EP3064080A1 - Semelle de chaussure, plus particulièrement pour chaussures de sport et chaussure équipée d'une telle semelle - Google Patents

Semelle de chaussure, plus particulièrement pour chaussures de sport et chaussure équipée d'une telle semelle Download PDF

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Publication number
EP3064080A1
EP3064080A1 EP16155852.3A EP16155852A EP3064080A1 EP 3064080 A1 EP3064080 A1 EP 3064080A1 EP 16155852 A EP16155852 A EP 16155852A EP 3064080 A1 EP3064080 A1 EP 3064080A1
Authority
EP
European Patent Office
Prior art keywords
sole
footwear
deformable portion
extension
adjusting
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.)
Withdrawn
Application number
EP16155852.3A
Other languages
German (de)
English (en)
Inventor
Giorgio Grandin
Dino MACCARI
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.)
Tecnica Group SpA
Original Assignee
Tecnica Group SpA
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 Tecnica Group SpA filed Critical Tecnica Group SpA
Publication of EP3064080A1 publication Critical patent/EP3064080A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0427—Ski or like boots characterised by type or construction details
    • A43B5/0435—Adjustment of the boot to the foot
    • A43B5/045—Adjustment of the boot to the foot to the width of the foot
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/141—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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/26—Footwear characterised by the shape or the use adjustable as to length or size

Definitions

  • the present invention relates to a footwear sole, more particularly to a sports footwear sole.
  • the invention relates to a footwear sole the extension of which in the transverse direction can be adjusted.
  • ski boots In the case of ski boots, not only does the conformity of the footwear to the morphology of the foot of the particular user increases the user's comfort, but it also improves the maneuverability of the ski, since even minimal movements of the user's foot are transmitted effectively to the ski boot and from this to the ski.
  • footwear were developed having a transversely adjustable sole, so that the transverse width of the sole could be increased or reduced for adapting it to users having a wider or narrower plantar surface, respectively, than the average one.
  • ski boots were developed comprising a substantially soft inner liner and a substantially rigid outer shell, in which the sole of the outer shell is adjustable in a transverse direction in order to adapt the shell - and consequently the ski boot as a whole - to users with a wider or narrower plantar surface than the average one.
  • the documents CH 486 857 and CH 515 002 both describe a ski boot comprising a sole consisting of two separate side portions connected to each other by means of an elastic joint interposed therebetween and extending in the longitudinal direction; adjusting screws allow to adjust the transverse extension of the elastic joint by virtue of its deformability, so as to vary the width of the sole.
  • Document EP 1 683 434 shows a substantially analogous solution applied to a generic sports footwear.
  • the discontinuity represented by the elastic joint brings about a very remarkable localized reduction in the flexional and torsional rigidity of the sole.
  • Document EP 2 335 506 describes a sole intended for the shell of ski boot and comprising a slot extending in a substantially longitudinal direction and adjusting means for controlling deformation of said slot so as to bring closer / spread apart the edges thereof: in this way the overall width of the sole of the ski boot shell can be customized.
  • said slot constitutes a passage to the outside, which may involve snow and water infiltrations in the boot, unless specific sealing elements are provided, which would in any case involve a more complex and - therefore - more cost-expensive structure.
  • the main object of the present invention is therefore to provide a footwear sole that is adjustable in the transverse direction while at the same time being free from the drawbacks described above.
  • Another object of the present invention is to provide a footwear sole that is adjustable in the transverse direction while at the same time having a simple and cost-effective structure, with a limited number of components.
  • the footwear sole according to invention comprises a deformable portion which is made of the same material as the rest of the sole and is made without discontinuity with the rest of the sole, the non-uniformity in the features of flexional and torsional rigidity are remarkably limited with respect to known solutions.
  • Said deformable portion extends in the longitudinal direction of the footwear sole - along the longitudinal axis of said sole or in parallel thereto - at least over a substantial portion of the length of said sole.
  • said deformable portion is made as a bellows-like portion, the pleats of which can be more or less compressed / stretched so as to vary the extension of said bellows-like portion in the transverse direction and therefore, in the end, of the sole as a whole.
  • the deformable portion is made as a single piece with the rest of the sole, during a single step of injection molding.
  • the deformable portion is made as a an element which is double-molded or over-molded with respect to the rest of the sole; such construction allows, for the same material, to obtain, for the deformable portion, a lower rigidity than the rest of the sole.
  • the deformable portion is deformed as a consequence of the insertion of the user's foot into the footwear.
  • the footwear sole of the invention preferably comprises an adjusting arrangement for adjusting said deformable portion in order to vary the extension thereof in a transverse direction.
  • said adjusting arrangement is configured so as to vary the extension of the deformable of the sole by overcoming its resistance and to adjust the deformation of said deformable portion to a desired value so that the sole maintains unchanged its flexional and torsional rigidity.
  • the adjusting arrangement comprises one or more rigid members, to which the deformable portion of the sole is anchored at one or both of its longitudinal ends and which support the adjusting elements of said deformable portion.
  • inside means the side of the sole facing the user's foot and the term “outside” means the side of the sole facing the outer environment.
  • the preferred embodiment of the invention described below in detail refers to the application of the invention to a sole for a ski boot, and more particularly to a sole for the outer shell of a ski boot.
  • Non-limiting examples of application of the invention comprise footwear for skates (both roller skates and ice skates), mountaineering and trekking footwear, motorcycle footwear and safety footwear.
  • FIG. 1 and 2 there is schematically illustrated the sole 1 of a substantially rigid outer shell of a ski boot.
  • said sole 1 comprises a deformable portion 3 extending longitudinally along said sole 1 and is arranged between two side portions 5a, 5b.
  • the deformable portion 3 can extend along the longitudinal axis L of the sole 1 (as in the illustrated example) or in parallel thereto.
  • the deformable portion 3 can extend over the whole length of the sole 1 (as in the illustrated example) or over a portion of said length.
  • the deformable portion 3 is made of the same material as the side portions 5a, 5b and is made continuously with said side portions and without discontinuity therewith.
  • said deformable portion can be made as a single piece with the side portions 5a, 5b or, alternatively, as an element double-molded or over-molded with respect to said side portions, but in any case of the same material as said side portions and without junctions between the different portions.
  • the deformable portion 3 is therefore deformable not by virtue of the material of which it is made, but rather because of its geometrical configuration, which allows to vary the extension thereof in the transverse direction, i.e. to vary the distance between the two side portions 5a, 5b.
  • the deformable portion 3 is made as a bellows comprising a plurality of longitudinally oriented pleats 7, as better visible in Figure 3 :
  • the sole 1 has no areas of discontinuity, which ensures more robustness and integrity of the sole and more uniform features, especially regarding its flexional and torsional flexibility.
  • the deformable portion 3 of the sole 1 is anchored at its opposite longitudinal ends to corresponding rigid members 9, 11.
  • said rigid members are made as plates 9, 11 made of a material having a much higher stiffness than the material of which the sole 1 is made, and arranged at the toe region and at the heel region of the sole 1, respectively.
  • Fastening means 13 - for example in the form of screws or the like - are provided for firmly anchoring each of the plates 9,11 to the sole 1, at the corresponding ends of the deformable portion 3 of said sole.
  • the plates 9, 11 support the adjusting elements 15 for adjusting the transverse extension of the deformable portion 3, said adjusting elements 15 being arranged on the plates 9, 11 at a distance from the fastening means 13 enough to allow adjustment of the deformation of the deformable portion 3 in the transverse direction.
  • Said adjusting elements can be arranged on one side only or - preferably - on both sides of the deformable portion 3, so as to be capable of exerting a traction / compression force onto the pleats 7 of the deformable portion 3 on one side only or on both sides, respectively.
  • the adjusting elements can be configures so as to cause a symmetric traction / compression of the deformable portion 3 or so as to selectively cause a traction on either side of the deformable portion 3, respectively.
  • two pair of adjusting elements 15 are provided, namely a first pair on a first plate 9 close to the toe portion of the sole 1 and a second pair on a second plate 11 close to the heel portion of the sole 1, each pair comprising two elements arranged on opposite sides of the deformable portion 3.
  • the plate 9 with its corresponding fastening means 13 and corresponding adjusting elements 15 is also shown in more detail in Figure 4 .
  • the adjusting elements 15 consist of corresponding eccentric elements.
  • Each eccentric element 15 has a cylindrical portion fitted in a corresponding through-hole formed in the rigid plate 9, 11, and an eccentric portion engaged in a corresponding seat in the sole 1, in the proximity of the deformable portion 3 of said sole.
  • Rotation of the eccentric element 15 can be effected by means of an appropriate tool 100 - for example an Allen wrench or a lever specific for amplifying the torque to be applied - and to this aim each eccentric element 15 has a seat 15a in which said tool 100 can engage.
  • an appropriate tool 100 for example an Allen wrench or a lever specific for amplifying the torque to be applied - and to this aim each eccentric element 15 has a seat 15a in which said tool 100 can engage.
  • the adjustment arrangement of the sole according to the invention comprises at least one adjusting element 15.
  • the presence of a pair of eccentric elements 15 on each of the plates advantageously allows separate, independent adjustment of the deformation of the deformable portion 3 on the medial side and on the lateral side of the sole 1.
  • the invention allows to achieve the objects set forth above, as it allows to combine the possibility of adjusting the transverse extension of a footwear sole, for adapting it to users with a more or less wide plantar surface, with the need of avoiding any discontinuity and non-uniformity in the structural features of the sole.
  • any other geometrical configuration of the deformable portion that allows to vary the extension thereof in the transverse direction can also be used.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP16155852.3A 2015-03-06 2016-02-16 Semelle de chaussure, plus particulièrement pour chaussures de sport et chaussure équipée d'une telle semelle Withdrawn EP3064080A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A000397A ITUB20150397A1 (it) 2015-03-06 2015-03-06 Suola per calzatura, in particolare per calzatura sportiva, e calzatura provvista di una suola siffatta

Publications (1)

Publication Number Publication Date
EP3064080A1 true EP3064080A1 (fr) 2016-09-07

Family

ID=53267496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16155852.3A Withdrawn EP3064080A1 (fr) 2015-03-06 2016-02-16 Semelle de chaussure, plus particulièrement pour chaussures de sport et chaussure équipée d'une telle semelle

Country Status (3)

Country Link
US (1) US20160255906A1 (fr)
EP (1) EP3064080A1 (fr)
IT (1) ITUB20150397A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700105722A1 (it) 2017-09-21 2019-03-21 Tecnica Group Spa Scarpone da sci, in particolare scarpone da sci alpinismo
JP2019154852A (ja) * 2018-03-14 2019-09-19 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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH486857A (fr) 1969-06-10 1970-03-15 Bernard Mottet Willy Semelle de chaussure de ski réglable
CH515002A (fr) 1969-11-14 1971-11-15 Bernard Mottet Willy Chaussure de ski de largeur réglable
EP1683434A1 (fr) 2005-01-25 2006-07-26 Diadora-Invicta Spa Chaussure avec système d'ajustement de la largeur
WO2007048678A1 (fr) * 2005-10-27 2007-05-03 Garmont S.R.L. Chaussure de ski
EP2335506A1 (fr) 2009-12-21 2011-06-22 Head Technology GmbH Chaussure à ajustement amélioré
US20150047222A1 (en) * 2013-08-19 2015-02-19 Nike, Inc. Article Of Footwear With Adjustable Sole

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425186A (en) * 1994-04-15 1995-06-20 Hoyt; David Overshoe with an accordian type sole
DE59601983D1 (de) * 1995-03-09 1999-07-01 Dassler Puma Sportschuh Schuhsohle und schuh mit einer derartigen schuhsohle
US5729912A (en) * 1995-06-07 1998-03-24 Nike, Inc. Article of footwear having adjustable width, footform and cushioning
WO2002051273A2 (fr) * 2000-12-22 2002-07-04 The Timberland Company Construction pour chaussure
US20040107604A1 (en) * 2002-12-10 2004-06-10 Ki-Ho Ha Length adjustable shoe
US7634861B2 (en) * 2004-05-21 2009-12-22 Nike, Inc. Footwear with longitudinally split midsole for dynamic fit adjustment
US20060130371A1 (en) * 2004-12-16 2006-06-22 Brett Schneider Expansion system to increase the size of a shoe
ITTV20050203A1 (it) * 2005-12-29 2007-06-30 Roces Srl Struttura di scarpetta interna, particolarmente per una calzatura sportiva.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH486857A (fr) 1969-06-10 1970-03-15 Bernard Mottet Willy Semelle de chaussure de ski réglable
CH515002A (fr) 1969-11-14 1971-11-15 Bernard Mottet Willy Chaussure de ski de largeur réglable
EP1683434A1 (fr) 2005-01-25 2006-07-26 Diadora-Invicta Spa Chaussure avec système d'ajustement de la largeur
WO2007048678A1 (fr) * 2005-10-27 2007-05-03 Garmont S.R.L. Chaussure de ski
EP2335506A1 (fr) 2009-12-21 2011-06-22 Head Technology GmbH Chaussure à ajustement amélioré
US20150047222A1 (en) * 2013-08-19 2015-02-19 Nike, Inc. Article Of Footwear With Adjustable Sole

Also Published As

Publication number Publication date
ITUB20150397A1 (it) 2016-09-06
US20160255906A1 (en) 2016-09-08

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