WO2017061002A1 - アッパーおよびソールを有する靴 - Google Patents
アッパーおよびソールを有する靴 Download PDFInfo
- Publication number
- WO2017061002A1 WO2017061002A1 PCT/JP2015/078600 JP2015078600W WO2017061002A1 WO 2017061002 A1 WO2017061002 A1 WO 2017061002A1 JP 2015078600 W JP2015078600 W JP 2015078600W WO 2017061002 A1 WO2017061002 A1 WO 2017061002A1
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- WIPO (PCT)
- Prior art keywords
- reinforcing
- shoe
- portions
- area
- flexible material
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- Legal status (The legal status 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 status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/24—Insertions or other supports preventing the foot canting to one side , preventing supination or pronation
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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
- A43B23/0245—Uppers; Boot legs characterised by the constructive form
- A43B23/0265—Uppers; Boot legs characterised by the constructive form having different properties in different directions
-
- 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
- A43B23/0245—Uppers; Boot legs characterised by the constructive form
- A43B23/0265—Uppers; Boot legs characterised by the constructive form having different properties in different directions
- A43B23/027—Uppers; Boot legs characterised by the constructive form having different properties in different directions with a part of the upper particularly flexible, e.g. permitting articulation or torsion
-
- 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
- A43B23/0245—Uppers; Boot legs characterised by the constructive form
- A43B23/0265—Uppers; Boot legs characterised by the constructive form having different properties in different directions
- A43B23/0275—Uppers; Boot legs characterised by the constructive form having different properties in different directions with a part of the upper particularly rigid, e.g. resisting articulation or torsion
Definitions
- the present invention mainly relates to a shoe having an improved function of suppressing excessive pronation during running.
- Runners aiming to improve their records in a full marathon may run a distance of 20-30 km in a single training. According to our experimental results, it was clarified that the valgus valgus angle increased with long-distance travel of 10 km or more even when running with shoes with a reinforced midsole on the inner foot side.
- FIG. 11A shows a change in the valgus angle ⁇ of the buttocks immediately after contact with the ground.
- first peak P11 is considered to be a deformation caused by the pronation of the buttocks immediately after contact with the ground.
- second peak P12 is considered to be a deformation caused by the fall of the inner arch portion causing the entire foot to fall inward.
- FIG. 11B shows the relationship between the peak value of the second peak P12 of the valgus angle ⁇ and the travel distance. As can be seen from FIG. 11B, the absolute value of the valgus angle ⁇ tends to gradually increase as the travel distance increases.
- Such a phenomenon is considered to be due to fatigue of muscles such as feet due to running and muscular strength, and a decrease in the function of supporting (holding) the skeleton of the foot, particularly the arch.
- the object of the present invention is to improve the function of suppressing excessive pronation during traveling, that is, to improve the stability performance by improving the structure of the upper.
- FIGS. 12A and 12B show the deformation of the upper when driving 1 km (0.625 miles) and 15 km (9.375 miles), respectively.
- a dot pattern is attached to a portion where the upper portion is elongated.
- FIG. 13A shows the relationship between the elongation of the upper arch part and the valgus angle ⁇ of the buttocks.
- the absolute value of the valgus angle ⁇ increases as the elongation of the upper arch portion increases.
- the angle ⁇ formed by the direction Da in which the upper in FIG. 12B is extended and the ground contact surface 8F of the sole 8 is measured the angle ⁇ is about 46.7 degrees plus or minus 7.1 degrees on average, so individual differences, etc.
- the excessive pronation can be effectively suppressed by arranging the reinforcing member in the range of 30 to 60 degrees.
- the upper formed of a material with such material characteristics can achieve a soft foot contact until it exhibits rigidity, and can suppress the collapse of the foot (valgus) during the phase that requires support. I will.
- FIG. 14A shows the foot when kicking from heel rise to toe off in barefoot running.
- a dot pattern is attached to a portion having a large elongation. Further, as the elongation increases, a darker dot pattern is given.
- a direction Df in which the surface of the foot extends when kicking out is indicated by an arrow.
- the direction Df in which the surface of the foot in FIG. 14A extends intersects with a large angle orthogonal to the direction Da in which the upper in FIG. 12B extends. Therefore, in the upper part covering the arch of the foot on the inner side of the front foot, it is assumed that the required elongation characteristic is that it is difficult to extend in the direction Da in FIG. 12B and that it is easy to extend in the direction Df substantially orthogonal to this. Is done.
- FIG. 14B is a bar graph showing the results of this measurement.
- the measurement point P8 in FIG. 14A is generally located at the boundary between the sole (arch) and the inner surface of the foot.
- the points P5 and P6 are located below the bone body B11 of the first metatarsal bone B1 in FIG. 12B slightly above the arch or directly below the bone body B11.
- the part where the surface of the foot extends in the direction Df in FIG. 14A is the measurement points P5 and P6 in FIG. 14A, as can be seen from the bar graph in FIG. 14B. Accordingly, the surface of the foot extends in the direction Df below the bone body B11 of the first metatarsal bone B1 in FIG. 12B or directly below the bone body B11. Therefore, in such a part, the material property required for the upper is that it tends to extend upward obliquely rearward. Thereby, the fitting performance of the upper of such a part will be able to be maintained or improved.
- the present invention in a first aspect, is a shoe having an upper 3 and a sole 8, wherein the shoe is A flexible material 30 that forms part of the upper 3 and covers the inner surface of the foot;
- the first and second reinforcing portions 1 and 2 attached to the surface 3F of the flexible material which is less likely to extend than the flexible material 30;
- the flexible material 30 includes the to-be-reinforced area 4 reinforced by the first and second reinforcing portions 1 and 2,
- the first reinforcing portion 1 continuously or intermittently extends upward or downward from a boundary portion 38 with the sole 8 of the upper 3 in a strip shape or a linear shape
- the second reinforcing portion 2 is disposed at the rear R of the first reinforcing portion 1 and extends continuously or intermittently in a band shape or a linear shape upward from the boundary portion 38 of the upper 3 with the sole 8.
- the area 4 is defined by a first envelope 1L along the rear edge 1E of the first reinforcing portion and a second envelope 2L along the front edge 2E of the second reinforcing portion, A virtual first center line C1 that divides the area 4 into a first part 41 in which a leading edge 4F is defined by the first envelope and a second part 42 in which a trailing edge 4R is defined by the second envelope.
- the area 4 extends along the The area 4 includes an upper end portion 43, a lower end portion 44, and an intermediate portion 45 between the upper end portion 43 and the lower end portion 44,
- the width 4W of the area in the direction D2 perpendicular to the extending direction D1 of the first center line C1 is the maximum in the intermediate portion 45 and the width 4W of the area from the intermediate portion 45 toward the upper end portion 43. Is gradually smaller, and the width 4W of the area gradually decreases from the intermediate portion 45 toward the lower end portion 44,
- the upper end portion 43 of the area 4 is disposed in front of the lower end portion 44.
- the upper end portion of the reinforced area 4 is disposed in front of the lower end portion. Therefore, the first center line C1 extends obliquely forward and upward, and therefore the upper covering the inner side surface of the foot may not easily extend in the direction Da in which the upper is extended. Therefore, there is a possibility that the excessive pronation can be suppressed.
- the width in the direction D2 orthogonal to the first center line C1 is maximum in the intermediate portion 45 and gradually decreases toward the upper end portion and the lower end portion of the reinforced area 3A. Therefore, it is easy to extend in the direction D2 orthogonal to the first center line C1 in the intermediate portion 45 of the area 3A. Therefore, the fitting performance of the upper may be maintained or improved.
- the surface 3F of the flexible material 30 means that not only the outer surface of the upper but also the inner surface in contact with the foot is included.
- the “first central line C1” may be a virtual line that divides the area 4 into the first part 41 and the second part 42 approximately equally.
- the “boundary portion 38 of the upper 3 with the sole 8” includes the upper portion near the boundary in addition to the boundary itself. “Upward from the boundary” includes the case of going obliquely upward from the boundary.
- Continuous or intermittently means that each of the reinforcing portions 1 and 2 is completely continuous, and includes a case where one reinforcing portion is separated into a plurality of portions. This is because even if the reinforcing portion is separated into a plurality of portions, the extension of the flexible material 30 in the direction in which the reinforcing portion extends is suppressed by essentially extending in a strip shape or a linear shape.
- Strip-shaped means that the width and thickness of each reinforcing portion are sufficiently smaller than the length in the direction in which each reinforcing portion extends.
- Linear is, for example, a thread form in which a cotton thread or nylon thread that is difficult to stretch is sewn to the upper part, and includes a thread that is narrower than a belt.
- envelope means a curve that shares a tangent with a given family of curves, that is, a curve that touches all the given (generally infinite) curves.
- first and second envelopes 1L and 2L are respectively It will generally coincide with the rear edge 1E of the first reinforcing part 1 and the front edge 2E of the second reinforcing part 2.
- the present invention in a second aspect, is a shoe having an upper 3 and a sole 8, wherein the shoe is A flexible material 30 that forms part of the upper 3 and is adapted to cover the inner surface of the foot;
- the first and second reinforcing portions 1 and 2 attached to the surface 3F of the flexible material which is less likely to extend than the flexible material 30;
- the first reinforcing portion 1 continuously or intermittently extends upward or downward from a boundary portion 38 with the sole 8 of the upper 3 in a strip shape or a linear shape
- the second reinforcing portion 2 is disposed at the rear R of the first reinforcing portion 1 and extends continuously or intermittently in a band shape or a linear shape upward from the boundary portion 38 of the upper 3 with the sole 8.
- the first envelope 1L along the rear edge 1E of the first reinforcing portion has a first bending point O1 bent at a position above the boundary portion 38 and below the upper edge 3E of the upper 3.
- the second envelope 2L along the front edge 2E of the second reinforcing portion is a second bending point O2 bent above the boundary 38 and at a position below the upper edge 3E of the upper 3.
- the first reinforcing portion 1 and the second reinforcing portion 2 gradually increase from each other.
- the first reinforcing portion 1 and the second reinforcing portion 2 gradually gradually from each other.
- the lower ends 14, 24 of the first and second reinforcements are adapted to the area of the arch inside the foot,
- the upper end 13 of the first reinforcing part is adapted to be behind the part of the main ball O or the main ball O,
- the upper end 13 of the first reinforcing part is disposed in front F of the lower end 14 of the first reinforcing part, and / or the upper end 23 of the second reinforcing part 2 is lower than the lower end 24 of the second reinforcing part. Is also arranged in front F.
- the upper end 13 of the first reinforcement portion is disposed forward of the lower end 14 of the first reinforcement portion, and / or the upper end 23 of the second reinforcement portion is the second reinforcement. It is arrange
- each reinforcement part 1 and 2 will be able to reinforce the site
- the present invention in a third aspect, is a shoe having an upper 3 and a sole 8, wherein the shoe is A flexible material 30 that forms part of the upper 3 and is adapted to cover the inner surface of the foot;
- the first and second reinforcing portions 1 and 2 attached to the surface 3F of the flexible material which is less likely to extend than the flexible material 30;
- the first reinforcing portion 1 continuously or intermittently extends in a strip shape or a linear shape upward from a boundary portion 38 between the upper 3 and the sole 8;
- the second reinforcing portion 2 is disposed at the rear R of the first reinforcing portion 1 and extends continuously or intermittently in a strip shape or a linear shape upward from the boundary portion 38 between the upper 3 and the sole 8.
- the first envelope 1L along the rear edge 1E of the first reinforcing portion has a first bending point O1 bent at a position above the boundary portion 38 and below the upper edge 3E of the upper 3.
- the second envelope 2L along the front edge 2E of the second reinforcing portion is a second bending point O2 bent above the boundary 38 and at a position below the upper edge 3E of the upper 3.
- the first reinforcing portion 1 and the second reinforcing portion 2 gradually increase from each other.
- the first reinforcing portion 1 and the second reinforcing portion 2 gradually gradually from each other.
- the lower ends 14, 24 of the first and second reinforcing portions are arranged in a range of 40% to 60% of the total length of the shoe from the front end FE in the front-rear direction X of the shoe,
- the upper ends 13, 23 of the first and second reinforcing portions are arranged in a range of 25% to 45% of the total length of the shoe from the tip FE,
- the upper end 13 of the first reinforcing part is arranged in front F of the lower end 14 of the first reinforcing part, and the upper end 23 of the second reinforcing part is arranged in front F of the lower end 24 of the second reinforcing part.
- the lower ends 14 and 24 of the respective reinforcing portions are disposed in a range of 40% to 60% of the total length of the shoe from the front end FE in the front-rear direction X of the shoe. In this case, the lower ends 14 and 24 are easily adapted to the arch portion on the inner side of the foot.
- the upper end 13 of the first reinforcing portion is disposed in front of the lower end 14 of the first reinforcing portion, and the upper end 23 of the second reinforcing portion is the second reinforcing portion. It is arranged in front of the lower end 24.
- the upper ends 13 and 23 of the first and second reinforcing portions are arranged in a range of 25% to 45% of the total length of the shoe from the tip FE.
- each reinforcing portion When the upper end and the lower end of each reinforcing portion are arranged in such a range, and each upper end is forward of each lower end, the lower end of each reinforcing portion is adapted to the arch inside the foot, and obliquely forward upward The lower end of the reinforcement will be pulled. Therefore, the pronation suppression function will be easily demonstrated.
- the first reinforcement 1L and the second envelope 2L extend upward from the first and second bending points O1 and O2, respectively.
- the portion 1 and the second reinforcing portion 2 are gradually approaching each other, and the first envelope 1L and the second envelope 2L are respectively downward from the first and second bending points O1 and O2.
- the first reinforcing portion 1 and the second reinforcing portion 2 gradually approach each other as they extend. Therefore, the area reinforced by the reinforcing portions 1 and 2 will easily extend along a straight line connecting the bending points O1 and O2. Therefore, the fitting performance of the upper may be maintained or improved.
- the present invention is a shoe having an upper 3 for wrapping a foot, Comprising a flexible material 30 that constitutes a part of the upper 3 and covers the inner surface of the forefoot, and reinforcing portions 1 and 2 attached to the surface 3F of the flexible material 30 that are less likely to extend than the flexible material 30;
- the reinforcing portions 1 and 2 extend obliquely rearward and downward from the upper first ends 11 and 12 toward the lower second ends 21 and 22, respectively.
- An angle ⁇ formed between a virtual straight line SL passing through the first end portions 11 and 12 and the second end portions 21 and 22 and the ground contact surface 8F of the sole is set to 30 ° to 60 °,
- the rigidity of the virtual area VA including the flexible material 30 and the reinforcing portion satisfies the following conditions (a) to (c).
- (A) The virtual area VA extends along the virtual straight line SL.
- An imaginary straight line SL passing through the first end portions 11 and 12 and the second end portions 21 and 22 of the reinforcing portion extending obliquely rearward and downward on the inner side of the front foot is formed by the ground contact surface 8F (FIG. 2) of the sole.
- the angle ⁇ is set to 30 ° to 60 °. When the angle ⁇ is set in such a range, the upper will not easily extend in the direction Da in which the upper is extended. Therefore, excessive pronation can be suppressed.
- FIG. 1 is a schematic inner side view showing a shoe of Example 1 of the present invention.
- FIG. 2 is a schematic inner side view of the same.
- FIG. 3 is an internal side view showing the relationship between the foot skeleton and the shoes.
- FIG. 4 is an enlarged inner side view showing the reinforcing portion and the flexible material.
- FIG. 5 is a sectional view conceptually showing the inner part of the upper.
- FIG. 6 is an enlarged inner side view showing a part of the upper including the reinforcing portion.
- FIG. 7 is an inner surface view illustrating a part of the upper including the reinforcing portion according to the second embodiment.
- FIG. 8A and FIG. 8B are inner side views showing a part of an upper including a reinforcing portion according to Examples 3 and 4, respectively.
- FIG. 9A and FIG. 9B are inner side views showing a part of an upper including a reinforcing portion according to Examples 5 and 6, respectively.
- FIG. 10 is a schematic inner side view of a shoe showing another embodiment of the reinforcing portion.
- FIG. 11A is a graph showing changes in the hallux valgus angle ⁇
- FIG. 11B is a graph showing the relationship between the value of the second peak of the valgus angle ⁇ and the travel distance.
- FIG. 12A and FIG. 12B are schematic inner side views of the shoe showing the deformation state of the upper when traveling a predetermined distance, respectively.
- FIG. 13A is a graph showing the correlation between the elongation of the upper and the valgus angle ⁇ , FIG.
- FIG. 13B is a graph showing the relationship between the elongation and the load in the test piece
- FIG. 13C is a front view showing the test piece and the test method.
- FIG. 14A is an inner side view of the foot showing the elongation of the surface of the foot
- FIG. 14B is a bar graph quantitatively showing the measured value of the elongation for each part of the foot.
- FIG. 15 is a graph showing the results of measurement for the valgus angle ⁇ .
- At least a surface material of the flexible material can be expanded and contracted in the vertical direction Y and the front-back direction X of the shoe. Including a dough.
- Such a mesh-like fabric will improve the fitting performance of the upper in the reinforced area 4 in which deformation is restrained by the reinforcing portions 1 and 2.
- the mesh-shaped fabric is more easily stretched in the front-rear direction X than in the up-down direction Y.
- the fabric Since the mesh-shaped fabric easily expands and contracts in the front-rear direction, the fabric easily extends in the direction in which the surface of the foot extends when kicking out, and the fit performance will be further improved. On the other hand, when the mesh-like fabric is harder to extend in the vertical direction than in the front-rear direction, the fabric cooperates with the reinforcing portions 1 and 2 to make the upper difficult to stretch in the vertical direction, and excessive pronation is easily suppressed. Let's go.
- the mesh-shaped dough may have a large number of through holes that can be confirmed with the naked eye.
- the shape of the through hole may be oval, elliptical, circular, or rhombus.
- the material constituting the mesh-like fabric may be a synthetic fiber or a natural fiber.
- the length 4L of the area 4 in the direction D1 in which the virtual first center line C1 that divides the reinforced area 4 forward and backward is longer than the maximum width 4W of the area 4. large.
- the to-be-reinforced area 4 When the length of the to-be-reinforced area 4 is larger than the width 4W of the to-be-reinforced area 4, the to-be-reinforced area 4 is difficult to extend in the direction D1 in which the center line extends, whereas it is easy to extend in the width direction, that is, the front-rear direction. Therefore, further improvement of the suppression performance and the fitting performance of pronation can be expected.
- the flexible material 30 includes the reinforced area 4 defined by the first and second envelopes 1L and 2L, and the first bending point O1 to the first bending point O1.
- the length 4L of the area 4 in the length direction orthogonal to the direction toward the second bending point O2 is larger than the width 4W of the area 4 between the first bending point O1 and the second bending point O2.
- an angle ⁇ formed by the first center line C1 and the contact surface 8F of the sole is set to 30 ° to 60 °.
- the angle formed by each line with the ground contact surface 8F of the sole means an acute angle formed in front of each line or its vertical angle.
- the first and second reinforcing portions 1 and 2 are formed from a middle point O3 of an imaginary line segment connecting the first bending point O1 and the second bending point O2.
- An angle ⁇ formed by a virtual second center line C2 extending to a point O4 included in both upper ends 13 and 23 or a point O4 between both upper ends 13 and 23 and the ground contact surface 8F of the sole 8 is 30 ° to 60 °.
- the “second center line C2” may be a virtual line that divides the upper half of the area 4 approximately equally.
- the direction Da in which the upper is extended will be 46.7 ° plus or minus 7.1 ° with respect to the ground plane. Therefore, when the angle ⁇ is set to 30 ° to 60 °, the function of suppressing the extension of the upper is high, and the function of suppressing excessive pronation will be improved.
- first center line C1 and the second center line C2 will essentially coincide with each other.
- the upper ends 13 and 23 of the first and second reinforcing portions 1 and 2 are adjacent to or continuous with an engaging portion H with which a shoe race is engaged,
- the lower ends 14 and 24 of the first and second reinforcing portions 1 and 2 are adjacent to or continuous with the upper surface 81 of the sole 8.
- the first and second reinforcing portions 1 and 2 extend long over the entire length or most of the portion from the engaging portion H to which the shoe race engages to the upper surface 81 of the sole 8. Therefore, the function of suppressing the extension of the upper is high, and the function of suppressing excessive pronation will be improved.
- the “engagement portion H” includes eyelet holes and loops through which shoelaces pass, and includes eyelet members (eyelet decorations) and U-shaped tubes with which the shoelaces engage.
- the first and second reinforcements are adapted in a state in which the virtual first center line C1 is adapted to intersect the bone body B11 of the first metatarsal bone B1.
- Parts 1 and 2 are arranged.
- the first and second reinforcements are adapted in a state where the virtual second center line C2 is adapted to intersect the bone body B11 of the first metatarsal bone B1.
- Parts 1 and 2 are arranged.
- the upper part covering the bone body of the first metatarsal receives a large pulling force between the engaging portion with which the shoe race engages and the sole 8 when kicking out.
- the two reinforcing portions 1 and 2 suppress the extension of the upper against such a large pulling force. Therefore, the suppression function of excessive pronation will be improved.
- the lower ends 14 and 24 of the first and second reinforcing portions are adapted to the arch portion inside the foot, and the upper end 13 of the first reinforcing portion is the portion of the main ball O. Or adapted to be rear R from the baseball O,
- the upper end 13 of the first reinforcing part is disposed in front of the lower end 14 of the first reinforcing part, and / or the upper end 23 of the second reinforcing part is more than the lower end 24 of the second reinforcing part. It is arranged in the front.
- the lower ends 14 and 24 of the first and second reinforcing portions are arranged in a range of 40% to 60% of the total length of the shoe from the front end FE in the front-rear direction X of the shoe,
- the upper ends 13 and 23 of the first and second reinforcing portions are arranged in a range of 25% to 45% of the total length from the tip FE,
- the upper end 13 of the first reinforcing portion is disposed in front of the lower end 14 of the first reinforcing portion, and the upper end 23 of the second reinforcing portion is disposed in front of the lower end 24 of the second reinforcing portion.
- each reinforcing portion When the upper end and the lower end of each reinforcing portion are arranged in such a range, and each upper end is forward of each lower end, the lower end of each reinforcing portion is adapted to the arch inside the foot, and obliquely forward upward The lower end of the reinforcement will be pulled. Therefore, the decrease in the arch will be suppressed, and an excessive pronation suppressing function will be easily exhibited.
- each reinforcing portion when the lower ends 14 and 24 of each reinforcing portion are disposed at a position less than the 40% from the front end FE, or when the positions of the lower ends 14 and 24 are disposed at a position exceeding the 60% from the front end FE, The lower end is less likely to be fitted to the inner arch.
- the angle ⁇ may be too small.
- the angle ⁇ may be too large.
- the lower ends 14 and 24 of the first and second reinforcing portions are 45% to 55% of the total length of the shoe from the front end FE in the front-rear direction X of the shoe. % Is placed in the range
- the upper ends 13 and 23 of the first and second reinforcing portions are arranged in a range of 30% to 40% of the total length from the tip FE,
- the upper end 13 of the first reinforcing portion is disposed in front of the lower end 14 of the first reinforcing portion, and the upper end 23 of the second reinforcing portion is disposed in front of the lower end 24 of the second reinforcing portion.
- the lower ends 14 and 24 of the reinforcing portions are disposed in the range of 45% to 55% from the front end FE in the front-rear direction X of the shoe, and the upper ends 13 and 23 of the first and second reinforcing portions are It is arranged in the range of 30% to 40% from the front end FE.
- the first and second center lines C1 and C2 and the intermediate portion 45 of the reinforced area 4 are the bone bodies B11 of the first metatarsal B1.
- the upper end 13 of the first reinforcing portion is disposed in front of the lower end 14 of the first reinforcing portion, and the upper end 23 of the second reinforcing portion is disposed in front of the lower end 24 of the second reinforcing portion.
- Such an arrangement would extend diagonally upward and forward so that both the first and second reinforcements cross the bone body B11 of the first metatarsal bone B1. Therefore, further improvement in stability performance and fit performance can be expected.
- an angle ⁇ 1 (inner angle) formed by the first reinforcing portion 1 and the second reinforcing portions 1 and 2 is formed at an acute angle at the upper ends 13 and 23 of the first and second reinforcing portions.
- An angle ⁇ 2 (inner angle) formed by the first reinforcement portion 1 and the second reinforcement portions 1 and 2 at the lower ends 14 and 24 of the first and second reinforcement portions 2 is formed as an acute angle
- An angle ⁇ 3 (inner angle) formed by the first reinforcing portion 1 at the first bending point O1 is an obtuse angle
- An angle ⁇ 4 (inner angle) formed by the second reinforcing portion 2 at the second bending point O2 is an obtuse angle.
- the first and second reinforcing portions are formed in a diamond shape that is long in the diagonally up and down direction.
- the acute angles ⁇ 1 and ⁇ 2 will be reduced, and the flexible material will extend slightly in the diagonally up and down direction.
- the obtuse angles ⁇ 3 and ⁇ 4 will be reduced, and the flexible material will expand relatively large. Such anisotropy will improve the function of both stability and fit performance.
- Example 1 A first embodiment of the present invention will be described below with reference to FIGS.
- shoes for the right foot are exemplified.
- the shoe shown in FIG. 1 is, for example, a shoe for competition or running, and the upper 3 is fixed on the sole 8.
- the upper 3 includes a flexible material 30, first and second reinforcing portions 1 and 2, and a shoe race (clamping member) (not shown).
- the illustration of shoelaces is omitted for easy understanding of the drawings.
- the sole 8 is disposed under the upper 3 and contacts the road surface.
- the flexible material 30 may wrap the inner side surface, the outer side surface, the toe and the heel of the forefoot, and may have a tongue piece 39 on the front F of the wearing mouth 7.
- the reinforcement parts 1 and 2 and the shoelace are for fitting the flexible material 30 to the instep.
- 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.
- the sole 8 may include a midsole 80 that wraps a resin foam such as EVA on a rubber outsole 83.
- the outsole 83 may be separated front and rear. Note that a well-known reinforcing device 89 that is attached to the lower surface of the midsole 80 and strengthens the midsole 80 may be provided in the stepped portion.
- the first and second reinforcing portions 1 and 2 are hatched.
- the first and second reinforcing portions 1 and 2 may be made of a natural material such as a resin material or cotton yarn.
- the resin material may be a material including a thermoplastic resin component and any appropriate other component. Examples of the thermoplastic resin component include thermoplastic elastomers and thermoplastic resins.
- FIG. 1 FIG. 4, and FIG. 5, various geometric patterns are given to the portion of the flexible material 30.
- the unpatterned portion of the upper 3 may be formed of a material having a rigidity higher than that of the flexible material 30.
- the flexible material 30 in FIG. 1 is arranged around a mesh-like first flexible part 31 that covers the inner surface of the first metatarsal bone B1 (FIG. 3), a mesh-like second flexible part 32 that covers the top surface of the toe, and the periphery thereof.
- the 3rd flexible part 33 made is formed with one sheet of cloth.
- the first flexible portion 31 is provided with a number of oval patterns
- the second flexible portion 32 is provided with a lattice pattern
- the third flexible portion 33 is provided with a fine dot pattern.
- the first flexible portion 31 defines a large number of elongated slits 3H having a plurality of rows and a plurality of rows.
- the through hole 3H may be formed long in the vertical direction Y, or may be formed long obliquely forward.
- the first and second reinforcing portions 1 and 2 are attached to the surface 3F of the flexible material 30.
- Adhesion may be replaced with the term “adhesion”, and conceptually means being joined so that it cannot be easily removed. Further, specifically, “attachment” means means such as adhesion, welding, printing or stitching (sewing), or a combination of these two or more means.
- the second flexible portion 32 is formed of a large lattice-like fabric, and has the smallest rigidity among the flexible materials 30 and is easily deformed.
- the first flexible part 31 has a large number of elliptical through holes 3 ⁇ / b> H and has intermediate rigidity between the second flexible part 32 and the third flexible part 33.
- the first and second reinforcing portions 1 and 2 are less likely to extend than the first flexible portion 31 of the flexible material 30.
- the first and second reinforcing portions 1 and 2 may be easier to extend than the third flexible portion 33 of the flexible material 30. This is because the third flexible portion 33 of the flexible material 30 is disposed at a site where the elongation should be suppressed, such as around the engaging portion H, and the flexible material 30 alone has a large tensile rigidity.
- the first and second reinforcing portions 1 and 2 that are harder to extend than the flexible material 30 means the majority of the flexible material 30 to which the first and second reinforcing portions 1 and 2 are attached. In the above, it means that the first and second reinforcing portions 1 and 2 should be harder to extend than the flexible material 30, and the first flexible portion 31 has anisotropy as described later, It means that the tensile rigidity per predetermined width of the first and second reinforcing parts 1 and 2 is larger than the tensile rigidity per predetermined width in the direction in which the first flexible part 31 is most easily extended.
- An interior material 35 and a backing material 36 are disposed on the back side of the flexible material 30, and these members 30, 35, 36 are sewn together at the periphery.
- the backing material 36 is disposed in a belt shape in the front-rear direction on the back side of the upper edge portion 37 of the inner portion of the upper in FIG. 1 and reinforces the engaging portion (for example, eyelet portion) H of the upper edge portion 37.
- the first flexible portion 31 of the flexible material 30 can expand and contract without being essentially restrained by the interior material 35. That is, when tension is applied in the vertical direction Y of the first flexible portion 31 in FIG. 4, a large number of oval through holes 3H are deformed thinly and slightly extend in the vertical direction Y. On the other hand, when a tension is applied in the front-rear direction X of the first flexible portion 31, a large number of oval through holes 3H expand into an elliptical shape and greatly expand. That is, the first flexible portion 31 of the flexible material 30 has anisotropy that is easier to extend in the front-rear direction X than in the vertical direction Y.
- the first reinforcing portion 1 (2) and the film 34 may be attached to the outer surface side of the flexible material 30 in FIG.
- the film 34 is indicated by a two-dot chain line in each figure, and is projected over a wider area than the reinforcing parts 1 and 2 and is welded to the reinforcing parts 1 and 2 and the flexible material 30 as clearly shown in FIG. Thereby, it becomes easy to prevent the thin reinforcing portions 1 and 2 from being peeled off from the flexible material 30.
- the reinforcing portions 1 and 2 or the film 34 welded or printed on the flexible material 30 of FIG. 5 will have a part of their resin structure enter into the fine recesses or gaps of the fibers of the flexible material 30. Therefore, the flexible member 30 is likely to be integrated with the reinforcing portions 1 and 2 to increase the rigidity of the reinforcing portions 1 and 2.
- the flexible material 30, the film 34, and the interior material 35 are sandwiched between a midsole 80 and an insole (insole) 82 like a normal upper. Thereby, the upper 3 and the midsole 80 are fixed to each other.
- the first reinforcing portion 1 extends in a band shape from a boundary portion 38 between the upper 3 and the sole 8 toward an upper edge portion 37 that is obliquely forward.
- the second reinforcing portion 2 is disposed at the rear R of the first reinforcing portion 1 and extends in a band shape from the boundary portion 38 between the upper 3 and the sole 8 toward the upper edge portion 37 obliquely forward.
- the engaging portions H are connected to the upper ends 13 and 23 of the first and second reinforcing portions 1 and 2.
- the upper end 13 of the first reinforcing portion 1 and the upper end 23 of the second reinforcing portion partially overlap each other and are continuous with each other in the front-rear direction X.
- the lower end 14 of the first reinforcing portion 1 and the lower end 24 of the second reinforcing portion 2 partially overlap each other and are continuous with each other in the front-rear direction X.
- the flexible material 30 includes a to-be-reinforced area 4 reinforced by the first and second reinforcing portions 1 and 2.
- the area 4 is defined by a first envelope 1L along the rear edge 1E of the first reinforcing portion 1 and a second envelope 2L along the front edge 2E of the second reinforcing portion 2.
- the first and second reinforcing portions 1 and 2 are continuous and smoothly continuous, and the rear edge 1E of the first reinforcing portion 1 and the front edge 2E of the second reinforcing portion 2 are respectively , Coincides with the first envelope 1L and the second envelope 2L.
- the area 4 is completely surrounded by the first and second reinforcing portions 1 and 2.
- the area 4 includes an upper end portion 43, a lower end portion 44, and an intermediate portion 45 between the upper end portion 43 and the lower end portion 44.
- the upper end portion 43 of the area 4 is disposed in front F of the lower end portion 44. That is, the area 4 extends obliquely forward from the lower end 44 to the upper end 43.
- the virtual first center line C ⁇ b> 1 includes the first portion 41 in which the front edge 4 ⁇ / b> F is defined by the first envelope 1 ⁇ / b> L (FIG. 4) and the second envelope 2 ⁇ / b> L ( In FIG. 4), it is divided roughly equally into the second part 42 in which the trailing edge 4R is defined.
- the virtual first center line C1 extends obliquely forward and upward.
- the angle ⁇ formed by the first center line C1 and the ground contact surface 8F of the sole 8 is set to about 40 ° to 55 ° in this example.
- the first center line C1 may be arranged so that a line obtained by extending the first center line C1 crosses the reinforcing device 89 and the stepped portion in a side view.
- the width 4W of the area 4 in the direction D2 orthogonal to the extending direction D1 of the first center line C1 is maximum at the intermediate portion 45.
- the width 4W of the area gradually decreases from the intermediate portion 45 toward the upper end portion 43.
- the width 4W of the area gradually decreases from the intermediate portion 45 toward the lower end portion 44.
- the area 4 is generally diamond-shaped.
- the two reinforcing portions 1 and 2 have a frame shape surrounding the rhombus.
- the frame-shaped reinforcing portions 1 and 2 do not have to be diamond-shaped as shown in FIG. 6, but may be rectangular as shown in FIG. 8B or non-rectangular as shown in FIG.
- the “frame shape” refers to the case where both the reinforcing portions 1 and 2 form a complete loop and surround the area 4 as shown in FIG. 10B, FIG. 8B to FIG. 9B, and FIG. 7 or 8A, and includes a case where the loop is incomplete but continuous.
- the length 4L of the area 4 in the direction D1 in which the virtual first center line C1 extends is larger than the maximum value of the width 4W of the area 4.
- an angle ⁇ 1 formed by the first reinforcing portion 1 and the second reinforcing portions 1 and 2 is formed at an acute angle at the upper ends 13 and 23 of the first and second reinforcing portions.
- An angle ⁇ 2 formed between the first reinforcing portion 1 and the second reinforcing portions 1 and 2 is formed at an acute angle at the lower ends 14 and 24 of the first and second reinforcing portions.
- angles ⁇ 1 and ⁇ 2 may be determined by the angle formed by the center line (illustrated by a two-dot chain line) of each of the reinforcing portions 1 and 2 or by the angle formed by the two straight lines forming the trailing edge 1E and the leading edge 2. Good.
- An angle ⁇ 3 formed by the first reinforcing portion 1 at the first bending point O1 of the first envelope 1L is an obtuse angle.
- An angle ⁇ 4 formed by the second reinforcing portion 2 at the second bending point O2 of the second envelope 2L is formed as an obtuse angle.
- the component force F2 when an external force F1 is applied to the first end portions 11 and 12 above the reinforcing portions 1 and 2 and the second end portions 21 and 22 below, the component force F2 is relatively small.
- the component force F2 when an external force F1 is applied to the bending portion 46 between the reinforcing portions 1 and 2, the component force F2 is relatively large. Therefore, the reinforcing portions 1 and 2 have anisotropy that is difficult to extend in the direction D1 along the first center line C1 and easily extends in the direction D2 perpendicular thereto.
- the lower ends 14 and 24 of the respective reinforcing portions are arranged in a range of 45% to 55% of the total length (100%) from the front end FE in the longitudinal direction X of the shoe. May be.
- the upper ends 13 and 23 of the first and second reinforcing portions are arranged in a range of 30% to 40% from the tip FE with respect to the total length (100%) of the shoe.
- the upper end 13 of the first reinforcing portion is disposed in front of the lower end 14 of the first reinforcing portion.
- the upper end 23 of the second reinforcing part is disposed in front of the lower end 24 of the second reinforcing part.
- the lower ends 14 and 24 of the first and second reinforcing portions are adapted to the arch portion inside the foot.
- the upper end 13 of the first reinforcing portion is adapted to be behind the part of the main ball O or the main ball O, and more specifically, is arranged to be behind the seed bone Os.
- the upper end 13 is disposed in front of the Lisfranc joint J.
- the first and second reinforcing portions 1 and 2 are arranged so that the virtual first center line C1 intersects the bone body B11 of the first metatarsal bone B1.
- the first and second reinforcing portions 1 and 2 are more preferably at least of the bone body B11 of the first metatarsal B1 so as to intersect the first metatarsal B1. It extends diagonally forward and upward so as to cover a part, and does not intersect the first proximal phalange B12 in front of the first metatarsal B1 and the inner wedge bone B13 in the rear of the first metatarsal B1. It may be arranged.
- the bone body means a portion between the bone bottom and the bone head, and the thickness generally changes smoothly.
- the bone bottom refers to a portion of each bone that is slightly swollen near the posterior joint, and is also called a proximal head.
- the bone head refers to a portion that is slightly swollen at a portion near each anterior joint in each bone, and is also called a distal bone head.
- the seed bone Os means a bone fragment generated in a tendon passing through the bone in contact with a joint or the like.
- FIG. 7 shows the first and second reinforcing portions 1 and 2 of the second embodiment. This example shows a case where the first and second reinforcing portions 1 and 2 are each divided or separated into two (plural), and are discontinuous at an intermediate bent portion 46 (FIG. 6).
- the first envelope 1L along the rear edge 1E of the first reinforcing portion is bent at a position above the boundary portion 38 and at a position below the upper edge 3E of the upper 3 O1.
- Have The second envelope 2L along the front edge 2E of the second reinforcing portion is bent at a position above the boundary portion 38 and below the upper edge 3E of the upper 3 It has O2.
- the bending point O1 (O2) forms an inflection point in one envelope 1L (2L) in the intermediate portion 45 of the area 4.
- the first reinforcing portion 1 and the second reinforcing portion 2 gradually increase from each other. Is approaching. Further, as the first envelope 1L and the second envelope 2L extend downward from the first and second bending points O1 and O2, respectively, the first reinforcing portion 1 and the second reinforcing portion 2 Gradually approaching each other. In the case of the example in FIG. 6, the first reinforcing portion 1 and the second reinforcing portion 2 gradually approach each other as the first reinforcing portion 1 and the second reinforcing portion 2 extend upward from the bent portion 46. . Further, as the first reinforcing portion 1 and the second reinforcing portion 2 extend downward from the bent portion 46, the first reinforcing portion 1 and the second reinforcing portion 2 gradually approach each other.
- the length 4L of the area 4 in the length direction perpendicular to the direction from the first bending point O1 to the second bending point O2 is the first bending point O1 and the second bending point O2.
- the width of the area 4 between is larger than 4W.
- a virtual second center line C2 is the first and first points from the middle point O3 of a virtual line segment (illustrated by a two-dot chain line) connecting the first bending point O1 and the second bending point O2. 2 Extends to a point O4 included in both upper ends 13 and 23 of the reinforcing portions 1 and 2.
- An angle ⁇ formed by the virtual second center line C2 and the ground contact surface 8F of the sole 8 may be set to about 40 ° to 55 °.
- the reinforcing portions 1 and 2 may be divided or separated into three or more.
- the flexible material 30 can be expanded and contracted in the extending direction of the reinforcing parts 1 and 2 without being restrained by the reinforcing parts 1 and 2 so much.
- the upper ends 13 and 23 of the first and second reinforcing portions 1 and 2 are connected to the engaging portion H with which the shoelace engages, but the engaging portion H as shown in FIG. 9A. May be adjacent to When the upper ends 13 and 23 are connected to the engaging portion H, the positions of the upper ends 13 and 23 may be set to positions between the upper end of the area 4 and the lower end of the eyelet hole.
- the lower ends 14 and 24 of the first and second reinforcing portions 1 and 2 are connected to the upper surface 81 of the sole 8, but are adjacent to the upper surface 81 of the sole as shown in FIG. 9B. Also good.
- FIG. 8B shows the first and second reinforcing portions 1 and 2 of another example.
- the first and second reinforcing portions 1 and 2 may have an angular shape at the bent portion 46.
- the angle ⁇ 2 is larger than the angle ⁇ 1. Therefore, the part where the width 4W of the area 4 is maximum is arranged in the intermediate part 45 closer to the lower end part 44 than the upper end part 43 of the area 4. In such an arrangement, the easily deformable portion of the area 4 is likely to match the region where distortion is likely to occur in FIG. 12B. From this point of view, it is preferable that the portion where the width 4W of the area 4 in FIG. 8B is the largest is arranged below the center or the center of the area 4 extending diagonally forward and upward.
- the angle ⁇ 1 and the angle ⁇ 2 may be the same size.
- a first upper portion 51 above the bent portion 46 and a first lower portion 52 below the bent portion 46 are connected to each other at the bent portion 46.
- a second upper portion 53 above the bent portion 46 and a second lower portion 54 below the bent portion 46 are connected to each other at the bent portion 46.
- angles ⁇ 1 to ⁇ 4 formed by the center lines (shown by alternate long and short dash lines) of the respective portions 51 to 54 and the ground contact surface 8F (FIG. 2) of the sole are respectively the same center lines. It is represented by angles ⁇ 1 to ⁇ 4 formed with a virtual horizontal line L8 parallel to 2).
- the inclinations of the reinforcing portions 1 and 2 are expressed by the angle ⁇ between the reinforcing portions and the ground contact surface 8F (FIG. 2).
- the angle ⁇ which is the inclination of both the reinforcing portions 1 and 2 can be expressed by the following equation (1).
- ⁇ ( ⁇ 1 + ⁇ 2 + ⁇ 3 + ⁇ 4 ) / 4 (1) That is, a value obtained by dividing the sum of the angles ⁇ 1 to ⁇ 4 of the n parts 51 to 54 by the “n” is the value of the angle ⁇ .
- the angle ⁇ i ⁇ 90 ° may be satisfied. That is, each of the angles ⁇ 1 to ⁇ 4 may be smaller than 90 °.
- the angle ⁇ i may be ⁇ i > 10 °. That is, any of the angles ⁇ 1 to ⁇ 4 may be larger than 10 °.
- FIG. 10 shows still another example.
- the upper end 13 of the first reinforcing portion 1 and the upper end 23 of the second reinforcing portion 2 may be connected to separate engaging portions H, respectively.
- the upper end 13 of the first reinforcing portion and the upper end 23 of the second reinforcing portion are separated from each other.
- the lower end 14 of the 1st reinforcement part 1 and the lower end 24 of the 2nd reinforcement part 2 of the 2nd reinforcement part 2 may mutually be spaced apart in the said direction in the boundary part 38.
- the area 4 is surrounded by the first reinforcing portion 1, the second reinforcing portion 2, the upper surface 81 of the sole 8, and the upper edge portion 37 of the upper 3. That is, the area 4 is a portion sandwiched by or surrounded by the envelope 1L of the first reinforcing portion 1 and the envelope 2L of the second reinforcing portion 2.
- the upper ends 13 and 23 of the first and second reinforcing portions 1 and 2 may be connected to only one engaging portion H.
- the first and second reinforcing portions 1 and 2 may be connected to each other in a smooth arc shape at the lower ends 14 and 24 of the first reinforcing portion.
- the bent portion 46 may be formed in a smooth arc shape.
- the upper ends 13 and 23 of the two reinforcing portions are connected to the engaging portion H, while the lower ends 14 and 24 of the two reinforcing portions are separated from each other in the front-rear direction. Also good.
- the first and second reinforcing portions 1 and 2 may be bent in an S shape. Moreover, the 1st reinforcement part 1 may be bent similarly to the 2nd reinforcement part 2 like FIG.10 (d), (g), and (h). In these cases, the 1st reinforcement part 1 and the 2nd reinforcement part 2 become a shape approximated mutually.
- the first reinforcing portion 1 and the second reinforcing portion 2 are substantially connected to each other around the first center line C1 in FIG. It becomes a line-symmetric shape.
- two internal angles ⁇ 3 and ⁇ 4 facing each other at the bent portion 46 are obtuse angles larger than 90 ° and smaller than 180 °.
- the upper ends 13 and 23 of the two reinforcing portions in FIG. 10A may be connected in a V shape with another reinforcing portion 10 in FIG.
- the lower ends 14 and 24 in FIG. 10A may be connected in a V shape by another reinforcing portion 10 in FIG.
- first and second reinforcing portions 1 and 2 may partially extend in parallel with each other.
- a third reinforcing portion 3A may be provided in addition to the first and second reinforcing portions 1 and 2. Also in this case, the first to third reinforcing portions 1, 2 and 3A do not extend along one straight line from the vicinity of the engaging portion H to the upper surface 81 of the sole, and the bent portion 46 is bent. Have.
- first and second reinforcing portions 1 and 2 are covered with the transparent film 34, but such a film 34 is not necessarily required.
- the first and second reinforcing portions 1 and 2 may be attached to the flexible material 30 with an adhesive and a suture.
- first and second reinforcing portions 1 and 2 are formed of, for example, cotton yarn or nylon yarn that is difficult to stretch
- the first and second reinforcing portions 1 and 2 have the same shape as the first and second reinforcing portions 1 and 2 shown in the drawings, and the first flexible A film or cloth having a rigidity smaller than that of the portion 31 may be sewn to the surface of the flexible material 30 with the respective threads.
- the virtual area VA includes a pair of vertical sides S1 extending along the virtual straight line SL and a pair of horizontal sides S2 along another straight line (not shown) orthogonal to the virtual straight line SL.
- This defined square test piece S is used for the rigidity measurement.
- the first end portions 11 and 12 above the reinforcing portions 1 and 2 and the second end portions 21 and 22 below are grasped by a tensile tester (gripping portion) 100 and a tensile load is applied in the extending direction of the virtual straight line SL. To load.
- the virtual straight line SL coincides with the first center line C1 in FIG. Moreover, the test piece S (FIG. 13C) was cut out from the upper of FIG.
- FIG. 13B shows the measurement results.
- the tensile stiffness of the test piece S increases when the elongation of the test piece S exceeds 3% to 4%.
- Post is a shoe having an upper as shown in FIG. 1, and Pre is a shoe before improvement.
- the sole arranged under the upper may have only a so-called outsole.
- the to-be-reinforced area may be provided on the inner side and the outer side.
- strengthening apparatus and a stepper part do not need to be provided.
- the insertion hole through which the shoelace passes may be a loop or the like instead of the eyelet.
- a belt may be employed as the tightening member instead of the shoe race or in addition to the shoe race.
- the mesh-like cloth contained in the flexible material may not have anisotropy, and may have an anisotropy that is easier to extend in the vertical direction than in the front-rear direction. Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.
- the present invention can be applied to shoes for various uses such as walking in addition to running shoes.
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Abstract
Description
前記アッパー3の一部を構成し足の内側面を覆う柔軟材30と、
前記柔軟材30よりも伸び難く前記柔軟材の表面3Fに付着された第1および第2補強部1,2と、を備え、
前記柔軟材30は前記第1および第2補強部1,2で補強された被補強エリア4を包含し、
前記第1補強部1は前記アッパー3の前記ソール8との境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第2補強部2は前記第1補強部1の後方Rに配置され、前記アッパー3の前記ソール8との前記境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記エリア4は前記第1補強部の後縁1Eに沿った第1包絡線1Lと、前記第2補強部の前縁2Eに沿った第2包絡線2Lで定義され、
前記エリア4を前記第1包絡線で前縁4Fが定義される第1部41と前記第2包絡線で後縁4Rが定義される第2部42とに分ける仮想の第1中心ラインC1に沿って前記エリア4が延び、
前記エリア4は上端部43と下端部44と前記上端部43と下端部44との間の中間部45とを包含し、
前記第1中心ラインC1の延びる方向D1に直交する方向D2の前記エリアの幅4Wが、前記中間部45において最大で、かつ、前記中間部45から前記上端部43に向かって前記エリアの幅4Wが徐々に小さく、かつ、前記中間部45から前記下端部44に向かって前記エリアの幅4Wが徐々に小さく、
前記エリア4の前記上端部43が前記下端部44よりも前方に配置されている。
したがって、前記エリア3Aの中間部45において第1中心ラインC1に直交する方向D2に伸び易い。それ故、アッパーのフィット性能が維持ないし向上する可能性がある。
前記アッパー3の一部を構成し足の内側面を覆うように適合された柔軟材30と、
前記柔軟材30よりも伸び難く前記柔軟材の表面3Fに付着された第1および第2補強部1,2と、を備え、
前記第1補強部1は前記アッパー3の前記ソール8との境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第2補強部2は前記第1補強部1の後方Rに配置され、前記アッパー3の前記ソール8との前記境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第1補強部の後縁1Eに沿った第1包絡線1Lは前記境界部38よりも上方において、かつ、前記アッパー3の上縁3Eよりも下方の位置において屈曲した第1屈曲点O1を有し、
前記第2補強部の前縁2Eに沿った第2包絡線2Lは前記境界部38よりも上方において、かつ、前記アッパー3の前記上縁3Eよりも下方の位置において屈曲した第2屈曲点O2を有し、
前記第1包絡線1Lおよび前記第2包絡線2Lが、それぞれ、前記第1および第2屈曲点O1,O2から上方に延びるに従い前記第1補強部1と前記第2補強部2とが互いに徐々に接近しており、
前記第1包絡線1Lおよび前記第2包絡線2Lが、それぞれ、前記第1および第2屈曲点O1,O2から下方に延びるに従い前記第1補強部1と前記第2補強部2とが互いに徐々に接近しており、
前記第1および第2補強部の各下端14,24が足の内側のアーチの部位に適合され、
前記第1補強部の上端13が母趾球Oの部位または母趾球Oよりも後方となるように適合され、
前記第1補強部の前記上端13が前記第1補強部の前記下端14よりも前方Fに配置され、および/または前記第2補強部2の上端23が前記第2補強部の前記下端24よりも前方Fに配置されている。
前記アッパー3の一部を構成し足の内側面を覆うように適合された柔軟材30と、
前記柔軟材30よりも伸び難く前記柔軟材の表面3Fに付着された第1および第2補強部1,2と、を備え、
前記第1補強部1は前記アッパー3と前記ソール8との境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第2補強部2は前記第1補強部1の後方Rに配置され、前記アッパー3と前記ソール8との前記境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第1補強部の後縁1Eに沿った第1包絡線1Lは前記境界部38よりも上方において、かつ、前記アッパー3の上縁3Eよりも下方の位置において屈曲した第1屈曲点O1を有し、
前記第2補強部の前縁2Eに沿った第2包絡線2Lは前記境界部38よりも上方において、かつ、前記アッパー3の前記上縁3Eよりも下方の位置において屈曲した第2屈曲点O2を有し、
前記第1包絡線1Lおよび前記第2包絡線2Lが、それぞれ、前記第1および第2屈曲点O1,O2から上方に延びるに従い前記第1補強部1と前記第2補強部2とが互いに徐々に接近しており、
前記第1包絡線1Lおよび前記第2包絡線2Lが、それぞれ、前記第1および第2屈曲点O1,O2から下方に延びるに従い前記第1補強部1と前記第2補強部2とが互いに徐々に接近しており、
前記第1および第2補強部の各下端14,24が前記靴の前後方向Xの先端FEから前記靴の全長の40%~60%の範囲に配置され、
前記第1および第2補強部の各上端13、23が前記先端FEから前記靴の全長の25%~45%の範囲に配置され、
前記第1補強部の上端13が前記第1補強部の下端14よりも前方Fに配置され、かつ、前記第2補強部の上端23が前記第2補強部の下端24よりも前方Fに配置されている。
前記アッパー3の一部を構成し前足の内側面を覆う柔軟材30と、前記柔軟材30よりも伸び難く前記柔軟材30の表面3Fに付着された補強部1,2とを備え、
前記補強部1,2は、上方の第1端部11,12から下方の第2端部21,22に向かって斜め後方の下方に延び、
前記第1端部11,12と第2端部21,22とを通る仮想の直線SLと前記ソールの接地面8Fとがなす角αが30°~60°に設定され、
前記柔軟材30および前記補強部を含む仮想エリアVAの剛性が下記の(a)~(c)の条件を満足する
(a)前記仮想エリアVAは前記仮想の直線SLに沿って延びる一対の縦辺S1と前記仮想の直線に直交する別の直線に沿った一対の横辺S2とで定義され、この定義された方形の試験片Sを用い、
(b)前記第1端部11,12および前記第2端部21,22を引張試験機100で把んで前記仮想の直線SLの延びる方向に引張荷重を負荷し、
(c)前記試験片Sの伸びが3%~6%の任意の値を超えた際に前記試験片Sの引張剛性が増大する。
一方、メッシュ状の生地が前後方向よりも上下方向に伸び難い場合、同生地が補強部1,2と協働して、アッパーを上下方向に伸び難くし、過度のプロネーションが抑制され易いだろう。
前記第1補強部の前記上端13が前記第1補強部の前記下端14よりも前方に配置され、および/または、前記第2補強部の上端23が前記第2補強部の前記下端24よりも前方に配置されている。
前記第1および第2補強部の各上端13、23が前記先端FEから前記全長の25%~45%の範囲に配置され、
前記第1補強部の上端13が前記第1補強部の下端14よりも前方に配置され、かつ、前記第2補強部の上端23が前記第2補強部の下端24よりも前方に配置されている。
前記第1および第2補強部の各上端13、23が前記先端FEから前記全長の30%~40%の範囲に配置され、
前記第1補強部の上端13が前記第1補強部の下端14よりも前方に配置され、かつ、前記第2補強部の上端23が前記第2補強部の下端24よりも前方に配置されている。
かかる範囲に各補強部の上端および下端が配置されていることで、前記第1および第2中心ラインC1,C2や前記被補強エリア4の中間部45が第1中足骨B1の骨体B11に適合するように配置され易いだろう。したがって、過度のプロネーションの抑制機能が更に発揮され易いだろう。
前記第1および第2補強部2の下端14,24において前記第1補強部1と前記第2補強部1,2とがなす角α2(内角)が鋭角に形成され、
前記第1補強部1が前記第1屈曲点O1においてなす角α3(内角)が鈍角に形成され、
前記第2補強部2が前記第2屈曲点O2においてなす角α4(内角)が鈍角に形成されている。
以下、本発明の実施例1が図1~図6を参照して説明される。
以下の説明では、右足用の靴が例示される。
図1に示す靴は、たとえば、競技用やランニング用の靴で、ソール8の上にはアッパー3が固定されている。前記アッパー3は柔軟材30、第1および第2補強部1,2や図示しないシューレース(締付部材)を備えている。なお、本発明の実施例の説明においては、図面を見易くするために、シューレースの図示は省略している。
ソール8はゴム製のアウトソール83の上にEVAのような樹脂製の発泡体を包むミッドソール80を備えていてもよい。前記アウトソール83は前後に分離されていてもよい。なお、踏まず部にはミッドソール80の下面に付着し、ミッドソール80を強化する周知の強化装置89が設けられていてもよい。
前記第1および第2補強部1,2は樹脂素材や綿糸などの天然素材で構成されてもよい。樹脂素材は熱可塑性の樹脂成分と任意の適宜の他の成分とを含む素材であってもよい。前記熱可塑性の樹脂成分としては、例えば、熱可塑性エラストマーおよび熱可塑性樹脂が挙げられる。
すなわち、柔軟材30の第1柔軟部31は上下方向Yよりも前後方向Xに伸び易い異方性を有している。
図5の柔軟材30に溶着またはプリントされた補強部1,2またはフィルム34は、それらの樹脂組織の一部が柔軟材30の繊維の微細な凹部や隙間に入り込むだろう。そのため、柔軟材30は補強部1,2と一体となって補強部1,2の剛性が大きくなり易いだろう。
本例の場合、第1および第2補強部1,2の上端13,23には前記係合部Hが連なっている。
本例の場合、前記第1補強部1の上端13と前記第2補強部の上端23とは互いに一部において重なっており、前記前後方向Xに互いに連なっている。また、前記第1補強部1の下端14と前記第2補強部2の下端24とは互いに一部において重なっており、前記前後方向Xに互いに連なっている。
前記エリア4は前記第1補強部1の後縁1Eに沿った第1包絡線1Lと、前記第2補強部2の前縁2Eに沿った第2包絡線2Lで定義される。本例の場合、第1および第2補強部1,2は切れ目なく、かつ、滑らかに連なっており、前記第1補強部1の後縁1Eおよび第2補強部2の前縁2Eは、各々、前記第1包絡線1Lおよび第2包絡線2Lに一致する。また、本例の場合、前記エリア4は第1および第2補強部1,2により周囲が完全に囲まれている。
なお、本例の場合、前記第1中心ラインC1を延長したラインが側面視において前記強化装置89や踏まず部を横断するように、前記第1中心ラインC1が配置されてもよい。
枠状の補強部1,2は図6のようにひし形である必要はなく、図8Bに示した矩形状、図10(b)に示した非矩形状であってもよい。ここで、「枠状」とは図10(b)、図8B~図9Bおよび図6のように両補強部1,2が完全なループを形成してエリア4を囲んでいる場合と、図7や図8Aのようにエリア4を囲み、かつ、連続的であるがループが不完全である場合を含む意味である。
この例の場合、前記第1および第2補強部の上端13,23において前記第1補強部1と前記第2補強部1,2とがなす角α1は鋭角に形成されている。前記第1および第2補強部の下端14,24において前記第1補強部1と前記第2補強部1,2とがなす角α2は鋭角に形成されている。これらの角α1,α2は各補強部1,2の中心線(二点鎖線で図示)のなす角や、後縁1Eと前縁2を形成する2本の直線がなす角で決定されてもよい。
側面視において、前記仮想の第1中心ラインC1は第1中足骨B1の骨体B11に交差するように、前記第1および第2補強部1,2が配置されている。更に、本例のように、側面視において、第1および第2補強部1,2が第1中足骨B1に交差するように、より好ましくは第1中足骨B1の骨体B11の少なくとも一部を覆うように、斜め前方の上方に延び、かつ、第1中足骨B1の前方の第1基節骨B12や第1中足骨B1の後方の内側楔状骨B13と交差しないように配置されていてもよい。
図6の例の場合、前記第1補強部1および第2補強部2が屈曲部46から上方に延びるに従い前記第1補強部1と前記第2補強部2とは互いに徐々に接近している。また、前記第1補強部1および第2補強部2が屈曲部46から下方に延びるに従い前記第1補強部1と前記第2補強部2とは互いに徐々に接近している。
図4の例において、前記第1および第2補強部1,2の各下端14,24は前記ソール8の上面81に連なっているが、図9Bのようにソールの上面81に隣接していてもよい。
図8Bのように、第1および第2補強部1,2は屈曲部46において角張った形状であってもよい。
図8Bにおいて、角α1よりも角α2は大きい。そのため、エリア4の幅4Wが最大となる部位は、エリア4の上端部43よりも下端部44に近い中間部45に配置される。かかる配置において、エリア4の変形し易い部分は図12Bのひずみの生じ易い領域に合致し易い。
かかる観点から図8Bのエリア4の幅4Wが最大となる部位は、斜め前方の上方に延びるエリア4の中央または中央よりも下方に配置されるのが好ましい。
なお、図6に示すように、角α1と角α2は互いに同じ大きさであってもよい。
前述の実施例において、両補強部1,2の傾きは、両補強部が接地面8F(図2)となす角αで表現された。前記両補強部1,2の傾きである角αは、下記の(1)式で表すことができる。
α=(Δ1+Δ2+Δ3+Δ4)/4 ・・・(1)
すなわち、n個の各部51~54の前記角Δ1~Δ4の総和を前記「n」で除した値が角αの値となる。前記角Δi<90°であってもよい。つまり、各角Δ1~Δ4はいずれも90°よりも小さくてもよい。また前記角ΔiはΔi>10°であってもよい。つまり、角Δ1~Δ4はいずれも10°よりも大きくてもよい。
図10(a)のように、第1補強部1の上端13と第2補強部2の上端23とは、各々、別々の係合部Hに連なっていてもよい。この場合、前記第1補強部の上端13と第2補強部の上端23とは離間している。また、第1補強部1の下端14と第2補強部2の第2補強部2の下端24とが境界部38において互いに前記方向に離間していてもよい。
また、屈曲部46は滑らかな円弧状に形成されていてもよい。
アッパーの下に配置されるソールは、いわゆるアウトソールのみを有していてもよい。被補強エリアは内側部および外側部に設けられてもよい。また、強化装置や踏まず部は設けられていなくてもよい。
シューレースが通る挿通孔は鳩目ではなく、ループ等であってもよい。
シューレースに代え、あるいは、シューレースに加えて、締付部材としてベルトが採用されてもよい。
柔軟材に含まれるメッシュ状の生地は異方性を有していなくてもよく、また、前後方向よりも上下方向に伸び易い異方性を有していてもよい。
したがって、そのような変更および修正は請求の範囲から定まる本発明の範囲内のものと解釈される。
11,12:第1端部 1E:第1補強部の後縁 1L:第1包絡線
13:第1補強部の上端 14:第1補強部の下端 21,22:第2端部 23:第2補強部の上端 24:第2補強部の下端 2E:第2補強部の前縁
2L:第2包絡線
3:アッパー 3E:上縁 3H:貫通孔 30:柔軟材(Flexible member) 31~33:第1~第3柔軟部 34:フィルム 35:内装材 36:裏打材
37:上縁部 38:境界部 39:舌片 3F:柔軟材の表面
4:被補強エリア 41:第1部 42:第2部 43:上端部 44:下端部
45:中間部 46:屈曲部 4L:エリアの長さ 4W:エリアの幅
4F:第1包絡線で定義される前縁 4R:第2包絡線で定義される後縁
51:第1上部 52:第1下部 53:第2上部 54:第2下部
7:履き口
8:ソール 80:ミッドソール 81:ソールの上面 82:インソール
83:アウトソール 89:強化装置 8F:接地面
100:引張試験機
VA:仮想エリア
B1:第1中足骨 B11:骨体 B12:第1基節骨 B13:内側楔状骨
C1:第1中心ライン C2:第2中心ライン
D1:中心ラインが延びる方向 D2:直交する方向
F:前方 FE:先端 H:係合部 L:仮想の水平線
O:母趾球
O1:第1屈曲点 O2:第2屈曲点 O3,O4:中点
R:後方
S:試験片 SL:仮想の直線 S1:縦辺 S2:横辺
Y:上下方向 X:前後方向
α,α1,α2,α3,α4,Δi:角
Claims (28)
- アッパー3およびソール8を有する靴であって、前記靴は、
前記アッパー3の一部を構成し足の内側面を覆うように適合された柔軟材30と、
前記柔軟材30よりも伸び難く前記柔軟材の表面3Fに付着された第1および第2補強部1,2と、を備え、
前記柔軟材30は前記第1および第2補強部1,2で補強された被補強エリア4を包含し、
前記第1補強部1は前記アッパー3の前記ソール8との境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第2補強部2は前記第1補強部1の後方Rに配置され、前記アッパー3の前記ソール8との前記境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記エリア4は前記第1補強部の後縁1Eに沿った第1包絡線1Lと、前記第2補強部の前縁2Eに沿った第2包絡線2Lで定義され、
前記エリア4を前記第1包絡線で前縁4Fが定義される第1部41と前記第2包絡線で後縁4Rが定義される第2部42とに分ける仮想の第1中心ラインC1に沿って前記エリア4が延び、
前記エリア4は上端部43と下端部44と前記上端部43と下端部44との間の中間部45とを包含し、
前記第1中心ラインC1の延びる方向D1に直交する方向D2の前記エリアの幅4Wが、前記中間部45において最大で、かつ、前記中間部45から前記上端部43に向かって前記エリアの幅4Wが徐々に小さく、かつ、前記中間部45から前記下端部44に向かって前記エリアの幅4Wが徐々に小さく、
前記エリア4の前記上端部43が前記下端部44よりも前方Fに配置されている。 - 請求項1の靴において、
前記エリア4において前記柔軟材の少なくとも表面材は上下方向Yおよび靴の前後方向Xに伸縮可能なメッシュ状の生地を含む。 - 請求項2の靴において、
前記メッシュ状の生地は前記上下方向Yよりも前記前後方向Xに伸縮し易い。 - 請求項1,2もしくは3の靴において、
前記仮想の第1中心ラインC1が延びる方向D1の前記エリア4の長さ4Lが、前記エリア4の最大の前記幅4Wよりも大きい。 - 請求項1~4のいずれか1項の靴において、
前記第1中心ラインC1と前記ソールの接地面8Fとのなす角αが30°~60°に設定されている。 - 請求項1~5のいずれか1項の靴において、
前記第1および第2補強部1,2の各上端13,23はシューレースが係合する係合部Hに隣接ないし連なり、前記第1および第2補強部1,2の各下端14,24は前記ソール8の上面81に隣接ないし連なる。 - 請求項1~6のいずれか1項の靴において、
側面視において、前記仮想の第1中心ラインC1が第1中足骨B1の骨体B11に交差するように適合された状態で、前記第1および第2補強部1,2が配置されている。 - 請求項1~7のいずれか1項の靴において、
前記第1および第2補強部の各下端14,24が足の内側のアーチの部位に適合され、前記第1補強部の上端13が母趾球Oの部位または母趾球Oよりも後方Rとなるように適合され、
前記第1補強部の前記上端13が前記第1補強部の前記下端14よりも前方Fに配置され、および/または前記第2補強部の上端23が前記第2補強部の前記下端24よりも前方Fに配置されている。 - 請求項1~8のいずれか1項の靴において、
前記第1および第2補強部の各下端14,24が前記靴の前後方向Xの先端FEから前記靴の全長の40%~60%の範囲に配置され、
前記第1および第2補強部の各上端13、23が前記先端FEから前記靴の全長の25%~45%の範囲に配置され、
前記第1補強部の上端13が前記第1補強部の下端14よりも前方Fに配置され、かつ、前記第2補強部の上端23が前記第2補強部の下端24よりも前方Fに配置されている。 - 請求項1~8のいずれか1項の靴において、
前記第1および第2補強部の各下端14,24が前記靴の前後方向Xの先端FEから前記靴の全長の45%~55%の範囲に配置され、
前記第1および第2補強部の各上端13、23が前記先端FEから前記靴の全長の30%~40%の範囲に配置され、
前記第1補強部の上端13が前記第1補強部の下端14よりも前方Fに配置され、かつ、前記第2補強部の上端23が前記第2補強部の下端24よりも前方Fに配置されている。 - アッパー3およびソール8を有する靴であって、前記靴は、
前記アッパー3の一部を構成し足の内側面を覆うように適合された柔軟材30と、
前記柔軟材30よりも伸び難く前記柔軟材の表面3Fに付着された第1および第2補強部1,2と、を備え、
前記第1補強部1は前記アッパー3の前記ソール8との境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第2補強部2は前記第1補強部1の後方Rに配置され、前記アッパー3の前記ソール8との前記境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第1補強部の後縁1Eに沿った第1包絡線1Lは前記境界部38よりも上方において、かつ、前記アッパー3の上縁3Eよりも下方の位置において屈曲した第1屈曲点O1を有し、
前記第2補強部の前縁2Eに沿った第2包絡線2Lは前記境界部38よりも上方において、かつ、前記アッパー3の前記上縁3Eよりも下方の位置において屈曲した第2屈曲点O2を有し、
前記第1包絡線1Lおよび前記第2包絡線2Lが、それぞれ、前記第1および第2屈曲点O1,O2から上方に延びるに従い前記第1補強部1と前記第2補強部2とが互いに徐々に接近しており、
前記第1包絡線1Lおよび前記第2包絡線2Lが、それぞれ、前記第1および第2屈曲点O1,O2から下方に延びるに従い前記第1補強部1と前記第2補強部2とが互いに徐々に接近しており、
前記第1および第2補強部の各下端14,24が足の内側のアーチの部位に適合され、
前記第1補強部の上端13が母趾球Oの部位または母趾球Oよりも後方となるように適合され、
前記第1補強部の前記上端13が前記第1補強部の前記下端14よりも前方Fに配置され、および/または前記第2補強部2の上端23が前記第2補強部の前記下端24よりも前方Fに配置されている。 - 請求項11の靴において、
前記柔軟材30が前記第1および第2包絡線1L,2Lで定義された被補強エリア4において前記柔軟材の少なくとも表面材は上下方向Yおよび靴の前後方向Xに伸縮可能なメッシュ状の生地を含む。 - 請求項12の靴において、
前記メッシュ状の生地は前記上下方向Yよりも前記前後方向Xに伸縮し易い。 - 請求項11,12もしくは13の靴において、前記柔軟材30は前記第1および第2包絡線1L,2Lで定義された被補強エリア4を包含し、前記第1屈曲点O1から前記第2屈曲点O2に向かう方向に直交する長さ方向の前記エリア4の長さ4Lは前記第1屈曲点O1と前記第2屈曲点O2との間の前記エリア4の幅4Wよりも大きい。
- 請求項11~14のいずれか1項の靴において、
前記第1屈曲点O1と前記第2屈曲点O2とを結んだ仮想の線分の中点O3から前記第1および第2補強部1,2の両上端13,23に含まれる点O4または両上端13,23の間の点O4まで延びた仮想の第2中心ラインC2と前記ソール8の接地面8Fとがなす角αが30°~60°に設定されている。 - 請求項15の靴において、
側面視において、前記仮想の第2中心ラインC2が第1中足骨B1の骨体B11に交差するように適合された状態で、前記第1および第2補強部1,2が配置されている。 - 請求項11~16のいずれか1項の靴において、
前記第1および第2補強部1,2の各上端13,23はシューレースが係合する係合部Hに隣接ないし連なり、前記第1および第2補強部1,2の各下端14,24は前記ソール8の上面81に隣接ないし連なる。 - 請求項11~17のいずれか1項の靴において、
前記第1および第2補強部の各下端14,24が前記靴の前後方向Xの先端FEから前記靴の全長の40%~60%の範囲に配置され、
前記第1および第2補強部の各上端13、23が前記先端FEから前記靴の全長の25%~45%の範囲に配置され、
前記第1補強部の上端13が前記第1補強部の下端14よりも前方Fに配置され、かつ、前記第2補強部の上端23が前記第2補強部の下端24よりも前方Fに配置されている。 - 請求項11~17のいずれか1項の靴において、
前記第1および第2補強部の各下端14,24が靴の前後方向Xの先端FEから前記靴の全長の45%~55%の範囲に配置され、
前記第1および第2補強部の各上端13、23が前記先端FEから前記靴の全長の30%~40%の範囲に配置され、
前記第1補強部の上端13が前記第1補強部の下端14よりも前方Fに配置され、かつ、前記第2補強部の上端23が前記第2補強部の下端24よりも前方Fに配置されている。 - 請求項11~19のいずれか1項の靴において、
前記第1および第2補強部2の上端13,23において前記第1補強部1と前記第2補強部1,2とがなす角α1が鋭角に形成され、
前記第1および第2補強部2の下端14,24において前記第1補強部1と前記第2補強部1,2とがなす角α2が鋭角に形成され、
前記第1補強部1が前記第1屈曲点O1においてなす角α3が鈍角に形成され、
前記第2補強部2が前記第2屈曲点O2においてなす角α4が鈍角に形成されている。 - アッパー3およびソール8を有する靴であって、前記靴は、
前記アッパー3の一部を構成し足の内側面を覆うように適合された柔軟材30と、
前記柔軟材30よりも伸び難く前記柔軟材の表面3Fに付着された第1および第2補強部1,2と、を備え、
前記第1補強部1は前記アッパー3と前記ソール8との境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第2補強部2は前記第1補強部1の後方Rに配置され、前記アッパー3と前記ソール8との前記境界部38から上方に向かって連続的または断続的に帯状または線状に延び、
前記第1補強部の後縁1Eに沿った第1包絡線1Lは前記境界部38よりも上方において、かつ、前記アッパー3の上縁3Eよりも下方の位置において屈曲した第1屈曲点O1を有し、
前記第2補強部の前縁2Eに沿った第2包絡線2Lは前記境界部38よりも上方において、かつ、前記アッパー3の前記上縁3Eよりも下方の位置において屈曲した第2屈曲点O2を有し、
前記第1包絡線1Lおよび前記第2包絡線2Lが、それぞれ、前記第1および第2屈曲点O1,O2から上方に延びるに従い前記第1補強部1と前記第2補強部2とが互いに徐々に接近しており、
前記第1包絡線1Lおよび前記第2包絡線2Lが、それぞれ、前記第1および第2屈曲点O1,O2から下方に延びるに従い前記第1補強部1と前記第2補強部2とが互いに徐々に接近しており、
前記第1および第2補強部の各下端14,24が前記靴の前後方向Xの先端FEから前記靴の全長の40%~60%の範囲に配置され、
前記第1および第2補強部の各上端13、23が前記先端FEから前記靴の全長の25%~45%の範囲に配置され、
前記第1補強部の上端13が前記第1補強部の下端14よりも前方Fに配置され、かつ、前記第2補強部の上端23が前記第2補強部の下端24よりも前方Fに配置されている。 - 請求項21の靴において、
前記第1および第2補強部の各下端14,24が前記靴の前記先端FEから前記靴の全長の45%~55%の範囲に配置され、
前記第1および第2補強部の各上端13、23が前記先端FEから前記靴の全長の30%~40%の範囲に配置され、
前記第1補強部の上端13が前記第1補強部の下端14よりも前方Fに配置され、かつ、前記第2補強部の上端23が前記第2補強部の下端24よりも前方Fに配置されている。 - 請求項21もしくは22の靴において、
前記柔軟材30は前記第1および第2包絡線1L,2Lで定義された被補強エリア4を包含し、
前記被補強エリア4において前記柔軟材の前記表面3Fは上下方向Yおよび前記前後方向Xに伸縮自在なメッシュ状の生地で形成されている。 - 請求項23の靴において、
前記メッシュ状の生地は前記上下方向Yよりも前記前後方向Xに伸縮し易い。 - 請求項21~24のいずれか1項の靴において、前記柔軟材30は前記第1および第2包絡線1L,2Lで定義された被補強エリア4を包含し、前記第1屈曲点O1から前記第2屈曲点O2に向かう方向に直交する長さ方向の前記エリア4の長さ4Lは前記第1屈曲点O1と前記第2屈曲点O2との間の前記エリア4の幅4Wよりも大きい。
- 請求項21~25のいずれか1項の靴において、
前記第1屈曲点O1と前記第2屈曲点O2を結んだ仮想の線分の中点O3から前記第1および第2補強部の両上端13,23に含まれる点O4または両上端13,23の間の点O4まで延びた仮想の中心ラインC2と前記ソール8の接地面8Fとがなす角αが30°~60°に設定されている。 - 請求項21~26のいずれか1項の靴において、
前記第1および第2補強部1,2の各上端13,23はシューレースが係合する係合部Hに隣接ないし連なり、前記第1および第2補強部1,2の各下端14,24は前記ソール8の上面81に隣接ないし連なる。 - 足を包むアッパー3を有する靴であって、
前記アッパー3の一部を構成し前足の内側面を覆うように適合された柔軟材30と、前記柔軟材30よりも伸び難く前記柔軟材30の表面3Fに付着された補強部1,2とを備え、
前記補強部1,2は、上方の第1端部11,12から下方の第2端部21,22に向かって斜め後方の下方に延び、
前記第1端部11,12と第2端部21,22とを通る仮想の直線SLと前記ソールの接地面8Fとがなす角αが30°~60°に設定され、
前記柔軟材30および前記補強部を含む仮想エリアVAの剛性が下記の(a)~(c)の条件を満足する
(a)前記仮想エリアVAは前記仮想の直線SLに沿って延びる一対の縦辺S1と前記仮想の直線に直交する別の直線に沿った一対の横辺S2とで定義され、この定義された方形の試験片Sを用い、
(b)前記第1端部11,12および前記第2端部21,22を引張試験機100で把んで前記仮想の直線SLの延びる方向に引張荷重を負荷し、
(c)前記試験片Sの伸びが3%~6%の任意の値を超えた際に前記試験片Sの引張剛性が増大する。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/078600 WO2017061002A1 (ja) | 2015-10-08 | 2015-10-08 | アッパーおよびソールを有する靴 |
| JP2016509180A JP5986700B1 (ja) | 2015-10-08 | 2015-10-08 | アッパーおよびソールを有する靴 |
| EP15871324.8A EP3170419B1 (en) | 2015-10-08 | 2015-10-08 | Shoe having upper and sole |
| US15/108,265 US10212989B2 (en) | 2015-10-08 | 2015-10-08 | Shoe having upper and sole |
| AU2015367820A AU2015367820B1 (en) | 2015-10-08 | 2015-10-08 | Shoe having upper and sole |
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/JP2015/078600 WO2017061002A1 (ja) | 2015-10-08 | 2015-10-08 | アッパーおよびソールを有する靴 |
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| Country | Link |
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| US (1) | US10212989B2 (ja) |
| EP (1) | EP3170419B1 (ja) |
| JP (1) | JP5986700B1 (ja) |
| AU (1) | AU2015367820B1 (ja) |
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| JPWO2022157875A1 (ja) * | 2021-01-21 | 2022-07-28 |
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| JP5756893B2 (ja) | 2013-05-01 | 2015-07-29 | 株式会社アシックス | 靴底用部材 |
| WO2014192145A1 (ja) | 2013-05-31 | 2014-12-04 | 株式会社アシックス | 靴底用部材 |
| US10980316B2 (en) * | 2013-08-07 | 2021-04-20 | Asics Corporation | Shoes |
| JP6085066B2 (ja) * | 2014-03-31 | 2017-02-22 | 株式会社アシックス | 靴のアッパー |
-
2015
- 2015-10-08 AU AU2015367820A patent/AU2015367820B1/en not_active Ceased
- 2015-10-08 US US15/108,265 patent/US10212989B2/en active Active
- 2015-10-08 WO PCT/JP2015/078600 patent/WO2017061002A1/ja not_active Ceased
- 2015-10-08 JP JP2016509180A patent/JP5986700B1/ja active Active
- 2015-10-08 EP EP15871324.8A patent/EP3170419B1/en active Active
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| US6199302B1 (en) | 1998-09-08 | 2001-03-13 | Asics Corporation | Athletic shoe |
| JP2008543452A (ja) * | 2005-06-20 | 2008-12-04 | ナイキ インコーポレーティッド | マトリックス層をもつアッパーを有する履物製品 |
| US8388791B2 (en) | 2009-04-07 | 2013-03-05 | Nike, Inc. | Method for molding tensile strand elements |
| JP4957978B2 (ja) * | 2009-07-06 | 2012-06-20 | 株式会社アシックス | 紐締めフィッティング構造を備えた靴 |
| US8266827B2 (en) | 2009-08-24 | 2012-09-18 | Nike, Inc. | Article of footwear incorporating tensile strands and securing strands |
| JP5103639B2 (ja) * | 2010-04-16 | 2012-12-19 | 株式会社アシックス | 靴のアッパーの前足部の構造 |
Non-Patent Citations (1)
| Title |
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| See also references of EP3170419A4 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2022157875A1 (ja) * | 2021-01-21 | 2022-07-28 | ||
| WO2022157875A1 (ja) * | 2021-01-21 | 2022-07-28 | 株式会社アシックス | アッパー及びこれを備えた靴 |
| JP2025036756A (ja) * | 2021-01-21 | 2025-03-14 | 株式会社アシックス | アッパー及びこれを備えた靴 |
| US12440000B2 (en) | 2021-01-21 | 2025-10-14 | Asics Corporation | Upper and shoe including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3170419A1 (en) | 2017-05-24 |
| US20170238657A1 (en) | 2017-08-24 |
| US10212989B2 (en) | 2019-02-26 |
| JPWO2017061002A1 (ja) | 2017-10-05 |
| EP3170419A4 (en) | 2017-11-01 |
| EP3170419B1 (en) | 2019-05-15 |
| AU2015367820B1 (en) | 2016-11-17 |
| JP5986700B1 (ja) | 2016-09-06 |
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