(19)
(11)EP 2 499 926 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
28.03.2018 Bulletin 2018/13

(21)Application number: 12156451.2

(22)Date of filing:  22.02.2012
(51)International Patent Classification (IPC): 
A43B 5/00(2006.01)
A43B 13/22(2006.01)

(54)

Article of footwear comprising a sole structure

Schuhartikel mit Sohlenstruktur

Chaussure comprenant une structure de semelle


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 16.03.2011 US 201113049422

(43)Date of publication of application:
19.09.2012 Bulletin 2012/38

(73)Proprietor: NIKE Innovate C.V.
Beaverton, OR 97005-6453 (US)

(72)Inventors:
  • Madore, Carl
    Beaverton, OR 97005-6453 (US)
  • Mueller, Nicole
    Beaverton, OR 97005-6453 (US)

(74)Representative: Tombling, Adrian George 
Withers & Rogers LLP 4 More London Riverside
London SE1 2AU
London SE1 2AU (GB)


(56)References cited: : 
US-A- 1 560 995
US-A- 5 806 209
US-A1- 2002 178 618
US-A1- 2007 199 211
US-A- 4 667 425
US-A- 6 161 315
US-A1- 2003 131 503
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    BACKGROUND



    [0001] "Outsole" is a term often used to describe bottom portions of a shoe sole structure. An outsole, or various parts of the outsole, will typically contact the ground when a shoe wearer stands or when the wearer walks or otherwise moves relative to the ground. In sports and other activities, a person's feet may experience a wide range of motion and/or support that person's weight during a range of different body motions. A sole structure designed to provide support or otherwise enhance performance during one type of motion may not be ideal for a different type of motion that a shoe wearer might also perform. For instance, some types of outsole elements may help increase traction when a shoe wearer walks or otherwise traverses various types of surfaces. However, that same shoe may also be worn when performing other activities that do not require that same type of propulsive effort. During those other activities it may be more desirable to stabilize the wearer foot during body motions that differ from motions experienced while walking.

    [0002] Golf is one example of an activity in which a person's feet repeatedly experience different types of motions and body positions. A golfer may spend large amounts of time walking. Much of that walking may be over uneven surfaces and/or surfaces that might be slippery. It may thus be desirable to include outsole elements to increase traction when moving across such surfaces. However, the manner in which a golfer swings a club is an important aspect of golf. Proper foot placement and support are important during a golf swing. Because of differences between walking motions and swing motions, sole structures that increase traction while walking a golf course may not be the best structures to stabilize a wearer's feet while swinging a golf club.

    [0003] U.S. Patent Number 4,667,425 (Effler et al.) discloses a baseball shoe comprising a sole structure, said sole structure including ridge traction elements each including a peripheral segment and a transverse segment.

    [0004] U.S. Patent Application Publication Number 2007/0199211 A1 (Campbell) discloses an article of footwear comprising a sole structure, said sole structure including flexure zones and ridge traction elements, each ridge traction element including a peripheral segment and two transverse segments. A portion of each transverse segment has a height greater than the height of the peripheral segment.

    SUMMARY



    [0005] The invention relates to an article of footwear as specified in independent claim 1. Preferred embodiments are specified in the dependent claims.

    [0006] In at least some embodiments, a sole structure includes a ridge traction element. The ridge traction element may include a peripheral segment and an associated transverse segment. The peripheral segment may be proximate and generally aligned with a medial or lateral edge of the sole structure. The transverse segment may extend from the associated peripheral segment and across the sole structure, and may have a height that decreases over the length of the transverse segment. The sole structure can include multiple ridge traction elements, which multiple elements can be separated by one or more flexure zones.

    [0007] In some embodiments, a sole structure may include additional types of traction elements, some or all of which may be located in regions of the sole structure at least partially defined by one or more ridge tractions elements. In certain embodiments, those additional traction element types can include one or more of tab traction elements, stud tractions elements and/or concave traction element clusters.

    BRIEF DESCRIPTION OF THE DRAWINGS



    [0008] Some embodiments are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar elements.

    FIG. 1 is a lateral side view of an article of footwear according to some embodiments.

    FIG. 2 is a medial bottom perspective view of the shoe from FIG. 1.

    FIG. 3 is an enlarged medial bottom perspective view showing a front portion of the sole structure of the shoe from FIG. 1.

    FIG. 4 is an enlarged medial bottom perspective view showing a rear portion of the sole structure of the shoe from FIG. 1.

    FIG. 5A is a cross-sectional view taken from the location indicated in FIG. 3.

    FIG. 5B is an enlarged plan view of a concave traction element cluster from the sole structure of the shoe of FIG. 1.

    FIG. 6 is a lateral side view of an article of footwear not according to the invention.

    FIG. 7 is a medial bottom perspective view of the shoe from FIG. 6.


    DETAILED DESCRIPTION



    [0009] FIG. 1 is a lateral side view of a shoe 101 according to some embodiments. Shoe 101 can be a shoe intended for wear by a golfer. Embodiments can also include footwear for use in other athletic and non-athletic activities. Shoe 101 includes a sole structure 102. Although various specific features of sole structure 102 are described below, such description merely provides examples of features according to certain embodiments.

    [0010] Sole structure 102 includes a outsole 103 and a midsole 104. These and other components of sole structure 102 are further described below. In other embodiments, a sole structure may only include an outsole or might otherwise lack a separate midsole. In still other embodiments, a sole structure could include a support plate and/or other component(s). Shoe 101 also includes an upper 105. Shoes having sole structures according to various embodiments can include various types of uppers. Because the details of such uppers are not pertinent to understanding sole structures disclosed herein, upper 105 is shown generically in FIG. 1 using a broken line. Elements 106, 107 and 108 of outsole 103 are also discussed below.

    [0011] FIG. 2 is a medial bottom perspective view of shoe 101 showing details of outsole 103. The locations of certain regions in sole structure 102, and in sole structures according to other embodiments, may be described using references to human foot anatomy. Specifically, various regions of a described sole structure may be identified using foot bones of a person wearing a shoe that includes the described sole structure. Identifications in this manner assume that the shoe is properly sized for the wearing foot.

    [0012] When referring to an outsole or other component of a sole structure, a "forefoot" region will generally lie under or near the metatarsal and phalangeal bones of a shoe wearer's foot and may extend beyond the wearer's toes to the frontmost portion of the shoe. A forefoot region may extend beyond the medial or lateral peripheral edge of the wearer's foot. A "midfoot" region will generally lie under or near the cuboid, navicular, medial cuneiform, intermediate cuneiform and lateral cuneiform bones of the wearer's foot. A midfoot region may also extend beyond the medial or lateral peripheral edge of the wearer's foot. A "hindfoot" region of a sole structure extends from the midfoot region and under/near the wearer calcaneus (heel bone), may extend to the rearmost portion of the shoe, and may also extend beyond the medial or lateral peripheral edge of the wearer's foot. One or more of the above-described regions may overlap, and description of a component by reference to a particular anatomical region does not require that the component cover that entire anatomical region. For example, and as discussed in more detail below in connection with FIG. 6, a forefoot region of an outsole according to some embodiments may include an opening exposing a portion of a midsole.

    [0013] Returning to FIG. 2, outsole 103 covers the entire bottom surface of shoe 101. In other embodiments, and in the example discussed in connection with FIGS. 6 and 7, which does not form part of the invention, an outsole may not cover the entire bottom surface and may include openings that expose a midsole or other shoe component. Outsole 103 includes multiple flexure zones 201, 202, 203 and 204. Each of these flexure zones comprises a region of outsole 103 that is more flexible than adjacent regions of outsole 103. In the embodiment of outsole 103, flexure zones 201-204 are regions in which the material of outsole 103 has been thinned, and in which there are no traction elements present. In other embodiments, a flexure zone may be formed in some other manner and/or include traction elements.

    [0014] Forefoot flexure zone 201 extends across outsole 103 in a medial-lateral direction. A portion of zone 201 is approximately located under the first interphalangeal joint and under the second proximal interphalangeal joint. Forefoot flexure zone 202 also extends across outsole 103 in medial-lateral direction, but is closer to the ball of the foot. Zone 202 is approximately located under the proximal ends of the proximal phalangeal bones. Longitudinal flexure zone 203 extends in a front to rear direction in the forefoot and midfoot regions before turning toward the medial side. Flexure zone 203 approximately lies under the space separating the first phalangeal bones and first metatarsal distal end from the second phalangeal bones and second metatarsal distal end. Hindfoot flexure zone 204 extends from the rear of outsole 103, approximately centered between the lateral and medial sides and under the calcaneus, and turns toward the lateral side.

    [0015] In addition to flexure zones, outsole 103 includes multiple traction elements of various types. These traction elements extend outward from one or more base surfaces of outsole 103. When outsole 103 (or a portion thereof) contacts the ground, the traction elements can penetrate into grass, sand or other ground material so as to increase traction and enhance stability of the shoe wearer foot. As explained in more detail below, different traction element types are configured to increase traction and foot stability under different conditions. Outsole 103 includes ridge traction elements, tab traction elements, stud traction elements, and concave traction element clusters. Although all of these traction elements are visible in FIG. 2, only ridge traction elements 211, 212, 213, 214, 215, 216 and 217 are marked. So as to avoid confusing FIG. 2 by including an excessive number of lead lines and reference characters, other types of traction elements (and additional details of ridge traction elements 211-217) will be identified in FIGS. 3 and 4.

    [0016] In the embodiment of outsole 103, each of ridge traction elements 211-217 is a generally continuous, outwardly-extending, elongated protrusion from a base surface of outsole 3. For example, ridge traction elements 214-216 respectively extend outward from smooth base surfaces 224-226. Ridge traction elements 211-213 and 217 respectively extend outward from grooved base surfaces 221-223 and 227. Each of ridge traction elements 211-217 also includes multiple segments. Some segment ends are joined to ends of other segments. Other segment ends terminate in free ends.

    [0017] FIG. 3 is an enlarged medial bottom perspective view showing a front portion of outsole 103. Ridge traction element 211 includes a peripheral segment 301 that is near and generally parallel to a portion of the lateral outer edge of outsole 3. Ridge traction element 211 also includes a transverse segment 302. Transverse segment 302, a lateral end of which is joined to a forward end of peripheral segment 301, extends at an angle from peripheral segment 301 and toward the medial side of outsole 103. Segments 301 and 302 respectively terminate in free ends 304 and 303. An interior region partially bounded by the medial side of segment 301 and the rear side of segment 302 includes six tab traction elements 346; tab traction elements are discussed below. Ridge traction element 212 includes a peripheral segment 308 near and generally parallel to another part of the lateral edge of outsole 103, a transverse segment 309 extending at an angle from peripheral segment 308 toward the medial side of outsole 103, and free ends 310 and 311. An interior region partially bounded by the medial side of segment 308 and the forward side of segment 309 includes nine tab traction elements 346.

    [0018] Ridge traction elements 214 and 215 are respectively similar to ridge traction elements 211 and 212, but are instead located on the medial side of outsole 103. Ridge traction element 214 includes a peripheral segment 315 near and generally parallel to a part of the medial edge of outsole 103. A transverse segment 316 extends at an angle from peripheral segment 315 toward the lateral side of outsole 103. Free ends 317 and 318 respectively terminate segments 316 and 315. Five stud traction elements 347 are located in the interior region partially bounded by the lateral side of segment 315 and the rear side of segment 317. Stud traction elements are discussed below.

    [0019] Ridge traction element 215 includes a peripheral segment 322 near and generally parallel to another part of the medial edge of outsole 102, a transverse segment 323 extending at an angle from peripheral segment 322 toward the lateral side of outsole 103, and free ends 324 and 325. A concave traction element cluster 350 is located in the interior region partially bounded by the lateral side of segment 322 and the forward side of segment 323. Concave traction element clusters are discussed below.

    [0020] Each of ridge traction elements 213 and 216 includes a second transverse segment. For example, ridge traction element 213 includes a peripheral segment 338 that is near and generally parallel to a part of the outsole 103 lateral edge. A first transverse segment 339 extends at an angle from a portion of segment 338 toward the medial side of outsole 103 and terminates in a free end 341. A second transverse segment 340 extends at an angle from a different portion of peripheral segment 338 toward the medial side of outsole 103 and terminates in a free end 342. Fifteen tab traction elements 346 are located in the interior region partially bounded by the rear side of segment 339, the medial side of segment 338, and the forward side of segment 340. Ridge traction element 216 includes a peripheral segment 329 that is near and generally parallel to a part of the outsole 103 medial edge, a first transverse segment 330 extending at an angle from peripheral segment 329 toward the lateral side of outsole 103, a second transverse segment 331 extending at an angle from peripheral segment 329 toward the lateral side of outsole 103, and free ends 332 and 333. A concave traction element cluster 360 is located in the interior region partially bounded by the rear side of segment 330, the lateral side of segment 329, and the forward side of segment 331.

    [0021] FIG. 4 is an enlarged medial bottom perspective view showing a rear portion of outsole 103. Ridge traction element 217, located in the hindfoot region of outsole 103, includes two peripheral segments. A first peripheral segment 402 is near and generally parallel to a first part of the outsole 103 medial edge in the hindfoot region, and includes a free end 404. A second peripheral segment 401 is near and generally parallel to a second part of the outsole 103 medial edge in the hindfoot region and is connected to segment 402. A transverse segment 403 extends at an angle from a different part of segment 401 toward the lateral side of outsole 103 and terminates in a free end 405. Seventeen tab traction elements 346 are located in the interior region partially bounded by segments 401-403.

    [0022] Each of peripheral segments 301, 308, 338, 315, 322, 329 and 401 is positioned so as to be located near or just outside the outer periphery of a wearer's foot. As explained in further detail below, this helps to stabilize the wearer's foot during a golf swing. In the embodiment of outsole 103, for example, peripheral segment 338 is located laterally of the distal half of the fifth metatarsal. Peripheral segments 308 and 301 are located laterally of the fifth, fourth and third toes. In the embodiment of outsole 103, each of peripheral segments 301, 308, 338, 315, 322, 329 and 401 is slightly inside of the outer edge of outsole 103. In other embodiments, one or more peripheral segments could be flush with (or form a part of) an outsole outer edge.

    [0023] Each of transverse segments 302, 309, 339, 340, 316, 323, 330, 331 and 403 has a height that decreases along the length of the segment toward the interior of outsole 103. In the embodiment of outsole 103, this height decrease takes the form of a relatively linear taper. This can be seen more clearly in FIG. 5A. FIG. 5A is a cross-sectional view taken from the location indicated in FIG. 3. Tab elements 346 are shown with broken lines in FIG. 5A. As shown in FIG. 5A, transverse segment 339 tapers from a maximum height at its junction with peripheral segment 338 to a minimum height at free end 341. Transverse segments 302, 309, 340, 316, 323, 330, 331 and 403 taper in a similar manner, but have varying lengths.

    [0024] In the embodiment of outsole 103, and as also seen in FIG. 5A, peripheral segment 338 of ridge traction elements 213 has a generally triangular cross-section. Peripheral segments 301, 308, 315, 322, 329 and 401 have similar triangular cross-sections. Transverse segments 302, 309, 339, 346, 316, 323, 330, 331 and 403 and peripheral segment 402 also have triangular cross-sections. However, the cross-section of each of segments 302, 309, 339, 346, 316, 323, 330, 331, 403 and 402 may be narrower than the cross-section of the associated peripheral segment from which it extends (e.g., transverse segments 339 and 340 may have narrower cross-sections and/or steeper side walls than associated peripheral segment 338). The triangular cross-sections of ridge traction elements 211-217 help those ridge traction elements to more easily penetrate a ground surface. Ridge traction elements according to various embodiments could have other types of triangular cross-sections. For example, a ridge traction element could have a cross section in the shape of a right triangle or other type of non-isosceles triangle. The cross-section of a ridge traction element need not be triangular. A cross-section could also vary along the length of a ridge traction element segment.

    [0025] So as not to interfere with flexibility afforded by flexure zones 201-204, no segments of ridge traction elements 211-217 cross any of flexure zones 201-204.

    [0026] In addition to ridge traction elements, outsole 3 includes numerous tab traction elements 346. In the embodiment of outsole 103, and as indicated in FIG. 3, six tab traction elements 346 are located in the region partially bounded by ridge traction element 211, nine tab traction elements 346 are located in the region partially bounded by ridge traction element 212, and fifteen tab traction elements 346 are located in the region partially bounded by ridge traction element 213. As indicated in FIG. 4, seventeen tab traction elements 346 are located in the region partially bounded by ridge traction element 217.

    [0027] Although individual tab traction elements 346 may vary somewhat in size and shape, each has an average length along a length axis that is greater than its width along a width axis. The length axes of the forefoot tab traction elements 346 in the regions partially bounded by ridge traction elements 211-213 generally extend across outsole 103 in a medial-lateral direction. The length axes of hind- and midfoot tab traction elements 346 in the region partially bounded by ridge traction element 217 also extend across outsole 103 in a medial-lateral direction, but are positioned at angles that are more diagonal relative to a longitudinal axis of outsole 103. These tab traction elements 346 in the region partially bounded by ridge traction element 217 generally extend in a rear medial to lateral forward direction so as to help counteract twisting motion of a foot as a wearer of shoe 101 swings a golf club.

    [0028] Tab traction elements may also have at least one end that is rounded or otherwise sloped. As seen most clearly in FIG. 5A, tab traction elements 346 have a shape similar to that of a cresting wave. The rounded sides 501 of the forefoot tab traction elements face toward the medial side of outsole 103. As discussed in more detail below, the sloped sides 501 facilitate medial-to-lateral rolling of the foot. Straight sides 502 of these forefoot tab traction elements 346 face toward the lateral side. Spaces 503 separate tab traction elements. As seen in FIG. 4, the rounded sides of hind- and midfoot tab traction elements 346 face toward the lateral side of outsole 103.

    [0029] Outsole 103 further includes numerous stud traction elements 347. In the embodiment of outsole 103, five stud traction elements 347 are located in the region partially bounded by ridge traction element 214. Five more stud traction elements 347 are located to the rear of transverse segment 331, and eight additional stud traction elements 347 are located to the rear of transverse segment 340. Unlike tab traction elements 346, each of stud traction elements 347 has a length that is approximately the same as its width.

    [0030] Outsole 103 also includes three concave traction element clusters (or "clusters") 350, 360 and 410. The clusters may be removably mounted, or may be permanently incorporated into the sole structure (e.g., molded into the outsole). FIG. 5B is an enlarged plan view of cluster 360. Cluster 360 includes a multi-armed cleat 561. Cleat 561 includes four arms 511-514 radiating outward from a center 525. Medial rear arm 512 curves upward and includes a flattened peak 516. Medial forward arm 513 curves upward and includes a flattened peak 517. In a similar manner, lateral rear arm 511 and lateral forward arm 514 curve upward and respectively include flattened peaks 515 and 518. Arms 511 and 513 form a line that is somewhat longer than the line formed by arms 512 and 514.

    [0031] Cluster 360 also includes four blade cleats 562, 563, 564 and 565. Lateral blade cleat 562 includes a curved inner surface 526 that slopes upward to an edge peak 527. Rear blade cleat 563 includes a curved inner surface 528 that slopes upward to an edge peak 529. Medial blade cleat 564 includes a curved inner surface 530 that slopes upward to an edge peak 531. Forward blade cleat 565 includes a curved inner surface 532 that slopes upward to an edge peak 533.

    [0032] As can be appreciated from the foregoing description and from FIGS. 3 and 5B, the upwardly sloping surfaces of arms 511-514 and of surfaces 526, 528, 530 and 532 approximate a bowl-shaped structure. Peaks 527, 515, 529, 516, 531, 517, 533 and 518 approximate a rim of that bowl. The presence of blade cleats in the spaces between the peaks of a multi-arm cleat can help to increase traction and foot stability. The bowl-like configuration of cluster 360 allows force from a wearer's weight to be more evenly distributed, thereby reducing damage to putting greens and other surfaces. The shape of cluster 360 can utilize available outsole area more efficiently than a traditional round cleat element.

    [0033] Clusters 350 and 410 are similar to cluster 360. Each includes a four-armed cleat and four blade cleats in a configuration similar to that of cluster 360. The sizes of clusters 350 and 410 vary somewhat from that of cluster 360, and the orientation of cluster 410 is different from that of clusters 350 and 360. Specifically, the pairs of arms forming a longer line (e.g., arms 511 and 513 of cluster 360) in clusters 350 and 360 are oriented in a forward-medial to rearward-lateral direction. Conversely, the pair of arms forming a longer line of cluster 410 are oriented in a forward-lateral to rearward-medial direction. As with cluster 360, the shapes of clusters 350 and 410 can allow more efficient utilization of available outsole area.

    [0034] An outsole such as outsole 103 can offer several advantages during golf play. During a backswing, a player typically rolls the leading foot from the lateral side to the medial side and rolls the trailing foot from the medial side to the lateral side. During the downswing and follow-through, the trailing foot rolls from the lateral side to the medial side as the leading foot rolls from the medial side to the lateral side. Peripheral segments 301, 308 and 338 help to arrest foot roll to the lateral side. This can help stabilize the trailing foot at the top of the backswing and stabilize the leading foot during the downswing and follow-through. Peripheral segments 315, 322, 329, 402 and 401 help to arrest foot roll to the medial side. This can help stabilize the leading foot at the top of the backswing and stabilize the trailing foot during early portions of the downswing.

    [0035] Although arresting foot roll at the top of the backswing and at the conclusion of follow-through can be beneficial, it may be undesirable to impede foot roll between those two points in the swing motion. The inwardly-decreasing heights of the transverse segments allows the player foot to roll comfortably when appropriate, while still helping to reinforce and stiffen the peripheral segments. Flexure zones 203 and 204 also facilitate foot roll and increase comfort while the foot is rolling.

    [0036] Although the swing is a critical part of golf play, a golfer may spend a large amount of time walking. In some cases, the golfer may be required to walk on potentially slippery surfaces (e.g., a wet grass, sand, slopes and hills, etc.). Tab traction elements 346 provide propulsive traction to the wearer while walking. The sloped edges 501 of tab traction elements 346 can also facilitate beneficial rolling of the foot during a swing. Stud traction elements 347 may provide less propulsive traction than tab traction elements 346, but have a smaller cross section and allow easier penetration of a ground surface. Flexure zones 201 and 202 permit natural flexing of the foot while walking and increase comfort.

    [0037] Returning briefly to FIG. 1, outsole 103 further includes walls 107 and 108 that extend over portions of the lateral side of the wearer foot. Wall 107 is approximately located adjacent to the outside of the fifth toe. Wall 108 is approximately located adjacent to the outside of the fifth metatarsal-phalangeal joint. Walls 107 and 108 provide additional support to help arrest lateral motion during a swing. A toe cap 106 provides toe protection.

    [0038] Outsole 103 can be fabricated from any of various materials commonly used for athletic footwear outsoles. Such materials can include synthetic rubbers, "green" rubbers, thermoplastic polyurethane (TPU), etc. In some embodiments, higher durometer materials can be used for some or all traction elements and softer durometer materials can be used for other parts of the outsole. As also seen in FIG. 1, outsole 103 is bonded to a midsole 104. Midsole 104 (FIG. 1) can be formed from compressed ethylene vinyl acetate (EVA) foam (also known as "Phylon"), foamed TPU, or other materials.

    [0039] Other embodiments include numerous additional variations on the embodiment of outsole 103. The number, locations and arrangements of ridge traction elements can be varied. In some embodiments, for example, ridge traction elements are only included on the lateral or the medial side. The configuration of ridge traction elements could also be varied. For example, a peripheral edge of a ridge traction element could be curved. As examples, a ridge traction element could have a serrated edge, could include intermediate bosses or studs embedded in a segment, etc. The shapes, arrangements and number of tab traction elements and/or stud traction elements and/or concave traction element clusters could also be varied. Other types of traction elements could be included. One or more flexure zones could be omitted.

    [0040] FIG. 6 is a lateral side view of shoe 601 not according to the invention. Shoe 601, which can also be a shoe intended for wear by a golfer, includes a sole structure 602 having an outsole 603 and a midsole 604. Shoe 601 also includes an upper 605 which, for reasons similar to those indicated in connection with FIG. 1, is shown generically using a broken line. In some embodiments, shoe 101 of FIG. 1 may be a man's shoe and shoe 601 of FIG. 6 may be a woman's shoe.

    [0041] FIG. 7 is a medial bottom perspective view of shoe 601 showing details of outsole 603. Unlike outsole 103, outsole 603 does not cover the entire bottom surface of shoe 601. Notably, outsole 603 includes a slot 701 that extends longitudinally through the forefoot, turns to the medial side, and opens in the arch region. Midsole 604 is exposed by slot 701. Slot 701 creates a flexure zone in sole structure 602. Sole structure 602 also includes a flexure zone 702 (partially formed in outsole 603) that extends across sole structure 602 in a medial-lateral direction, and includes a portion approximately located under the first interphalangeal and second proximal interphalangeal joints. Flexure zone 703 (partially formed in outsole 603) also extends across sole structure 602 in medial-lateral direction, and is approximately located under the proximal ends of the proximal phalangeal bones. Flexure zones 702 and 703 include regions in which the material of outsole 603 has been thinned, and in which there are no traction elements present.

    [0042] Outsole 603 includes ridge traction elements 704, 705, 706 and 707. Ridge traction element 704 includes a peripheral segment 708, transverse segments 709 and 710, and free ends 711 and 712. Ridge traction element 705 includes a peripheral segment 715, transverse segments 716 and 717, and free ends 718 and 719. Ridge traction element 706 includes a peripheral segment 722, a transverse segment 723, and free ends 724 and 725. Ridge traction element 707 includes a peripheral segment 731, a transverse segment 732, and free ends 733 and 734. Peripheral segments 708, 715 and 722 are located near or just outside the outer periphery of a wearer's foot in the forefoot region. Peripheral segment 731 is located near or just outside the outer periphery of a wearer's foot in the hindfoot region. Each of transverse segments 709, 710, 716, 717, 723 and 732 extends across outsole 603 and has a height that tapers along the length of the segment toward the interior of outsole 603. The various segments of ridge traction elements 704-707 have triangular cross-sections similar to the cross-sections of the ridge traction elements of outsole 103.

    [0043] Ridge traction elements 704-707 operate, in a manner similar to ridge traction elements 211-213 of outsole 103, to arrest medial-to-lateral side foot roll. The inwardly-tapered configuration of the transverse segments of traction elements 704-707 allows the wearer foot to roll comfortably when appropriate, while still helping to reinforce and stiffen the peripheral segments.

    [0044] Outsole 603 further includes multiple tab traction elements 740. Similar to tab traction element 346 of outsole 103, tab tractions elements 740 provide propulsive traction to the wear while walking. Chamfered ends 741 of tab traction elements 740 can also facilitate beneficial rolling of the foot during a swing. In the example of outsole 603, tab traction elements are flatter and, in at least some cases, have a length-to-width ratio that is generally higher than the length-to-width ratio of tab traction elements 346 of outsole 103. Outsole 603 also includes stud traction elements 745 that are similar to stud traction elements 347 of outsole 103.

    [0045] Outsole 603 does not include concave traction element clusters such as clusters 350, 360 and 410 of outsole 103. Instead, outsole 603 includes five six-arm cleats 750, 751, 752, 753 and 754. These cleats 750-754 may have any desired construction or structure, and may be removably mounted or permanently incorporated into the sole structure.

    [0046] Returning to FIG. 6, outsole 603 further includes a wall 607 that extends over portion of the lateral side of the wearer foot. Wall 607 is approximately located in the midfoot region and provides additional support to help arrest lateral motion during a swing. A toe cap 606 provides toe protection.

    [0047] Like outsole 103, outsole 603 can be fabricated from any of various materials commonly used for athletic footwear outsoles (e.g., synthetic rubbers, "green" rubbers, TPU, etc.). As with outsole 103, higher durometer materials can be used for some or all traction elements and softer durometer materials can be used for other parts of the outsole. Outsole 603 can be bonded to midsole 604, with midsole 604 formed from compressed EVA, foamed TPU, or other materials. Other embodiments include numerous additional variations on the embodiment of outsole 603, including but not limited to variations such as were described in connection with outsole 103.


    Claims

    1. An article of footwear (101) comprising:

    a sole structure (102) including a flexure zone (201, 202) extending substantially across a forefoot region of the sole structure, the flexure zone forming a region of the sole structure more flexible than adjacent regions of the sole structure,

    a first ridge traction element (211-216), the first ridge traction element including a first peripheral segment (301, 308, 315, 322, 329, 338) proximate and generally parallel to one of a medial or lateral edge of the sole structure in the forefoot region, the first peripheral segment having a substantially constant height along its length, the first ridge traction element including a first transverse segment (302, 309, 316, 323, 331, 339, 340) extending across the sole structure away from and at an angle to the first peripheral segment and surrounded on both sides by adjacent portions of the sole structure, the first transverse segment joining the first peripheral segment at an end of the first peripheral segment, the first transverse segment terminating in a first free end (303, 310, 317, 325, 332, 333, 341, 342) without reaching the other of the medial or lateral edge, the first transverse segment having a height that decreases along its length as it extends away from the first peripheral segment, no portion of the first transverse segment having a height greater than the height of the first peripheral segment, and

    a second ridge traction element (211-216), the second ridge traction element including a second peripheral segment (301, 308, 315, 322, 329, 338) proximate and generally parallel to the one of the medial or lateral edge of the sole structure in the forefoot region, the second peripheral segment located forward of the first peripheral segment, the second peripheral segment having a substantially constant height along its length, the second ridge traction element including a second transverse segment (302, 309, 316, 323, 331, 339, 340) extending away from and at an angle to the second peripheral segment and surrounded on both sides by adjacent portions of sole structure, the second transverse segment joining the second peripheral segment at an end of the second peripheral segment, the second transverse segment terminating in a second free end (303, 310, 317, 325, 332, 333, 341, 342) without reaching the other of the medial or lateral edge, the second transverse segment having a height that decreases along its length as it extends away from the second peripheral segment, no portion of the second transverse segment having a height greater than the height of the second peripheral segment, the flexure zone being a transverse flexure zone, the first and second ridge traction elements being separated by the flexure zone.


     
    2. The article of footwear of claim 1, wherein each of the peripheral segments is positioned in a location that is near or outside an outer periphery of a wearer foot when the article is worn.
     
    3. The article of footwear of claim 1, wherein:

    (1) the flexure zone is a flexure zone extending substantially across the forefoot region in a medial-lateral direction; and

    (2) the first and second ridge traction elements are located on one of a medial or lateral side of the sole structure and are separated by the flexure zone.


     
    4. The article of footwear of claim 3, further comprising
    a third ridge traction element including a peripheral segment proximate an edge of the sole structure in the forefoot region and an associated transverse segment extending away from and at an angle to the peripheral segment, and
    a second flexure zone extending substantially across the forefoot region, the second flexure zone forming a region of the sole structure more flexible than regions of the sole structure adjacent to the second flexure zone, and wherein the second and third ridge traction elements are separated by the second flexure zone.
     
    5. The article of footwear of claim 4, wherein
    the first, second and third ridge traction elements are located on a lateral side of the sole structure, and

    the second flexure zone is also a transverse flexure zone extending substantially across the forefoot region in a medial-lateral direction.


     
    6. The article of footwear of claim 1, wherein
    the first ridge traction element at least partially bounds a first region of the outsole,
    the second ridge traction element at least partially bounds a second region of the outsole, and
    each of the first and second regions includes additional traction elements.
     
    7. The article of footwear of claim 6, wherein
    at least a portion of the additional traction elements are tab traction elements,
    each of the tab traction elements has a length along a length axis greater than a width across a width axis, and
    the length axis of each of the tab traction elements is oriented in a medial-lateral direction across the outsole.
     
    8. The article of footwear of claim 7, wherein each of the tab traction elements includes a sloped end positioned to accommodate rolling of a wearer foot in a medial-to-lateral direction.
     
    9. The article of footwear of claim 1, wherein each of the first and second peripheral segments is proximate the lateral edge of the sole structure in the forefoot region, and wherein the sole structure includes a third ridge traction element, the third ridge traction element including a third peripheral segment proximate and generally parallel to the medial edge of the sole structure in the forefoot region, the third peripheral segment having a substantially constant height along its length, the third ridge traction element including a third transverse segment extending away from and at an angle to the third peripheral segment, the third transverse segment joining the third peripheral segment at an end of the third peripheral segment, the third transverse segment terminating in a third free end without reaching the lateral edge, the third transverse segment having a height that decreases along its length as it extends away from the third peripheral segment, no portion of the third transverse segment having a height greater than the height of the third peripheral segment.
     
    10. The article of footwear of claim 9, wherein the sole structure includes a longitudinal flexure zone separating the third ridge traction element from the first and second ridge traction elements.
     
    11. The article of footwear of claim 1, wherein the sole structure includes a third ridge traction element, the third ridge traction element having a third peripheral segment proximate an edge of the sole structure in the hindfoot region, the third ridge traction element including an additional segment extending away from and at an angle to the third peripheral segment and terminating in a third free end.
     
    12. The article of footwear of claim 1, wherein the sole structure lacks traction elements between the first peripheral segment and the portion of the one of the medial or lateral edge to which the first peripheral segment is proximate, and the sole structure lacks traction elements between the second peripheral segment and the portion of the one of the medial or lateral edge to which the second peripheral segment is proximate.
     
    13. The article of footwear of claim 6, wherein at least one of the additional traction elements is a concave traction element cluster.
     
    14. The article of footwear of claim 1, wherein the sole structure includes a transverse flexure zone separating the first and second ridge traction elements.
     


    Ansprüche

    1. Schuhwerkartikel (101), welcher aufweist:

    eine Sohlenstruktur (102) mit

    einer Biegezone (201, 202), die sich im Wesentlichen über eine Vorderfußregion der Sohlenstruktur erstreckt, wobei die Biegezone eine Region der Sohlenstruktur bildet, die flexibler als angrenzende Regionen der Sohlenstruktur ist,

    einem ersten Grat-Traktionselement (211 - 216), wobei das erste Grat-Traktionselement ein erstes Randsegment (301, 308, 315, 322, 329, 338) in der Nähe von und allgemein parallel zu einem von einem medialen oder einem lateralen Rand der Sohlenstruktur in der Vorderfußregion aufweist, wobei das erste Randsegment entlang seiner Länge eine im Wesentlichen konstante Höhe hat,

    wobei das erste Grat-Traktionselement ein erstes Quersegment (302, 309, 316, 323, 331, 339, 340) aufweist, das sich über die Sohlenstruktur weg von und in einem Winkel zu dem ersten Randsegment erstreckt und auf beiden Seiten von angrenzenden Abschnitten der Sohlenstruktur umgeben ist, wobei das erste Quersegment mit dem ersten Randsegment an einem Ende des ersten Randsegmentes verbunden ist, wobei das erste Quersegment in einem ersten freien Ende (303, 310, 317, 325, 332, 333, 341, 342) endet, ohne den anderen von dem medialen oder dem lateralen Rand zu erreichen, wobei das erste Quersegment eine Höhe hat, die entlang seiner Länge abnimmt, während es sich von dem ersten Randsegment weg erstreckt, wobei kein Abschnitt des ersten Quersegmentes eine Höhe hat, die größer als die Höhe des ersten Randsegmentes ist, und

    einem zweiten Grat-Traktionselement (211 - 216), wobei das zweite Grat-Traktionselement ein zweites Randsegment (301, 308, 315, 322, 329, 338) in der Nähe von und allgemein parallel zu dem einen von dem medialen oder dem lateralen Rand der Sohlenstruktur in der Vorderfußregion aufweist, wobei das zweite Randsegment vor dem ersten Randsegment angeordnet ist, wobei das zweite Randsegment entlang seiner Länge eine im Wesentlichen konstante Höhe hat,

    wobei das zweite Grat-Traktionselement ein zweites Quersegment (302, 309, 316, 323, 331, 339, 340) aufweist, das sich weg von und in einem Winkel zu dem zweiten Randsegment erstreckt und auf beiden Seiten von angrenzenden Abschnitten der Sohlenstruktur umgeben ist, wobei das zweite Quersegment mit dem zweiten Randsegment an einem Ende des zweiten Randsegmentes verbunden ist, wobei das zweite Quersegment in einem zweiten freien Ende (303, 310, 317, 325, 332, 333, 341, 342) endet, ohne den anderen von dem medialen oder dem lateralen Rand zu erreichen, wobei das zweite Quersegment eine Höhe hat, die entlang seiner Länge abnimmt, während es sich von dem zweiten Randsegment weg erstreckt, wobei kein Abschnitt des zweiten Quersegmentes eine Höhe hat, die größer als die Höhe des zweiten Randsegmentes ist, wobei die Biegezone eine Querbiegezone ist, wobei die ersten und zweiten Grat-Traktionselemente durch die Biegezone getrennt sind.


     
    2. Schuhwerkartikel nach Anspruch 1, bei dem jedes der Randsegmente an einer Stelle positioniert ist, die nahe oder außerhalb eines Außenumfangs des Fußes eines Trägers liegt, wenn der Artikel getragen wird.
     
    3. Schuhwerkartikel nach Anspruch 1, bei dem:

    (1) die Biegezone eine Biegezone ist, die sich im Wesentlichen über die Vorderfußregion in einer medial-lateralen Richtung erstreckt; und

    (2) die ersten und zweiten Grat-Traktionselemente auf einer von einer medialen oder einer lateralen Seite der Sohlenstruktur angeordnet sind und durch die Biegezone getrennt sind.


     
    4. Schuhwerkartikel nach Anspruch 3, der ferner aufweist:

    ein drittes Grat-Traktionselement mit einem Randsegment in der Nähe eines Randes der Sohlenstruktur in der Vorderfußregion und einem zugeordneten Quersegment, das sich weg von und in einem Winkel zu dem Randsegment erstreckt, und

    eine zweite Biegezone, die sich im Wesentlichen über die Vorderfußregion erstreckt, wobei die zweite Biegezone eine Region der Sohlenstruktur bildet, die flexibler als an die zweite Biegezone angrenzende Regionen der Sohlenstruktur ist, und wobei die zweiten und dritten Grat-Traktionselemente durch die zweite Biegezone getrennt sind.


     
    5. Schuhwerkartikel nach Anspruch 4, bei dem
    die ersten, zweiten und dritten Grat-Traktionselemente auf einer lateralen Seite der Sohlenstruktur angeordnet sind und
    die zweite Biegezone auch eine Querbiegezone ist, die sich im Wesentlichen über die Vorderfußregion in einer medial-lateralen Richtung erstreckt.
     
    6. Schuhwerkartikel nach Anspruch 1, bei dem
    das erste Grat-Traktionselement mindestens teilweise eine erste Region der Laufsohle begrenzt,
    das zweite Grat-Traktionselement mindestens teilweise eine zweite Region der Laufsohle begrenzt und
    die erste und die zweite Region jeweils zusätzliche Traktionselemente aufweisen.
     
    7. Schuhwerkartikel nach Anspruch 6, bei dem
    mindestens ein Teil der zusätzlichen Traktionselemente Stegförmige-Traktionselemente sind,
    jedes der Stegförmigen-Traktionselemente entlang einer Längsachse eine Länge hat, die größer als eine Breite über eine Breitenachse ist, und
    die Längsachse eines jeden der Stegförmigen-Traktionselemente in einer medial-lateralen Richtung über die Laufsohle ausgerichtet ist.
     
    8. Schuhwerkartikel nach Anspruch 7, bei dem jedes der Stegförmigen-Traktionselemente ein geneigtes Ende aufweist, das dazu positioniert ist, ein Abrollen des Fußes eines Trägers in medial-lateraler Richtung aufzunehmen.
     
    9. Schuhwerkartikel nach Anspruch 1, bei dem jedes der ersten und zweiten Randsegmente in der Nähe des lateralen Randes der Sohlenstruktur in der Vorderfußregion liegt und bei dem die Sohlenstruktur ein drittes Grat-Traktionselement aufweist, wobei das dritte Grat-Traktionselement ein drittes Randsegment in der Nähe von und allgemein parallel zu dem medialen Rand der Sohlenstruktur in der Vorderfußregion aufweist, wobei das dritte Randsegment entlang seiner Länge eine im Wesentlichen konstante Höhe hat, wobei das dritte Grat-Traktionselement ein drittes Quersegment aufweist, das sich weg von und in einem Winkel zu dem dritten Randsegment erstreckt, wobei das dritte Quersegment mit dem dritten Randsegment an einem Ende des dritten Randsegmentes verbunden ist, wobei das dritte Quersegment in einem dritten freien Ende endet, ohne den lateralen Rand zu erreichen, wobei das dritte Quersegment eine Höhe hat, die entlang seiner Länge abnimmt, während es sich von dem dritten Randsegment weg erstreckt, wobei kein Abschnitt des dritten Quersegmentes eine Höhe hat, die größer als die Höhe des dritten Randsegmentes ist.
     
    10. Schuhwerkartikel nach Anspruch 9, bei dem die Sohlenstruktur eine Längsbiegezone aufweist, die das dritte Grat-Traktionselement von den ersten und zweiten Grat-Traktionselementen trennt.
     
    11. Schuhwerkartikel nach Anspruch 1, bei dem die Sohlenstruktur ein drittes Grat-Traktionselement aufweist, wobei das dritte Grat-Traktionselement ein drittes Randsegment in der Nähe eines Randes der Sohlenstruktur in der Hinterfußregion hat, wobei das dritte Grat-Traktionselement ein zusätzliches Segment aufweist, das sich weg von und in einem Winkel zu dem dritten Randsegment erstreckt und ein einem dritten freien Ende endet.
     
    12. Schuhwerkartikel nach Anspruch 1, bei dem
    an der Sohlenstruktur zwischen dem ersten Randsegment und dem Abschnitt des einen von dem medialen oder dem lateralen Rand, in dessen Nähe das erste Randsegment liegt, Traktionselemente fehlen und
    an der Sohlenstruktur zwischen dem zweiten Randsegment und dem Abschnitt des einen von dem medialen oder dem lateralen Rand, in dessen Nähe das zweite Randsegment liegt, Traktionselemente fehlen.
     
    13. Schuhwerkartikel nach Anspruch 6, bei dem mindestens eines der zusätzlichen Traktionselemente eine konkave Traktionselementgruppe ist.
     
    14. Schuhwerkartikel nach Anspruch 1, bei dem die Sohlenstruktur eine Querbiegezone aufweist, die die ersten und zweiten Grat-Traktionselemente trennt.
     


    Revendications

    1. Article chaussant (101) comprenant une structure de semelle (102) comportant :

    une zone de flexion (201, 202) s'étendant essentiellement au travers de la région d'avant-pied de la structure de semelle, la zone de flexion formant une région de la structure de semelle plus flexible que les régions adjacentes de celle-ci,

    un premier élément de traction à rebord (211, 216),

    le premier élément de traction à rebord comprenant un premier segment périphérique (301, 308, 315, 322, 329, 338) situé au voisinage et essentiellement parallèle au bord médian ou au bord latéral de la structure de semelle au niveau de la région d'avant-pied, le premier segment périphérique ayant une hauteur essentiellement constante le long de sa longueur,

    le premier élément de traction à rebord comprenant un premier segment transversal (302, 309, 316, 323, 331, 339, 340) s'étendant au travers de la structure de semelle en s'écartant angulairement du premier segment périphérique, et entouré de chaque côté par des parties adjacentes de la structure de semelle, le premier segment transversal se joignant au premier segment périphérique au niveau de l'une de ses extrémités, le premier segment transversal et se terminant au niveau d'une première extrémité libre (303, 310, 317, 325, 332, 333, 341, 342) sans atteindre l'autre bord parmi le bord latéral et le bord médian, le premier segment transversal ayant une hauteur qui diminue le long de sa longueur au fur et à mesure qu'il s'éloigne du premier segment périphérique, aucune partie du premier segment transversal n'ayant une hauteur supérieure à la hauteur du premier segment périphérique, et

    un second élément de traction à rebord (211, 216), comprenant un second segment périphérique (301, 308, 315, 322, 329, 338) situé au voisinage et essentiellement parallèle au bord médian ou au bord latéral de la structure de semelle au niveau de la région d'avant-pied, le second segment périphérique étant situé à l'avant du premier segment périphérique, et ayant une hauteur essentiellement constante le long de sa longueur,

    le second élément de traction à rebord comprenant un second segment transversal (302, 309, 316, 323, 331, 339, 340) s'étendant en s'écartant angulairement du second segment périphérique et étant entouré de chaque côté par des parties adjacentes de la structure de semelle, le second segment transversal se joignant au second segment périphérique au niveau de l'une de ses extrémités et se terminant au niveau d'une seconde extrémité libre (303, 310, 317, 325, 332, 333, 341, 342) sans atteindre l'autre bord parmi le bord médian et le bord latéral, le second segment transversal ayant une hauteur qui diminue le long de sa longueur au fur et à mesure qu'il s'écarte du second segment périphérique, aucune partie du second segment transversal n'ayant une hauteur supérieure à la hauteur du second segment périphérique, la zone de flexion étant une zone de flexion transversale, le premier et le second éléments de traction à rebord étant séparés par la zone de flexion.


     
    2. Article chaussant conforme à la revendication 1,
    dans lequel chacun des segments périphériques est positionné à proximité ou à l'extérieur de la périphérie externe du pied d'un utilisateur lorsque l'article est porté.
     
    3. Article chaussant conforme à la revendication 1, dans lequel :

    (1) la zone de flexion est une zone de flexion s'étendant essentiellement au travers de la région d'avant-pied dans la direction médiane-latérale, et

    (2) le premier élément de traction à rebord et le second élément de traction à rebord sont situés sur le côté médian ou sur le côté latéral de la structure de semelle et sont séparés par la zone de flexion.


     
    4. Article chaussant conforme à la revendication 3, comprenant en outre :

    un troisième élément de traction à rebord ayant un segment périphérique situé au voisinage d'un bord de la structure de semelle dans la région d'avant-pied et un segment transversal associé s'étendant en s'écartant angulairement du segment périphérique, et

    une seconde zone de flexion s'étendant essentiellement au travers de la région d'avant-pied, la seconde zone de flexion formant une région de la structure de semelle plus flexible que les régions de la structure de semelle adjacentes à celle-ci, le second élément de traction à rebord et le troisième élément de traction à rebord étant séparés par la seconde zone de flexion.


     
    5. Article chaussant conforme à la revendication 4, dans lequel :

    le premier élément de traction à rebord, le second élément de traction à rebord et le troisième élément de traction à rebord sont situés sur le côté latéral de la structure de semelle, et

    la seconde zone de flexion est également une zone de flexion transversale s'étendant essentiellement au travers de la région d'avant-pied dans la direction médiane-latérale.


     
    6. Article chaussant conforme à la revendication 1, dans lequel :

    le premier élément de traction à rebord limite au moins partiellement une première région de la semelle d'usure,

    le second élément de traction à rebord limite au moins partiellement une seconde région de la semelle d'usure, et

    la première région et la seconde région comprennent des éléments de traction supplémentaire.


     
    7. Article chaussant conforme à la revendication 6, dans lequel :

    au moins une partie des éléments de traction supplémentaires sont des éléments de traction à pattes,

    chacun des éléments de traction à pattes a une longueur le long de son axe longitudinal supérieure à sa largeur au travers de son axe transversal, et

    l'axe longitudinal de chacun des éléments à pattes est orienté selon une direction médiane latérale au travers de la semelle d'usure.


     
    8. Article chaussant conforme à la revendication 7, dans lequel chacun des éléments de traction à pattes a une extrémité inclinée positionnée pour s'adapter au roulement du pied d'un utilisateur dans la direction médiane-latérale.
     
    9. Article chaussant conforme à la revendication 1, dans lequel le premier segment périphérique et le second segment périphérique sont situés au voisinage du bord latéral de la structure de semelle dans la région d'avant-pied et la structure de semelle comprend un troisième élément de traction à rebord, comprenant un troisième segment périphérique situé au voisinage et essentiellement parallèle au bord médian de la structure de semelle dans la région d'avant-pied, le troisième segment périphérique ayant une hauteur essentiellement constante le long de sa longueur, le troisième élément de traction à rebord ayant un troisième segment transversal s'écartant angulairement du troisième segment périphérique, le troisième segment transversal se joignant au troisième segment périphérique au niveau de l'une de ses extrémités, le troisième segment transversal se terminant au niveau d'une troisième extrémité libre sans atteindre le bord latéral, le troisième segment transversal ayant une hauteur qui diminue le long de sa longueur au fur et à mesure qu'il s'écarte du troisième segment périphérique, aucune partie du troisième segment transversal n'ayant une hauteur supérieure à la hauteur du troisième segment périphérique.
     
    10. Article chaussant conforme à la revendication 9, dans lequel la structure de semelle comporte une zone de flexion longitudinale séparant le troisième élément de traction à rebord du premier élément de traction à rebord et du second élément de traction à rebord.
     
    11. Article chaussant conforme à la revendication 1, dans lequel la structure de semelle comporte un troisième élément de traction à rebord, ayant un troisième segment périphérique situé au voisinage d'un bord de la structure de semelle dans la région d'arrière pied, le troisième élément de traction à rebord comprenant un segment supplémentaire s'écartant angulairement du troisième segment périphérique et se terminant au niveau d'une troisième extrémité libre.
     
    12. Article chaussant conforme à la revendication 1, dans lequel :

    la structure de semelle est exempte d'élément de traction entre le premier segment périphérique et la partie du bord médian ou du bord latéral de laquelle le premier segment périphérique est voisin, et

    la structure de semelle est exempte d'élément de traction entre le second segment périphérique et la partie de bord médian ou de la partie de bord latéral de laquelle le second segment périphérique est voisin.


     
    13. Article chaussant conforme à la revendication 6, dans lequel au moins l'un des éléments de traction supplémentaire est une grappe d'éléments de traction concave.
     
    14. Article chaussant conforme à la revendication 1, dans lequel la structure de semelle comprend une zone de flexion transversale séparant le premier élément de traction à rebord et le second élément de traction à rebord.
     




    Drawing


























    Cited references

    REFERENCES CITED IN THE DESCRIPTION



    This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

    Patent documents cited in the description