WO2018193489A1 - Semelle de chaussure - Google Patents

Semelle de chaussure Download PDF

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Publication number
WO2018193489A1
WO2018193489A1 PCT/JP2017/015418 JP2017015418W WO2018193489A1 WO 2018193489 A1 WO2018193489 A1 WO 2018193489A1 JP 2017015418 W JP2017015418 W JP 2017015418W WO 2018193489 A1 WO2018193489 A1 WO 2018193489A1
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WO
WIPO (PCT)
Prior art keywords
groove
bent
foot
outsole
longitudinal groove
Prior art date
Application number
PCT/JP2017/015418
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English (en)
Japanese (ja)
Inventor
亜友 別所
元貴 波多野
慎吾 高島
将 市川
西脇　剛史
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/JP2017/015418 priority Critical patent/WO2018193489A1/fr
Priority to JP2019513508A priority patent/JPWO2018193489A1/ja
Publication of WO2018193489A1 publication Critical patent/WO2018193489A1/fr

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer

Definitions

  • the present invention relates to a structure of a shoe sole that easily follows the movement of a sole.
  • a shoe sole provided with a bending groove corresponding to the joint of the foot is common in order to realize the original movement of the foot.
  • a shoe sole provided with a longitudinal groove extending in the longitudinal direction of a shoe has been developed in order to improve running efficiency.
  • the invention disclosed in the document 1 relates to a shoe sole for shoes suitable for walking of elderly people with weak muscular strength. For this reason, the time from the landing of the foot to the takeoff is long, and the shoe sole of Document 1 may be unsuitable for exercise such as running and training.
  • the document 2 discloses a sole of a golf shoe.
  • the invention of Document 2 discloses a groove that obliquely divides a hard outsole to which a heel is attached.
  • the sole of this document 2 promotes the internal rotation of the kicking foot during the swing, and does not hinder the movement of the kicking foot during the swing, and aims to realize a smooth weight shift.
  • the outsole is hard enough to wear a heel, and cannot be applied to ordinary sports shoes.
  • the longitudinal groove along the shoe center line is not disclosed.
  • shoe soles are designed according to the joints and skeleton of the foot.
  • the dynamic deformation of a series of feet from landing to takeoff is not fully considered.
  • the dorsiflexion refers to rotation around the axis in the foot width direction.
  • the valgus refers to the rotation of the forefoot, middle foot or rear foot with respect to the lower leg around the axis in the foot length direction.
  • FIG. 15A is an inside drawing of a dorsiflexed right foot.
  • FIGS. 15B and 15C each show a skeleton when the right foot is viewed from the rear.
  • FIG. 15B shows a forefoot inversion state in which the main rib B rotates upward with respect to the fifth rib B5 of the forefoot in a state where the rib Bh is normal.
  • FIG. 15 (c) shows a forefoot condition in which the fifth heel B5 rotates upward with respect to the forefoot heel B while the rib Bh is normal.
  • FIG. 15 (a) When running barefoot, the deformation of the foot in FIG. 15 (a) often involves not only simple dorsiflexion but also varus and valgus as shown in FIGS. 15 (b) and 15 (c).
  • a shoe sole in which a general bending groove extending in a transverse direction or an oblique direction of the sole is formed has a structure that is easily bent back.
  • the force exerted in the valgus direction when the foot is kicked out is about 10% of the force in the dorsiflexion direction. For this reason, the general sole cannot prevent the deformation in the valgus direction and induce the deformation.
  • an object of the present invention is to provide a shoe sole structure that follows the dynamic deformation of the foot and easily induces the dynamic deformation.
  • the characteristic to be imparted to the sole is to reduce the desired varus or valgus stiffness without locally reducing the stiffness in the dorsiflexion direction.
  • the groove 100 is formed at the position of the axis S to be deformed, as shown by a two-dot chain line in FIG. 13B.
  • this method also decreases the rigidity in the dorsiflexion direction. Therefore, as shown by the dot pattern in FIG. 13B, the local rigidity reduction of the dorsiflexion can be prevented by shifting the groove 200 back and forth in two stages.
  • the range that can be the bending axis S1 is widened, and the single groove 200 can cope with multi-axial deformation to some extent. Therefore, the number and area of the grooves can be reduced, and an inadvertent reduction in rigidity in the bottom dorsiflexion direction can be prevented.
  • the shoe sole of the present invention includes an inner foot M and an outer foot L, A longitudinal groove 10 extending in the front-rear direction Y between the edge Me of the inner foot M and the edge Le of the outer foot L; A first bent groove 21 on the rear Y2 extending from the first portion 11 of the longitudinal groove 10 toward one of the edges of the inner foot M and the outer foot L and obliquely rearward.
  • a second bent groove 22 of the front Y1 extending toward the edge and obliquely forward The first angle ⁇ formed by the first bent groove 21 and the longitudinal groove 10 is set to an obtuse angle, A second angle ⁇ formed by the second bent groove 22 and the longitudinal groove 10 is set to an obtuse angle.
  • a first bent groove 21 extending obliquely rearward on one of the inner and outer sides and a second bent groove 22 extending obliquely forward on the other of the inner and outer sides are connected to the vertical groove 10 extending in the front-rear direction Y.
  • a letter-shaped or inverted Z-shaped groove is formed. Therefore, when the foot is bent back, the shoe sole is easily deformed along the Z-shaped groove or the like as the midfoot or forefoot of the foot is varus or valgus. As a result, it can be expected that the shoe sole follows the dynamic deformation of the foot and induces the dynamic deformation.
  • the first angle ⁇ and the second angle ⁇ are set to obtuse angles.
  • the obtuse angle means an angle larger than 90 ° and smaller than 180 °.
  • the first angle ⁇ is an obtuse angle. Therefore, a shoe sole that is dorsiflexed along the first bent groove 21 continues to bend back along the longitudinal groove 10 with varus or valgus. Can do. That is, since the first bent groove 21 and the vertical groove 10 form an obtuse angle, the shoe sole is expected to smoothly shift to the deformation along the vertical groove 10 after the deformation along the first bent groove 21. .
  • the second angle ⁇ is an obtuse angle, so that the shoe sole that is varus or valgus along the longitudinal groove 10 can continue to bend further along the second bent groove 22.
  • the shoe sole smoothly moves to the further dorsiflexion along the second bent groove 22 after varus or valgus along the vertical groove 10. It is expected to migrate.
  • angles ⁇ and ⁇ may be obtuse angles between the groove edges, but the angle between the groove center lines is preferably an obtuse angle, and more preferably both of them are obtuse angles.
  • Towards the edge means to include a case where it may extend to the edge but not to the edge.
  • To extend in the front-rear direction Y is only required to extend in a direction including the component of the front-rear direction Y, and thus the vertical groove 10 may extend in the oblique front-rear direction.
  • first bent groove 21 extends from the longitudinal groove 10 only to one of the inner and outer sides (the second bent groove 22 extends only to the other of the inner and outer sides). This means that the first bent groove 21 (second bent groove 22) may slightly protrude to the other (one side).
  • Between the edge Me of the inner foot portion M and the edge Le of the outer foot portion L means that the longitudinal groove 10 may not be disposed at the center of the inner and outer sides.
  • a part of the center line of the vertical groove 10 or a part of the vertical groove 10 is arranged in a central 1/3 region obtained by dividing the space between both edges Me and Le into three equal parts.
  • FIG. 1 is a bottom view of a shoe sole showing Example 1 of the present invention.
  • 2 is a cross-sectional view taken along line II-II in FIG. 3A and 3B are sectional views taken along lines IIIA-IIIA and IIIB-IIIB in FIG. 1, respectively.
  • 4A and 4B are an inner side view and an outer side view of the shoe sole, respectively.
  • FIG. 5 is a bottom view showing the relationship between the shoe sole and the foot skeleton.
  • FIG. 6 is a bottom view of the shoe sole showing the second embodiment.
  • FIG. 7 is a bottom view of a shoe sole showing Example 3 of the present invention. 8A and 8B are sectional views taken along lines VIIIA-VIIIA and VIIIB-VIIIB in FIG. 7, respectively.
  • FIG. 9 is a bottom view showing the relationship between the shoe sole and the foot skeleton.
  • FIG. 10 is a bottom view of a shoe sole showing Example 4 of the present invention.
  • FIG. 11 is a bottom view of a shoe sole showing Example 5 of the present invention.
  • FIG. 12 is an inner side view, a bottom view, and an outer side view of a shoe sole showing Example 6 of the present invention.
  • FIG. 13A is a bottom view of a shoe sole showing Example 7 of the present invention, and FIG. 13B is a conceptual diagram for explaining the principle of the present invention.
  • FIG. 14A is a schematic bottom view of a shoe sole showing comparative examples and test examples, and FIG. 14B is a graph showing simulation results.
  • 15A is an inner side view of a dorsiflexed right foot
  • FIGS. 15B and 15C are rear views showing a skeleton when the right foot is viewed from the rear.
  • FIG. 1 In FIG. 1, FIG. 7, FIG. 10 and FIG. 11, a dot pattern is given to the part of the outsole.
  • a small and rough dot pattern is attached to the ground contact surface of the outsole.
  • a large dot pattern is attached to the non-ground surface of the outsole and the thin portion.
  • fine dot patterns are densely attached to the tapered surface at the periphery of the ground contact surface.
  • a shoe sole having a groove in a so-called forefoot part includes an inner foot part M and an outer foot part L, A longitudinal groove 10 extending in the front-rear direction Y between the edge Me of the inner foot M and the edge Le of the outer foot L;
  • the first bent groove 21 of the posterior Y2 extending from the first portion 11 of the longitudinal groove 10 toward the edge Me of the inner foot M and obliquely rearward so as to pass below the first metatarsal bone B1.
  • the first angle ⁇ formed by the first bent groove 21 and the longitudinal groove 10 is set to an obtuse angle
  • a second angle ⁇ formed by the second bent groove 22 and the longitudinal groove 10 is set to an obtuse angle.
  • the inner foot portion M of the shoe sole bends behind the head of the first metatarsal bone, and as a movement following this dorsiflexion, the forefoot portion is removed from the first bent groove 21 along the longitudinal groove 10. It will begin to warp, and will further bend and valgus along the second bending groove 22 in front of the tip of the fifth rod B5.
  • the three grooves 21, 10, and 22 are likely to induce the dynamic deformation by training the forefoot portion of the shoe sole following the dynamic deformation of the foot during training or the like.
  • a shoe sole having a groove extending from a so-called middle foot portion to a forefoot portion includes an inner foot portion M and an outer foot portion L, A longitudinal groove 10 extending in the front-rear direction Y between the edge Me of the inner foot M and the edge Le of the outer foot L; A first bent groove 21 at the rear Y2 extending from the first portion 11 of the longitudinal groove 10 toward the edge Le of the outer foot L and obliquely rearward so as to pass below the cubic bone Bc; From the second part 12 in the front Y1 of the longitudinal groove 10 to the edge Me of the inner foot M in the front Y1 of the first bent groove 21 and the first middle foot A second bending groove 22 on the front Y1 extending obliquely forward so as to pass below the bone B1,
  • the first angle ⁇ formed by the first bent groove 21 and the longitudinal groove 10 is set to an obtuse angle
  • a second angle ⁇ formed by the second bent groove 22 and the longitudinal groove 10 is set to an obtuse angle
  • the middle foot portion and the rear foot portion bend in the back until they reach the MP joint.
  • the load center moves forward in the middle foot portion without the foot falling inward.
  • a longitudinal groove 10 between the two bent grooves will encourage the load center to move forward.
  • the first bent groove 21 in the rear Y2 extending obliquely rearward so as to pass below the cubic bone Bc promotes the inversion of the rear foot portion and the middle foot portion, and the lower portion of the first metatarsal bone B1.
  • the second bend groove 22 in the front Y1 extending obliquely forward so as to pass through will encourage the forefoot to invert in front of the MP joint.
  • the three grooves 21, 10, and 22 are likely to cause the dynamic deformation of the shoe sole from the middle foot portion of the shoe sole to follow the dynamic deformation of the foot during running or the like.
  • the first bending groove 21 is less likely to be bent than the first bending groove 21 in a virtual first area 1A obtained by extending the first bending groove 21 toward the other one of the inner foot portion M and the outer foot portion L.
  • a first inhibition part 31 is provided, In the virtual second area 2A in which the second bent groove 22 extends toward the one of the inner foot portion M and the outer foot portion L, the second inhibition is less likely to bend than the second bent groove 22.
  • a part 32 is provided.
  • the first and second inhibition portions 31 and 32 that are less likely to be bent than the bending groove suppress the shoe sole from being bent back over the entire width of the shoe sole along the first and second bending grooves 21 and 22, respectively. To do. Thereby, varus or valgus can be promoted at the time of dorsiflexion.
  • “difficult to bend” means that the bending rigidity in the dorsiflexion direction of the first or second inhibition portion is larger than that of the first or second bending groove.
  • the first inhibition part 31 includes a first auxiliary groove 31G or a first uneven part 31C
  • the second inhibition part 32 includes a second auxiliary groove 32G or a second uneven part 32C.
  • auxiliary grooves and irregularities of the inhibition portions 31 and 32 are less likely to bend than the bent grooves, but will provide the flexibility that the shoe sole bends smoothly in the bent grooves 21 and 22 and the vertical groove 10.
  • the “concavo-convex portion” is generally called a sole design, and means that it may be constituted by a concave portion or a convex portion formed on the outsole.
  • the shoe sole has an outsole 3 having a ground contact surface 3f and a midsole 4 disposed on the outsole 3,
  • the longitudinal groove 10, the first bent groove 21, and the second bent groove 22 are formed in the midsole 4,
  • the first auxiliary groove 31G or the first uneven portion 31C of the first area 1A is formed in the outsole 3
  • the second auxiliary groove 32G or the second uneven portion 32C of the second area 2A is formed in the outsole 3.
  • the longitudinal groove 10, the first bent groove 21, and the second bent groove 22 are formed in the midsole 4, and the outsole is essentially divided into the front and rear or the inside and the outside by these grooves. Therefore, the bending rigidity of these parts is small.
  • the auxiliary grooves 31G and 32G or the concavo-convex portions 31C and 32C are formed in the outsole 3, and an outsole that is harder than the midsole is provided at these portions. Therefore, these parts have higher bending rigidity than the bent grooves.
  • each top surface 20 of the first and second bent grooves 21 and 22 has a downward slope that descends from the longitudinal groove 10 toward the edges Me and Le of the inner foot portion M or the outer foot portion L.
  • the first and second bent grooves 21 and 22 are deeper in the vicinity of the longitudinal groove 10 than in the vicinity of the edge, and therefore, the shoe sole is expected to bend smoothly along the three grooves 21, 10, and 22. it can.
  • the first and / or second bent grooves 21 and 22 extend from the longitudinal groove 10 to the edges Me and Le of the inner foot M and / or the outer foot L, and the first and second A cutout N extending vertically is provided on the side surface of the inner foot M and / or the outer foot L at the ends of the second bent grooves 21 and 22.
  • These notches N facilitate the bending of the shoe sole in each of the bending grooves.
  • the width W10 of the longitudinal groove 10 is larger than the widths W21 and W22 of the first and / or second bent grooves 21 and 22.
  • the continuity of the bending of the longitudinal groove 10 and the first or second bending groove 21, 22 will increase, and the propulsive force forward by the longitudinal groove 10 will increase.
  • the hardness of the midsole 4 is set so that the value measured with an Asker C hardness meter is 35 ° to 75 °, and the hardness of the outsole 3 is 55 ° to 80 ° measured with a JISA hardness meter. It is set to become.
  • the midsole has an Asker C hardness of more preferably about 40 ° to 70 °, and most preferably about 50 ° to 60 °.
  • the outsole has a JISA hardness of more preferably 60 ° to 75 °, and most preferably about 65 ° to 71 °.
  • a shoe sole set in such a hardness range is suitable for a sports shoe having spikes and different from a spike sole intended for a specific competition. In other words, the shoe sole is suitable for an athletic shoe that does not have spikes or heels. If the sole hardness is reasonably small as described above, the shoe sole will follow the dynamic deformation of the foot during running and exercise and will likely induce the dynamic deformation.
  • the virtual shoe center line CL and the longitudinal groove 10 or its extension line intersect in front of the longitudinal groove 10, or the line CL and the longitudinal groove 10 are parallel to each other.
  • the shoe center line means a line connecting the front end O1 and the rear end O2 of the shoe sole or the shoe.
  • the longitudinal grooves 10 arranged in such a positional relationship will enhance the forward propulsive force along the shoe center line and the outer foot edge of the outsole.
  • the torsional rigidity about the axis along the outer center edge of the shoe center line or the outsole will be lowered, and the inner foot portion and the outer foot portion will be easily rotated relative to each other. That is, it will be easy to reduce the desired varus or valgus stiffness.
  • the vertical groove 10 is formed at least in the outsole 3, a rear vertical groove 10B is formed in the outsole 3 behind the vertical groove 10, and the two vertical grooves 10 and 10B are connected to each other in the front-rear direction. Yes.
  • the outsole having high rigidity is divided into the inside and the outside. Therefore, both longitudinal grooves will increase the forward thrust.
  • the shoe sole is likely to be twisted around both longitudinal grooves, and the desired varus and valgus effects will be easily obtained.
  • FIGS. 1 and 2 A first embodiment of the present invention will be described below with reference to FIGS.
  • This embodiment is, for example, a shoe sole for a left foot shoe for training.
  • the shoe sole shown in FIGS. 1 and 2 includes a rubber outsole 3 and a resin midsole 4.
  • An upper (not shown) for covering the instep of the foot is provided on the shoe sole.
  • the midsole 4 is disposed on the outsole 3 and includes a midsole body made of a resin foam such as EVA, and may further include a reinforcing device and a buffer part.
  • a resin foam such as EVA
  • Melt of resin means that it has a resin component such as thermoplasticity, and includes any appropriate other component.
  • the outsole 3 of FIG. 2 has a ground contact surface 3f and is a ground contact bottom that is more wear resistant than the foam of the midsole body, and generally has a Young's modulus greater than that of the foam of the midsole body and is generally hard. is there.
  • the term “made of rubber” means that it has components of natural rubber and synthetic rubber, and includes any other component.
  • the midsole 4 and the insole (not shown) of the present embodiment cover almost the entire sole.
  • the outsole 3 is attached to the lower surface of the midsole 4 and partially covers the sole.
  • a front longitudinal groove 10, a first bending groove 21, a second bending groove 22, a third bending groove 23, and a rear longitudinal groove 10B are formed on the ground contact surface side of the shoe sole.
  • the front longitudinal groove 10 and the rear longitudinal groove 10 ⁇ / b> B extend in the front-rear direction Y in the middle between the inner foot portion M and the outer foot portion L.
  • the rear end of the front vertical groove 10 and the front end of the rear vertical groove 10B in FIG. 2 are connected via the protrusion, but may be connected smoothly.
  • the first bent groove 21 in FIG. 1 is disposed behind the second bent groove 22 in the Y2 direction.
  • the first bent groove 21 is obliquely rearward from the first portion 11 of the front longitudinal groove 10 toward the edge Me of the inner foot portion M and so as to pass under the first metatarsal bone B1 of FIG. It extends towards.
  • the first bent groove 21 in FIG. 1 extends from the first portion 11 to the edge Me of the inner foot portion M.
  • the first bending groove 21 in FIG. 5 may be disposed so as to pass below the head B11 or the bone body B12 of the first metatarsal bone B1.
  • the bone bottom refers to a portion of each bone that is close to the posterior joint and bulges slightly thickly, and is also called a proximal bone head.
  • the bone head refers to a portion that is slightly thicker and bulges near the front joint in each bone, and is also called a distal head.
  • the bone body means a portion between the bone bottom and the bone head, and the thickness generally changes smoothly.
  • the second bent groove 22 is an edge of the outer leg L from the second portion 12 of the front longitudinal groove 10 in the front Y1 to the front Y1 of the first bent groove 21. Extends towards Le. Further, the second bent groove 22 of FIG. 5 extends obliquely forward so as to pass through the front Y1 rather than the tips of the fourth ridge B4 and the fifth ridge B5. In the case of this example, the first bent groove 21 extends from the second portion 12 to the edge Le of the outer foot portion L. Accordingly, the front longitudinal groove 10, the first and second bent grooves 21, 22 cross the front foot portion in a zigzag manner in an inverted Z shape.
  • the first angle ⁇ formed by the first bent groove 21 and the front longitudinal groove 10 is set to an obtuse angle.
  • the second angle ⁇ formed by the second bent groove 22 and the front longitudinal groove 10 is also set to an obtuse angle.
  • the first and second angles ⁇ and ⁇ are angles between the center lines of the grooves 10, 21 and 22.
  • the third bent groove 23 in FIG. 1 passes from the rear longitudinal groove 10B toward the edge Le of the outer leg L and below the metatarsals of the fourth and fifth ribs B4 and B5 in FIG. In addition, it extends obliquely rearward along the MP joint MP. Thereby, moderate bending of the foot in the MP joint MP is promoted.
  • the portion indicated by the dot pattern in FIG. 5 is the deepest part of the front longitudinal groove 10, the first and second bent grooves 21, 22.
  • This deepest part is the deepest part in the cross section orthogonal to the extending direction of each groove.
  • the deepest part extends along the valley line.
  • the deepest portions 21 d and 10 d of the first bent groove 21 and the front longitudinal groove 10 are smoothly connected so as to draw an arc in the first portion 11. Further, the deepest portions 22d and 10d of the second bent groove 22 and the front longitudinal groove 10 are smoothly connected so as to draw an arc in the first portion 12. Thereby, a smooth valgus movement of the forefoot along the first and second bent grooves 21 and 22 can be expected.
  • the first bent groove 21 in FIG. 1 may extend slightly toward the first inhibition portion 31. Further, the second bent groove 22 may slightly extend toward the second inhibition portion 32.
  • the first inhibition portion 31 that is less bent than the first bent groove 21 is provided in the virtual first area 1A obtained by extending the first bent groove 21 toward the outer leg portion L.
  • the virtual second area 2A obtained by extending the second bent groove 22 toward the inner foot M is provided with the second inhibition portion 32 that is less likely to be bent than the second bent groove 22. .
  • “difficult to bend” means that the value of the bending rigidity EIz against the dorsiflexion is large.
  • a comparison of the magnitudes of the rigidity EIz is that the part of the inner foot part M and the outer foot part L so as to include the first bent groove 21, the second bent groove 22, the first inhibiting part 31 or the second inhibiting part 32 It will be easy to know by cutting in a strip shape parallel to the front longitudinal groove 10 and performing a bending test. Further, as means for increasing the value of the bending rigidity ELz against the dorsiflexion of the shoe sole, adjusting the hardness, thickness and the like of the outsole and / or the midsole can be mentioned.
  • the first inhibition part 31 includes a first auxiliary groove 31G shallower than the average depth of the deepest part 21d (FIG. 5) of the first bent groove 21.
  • the second blocking portion 32 includes a second auxiliary groove 32G that is shallower than the average depth of the deepest portion 22d (FIG. 5) of the second bent groove 22.
  • the longitudinal grooves 10 and 10 ⁇ / b> B, the first bent groove 21, the second bent groove 22, and the third bent groove 23 are formed in the midsole 4. That is, the outsole 3 is separated front and rear or inside and outside by these grooves 10, 10B, 21 to 23.
  • a part of the first auxiliary groove 31G in the first area 1A is formed in the outsole 3 and the other part is formed in the midsole 4.
  • a part of the second auxiliary groove 32G in the second area 2A is formed in the outsole 3 and the other part is formed in the midsole 4.
  • the top surfaces 20 of the first and second bent grooves 21 and 22 extend from the front longitudinal groove 10 (FIG. 1) to the edges Me and Le of the inner foot M or the outer foot L, respectively. Has a downward slope down. That is, each of the bent grooves 21 and 22 is formed so as to become shallower toward the edges Me and Le of the inner foot portion M or the outer foot portion L.
  • the first or second bent grooves 21 and 22 extend from the front longitudinal groove 10 in FIG. 1 to the edges Me and Le of the inner foot portion M or the outer foot portion L.
  • notches N extending vertically are provided on the side surfaces of the inner foot M and the outer foot L at the ends of the first and second bent grooves 21 and 22. .
  • the hardness of the midsole 4 in FIG. 1 and the like is set so that the value measured with an Asker C hardness meter is 45 ° to 65 °, and the hardness of the outsole 3 is a value measured with a JISA hardness meter. May be set to be 63 ° to 73 °.
  • CL indicates a virtual shoe center line. This line CL is a straight line connecting the front end O1 and the rear end O2 of the shoe sole or the shoe. Although the virtual shoe center line CL and the vertical groove 10 or its extension line are set to intersect in front of the vertical groove 10, the line CL and the vertical groove 10 may be parallel to each other.
  • the longitudinal groove 10 may be provided in parallel along the edge Le of the outer foot, or may be provided in parallel along the line CL, or between these It may be arranged at an angle.
  • the vertical groove 10 is formed at least in the outsole 3, that is, between the divided outsoles 3 and 3, and a rear vertical groove 10B is formed in the outsole 3 behind the vertical groove 10, and the 2
  • the two vertical grooves 10, 10B are connected to each other in the front-rear direction.
  • FIG. 6 shows a second embodiment.
  • an inverted Z-shaped groove is provided in the forefoot portion as in the first embodiment shown in FIGS.
  • Example 1 the differences from Example 1 will be mainly described.
  • the width W10 of the front longitudinal groove 10 is larger than the width W21 of the first bent groove 21 and the width W22 of the second bent groove 22.
  • the first bent groove 21 extends from the longitudinal groove 10 toward the edge Me of the inner foot M, but does not extend to the edge Me of the inner foot M.
  • the first inhibition part 31 includes a first auxiliary groove 31G and a first uneven part 31C.
  • the second inhibition part 32 includes a second auxiliary groove 32G and a second uneven part 32C.
  • the top surface of the deepest portion 21d of the first bent groove 21 is set at a higher position away from the road surface than the first uneven portion 31C and the first auxiliary groove 31G.
  • the top surface of the deepest portion 22d of the second bent groove 22 is set at a higher position away from the road surface than the first uneven portion 32C and the first auxiliary groove 32G.
  • FIG. 7 to 9 show a third embodiment.
  • a Z-shaped groove is provided from the front foot portion to the middle foot portion. This example is suitable for running.
  • the forefoot part, the middle foot part, and the rear foot part mean parts that cover the front foot middle foot and the rear foot, respectively.
  • the forefoot consists of 5 metatarsals and 14 ribs.
  • the midfoot consists of a scaphoid bone, a cubic bone and three wedge-shaped bones.
  • the hind leg consists of the talus and the ribs.
  • a vertical groove 10 As clearly shown in FIGS. 7 and 9, a vertical groove 10, a first bent groove 21, a second bent groove 22, a third bent groove 23, and a fourth bent groove 24 are formed on the ground contact surface side of the shoe sole. ing.
  • the longitudinal groove 10 is continued from the front foot portion to the rear foot portion.
  • the first bent groove 21 of the rear Y2 is directed obliquely rearward from the first portion 11 of the longitudinal groove 10 toward the edge Le of the outer foot L and below the cubic bone Bc of FIG. Extend.
  • the second bent groove 22 of the front Y1 in FIG. 7 is formed on the inner foot portion M from the second portion 12 of the front Y1 to the front Y1 of the first groove 11 than the first portion 11 of the longitudinal groove 10. It extends toward the edge Me and obliquely forward so as to pass under the first metatarsal bone B1 of FIG.
  • the longitudinal groove 10 and the first and second bent grooves 21 and 22 cross the middle leg portion in a Z-shape in a zigzag manner.
  • the first angle ⁇ formed by the first bent groove 21 and the longitudinal groove 10 is set to an obtuse angle.
  • a second angle ⁇ formed by the second bent groove 22 and the longitudinal groove 10 is set to an obtuse angle.
  • the third bending groove 23 passes from the longitudinal groove 10 toward the outer leg edge Le of the outer foot portion L and below the fourth and fifth metatarsals B4 and B5. And it extends toward diagonally backward along the MP joint. Thereby, moderate bending of the foot at the MP joint is promoted.
  • the fourth bent groove 24 intersects the longitudinal groove 10 and crosses the shoe sole in front of the third bent groove 23.
  • the fourth bending groove 24 may be disposed along the (proximal) intercostal joint J.
  • a virtual first area 1 ⁇ / b> A obtained by extending the first bent groove 21 toward the inner foot M is provided with a first inhibition portion 31 that is less bent than the first bent groove 21. Yes.
  • a virtual second area 2A obtained by extending the second bent groove 22 toward the outer leg portion L a second inhibition portion 32 that is less bent than the second bent groove 22 is provided.
  • the first inhibition part 31 includes a first uneven part 31C.
  • the second inhibition part 32 includes a second uneven part 32C.
  • unevenness as shown in FIG. 6 may be formed in a portion with a rough dot pattern.
  • the longitudinal groove 10, the first bent groove 21, and the second bent groove 22 in FIG. 7 are formed in the midsole 4.
  • the first uneven portion 31 ⁇ / b> C of the first area 1 ⁇ / b> A is formed on the outsole 3.
  • the second uneven portion 32 ⁇ / b> C of the second area 2 ⁇ / b> A is formed on the outsole 3.
  • the top surfaces 20 of the first and second bent grooves 21 and 22 are inclined downward from the longitudinal groove 10 toward the edges Me and Le of the inner foot portion M or the outer foot portion L.
  • the first or second bent grooves 21 and 22 extend from the longitudinal groove 10 in FIG. 7 to the edges Me and Le of the inner foot portion M or the outer foot portion L. At the ends of the first and second bent grooves 21 and 22, a notch N extending vertically is provided on the side surface of the inner foot M or the outer foot L in FIGS. 8A and 8B.
  • the vertical groove 10 in the Z-shaped groove of the middle foot portion in FIGS. 7 and 9 may have a different inclination from the vertical groove 10 of the inverted Z-shaped groove in the front foot portion in FIG. .
  • the vertical groove 10 of the Z-shaped grooves of the middle foot may be provided in parallel to the shoe center line CL, or the vertical groove 10 and the line CL May be arranged so as to end toward the rear.
  • FIG. 10 and 11 show Examples 4 and 5, respectively. These examples are modifications of the first embodiment in which a reverse Z-shaped groove is provided in the front foot portion of the shoe sole for the left foot. As shown in the example of FIG. 10, the first bending groove 21 may extend to the middle of the inner foot portion M without extending from the first portion 11 of the longitudinal groove 10 to the edge Me of the inner foot portion M.
  • the first and / or second bent grooves 21 and 22 may be tapered from the longitudinal groove 10 toward the edges Me and Le.
  • the first and second angles ⁇ and ⁇ may be angles formed by the edges of the grooves 10, 21 and 22.
  • FIG. 12 shows a sixth embodiment.
  • the shoe sole has a Z-shaped groove on the middle foot and an inverted Z-shaped groove on the front foot.
  • the width W10 of the front longitudinal groove 10 is larger than the average widths W21 and W22 of the first and second bent grooves 21 and 22 connected to the front longitudinal groove 10.
  • the width W10 of the rear longitudinal groove 10B is larger than the average widths W21 and W22 of the first and second bent grooves 21 and 22 connected to the rear longitudinal groove 10B.
  • Each of the bent grooves 21 and 22 may not extend to the inner and outer edges Me and Le. Further, a plurality of notches N may be provided on the edges Me and Le in the vicinity of the ends of the bent grooves 21 and 22.
  • FIG. 13A shows Example 7.
  • FIG. This example has an inverted Z-shaped groove in the middle foot.
  • the inverted Z-shaped groove of this example will suppress the valgus of the midfoot. Therefore, it will be suitable for court competition.
  • test ex. test ex.
  • comparative example comparative example
  • the midsole may be provided with a gel or sheath-like cushioning part.
  • channel may be formed only by the outsole.
  • the shoe sole may have an outsole and a midsole, or may have only a midsole. Accordingly, such changes and modifications are to be construed as within the scope of the present invention.
  • the present invention can be applied to various athletic shoes such as running, training, fitness, and court competition.

Landscapes

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

Abstract

L'invention concerne une semelle de chaussure qui comprend une rainure longitudinale s'étendant dans le sens avant-arrière, une première rainure courbée s'étendant en diagonale vers l'arrière à partir d'une première partie de la rainure longitudinale jusqu'au bord d'une section de pied interne, et une seconde rainure courbée vers l'avant s'étendant en diagonale vers l'avant depuis une seconde partie vers l'avant de la première partie de la rainure longitudinale jusqu'à l'autre bord de la partie de pied externe Un premier angle formé entre la première rainure courbée et la rainure longitudinale est défini comme un angle obtus, et un second angle formé entre la seconde rainure courbée et la rainure longitudinale est défini comme un angle aigu.
PCT/JP2017/015418 2017-04-17 2017-04-17 Semelle de chaussure WO2018193489A1 (fr)

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PCT/JP2017/015418 WO2018193489A1 (fr) 2017-04-17 2017-04-17 Semelle de chaussure
JP2019513508A JPWO2018193489A1 (ja) 2017-04-17 2017-04-17 シューソール

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/015418 WO2018193489A1 (fr) 2017-04-17 2017-04-17 Semelle de chaussure

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WO2018193489A1 true WO2018193489A1 (fr) 2018-10-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230001296U (ko) * 2021-12-16 2023-06-23 아쿠쉬네트 컴퍼니 다중-표면 트랙션 바닥창을 갖는 골프화

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11332603A (ja) * 1998-05-29 1999-12-07 Moon Star Co 靴
JP2007508055A (ja) * 2003-10-09 2007-04-05 ナイキ・インコーポレーテッド 伸縮可能なアッパーと分節された履物底構造とを有する履物
WO2010137068A1 (fr) * 2009-05-27 2010-12-02 株式会社アシックス Semelle de chaussure appropriée à l'entraînement
JP2011255030A (ja) * 2010-06-10 2011-12-22 Bridgestone Sports Co Ltd 靴底および靴
JP5923224B1 (ja) * 2015-07-17 2016-05-24 株式会社アシックス 歩行に適した靴の靴底
JP2016209482A (ja) * 2015-05-13 2016-12-15 美津濃株式会社 ゴルフシューズのソール構造体

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JP4421725B2 (ja) * 2000-02-15 2010-02-24 ブリヂストンスポーツ株式会社 ゴルフシューズ用ソール
JP3831686B2 (ja) * 2001-06-07 2006-10-11 美津濃株式会社 スポーツシューズのソール組立体

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11332603A (ja) * 1998-05-29 1999-12-07 Moon Star Co 靴
JP2007508055A (ja) * 2003-10-09 2007-04-05 ナイキ・インコーポレーテッド 伸縮可能なアッパーと分節された履物底構造とを有する履物
WO2010137068A1 (fr) * 2009-05-27 2010-12-02 株式会社アシックス Semelle de chaussure appropriée à l'entraînement
JP2011255030A (ja) * 2010-06-10 2011-12-22 Bridgestone Sports Co Ltd 靴底および靴
JP2016209482A (ja) * 2015-05-13 2016-12-15 美津濃株式会社 ゴルフシューズのソール構造体
JP5923224B1 (ja) * 2015-07-17 2016-05-24 株式会社アシックス 歩行に適した靴の靴底

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230001296U (ko) * 2021-12-16 2023-06-23 아쿠쉬네트 컴퍼니 다중-표면 트랙션 바닥창을 갖는 골프화
KR200498397Y1 (ko) 2021-12-16 2024-10-07 아쿠쉬네트 컴퍼니 다중-표면 트랙션 바닥창을 갖는 골프화

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