EP1894484B1 - Sohlenstrukturkörper für schuhe - Google Patents

Sohlenstrukturkörper für schuhe Download PDF

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Publication number
EP1894484B1
EP1894484B1 EP06747151.6A EP06747151A EP1894484B1 EP 1894484 B1 EP1894484 B1 EP 1894484B1 EP 06747151 A EP06747151 A EP 06747151A EP 1894484 B1 EP1894484 B1 EP 1894484B1
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EP
European Patent Office
Prior art keywords
sole structure
lower plate
upper plate
convex portions
plate
Prior art date
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.)
Active
Application number
EP06747151.6A
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English (en)
French (fr)
Other versions
EP1894484A4 (de
EP1894484A1 (de
Inventor
Kenjiro Kita
Takao Oda
Akihiro Miyauchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mizuno Corp
Original Assignee
Mizuno Corp
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
Priority claimed from PCT/JP2005/021751 external-priority patent/WO2006129392A1/ja
Application filed by Mizuno Corp filed Critical Mizuno Corp
Publication of EP1894484A1 publication Critical patent/EP1894484A1/de
Publication of EP1894484A4 publication Critical patent/EP1894484A4/de
Application granted granted Critical
Publication of EP1894484B1 publication Critical patent/EP1894484B1/de
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Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/10—Metal
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • 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
    • A43B13/141—Soles; Sole-and-heel integral units characterised by the constructive form with a part of the sole being flexible, e.g. permitting articulation or torsion
    • 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
    • A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
    • A43B13/145—Convex portions, e.g. with a bump or projection, e.g. 'Masai' type shoes
    • 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
    • A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
    • A43B13/146—Concave end portions, e.g. with a cavity or cut-out portion
    • 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
    • A43B13/16—Pieced soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A43B13/183—Leaf springs
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00—Non-skid devices or attachments
    • A43C15/16—Studs or cleats for football or like boots
    • A43C15/161—Studs or cleats for football or like boots characterised by the attachment to the sole

Definitions

  • the present invention relates generally to a sole structure for a shoe, and more particularly, to an improvement in the sole structure for enhancing cushioning and bending properties of the heel portion of the sole.
  • Japanese patent application laying-open publication No. 2003-339405 shows a sole structure for a shoe to secure cushioning properties of the heel portion.
  • an upper plate and a lower plate are disposed on the upper side and the lower side, respectively, of a wavy plate that is disposed at the heel region.
  • a plurality of voids formed between the wavy plate and the upper and lower plates function as cushion holes to secure cushioning properties of the heel portion.
  • Japanese patent application laying-open publication No. 2003-9906 shows a sole structure for a shoe having an upper wavy sheet and a lower wavy sheet that are oppositely disposed via a void between an upper midsole and a lower midsole in the sole heel portion.
  • the void between the upper and lower wavy sheet functions as a cushion hole to secure the cushioning properties of the heel portion.
  • WO 2006/070549 which was published after the filing date of this patent application, discusses a sole structure body for a shoe with improved bendability and cushioning characteristics of the sole forefoot portion.
  • WO 00/74515 discusses a shoe having a spring-operated damping mechanism.
  • An object of the present invention is to provide a sole structure for a shoe that can improve bending properties as well as cushioning properties of the sole heel portion.
  • a sole structure for a shoe includes an upper plate disposed on the upper side of the heel region of the sole structure, a wavy lower plate disposed on the lower side of the heel region and having at least two convex portions that protrude downwardly and that form a void relative to the upper plate, and a plurality of outsole portions separated in the longitudinal direction and fitted to the lower surface of the convex portions of the lower plate, wherein the longitudinally adjacent outsole portions are coupled to each other through a connection and a lower surface of the connection is concavely shaped.
  • the lower surface of the convex portions of the lower plate contacts the ground through the outsole portions.
  • the void formed between the upper and lower plates acts as a cushion hole to display cushioning properties of the heel portion.
  • the longitudinally separated outsole portions are directly fitted to the lower surfaces of the convex portions of the wavy lower plate, deformation of the convex portions of the wavy lower plate is not restricted at the time of striking onto the ground, thereby enhancing the cushioning properties of the sole heel portion.
  • by securing the deformation of the wavy lower plate bending properties of the sole heel portion is improved. As a result, when a shoe wearer impacts the ground on the rear end of the sole heel portion and the load transfers in the forward direction, a "ride feeling" can be improved.
  • FIG. 8 shows the result of an impact test of the sole structure of the first aspect of the present invention and the prior art sole structure shown in figure 3 of JP publication No. 2003-9906 .
  • the amount of deformation of each of the sole structures after falling of the weight is 18.02mm for the sole structure of the present invention and 14.38mm for the prior art sole structure.
  • the amount of deformation of the first aspect of the present invention is 125.3 in the case where the amount of deformation of the prior art structure is 100. That is, the deformation of the present invention is about 1.25 times greater than that of the prior art structure.
  • a shoe wearer can sense the difference in the cushioning properties if the deformation is 110 relative to 100 in the prior art structure. Therefore, if the deformation is 125.3 as in the present invention, the difference in the cushioning properties is remarkable.
  • the outsole portions By connecting the outsole portions through the connection, the outsole portions can be integrated with each other to improve the efficiency of assembly. Also, in this case, since the lower surface of the connection is formed concave, the connection does not restrict the compressive deformation of the convex portion of the lower plate.
  • a sole structure for a shoe according to a first comparative example includes an upper plate disposed on the upper side of the heel region of the sole structure, a wavy lower plate disposed on the lower side of the heel region and having at least two convex portions that protrude downwardly and that form a void relative to the upper plate, and a plurality of cleats provided on the lower surface of the convex portions of the lower plate.
  • the cleats stick into the ground and then, the lower surface of the convex portions of the lower plate contacts the ground.
  • the void formedbetween the upper and lower plates acts as a cushion hole to display cushioning properties of the heel portion.
  • the cleats are provided on the lower surfaces of the convex portions of the wavy lower plate, deformation of the convex portions of the wavy lower plate is not restricted at the time of striking onto the ground, thereby enhancing the cushioning properties of the sole heel portion.
  • securing the deformation of the wavy lower plate bending properties of the sole heel portion is improved.
  • FIG. 12 shows the result of an impact test of the sole structure of the first comparative example and the prior art sole structure shown in FIG. 11 .
  • the prior art sole structure 100 shown in FIG. 11 differs from the first comparative example (see FIG. 9A ) in that an upper plate is not provided above the lower plate 3 to form the void with the lower plate 3.
  • a weight of 10kg falls down from the height of 60mm onto each of the sole structures, and thereafter, the amount of deformation of each of the sole structures is measured.
  • the thickness of each of the sole structures before falling of the weight is 20mm, and a hit area on each of the sole structures is 15.9cm 2 .
  • the amount of deformation of each of the sole structures after falling of the weight is 133.0mm for the sole structure of the second aspect of the present invention and 11.3mm for the prior art sole structure.
  • the amount of deformation of the present invention is 115.0 in the case where the amount of deformation of the prior art structure is 100. That is, the deformation is about 1.15 times greater than that of the prior art structure.
  • a shoe wearer can sense the difference in the cushioning properties if the deformation is 110 relative to 100 in the prior art structure. Therefore, if the deformation is 115.0, the difference in the cushioning properties is remarkable.
  • a sole structure for a shoe according to a second comparative example includes an upper plate disposed on the upper side of the heel region of the sole structure, a wavy lower plate disposed on the lower side of the heel region and having at least two convex portions that protrude downwardly and that form a void relative to the upper plate, and a cleat provided between the adjacent convex portions of the lower plate.
  • the cleats stick into the ground and then, the lower surface of the convex portions of the lower plate contacts the ground.
  • the void formed between the upper and lower midsole acts as a cushion hole to display cushioning properties of the heel portion.
  • the cleat is provided between the adjacent convex portions of the lower plate, deformation of the convex portions of the wavy lower plate is not restricted at the time of striking onto the ground, thereby enhancing the cushioning properties of the sole heel portion. Also, by securing the deformation of the wavy lower plate, bending properties of the sole heel portion is improved.
  • the upper plate constituting the sole structure of the present invention may have a wavy shape. In this case, deformation of the wavy upper plate further improves the cushioning properties of the sole heel portion.
  • the upper plate may have a convex portion that protrudes in the direction opposite the protruding direction of the convex portion of the lower plate and that is located at a position corresponding to the convex portion of the lower plate. In this case, a large void can be secured between the upper and lower plates to further enhance the cushioning properties of the sole heel portion.
  • the upper plate may have a convex portion that protrudes in the same direction as the protruding direction of the convex portion of the lower plate and that is located at a position corresponding to the convex portion of the lower plate.
  • an elastic block member as a cushioning member between the upper and lower plates, and the upper plate and the lower plate are connected to each other through the elastic block member. Suitable adjustment of elasticity of the elastic block member can further improve the cushioning properties of the sole heel portion.
  • the downwardly protruding convex portion of the wavy configuration of the upper plate may be coupled through the elastic block to the upwardly protruding convex portion between the adjacent convex portions of the lower plate.
  • the upwardly protruding convex portion of the lower plate and the downwardly protruding convex portion of the upper plate are disposed oppositely to each other in the vertical direction, or disposed offset in the longitudinal direction.
  • the number of convex portions of the lower plate may be varied between the medial side and the lateral side of the sole structure.
  • the upper plate may be flat in shape. In this case, since a flat surface is secured on the upper surface of the upper plate, a foot contact surface for a shoe wearer can be easily obtained without providing a midsole on the upper side of the upper plate.
  • a midsole of a soft elastic material may be provided on the upper side of the upper plate to attain an improved favorable touch to the sole of a wearer's foot.
  • the outsole portions may be separately disposed on the medial side and the lateral side of the heel portion.
  • the outsole portions on the medial side may be connected to each other in the longitudinal direction and the outsole portions on the lateral side may be connected to each other in the longitudinal direction.
  • the lower surface of the connection on the lateral side may have a concave shape and the lower surface of the connection on the medial side may have a flat shape to contact the ground.
  • the deformation of the convex portion of the lower plate on the medial side of the heel region is more restricted than the deformation of the convex portion of the lower plate on the lateral side.
  • the outsole portions on the medial side may be connected to each other in the longitudinal direction and the outsole portions on the lateral side may be connected to each other in the longitudinal direction, and the lower surface of the connection on the medial side may have a concave shape and the lower surface of the connection on the lateral side may have a flat shape to contact the ground.
  • the deformation of the convex portion of the lower plate on the lateral side of the heel region is more restricted than the deformation of the convex portion of the lower plate on the medial side.
  • a longitudinally extending rib may be integrated with the upper pate or the lower plate. Since provision of a rib increases the bending rigidity of the upper or lower plate, deformation of the upper or lower plate is restrained, and the bending and cushioning properties can be adjusted.
  • the rib may be formed either on the medial side or the lateral side of the upper or lower midsole.
  • the rib is provided on the medial side of the plate, pronation at the time of impacting the ground can be prevented and the sole structure suited for a running shoe can be proposed.
  • the rib is provided on the lateral side of the plate, supination at the time of sidestepping can be prevented and the sole structure suited for an indoor shoe such as a tennis shoe or a basketball shoe can be proposed.
  • the number of ribs may be different between the medial side and the lateral side of the upper or lower plate. In this case, since the bending rigidity of the plate is made greater on the side with more ribs than the other side, by increasing the number of ribs on the medial side, a sole structure suitable for a running shoe can be attained. Alternatively, by increasing the number of ribs on the lateral side, a sole structure suitable for indoor sports can be attained.
  • a longitudinally extending rib may be integrally formed with the lower plate and at this juncture the ribmaybe disposed only at the position corresponding to the outsole portion and may not be disposed at the region where no outsole portion is provided. Also, in the case where the cleat is provided on the lower surface of the convex portion of the lower plate, the rib may be disposed only at the position corresponding to the cleat and may not be disposed at the region where no cleat is provided. Moreover, in the case where the cleat is provided between the adjacent convex portions of the lower plate, the rib may be disposed only at the position corresponding to the convex portion and may not be disposed between the adjacent convex portions. In these cases, at the time of impacting the ground, the rib can be prevented from excessively restricting the deformation of the wavy lower plate.
  • the upper plate and the wavy lower plate are disposed in the sole heel portion with the void formed therebetween and a plurality of longitudinally separated outsole portions are attached on the lower surface of the convex portions of the lower plate, the deformation of the convex portions of the wavy lower plate is not restricted at the time of striking onto the ground, thereby improving the cushioning and bending properties.
  • FIGS. 1A and 1B show a sole structure or a sole assembly according to a first embodiment which does not form part of the present invention.
  • a sole structure 1 includes an upper plate 2 extending from a heel portion H through a midfoot portion M to the forefoot portion F of the sole structure 1, and a lower plate 3 disposed below the upper plate 2 and extending from the heel portion H through the midfoot portion M to the forefoot portion F similar to the upper plate 2.
  • Both of the upper plate 2 and the lower plate 3 extend in the shoe width direction (see FIG. 2 ), and the front end edges of the plates 2, 3 are coupled to each other and rear end edges of the plates 2, 3 are also coupled to each other.
  • the upper plate 2 has wavy configurations that progress longitudinally in the heel portion H and that have two convex portions 20, 21 each protruding upwardly.
  • the lower plate 3 has wavy configurations that progress longitudinally in the heel portion H similar to the upper plate 2 and that have two convex portions 30, 31 each protruding downwardly.
  • the corresponding convex portions 20, 30 and 21, 31 of the upper and lower plates 2, 3 in the heel portion H are oppositely disposed in the vertical direction. In other words, the convex portions 20, 30 protrude in the opposite directions. Similarly, the convex portions 21, 31 protrude in the opposite directions. Between the corresponding convex portions 20 and 30 is formed a void C and also between the corresponding convex portions 21 and 31 is formed a void C. Additionally, in the forefoot portion F as well, a void C' is formed between the upper plate 2 and the lower plate 3.
  • a plurality of longitudinally separated outsole portions 51-55 are attached on the bottom surface of the lower plate 3.
  • the outsole portions 51, 55 are disposed on the lower surface of the convex portion 30 of the lower plate 3, and the outsole portions 52, 54 and a portion of 53 are disposed on the lower surface of the convex portion 31 of the lower plate 3, as shown in FIG. 1A .
  • the outsole portions 51, 55 are separated in the shoe width direction and similarly, the outsole portions 52, 54 are separated in the shoe width direction.
  • a pair of upwardly extending upraised portions 2b are formed on opposite side edge portions of the upper plate 2.
  • the midsole 4 On the upper surface of the upper plate 2 is attached a midsole 4 that extends from the heel portion H through the midfoot portion M to the forefoot portion F.
  • the midsole 4 has a generally flat foot sole contact surface 4a that contacts the foot sole of the shoe wearer, and a pair of upraised portions 4b that extend upwardly and that are disposed on opposite side edge portions of the foot sole contact surface 4a.
  • the upraised portions 2b of the upper plate 2 are disposed on the outside of the upraised portions 4b of the midsole 4.
  • the upraised portions 4b of the midsole 4 are adapted to be fixedly attached to a bottom portion of a shoe upper (not shown).
  • An elastic block member 6 is disposed between the upper plate 2 and the lower plate 3 at the position where the upper and lower plates 2, 3 are most close to each other in the heel portion H.
  • the upper plate 2 is coupled to the lower plate 3 through the elastic block 6.
  • the downwardly convex portion 25 formed between the adjacent upwardly convex portions 20 and 21 of the upper plate 2 and the upwardly convex portion 35 formed between the adjacent downwardly convex portions 30 and 31 of the upper plate 3 are disposed opposite each other in the vertical direction, and these oppositely disposed portions are connected to each other through the elastic block 6.
  • the elastic block 6 is, in this embodiment, formed of a pair of members disposed on opposite side ends of the heel portion H (see FIG. 1B , a longitudinal sectional view, in which the side surface of one of the elastic blocks 6 is shown), but the elastic block 6 may be formed of only one member extending along the entire width of the heel portion H.
  • the elastic block 6 is provided mainly for preventing the upper and lower plates 2, 3 from directly contacting each other, but it also helps improve the cushioning properties of the sole heel portion by selectively adjusting its elasticity.
  • the upper and lower plates 2, 3 is preferably formed of a hard plastic resin in order to prevent loss of elasticity due to repetitive deformation to maintain the shape of the void C to some degree between the plates 2 and 3.
  • the upper and lower plates 2, 3 may be formed of thermoplastic resin such as thermo plastic polyurethane (TPU), polyamide elastomer (PAE), ABS resin or the like.
  • the upper and lower plates 2, 3 may be formed of thermosetting resin such as epoxy resin, unsaturated polyester resin or the like.
  • the upper and lower plates 2, 3 may be formed of fiber reinforced plastics including carbon fibers or metal fibers.
  • the midsole 4 is preferably formed of the soft elastic material to contact and support the sole of a shoe wearer.
  • foamed thermoplastic resin such as ethylene-vinyl acetate copolymer (EVA), foamed thermosetting resin such as polyurethane (PU), and foamed rubber such as butadiene rubber or chloroprene rubber may be used.
  • vent holes 25 are formed in the heel portion H and the midfoot portion M that extend vertically through the upper plate 2 and the midsole 4 disposed above the upper plate 2.
  • the lower ends of the vent holes 25 are open into the void C formed between the upper plate 2 and the lower plate 3.
  • the upper plate 2 and the lower plate 3 are coupled to each other through the elastic block 7, as shown in FIG. 1A . Also, in the forefoot portion F, an outsole 58 is bonded onto the bottom surface of the lower plate 3.
  • the lower surfaces of the convex portions 30, 31 of the lower plate 3 contacts the ground through the outsole portions.
  • the void C formed between the upper plate 2 and the lower plate 3 acts as a cushion hole to display cushioning properties of the heel portion H.
  • the longitudinally separated outsole portions 51-55 are directly attached to the lower surfaces of the downwardly convex portions 30, 31 of the wavy lower plate 3, compressive deformation of the downwardly convex portions 30, 31 of the wavy lower plate 3 is not restricted at the time of impacting the ground and the cushioning properties of the sole heel portion can thus be improved.
  • the corresponding convex portions 20, 30 between the upper and lower plates 2, 3 may protrude in the same direction and the corresponding convex portions 21, 31 between the upper and lower plates 2, 3 may protrude in the same direction.
  • the radius of curvature of the convex portions 20 is preferably different from the radius of curvature of the convex portions 30 and/or the radius of curvature of the convex portions 21 is preferably different from the radius of curvature of the convex portions 31.
  • the corresponding convex portions between the upper plate 2 and the lower plate 3 may be offset in the longitudinal direction.
  • the lower plate 3 has two convex portions 30, 31 was shown, but the application of the present invention is not limited to such example.
  • the lower plate 3 may have more than three convex portions.
  • the number of convex portions (i.e. two) on the medial side of the upper and lower plates 2, 3 are the same as the number of convex portions (i.e. two) on the lateral side of the upper and lower plates 2, 3, but the application of the present invention is not limited to such example.
  • the number of convex portions on the medial side may be different from that on the lateral side: e.g. two convex portions on the medial side and three convex portions on the lateral side.
  • the first embodiment showed the upper plate 2 having a wavy corrugation in the heel portion H, but in the application of the present invention, the upper plate 2 may be flat in the heel portion H. In this case, since a flat surface is secured on the upper surface of the upper plate 2, a foot contact surface for the shoe wearer can be easily obtained without providing a midsole on the upper side of the upper plate 2.
  • the elastic block may be omitted.
  • the upper and lower plates 2, 3 need not to be coupled to each other at the position where the elastic block was provided.
  • a clearance may be formed between the upper plate 2 and the lower plate 3.
  • the upper and lower plates 2, 3 can be integrally formed, thereby simplifying the manufacturing process and the assembly process.
  • FIG. 3 shows a sole structure according to a second embodiment which does not form part of the present invention.
  • like reference numbers indicate identical or functionally similar elements.
  • the upwardly convex portion 35 between the adjacent downwardly convex portions 30, 31 of the lower plate 3 is positioned against the downwardly convex portion 25 between the adjacent upwardly convex portions 20, 21 of the upper plate 2, whereas in the second embodiment, these convex portions 25, 35 are disposed offset in the longitudinal direction.
  • the downwardly convex portion 25 of the upper plate 2 is disposed in front of the upwardly convex portion 35 of the lower plate 3.
  • An elastic block 6 connecting the downwardly convex portion 25 of the upper plate 2 with the upwardly convex portion 35 of the lower plate 3 extends obliquely upwardly from the lower plate 3 to the upper plate 2.
  • the elastic block 6 shear-deforms as well as bending-deforms.
  • the placement of the convex portion 25 of the upper plate 2 in front of the convex portion 35 of the lower plate 3 facilitates the downward deformation of the upper plate 2, thereby further improving the cushioning properties of the sole heel portion.
  • the upper plate 2 does not extend to the forefoot portion F, but it is disposed mainly at the heel portion H and its front end portion is fixedly attached to the lower plate 3 at the midfoot portion M.
  • FIG. 4 shows a sole structure according to a third embodiment which does not form part of the present invention.
  • like reference numbers indicate identical or functionally similar elements.
  • This third embodiment differs from the second embodiment in that the upper and lower plates 2, 3 have third convex portions 22, 32, respectively.
  • the convex portions 22, 32 protruding in the opposite directions are contraposed in the vertical direction, and a third void C is formed between the convex portions 22, 32.
  • the upwardly convex portion between the adjacent downwardly convex portions 31, 32 of the lower plate 3 is disposed opposite the downwardly convex portion between the adjacent upwardly convex portions 21, 22 of the upper plate 2. These oppositely disposed portions are connected to each other through the elastic block 61.
  • FIGS. 5 and 6 show a sole structure according to a fourth embodiment of the present embodiment.
  • like reference numbers indicate identical or functionally similar elements.
  • the fourth embodiment differs from the first to third embodiment in that the outsole portions are longitudinally connected to each other through the connections 50, 50'.
  • the connections 50 are disposed on the medial side of the heel portion and the connections 50' are disposed on the lateral side of the heel portion.
  • the connections 50, 50' are band-shaped members and each of the bottom surfaces 50a, 50' a of the connections 50, 50' is concave in shape to form a clearance ⁇ between the bottom surfaces 50a, 50'a and the ground surface S when the sole heel portion is in contact with the ground surface S, as shown in FIG. 6 .
  • the outsole portions 50-55 are connected to each other via the connections 50, 50' in the longitudinal direction, the outsole portions can be integrated with each other. Thereby, during assembly, the outsole portions 50-55 can be bonded to the bottom surface of the lower plate 3 at one time. As a result, mis-bonding can be prevented and the assembly accuracy can be improved. Also, in this case, since the connections 50, 50' have concave bottom surfaces 50a, 50'a, the connections 50, 50' does not restrict the compressive deformation of the convex portions 30, 31 of the lower plate 3. Therefore, in this embodiment as well, cushioning and bending properties of the sole heel portion can be improved similarly to the first embodiment. ⁇ Fifth embodiment>
  • both of the connections 50, 50' have concave bottom surfaces 50a, 50'a, but the present invention is not limited to such an example.
  • the bottom surface 50'a of the connection 50' disposed on the lateral side is concave in shape as with the fourth embodiment, whereas the bottom surface 50a of the connection 50 disposed on the medial side is flat in shape so as to be in contact with the ground surface S (see FIG. 6 ). Between the ground contact surface S and the lower surface 50a of the connection 50, a clearance ⁇ is not formed.
  • the deformation of the convex portions 30, 31 of the lower plate 3 on the medial side in the sole heel portion is more restrained than the deformation of the convex portions 30, 31 of the lower plate 3 on the lateral side in the sole heel portion.
  • the bottom surface 50a of the connection 50 disposed on the medial side is concave in shape as with the fourth embodiment, whereas the bottom surface 50'a of the connection 50' disposed on the lateral side is flat in shape so as to be in contact with the ground surface S (see FIG. 6 ). Between the ground contact surface S and the lower surface 50'a of the connection 50', a clearance ⁇ is not formed.
  • the deformation of the convex portions 30, 31 of the lower plate 3 on the lateral side in the sole heel portion is more restrained than the deformation of the convex portions 30, 31 of the lower plate 3 on the medial side in the sole heel portion.
  • FIG. 7 shows a lower plate constituting a sole structure according to a seventh embodiment which does not form part of the present invention.
  • a plurality of ribs 8, 9 extending in the substantially longitudinal direction are integrated with the upper surface of the lower plate 3.
  • the ribs 8 are provided on the medial side of the sole heel portion and the ribs 9 are provided on the lateral side of the sole heel portion. Also, the ribs 9 are disposed at the positions corresponding to the outsole portions 51, 52, respectively. The ribs 8 are disposed at the positions corresponding to the outsole portions 53, 54, respectively. There are no ribs provided between the longitudinally adj acent outsole portions 51, 52 and between the longitudinally adjacent outsole portions 54, 55.
  • the bending rigidity of the lower plate 3 is made higher at the portions where the ribs 8, 9 are provided than at the portions where the ribs 8, 9 are not provided.
  • the deformation of the lower plate 3 is more restricted at the portions where the ribs 8, 9 are provided than at the portions where the ribs 8, 9 are not provided.
  • the ribs 8, 9 are not provided between the outsole portions 51, 52 and between the outsole portions 54, 55, thereby preventing the deformation of the wavy lower plate 3 from being excessively restricted at the time of impacting the ground and preventing the cushioning and bending properties of the sole heel portion from being hindered.
  • the number of ribs 8, 9 may be different between the medial side and the lateral side of the lower plate 3.
  • a rib may be provided on either the medial side or the lateral side of the lower plate 3.
  • a rib is provided only on the medial side of the lower plate 3, or the number of the ribs 8 on the medial side is made greater than the number of the ribs 9 on the lateral side, pronation can be prevented at the time of impacting the ground and a sole structure suited for a running shoe can be attained.
  • a rib is provided only on the lateral side of the lower plate 3, or the number of the ribs 9 on the lateral side is made greater than the number of the ribs 8 on the medial side, supination can be prevented at the time of sidestepping and a sole structure suited for an indoor shoe such as a tennis shoe, basketball shoe or the like can be attained.
  • the seventh embodiment showed the example in which the ribs are provided on the lower plate 3, but in the application of the present invention, the ribs may be provided on the upper plate 2.
  • FIG. 9A shows a sole structure according to an eighth embodiment which does not form part of the present invention.
  • a sole structure 1' includes an upper plate 2 extending from a heel portion H to a midfoot portion M of the sole structure 1', and a lower plate 3 disposed below the upper plate 2 and extending from the heel portion H through the midfoot portion M to a forefoot portion F.
  • the upper plate 2 is coupled to the lower plate 3 at the rear end of the heel portion H and at the front end of the midfoot portion M. Both of the upper plate 2 and the lower plate 3 extend in the shoe width direction.
  • the upper plate 2 has wavy configurations that progress longitudinally in the heel portion H and that have two convex portions 20, 21 each protruding upwardly.
  • the lower plate 3 has wavy configurations that progress longitudinally in the heel portion H similar to the upper plate 2 and that have two convex portions 30, 31 each protruding downwardly.
  • the corresponding convex portions 20, 30 and 21, 31 of the upper and lower plates 2, 3 in the heel portion H are oppositely disposed in the vertical direction. In other words, the convex portions 20, 30 protrude in the opposite directions. Similarly, the convex portions 21, 31 protrude in the opposite directions. Between the corresponding convex portions 20 and 30 is formed a void C and also between the corresponding convex portions 21 and 31 is formed a void C.
  • a plurality of cleats or studs 15, 16 are provided on the bottom surface of the lower plate 3.
  • the cleat 15 is disposed at the region of the heel portion H, and the cleat 16 is disposed at the region of the forefoot portion F.
  • the cleats 15, 16 are fixedly attached to the bottom surface of the lower plate 3 via a thick base portion or a pedestal 17.
  • the base portions 17 and thus the cleats 15 are provided only on the bottom surface of the convex portions 30, 31 of the lower plate 3 and not between the convex portions 30 and 31. Therefore, the base portions 17 are separated in the heel portion H in the longitudinal direction.
  • the respective base portions 17 may be formed integrally with the lower plate 3.
  • the respective cleats 15 are composed of metal members, a portion thereof is embedded in and fixedly attached to the base portion 17.
  • a midsole 4 that extends from the heel portion H through the midfoot portion M to the rear end of the forefoot portion F.
  • An elastic block member 6 is disposed between the upper plate 2 and the lower plate 3 at the position where the upper and lower plates 2, 3 are most close to each other in the heel portion H.
  • the upper plate 2 is coupled to the lower plate 3 through the elastic block 6.
  • the downwardly convex portion 25 formed between the adjacent upwardly convex portions 20 and 21 of the upper plate 2 and the upwardly convex portion 35 formed between the adjacent downwardly convex portions 30 and 31 of the upper plate 3 are disposed opposite each other in the vertical direction, and these oppositely disposed portions are connected to each other through the elastic block 6.
  • the elastic block 6 is, in this embodiment, formed of a pair of members disposed on opposite side ends of the heel portion H, but the elastic block 6 may be formed of only one member extending along the entire width of the heel portion H.
  • the elastic block 6 is provided mainly for preventing the upper and lower plates 2, 3 from directly contacting each other, but it also helps improve the cushioning properties of the sole heel portion by selectively adjusting its elasticity.
  • the upper and lower plates 2, 3 is preferably formed of a hard plastic resin in order to prevent loss of elasticity due to repetitive deformation to maintain the shape of the void C to some degree between the plates 2 and 3.
  • the upper and lower plates 2, 3 may be formed of thermoplastic resin such as thermo plastic polyurethane (TPU), polyamide elastomer (PAE), ABS resin or the like.
  • the upper and lower plates 2, 3 may be formed of thermosetting resin such as epoxy resin, unsaturated polyester resin or the like.
  • the upper and lower plates 2, 3 may be formed of fiber reinforced plastics including carbon fibers or metal fibers.
  • the midsole 4 is preferably formed of a soft elastic material to contact and support the sole of a shoe wearer.
  • foamed thermoplastic resin such as ethylene-vinyl acetate copolymer (EVA), foamed thermosetting resin such as polyurethane (PU), and foamed rubber such as butadiene rubber or chloroprene rubber may be used.
  • the cleat 15 sticks into the ground and then, the lower surfaces of the convex portions 30, 31 of the lower plate 3 contact the ground.
  • the void C formed between the upper plate 2 and the lower plate 3 acts as a cushion hole to display cushioning properties of the heel portion H.
  • the cleats 15 (and thus the base portions 17) are provided only on the lower surface of the convex portions 30, 31 of the wavy lower plate 3, compressive deformation of the downwardly convex portions 30, 31 of the wavy lower plate 3 is not restricted at the time of impacting the ground and the cushioning properties of the sole heel portion can thus be improved.
  • bending properties of the sole heel portion can be enhanced.
  • the corresponding convex portions 20, 30 between the upper and lower plates 2, 3 may protrude in the same direction and the corresponding convex portions 21, 31 between the upper and lower plates 2, 3 may protrude in the same direction.
  • the radius of curvature of the convex portions 20 is preferably different from the radius of curvature of the convex portions 30 and/or the radius of curvature of the convex portions 21 is preferably different from the radius of curvature of the convex portions 31.
  • the corresponding convex portions between the upper plate 2 and the lower plate 3 may be offset in the longitudinal direction.
  • the lower plate 3 has two convex portions 30, 31 was shown, but the application of the present invention is not limited to such example.
  • the lower plate 3 may have more than three convex portions.
  • the present invention is not limited to an example in which the number of convex portions on the medial side of the upper and lower plates 2, 3 is the same as the number of convex portions on the lateral side of the upper and lower plates 2, 3, but the number of convex portions on the medial side may be different from that on the lateral side: e.g. two convex portions on the medial side and three convex portions on the lateral side.
  • the eighth embodiment showed the upper plate 2 having a wavy corrugation in the heel portion H, but in the application of the present invention, the upper plate 2 may be flat in the heel portion H. In this case, since a flat surface is secured on the upper surface of the upper plate 2, a foot contact surface for the shoe wearer can be easily obtained without providing a midsole on the upper side of the upper plate 2.
  • the elastic block may be omitted.
  • the upper and lower plates 2, 3 need not to be coupled to each other at the position where the elastic block was provided.
  • a clearance may be formed between the upper plate 2 and the lower plate 3.
  • the upper and lower plates 2, 3 can be integrally formed, thereby simplifying the manufacturing process and the assembly process.
  • FIG. 9B shows a variant of the eighth embodiment which does not form part of the present invention.
  • the variant is different from the eighth embodiment in that a plurality of U-shaped or V-shaped bent portions 38 are provided at the lower plate 3 in the forefoot portion F and the midsole 4 extends to the front end of the forefoot portion F.
  • the respective bent portions 38 extend in the width direction of the forefoot portion F. In this case, not only cushioning properties of the sole heel portion can be secured as with the eighth embodiment but also bending properties of the sole forefoot portion can be improved by the bent portions 38.
  • FIGS. 10A and 10B show a sole structure according to a ninth embodiment which does not form part of the present invention.
  • the same reference numbers as those in the eighth embodiment indicate identical or similar elements.
  • the ninth embodiment differs from the eighth embodiment in that the lower plate 3 has three convex portions 30, 31, 32 and the upper plate 2 has three convex portions 20, 21, 22 that correspond to the convex portions 30, 31, 32, respectively, and the thick base portions or pedestals 17 (and thus the cleats 15) of the heel portion H are provided only between the adjacent convex portions 30 and 31 and between the adjacent convex portions 31 and 32 of the lower plate 3. Therefore, the base portions 17 are separated in the longitudinal direction in the heel portion H as with the eighth embodiment.
  • the cleats 15 stick into the ground and then, the lower surface of the convex portions 30, 31, 32 of the lower plate 3 contacts the ground.
  • the void C formed between the upper plate 2 and the lower plate 3 acts as a cushion hole to display cushioning properties of the heel portion H.
  • the cleat 15 (and thus the base portions 17) is provided only between the adjacent convex portions 30 and 31 and between the adjacent convex portions 31 and 32 of the wavy lower plate 3, compressive deformation of the downwardly convex portions 30, 31 of the wavy lower plate 3 is not restricted at the time of impacting the ground and the cushioning properties of the sole heel portion can thus be improved. Also, in this case, by securing the deformation of the wavy lower plate 3, bending properties of the sole heel portion can be enhanced.
  • the corresponding pairs of convex portions 20, 30; 21, 31; 22, 32 between the upper and lower plates 2, 3 may protrude in the same direction.
  • the radius of curvature of the convex portions of the lower plate 3 is preferably different from the radius of curvature of the corresponding convex portions of the upper plate 2.
  • the corresponding convex portions between the upper plate 2 and the lower plate 3 may be offset in the longitudinal direction.
  • the application of the present invention is not limited to an example in which the number of convex portions on the medial side of the upper and lower plates 2, 3 is the same as the number of convex portions on the lateral side of the upper and lower plates 2, 3, but the number of convex portions on the medial side may be different from that on the lateral side.
  • the application of the present invention is not limited to an example in which the upper plate 2 has a wavy corrugation in the heel portion H, but the upper plate 2 may be flat in the heel portion H.
  • the upper plate 2 since a flat surface is secured on the upper surface of the upper plate 2, a foot contact surface for the shoe wearer can be easily obtained without providing a midsole on the upper side of the upper plate 2.
  • the elastic block 6 may be omitted.
  • the upper and lower plates 2, 3 need not to be coupled to each other at the position where the elastic block was provided.
  • a clearance may be formed between the upper plate 2 and the lower plate 3.
  • the upper and lower plates 2, 3 can be integrally formed, thereby simplifying the manufacturing process and the assembly process.
  • FIG. 10C shows a variant of the ninth embodiment of the present invention.
  • the variant is different from the ninth embodiment in that a plurality of U-shaped or V-shaped bent portions 38 are provided at the lower plate 3 in the forefoot portion F and the midsole 4 extends to the front end of the forefoot portion F.
  • the respective bent portions 38 extend in the width direction of the forefoot portion F. In this case, not only cushioning properties of the sole heel portion can be secured as with the ninth embodiment but also bending properties of the sole forefoot portion can be improved by the bent portions 38.
  • the sole structure according to the present invention is useful for a sole structure of a running shoe, or a sole structure of an indoor shoe such as a tennis shoe, a basketball shoe and the like, alternatively, a sole of a cleated shoe such as a baseball shoe, a golf shoe and the like. It is especially suitable for a sole that requires high cushioning properties at the sole heel portion.

Claims (18)

  1. Sohlenstruktur (1) für einen Schuh, umfassend:
    eine obere Platte (2), die an einer oberen Seite eines Fersenbereichs (H) der Sohlenstruktur (1) angeordnet ist;
    eine wellige untere Platte (3), die an einer unteren Seite des Fersenbereichs (H) der Sohlenstruktur (1) angeordnet ist und mindestens zwei konvexe Abschnitte (30, 31) aufweist, die nach unten vorstehen und die relativ zu der oberen Platte (2) Hohlräume (C) bilden; und
    eine Vielzahl von Außensohlenabschnitten (51-55), die in einer Längsrichtung unterteilt sind und die an unteren Oberflächen der konvexen Abschnitte (30, 31) der unteren Platte angebracht sind,
    wobei die der Länge nach benachbarten Außensohlenabschnitte (51-55) durch eine Verbindung (50, 50') miteinander gekoppelt sind und eine untere Oberfläche der Verbindung (50, 50') konkav geformt ist.
  2. Sohlenstruktur (1) nach Anspruch 1, wobei die obere Platte (2) wellenförmig ist.
  3. Sohlenstruktur (1) nach Anspruch 2, wobei die obere Platte (2) an den Positionen, die den konvexen Abschnitten (30, 31) der unteren Platte (3) entsprechen, konvexe Abschnitte (20, 21) aufweist, die in der zu der vorstehenden Richtung der konvexen Abschnitte (30, 31) der unteren Platte (3) entgegengesetzten Richtung vorstehen.
  4. Sohlenstruktur (1) nach Anspruch 2, wobei die obere Platte (2) an den Positionen, die den konvexen Abschnitten (30, 31) der unteren Platte (3) entsprechen, konvexe Abschnitte (20, 21) aufweist, die in derselben Richtung wie die vorstehende Richtung der konvexen Abschnitte (30, 31) der unteren Platte (3) vorstehen.
  5. Sohlenstruktur (1) nach Anspruch 1, wobei zwischen der oberen Platte (2) und der unteren Platte (3) ein elastisches Blockelement (6) angeordnet ist und die obere Platte (2) und die untere Platte (3) durch das elastische Blockelement (6) miteinander gekoppelt sind.
  6. Sohlenstruktur (1) nach Anspruch 5, wobei die obere Platte (2) wellenförmig ist und ein zwischen den benachbarten, nach unten konvexen Abschnitten (30, 31) der unteren Platte (3) gebildeter, nach oben konvexer Abschnitt (35) durch das elastische Blockelement (6) an einen zwischen den benachbarten, nach oben konvexen Abschnitten (20, 21) der oberen Platte (2) gebildeten, nach unten konvexen Abschnitt (25) gekoppelt ist.
  7. Sohlenstruktur (1) nach Anspruch 6, wobei der nach oben konvexe Abschnitt (35) der unteren Platte (3) in der vertikalen Richtung gegenüber dem nach unten konvexen Abschnitt (25) der oberen Platte (2) angeordnet ist.
  8. Sohlenstruktur (1) nach Anspruch 6, wobei der nach oben konvexe Abschnitt (35) der unteren Platte (3) relativ zu dem nach unten konvexen Abschnitt (25) der oberen Platte (2) in der Längsrichtung versetzt angeordnet ist.
  9. Sohlenstruktur (1) nach Anspruch 1, wobei sich die Anzahl an konvexen Abschnitten (30, 31) der unteren Platte (3) zwischen einer medialen Seite und einer lateralen Seite der Sohlenstruktur (1) unterscheidet.
  10. Sohlenstruktur (1) nach Anspruch 1, wobei die obere Platte (2) eine flache Form aufweist.
  11. Sohlenstruktur (1) nach Anspruch 1, wobei an der oberen Seite der oberen Platte (2) eine Zwischensohle (4) aus einem weichen elastischen Material angeordnet ist.
  12. Sohlenstruktur (1) nach Anspruch 1, wobei die durch eine Verbindung (50') mit einer konkav geformten unteren Oberfläche (50'a) miteinander gekoppelten, der Länge nach benachbarten Außensohlenabschnitte (51-55) an einer lateralen Seite des Fersenbereichs (H) bereitgestellt sind und wobei der Länge nach benachbarte Außensohlenabschnitte (51-55) ferner an der medialen Seite bereitgestellt sind und durch eine Verbindung (50) in der Längsrichtung miteinander gekoppelt sind, wobei eine untere Oberfläche (50a) der Verbindung (50) an der medialen Seite eine flache Form aufweist, die mit der Bodenoberfläche (S) in Kontakt kommt.
  13. Sohlenstruktur (1) nach Anspruch 1, wobei die durch eine Verbindung (50) mit einer konkav geformten unteren Oberfläche (50a) miteinander gekoppelten, der Länge nach benachbarten Außensohlenabschnitte (51-55) an einer medialen Seite des Fersenbereichs (H) bereitgestellt sind und wobei der Länge nach benachbarte Außensohlenabschnitte (51-55) ferner an der lateralen Seite bereitgestellt sind und durch eine Verbindung (50') in der Längsrichtung miteinander gekoppelt sind, wobei eine untere Oberfläche (50'a) der Verbindung (50') an der lateralen Seite eine flache Form aufweist, die mit der Bodenoberfläche (S) in Kontakt kommt.
  14. Sohlenstruktur (1) nach Anspruch 1, wobei eine sich der Länge nach erstreckende Rippe (8, 9) mit der oberen und der unteren Platte (2, 3) einstückig gebildet ist.
  15. Sohlenstruktur (1) nach Anspruch 14, wobei die Rippe (8, 9) mindestens entweder an der medialen Seite oder an der lateralen Seite der oberen Platte (2) oder der unteren Platte (3) bereitgestellt ist.
  16. Sohlenstruktur (1) nach Anspruch 15, wobei sich die Anzahl der Rippen (8, 9) zwischen der medialen Seite und der lateralen Seite der oberen Platte (2) oder der unteren Platte (3) unterscheidet.
  17. Sohlenstruktur (1) nach Anspruch 1, wobei eine sich der Länge nach erstreckende Rippe (8, 9) mit der unteren Platte (3) einstückig gebildet ist, wobei die Rippe (8, 9) an der Position, die dem Außensohlenabschnitt (51-55) entspricht, angeordnet ist.
  18. Sohlenstruktur (1) nach Anspruch 1, wobei die Verbindung (50, 50') streifenförmig ist.
EP06747151.6A 2005-05-30 2006-05-30 Sohlenstrukturkörper für schuhe Active EP1894484B1 (de)

Applications Claiming Priority (3)

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JP2005156635 2005-05-30
PCT/JP2005/021751 WO2006129392A1 (ja) 2005-05-30 2005-11-21 シューズのソール構造体
PCT/JP2006/311171 WO2006129837A1 (ja) 2005-05-30 2006-05-30 シューズのソール構造体

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EP1894484A1 EP1894484A1 (de) 2008-03-05
EP1894484A4 EP1894484A4 (de) 2014-05-14
EP1894484B1 true EP1894484B1 (de) 2018-03-14

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USD969469S1 (en) 2020-12-22 2022-11-15 Puma SE Shoe
US11622602B2 (en) 2020-08-18 2023-04-11 Puma SE Article of footwear having a sole plate
USD1010297S1 (en) 2021-06-30 2024-01-09 Puma SE Shoe
USD1011718S1 (en) 2020-12-22 2024-01-23 Puma SE Shoe
USD1022422S1 (en) 2023-05-02 2024-04-16 Puma SE Shoe

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JP5161626B2 (ja) * 2008-03-27 2013-03-13 美津濃株式会社 緩衝構造体および当該緩衝構造体を用いたスポーツ用シューズのソール構造
JP4317893B1 (ja) 2008-03-28 2009-08-19 美津濃株式会社 シューズのソール構造体
JP4388580B2 (ja) 2008-03-28 2009-12-24 美津濃株式会社 スポーツ用シューズのインソール構造体
JP4874349B2 (ja) * 2008-03-31 2012-02-15 美津濃株式会社 シューズのソール構造体
JP5037407B2 (ja) 2008-03-31 2012-09-26 美津濃株式会社 シューズのソール構造体
JP4906157B2 (ja) 2009-07-03 2012-03-28 美津濃株式会社 シューズのソール構造体
JP5827051B2 (ja) * 2011-07-09 2015-12-02 美津濃株式会社 シューズのソール構造体
KR101165793B1 (ko) 2011-08-26 2012-07-16 (주)지원에프알에스 충격 흡수성과 분산성 및 유연성이 강화된 신발창
US9615621B2 (en) * 2012-06-04 2017-04-11 Nike, Inc. Sole structure with integrated cleat member and methods of making
JP5684319B2 (ja) 2013-04-18 2015-03-11 美津濃株式会社 シューズのソール構造体
JP6310427B2 (ja) 2015-08-07 2018-04-11 美津濃株式会社 シューズのソール構造
WO2017173076A1 (en) 2016-04-01 2017-10-05 Nike Innovate C.V. Article of footwear with adaptive fit
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US11622602B2 (en) 2020-08-18 2023-04-11 Puma SE Article of footwear having a sole plate
US11825904B2 (en) 2020-08-18 2023-11-28 Puma SE Article of footwear having a sole plate
USD969469S1 (en) 2020-12-22 2022-11-15 Puma SE Shoe
USD1011718S1 (en) 2020-12-22 2024-01-23 Puma SE Shoe
USD1010297S1 (en) 2021-06-30 2024-01-09 Puma SE Shoe
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CA2609635C (en) 2011-05-10
CA2609635A1 (en) 2006-12-07
EP1894484A4 (de) 2014-05-14
JPWO2006129837A1 (ja) 2009-01-08
WO2006129837A1 (ja) 2006-12-07
JP4020953B2 (ja) 2007-12-12
SE0700210L (sv) 2007-03-30
EP1894484A1 (de) 2008-03-05
SE530478C2 (sv) 2008-06-17

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