WO2021111529A1 - Shoe - Google Patents

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Publication number
WO2021111529A1
WO2021111529A1 PCT/JP2019/047275 JP2019047275W WO2021111529A1 WO 2021111529 A1 WO2021111529 A1 WO 2021111529A1 JP 2019047275 W JP2019047275 W JP 2019047275W WO 2021111529 A1 WO2021111529 A1 WO 2021111529A1
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WO
WIPO (PCT)
Prior art keywords
heel
cushion
shoe
edge
sole
Prior art date
Application number
PCT/JP2019/047275
Other languages
French (fr)
Japanese (ja)
Inventor
元貴 波多野
亜友 別所
智規 石指
克己 藤原
Original Assignee
株式会社アシックス
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社アシックス filed Critical 株式会社アシックス
Priority to PCT/JP2019/047275 priority Critical patent/WO2021111529A1/en
Priority to JP2021562238A priority patent/JP7480177B2/en
Publication of WO2021111529A1 publication Critical patent/WO2021111529A1/en

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs

Definitions

  • the present invention relates to a shoe in which a cushion is provided on the heel of the upper.
  • the shoe has a sole and an upper attached to the sole.
  • the upper is a member that covers the instep including the heel from the toes of the foot.
  • the heel of the upper is provided with a sponge-like cushion to fit the foot.
  • Patent Document 1 discloses a shoe in which a sponge in consideration of a change in the shape of the foot is provided on the heel of the upper. Specifically, the invention of Patent Document 1 pays attention to the change in the foot of the user in the shoe and the displacement of the upper when the user of the shoe runs.
  • Patent Document 1 discloses a sponge capable of filling the gap between the heel of the foot and the heel of the upper caused by the deviation during running.
  • the upper is usually manufactured using the last (last).
  • a last is an image of a human foot, but it is not the shape of the foot itself. That is, the last is three-dimensionally molded from a comprehensive viewpoint in consideration of the industrial manufacturing process of shoes, changes in the shape of the foot when using shoes, and adaptation to an unspecified number of users. There is. Therefore, the internal space of the upper formed by using the last is somewhat larger than the expected size of the foot. Shoes having such an upper are endowed with versatility (suitable for a large number of users) by adjusting the tightening of the upper.
  • An object of the present invention is to provide shoes having an excellent fit and being comfortable to wear.
  • the present inventors have found that even if the tightening of the upper is adjusted as described above, a gap is generated on the outside of the heel portion of the upper when the shoe is actually worn. In particular, a relatively large gap is generated on the outer side and the lower side of the heel portion of the upper.
  • the heel of the foot has a different shape near the inner ankle and near the outer ankle, and is asymmetrical inside and outside. For this reason, when the shoe is actually worn, a gap is created between the outside of the heel of the foot and the outside of the heel of the upper, and in particular, the inside of the heel is large on the lower side of the outer ankle of the heel of the foot. Gap can occur.
  • the first shoe of the present invention has a sole, an upper having a lower end attached to the sole and a heel, and a cushion provided on the upper, and the cushion is the heel of the upper.
  • the heel outer cushion is arranged outside the width direction center portion of the above, and the heel inner cushion is arranged inside the width direction center portion of the upper heel portion. It has an extension area that extends closer to the lower end of the upper than the heel medial cushion.
  • the second shoe of the present invention has a sole, an upper having a lower end attached to the sole and a heel, and a cushion provided on the upper, and the cushion is the heel of the upper.
  • the heel outer cushion is arranged outside the width direction center portion of the heel portion, and the heel inner cushion is arranged inside the width direction center portion of the upper heel portion.
  • the compressive rigidity of the heel inner cushion is larger than the compressive rigidity of the lower part of the heel inner cushion.
  • the third shoe of the present invention has a sole, an upper having a lower end attached to the sole and a heel, and a cushion provided on the upper, and the cushion is the heel of the upper.
  • the heel outer cushion is arranged outside the width direction center portion of the heel portion, and the heel inner cushion is arranged inside the width direction center portion of the upper heel portion, and the maximum thickness of the heel outer cushion portion is provided. However, it is larger than the maximum thickness of the heel inner cushion.
  • the shoe of the present invention can fill the gap between the heel of the foot and the heel of the upper with a cushion.
  • Such shoes have an excellent fit and are comfortable to wear.
  • FIG. 2 is a cross-sectional view taken along the line III-III of FIG. It is a reference view showing the positional relationship between the foot bone and the shoe, and is a reference side view seen from the outside of the shoe. It is a reference view showing the positional relationship between the foot bone and the shoe, and is a reference side view seen from the inside of the shoe.
  • a reference side view (1) of the upper heel viewed from the outside, a reference rear view (2) viewed from the rear side, and a reference side view (3) viewed from the inside are arranged in order to form a set of references.
  • Figure. A plan view of the cushion of the first embodiment as viewed from the first surface side.
  • FIG. 8 is an enlarged cross-sectional view taken along the line IX-IX of FIG.
  • FIG. 8 is an enlarged cross-sectional view taken along the line XX of FIG.
  • FIG. 4 is an enlarged cross-sectional view taken along the line XVI-XVI of FIG.
  • FIG. 14 is an enlarged cross-sectional view taken along the line XVII-XVII of FIG.
  • a plan view of the shoes of the third embodiment as viewed from above. It is a reference view which shows the shoe of 3rd Embodiment, and is the reference side view (7) which looked at the heel part of the upper of the shoe from the outside, the reference back view (8) which looked at from the rear side, and seen from the inside.
  • a reference view in which the reference side view (9) and the reference side view (9) are arranged in order to form a set.
  • the thumb side in the width direction is referred to as “inside” and the opposite side (the little finger side in the width direction) is referred to as “outside” with reference to the foot when the shoe is worn.
  • the side closer to the sole is referred to as “lower side”
  • the side away from the sole is referred to as “upper side”.
  • the term “abbreviation” means to include a range permitted in the technical field to which the present invention belongs.
  • the numerical range represented by "lower limit value XXX to upper limit value YYY” means a lower limit value XXX or more and an upper limit value YYY or less.
  • the shoe 1A is composed of a pair of left and right shoes for the left foot and the right foot. In each figure, for convenience, the shoe 1A for the left foot is illustrated. The shoes for the right foot are not shown because they are symmetrical with those for the left foot.
  • the shoe 1A of the present invention has a sole 2 and an upper 3 attached to the sole 2.
  • the sole 2 is a member in contact with the ground
  • the upper 3 is a member that covers the foot.
  • the lower end 3b of the upper 3 is attached to the sole 2.
  • a cushion 6A is provided on the heel portion 33 of the upper 3.
  • the cushion 6A includes a heel outer cushion 71 arranged outside the width direction center portion of the heel portion 33 of the upper 3, and a heel arranged inside the width direction center portion of the heel portion 33 of the upper 3. It has an inner cushion 72 and.
  • the heel outer cushion 71 has an extension region 711 extending closer to the lower end portion of the upper 3 than the heel inner cushion 72.
  • the sole 2 is a component of the shoe 1A including an outsole that touches the ground.
  • the material and structure of the sole 2 conventionally known materials and structures can be adopted.
  • the material of the sole 2 may be rubber, an elastomer, a synthetic resin, or a mixture thereof.
  • the sole 2 may be a foam, a non-foam, or a laminate of a foam and a non-foam.
  • the structure of the sole 2 may be a one-layer structure or a multi-layer structure having two or more layers.
  • the sole 2 has a laminated structure consisting of only the outsole or having an outsole and a midsole.
  • the multi-layered sole 2 has an outsole that is a portion that comes into contact with the ground and a midsole that is laminated on the upper surface side of the outsole. If necessary, any appropriate unevenness (not shown) is formed on the lower surface (the portion to be grounded) of the sole 2. Further, referring to FIG. 3, an insole 21 may be provided on the upper surface of the sole 2 as needed.
  • the upper 3 is a component of the shoe 1A that covers at least the instep and the heel, and is preferably a member that covers the instep and the heel including the toes of the foot.
  • the upper 3 is molded using the last.
  • the upper 3 is between the instep 31 corresponding to the toes and instep of the foot, the heel 33 corresponding to the heel of the foot, and the instep 31 and the heel 33. It is composed of an intermediate portion 32 and.
  • the instep 31 is a portion that includes the front end of the foot and covers the instep
  • the heel 33 is a portion that includes the rear end of the foot and covers the heel of the foot
  • the middle portion 32 is the upper 3.
  • the instep 31 and the heel 33 From the above (see FIGS. 4 and 5).
  • the bones of the foot and the outer shape of the foot are represented by solid lines
  • the sole 2 the upper 3 and the cushion 6A are represented by the alternate long and short dash lines.
  • the instep and heel can be identified based on the standard human foot skeletal structure.
  • the instep, including the anterior end of the foot is the portion of the standard human foot's 1st to 5th proximal phalanx 91 and 1st to 5th metatarsal
  • the heel of the foot is the portion of the calcaneus 93. Is.
  • the heel portion 33 of the upper 3 is a portion that covers the heel bone 93 of the foot from the outside to the inside, and is a portion that forms a substantially U shape in the top view shown in FIG.
  • FIG. 6 is a reference view in which the heel portions 33 of the upper 3 are arranged in order when viewed from three sides (outside, rear side, inside).
  • the cushion 6A is represented by a solid line
  • the sole 2 and the upper 3 are represented by a two-dot chain line.
  • the heel portion 33 of the upper 3 can be conceptually divided into two portions with reference to the central virtual line in the width direction viewed from the rear side.
  • the heel portion 33 of the upper 3 is conceptually located outside the central virtual line in the width direction and covers the outside of the heel of the foot, and is located inside the central virtual line in the width direction and the foot. It consists of an inner portion 332 that covers the inside of the heel of the foot.
  • the width direction central virtual line is a virtual line that passes through the width direction center portion of the heel portion 33 of the upper 3 and extends in the vertical direction. Therefore, the width direction central virtual line includes the width direction center portion of the heel portion 33.
  • the "center virtual line in the width direction" is referred to as a "central virtual line".
  • the dashed line in the back view (2) of FIG. 6 shows the central virtual line of the heel 33 of the upper 3, but such a line is not actually drawn.
  • a foot insertion portion 35 for inserting the user's foot is opened on the upper side of the upper 3.
  • the foot insertion portion 35 is defined by the upper end portion 35a of the upper 3.
  • the side view shape of the upper end portion 35a of the upper 3 that defines the foot insertion portion 35 is an arc shape that bulges downward.
  • an opening 36 extending in the front-rear direction is formed so as to communicate with the foot insertion portion 35.
  • the opening 36 is defined by the upper front end portion 36a of the upper 3.
  • the upper front end portion 36a is continuous with the upper end portion 35a, and as shown in FIG. 2, for example, is formed in a substantially U shape in a plan view.
  • a plurality of eyelet holes 37 are formed side by side in the front-rear direction in the plane of the upper front end portion 36a.
  • a shoelace 38 is passed through the eyelet hole 37.
  • a part of the shoelace 38 is omitted.
  • the upper 3 may have a tongue (not shown).
  • the tongue is a portion that extends continuously in a tongue shape from the upper front end portion 36a that defines the opening 36. By providing the tongue, it is possible to prevent the instep from being exposed from the substantially U-shaped opening 36.
  • the upper 3 of the type to which the shoelace 38 is attached is illustrated, but the upper 3 of the present invention is not limited to the type to which the shoelace 38 is attached, and may be a type having no shoelace (Fig.). Not shown). Further, in the illustrated example, the upper 3 of the type having the opening 36 is illustrated, but the upper 3 of the present invention may be the type having no opening (not shown).
  • the lower end 3b of the upper 3 is attached around the sole 2.
  • the method of attaching the lower end portion 3b of the upper 3 to the sole 2 is not particularly limited, and a conventionally known method can be adopted, and examples thereof include adhesion and sewing using an adhesive.
  • the upper 3 and the sole 2 are made of a material that can be heat-sealed, the lower end portion 3b of the upper 3 may be attached to the sole 2 by heat fusion.
  • the upper may include an insole (not shown).
  • the material for forming the upper 3 is not particularly limited, and examples thereof include conventionally known sheet materials.
  • the sheet material include fabrics such as woven fabrics and knitted fabrics, synthetic resin sheets, mesh sheets, and composite sheets thereof.
  • the upper 3 is formed by cutting the sheet material into an appropriate shape and sewing or adhering the sheet material three-dimensionally using the last.
  • at least the heel portion 33 of the upper 3 is formed in a bag shape for inserting the cushion 6A.
  • the heel portion 33 is formed of at least two sheet materials (first surface sheet material 391 and second surface sheet material 392).
  • a bag portion 39 into which the cushion 6A is inserted is formed between the first surface sheet material 391 and the second surface sheet material 392.
  • the heel portion 33 of the upper 3 has a bag portion 39, and the bag portion 39 is defined by the first surface sheet material 391 and the second surface sheet material 392.
  • the "second surface” refers to the surface on the side in contact with the foot
  • the "first surface” refers to the surface on the side opposite to the second surface.
  • the cushion 6A is a member that fills the gap between the upper 3 and the foot and enhances the fit of the heel portion.
  • the cushion 6A is provided on at least the heel portion 33 of the upper 3. If necessary, a cushion having an arbitrary shape may be provided on a portion of the upper 3 other than the heel portion 33 (not shown).
  • Cushion 6A is made of a flexible and resilient material.
  • the flexibility refers to the property of being easily deformed when an external force (load) is applied, and the stability refers to the property of substantially returning to the original shape when the external force is removed.
  • the cushion 6A is formed of, for example, a sponge, a cotton-like mass in which fibers are randomly laminated, or the like, and is preferably formed of a sponge.
  • the sponge is a mass having air bubbles and has flexibility and resilience. Examples of the sponge include foams such as synthetic resin, rubber, and elastomer.
  • the hardness of the cushion 6A is not particularly limited, but is, for example, an F hardness of 20 to 120 degrees, preferably 40 to 100 degrees, and more preferably 70 to 90 degrees.
  • the F hardness is a value obtained by measuring with an Asker rubber hardness tester F type (manufactured by Polymer Meter Co., Ltd.).
  • FIG. 7 to 10 show the cushion 6A before being attached to the upper.
  • FIG. 7 is a plan view of the cushion 6A viewed from the first surface 61 side
  • FIG. 8 is a plan view of the cushion 6A viewed from the second surface 62 side
  • FIGS. 9 and 10 are the plan views thereof. It is an enlarged view of the cross section.
  • the dashed lines in FIGS. 7 and 8 correspond to the above-mentioned central virtual line of the heel portion 33 when the cushion 6A is attached to the heel portion 33 of the upper 3. It should be noted that such a line is not actually drawn on the cushion 6A.
  • at least the lower portion of the cushion 6A is asymmetrical with respect to the central virtual line (thin broken line).
  • the cushion 6A has a heel outer cushion 71 located outside the central virtual line and a heel inner cushion 72 located inside the central virtual line with reference to the central virtual line.
  • the heel outer cushion 71 and the heel inner cushion 72 are integrally formed.
  • the heel outer cushion 71 is attached to the outer portion 331 of the heel portion 33 of the upper 3, and the heel inner cushion 72 is attached to the inner portion 332 of the heel portion 33 of the upper 3.
  • the heel outer cushion 71 of the cushion 6A has an extension region 711 extending below the heel inner cushion 72.
  • the extension area 711 of the heel outer cushion 71 protrudes below the lower edge 72b of the heel inner cushion 72 when the central virtual line is parallel to the vertical direction of the paper surface.
  • the extension area 711 corresponds to a portion protruding below the lower edge 72b of the heel inner cushion 72 when the heel outer cushion 71 is folded back to the heel inner cushion 72 on the central virtual line.
  • the schematic plan-view shape of the cushion 6A is a horizontally long shape having a long axis in the width direction.
  • the upper edge 71a of the heel outer cushion 71 and the upper edge 72a of the heel inner cushion 72 may be independently formed in a straight line substantially parallel to the width direction in a plan view, but in the illustrated example, both of them may be formed. It is formed in an arc shape that bulges downward. Since the upper edge 71a of the heel outer cushion 71 and the upper edge 72a of the heel inner cushion 72 are formed in an arc shape, the upper edge 71a.
  • the cushion 6A can be attached to the heel portion 33 of the upper 3 while the 72a follows the shape of the foot insertion portion 35 of the upper 3.
  • the plan-view shapes of the upper edge 71a of the heel outer cushion 71 and the upper edge 72a of the heel inner cushion 72 are not limited to the illustrated examples, and may be changed as appropriate.
  • the lower edge of the extension region 711 of the heel outer cushion 71 is formed in an arc shape bulging downward in a plan view.
  • the lower edge 711b of the extension region 711 of the heel outer cushion 71 has a lowermost edge 713b located at the lowermost side and an arc-shaped edge extending diagonally upward from the lowermost edge 713b toward the front side of the heel outer cushion 71. It has a 712b and an arc-shaped edge 714b extending diagonally upward from the lowermost edge 713b toward the rear side of the heel outer cushion 71.
  • the extension region 711 in which the lower edge 711b is formed in an arc shape can effectively fill the gap between the heel portion 33 of the upper 3 and the heel of the foot.
  • the lower edge 711b of the extension region 711 is preferably formed in an arc shape as a whole, and the lower edge 71b of the heel outer cushion 71 is more preferably formed in an arc shape as a whole. ..
  • the lower edge 71b of the heel outer cushion 71 includes the lower edge 711b of the extension region 711.
  • the plan view shape of the lower edge 711b of the extension region 711 is not limited to the arc shape and can be changed as appropriate.
  • the lower edge 711b of the extension region 711 may be formed in a substantially V-shape pointed downward.
  • the lower edge 711b of the extension region 711 may include a portion formed in a straight line substantially parallel to the width direction, or is formed in a straight line substantially parallel to the width direction as a whole. You may.
  • the front side refers to the side away from the central virtual line, and the rear side refers to the opposite side (central virtual line side).
  • the lower edge 72b of the heel inner cushion 72 is formed in an arc shape or a straight line extending diagonally downward from the front side to the rear side as a whole in a plan view.
  • the lower edge 72b of the heel inner cushion 72 is formed in an arc shape extending diagonally downward from the front side to the rear side as a whole in a plan view.
  • the plan-view shape of the heel inner cushion 72 is not limited to an arc shape or a straight line extending diagonally downward, and can be changed as appropriate.
  • the lower edge 72b of the heel inner cushion 72 may include a portion formed in a straight line substantially parallel to the width direction, or may be formed in a straight line substantially parallel to the width direction as a whole. You may.
  • a notched recess 79 is formed near the boundary between the upper edge 71a of the heel outer cushion 71 and the upper edge 72a of the heel inner cushion 72 (near the central virtual line).
  • a notched recess 79 is formed near the boundary between the lower edge 71b of the heel outer cushion 71 and the lower edge 72b of the heel inner cushion 72 (near the central virtual line).
  • the vertical length H1 of the heel outer cushion 71 at the lowermost edge 713b is larger than the vertical length H2 of the heel inner cushion 72 corresponding to the lowermost edge 713b in the width direction.
  • the vertical length H1 of the heel outer cushion 71 at the lowermost edge 713b means the vertical length between the lowermost edge 713b and the upper edge 71a.
  • the vertical length H2 of the heel inner cushion 72 corresponding to the lowermost edge 713b in the width direction is the heel outer cushion at the lowermost edge 713b when the heel outer cushion 71 is folded back to the heel inner cushion 72 at the central virtual line. It means the vertical length between the lower edge 72b and the upper edge 72a of the heel inner cushion 72, which overlaps with the vertical length of 71.
  • the extension area 711 of the heel outer cushion 71 is located near the lower end portion 3b of the upper 3. It can be easily positioned.
  • the vertical length H1 of the heel outer cushion 71 is longer than the vertical length H2 of the heel inner cushion 72 by 5 mm or more, preferably 8 mm or more, and more preferably 10 mm or more.
  • the thickness of the cushion 6A may be uniform, but in the illustrated example, the cushion 6A has a thickness difference in the vertical direction.
  • the thickness of the lower portion of the cushion 6A decreases monotonically toward the lower side.
  • the lower portion of the heel outer cushion 71 includes the lower portion of the extension region 711. Therefore, the thickness of the extension region 711 decreases monotonically toward the lower side.
  • monotonous decrease means monotonous decrease in a broad sense.
  • a portion where the thickness is gradually reduced toward the lower side and a portion where the thickness is equal to the lower side are defined. It is meant to include a case where the portion has an equal thickness and a case where there is a right-angled step portion between the portion having an equal thickness and a portion having a smaller thickness but an equal thickness and the two equal thickness portions.
  • the thickness of the lower portion of the cushion 6A (the lower portion of the heel outer cushion 71 and the lower portion of the heel inner cushion 72) is formed so as to gradually decrease toward the lower side.
  • the cushion 6A includes an even portion having an even thickness and a monotonically decreasing portion whose thickness gradually decreases toward the lower side.
  • the extension region 711 is composed of an even portion having a uniform thickness and a monotonically decreasing portion whose thickness gradually decreases toward the lower side in terms of wall thickness.
  • the monotonous reduction portion is formed in a tapered shape.
  • the cushion 6A and the extension region 711 may be independently reduced in thickness toward the lower side as a whole.
  • the specific value of the thickness of the cushion 6A is not particularly limited and can be set as appropriate.
  • the thickness of the cushion 6A thickness of the cushion 6A before being attached to the upper
  • the thickness of the cushion 6A is 3 mm to 30 mm, preferably 8 mm to 20 mm.
  • the thickness of the cushion 6A means the maximum value thereof.
  • the weight per unit area of the extension area 711 is monotonically decreasing toward the lower side.
  • the term that the weight per unit area is monotonically decreasing toward the lower side means that when the unit weight is gradually reduced toward the lower side, the unit weight is gradually reduced toward the lower side. It is meant to include a case where the unit weight has an equal portion and a case where there is a portion where the unit weight is equal and a portion where the unit weight is smaller but the unit weight is equal.
  • the extension area 711 whose weight per unit area is monotonically decreasing downward, can be configured in various ways. For example, as described above, the thickness of the extension area 711 is monotonically decreasing downward. This makes it possible to form an extension region 711 in which the weight per unit area is monotonically decreasing downward. By monotonically reducing the weight per unit area toward the lower side, it is possible to form an extension region 711 that is more easily deformed and has a smaller thickness toward the lower side when an external force is applied.
  • the cushion 6A shown in FIGS. 7 to 10 is attached to the heel portion 33 of the upper 3.
  • the cushion 6A is attached to the heel portion 33 of the upper 3.
  • the cushion 6A is inserted into the bag portion 39 of the upper 3.
  • the cushion 6A is flat as shown in FIGS. 7 to 10 when no external force is applied, but can be easily curved.
  • the cushion 6A is inserted and mounted in the bag portion 39 in a state of being curved in a substantially U shape in a top view so as to be along the heel portion 33 of the upper 3.
  • the cushion 6A is curved in a substantially U shape so that the second surface 62 of the cushion 6A is on the side in contact with the foot.
  • the cushion 6A is mounted so that the central virtual line of the cushion 6A is aligned with the central virtual line of the heel portion 33 of the upper 3. As described above, by using the cushion 6A in which the notched recesses 79 are formed at the top and bottom, the alignment can be easily performed.
  • the heel outer cushion 71 is arranged outside the widthwise central portion of the heel portion 33 of the upper 3. Moreover, the heel inner cushion 72 is arranged inside the heel portion 33 of the upper 3 in the width direction.
  • the extension area 711 of the heel outer cushion 71 extends closer to the lower end of the upper 3 than the heel inner cushion 72. Specifically, the extension region 711 of the heel outer cushion 71 is located substantially in contact with or near the lower end portion 3b of the upper 3. In comparison with the heel inner cushion 72, the extension area 711 of the heel outer cushion 71 protrudes below the heel inner cushion 72.
  • the heel outer cushion 71 has an extension region 711 extending closer to the lower end 3b of the upper 3 than the heel inner cushion 72.
  • the extension region 711 has a bottom edge 713b closest to the lower end 3b of the upper 3.
  • the extension region 711 has an arcuate edge 712b extending diagonally upward from the lowermost edge 713b toward the front side of the heel outer cushion 71, and an arc-shaped edge 712b extending upward diagonally from the lowermost edge 713b toward the rear side of the heel outer cushion 71. It has an extending arcuate edge 714b. Therefore, the heel lateral cushion 71 having the extension region 711 covers the lateral and inferior sides of the heel of the foot in lateral view.
  • the extension region 711 may extend until its lowermost edge 713b is substantially in contact with the lower end portion 3b of the upper 3. Alternatively, as shown in the figure, the lowermost edge 713b of the extension region 711 may be separated from the lower end portion 3b of the upper 3.
  • the distance between the lowermost edge 713b and the lower end portion 3b of the upper 3 is determined. For example, it is 5 mm to 35 mm, preferably 15 mm to 25 mm.
  • the heel outer cushion 71 is arranged so that the lowermost edge 713b of the extension region 711 is located at the center of the heel portion 33 in the anteroposterior direction of the upper 3 or closer to the rear side of the heel portion 33 in the lateral view.
  • the cushion 6A is located on the heel side of the heel portion 33 of the upper 3 so that the lowermost edge 713b of the extension region 711 is located closer to the rear side of the heel portion 33 of the upper 3 in the side view of the side view (1) of FIGS. 4 and 6. It is attached to the portion 33.
  • the vertical length of the heel outer cushion 71 at the lowermost edge 713b is larger than the vertical length of the heel inner cushion 72 corresponding to the lowermost edge 713b in the width direction.
  • the length indicated by reference numeral H1 in the side view (1) of FIG. 6 indicates the vertical length of the heel outer cushion 71 at the lowermost edge 713b.
  • the vertical length is the length between the lowermost edge 713b and the upper edge 71a.
  • the length indicated by reference numeral H2 in the side view (3) of FIG. 6 indicates the vertical length of the heel inner cushion 72 corresponding to the lowermost edge 713b in the width direction.
  • the vertical length of the heel inner cushion 72 is the length between the lower edge 72b and the upper edge 72a of the heel inner cushion 72 as described above.
  • the lower edge 72b of the heel inner cushion 72 which is a reference for the vertical length of the heel inner cushion 72, has the same length as the width direction of the central virtual line and the lowermost edge 713b, referring to the rear view (2).
  • shoes with an upper made using the last have a gap on the outside of the heel of the upper, especially in comparison between the heel of the upper and the underside of the outer ankle of the heel of the foot.
  • the gaps that occur on the outside and under the heel of the upper cannot be filled even if the upper is tightened with shoelaces or the like.
  • Shoes having a gap on the outside of the heel portion in this way are not comfortable to wear in daily life such as when the user wears the shoes or when walking.
  • the shoe 1A of the present embodiment has an extension region 711 in which the heel outer cushion 71 extends closer to the lower end 3b of the upper 3 than the heel inner cushion 72.
  • the shoe 1A of the present invention Since the extension region 711 fills a gap generated on the outer side and the lower side of the heel portion of the upper, the shoe 1A of the present invention has an excellent fit and a good comfort. According to the research by the present inventors, it has been found that shoes having an upper produced by using the last have a relatively large gap in the center of the heel of the upper in the anteroposterior direction or toward the rear of the heel. ing.
  • the shoe 1A of the present embodiment has a heel outer cushion so that the lowermost edge 713b of the extension region 711 is located at the center of the heel portion 33 of the upper 3 in the front-rear direction or toward the rear side of the heel portion 33. 71 is arranged. Therefore, the extension region 711 of the heel outer cushion 71 can effectively fill the gap generated on the outer side and the lower side of the heel portion 33 of the upper 3.
  • the extension area 711 has the lowermost edge 713b and the arcuate edges 712b and 714b on both sides of the lowermost edge 713b, the extension area 711 easily fits the outside of the heel of the foot, and the outside of the heel portion 33. Moreover, the gap generated on the lower side can be effectively filled with the extension area 711. In particular, when the entire lower edge 711b of the extension area 711 is formed in an arc shape, the extension area 711 is easily deformed smoothly when the foot is put in, and the lower edge 711b of the extension area 711 is the foot. Even if it hits the heel, it does not cause discomfort and improves comfort. In addition, since the shoes can easily hold the foot and follow the movement during movement such as running, improvement in performance can be expected.
  • the extension area 711 decreases monotonically toward the lower side, when the shoe 1A is worn (when an external force is applied to the extension area 711), the extension area 711 is extended. The lower side is more easily deformed and the thickness becomes smaller.
  • the shoe 1A having the cushion 6A including the extension area 711 is comfortable to wear because the extension area 711 is appropriately deformed even when worn by a user having a large heel.
  • a plurality of independent hole portions 73 may be formed in the plane of the extension region 711.
  • the hole 73 may be a through hole that penetrates in the thickness direction of the cushion 6A, or may be a non-through hole that does not penetrate in the thickness direction.
  • the hole 73 is a through hole.
  • the hole portion 73 may be formed only in the extension region 711, but as shown in the illustrated example, one or several hole portions 73 are also formed in a range beyond the extension region 711. May be good.
  • the hole portion 73 is formed in the extension region 711, the flexibility of the extension region 711 is improved as compared with the case where the hole portion is not formed.
  • the shoe 1A having the cushion 6A including the extension area 711 is improved in comfort because the extension area 711 is appropriately deformed even when worn by a user having a large heel.
  • the formation density of the hole portion 73 can be appropriately set. For example, by forming the holes 73 densely toward the lower side, it is possible to form an extension region 711 in which the weight per unit area decreases monotonically toward the lower side.
  • the second embodiment relates to a shoe in which the compressive rigidity of the lower part of the heel outer cushion is larger than the compressive rigidity of the lower part of the heel inner cushion.
  • FIG. 12 shows the cushion 6B of the second embodiment before being attached to the upper 3.
  • FIG. 12 is a plan view of the cushion 6B as viewed from the first surface side. The dashed line in the figure corresponds to the central virtual line when the cushion 6B is attached to the heel portion 33 of the upper 3.
  • FIG. 13 is a reference view of the shoe 1B of the second embodiment, and similarly to FIG. 6, each view when the heel portion 33 of the upper 3 is viewed from three sides (outside, rear side, inside) is in order. It is a side-by-side reference figure.
  • the cushion 6B is represented by a solid line
  • the sole 2 and the upper 3 are represented by a two-dot chain line.
  • the shoe 1B of the present embodiment also has a sole 2, an upper 3 having a lower end portion attached to the sole 2, and a cushion 6B provided on the heel portion 33 of the upper 3.
  • the cushion 6B is arranged outside the center portion in the width direction of the heel portion 33 of the upper 3 and the inside of the heel portion arranged inside the center portion in the width direction of the heel portion 33 of the upper 3. It has a cushion 72 and.
  • the cushion 6B has a substantially symmetrical shape with respect to the central virtual line (thin broken line). However, also in this embodiment, the cushion 6B may be asymmetrical with respect to the central virtual line.
  • the heel outer cushion 71 is located outside the central virtual line, and the heel inner cushion 72 is located inside the central virtual line. With reference to the lower edge 78b of the central portion in the width direction of the cushion 6B, the lower portion 715 of the heel outer cushion 71 and the lower portion 725 of the heel inner cushion 72 both extend below the lower edge 78b. There is.
  • the "lower portion 715 of the heel outer cushion 71" is referred to as the “outer lower portion 715"
  • the “lower portion of the heel inner cushion 72” is referred to as the “inner lower portion 725".
  • the degree of extension of the outer lower portion 715 (vertical length) and the degree of extension of the inner lower portion 725 (vertical length) may be the same or different.
  • the degree of extension of the outer lower portion 715 and the degree of extension of the inner lower portion 725 are the same, or the degree of extension of the outer lower portion 715 is larger than the degree of extension of the inner lower portion 725.
  • both the outer lower portion 715 and the inner lower portion 725 extend to the same extent as the extension region 711 of the first embodiment.
  • the outer lower portion 715 has a higher compressive rigidity than the inner lower portion 725.
  • the compressive rigidity refers to the ease of crushing in the thickness direction. When an external force is applied in the thickness direction, it can be said that the outer lower portion 715 having a large compressive rigidity is less likely to be crushed than the inner lower portion 725.
  • the outer lower portion 715 which has a higher compressive rigidity than the inner lower portion 725, can be configured by the methods (a) to (f) below.
  • A For example, as shown in FIG. 12, by forming a plurality of holes 74 (through holes or non-through holes) in the inner lower portion 725 and not forming holes in the outer lower portion 715, the inner side is formed.
  • the outer lower portion 715 having a higher compressive rigidity than the lower portion 725 can be configured.
  • a plurality of holes are formed in the inner lower portion 725, and a hole smaller than the heel inner cushion 72 is formed in the outer lower portion 715, and / and a smaller number of holes are formed than the heel inner cushion 72.
  • the outer lower portion 715 having a higher compressive rigidity than the inner lower portion 725 can be formed.
  • the outer lower portion 715 is formed of a sponge having a smaller foaming ratio than the inner lower portion 725, so that the outer lower portion 715 having a higher compression rigidity than the inner lower portion 725 is formed.
  • D A multi-layer structure in which the inner lower portion 725 is formed of a relatively soft and highly flexible material, and the outer lower portion 715 is formed of a harder material or a harder material. By forming the material which is relatively soft and has excellent flexibility, the outer lower portion 715 having a higher compressive rigidity than the inner lower portion 725 can be formed.
  • (E) Combine at least two methods selected from the above (a) to (d).
  • (F) A method other than the above (a) to (d), or a method other than the above (a) to (d) and at least one method selected from the above (a) to (d) are combined.
  • the difference between the compression rigidity of the outer lower portion 715 and the compression rigidity of the inner lower portion 725 is not particularly limited.
  • the compression rigidity of the outer lower portion 715 is 1.1 to 4 times the compression rigidity of the inner lower portion 725. It is preferably 2 to 3 times.
  • the plan view shape of the lower edge of the heel outer cushion 71 and the lower edge of the heel inner cushion 72 is not particularly limited and is formed into an appropriate shape.
  • the lower edge 715b of the outer lower portion 715 is the same as the extension region 711 of the first embodiment, and is formed in an arc shape bulging downward in a plan view.
  • the lower edge 725b of the inner lower portion 725 is also formed, for example, in an arc shape bulging downward in a plan view.
  • the thickness of the cushion 6B may be uniform or may have a difference in thickness.
  • the thickness of the outer lower portion 715 and the inner lower portion 725 decreases monotonically toward the lower side.
  • the shoe 1B of the second embodiment can be configured.
  • the cushion 6B is attached to the heel portion 33 of the upper 3.
  • the cushion 6B is also inserted into the bag portion 39 of the upper 3 in the present embodiment as well.
  • the cushion 6B is inserted and mounted in the bag portion 39 in a state of being curved in a substantially U shape in a top view so as to be along the heel portion 33 of the upper 3.
  • the heel outer cushion 71 is arranged outside the central virtual line (width direction central portion) of the heel portion 33 of the upper 3, and the heel inner cushion 72 is the heel portion 33 of the upper 3. It is arranged inside the central part in the width direction of.
  • the lower edge 715b of the outer lower portion 715 is located near the lower end portion 3b of the upper 3.
  • the lowermost edge 715b of the outer lower portion 715 is located at the center portion in the front-rear direction of the heel portion 33 of the upper 3 or closer to the rear side of the heel portion 33 in a side view.
  • the lower edge 725b of the inner lower portion 725 is located near the lower end portion 3b of the upper 3.
  • the lowermost edge 725b of the inner lower portion 725 is located at the center portion in the front-rear direction of the heel portion 33 of the upper 3 or closer to the rear side of the heel portion 33 in a side view.
  • the outer lower portion 715 is located near the lower end portion 3b of the upper 3, the gap generated on the outer side and the lower side of the heel portion 33 can be filled by the outer lower portion 715. ..
  • the inner lower portion 725 is also located near the lower end portion 3b of the upper 3, but the inner lower portion 725 has a smaller compression rigidity than the outer lower portion 715 (in other words, the outer lower portion 715 is the inner lower portion). (Because the compression rigidity is larger than that of the portion 725), it is easily compressed by an external force.
  • a shoe having an upper produced by using the last has a gap formed on the outer side and the lower side of the heel part of the upper part on the inner side and the lower side of the heel part. Larger than the resulting gap.
  • the gap is filled. be able to.
  • the inner lower portion 725 having a small compressive rigidity is located inside and below the heel portion 33 of the upper 3 which can generate a relatively small gap, when the shoe 1B is worn, the inner lower portion 725 thereof is located. Is easily compressed and the small gap can be filled with the inner lower portion 725. Therefore, it is possible to provide shoes 1B having an excellent fit and a good comfort.
  • the third embodiment relates to a shoe in which the maximum thickness of the heel outer cushion is larger than the maximum thickness of the heel inner cushion.
  • 14 to 17 show the cushion 6C of the third embodiment before being attached to the upper 3.
  • FIG. 14 is a plan view of the cushion 6C as viewed from the second surface side.
  • the dashed line in the figure corresponds to the central virtual line when the cushion 6C is attached to the heel portion 33 of the upper 3.
  • FIG. 18 is a plan view of the shoe 1C of the third embodiment as viewed from above.
  • FIG. 19 is a reference view of the shoe 1C, and is a reference view in which the heel portion 33 of the upper 3 is arranged in order when viewed from three sides (outside, rear side, inside), as in FIG.
  • the shoe 1C of the present embodiment also has a sole 2, an upper 3 having a lower end portion attached to the sole 2, and a cushion 6C provided on the heel portion 33 of the upper 3.
  • the cushion 6C is arranged outside the center portion in the width direction of the heel portion 33 of the upper 3 and the inside of the heel portion arranged inside the center portion in the width direction of the heel portion 33 of the upper 3. It has a cushion 72 and.
  • the cushion 6C is asymmetrical with respect to the central virtual line (dashed line).
  • the cushion 6C may have a substantially symmetrical shape with respect to the central virtual line.
  • the heel outer cushion 71 is located outside the central virtual line, and the heel inner cushion 72 is located inside the central virtual line.
  • the lower portion 781 of the central portion in the width direction of the cushion 6C extends below the lower edge 71b of the heel outer cushion 71 and the lower edge 72b of the heel inner cushion 72.
  • the vertical length of the widthwise central portion of the cushion 6C is larger than the vertical lengths of the heel outer cushion 71 and the heel inner cushion 72.
  • the vertical length of the heel outer cushion 71 is larger than the vertical length of the heel inner cushion 72.
  • the heel outer cushion 71 extends below the lower edge 78b of the central portion in the width direction and the lower edge 72b of the heel inner cushion 72, as in the first embodiment. It may have an extended region (not shown), or as in the second embodiment, the lower portion of the heel outer cushion 71 and the lower portion of the heel inner cushion 72 are below the central portion in the width direction. It may extend below the edge.
  • the present embodiment is characterized in that the maximum thickness of the heel outer cushion 71 is larger than the maximum thickness of the heel inner cushion 72. Specifically, as shown in FIGS. 15 to 17, the thickness of the heel outer cushion 71 is larger than the thickness of the heel inner cushion 72.
  • the heel outer cushion 71 may be of uniform thickness, and the heel inner cushion 72 may be of uniform thickness, provided that the maximum thickness of the heel outer cushion 71 is larger than the minimum thickness of the heel inner cushion 72. Good.
  • the thicknesses of the heel outer cushion 71 and the heel inner cushion 72 continuously change in the width direction. Specifically, the heel outer cushion 71 gradually increases in thickness as the distance from the central virtual line increases, becomes the thickest in the middle portion in the width direction, and then gradually decreases toward the end portion.
  • the thickness is the largest on the upper side of the middle portion in the width direction of the heel outer cushion 71.
  • the thickest portion 716 of the heel outer cushion 71 (hereinafter referred to as the maximum thickness portion 716) is shaded.
  • the thickness of the heel inner cushion 72 gradually decreases as the distance from the central virtual line increases. Therefore, the heel inner cushion 72 has the largest thickness in the vicinity of the central virtual line, but the maximum thickness of the heel inner cushion 72 is smaller than the thickness of the maximum thickness portion 716 of the heel outer cushion 71.
  • the maximum thickness portion 716 of the heel outer cushion 71 is the thickest portion of the cushion 6C.
  • the difference between the maximum thickness of the heel outer cushion 71 and the maximum thickness of the heel inner cushion 72 is not particularly limited.
  • the maximum thickness of the heel outer cushion 71 is 1.1 to 3 times the maximum thickness of the heel inner cushion 72. Yes, preferably 1.5 to 2.5 times.
  • the shoe 1C of the third embodiment can be configured.
  • the cushion 6C is attached to the heel portion 33 of the upper 3.
  • the cushion 6C is also inserted into the bag portion of the upper 3 in the present embodiment as well.
  • the lower edge 78b of the widthwise central portion of the cushion 6C is located near the lower end portion 3b of the upper 3.
  • the heel outer cushion 71 is arranged outside the central virtual line of the heel portion 33, and in particular, the maximum thickness portion 716 of the heel outer cushion 71 is viewed from the side. , It is located near the rear side of the heel portion 33 of the upper 3.
  • the heel inner cushion 72 is arranged inside the heel portion 33 of the upper 3 in the width direction.
  • the maximum thickness of the heel outer cushion 71 is larger than the maximum thickness of the heel inner cushion 72, it is possible to fill the gap generated on the outside of the heel portion 33.
  • a shoe having an upper produced by using the last has a larger gap formed on the outside of the heel portion of the upper than a gap formed on the inside of the heel portion.
  • the thickness of the heel outer cushion 71 arranged outside the heel portion 33 of the upper 3 which can generate a relatively large gap is made larger than that of the heel inner cushion 72, so that the outer side Can effectively fill the gaps between the two.
  • the cushion of each of the above embodiments is composed of a member having a single structure.
  • the cushion 6A may have a multi-layer structure.
  • the cushion of the illustrated example has a two-layer structure, for example, a two-layer structure in which the first sponge material 611 and the second sponge material 612 are joined via an adhesive layer 613. Further, although not particularly shown, it may have a three-layer structure in which the first to third sponge materials are laminated.
  • FIG. 20 illustrates the case where the cushion 6A of the first embodiment has a multi-layer structure, the cushion of the second embodiment and the like may also have a multi-layer structure.
  • the heel outer cushion 71 and the heel inner cushion 72 are integrally formed (that is, the rear side of the heel outer cushion 71 and the rear side of the heel inner cushion 72 are the upper heel portion. Although it is continuous in the central portion in the width direction), the heel outer cushion 71 and the heel inner cushion 72 may be formed separately.
  • the heel outer cushion 71 and the heel inner cushion 72 are independent, the heel outer cushion 71 is attached to the outside of the heel portion 33 (outer portion 331) of the upper 3, and the heel inner cushion 72 is attached to the heel portion 33 of the upper 3.
  • the shoe of the present invention is configured.
  • Two or more configurations (embodiments) selected from the above 1 to 4 embodiments may be appropriately combined, or one or two or more configurations selected from the above various embodiments may be combined with other embodiments. It may be replaced with a form.
  • the anisotropy of compressive rigidity shown in the second embodiment may be applied to the first embodiment.
  • the heel outer cushion 71 may be configured so that the compression rigidity of the extension region 711 of the first embodiment is larger than the compression rigidity of the heel inner cushion 72.
  • the thickness difference shown in the third embodiment may be applied to the first embodiment.
  • the cushion 6A is formed so that the maximum thickness of the heel outer cushion 71 of the first embodiment is larger than the maximum thickness of the heel inner cushion 72.
  • the upper portion of the heel outer cushion 71 of the first embodiment (the upper portion of the heel outer cushion 71 on the extension region 711) is the maximum thickness portion.
  • the effects of the first embodiment and the third embodiment are synergistic, and the gap generated on the outside of the heel portion of the upper can be reliably filled.
  • the lower edge of the extension area of the heel outer cushion is the lowermost edge closest to the lower end of the upper and the arcuate edge extending diagonally upward from the lowermost edge toward the front side of the heel outer cushion. And an arc-shaped edge extending diagonally upward from the lowermost edge toward the rear side of the heel outer cushion.
  • the extension area having the bottom edge and the arcuate edges on both sides thereof is easy to fit to the outside of the heel of the foot, and the gap generated on the outside and the bottom of the heel can be effectively filled.
  • the heel outer cushion is arranged so that the lowermost edge of the extension region is located at the center of the heel portion in the anteroposterior direction of the upper or toward the rear side of the heel portion.
  • the entire lower edge of the heel inner cushion is an arc or a straight line extending diagonally downward from the front side to the rear side of the heel inner cushion.
  • the weight per unit area of the extension area is monotonically decreasing toward the lower side.
  • the thickness of the extension region decreases monotonically toward the lower side.
  • the lower edge of the extension region of the heel outer cushion has the lowest edge closest to the lower end of the upper, and the vertical length of the heel outer cushion at the lowermost edge is the width direction. Is larger than the vertical length of the heel inner cushion corresponding to the lowermost edge.
  • a shoe having such an extension area can effectively fill the gap between the heel portion of the upper and the heel of the foot by the extension area.
  • the rear side of the heel outer cushion and the rear side of the heel inner cushion are continuous in the central portion in the width direction of the heel portion of the upper.
  • a cushion in which the outer heel cushion and the inner heel cushion are continuous can simplify the work of attaching the upper to the heel portion as compared with the case where the cushions are formed separately.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

This shoe 1B comprises: a sole 2; an upper 3 having a lower end part which is attached to the sole 2 and having a heel part 33; and a cushion 6B which is disposed on the upper 3. The cushion 6B comprises: a heel outer side cushion 71 which is positioned further toward the outer side than the width direction center part of the heel part 33 of the upper 3; and a heel inner side cushion 72 which is positioned further toward the inner side than the width direction center part of the heel part 33 of the upper 3. The heel outer side cushion 71 has an extension region 711 which extends closer to the lower end part 3b of the upper 3 than the heel inner side cushion 72 is.

Description

シューズshoes
　本発明は、アッパーの踵部にクッションが設けられたシューズに関する。 The present invention relates to a shoe in which a cushion is provided on the heel of the upper.
　シューズは、ソールと、ソールに取り付けられたアッパーと、を有する。アッパーは、足のつま先から踵を含む足甲を覆う部材である。
　アッパーの踵部には、足にフィットさせるために、スポンジのようなクッションが具備されている。
　例えば、特許文献１には、足の形状の変化を考慮したスポンジがアッパーの踵部に具備されているシューズが開示されている。
　具体的には、特許文献１の発明は、シューズの使用者がランニングした際の、シューズ内の使用者の足の変化とアッパーのズレに着目している。特許文献１には、前記ランニング時のズレによって生じる足の踵とアッパーの踵部との隙間を埋めることができるスポンジが開示されている。 The shoe has a sole and an upper attached to the sole. The upper is a member that covers the instep including the heel from the toes of the foot.
The heel of the upper is provided with a sponge-like cushion to fit the foot.
For example, Patent Document 1 discloses a shoe in which a sponge in consideration of a change in the shape of the foot is provided on the heel of the upper.
Specifically, the invention of Patent Document 1 pays attention to the change in the foot of the user in the shoe and the displacement of the upper when the user of the shoe runs. Patent Document 1 discloses a sponge capable of filling the gap between the heel of the foot and the heel of the upper caused by the deviation during running.
ＷＯ２０１４／０６４７８０WO2014 / 064780
　ところで、工業的にシューズを量産する過程では、通常、ラスト（靴型）を使用してアッパーを作製する。かかるラストは、人間の足を象ったものであるが、足の形状そのものではない。すなわち、ラストは、シューズの工業的製造工程、シューズ使用時の足の形状変化、及び不特定多数の使用者に適合させることなどを考慮した、総合的な観点に基づいて立体的に成形されている。そのため、ラストを用いて成形されたアッパーの内部空間は、想定される足の大きさよりもある程度大きくなる。かかるアッパーを有するシューズは、アッパーの締め付けを調整することにより、汎用性（多数の使用者に適合できること）が付与されている。
　しかしながら、シューズを実際に履く際にアッパーの締め付けを調整したとしても、ラストとアッパーの構造の組み合わせによっては、足の踵とアッパーの踵部に隙間が生じることがある。従って、より多くの使用者の踵にフィットし、履き心地の良いシューズを提供する上で、アッパーを改良する余地があるということが判ってきた。 By the way, in the process of mass-producing shoes industrially, the upper is usually manufactured using the last (last). Such a last is an image of a human foot, but it is not the shape of the foot itself. That is, the last is three-dimensionally molded from a comprehensive viewpoint in consideration of the industrial manufacturing process of shoes, changes in the shape of the foot when using shoes, and adaptation to an unspecified number of users. There is. Therefore, the internal space of the upper formed by using the last is somewhat larger than the expected size of the foot. Shoes having such an upper are endowed with versatility (suitable for a large number of users) by adjusting the tightening of the upper.
However, even if the tightening of the upper is adjusted when actually wearing the shoe, a gap may occur between the heel of the foot and the heel of the upper depending on the combination of the structure of the last and the upper. Therefore, it has become clear that there is room for improvement of the upper in providing shoes that fit the heels of more users and are comfortable to wear.
　本発明の目的は、フィット感に優れ、履き心地の良いシューズを提供することである。 An object of the present invention is to provide shoes having an excellent fit and being comfortable to wear.
　本発明者らは、前記のようにアッパーの締め付けを調整したとしても、シューズを実際に履いた際には、アッパーの踵部の外側に隙間が生じることを見出した。特に、アッパーの踵部の外側且つ下側に比較的大きな隙間が生じる。
　足の踵は、内くるぶし付近と外くるぶし付近で形状が異なり、内外非対称である。このため、シューズを実際に履いた際には、足の踵の外側とアッパーの踵部の外側の間に隙間が生じ、特に、足の踵の外くるぶし下側に、踵の内側寄りも大きな隙間が生じ得る。つまり、アッパーの踵部の外側且つ下側に、踵部の内側且つ下側よりも比較的大きな隙間を生じることを見出した。
　かかる隙間を埋めるようにクッションを配置すると、足の踵とアッパーの外側との間の隙間が実質的に消失し、アッパーが足にフィットするシューズが得られる。 The present inventors have found that even if the tightening of the upper is adjusted as described above, a gap is generated on the outside of the heel portion of the upper when the shoe is actually worn. In particular, a relatively large gap is generated on the outer side and the lower side of the heel portion of the upper.
The heel of the foot has a different shape near the inner ankle and near the outer ankle, and is asymmetrical inside and outside. For this reason, when the shoe is actually worn, a gap is created between the outside of the heel of the foot and the outside of the heel of the upper, and in particular, the inside of the heel is large on the lower side of the outer ankle of the heel of the foot. Gap can occur. That is, it has been found that a relatively large gap is generated on the outer side and the lower side of the heel part of the upper than on the inner side and the lower side of the heel part.
When the cushion is arranged so as to fill such a gap, the gap between the heel of the foot and the outside of the upper is substantially eliminated, and a shoe in which the upper fits the foot can be obtained.
　本発明の第１のシューズは、ソールと、前記ソールに下端部が取り付けられ且つ踵部を有するアッパーと、前記アッパーに設けられたクッションと、を有し、前記クッションが、前記アッパーの踵部の幅方向中央部よりも外側に配置された踵外側クッションと、前記アッパーの踵部の幅方向中央部よりも内側に配置された踵内側クッションと、を有し、前記踵外側クッションが、前記踵内側クッションよりも前記アッパーの下端部近くに延在されている延出領域を有する。 The first shoe of the present invention has a sole, an upper having a lower end attached to the sole and a heel, and a cushion provided on the upper, and the cushion is the heel of the upper. The heel outer cushion is arranged outside the width direction center portion of the above, and the heel inner cushion is arranged inside the width direction center portion of the upper heel portion. It has an extension area that extends closer to the lower end of the upper than the heel medial cushion.
　本発明の第２のシューズは、ソールと、前記ソールに下端部が取り付けられ且つ踵部を有するアッパーと、前記アッパーに設けられたクッションと、を有し、前記クッションが、前記アッパーの踵部の幅方向中央部よりも外側に配置された踵外側クッションと、前記アッパーの踵部の幅方向中央部よりも内側に配置された踵内側クッションと、を有し、前記踵外側クッションの下方部の圧縮剛性が、前記踵内側クッションの下方部の圧縮剛性よりも大きい。 The second shoe of the present invention has a sole, an upper having a lower end attached to the sole and a heel, and a cushion provided on the upper, and the cushion is the heel of the upper. The heel outer cushion is arranged outside the width direction center portion of the heel portion, and the heel inner cushion is arranged inside the width direction center portion of the upper heel portion. The compressive rigidity of the heel inner cushion is larger than the compressive rigidity of the lower part of the heel inner cushion.
　本発明の第３のシューズは、ソールと、前記ソールに下端部が取り付けられ且つ踵部を有するアッパーと、前記アッパーに設けられたクッションと、を有し、前記クッションが、前記アッパーの踵部の幅方向中央部よりも外側に配置された踵外側クッションと、前記アッパーの踵部の幅方向中央部よりも内側に配置された踵内側クッションと、を有し、前記踵外側クッションの最大厚みが、前記踵内側クッションの最大厚みよりも大きい。 The third shoe of the present invention has a sole, an upper having a lower end attached to the sole and a heel, and a cushion provided on the upper, and the cushion is the heel of the upper. The heel outer cushion is arranged outside the width direction center portion of the heel portion, and the heel inner cushion is arranged inside the width direction center portion of the upper heel portion, and the maximum thickness of the heel outer cushion portion is provided. However, it is larger than the maximum thickness of the heel inner cushion.
　本発明のシューズは、足の踵とアッパーの踵部の間の隙間をクッションによって埋めることができる。かかるシューズは、フィット感に優れ、履き心地も良好となる。 The shoe of the present invention can fill the gap between the heel of the foot and the heel of the upper with a cushion. Such shoes have an excellent fit and are comfortable to wear.
本発明の第１実施形態のシューズの斜視図。The perspective view of the shoe of 1st Embodiment of this invention. 同シューズを上側から見た平面図。Top view of the shoe from above. 図２のＩＩＩ－ＩＩＩ線で切断した断面図。FIG. 2 is a cross-sectional view taken along the line III-III of FIG. 足骨とシューズの位置関係を表した参考図であって、シューズの外側から見た参考側面図。It is a reference view showing the positional relationship between the foot bone and the shoe, and is a reference side view seen from the outside of the shoe. 足骨とシューズの位置関係を表した参考図であって、シューズの内側から見た参考側面図。It is a reference view showing the positional relationship between the foot bone and the shoe, and is a reference side view seen from the inside of the shoe. アッパーの踵部を外側から見た参考側面図（１）と、後側から見た参考背面図（２）と、内側から見た参考側面図（３）と、を順に並べて一組とした参考図。A reference side view (1) of the upper heel viewed from the outside, a reference rear view (2) viewed from the rear side, and a reference side view (3) viewed from the inside are arranged in order to form a set of references. Figure. 第１実施形態のクッションを第１面側から見た平面図。A plan view of the cushion of the first embodiment as viewed from the first surface side. 同クッションを第２面側から見た平面図。A plan view of the cushion as viewed from the second surface side. 図８のＩＸ－ＩＸ線で切断した拡大断面図。FIG. 8 is an enlarged cross-sectional view taken along the line IX-IX of FIG. 図８のＸ－Ｘ線で切断した拡大断面図。FIG. 8 is an enlarged cross-sectional view taken along the line XX of FIG. 第１実施形態の変形例のクッションを第１面側から見た平面図。A plan view of the cushion of the modified example of the first embodiment as viewed from the first surface side. 第２実施形態のクッションを第１面側から見た平面図。A plan view of the cushion of the second embodiment as viewed from the first surface side. 第２実施形態のシューズを示す参考図であって、そのシューズのアッパーの踵部を外側から見た参考側面図（４）と、後側から見た参考背面図（５）と、内側から見た参考側面図（６）と、を順に並べて一組とした参考図。It is a reference view which shows the shoe of 2nd Embodiment, and is the reference side view (4) which looked at the heel part of the upper of the shoe from the outside, the reference back view (5) which looked at from the rear side, and seen from the inside. A reference view in which the reference side view (6) and the reference side view (6) are arranged in order to form a set. 第３実施形態のクッションを第２面側から見た平面図。A plan view of the cushion of the third embodiment as viewed from the second surface side. 同クッションの斜視図。A perspective view of the cushion. 図１４のＸＶＩ－ＸＶＩ線で切断した拡大断面図。FIG. 4 is an enlarged cross-sectional view taken along the line XVI-XVI of FIG. 図１４のＸＶＩＩ－ＸＶＩＩ線で切断した拡大断面図。FIG. 14 is an enlarged cross-sectional view taken along the line XVII-XVII of FIG. 第３実施形態のシューズを上側から見た平面図。A plan view of the shoes of the third embodiment as viewed from above. 第３実施形態のシューズを示す参考図であって、そのシューズのアッパーの踵部を外側から見た参考側面図（７）と、後側から見た参考背面図（８）と、内側から見た参考側面図（９）と、を順に並べて一組とした参考図。It is a reference view which shows the shoe of 3rd Embodiment, and is the reference side view (7) which looked at the heel part of the upper of the shoe from the outside, the reference back view (8) which looked at from the rear side, and seen from the inside. A reference view in which the reference side view (9) and the reference side view (9) are arranged in order to form a set. 第４実施形態のクッションの拡大断面図。An enlarged cross-sectional view of the cushion of the fourth embodiment.
　以下、本発明について図面を参照しつつ説明する。
　本明細書において、シューズを履いた際の足を基準にして、幅方向で親指側を「内側」といい、その反対側（幅方向で小指側）を「外側」という。本明細書において、ソールに近い側を「下側」といい、ソールから離れる側を「上側」という。本明細書において、「略」は、本発明の属する技術分野において許容される範囲を含むことを意味する。本明細書において、「下限値ＸＸＸ～上限値ＹＹＹ」で表される数値範囲は、下限値ＸＸＸ以上上限値ＹＹＹ以下を意味する。前記数値範囲が別個に複数記載されている場合、任意の下限値と任意の上限値を選択し、「任意の下限値～任意の上限値」を設定できるものとする。 Hereinafter, the present invention will be described with reference to the drawings.
In the present specification, the thumb side in the width direction is referred to as "inside" and the opposite side (the little finger side in the width direction) is referred to as "outside" with reference to the foot when the shoe is worn. In the present specification, the side closer to the sole is referred to as "lower side", and the side away from the sole is referred to as "upper side". As used herein, the term "abbreviation" means to include a range permitted in the technical field to which the present invention belongs. In the present specification, the numerical range represented by "lower limit value XXX to upper limit value YYY" means a lower limit value XXX or more and an upper limit value YYY or less. When a plurality of the numerical values are described separately, it is possible to select an arbitrary lower limit value and an arbitrary upper limit value and set "arbitrary lower limit value to arbitrary upper limit value".
［第１実施形態］
＜シューズの概要＞
　シューズ１Ａは、左足用及び右足用の左右一組で構成される。各図においては、便宜上、左足用のシューズ１Ａを例示している。右足用のシューズは、左足用と対称的であるため図示しない。 [First Embodiment]
<Outline of shoes>
The shoe 1A is composed of a pair of left and right shoes for the left foot and the right foot. In each figure, for convenience, the shoe 1A for the left foot is illustrated. The shoes for the right foot are not shown because they are symmetrical with those for the left foot.
　本発明のシューズ１Ａは、ソール２と、ソール２に取り付けられたアッパー３と、を有する。
　ソール２は、地面に接する部材であり、アッパー３は、足を覆う部材である。アッパー３は、その下端部３ｂがソール２に取り付けられている。
　アッパー３の踵部３３には、クッション６Ａが具備されている。
　前記クッション６Ａは、前記アッパー３の踵部３３の幅方向中央部よりも外側に配置された踵外側クッション７１と、前記アッパー３の踵部３３の幅方向中央部よりも内側に配置された踵内側クッション７２と、を有する。
　第１実施形態においては、前記踵外側クッション７１が、前記踵内側クッション７２よりも前記アッパー３の下端部近くに延在されている延出領域７１１を有する。
　以下、ソール２、アッパー３及びクッション６Ａのそれぞれについて分説した後、本発明のシューズ１Ａを詳述する。 The shoe 1A of the present invention has a sole 2 and an upper 3 attached to the sole 2.
The sole 2 is a member in contact with the ground, and the upper 3 is a member that covers the foot. The lower end 3b of the upper 3 is attached to the sole 2.
A cushion 6A is provided on the heel portion 33 of the upper 3.
The cushion 6A includes a heel outer cushion 71 arranged outside the width direction center portion of the heel portion 33 of the upper 3, and a heel arranged inside the width direction center portion of the heel portion 33 of the upper 3. It has an inner cushion 72 and.
In the first embodiment, the heel outer cushion 71 has an extension region 711 extending closer to the lower end portion of the upper 3 than the heel inner cushion 72.
Hereinafter, the shoe 1A of the present invention will be described in detail after explaining each of the sole 2, the upper 3 and the cushion 6A.
＜ソール＞
　ソール２は、地面に接地するアウトソールを含むシューズ１Ａの構成部材である。
　ソール２の材質及び構造は、従来公知の材質及び構造を採用できる。
　例えば、ソール２の材質は、ゴム、エラストマー、合成樹脂、又はこれらの混合物などが挙げられる。ソール２は、発泡体、非発泡体又は発泡体と非発泡体の積層物でもよい。
　ソール２の構造は、１層構造でもよく、２層以上の複層構造であってもよい。ソール２は、アウトソールのみからなる、又は、アウトソールとミッドソールを有する積層構造である。例えば、複層構造のソール２は、地面に接地する部分であるアウトソールと、アウトソールの上面側に積層されたミッドソールと、を有する。
　ソール２の下面（接地する部分）には、必要に応じて、任意の適切な凹凸（図示しない）が形成される。
　また、図３を参照して、ソール２の上面に、必要に応じて、中敷き２１が設けられていてもよい。 <Sole>
The sole 2 is a component of the shoe 1A including an outsole that touches the ground.
As the material and structure of the sole 2, conventionally known materials and structures can be adopted.
For example, the material of the sole 2 may be rubber, an elastomer, a synthetic resin, or a mixture thereof. The sole 2 may be a foam, a non-foam, or a laminate of a foam and a non-foam.
The structure of the sole 2 may be a one-layer structure or a multi-layer structure having two or more layers. The sole 2 has a laminated structure consisting of only the outsole or having an outsole and a midsole. For example, the multi-layered sole 2 has an outsole that is a portion that comes into contact with the ground and a midsole that is laminated on the upper surface side of the outsole.
If necessary, any appropriate unevenness (not shown) is formed on the lower surface (the portion to be grounded) of the sole 2.
Further, referring to FIG. 3, an insole 21 may be provided on the upper surface of the sole 2 as needed.
＜アッパー＞
　アッパー３は、少なくとも足の甲及び踵を覆うシューズ１Ａの構成部材であり、好ましくは、足のつま先を含む足の甲及び踵を覆う部材である。
　アッパー３は、ラストを用いて成形される。
　アッパー３を各部位毎に大別すると、アッパー３は、足のつま先及び甲に対応する甲部３１と、足の踵に対応する踵部３３と、前記甲部３１と踵部３３の間の中間部３２と、からなる。甲部３１は、足の前端部を含んで足の甲を覆う部位であり、踵部３３は、足の後端部を含んで足の踵を覆う部位であり、中間部３２は、アッパー３から前記甲部３１と踵部３３を除いた残りの部位である（図４及び図５参照）。
　なお、図４及び図５では、足の骨及び足の外形を実線で表し、ソール２、アッパー３及びクッション６Ａを二点鎖線で表している。
　ここで、足の甲及び踵は、標準的な人体の足骨格構造に基づいて特定できる。足の前端部を含む足の甲は、標準的な人体の足の第１乃至５基節骨９１及び第１乃至５中足骨９２の部分であり、足の踵は、踵骨９３の部分である。 <Upper>
The upper 3 is a component of the shoe 1A that covers at least the instep and the heel, and is preferably a member that covers the instep and the heel including the toes of the foot.
The upper 3 is molded using the last.
When the upper 3 is roughly classified for each part, the upper 3 is between the instep 31 corresponding to the toes and instep of the foot, the heel 33 corresponding to the heel of the foot, and the instep 31 and the heel 33. It is composed of an intermediate portion 32 and. The instep 31 is a portion that includes the front end of the foot and covers the instep, the heel 33 is a portion that includes the rear end of the foot and covers the heel of the foot, and the middle portion 32 is the upper 3. It is the remaining part excluding the instep 31 and the heel 33 from the above (see FIGS. 4 and 5).
In FIGS. 4 and 5, the bones of the foot and the outer shape of the foot are represented by solid lines, and the sole 2, the upper 3 and the cushion 6A are represented by the alternate long and short dash lines.
Here, the instep and heel can be identified based on the standard human foot skeletal structure. The instep, including the anterior end of the foot, is the portion of the standard human foot's 1st to 5th proximal phalanx 91 and 1st to 5th metatarsal, and the heel of the foot is the portion of the calcaneus 93. Is.
　アッパー３の踵部３３は、図４及び図５に示すように、足の踵骨９３の外側から内側にかけて覆う部位であり、図２に示す上面視で略Ｕ字状を成す部位である。
　図６は、アッパー３の踵部３３を三方側（外側、後側、内側）から見たときの各図を順に並べた参考図である。図６では、クッション６Ａを実線で表し、ソール２及びアッパー３を二点鎖線で表している。
　アッパー３の踵部３３は、概念的に、後側から見た幅方向中央仮想線を基準にして２つの部位に分けることができる。すなわち、アッパー３の踵部３３は、概念上、幅方向中央仮想線よりも外側に位置し且つ足の踵の外側を覆う外側部位３３１と、幅方向中央仮想線よりも内側に位置し且つ足の踵の内側を覆う内側部位３３２と、からなる。
　前記幅方向中央仮想線は、アッパー３の踵部３３の幅方向中央部を通り且つ上下方向に延びる仮想の線である。従って、幅方向中央仮想線は、踵部３３の幅方向中央部を含んでいる。以下、「幅方向中央仮想線」を「中央仮想線」という。図６の背面図（２）の細破線は、アッパー３の踵部３３の中央仮想線を示すが、実際に、このような線が引かれているわけではないことに留意されたい。 As shown in FIGS. 4 and 5, the heel portion 33 of the upper 3 is a portion that covers the heel bone 93 of the foot from the outside to the inside, and is a portion that forms a substantially U shape in the top view shown in FIG.
FIG. 6 is a reference view in which the heel portions 33 of the upper 3 are arranged in order when viewed from three sides (outside, rear side, inside). In FIG. 6, the cushion 6A is represented by a solid line, and the sole 2 and the upper 3 are represented by a two-dot chain line.
The heel portion 33 of the upper 3 can be conceptually divided into two portions with reference to the central virtual line in the width direction viewed from the rear side. That is, the heel portion 33 of the upper 3 is conceptually located outside the central virtual line in the width direction and covers the outside of the heel of the foot, and is located inside the central virtual line in the width direction and the foot. It consists of an inner portion 332 that covers the inside of the heel of the foot.
The width direction central virtual line is a virtual line that passes through the width direction center portion of the heel portion 33 of the upper 3 and extends in the vertical direction. Therefore, the width direction central virtual line includes the width direction center portion of the heel portion 33. Hereinafter, the "center virtual line in the width direction" is referred to as a "central virtual line". It should be noted that the dashed line in the back view (2) of FIG. 6 shows the central virtual line of the heel 33 of the upper 3, but such a line is not actually drawn.
　アッパー３の上側には、使用者の足を挿入するための足挿入部３５が開口されている。例えば、前記足挿入部３５は、アッパー３の上端部３５ａで画成されている。足挿入部３５を画成するアッパー３の上端部３５ａの側面視形状は、図４及び図５に示すように、下向きに膨らんだ弧状とされている。図１及び図２に示すように、前記足挿入部３５に連通して、前後方向に延びる開口部３６が形成されている。前記開口部３６は、アッパー３の上前端部３６ａで画成されている。前記上前端部３６ａは、前記上端部３５ａに連続しており、図２に示すように、例えば、平面視略Ｕ字状に形成されている。前記上前端部３６ａの面内には、複数のハトメ孔３７が前後方向に並んで形成されている。このハトメ孔３７には、靴紐３８が通されている。なお、各図において、靴紐３８の一部を省略している。
　さらに、必要に応じて、アッパー３は、シュータン（図示せず）を有していてもよい。シュータンは、前記開口部３６を画成する上前端部３６ａから連続して舌状に延びる部位である。シュータンを設けることにより、前記略Ｕ字状の開口部３６から足の甲が露出することを防止できる。
　なお、図示例では、靴紐３８を取り付けるタイプのアッパー３を例示しているが、本発明のアッパー３は、靴紐３８を取り付けるタイプに限られず、靴紐を有さないタイプでもよい（図示せず）。また、図示例では、開口部３６を有するタイプのアッパー３を例示しているが、本発明のアッパー３は、開口部を有さないタイプであってもよい（図示せず）。 A foot insertion portion 35 for inserting the user's foot is opened on the upper side of the upper 3. For example, the foot insertion portion 35 is defined by the upper end portion 35a of the upper 3. As shown in FIGS. 4 and 5, the side view shape of the upper end portion 35a of the upper 3 that defines the foot insertion portion 35 is an arc shape that bulges downward. As shown in FIGS. 1 and 2, an opening 36 extending in the front-rear direction is formed so as to communicate with the foot insertion portion 35. The opening 36 is defined by the upper front end portion 36a of the upper 3. The upper front end portion 36a is continuous with the upper end portion 35a, and as shown in FIG. 2, for example, is formed in a substantially U shape in a plan view. A plurality of eyelet holes 37 are formed side by side in the front-rear direction in the plane of the upper front end portion 36a. A shoelace 38 is passed through the eyelet hole 37. In each figure, a part of the shoelace 38 is omitted.
Further, if necessary, the upper 3 may have a tongue (not shown). The tongue is a portion that extends continuously in a tongue shape from the upper front end portion 36a that defines the opening 36. By providing the tongue, it is possible to prevent the instep from being exposed from the substantially U-shaped opening 36.
In the illustrated example, the upper 3 of the type to which the shoelace 38 is attached is illustrated, but the upper 3 of the present invention is not limited to the type to which the shoelace 38 is attached, and may be a type having no shoelace (Fig.). Not shown). Further, in the illustrated example, the upper 3 of the type having the opening 36 is illustrated, but the upper 3 of the present invention may be the type having no opening (not shown).
　アッパー３の下端部３ｂは、ソール２の周囲に取り付けられている。アッパー３の下端部３ｂをソール２に取り付ける方法は、特に限定されず、従来公知の方法を採用でき、例えば、接着剤を用いた接着、縫製などが挙げられる。なお、アッパー３とソール２が熱融着可能な材質から形成されている場合には、熱融着によってアッパー３の下端部３ｂをソール２に取り付けてもよい。なお、アッパーは、中底（図示せず）を備えていてもよい。 The lower end 3b of the upper 3 is attached around the sole 2. The method of attaching the lower end portion 3b of the upper 3 to the sole 2 is not particularly limited, and a conventionally known method can be adopted, and examples thereof include adhesion and sewing using an adhesive. When the upper 3 and the sole 2 are made of a material that can be heat-sealed, the lower end portion 3b of the upper 3 may be attached to the sole 2 by heat fusion. The upper may include an insole (not shown).
　アッパー３の形成材料は、特に限定されず、従来公知のシート材が挙げられる。
　前記シート材としては、織物又は編物などの布地、合成樹脂シート、網目状シート、及びこれらの複合シートなどが挙げられる。
　アッパー３は、前記シート材を適宜な形状に裁断し、そのシート材をラストを用いて立体的に縫製又は接着することによって形成されている。
　また、アッパー３の少なくとも踵部３３は、クッション６Ａを挿入するため、袋状に形成されている。例えば、前記踵部３３は、少なくとも２枚のシート材（第１面シート材３９１と第２面シート材３９２）から形成されている。第１面シート材３９１と第２面シート材３９２の間に、クッション６Ａを挿入する袋部３９が形成されている。つまり、アッパー３の踵部３３は、袋部３９を有し、前記袋部３９は、第１面シート材３９１と第２面シート材３９２で画成されている。
　ここで、本明細書において、「第２面」は、足と接触する側の面を指し、「第１面」は、第２面とは反対側の面を指す。 The material for forming the upper 3 is not particularly limited, and examples thereof include conventionally known sheet materials.
Examples of the sheet material include fabrics such as woven fabrics and knitted fabrics, synthetic resin sheets, mesh sheets, and composite sheets thereof.
The upper 3 is formed by cutting the sheet material into an appropriate shape and sewing or adhering the sheet material three-dimensionally using the last.
Further, at least the heel portion 33 of the upper 3 is formed in a bag shape for inserting the cushion 6A. For example, the heel portion 33 is formed of at least two sheet materials (first surface sheet material 391 and second surface sheet material 392). A bag portion 39 into which the cushion 6A is inserted is formed between the first surface sheet material 391 and the second surface sheet material 392. That is, the heel portion 33 of the upper 3 has a bag portion 39, and the bag portion 39 is defined by the first surface sheet material 391 and the second surface sheet material 392.
Here, in the present specification, the "second surface" refers to the surface on the side in contact with the foot, and the "first surface" refers to the surface on the side opposite to the second surface.
＜クッション＞
　クッション６Ａは、アッパー３と足の隙間を埋め、踵部のフィット性を高める部材である。
　クッション６Ａは、アッパー３の少なくとも踵部３３に設けられる。なお、必要に応じて、アッパー３の部位のうち、踵部３３以外の部位に任意の適切な形状のクッションを設けてもよい（図示せず）。 <Cushion>
The cushion 6A is a member that fills the gap between the upper 3 and the foot and enhances the fit of the heel portion.
The cushion 6A is provided on at least the heel portion 33 of the upper 3. If necessary, a cushion having an arbitrary shape may be provided on a portion of the upper 3 other than the heel portion 33 (not shown).
　クッション６Ａは、可撓性及び復元性を有する材料で形成されている。前記可撓性は、外力（荷重）が加わると容易に変形する性質をいい、前記復元性は、外力が取り除かれると実質的に元の形状に戻る性質をいう。
　クッション６Ａは、例えば、スポンジ、繊維が無秩序に積層された綿状塊物などから形成され、好ましくは、スポンジから形成される。
　スポンジは、気泡を有する塊状物であって可撓性及び復元性を有する塊状物である。スポンジとしては、例えば、合成樹脂、ゴム、エラストマーなどの発泡体が挙げられる。
　クッション６Ａの硬度は、特に限定されないが、例えば、Ｆ硬度で２０度～１２０度であり、好ましくは４０度～１００度であり、より好ましくは７０度～９０度である。
　前記Ｆ硬度は、アスカーゴム硬度計Ｆ型（高分子計器株式会社製）によって測定して得られる値である。 Cushion 6A is made of a flexible and resilient material. The flexibility refers to the property of being easily deformed when an external force (load) is applied, and the stability refers to the property of substantially returning to the original shape when the external force is removed.
The cushion 6A is formed of, for example, a sponge, a cotton-like mass in which fibers are randomly laminated, or the like, and is preferably formed of a sponge.
The sponge is a mass having air bubbles and has flexibility and resilience. Examples of the sponge include foams such as synthetic resin, rubber, and elastomer.
The hardness of the cushion 6A is not particularly limited, but is, for example, an F hardness of 20 to 120 degrees, preferably 40 to 100 degrees, and more preferably 70 to 90 degrees.
The F hardness is a value obtained by measuring with an Asker rubber hardness tester F type (manufactured by Polymer Meter Co., Ltd.).
　図７乃至図１０は、アッパーに装着する前のクッション６Ａを示している。図７は、そのクッション６Ａを第１面６１側から見た平面図であり、図８は、同クッション６Ａを第２面６２側から見た平面図であり、図９及び図１０は、その断面の拡大図である。
　図７及び図８の細破線は、クッション６Ａをアッパー３の踵部３３に装着したときの、上述の踵部３３の中央仮想線に対応する。なお、実際上、クッション６Ａに、このような線が引かれているわけではないことに留意されたい。
　本実施形態では、クッション６Ａの少なくとも下方部は、前記中央仮想線（細破線）を基準にして、非対称形である。 7 to 10 show the cushion 6A before being attached to the upper. FIG. 7 is a plan view of the cushion 6A viewed from the first surface 61 side, FIG. 8 is a plan view of the cushion 6A viewed from the second surface 62 side, and FIGS. 9 and 10 are the plan views thereof. It is an enlarged view of the cross section.
The dashed lines in FIGS. 7 and 8 correspond to the above-mentioned central virtual line of the heel portion 33 when the cushion 6A is attached to the heel portion 33 of the upper 3. It should be noted that such a line is not actually drawn on the cushion 6A.
In the present embodiment, at least the lower portion of the cushion 6A is asymmetrical with respect to the central virtual line (thin broken line).
　クッション６Ａは、前記中央仮想線を基準にして、中央仮想線よりも外側に位置する踵外側クッション７１と、中央仮想線よりも内側に位置する踵内側クッション７２と、を有する。踵外側クッション７１と踵内側クッション７２は、一体的に形成されている。
　踵外側クッション７１は、アッパー３の踵部３３の外側部位３３１に装着され、踵内側クッション７２は、アッパー３の踵部３３の内側部位３３２に装着される。
　クッション６Ａの踵外側クッション７１は、踵内側クッション７２よりも下側に延出された延出領域７１１を有する。
　この踵外側クッション７１の延出領域７１１は、図７及び図８に示すように、中央仮想線を紙面上下方向と平行にしたときに、踵内側クッション７２の下縁７２ｂよりも下側に出ている部分をいう。例えば、延出領域７１１は、中央仮想線にて踵外側クッション７１を踵内側クッション７２に折り返したときに、踵内側クッション７２の下縁７２ｂよりも下側に出ている部分に相当する。 The cushion 6A has a heel outer cushion 71 located outside the central virtual line and a heel inner cushion 72 located inside the central virtual line with reference to the central virtual line. The heel outer cushion 71 and the heel inner cushion 72 are integrally formed.
The heel outer cushion 71 is attached to the outer portion 331 of the heel portion 33 of the upper 3, and the heel inner cushion 72 is attached to the inner portion 332 of the heel portion 33 of the upper 3.
The heel outer cushion 71 of the cushion 6A has an extension region 711 extending below the heel inner cushion 72.
As shown in FIGS. 7 and 8, the extension area 711 of the heel outer cushion 71 protrudes below the lower edge 72b of the heel inner cushion 72 when the central virtual line is parallel to the vertical direction of the paper surface. The part that is. For example, the extension area 711 corresponds to a portion protruding below the lower edge 72b of the heel inner cushion 72 when the heel outer cushion 71 is folded back to the heel inner cushion 72 on the central virtual line.
　クッション６Ａの概略的な平面視形状は、幅方向を長軸とする横長状である。
　踵外側クッション７１の上縁７１ａ及び踵内側クッション７２の上縁７２ａは、それぞれ独立して、平面視で幅方向と略平行な直線状に形成されていてもよいが、図示例では、いずれも下側に膨らんだ弧状に形成されている。踵外側クッション７１の上縁７１ａ及び踵内側クッション７２の上縁７２ａが弧状に形成されていることにより、それらの上縁７１ａ．７２ａをアッパー３の足挿入部３５の形状に沿わせつつクッション６Ａをアッパー３の踵部３３に装着できる。
　ただし、踵外側クッション７１の上縁７１ａ及び踵内側クッション７２の上縁７２ａの平面視形状は、図示例に限られず、適宜変更してもよい。 The schematic plan-view shape of the cushion 6A is a horizontally long shape having a long axis in the width direction.
The upper edge 71a of the heel outer cushion 71 and the upper edge 72a of the heel inner cushion 72 may be independently formed in a straight line substantially parallel to the width direction in a plan view, but in the illustrated example, both of them may be formed. It is formed in an arc shape that bulges downward. Since the upper edge 71a of the heel outer cushion 71 and the upper edge 72a of the heel inner cushion 72 are formed in an arc shape, the upper edge 71a. The cushion 6A can be attached to the heel portion 33 of the upper 3 while the 72a follows the shape of the foot insertion portion 35 of the upper 3.
However, the plan-view shapes of the upper edge 71a of the heel outer cushion 71 and the upper edge 72a of the heel inner cushion 72 are not limited to the illustrated examples, and may be changed as appropriate.
　踵外側クッション７１の延出領域７１１の下縁は、平面視で下側に膨らんだ弧状に形成されている。詳しくは、踵外側クッション７１の延出領域７１１の下縁７１１ｂは、最も下側に位置する最下縁７１３ｂと、最下縁７１３ｂから踵外側クッション７１の前側に向かって上斜めに延びる弧状縁７１２ｂと、最下縁７１３ｂから踵外側クッション７１の後側に向かって上斜めに延びる弧状縁７１４ｂと、を有する。下縁７１１ｂが弧状に形成された前記延出領域７１１により、アッパー３の踵部３３と足の踵の隙間を効果的に埋めることができる。特に、延出領域７１１の下縁７１１ｂは、全体的に弧状に形成されていることが好ましく、さらに、踵外側クッション７１の下縁７１ｂは、全体的に弧状に形成されていることがより好ましい。踵外側クッション７１の下縁７１ｂは、延出領域７１１の下縁７１１ｂを含んでいる。
　ただし、延出領域７１１の下縁７１１ｂの平面視形状は、弧状に限られず、適宜変更できる。例えば、延出領域７１１の下縁７１１ｂが、下側に尖った略Ｖ字状に形成されていてもよい。また、延出領域７１１の下縁７１１ｂが、幅方向と略平行な直線状に形成されている部分を含んでいてもよく、或いは、全体的に幅方向と略平行な直線状に形成されていてもよい。
　なお、クッション６Ａにおいて、前側は、中央仮想線から離れる側を指し、後側は、その反対側（中央仮想線側）を指す。 The lower edge of the extension region 711 of the heel outer cushion 71 is formed in an arc shape bulging downward in a plan view. Specifically, the lower edge 711b of the extension region 711 of the heel outer cushion 71 has a lowermost edge 713b located at the lowermost side and an arc-shaped edge extending diagonally upward from the lowermost edge 713b toward the front side of the heel outer cushion 71. It has a 712b and an arc-shaped edge 714b extending diagonally upward from the lowermost edge 713b toward the rear side of the heel outer cushion 71. The extension region 711 in which the lower edge 711b is formed in an arc shape can effectively fill the gap between the heel portion 33 of the upper 3 and the heel of the foot. In particular, the lower edge 711b of the extension region 711 is preferably formed in an arc shape as a whole, and the lower edge 71b of the heel outer cushion 71 is more preferably formed in an arc shape as a whole. .. The lower edge 71b of the heel outer cushion 71 includes the lower edge 711b of the extension region 711.
However, the plan view shape of the lower edge 711b of the extension region 711 is not limited to the arc shape and can be changed as appropriate. For example, the lower edge 711b of the extension region 711 may be formed in a substantially V-shape pointed downward. Further, the lower edge 711b of the extension region 711 may include a portion formed in a straight line substantially parallel to the width direction, or is formed in a straight line substantially parallel to the width direction as a whole. You may.
In the cushion 6A, the front side refers to the side away from the central virtual line, and the rear side refers to the opposite side (central virtual line side).
　踵内側クッション７２の下縁７２ｂは、平面視で、全体的に前側から後側に向かって下斜めに延びる弧状又は直線状に形成されている。図示例では、踵内側クッション７２の下縁７２ｂは、平面視で、全体的に前側から後側に向かって下斜めに延びる弧状に形成されている。
　ただし、踵内側クッション７２の平面視形状は、下斜めに延びる弧状又は直線状に限られず、適宜変更できる。例えば、踵内側クッション７２の下縁７２ｂが、幅方向と略平行な直線状に形成されている部分を含んでいてもよく、或いは、全体的に幅方向と略平行な直線状に形成されていてもよい。
　なお、図示例では、踵外側クッション７１の上縁７１ａと踵内側クッション７２の上縁７２ａの境界付近に（中央仮想線の付近に）、刻み凹部７９が形成されている。同様に、踵外側クッション７１の下縁７１ｂと踵内側クッション７２の下縁７２ｂの境界付近に（中央仮想線の付近に）、刻み凹部７９が形成されている。このような刻み凹部７９を形成することにより、前記刻み凹部７９を目印にして、クッション６Ａをアッパー３の踵部３３の所定位置に容易に装着できる。ただし、前記刻み凹部７９が形成されていなくてもよい。 The lower edge 72b of the heel inner cushion 72 is formed in an arc shape or a straight line extending diagonally downward from the front side to the rear side as a whole in a plan view. In the illustrated example, the lower edge 72b of the heel inner cushion 72 is formed in an arc shape extending diagonally downward from the front side to the rear side as a whole in a plan view.
However, the plan-view shape of the heel inner cushion 72 is not limited to an arc shape or a straight line extending diagonally downward, and can be changed as appropriate. For example, the lower edge 72b of the heel inner cushion 72 may include a portion formed in a straight line substantially parallel to the width direction, or may be formed in a straight line substantially parallel to the width direction as a whole. You may.
In the illustrated example, a notched recess 79 is formed near the boundary between the upper edge 71a of the heel outer cushion 71 and the upper edge 72a of the heel inner cushion 72 (near the central virtual line). Similarly, a notched recess 79 is formed near the boundary between the lower edge 71b of the heel outer cushion 71 and the lower edge 72b of the heel inner cushion 72 (near the central virtual line). By forming such a notched recess 79, the cushion 6A can be easily attached to a predetermined position of the heel portion 33 of the upper 3 by using the notched recess 79 as a mark. However, the notched recess 79 may not be formed.
　前記クッション６Ａに関して、前記最下縁７１３ｂにおける踵外側クッション７１の上下方向長さＨ１は、幅方向において前記最下縁７１３ｂに対応する踵内側クッション７２の上下方向長さＨ２よりも大きい。なお、最下縁７１３ｂにおける踵外側クッション７１の上下方向長さＨ１は、最下縁７１３ｂと上縁７１ａとの間の上下方向長さを意味する。幅方向において最下縁７１３ｂに対応する踵内側クッション７２の上下方向長さＨ２は、中央仮想線にて踵外側クッション７１を踵内側クッション７２に折り返したときに前記最下縁７１３ｂにおける踵外側クッション７１の上下方向長さに重なる、踵内側クッション７２の下縁７２ｂと上縁７２ａの間の上下方向長さを意味する。このように踵外側クッション７１の上下方向長さが大きいクッション６Ａは、それをアッパー３の踵部３３に装着した際に、踵外側クッション７１の延出領域７１１をアッパー３の下端部３ｂ近くに容易に位置させることができる。
　例えば、前記踵外側クッション７１の上下方向長さＨ１は、前記踵内側クッション７２の上下方向長さＨ２よりも５ｍｍ以上長く、好ましくは、８ｍｍ以上長く、より好ましくは１０ｍｍ以上長い。 With respect to the cushion 6A, the vertical length H1 of the heel outer cushion 71 at the lowermost edge 713b is larger than the vertical length H2 of the heel inner cushion 72 corresponding to the lowermost edge 713b in the width direction. The vertical length H1 of the heel outer cushion 71 at the lowermost edge 713b means the vertical length between the lowermost edge 713b and the upper edge 71a. The vertical length H2 of the heel inner cushion 72 corresponding to the lowermost edge 713b in the width direction is the heel outer cushion at the lowermost edge 713b when the heel outer cushion 71 is folded back to the heel inner cushion 72 at the central virtual line. It means the vertical length between the lower edge 72b and the upper edge 72a of the heel inner cushion 72, which overlaps with the vertical length of 71. When the cushion 6A having a large vertical length of the heel outer cushion 71 is attached to the heel portion 33 of the upper 3, the extension area 711 of the heel outer cushion 71 is located near the lower end portion 3b of the upper 3. It can be easily positioned.
For example, the vertical length H1 of the heel outer cushion 71 is longer than the vertical length H2 of the heel inner cushion 72 by 5 mm or more, preferably 8 mm or more, and more preferably 10 mm or more.
　図９及び図１０を参照して、クッション６Ａの厚みは、均等であってもよいが、図示例では、クッション６Ａは、上下方向において厚み差を有する。例えば、クッション６Ａの下方部（踵外側クッション７１の下方部及び踵内側クッション７２の下方部）は、その厚みが下側に向かって単調減少している。なお、踵外側クッション７１の下方部は、延出領域７１１の下方部を含んでおり、従って、延出領域７１１は、その厚みが下側に向かって単調減少している。
　ここで、本明細書において、単調減少は、広義の単調減少を意味する。
　前記厚みが下側に向かって単調減少しているとは、下側に向かって厚みが次第に小さくなっている場合、下側に向かって次第に厚みが小さくなっている部分と厚みが均等な部分を有する場合、及び、厚みが均等な部分とそれよりも厚みが小さいが均等な厚みの部分と前記２つの均等厚み部分の間に直角の段差部分がある場合、を含む意味である。 With reference to FIGS. 9 and 10, the thickness of the cushion 6A may be uniform, but in the illustrated example, the cushion 6A has a thickness difference in the vertical direction. For example, the thickness of the lower portion of the cushion 6A (the lower portion of the heel outer cushion 71 and the lower portion of the heel inner cushion 72) decreases monotonically toward the lower side. The lower portion of the heel outer cushion 71 includes the lower portion of the extension region 711. Therefore, the thickness of the extension region 711 decreases monotonically toward the lower side.
Here, in the present specification, monotonous decrease means monotonous decrease in a broad sense.
When the thickness is monotonically decreasing toward the lower side, when the thickness is gradually reduced toward the lower side, a portion where the thickness is gradually reduced toward the lower side and a portion where the thickness is equal to the lower side are defined. It is meant to include a case where the portion has an equal thickness and a case where there is a right-angled step portion between the portion having an equal thickness and a portion having a smaller thickness but an equal thickness and the two equal thickness portions.
　図示例では、クッション６Ａの下方部（踵外側クッション７１の下方部及び踵内側クッション７２の下方部）の厚みが、下側に向かって次第に小さくなるように形成されている。詳しくは、クッション６Ａは、肉厚の観点では、均等な厚みの均等部と、下側に向かって厚みが次第に小さくなる単調減少部と、からなる。同様に、延出領域７１１は、肉厚の観点では、均等な厚みの均等部と、下側に向かって厚みが次第に小さくなる単調減少部と、からなる。単調減少部は、テーパ状に形成されている。
　なお、クッション６Ａ及び延出領域７１１は、それぞれ独立して、全体的に下側に向かって厚みが次第に小さくなっていてもよい。 In the illustrated example, the thickness of the lower portion of the cushion 6A (the lower portion of the heel outer cushion 71 and the lower portion of the heel inner cushion 72) is formed so as to gradually decrease toward the lower side. Specifically, from the viewpoint of wall thickness, the cushion 6A includes an even portion having an even thickness and a monotonically decreasing portion whose thickness gradually decreases toward the lower side. Similarly, the extension region 711 is composed of an even portion having a uniform thickness and a monotonically decreasing portion whose thickness gradually decreases toward the lower side in terms of wall thickness. The monotonous reduction portion is formed in a tapered shape.
The cushion 6A and the extension region 711 may be independently reduced in thickness toward the lower side as a whole.
　クッション６Ａの厚みの具体的な数値は、特に限定されず、適宜設定できる。例えば、クッション６Ａの厚み（アッパーに装着する前のクッション６Ａの厚み）は、３ｍｍ～３０ｍｍであり、好ましくは８ｍｍ～２０ｍｍである。クッション６Ａの厚みが均等でない場合には、前記クッション６Ａの厚みは、その最大値を意味する。 The specific value of the thickness of the cushion 6A is not particularly limited and can be set as appropriate. For example, the thickness of the cushion 6A (thickness of the cushion 6A before being attached to the upper) is 3 mm to 30 mm, preferably 8 mm to 20 mm. When the thickness of the cushion 6A is not uniform, the thickness of the cushion 6A means the maximum value thereof.
　また、延出領域７１１は、その単位面積当たりの重量が下側に向かって単調減少している。
　前記単位面積当たりの重量が下側に向かって単調減少しているとは、下側に向かって単位重量が次第に小さくなっている場合、下側に向かって単位重量が次第に小さくなっている部分と単位重量が均等な部分を有する場合、及び、単位重量が均等な部分とそれよりも単位重量が小さいが単位重量が均等な部分とがある場合、を含む意味である。
　単位面積当たりの重量が下側に向かって単調減少している延出領域７１１は、様々な方法で構成できる
　例えば、上述のように、延出領域７１１の厚みを下側に向かって単調減少させることにより、単位面積当たりの重量が下側に向かって単調減少している延出領域７１１を構成できる。
　単位面積当たりの重量を下側に向かって単調減少させることにより、外力が加わったときに、下側ほど変形し易く且つ厚みが小さくなる延出領域７１１を構成できる。 Further, the weight per unit area of the extension area 711 is monotonically decreasing toward the lower side.
The term that the weight per unit area is monotonically decreasing toward the lower side means that when the unit weight is gradually reduced toward the lower side, the unit weight is gradually reduced toward the lower side. It is meant to include a case where the unit weight has an equal portion and a case where there is a portion where the unit weight is equal and a portion where the unit weight is smaller but the unit weight is equal.
The extension area 711, whose weight per unit area is monotonically decreasing downward, can be configured in various ways. For example, as described above, the thickness of the extension area 711 is monotonically decreasing downward. This makes it possible to form an extension region 711 in which the weight per unit area is monotonically decreasing downward.
By monotonically reducing the weight per unit area toward the lower side, it is possible to form an extension region 711 that is more easily deformed and has a smaller thickness toward the lower side when an external force is applied.
＜シューズの詳細＞
　第１実施形態のシューズ１Ａは、アッパー３の踵部３３に、図７乃至図１０に示すクッション６Ａを装着したものである。
　図１乃至図６を参照して、クッション６Ａは、アッパー３の踵部３３に装着されている。図３に示すように、クッション６Ａは、アッパー３の袋部３９内に挿入されている。クッション６Ａは、外力が加わらない状態では、図７乃至図１０に示すように平坦であるが、容易に湾曲させることができる。クッション６Ａは、アッパー３の踵部３３に沿うように、上面視で略Ｕ字状に湾曲させた状態で袋部３９内に挿入して装着されている。なお、クッション６Ａの第２面６２が足に接する側となるように、クッション６Ａは略Ｕ字状に湾曲されている。
　クッション６Ａの中央仮想線がアッパー３の踵部３３の中央仮想線にほぼ一致するように位置合わせして、クッション６Ａが装着されている。上述のように、上下に刻み凹部７９が形成されたクッション６Ａを用いることにより、前記位置合わせを容易に行える。 <Details of shoes>
In the shoe 1A of the first embodiment, the cushion 6A shown in FIGS. 7 to 10 is attached to the heel portion 33 of the upper 3.
With reference to FIGS. 1 to 6, the cushion 6A is attached to the heel portion 33 of the upper 3. As shown in FIG. 3, the cushion 6A is inserted into the bag portion 39 of the upper 3. The cushion 6A is flat as shown in FIGS. 7 to 10 when no external force is applied, but can be easily curved. The cushion 6A is inserted and mounted in the bag portion 39 in a state of being curved in a substantially U shape in a top view so as to be along the heel portion 33 of the upper 3. The cushion 6A is curved in a substantially U shape so that the second surface 62 of the cushion 6A is on the side in contact with the foot.
The cushion 6A is mounted so that the central virtual line of the cushion 6A is aligned with the central virtual line of the heel portion 33 of the upper 3. As described above, by using the cushion 6A in which the notched recesses 79 are formed at the top and bottom, the alignment can be easily performed.
　図１乃至図６を参照して、クッション６Ａがアッパー３の踵部３３に装着された状態において、踵外側クッション７１は、アッパー３の踵部３３の幅方向中央部よりも外側に配置され、且つ、踵内側クッション７２は、アッパー３の踵部３３の幅方向中央部よりも内側に配置されている。
　踵外側クッション７１の延出領域７１１は、踵内側クッション７２よりもアッパー３の下端部近くに延在されている。
　具体的には、踵外側クッション７１の延出領域７１１は、アッパー３の下端部３ｂにほぼ接する又は下端部３ｂ近くに位置している。踵内側クッション７２と対比すると、踵外側クッション７１の延出領域７１１は、踵内側クッション７２よりも下側に出ている。換言すると、踵外側クッション７１は、踵内側クッション７２よりもアッパー３の下端部３ｂ近くに延在されている延出領域７１１を有する。
　図４及び図６を参照して、延出領域７１１は、アッパー３の下端部３ｂに最も近い最下縁７１３ｂを有する。延出領域７１１は、この最下縁７１３ｂから踵外側クッション７１の前側に向かって上斜めに延びる弧状縁７１２ｂと、前記最下縁７１３ｂから前記踵外側クッション７１の後側に向かって上斜めに延びる弧状縁７１４ｂと、を有する。従って、延出領域７１１を有する踵外側クッション７１は、側面視において、足の踵の外側且つ下側を覆っている。
　前記延出領域７１１は、その最下縁７１３ｂがアッパー３の下端部３ｂにほぼ接するまで延在されていてもよい。或いは、図示のように、前記延出領域７１１は、その最下縁７１３ｂがアッパー３の下端部３ｂから離れていてもよい。最下縁７１３ｂがアッパー３の下端部３ｂから離れている場合、その最下縁７１３ｂとアッパー３の下端部３ｂとの距離（最下縁７１３ｂと下端部３ｂの上下方向における長さ）は、例えば、５ｍｍ～３５ｍｍであり、好ましくは１５ｍｍ～２５ｍｍである。
　特に、側面視で、延出領域７１１の最下縁７１３ｂがアッパー３の踵部３３の前後方向中央部に又は踵部３３の後側寄りに位置するように、踵外側クッション７１が配置されている。図示例では、図４及び図６の側面図（１）の側面視で、延出領域７１１の最下縁７１３ｂがアッパー３の踵部３３の後側寄りに位置するように、クッション６Ａが踵部３３に装着されている。 With reference to FIGS. 1 to 6, in a state where the cushion 6A is attached to the heel portion 33 of the upper 3, the heel outer cushion 71 is arranged outside the widthwise central portion of the heel portion 33 of the upper 3. Moreover, the heel inner cushion 72 is arranged inside the heel portion 33 of the upper 3 in the width direction.
The extension area 711 of the heel outer cushion 71 extends closer to the lower end of the upper 3 than the heel inner cushion 72.
Specifically, the extension region 711 of the heel outer cushion 71 is located substantially in contact with or near the lower end portion 3b of the upper 3. In comparison with the heel inner cushion 72, the extension area 711 of the heel outer cushion 71 protrudes below the heel inner cushion 72. In other words, the heel outer cushion 71 has an extension region 711 extending closer to the lower end 3b of the upper 3 than the heel inner cushion 72.
With reference to FIGS. 4 and 6, the extension region 711 has a bottom edge 713b closest to the lower end 3b of the upper 3. The extension region 711 has an arcuate edge 712b extending diagonally upward from the lowermost edge 713b toward the front side of the heel outer cushion 71, and an arc-shaped edge 712b extending upward diagonally from the lowermost edge 713b toward the rear side of the heel outer cushion 71. It has an extending arcuate edge 714b. Therefore, the heel lateral cushion 71 having the extension region 711 covers the lateral and inferior sides of the heel of the foot in lateral view.
The extension region 711 may extend until its lowermost edge 713b is substantially in contact with the lower end portion 3b of the upper 3. Alternatively, as shown in the figure, the lowermost edge 713b of the extension region 711 may be separated from the lower end portion 3b of the upper 3. When the lowermost edge 713b is separated from the lower end portion 3b of the upper 3, the distance between the lowermost edge 713b and the lower end portion 3b of the upper 3 (the length of the lowermost edge 713b and the lower end portion 3b in the vertical direction) is determined. For example, it is 5 mm to 35 mm, preferably 15 mm to 25 mm.
In particular, the heel outer cushion 71 is arranged so that the lowermost edge 713b of the extension region 711 is located at the center of the heel portion 33 in the anteroposterior direction of the upper 3 or closer to the rear side of the heel portion 33 in the lateral view. There is. In the illustrated example, the cushion 6A is located on the heel side of the heel portion 33 of the upper 3 so that the lowermost edge 713b of the extension region 711 is located closer to the rear side of the heel portion 33 of the upper 3 in the side view of the side view (1) of FIGS. 4 and 6. It is attached to the portion 33.
　また、最下縁７１３ｂにおける踵外側クッション７１の上下方向長さは、幅方向において最下縁７１３ｂに対応する踵内側クッション７２の上下方向長さよりも大きい。
　詳しくは、図６の側面図（１）の符号Ｈ１で示す長さは、最下縁７１３ｂにおける踵外側クッション７１の上下長さを示している。上述のように、前記上下方向長さは、最下縁７１３ｂと上縁７１ａとの間の長さである。図６の側面図（３）の符号Ｈ２で示す長さは、幅方向において最下縁７１３ｂに対応する踵内側クッション７２の上下方向長さを示している。この踵内側クッション７２の上下方向長さは、上述のように、踵内側クッション７２の下縁７２ｂと上縁７２ａとの間の長さである。踵内側クッション７２の上下方向長さの基準となる踵内側クッション７２の下縁７２ｂは、背面図（２）を参照して、中央仮想線と最下縁７１３ｂとの幅方向同長さと同長の位置をいう。最下縁７１３ｂにおける踵外側クッション７１の上下方向長さが踵内側クッション７２の上下方向長さよりも大きいことにより、延出領域７１１によってアッパー３の踵部３３と足の踵の隙間を効果的に埋めることができる。 Further, the vertical length of the heel outer cushion 71 at the lowermost edge 713b is larger than the vertical length of the heel inner cushion 72 corresponding to the lowermost edge 713b in the width direction.
Specifically, the length indicated by reference numeral H1 in the side view (1) of FIG. 6 indicates the vertical length of the heel outer cushion 71 at the lowermost edge 713b. As described above, the vertical length is the length between the lowermost edge 713b and the upper edge 71a. The length indicated by reference numeral H2 in the side view (3) of FIG. 6 indicates the vertical length of the heel inner cushion 72 corresponding to the lowermost edge 713b in the width direction. The vertical length of the heel inner cushion 72 is the length between the lower edge 72b and the upper edge 72a of the heel inner cushion 72 as described above. The lower edge 72b of the heel inner cushion 72, which is a reference for the vertical length of the heel inner cushion 72, has the same length as the width direction of the central virtual line and the lowermost edge 713b, referring to the rear view (2). The position of. Since the vertical length of the heel outer cushion 71 at the lowermost edge 713b is larger than the vertical length of the heel inner cushion 72, the extension area 711 effectively creates a gap between the heel portion 33 of the upper 3 and the heel of the foot. Can be filled.
＜本発明のシューズの利点＞
　上述のように、一般に、ラストを用いて作製したアッパーを有するシューズは、アッパーの踵部の外側に隙間が生じ、特に、アッパーの踵部と足の踵の外くるぶし下側との間に比較的大きな隙間が生じる傾向にある。アッパーの踵部の外側且つ下側に生じる隙間は、仮に、靴紐などでアッパーを締め付けても埋めることはできない。このように踵部の外側に隙間が生じるシューズは、例えば、使用者がシューズを履いた時やウォーキングの際などの日常生活を営む上で、履き心地が良好でない。
　本実施形態のシューズ１Ａは、踵外側クッション７１が踵内側クッション７２よりもアッパー３の下端部３ｂ近くに延在されている延出領域７１１を有する。かかる延出領域７１１は、アッパーの踵部の外側且つ下側に生じる隙間を埋めるため、本発明のシューズ１Ａは、フィット感に優れ、履き心地も良好である。
　本発明者等の研究によれば、ラストを用いて作製したアッパーを有するシューズは、特に、アッパーの踵部の前後方向中央部又は踵部の後側寄りに比較的大きな隙間が生じることが判っている。この点、本実施形態のシューズ１Ａは、延出領域７１１の最下縁７１３ｂがアッパー３の踵部３３の前後方向中央部に又は前記踵部３３の後側寄りに位置するように踵外側クッション７１が配置されている。このため、踵外側クッション７１の延出領域７１１によって前記アッパー３の踵部３３の外側且つ下側に生じる隙間を効果的に埋めることができる。 <Advantages of the shoes of the present invention>
As mentioned above, in general, shoes with an upper made using the last have a gap on the outside of the heel of the upper, especially in comparison between the heel of the upper and the underside of the outer ankle of the heel of the foot. There is a tendency for large gaps to occur. The gaps that occur on the outside and under the heel of the upper cannot be filled even if the upper is tightened with shoelaces or the like. Shoes having a gap on the outside of the heel portion in this way are not comfortable to wear in daily life such as when the user wears the shoes or when walking.
The shoe 1A of the present embodiment has an extension region 711 in which the heel outer cushion 71 extends closer to the lower end 3b of the upper 3 than the heel inner cushion 72. Since the extension region 711 fills a gap generated on the outer side and the lower side of the heel portion of the upper, the shoe 1A of the present invention has an excellent fit and a good comfort.
According to the research by the present inventors, it has been found that shoes having an upper produced by using the last have a relatively large gap in the center of the heel of the upper in the anteroposterior direction or toward the rear of the heel. ing. In this respect, the shoe 1A of the present embodiment has a heel outer cushion so that the lowermost edge 713b of the extension region 711 is located at the center of the heel portion 33 of the upper 3 in the front-rear direction or toward the rear side of the heel portion 33. 71 is arranged. Therefore, the extension region 711 of the heel outer cushion 71 can effectively fill the gap generated on the outer side and the lower side of the heel portion 33 of the upper 3.
　また、延出領域７１１が最下縁７１３ｂと最下縁７１３ｂの両側の弧状縁７１２ｂ，７１４ｂとを有するので、延出領域７１１が足の踵の外側に適合し易くなり、踵部３３の外側且つ下側に生じる隙間を延出領域７１１にて効果的に埋めることができる。特に、延出領域７１１の下縁７１１ｂの全体が弧状に形成されている場合、足を入れた時に延出領域７１１がスムースに変形し易く、さらに、延出領域７１１の下縁７１１ｂが足の踵に当たっても違和感を生じ難く、履き心地が向上する。また、ランニング中などの動作時において、シューズが足をホールドして動きに追従しやすいため、パフォーマンスの向上を期待できる。 Further, since the extension area 711 has the lowermost edge 713b and the arcuate edges 712b and 714b on both sides of the lowermost edge 713b, the extension area 711 easily fits the outside of the heel of the foot, and the outside of the heel portion 33. Moreover, the gap generated on the lower side can be effectively filled with the extension area 711. In particular, when the entire lower edge 711b of the extension area 711 is formed in an arc shape, the extension area 711 is easily deformed smoothly when the foot is put in, and the lower edge 711b of the extension area 711 is the foot. Even if it hits the heel, it does not cause discomfort and improves comfort. In addition, since the shoes can easily hold the foot and follow the movement during movement such as running, improvement in performance can be expected.
　さらに、延出領域７１１の単位面積当たりの重量が下側に向かって単調減少しているので、シューズ１Ａを履いたときに（延出領域７１１に外力が加わったときに）、延出領域７１１の下側ほど変形し易く且つ厚みが小さくなる。かかる延出領域７１１を含むクッション６Ａを有するシューズ１Ａは、踵の大きい使用者が履いた場合であっても、延出領域７１１が適宜変形するので、履き心地が良好である。 Further, since the weight per unit area of the extension area 711 decreases monotonically toward the lower side, when the shoe 1A is worn (when an external force is applied to the extension area 711), the extension area 711 is extended. The lower side is more easily deformed and the thickness becomes smaller. The shoe 1A having the cushion 6A including the extension area 711 is comfortable to wear because the extension area 711 is appropriately deformed even when worn by a user having a large heel.
＜第１実施形態の変形例＞
　例えば、図１１に示すように、前記延出領域７１１の面内に、独立した複数の穴部７３が形成されていてもよい。穴部７３は、クッション６Ａの厚み方向に貫通する貫通穴でもよく、或いは、厚み方向に貫通していない非貫通穴でもよい。図示例では、穴部７３は、貫通穴である。なお、穴部７３は、延出領域７１１のみに形成されていてもよいが、図示例のように、延出領域７１１を越える範囲にも１つ又は幾つかの穴部７３が形成されていてもよい。延出領域７１１に穴部７３を形成すると、穴部が形成されていない場合に比して延出領域７１１の可撓性が向上する。かかる延出領域７１１を含むクッション６Ａを有するシューズ１Ａは、踵の大きい使用者が履いた場合であっても、延出領域７１１が適宜変形するので、履き心地が向上する。
　穴部７３の形成密度は、適宜設定できる。例えば、穴部７３を下側に向かうに従って密に形成することにより、単位面積当たりの重量が下側に向かって単調減少している延出領域７１１を構成することもできる。 <Modified example of the first embodiment>
For example, as shown in FIG. 11, a plurality of independent hole portions 73 may be formed in the plane of the extension region 711. The hole 73 may be a through hole that penetrates in the thickness direction of the cushion 6A, or may be a non-through hole that does not penetrate in the thickness direction. In the illustrated example, the hole 73 is a through hole. The hole portion 73 may be formed only in the extension region 711, but as shown in the illustrated example, one or several hole portions 73 are also formed in a range beyond the extension region 711. May be good. When the hole portion 73 is formed in the extension region 711, the flexibility of the extension region 711 is improved as compared with the case where the hole portion is not formed. The shoe 1A having the cushion 6A including the extension area 711 is improved in comfort because the extension area 711 is appropriately deformed even when worn by a user having a large heel.
The formation density of the hole portion 73 can be appropriately set. For example, by forming the holes 73 densely toward the lower side, it is possible to form an extension region 711 in which the weight per unit area decreases monotonically toward the lower side.
　以下、本発明の第２乃至第５実施形態を説明するが、その説明に於いては、主として上述の実施形態と異なる構成及び効果について説明し、同様の構成などについては、用語をそのまま援用し、その構成の説明を省略する場合がある。従って、第２乃至第５実施形態において特に詳細な説明がない構成については、第１実施形態で説明した構成を援用できるものとする。 Hereinafter, the second to fifth embodiments of the present invention will be described. In the description thereof, configurations and effects different from those of the above-described embodiments will be mainly described, and the terms will be used as they are for the same configurations and the like. , The description of the configuration may be omitted. Therefore, for configurations that are not particularly detailed in the second to fifth embodiments, the configurations described in the first embodiment can be incorporated.
［第２実施形態］
　第２実施形態は、踵外側クッションの下方部の圧縮剛性が踵内側クッションの下方部の圧縮剛性よりも大きいシューズに関する。
　図１２は、アッパー３に装着する前の第２実施形態のクッション６Ｂを示している。図１２は、そのクッション６Ｂを第１面側から見た平面図である。同図の細破線は、クッション６Ｂをアッパー３の踵部３３に装着したときの中央仮想線に対応する。
　図１３は、第２実施形態のシューズ１Ｂの参考図であって、図６と同様に、アッパー３の踵部３３を三方側（外側、後側、内側）から見たときの各図を順に並べた参考図である。図１３では、クッション６Ｂを実線で表し、ソール２及びアッパー３を二点鎖線で表している。
　本実施形態のシューズ１Ｂも、第１実施形態と同様に、ソール２と、ソール２に下端部が取り付けられたアッパー３と、アッパー３の踵部３３に設けられたクッション６Ｂと、を有し、クッション６Ｂが、アッパー３の踵部３３の幅方向中央部よりも外側に配置された踵外側クッション７１と、前記アッパー３の踵部３３の幅方向中央部よりも内側に配置された踵内側クッション７２と、を有する。 [Second Embodiment]
The second embodiment relates to a shoe in which the compressive rigidity of the lower part of the heel outer cushion is larger than the compressive rigidity of the lower part of the heel inner cushion.
FIG. 12 shows the cushion 6B of the second embodiment before being attached to the upper 3. FIG. 12 is a plan view of the cushion 6B as viewed from the first surface side. The dashed line in the figure corresponds to the central virtual line when the cushion 6B is attached to the heel portion 33 of the upper 3.
FIG. 13 is a reference view of the shoe 1B of the second embodiment, and similarly to FIG. 6, each view when the heel portion 33 of the upper 3 is viewed from three sides (outside, rear side, inside) is in order. It is a side-by-side reference figure. In FIG. 13, the cushion 6B is represented by a solid line, and the sole 2 and the upper 3 are represented by a two-dot chain line.
Similar to the first embodiment, the shoe 1B of the present embodiment also has a sole 2, an upper 3 having a lower end portion attached to the sole 2, and a cushion 6B provided on the heel portion 33 of the upper 3. , The cushion 6B is arranged outside the center portion in the width direction of the heel portion 33 of the upper 3 and the inside of the heel portion arranged inside the center portion in the width direction of the heel portion 33 of the upper 3. It has a cushion 72 and.
＜クッション＞
　図１２を参照して、クッション６Ｂは、前記中央仮想線（細破線）を基準にして、略対称形である。
　ただし、本実施形態においても、クッション６Ｂは、中央仮想線を基準にして非対称形であってもよい。
　踵外側クッション７１は、前記中央仮想線よりも外側に位置し、踵内側クッション７２は、前記中央仮想線よりも内側に位置している。
　クッション６Ｂの幅方向中央部の下縁７８ｂを基準にして、踵外側クッション７１の下方部７１５と踵内側クッション７２の下方部７２５は、いずれもその下縁７８ｂよりも下側に延出されている。以下、本実施形態の欄において、「踵外側クッション７１の下方部７１５」を「外側下方部７１５」といい、「踵内側クッション７２の下方部」を「内側下方部７２５」という。
　外側下方部７１５の延出度合い（上下方向長さ）と内側下方部７２５の延出度合い（上下方向長さ）は、同じでもよく、或いは、異なっていてもよい。好ましくは、外側下方部７１５の延出度合いと内側下方部７２５の延出度合いが同じ、又は、外側下方部７１５の延出度合いが内側下方部７２５の延出度合いよりも大きい。
　図示例では、外側下方部７１５及び内側下方部７２５のいずれも、上記第１実施形態の延出領域７１１と同程度に延出されている。 <Cushion>
With reference to FIG. 12, the cushion 6B has a substantially symmetrical shape with respect to the central virtual line (thin broken line).
However, also in this embodiment, the cushion 6B may be asymmetrical with respect to the central virtual line.
The heel outer cushion 71 is located outside the central virtual line, and the heel inner cushion 72 is located inside the central virtual line.
With reference to the lower edge 78b of the central portion in the width direction of the cushion 6B, the lower portion 715 of the heel outer cushion 71 and the lower portion 725 of the heel inner cushion 72 both extend below the lower edge 78b. There is. Hereinafter, in the column of the present embodiment, the "lower portion 715 of the heel outer cushion 71" is referred to as the "outer lower portion 715", and the "lower portion of the heel inner cushion 72" is referred to as the "inner lower portion 725".
The degree of extension of the outer lower portion 715 (vertical length) and the degree of extension of the inner lower portion 725 (vertical length) may be the same or different. Preferably, the degree of extension of the outer lower portion 715 and the degree of extension of the inner lower portion 725 are the same, or the degree of extension of the outer lower portion 715 is larger than the degree of extension of the inner lower portion 725.
In the illustrated example, both the outer lower portion 715 and the inner lower portion 725 extend to the same extent as the extension region 711 of the first embodiment.
　剛性の観点では、外側下方部７１５は、その圧縮剛性が内側下方部７２５の圧縮剛性よりも大きい。
　ここで、圧縮剛性は、厚み方向への潰れ易さをいう。厚み方向に外力が加わった際に、圧縮剛性の大きい外側下方部７１５は、内側下方部７２５よりも潰れ難いと言える。 From the viewpoint of rigidity, the outer lower portion 715 has a higher compressive rigidity than the inner lower portion 725.
Here, the compressive rigidity refers to the ease of crushing in the thickness direction. When an external force is applied in the thickness direction, it can be said that the outer lower portion 715 having a large compressive rigidity is less likely to be crushed than the inner lower portion 725.
　内側下方部７２５よりも圧縮剛性の大きい外側下方部７１５は、下記（ａ）乃至（ｆ）の方法で構成できる。
　（ａ）例えば、図１２に示すように、内側下方部７２５に複数の穴部７４（貫通穴又は非貫通穴）を形成し、且つ、外側下方部７１５に穴部を形成しないことにより、内側下方部７２５よりも圧縮剛性の大きい外側下方部７１５を構成できる。
　（ｂ）内側下方部７２５に複数の穴部を形成し、且つ、外側下方部７１５に踵内側クッション７２よりも小さい穴部を形成する又は／及び踵内側クッション７２よりも個数の少ない穴部を形成することにより（図示せず）、内側下方部７２５よりも圧縮剛性の大きい外側下方部７１５を構成できる。
　（ｃ）クッション６Ｂがスポンジから構成される場合、外側下方部７１５を内側下方部７２５よりも発泡倍率の小さいスポンジで形成することにより、内側下方部７２５よりも圧縮剛性の大きい外側下方部７１５を構成できる。
　（ｄ）内側下方部７２５を比較的軟らかく且つ可撓性に優れた材質で形成し、且つ、外側下方部７１５をそれよりも硬い材質で形成する又はそれよりも硬い材質を含む複層構造物で形成する比較的軟らかく且つ可撓性に優れた材質で形成することにより、内側下方部７２５よりも圧縮剛性の大きい外側下方部７１５を構成できる。
（ｅ）上記（ａ）乃至（ｄ）から選ばれる少なくとも２つの方法を組み合わせる。
（ｆ）上記（ａ）乃至（ｄ）以外の方法、或いは、上記（ａ）乃至（ｄ）以外の方法と上記（ａ）乃至（ｄ）から選ばれる少なくとも１つの方法を組み合わせる。
　外側下方部７１５の圧縮剛性と内側下方部７２５の圧縮剛性の差は、特に限定されないが、例えば、外側下方部７１５の圧縮剛性は、内側下方部７２５の圧縮剛性の１．１倍～４倍であり、好ましくは２倍～３倍である。 The outer lower portion 715, which has a higher compressive rigidity than the inner lower portion 725, can be configured by the methods (a) to (f) below.
(A) For example, as shown in FIG. 12, by forming a plurality of holes 74 (through holes or non-through holes) in the inner lower portion 725 and not forming holes in the outer lower portion 715, the inner side is formed. The outer lower portion 715 having a higher compressive rigidity than the lower portion 725 can be configured.
(B) A plurality of holes are formed in the inner lower portion 725, and a hole smaller than the heel inner cushion 72 is formed in the outer lower portion 715, and / and a smaller number of holes are formed than the heel inner cushion 72. By forming (not shown), the outer lower portion 715 having a higher compressive rigidity than the inner lower portion 725 can be formed.
(C) When the cushion 6B is composed of a sponge, the outer lower portion 715 is formed of a sponge having a smaller foaming ratio than the inner lower portion 725, so that the outer lower portion 715 having a higher compression rigidity than the inner lower portion 725 is formed. Can be configured.
(D) A multi-layer structure in which the inner lower portion 725 is formed of a relatively soft and highly flexible material, and the outer lower portion 715 is formed of a harder material or a harder material. By forming the material which is relatively soft and has excellent flexibility, the outer lower portion 715 having a higher compressive rigidity than the inner lower portion 725 can be formed.
(E) Combine at least two methods selected from the above (a) to (d).
(F) A method other than the above (a) to (d), or a method other than the above (a) to (d) and at least one method selected from the above (a) to (d) are combined.
The difference between the compression rigidity of the outer lower portion 715 and the compression rigidity of the inner lower portion 725 is not particularly limited. For example, the compression rigidity of the outer lower portion 715 is 1.1 to 4 times the compression rigidity of the inner lower portion 725. It is preferably 2 to 3 times.
　本実施形態においても、踵外側クッション７１の下縁及び踵内側クッション７２の下縁の平面視形状は、特に限定されず、適宜な形状に形成される。
　例えば、外側下方部７１５の下縁７１５ｂは、上記第１実施形態の延出領域７１１と同様であり、平面視で下側に膨らんだ弧状に形成されている。
　内側下方部７２５の下縁７２５ｂも、例えば、平面視で下側に膨らんだ弧状に形成されている。 Also in the present embodiment, the plan view shape of the lower edge of the heel outer cushion 71 and the lower edge of the heel inner cushion 72 is not particularly limited and is formed into an appropriate shape.
For example, the lower edge 715b of the outer lower portion 715 is the same as the extension region 711 of the first embodiment, and is formed in an arc shape bulging downward in a plan view.
The lower edge 725b of the inner lower portion 725 is also formed, for example, in an arc shape bulging downward in a plan view.
　本実施形態においても、クッション６Ｂの厚みは、均等であってもよく、或いは、厚み差を有していてもよい。
　図示例では、外側下方部７１５及び内側下方部７２５は、その厚みが下側に向かって単調減少している。 Also in this embodiment, the thickness of the cushion 6B may be uniform or may have a difference in thickness.
In the illustrated example, the thickness of the outer lower portion 715 and the inner lower portion 725 decreases monotonically toward the lower side.
＜シューズ＞
　図１２に示すようなクッション６Ｂをアッパー３の踵部３３に装着することにより、第２実施形態のシューズ１Ｂを構成できる。
　図１３を参照して、クッション６Ｂは、アッパー３の踵部３３に装着されている。特に図示しないが、本実施形態においても、クッション６Ｂは、アッパー３の袋部３９内に挿入されている。クッション６Ｂは、アッパー３の踵部３３に沿うように、上面視で略Ｕ字状に湾曲させた状態で袋部３９内に挿入して装着されている。 <Shoes>
By attaching the cushion 6B as shown in FIG. 12 to the heel portion 33 of the upper 3, the shoe 1B of the second embodiment can be configured.
With reference to FIG. 13, the cushion 6B is attached to the heel portion 33 of the upper 3. Although not particularly shown, the cushion 6B is also inserted into the bag portion 39 of the upper 3 in the present embodiment as well. The cushion 6B is inserted and mounted in the bag portion 39 in a state of being curved in a substantially U shape in a top view so as to be along the heel portion 33 of the upper 3.
　図１３を参照して、踵外側クッション７１は、アッパー３の踵部３３の中央仮想線（幅方向中央部）よりも外側に配置され、且つ、踵内側クッション７２は、アッパー３の踵部３３の幅方向中央部よりも内側に配置されている。
　図１３の側面図（４）を参照して、外側下方部７１５の下縁７１５ｂは、アッパー３の下端部３ｂ近くに位置している。特に、前記外側下方部７１５の最下縁７１５ｂは、側面視で、アッパー３の踵部３３の前後方向中央部に又は踵部３３の後側寄りに位置している。
　同図の側面図（６）を参照して、内側下方部７２５の下縁７２５ｂは、アッパー３の下端部３ｂ近くに位置している。特に、前記内側下方部７２５の最下縁７２５ｂは、側面視で、アッパー３の踵部３３の前後方向中央部に又は踵部３３の後側寄りに位置している。 With reference to FIG. 13, the heel outer cushion 71 is arranged outside the central virtual line (width direction central portion) of the heel portion 33 of the upper 3, and the heel inner cushion 72 is the heel portion 33 of the upper 3. It is arranged inside the central part in the width direction of.
With reference to the side view (4) of FIG. 13, the lower edge 715b of the outer lower portion 715 is located near the lower end portion 3b of the upper 3. In particular, the lowermost edge 715b of the outer lower portion 715 is located at the center portion in the front-rear direction of the heel portion 33 of the upper 3 or closer to the rear side of the heel portion 33 in a side view.
With reference to the side view (6) of the figure, the lower edge 725b of the inner lower portion 725 is located near the lower end portion 3b of the upper 3. In particular, the lowermost edge 725b of the inner lower portion 725 is located at the center portion in the front-rear direction of the heel portion 33 of the upper 3 or closer to the rear side of the heel portion 33 in a side view.
　本実施形態のシューズ１Ｂは、外側下方部７１５がアッパー３の下端部３ｂ近くに位置しているため、踵部３３の外側且つ下側に生じる隙間をその外側下方部７１５にて埋めることができる。一方、内側下方部７２５もアッパー３の下端部３ｂ近くに位置しているが、内側下方部７２５は、外側下方部７１５よりも圧縮剛性が小さいため（換言すると、外側下方部７１５は、内側下方部７２５よりも圧縮剛性が大きいため）、外力により容易に圧縮される。
　上述のように、本発明者等の研究によれば、ラストを用いて作製したアッパーを有するシューズは、特に、アッパーの踵部の外側且つ下側に生じる隙間が踵部の内側且つ下側に生じる隙間よりも大きい。
　この点、本実施形態のシューズ１Ｂは、比較的大きな隙間を生じ得るアッパー３の踵部３３の外側且つ下側に、圧縮剛性の大きい外側下方部７１５が位置しているので、その隙間を埋めることができる。また、比較的小さな隙間を生じ得るアッパー３の踵部３３の内側且つ下側に、圧縮剛性の小さい内側下方部７２５が位置しているので、シューズ１Ｂを履いた際に、その内側下方部７２５が容易に圧縮され、その小さい隙間を内側下方部７２５で埋めることができる。このため、フィット感に優れ、履き心地が良好なシューズ１Ｂを提供できる。 In the shoe 1B of the present embodiment, since the outer lower portion 715 is located near the lower end portion 3b of the upper 3, the gap generated on the outer side and the lower side of the heel portion 33 can be filled by the outer lower portion 715. .. On the other hand, the inner lower portion 725 is also located near the lower end portion 3b of the upper 3, but the inner lower portion 725 has a smaller compression rigidity than the outer lower portion 715 (in other words, the outer lower portion 715 is the inner lower portion). (Because the compression rigidity is larger than that of the portion 725), it is easily compressed by an external force.
As described above, according to the research by the present inventors, a shoe having an upper produced by using the last has a gap formed on the outer side and the lower side of the heel part of the upper part on the inner side and the lower side of the heel part. Larger than the resulting gap.
In this respect, in the shoe 1B of the present embodiment, since the outer lower portion 715 having a large compressive rigidity is located on the outer side and the lower side of the heel portion 33 of the upper 3 which can generate a relatively large gap, the gap is filled. be able to. Further, since the inner lower portion 725 having a small compressive rigidity is located inside and below the heel portion 33 of the upper 3 which can generate a relatively small gap, when the shoe 1B is worn, the inner lower portion 725 thereof is located. Is easily compressed and the small gap can be filled with the inner lower portion 725. Therefore, it is possible to provide shoes 1B having an excellent fit and a good comfort.
［第３実施形態］
　第３実施形態は、踵外側クッションの最大厚みが踵内側クッションの最大厚みよりも大きいシューズに関する。
　図１４乃至図１７は、アッパー３に装着する前の第３実施形態のクッション６Ｃを示している。なお、図１４は、そのクッション６Ｃを第２面側から見た平面図である。同図の細破線は、クッション６Ｃをアッパー３の踵部３３に装着したときの中央仮想線に対応する。
　図１８は、第３実施形態のシューズ１Ｃを上側から見た平面図である。図１９は、同シューズ１Ｃの参考図であって、図６と同様に、アッパー３の踵部３３を三方側（外側、後側、内側）から見たときの各図を順に並べた参考図である（クッション６Ｃを実線で表し、ソール２及びアッパー３を二点鎖線で表している）。
　本実施形態のシューズ１Ｃも、第１実施形態と同様に、ソール２と、ソール２に下端部が取り付けられたアッパー３と、アッパー３の踵部３３に設けられたクッション６Ｃと、を有し、クッション６Ｃが、アッパー３の踵部３３の幅方向中央部よりも外側に配置された踵外側クッション７１と、前記アッパー３の踵部３３の幅方向中央部よりも内側に配置された踵内側クッション７２と、を有する。 [Third Embodiment]
The third embodiment relates to a shoe in which the maximum thickness of the heel outer cushion is larger than the maximum thickness of the heel inner cushion.
14 to 17 show the cushion 6C of the third embodiment before being attached to the upper 3. Note that FIG. 14 is a plan view of the cushion 6C as viewed from the second surface side. The dashed line in the figure corresponds to the central virtual line when the cushion 6C is attached to the heel portion 33 of the upper 3.
FIG. 18 is a plan view of the shoe 1C of the third embodiment as viewed from above. FIG. 19 is a reference view of the shoe 1C, and is a reference view in which the heel portion 33 of the upper 3 is arranged in order when viewed from three sides (outside, rear side, inside), as in FIG. (Cushion 6C is represented by a solid line, and sole 2 and upper 3 are represented by a two-dot chain line).
Similar to the first embodiment, the shoe 1C of the present embodiment also has a sole 2, an upper 3 having a lower end portion attached to the sole 2, and a cushion 6C provided on the heel portion 33 of the upper 3. , The cushion 6C is arranged outside the center portion in the width direction of the heel portion 33 of the upper 3 and the inside of the heel portion arranged inside the center portion in the width direction of the heel portion 33 of the upper 3. It has a cushion 72 and.
＜クッション＞
　図１４乃至図１７を参照して、クッション６Ｃは、前記中央仮想線（細破線）を基準にして、非対称形である。
　ただし、本実施形態においても、クッション６Ｃは、中央仮想線を基準にして略対称形であってもよい。
　踵外側クッション７１は、前記中央仮想線よりも外側に位置し、踵内側クッション７２は、前記中央仮想線よりも内側に位置している。
　本実施形態においては、クッション６Ｃの幅方向中央部の下方部７８１が、踵外側クッション７１の下縁７１ｂ及び踵内側クッション７２の下縁７２ｂよりも下側に延出されている。この場合、クッション６Ｃの幅方向中央部の上下方向長さが、踵外側クッション７１及び踵内側クッション７２の各上下方向長さよりも大きい。図示例では、踵外側クッション７１の上下方向長さが踵内側クッション７２の上下方向長さよりも大きい。
　なお、本実施形態のクッション６Ｃにおいても、上記第１実施形態と同様に、踵外側クッション７１が幅方向中央部の下縁７８ｂ及び踵内側クッション７２の下縁７２ｂよりも下側に延出された延出領域を有していてもよく（図示せず）、或いは、上記第２実施形態と同様に、踵外側クッション７１の下方部及び踵内側クッション７２の下方部が幅方向中央部の下縁よりも下側に延出されていてもよい。 <Cushion>
With reference to FIGS. 14 to 17, the cushion 6C is asymmetrical with respect to the central virtual line (dashed line).
However, also in this embodiment, the cushion 6C may have a substantially symmetrical shape with respect to the central virtual line.
The heel outer cushion 71 is located outside the central virtual line, and the heel inner cushion 72 is located inside the central virtual line.
In the present embodiment, the lower portion 781 of the central portion in the width direction of the cushion 6C extends below the lower edge 71b of the heel outer cushion 71 and the lower edge 72b of the heel inner cushion 72. In this case, the vertical length of the widthwise central portion of the cushion 6C is larger than the vertical lengths of the heel outer cushion 71 and the heel inner cushion 72. In the illustrated example, the vertical length of the heel outer cushion 71 is larger than the vertical length of the heel inner cushion 72.
Also in the cushion 6C of the present embodiment, the heel outer cushion 71 extends below the lower edge 78b of the central portion in the width direction and the lower edge 72b of the heel inner cushion 72, as in the first embodiment. It may have an extended region (not shown), or as in the second embodiment, the lower portion of the heel outer cushion 71 and the lower portion of the heel inner cushion 72 are below the central portion in the width direction. It may extend below the edge.
　本実施形態においては、踵外側クッション７１の最大厚みが踵内側クッション７２の最大厚みよりも大きい点を特徴とする。
　具体的には、図１５乃至図１７に示すように、踵外側クッション７１の厚みは、踵内側クッション７２の厚みよりも大きい。踵外側クッション７１の最大厚みが踵内側クッション７２の最小厚みよりも大きいという条件を満たしていることを条件として、踵外側クッション７１は、均等な厚みでもよく、踵内側クッション７２も均等な厚みでもよい。
　図示例では、踵外側クッション７１及び踵内側クッション７２の厚みは、幅方向において連続的に変化している。詳しくは、踵外側クッション７１は、中央仮想線から離れるに従って徐々に厚みが大きくなり、幅方向の中途部で最も厚みが大きくなった後、端部に向かうに従って徐々に厚みが小さくなっている。特に、踵外側クッション７１の幅方向の中途部上側において最も厚みが大きくなっている。図１４に、踵外側クッション７１の最も厚みが大きい部分７１６（以下、最大厚み部７１６という）に、網掛けを付している。踵内側クッション７２は、中央仮想線から離れるに従って徐々に厚みが小さくなっている。従って、踵内側クッション７２は、中央仮想線付近で最も厚みが大きいが、この踵内側クッション７２の最大厚みは、踵外側クッション７１の最大厚み部７１６の厚みよりも小さい。
　好ましくは、踵外側クッション７１の最大厚み部７１６が、クッション６Ｃの中で最も厚みが大きい部分である。
　踵外側クッション７１の最大厚みと踵内側クッション７２の最大厚みの差は、特に限定されないが、例えば、踵外側クッション７１の最大厚みが踵内側クッション７２の最大厚みの１．１倍～３倍であり、好ましくは１．５倍～２．５倍である。 The present embodiment is characterized in that the maximum thickness of the heel outer cushion 71 is larger than the maximum thickness of the heel inner cushion 72.
Specifically, as shown in FIGS. 15 to 17, the thickness of the heel outer cushion 71 is larger than the thickness of the heel inner cushion 72. The heel outer cushion 71 may be of uniform thickness, and the heel inner cushion 72 may be of uniform thickness, provided that the maximum thickness of the heel outer cushion 71 is larger than the minimum thickness of the heel inner cushion 72. Good.
In the illustrated example, the thicknesses of the heel outer cushion 71 and the heel inner cushion 72 continuously change in the width direction. Specifically, the heel outer cushion 71 gradually increases in thickness as the distance from the central virtual line increases, becomes the thickest in the middle portion in the width direction, and then gradually decreases toward the end portion. In particular, the thickness is the largest on the upper side of the middle portion in the width direction of the heel outer cushion 71. In FIG. 14, the thickest portion 716 of the heel outer cushion 71 (hereinafter referred to as the maximum thickness portion 716) is shaded. The thickness of the heel inner cushion 72 gradually decreases as the distance from the central virtual line increases. Therefore, the heel inner cushion 72 has the largest thickness in the vicinity of the central virtual line, but the maximum thickness of the heel inner cushion 72 is smaller than the thickness of the maximum thickness portion 716 of the heel outer cushion 71.
Preferably, the maximum thickness portion 716 of the heel outer cushion 71 is the thickest portion of the cushion 6C.
The difference between the maximum thickness of the heel outer cushion 71 and the maximum thickness of the heel inner cushion 72 is not particularly limited. For example, the maximum thickness of the heel outer cushion 71 is 1.1 to 3 times the maximum thickness of the heel inner cushion 72. Yes, preferably 1.5 to 2.5 times.
＜シューズ＞
　図１４乃至図１７に示すようなクッション６Ｃをアッパー３の踵部３３に装着することにより、第３実施形態のシューズ１Ｃを構成できる。
　図１８及び図１９を参照して、クッション６Ｃは、アッパー３の踵部３３に装着されている。特に図示しないが、本実施形態においても、クッション６Ｃは、アッパー３の袋部内に挿入されている。
　図１９の背面図（８）を参照して、クッション６Ｃの幅方向中央部の下縁７８ｂは、アッパー３の下端部３ｂ近くに位置している。また、側面図（７）を参照して、踵外側クッション７１は、踵部３３の中央仮想線よりも外側に配置されており、特に、踵外側クッション７１の最大厚み部７１６は、側面視で、アッパー３の踵部３３の後側寄りに位置している。側面図（９）を参照して、踵内側クッション７２は、アッパー３の踵部３３の幅方向中央部よりも内側に配置されている。 <Shoes>
By attaching the cushion 6C as shown in FIGS. 14 to 17 to the heel portion 33 of the upper 3, the shoe 1C of the third embodiment can be configured.
With reference to FIGS. 18 and 19, the cushion 6C is attached to the heel portion 33 of the upper 3. Although not particularly shown, the cushion 6C is also inserted into the bag portion of the upper 3 in the present embodiment as well.
With reference to the rear view (8) of FIG. 19, the lower edge 78b of the widthwise central portion of the cushion 6C is located near the lower end portion 3b of the upper 3. Further, referring to the side view (7), the heel outer cushion 71 is arranged outside the central virtual line of the heel portion 33, and in particular, the maximum thickness portion 716 of the heel outer cushion 71 is viewed from the side. , It is located near the rear side of the heel portion 33 of the upper 3. With reference to the side view (9), the heel inner cushion 72 is arranged inside the heel portion 33 of the upper 3 in the width direction.
　本実施形態のシューズ１Ｃは、踵外側クッション７１の最大厚みが踵内側クッション７２の最大厚みよりも大きいので、踵部３３の外側に生じる隙間を埋めることができる。
　本発明者等の研究によれば、ラストを用いて作製したアッパーを有するシューズは、アッパーの踵部の外側に生じる隙間が踵部の内側に生じる隙間よりも大きい。この点、本実施形態のシューズ１Ｃは、比較的大きな隙間を生じ得るアッパー３の踵部３３の外側に配置される踵外側クッション７１の厚みを踵内側クッション７２よりも大きくしているので、外側の隙間を効果的に埋めることができる。 In the shoe 1C of the present embodiment, since the maximum thickness of the heel outer cushion 71 is larger than the maximum thickness of the heel inner cushion 72, it is possible to fill the gap generated on the outside of the heel portion 33.
According to the research by the present inventors, a shoe having an upper produced by using the last has a larger gap formed on the outside of the heel portion of the upper than a gap formed on the inside of the heel portion. In this respect, in the shoe 1C of the present embodiment, the thickness of the heel outer cushion 71 arranged outside the heel portion 33 of the upper 3 which can generate a relatively large gap is made larger than that of the heel inner cushion 72, so that the outer side Can effectively fill the gaps between the two.
［第４実施形態］
　上記各実施形態のクッションは、単一構造の部材からなるが、例えば、図２０に示すように、クッション６Ａは、複層構造であってもよい。図示例のクッションは、２層構造であり、例えば、第１のスポンジ材６１１と第２のスポンジ材６１２が接着層６１３を介して接合された２層構造である。また、特に図示しないが、第１乃至第３スポンジ材が積層された３層構造などであってもよい。なお、図２０は、第１実施形態のクッション６Ａを複層構造にした場合を例示的に図示しているが、第２実施形態などのクッションも複層構造にしてもよい。 [Fourth Embodiment]
The cushion of each of the above embodiments is composed of a member having a single structure. For example, as shown in FIG. 20, the cushion 6A may have a multi-layer structure. The cushion of the illustrated example has a two-layer structure, for example, a two-layer structure in which the first sponge material 611 and the second sponge material 612 are joined via an adhesive layer 613. Further, although not particularly shown, it may have a three-layer structure in which the first to third sponge materials are laminated. Although FIG. 20 illustrates the case where the cushion 6A of the first embodiment has a multi-layer structure, the cushion of the second embodiment and the like may also have a multi-layer structure.
　また、上記各実施形態のクッションは、踵外側クッション７１と踵内側クッション７２が一体的に形成されている（つまり、踵外側クッション７１の後側と踵内側クッション７２の後側がアッパーの踵部の幅方向中央部において連続している）が、踵外側クッション７１と踵内側クッション７２が別々に形成されていてもよい。踵外側クッション７１と踵内側クッション７２が独立している場合、踵外側クッション７１をアッパー３の踵部３３の外側（外側部位３３１）に装着し、踵内側クッション７２をアッパー３の踵部３３の内側（内側部位３３２）に装着することにより、本発明のシューズが構成される。 Further, in the cushion of each of the above embodiments, the heel outer cushion 71 and the heel inner cushion 72 are integrally formed (that is, the rear side of the heel outer cushion 71 and the rear side of the heel inner cushion 72 are the upper heel portion. Although it is continuous in the central portion in the width direction), the heel outer cushion 71 and the heel inner cushion 72 may be formed separately. When the heel outer cushion 71 and the heel inner cushion 72 are independent, the heel outer cushion 71 is attached to the outside of the heel portion 33 (outer portion 331) of the upper 3, and the heel inner cushion 72 is attached to the heel portion 33 of the upper 3. By attaching to the inside (inner part 332), the shoe of the present invention is configured.
［第５実施形態］
　上記１乃至第４実施形態から選ばれる２つ以上の構成（実施形態）を適宜組み合わせてもよく、或いは、上記様々な実施形態から選ばれる１つ又は２つ以上の構成を、それ以外の実施形態に置換してもよい。
　例えば、第２実施形態で示した圧縮剛性の異方性を、第１実施形態に適用してもよい。具体的には、第１実施形態の延出領域７１１の圧縮剛性が踵内側クッション７２の圧縮剛性よりも大きくなるように、踵外側クッション７１が構成されていてもよい。
　また、第３実施形態で示した厚み差を、第１実施形態に適用してもよい。具体的には、第１実施形態の踵外側クッション７１の最大厚みが踵内側クッション７２の最大厚みよりも大きくなるように、クッション６Ａを形成する。この場合、第１実施形態の踵外側クッション７１の上方部（踵外側クッション７１のうち延出領域７１１の上側の部分）が、最大厚み部とされることが好ましい。これにより、第１実施形態と第３実施形態の効果が相乗し、アッパーの踵部の外側に生じる隙間を確実に埋めることができる。 [Fifth Embodiment]
Two or more configurations (embodiments) selected from the above 1 to 4 embodiments may be appropriately combined, or one or two or more configurations selected from the above various embodiments may be combined with other embodiments. It may be replaced with a form.
For example, the anisotropy of compressive rigidity shown in the second embodiment may be applied to the first embodiment. Specifically, the heel outer cushion 71 may be configured so that the compression rigidity of the extension region 711 of the first embodiment is larger than the compression rigidity of the heel inner cushion 72.
Further, the thickness difference shown in the third embodiment may be applied to the first embodiment. Specifically, the cushion 6A is formed so that the maximum thickness of the heel outer cushion 71 of the first embodiment is larger than the maximum thickness of the heel inner cushion 72. In this case, it is preferable that the upper portion of the heel outer cushion 71 of the first embodiment (the upper portion of the heel outer cushion 71 on the extension region 711) is the maximum thickness portion. As a result, the effects of the first embodiment and the third embodiment are synergistic, and the gap generated on the outside of the heel portion of the upper can be reliably filled.
［その他］
　上述した各実施形態の説明には、以下の態様が含まれる。
　前記シューズにおいて、前記踵外側クッションの延出領域の下縁が、前記アッパーの下端部に最も近い最下縁と、前記最下縁から前記踵外側クッションの前側に向かって上斜めに延びる弧状縁と、前記最下縁から前記踵外側クッションの後側に向かって上斜めに延びる弧状縁と、を有する。最下縁とその両側の弧状縁とを有する延出領域は、足の踵の外側に適合し易くなり、踵部の外側且つ下側に生じる隙間を効果的に埋めることができる。 [Other]
The description of each of the above-described embodiments includes the following aspects.
In the shoe, the lower edge of the extension area of the heel outer cushion is the lowermost edge closest to the lower end of the upper and the arcuate edge extending diagonally upward from the lowermost edge toward the front side of the heel outer cushion. And an arc-shaped edge extending diagonally upward from the lowermost edge toward the rear side of the heel outer cushion. The extension area having the bottom edge and the arcuate edges on both sides thereof is easy to fit to the outside of the heel of the foot, and the gap generated on the outside and the bottom of the heel can be effectively filled.
　前記シューズにおいて、前記延出領域の最下縁が前記アッパーの踵部の前後方向中央部又は前記踵部の後側寄りに位置するように、前記踵外側クッションが配置されている。このような位置に延出領域が配置されていることにより、踵部の外側且つ下側に生じる隙間を効果的に埋めることができる。 In the shoe, the heel outer cushion is arranged so that the lowermost edge of the extension region is located at the center of the heel portion in the anteroposterior direction of the upper or toward the rear side of the heel portion. By arranging the extension area at such a position, it is possible to effectively fill the gap generated on the outer side and the lower side of the heel portion.
　前記シューズにおいて、前記踵内側クッションの下縁の全体が、前記踵内側クッションの前側から後側に向かって下斜めに延びる弧状又は直線状である。
　本発明者等の研究によれば、シューズを履いた時には、足の踵の内くるぶし下側には殆ど隙間が生じないことが判っている。踵内側クッションの前側から後側に向かって下斜めに延びる弧状又は直線状に形成されていることにより、足の踵の内側且つ下側とアッパーの踵部の間に、クッションが介在せず、足の踵の内側においてもフィット感に優れたシューズを提供できる。 In the shoe, the entire lower edge of the heel inner cushion is an arc or a straight line extending diagonally downward from the front side to the rear side of the heel inner cushion.
According to the research by the present inventors, it is known that when the shoes are worn, there is almost no gap under the inner ankle of the heel of the foot. By forming an arc or a straight line extending diagonally downward from the front side to the rear side of the heel medial cushion, the cushion does not intervene between the medial and inferior side of the heel of the foot and the heel of the upper. It is possible to provide shoes with an excellent fit even on the inside of the heel of the foot.
　前記シューズにおいて、前記延出領域の単位面積当たりの重量が下側に向かって単調減少している。例えば、前記延出領域の厚みが、下側に向かって単調減少している。このような延出領域を有するシューズは、踵の大きい使用者が履いた場合であっても延出領域が適宜変形するので、履き心地が向上する。 In the shoe, the weight per unit area of the extension area is monotonically decreasing toward the lower side. For example, the thickness of the extension region decreases monotonically toward the lower side. A shoe having such an extension area is improved in comfort because the extension area is appropriately deformed even when worn by a user having a large heel.
　前記シューズにおいて、前記踵外側クッションの延出領域の下縁が、前記アッパーの下端部に最も近い最下縁を有し、前記最下縁における前記踵外側クッションの上下方向長さが、幅方向において前記最下縁に対応する前記踵内側クッションの上下方向長さよりも大きい。このような延出領域を有するシューズは、延出領域によってアッパーの踵部と足の踵の隙間を効果的に埋めることができる。 In the shoe, the lower edge of the extension region of the heel outer cushion has the lowest edge closest to the lower end of the upper, and the vertical length of the heel outer cushion at the lowermost edge is the width direction. Is larger than the vertical length of the heel inner cushion corresponding to the lowermost edge. A shoe having such an extension area can effectively fill the gap between the heel portion of the upper and the heel of the foot by the extension area.
　前記シューズにおいて、前記踵外側クッションの後側と踵内側クッションの後側が、前記アッパーの踵部の幅方向中央部において連続している。踵外側クッションと踵内側クッションが連続したクッションは、それらのクッションを別体で構成する場合に比して、アッパーの踵部への装着作業を簡素化できる。 In the shoe, the rear side of the heel outer cushion and the rear side of the heel inner cushion are continuous in the central portion in the width direction of the heel portion of the upper. A cushion in which the outer heel cushion and the inner heel cushion are continuous can simplify the work of attaching the upper to the heel portion as compared with the case where the cushions are formed separately.
　１Ａ，１Ｂ，１Ｃ　シューズ
　２　ソール
　３　アッパー
　３３　アッパーの踵部
　６Ａ，６Ｂ，６Ｃ　クッション
　７１　踵外側クッション
　７１１　延出領域
　７１２ｂ，７１４ｂ　延出領域の弧状縁
　７１３ｂ　延出領域の最下縁
　７２　踵内側クッション
　７２ｂ　踵内側クッションの下縁 1A, 1B, 1C shoes 2 sole 3 upper 33 upper heel 6A, 6B, 6C cushion 71 heel outer cushion 711 extension area 712b, 714b arcuate edge of extension area 713b bottom edge of extension area 72 heel inner cushion 72b Lower edge of heel inner cushion

Claims (10)

  1. 　ソールと、前記ソールに下端部が取り付けられ且つ踵部を有するアッパーと、前記アッパーに設けられたクッションと、を有するシューズにおいて、
    　前記クッションが、前記アッパーの踵部の幅方向中央部よりも外側に配置された踵外側クッションと、前記アッパーの踵部の幅方向中央部よりも内側に配置された踵内側クッションと、を有し、
    　前記踵外側クッションが、前記踵内側クッションよりも前記アッパーの下端部近くに延在されている延出領域を有する、シューズ。     In a shoe having a sole, an upper having a lower end attached to the sole and having a heel, and a cushion provided on the upper.
    The cushion includes an outer heel cushion arranged outside the widthwise central portion of the upper heel portion and an inner heel cushion arranged inside the widthwise central portion of the upper heel portion. And
    A shoe in which the heel outer cushion has an extension area extending closer to the lower end of the upper than the heel inner cushion.
  2. 　前記延出領域の下縁が、前記アッパーの下端部に最も近い最下縁と、前記最下縁から前記踵外側クッションの前側に向かって上斜めに延びる弧状縁と、前記最下縁から前記踵外側クッションの後側に向かって上斜めに延びる弧状縁と、を有する、請求項１に記載のシューズ。 The lower edge of the extension region is the lowermost edge closest to the lower end of the upper, the arc-shaped edge extending diagonally upward from the lowermost edge toward the front side of the heel outer cushion, and the lower edge. The shoe according to claim 1, wherein the shoe has an arcuate edge extending diagonally upward toward the rear side of the heel outer cushion.
  3. 　前記延出領域の最下縁が前記アッパーの踵部の前後方向中央部又は前記踵部の後側寄りに位置するように、前記踵外側クッションが配置されている、請求項２に記載のシューズ。 The shoe according to claim 2, wherein the heel outer cushion is arranged so that the lowermost edge of the extension region is located at the center of the upper heel in the anteroposterior direction or closer to the rear side of the heel. ..
  4. 　前記踵内側クッションの下縁の全体が、前記踵内側クッションの前側から後側に向かって下斜めに延びる弧状又は直線状である、請求項１乃至３のいずれか一項に記載のシューズ。 The shoe according to any one of claims 1 to 3, wherein the entire lower edge of the heel inner cushion is an arc or a straight line extending diagonally downward from the front side to the rear side of the heel inner cushion.
  5. 　前記延出領域の単位面積当たりの重量が、下側に向かって単調減少している、請求項１乃至４のいずれか一項に記載のシューズ。 The shoe according to any one of claims 1 to 4, wherein the weight per unit area of the extension area is monotonically decreasing toward the lower side.
  6. 　前記延出領域の厚みが、下側に向かって単調減少している、請求項１乃至５のいずれか一項に記載のシューズ。 The shoe according to any one of claims 1 to 5, wherein the thickness of the extension area is monotonically decreasing toward the lower side.
  7. 　前記踵外側クッションの延出領域の下縁が、前記アッパーの下端部に最も近い最下縁を有し、
    　前記最下縁における前記踵外側クッションの上下方向長さが、幅方向において前記最下縁に対応する前記踵内側クッションの上下方向長さよりも大きい、請求項１乃至６のいずれか一項に記載のシューズ。     The lower edge of the extension area of the heel outer cushion has the lowest edge closest to the lower end of the upper.
    The method according to any one of claims 1 to 6, wherein the vertical length of the heel outer cushion at the lowermost edge is larger than the vertical length of the heel inner cushion corresponding to the lowermost edge in the width direction. Shoes.
  8. 　ソールと、前記ソールに下端部が取り付けられ且つ踵部を有するアッパーと、前記アッパーに設けられたクッションと、を有するシューズにおいて、
    　前記クッションが、前記アッパーの踵部の幅方向中央部よりも外側に配置された踵外側クッションと、前記アッパーの踵部の幅方向中央部よりも内側に配置された踵内側クッションと、を有し、
    　前記踵外側クッションの下方部の圧縮剛性が、前記踵内側クッションの下方部の圧縮剛性よりも大きい、シューズ。     In a shoe having a sole, an upper having a lower end attached to the sole and having a heel, and a cushion provided on the upper.
    The cushion includes an outer heel cushion arranged outside the widthwise central portion of the upper heel portion and an inner heel cushion arranged inside the widthwise central portion of the upper heel portion. And
    A shoe in which the compression rigidity of the lower part of the heel outer cushion is larger than the compression rigidity of the lower part of the heel inner cushion.
  9. 　ソールと、前記ソールに下端部が取り付けられ且つ踵部を有するアッパーと、前記アッパーに設けられたクッションと、を有するシューズにおいて、
    　前記クッションが、前記アッパーの踵部の幅方向中央部よりも外側に配置された踵外側クッションと、前記アッパーの踵部の幅方向中央部よりも内側に配置された踵内側クッションと、を有し、
    　前記踵外側クッションの最大厚みが、前記踵内側クッションの最大厚みよりも大きい、シューズ。     In a shoe having a sole, an upper having a lower end attached to the sole and having a heel, and a cushion provided on the upper.
    The cushion includes an outer heel cushion arranged outside the widthwise central portion of the upper heel portion and an inner heel cushion arranged inside the widthwise central portion of the upper heel portion. And
    A shoe in which the maximum thickness of the heel outer cushion is larger than the maximum thickness of the heel inner cushion.
  10. 　前記踵外側クッションの後側と踵内側クッションの後側が、前記アッパーの踵部の幅方向中央部において連続している、請求項１乃至９のいずれか一項に記載のシューズ。 The shoe according to any one of claims 1 to 9, wherein the rear side of the heel outer cushion and the rear side of the heel inner cushion are continuous at the central portion in the width direction of the heel portion of the upper.
PCT/JP2019/047275 2019-12-03 2019-12-03 Shoe WO2021111529A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008065865A1 (en) * 2006-11-29 2008-06-05 Mizuno Corporation Upper structure for shoes
JP2016077407A (en) * 2014-10-14 2016-05-16 株式会社 Ａｋａｉｓｈｉ Footwear pad

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Publication number Priority date Publication date Assignee Title
US7168188B2 (en) 2004-07-15 2007-01-30 Nike, Inc. Article footwear with removable heel pad
KR100750833B1 (en) 2007-05-21 2007-08-22 권용국 Cushion member inside of shape-sustainer for heels of shoes
EP2912962B1 (en) 2012-10-24 2020-01-01 ASICS Corporation Upper provided with sponge member in heel part
KR101995677B1 (en) 2018-11-28 2019-07-02 백홍주 Noise prevention slippers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008065865A1 (en) * 2006-11-29 2008-06-05 Mizuno Corporation Upper structure for shoes
JP2016077407A (en) * 2014-10-14 2016-05-16 株式会社 Ａｋａｉｓｈｉ Footwear pad

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