US20080052960A1 - Footwear construction - Google Patents

Footwear construction Download PDF

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Publication number
US20080052960A1
US20080052960A1 US11/383,975 US38397506A US2008052960A1 US 20080052960 A1 US20080052960 A1 US 20080052960A1 US 38397506 A US38397506 A US 38397506A US 2008052960 A1 US2008052960 A1 US 2008052960A1
Authority
US
United States
Prior art keywords
forefoot
outsole
frame
base
midsole
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
Application number
US11/383,975
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English (en)
Inventor
Manon Belley
Martin W.F. Dean
Grant A. Urie
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.)
Wolverine World Wide Inc
Original Assignee
Wolverine World Wide Inc
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
Application filed by Wolverine World Wide Inc filed Critical Wolverine World Wide Inc
Priority to US11/383,975 priority Critical patent/US20080052960A1/en
Assigned to WOLVERINE WORLD WIDE, INC. reassignment WOLVERINE WORLD WIDE, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BELLEY, MANON, DEAN, MARTIN W.F., URIE, GRANT A.
Priority to CA002587810A priority patent/CA2587810A1/en
Priority to JP2007131754A priority patent/JP2007307378A/ja
Priority to EP07252070A priority patent/EP1857004A1/en
Publication of US20080052960A1 publication Critical patent/US20080052960A1/en
Abandoned legal-status Critical Current

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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
    • A43B13/16—Pieced soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—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
    • A43B13/141—Soles; Sole-and-heel integral units characterised by the constructive form with a part of the sole being flexible, e.g. permitting articulation or torsion

Definitions

  • the present invention relates to footwear and, more particularly, to a footwear construction and a method for making the same.
  • a common technique for improving stability in watersport footwear is to provide a sole assembly including a single continuous midsole, which extends from toe to heel of the footwear and a single, continuous, high-grip outsole, which likewise extends from toe to heel of the footwear.
  • the midsole is rigid enough to provide the above mentioned torsional and longitudinal stability.
  • a leather or synthetic, upper is joined by stitching. The upper extends upward from the midsole and over the top of the wearer's forefoot. There, the opposing sides of the upper are joined with a lace system which secures the footwear to the wearer's foot.
  • the rigid midsole typically provides very limited cushioning and therefore results in reduced comfort.
  • the rigid midsole generally Is unable to flex along the longitudinal axis of the footwear which extends from toe to heel generally along the center of the footwear. Accordingly, with each step, the wearer must exert sufficient force to bend the midsole. This can increase fatigue in the wearer's foot muscles. As a result, there remains a long felt and unmet need for a footwear construction that provides the desired level of stability and support, as well as comfort and flexibility.
  • a footwear construction including a midsole frame having a forefoot base, a heel base and an intermediate frame section that connects the forefoot base and the heel base.
  • the forefoot base and heel base also are separated from one another by a frame void.
  • the forefoot base can include at least one forefoot base void extending across the width of the footwear to improve flexibility of the footwear.
  • the construction can include a midsole including an upper surface and a lower surface.
  • the midsole is housed at least partially within and/or joined with the midsole frame, with the midsole frame forefoot base and a heel base separated from one another below the midsole lower surface by the frame void, and connected to one another above the lower surface by the: intermediate frame section.
  • the construction can include an outsole secured to the midsole frame.
  • the forefoot portion of the outsole can define at least one outsole forefoot void, which can be aligned with the forefoot base void.
  • the outsole can be separated into an outsole forefoot portion and an outsole heel portion separated from one another by an outsole void.
  • the footwear construction can include an upper and a closure, with me closure secured to a portion of the midsole frame, optionally to the intermediate frame section* to further secure the footwear to a wearer's foot.
  • the construction described herein provides a novel footwear having a high degree of support, as well as improved flexibility and comfort.
  • the midsole frame and its components add structured stability and firmness to the footwear. These characteristics are particularly advantageous in high performance and other footwear. With the one or more voids included in the midsole frame and/or the outsole, an added level of flexibility can be provided without compromising the structural stability of the footwear.
  • FIG. 1 is a perspective view of footwear of a first embodiment
  • FIG. 2 is a bottom exploded perspective view of the footwear
  • FIG. 3 is a bottom perspective view of the footwear
  • FIG. 4 is a side view of the footwear
  • FIG. 5 is a sectional view taken along line 5 - 5 of FIG. 4 ;
  • FIG. 6 is a sectional view taken along line 6 - 6 of FIG. 4 .
  • FIGS. 1-6 Footwear constructed in accordance with a preferred embodiment is shown in FIGS. 1-6 and generally designated 10 .
  • the footwear 10 includes an upper 20 joined with a midsole 30 , which is further joined with a midsole frame 50 , which is joined with an outsole 90 .
  • a closure 40 can be joined with the midsole frame 50 and/or upper 20 to further secure the footwear on the foot of a wearer.
  • the midsole frame 50 can include a forefoot frame base 52 and a heel frame base 54 , which are joined by an intermediate frame section 60 .
  • a plate 70 can be included in the footwear between the midsole 30 and the midsole frame 50 .
  • the midsole frame 50 and outsole 90 can each include voids SO, 82 , 84 and 91 , 92 , 94 , which are generally aligned with one another, respectively. When included, these voids can provide improved flexion of the footwear along the longitudinal axis A of the footwear to reduce fatigue on the wearer's foot.
  • the present invention will be described in connection with a watersport sandal. As will be appreciated, the present invention is well suited for use with any other type of soled footwear, including other multi-sport footwear, outdoor footwear, walking footwear, athletic footwear and work footwear.
  • the upper 20 is generally conventional and includes quarters 22 and a vamp 24 , which can be separate or integral components. As shown in FIG. 1 , the upper can be constructed to wrap from one side of the wearer's foot, over the top of the forefoot, and back down the other side of the foot.
  • the peripheral edge portions 26 can be secured to the upright flanges 34 and 36 extending from the midsole 30 by any conventional means, such as adhesives, stitching, staples, fusion and the like.
  • the upper can also include a heel portion 28 that extends from the quarters 22 , wrapping around the rear of the wearer's heel or Achilles tendon to provide additional securement of the footwear to a wearer's foot.
  • the upper can extend over an cover the wearer's toes to provide a closed toe footwear (not shown).
  • the upper 20 can be absent from the footwear altogether as desired.
  • the upper can be constructed from any suitable material such as neoprene, EVA, plastic, mesh fabric, canvas, leather or any other suitable material.
  • the midsole 30 to which the upper 20 is secured is generally formed in the shape of a wearer's foot.
  • the midsole can include forward and rearward upstanding flanges 34 and 36 , respectively, which serve to provide a point of attachment of the upper to the midsole. These flanges can be absent from the construction as desired, with the upper secured directly to the base portion 38 of the midsole by any conventional fastening construction.
  • a lower surface 37 Opposite the upper surface 35 of the midsole is a lower surface 37 , which extends from one side of the footwear corresponding to the outside of a wearer's foot, to another side of the footwear, corresponding to the inside of a wearer's foot, across a width of the bottom, of the midsole.
  • the midsole also can extend from the forward most portion of the footwear to the rearward most portion of the footwear.
  • the midsole 30 and other components of the footwear 10 can he constructed from a resilient and semi-rigid synthetic material, for example, polyurethane.
  • Polyurethane is generally well known in footwear industry; therefore, it will not be described in detail here.
  • the rigidity and flexibility of polyurethane can be varied from application to application as desired using a variety of well-known techniques, such as by adjusting the type, proportion and amount of the reactant to make-up the material.
  • the rigidity and flexibility of the polyurethane can be varied by adjusting the volume of polyurethane used.
  • polyurethane is a preferred midsole material, the density and precise chemical make-up of the midsole material will vary depending on a variety of factors, including the size of the midsole and the desired cushioning and flexibility characteristics of the footwear.
  • the lower surface 37 of the midsole optionally can include a recess 38 .
  • This recess can be configured to accept a plate 70 .
  • the recess can be configured to be of a depth sufficient to position the plate 70 in a desired location, or as deep as the plate itself.
  • the optional plate 70 can be constructed to extend from, the forefoot 100 of the footwear to the arch portion 110 , and to the heel portion 120 if desired. As shown, however, the plate extends from the forefoot portion toward the heel portion, but terminates within the heel portion. Thus, as shown, the plate extends only part of the distance from the toe to heel of the footwear.
  • the plate can include one or more projecting regions 72 that project from the generally planar structure of the plate 70 . These projecting regions can be configured to register with the voids defined by the midsole frame, and/or outsole as described below.
  • the plate can be constructed from any semi-rigid and/or rigid but flexible material. Optionally, such material can be plastic, high density EVA, polyurethane, hard rubber and the like.
  • the optional plate can also be configured to form around an optional heel button recess 39 also defined in the midsole 30 on its lower surface 37 .
  • a heel button 76 can be located within the heel button recess.
  • This heel button can be of any size, or shape, for example, circular, square, elliptical, triangular, etc. and constructed from any suitable, heel cushioning material, for example low density EVA.
  • the midsole frame 50 can include a forefoot frame base 52 and a heel frame base 54 , which are joined by an intermediate frame section 60 .
  • the forefoot frame base 52 and heel frame base 54 are optionally joined substantially only by the intermediate frame section 60 . Indeed, the forefoot base 52 and heel base 54 can be separated by a frame void 80 when the bases are in a common plane or in different planes.
  • the forefoot frame base 52 includes a forefoot wall 53 , which extends upward from the upper surface 57 .
  • the forefoot frame base 52 can also define frame voids. These forefoot frame voids 82 and 84 can be defined by the bottom 51 of the forefoot base 54 , as well as: the forefoot wall 53 . In the forefoot wall 53 , the voids 82 and 84 can widen as desired.
  • the heel frame base 54 shown in FIGS. 2 and 3 can include a heel wall 55 that extends upward from the upper surface 59 of the heel frame base 54 . As shown, this heel wall 55 can extend upward from the base 54 in select regions. Accordingly, portions of the side wall 33 of the midsole 30 remain exposed to viewers of the footwear between the base and the intermediate frame section 60 . If desired, the heel wall 55 can extend upward from the heel base 54 around the entire periphery of the base, and optionally can conceal the midsole side wall 33 .
  • the intermediate frame section 60 connects the forefoot frame base 52 and the heel frame base 54 .
  • the section 60 can be joined with any portion of these bases as desired, for example, the forefoot wall 53 and the heel wall 55 .
  • FIG. 2 shows that the section 60 is connected to a rearward portion of the heel wall 55 and a rearward portion of the forefoot wail 53 .
  • the heel base to the forefoot base can be connected by substantially only the section 60 (on both sides of the footwear), and that all of these components can be formed from one, integral piece as desired.
  • the intermediate frame section 60 is shown as an arch-shaped component; however, it can be of any other geometric configuration as desired, for example, a portion of a quadrilateral or a triangle. As shown, a portion of the intermediate frame section 60 extends a distance above both the fore foot frame base 52 and the heel frame base 54 , this section 60 can also extend above the plate 70 and upper surface 35 of the midsole 30 a selected distance. In one embodiment, the section 60 is adjacent the quarters 22 of the upper 20 .
  • the intermediate frame section 60 illustrated in FIGS. 1 , 4 , and 5 can further include apertures 67 that receive the portions of the closure 40 , which as shown, are straps that are part of a lacing system.
  • the apertures 67 can vary in size and shape from that shown depending on the desired attributes of the closure 40 .
  • the intermediate frame section 60 can define one or more heel strap apertures 69 through which a heel strap 75 can be positioned to further secure the footwear to the wearer's heel.
  • the lower surfaces of the forefoot frame base 52 and the heel frame base 54 can include alignment ridges 59 . As shown in FIGS. 2 and 3 , these alignment ridges are immediately adjacent the voids 82 and 84 .
  • the ridges 59 can be used to align the outsole with the midsole frame, and in particular, to align the outsole voids 92 and 94 with the midsole frame voids 82 and 84 .
  • the intermediate frame section 60 can he constructed from polyurethane, EVA, plastic, synthetic materials, rubber, combinations of the foregoing, or any other material as desired.
  • the frame can be constructed using injection molding techniques, or any other technique as desired.
  • the outsole 90 is constructed from a relatively hard, but gripping rubber or other sufficiently durable and wear-resistant material.
  • the outsole 90 includes bottom 99 which forms a wearing surface of the outsole 90 and may be contoured to define a desired tread pattern. Moreover, the bottom may be textured to improve the traction and aesthetic appeal of the shoe.
  • the outsole 90 is substantially flat, however, it may also include one or more peripheral walls 93 , 95 extending upwardly along the medial and/or lateral sides and/or in the heel or forefoot of the shoe. As shown, these outsole walls extend upwardly along the side walls of the midsole frame in the forefoot and heel regions of the footwear. Specifically, the outsole wall 93 extends upward along the forefoot wall 53 in the forefoot frame base 52 , and the outsole wall 95 extends upward along the heel wall 55 in the heel frame base 54 .
  • the outsole 90 optionally can be divided into two separate portions; a heel portion 96 and a forefoot portion 97 . These portions can be separated by an outsole void 91 .
  • the forefoot and heel portions can include additional voids.
  • forefoot portion 97 defines forefoot voids 92 and 94 . These voids are defined by the bottom 99 of the forefoot portion 97 , as well as the outsole wall 93 . In the outsole wall 93 , the voids 92 and 94 can widen as desired.
  • the forefoot voids 92 and 94 of the outsole are aligned with the forefoot frame voids 82 and 84 of the midsole frame 50 .
  • the projecting region 72 can project slightly into at least one of the voids defined by the midsole frame and the outsole.
  • the outsole 90 can be an integral component of the midsole frame 50 , in which case, the voids extend through the midsole frame to the lowermost portion of the frame, which also forms the ground contacting surface of the footwear 10 .
  • the footwear 10 can optionally include a closure 40 .
  • the closure is a lacing system, including a lace 42 and lace straps 44 , which are secured to the intermediate frame section 60 through the apertures 67 .
  • the closure 40 optionally can include a pressure pad 49 to distribute the pressure on the wearer's forefoot when the closure is tightened.
  • a lace lock 46 can be included in the system as desired to ensure that the system remains tightened.
  • the closure 40 is shown as a lacing system, it can be substituted entirely or in part by hook and loop closure systems, ratcheting closure systems, straps, strapping systems and snap closure systems.
  • each of the components that is, the midsole 30 , the midsole frame 50 , the plate 70 , and outsole 90 can be formed using conventional techniques such as injection molding.
  • the components are allowed to cure, and then trimmed and cleaned with a well known cleaning agent.
  • the upper 20 is formed using conventional cutting and stitching techniques. With the components thus made, they are assembled.
  • the upper 20 is secured to the rearward upstanding flanges 34 and 36 of the midsole 30 using any conventional fastening apparatus, such as cement, adhesive, and/or stitching.
  • the flex plate 70 and heel button 76 can be further secured to the midsole 30 with cement or other adhesives as desired.
  • the outsole parts can be secured to the respective heel frame base 54 and forefoot frame base 52 with cement and/or adhesives or other molding techniques.
  • the midsole 30 with the assembled upper 20 can be secured to me midsole frame 50 with the attached outsole.
  • the midsole 30 is secured so that the intermediate frame section 60 projects upward and is adjacent the upper 20 . Excess cement and/or adhesives used to join the components can be cleaned and removed from the footwear 10 .
  • closure 40 and heel strap 75 can be secured to the midsole frame 50 to complete the footwear. Thereafter, the article of footwear is readied for subsequent processing, packaging and shipping.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US11/383,975 2006-05-18 2006-05-18 Footwear construction Abandoned US20080052960A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US11/383,975 US20080052960A1 (en) 2006-05-18 2006-05-18 Footwear construction
CA002587810A CA2587810A1 (en) 2006-05-18 2007-05-07 Footwear construction
JP2007131754A JP2007307378A (ja) 2006-05-18 2007-05-17 履物の構造
EP07252070A EP1857004A1 (en) 2006-05-18 2007-05-18 Footwear construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/383,975 US20080052960A1 (en) 2006-05-18 2006-05-18 Footwear construction

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US20080052960A1 true US20080052960A1 (en) 2008-03-06

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US11/383,975 Abandoned US20080052960A1 (en) 2006-05-18 2006-05-18 Footwear construction

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US (1) US20080052960A1 (ja)
EP (1) EP1857004A1 (ja)
JP (1) JP2007307378A (ja)
CA (1) CA2587810A1 (ja)

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US20080172904A1 (en) * 2007-01-22 2008-07-24 David Pelsue Interchangeable midsole system for footwear
US20090199435A1 (en) * 2008-02-12 2009-08-13 Robinson Jr Douglas K Shoes with shank and heel wrap
US20110185595A1 (en) * 2010-02-04 2011-08-04 Salomon S.A.S. Footwear with improved upper
WO2012141376A1 (en) * 2011-04-15 2012-10-18 Ls Networks Corporation Limited A shoe having triple-hardness midsole, outsole and upper with support for preventing an overpronation
WO2014171354A1 (ja) * 2013-04-18 2014-10-23 美津濃株式会社 シューズのソール構造体
US20170224051A1 (en) * 2016-02-09 2017-08-10 Nike, Inc. Sole structure for an article of footwear with side wall notch and nonlinear bending stiffness
US20170251750A1 (en) * 2016-03-07 2017-09-07 Nike, Inc. Article Of Footwear With External Support Member
US20190090583A1 (en) * 2017-09-28 2019-03-28 Mizuno Corporation Sole structure for shoes and shoe including the same
CN110392535A (zh) * 2017-03-06 2019-10-29 富尔斯特集团有限公司 具有带边缘的编织鞋面的鞋类制品
US10602797B2 (en) 2015-07-27 2020-03-31 Chris Lintaman Length-adjustable shoe
US11297895B2 (en) 2015-09-18 2022-04-12 Nike, Inc. Footwear sole assembly with insert plate and nonlinear bending stiffness
USD1001437S1 (en) * 2020-09-24 2023-10-17 Wolverine Outdoors, Inc. Footwear sole
USD1019094S1 (en) * 2020-10-09 2024-03-26 Wolverine Outdoors, Inc. Footwear sole
USD1019093S1 (en) * 2020-10-09 2024-03-26 Wolverine Outdoors, Inc. Footwear sole

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US8732986B2 (en) 2010-08-20 2014-05-27 Nike, Inc. Sole structure comprising a fluid filled member with slots
US8689467B2 (en) * 2010-08-20 2014-04-08 Nike, Inc. Sole structure with visual effects
US8661717B2 (en) 2010-08-20 2014-03-04 Nike, Inc. Article of footwear with slots and method of making
EP3373760B1 (en) * 2015-11-20 2020-06-24 Nike Innovate C.V. Ground-engaging structures for articles of footwear
US10952498B2 (en) * 2016-11-11 2021-03-23 Nike, Inc. Plate with foam for footwear
JP2022156974A (ja) * 2021-03-31 2022-10-14 美津濃株式会社 ソール構造およびそれを用いたシューズ

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080172904A1 (en) * 2007-01-22 2008-07-24 David Pelsue Interchangeable midsole system for footwear
US20090199435A1 (en) * 2008-02-12 2009-08-13 Robinson Jr Douglas K Shoes with shank and heel wrap
US8074379B2 (en) * 2008-02-12 2011-12-13 Acushnet Company Shoes with shank and heel wrap
US20110185595A1 (en) * 2010-02-04 2011-08-04 Salomon S.A.S. Footwear with improved upper
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WO2014171354A1 (ja) * 2013-04-18 2014-10-23 美津濃株式会社 シューズのソール構造体
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