EP3146862B1 - Article de chaussure a semelle ondulee - Google Patents

Article de chaussure a semelle ondulee Download PDF

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Publication number
EP3146862B1
EP3146862B1 EP16188094.3A EP16188094A EP3146862B1 EP 3146862 B1 EP3146862 B1 EP 3146862B1 EP 16188094 A EP16188094 A EP 16188094A EP 3146862 B1 EP3146862 B1 EP 3146862B1
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EP
European Patent Office
Prior art keywords
midsole
footwear
article
peaks
troughs
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
EP16188094.3A
Other languages
German (de)
English (en)
Other versions
EP3146862A2 (fr
EP3146862A3 (fr
EP3146862B8 (fr
Inventor
Erica Callahan
Matthew Montross
Henry Hardigan
Ricardo Vestuti
Matthew Boudreau
Daniel Hobson
Scott Daley
Bob Bischoff
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.)
REEBOK INTERNATIONAL Ltd
Original Assignee
Reebok International Ltd
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 US12/506,957 external-priority patent/US9392843B2/en
Priority claimed from US12/748,246 external-priority patent/US9015962B2/en
Priority claimed from US12/832,464 external-priority patent/US9433256B2/en
Priority to EP19196198.6A priority Critical patent/EP3603437B1/fr
Application filed by Reebok International Ltd filed Critical Reebok International Ltd
Priority to EP21185399.9A priority patent/EP3912509A3/fr
Publication of EP3146862A2 publication Critical patent/EP3146862A2/fr
Publication of EP3146862A3 publication Critical patent/EP3146862A3/fr
Publication of EP3146862B1 publication Critical patent/EP3146862B1/fr
Publication of EP3146862B8 publication Critical patent/EP3146862B8/fr
Application granted granted Critical
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223—Profiled soles

Definitions

  • the present invention is directed to an article of footwear having an undulating sole.
  • the human foot is a complex and remarkable piece of machinery, capable of withstanding and dissipating many impact forces.
  • the human foot possesses natural cushioning and rebounding characteristics, the foot alone is incapable of effectively overcoming many of the forces encountered during every day activity.
  • an individual is wearing shoes which provide proper cushioning and support, the soreness and fatigue associated with every day activity is more acute, and its onset accelerated. The discomfort for the wearer that results may diminish the incentive for further activity.
  • Equally important, inadequately cushioned footwear can lead to injuries such as blisters; muscle, tendon and ligament damage; and bone stress fractures. Improper footwear can also lead to other ailments, including back pain.
  • an article of footwear includes an undulating foam sole.
  • the undulating foam sole includes a plurality of spaced apart peaks, wherein at least one pair of adjacent peaks define a gap void of material between adjacent peaks, and a plurality of spaced apart troughs, wherein at least one trough is adapted to engage the ground and wherein at least one pair of adjacent troughs define a gap void of material between adjacent troughs.
  • an article of footwear in another embodiment, includes an undulating foam midsole.
  • the undulating midsole includes a first side, a second side, a plurality of spaced apart peaks extending along a width of the midsole between the first and second sides, and a plurality of spaced apart troughs extending along a width of the midsole between the first and second sides.
  • At least one pair of adjacent peaks define a gap void of material between the adjacent peaks that extends along the width of the midsole with one end at the first side and another end at the second side.
  • At least one pair of adjacent troughs define a gap void of material between the adjacent troughs that extends along the width of the midsole with one end at the first side and another end at the second side.
  • an article of footwear includes an undulating midsole and a plate.
  • the undulating midsole includes a first side, a second side, a plurality of spaced apart peaks extending along a width of the midsole between the first and second sides, and a plurality of spaced apart troughs extending along a width of the midsole between the first and second sides.
  • the plate is attached to the plurality of spaced apart peaks.
  • Each of the plurality of spaced apart peaks has a greater height at the first and second sides of the midsole than in an area between the first and second sides.
  • an article of footwear in a further embodiment, includes an upper; a plate connected to the upper; and an undulating sole having a top surface connected to the plate and a bottom surface, the sole comprising a plurality of spaced apart peaks defining a plurality of gaps in the top surface and a plurality of spaced apart troughs defining a plurality of gaps in the bottom surface.
  • the article of footwear may further comprise one or more support elements coupled to the sole for providing support thereto.
  • the support element may be disposed between the sole and the plate. In one embodiment, the support element may be disposed in a gap in the top surface of the sole.
  • a sole for an article of footwear includes a midsole having a heel portion, a forefoot portion, a medial sidewall and a lateral sidewall, and wherein the midsole is substantially sinusoidal along at least a portion of the length of the midsole, and wherein the midsole extends along a width of the midsole.
  • sinusoidal and sine wave refer to the undulating shape of the midsole and are not meant to be used in a strict mathematical sense.
  • the midsole may extend across the entire width of the midsole between the medial sidewall and the lateral sidewall and may have a top surface shaped to receive an upper of an article of footwear.
  • the midsole may be substantially sinusoidal along a portion of, or substantially the entire length of, the midsole.
  • the lateral sidewall and/or the medial sidewall may be substantially sinusoidal.
  • the midsole may be substantially sinusoidal across the entire width of the midsole.
  • the lateral and/or medial sidewalls may include a plurality of peaks having rounded top surfaces, flat top surfaces, pointed top surfaces, or combinations thereof.
  • the midsole may comprise foam, and an outsole may be coupled to the midsole.
  • a sole for an article of footwear includes a midsole having a top surface, a bottom surface, a medial sidewall, and a lateral sidewall, wherein the midsole undulates to define a plurality of spaced apart gaps in the top surface and a plurality of spaced apart gaps in the bottom surface.
  • Each of a plurality of top surface gaps may be disposed between adjacent bottom surface gaps.
  • the top surface gaps and/or the bottom surface gaps may be substantially evenly spaced apart.
  • one or more gaps extend across the entire width of the midsole.
  • the lateral and/or medial sidewalls include a plurality of peaks and each peak is disposed between adjacent top surface gaps.
  • the lateral and/or medial sidewalls may include a plurality of peaks having rounded top surfaces, flat top surfaces, pointed top surfaces, or combinations thereof.
  • the midsole extends across the entire width of the sole between the medial sidewall and the lateral sidewall.
  • the portion of the midsole between the medial sidewall and the lateral sidewall does not undulate.
  • one or more gaps extend across the entire width of the midsole and/or only a portion of the width of the midsole.
  • An article of footwear 100 may have a sole 200 that undulates to provide a different and unique ride and/or feel to article of footwear 100 while also providing a unique aesthetic appeal and providing training for the wearer's muscles in the legs, lower back, and/or abdomen.
  • a foot plate 300 is attached to undulating sole 200 and an upper 400 is attached to foot plate 300.
  • Sole 200 may include a midsole 202 having an undulating shape with alternating peaks 204 and troughs 206.
  • the undulating shape of midsole 202 may be substantially sinusoidal, whereby one or more of the peaks and/or troughs may be rounded.
  • one or more of the peaks and/or troughs may have a top surface that is substantially flat, as shown for example, in FIG. 34 .
  • the undulating shape of midsole 202 may be zigzagged, whereby one or more of the peaks and/or troughs may be pointed.
  • peaks 204 may be located substantially equidistant between adjacent troughs 206, and similarly, troughs 206 may be located substantially equidistant between adjacent peaks. Between each peak 204 and each trough 206 may be a wall 208. Gaps 210 devoid of material may be present between adjacent peaks 204 and above a trough 206 and gaps 212 devoid of material may be present between adjacent troughs 206 and below a peak 204. Gaps 210 and gaps 212 may extend across an entire width of midsole 202. In an alternative embodiment, gaps 210 and gaps 212 may extend only along a portion of midsole 202. In one example, the undulating shape of midsole 202 may be substantially similar to a sine wave. A distance between adjacent peaks 204 or adjacent troughs 206 may be substantially similar or may be varied along a length of midsole 202 or combinations thereof.
  • Midsole 202 may be designed such that each trough 206 contacts or engages the ground separately when a user is walking, running, or otherwise moving under his/her own power. As each trough 206 contacts or engages the ground a compressive force is exerted causing distortion of the shape of gap 210 located above trough 206 as a result of vertical buckling of walls 208 connected to trough 206. The compressive forces can also distort the shape of gaps 212 on either side of trough 206 to increase the distance between the trough 206 contacting or engaging the ground and those adjacent to it. Shear forces exerted on midsole 202 may have the same effect of buckling walls 208 and distorting the shape of gaps 210 and 212.
  • midsole 202 must be sufficiently flexible to allow the buckling and distortions described above so as to provide adequate cushioning.
  • Suitable material for midsole 202 may include, but is not limited to, foam and thermoplastic polyurethane.
  • the foam may be, for example, ethyl vinyl acetate (EVA) based or polyurethane (PU) based and the foam may be an open-cell foam or a closed-cell foam.
  • midsole 202 may be elastomers, thermoplastic elastomers (TPE), foam-like plastic (e.g., Pebax® foam or Hytrel® foam) and gel-like plastics.
  • midsole 202 that uniquely absorb the compressive and shear forces may include the: (1) tall, thin shape of walls 208, (2) angles between adjacent walls 208 of undulating midsole 202, (3) gaps 210 and 212 void of material on either side of walls 208; and/or (4) compression of the foam itself (aside from distortion of the sole geometry). Buckling may occur due to tall, thin walls 208. The voids of material or gaps 210, 212 may allow for the buckling and/or distention of the material of midsole 202 to occur when loaded. The contact of midsole 202 on the ground in the midfoot region may provide a new ride to the shoe.
  • the heel strike may take a prolonged amount of time compared to a typical running shoe, which can decrease the peak forces.
  • a force is applied to the midsole, not only does the midsole material compress, but the physical shape of the midsole may also change to absorb the compressive and shear forces.
  • the physical changes in shape, and/or the buckling which may include walls 208 distending into one of the voids of material or gaps 210, 212 on either side of the wall, may occur because of the tall, thin shape of walls 212, angles between walls 208 of the undulating midsole 202, and/or voids of material or gaps 210, 212 on either side of walls 208.
  • the unique shape, midsole contact with the ground in the midfoot region, and/or material may vary the amount of time spent in each phase of the gait cycle for an individual compared to a more traditional running shoe, possibly decreasing the peak force experienced by that individual.
  • midsole 202 may cause the wearer's body to work harder.
  • the shoe may trigger increased training to the muscles, such as those muscles in the wearer's calves, thighs, lower back, buttocks, and/or abdomen.
  • forces acting on midsole 202 may cause the wearers' body to work less hard.
  • midsole 202 may be adapted to enhance the natural resiliency and energy return of the foot by storing energy during its compression and returning energy during its expansion. As a result, muscles used during an activity may undergo less wear.
  • Walls 208 may be contoured to provide gaps 210 and gaps 212 with a variety of shapes in order to impart varying cushioning effects. In one embodiment, as shown for example in FIGs. 1 and 6 , gaps 210 may be substantially v-shaped.
  • the angle provided between adjacent walls 208 may be adapted to provide the desired cushioning properties. For example, in one embodiment the angle between adjacent walls 208 may be in the range of from about 10 degrees to about 50 degrees, such as from about 10 degrees to about 40 degrees or about 15 degrees to about 35 degrees. In one embodiment, the angle between adjacent walls may vary along the length of midsole 202.
  • the angle may be greater between one or more pair of adjacent walls 208 in the heel portion of midsole 202 and lesser between one or more pair of adjacent walls 208 in the forefoot portion.
  • the angle between adjacent walls 208 in the forefoot portion may be from about 30 to about 40 degrees.
  • the angle between adjacent walls 208 in the heel portion may be from about 15 to about 25 degrees.
  • the depth of gaps 210 and 212 may also be varied to provide the desired cushioning properties.
  • the depth of gaps 210 may vary along the length of midsole 202.
  • gaps 210 may be deeper in the heel region of midsole 202, and become more shallow toward the forefoot region of midsole 202.
  • the gaps 212 are substantially omega-shaped ( ⁇ ), as shown for example in FIGs. 3 and 5 , such that each gap 212 has a rounded top section and a narrow bottom section wherein the distance di between the surface of the two walls 208 forming and facing each gap 212 is shorter at the bottom of gap 212 than a distance d2 in a middle portion of gap 212.
  • midsole 202 may include ten gaps 210.
  • midsole 202 may include in the range of two to fifteen gaps.
  • midsole 202 may include in the range of five to thirteen gaps.
  • midsole 202 may include in the range of eight to twelve gaps.
  • midsole 202 may include at least five gaps.
  • midsole 202 may include at least eight gaps.
  • midsole 202 may include at least ten gaps.
  • the number of gaps 210 and 212 may vary depending upon a thickness of walls 208, a frequency of the undulation, and/or the angle between adjacent walls 208.
  • One or more troughs 206 of midsole 202 may have an outsole piece 213 attached thereto to provide additional traction.
  • Outsole piece 213 may be rubber or any suitable material typically utilized for an outsole.
  • a trough 206 may have one or more outsole pieces 213.
  • outsole piece 213 may contact one or more troughs 206 and span a portion of gap 212 between adjacent troughs 206.
  • FIG. 4 shows that shows for example in FIG.
  • midsole 202 may have an outsole piece 213 that covers a periphery of a heel region of midsole 202 and/or another outsole piece 213 that covers a periphery of a forefoot region of midsole 202.
  • Outsole piece 213 spans gaps 212 between adjacent troughs 206 and may include areas of reduced thickness 217 that allow outsole piece 213 to flex and lengthen when gaps 212 lengthen.
  • Outsole pieces 213 may be made from a suitable polymeric material that permits the above-described lengthening and flexing.
  • the above embodiments are merely exemplary and one skilled in the art would readily appreciate the pattern of outsole piece(s) 213 on trough(s) 206 of midsole 202 may have a variety of configurations.
  • a bottom surface 215 of each trough 206 may have a contour that varies across a width of midsole 202.
  • Bottom surface 215 of each trough 206 may have the same contour and/or shape, varying contours and/or shapes and combinations thereof.
  • shape and pattern of outsole piece(s) 213 may correspond to the contour or shape of bottom surfaces 215 of troughs 206.
  • Midsole 202 may be a single piece, as shown for example in FIGs. 2 and 4 , or may comprise two or more pieces.
  • midsole 202 may have a lateral midsole piece 214 extending along a lateral side of article of footwear 100 and a medial midsole piece 216 extending along a medial side of article of footwear 100 with a space 218 located between lateral midsole piece 214 and medial midsole piece 216.
  • a forefoot outsole piece 220 may be attached to both lateral midsole piece 214 and medial midsole piece 216 in a manner such that forefoot outsole piece 220 spans and covers a portion of space 218 at the forefoot of article of footwear 100.
  • a heel outsole piece 222 may be attached to both lateral midsole piece 214 and medial midsole piece 216 in a manner such that heel outsole piece 222 spans and covers a portion of space 218 at the heel of article of footwear 100.
  • Lateral midsole piece 214 and medial midsole piece 216 may have corresponding undulations such that peaks 204 and troughs 206 of each piece are aligned when assembled in article of footwear 100.
  • Having a separate lateral midsole piece 214 and medial midsole piece 216 may have the advantage of providing a ride or cushioning different from a single piece midsole 202.
  • midsole 202 may be shaped so that peaks 204 have a greater height at first and second sides 224, 226 of midsole 202 than in an area between first and second sides 224, 226.
  • a top surface 228 of each peak 204 is substantially concave, thereby providing a recess for receiving foot plate 300.
  • top surface 228 of some peaks 204 may have a groove 230 adjacent first and/or second sides 224, 226 that aids in aligning foot plate 300 in the recess and holding foot plate 300 in place.
  • the portion of the midsole between the first and second sides 224, 226 does not undulate and only first (e.g., lateral) side 224 and/or second (e.g., medial) side 226 undulate. Portions of gaps 210 and/or 212 between first and second sides 224 and 226 may be filled in.
  • Foot plate 300 may have a bottom surface 302 with a plurality of ridges 304 extending outward from bottom surface 302.
  • Ridges 304 may be shaped to provide outlines that correspond to the size, shape, and contour of top surfaces 228 of peaks 204 of midsole 202. Ridges 304 may also extend to side surfaces 306 of foot plate 300. Accordingly, ridges 304 aid in aligning foot plate 300 on top surfaces 228 of peaks 204 of midsole 202.
  • Foot plate 300 may be any suitable thermoplastic material or composite material and, in some embodiments, may be manufactured through molding or lay-up.
  • foot plate 300 may be a molded foam, such as a compression molded foam, TPU, or Pebax®.
  • foot plate 300 may be formed separately from midsole 202 and then attached and joined to midsole 202 through adhesive bonding, welding, or other suitable techniques as would be apparent to one of ordinary skill in the art. Areas 308 of bottom surface 302 that contact top surfaces 228 of peaks 204 may be textured to facilitate attachment of foot plate 300 to midsole 202.
  • foot plate 300 and midsole 202 may be co-molded and thereby formed together simultaneously.
  • Midsole 202 may be used in conjunction with a variety of uppers 400.
  • upper 400 may have a bootie 402 for receiving the foot of a wearer attached to an upper surface (not shown) of foot plate 300.
  • plate 300 may be placed inside shoe 100 and midsole 202 may be attached directly to upper 400.
  • Bootie 402 may be any suitable material that is lightweight and breathable known to those of ordinary skill in the art for use as an upper. Bootie 402 may be attached to the foot plate through adhesive or other conventional attachment techniques.
  • Upper 400 may also have one or more structural members 404 extending from foot plate 300. Structural members 404 provide structure to bootie 402 and may extend along the lateral and medial sides and be utilized in lacing article of footwear 100.
  • Structural members 404 may also be present at a heel area to provide an internal or external heel counter or at a forefoot area to provide an internal or external toe cap. Structural members 404 may be molded from suitable polymeric materials known to those of ordinary skill in the art. Structural members 404 may also have a variety of shapes and sizes as would be apparent to one of ordinary skill in the art.
  • midsole 202 may be molded by injection molding using one or more molds 600.
  • the mold 600 may include molds for one or more midsoles 202.
  • mold 600 may include a plurality of ridges 601 which correspond to the one or more gaps 212 of midsole 202.
  • injection sites or sprue passages 601 may be used to introduce midsole material into the mold. As shown in FIGs.
  • eleven (11) sprues may be used to introduce material into the mold, thereby resulting in posts 232, which will be subsequently removed, extending from midsole 202 in the areas corresponding to the sprues. In this manner, the material may be distributed evenly throughout the midsole.
  • one sprue may be used in the area of the rearmost peak, and two sprues may be used at each of the next two peaks in the heel region. Two sprues may also be used at each of the fifth, seventh, and ninth peaks in midsole 202.
  • one or more sprues may be used at each of the peaks to introduce the midsole material to the mold.
  • sprues for introducing midsole material into the mold may be useful because sprues may provide for even flow of material; may help to provide proper curing of material; may help to provide even temperature distribution after filling which, in turn, may contribute to consistent skin thickness; may help to make midsoles that are consistent left to right; and may help to make sure the mold is fully filled.
  • Other arrangements for introducing material into the molds during manufacture of midsole 202 may be used.
  • other methods of molding may be utilized including, but not limited to, compression molding, injection molding, and expansion molding, whereby pellets are placed in a mold and expanded.
  • the mold may comprise a smaller size than the desired size of the midsole.
  • the mold may comprise about 65% to about 75% of the size of the finished midsole. Depending on the expansion ratio of the material used, other mold sizes may be used.
  • one or more post-molding forms 610 may be used after midsole 202 is removed from mold 600 during manufacturing. After removal from mold 600, top surface of midsole 202 may be placed on top of post-molding form 610.
  • Post-molding form 610 may include a plurality of ridges 611 formed on a base 612 which correspond to the one or more gaps 210 of midsole 202.
  • bottom surface of midsole 202 may be placed on top of post-molding form 610, and ridges 611 may correspond to one or more gaps 212 of midsole 202.
  • Post-molding form 610 may facilitate proper cooling and shaping of midsole 202.
  • midsole 202 may contract as it cools and/or finishes curing. Because the form is dimensionally stable, post-molding form 610 may limit and/or direct the contraction of the midsole 202 such that the midsole results in the desired shape. In some but not necessarily all embodiments, portions of midsole 202 may have varying thicknesses and/or may cool at different rates. As a result, midsole 202 may curl or otherwise become misshapen without use of post-molding form 610.
  • one or more weights 620 may be placed on midsole 202 as it cools to further facilitate proper cooling and shaping. In one embodiment, a weight 620 may be placed on midsole 202 in the heel area and in the forefoot area of the midsole.
  • Post-molding form 610 may comprise plastic, ceramic, metal, wood, bamboo, cast epoxy, or other suitable material.
  • Midsole 202 may be molded to tailor to various needs such as, for example, to prevent pronation or supination. In such instances, certain areas of midsole 202 may be imparted with different characteristics in order to achieve such customizations. In instances where a medial side of midsole 202 needs to be customized and not a lateral side or vice versa, it may be preferred to utilize a midsole 202 with lateral midsole piece 214 and medial midsole piece 216, as described above. As an alternative to, or in addition to, modifying midsole 202, inserts may be placed between midsole 202 and plate 300, as discussed in more detail below, or posts may be utilized to connect midsole 202 to upper 400.
  • midsole 202 may undulate with peaks 204 and troughs 206 only in a forefoot region. In other embodiments, as shown for example in FIGs. 16-18 , midsole 202 may undulate with peaks 204 and troughs 206 only in a heel region. In other embodiments, as shown for example in FIG. 19 , midsole 202 may also have one or more rows 334 that undulate with peaks 204 and troughs 206 in a medial to lateral direction. In some embodiments, peaks 204 and troughs 206 of each row 334 may be aligned.
  • undulating sole 200 may be manufactured to provide a different and unique ride and/or feel to article of footwear 100, while also providing a unique aesthetic appeal and improved cushioning and support.
  • embodiments of the present invention may include one or more inserts 500 to provide the desired stiffness and/or cushioning properties of midsole 202.
  • one or more inserts 500 may be included to make all or a portion of midsole 202 more stiff. In this manner, for example, insert 500 may help in limiting pronation or supination of the foot of the wearer.
  • insert 500 may include one or more support elements 510 connected by connecting members 520.
  • support element 510 includes a support surface 511 that is curved such that the support element 510 is substantially u-shaped, as shown, for example, in FIG. 22 .
  • support element 510 may include a proximate end 512 and a distal end 514. The proximate end 512 may be rounded and the height of support element 510 may gradually decrease from proximate end 512 to distal end 514.
  • Each support element 510 may be connected to an adjacent support element 510 by a connecting member 520.
  • connecting member 520 extends from the distal end 514 of one support element 510 to the distal end 514 of an adjacent support element 510.
  • connecting member 520 may extend from the distal end 514 of a first support element 510 to the proximate end 512 of an adjacent support element.
  • the connecting member 520 may extend from any point along the length of a first support element 510 to any point along the length of an adjacent support element 510.
  • Connecting member 520 may connect support elements that are not adjacent.
  • support elements 510 disposed at an end of the insert 500 may include a connecting member 522 that does not connect to an adjacent support element.
  • insert 500 may include a connecting member 522 that is not connected at one end.
  • insert 500 may not include connecting members 522 extending from end support elements.
  • insert 500 may include five (5) connected support elements 510.
  • other combinations of support elements 510 and connecting members 520 for an insert 500 may be used to provide the desired stiffness and/or cushioning of midsole 202.
  • insert 500 may be disposed between midsole 202 and plate 300 and may be coupled to midsole 202.
  • each support element 510 of insert 500 may be disposed within a gap 210 of midsole 202.
  • each of the support elements 510 may be disposed in a gap 210.
  • the support surface 511 of support element 510 is preferably contoured to fit snugly within gap 210 along an interior surface 211 of the gap 210.
  • the support surface 211 may cover all or a portion of the interior surface 211 of the gap 210 where the support element 510 is located.
  • support surface 511 may extend from the bottom 207 of gap 210 partially (e.g., half way) up interior wall 209 or to the top of interior wall 209.
  • support element 510 may not extend completely into gap 210 such that it does not contact the bottom 207 of gap 210.
  • the support surface 511 may cover only a portion of interior wall 209 between bottom 207 and the top of interior wall 209.
  • support surface 511 is curved such that the support element 510 is substantially u-shaped. In other embodiments, support surface 511 may be square, v-shaped, omega-shaped, or otherwise shaped to fit within gap 210 or other portion of midsole 202. In one embodiment, support element 510 may be secured within gap 210 by adhesive. In other embodiments, adhesive may not be used and the snug fit of the element within the gap may keep it in place.
  • insert 500 may be generally disposed in the arch region of midsole 202. In other embodiments, insert 500 may be disposed in the forefoot region, the heel region, and/or along the entire length of midsole 202. Generally, insert 500 may be positioned to provide the desired stiffness and/or cushioning of midsole 202.
  • the size of support element 510 also may be adapted such that support element 510 fits within gap 210.
  • the size of support elements 510 may likewise vary along insert 500.
  • gaps 210 may be deeper in the heel region of midsole 202, and become more shallow toward the forefoot region of midsole 202.
  • support elements 510 may be larger in the rearward portion of insert 500 and become smaller toward the forward portion of insert 500.
  • forefoot end support element 516 may be smaller than rearfoot end support element 518.
  • Insert 500 may be made of a rigid or flexible material to provide the desired stiffness properties of the midsole 202.
  • the insert 500 comprises TPU.
  • suitable materials including but not limited to, elastomers, thermoplastic elastomers (TPE), foam-like plastics (e.g., Pebax® foam and/or Hytrel® foam), gel-like plastics, foam, metal, or other suitable materials and combinations thereof.
  • insert 500 may be injection molded as a unitary piece.
  • support elements 510 may be molded separately and then attached.
  • one support element 510 may be made of a different material than another support element 510.
  • a first support element 510 may be made of a stiffer material than a second support element 510 to provide the desired stiffness or cushioning properties to different areas of midsole 202.
  • insert 500 may be co-molded with midsole 202.
  • insert 500 may be molded and midsole 202 may be molded under insert 500, or insert 500 may be molded directly on midsole 202. In one embodiment, as shown for example in FIG.
  • support elements 510 may be formed as part of midsole 202 to form a unitary and monolithic structure.
  • Support elements 510 may be formed in gaps 212, as shown, and/or in gaps 210.
  • two support elements 510 may be formed in the rearmost gap 212 and one support element may be formed in the next gap 212. It will be appreciated that support elements 510 may be formed in other gaps in various combinations.
  • midsole 202 may be molded around insert 500 such that insert 500 is embedded in the midsole.
  • insert 500 may be integral with plate 300. The plate 300 may extend partially or completely into support element 510.
  • one or more support elements 510 of insert 500 may extend across a portion of the width of the midsole 202 to provide desired stiffness properties to a portion of midsole 202.
  • support elements 510 may extend inwardly from the medial side of the midsole 202 across a portion of the width of midsole 202.
  • support element 510 may provide support to midsole 202 in this area and may limit compression of the midsole.
  • support element 510 may limit compression of the walls 208 around the area of the support element.
  • insert 500 may impart additional stiffness to the medial side of midsole 202 and may limit, for example, supination of the foot.
  • the support elements may extend inwardly from the lateral side of the midsole 202 across a portion of the midsole. In this manner, insert 500 may impart additional stiffness to the lateral side of midsole 202 and may, for example, limit pronation of the foot. In still other embodiments, the insert 500 may extend substantially across the entire width of the midsole 202 such that it may impart desired stiffness or cushioning characteristics across the width of the midsole. In some embodiments, insert 500 may include one or more support elements 510 that extend only across a portion of the width of midsole 202 and one or more support elements 510 that extend across the entire width of midsole 202.
  • connecting member 520 may be substantially flat such that it does not interfere with placement of plate 300 on midsole 202.
  • a groove may be formed in the top of midsole 202 to receive connecting member 520 such that connecting member 520 is flush with the top of midsole 202.
  • connecting members 520 of insert 500 may collectively form a generally curved shape from the perimeter of midsole 202 through an interior portion of the midsole 202. In one embodiment, connecting members 520 may be positioned to provide additional support to the insert 500.
  • all or a portion of the insert 500 may be visible from the side of footwear 100.
  • proximate end 512 of one or more support elements 510 may be visible through gaps 210.
  • insert 500 may not be visible.
  • insert 500 may include two (2) support elements 510.
  • the support elements 510 may be sized for use in the heel portion of midsole 202.
  • insert 500 may include two (2) support elements 510 generally sized for use in the forefoot portion of the midsole 202.
  • insert 500 may include one support element.
  • insert 500 may comprise a single support element 510 without connecting members 520. As shown in FIGs.
  • insert 500 may include four (4) support elements 510 that extend substantially across the width of the midsole 202.
  • Connecting members 520 may connect adjacent support elements 520 at the middle of the support element.
  • the number of support elements 510 may be the same as the number of gaps 210 in midsole 202.
  • insert 500 may be disposed on the underside of midsole 202.
  • Each support element 510 of insert 500 may be disposed within gap 212 of midsole 202.
  • the support elements 510 may be sized and shaped accordingly.
  • insert 500 may include one or more support elements 510 adapted to fit snugly on peak 204.
  • insert 500 may be permanently disposed in midsole 202 during manufacture of footwear 100.
  • insert 500 may be readily removable from midsole 202.
  • a support element 510 may be inserted into gap 210 between midsole 202 and plate 300 from the side of footwear 100.
  • the support element 510 may include a tab that may be pulled to subsequently remove the support element 510 from gap 210.
  • inserts 500 or support elements 510 may be sold "after-market", and a user may continually customize the stiffness or cushioning properties of footwear 100 depending on desired uses, aging of the shoe, or other conditions of use.
  • one or more support elements 510 may be solid elements.
  • a support element 510 may be completely solid, as shown by support element 513, or may be partially solid, as shown by support elements 515 and 517.
  • the solid support elements may be filled with the same material as the support surface 511 and formed as a unitary piece, or may be filled with a different material, such as, for example, foam or other suitable material.
  • support element 510 may be filled with a portion of plate 300.
  • the solid support elements may be adapted to provide additional support to midsole 202.
  • support element 510 may be hollow, fluid filled, or filled with pressurized or ambient air.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (7)

  1. Un article chaussant (100) comprenant :
    une semelle ondulée en mousse (200) comprenant :
    une pluralité de crêtes espacées (204), au moins une paire de crêtes adjacentes (204) définissant un intervalle (210) vide de matière entre crêtes adjacentes (204) ; et
    une pluralité de gouttières espacées (206), au moins une gouttière (206) étant apte à venir en contact avec le sol et au moins une paire de gouttières adjacentes (206) définissant un intervalle (212) vide de matière entre gouttières adjacentes (206),
    caractérisé en ce que
    les intervalles (212) vides de matière entre gouttières adjacentes (206) sont substantiellement en forme d'oméga de telle sorte que chacun desdits intervalles (212) vides de matière entre gouttières adjacentes (206) présente une partie haute arrondie et une partie de fond étroite, et où une distance (d1) entre les surfaces des deux parois (208) formant, et étant tournées vers, un intervalle respectif (212) vide de matière entre gouttières adjacentes (206) est plus courte au fond de l'intervalle respectif (212) qu'une distance (d2) dans une partie médiane de l'intervalle respectif (212).
  2. L'article chaussant de la revendication 1, dans lequel la pluralité de crêtes espacées (204) s'étendent le long d'une largeur de la semelle (200) dans une direction du côté vers le milieu et dans lequel la pluralité de gouttières espacées (206) s'étendent le long de la largeur de la semelle (200) dans la direction du côté vers le milieu.
  3. L'article chaussant de la revendication 1, dans lequel la pluralité de crêtes espacées (204) s'étendent suivant une longueur de la semelle (200) dans une direction de l'orteil vers le talon et dans lequel la pluralité de gouttières espacées (206) s'étendent suivant la longueur de la semelle (200) dans la direction de l'orteil vers le talon.
  4. L'article chaussant de la revendication 1, comprenant en outre une plaque (300) solidarisée à la pluralité de crêtes espacées (204).
  5. L'article chaussant de la revendication 1, dans lequel la semelle ondulée en mousse (200) est une semelle intermédiaire ondulée en mousse (202) qui comprend en outre :
    un premier côté et un second côté ;
    la pluralité de crêtes espacées (204) s'étendant suivant une largeur de la semelle intermédiaire (202) entre le premier et le second côté, et la pluralité de gouttières espacées (206) s'étendant suivant une largeur de la semelle intermédiaire (202) entre le premier et le second côté ; et en outre
    l'intervalle (210) vide de matière entre crêtes adjacentes (204) s'étendant suivant la largeur de la semelle intermédiaire (202) avec une extrémité au niveau du premier côté et une autre extrémité au niveau du second côté, et l'intervalle (212) vide de matière entre gouttières adjacentes (206) s'étendant suivant la largeur de la semelle intermédiaire (202) avec une extrémité au niveau du premier côté et une autre extrémité au niveau du second côté.
  6. L'article chaussant de la revendication 5, dans lequel la semelle intermédiaire ondulée en mousse (202) comprend deux pièces (214, 216), chaque pièce comprenant :
    un premier côté ;
    un second côté ;
    une pluralité de crêtes espacées s'étendant suivant une largeur de la pièce entre le premier et le second côté de la pièce ; et
    une pluralité de gouttières espacées s'étendant suivant une largeur de la pièce entre le premier et le second côté de la pièce.
  7. L'article chaussant de la revendication 6, dans lequel les deux pièces (214, 216) de la semelle intermédiaire comprennent une pièce latérale (214) et une pièce médiane (216).
EP16188094.3A 2009-07-21 2010-07-21 Article de chaussure a semelle ondulee Active EP3146862B8 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21185399.9A EP3912509A3 (fr) 2009-07-21 2010-07-21 Article chaussant comprenant une semelle ondulée
EP19196198.6A EP3603437B1 (fr) 2009-07-21 2010-07-21 Article chaussant comprenant une semelle ondulée

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12/506,957 US9392843B2 (en) 2009-07-21 2009-07-21 Article of footwear having an undulating sole
US12/748,246 US9015962B2 (en) 2010-03-26 2010-03-26 Article of footwear with support element
US12/832,464 US9433256B2 (en) 2009-07-21 2010-07-08 Article of footwear and methods of making same
EP10170301.5A EP2277402B1 (fr) 2009-07-21 2010-07-21 Chaussure à semelle ondulée

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP10170301.5A Division EP2277402B1 (fr) 2009-07-21 2010-07-21 Chaussure à semelle ondulée
EP10170301.5A Division-Into EP2277402B1 (fr) 2009-07-21 2010-07-21 Chaussure à semelle ondulée

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP21185399.9A Division EP3912509A3 (fr) 2009-07-21 2010-07-21 Article chaussant comprenant une semelle ondulée
EP19196198.6A Division EP3603437B1 (fr) 2009-07-21 2010-07-21 Article chaussant comprenant une semelle ondulée
EP19196198.6A Division-Into EP3603437B1 (fr) 2009-07-21 2010-07-21 Article chaussant comprenant une semelle ondulée

Publications (4)

Publication Number Publication Date
EP3146862A2 EP3146862A2 (fr) 2017-03-29
EP3146862A3 EP3146862A3 (fr) 2017-07-05
EP3146862B1 true EP3146862B1 (fr) 2019-09-18
EP3146862B8 EP3146862B8 (fr) 2019-10-23

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ID=43066003

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EP10170301.5A Active EP2277402B1 (fr) 2009-07-21 2010-07-21 Chaussure à semelle ondulée
EP16188094.3A Active EP3146862B8 (fr) 2009-07-21 2010-07-21 Article de chaussure a semelle ondulee
EP19196198.6A Active EP3603437B1 (fr) 2009-07-21 2010-07-21 Article chaussant comprenant une semelle ondulée
EP21185399.9A Pending EP3912509A3 (fr) 2009-07-21 2010-07-21 Article chaussant comprenant une semelle ondulée

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EP19196198.6A Active EP3603437B1 (fr) 2009-07-21 2010-07-21 Article chaussant comprenant une semelle ondulée
EP21185399.9A Pending EP3912509A3 (fr) 2009-07-21 2010-07-21 Article chaussant comprenant une semelle ondulée

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EP (4) EP2277402B1 (fr)
CN (1) CN101961158B (fr)
BR (1) BRPI1013455A2 (fr)

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Publication number Publication date
EP3912509A2 (fr) 2021-11-24
EP3603437B1 (fr) 2021-07-14
EP3912509A3 (fr) 2022-01-26
EP2277402A2 (fr) 2011-01-26
EP3146862A2 (fr) 2017-03-29
BRPI1013455A2 (pt) 2015-10-20
CN101961158A (zh) 2011-02-02
EP3603437A1 (fr) 2020-02-05
EP2277402A3 (fr) 2015-03-11
EP2277402B1 (fr) 2016-10-19
EP3146862A3 (fr) 2017-07-05
CN101961158B (zh) 2017-04-12
EP3146862B8 (fr) 2019-10-23

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