described above, the smaller the angle formed by the pressing surface 14 of the inclined surface shape and the horizontal plane, the greater the fixing force with respect to the sole body 30. On the other hand, when the pressing surface 14 is configured in an inclined surface shape in which the protruding amount increases as it goes downward in the vertical direction Z, the greater the angle formed by the pressing surface 14 of the inclined surface shape and the horizontal plane, the greater the fixing force with respect to the sole body 30.

[0111] As described above, in the shoe 1A according to the present embodiment, the sole body 30 includes a mid - sole 31 and a plate 32, and the plate 32 is laminated with the mid - sole 31 by being disposed at a position below the mid - sole 31 in the vertical direction Z. Therefore, by adopting the above configuration, not only the mid - sole 31 but also the plate 32 can be held by the shell 10. Even if the mid - sole 31 and the plate 32 are not adhered to each other, these mid - sole 31 and plate 32 can be stably fixed to the shell 10 at the same time.

[0112] Also, as described above, in the shoe 1A according to the present embodiment, the upper body 20 is housed in the shell 10, and further, the sole body 30 is housed inside the upper body 20. Therefore, as shown in FIGS. 9 and 10, the sole body 30 is sandwiched between the pressing surface 14 and the bottom wall portion 11 with the upper body 20 intervening therebetween. Even in a configuration where the sole body 30 does not directly contact the pressing surface 14, since the upper body 20 is made of a sufficiently flexible member, the sole body 30 can be stably fixed to the shell 10 via the upper body 20.

[0113] Also, as described above, in the shoe 1A according to the present embodiment, the heel counter 50 is located at the rear foot portion R3, and the heel counter 50 is housed in the shell 10 and disposed outside the upper body 20. Therefore, as shown in FIG. 9, the sole body 30 is sandwiched between the pressing surface 14 and the bottom wall portion 11 with the flare-shaped protruding portions 52 of the upper body 20 and the heel counter 50 intervening therebetween. Even in a configuration where the sole body 30 does not directly contact the pressing surface 14, since the upper body 20 is made of a sufficiently flexible member and the shape of the protruding portion 52 of the heel counter 50 corresponds to the shape of the pressing surface 14 and the peripheral surface shape of the sole body 30, the sole body 30 can be stably fixed to the shell 10 via the upper body 20 and the heel counter 50. By adopting this configuration, it is also possible to stably fix the heel counter 50 to the shell 10, but this point will be described in detail later.

[0114] Furthermore, as described above, in the shoe 1A according to the present embodiment, the additional sole body 40 is positioned across the midfoot region R2 and the hindfoot region R3, and the additional sole body 40 is housed in the shell 10 and disposed outside the upper body 20. Here, the lower wall portion 21 of the upper body 20 covers the second main surface 32b of the plate 32 which is the lower surface of the sole body 30, and the additional sole body 40 is disposed between the lower wall portion 21 of the upper body 20 and the bottom wall portion 11. Therefore, the additional sole body 40 is sandwiched and held by the sole body 30 fixed by the pressing surface 14 and the bottom wall portion 11, and thereby is fixed to the shell 10. Therefore, by configuring in this way, it becomes possible to stably fix the sole body 30 and the additional sole body 40 to the shell 10 simultaneously.

[0115] <F. Fixing Structure of Heel Counter to Shell and Upper Body> FIG. 13 is a cross-sectional view for explaining the fixing structure of the heel counter to the shell and the upper body in the shoe shown in FIG. 1. Further, FIG. 14 is an exploded perspective view for explaining the fixing structure shown in FIG. 13, and FIG. 15 is a schematic diagram for explaining the outline of the fixing structure shown in FIG. 13. Next, with reference to FIGS. 13 to 15 and the aforementioned FIGS. 1 to 8, the fixing structure of the heel counter 50 to the shell 10 and the upper body 20 in the shoe 1A according to the present embodiment will be described in detail.

[0116] As shown in FIGS. 1 to 8, in the shoe 1A according to the present embodiment, a belt-like tightening portion 26 is provided at the rear end portion in the front-rear direction X of the upper body 20 and at the upper end portion in the vertical direction Z. The tightening portion 26 is for fixing the heel counter 50 to the upper body 20 and the shell 10.

[0117] As shown in FIGS. 13 to 15, one end in the extending direction of the tightening portion 26 is fixed to the rear wall portion 22C of the upper body 20. The upper body 20 has the above-described lower wall portion 21 and side wall portions 22 as a main body portion, and the tightening portion 26 is provided on the main body portion of the upper body 20 by being fixed to the rear wall portion 22C of the side wall portion 22 among these. The fixing of the tightening portion 26 to the rear wall portion 22C may be performed by any method, but preferably, sewing can be used.

[0118] Here, one end of the tightening portion 26 described above is overlapped by being folded back. By integrally fixing the folded and overlapped portion to the outer peripheral surface 22b of the rear wall portion 22C (in FIG. 15, the stitching portion between the rear wall portion 22C and the tightening portion 26 is indicated by reference numeral A), the entire overlapped portion constitutes the proximal end 26a of the tightening portion 26 as a fixed end. On the other hand, the other end in the extending direction of the tightening portion 26 is pulled out from the rear wall portion 22C by a predetermined length, and the entire pulled-out portion constitutes the distal end 26b of the tightening portion 26 as a free end.

[0119] On the other hand, at the rear end in the front-rear direction X and the upper end in the vertical direction Z of the heel counter 50, a through-hole-shaped insertion portion 57 is provided. This insertion portion 57 is provided in the above-described third portion 51C of the surrounding portion 51 of the heel counter 50, and has a slit-like shape extending along the substantially left-right direction Y corresponding to the belt-like tightening portion 26.

[0120] Further, at the rear end in the front-rear direction X and the upper end in the vertical direction Z of the shell 10, a through-hole-shaped insertion portion 17 is provided. This insertion portion 17 is provided in the rear peripheral wall portion 12C of the peripheral wall portion 12 of the shell 10, and has a slit-like shape extending along the substantially left-right direction Y corresponding to the belt-like tightening portion 26.

[0121] The insertion portion 57 provided in the heel counter 50 and the insertion portion 17 provided in the shell 10 are provided at substantially the same positions in the vertical direction Z and the left - right direction Y. As a result, these insertion portions 57, 17 face each other in the front - rear direction X.

[0122] The tip 26b of the tightening portion 26 described above is inserted into these insertion portions 57, 17, and the tip 26b of the tightening portion 26 in the portion inserted into the insertion portions 57, 17 and pulled out to the outside of the shell 10 reaches the base end 26a after being further folded back.

[0123] Here, a male - type hook - and - loop fastener is provided on one of the base end 26a and the tip 26b of the tightening portion 26, and a female - type hook - and - loop fastener is provided on the other of the base end 26a and the tip 26b of the tightening portion 26. Therefore, the portion of the tip 26b that is inserted into the insertion portions 57, 17 and further folded back to reach the base end 26a is attached to the base end 26a by being superposed on the base end 26a, and the male - type hook - and - loop fastener and the female - type hook - and - loop fastener engage with each other.

[0124] In this way, in the shoe 1A according to the present embodiment, the tightening portion 26 is configured to be tightened with an axis extending in the left - right direction Y (in FIG. 15, the axis is schematically shown by a dashed - dotted line and denoted by reference numeral AX) as the tightening center in a state of being inserted into the insertion portions 57, 17.

[0125] As a result, with the tightening portion 26 inserted into the insertion portions 57 and 17, the heel counter 50 and the shell 10 are tightened by the tightening portion 26, so that the heel counter 50 and the shell 10 are fixed to the upper body 20. In other words, the tightening portion 26 is provided on the upper body 20, and the heel counter 50 at a portion located above the insertion portion 57 in the vertical direction Z and the shell 10 at a portion located above the insertion portion 17 in the vertical direction Z are surrounded and held by the loop-shaped tip 26b formed by the tightening portion 26, so that the shell 10, the upper body 20, and the heel counter 50 are integrally fixed to each other.

[0126] Therefore, at the upper end portion on the rear end side of the shoe 1A provided with the tightening portion 26 and the insertion portions 57 and 17, the heel counter 50 can be fixed to the shell 10 and the upper body 20, and it is possible to prevent the heel counter 50 from being displaced at the upper end portion on the rear end side of the shoe 1A.

[0127] In the shoe 1A according to the present embodiment, the base end 26a of the tightening portion 26 is provided at a position higher than either the insertion portion 57 provided on the heel counter 50 or the insertion portion 17 provided on the shell 10. By configuring in this way, it is possible to avoid the base end 26a of the tightening portion 26 from being pinched between the foot of the wearer, the heel counter 50, and the shell 10 during wearing, so that the shoe 1A with a comfortable wearing feeling can be obtained.

[0128] In addition, in the shoe 1A according to the present embodiment, as described above, the sole body 30 is sandwiched between the pressing surface 14 and the bottom wall portion 11 with the flare-shaped protruding portions 52 of the upper body 20 and the heel counter 50 intervening in the rear foot portion R3, whereby the sole body 30 is fixed to the shell 10 (see FIGS. 6, 7, and 9). In other words, the heel counter 50 is fixed to the shell 10 and the upper body 20 by the flare-shaped protruding portions 52 thereof being sandwiched between the pressing surface 14 and the bottom wall portion 11.

[0129] Here, as described above, the flare-shaped protruding portions 52 are provided over the entire circumference of the lower end of the surrounding portion 51 of the heel counter 50. Therefore, at the lower end portion on the rear end side of the shoe 1A provided with the protruding portions 52, the heel counter 50 can be fixed to the shell 10 and the upper body 20, and it is possible to prevent the heel counter 50 from being displaced at the lower end portion on the rear end side of the shoe 1A.

[0130] Therefore, by adopting the above configuration, the heel counter 50 can be stably fixed to the shell 10 and the upper body 20 at the upper end portion and the lower end portion on the rear end side of the shoe 1A, and the shoe 1A can be made such that the fit to the wearer's foot and the stability at the time of landing are significantly improved.

[0131] Here, the fixing structure of the heel counter 50 to the shell 10 and the upper body 20 described above can stably fix the heel counter 50 to the shell 10 and the upper body 20 without using an adhesive. In this regard, compared with the case where these fixings are performed using an adhesive, the amount of organic solvent used can be significantly reduced. Therefore, by adopting the above configuration, the environmental load can be reduced more than before.

[0132] In the shoe 1A according to the present embodiment, the heel counter 50 corresponds to the aforementioned first member, the shell 10 corresponds to the aforementioned second member, and the upper body 20 corresponds to the aforementioned third member. Therefore, the insertion portion 57 provided in the heel counter 50 corresponds to the aforementioned first insertion portion, and the insertion portion 17 provided in the shell 10 corresponds to the aforementioned second insertion portion.

[0133] <G. Other embodiments of the shell> FIG. 16 is a perspective view showing another embodiment of the shell of the shoe shown in FIG. 1. Hereinafter, with reference to this FIG. 16, another embodiment of the shell 10 of the shoe 1A according to the present embodiment will be described.

[0134] In the present embodiment, as an example, the case where the shell 10 provided in the shoe 1A is of the type shown in FIGS. 1 to 4 and the like has been described. However, as the shell 10, various types can be used as long as they have flexibility. As an example, a shell 10A as shown in FIG. 16 may be used.

[0135] The shell 10A shown in FIG. 16 is configured by a three-dimensional mesh structure in a portion excluding the above-described mesh-like structure portion 10b. Here, the three-dimensional mesh structure is formed by repeatedly arranging a plurality of predetermined unit structures adjacent to each other. Such a three-dimensional structure like this three-dimensional mesh structure is also referred to as a lattice structure or a three-dimensional lattice structure. More specifically, the three-dimensional mesh structure includes a plurality of wire elements connected so as to cross each other, and thus has intersection points formed by the crossing of the wire elements and hole portions 10c located between adjacent wire elements.

[0136] Therefore, when the shell 10A is configured as a three-dimensional mesh structure in this way, innumerable holes 10c are formed so as to reach the inner surface (i.e., the inner surface 11a of the bottom wall portion 11 and the inner peripheral surface 12a of the peripheral wall portion 12) and the outer surface (i.e., the outer surface 11b of the bottom wall portion 11 and the outer peripheral surface 12b of the peripheral wall portion 12). Note that the shell 10A having such a structure can be manufactured relatively easily by shaping using the three-dimensional laminated manufacturing apparatus described above.

[0137] By configuring the shell 10A as a three-dimensional mesh structure in this way, the shell 10A has sufficient strength while having appropriate flexibility, and moreover, the weight of the shoe 1A can be reduced and the breathability can be improved. In addition, since the upper body 20 accommodated in the internal space of the shell 10A can be visually recognized from the outside through the innumerable holes 10c, the design property can also be improved.

[0138] Note that the shell 10A described above is configured such that the portion excluding the mesh-like structure portion 10b described above is configured as a three-dimensional mesh structure (i.e., a three-dimensional lattice structure), but this portion may be configured as a structure having a three-dimensional wall structure instead of this three-dimensional mesh structure.

[0139] Here, the three-dimensional wall structure is a three-dimensional shape formed by a wall whose outer shape is defined by a pair of parallel curved surfaces or planes, and a plurality of unit structures are repeatedly arranged adjacent to each other. Specific examples in that case include, for example, those obtained by adding thickness to a triply periodic minimal surface such as a gyroid structure, a Schwarz P structure, a Schwarz D structure, or those obtained by adding thickness to an octet structure, a cubic structure, a Kelvin structure, etc.

[0140] Alternatively, a part of the shell may be configured as a three-dimensional mesh structure (i.e., a three-dimensional lattice structure), and another part of the shell may be configured as a structure having a three-dimensional wall structure.

[0141] Furthermore, when at least a part of the shell is configured with a three-dimensional mesh structure, for example, the thickness of the wire elements described above may be partially changed, or the size of the unit structure may be partially changed. With this configuration, it is possible to change the physical properties (such as rigidity) of each part of the shell. Also, when at least a part of the shell is configured with a structure having a three-dimensional wall structure, for example, the thickness of the wall described above may be partially changed, or the size of the unit structure may be partially changed. With this configuration, it is possible to change the physical properties (such as rigidity) of each part of the shell.

[0142] (Modification Example Based on Embodiment 1) In the above-described Embodiment 1, the case where the fastening portion is provided on the upper body and the tip of the fastening portion is configured to be attachable to the base end of the fastening portion was exemplified and described. However, the member on which the fastening portion is provided is not limited to the upper body, and the portion to which the tip of the fastening portion is attached is not limited to the base end of the fastening portion. For example, the fastening portion may be provided on the shell or on the heel counter. Also, the tip of the fastening portion may be configured to be attachable to the main body portion of the member on which the fastening portion is provided, or may be configured to be attachable to a member other than the member on which the fastening portion is provided.

[0143] Furthermore, if the tip of the fastening portion is configured to be detachable from the attachment target, it becomes possible to individually replace each member as needed. However, if individual replacement of each member is not assumed, the tip of the fastening portion may be fixed to the attachment target in a non-removable manner. Therefore, as a method for fixing the tip of the fastening portion to the attachment target in a detachable or non-removable manner, various known methods can be used. As an example, the use of the surface fastener exemplified in Embodiment 1 described above is assumed. In addition to this, attachment using a snap-fit structure, fixing using various locking tools made of resin, metal, etc., fixing by adhesion, welding, etc. are also assumed.

[0144] Therefore, considering that various things are assumed for each of these configurations, there will be an infinite number of variations. For this reason, in the following, as representative examples, shoes 1A1 to 1A9 according to the first to ninth modified examples based on Embodiment 1 will be illustrated to explain some of those various variations in detail.

[0145] Here, when explaining shoes 1A1 to 1A9 according to the first to ninth modified examples, in FIGS. 17 to 26 described later used for their explanation, for the convenience of drawing, the configurations of each member (that is, shell 10, upper body 20, and heel counter 50) will be illustrated in a simplified manner. Therefore, the shape, size, thickness, height, etc. of these members are not limited to those shown in the drawings, and various changes are possible. In addition, for the convenience of drawing, the length of the tightening part is shown longer than the actual length. Here, the actual length of the tightening part is appropriately optimized so that there is no excess in the tightening loop formed by the tightening part in the tightened state (that is, the length of the loop of the part that tightens each member in the tightening part). The above points are the same in FIGS. 36 to 38 described later.

[0146] (First Modified Example and Second Modified Example) FIGS. 17 and 18 are schematic diagrams for explaining the fixing structure of the heel counter to the shell and the upper body in shoes according to the first and second modified examples, respectively. Hereinafter, with reference to FIGS. 17 and 18, the fixing structure of the heel counter 50 to the shell 10 and the upper body 20 in shoes 1A1 and 1A2 according to the first and second modified examples based on Embodiment 1 described above will be explained. Note that shoes 1A1 and 1A2 according to the first and second modified examples are different only in the configuration of the shell 10 or the heel counter 50 when compared with shoe 1A according to Embodiment 1 described above.

[0147] As shown in Fig. 17, in the shoe 1A1 according to the first modification, the insertion portion 57 provided in the heel counter 50 is provided at a position higher than the insertion portion 17 provided in the shell 10. That is, the insertion portion 57 is located on the upper side in the vertical direction Z with respect to the insertion portion 17.

[0148] When configured in this way, when the tightening portion 26 is tightened, due to the height difference between the insertion portion 57 and the insertion portion 17, the heel counter 50 is fixed in a state of being pushed downward relative to the shell 10 in the vertical direction Z. Therefore, it becomes possible to fix the heel counter 50 more firmly to the shell 10, and it is possible to effectively prevent the heel counter 50 from lifting up.

[0149] As shown in Fig. 18, in the shoe 1A2 according to the second modification, the insertion portion 57 provided in the heel counter 50 is provided at a position lower than the insertion portion 17 provided in the shell 10. That is, the insertion portion 57 is located on the lower side in the vertical direction Z with respect to the insertion portion 17.

[0150] When configured in this way, when the tightening portion 26 is tightened, due to the height difference between the insertion portion 57 and the insertion portion 17, the heel counter 50 is fixed in a state of being pushed upward relative to the shell 10 in the vertical direction Z. Therefore, combined with the fixing of the lower end side of the heel counter 50 by the above-described protruding portion 52, it becomes possible to fix the heel counter 50 in a state of being pulled along the vertical direction Z, and in this regard, it can be fixed more firmly to the shell 10.

[0151] Therefore, even when the configurations such as those of the first modification and the second modification are adopted, the same effects as those described in the above-described Embodiment 1 can be obtained, and the shoes 1A1 and 1A2 can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0152] (Third Modification) Figure 19 is a schematic diagram for explaining the fixing structure of the heel counter with respect to the shell and the upper body in the shoe according to the third modification. Hereinafter, with reference to this Figure 19, the fixing structure of the heel counter 50 with respect to the shell 10 and the upper body 20 in the shoe 1A3 according to the third modification based on the above-described Embodiment 1 will be described. Note that the shoe 1A3 according to the third modification is different only in the configuration of the upper body 20 when compared with the shoe 1A according to the above-described Embodiment 1.

[0153] As shown in Figure 19, in the shoe 1A3 according to the third modification, the base end 26a as the fixed end of the tightening portion 26 is fixed to the rear side wall portion 22C of the upper body 20 by, for example, stitching or the like, and the tip end 26b as the free end of the portion of the tightening portion 26 that is inserted through the insertion portions 57, 17 and pulled out to the outside of the shell 10 is attached to the rear side wall portion 22C of the upper body 20 at a portion different from the portion where the base end 26a of the tightening portion 26 is fixed.

[0154] Here, one of a male-type hook-and-loop fastener and a female-type hook-and-loop fastener is provided at the tip end 26b of the tightening portion 26, and the other of the male-type hook-and-loop fastener and the female-type hook-and-loop fastener is provided at the rear side wall portion 22C of the portion where the tip end 26b of the tightening portion 26 is fixed. Thereby, the tip end 26b of the tightening portion 26 is attached to the rear side wall portion 22C as the main body portion of the upper body 20.

[0155] Even when such a configuration is adopted, the same effects as those described in the above-described Embodiment 1 can be obtained, and the shoe 1A3 can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0156] (Fourth Modification) FIG. 20 is a schematic diagram for explaining a fixing structure of a heel counter to a shell and an upper body in a shoe according to a fourth modification. Hereinafter, with reference to FIG. 20, a fixing structure of a heel counter 50 to a shell 10 and an upper body 20 in a shoe 1A4 according to a fourth modification based on the above-described first embodiment will be described. Note that the shoe 1A4 according to the fourth modification is different only in the configurations of the heel counter 50 and the tightening portion 26 when compared with the shoe 1A according to the above-described first embodiment.

[0157] As shown in FIG. 20, in the shoe 1A4 according to the fourth modification, a base end 26a as a fixed end of the tightening portion 26 is fixed to the rear side wall portion 22C of the upper body 20 by, for example, sewing or the like, and a tip end 26b as a free end of the tightening portion 26 of a portion inserted through the insertion portions 57 and 17 and drawn out to the outside of the shell 10 is attached to a third portion 51C of a surrounding portion 51 of the heel counter 50.

[0158] Here, one of a male-type hook-and-loop fastener and a female-type hook-and-loop fastener is provided at the tip end 26b of the tightening portion 26, and the other of the male-type hook-and-loop fastener and the female-type hook-and-loop fastener is provided at a third portion 51C of the surrounding portion 51 of the heel counter 50. Thereby, the tip end 26b of the tightening portion 26 is attached to the third portion 51C of the surrounding portion 51 of the heel counter 50.

[0159] Even when such a configuration is adopted, the same effects as those described in the above-described first embodiment can be obtained, and the shoe 1A4 can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0160] (Fifth Modification) FIG. 21 is a schematic view for explaining a fixing structure of a heel counter to a shell and an upper body in shoes according to a fifth modification. Hereinafter, with reference to this FIG. 21, a fixing structure of a heel counter 50 to a shell 10 and an upper body 20 in shoes 1A5 according to a fifth modification based on the above-described first embodiment will be described. Note that the shoes 1A5 according to the fifth modification are different only in the configurations of the shell 10 and the tightening portion 26 when compared with the shoes 1A according to the above-described first embodiment.

[0161] As shown in FIG. 21, in shoes 1A5 according to the fifth modification, a base end 26a as a fixed end of the tightening portion 26 is fixed to a rear side wall portion 22C of the upper body 20 by, for example, stitching or the like, and a tip end 26b as a free end of the tightening portion 26 of a portion inserted through the insertion portions 57 and 17 and pulled out to the outside of the shell 10 is attached to a rear side peripheral wall portion 12C of the shell 10.

[0162] Here, one of a male hook-and-loop fastener and a female hook-and-loop fastener is provided at the tip end 26b of the tightening portion 26, and the other of the male hook-and-loop fastener and the female hook-and-loop fastener is provided at the rear side peripheral wall portion 12C of the shell 10. Thereby, the tip end 26b of the tightening portion 26 is attached to the rear side peripheral wall portion 12C of the shell 10.

[0163] Even when such a configuration is adopted, the same effects as those described in the above-described first embodiment can be obtained, and the shoes 1A5 can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0164] (Sixth Modification) FIG. 22 is a schematic diagram for explaining the fixing structure of the heel counter to the shell and the upper body in the shoe according to the sixth modification. Hereinafter, with reference to FIG. 22, the fixing structure of the heel counter 50 to the shell 10 and the upper body 20 in the shoe 1A6 according to the sixth modification based on the above-described first embodiment will be described. Note that the shoe 1A6 according to the sixth modification is different only in the configurations of the shell 10 and the upper body 20 when compared with the shoe 1A according to the above-described first embodiment.

[0165] As shown in FIG. 22, in the shoe 1A6 according to the sixth modification, a belt-like tightening portion 16 is provided at the rear end portion in the front-rear direction X and the upper end portion in the vertical direction Z of the shell 10. The shell 10 has the bottom wall portion 11 and the peripheral wall portion 12 described above as the main body portion, and the tightening portion 16 is provided on the main body portion of the shell 10 by being fixed to the rear peripheral wall portion 12C of the peripheral wall portion 12 among these.

[0166] A through-hole-like insertion portion 57 is provided in the third portion 51C of the surrounding portion 51 of the heel counter 50, and a through-hole-like insertion portion 27 is provided in the rear side wall portion 22C of the upper body 20. These insertion portions 57 and 27 both have a slit-like shape extending along the substantially left-right direction Y corresponding to the belt-like tightening portion 16.

[0167] The base end 16a as the fixed end of the tightening portion 16 is fixed to the inner peripheral surface 12a of the rear peripheral wall portion 12C of the shell 10 by, for example, sewing, welding, adhesion, or the like. The tip 16b as the free end of the tightening portion 16 is inserted into the insertion portion 57 provided in the heel counter 50 and the upper body 20, and the tip 16b of the tightening portion 16 in the portion inserted into the insertion portions 57 and 27 and pulled out to the inside of the upper body 20 reaches the base end 16a by being further folded back.

[0168] Here, a male - type hook - and - loop fastener is provided on one of the proximal end 16a and the distal end 16b of the tightening part 16, and a female - type hook - and - loop fastener is provided on the other of the proximal end 16a and the distal end 16b of the tightening part 16. Therefore, the part of the distal end 16b that is inserted into the insertion parts 57, 27 and further folded back to reach above the proximal end 16a is overlapped with the proximal end 16a, and the male - type hook - and - loop fastener and the female - type hook - and - loop fastener engage with each other, thereby being attached to the proximal end 16a.

[0169] As a result, with the tightening part 16 inserted into the insertion parts 57, 27, the heel counter 50 and the upper body 20 are tightened by the tightening part 16, so that the heel counter 50 and the upper body 20 are fixed to the shell 10. In other words, the tightening part 16 is provided on the shell 10, and the heel counter 50 at a portion located above the position where the insertion part 57 is provided in the vertical direction Z and the upper body 20 at a portion located above the position where the insertion part 27 is provided in the vertical direction Z are surrounded and held by the loop - shaped distal end 16b formed by the tightening part 16, so that the shell 10, the upper body 20, and the heel counter 50 are in a state of being integrally fixed to each other.

[0170] Therefore, even when such a configuration is adopted, effects similar to those described in the above - mentioned Embodiment 1 can be obtained, and the shoe 1A6 can stably fix the heel counter 50 to the shell 10 and the upper body 20.

[0171] In the shoe 1A6 according to the above - mentioned sixth modification, the heel counter 50 corresponds to the aforementioned first member, the upper body 20 corresponds to the aforementioned second member, and the shell 10 corresponds to the aforementioned third member. Therefore, the insertion part 57 provided on the heel counter 50 corresponds to the aforementioned first insertion part, and the insertion part 27 provided on the upper body 20 corresponds to the aforementioned second insertion part.

[0172] (Seventh Modification Example) FIG. 23 is a schematic diagram for explaining a fixing structure of a heel counter to a shell and an upper body in a shoe according to a seventh modification. Hereinafter, with reference to FIG. 23, a fixing structure of a heel counter 50 to a shell 10 and an upper body 20 in a shoe 1A7 according to a seventh modification based on the above-described first embodiment will be described. Note that the shoe 1A7 according to the seventh modification is different only in the configuration of the upper body 20 when compared with the shoe 1A6 according to the sixth modification described above.

[0173] As shown in FIG. 23, in the shoe 1A7 according to the seventh modification, a through-hole-shaped portion is not provided in the rear wall portion 22C of the upper body 20 itself, and a sheet member 22c whose both ends are sewn to the outer peripheral surface 22b of the rear wall portion 22C is provided. Thus, a through-hole-shaped insertion portion 27 is formed in a portion between the sheet member 22c and the rear wall portion 22C. And a tightening portion 16 is inserted into the insertion portion 27 formed in a portion between the sheet member 22c and the rear wall portion 22C.

[0174] Even in such a configuration, effects similar to those described in the seventh modification described above can be obtained, and the shoe 1A7 can be configured to stably fix the heel counter 50 to the shell 10 and the upper body 20. Further, since the tightening portion 16 is not pulled out to the inside of the upper body 20, the tightening portion 16 does not contact the wearer's foot during wearing, and a better wearing comfort can be ensured.

[0175] (Eighth Modification) FIG. 24 is a schematic diagram for explaining a fixing structure of a heel counter to a shell and an upper body in a shoe according to an eighth modification. Hereinafter, with reference to FIG. 24, a fixing structure of a heel counter 50 to a shell 10 and an upper body 20 in a shoe 1A8 according to an eighth modification based on the above-described first embodiment will be described. Note that the shoe 1A8 according to the eighth modification is different only in the configuration of the shell 10 when compared with the shoe 1A7 according to the seventh modification described above.

[0176] As shown in FIG. 24, in the shoe 1A8 according to the eighth modification, the tightening portion 16 provided on the shell 10 has a structure integrated with the main body portion of the shell 10 composed of the bottom wall portion 11 and the peripheral wall portion 12. That is, the tightening portion 16 is formed of a single member together with the bottom wall portion 11 and the peripheral wall portion 12. Such a structure can be manufactured relatively easily by shaping using the three-dimensional laminating apparatus described above.

[0177] Here, a through hole 16a1 is provided at the proximal end 16a of the tightening portion 16, and a protruding engaging portion 16b1 is provided at the distal end 16b of the tightening portion 16. These through hole 16a1 and engaging portion 16b1 have a snap fit structure, and by inserting the through hole 16a1 into the engaging portion 16b1, the distal end 16b of the tightening portion 16 is attached to the proximal end 16a.

[0178] Note that the fixing of the proximal end 16a of the tightening portion 16 to the rear peripheral wall portion 12C (that is, the fixing at the portion indicated by reference sign A in the figure) can be realized by various methods such as welding, adhesion, and a fixing structure similar to the snap fit structure by the above-described through hole 16a1 and engaging portion 16b1.

[0179] Even in the case configured in this way, an effect similar to the effect described in the eighth modification above can be obtained, and the shoe 1A8 can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0180] (Ninth Modification) FIG. 25 is a schematic diagram for explaining a fixing structure of a heel counter to a shell and an upper body in a shoe according to a ninth modification. Hereinafter, with reference to FIG. 25, a fixing structure of a heel counter 50 to a shell 10 and an upper body 20 in a shoe 1A9 according to a ninth modification based on the above-described first embodiment will be described. Note that the shoe 1A9 according to the ninth modification is different only in the configurations of the shell 10 and the heel counter 50 when compared with the shoe 1A according to the above-described first embodiment.

[0181] As shown in FIG. 25, in the shoe 1A9 according to the ninth modification, a belt-like tightening portion 56 is provided at a rear end portion in the front-rear direction X of the heel counter 50 and at an upper end portion in the vertical direction Z. The heel counter 50 has the surrounding portion 51 described above as a main body portion, and the tightening portion 56 is provided on the main body portion of the heel counter 50 by being fixed to a third portion 51C of the surrounding portion 51.

[0182] An insertion portion 17 in the form of a through-hole is provided in a rear circumferential wall portion 12C of the shell 10, and an insertion portion 27 in the form of a through-hole is provided in a rear wall portion 22C of the upper body 20. These insertion portions 17 and 27 each have a slit-like shape extending along the substantially left-right direction Y corresponding to the belt-like tightening portion 56.

[0183] A base end 56a as a fixed end of the tightening portion 56 is fixed to the third portion 51C of the surrounding portion 51 of the heel counter 50 by, for example, sewing, welding, adhesion, or the like. Here, the tightening portion 56 is folded at an intermediate position in its longitudinal direction, so that the intermediate position is fixed to the inner peripheral surface and the outer peripheral surface of the third portion, respectively. As a result, the tightening portion 56 has a portion pulled out toward the shell 10 side and a portion pulled out toward the upper body 20 side, and each of these two pulled-out portions has a tip 56b.

[0184] One of the two tips 56b described above as the free end of the tightening portion 56 is inserted into the insertion portion 17 provided in the shell 10, and the tip 56b of the tightening portion 56 of the portion inserted into the insertion portion 17 and drawn out to the outside of the shell 10 reaches the base end 56a by being further folded back. The other of the two tips 56b described above as the free end of the tightening portion 56 is inserted into the insertion portion 27 provided in the upper body 20, and the tip 56b of the tightening portion 56 of the portion inserted into the insertion portion 27 and drawn out to the inside of the upper body 20 reaches the base end 56a by being further folded back.

[0185] Here, a male surface fastener is provided on one of the base end 56a and the tip 56b of the tightening portion 56, and a female surface fastener is provided on the other of the base end 56a and the tip 56b of the tightening portion 56. Therefore, the portion of the tip 56b that is inserted into the insertion portion 17 or the insertion portion 27 and further folded back to reach the base end 56a is overlapped with the base end 56a, and the male surface fastener and the female surface fastener described above are engaged to be attached to the base end 56a.

[0186] As a result, with the tightening portion 56 inserted into the insertion portions 17 and 27, the heel counter 50 and the upper body 20 are tightened by the tightening portion 56, so that the heel counter 50 and the upper body 20 are fixed to the shell 10. In other words, the tightening portion 56 is provided on the heel counter 50, and the shell 10 of the portion located above the insertion portion 17 in the vertical direction Z and the upper body 20 of the portion located above the insertion portion 27 in the vertical direction Z are each surrounded and held by the two loop-shaped tips 16b formed by the tightening portion 16, so that the shell 10, the upper body 20, and the heel counter 50 are integrally fixed to each other.

[0187] Therefore, even when such a configuration is adopted, effects similar to those described in the above-described Embodiment 1 can be obtained, and the shoe 1A9 can be configured such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20. Here, from the viewpoint of ensuring a better wearing comfort, as in the shoe 1A7 according to the above-described seventh modification example, a sheet member 22c (see FIG. 23) is provided on the outer peripheral surface 22b of the rear side wall portion 22C so that the tightening portion 56 is not drawn out to the inside of the upper body 20 and does not contact the wearer's foot, and an insertion portion 27 may be provided between the sheet member 22c and the rear side wall portion 22C.

[0188] In the shoe 1A9 according to the above-described ninth modification example, the shell 10 corresponds to the aforementioned first member, the upper body 20 corresponds to the aforementioned second member, and the heel counter 50 corresponds to the aforementioned third member. Therefore, the insertion portion 17 provided in the shell 10 corresponds to the aforementioned first insertion portion, and the insertion portion 27 provided in the upper body 20 corresponds to the aforementioned second insertion portion.

[0189] (Embodiment 2) FIG. 26 is a schematic diagram for explaining a fixing structure of a heel counter to a shell and an upper body in a shoe according to Embodiment 2. Next, with reference to this FIG. 26, a fixing structure of the heel counter 50 to the shell 10 and the upper body 20 in the shoe 1B according to Embodiment 2 will be described. The shoe 1B according to the present embodiment is different in the configuration of the upper body 20 and further different in that the shoe 1B includes a tightening member 60 when compared with the shoe 1A according to the above-described Embodiment 1.

[0190] As shown in FIG. 26, in addition to the shell 10, the upper body 20, the heel counter 50, etc. described above, the shoe 1B according to the present embodiment includes a fastening member 60. This fastening member 60 has a belt-like shape and is similar in configuration to the above-described fastening portion 26 (see FIGS. 13 to 15, etc.). On the other hand, the fastening member 60 is an independent component that is not fixed to any of the shell 10, the upper body 20, the heel counter 50, etc., and its configuration is different from that of the above-described fastening portion 26.

[0191] A through-hole-shaped insertion portion 27 as a first insertion portion is provided in the rear side wall portion 22C of the upper body 20, and a through-hole-shaped insertion portion 57 as a second insertion portion is provided in a third portion 51C of the surrounding portion 51 of the heel counter 50. Further, a through-hole-shaped insertion portion 17 as a third insertion portion is provided in the rear side peripheral wall portion 12C of the shell 10. These insertion portions 27, 57, 17 all have a slit-like shape extending along the substantially left-right direction Y corresponding to the belt-like fastening member 60.

[0192] The insertion portion 27 provided in the upper body 20, the insertion portion 57 provided in the heel counter 50, and the insertion portion 17 provided in the shell 10 are provided at substantially the same positions in the vertical direction Z and the left-right direction Y. Thereby, these insertion portions 27, 57, 17 face each other in the front-rear direction X.

[0193] The fastening member 60 and the insertion portions 27, 57, 17 function as fixing portions for fixing the shell 10, the upper body 20, and the heel counter 50 to each other. That is, the fastening member 60 is configured to be capable of being fastened with an axis extending in the left-right direction Y as a fastening center while being inserted into the insertion portions 27, 57, 17. Therefore, when the fastening member 60 is tightened so as to form a loop state while being inserted into the insertion portions 27, 57, 17, the upper body 20, the heel counter 50, and the shell 10 are fixed to each other in a state of being tightened by the fastening member 60.

[0194] Here, a male - type hook - and - loop fastener is provided on one of the one end 60a and the other end 60b of the fastening member 60, and a female - type hook - and - loop fastener is provided on the other of the one end 60a and the other end 60b of the fastening member 60. Therefore, when these one end 60a and the other end 60b are overlapped, the male - type hook - and - loop fastener and the female - type hook - and - loop fastener described above are engaged, so that the mutual fixation of the upper body 20, the heel counter 50, and the shell 10 by the fastening member 60 can be realized.

[0195] Therefore, even when such a configuration is adopted, effects similar to those described in the above - mentioned Embodiment 1 can be obtained, and the shoe 1B can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20. From the viewpoint of ensuring a better wearing comfort, as in the shoe 1A7 according to the seventh modification based on the above - mentioned Embodiment 1, a sheet member 22c (see FIG. 23) is provided on the outer peripheral surface 22b of the rear - side wall portion 22C so that the fastening member 60 is not pulled out to the inside of the upper body 20 and does not contact the wearer's foot, and an insertion portion 27 may be provided between the sheet member 22c and the rear - side wall portion 22C.

[0196] (Embodiment 3) FIG. 27 is a perspective view of the heel counter of the shoe according to Embodiment 3, and FIG. 28 is a cross - sectional view of the shoe according to the third embodiment. Next, with reference to FIGS. 27 and 28, the shoe 1C according to Embodiment 3 will be described. The shoe 1C according to the present embodiment is different only in the configuration of the heel counter 50 when compared with the shoe 1A according to the above - mentioned Embodiment 1.

[0197] As shown in FIGS. 27 and 28, in the shoe 1C according to the present embodiment, in addition to the surrounding portion 51 and the protruding portion 52 described above, the heel counter 50 has a bottom portion 53. The bottom portion 53 extends inward from the lower end of the flare - shaped protruding portion 52 so as to cover a portion corresponding to the heel portion of the sole of the wearer's foot.

[0198] By providing the bottom portion 53 on the heel counter 50 in this manner, the heel counter 50 becomes less likely to deform particularly in the left - right direction Y compared to the case where the bottom portion 53 is not provided, and thus the rigidity of the heel counter 50 is significantly improved. Therefore, compared to a shoe equipped with a heel counter 50 without the bottom portion 53, the rigidity of the entire rearfoot portion R3 of the shoe 1A is improved, and it becomes possible to suppress the wearer's foot from tilting to the left and right during landing, and a shoe 1C with even better landing stability can be obtained. Also, since the heel counter 50 is less likely to deform, the sole body 30 and the heel counter can be more firmly fixed by the pressing surface 14, and these displacements can be more effectively prevented.

[0199] Here, since the shoe 1C according to the present embodiment has the same fixing structure for the heel counter 50 as the structure described in the above - mentioned Embodiment 1, the heel counter 50 can be firmly fixed to the shell 10 and the upper body 20 at the upper end portion and the lower end portion on the rear - end side of the shoe 1A. In this regard, similar to the case of the shoe 1A according to the above - mentioned Embodiment 1, a shoe 1C capable of stably fixing the heel counter 50 to the shell 10 and the upper body 20 can be obtained.

[0200] (Tenth Modification Example) FIG. 29 is a perspective view of the heel counter of a shoe according to the tenth modification example. Hereinafter, with reference to this FIG. 29, a shoe 1C1 according to the tenth modification example based on the above - mentioned Embodiment 3 will be described. Note that the shoe 1C1 according to the tenth modification example is different only in the configuration of the heel counter 50 when compared with the shoe 1C according to the above - mentioned Embodiment 3.

[0201] As shown in FIG. 29, in the shoe 1C1 according to the tenth modification example, the heel counter 50 has a bottom portion 53 provided with an opening 53a at its central portion. This opening 53a is provided at a position corresponding to the heel center HC (see FIG. 3 etc.) of the shoe 1A.

[0202] By providing the opening 53a at the bottom 53 of the heel counter 50 in this way, since there is no rigid member located directly under the heel of the wearer's foot except for the plate 32, the shoe 1C1 with excellent cushioning can be obtained. Further, by providing a similar opening in the plate 32, or by arranging the plate 32 only in the forefoot part R1 or the midfoot part R2 and not locating it in the rearfoot part R3, or by configuring not to provide the plate 32 itself, the effect of providing the opening 53a in the bottom 53 described above is enhanced, and a shoe with further excellent cushioning can also be obtained.

[0203] Therefore, in addition to the effects described in the above-described Embodiment 3, the shoe 1C1 can be made to achieve both stability and cushioning at the time of landing.

[0204] (Embodiment 4) FIG. 30 is a side view of the heel counter of the shoe according to Embodiment 4 as viewed from the outer foot side, and FIG. 31 is a side view of the shoe according to Embodiment 4 as viewed from the outer foot side. Next, with reference to FIGS. 30 and 31, the shoe 1D according to Embodiment 4 will be described. Note that the shoe 1D according to the present embodiment is different only in the configurations of the heel counter 50 and the shell 10 when compared with the shoe 1A according to the above-described Embodiment 1.

[0205] As shown in FIGS. 30 and 31, in the shoe 1D according to the present embodiment, the heel counter 50 has a winding part 58 in addition to the surrounding part 51 and the protruding part 52 described above. The winding part 58 has an inner foot side winding member 58A with one end connected to the first part 51A of the surrounding part 51 and an outer foot side winding member 58B with one end connected to the second part 51B of the surrounding part 51. These inner foot side winding member 58A and outer foot side winding member 58B each have a belt-like shape.

[0206] One end of the inner-foot-side winding member 58A connected to the first part 51A of the surrounding part 51 is drawn out obliquely upward in the front direction, and one of a male surface fastener and a female surface fastener is provided at the other end, which is the tip thereof. On the other hand, one end of the outer-foot-side winding member 58B connected to the second part 51B of the surrounding part 51 is drawn out obliquely upward in the front direction, and the other of the male surface fastener and the female surface fastener is provided at the other end, which is the tip thereof.

[0207] Also, a through-hole-shaped insertion part 18 as a fourth insertion part (not shown in FIG. 31) is provided at a predetermined position of the inner-foot-side peripheral wall part 12A of the shell 10. Similarly, a through-hole-shaped insertion part 18 as a fifth insertion part is provided at a predetermined position of the outer-foot-side peripheral wall part 12B of the shell 10. Then, the above-described inner-foot-side winding member 58A and outer-foot-side winding member 58B are inserted in association with each of these insertion parts 18, whereby the tips of the inner-foot-side winding member 58A and the outer-foot-side winding member 58B are drawn out to the outside of the shell 10.

[0208] The tips of the inner-foot-side winding member 58A and the outer-foot-side winding member 58B drawn out through the insertion part 18 are wound along the outer surface (that is, the outer peripheral surface 12b of the peripheral wall part 12) of the part covering the toenail of the foot of the wearer of the shell 10, and the above-described male surface fastener and female surface fastener are engaged by overlapping these tips, whereby the inner-foot-side winding member 58A and the outer-foot-side winding member 58B are attached.

[0209] Thereby, the heel counter 50 is also fixed to the shell 10 by the inner-foot-side winding member 58A and the outer-foot-side winding member 58B. Therefore, it becomes possible to fix the heel counter 50 also in the middle-foot part R2 of the shoe 1A on the side where the front end part of the heel counter 50 is located, and it becomes possible to prevent the heel counter 50 from being displaced at this part.

[0210] Therefore, by adopting the above configuration, similar to the case of the first embodiment described above, not only can the heel counter 50 be stably fixed to the shell 10 and the upper body 20 at the upper end and the lower end on the rear end side of the shoe 1A, but also the heel counter 50 can be stably fixed at the midfoot part R2 of the shoe 1A on the side where the front end part of the heel counter 50 is located. As a result, it is possible to obtain a shoe 1D with significantly improved fitness for the wearer's foot and stability during landing.

[0211] In this embodiment, the case where the winding part 58 is composed of two members, an inner foot side winding member 58A and an outer foot side winding member 58B, is illustrated. However, it is of course possible to configure this with a single member.

[0212] (Embodiment 5) FIG. 32 is an enlarged cross-sectional view of a main part of a shoe according to Embodiment 5. Next, with reference to FIG. 32, the shoe 1E according to Embodiment 5 will be described. The shoe 1E according to this embodiment is different only in the configurations of the heel counter 50 and the shell 10 as compared with the shoe 1A according to the first embodiment described above.

[0213] As shown in FIG. 32, in the shoe 1E according to this embodiment, a protrusion 52a having a wedge-shaped cross-sectional shape is provided on the protruding portion 52 of the heel counter 50. The protrusion 52a extends along the circumferential direction of the heel counter 50 and protrudes toward the peripheral wall portion 12 side of the shell 10. On the other hand, a groove portion 15 having a shape corresponding to the protrusion 52a with a wedge-shaped cross-sectional shape is provided on the pressing surface 14 of the shell 10. Similar to the protrusion 52a, this groove portion 15 also extends along the circumferential direction of the peripheral wall portion 12 of the shell 10.

[0214] As a result, the protrusion 52a provided on the heel counter 50 fits into the groove 15 provided on the shell 10. Therefore, when configured in this way, the tip of the protrusion 52a with a wedge-shaped cross-sectional shape serves as a so-called return, and the heel counter 50 will not easily fall off from the shell 10. Therefore, by configuring in this way, the heel counter 50 can be fixed more stably to the shell 10 and the upper body 20 at the lower end part on the rear end side of the shoe 1E.

[0215] Here, since the shoe 1E according to the present embodiment has the same fixing structure of the heel counter 50 as the structure described in the above-described Embodiment 1, the heel counter 50 can be firmly fixed to the shell 10 and the upper body 20 at the upper end part and the lower end part on the rear end side of the shoe 1E. In this regard, similar to the case of the shoe 1A according to the above-described Embodiment 1, the shoe 1E can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0216] (Embodiment 6) FIG. 33 is an enlarged cross-sectional view of the main part of the shoe according to Embodiment 6. Next, the shoe 1F according to Embodiment 6 will be described with reference to this FIG. 33. The shoe 1F according to the present embodiment is different in the configurations of the heel counter 50, the shell 10, and the upper body 20 when compared with the shoe 1A according to the above-described Embodiment 1, and is further different in that the shoe 1F is provided with a fixture 59.

[0217] As shown in FIG. 33, in the shoe 1E according to the present embodiment, a hole is provided in the protruding portion 52 of the heel counter 50, and a hole is also provided in the upper body 20 at a portion facing the protruding portion 52. Further, holes are provided in the peripheral wall portion 12 of the shell 10 at a portion facing the holes provided in the protruding portion 52 and the upper body 20 so as to reach the inner peripheral surface 12a and the outer peripheral surface 12b, and the fixture 59 is attached so as to be inserted through these holes.

[0218] This fixture 59 fixes the heel counter 50 to the shell 10 and the upper body 20. For example, by adopting a snap fit structure, it is configured to be attachable to the shell 10, the heel counter 50, and the upper body 20. Note that the fixture 59 and the above-described hole portions are provided at a plurality of points in the rear foot portion R3 along the circumferential direction of the peripheral wall portion 12 of the shell 10.

[0219] Therefore, by configuring in this way, the heel counter 50 can be fixed to the shell 10 and the upper body 20 more stably at the lower end portion on the rear end side of the shoe 1F. Also, if the fixture 59 is completely inserted into the hole portion provided in the shell 10, the aesthetic appearance will not be impaired.

[0220] Here, since the shoe 1F according to the present embodiment has the same fixing structure for the heel counter 50 as the structure described in the above-described Embodiment 1, the heel counter 50 can be firmly fixed to the shell 10 and the upper body 20 at the upper end portion and the lower end portion on the rear end side of the shoe 1F. In this regard, similar to the case of the shoe 1A according to the above-described Embodiment 1, the shoe 1F can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0221] (Embodiment 7) FIG. 34 is a cross-sectional view for explaining the fixing structure of the heel counter to the shell and the upper body in the shoe according to Embodiment 7. FIG. 35 is an exploded perspective view for explaining the fixing structure shown in FIG. 34, and FIG. 36 is a schematic diagram for explaining the outline of the fixing structure shown in FIG. 34. Hereinafter, with reference to FIGS. 34 to 36, the fixing structure of the heel counter 50 to the shell 10 and the upper body 20 in the shoe 1G according to the present embodiment will be described in detail.

[0222] In the above-described Embodiment 1 and the first to ninth modification examples based on Embodiment 1, examples were given and described in cases where the tip of the tightening portion was fixed to a member provided with the tightening portion or a member other than the member provided with the tightening portion by using engagement by fixing members such as suturing, welding, adhesion, surface fasteners, etc. However, the tip of the tightening portion does not necessarily have to be fixed based on these fixing methods, and it may be fixed simply by clamping by friction. This embodiment exemplifies the case where it is configured in such a manner. In the following, the description of the same parts as those in the above-described Embodiment 1 will not be repeated.

[0223] As shown in FIGS. 34 to 36, one end in the extending direction of the tightening portion 26 is fixed to the rear side wall portion 22C of the upper body 20. The fixing of the tightening portion 26 to the rear side wall portion 22C may be performed by any method, but preferably, suturing can be used. The portion of the tightening portion 26 fixed to the upper body 20 constitutes the proximal end 26a of the tightening portion 26 as the fixed end. On the other hand, the other end in the extending direction of the tightening portion 26 is drawn out from the rear side wall portion 22C by a predetermined length, and the portion farthest from the proximal end 26a among these constitutes the tip 26b of the tightening portion 26 as the free end.

[0224] On the other hand, the heel counter 50 and the shell 10 are each provided with slit-shaped insertion portions 57 and 17, respectively, in the same manner as in the case of Embodiment 1 described above. The insertion portion 57 provided in the heel counter 50 and the insertion portion 17 provided in the shell 10 are provided at substantially the same positions in the vertical direction Z and the horizontal direction Y.

[0225] The tightening portion 26 described above is inserted into these insertion portions 57 and 17. Specifically, the leading end 26b of the tightening portion 26 is sequentially inserted into the insertion portion 17 from the outside of the shell 10, further inserted into the insertion portion 57 from the outside of the heel counter 50, and then inserted again into the insertion portion 17 from the inside of the shell 10 so as to go around the upper end of the heel counter 50, and is then crawled along the outer peripheral surface 12b of the shell 10 toward the upper end side and thus is inserted into the insertion portions 57 and 17.

[0226] By crawling the tightening portion 26 in this way, the tightening portion 26 will include many portions where its surfaces contact each other facing each other. As a result, even when an external force is applied to the tightening portion 26, a large frictional force is generated at the said portion of the tightening portion 26, and the tightening portion 26 will not move easily. Therefore, it is possible to prevent the tightening portion 26 from detaching from the insertion portions 57 and 17.

[0227] Therefore, even when such a configuration is adopted, effects similar to those described in the above-described Embodiment 1 can be obtained, and the shoe 1G can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0228] Here, when the above configuration is adopted, the leading end 26b of the tightening portion 26 will be sandwiched between the portion of the tightening portion 26 excluding the said leading end 26b and the shell 10, and the leading end 26b of the tightening portion 26 will also be clamped by this sandwiching. Note that the state of this sandwiching is schematically represented by arrows in FIG. 36.

[0229] Therefore, by adopting the configuration as in this embodiment, fixing of the leading end 26b using engagement by fixing members such as stitching, welding, adhesion, surface fasteners, etc. becomes unnecessary, and it becomes possible to fix the shell 10, the upper body 20, and the heel counter 50 to each other with a simpler configuration. Therefore, by adopting the said configuration, it becomes possible to reduce the manufacturing cost.

[0230] Further, when the above configuration is adopted, the tightening portion 26 includes a rewound portion 28 that is rewound in a loop state while being inserted into an insertion portion 57 provided in the heel counter 50. A portion of the tightening portion 26 on the tip 26b side of the rewound portion 28 and a portion of the tightening portion 26 on the base end 26a side of the rewound portion 28 are both inserted into an insertion portion 17 provided in the shell 10.

[0231] Therefore, by adopting the configuration as in the present embodiment, the heel counter 50 is tightened by the rewound portion 28, and the shell 10 functions as a so-called stopper so that the tightening of the heel counter 50 by the rewound portion 28 is not released. Thus, the heel counter 50 and the shell 10 are firmly fixed by the tightening portion 26. Therefore, by configuring in this way, it becomes possible to fix the heel counter 50 more stably with respect to the shell 10 and the upper body 20.

[0232] (11th Modification Example) FIG. 37 is a schematic diagram for explaining a fixing structure of a heel counter to a shell and an upper body in a shoe according to the 11th modification example. Hereinafter, with reference to FIG. 37, a fixing structure of the heel counter 50 to the shell 10 and the upper body 20 in the shoe 1G1 according to the 11th modification example based on the above-described Embodiment 7 will be described. Note that the shoe 1G1 according to the 11th modification example is different only in the configuration of the heel counter 50 as compared with the shoe 1G according to the above-described Embodiment 7.

[0233] As shown in FIG. 37, in the shoe 1G1 according to the 11th modification example, the insertion portion 57 provided in the heel counter 50 is provided at a position lower than the insertion portion 17 provided in the shell 10. That is, the insertion portion 57 is located on the lower side in the vertical direction Z than the insertion portion 17.

[0234] When configured in this way, when the tightening part 26 is tightened, due to the height difference between the insertion part 57 and the insertion part 17, the heel counter 50 is fixed in a state of being pushed upward in the upper direction Z relative to the shell 10. Therefore, combined with the fixing of the lower end side of the heel counter 50 by the protruding part 52 described above, it becomes possible to fix the heel counter 50 in a state of being pulled along the vertical direction Z, and in this regard, it can be fixed more firmly to the shell 10.

[0235] In addition, when configured in this way, in the state where the tightening part 26 is tightened, it becomes possible to increase the area of the portion of the tightening part 26 sandwiched between the shell 10 and the heel counter 50. Moreover, since the tightening part 26 is tightened in a more bent state, an increase in friction generated between the tightening part 26, the shell 10, and the heel counter 50 can be achieved. As a result, it is possible to more reliably prevent the tightening part 26 from detaching from the insertion parts 57 and 17.

[0236] Therefore, even when the configuration as in the 11th modified example is adopted, the same effects as those described in the above-described Embodiment 1 can be obtained, and the shoe 1G1 can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0237] (12th Modified Example) FIG. 38 is a schematic diagram for explaining the fixing structure of the heel counter to the shell and the upper body in the shoe according to the 12th modified example. Hereinafter, with reference to this FIG. 38, the fixing structure of the heel counter 50 to the shell 10 and the upper body 20 in the shoe 1G2 according to the 12th modified example based on the above-described Embodiment 7 will be described. Note that the shoe 1G2 according to the 12th modified example is different only in the configuration of the heel counter 50 when compared with the shoe 1G according to the above-described Embodiment 7.

[0238] As shown in FIG. 39, in the shoe 1G2 according to the twelfth modification, the insertion portion 57 provided in the heel counter 50 is provided at a position higher than the insertion portion 17 provided in the shell 10. That is, the insertion portion 57 is located on the upper side in the vertical direction Z with respect to the insertion portion 17.

[0239] When configured in this way, the tightening portion 26 is tightened in a more bent state, and moreover, in the state where the tightening portion 26 is tightened, the area of the portion where the surfaces of the tightening portions 26 face each other and come into contact with each other can be increased. Therefore, an increase in friction generated between the tightening portions 26, between the tightening portion 26 and the shell 10, and between the tightening portion 26 and the heel counter 50 can be achieved. As a result, it becomes possible to more reliably prevent the tightening portion 26 from detaching from the insertion portions 57 and 17.

[0240] Therefore, even when the configuration as in the twelfth modification is adopted, the same effects as those described in the first embodiment can be obtained, and the shoe 1G2 can be made such that the heel counter 50 can be stably fixed to the shell 10 and the upper body 20.

[0241] (Summary of the disclosure content in the embodiments and modifications) Summarizing the characteristic configurations disclosed in the above-described embodiments and modifications, it is as follows.

[0242] [Appendix 1] A shoe having an insertion space into which the wearer's foot is inserted, A flexible shell including a bottom wall portion having a ground contact surface and a peripheral wall portion erected from the periphery of the bottom wall portion, A bag-shaped upper body that is accommodated in the shell and provided with an opening into which the wearer's foot can be inserted, A heel counter that is harder than the shell and the upper body, and is configured to be able to cover at least the peripheral surface of the heel portion of the wearer's foot by being accommodated in the shell and disposed outside the upper body. When one of the above shell, the above upper body, and the above heel counter is used as the first member, another one of the above shell, the above upper body, and the above heel counter is used as the second member, and the remaining one of the above shell, the above upper body, and the above heel counter is used as the third member, The first member is provided with a through-hole-shaped first insertion portion, The second member is provided with a through-hole-shaped second insertion portion, The third member has a main body portion and a belt-shaped tightening portion provided so as to be drawn out from the main body portion, With the tightening portion inserted into the first insertion portion and the second insertion portion, the first member and the second member are tightened by the tightening portion, so that the first member and the second member can be fixed to the third member. A shoe.

[0243] By adopting the configuration described in the above supplementary note 1, the shell, the upper body, and the heel counter are fixed to each other by the tightening portion. Therefore, the heel counter can be stably fixed to the shell and the upper body without using an adhesive or while reducing the amount of adhesive used.

[0244] [Supplementary Note 2] The shoe according to supplementary note 1, wherein a portion on the tip side of the tightening portion can be fixed to the third member.

[0245] By adopting the configuration described in the above supplementary note 2, the first member and the second member are surely tightened by the tightening portion. Therefore, the heel counter can be stably fixed to the shell and the upper body.

[0246] [Supplementary Note 3] The shoe according to supplementary note 2, wherein a portion on the tip side of the tightening portion can be fixed to a portion on the base end side of the tightening portion or the main body portion.

[0247] By adopting the configuration described in the above-mentioned supplementary note 3, the first member and the second member can be surely tightened by the tightening portion, so that the heel counter can be stably fixed to the shell and the upper body.

[0248] [Supplementary Note 4] The shoe according to Supplementary Note 1, wherein a portion on the tip side of the tightening portion can be fixed to the first member or the second member.

[0249] By adopting the configuration described in the above-mentioned supplementary note 4, the first member and the second member can be surely tightened by the tightening portion, so that the heel counter can be stably fixed to the shell and the upper body.

[0250] [Supplementary Note 5] The shoe according to any one of Supplementary Notes 1 to 4, wherein the first insertion portion and the second insertion portion are positioned to face each other.

[0251] By adopting the configuration described in the above-mentioned supplementary note 5, displacement between the first member and the second member is prevented, so that the heel counter can be more stably fixed to the shell and the upper body.

[0252] [Supplementary Note 6] The shoe according to any one of Supplementary Notes 1 to 5, wherein a portion on the base end side of the tightening portion is provided at a position higher than either the first insertion portion or the second insertion portion.

[0253] By adopting the configuration described in the above-mentioned supplementary note 6, it is possible to avoid the base end of the tightening portion from contacting the wearer's foot during wearing, so that a comfortable wearing feeling can be achieved.

[0254] [Supplementary Note 7] The tightening portion is provided at the rear end portion of the shoe, both the first insertion portion and the second insertion portion have a slit shape extending in the left-right direction, which is a direction matching the foot width direction of the wearer's foot, The shoe according to any one of Appendices 1 to 6, wherein the fastening portion is configured to be fastened around an axis extending in the left - right direction as a fastening center.

[0255] By adopting the configuration described in the above - mentioned Appendix 7, the shell, the upper body, and the heel counter can be mutually fixed at the rear end portion of the shoe, so that the heel counter can be more stably fixed to the shell and the upper body.

[0256] [Appendix 8] The shoe according to any one of Appendices 1 to 7, wherein in a state where the fastening portion is tightened, a portion on the tip - side of the fastening portion is sandwiched and held between a portion of the fastening portion excluding the portion on the tip - side of the fastening portion and either one of the first member and the second member.

[0257] By adopting the configuration described in the above - mentioned Appendix 8, it becomes possible to fix the portion on the tip - side of the fastening portion only by simple sandwiching, so that it is not necessary to separately fix the portion by using engagement with fixing members such as sewing, welding, adhesion, surface fasteners, etc., and it becomes possible to reduce the manufacturing cost. [Appendix 9] The fastening portion includes a rewound portion that is rewound in a loop state after being inserted into one of the first insertion portion and the second insertion portion, A portion on the tip - side of the fastening portion and a portion on the base - side of the fastening portion, both of which are inserted into the insertion portion different from the one insertion portion among the first insertion portion and the second insertion portion, of the shoe according to any one of Appendices 1 to 8.

[0258] By adopting the configuration described in the above - mentioned Appendix 9, in a state where the fastening portion is tightened, the first member and the second member are firmly fixed, so that the heel counter can be stably fixed to the shell and the upper body.

[0259] [Appendix 10] The first member is the heel counter, the second member is the shell, the third member is the upper body, and the shoe according to any one of Appendices 1 to 9.

[0260] By adopting the configuration described in Appendix 10, the heel counter and the shell can be surely tightened by the tightening portion provided on the upper body, so that the heel counter can be stably fixed to the shell and the upper body.

[0261] [Appendix 11] The first insertion portion provided on the heel counter is provided at a position higher than the second insertion portion provided on the shell, and the shoe according to Appendix 10.

[0262] By adopting the configuration described in Appendix 11, due to the height difference between the first insertion portion provided on the heel counter and the second insertion portion provided on the shell, the heel counter will be fixed in a state of being pushed downward, so that the heel counter can be more stably fixed to the shell and the upper body.

[0263] [Appendix 12] The first member is the heel counter, the second member is the upper body, the third member is the shell, and the shoe according to any one of Appendices 1 to 9.

[0264] By adopting the configuration described in Appendix 12, the heel counter and the upper body can be surely tightened by the tightening portion provided on the shell, so that the heel counter can be stably fixed to the shell and the upper body.

[0265] [Appendix 13] The first member is the shell, the second member is the upper body, The shoe according to any one of Appendices 1 to 9, wherein the third member is the heel counter.

[0266] By adopting the configuration described in Appendix 13 above, the shell and the upper body can be surely tightened by the tightening portion provided on the heel counter, so that the heel counter can be stably fixed to the shell and the upper body.

[0267] [Appendix 14] A shoe having an insertion space into which the wearer's foot is inserted, a flexible shell including a bottom wall portion having a ground contact surface and a peripheral wall portion erected from the periphery of the bottom wall portion, a bag-shaped upper body that is accommodated in the shell and is provided with an opening into which the wearer's foot can be inserted, a heel counter that is harder than the shell and the upper body and is configured to cover the peripheral surface of the heel portion of the wearer's foot by being accommodated in the shell and disposed outside the upper body, a fixing portion for fixing the shell, the upper body, and the heel counter to each other, The fixing portion is constituted by a belt-shaped tightening member, a through-hole-shaped first insertion portion provided on the upper body, a through-hole-shaped second insertion portion provided on the heel counter, and a through-hole-shaped third insertion portion provided on the shell, The shoe, wherein the tightening member is tightened so as to form a loop state while being inserted through the first insertion portion, the second insertion portion, and the third insertion portion, so that the upper body, the heel counter, and the shell can be fixed to each other in a state of being tightened by the tightening member.

[0268] By adopting the configuration described in the above-mentioned supplementary note 14, the shell, the upper body, and the heel counter are mutually fixed by the fastening member. Therefore, it becomes possible to stably fix the heel counter to the shell and the upper body without using an adhesive or while reducing the amount of adhesive used.

[0269] [Supplementary Note 15] The shoe according to supplementary note 14, wherein the first insertion portion, the second insertion portion, and the third insertion portion are positioned so as to face each other.

[0270] By adopting the configuration described in the above-mentioned supplementary note 15, displacement of the first member, the second member, and the third member is prevented, so that it becomes possible to more stably fix the heel counter to the shell and the upper body.

[0271] [Supplementary Note 16] The fastening member is attached to the rear end portion of the shoe. The first insertion portion, the second insertion portion, and the third insertion portion all have a slit shape extending in the left-right direction, which is a direction matching the foot width direction of the wearer's foot. The shoe according to supplementary note 14 or 15, wherein the fastening member is configured to be fastenable around an axis extending in the left-right direction as a fastening center.

[0272] By adopting the configuration described in the above-mentioned supplementary note 16, the shell, the upper body, and the heel counter are mutually fixed at the rear end portion of the shoe. Therefore, it becomes possible to more stably fix the heel counter to the shell and the upper body.

[0273] [Supplementary Note 17] The heel counter has a surrounding portion that covers the circumferential surface of the heel portion of the wearer's foot, and a protruding portion that extends from the lower end of the surrounding portion toward the bottom wall portion side and protrudes toward the peripheral wall portion side. On the inner peripheral surface of the peripheral wall portion, a pressing surface is provided that protrudes toward the inside of the shell and faces the bottom wall portion side. By the protruding portion being at least positioned between the pressing surface and the bottom wall portion, the upper body of the portion facing the protruding portion is sandwiched between the pressing surface and the bottom wall portion, so that the heel counter is fixed to the shell, the shoe according to any one of Appendices 1 to 16.

[0274] By adopting the configuration described in Appendix 17 above, not only the fixing by the tightening portion or the tightening member, but also the heel counter is further sandwiched and fixed by the bottom wall portion of the shell and the pressing surface provided on the peripheral wall portion of the shell. Therefore, the heel counter can be fixed to the shell and the upper body more stably.

[0275] [Appendix 18] The protruding portion has a flare shape, The shoe according to Appendix 17, wherein the heel counter further has a bottom portion extending from the lower end of the protruding portion toward the inside of the shell.

[0276] By adopting the configuration described in Appendix 18 above, the flare-shaped protruding portion of the heel counter can be stably fixed by the pressing surface and the bottom wall portion. Therefore, the heel counter can be fixed to the shell and the upper body more stably.

[0277] [Appendix 19] The peripheral wall portion has an inner foot side peripheral wall portion configured to cover a portion of the wearer's foot on the inner foot side and an outer foot side peripheral wall portion configured to cover a portion of the wearer's foot on the outer foot side, The heel counter has a surrounding portion that covers the peripheral surface of the wearer's heel, and a belt-shaped winding portion having one end connected to a first portion that covers the inner foot side peripheral surface of the wearer's heel among the surrounding portions and the other end connected to a second portion that covers the outer foot side peripheral surface of the wearer's heel among the surrounding portions. A through-hole-shaped fourth insertion portion is provided in the inner foot side peripheral wall portion, A through-hole-shaped fifth insertion portion is provided in the outer foot side peripheral wall portion, By being wound around the outer surface of the portion covering the toenail of the wearer's foot of the shell by being inserted into the fourth insertion portion and the fifth insertion portion, the heel counter can be fixed to the shell. The shoe according to any one of Appendices 1 to 18.

[0278] By adopting the configuration described in the above-mentioned Appendix 19, not only the fixing by the tightening portion or the tightening member, but also the heel counter is fixed by the winding portion, so that the heel counter can be more stably fixed to the shell and the upper body.

[0279] [Appendix 20] The winding portion is composed of two members, an inner foot side winding member having one end connected to the first portion and an outer foot side winding member having one end connected to the second portion. The shoe according to Appendix 19, wherein the other end of the inner foot side winding member and the other end of the outer foot side winding member are fixed, so that the heel counter can be fixed to the shell.

[0280] By adopting the configuration described in the above-mentioned Appendix 20, the fixing of the heel counter by the winding portion can be performed more easily.

[0281] (Other forms, etc.) In the above-described embodiments and modifications, the case where the heel counter is fixed to the shell and the upper body by a tightening portion or a tightening member at the upper end portion on the rear end side of the shoe has been illustrated and described. However, it is not necessarily required to fix the heel counter to the shell and the upper body at that position. It may be configured to fix the heel counter to the shell and the upper body by a tightening portion or a tightening member at a position adjacent to that position (that is, a position near the rear end on the inner foot side of the shoe or a position near the rear end on the outer foot side, etc.).

[0282] In addition, the configuration of the members accommodated inside the shell shown in the above-described embodiments and modifications is merely illustrative, and various changes are possible. That is, for any shoe as long as it has a configuration in which an upper body is accommodated in a flexible shell, and a heel counter is further accommodated in the shell and disposed outside the upper body, the effective application of the present disclosure is possible.

[0283] In addition, in the above-described embodiments and modifications, the case where a pressing surface is provided on the peripheral wall portion of the flexible shell by providing a constricted portion on the peripheral wall portion of the flexible shell was illustrated. However, it is not always necessary to provide a pressing surface on the peripheral wall portion, and even when providing a pressing surface, it is arbitrary how to form the peripheral wall portion of the flexible shell to provide the pressing surface.

[0284] In addition, in the above-described embodiments and their modifications, the description was made on the premise that the shoes are used without wearing an insole. Naturally, these shoes may be used with an insole worn. In that case, the above-described belt-like portion and sole body will be covered by the insole. When the shoes are provided with an insole in this way, the shoes can be made to have a better foot feel.

[0285] In addition, the characteristic configurations shown in the above-described embodiments and modifications can be combined with each other as long as they do not deviate from the gist of the present disclosure.

[0286] Thus, the above-described embodiments and their modifications disclosed this time are illustrative in all respects and are not restrictive. The technical scope of the present invention is defined by the scope of the claims and includes all changes within the meaning and scope equivalent to the description of the scope of the claims.

Explanation of Reference Numerals

[0287] 1A to 1G, 1A1 to 1A9, 1C1, 1G1, 1G2 boots, 2 shoe openings, 3 ground contact surface, 10, 10A shells, 10a mouth part, 10b mesh structure part, 10c hole part, 11 bottom wall part, 11a inner surface, 11b outer surface, 12 peripheral wall part, 12A inner foot side peripheral wall part, 12B outer foot side peripheral wall part, 12C rear side peripheral wall part, 12D front side peripheral wall part, 12a inner peripheral surface, 12b outer peripheral surface, 13A constricted part, 14 pressing surface, 14A inner foot side pressing surface, 14B outer foot side pressing surface, 14C rear side pressing surface, 15 groove part, 16 tightening part, 16a base end, 16a1 through hole, 16b tip end, 16b1 engaging part, 17, 18 insertion part, 20 upper body, 20a opening, 21 lower wall part, 21a inner surface, 21b outer surface, 22 side wall part, 22A inner foot side wall part, 22B outer foot side wall part, 22C rear side wall part, 22D front side wall part, 22a inner peripheral surface, 22b outer peripheral surface, 22c sheet member, 23 belt-like part, 26 tightening part, 26a base end, 26b tip end, 27 insertion part, 28 rewinding part, 30 sole body, 31 midsole, 31a top surface, 31b bottom surface, 32 plate, 32a first main surface, 32b second main surface, 32c peripheral end surface, 40 additional sole body, 50 heel counter, 51 surrounding part, 51A first part, 51B second part, 51C third part, 52 protruding part, 52a protruding portion, 53 bottom part, 53a opening, 56 tightening part, 56a base end, 56b tip end, 57 insertion part, 58 winding part, 58A inner foot side winding member, 58B outer foot side winding member, 59 fixture, 60 tightening member, 60a one end, 60b the other end, P1 first boundary surface, P2 second boundary surface, PF front side end position, PR rear side end position, R1 forefoot part, R2 midfoot part, R3 rearfoot part, SC shoe center, SP1 lower side space, SP2 upper side space, SP3 insertion space.

Claims

1. A shoe having an insertion space inside which the foot of the wearer is inserted, a flexible shell including a bottom wall portion having a ground contact surface and a peripheral wall portion standing up from the periphery of the bottom wall portion, a bag-shaped upper body housed in the shell and provided with an opening through which the foot of the wearer can be inserted, a heel counter that is harder than the shell and the upper body, is housed in the shell, and is configured to be able to cover at least the peripheral surface of the heel portion of the wearer's foot by being disposed outside the upper body, When one of the shell, the upper body, and the heel counter is a first member, another one of the shell, the upper body, and the heel counter is a second member, and the remaining one of the shell, the upper body, and the heel counter is a third member, a through-hole-shaped first insertion portion is provided in the first member, a through-hole-shaped second insertion portion is provided in the second member, the third member has a main body portion and a belt-shaped tightening portion provided so as to be drawn out from the main body portion, A shoe in which the first member and the second member can be fixed to the third member by tightening the first member and the second member by the tightening portion with the tightening portion inserted through the first insertion portion and the second insertion portion.

2. The shoe according to claim 1, wherein a portion on the tip side of the tightening portion can be fixed to the third member.

3. The shoe according to claim 2, wherein a portion on the tip side of the tightening portion can be fixed to a portion on the base end side of the tightening portion or the main body portion.

4. The shoe according to claim 1, wherein a portion on the tip side of the tightening portion can be fixed to the first member or the second member.

5. The shoe according to claim 1, wherein the first insertion portion and the second insertion portion are positioned so as to face each other.

6. The shoe according to claim 1, wherein a portion on the base end side of the tightening portion is provided at a position higher than either the first insertion portion or the second insertion portion.

7. the tightening portion is provided at the rear end portion of the shoe, both the first insertion portion and the second insertion portion have a slit shape extending in the left-right direction, which is a direction matching the foot width direction of the wearer's foot, The shoe according to claim 1, wherein the tightening portion is configured to be tightened with the axis extending in the left-right direction as the tightening center.

8. In a state where the tightening portion is tightened, a portion on the tip side of the tightening portion is sandwiched and held by a portion of the tightening portion excluding the portion on the tip side thereof and either one of the first member and the second member. The shoe according to claim 1.

9. The tightening portion includes a rewound portion that is rewound in a loop shape while being inserted into one of the first insertion portion and the second insertion portion. A portion on the tip side of the tightening portion and a portion on the base end side of the tightening portion with respect to the rewound portion are both inserted into the insertion portion on the side different from the one insertion portion among the first insertion portion and the second insertion portion. The shoe according to claim 1.

10. The first member is the heel counter. The second member is the shell. The third member is the upper body. The shoe according to claim 1.

11. The first insertion portion provided on the heel counter is provided at a position higher than the second insertion portion provided on the shell. The shoe according to claim 10.

12. The first member is the heel counter. The second member is the upper body. The third member is the shell. The shoe according to claim 1.

13. The first member is the shell. The second member is the upper body. The third member is the heel counter. The shoe according to claim 1.

14. A shoe provided with an insertion space into which a wearer's foot is inserted, A flexible shell including a bottom wall portion having a ground contact surface and a peripheral wall portion erected from the periphery of the bottom wall portion, A bag-shaped upper body that is accommodated in the shell and provided with an opening into which a wearer's foot can be inserted, A heel counter that is harder than the shell and the upper body, is accommodated in the shell, and is configured to be able to cover the peripheral surface of the heel portion of the wearer's foot by being disposed outside the upper body, And a fixing portion for fixing the shell, the upper body, and the heel counter to each other. The fixing portion is constituted by a belt-shaped tightening member, a through-hole-shaped first insertion portion provided on the upper body, a through-hole-shaped second insertion portion provided on the heel counter, and a through-hole-shaped third insertion portion provided on the shell. The tightening member is tightened so as to form a loop while being inserted into the first insertion portion, the second insertion portion, and the third insertion portion, whereby the upper body, the heel counter, and the shell can be fixed to each other in a state of being tightened by the tightening member. A shoe.

15. The shoe according to claim 14, wherein the first insertion portion, the second insertion portion, and the third insertion portion are positioned so as to face each other.

16. The tightening member is attached to the rear end portion of the shoe. The first insertion portion, the second insertion portion, and the third insertion portion all have a slit shape extending in the left-right direction, which is a direction matching the foot width direction of the wearer's foot. The shoe according to claim 14, wherein the tightening member is configured to be tightened around an axis extending in the left-right direction as a tightening center.

17. The heel counter has a surrounding portion that covers the circumferential surface of the heel portion of the wearer's foot, and a protruding portion that extends from the lower end of the surrounding portion toward the bottom wall portion side and protrudes toward the peripheral wall portion side. On the inner peripheral surface of the peripheral wall portion, a pressing surface that protrudes toward the inside of the shell and faces the bottom wall portion side is provided. The protruding portion is at least positioned between the pressing surface and the bottom wall portion, so that the upper body of the portion facing the protruding portion is sandwiched between the pressing surface and the bottom wall portion with the upper body interposed therebetween, whereby the heel counter is fixed to the shell. The shoe according to claim 1 or 14.

18. The protruding portion has a flare shape. The shoe according to claim 17, wherein the heel counter further has a bottom portion extending from the lower end of the protruding portion toward the inside of the shell.

19. The peripheral wall portion has an inner-foot-side peripheral wall portion configured to cover the inner-foot-side portion of the wearer's foot and an outer-foot-side peripheral wall portion configured to cover the outer-foot-side portion of the wearer's foot. The heel counter has a surrounding portion that covers the circumferential surface of the heel portion of the wearer's foot, and a belt-shaped winding portion having one end connected to a first portion that covers the inner-foot-side circumferential surface of the heel portion of the wearer's foot among the surrounding portions, and the other end connected to a second portion that covers the outer-foot-side circumferential surface of the heel portion of the wearer's foot among the surrounding portions. A fourth insertion portion in the form of a through hole is provided in the inner-foot-side peripheral wall portion. A fifth insertion portion in the form of a through hole is provided in the outer-foot-side peripheral wall portion. The shoe according to claim 1 or 14, wherein the winding part is wound along the outer surface of the part that is inserted into the fourth insertion part and the fifth insertion part and covers the toenail of the foot of the wearer of the shell, so that the heel counter can be fixed to the shell.

20. The winding part is composed of two members, an inner-foot-side winding member having one end connected to the first part and an outer-foot-side winding member having one end connected to the second part. The shoe according to claim 19, wherein the other end of the inner-foot-side winding member and the other end of the outer-foot-side winding member are fixed, so that the heel counter can be fixed to the shell.

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