WO2022254527A1 - Shoe - Google Patents

Abstract

The present invention provides a shoe with excellent fit that follows the movement of the foot. The upper of the shoe includes: an inner ankle cushion part 51B disposed in correspondence with a lower portion of the inner ankle of the wearer; an inner supporting cushion part 52B which extends upward and forward from the back side of the upper and which has a front end part extending above the inner ankle cushion part 51B so as to form a gap G with respect to the inner ankle cushion part 51B in a side view; an outer ankle cushion part 51A disposed in correspondence with a lower portion of the outer ankle of the wearer; and an outer supporting cushion part 52A which extends upward and forward from the back side of the upper and which has a front end part extending above the outer ankle cushion part 51A so as to form a gap G with respect to the outer ankle cushion part 51A in a side view.

Description

shoes

The present invention relates to shoes with excellent fit.

In Patent Document 1, in order to improve the fit and stability of the rear part of the foot, etc., a first part behind the medial ankle, a second part that is the arch part of the arch, a third part behind the lateral ankle, and the outside of the foot A shoe provided with a cushioning convex pad that presses at least one portion of the fourth portion in front of the heel of the shoe is disclosed.
In Patent Document 2, a foam is impregnated with a bouncing putty on the inner side of a hard support wall member installed in the area from the heel to the ankle in order to increase the holdability and stability of the heel to ankle. A padded shoe is disclosed.

Utility Model Registration No. 3100215 JP-A-8-252101

However, even with the pads as in Patent Documents 1 and 2, the shoes cannot sufficiently follow the movement of the foot during walking. A walking motion is a repetition of a stance phase and a swing phase, and for example, the cycle of heel contact-foot-sole contact-standing-heel off-foot-toe off is alternately repeated on the left and right feet. During such a walking motion, the ankle swings with respect to the sole with the ankle as a fulcrum, but conventional shoes create a space between the foot and the foot due to the movement of the foot during walking, resulting in a poor fit.

An object of the present invention is to provide shoes that do not create a space even when the wearer's feet move while walking, and that have an excellent fit.

The shoe of the present invention has a sole and an upper provided above the sole, wherein the upper comprises an inner ankle cushion portion arranged corresponding to the lower inner ankle of the wearer, and a rear side of the upper. an inner auxiliary cushion portion extending forward and upward from the wearer and having a front end portion extending above the inner ankle cushion portion so as to form a gap between the inner ankle cushion portion and the inner ankle cushion portion in a side view; and an outer ankle cushion portion arranged corresponding to the outer ankle cushion portion; and an external auxiliary cushion portion extending upward.

In the shoe of the present invention, even when the foot moves during walking, the outer ankle cushion, the outer auxiliary cushion, the inner ankle cushion, and the inner auxiliary cushion are in close contact with the area around the ankle, making it difficult to create a space. Therefore, the shoes of the present invention have an excellent fit not only when standing, but also when walking.

FIG. 2 is an outer side view of the shoe of the first embodiment; The inside view of the shoe. A rear view of the shoe. The top view of the shoes. FIG. 2 is a cross-sectional view taken along line VV in FIG. 1; FIG. 5 is a cross-sectional view taken along line VI-VI of FIG. 4; FIG. 2 is a partial cross-sectional view taken along line VII-VII of FIG. 1; FIG. 2 is a partial cross-sectional view taken along line VIII-VIII of FIG. 1; FIG. 4 is an inner side view of the shoe with the tightening member removed; FIG. 4 is a reference plan view showing the positional relationship between each cushion portion of the sole and the foot bone. FIG. 10 is a reference outer side view showing the positional relationship between each cushion portion and the foot bone when the wearer wears the shoes. Reference inner side view showing the same positional relationship. A reference perspective view for explaining the structure of each cushion part, such as an inner ankle cushion part. FIG. 3 is a reference perspective view of each part forming the upper and sole (excluding the tightening member, the parts forming the outsole portion and the midsole portion); A reference plan view of the same part. Sectional drawing which cut|disconnected the shoe of 2nd Embodiment in the front-back direction. The reference top view of the shoes of 3rd Embodiment. The top view of the shoes of the 1st example of 4th Embodiment. The top view of the shoe of the 2nd example of 4th Embodiment. The outer side view of the shoe of the 1st example of 5th Embodiment. FIG. 11 is an outer side view of a shoe of a second example of the fifth embodiment; FIG. 12 is an outer side view of the shoe of the third example of the fifth embodiment; The inner side view of the shoe of the third example. A rear view of the shoe of the sixth embodiment.

In terms of directions in this specification, the toe side is "front", the heel side is "rear", and the big toe side in the front-back direction is "front" in plan view, based on the foot when the wearer wears the shoe. The side closer to the sole is referred to as "lower" and the side farther from the sole is referred to as "upper" when viewed from the side. The front-rear direction is a direction along the shoe center axis (the shoe center axis is the line connecting the center of the wearer's heel and the part where the tip of the second finger is positioned) in plan view. A side view refers to viewing the shoe from the inside or the outside, and a plan view refers to viewing the shoe from above.
As used herein, the term "substantially" means to include the range permitted in the technical field to which the present invention belongs. In addition, in this specification, if multiple numerical ranges represented by "above the lower limit value and below the upper limit value" are separately described, an arbitrary lower limit value and an arbitrary upper limit value are selected, and "any lower limit value or above any "upper limit value or less" can be set.

[Outline of shoes]
A shoe of the present invention has a sole and an upper provided above the sole.
A sole is a member interposed between the ground and the sole. The sole has an outsole portion that contacts the ground, and optionally a midsole portion above the outsole portion. The upper is a member that covers the foot. The upper has its lower end attached to the periphery of the sole. The upper and sole cooperate to form a foot-receiving space into which the foot is placed.
The upper includes an inner ankle cushion portion disposed corresponding to the lower inner ankle of the wearer in a side view (side view from the inside), an inner auxiliary cushion portion extending forward and upward from the rear side, and a side view (side view from the outside). It has an outer ankle cushion part arranged corresponding to the lower part of the outer ankle of the wearer (side view), and an outer auxiliary cushion part extending forward and upward from the rear side. The inner ankle cushion part and the outer ankle cushion part support the lower part of the inner ankle and the lower part of the outer ankle (around the junction between the tarsal part and the tibia and fibula). It transforms according to movement. Therefore, in the shoes of the present invention, when the wearer walks, it is difficult for a space to occur between the upper portion of the foot and the upper, and the fit is improved.
Hereinafter, the shoes of the present invention will be specifically described with reference to the drawings.
In addition, the shoes are composed of a pair of right and left shoes, one for the left foot and one for the right foot. For the sake of convenience, each figure shows a shoe for the left foot. The shoes for the right foot are not shown because they are symmetrical with the shoes for the left foot.

[First embodiment]
1 is a lateral view of the shoe of the first embodiment (a side view seen from the outside of the shoe), FIG. 2 is a lateral view of the shoe (a side view seen from the inside of the shoe), and FIG. FIG. 4 is a plan view of the same shoe (a view of the shoe viewed from the upper side), FIG. 5 is a cross-sectional view cut in the medial-lateral direction, and FIG. , a cross-sectional view cut in the front-rear direction. FIG. 7 is a cross-sectional view of the cut surface viewed from above, including the outer ankle cushion portion 51A, the outer auxiliary cushion portion 52A, the inner ankle cushion portion 51B, and the inner auxiliary cushion portion 52B, cut in the horizontal direction, and FIG. , is a cross-sectional view of the cut surface viewed from above, cut in the horizontal direction including the outer heel cushion portion 61A and the inner heel cushion portion 61B. The dashed lines in FIGS. 1-4 represent sutures. 1 to 3, the outer ankle cushion portion 51A, the outer auxiliary cushion portion 52A, the inner ankle cushion portion 51B, the inner auxiliary cushion portion 52B, the outer heel cushion portion 61A, the inner heel cushion portion 61B, the lower heel cushion portion 32, The cuboid subbone cushion portion 31 and the arch cushion portion 62 are indicated by thick dashed lines. 5 to 8, the first sheet and the second sheet are represented by one solid line (thicknesses of the first sheet and the second sheet are not represented).
1 to 8, a shoe 100 has a sole 1 and an upper 2. As shown in FIG.
The upper 2 is provided above the sole 1 by connecting the lower peripheral edge of the upper 2 to the upper peripheral edge of the sole 1 . Alternatively, the upper 2 may be connected to the sole 1 by allowing part or all of the lower peripheral edge of the upper 2 to wrap around the upper surface of the sole 1 .

<Sole>
A sole 1 is provided under the upper 2 . The sole 1 preferably has an outsole portion 11 , and preferably has a cuboid under-bone cushion portion 31 and a heel-under cushion portion 32 . In addition, it is preferable that a base cushion portion 33 is provided on the upper surface of the sole 1 in order to improve the wearing comfort of the wearer.
Roughly divided into parts corresponding to the wearer's feet, the sole 1 includes, in order from the front side to the rear side, a forefoot part generally corresponding to the toes, a metatarsal bone, a cuneiform bone, a navicular bone and a cuboid bone. and a rear foot region generally corresponding to the calcaneus. As used herein, the foot skeleton, such as the calcaneus, can be specified based on the standard human foot skeletal structure.
The layer structure of the sole 1 may be a single-layer structure (excluding the cushion portions), or a multi-layer structure of two or more layers. The sole 1 has a layered structure consisting of only the outsole portion 11 which is the portion that contacts the ground, or a multilayer structure having the outsole portion 11 and other sole portions such as the midsole portion 12 . The other sole portion includes a so-called insole (an insole that can be attached and detached inside the shoe). However, the insole, the outsole portion, the midsole portion, the insole portion, and the like are not essential elements of the sole 1 and can be omitted as appropriate.
For example, as shown in FIGS. 5 and 6, the sole 1 includes an outsole portion 11, a midsole portion 12 superimposed on the upper surface of the outsole portion 11 and connected with an adhesive or the like, and the midsole portion 12. a midsole 13 overlaid on the top surface and connected by adhesive or the like. Here, in this specification, "connection" means that two or more conceptual members are connected, for example, two or more conceptual members are bonded by adhesive, solvent bonding, suturing, fusion bonding or joined by any suitable joining means, such as structural joining of parts, and integrally forming two or more members.

The insole portion 13 preferably has a base cushion portion 33, and further preferably has a lining material. Hereinafter, the base cushion portion 33 provided on the sole 1 will be referred to as "sole base cushion portion 33". In addition, each cushion provided on the sole 1 may be collectively referred to as a "sole cushioning material". For example, as shown in FIG. 6, the insole 13 includes a first seat 14, a second seat 15, and a sole cushioning material (sole base cushion portion 33) interposed between the first seat 14 and the second seat 15. , a cuboid sub-bone cushion portion 31 and a sub-heel cushion portion 32). The sole cushioning material will be described in detail in <Cushion portion> below. When the sole 1 has an insole, the sole cushioning material may be provided in the insole instead of the insole portion 13 .

The first sheet 14 is a lining material with which the soles of the wearer's feet are in contact. The second sheet 15 is connected to the upper surface of the midsole portion 12 (the upper surface of the outsole portion 11 if the midsole portion 12 is not provided) using a bonding means 16 such as an adhesive. A space is formed between the first sheet 14 and the second sheet 15 by connecting the peripheral edges of the first sheet 14 and the second sheet 15 by sewing or the like, and the sole cushioning material is enclosed in the space. there is
The first sheet 14 and the second sheet 15 are not particularly limited as long as they are sheet materials having flexibility and mechanical strength. (The foam sheet also includes a so-called sponge sheet.) and a composite sheet material obtained by laminating two or more of these. The first sheet 14 and the second sheet 15 may be made of the same material or may be made of different materials. For example, the first sheet 14 is made of stretchable fabric, and the second sheet 15 is a composite sheet material composed of fabric/foam sheet/fabric (a composite sheet material in which a foam sheet is interposed between two fabrics). ) is used.

<upper>
The upper 2 is a constituent member of the shoe that covers the instep and the heel, and preferably covers the instep and the heel including the toes. Roughly divided into parts corresponding to the wearer's feet, the upper 2 includes, in order from the front side to the rear side, a forefoot part that generally covers the toes, a metatarsal bone, a cuneiform bone, a navicular bone and a cuboid bone. It has a metatarsal region that generally covers the calcaneus and a hindfoot region that generally covers the calcaneus. The upper edge of the midfoot portion and the upper edge of the rearfoot portion cooperate to define the collar of the foot. Preferably, the midfoot region is divided into two or more pieces in the portion defining the collar to allow for variable collar size. For example, the middle foot portion is divided into two pieces, an outer piece portion 21 and an inner piece portion 22, and by widening the space between the outer piece portion 21 and the inner piece portion 22, the opening is enlarged. By narrowing the distance between the outer piece 21 and the inner piece 22, the opening can be made smaller. Further, the upper 2 is provided with a tightening member 4 for adjusting the interval between the two or more pieces (for example, the interval between the outer piece 21 and the inner piece 22). The tightening member 4 spans the inside and outside of the upper 2 along the inside and outside directions of the upper 2, has a first end 4a connected to the inside of the upper 2, and has a second end 4b (first end and ) is connected to the outside of the upper 2 . In order to maintain the medial longitudinal arch of the foot, the tightening member 4 is connected at its first end 4a at a position corresponding to the navicular bone of the wearer and has a portion overlapping the Chopard joint of the wearer. It is preferable to span the inside and outside of the upper 2 . The first end 4a of the tightening member 4 is connected to a position corresponding to the navicular bone, and the second end 4b is connected to the outside of the upper 2, so that the tightening member 4 is in a tensioned state and is attached to the upper 2. bridged over.

The Chopard joint is a joint between the cuboid and navicular bones and the calcaneus and talus bones, and the medial longitudinal arch is the arch extending from the talus via the navicular bone to the head of the first metatarsal. Since the navicular bone is positioned above and medially relative to the cuboid bone, when the foot touches the ground during walking or when standing without walking (the time when the foot touches the ground or stands is simply called " It is easy to become depressed when standing. Since the first end 4a of the tightening member 4 is connected to a position corresponding to the navicular bone by joining means such as suturing, and the tightening member 4 is laid so as to overlap the Chopard joint, the tightening member is in a tensioned state. 4 pulls up the navicular bone, thereby suppressing the sinking of the navicular bone of the wearer. For this reason, the medial longitudinal arch of the wearer wearing the shoes of the present invention can be maintained, and the wearer's feet are in a neutral position when standing (the neutral position is where the bones of the foot are in their original positions, It can be corrected so that the structure is in a state where there is no distortion).

A specific configuration of the tightening member 4 is not particularly limited. The tightening member 4 may be composed of, for example, a flat belt-like member, or may be composed of a string-like member. For example, the tightening member 4 has a first belt-shaped body 41, a second belt-shaped body 42, and a buckle 43 consisting of a male die 431 and a female die 432 that engages with the male die 431. and may have a two-hole plate 44 or the like. The tightening member 4 may be elastic or non-elastic, but in the illustrated example, an elastic one is used.
FIG. 9 shows a state in which tightening by the tightening member 4 is released.
A first end portion (first end portion 4a of the tightening member 4) of the first band-shaped body 41 is connected to a position corresponding to the navicular bone of the upper 2 or the midsole portion 13 by joining means such as suture, and A male mold 431 of the buckle 43 is connected to the second end of the strip 41 . Further, the end of the two-hole plate 44 is connected to the end 21a of the outer piece 21 of the metatarsal region by joining means such as stitching. The second end of the second belt-shaped body 42 is connected to the end 22a of the inner piece 22 of the metatarsal region by joining means such as suture, and the second belt-shaped body 42 is inserted through the two holes of the two-hole plate 44. After being turned over, the female mold 432 of the buckle 43 is connected to the first end thereof. According to such a configuration, the second end portion 4b of the tightening member 4 is equivalent to being connected to the outer piece portion 21 via the two-hole plate 44. As shown in FIG. Therefore, by engaging the male 431 and female 432 and closing the buckle 43, the clamping member 4 between the first end 4a and the second end 4b, as shown in FIGS. becomes tense. Due to the tension of the tightening member 4, the space between the outer piece 21 and the inner piece 22 is narrowed, the shoe opening is made smaller, and the middle and rear foot parts are brought into close contact with the talonavicular joints of the wearer. It has the effect of maintaining the medial longitudinal arch.

When the tightening member 4 has band-shaped bodies (for example, the first band-shaped body 41 and the second band-shaped body 42), the width of the band-shaped bodies is not particularly limited. preferably broad. The width of the tightening member 4 (the width of the first band 41 and the second band 42) is, for example, 15 mm or more, preferably 20 mm or more, and more preferably 25 mm or more. Although there is no particular upper limit for the width of the tightening member 4, a practical numerical value is 70 mm or less, preferably 60 mm or less.
As described above, the first end 4a of the clamping member 4 is connected to a position corresponding to the navicular bone by suturing or the like. It is effective that the angle α between the connecting portion 4c of 4a and the horizontal plane is 5 degrees or more and 85 degrees or less, preferably 40 degrees or more and 70 degrees or less (the angle α is shown in FIG. 9). reference).

As shown in FIG. 3 , a stitch portion 23 extending in the inward and outward direction is formed in the vertical middle portion of the rear surface portion 27 of the rear leg portion of the upper 2 . The stitch portion 23 is formed by stitching the first sheet 14 and the second sheet 15 together. In the illustrated example, since the upper 2 is composed of a combination of a plurality of parts, as will be described later, the stitched portion 23 is formed by stitching the edge of the first sheet 14 and the edge of the second sheet 15 together. ing. However, depending on the shape of the parts that make up the upper 2, the stitch portion 23 stitches the surfaces of the first sheet 14 and the second sheet 15 (rather than stitching the edges of the first and second sheets 14 and 15). It may also be formed by
The stitched portion 23 is preferably formed at a position corresponding to the most projecting portion of the calcaneus (upper end of protuberance of the talus) or above it. By arranging the stitch portion 23 extending in the medial and lateral directions at the most protruding portion of the calcaneus or above it, the extension of the rear surface portion 27 of the rear foot portion of the upper 2 can be suppressed. With this stitch portion 23 as a reference, an outer heel cushion portion 61A and an inner heel cushion portion 61B are arranged below the rear surface portion 27, and an outer auxiliary cushion portion 52A and an inner auxiliary cushion portion 52B are arranged above the rear surface portion 27. are placed.
Instead of stitching the stitched portion 23, the same portion as the stitched portion may be thermally compressed (not shown). A counter portion may be provided below the rear surface portion 27 instead of the stitch portion 23 or in combination with the stitch portion 23 (not shown). The counter portion is formed from a thin sheet material that is relatively hard and has excellent mechanical strength. By providing the counter portion in the lower portion (between the stitch portion 23 and the sole 1 in FIG. 3) of the rear surface portion 27 of the rear leg portion, the same effect as that of the stitch portion 23 can be obtained.

Two inner and outer protrusions 24A and 24B (an outer protrusion 24A and an inner protrusion 24A) are provided above the rear foot portion of the upper 2 with the vertical line passing through the shoe center axis as the reference line in the rear view shown in FIG. A projecting portion 24B) is formed. Between the outer projecting portion 24A and the inner projecting portion 24B is a recessed portion 25 that is recessed downward toward the reference line. This recessed portion 25 generally corresponds to the Achilles tendon and its upper portion when the wearer wears the shoe.
The outward projecting portion 24A extends forward, preferably diagonally forward and upward, in a side view shown in FIG. A gap G, which is open to the front, is formed between the forwardly extending outer projecting portion 24A and the side portion 26 of the rear leg portion. The inner protruding portion 24B extends forward, preferably diagonally forward and upward, in the side view shown in FIG. Between the forwardly extending inner protruding portion 24B and the side portion 26 of the rear foot portion, a gap G is similarly formed with an open front. By having the opened gap G, the inner protruding part 24B and the outer protruding part 24A can swing following the movement of the wearer's ankle (swing is indicated by arrows in FIGS. 1 and 2). show).
Further, the outline of the rear surface portion 27 of the rear leg portion of the upper 2 in a side view is inclined as shown in FIGS. 1 and 2 . The angle β formed between the outline of the rear surface portion 27 in a side view and the horizontal plane is not particularly limited as long as it is an acute angle, and is, for example, 40 degrees or more and 80 degrees or less, preferably 40 degrees or more and 60 degrees or less (angle β see Figure 2).

The upper 2 has an outer ankle cushion portion 51A, an outer auxiliary cushion portion 52A, an inner ankle cushion portion 51B, and an inner auxiliary cushion portion 52B, and preferably further includes an outer heel cushion portion 61A and an inner heel cushion portion 61B. It preferably has an arch cushion portion 62 . Moreover, it is preferable that the upper 2 is provided with a base cushion portion 63 in order to improve the wearing comfort of the wearer. Hereinafter, the base cushion portion 63 of the upper 2 will be referred to as the "upper base cushion portion 63", and each cushion portion such as the inner ankle cushion portion 51B provided in the upper 2 will be collectively referred to as the "upper cushioning material". The upper cushioning material will be described in detail in <Cushion section> below.
The layer structure of the upper 2 may be a single-layer structure (excluding the upper cushioning material), or a multi-layer structure of two or more layers. The upper 2 preferably has the upper base cushion portion 63 as described above, and preferably has a lining material and an exterior material. For example, the upper 2 has a first sheet 281, a second sheet 282, and an upper cushioning material interposed between the first sheet 281 and the second sheet 282, as shown in FIGS. . The first sheet 281 of the upper 2 serves as a lining material with which the wearer's feet are in contact. The second sheet 282 of the upper 2 serves as an exterior material forming the outer surface of the upper 2 . A space is formed between the first seat 281 and the second seat 282 by connecting the peripheral edge portions of the first seat 281 and the second seat 282 by sewing or the like, and the upper base cushion portion 63 and the upper base cushion portion 63 are formed in the space. An upper cushioning material such as the inner ankle cushion portion 51B is enclosed.
The first sheet 281 and the second sheet 282 constituting the upper 2 are the same as the first sheet 14 and the second sheet 15 described in the section <Sole> above, so please refer to it. However, the first sheet 281 and the second sheet 282 that make up the upper 2 may be made of the same material as the first sheet 14 and the second sheet 15 that make up the sole 1, or may be made of different materials independently. There may be.

<Cushion part>
Depending on the type, the sole cushioning material and the upper cushioning material of the present invention follow the movement of the wearer's foot to bring the shoe into close contact with the foot to improve the fit and comfort of the wearer. and bring the foot to a neutral position.
Each cushion part is formed of a massive elastic body having softness, flexibility and resilience. Each cushion part may be independently formed of one massive elastic body, or may be formed of a plurality of elastic bodies in which two or more massive elastic bodies are connected. The flexibility refers to the property of being easily deformed when an external force (load) is applied, and the resilience refers to the property of substantially returning to its original shape when the external force is removed. Examples of the massive elastic body include sponges and cotton-like lumps in which fibers are randomly laminated, and sponges are preferably used. A sponge is a lump having closed cells or open cells and having flexibility and resilience. Examples of sponges include foams such as synthetic resins, rubbers, and elastomers.
For the sponge constituting the cushion portion, for example, a sponge having an F hardness of 20 or more and 95 or less, preferably an F hardness of 45 or more and 80 or less can be used. The F hardness can be measured using an Asker rubber hardness meter F type (manufactured by Kobunshi Keiki Co., Ltd.). As will be described later, the cuboid under-bone cushion portion 31 having a hardness higher than that of the under-heel cushion portion 32 is configured using a sponge having a hardness exceeding the above range. Examples of sponges having a hardness exceeding the range include sponges suitable for measurement with a C hardness (ASKER rubber hardness tester C type (manufactured by Kobunshi Keiki Co., Ltd.)). F hardness is suitable for measuring softer sponges than C hardness.

[1] Sole cushioning material (lower heel cushion portion 32, lower cuboid cushion portion 31, sole base cushion portion 33)
The under-heel cushion part 32 is provided at the rear foot region including the rear edge of the sole 1, the under-cuboid cushion part 31 is provided at the midfoot region of the sole 1, and the sole base cushion part 33 is provided at the under-heel cushion. It is provided over substantially the entire sole 1 excluding the range where the portion 32 and the cuboid sub-bone cushion portion 31 are provided.
FIG. 10 is a plan view showing for reference the positional relationship between the lower heel cushion portion 32, the lower cuboid cushion portion 31, and the foot bone, and FIG. Fig. 12 is a side view seen from the outside showing the positional relationship between the outer ankle cushion portion 51A, the outer auxiliary cushion portion 52A, the outer heel cushion portion 61A, and the foot bone for reference. Fig. 12 shows the lower heel cushion portion 32 and the inner ankle cushion portion 51B. 4 is a side view seen from the inside showing for reference the positional relationship between the inner auxiliary cushion portion 52B, the inner heel cushion portion 61B, and the foot bone; FIG. In FIG. 10, the foot bones are indicated by one-dot chain lines, the outline of the sole 1 is indicated by two-dot chain lines, and each cushion portion is indicated by thick solid lines. 11 and 12, the contours of the foot bones and the foot are indicated by dashed-dotted lines, the contours of the shoe 100 are indicated by dashed-two dotted lines, and the cushion portions are indicated by thick solid lines.
In this specification, the positional relationship between each cushion part and the leg bone is based on the state in which the wearer puts on the shoes and stands straight. Before the wearer puts on the shoes, the sole cushioning material is in an uncompressed state as shown in FIG. 6, but when the wearer puts on the shoes, the sole cushioning material is in a compressed state due to the downward load. Based on this state, the outer ankle cushion portion 51A, the inner ankle cushion portion 51B, the outer heel cushion portion 61A, and the inner heel cushion portion 61B are arranged at predetermined positions with respect to the foot bone.

10 to 12, in relation to the wearer's ankle bone, the under-heel cushion part 32 is arranged corresponding to the lower part of the wearer's heel bone, and the cuboid under-bone cushion part 31 It is positioned correspondingly below the human cuboid bone. In the present embodiment, the hardness of the cuboid underbone cushion portion 31 is higher than the hardness of the heel underside cushion portion 32 . The fact that the hardness of the subcubic bone cushion part 31 is higher than the hardness of the heel cushion part 32 means that the upper surface of the cuboid cushion part 31 and the upper surface of the heel cushion part 32 (each upper surface is a surface that comes into contact with the foot). Second, when the load is applied under the same conditions, the degree of compression of the subcubic bone cushion part 31 is clearly smaller than the compression degree of the heel cushion part 32 . From the viewpoint of effectively supporting the cuboid bone from below by the cushion part 31 under the cuboid bone, the difference in height when both the cushion parts 31 and 32 are compressed by wearing shoes is 2.5 mm or more and 4 mm or less. It is preferable that the difference in hardness between the two cushion portions 31 and 32 is set so that the hardness is preferably 3 mm or more and 3.5 mm or less. Since the height difference when compressed is within the above range, the cuboid bone can be supported from below without the cushion part 31 under the cuboid bone excessively pressing against the cuboid bone. The height difference is the uppermost edge of the upper surface of the lower cuboid cushion part 31 and the lowermost edge of the upper surface of the lower heel cushion part 32 in a side view when the lower heel cushion part 32 and the lower cuboid cushion part 31 are compressed. It means the drop of The cuboid cushion part 31 and the heel cushion part 32 having different hardnesses as described above can be configured by using massive elastic bodies with different hardnesses, such as sponges with different hardnesses.

With respect to the foot bone, the inferior edge of the cuboid is located above the inferior edge of the calcaneus, and the lateral longitudinal arch of the foot extends from the calcaneus through the cuboid to the head of the fifth metatarsal. . Since a load is applied when the wearer puts on the shoes, the lower heel cushion portion 32 and the lower cuboid cushion portion 31 are compressed and deformed from the state shown in FIG. 6 as shown in FIGS. The cuboid under-bone cushion part 31 with a higher squab has a smaller degree of compression than the under-heel cushion part 32. - 特許庁Therefore, when the wearer is standing, the cuboid bone located above the calcaneus can be supported from below by the lower cuboid cushion part 31 . The support by the cuboid sub-bone cushion part 31 can support each bone that bears the outer longitudinal arch, and correct the wearer's foot in a neutral position when standing.

For example, as shown in FIG. 10, the shape of the lower heel cushion portion 32 in a plan view is defined by an arc edge along the arc edge shape of the rear foot portion of the sole 1 and a straight edge extending in the entire medial-lateral direction. The shape of the cuboid subbone cushion part 31 in plan view is a substantially triangular shape defined by side edges along the outer edge shape of the rear foot portion of the sole 1 and inclined edges extending in the medial and lateral directions. is. Therefore, the anteroposterior length of the cuboid subbone cushion portion 31 decreases from the outside toward the inside. In the present embodiment, the cuboid sub-bone cushion portion 31 is formed up to the middle portion in the medial-lateral direction (not reaching the inner edge of the sole 1).
The under-heel cushion part 32 is arranged near the lower part of the calcaneus and the lower part of the talus. The cuboid subbone cushion part 31 is arranged from below the cuboid bone to below part of the calcaneus. The subcubic cushion part 31 preferably does not overlap the posterior part of the fifth metatarsal bone, and more preferably is arranged so as not to overlap the posterior parts of the first to fifth metatarsal bones. By arranging the subcubic bone cushion part 31 below the cuboid bone without including the metatarsal bone, the cuboid bone can be effectively supported.
As shown in FIG. 10, the cuboid subbone cushion portion 31 preferably includes a position that is 35% to 36% from the rear edge when the total length of the shoe is 100%. The total length of the shoe is defined by the intersection of the front edge 10a of the contour 10 and the shoe center axis L when the foot accommodating space is viewed in plan, the rear edge 10b of the contour 10 when the foot accommodating space is viewed in plan, and the shoe. and the intersection point of the center axis L. In FIG. 10, the outline 10 is indicated by a two-dot chain line.

5 and 6, a second sheet 15 is connected to a sole portion (midsole portion 12) via bonding means 16 such as an adhesive, and a bonding means 17 such as an adhesive is attached to the second sheet 15. A first massive elastic body 91 such as a sponge having a predetermined thickness is connected via the first elastic lump 91, and a sponge having a predetermined thickness is attached to the calcaneus region of the first elastic massive body 91 via a bonding means (not shown) such as an adhesive. A second elastic block 92 such as a sponge is connected to the first elastic block 91, and a third elastic block 93 such as a sponge having a predetermined thickness is attached to the cubic bone region of the first elastic block 91 via a bonding means (not shown) such as an adhesive. are connected. In this case, the under-heel cushion part 32 is composed of the second massive elastic body 92 and the first massive elastic body 91 therebelow, and the under-cube-bone cushion part 31 is composed of the third massive elastic body 93 and the third massive elastic body 91 therebelow. The sole base cushion portion 33 is composed of only the first massive elastic body 91 . The upper surface of each cushion portion is covered with a first sheet 14 serving as a lining material, and the peripheral edge portions of the first sheet 14 and the second sheet 15 are connected by joining means such as stitching. The first seat 14, which serves as a lining material, may be connected to each cushion portion, but from the viewpoint of comfort, the first seat 14 is not connected to each cushion portion and is independent from each cushion portion. It is preferable to be able to move

The thickness of the lower heel cushion portion 32 is appropriately set, and is, for example, 3 mm or more and 25 mm or less, preferably 3 mm or more and 20 mm or less. The thickness of the cuboid subbone cushion portion 31 is equal to or greater than the thickness of the heel cushion portion 32 . The thickness of the sole base cushion portion 33 is considerably smaller than that of the lower heel cushion portion 32, and is, for example, 2 mm or more and 5 mm or less.
The thickness of the sole cushioning material such as the under-heel cushion portion 32 is based on the state in which the wearer does not wear the shoes (uncompressed state). Further, when each cushion portion such as the under-heel cushion portion 32 is formed of multiple elastic bodies in which two or more massive elastic bodies are connected, the thickness refers to the thickness of the multiple elastic bodies. For example, in the illustrated example, the under-heel cushion part 32 is composed of the second massive elastic body 92 and the first massive elastic body 91. In this case, the thickness of the under-heel cushion part 32 and the thickness of the first massive elastic body 91 .

[2] Upper cushioning material (outer ankle cushion portion 51A, outer auxiliary cushion portion 52A, inner ankle cushion portion 51B, inner auxiliary cushion portion 52B, outer heel cushion portion 61A, inner heel cushion portion 61B, arch cushion portion 62)
The outer ankle cushion portion 51A, the outer auxiliary cushion portion 52A, the inner ankle cushion portion 51B, the inner auxiliary cushion portion 52B, the outer heel cushion portion 61A, and the inner heel cushion portion 61B are provided in the rear foot portion of the upper 2, and the arch cushion portion 62 is , and the upper base cushion portion 63 is provided on substantially the entire upper 2 except for the range where each cushion portion such as the inner ankle cushion portion 51B is provided.

Referring to FIG. 11, in relation to the foot bones of the wearer, the lateral ankle cushion portion 51A is arranged corresponding to the lower lateral ankle of the wearer.
As shown in FIG. 1, the outer ankle cushion portion 51A is provided along the upper edge of the side portion 26 of the rear leg portion of the upper 2 and extends generally in the front-rear direction in a side view. The outer ankle cushion portion 51A is formed narrower toward the front end portion 511A. However, the ankle cushion portion 51A may have a substantially uniform width in the front-rear direction. A front end portion 511A of the outer ankle cushion portion 51A is formed in a sharp shape. However, the front end portion 511A of the outer ankle cushion portion 51A may be formed in an arc shape or the like.
The external auxiliary cushion portion 52A extends forward and upward from the rear side of the upper 2 in a side view. The front end portion 521A of the external auxiliary cushion portion 52A extends above the external ankle cushion portion 51A so as to form a gap G with the external ankle cushion portion 51A. The outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A may be independent of each other, but preferably the outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A are integrally formed.
As shown in FIGS. 1 and 7, the external auxiliary cushion portion 52A is provided from the outward projecting portion 24A of the upper 2 to the rear surface portion 27 of the rear leg portion. Since the external auxiliary cushion part 52A is provided up to the rear surface part 27 in this way, the rear part of the outer malleolus can be supported so as to be wrapped. As described above, the outward projecting portion 24A of the upper 2 swings following the movement of the foot, and the external auxiliary cushion portion 52A can also follow the outward projecting portion 24A. Therefore, as shown in FIG. 11, when the wearer puts on the shoes, the external auxiliary cushion portion 52A moves slightly rearward together with the external projecting portion 24A, so that the gap G between the external ankle cushion portion 51A and the external ankle cushion portion 51A expands slightly. . Referring to FIG. 11, in relation to the foot bones of the wearer, the external auxiliary cushion portion 52A generally corresponds to the posterior and upper lateral ankles of the wearer.

Since the ankle cushion part 51A supports the periphery of the lower part of the malleolus (the periphery of the junction between the tarsus and the fibula), the junction between the tarsus and the fibula is stabilized. Further, when the foot moves, the outer ankle cushion part 51A is compressed or elastically restored and comes into close contact with the foot, thereby preventing the creation of a space at the joint during walking. In addition, since the external auxiliary cushion part 52A swings according to the movement of the ankle during walking, it is possible to prevent the formation of spaces behind and above the outer ankle of the wearer during walking. Therefore, it is possible to provide the shoes 100 with excellent fit.

A gap G formed between the outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A is a space between an edge 512A of the outer ankle cushion portion 51A and an edge 522A of the outer auxiliary cushion portion 52A facing each other. The edge 522A of the external auxiliary cushion portion 52A forming the gap G extends obliquely forward and upward from the rear side in a side view (is obliquely inclined). Since the external auxiliary cushion part 52A extends obliquely forward and upward, the external auxiliary cushion part 52A can be easily brought into close contact with the foot. The angle between the edge 522A of the external auxiliary cushion portion 52A forming the gap G and the horizontal plane is not particularly limited as long as it is an acute angle. When the shoes are put on, there is a possibility that the support of the outer ankle by the outer auxiliary cushion portion 52A (outer projecting portion 24A) may be lowered. From this point of view, the angle γ (the angle γ is shown in FIG. 1) formed between the edge 522A of the external auxiliary cushion portion 52A forming the gap G and the horizontal plane is, for example, 40 degrees or more and 80 degrees or less, preferably 40 degrees. 60 degrees or less. Since the external auxiliary cushion part 52A can be deformed when the wearer wears shoes and walks, etc., the position and shape of the external auxiliary cushion part 52A are different when the wearer is not wearing shoes (see FIG. 1). etc.).
The size of the gap G may be substantially uniform toward the front. In this case, the edge 512A of the outer ankle cushion portion 51A and the edge 522A of the outer auxiliary cushion portion 52A forming the gap G are substantially parallel as shown in FIG. In addition, the gap G may widen or narrow toward the front.
In the illustrated example, the outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A are integrally formed, and the edge 512A of the outer ankle cushion portion 51A and the edge 522A of the outer auxiliary cushion portion 52A form a substantially U shape. The gap G is formed. The outer ankle cushion part 51A and the outer auxiliary cushion part 52A are integrally formed, and their edges form a substantially U-shape to form a gap G, so that the outer auxiliary cushion moves following the movement of the foot. 52 A of cushion parts become easy to return to an original position. Specifically, when the external auxiliary cushion portion 52A moves rearward as the ankle is tilted rearward, the integrally formed outer ankle cushion portion 51A and the external auxiliary cushion portion 52A are deformed. After that, when the ankle is tilted forward, the restoring action associated with the deformation makes it easier for the external auxiliary cushion portion 52A to move forward (easier to return to its original state). Therefore, the external auxiliary cushion part 52A can more easily follow the movement of the ankle, and can effectively prevent the formation of spaces behind and above the ankle of the wearer. Hereinafter, the integrally formed outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A may be collectively referred to as the "outer integrated cushion portion 7A".

Referring to FIG. 12, in relation to the foot bones of the wearer, the inner ankle cushion portion 51B is arranged corresponding to the lower inner ankle of the wearer in a side view.
As shown in FIG. 2, the inner ankle cushion portion 51B is provided along the upper edge of the side portion 26 of the rear leg portion of the upper 2 and extends generally in the front-rear direction in a side view. The inner ankle cushion portion 51B is formed to be narrower toward the front end portion 511B. However, the inner ankle cushion portion 51B may have a substantially uniform width in the front-rear direction. A front end portion 511B of the inner ankle cushion portion 51B is formed in a pointed shape. However, the front end portion 511B of the inner ankle cushion portion 51B may be formed in an arc shape or the like.
The inner auxiliary cushion portion 52B extends forward and upward from the rear side of the upper 2 in a side view. A front end portion 521B of the inner auxiliary cushion portion 52B extends above the inner ankle cushion portion 51B so as to form a gap G with the inner ankle cushion portion 51B. The inner ankle cushion portion 51B and the inner auxiliary cushion portion 52B may be independent of each other, but preferably the inner ankle cushion portion 51B and the inner auxiliary cushion portion 52B are integrally formed.
As shown in FIGS. 2 and 7, the inner auxiliary cushion portion 52B is provided from the inner projecting portion 24B of the upper 2 to the rear surface portion 27 of the rear leg portion. Since the inner auxiliary cushion portion 52B is provided up to the rear surface portion 27 in this way, it is possible to support the inner ankle so as to wrap it. As described above, the inner projecting portion 24B of the upper 2 swings following the movement of the foot, and the inner auxiliary cushion portion 52B can also follow the inner projecting portion 24B. Therefore, as shown in FIG. 12, when the wearer puts on the shoes, the inner auxiliary cushion portion 52B slightly moves rearward together with the inner projecting portion 24B, and the gap G between the inner ankle cushion portion 51B and the inner ankle cushion portion 51B expands slightly. . Referring to FIG. 12, in relation to the foot bones of the wearer, the inner auxiliary cushion part 52B generally corresponds to the rear and upper inner ankles of the wearer.

The inner ankle cushion part 51B supports the lower part of the inner ankle (around the joint between the tarsus and the tibia), so that the joint between the tarsus and the tibia is stabilized. In addition, when the foot moves, the inner ankle cushion part 51B is compressed or elastically restored and comes into close contact with the foot. In addition, since the inner auxiliary cushion part 52B swings according to the movement of the foot during walking, it is possible to prevent the formation of spaces behind and above the inner ankle of the wearer even when walking. Therefore, it is possible to provide the shoes 100 with excellent fit.

A gap G formed between the inner ankle cushion portion 51B and the inner auxiliary cushion portion 52B is a space between the facing edge 512B of the inner ankle cushion portion 51B and the edge 522B of the inner auxiliary cushion portion 52B. The edge 522B of the inner auxiliary cushion portion 52B that forms the gap G extends obliquely forward and upward from the rear side in a side view (is obliquely inclined). Since the inner auxiliary cushion part 52B extends obliquely forward and upward, the inner auxiliary cushion part 52B can be easily brought into close contact with the foot. The angle formed by the edge 522B of the inner auxiliary cushion portion 52B forming the gap G and the horizontal plane is not particularly limited as long as it is an acute angle. Yes, preferably 40 degrees or more and 60 degrees or less. In addition, since the inner auxiliary cushion portion 52B can be deformed when the wearer wears shoes and walks, the position and shape of the inner auxiliary cushion portion 52B are different when the wearer is not wearing shoes (see FIG. 2, etc.). ) are explained on the basis of
The size of the gap G may be substantially uniform toward the front. In this case, the edge 512B of the inner ankle cushion portion 51B and the edge 522B of the inner auxiliary cushion portion 52B forming the gap G are substantially parallel as shown in FIG. In addition, the gap G may widen or narrow toward the front.
In the illustrated example, the inner ankle cushion portion 51B and the inner auxiliary cushion portion 52B are integrally formed, and the edge 512B of the inner ankle cushion portion 51B and the edge 522B of the inner auxiliary cushion portion 52B form a substantially U shape. The gap G is formed. The inner ankle cushion portion 51B and the inner auxiliary cushion portion 52B are integrally formed, and their edges form a substantially U-shape to form a gap G. For the same reason as the auxiliary cushion part 52A, the inner auxiliary cushion part 52B that has moved following the movement of the foot can easily return to its original position. Therefore, the inner auxiliary cushion part 52B can more easily follow the movement of the ankle, and can effectively prevent the formation of spaces behind and above the inner ankle of the wearer. Hereinafter, the integrally formed inner ankle cushion portion 51B and the inner auxiliary cushion portion 52B may be collectively referred to as the "inner integrated cushion portion 7B".

The outer integrated cushion portion 7A (the outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A) and the inner integrated cushion portion 7B (the inner ankle cushion portion 51B and the inner auxiliary cushion portion 52B) may be independent of each other, or may be connected. It may be connected via the cushion portion 64 . In order to provide cushioning properties between the outer integrated cushion portion 7A and the inner integrated cushion portion 7B, the outer integrated cushion portion 7A and the inner integrated cushion portion 7B are connected via the connecting cushion portion 64. is preferred.
FIG. 13 is a reference perspective view for stereoscopically grasping the structures of the outer integrated cushion portion 7A, the inner integrated cushion portion 7B, the connecting cushion portion 64, the outer heel cushion portion 61A and the inner heel cushion portion 61B. This FIG. 13 is a reference view of the rear leg portion of the upper 2, which is substantially U-shaped in plan view and inclined in side view, opened for convenience and is viewed from the direction of arrow XIII in FIG. . The reference lines in FIG. 13 generally correspond to the reference lines in FIG.

6, 7 and 13, the connection cushion part 64 is interposed between the outer integrated cushion part 7A and the inner integrated cushion part 7B to connect both parts. The thickness of the connection cushion portion 64 is smaller than the thickness of each of the outer integrated cushion portion 7A and the inner integrated cushion portion 7B. Since the connecting cushion part 64 corresponds to the wearer's Achilles tendon, the connecting cushion part 64 (upper 2) can be prevented from excessive contact with the Achilles tendon due to the small thickness of the connecting cushion part 64 . In particular, it is preferable that the connection cushion portion 64 has a thickness difference in the vertical direction. For example, as shown in the drawing, the connecting cushion portion 64 preferably has a thin portion 641 extending downward and a thick portion 642 below the thin portion 641 . Using the thick portion 642 as a reference, the thin portion 641 can be said to be formed by cutting out part of the thick portion 642 as shown in FIG. The thin portion 641 of the connecting cushion portion 64 is provided over the entire vertical direction of the outer auxiliary cushion portion 52A and the inner auxiliary cushion portion 52B, or extends slightly downward beyond the outer auxiliary cushion portion 52A and the inner auxiliary cushion portion 52B. Since the upper portion of the connection cushion portion 64 is the thin portion 641, the rear leg portion of the upper 2 can be easily curved along the reference line. In particular, the upper portion of the connection cushion portion 64 is the thin portion 641 and the lower portion is the thick portion 642, thereby preventing the connection cushion portion 64 from excessively hitting the Achilles tendon. Note that even when the outer integrated cushion portion 7A (the outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A) and the inner integrated cushion portion 7B (the inner ankle cushion portion 51B and the inner auxiliary cushion portion 52B) are independent of each other, both No cushion part is interposed between the parts 7A and 7B, and the upper 2 can be prevented from excessive contact with the Achilles tendon.

Referring to FIG. 11, in relation to the foot bone of the wearer, the outer heel cushion portion 61A is arranged corresponding to the outer upper portion of the wearer's calcaneus in a side view.
As shown in FIG. 1, the outer heel cushion portion 61A is provided between the outer integrated cushion portion 7A and the under-heel cushion portion 32 in a side view, and extends generally in the front-rear direction. It is preferable that the outer heel cushion portion 61A is formed to be narrower toward the front end portion 611A. A front end portion 611A of the outer heel cushion portion 61A is formed in a pointed shape. However, the front end portion 611A of the outer heel cushion portion 61A may be formed in an arc shape or the like.
1, 3 and 8, the outer heel cushion portion 61A is provided from the side surface portion 26 to the rear surface portion 27 of the rear foot portion of the upper 2. As shown in FIGS. Since the outer heel cushion portion 61A is provided from the side surface portion 26 to the rear surface portion 27 in this manner, it is possible to wrap and support the outer upper portion of the calcaneus. As shown in FIG. 3, the outer heel cushion portion 61A is preferably formed to narrow toward the rear end portion 612A. A rear end portion 612A of the outer heel cushion portion 61A is formed in a pointed shape. However, the rear end portion 612A of the outer heel cushion portion 61A may be formed in an arc shape or the like.

The outer heel cushion part 61A supports the upper part of the outer heel, and when the foot moves, the outer heel cushion part 61A is compressed or elastically restored to be in close contact with the foot. It is possible to prevent a space from occurring between Therefore, it is possible to provide the shoes 100 with excellent fit.
From the viewpoint of preventing the outer heel cushion part 61A from excessively contacting the calcaneus while making it difficult to create a space around the calcaneus, as shown in FIG. It is preferably positioned above the highest protruding portion of the calcaneus. In other words, the outer heel cushion part 61A is preferably arranged corresponding to the upper lateral side of the calcaneus so as not to overlap the most protruding part of the calcaneus.

Referring to FIG. 12, in relation to the foot bone of the wearer, the inner heel cushion portion 61B is arranged corresponding to the inner upper portion of the wearer's calcaneus in a side view.
As shown in FIG. 2, the inner heel cushion portion 61B is provided between the inner integrated cushion portion 7B and the lower heel cushion portion 32 in a side view, and extends generally in the front-rear direction. The inner heel cushion portion 61B is preferably formed to narrow toward the front end portion 611B. A front end portion 611B of the inner heel cushion portion 61B is formed in a pointed shape. However, the front end portion 611B of the inner heel cushion portion 61B may be formed in an arc shape or the like.
2, 3 and 8, the inner heel cushion portion 61B is provided from the side surface portion 26 to the rear surface portion 27 of the rear foot portion of the upper 2. As shown in FIGS. Since the inner heel cushion portion 61B is provided from the side surface portion 26 to the rear surface portion 27 in this manner, it is possible to wrap and support the inner upper portion of the calcaneus. As shown in FIG. 3, it is preferable that the inner heel cushion portion 61B is narrowed toward the rear end portion 612B. A rear end portion 612B of the inner heel cushion portion 61B is formed in a pointed shape. However, the rear end portion 612B of the inner heel cushion portion 61B may be formed in an arc shape or the like.

The inner heel cushion part 61B supports the upper part of the inner heel, and even when the foot moves, the inner heel cushion part 61B is compressed or elastically restored and comes into close contact with the foot. It is possible to prevent a space from occurring between Therefore, it is possible to provide the shoes 100 with excellent fit.
From the viewpoint of preventing the inner heel cushion part 61B from excessively contacting the calcaneus while making it difficult to create a space around the calcaneus, as shown in FIG. It is preferably positioned above the highest protruding portion of the calcaneus. In other words, the inner heel cushion part 61B is preferably arranged in correspondence with the inner upper part of the calcaneus so as not to overlap the most protruding part of the calcaneus.

When the outer heel cushion portion 61A and the inner heel cushion portion 61B extend to the rear surface portion 27 of the rear foot portion of the upper 2, the rear ends 612A and 612B of the outer heel cushion portion 61A and the inner heel cushion portion 61B are separated from each other. may be connected. However, from the viewpoint of preventing excessive contact with the lower part of the Achilles tendon, the outer heel cushion part 61A and the inner heel cushion part 61B are independent of each other, or the outer heel cushion part 61A and the inner heel cushion part 61B are separated from each other. It is preferable that they are connected through a connecting cushion portion having a small thickness.
For example, as shown in FIGS. 8 and 13, the outer heel cushion portion 61A and the inner heel cushion portion 61B are connected via an upper base cushion portion 63 having a smaller thickness than them. That is, the upper base cushion portion 63 between the outer heel cushion portion 61A and the inner heel cushion portion 61B corresponds to a connection cushion portion that connects the outer heel cushion portion 61A and the inner heel cushion portion 61B.

In addition, the outer heel cushion portion 61A is independent of any of the inner ankle cushion portion 51B, the inner auxiliary cushion portion 52B, the outer ankle cushion portion 51A, and the outer auxiliary cushion portion 52A, or the portions 51B, 52B, It is preferably connected to at least one selected from 51A and 52A via a connection cushion portion having a thickness smaller than that of the outer heel cushion portion 61A. The inner heel cushion portion 61B is independent of any of the inner ankle cushion portion 51B, the inner auxiliary cushion portion 52B, the outer ankle cushion portion 51A, and the outer auxiliary cushion portion 52A, or the portions 51B, 52B, 51A, It is preferably connected to at least one selected from 52A via a connecting cushion portion having a thickness smaller than that of the inner heel cushion portion 61B. Since the outer heel cushion portion 61A and the inner heel cushion portion 61B are independent from each other or connected via the connecting cushion portions having a small thickness in this way, the cushion portions 51B, 52B, 51A, and 52A do not affect the outer heel cushion portion 61A and the inner heel cushion portion 61B. The outer and inner ankles and the calcaneus can be appropriately supported by the outer heel cushion portion 61A and the inner heel cushion portion 61B.
In the illustrated example, a region (for example, stitch portion 23) having no cushion portion exists between the outer heel cushion portion 61A and the inner heel cushion portion 61B and each of the cushion portions 51B, 52B, 51A, and 52A. The outer heel cushion portion 61A, the inner heel cushion portion 61B and the respective cushion portions 51B, 52B, 51A and 52A are independent.

The arch cushion part 62 is arranged corresponding to the arch of the upper 2 . The arch cushion part 62 is provided from the middle foot part of the upper 2 to a part of the forefoot part. It should be noted that the arch of the foot is a portion from the sole to the inside, and strictly speaking, the arch cushion portion 62 is provided from the sole 1 to the upper 2 . By providing the arch cushion part 62, in cooperation with the tightening member 4, the medial longitudinal arch can be effectively maintained.

5 to 8, a fourth massive elastic body 94 such as a sponge having a predetermined thickness is connected to a second sheet 282 serving as an exterior material via a joining means 29 such as an adhesive. A fifth massive elastic body 95 such as a sponge having a predetermined thickness is connected to the forming regions of the outer integrated cushion portion 7A and the inner integrated cushion portion 7B of the body 94 via a joining means (not shown) such as an adhesive. A sixth massive elastic body 96 such as a sponge having a predetermined thickness is attached to the forming regions of the outer heel cushion portion 61A and the inner heel cushion portion 61B of the fourth elastic massive body 94 via a bonding means (not shown) such as an adhesive. , and a seventh elastic block 97 such as a sponge having a predetermined thickness is connected to the formation region of the arch cushion portion 62 of the fourth elastic block 94 via a bonding means (not shown) such as an adhesive. there is In this case, the outer integrated cushion portion 7A and the inner integrated cushion portion 7B are composed of the fourth massive elastic body 94 and the fifth massive elastic body 95, and the outer heel cushion portion 61A and the inner heel cushion portion 61B are composed of the fourth elastic body 94 and the fifth massive elastic body 95. The arch cushion part 62 is composed of the fourth elastic lump body 94 and the seventh elastic lump body 97, and the connection cushion part 64 is partially The upper base cushion portion 63 is composed of the fourth elastic lumps 94 alone. Each of these cushion portions is covered with a first sheet 281 serving as a lining material, and the peripheral edge portions of the first sheet 281 and the second sheet 282 are connected by joining means such as stitching. The first seat 281 as a lining material may be connected to each cushion, but from the viewpoint of comfort, the first seat 281 is not connected to each cushion and is independent from each cushion. It is preferable to be able to move
Note that the massive elastic body (cushion portion) may be connected to the first sheet 281 via a bonding means such as an adhesive.

The thicknesses of the outer ankle cushion portion 51A, the outer auxiliary cushion portion 52A, the inner ankle cushion portion 51B, and the inner auxiliary cushion portion 52B (the outer integrated cushion portion 7A and the inner integrated cushion portion 7B) are appropriately set. , 15 mm or more and 30 mm or less. The thickness of the connecting cushion portion 64 is smaller than the thickness of the outer ankle cushion portion 51A and the like as described above. The thickness of the thin portion 641 of the connecting cushion portion 64 is preferably 0.8 times or less the thickness of the outer ankle cushion portion 51A and the like, and the thickness of the thick portion 642 is 0.9 times the thickness of the outer ankle cushion portion 51A and the like. The following are preferred. The thickness of the outer heel cushion portion 61A and the inner heel cushion portion 61B is, for example, 15 mm or more and 30 mm or less. The thickness of the arch cushion portion 62 is, for example, 20 mm or more and 50 mm or less. The thickness of the upper base cushion portion 63 is, for example, 3 mm or more and 10 mm or less.
The thickness of the upper cushioning material such as the outer ankle cushion portion 51A is based on the state (uncompressed state) in which the wearer does not wear the shoes. Further, when each cushion portion such as the outer ankle cushion portion 51A is formed of a plurality of elastic bodies in which two or more massive elastic bodies are connected, the thickness refers to the thickness of the plurality of elastic bodies. For example, in the illustrated example, the outer ankle cushion portion 51A is composed of the fourth massive elastic body 94 and the fifth massive elastic body 95, and the thickness of the outer ankle cushion portion 51A in this case is the thickness of the fourth massive elastic body 94. and the thickness of the fifth massive elastic body 95 .

FIG. 14 is a developed reference perspective view of each part forming the upper 2 and the sole 1, and FIG. 15 is a developed reference plan view of each part. 14 and 15 do not show the parts forming the tightening member 4, and do not show the parts forming the outsole portion 11 and the midsole portion 12 of the sole 1. FIG.
Referring to FIG. 14, parts group P1 includes part P1-1 consisting of a first sheet formed in a predetermined shape, part P1-2 consisting of a second sheet formed in a predetermined shape, and upper base cushion portion 63. and parts P1-3. The part group P1 is assembled by connecting the peripheries of the parts P1-1 and P1-2 with the part P1-3 interposed therebetween by stitching or the like. The parts group P1 forms a part of the forefoot part and the middle foot part of the upper 2 .
The parts group P2 includes a part P2-1 consisting of a first sheet formed in a predetermined shape, a part P2-2 consisting of a second sheet formed in a predetermined shape, a heel cushion portion 32, a cuboid bone cushion portion 31, Part P2-3 consisting of the sole base cushion portion 33, the outer heel cushion portion 61A, the inner heel cushion portion 61B and the upper base cushion portion 63. The parts P2-1 and P2-2 are joined together by stitching or the like, with the parts P2-3 interposed therebetween, to assemble the parts group P2. The part group P2 forms the midsole portion 13 of the sole 1 and a part of the midfoot portion and the lower portion of the rearfoot portion of the upper 2 .
The parts group P3 includes a part P3-1 consisting of a first sheet formed in a predetermined shape, a part P3-2 consisting of a second sheet formed in a predetermined shape, an outer integrated cushion portion 7A, and an inner integrated cushion portion 7B. , the connection cushion portion 64, the arch cushion portion 62, and the part P3-3 composed of the upper base cushion portion 63. The part group P3 is assembled by connecting the peripheries of the part P3-1 and the part P3-2 with the part P3-3 interposed therebetween by stitching or the like. The part group P3 forms part of the middle foot region and the upper portion of the rear foot region of the upper 2 .

FIG. 15 shows connecting points between the assembled parts groups P1, P2, and P3. The edge connecting the points x1, x2 and x3 is connected to the edge connecting the points y9, y8 and y7 by sewing or the like. The edge connecting the points x6, x5, x4 and x3 is connected to the edge connecting the points z1, z2, z3 and z4 by sewing or the like. The edge connecting the points x1 and x6 is connected to the edge connecting the points y9 and y10 by sewing or the like. The edge connecting the points y7, y6 and y5 is connected to the edge connecting the points z4, z5 and z6 by sewing or the like. The edge connecting the points y5, y4 and y3 is connected to the edge connecting the points y1, y2 and y3 by stitching or the like. The edge connecting the points y1, y12 and y11 is connected to the edge connecting the points z6, z7 and z8 by sewing or the like.
By connecting the assembled part groups P1, P2, and P3 in this manner, the upper 2 and a part of the sole 1 (insole portion 13) can be formed.
14 and 15 are merely examples, and various shapes and combinations can be adopted for the parts forming the upper 2 and the sole 1 of the present invention.

In the shoe 100 of the present invention, as described above, the outer ankle cushion part 51A and the inner ankle cushion part 51B support the lower part of the outer ankle and the lower part of the inner ankle, and the outer auxiliary cushion part 52A and the inner auxiliary cushion part 52B support the rear part of the outer ankle and the upper part of the outer ankle. To support. Since the external auxiliary cushion part 52A and the internal auxiliary cushion part 52B are arranged with respect to the external ankle cushion part 51A and the internal auxiliary cushion part 51B with the gap G opened in front, the external auxiliary cushion part 52A and the internal auxiliary cushion part 52A The cushion part 52B swings according to the movement of the ankle. Therefore, when the foot moves during walking, it is difficult to create a space between the ankle and the shoe, and it is possible to provide the shoes 100 that are excellent in fit even during walking.

Hereinafter, another embodiment of the present invention will be described. In the description, the configuration and effects that are different from those of the above-described embodiment will be mainly described. may be omitted. Therefore, the configuration described in the first embodiment can be used for configurations that are not particularly detailed in the following several other embodiments.

[Second embodiment]
In the above-described first embodiment, the case where the cubical cushion portion 31 has a hardness higher than that of the heel cushion portion 32 and the thickness of the heel cushion portion 32 and the thickness of the cuboid cushion portion 31 are substantially the same was exemplified. However, the cuboid underbone cushion part 31 may protrude above the heel underbone cushion part 32 .
FIG. 16 shows the shoe 100 of the second embodiment. Referring to FIG. 16 , the upper surface of the cubical cushion part 31 is positioned higher than the upper surface of the lower heel cushion part 32 , and therefore the lower cuboid cushion part 31 is positioned higher than the lower heel cushion part 32 . protruded upwards.
The degree of protrusion of the cuboid subbone cushion portion 31 is appropriately set. The difference between the upper surface of the cuboid subbone cushion part 31 and the upper surface of the heel cushion part 32 is, for example, 2.5 mm or more and 4 mm or less, preferably 3 mm or more and 3.5 mm or less. Note that the drop is based on the state in which the wearer does not wear the shoes (non-compressed state).

By using the subcubic bone cushion part 31 having a thickness greater than the thickness of the underheel cushion part 32 , the subcubic bone cushion part 31 that protrudes upward from the underheel cushion part 32 can be configured. For example, the cuboid sub-bone cushion portion 31 having a thickness of 3 mm or more and 25 mm or less is used, and the heel-below cushion portion 32 having a thickness smaller than the thickness of the cuboid sub-bone cushion portion 31 by the above-mentioned difference is used.
In addition, the cuboid under-bone cushion part 31 having substantially the same thickness as the under-heel cushion part 32 can also be used. When using the cuboid sub-bone cushion portion 31 of substantially the same thickness, the cuboid sub-bone cushion portion 31 is positioned above the heel sub-bone cushion portion 32 by arranging a bottom raising spacer below the cuboid sub-bone cushion portion 31. can be protruded.
As in the present embodiment, even when the upwardly protruding subcubic bone cushion portion 31 is used, the cuboid bone located above the lower end of the calcaneus is replaced with the cuboid bone, as in the first embodiment. It can be supported from below by the lower cushion part 31 . Therefore, it is possible to support each bone responsible for the lateral longitudinal arch, and correct the wearer's feet so that they are in a neutral position when standing.

In this embodiment, the hardness of the cuboid cushion part 31 may be substantially the same as or higher than the hardness of the heel cushion part 32 . It is preferable that the hardness of the subcubic bone cushion part 31 and the hardness of the heel cushion part 32 are substantially the same, since this facilitates designing the degree of projection of the subcubic bone cushion part 31 .

[Third embodiment]
In the first embodiment, the cuboid sub-bone cushion part 31 does not reach the inner edge of the sole 1, but for example, as shown in FIG. may be extended by In this case, it is preferable that the length of the cubic subbone cushion portion 31 in the front-rear direction decreases from the outside toward the inside.
Since the cuboid bone can be supported by the subcubic bone cushion part 31 in this embodiment as well, the lateral longitudinal arch can be assisted.
When the subcubic bone cushion part 31 extends over the entire medial-lateral direction, the inner side of the cuboid subbone cushion part 31 supports the navicular bone from below. Since the plantar fascia can be prevented from being pushed up excessively, the subcubic bone cushion part 31 that can support the cuboid bone below without substantially overlapping the navicular bone as in the first embodiment is provided. preferable.

[Fourth embodiment]
In the above-described first embodiment, the shoe in which the middle foot portion of the upper 2 is divided into two pieces (the outer piece 21 and the inner piece 22) was exemplified, but the present invention is not limited to this. For example, as shown in FIG. 18, the shoe 100 may have a throat portion 261 formed in the middle foot portion of the upper 2 and a shoe tongue portion 262 closing the throat portion 261 . Further, as shown in FIG. 19, a throat portion 263 is provided in the middle foot portion of the upper 2, and a tongue portion 266 consisting of two pieces 264 and 265 that closes the throat portion 263 and is divided along the front-rear direction. It may be the shoe 100 provided. The structure of Figure 19 is also called a split tongue. Furthermore, a shoe in which the middle foot portion of the upper 2 is not divided may be used (not shown). A structure in which the metatarsal region is not divided is also called a monosock. In addition, in FIG.18 and FIG.19, the clamping member is abbreviate|omitted. These shoes 100 can also change the size of the opening portion by providing the tightening member, and furthermore, by pulling up the navicular bone by the tightening member, the inner longitudinal arch of the wearer can be maintained.

[Fifth embodiment]
In the above-described first embodiment, the buckle 43 is exemplified as a fixing method of the tightening member 4, but the fixing method is not limited to this, and a conventionally known method can be adopted. For example, as shown in FIG. 20, the tightening member 4 may be brought into a tensioned state by engagement using a hook-and-loop fastener 45 . In FIG. 20, a hook-and-loop fastener 45 is provided between the first strip 41 and the second strip 42 . The tightening member 4 is not limited to being composed of two belt-like bodies as described above, and may be composed of, for example, one belt-like body (not shown). In this case, for example, the first end of the strip (the first end of the clamping member) is connected to the navicular bone, and the second end of the strip (the second end of the clamping member) is connected to the navicular bone. A hook-and-loop fastener is provided on the upper end) and engaged with the outer piece 21 of the upper 2, so that the tightening member 4 can be stretched over in a tensioned state.
Alternatively, as shown in FIG. 21, the tightening member 4 may be brought into a tensioned state by being joined using a fastener 46 . In FIG. 21, the clamping member 4 is composed of one belt-like body, the first end of which is connected to correspond to the navicular bone. The second end 4b of the tightening member 4 is joined to the end 21a of the outer piece 21 of the upper 2 via a fastener 46. As shown in FIG.
Furthermore, as shown in FIGS. 22 and 23, the tightening member 4 may be a string-like body. A tightening member 4 made of a string-like body is partially passed through a position corresponding to the navicular bone, whereby the tightening member 4 pulls up the navicular bone and maintains the inner longitudinal arch of the wearer. be able to.
For example, in FIGS. 22 and 23, the fastening member 4 consists of a shoelace 47. As shown in FIG. 22 and 23 illustrate the upper 2 having the structure shown in FIG. 18 (the structure having the throat portion 261 and the tongue portion 262). A plurality of shoe hole portions 48 are provided in the outer lower portion and the inner lower portion of the upper 2 at intervals in the front-rear direction. The size of the shoe opening can be changed by successively extending the shoe laces 47 over the respective shoe hole portions 48 and tightening the shoe laces 47 . In addition, as shown in FIG. 23, a separate shoe hole portion 48' is provided at a position corresponding to the navicular bone of the upper 2, and a shoe lace 47 is passed through the shoe hole portion 48' to allow tightening. The member 4 allows the scaphoid to be pulled up.
Further, as a fixing method of the tightening member 4, tightening using a D ring (D-ring) may be employed (not shown).

[Sixth embodiment]
In the above-described first embodiment, the stitch portion 23 extending in the inward and outward directions is formed, but in combination with or in place of this, as shown in FIG. A stitch portion 231 may be formed.
Further, in the first embodiment, the upper 2 and the midsole 13 have respective cushion portions interposed between two sheets of sheet materials (the first sheet 14 and the second sheet 15). The sheet material may be folded back and each cushion portion may be arranged therebetween. In this case, the upper 2 and the midsole 13 can be configured by connecting appropriate portions of one sheet material by sewing or the like, excluding the folded portion.

[others]
The description of each embodiment described above includes the following aspects.
In the shoe, the inner ankle cushion part and the inner auxiliary cushion part are independent of the outer ankle cushion part and the outer auxiliary cushion part, or the connecting cushion part having a thickness smaller than those cushion parts is interposed between the cushion parts. It is connected to the outer ankle cushion part and the outer auxiliary cushion part. Such a configuration can prevent the upper from excessive contact with the wearer's Achilles tendon.

In the shoe, the inner auxiliary cushion portion has an edge that forms a gap, the edge of the inner auxiliary cushion portion extends obliquely forward and upward from the rear side in a side view, and the outer auxiliary cushion portion forms the gap. The edge of the external auxiliary cushion portion extends diagonally forward and upward from the rear side in a side view. Since the inner and outer cushion parts extend obliquely forward and upward from the rear side in a side view, the inner and outer auxiliary cushion parts follow the movement of the wearer's ankles and adhere closely to the wearer's feet. becomes easier. Therefore, it is possible to prevent the formation of spaces behind and above the ankles of the wearer during walking.

In the shoe, the inner ankle cushion portion and the inner auxiliary cushion portion are integrally formed, and the edge of the inner ankle cushion portion and the edge of the inner auxiliary cushion portion are substantially U-shaped to form the gap. The outer ankle cushion part and the outer auxiliary cushion part are integrally formed, and the edge of the outer ankle cushion part and the edge of the outer auxiliary cushion part are substantially U-shaped to form the gap. is doing. With this configuration, the inner and outer auxiliary cushion portions that have moved following the movement of the foot can easily return to their original positions. For this reason, the inner and outer auxiliary cushion parts can more easily follow the movement of the ankle, and the formation of spaces behind and above the ankles of the wearer can be effectively prevented.

In the shoe, the upper has an inner heel cushion portion and an outer heel cushion portion arranged corresponding to the inner and outer upper portions of the calcaneus of the wearer, and the inner heel cushion portion and the outer heel cushion portion. is independent of any of the inner ankle cushion portion, inner auxiliary cushion portion, outer ankle cushion portion, and outer auxiliary cushion portion, or at least one selected from them is connected through a thin connecting cushion portion Concatenated. By being independent from each other or connected via connecting cushion portions having a small thickness, the outer and inner ankle bones and the calcaneus are properly connected by the outer heel cushion portion and the inner heel cushion portion without being affected by the inner ankle cushion portion or the like. can support

In the shoe, the sole includes an underheel cushion portion arranged corresponding to the calcaneus of the wearer, and an underheel cushion portion arranged corresponding to the cuboid bone of the wearer and protruding upward from the underheel cushion portion. and a cubic subbone cushion portion. The upwardly protruding subcubic bone cushion part can support the cuboid bone located above the lower end of the calcaneus from below. The cuboid sub-bone cushioning portion can support each bone responsible for the lateral longitudinal arch, and correct the wearer's foot in a neutral position when standing.

In the shoe, the sole includes an under-heel cushion portion arranged corresponding to the calcaneus of the wearer, and a cushion portion under the heel arranged corresponding to the cuboid bone of the wearer and having a hardness higher than that of the under-heel cushion portion. a cuboid subbone cushion portion. The cubic sub-bone cushioning portion having a higher hardness compresses less than the under-heel cushioning portion when the wearer's load is applied. Therefore, when the wearer is in a standing position, the cuboid bone located above the calcaneus can be supported from below by the cushion part under the cuboid bone. The cuboid sub-bone cushioning portion can support each bone responsible for the lateral longitudinal arch, and correct the wearer's foot in a neutral position when standing.

The shoe has a tightening member provided on the upper, a first end of the tightening member is connected to a position corresponding to the navicular bone of the wearer, and the tightening member is attached to the wearer. It spans over the upper under tension while having a portion that overlaps the Chopard joint. The tensioned tightening member pulls up the navicular bone of the wearer, thereby suppressing the sinking of the navicular bone. Therefore, the medial longitudinal arch of the wearer wearing the shoes can be maintained, and the wearer's feet can be corrected to a neutral position when standing.

100 Shoes 1 Sole 2 Upper 31 Subcubic cushion 32 Lower heel cushion 51A Outer ankle cushion 52A Outer auxiliary cushion 51B Inner ankle cushion 52B Inner auxiliary cushion 61A Outer heel cushion 61B Inner heel cushion 64 Connection cushion

Claims (8)

1. A shoe having a sole and an upper provided above the sole,
   an inner ankle cushion portion in which the upper is arranged corresponding to the lower inner ankle of the wearer;
   an inner auxiliary cushion portion extending forward and upward from the rear side of the upper and having a front end portion extending above the inner ankle cushion portion so as to form a gap with the inner ankle cushion portion in a side view;
   an outer ankle cushion portion arranged corresponding to the lower outer ankle of the wearer;
   an external auxiliary cushion portion extending forward and upward from the rear side of the upper and having a front end portion extending above the outer ankle cushion portion so as to form a gap with the outer ankle cushion portion in a side view; I have shoes.
2. The inner ankle cushion part and the inner auxiliary cushion part are independent of the outer ankle cushion part and the outer auxiliary cushion part, or the outer ankle cushion part and the outer ankle cushion part via a connection cushion part having a thickness smaller than those cushion parts 2. The shoe of claim 1, which is connected to an external auxiliary cushion portion.
3. The inner auxiliary cushion portion has an edge that forms the gap, and the edge of the inner auxiliary cushion portion extends diagonally forward and upward from the rear side in a side view,
   The shoe according to claim 1 or 2, wherein the external auxiliary cushion portion has an edge that forms the gap, and the edge of the external auxiliary cushion portion extends obliquely forward and upward from the rear side in a side view.
4. The inner ankle cushion part and the inner auxiliary cushion part are integrally formed, and the edge of the inner ankle cushion part and the edge of the inner auxiliary cushion part are substantially U-shaped to form the gap,
   The outer ankle cushion part and the outer auxiliary cushion part are integrally formed, and the edge of the outer ankle cushion part and the edge of the outer auxiliary cushion part are substantially U-shaped to form the gap. 4. The shoe according to any one of claims 1-3.
5. The upper has an inner heel cushion part and an outer heel cushion part arranged corresponding to the upper medial side and the upper lateral side of the calcaneus of the wearer,
   The inner heel cushion part and the outer heel cushion part are independent of any of the inner ankle cushion part, the inner auxiliary cushion part, the outer ankle cushion part, and the outer auxiliary cushion part, or at least one selected from them 5. The shoe according to any one of claims 1 to 4, wherein the shoe is connected through a connection cushion portion having a small thickness.
6. The sole includes an under-heel cushion portion arranged corresponding to the heel bone of the wearer, and a cuboid bone arranged corresponding to the cuboid bone of the wearer and protruding upward from the under-heel cushion portion. 6. The shoe of any one of claims 1-5, comprising a lower cushion portion.
7. The sole includes an under-heel cushion portion arranged corresponding to the calcaneus of the wearer, and an under-cubic-bone cushion arranged corresponding to the cuboid bone of the wearer and having a hardness higher than that of the under-heel cushion portion. 7. The shoe of any one of claims 1-6, comprising a portion and a portion.
8. further comprising a tightening member provided on the upper;
   A first end of the tightening member is coupled at a location corresponding to the wearer's navicular bone, the tightening member having a portion that overlaps the wearer's Chopard's joint while being in tension against the upper. 8. The shoe of any one of claims 1-7, wherein the shoe is spanned.

Images