JP2021153873A - Upper structure for shoe, and shoe having upper structure - Google Patents

Abstract

To provide an upper structure for a shoe, capable of improving holdability to a heel part of a foot of a wearer.SOLUTION: An upper structure for a shoe is provided with an inner upper 20 having an instep upper area 20A0 for covering at least an instep upper part of a foot of a wearer, an outer upper 21 having a heel area H for covering at least a heel part of the foot of the wearer, and an elastic telescopic part 20B for generating tension P toward a bottom edge of the heel area H of the outer upper 21 to the instep upper area 20A0 of the inner upper 20 at the wearing time of the shoe 1.SELECTED DRAWING: Figure 9

Description

The present invention relates to a shoe upper structure capable of improving the holdability of the wearer's foot on the heel, and a shoe having the upper structure.

U.S. Pat. No. 4,438,574 describes sports shoes (10) with an upper structure consisting of an elastic inner layer (40) and a non-stretchable outer layer (42) in the anterior region. ) Is described (column 4, lines 32 to 39 and FIG. 1 to 4). Here, the front region refers to the region of the toe portion of the foot (column 3, lines 60 to 63).

According to the above US patent specification, the stretchable inner layer (40) is slightly stretched so that the inner layer (40) can be matched to the shape of the anterior region of the foot to obtain an appropriate fit. As well as possible (column 3, lines 11-13), the non-stretchable outer layer (42) prevents the inner layer (40) from collapsing and losing proper fit in the anterior region of the foot. It is stated that it can be done (lines 17 to 21 of the same column).

However, in the upper structure, the inner layer (40) is provided so as to evenly tighten the entire front region of the foot, and the outer layer (42) is provided so as to completely overlap the inner layer (40). The focus was only on the fit of the anterior region of the foot. On the other hand, it is only described that a general heel reinforcing portion is provided in the heel portion region of the upper structure. In the above upper structure, it is possible to exert the holdability by the heel reinforcement part against the heel part of the foot by pressing the instep part to the sole side by tightening the shoelace, but sports shoes, among them, Indoor sports shoes that involve violent lateral movement are required to have higher holdability.

By the way, there are also known configurations such as a tongue band that fixes a part of the tongue (tongue leather part) to the bottom of the upper, and a gusset tongue that connects the tongue to the upper body, but these both tighten the foot in the vertical direction. Since it is provided in the foot, it is insufficient from the viewpoint of improving the holdability to the heel of the foot.

The present invention has been made in view of such conventional circumstances, and the problem to be solved by the present invention is to provide an upper structure for shoes capable of improving the holdability of the wearer's foot on the heel. be. Further, the present invention intends to provide a shoe having such an upper structure.

The shoe upper structure according to the present invention has a first upper portion having an upper foot region covering at least the upper back of the foot of the wearer and a second heel region having a heel region covering at least the heel portion of the wearer's foot. The upper portion is provided with a stretchable stretchable portion that generates a tension toward the lower end of the heel region of the second upper portion with respect to the upper foot region of the first upper portion when the shoe is worn.

According to the present invention, when the shoe is worn, the elastic portion exerts a tension toward the lower end of the heel region of the second upper portion with respect to the upper foot region of the first upper portion, so that the first upper portion The upper foot region of the foot presses against the upper back of the foot, whereby the heel portion of the foot moves toward the heel region of the second upper portion via the upper back of the foot. As a result, the heel portion of the foot can be held in the heel region of the second upper portion and held by the second upper portion, and the holdability with respect to the heel portion of the foot can be improved.

In the present invention, the stretchable portion has a stretchable region extending to at least a part of the region from the Lisfranc joint to the calcaneus on at least one of the medial and lateral instep sides of the foot. As a result, when the shoe is worn, the elastic region allows tension to be applied from the cuneiform bone side, that is, the upper back region of the foot to the calcaneus side at least on either the inner instep side or the outer instep side of the foot.

In the present invention, the stretchable portion has a stretchable region extending in a direction intersecting the Chopard joint (transverse tarsal joint) on the medial and lateral instep sides of the foot. As a result, when the shoe is worn, the elastic region allows tension to be applied from the cuneiform bone side, that is, the upper back region of the foot to the calcaneus side on both the inner and outer instep sides of the foot.

In the present invention, the telescopic portion is arranged below the upper foot region of the first upper portion, one end is continuously provided in the upper foot region of the first upper portion, and the other end is the second upper. It extends to the lower end of the heel area of the part. As a result, when the shoe is worn, the elastic portion can exert a tension toward the lower end of the heel region of the second upper portion with respect to the upper foot region of the first upper portion.

In the present invention, the first upper portion is arranged inside or outside the second upper portion.

In the present invention, the first upper portion constitutes the tongue leather portion of the shoe. As a result, it is not necessary to provide the tongue leather portion separately from the first upper portion, the structure can be simplified, the cost can be reduced, and the shoe can be made lighter.

In the present invention, the elasticity of the first upper portion is increased by the expansion and contraction of the second upper portion because the first upper portion integrally has the expansion and contraction portion and constitutes the first upper portion as a whole. It is larger than the sex, and the first and second upper portions overlap, and the overlapping regions of the first and second upper portions are separated.

In this case, the entire upper structure can be configured only by the first and second upper portions, whereby the structure can be simplified, the cost can be reduced, and the shoe can be made lighter. Moreover, in this case, since the first and second upper portions overlap, the second upper portion retains the upper shape when the first upper portion having the elastic portion expands and contracts. Since it can demonstrate its shape, it can further improve the holdability to the foot. Further, in this case, since the overlapping regions of the first and second upper portions are separated, the peripheral length of the cuff of the upper structure can be changed, thereby changing the instep. Since it can absorb individual differences in height and size around the ankle, it can handle various feet with the same foot length and width but different instep and ankle sizes.

In the present invention, the second upper portion has a shoe opening which is an opening for inserting a foot and a throat portion which is an opening which extends continuously in the front-rear direction, and the first upper portion is arranged in the throat portion. It has a tongue leather part, an elastic part is arranged below the first upper part, one end is connected to the first upper part, and the other end is the heel region of the second upper part. It extends to the bottom.

In this case, it is not necessary to provide the tongue leather portion separately from the first upper portion, the structure can be simplified, the cost can be reduced, and the shoe can be made lighter. Further, when the shoe is worn, the elastic portion can apply a tension toward the lower end of the heel region of the second upper portion with respect to the upper foot region of the first upper portion.

The shoe according to the present invention has an upper structure and a sole according to the present invention, and the lower part of the upper structure is fixed to the sole.

As described above, according to the present invention, when the shoe is worn, the elastic portion exerts a tension toward the lower end of the heel region of the second upper portion with respect to the upper foot region of the first upper portion. The upper dorsal region of the first upper foot presses against the upper dorsal foot of the foot, which causes the heel of the foot to move toward the heel region of the second upper via the upper dorsal foot, resulting in , The heel portion of the foot can be held by the second upper portion, and the holdability with respect to the heel portion of the foot can be improved.

It is a side view of the inner instep side of the sports shoe (right foot) provided with the upper structure according to one embodiment of the present invention. It is a side view of the outer instep side of the sports shoe (FIG. 1). It is a top view of the sports shoes (FIG. 1). It is a figure which shows the inner upper (first upper) and outer upper (second upper) which constitute the upper structure (FIG. 1) with the shoelace of the sports shoe (FIG. 1) removed. It is a figure which shows the inner upper (first upper) and outer upper (second upper) which constitute the upper structure (FIG. 1) in the state which the shoelace of the sports shoe (FIG. 2) is removed. It is a figure which shows the inner upper (first upper) and outer upper (second upper) which constitute the upper structure (FIG. 1) with the shoelace of the sports shoe (FIG. 3) removed. FIG. 6 is a sectional view taken along line VIA-VIA of FIG. It is a figure which shows typically the upper structure of FIG. It is a figure which shows typically the upper structure of FIG. It is a figure which shows the upper structure of FIG. 7 together with the skeleton diagram of a foot. It is a figure which shows the upper structure of FIG. 8 together with the skeleton diagram of a foot. It is a figure which shows typically the upper structure by the 1st modification of this invention. It is a figure which shows typically the upper structure by the 2nd modification of this invention. It is a figure which shows typically the upper structure by the 3rd modification of this invention. It is a figure which shows typically the upper structure by the 4th modification of this invention.

Hereinafter, examples of the present invention will be described with reference to the accompanying drawings.
1 to 10 are diagrams for explaining an upper structure according to an embodiment of the present invention and sports shoes using the upper structure, and here, as sports shoes, indoor shoes for ball games such as volleyball and handball. Take as an example. 1 to 6 are external views of the shoe (for the right foot), FIG. 6A is a cross-sectional view of the shoe, and FIGS. 7 to 10 are views schematically showing the upper structure of the shoe.

In the following description, the upper (upper / upper / upper) and lower (lower / lower / lower) represent the vertical positional relationship of the shoe, and the front (front / front / front) and rear (rear side). / Rear / Rear) represents the positional relationship in the front-rear direction of the shoe, and the width direction refers to the left-right direction of the shoe. For example, in the case of the side view of FIG. 1, the upper side and the lower side point to the upper side and the lower side of the figure, respectively, and the front side and the rear side point to the left side and the right side of the figure, respectively, and the widths thereof. The direction points to the depth direction of the paper in the figure.

As shown in FIGS. 1 to 3, the sports shoe 1 includes an upper 2 extending over the entire length of the shoe so as to cover the entire foot of the wearer, and a midsole 3 fixed to the lower portion of the upper 2. There is.

The upper 2 includes an inner upper (first upper) 20 arranged inside the shoe 1 and an outer upper (second upper) 21 arranged outside the shoe 1 (hence, the outside of the inner upper 20). And have. In this example, the inner upper 20 includes the tongue (tongue leather portion) of the shoe 1. An opening is formed in the upper portion of the outer upper 21 to be a cuff 10 and a throat portion 10a communicating with the cuff 10 and extending in front of the cuff 10. The shoelace 11 as a tightening member of the shoe 1 is passed through the eyelet holes 2a formed in the left and right open end edges of the throat portion 10a.

In the heel area of the outer upper 21, a heel counter 4 is provided inside the heel area. The heel counter 4 is a thin-walled U-shaped member extending from the inner instep side of the heel through the rear end of the heel to the outer instep side of the heel, and has a shape-retaining property in the heel region of the outer upper 21. It is provided so as to contribute to the holdability of the heel of the foot while maintaining it. An outsole 5 having a ground contact surface that is in contact with the floor surface or the like is fixed to the lower surface of the mid sole 3. The sole of the shoe 1 is composed of the mid sole 3 and the out sole 5.

As shown in FIGS. 4 to 6, the inner upper 20 has a portion that overlaps with the throat portion 10a of the outer upper 21 and functions as a tongue of the shoe 1, and the toe further forward beyond the throat portion 10a. It extends to the tip and the lower ends of the inner and outer insteps on both the left and right sides (see the dotted line in each figure). The inner upper 20 is arranged below the main body portion (first upper portion) 20A and the main body portion 20A, which are arranged so as to cover substantially the entire area of the back of the foot (that is, the instep), and have elasticity. It has a part 20B. The upper end 20b of the telescopic portion 20B is integrally connected to the lower end 20a of the inner upper 20 by sewing or the like.

The rear end 20C of the inner upper 20 extends diagonally downward toward the lower end of the heel region. In this example, the telescopic portion 20B is provided as a substantially triangular region having an apex on the rear end 20C, and the upper end 20b of the telescopic portion 20B and the lower end 20a of the inner upper 20 are obliquely downward toward the front. Extends to. The lower ends of the main body portion 20A and the telescopic portion 20B are fixed to the midsole 3. The rearmost end 20Bb of the telescopic portion 20B is arranged at the position of the lower end of the heel region of the outer upper 21.

With this configuration, when the shoe 1 is worn, the expansion / contraction portion 20B of the inner upper 20 extends, so that a tension P toward the lower end of the heel region of the outer upper 21 is generated with respect to the main body portion 20A. By the action of this tension P, the upper part of the back of the foot of the wearer is pressed diagonally downward on the rear side, and as a result, the heel part of the foot is held in the heel area of the outer upper 21 so that the heel part is held. It has become. An inner upper 20 composed of a main body portion 20A and a telescopic portion 20B and an outer upper 21 constitute an upper structure according to the present embodiment.

In FIG. 6, the shaded area surrounded by the alternate long and short dash line _{indicates the upper foot area 20A 0} of the inner upper portion 20 corresponding to the upper back of the foot, and the inner upper 20 is at least the upper back area 20A of the foot. _{Has 0} . Further, the outer upper 21 has at least a heel region.

FIG. 6A is a cross-sectional view taken along the line VIA-VIA of FIG. 6, which is a cross-sectional view of the inner upper 20 where the telescopic portion 20B is not provided. Along with the lower end of the midsole 3, it is fixed to the midsole 3 and the insole 30 arranged on the upper surface thereof by adhesion, sewing, or the like. Further, although the outer upper 21 overlaps with the main body 20A of the inner upper 20, the outer upper 21 is separated from the main body 20A of the inner upper 20 except for the lower end of the outer upper 21 and the lower end of the main body 20A. doing.

This point is the same at the place where the telescopic portion 20B is provided in the inner upper 20, and although not shown, the lower end of the telescopic portion 20B of the inner upper 20 is the same as the lower end of the outer upper 21 and the midsole 3 And it is fixed to the insole 30 arranged on the upper surface thereof by adhesion, sewing, or the like. Further, although the outer upper 21 overlaps with the expansion / contraction portion 20B of the inner upper 20, the outer upper 21 is separated from the expansion / contraction portion 20B of the inner upper 20 except for the lower end of the outer upper 21 and the lower end of the expansion / contraction portion 20B. doing. The peripheral length of the inner peripheral surface of the inner upper 20 at the place where the telescopic portion 20B is provided is shorter than the peripheral length of the outer peripheral surface of the last (shoe type) used for manufacturing the upper structure. As a result, when the wearer wears the shoe 1, the inner upper 20 is extended so that the tension due to the inner upper 20 acts on the back of the foot.

The main body 20A of the inner upper 20 is made of artificial leather, synthetic leather, a mesh material having low elasticity, etc., and the elastic part 20B is made of elastic fibers such as spandex (polyurethane elastic thread), for example. There is. The outer upper 21 is made of artificial leather, synthetic leather, a mesh material having low elasticity, or the like.

The midsole 3 is composed of a soft elastic member, and specifically, a thermoplastic synthetic resin such as ethylene-vinyl acetate copolymer (EVA), a foam thereof, a thermosetting resin such as polyurethane (PU), and the like. It is composed of the foam, a rubber material such as butadiene rubber or chloroprene rubber, or the foam. The outsole 5 is composed of a rigid elastic member, specifically, a thermoplastic resin such as a thermoplastic polyurethane (TPU) or a polyamide elastomer (PAE), a thermosetting resin such as an epoxy resin, or a solid rubber. Has been done.

Here, FIGS. 7 and 8 show schematic representations of FIGS. 4 and 5, respectively. In each figure, the midsole 3 and the outsole 5 are not shown, and only the upper 2 is shown. In FIGS. 7 and 8, the solid line indicates the inner upper 20, the alternate long and short dash line indicates the outer upper 21, and the gray colored region indicates the expansion / contraction portion 20B.

Next, FIGS. 9 and 10 show the skeletal structure of the foot drawn in FIGS. 7 and 8, respectively. In these figures, the symbols H, M, and F indicate the heel region, the midfoot region, and the forefoot region of the upper 2, respectively. The code MT indicates the metatarsal bone, CmB indicates the wedge-shaped bone, NB indicates the boat-shaped bone, CdB indicates the cubic bone, TA indicates the talus bone, CA indicates the ankle bone, and the symbol LF indicates the Lisfranc joint ( The ankle metatarsal joint) and the TT indicate the Chopard joint (lateral ankle joint).

As shown in FIG. 9, on the medial instep side of the foot, the telescopic portion 20B is arranged in at least a part of the region from the cuneiform bone CmB to the calcaneus CA through the scaphoid bone NB and the talus TA. There is. Further, the upper end 20b of the telescopic portion 20B crosses the cuneiform bone CmB, the scaphoid bone NB and the talus TA, and intersects at least the Chopard joint TT (or both the Chopard joint TT and the Lisfranc joint LF). The rearmost end 20Bb of the telescopic portion 20B is arranged at the bottom of the calcaneus CA.

As shown in FIG. 10, on the outer instep side of the foot, the telescopic portion 20B is arranged in at least a part of the region extending through the cuboid bone CdB to the calcaneus CA. Further, the upper end 20b of the telescopic portion 20B crosses the cuboid bone CdB and intersects at least the Chopard joint TT (or both the Chopard joint TT and the Lisfranc joint LF). The rearmost end 20Bb of the telescopic portion 20B is arranged at the bottom of the calcaneus CA.

Next, the action and effect of this example will be described.
When the shoe 1 is worn, the stretchable portion 20B is stretched to exert a tension P toward the lower end of the heel region H of the outer upper 21 on the upper _{foot back region 20A 0 of the inner upper 20 (FIGS. 7 to 7).} 10), the upper foot area 20A _{0 of} the inner upper 20 is pressed against the upper foot of the foot, whereby the heel of the foot moves to the heel area H side of the outer upper 21 via the upper back of the foot. As a result, the heel portion of the foot can be held by the outer upper 21, and the holdability with respect to the heel portion of the foot can be improved.

In this embodiment, the upper end 20b of the telescopic portion 20B extends to at least a part of the region from the cuneiform bone CmB to the calcaneus CA on the inner instep side of the foot, so that when the shoe 1 is worn, the upper end 20b is extended. The telescopic portion 20B can apply a tension P from the cuneiform bone CmB side, that is, the upper dorsal region 20A _{0 to the calcaneus CA side on the inner instep side of the foot.}

In this embodiment, the upper end 20b of the telescopic portion 20B is extended in the direction intersecting the calcaneus joint (lateral ankle joint) TT on the medial and lateral instep sides of the foot, so that when the shoe 1 is worn, the telescopic portion 20B is extended. Therefore, a tension P can be applied from the cuneiform bone CmB side, that is, the upper dorsal region 20A _{0 to the calcaneus CA side on both the medial and lateral instep sides of the foot.}

In this embodiment, since the telescopic portion 20B has a triangular shape having an apex on the rear end 20C of the inner upper 20, it is most easily stretched on the rear end 20C, whereby the telescopic portion 20B The rear end 20C can be aligned with the three-dimensional shape of the heel of the foot.

In this embodiment, the inner upper 20 is composed of a main body portion 20A that covers the upper part of the back of the foot and an elastic portion 20B that is continuously provided below the main body portion 20A. The upper part of the back of the foot can be firmly held by the portion 20A, and the tension P toward the calcaneus CA side of the outer upper 21 can be applied to the main body portion 20A by the telescopic portion 20B.

In this embodiment, since the inner upper 20 is arranged inside the outer upper 21, the outer upper 21 allows the expansion and contraction portion 20B of the inner upper 20 to expand when the shoe 1 is worn, while the outer upper 21 allows the inner upper to extend. The telescopic portion 20B of 20 can be held from the outside, and the holdability of the heel portion of the foot can be improved.

In this embodiment, since the inner upper 20 constitutes the tongue (tongue leather portion) of the shoe 1, it is not necessary to provide the tongue separately from the inner upper 20, the structure can be simplified, and the cost can be reduced. At the same time, the weight of the shoe 1 can be reduced.

In this embodiment, the inner upper 20 integrally has the telescopic portion 20B to form the inner upper 20 as a whole, and the inner upper 20 and the outer upper 21 overlap and the overlapping regions are separated from each other. ing.

As a result, the entire upper structure can be configured only by the inner upper 20 and the outer upper 21, and as a result, the structure can be simplified, the cost can be reduced, and the shoe 1 can be made lighter. Further, since the inner upper 20 and the outer upper 21 overlap each other, when the inner upper 20 having the telescopic portion 20B is extended, the outer upper 21 can exhibit the shape-retaining property of maintaining the upper shape, so that it can be applied to the foot. Holdability can be improved. Further, since the overlapping areas of the inner upper 20 and the outer upper 21 are separated, the peripheral length of the cuff 10 of the upper structure can be changed, whereby the height of the instep and the circumference of the ankle can be changed. Since it can absorb individual differences in size, it can handle various feet with the same foot length and width but different instep and ankle sizes. Further, in this case, the elasticity of the inner upper 20 as a whole is higher than the elasticity of the outer upper 21.

Hereinafter, modifications of the present invention will be described. In each of the following figures showing the modified examples, the same reference numerals as those in the above-described embodiment indicate the same or corresponding parts.

[First modification]
In the above embodiment, both the inner upper 20 and the outer upper 21 are extended to the tip of the forefoot region F (that is, the tip of the toe), but the application of the present invention is not limited to this. In this first modification, as shown in FIG. 11, the outer upper 21 extends to the tip of the forefoot region F, but the inner upper 20 does not extend to the tip of the forefoot region F. The front end 20f remains at an intermediate position in the forefoot region F. The telescopic portion 20B of the inner upper 20 occupies a triangular region as in the above embodiment.

Even in this case, when the shoes 1 are worn, the elastic portion 20B exerts a tension P toward the lower end of the heel region H of the outer upper 21 on the upper _{foot back region 20A 0 of the inner upper 20, so that the inner upper 20} The upper foot region 20A ₀ presses against the upper back of the foot, whereby the heel of the foot moves toward the heel region H of the outer upper 21 via the upper back of the foot, and as a result, the heel of the foot. Can be held by the outer upper 21, and the holdability to the heel of the foot can be improved.

[Second modification]
In the above-described embodiment, both the inner upper 20 and the outer upper 21 are extended to the tip of the forefoot region F, but the application of the present invention is not limited to this. In this second modification, as shown in FIG. 12, the inner upper 20 extends to the tip of the forefoot region F, but the outer upper 21 does not extend to the tip of the forefoot region F. The front end 21f remains at the front end position of the midfoot region M. The telescopic portion 20B of the inner upper 20 occupies a triangular region as in the above embodiment.

Even in this case, when the shoes 1 are worn, the elastic portion 20B exerts a tension P toward the lower end of the heel region H of the outer upper 21 on the upper _{foot back region 20A 0 of the inner upper 20, so that the inner upper 20} The upper foot region 20A ₀ presses against the upper back of the foot, whereby the heel of the foot moves toward the heel region H of the outer upper 21 via the upper back of the foot, and as a result, the heel of the foot. Can be held by the outer upper 21, and the holdability to the heel of the foot can be improved.

[Third variant]
In the above-described embodiment, both the inner upper 20 and the outer upper 21 are extended to the tip of the forefoot region F, but the application of the present invention is not limited to this. In this third modification, as shown in FIG. 13, the inner upper 20 extends to the tip of the forefoot region F, but the outer upper 21 does not extend to the tip of the forefoot region F. The front end 21f remains at the front end position of the midfoot region M. Unlike the above embodiment, the telescopic portion 20B of the inner upper 20 occupies a band-shaped region extending from the upper back of the foot to the lower end of the heel region along the rear end 20C of the inner upper 20.

Even in this case, when the shoes 1 are worn, the elastic portion 20B exerts a tension P toward the lower end of the heel region H of the outer upper 21 on the upper _{foot back region 20A 0 of the inner upper 20.} The upper foot region 20A ₀ presses against the upper back of the foot, whereby the heel of the foot moves toward the heel region H of the outer upper 21 via the upper back of the foot, and as a result, the heel of the foot. Can be held by the outer upper 21, and the holdability to the heel of the foot can be improved.

[Fourth variant]
In the above-described embodiment and the first to third modified examples, the main body portion 20A of the inner upper 20 integrally has the telescopic portion 20B, so that the main body portion 20A and the telescopic portion 20B as a whole provide the inner upper 20. Although the constructed example is shown, the application of the present invention is not limited to this.

FIG. 14 shows a fourth modification of the present invention. In the figure, the same reference numerals as those of the above-described embodiment and the first to third modified examples indicate the same or corresponding parts. In this fourth modification, the inner upper 20 is provided as a tongue (tongue leather portion), and the elastic portion is provided as a band-shaped elastic band 20B. The upper end of the elastic band 20B is connected to the rear end portion (right end portion in the drawing) of the inner upper 20 by sewing or the like, and the lower end is fixed to the lower end of the heel region of the outer upper 21.

Even in this case, when the shoe 1 is worn, the tension P from the telescopic belt 20B acts on the inner upper 20 in the direction toward the lower end of the heel region. The upper portion is pressed diagonally downward, and as a result, the heel portion of the foot is contained in the heel region of the outer upper 21, and the heel portion can be held.

[Fifth variant]
In the above-described embodiment and the first and second modified examples, an example in which the telescopic portion 20B is arranged in a triangular shape in a side view is shown, but the application of the present invention is not limited thereto. The telescopic portion 20B may be extended in a rectangular shape, a polygonal shape, an elliptical shape, or the like in the front-rear direction.

[Sixth variant]
In the above-described embodiment and each of the modified examples, _{the first upper portion (inner upper) 20 having the upper back region 20A 0} was arranged inside the second upper portion (outer upper) 21 having the heel region. Although an example is shown, the positional relationship between the inside and outside of both uppers may be reversed. That is, the first upper portion 20 may be arranged outside the second upper portion 21.

[7th variant]
In the above-described embodiment and each of the above-described modifications, an example in which the inner upper 20 and the outer upper 21 are overlapped is shown, but the application of the present invention is not limited thereto. The inner upper 20 and the outer upper 21 do not necessarily have to overlap. In that case, the third upper portion or the interior material may be arranged at the boundary between the inner upper 20 and the outer upper 21.

<Other variants>
The above-mentioned examples and each modification should be regarded in all respects merely as an example of the present invention, and are not limited. Those skilled in the art in the field to which the present invention is related will not deviate from the spirit and essential features of the present invention when considering the above-mentioned teaching contents, even if not explicitly stated in the present specification. Various variants and other embodiments that employ the principle of can be constructed.

<Other application examples>
In the above-described embodiment and each of the above-described modifications, the present invention has been applied to indoor shoes for ball games such as volleyball and handball, but the present invention has been used for indoors for racket competition such as tennis, badminton, and table tennis. It can also be applied to shoes. Furthermore, the present invention is also applicable to other sports shoes and shoes.

As described above, the present invention is useful for an upper structure for improving the holdability of the wearer's foot on the heel in shoes, especially sports shoes, especially indoor shoes.

1: Indoor shoes (shoes)

10: Wearing mouth 10a: Throat part

2: Upper

20: Inner upper (first upper part)
20A: Main body (first upper part)
20A ₀ : Upper foot area 20B: Telescopic part (expandable area)
20b: Upper end (one end)

21: Outer upper (second upper part)


P: Tension Cmb: Cuneiform bone CA: Calcaneus LF: Lisfranc joint TT: Chopard joint H: Heel region

U.S. Pat. No. 4,438,574 (see column 4, lines 32-39 and FIG. 1-4, and column 3, lines 11-13, 17-21, and 60-63).

Claims (10)

In the upper structure for shoes
A first upper portion having an upper foot area covering at least the upper back of the wearer's foot, and
A second upper portion having a heel area covering at least the heel portion of the wearer's foot, and
A stretchable stretchable portion that generates tension toward the lower end of the heel region of the second upper portion with respect to the upper back region of the first upper portion when the shoe is worn.
Upper structure for shoes with. In claim 1,
The stretchable portion has a stretchable region extending to at least a part of the region from the Lisfranc joint to the calcaneus on at least one of the medial and lateral instep sides of the foot.
The upper structure for shoes is characterized by that. In claim 1,
The stretchable portion has a stretchable region extending in a direction intersecting the Chopard joint on the medial and lateral instep sides of the foot.
The upper structure for shoes is characterized by that. In claim 1,
The telescopic portion is arranged below the foot dorsal upper region of the first upper portion, one end is continuously provided in the foot dorsal upper region of the first upper portion, and the other end is the second. Extends to the lower end of the heel area of the upper part of the
The upper structure for shoes is characterized by that. In claim 1,
The first upper portion is arranged inside the second upper portion.
The upper structure for shoes is characterized by that. In claim 1,
The first upper portion is arranged outside the second upper portion.
The upper structure for shoes is characterized by that. In claim 1,
The first upper portion constitutes the tongue leather portion of the shoe.
The upper structure for shoes is characterized by that. In claim 1,
Since the first upper portion integrally has the stretchable portion and constitutes the first upper portion as a whole, the elasticity of the first upper portion is reduced to that of the second upper portion. It is larger than the elasticity, the first and second upper portions overlap, and the overlapping regions of the first and second upper portions are separated.
The upper structure for shoes is characterized by that. In claim 1,
The second upper portion has a shoe opening which is an opening for inserting a foot and a throat portion which is an opening which extends continuously in the front-rear direction, and the first upper portion is arranged in the throat portion. It has a tongue leather portion, the telescopic portion is arranged below the first upper portion, one end is continuously provided with the first upper portion, and the other end is of the second upper portion. Extending to the lower end of the heel region,
The upper structure for shoes is characterized by that. The upper structure and sole according to claim 1 are provided.
The lower part of the upper structure is fixed to the sole,
Shoes that feature that.

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