EP3097810A1 - Semelle intérieure - Google Patents

Semelle intérieure Download PDF

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Publication number
EP3097810A1
EP3097810A1 EP16171211.2A EP16171211A EP3097810A1 EP 3097810 A1 EP3097810 A1 EP 3097810A1 EP 16171211 A EP16171211 A EP 16171211A EP 3097810 A1 EP3097810 A1 EP 3097810A1
Authority
EP
European Patent Office
Prior art keywords
core element
insole
insole according
region
elevations
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Withdrawn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
EP16171211.2A
Other languages
German (de)
English (en)
Inventor
Willi Mander
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.)
Willi Mander GmbH
Original Assignee
Willi Mander GmbH
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 Willi Mander GmbH filed Critical Willi Mander GmbH
Publication of EP3097810A1 publication Critical patent/EP3097810A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
    • A43B17/006—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material multilayered
    • 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
    • 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
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient

Definitions

  • the invention relates to an insole for a shoe comprising a core element of a resilient first material embedded in a second material that is softer than the first material.
  • the core element extends at least over a forefoot region and a metatarsal region, wherein in the forefoot region it has a transverse profiling extending transversely to a sole longitudinal direction, by means of which the insole in the forefoot region is more resistant to bending in a sole transverse direction than in the sole longitudinal direction.
  • the cross-profiling of the core element is formed by a plurality of seen in the longitudinal direction of the foot successively arranged and alternating elevations and depressions.
  • Such an insole is for example from the document EP 0373 336 B1 known.
  • the sole has a plate-shaped core element, which is preferably made of a spring steel sheet.
  • the resilient plate material has, for example, a wave, meandering or zigzag-shaped transverse profiling, which is periodically repeated and formed by elevations and depressions aligned parallel to one another.
  • the publication WO 2013/167155 describes an insole with a support element in the forefoot, which is made of a hard plate material with a transverse profiling.
  • a possible material for the support element in addition to spring steel and plastic is specified.
  • the transverse profiling is uniformly oblique to a longitudinal axis of the insole.
  • the foot may tend to roll over the middle of the forefoot or the outside and not over the big toe ball or the big toe.
  • An insole according to the invention of the type mentioned above is characterized in that at least two of the elevations and / or depressions extend obliquely to each other.
  • the twisting can amount to a maximum of 40 °, preferably up to 30 °, and at least 10 °, preferably at least 15 ° ,
  • a curved rolling line is created, each perpendicular to the elevations or depressions.
  • the rotation of the individual elevations or depressions may be, for example, such that the elevations or depressions radiate to a common point or at least a common origin region, which is adjacent to the inner side of the foot outside the insole.
  • a rolling line is defined which, starting from the midfoot region of the insole, initially runs approximately parallel to the longitudinal direction of the insole and then turns towards the inside of the foot in the direction of the big toe.
  • the physiologically correct unrolling over the first beam ie the metatarsal bone associated with the big toe, leads to a fatigue-free movement and prevents long-term foot deformities.
  • the advantage of reduced longitudinal stiffness in the forefoot area while providing lateral stability in the shoe can be particularly good.
  • the core element in the midfoot region on a longitudinal arch support for rearfoot correction By the longitudinal arch support of the hindfoot, so the metatarsal and heel area of the foot is corrected in particular with respect to its rotational position about the longitudinal axis of the foot so that a rolling is directed in the direction of the big toe ball.
  • the according to the application physiologically correct rolling over the 1st beam is supported so on.
  • the longitudinal arch structure which is significantly raised compared to the rest of the core element, also leads to increased longitudinal stability of the insole in the midfoot area. This increased longitudinal stability supports the arch of the foot up to the foot section, starting from the rolling of the foot. This also leads to a rolling in the physiologically preferred direction.
  • the core element is made of a plastic, for example a PET (polyethylene terephthalate) plastic, preferably in an injection molding process.
  • the core element may be made of a so-called organic sheet by forming.
  • An organic sheet is a sheet material made of fiber-reinforced plastic.
  • fibers e.g. Glass or carbon fibers (carbon fibers) are used.
  • Organic sheet is manufactured as a semi-finished product, which is subsequently produced by a forming process, e.g. a punching and pressing process, is brought into the desired shape with the desired profile.
  • the production of plastic allows a flexible shaping of the core element, so that the transversely profiled forefoot and the region in the longitudinal direction in the metatarsal region and the longitudinal arch supporting area can be formed in more detail.
  • a better shock absorption behavior is achieved by the plastic core element compared to the spring steel material.
  • the plastic material can still be processed with simple means even after the core element has been produced.
  • recesses and openings can be removed from the core element in order to be able to individually adapt the insole to the needs of a diseased foot in particular.
  • Recesses and breakthroughs can be introduced, for example, in the forefoot, for example, to provide extra soft spots of the insole, which at diabetic foot diseases specifically relieve the sole of the foot.
  • a thermoplastic is used as a plastic
  • changes in shape of the longitudinal arch support adapted to the individual foot can also be made individually.
  • breakthroughs can also be introduced during injection molding.
  • a groove or zigzag cross-profile is provided.
  • webs extending transversely over the core element along the elevations and / or the depressions are formed which further reinforce the transverse stability of the core element in the forefoot region.
  • Such webs may be formed both on the upper side of the core element, preferably in the depressions, and on the underside of the insole, where they are then preferably arranged below the elevations. In this arrangement, the lands do not contribute to an increase in the thickness of the core element in the forefoot area.
  • the core element extends into the heel area of the foot, wherein a recess which is preferably open to the rear is arranged in the heel area.
  • the core element stabilizes the insole into the heel area, wherein at the same time the insole is formed essentially by the softer second material through the recess of the heel region, so that a good cushioning is provided for the body weight carried by the heel.
  • additional damping elements can be inserted into the recess in the heel area or into the recesses or openings in the forefoot area, for example gel-filled cushions.
  • the second material in which the core element is embedded is a PU (polyurethane) foam.
  • PU polyurethane
  • the PU foam in the manufacturing process is given a very good adhesion, so that the shoe insert remains dimensionally stable over a variety of bending cycles.
  • the combination of molded plastic and PU foam for embedding also has excellent shock absorption properties.
  • the insole described in a known manner a cover layer of a known foot-friendly Material, for example, made of a suede material or leather.
  • Fig.1 shows an according to the application core element for a shoe insert.
  • Fig.2 shows the core element in an isometric oblique view, wherein also in this view an upper side of the core element is visible.
  • Fig. 3 shows the core element in a side view and Figure 4 gives the in Figure 3 by a dash-dotted circle marked section in an enlargement again.
  • like reference numerals designate like elements. For elements which are present several times on the core element shown, only a few are provided with reference numerals for reasons of clarity.
  • the core element shown is made in one piece from plastic in an injection molding process, for example, PET plastic can be used as a material.
  • the core element is preferably produced in an injection molding process.
  • Thermoplastics other than the named PET are also suitable for a core element in this manufacturing process.
  • the core element shown in the figures is embedded in a softer plastic.
  • the material of this softer plastic is a foam material, in particular a PU foam.
  • the softer plastic preferably completely covers the upper side of the core element, with a covering layer of a third material, for example a velor layer or a leather layer, generally closing off the shoe insert towards the foot. Downwards, so pointing to the shoe, a covering of the core element is also provided by the softer plastic material. If necessary, individual sections of the Core element here, however, protrude to the edge of the insole. The same applies to the sides of the insole.
  • the one-piece core element can be roughly subdivided into three regions, a forefoot region 10, a midfoot region 20 and a heel region 30.
  • the core element extends at least over the forefoot region 10 and the midfoot region 20 and optionally also into the heel region 30, as in the illustrated embodiment into it.
  • the core element is substantially flat and plate-shaped, its thickness being in the range of a few millimeters.
  • the core element is provided with a transverse profiling, in which elevations 11, hereinafter also called wave crests 11, and recesses 12, hereinafter also referred to as wave troughs 12, alternate. Between the wave crests 11 and the troughs 12 in the illustrated embodiment, the profiling is substantially zigzag, as particularly good at the enlargement of the section in the Figure 4 can be seen.
  • other courses can be selected, for example a rounded, for example a corrugated, for example sinusoidal course, or a meandering course.
  • the wave crests 11 or wave troughs 12 each run straight, but in the illustrated embodiment they are not arranged parallel to one another. Rather, adjacent wave peaks 11 and wave troughs 12 extend in a fan-like manner about a vertical axis to each other. If the respective outer wave crests 11 or wave troughs 12, which are positioned at the midfoot region 20 and at the front end of the core element, are mentally prolonged, they meet at a point which lies adjacent to the inner side of the foot (FIGS Fig.1 this point would be above the map of the core element).
  • the outer wave crests 11 or wave troughs 12 in the present case enclose an angle of approximately 30 °.
  • the total angle of rotation thus defined may be in a range between 0 and 40 ° and preferably between 15 and 30 °. The total rotation is divided approximately equally to the rotation of adjacent wave peaks 11 and troughs 12 to each other.
  • the core element and thus the insole achieve increased lateral stability.
  • This is reinforced in the illustrated embodiment by the fact that on the upper side of the core element 12 extending webs 13 are formed by the recess of the wave troughs.
  • Comparable webs 14 are formed on the underside below the wave crests 11.
  • the webs 14 arranged on the underside extend so far downwards that they essentially form a plane with the wave troughs 12.
  • the formed on the upper side 13 in the troughs 12 webs 13 are made less high, so they do not reach down to the level defined by the peaks 11 level.
  • the webs 13 could also be designed to be correspondingly higher. In the illustrated case they are less highly trained so as not to be pushed through by the softer material in which the core element is embedded and to be perceived as disturbing by the foot.
  • the core element in the forefoot region 10 is easily bendable in the longitudinal direction. Due to the fan-like arrangement of the wave crests 11 and troughs 12, in addition supported by the also in the direction of the wave crests 11 and troughs 12 extending webs 13, 14, the core element takes when rolling not the shape of a section of a lateral surface of a cylinder, but the one Section of a lateral surface of a cone, wherein the tip of the cone is given by the imaginary intersection of the extended wave crests 11 and troughs 12.
  • the rolling line 16 essentially runs in such a way that it is perpendicular to each wave crest 11 and wave trough 12. Due to the non-parallel arrangement of the wave peaks 11 and troughs 12, the rolling of the foot along the rolling line 16 in the direction of the inside of the insole and thus follows the physiologically correct movement in the direction of the big toe.
  • This rolling line 16 can follow the foot but only with correct foot position.
  • the correct foot position, with which a rolling process begins, is determined by the position and in particular the rotational position of the metatarsus about a longitudinal axis of the foot.
  • a longitudinal arch support 22 is laterally formed on the midfoot region 20 starting from a substantially flat surface 21. As in the Figures 2 and 3 is clearly visible, this longitudinal arch support 22 protrudes in height significantly beyond the height of the transverse profiling in the forefoot 10 addition.
  • the foot is correctly positioned so that its weight distribution and dynamics of movement of the desired rolling line 16 can follow.
  • the longitudinal arch support 22 also leads in the midfoot region 20 to a significantly increased longitudinal stability of the core element and thus of the insole.
  • the flat surface 21 of the midfoot region extends in the illustrated embodiment into the heel region 30.
  • a recess 31 which is open to the rear is introduced into the heel region 30 in order to achieve a good padding in the heel region.
  • a depression can also be incorporated into the core element. It is further contemplated to use gel pads in this recess or recess to further enhance padding and cushioning in the heel area.
  • Openings or recesses provided in the core element may also be provided in the forefoot region 10, which optionally has a gel cushion in its region. In this way, in the case of a diseased, in particular diabetic, foot, a pressure load on the sole of the foot can be reduced locally.
  • the core element described above is preferably embedded in a PU foam.
  • the core element is placed in a mold which is adapted on one side of a shoe inner mold and on the opposite side has a last, which represents the foot shape.
  • a cover layer is preferably applied, which later forms the surface of the insole resting against the foot.
  • positioning pins 15 are formed laterally on the core element, which project up to the edge of the mold and thus fix the core element with respect to its lateral orientation in the foaming process.
  • the positioning pins 15 are arranged only in the forefoot portion 10. It goes without saying that comparable positioning pins, if necessary, can also be provided in the midfoot region 20 or in the heel region 30.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP16171211.2A 2015-05-26 2016-05-25 Semelle intérieure Withdrawn EP3097810A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015102695.1U DE202015102695U1 (de) 2015-05-26 2015-05-26 Einlegesohle

Publications (1)

Publication Number Publication Date
EP3097810A1 true EP3097810A1 (fr) 2016-11-30

Family

ID=56080325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16171211.2A Withdrawn EP3097810A1 (fr) 2015-05-26 2016-05-25 Semelle intérieure

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EP (1) EP3097810A1 (fr)
DE (1) DE202015102695U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3357366A1 (fr) * 2017-02-02 2018-08-08 Adidas AG Carte de semelle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021003271U1 (de) 2021-10-20 2022-08-25 Fritz Curtius Paar Schuhe mit Außensohlen, Schuhinnensohlen und Struktursohlen.
DE102021005238A1 (de) 2021-10-20 2023-04-20 Fritz Curtius Paar Schuhe mit Außensohlen, Schuhinnensohlen und Struktursohlen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0373336B1 (fr) 1988-12-13 1992-12-30 Helmut Mayer Pièce d'insertion pour chaussure
DE202013003797U1 (de) * 2013-04-23 2013-05-27 Fleximed Ag Einlegesohle
WO2013167155A1 (fr) 2012-05-09 2013-11-14 Norbert Schmid Gmbh & Co. Kg Semelle intérieure pour chaussures

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059030B4 (de) * 2008-11-26 2014-09-25 Helmut Mayer Gbr Mbh Einlegesohle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0373336B1 (fr) 1988-12-13 1992-12-30 Helmut Mayer Pièce d'insertion pour chaussure
US5720118A (en) * 1988-12-13 1998-02-24 Helmut Mayer Inlay for a shoe
WO2013167155A1 (fr) 2012-05-09 2013-11-14 Norbert Schmid Gmbh & Co. Kg Semelle intérieure pour chaussures
DE202013003797U1 (de) * 2013-04-23 2013-05-27 Fleximed Ag Einlegesohle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3357366A1 (fr) * 2017-02-02 2018-08-08 Adidas AG Carte de semelle
US10231514B2 (en) 2017-02-02 2019-03-19 Adidas Ag Sole board
US11197515B2 (en) 2017-02-02 2021-12-14 Adidas Ag Sole board
EP4122349A1 (fr) * 2017-02-02 2023-01-25 adidas AG Planche de semelle
US11844399B2 (en) 2017-02-02 2023-12-19 Adidas Ag Sole board

Also Published As

Publication number Publication date
DE202015102695U1 (de) 2016-08-29

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