US20120005920A1 - Shoe sole structure and assembly - Google Patents
Shoe sole structure and assembly Download PDFInfo
- Publication number
- US20120005920A1 US20120005920A1 US12/803,782 US80378210A US2012005920A1 US 20120005920 A1 US20120005920 A1 US 20120005920A1 US 80378210 A US80378210 A US 80378210A US 2012005920 A1 US2012005920 A1 US 2012005920A1
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- US
- United States
- Prior art keywords
- sole
- cell wall
- cell
- elliptical
- vertices
- 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.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
- A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
-
- 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
- A43B13/18—Resilient soles
- A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The present invention is a shoe sole comprising an array of elliptical cells, wherein each cell has a wall, and wherein each cell wall is conjoined to or contiguous with at least one other cell wall. The cell wall may be conjoined to another cell wall by a conjoining element. At least some of the cell walls buckle when compressive or shear force is applied during use. The sole is made from any material with elastic properties for this application. The shoe sole can further comprise a substrate, also made of elastomeric material, integrated with the cell walls at their upper level, lower level, or their periphery, forming a unitary piece. Variations can be made as to the dimensions and arrangement of these cell walls. This sole can be incorporated into a shoe sole assembly as a shoe midsole.
Description
- The present invention is related to shoes and more particularly is directed towards an improved shoe sole having an array of intersecting cells and a shoe sole assembly incorporating this shoe sole as part of the midsole.
- A shoe generally consists of two basic parts: an upper and a sole. The upper is generally designed to enclose the foot. The upper is attached to a sole.
- The sole typically has two components: the outsole and the midsole. The outsole is the ground-contacting portion of the shoe and which provides the traction during use of the shoe. The various elements comprising the midsole provide protection, cushioning and stability to the foot during use.
- Cushioning and stability are factors in the design and construction of shoes. Compressive and shear forces are generated during usage of the shoe, such as when the user is running, walking, or standing.
- It is well known in the art that shoe design is one manner in which to reduce stress on the body during running, walking, or standing.
- The present invention is a shoe sole comprising an array of elliptical cells, wherein each cell has a wall, and wherein each cell wall is conjoined to or contiguous with at least one other cell wall. The cell wall may be conjoined to another cell wall by a conjoining element. At least some of the cell walls buckle when compressive or shear force is applied during use. The sole is made from any material with elastic properties for this application.
- The shoe sole may further comprise an array of elliptical cells wherein each cell has a major axis and a minor axis, the major axis having opposing vertices and the minor axis having opposing co-vertices. The vertices are located at an intersection of the major axis and the cell wall, and the co-vertices are located at an intersection of the minor axis and the cell wall. The cell wall is conjoined to or contiguous with another cell at the vertices or co-vertices.
- The shoe sole may further comprise a substrate affixed to an upper level, lower level, or periphery of the array of cells. This substrate may also be made of elastomeric material. The substrate and array of cells can form a unitary piece. Variations can also be made to the height, dimensions and arrangement of the cells.
- The present invention also comprises a shoe sole assembly incorporating the above shoe sole as a midsole. This shoe sole assembly comprises an outsole, a midsole seated above the outsole, and a support structure seated about the periphery of the midsole.
- The above elements, their combination and their various embodiments, are described below in more detail.
-
FIG. 1 is a perspective view of the shoe sole of the present invention; -
FIG. 2 is an exploded view of a shoe sole assembly incorporating the shoe sole ofFIG. 1 ; -
FIG. 3 is a top plan view of the shoe sole shown inFIG. 1 ; -
FIG. 4 is a cross-sectional view taken along line 4-4 ofFIG. 3 ; -
FIG. 5 is an enlarged view of several elliptical cells of the shoe sole shown inFIG. 3 taken within the circular segment “5” inFIG. 3 ; -
FIG. 6 is a close-up view of a portion of the shoe sole shown within circular segment “6” inFIG. 3 ; -
FIG. 7 is a right side elevational view of the shoe sole shown inFIG. 1 ; -
FIG. 8 is a left side elevational view of the shoe sole shown inFIG. 1 ; -
FIG. 9 is a front elevational view of the shoe sole shown inFIG. 1 ; -
FIG. 10 is a rear elevational view of the shoe sole shown inFIG. 1 ; -
FIG. 11 is a bottom perspective view of the shoe sole assembly shown inFIG. 2 ; -
FIG. 12 is a bottom plan view of the shoe sole assembly shown inFIG. 2 ; -
FIG. 13 is a right side elevational view of the shoe sole assembly shown inFIG. 2 ; -
FIG. 14 is a left side elevational view of the shoe sole assembly shown inFIG. 2 ; -
FIG. 15 is a front elevational view of the shoe sole assembly shown inFIG. 2 ; -
FIG. 16 is a rear elevational view of the shoe sole assembly shown inFIG. 2 ; -
FIG. 17 is a top plan view of the shoe sole assembly as shown inFIG. 2 ; -
FIG. 18 is a top plan view of the support structure of the shoe sole assembly as shown inFIG. 2 . - Referring to the drawings, like reference numerals represent identical or corresponding parts throughout the several views of
FIGS. 1 through 18 . - While the present invention will be described in terms of the preferred embodiment, it will be understood that it is not intended to limit the invention to that specific embodiment. The present invention is intended to cover alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as defined by the claims herein.
- Referring to
FIG. 1 , theshoe sole 20 comprises an array ofelliptical cells 21. Each cell has awall 22 which is conjoined to or contiguous with at least oneother cell wall 22. Thisshoe sole 20 can be incorporated into ashoe sole assembly 50, as part of the shoe's midsole, as shown inFIG. 2 . - At least some of the cell walls buckle when compressive or shear force is applied during use. The array of cells is made with any material with elastic properties for this application, which includes materials presently known in the art such as thermoplastic elastomers, thermoplastic polyurethanes, including gelatinous elastomers and materials such as Thermal Plastic Resin (TPR).
- Referring to
FIGS. 3 , 4, 5 and 6, in a preferred embodiment, theelliptical cell 21 is formed by a combination of twoopposing cell walls 22 and opposing relatedconjoining elements 22 a. An inner boundary of thecell wall 22 creates theelliptical cell 21. - As can be seen in
FIG. 5 , eachelliptical cell 21 has a geometry of an ellipse, which has amajor axis 30 and aminor axis 40. Themajor axis 30 is the longer segment that runs through the center of theelliptical cell 21 and has opposing endpoints on thecell wall 22. These endpoints are calledvertices 30 a. Theminor axis 40, which is the shorter segment, also runs through the center of theelliptical cell 21 perpendicular to themajor axis 30, and has its opposing endpoints on thecell wall 22. These endpoints are calledco-vertices 40 a. - Referring to
FIGS. 4 , 5, and 6, the cell walls intersect adjacent cell walls by fusion of the elastomeric material in the region of thevertices 30 a andco-vertices 40 a. This fusion is accomplished by aconjoining element 22 a. Thus, intersection in this preferred embodiment is accomplished by conjoining acell wall 22 to anothercell wall 22 by a conjoiningelement 22 a. However, other means of intersection can be used, such as by contiguous or adjacent placement of cells without the presence of aconjoining element 22 a, where the cells walls are directly contiguous to one another. - The
upper layer 41 of theelliptical cell walls 22 are of uniform height along a horizontal plane. Theelliptical cell walls 22 can also be of varying height. For example, as shown inFIGS. 7 and 8 , the height of the cell walls may proceed to slightly decrease towards thefrontal region 42 of the element, where the toes sit. The height of thecell walls 22 could also be greater in areas of the foot which are frequently exposed to relatively high levels of ground reaction forces, such as the heel or the ball of the foot. Alternatively, for arch support, the height of thecell walls 22 could be greater in the area substantially corresponding to the arch of the wearer's foot. - The geometry of the cells can be varied by changing the ratio of the
major axis 30 to theminor axis 40 of any or all of the cells to create a longer or shorter, wider or narrower cell. - Referring to
FIGS. 7 and 8 , theelastomeric cell walls 22 extend vertically from the lower level of the wall to itsupper level 41. The cell wall height can range from 0.3 inches to approximately 1.2 inches. However, such height may be configured taking into account several factors such as thickness, shape, and circumference of the cell wall, array pattern, and material used in fabricating the cell walls. - The
cell walls 22 may also be configured in any number of shapes and geometries other than an ellipse, such as circles, squares, S-shaped, diamond-shaped, parallelogram, or triangular, any combination of such, or any irregular shape, as long as the cell walls are fused, joined or integrated with adjacent cell walls. - In the present embodiment, the
cells 21 are arranged in a staggered fashion such as inFIGS. 1 through 6 . In this staggered arrangement, the cells are arranged in an alternating fashion, whereby theminor axis 40 of a cell in one row directly corresponds with theminor axis 40 of another cell in alternate rows. In other embodiments, the cells are lined up side-by-side, from one row to the next, along theirmajor axes 30 andminor axes 40 in a uniform fashion. - These intersecting elliptical cells may also be arranged longitudinally, with the
major axis 30 of each cell running parallel to the longitudinal axis of the wearer's foot, as shown inFIGS. 3 , 5, and 6. In other embodiments, these intersecting elliptical cells may be arranged latitudinally, along the latitudinal axis of the wearer's foot, perpendicular to its longitudinal axis. - Referring to
FIGS. 3 , 7, 8, 9, and 10, the shoe sole 20 can further comprise asubstrate 60. Thesubstrate 60 can be affixed to, fused, joined, or integrated with the upper 41 orlower level 42 of the array of elliptical cell walls. In the preferred embodiment, thissubstrate 60 and array of intersecting elliptical cells form a unitary piece, with the substrate at the periphery and lower level of the cell walls. Additional shoe components, such as anoutsole 70, can be affixed to thesubstrate 60, as depicted inFIGS. 2 , 13, 14, 15 and 16. - The
substrate 60 and its periphery can vary in thickness, from 0.2 to 1.5 inches, and can also vary in width along the longitudinal axis of the wearer's foot. The height of thesubstrate 60 can also be greater in areas of the foot which are frequently exposed to relatively high levels of ground reaction forces, such as the heel or the ball of the foot. Alternatively, for arch support, the height could be greater in the area substantially corresponding to the arch of the wearer's foot. - In embodiments where the
substrate 60 is integrated with or affixed to theupper level 41 of the array of cell walls, thissubstrate 60 forms the part of where the wearer's foot rests, such as the insole, which can be covered with any suitable material such as fabric, leather, vinyl foam, polyurethane or the like. Alternatively, thissubstrate 60 can also form the outsole of the shoe, with an outer sole surface which is the ground-contacting surface. - The
substrate 60 can be made from the same material as theelastomeric cell walls 22, or from any material with elastic properties which include those presently known in the art such as by way of example, various elastomers which include thermoplastic elastomers, thermoplastic polyurethanes, gelatinous elastomers, and TPR. Alternatively, it could also be made from rubber if thissubstrate 60 is also the shoe outsole comprising the ground-contacting surface of the shoe. - The shoe sole 20 may be manufactured using any appropriate technique and methodology known in the field, such as, by way of example, compression molding, thermoforming, or extrusion molding. The preferred method, however, is injection molding.
- Referring now to
FIGS. 2 , 11, 12, and 13, the present invention also relates to a shoesole assembly 50 which incorporates this shoe sole'20 as part of the midsole. The shoesole assembly 50 comprises anoutsole 70, a shoe sole 20 seated above theoutsole 70, and asupport structure 80 seated about the periphery of the midsole. The shoe sole 20 which is incorporated as a midsole of this shoe assembly can be in any of the embodiments of the shoe sole described above. - Referring to
FIGS. 11 and 12 , theoutsole 70 has an outersole surface 90, the outer sole surface comprising aheel portion 100 at a location substantially corresponding to the calcaneus region of the intended wearer's foot and aforefoot portion 200 at a location substantially corresponding to the forefoot region of the intended wearer's foot. The calcaneus is the heel bone of a human foot. The forefoot is composed of the five toes (called phalanges) and their connecting long bones (called metatarsals). Theoutsole 70 and its outersole surface 90, which is the ground-contacting surface, are typically made of rubber. - The
heel portion 100 has anelliptical heel region 101 with a plurality ofprojections 102. Similarly, theforefoot portion 200 has anelliptical heel region 201 with a plurality ofprojections 202. These projections aid in traction and gripping the ground surface during use of the shoe. In various embodiments, these projections may be in the form of cleats, which include metal, plastic or hard rubber pieces. These projections may also be configured in any number of shapes such as, by way of example, rounded, arcuate, triangular, square, rectangular, oval, or diamond-shaped. - As shown in
FIGS. 2 , and 13 through 17, asupport structure 80, also forms a part of thissole assembly 50. As can be seen inFIG. 17 , this support structure is attached to the periphery of themidsole 20 and accommodates the fixation of additional shoe components. These additional shoe components can be the shoe upper, insole, or another midsole layer. - The
support structure 80 is typically made of blown plastic foam such as, by way of example, polyurethane foam or EVA. Higher-density foam materials are preferred for added support. - The above-described integrated array of cells facilitates the attenuation of ground reaction forces by distribution of shear or compressive forces through enhanced instability. This instability is achieved through buckling of the
cell walls 22, as described below. - Specifically, in the operation of the shoe
sole assembly 50 of the present invention, the wearer of the shoe places weight on the shoe by standing, walking, running, or jumping. Various forces, such as compressive and shear forces, are created by such usage. These forces are transmitted from ground contact, upon heel strike to forefoot stance, to the shoe sole components. When shear or compressive forces are transmitted from the outersole surface 90, to theoutsole 70, then to themidsole 20 comprising an array of intersecting elliptical cells made of elastomeric material, theelliptical cell walls 22 buckle. This buckling of thecell walls 22 upon ground contact by the user disperses the shear and/or compressive forces to adjoining cell walls, which dispersal is facilitated by the presence of intersecting cell walls. This is believed to result in distribution of shear and compressive forces by the enhanced instability of the midsole provided by this array of intersecting cell walls. - The present invention can be used in any use or application of footwear.
- Moreover, this disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size and arrangement of parts, within the principle of the invention, to the full extent indicated by the broad general meaning of the terms in which the claims herein are expressed.
Claims (10)
1. A shoe sole comprising:
an array of elliptical cells,
wherein each cell has a wall;
wherein each cell wall is conjoined to or contiguous with at least one other cell wall; and
wherein at least some of the cell walls buckle when compressive or shear force is applied during use.
2. The sole of claim 1 , wherein the cell wall further comprises:
a major axis and a minor axis, the major axis having opposing vertices and the minor axis having opposing co-vertices;
wherein the co-vertices are located at an intersection of the minor axis and the elliptical cell wall;
wherein the vertices are located at an intersection of the major axis and the elliptical cell wall; and
wherein the cell wall is conjoined to or contiguous with another cell wall at the vertices or co-vertices.
3. The sole of claim 1 wherein a cell wall is conjoined to another cell wall by a conjoining element.
4. The sole of claim 1 wherein the sole is made of elastomeric material.
5. The sole of claim 1 further comprising a substrate affixed to an upper level, lower level, or periphery of the array.
6. The sole of claim 5 wherein the substrate is made of elastomeric material.
7. The sole of claim 5 wherein the substrate and the array form a unitary piece.
8. The sole of claim 1 wherein the cell walls are of varying dimensions.
9. The sole of claim 1 wherein the cells are staggered.
10. A shoe sole assembly comprising:
an outsole, a midsole seated above the outsole, and a support structure seated about the periphery of the midsole;
wherein the outsole has an outer sole surface, the outer sole surface comprising a heel portion at a location substantially corresponding to the calcaneus region of the intended wearer's foot and a forefoot portion at a location substantially corresponding to the forefoot region of the intended wearer's foot;
the heel portion having an elliptical heel region with a plurality of projections;
the forefoot portion having an elliptical forefoot region with a plurality of projections;
wherein the midsole comprises:
an array of elliptical cells,
wherein each cell has a wall;
wherein each cell wall is conjoined to or contiguous with at least one other cell wall;
wherein at least some of the cell walls buckle when compressive or shear force is applied during use; and
wherein the support structure further accommodates the fixation of additional shoe components.
Priority Applications (1)
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US12/803,782 US20120005920A1 (en) | 2010-07-06 | 2010-07-06 | Shoe sole structure and assembly |
Applications Claiming Priority (1)
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US12/803,782 US20120005920A1 (en) | 2010-07-06 | 2010-07-06 | Shoe sole structure and assembly |
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US20120005920A1 true US20120005920A1 (en) | 2012-01-12 |
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US12/803,782 Abandoned US20120005920A1 (en) | 2010-07-06 | 2010-07-06 | Shoe sole structure and assembly |
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USD665979S1 (en) * | 2010-10-21 | 2012-08-28 | Aerogroup International Holdings Llc | Shoe sole |
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US8793902B2 (en) | 2011-01-10 | 2014-08-05 | Nine West Development Corporation | Footwear having waterproof vapor-permeable sole and sockliner for same |
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USD740004S1 (en) | 2013-04-12 | 2015-10-06 | Adidas Ag | Shoe |
USD746559S1 (en) * | 2011-01-10 | 2016-01-05 | Nine West Development Llc | Footwear sole |
USD746560S1 (en) | 2015-06-29 | 2016-01-05 | Cole Haan Llc | Shoe sole |
USD747083S1 (en) | 2015-05-19 | 2016-01-12 | Cole Haan Llc | Shoe midsole |
USD756620S1 (en) * | 2015-10-13 | 2016-05-24 | Cole Haan Llc | Shoe sole |
USD768969S1 (en) * | 2015-10-13 | 2016-10-18 | Cole Haan Llc | Shoe midsole |
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