WO2022200997A1 - Structure d'article chaussant - Google Patents

Structure d'article chaussant Download PDF

Info

Publication number
WO2022200997A1
WO2022200997A1 PCT/IB2022/052560 IB2022052560W WO2022200997A1 WO 2022200997 A1 WO2022200997 A1 WO 2022200997A1 IB 2022052560 W IB2022052560 W IB 2022052560W WO 2022200997 A1 WO2022200997 A1 WO 2022200997A1
Authority
WO
WIPO (PCT)
Prior art keywords
insole
tensioning
tensioning element
midsole
foot
Prior art date
Application number
PCT/IB2022/052560
Other languages
English (en)
Inventor
Alberto Fonte
Original Assignee
Udog Srl
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 Udog Srl filed Critical Udog Srl
Publication of WO2022200997A1 publication Critical patent/WO2022200997A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/0265—Uppers; Boot legs characterised by the constructive form having different properties in different directions
    • A43B23/0275—Uppers; Boot legs characterised by the constructive form having different properties in different directions with a part of the upper particularly rigid, e.g. resisting articulation or torsion
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—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
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/0235—Different layers of different material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C1/00—Shoe lacing fastenings
    • A43C1/003—Zone lacing, i.e. whereby different zones of the footwear have different lacing tightening degrees, using one or a plurality of laces
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C1/00—Shoe lacing fastenings
    • A43C1/04—Shoe lacing fastenings with rings or loops

Definitions

  • the present invention relates to the footwear sector and its subject is a special footwear structure.
  • a footwear structure consists of an upper provided with an internal surface intended to envelop the user's foot and an insole, the function of which is to ensure the ergonomic contact of the sole of the user's foot with the footwear.
  • the upper is firmly joined to the insole by means of sewing and/or gluing and has a front opening designed to facilitate the insertion of the foot inside the cavity defined by the upper itself.
  • the insole is typically made of a relatively pliable material to allow the ergonomic and comfortable support of the sole of the user's foot.
  • the footwear structure also includes an outsole integral with the insole and placed below it.
  • the outsole is made of semi-rigid material (in general rubber, leather or polymeric materials) when its function is to come into contact with the ground protecting the foot from impacts and irregular surfaces or rigid material (carbon fiber, plastic, nylon) when the function is to attach the footwear in question to an external tool through special locking cleats, as typically happens in the case of cycling shoes, ski boots or skates.
  • semi-rigid material in general rubber, leather or polymeric materials
  • rigid material carbon fiber, plastic, nylon
  • the shoelace (or shoelaces) can be inserted in eyelets located on through elements permanently attached to the upper in proximity to the front opening (for example by means of rivets or by means of sewing).
  • the shoelace can be inserted through the holes or eyelets in an intertwined manner so as to promote the mutual approaching of the edges of the front opening when the user applies a tension to the same shoelace to close the footwear means of a knot.
  • Some footwear provides for a tensioning element, generally integral with the upper, the function of which is to tighten (or create tension on) the sides of the upper in order to increase the adhesion of the foot to the internal surface of the upper.
  • the present invention intends to overcome the aforementioned technical drawbacks by providing a particularly effective and innovative footwear structure.
  • the main object of the present invention is to provide a particularly comfortable footwear structure which allows to significantly increase the user's perception of the foot being enveloped.
  • a further object of the present invention is to provide a particularly high- performance footwear structure that allows to significantly increase the contact surface of the user's foot with the inner surface of the upper.
  • a further object of the present invention is to provide a footwear structure which is particularly simple to make.
  • Another object of the present invention is to provide a footwear structure that minimizes manufacturing costs.
  • Still another object of the present invention is to provide a footwear structure that is easily adaptable to all types of shoes and/or footwear currently on the market.
  • a further object of the present invention is to provide a footwear structure that allows to obtain particularly pleasing footwear also from an aesthetic point of view.
  • a no less important object of the present invention is to provide a footwear structure that is particularly resistant over time, enabling the user to achieve high comfort over long periods of use.
  • FIG. 1 is a top view of a cycling footwear, the structure of which complies with the subject of the present invention
  • Figure 2 is a first side view of the footwear of Figure 1 ;
  • Figure 3 is a second side view of the footwear of Figure 1 ;
  • Figure 4 is a partial sectional side view of the footwear of Figure 1 ;
  • FIG. 5 is a sectional view of the footwear of Figure 1.
  • the present invention relates to a footwear structure.
  • This footwear structure hereinafter referred to with reference number 1, can be used on almost any footwear on the market.
  • the present structure may be suitable for making footwear for both domestic and work use (classic shoes with shoelaces, casual shoes, sneakers, etc.) or footwear whose usage is specifically limited to certain activities such as, for example, sports footwear (cycling, running, football, skating, hockey, etc.), rock climbing or mountaineering boots, hiking boots, etc.
  • FIG. 1 The attached Figures illustrate a cycling footwear 1 the structure of which is of the type according to the subject of the invention.
  • the present footwear structure provides for an upper 2 with a passage 3 for inserting the foot of a user, this passage 3 consists of two openings: a front opening 4 placed in the front portion 5 of the upper 2 and a rear opening 6 placed in the rear portion 7 of the upper 2.
  • the front opening 4 is delimited by a pair of substantially straight edges 8, 9 connected to each other at their ends.
  • edges 8, 9 are suitably shaped to define an elongated front opening towards the tip 10 of the upper 2 the shape of which substantially forms a "U” or a "V.”
  • the rear opening 6 has a substantially circular or elliptical shape to allow the user's foot to be easily inserted into the cavity 11 defined by the upper 2.
  • the cavity 11 is delimited by the inner surface 12 of the upper 2 which is suited to envelop the user's foot when wearing the shoe 1.
  • eyelet refers to an element integral with the upper 2 and provided with an hole for the passage of a shoelace. This element can be connected to the upper 2 by means of sewing, a rivet or other similar fastening means.
  • a shoelace 14 intended to be tied by the user after the foot is inserted inside the cavity 11 of the upper 2, is inserted through these holes and/or eyelets 13.
  • the user before tying the knot, the user must apply a predetermined tension to the shoelace 14 in order to minimize the width of the front opening 4.
  • the shoelace 14 is inserted through the holes and/or eyelets 13 in a substantially intertwined manner to minimize the gap between the edges 8, 9 of the front opening 4 when the user creates the aforementioned tension.
  • the interlacing of the shoelace 14 must be such as to extend above the front opening 4 to totally or partially cover it.
  • the upper 2 is joined to an insole 15 suited to come into contact with (and support) the sole of the user's foot.
  • the insole 15 is in fact that part of the footwear 1 through which the user puts his/her body weight during the movement of the foot.
  • the insole 15 is made of a material at least partially pliable and has an upper surface 16 substantially complementary to that of the sole of the foot.
  • the insole 15 is inserted inside the internal cavity of the upper and is generally not fixed to the latter in a stable manner.
  • the footwear structure also comprises a midsole 17 whose function is to be placed between the insole 15 and the outsole to provide substantial support to the foot while simultaneously ensuring suitable freedom of movement.
  • the midsole 17 is placed below the insole 15 and is permanently attached to the upper 2.
  • the upper surface 18 of the midsole 17 is intended to come into contact with the lower surface 19 of the insole 15 while the upper 2 is joined to said midsole 17 at its lower surface 20.
  • the lower surface 19 of the insole 15 is placed directly in contact with the upper surface 18 of the midsole 17, that is, there are no further elements of the footwear structure 1 that are placed between these two surfaces.
  • the upper 2 in fact, is exclusively joined to the midsole 17 at the lower surface 20 of the latter; consequently, there are no points of the upper 2 anchored directly to the insole 15.
  • This special configuration of the footwear structure allows to place a substantial portion of the midsole 17 (that is, most of it) inside the cavity 11 enclosed by the upper 2.
  • the upper surface 18 of the midsole is also completely contained within the cavity 11 and is directly accessible by the user by lifting the insole 15.
  • the insole 15 rests on the midsole 17 in a removable manner, so as to be easily removed and re-inserted by the user wearing the footwear structure.
  • the insole 15 is freely inserted into the cavity 11 and is therefore removable if necessary.
  • the insole 15 may be permanently joined to the midsole 17 (for example by means of one or more glue points interposed between these two components of the structure).
  • the upper 2 is joined to the midsole 17 by means of one or more sewing and/or gluing.
  • An outsole 21 placed below the midsole 17 is also provided.
  • the outsole 21 has an upper surface 22 stably joined to the lower surface 20 of the midsole 17 (for example by sewing and/or gluing by means of glues or sealant) .
  • the lower surface 23 of the outsole 21 is intended to come into contact with the ground.
  • the outsole 21 may be made of a rigid or semi-rigid material with a minimum degree of elasticity such as to allow its partial shape deformation to adapt to the bending of the foot.
  • the outsole 21 can be made of a polymeric material (or a mixture of polymeric materials), or leather, or rubber, or even a combination of layers made of one or more of these materials.
  • the outsole 21 is made of a particularly rigid polymeric material (for example carbon fiber) but is such as to still have some limited flexibility so as to adapt, at least partially, to the bending of the foot.
  • the footwear structure 1 which is the subject of the present invention comprises at least one tensioning element 24 whose function is to promote the tensioning of the upper 2 so as to favor its adhesion to the user’s foot.
  • tensioning of the upper refers to the action carried out by the tensioning elements 24 on the upper itself; this action, in fact, increases the contact and adhesion generated between the inner surface 12 of the upper 2 and the user’s foot.
  • the tensioning element 24 is to increase the adhesion of the inner surface 12 of the upper 2 to the user's foot.
  • the tensioning element 24 can be made by means of a strap (or a belt or the like) partially superimposed on the upper 2 and provided with a pair of free ends 25, 26 positioned on the lateral portion of the upper 2 on the opposite side with respect to the front opening 4.
  • the tensioning element 24 may be made of materials and geometric shapes other than that illustrated, for example by using strips of laminar material, threads and/or laces, etc.
  • the footwear structure 1 which is the subject of the present invention requires the use of a plurality of tensioning elements 24 distinct and separate from each other, each of which is suited to facilitate the tensioning of the area of the upper 2 near the tensioning element 24 itself.
  • the preferred embodiment of the invention requires the use of a plurality of tensioning elements 24 (distinct and separate from each other) distributed along the length of the footwear structure 1.
  • the tensioning elements 24 are spaced with a predetermined pitch (which may be fixed or variable) so as to define a series of tensioning elements 24.
  • Each tensioning element 24 of this series has a respective pair of free ends 25, 26 placed on the lateral portion of the upper 2 on the opposite side with respect to the front opening 4 and substantially at the same distance from the tip 10 of the upper 2.
  • the tensioning element 24 has a body 27 which extends seamlessly between two respective ends 25, 26 (that is, it extends continuously and without interruption between these two ends).
  • each tensioning element 24 is operatively connected to the intertwined shoelace 14 while the body 27 envelops the insole 15 by passing under it.
  • the part of the body 27 of the tensioning element 24 located internally with respect to the upper 2 does not come into direct contact with the sole of the user's foot since the latter rests on (and therefore interacts exclusively) with the upper surface 16 of the insole 15.
  • the tensioning element 24 is located on the footwear structure 1 in such a way as to avoid direct contact of any part thereof with the user's foot.
  • At least one portion of the body 27 of the tensioning element 24 may be interposed between the insole 15 and the midsole 17, as in the embodiment shown in the Figures.
  • the lateral surfaces 28, 28’ of the body 27 are respectively in contact with the lower surface 19 of the insole 15 and with the upper surface 18 of the midsole 17.
  • At least one portion of the body 27 of the tensioning element 24 is located between the midsole 17 and the outsole 21.
  • the lateral surfaces 28, 28’ of the body 27 are respectively in contact with the lower surface 20 of the midsole 17 and with the upper surface 22 of the outsole 21.
  • the ends 25, 26 of the tensioning element 24 are operatively connected to the intertwined shoelace 14 and in the context of the present description this means that between the ends 25, 26 of the tensioning element 24 and the shoelace 14 there is a mechanical connection that leads to the variation of the position of the ends 25, 26 when tension is applied to said shoelace 14 by the user.
  • the ends 25, 26 of the tensioning element 24 are placed near the edges 8, 9 of the front opening 4 and the possible tension of the shoelace 14 is suited to bring the ends 25, 26 closer to the respective edges 8, 9 of said opening 4.
  • the tensioning of the shoelace 14, therefore, causes the ends 25, 26 of the tensioning element 24 to move towards each other along a direction of movement X passing through the front opening 4.
  • the slots 29 of the tensioning elements 24 are additional eyelets in addition to the holes and/or eyelets 12 already made or fixed on the upper 2.
  • the tensioning of the shoelace 14 causes the ends 25, 26 of the tensioning element 24 to move towards each other according to the methods described above so as to subject the body 27 of said element 24 to a predetermined traction force.
  • This traction tends to reduce the size of the portion of the upper 2 that is located below the tensioning element 24 and it is precisely thanks to this reduction in size that the inner surface 12 of the upper is more compressed towards the foot of the user with the result of increasing its adhesion.
  • the user's foot benefits from a greater "enveloping" sensation by the footwear 1 and this also allows the user to increase control of the foot through the shoe itself.
  • This "enveloping" effect is particularly present in the area of the upper 2 and the insole 15 which are located in the area of the tensioning element 24 in the Figures, this area is indicated as the portion of the upper 2 and the insole 15, 15 enclosed between the dashed lines Z located in the vicinity of the tensioning element 24.
  • the tensioning of element 24 also causes a greater adhesion of the insole 15 to the sole of the foot.
  • the tension applied to the tensioning element 24 allows to increase the compression to which the upper surface 16 of the insole 15 is subjected towards the sole of the user's foot, effectively increasing the "enveloping" sensation perceived by the latter under the foot.
  • the midsole 17 may have one or more channels 30 which extends along its entire width and which enable the housing the body of the tensioning element 24 therein.
  • these channels 30 may be open at the top and oriented in such a way as to direct their opening towards the insole 15 (as shown in the Figures) or towards the outsole 21.
  • each channel 30 may be obtained from a discontinuity of the shape of the upper surface 16 or lower surface 19 of the insole 15 through which it is possible to obtain a through groove 31 delimited by three sides 32 substantially perpendicular to each other.
  • the tensioning element 24 will therefore be inserted into the respective channel 30 before pursuing the stable adhesion of the insole 15 to the midsole 17 (by sewing or gluing, as described above).
  • the tensioning of the element 24 causes the body 27 to rise upwards, its lateral surface 28 also rises upwards through the opening present in the channel 30 (and facing upwards). This movement increases the interaction of the lateral surface 28 with the lower surface 19 of the insole 15.
  • the directions in which the bodies 27 of the tensioning elements 24 are positioned may be different, for example in the embodiment shown, the pair of tensioning elements 24 is positioned along respective and mutually converging directions Y towards the slot 29 positioned at their ends 25, 26.
  • each tensioning element there may be a pair of slits 33 obtained on the upper 2 near the insole 15 and suited to allow the through passage of the ends 25, 26 of the tensioning element 24 so as to allow its positioning outside the upper 2 (and near the holes and/or eyelets 13). [00106] It is possible to pass the ends 25, 26 and the portion of the body 27 that is near these ends 25, 26 through the slits 33 in order to position them outside the upper 2.
  • the slits 33 are obtained near the insole 15, that is, in the lower part of the upper 2 at a considerable distance from the edges 8, 9 that delimit the front opening 4.
  • the slits 33 are access points for the tensioning element 24 inside the cavity 11 of the upper 2, in particular, through these slits 33 it is possible to insert a portion of the body 27 of the tensioning element 24 inside the cavity 11.
  • the positioning of the slits 33 in proximity to the level at which the insole 15 allows the body 27 of the tensioning element to be kept in a substantially extended and parallel position to the ground, so as to prevent the sagging or formation of curls by the body itself that can bring the lateral surface 28 into contact with the user's foot.
  • This particular position of the slits 33 also allows to improve the tightening of the tensioning element 24 due to the fact that the body 27 of the latter is always kept in a substantially extended position (even when it has curved sections with a relatively long radius, especially along the development of the outer surface of the upper 2) so as to enable the tensile forces that are applied to the tensioning element 24 to be distributed substantially uniformly throughout its entire length.
  • the body 27 of the tensioning element 24 is partially outside the upper 2 (in the part that includes the end portion comprising the ends 25, 26) and partially inside the structure (in the remaining part that surrounds the insole 15).
  • the tensioning elements 24 may be made of substantially rigid and non-elastic material (that is, leather or the like).
  • the tensioning elements 24 may be made of elastic material (generally polymeric material). [00115] Furthermore, the tensioning elements 24 may be made by joining portions of rigid elements and elastic elements, placed according to a predetermined sequence (for example in an alternating sequence or the end portions of the body are made of elastic material and the intermediate portion is made of rigid material, or vice versa) [00116]
  • the present invention may be implemented in other embodiments, all of which fall within the scope of the inventive characteristics claimed and described herein; these technical characteristics may be replaced by different but technically equivalent elements and materials; the forms and dimensions of the invention can vary provided they are compatible with its purpose. [00117]
  • the reference numbers and signs included in the claims and description have the sole purpose of facilitating the comprehension of the explanations and must not be considered elements that limit the technical interpretation of the objects or processes indicated by them.

Abstract

Structure d'article chaussant comprenant une tige (2) comprenant une ouverture avant (4) délimitée par une paire de bords (8, 9) ; une pluralité de trous et/ou d'œillets (13) réalisés le long des bords (8, 9) de ladite ouverture avant (4) ; au moins un lacet (14) conçu pour être inséré de manière sensiblement entrelacée à l'intérieur desdits trous et/ou œillets (13) ; une première de propreté (15) placée dans ladite tige (2) ; une semelle intermédiaire (17) solidement reliée à ladite tige (2) et agencée sous ladite première de propreté (15) ; une semelle d'usure (21) solidement reliée à ladite semelle intermédiaire (17) et placée sous celle-ci ; au moins un élément tendeur (24) conçu pour favoriser la mise en tension de ladite tige (2) pour faciliter son adhérence au pied de l'utilisateur. Chaque élément tendeur (24) comporte une paire d'extrémités (25, 26) placées à proximité des bords respectifs (8, 9) de ladite ouverture avant (4) et un corps (27) s'étendant de façon continue entre ladite paire d'extrémités (25, 26), les extrémités (25, 26) de chaque élément tendeur (24) étant fonctionnellement reliées audit lacet (14) et le corps (27) de chaque élément tendeur (24) étant conçu pour entourer ladite première de propreté (15) sous celui-ci.
PCT/IB2022/052560 2021-03-22 2022-03-21 Structure d'article chaussant WO2022200997A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102021000006803 2021-03-22
IT102021000006803A IT202100006803A1 (it) 2021-03-22 2021-03-22 Struttura di calzatura

Publications (1)

Publication Number Publication Date
WO2022200997A1 true WO2022200997A1 (fr) 2022-09-29

Family

ID=76269869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2022/052560 WO2022200997A1 (fr) 2021-03-22 2022-03-21 Structure d'article chaussant

Country Status (2)

Country Link
IT (1) IT202100006803A1 (fr)
WO (1) WO2022200997A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040181972A1 (en) * 2003-03-19 2004-09-23 Julius Csorba Mechanism of tying of shoes circumferentially embracing the foot within the shoe
US20080110048A1 (en) * 2006-11-10 2008-05-15 Nike, Inc. Article of footwear having a flat knit upper construction or other upper construction
WO2011091325A1 (fr) * 2010-01-21 2011-07-28 Boa Technology, Inc. Guides pour systèmes de laçage
US20140245632A1 (en) * 2013-03-04 2014-09-04 Nike, Inc. Article Of Footwear Incorporating A Knitted Component With Tensile Strand
US20190021444A1 (en) * 2015-05-28 2019-01-24 Brooks Sports, Inc. Shoe constructions having upper assemblies with independently movable booties and decoupled sole assemblies
US20200100560A1 (en) * 2018-09-28 2020-04-02 Puma SE Article of footwear having a sole structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040181972A1 (en) * 2003-03-19 2004-09-23 Julius Csorba Mechanism of tying of shoes circumferentially embracing the foot within the shoe
US20080110048A1 (en) * 2006-11-10 2008-05-15 Nike, Inc. Article of footwear having a flat knit upper construction or other upper construction
WO2011091325A1 (fr) * 2010-01-21 2011-07-28 Boa Technology, Inc. Guides pour systèmes de laçage
US20140245632A1 (en) * 2013-03-04 2014-09-04 Nike, Inc. Article Of Footwear Incorporating A Knitted Component With Tensile Strand
US20190021444A1 (en) * 2015-05-28 2019-01-24 Brooks Sports, Inc. Shoe constructions having upper assemblies with independently movable booties and decoupled sole assemblies
US20200100560A1 (en) * 2018-09-28 2020-04-02 Puma SE Article of footwear having a sole structure

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