CN114025635A - Shoes with air-permeable layer - Google Patents
Shoes with air-permeable layer Download PDFInfo
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- CN114025635A CN114025635A CN201980097770.3A CN201980097770A CN114025635A CN 114025635 A CN114025635 A CN 114025635A CN 201980097770 A CN201980097770 A CN 201980097770A CN 114025635 A CN114025635 A CN 114025635A
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- Prior art keywords
- midsole
- outsole
- shoe
- protruding portion
- outer edge
- Prior art date
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- 210000002683 foot Anatomy 0.000 claims abstract description 49
- 210000000548 hind-foot Anatomy 0.000 claims abstract description 23
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 210000000474 heel Anatomy 0.000 claims description 18
- 210000000459 calcaneus Anatomy 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 230000004048 modification Effects 0.000 description 21
- 238000012986 modification Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 18
- 210000004744 fore-foot Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 210000000549 articulatio subtalaris Anatomy 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000007799 cork Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 210000001872 metatarsal bone Anatomy 0.000 description 2
- 210000000452 mid-foot Anatomy 0.000 description 2
- 210000004233 talus Anatomy 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000000458 cuboid bone Anatomy 0.000 description 1
- 210000000460 cuneiform bone Anatomy 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 210000003789 metatarsus Anatomy 0.000 description 1
- 210000000450 navicular bone Anatomy 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000011359 shock absorbing material Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
- A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/181—Resiliency achieved by the structure of the sole
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
- A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/24—Insertions or other supports preventing the foot canting to one side , preventing supination or pronation
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The shoe 1 includes an outsole 6 having a ground contact surface, a midsole 4 fixed to the outsole 6, and an upper coupled to the midsole 4 along a peripheral edge of the midsole 4, the midsole 4 has a protruding portion 8 at a position corresponding to a hindfoot portion on a medial foot side, the protruding portion 8 has a protruding length L1 measured as a horizontal distance from a coupling portion 10 of the upper and the midsole 4 to an outer edge 14 of the ground contact surface in plan view, and the protruding length L1 is longer than a horizontal length L2 from a coupling portion 10 of the rearmost upper and the midsole 4 to an outer edge 12 of the midsole 4.
Description
Technical Field
The invention relates to a shoe, in particular to a shoe with improved stability.
Background
Conventionally, shoes for running or walking are required to have both cushioning properties for absorbing impact at the time of landing and stability at the time of landing. In particular, stability at the time of landing is regarded as important from the viewpoint of preventing injury, and if the stability of the shoe is low, so-called foot pronation (over pronation) in which the foot is excessively inclined toward the inner foot side occurs at the time of landing, and the possibility of injury is increased. Therefore, it is extremely important to suppress the eversion of the foot, and as a technique for achieving this, for example, a technique described in patent document 1 is known.
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 5157020
Disclosure of Invention
Problems to be solved by the invention
However, the shoe described in patent document 1 has high stability by providing a hard buried portion in the midsole, but may have a prominent feeling depending on the preference of the user. Therefore, there is a need for: stability is improved by a method different from patent document 1.
Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a shoe having further improved stability.
Means for solving the problems
According to a first aspect of the present invention, there is provided an outsole having a ground contact surface, a midsole fixed to the outsole, and an upper coupled to the midsole along a peripheral edge of the midsole, wherein the midsole includes a protruding portion at a position corresponding to a hindfoot portion on a medial foot side, the protruding portion has a protruding length L1 measured as a horizontal distance from a coupling portion of the upper and the midsole to an outer edge of the ground contact surface in plan view, and the protruding length L1 is longer than a horizontal length L2 from a coupling portion of a rearmost upper and the midsole to the outer edge of the midsole.
The present invention is different from the above-described embodiments, and the present invention includes an outsole having a ground contact surface, a midsole fixed to the outsole, and an upper coupled to the midsole along a peripheral edge of the midsole, wherein the outsole includes a protruding portion at a position corresponding to a hindfoot portion on a medial foot side, the protruding portion has a protruding length L1 measured at a horizontal distance from a coupling portion of the outsole and the midsole to an outer edge of the ground contact surface in a plan view, and the protruding length L1 is longer than a horizontal length L2 from a coupling portion of the rearmost upper and the midsole to an outer edge of the midsole.
Drawings
Fig. 1 is a top view of a skeleton showing a foot.
Fig. 2 is a side view of an embodiment of a shoe.
Fig. 3 is a bottom view of an embodiment of a shoe.
Fig. 4 shows a cross-sectional view of an embodiment of a shoe.
Fig. 5 shows a cross-sectional view of an embodiment of a shoe.
Fig. 6 shows a cross-sectional view of an embodiment of a shoe.
Fig. 7 is a schematic cross-sectional view of a midsole of a shoe of an embodiment.
Fig. 8 is a schematic cross-sectional view of a midsole of a shoe of an embodiment.
Fig. 9 is a side view of an embodiment of a shoe.
FIG. 10 is a top view of an embodiment of an outsole and midsole.
FIG. 11 is a top view of an embodiment of a midsole.
FIG. 12 is a bottom view of a midsole and outsole of an embodiment.
Fig. 13 is a sectional view of a shoe according to a modification of the embodiment.
Fig. 14 is a sectional view of a shoe according to a modification of the embodiment.
Fig. 15 is a sectional view of a shoe according to a modification of the embodiment.
Fig. 16 is a sectional view of a shoe according to a modification of the embodiment.
Fig. 17 is a sectional view of a shoe according to a modification of the embodiment.
Fig. 18 is a sectional view of a shoe according to a modification of the embodiment.
Fig. 19 is a sectional view of a shoe according to a modification of the embodiment.
Figure 20 is a cross-sectional view of the shoe of the second embodiment.
Fig. 21 is a sectional view of a shoe according to a modification of the second embodiment.
Fig. 22 is a sectional view of a shoe according to a modification of the second embodiment.
Fig. 23 is a sectional view of a shoe according to a modification of the second embodiment.
Detailed Description
First, definitions of terms used in the present specification will be explained. In the present specification, the terms indicating the direction include a front-back direction, a width direction, and an up-down direction, and these terms indicating the direction indicate a direction viewed from a viewpoint of a wearer when wearing a shoe when the shoe is placed on a flat surface. Thus, the forward direction is the toe side and the rearward direction is the heel side. Further, as terms indicating the directions, the inner leg side and the outer leg side are sometimes used, but the inner leg side means the inner side of the foot in the width direction, that is, the side of the foot where the longitudinal arch is provided, and the outer leg side means the side opposite to the inner leg side in the width direction.
In the following description, the outer edges of the midsole and the outsole of the shoe may be referred to, and the outer edge of the midsole or the outsole means the outer edge of the projected shape when the midsole or the outsole is viewed in plan. In the following description, the outer side (direction) or the inner side (direction) of the midsole may be referred to. The outer side of the midsole refers to all directions away from the surface of the midsole when the midsole is viewed in plan. The inner side of the midsole refers to all directions in a plane from the outer side of the midsole toward the midsole when the midsole is viewed in plan. Also, in several examples, three-dimensional orthogonal coordinates are sometimes used to illustrate directions. In this case, the X-axis extends from the medial aspect to the lateral aspect, the Y-axis extends from the heel aspect to the toe aspect, and the Z-axis extends from the bottom aspect to the upper aspect.
Before the description of the shoe of the embodiment, the bones of the foot related to the shoe of the embodiment will be described with reference to fig. 1.
Fig. 1 is a top view of a skeleton showing a foot. The human foot mainly comprises cuneiform bones Ba, cuboid (cuboid) Bb, navicular (navicular) Bc, talus Bd, calcaneus (calcaneal) Be, metatarsus (metatarsal) Bf and phalanges Bg. The joints of the foot include a Metatarsophalangeal (MP) joint Ja, a metatarstarsal joint (Lisfranc's joint) Jb, and a Subtalar joint (Subtalar joint) Jc. The subtalar joint Jc includes a calcaneal cuboid joint Jc1 formed by the cuboid bone Bb and the calcaneus Be, and a talonavicular joint Jc2 formed by the navicular bone Bc and the talus Bd. The "forefoot" of the wearer in the present specification means a portion located more anterior than the MP joint Ja, and means 0% to about 30% of the entire length of the foot measured from the toe side. The "midfoot portion" refers to a portion from the MP joint Ja to the subtalar joint Jc, and refers to about 30% to 80% of the entire length of the foot measured from the toe side. The "hindfoot portion" refers to a portion more posterior than the subtalar joint Jc, and is about 80% to 100% of the entire length of the foot measured from the tiptoe side. In fig. 1, the centerline S represents a centerline of the shoe and extends along the central portion in the foot width direction. As for the center line S, a portion on a straight line passing through the third metatarsal Bf3 of the human body and the calcaneus medial bulge Be1 of the calcaneus Be is assumed. Fig. 1 shows a range where the calcaneus eminence medial projection Be1 is assumed.
Figure 2 is a side view of the shoe. Figure 2 is a side view of a single-sided shoe viewed from the inner foot side. As shown in fig. 2, the shoe 1 mainly includes an upper 2 covering the instep of a foot, a midsole 4 to which the upper 2 is coupled, and an outsole 6 having a ground contact surface that contacts the ground when walking.
The shoe upper 2 has a shape covering the upper side of the instep of the foot. The shoe upper 2 includes a shoe upper body 2a, a fastening member (fastening structure) 2b of the shoe upper, and a slit 2c extending in the front-rear direction of the shoe upper 2 in the vicinity of the widthwise center of the shoe upper 2. Further, a tongue 2d is attached to the shoe upper 2. In the present embodiment, a combination structure of eyelets and shoelaces is adopted as the fastening member 2b, but a surface fastener tape (fastener) or the like may be used as the fastening member.
The upper body 2a is formed of a mesh material, such as synthetic fibers woven from polyester or polyurethane, synthetic leather, or natural leather, and has a shape covering the instep of the foot. The slit 2c is a cushioning portion for adjusting the width of the upper body 2a according to the tightening condition of the lace. A plurality of eyelets are provided on both sides of the slit 2c in the width direction. The tongue 2d is exposed from the slit, and when the shoelace is tied, the shoelace does not contact the instep of the wearer.
Fig. 3 is a bottom view of the shoe. As shown in fig. 3, the outsole 6 is formed by, for example, molding rubber into a predetermined shape. Outsole 6 is attached to the bottom surface of midsole 4 in a manner that at least partially covers the bottom surface of midsole 4. The outsole 6 has a ground-contacting surface. A predetermined uneven pattern is formed on the surface of the ground plane, and the grip performance is improved by the uneven pattern.
In the example shown in fig. 3, the outsole 6 is formed by attaching a plurality of island-like portions to predetermined positions on the bottom surface of a predetermined midsole. The ground plane is formed by the bottom surfaces of a plurality of island-like portions, and the bottom surface of the midsole 4 is exposed between the island-like portions. Thus, in the example of the figure, the ground plane does not form one continuous plane, but is formed by a plurality of planes. Further, the outsole 6 may be formed by a flat sheet member. At this time, the bottom surface of the sheet member forms a ground plane.
The midsole 4 functions to absorb shock, and is made of a shock-absorbing material such as Ethylene-Vinyl Acetate (EVA), foamed urethane, GEL (GEL), or cork (cork). The midsole 4 has a planar shape that mimics the projected shape of the foot when viewed from above. The upper surface of the midsole 4 has a concave-convex shape corresponding to the concave-convex shape of the sole. Further, a shoe upper 2 is joined to the upper surface of the midsole 4. More specifically, upper 2 is joined along the outer edge of midsole 4 or slightly further inboard of midsole 4 than the outer edge. As a method of joining the upper 2 to the midsole 4, there is a method of sewing the edge of the upper 2 to the midsole 4 or joining the upper to the midsole 4 using a joining member such as an adhesive. The shape or thickness of the midsole 4 may be appropriately set according to the use of the shoe.
Fig. 4 to 6 show sectional views of the shoe. More specifically, FIG. 4 is a cross-sectional view of section 4-4 of FIG. 2, FIG. 5 is a cross-sectional view of section 5-5 of FIG. 2, and FIG. 6 is a cross-sectional view of section 6-6 of FIG. 2. The cross-sectional views of fig. 4 to 6 are cross-sectional views of the vicinity of the hindfoot, all viewed from the heel side to the toe side. Fig. 7 and 8 are schematic cross-sectional views of the midsole, both of which are cross-sectional views of the toe side as viewed from the heel side.
As shown in fig. 4 to 6, the midsole 4 includes a protruding portion 8 protruding outward. The protruding portion 8 is formed, for example, by forming a side surface of the midsole 4 in a trumpet shape that expands outward from the upper side toward the lower side. By providing the projection 8, so-called foot eversion can be suppressed. In order to suppress the eversion of the foot to the maximum, it is preferable to provide the projections 8 at least in the portion corresponding to the hindfoot portion on the inner foot side or only in the portion corresponding to the hindfoot portion on the inner foot side. Such a protrusion 8 may be formed of the same material and have the same hardness as the portion of the midsole 4 other than the protrusion 8. Further, the protruding portion 8 may be formed of a material different from that of the portion other than the protruding portion of the midsole 4, and the hardness may be made different between the protruding portion 8 and the portion other than the protruding portion 8. For example, as shown in fig. 4 to 6, when the hardness of the protrusion 8 is H1 and the hardness of the portion other than the protrusion 8 is H2, H1 > H2 may be used. With such a configuration, stability can be improved and a sense of protrusion can be suppressed. In this case, it is preferable that the midsole 4 is formed by two-color molding, and the protruding portion 8 and the portion other than the protruding portion 8 are integrally molded. Alternatively, the protruding portion 8 may be formed separately from the midsole 4 and joined together.
From another point of view, the protruding portion 8 has a shape such that the outer edge 12 of the bottom surface of the midsole 4 is positioned further outward than the joint portion 10 with respect to the joint portion 10 between the upper 2 and the midsole 4 in a plan view. In the shoe 1 of the embodiment, the protruding portion 8 is provided only at a portion corresponding to the hindfoot portion on the inner foot side. In another embodiment, the projecting portion 8 may be provided only on the hindfoot portion on the inner leg side and only on the forefoot portion on the inner leg side. In a further embodiment, the protrusion 8 may be provided only on the hindfoot portion on the inner leg side, the forefoot portion on the inner leg side, and the forefoot portion on the outer leg side. In a further aspect, the protruding portion 8 may be provided in all portions other than a portion corresponding to a landing area in the vicinity of a heel portion, which will be described later.
Here, the joint 10 between the midsole 4 and the upper 2, which is a reference for whether or not the protruding portion 8 is provided, may be different depending on the method of joining the midsole 4 and the upper 2. That is, when the midsole 4 and the upper 2 are sewn together, the midsole 4 and the upper 2 are in surface contact with each other, and the joint 10 has a constant width. At this time, when the outer edge 12 of the bottom surface of the midsole 4 is located further outside than the contact point between the midsole 4 and the upper 2 with reference to the contact point between the midsole 4 and the upper 2, the midsole 4 has the protruding portion 8. The upper surface of the midsole 4 (the surface to which the upper 2 is bonded) may be regarded as having a substantially flat shape even if it has a slight unevenness. In contrast, the shoe upper 2 has a curved shape that wraps the instep of a foot, as shown in fig. 4 to 6. Therefore, in the cross sections shown in fig. 4 to 6, there is a contact point where the flat midsole 4 contacts the curved upper 2. By forming the midsole 4 such that the outer edge 12 of the bottom surface of the midsole 4 is positioned further outward than the contact point with reference to this contact point, the protrusion 8 is provided in the midsole 4.
The height of the protruding portion 8 may be equal to the height of the midsole 4 (see fig. 7) or lower than the midsole 4 (see fig. 8). Fig. 7 and 8 schematically show the cross section of the midsole for clarity, and particularly exaggerate the angle of the inclined surface. When the height of the protruding portion 8 matches the height of the midsole 4, the protruding portion 8 has the following shape in the XZ cross section as shown in fig. 7(a), for example: a horizontal plane extending in the horizontal direction along the XY plane from the joint 10 between the midsole 4 and the upper 2 to the outer side of the midsole 4 and a vertical plane extending in the substantially vertical direction from the end of the horizontal plane to the bottom surface of the midsole 4 along the YZ plane are combined. As shown in fig. 7(b), the protrusion 8 may have the following shape: including a vertical plane extending from a junction 10 between the midsole 4 and the upper to the bottom surface of the midsole 4 along the YZ plane. The vertical plane may be inclined by about ± 3 ° with respect to the vertical direction. As shown in fig. 8, when the height of the protruding portion 8 does not match the height of the midsole 4, the protruding portion 8 has the following shape in an XZ cross section orthogonal to the protruding direction (inner leg direction) of the protruding portion 8: a vertical plane extending from the middle of the midsole 4 in the height direction in the substantially vertical direction toward the bottom surface of the midsole 4 along the YZ plane is combined.
When the height of the protruding portion 8 is lower than the midsole 4, the protruding portion 8 protrudes outward from the midsole 4 from an arbitrary position in the height direction of the midsole 4. For example, in the example shown in fig. 4 to 6, the upper end of the protrusion 8 is located at the middle of the height direction of the midsole 4, and the protrusion 8 has a shape that expands outward of the midsole 4 from the upper end toward the bottom surface of the midsole 4. In this case, the upper end of the protruding portion 8 is more preferably provided near the center of the midsole 4 in the height direction.
Figure 9 is a side view of a shoe. Fig. 9 is a side view of the shoe as viewed from the inner leg side, and the portion provided with the protruding portion is hatched. In the example shown in fig. 9, the protrusion 8 extends continuously in the anteroposterior direction from the middle of the midfoot portion to the hindfoot portion. The rear end of the protruding portion 8 is located in the middle of the rear foot portion and is set so as not to reach a landing area described later. In the example shown in fig. 9, the height of the protruding portion 8 becomes lower toward the front. In the example shown in the figure, the upper edge of the protruding portion 8 is inclined so as to be farther from the upper end of the midsole 4 toward the front. Thus, the height of the protruding portion 8 can be changed depending on the location. In this case, the height of the protruding portion of the hindfoot portion, which particularly requires stability, may be increased and decreased toward the front side. As a modification, the protruding portion 8 may be formed in a discontinuous shape extending intermittently in the front-rear direction.
Depending on the shape of the midsole 4 and outsole 6, the outer edge 12 of the midsole 4 may coincide with the outer edge 14 of the outsole 6 having a ground-contacting surface in plan view. Here, the outer edge 14 of the outsole 6 coincides with the outer edge 12 of the midsole 4, and includes at least the following two patterns.
As a first pattern, the outsole 6 has a one-piece sheet shape that conforms to the planar shape of the midsole 4, whereby the outer edge 14 of the outsole 6 conforms to the outer edge 12 of the midsole 4 in a plan view.
In the case where the outsole 6 is formed of a plurality of islands as the second pattern, a part of the outer edge 12 of the midsole 4 may coincide with a part of the outer edge 14 of at least one island. Fig. 10 is a top view of outsole 6 and midsole 4. In fig. 10, the outer edge 14 of the outsole 6 is indicated by a chain line of one dot, the outer edge 12 of the midsole 4 is indicated by a chain line of two dots, and the portions where the outsole 6 coincides with the outer edges 12, 14 of the midsole 4 are indicated by solid lines. As shown in fig. 10, only a part of the outer edge 14 in the lateral direction of the island-shaped outsole 6 coincides with a part of the outer edge 12 of the midsole 4.
The projection length L1(L1 > 0) of the projection 8 in the horizontal direction is longer than the horizontal length L2(L2 ≧ 0) from the junction 10 between the upper 2 and the midsole 4 to the outer edge 12 of the midsole 4 of the portion where the projection 8 is not provided. The following is a detailed description with reference to fig. 11.
Fig. 11 is a top view of the midsole. The projection length L1 of the projection 8 is the distance in the horizontal direction from the joint 10 between the upper 2 and the midsole 4 to the outer edge 14 of the ground contact surface. When the outer edge 14 of the ground contact surface coincides with the outer edge 12 of the midsole 4 as described above, the projection length L1 of the projection 8 may be referred to as a distance from the joint 10 between the upper 2 and the midsole 4 to the outer edge 12 of the midsole 4. On the other hand, the horizontal length L2 of the portion where the protruding portion 8 is not provided is the distance in the horizontal direction from the joint 10 between the upper 2 and the midsole 4 to the outer edge 12 of the midsole 4. The horizontal length L2 may be measured at any portion where the protrusion 8 is not provided. The protruding length L1 and the horizontal length L2 may vary depending on the shape of the midsole 4 and the shape of the joint 10. In this case, it is preferable to match the projection length L1 and the horizontal length L2 at the position where the distance in the horizontal direction is the largest. The horizontal length L3(L3 ≧ 0) on the outer leg side is a distance in the horizontal direction from the joint 10 between the upper 2 and the midsole 4 on the outer leg side to the outer edge 14 of the ground contact surface.
Various measurement methods are assumed for the measurement method of the protrusion length L1 and the horizontal lengths L2 and L3, and basically, both of them may be measured with the same standard. For example, the projection length L1 and the horizontal lengths L2 and L3 may be measured along the YZ plane at the position of the outer edge 12 of the midsole 4. Further, as an example, the projecting length L1 and the horizontal lengths L2 and L3 may be measured along the YZ plane of the position of the coupling portion 10. For example, the rear foot portion may be marked at an arbitrary point along the center line S, and the projection length L1 and the horizontal lengths L2 and L3 may be measured along the line drawn from the point toward the outer edge of the midsole. The projection length L1 of the projection 8 is longer than the horizontal lengths L2 and L3 from the junction 10 between the upper 2 and the midsole 4 to the outer edge 12 of the midsole 4 of the portion where the projection 8 is not provided.
In addition, as the outer edge of the midsole 4 does not coincide with the outer edge of the outsole 6, there are a case where the outer edge 12 of the midsole 4 is positioned further to the inner leg side than the outer edge 14 on the ground contact surface, and a case where the outer edge 12 of the midsole 4 is positioned further to the outer leg side than the outer edge 14 on the ground contact surface. In the former case, the projecting length L1 and the horizontal length L2 may be set to be horizontal distances from the joint 10 between the upper 2 and the midsole 4 to the outer edge 12 of the midsole 4, regardless of the position of the outer edge 14 of the ground contact surface. In the latter case, the projecting length L1 and the horizontal length L2 may be set to be horizontal distances from the joint 10 between the upper 2 and the midsole 4 to the outer edge 14 of the ground contact surface, regardless of the position of the outer edge 12 of the midsole 4.
FIG. 12 is a bottom view of the midsole and outsole. As described above, the protruding portion 8 is preferably not provided at the portion corresponding to the landing area 16 near the heel. Therefore, as the portion where no protruding portion 8 is provided, preferably the portion corresponding to the landing area 16 near the heel, the horizontal length L2 is preferably measured at the portion corresponding to the landing area 16 near the heel. In the case where the projecting portion 8 is not provided on the outer leg side, the horizontal length L2 may be measured at an arbitrary position on the outer leg side.
The landing area 16 near the heel is an area which is first in contact with the ground when the heel lands on the bottom surface of the shoe 1, and may be set as appropriate according to the use of the shoe 1 and the like. For example, in a running shoe, it is known that, as shown in fig. 12, the thickness of the midsole 4 is gradually reduced toward the heel side in a region on the rear side of an imaginary line VL1 that crosses the vicinity of the calcaneus in the width direction. In this way, the heel side and/or the lateral foot side are inclined upward with respect to the horizontal direction near the heel, forming an inclined surface (landing area 16). By forming such an inclined surface, the impact at the time of landing is relaxed. On the premise of such a technique, the shoe 1 of the embodiment is not provided with the protruding portion 8 at the portion corresponding to the landing area 16, and is provided with the protruding portion 8 at the portion other than the portion corresponding to the landing area 16. By not providing the protruding portion 8 at the portion corresponding to the landing area 16, the protruding portion 8 does not interfere with the grounding operation at the time of landing. In the case where no protruding portion 8 is provided in the landing area 16, the horizontal length L2 is preferably measured at a portion corresponding to the landing area 16, particularly at the rearmost portion on the heel side.
Instead of the virtual line VL1, a virtual line defining the land area 16 may be a virtual line VL2 inclined in the front-rear direction. The virtual line VL2 is a virtual line that is inclined in plan view with the outer leg side located further forward and the inner leg side located further rearward. The inclination angle of the imaginary line VL2 can be arbitrarily set, and can be set to an angle of greater than 0 degrees to about 45 degrees with respect to the imaginary line VL 1.
Further, as the configuration for defining the land area, the land area 16 may be defined by the arrangement of a plurality of outsoles 6 arranged in an island shape, without being limited to the inclination of the bottom surface of the midsole 4. At this time, for example, the outsole 6 is not formed along the virtual line VL1 or the virtual line VL2, but the outsole 6 is formed in the front-rear direction of the virtual line VL1 or the virtual line VL 2. This allows the bottom surface of the midsole 4 to be formed along a line that is exposed between the outsoles 6 along the virtual line VL1 or the virtual line VL2 (see fig. 3, for example). The lines are exposed on the surface of the midsole 4 when the shoe 1 is seen from above, and have higher flexibility than the portions where the outsoles 6 are formed. Therefore, the rear side of the line may be defined as the land area 16, and the protrusion 8 may not be provided in the portion corresponding to the land area 16, and the protrusion 8 may be provided in the other portion.
The midsole preferably has a constant hardness at least in a portion corresponding to the hindfoot portion, particularly in a portion located below the calcaneus bone when worn. In order to suppress the eversion of the foot, it is conceivable to suppress the foot from falling toward the inner foot side when the foot lands by making the hardness of the vicinity of the inner foot side end of the midsole higher than the hardness of the other portions. However, when the midsole has a difference in hardness, a boundary between a high-hardness portion and a low-hardness portion is necessarily present. When the boundary is located at a position overlapping the sole in a plan view, the high-hardness portion gives a so-called protruding feeling to the wearer in particular. In contrast, in the shoe of the present embodiment, the foot eversion can be suppressed by the protruding portion, and therefore, the foot eversion can be appropriately suppressed even if the hardness of the midsole is constant.
Fig. 13 to 19 are sectional views of the shoe, more specifically, views showing modifications of the sectional shape of the protruding portion.
In the modification shown in fig. 13, the protrusion 8 extends in a trumpet shape from the upper surface to the bottom surface of the midsole 4, and extends in a trumpet shape in which the inclination angle is gradually decreased at an inflection point provided at the middle of the midsole 4 in the height direction. In the modification shown in fig. 14, the protruding portion 8 extends from the middle of the height direction of the midsole 4 toward the inner leg side, and then extends in a trumpet shape toward the bottom surface. In the modification shown in fig. 15, the protruding portion 8 protrudes from the middle of the midsole 4 in the height direction toward the inner leg side in a curved shape. In the example shown in fig. 16, the protruding portion 8 protrudes from a low position in the height direction of the midsole 4 toward the inner leg side in a curved shape.
In the modification shown in fig. 17 to 19, a part of the midsole 4 other than the protruding portion 8 is formed of a high hardness material in addition to the protruding portion 8. In these modifications, the portion continuous with the protruding portion 8 is formed of a high-hardness material, and the remaining portion is formed of a low-hardness material. In fig. 17 to 19, portions formed of a high-hardness material are shaded for clarity. In the modification shown in fig. 17, the protruding portion 8 has the same shape as the protruding portion shown in fig. 13. Further, in the example shown in fig. 17, the protruding portion 8 has a high-hardness material portion having a shape that is line-symmetrical about a boundary line between the protruding portion 8 and a portion of the midsole 4 other than the protruding portion 8. In the modification shown in fig. 18, the protruding portion 8 is formed over the entire length of the midsole 4 in the height direction. In this example, the high-hardness material portion also has a shape that is line-symmetrical to the protruding portion 8. In the modification shown in fig. 19, the protrusion 8 is formed over the entire length of the midsole 4 in the height direction, and is formed in a shape curved toward the inner leg side. In this example, the high-hardness material portion also has a shape that is line-symmetrical to the protruding portion 8. In either case, the high-hardness material portion extends only in the medial direction of the midsole to a position where it hardly overlaps with the calcaneus bone in a plan view. In the example shown in fig. 17 in particular, the high-hardness material portion extends to a position partially overlapping the calcaneus bone in a plan view. However, even when the high-hardness material portion is extended in the inner direction of the midsole 4 at a position lower than the midsole 4 in the height direction as in the example shown in fig. 17, the feeling of protrusion can be suppressed. Therefore, when the high-hardness material portion is extended in the medial direction of the midsole 4, it is preferable that only the height direction lower side is extended and only the height direction upper side is not overlapped with the calcaneus bone. In this case, for example, it is more preferable to provide the high-hardness material portion further below the center in the higher-degree direction. Further, in order to suitably prevent the feeling of protrusion, it is more preferable that the high-hardness material portion does not have a shape such that: in a position overlapping the calcaneus bone, an angle is formed to the superior side. The protrusion feeling can be suppressed by the high-hardness material portion. Further, the high-hardness material portion does not necessarily need to have a shape line-symmetrical to the protruding portion 8.
As described above, in the shoe according to the embodiment, the projecting portion 8 is provided at a position corresponding to the hindfoot portion on the inner foot side, so that the inner foot side can be firmly supported at the time of landing, and eversion of the foot can be suppressed. This improves the stability. Further, by not providing the projecting portion 8 in the land area 16, the projecting portion 8 is prevented from interfering with the land contact operation.
Next, a second embodiment of the shoe will be explained. In the above embodiment, the protrusion is provided in the midsole, but in the second embodiment, the protrusion is provided in the outsole.
Figure 20 is a cross-sectional view of a shoe. As shown in fig. 20, the outsole 22 of the shoe 20 has a rolled portion 24, and a protruding portion 26 is formed on the rolled portion 24. The rolled portion 24 is formed by a peripheral wall rising upward from the outer edge of the outsole 22. More specifically, the turnup 24 extends upward from the outer edge of the outsole 22. The rolled portion 24 increases the rigidity of the shoe 20. The rigidity of the shoe 20 refers to bending rigidity or torsional rigidity. The position of the upper end of the rolled portion 24 may be changed as appropriate according to the use of the shoe 20.
The height of the rolled portion 24 may be uniform or may vary depending on the position. For example, when rigidity is required on the toe side, the height of the rolled portion 24 may be set to be lower on the heel side and higher on the toe side, or may be changed in the width direction inward and outward.
The protruding portion 26 is formed by making a side surface of the outsole 22 in a horn shape expanding outward from the upper side to the lower side. With such a protrusion 26, so-called foot pronation can also be suppressed. The position of the formation of the rolled portion 24 may be formed along the outer edge of the outsole 22 over the entire circumference of the outsole 22, or may be formed only partially along the outer edge of the outsole 22. The protruding portion 26 may be formed along the entire outer edge of the outsole 22 or only a portion of the rolled portion 24. The protruding portion 26 may be provided only at a portion corresponding to the hindfoot portion on the inner leg side. In another embodiment, the protrusion 26 may be provided only on the hindfoot portion on the inner leg side and only on the forefoot portion on the inner leg side. In a further embodiment, the protrusion 26 may be provided only on the hindfoot portion on the inner leg side, the forefoot portion on the inner leg side, and the forefoot portion on the outer leg side. In a further aspect, the protruding portion 26 may be provided in all portions other than the portion corresponding to the landing area near the heel.
The height of the protruding portion 26 may be the same as the height of the rolled portion 24 or may be lower than the rolled portion 24. For example, as shown in fig. 20, the height of the rolled portion 24 may be equal to the height of the midsole 28, and the height of the protruding portion 26 may be equal to the height of the rolled portion 24. At this time, the projecting portion 26 has the following shape in YZ cross section orthogonal to the projecting direction of the projecting portion 26: a horizontal plane extending along the XY-plane from the upper end of the rolled portion 24 to the outer side of the midsole 28 and a vertical plane extending from the end of the horizontal plane to the bottom surface of the midsole 28 along the YZ-plane are combined.
Fig. 21 to 23 are sectional views of the shoe, and show modifications of the protruding portion. As shown in fig. 21, when the height of the rolled portion 24 is equal to the height of the midsole 28 and the height of the protruding portion 26 is lower than the height of the rolled portion 24, the protruding portion 26 protrudes outward from the rolled portion 24 from an arbitrary position in the height direction of the rolled portion 24. For example, as shown in fig. 22, the height of the rolled portion 24 may be lower than the height of the midsole 28, and the height of the protruding portion 26 may be equal to the height of the rolled portion 24. At this time, the projecting portion 26 has the following shape in YZ cross section orthogonal to the projecting direction of the projecting portion 26: a horizontal plane extending along the XY-plane from the upper end of the rolled portion 24 to the outer side of the midsole 28 and a vertical plane extending from the end of the horizontal plane to the bottom surface of the outsole 22 substantially along the YZ-plane are combined. As shown in fig. 23, when the height of the rolled portion 24 is lower than the height of the midsole 28, and further, the height of the protruding portion 26 is lower than the height of the rolled portion 24, the protruding portion 26 has a shape protruding outward of the rolled portion 24 from an arbitrary position in the height direction of the rolled portion 24.
According to the second embodiment, too, by providing the protruding portion 26, the inner foot side can be firmly supported at the time of landing, and eversion of the foot can be suppressed. This improves the stability. Further, by not providing the projecting portion 26 in the land area, the projecting portion 26 is prevented from interfering with the land landing operation.
The embodiments of the present invention have been described above. Further, the respective configurations of the embodiments may be appropriately modified within a range not departing from the gist of the invention described in the patent claims.
The following describes an embodiment of the present invention derived from the invention described in the patent claims.
The first mode includes an outsole having a ground contact surface, a midsole fixed to the outsole, and an upper coupled to the midsole along a peripheral edge of the midsole, the midsole includes a protruding portion at a position corresponding to a hindfoot portion on a medial foot side, the protruding portion has a protruding length L1 measured as a horizontal distance from a coupling portion of the upper and the midsole to an outer edge of the ground contact surface in plan view, and the protruding length L1 is longer than a horizontal length L2 from a coupling portion of the rearmost upper and the midsole to the outer edge of the midsole.
The second configuration is the first configuration wherein the midsole is of a constant stiffness in at least the portion supporting the calcaneus bone.
The third mode is the first mode or the second mode, wherein the hardness of the protruding portion is higher than the hardness of the portion of the midsole other than the protruding portion.
The fourth aspect is the aspect according to any one of the first to third aspects, wherein the protruding portion is formed from a junction surface between the midsole and the outsole to a middle in a height direction of the midsole.
A fifth aspect is the aspect according to any one of the first to fourth aspects, wherein a side surface on the inner leg side of the protruding portion has a shape that is distant from the coupling portion as it goes toward the ground plane.
The sixth aspect is the aspect according to any one of the first to fifth aspects, wherein the midsole is formed by two-color molding.
A seventh aspect is the aspect according to any one of the first to sixth aspects, wherein the protruding portion is formed only on the hindfoot portion on the inner leg side.
The eighth aspect is the aspect according to any one of the first to sixth aspects, wherein the protruding portion is formed at a position other than an outer periphery of the landing area in the vicinity of the heel portion of the ground contact surface.
The ninth mode includes an outsole having a ground contact surface, a midsole fixed to the outsole, and an upper coupled to the midsole along a peripheral edge of the midsole, wherein the outsole includes a protruding portion at a position corresponding to a hindfoot portion on the inner foot side, the protruding portion has a protruding length L1 measured at a horizontal distance from a coupling portion of the outsole and the midsole to an outer edge of the ground contact surface in plan view, and the protruding length L1 is longer than a horizontal length L2 from a coupling portion of the rearmost upper and the midsole to an outer edge of the midsole.
Industrial applicability
The invention can be used for shoes.
Description of the symbols
1: shoes with air-permeable layer
2: shoe upper
4: middle sole
6: outer sole
8: projection part
10: joining part
12. 14: outer edge
16: landing area
20: shoes with air-permeable layer
22: outer sole
26: projection part
28: middle sole
Claims (9)
1. A shoe, comprising:
an outsole having a ground plane;
a midsole fixed to the outsole; and
an upper joined to the midsole along a periphery of the midsole,
the midsole includes a protruding portion having a protruding length L1 measured as a horizontal distance from a connection portion between the upper and the midsole to an outer edge of the ground contact surface in a plan view at a position corresponding to a hindfoot portion on a medial side,
the protruding length L1 is longer than a horizontal length L2 from a combination of the rearmost upper and the midsole to an outer edge of the midsole.
2. Shoe according to claim 1,
the midsole has a constant hardness at least in the portion supporting the calcaneus bone.
3. Shoe according to claim 1 or 2,
the hardness of the protrusion is higher than the hardness of a portion of the midsole other than the protrusion.
4. Shoe according to any of claims 1 to 3,
the protrusion is formed from a junction surface of the midsole and the outsole to a height direction middle of the midsole.
5. Shoe according to any of claims 1 to 4,
the side surface of the inner leg side of the protruding portion has a shape that is distant from the coupling portion as it goes toward the ground plane.
6. Shoe according to claim 3,
the midsole is formed in a two-color manner.
7. Shoe according to any of claims 1 to 6,
the protrusion is formed only on the hindfoot portion on the inner foot side.
8. Shoe according to any of claims 1 to 6,
the protruding portion is formed at a position other than the outer periphery of the ground contact area in the vicinity of the heel portion of the ground contact surface.
9. A shoe, comprising:
an outsole having a ground plane;
a midsole fixed to the outsole; and
an upper joined to the midsole along a periphery of the midsole,
the outsole includes a protruding portion at a position corresponding to a hindfoot portion on the inner foot side, the protruding portion having a protruding length L1 measured at a horizontal distance from a joint of the outsole and the midsole to an outer edge of the ground contact surface in a plan view,
the protruding length L1 is longer than a horizontal length L2 from a combination of the rearmost upper and the midsole to an outer edge of the midsole.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/025932 WO2020261562A1 (en) | 2019-06-28 | 2019-06-28 | Shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114025635A true CN114025635A (en) | 2022-02-08 |
Family
ID=74060501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980097770.3A Pending CN114025635A (en) | 2019-06-28 | 2019-06-28 | Shoes with air-permeable layer |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220240620A1 (en) |
| EP (1) | EP3981278A4 (en) |
| JP (1) | JP7402230B2 (en) |
| CN (1) | CN114025635A (en) |
| WO (1) | WO2020261562A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4333667A1 (en) * | 2021-05-04 | 2024-03-13 | Puma Se | Sole structure for an article of footwear |
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| US7334350B2 (en) * | 1999-03-16 | 2008-02-26 | Anatomic Research, Inc | Removable rounded midsole structures and chambers with computer processor-controlled variable pressure |
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| ES2357708B1 (en) * | 2009-03-30 | 2012-03-21 | Calzados Hergar, S.A. | FLAT FOR FOOTWEAR. |
| US20130031805A1 (en) * | 2011-08-01 | 2013-02-07 | SR Holdings, LLC | Articles of Footwear |
| US9775402B2 (en) * | 2012-05-10 | 2017-10-03 | Asics Corporation | Shoe sole having outsole and midsole |
| JP2017023229A (en) * | 2015-07-17 | 2017-02-02 | 美津濃株式会社 | Sole structure of spike shoes for baseball |
| JP6480846B2 (en) * | 2015-10-01 | 2019-03-13 | 美津濃株式会社 | shoes |
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| US9867426B2 (en) * | 2016-03-08 | 2018-01-16 | Nike, Inc. | Article of footwear with heel extender |
| US10561199B2 (en) * | 2016-11-14 | 2020-02-18 | Deckers Outdoor Corporation | Footwear including a stabilizing sole |
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2019
- 2019-06-28 US US17/622,896 patent/US20220240620A1/en active Pending
- 2019-06-28 EP EP19935274.1A patent/EP3981278A4/en active Pending
- 2019-06-28 JP JP2021527298A patent/JP7402230B2/en active Active
- 2019-06-28 CN CN201980097770.3A patent/CN114025635A/en active Pending
- 2019-06-28 WO PCT/JP2019/025932 patent/WO2020261562A1/en unknown
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| JPS5570202A (en) * | 1978-09-25 | 1980-05-27 | Brs Inc | Sports shoes having outer heel counter |
| JPS5849101A (en) * | 1981-09-17 | 1983-03-23 | 株式会社アシックス | Sole for athletic shoes |
| US4449306A (en) * | 1982-10-13 | 1984-05-22 | Puma-Sportschuhfabriken Rudolf Dassler Kg | Running shoe sole construction |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20220240620A1 (en) | 2022-08-04 |
| WO2020261562A9 (en) | 2021-02-18 |
| JP7402230B2 (en) | 2023-12-20 |
| EP3981278A4 (en) | 2022-06-08 |
| WO2020261562A1 (en) | 2020-12-30 |
| EP3981278A1 (en) | 2022-04-13 |
| JPWO2020261562A1 (en) | 2020-12-30 |
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