EP2413728B1 - Sohleneinheit für schuhwerk und damit versehenes schuhwerk - Google Patents

Sohleneinheit für schuhwerk und damit versehenes schuhwerk Download PDF

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Publication number
EP2413728B1
EP2413728B1 EP10718095.2A EP10718095A EP2413728B1 EP 2413728 B1 EP2413728 B1 EP 2413728B1 EP 10718095 A EP10718095 A EP 10718095A EP 2413728 B1 EP2413728 B1 EP 2413728B1
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EP
European Patent Office
Prior art keywords
ply
water vapor
outsole
layer
comfort
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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.)
Not-in-force
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EP10718095.2A
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German (de)
English (en)
French (fr)
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EP2413728A1 (de
Inventor
Stane Nabernik
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.)
WL Gore and Associates GmbH
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WL Gore and Associates GmbH
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Publication of EP2413728A1 publication Critical patent/EP2413728A1/de
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Publication of EP2413728B1 publication Critical patent/EP2413728B1/de
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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
    • A43B1/00—Footwear characterised by the material
    • A43B1/02—Footwear characterised by the material made of fibres or fabrics made therefrom
    • A43B1/04—Footwear characterised by the material made of fibres or fabrics made therefrom braided, knotted, knitted or crocheted
    • 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
    • A43B13/42—Filling materials located between the insole and outer sole; Stiffening materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/06—Footwear with health or hygienic arrangements ventilated
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/12—Special watertight footwear
    • A43B7/125—Special watertight footwear provided with a vapour permeable member, e.g. a membrane

Definitions

  • Footwear with a waterproof and water vapor permeable shaft has been available for a long time, so that such footwear, despite being watertight in the shaft area, can give off sweat moisture. So that even in the sole region sweat moisture can escape, it has gone over to a sole structure, which has an outsole with through-thickness extending through openings and above a waterproof and water vapor permeable sole functional layer, for example in the form of a membrane.
  • a sole structure which has an outsole with through-thickness extending through openings and above a waterproof and water vapor permeable sole functional layer, for example in the form of a membrane.
  • An example shows the EP 0 382 904 A2 whose outsole has passage openings in the form of microperforations, with a corresponding limitation of the water vapor permeability.
  • a further protective layer is arranged between the membrane and the net-like protective layer, which is, for example, a felt layer.
  • FIG. 2007/101624 A1 Another example of very large sole openings shows the WO 2007/101624 A1 according to which the large passage openings of the outsole are stabilized by means of stabilizing webs and / or stabilizing gratings. These wear in the through holes fitted water vapor permeable, textile material, such as felt-like material.
  • the shoe sole composite constructed in this way is connected to a shaft whose shaft bottom is closed with a watertight and water vapor permeable shaft bottom functional layer, so that the entire shoe is waterproof and permeable to water vapor.
  • Particularly suitable for the textile material is a fiber layer which has at least two fiber components differing in their melting temperatures, wherein at least a portion of a first fiber component has a first melting temperature and a first softening temperature range below it and at least a portion of a second fiber component has a second melting temperature and an underlying second softening temperature range, and the first melting temperature and the first softening temperature range are higher than the second melting temperature and the second softening temperature range and wherein the fiber layer is mechanically thermally solidified due to thermal activation of the second fiber component having a second softening temperature range adhesive softening temperature while maintaining water vapor permeability in the thermally consolidated range.
  • either the passage opening or optionally a plurality of passage openings of the outsole may be closed with individual pieces of the textile material or all passage openings of the outsole are closed with a single piece of textile material.
  • the textile material has two functions. On the one hand, it serves to stabilize the sole structure, in particular in view of the fact that an outsole with large openings itself can not sufficiently contribute to the stabilization of the sole structure. Because the textile material is formed with a relatively high inherent stability, which benefits the overall stability of the sole structure. On the other hand, in the finished footwear, for example according to WO 2007/101624 A1 , above the sole construction a waterproof, water vapor permeable membrane, which is protected by the textile material from damage by foreign bodies such as stones, which could damage the membrane.
  • Particularly suitable for the textile material are polymers which are selected, for example, from PES (polyester), polypropylene, PA (polyamide) and mixtures of polymers.
  • the textile material consists of a fiber composite in the form of a thermally bonded mechanically bonded and additionally surface-bonded by thermal surface treatment nonwoven fabric with two fiber components, which are each constructed with polyester fibers.
  • the first fiber component having the higher melting temperature forms a carrier component of the fiber composite and the second fiber component having the lower melting temperature forms a solidification component.
  • polyester fibers with a more than 180 ° C melting temperature used polyester fibers with a more than 180 ° C melting temperature used.
  • polyester polymers that have different melting temperatures and corresponding underlying softening temperatures.
  • a polyester polymer having a melting temperature of about 230 ° C is selected for the first component, while a polyester polymer having a melting temperature of about 200 ° C is selected for the second fiber component.
  • the second fiber component may be a core-sheath fiber wherein the core of this fiber is a polyester having a softening temperature of about 230 ° C and the sheath of this fiber is polyester having an adhesive softening temperature of about 200 ° C.
  • Such a fiber component with two fiber portions of different melting temperature is also referred to as "Bico". Further details of such textile material, which may be, for example, felt-like material, can be found in the already mentioned WO 2007/101624 A1 ,
  • a sole unit 115 to be improved comprising an outsole 117 provided with outsoles through holes 119 for obtaining a high water vapor permeability, and a barrier layer 121 forming the upper side of the outsole 117 in the area of the outsole openings 119 for mechanical protection of a finished shoe above
  • This barrier layer 121 located waterproof, water vapor permeable shaft bottom membrane serves a to be connected to the sole unit 115 shaft assembly.
  • Soles of this type are usually glued or molded to the shaft assembly.
  • materials such as rubber or plastic, for example polyurethane (PU), which are relatively hard and heavy materials, are used. This affects the carrying and walking comfort.
  • the outsole passage openings 119 extend over a relative large height, so that in the outsole through holes 119 fixing dirt is difficult to remove.
  • Out JP 9-140404 A is a waterproof in the sole area, water vapor permeable shoe known, constructed with a shaft assembly with a waterproof, water vapor permeable element having shaft bottom and a water and water vapor permeable composite sole with a perforated outsole layer.
  • the waterproof, water vapor permeable elements is formed in three layers and contains as a central layer a waterproof, water vapor permeable membrane on top of which a fine-meshed textile layer is arranged and on the underside of which is a coarse-meshed textile layer which - if this is also not mentioned - a certain may offer mechanical protection for the usually sensitive membrane against destructive action, for example by foreign bodies such as pebbles, which have penetrated the perforation of the outsole layer.
  • a midsole which is formed only circumferentially and is replaced by a material such as cork or sponge for weight reduction in a central region.
  • a material such as cork or sponge for weight reduction in a central region.
  • cork tends to crumble, thus in turn can lead to mechanical stress on the sensitive membranes, and sponge but also cork can fully suck through the perforations of the outsole layer with water, which not only worsens the walking comfort but also to a significant increase in weight leads cork and sponge materials whose water vapor permeability is relatively low in relation to a perforated outsole layer, especially when perforated by means of large-sized through holes, and thus a water vapor permeability, as they can reach with a perforated with large through holes outsole position.
  • the WO 2007/137604 A1 shows a water vapor permeable and waterproof sole unit for shoes with a shaft bottom, which has no water vapor permeable and waterproof membrane.
  • the sole unit is arranged below the shaft bottom and has a water vapor permeable and waterproof membrane.
  • a protective element is arranged below the membrane.
  • a filling material layer is arranged above the membrane to allow a watertight connection of the peripheral edge of the membrane with the material of a molded midsole and to firmly connect the sole unit to the underside of the shaft bottom through the molded midsole material.
  • the WO 2007/012415 A1 shows a water vapor permeable and waterproof shoe with a shaft assembly whose shaft bottom is provided with a water vapor permeable and waterproof membrane.
  • an insole and a protective element are arranged between an outsole and the shaft bottom membrane.
  • a first protective element and a second protective element for protecting the shaft bottom membrane from objects that can penetrate through holes formed in the sole are arranged below the shaft bottom membrane.
  • the present invention provides a sole unit for footwear which, at the same time as improving comfort due to lighter weight and / or increased shock absorption, provides better mechanical protection for a waterproof and water vapor permeable functional layer, for example in the form of a membrane, located above the sole unit, with easier removability of dirt stuck in sole holes.
  • a water-vapor-permeable sole unit has an outsole layer constructed with an outsole material, possibly formed from a plurality of sections and / or with outsole parts disposed thereunder, which reduces thickness within a peripheral region by means of a recess extending from a top surface of the outsole layer opposite a running surface of the sole unit is provided by their thickness extending outsole layer passage openings.
  • this sole unit has a at least partially disposed in the recess of the outsole layer, extending over only a partial height of the recess extending water vapor-permeable barrier layer, which is constructed with a formed against a pushing against foreign bodies barrier material.
  • this sole unit has a above the barrier layer in the recess arranged water vapor permeable comfort layer, which is constructed with a comfort layer material, which has a lower hardness and / or a lower specific gravity than the outsole material.
  • the sole unit according to the invention is designed for connection to a sole-side lower end region of a shaft arrangement which has a shaft bottom provided with a watertight, water-vapor-permeable functional layer.
  • the barrier layer is disposed between the outsole layer and the comfort layer, that is, at a distance from the shaft bottom membrane located above the sole unit in the finished shoe and interposing the comfort layer between the barrier layer and the shaft bottom membrane, the barrier layer can advantageously be made of a much coarser and / or more robust and possibly build rougher material than if the barrier layer were in close proximity to the shaft bottom membrane.
  • the comfort layer located between the barrier layer and shaft bottom membrane which is made of relatively soft material, especially when a good cushioning is to be achieved can provide, the shaft bottom membrane against a coarse and / or rough barrier layer padding protection. Therefore, the barrier layer may even be made of a material having such a rigidity that it can contribute to the stabilization of the sole unit, in particular if soft comfort layer material is used to obtain a good cushioning effect.
  • the barrier material when the barrier material is also formed to stabilize the sole unit, in one embodiment of the invention, a thermally consolidated fiber material of a degree of solidification which allows a high water vapor permeability is used as the barrier material.
  • Such barrier material therefore need not be provided with through openings. And even if you provide this fiber material to increase the water vapor permeability through holes, these through holes in relation to the through holes of outsole layer and possibly comfort position, then, if the comfort layer consists of a per se water vapor impermeable material, be quite small.
  • the barrier layer forms a dirt barrier for debris entering the outsole ply penetrations against intrusion into the comfort ply apertures.
  • a so-called “joint piece” can be arranged or even integrated in the comfort position. This is especially needed for shoes with heel to give the shoe the necessary torsional and bending stability.
  • this joint piece can be made of metal and have sharp edges, which in turn can potentially damage the membrane in the shaft bottom area. This danger is not given in this embodiment due to the comfort situation.
  • Hinge be designed so that the water vapor passage through the sole unit is impaired as little as possible.
  • the comfort layer is constructed with a moisture vapor permeable material. Its water vapor permeability can be set so high that perforations of the comfort situation is not required.
  • the comfort layer is constructed with a material selected from the group of materials leather, open cell foam material, water vapor permeable textile knitted fabric, water vapor permeable textile nonwoven fabric and water vapor permeable felted goods and combinations thereof.
  • the comfort layer is constructed with a multi-ply knitted fabric with staggered stitches.
  • This multi-layeredness with simultaneous displacement of the meshes of the individual layers against each other allows a good mechanical penetration barrier for foreign bodies such as pebbles, and to a certain extent also nails, shards or the like, and thus a high mechanical protection of one above the sole unit at high water vapor permeability reach located shaft bottom membrane against damage by such foreign body.
  • the comfort layer is constructed with water-vapor-permeable textile material which is at least partially selected from the material group polyamide, polyester and polypropylene plastic material.
  • the comfort layer when the comfort layer is constructed with a material which is not permeable to water vapor per se, in one embodiment of the invention, the comfort layer is with its thickness extending comfort layer passage openings provided which overlap at least partially with the outsole passage openings.
  • the highest total water vapor permeability is achieved for the sole unit when as many of the outsole layer through holes and the comfort layer through holes are equal in size and aligned with each other.
  • the comfort layer is constructed with a selected from the material group polyurethane (PU) and ethylene vinyl acetate (EVA) material, which may also be foamed material.
  • PU polyurethane
  • EVA ethylene vinyl acetate
  • PU polyurethane
  • EVA ethylene vinyl acetate
  • a soft elastic type or known for its soft elastic properties EVA can be selected.
  • a foamed plastic material can be selected for the comfort position.
  • the comfort layer can also be designed as a classic midsole, which can be visible laterally from the outside on the sole.
  • the comfort layer passage openings extend with respect to a running surface of the sole unit at such an oblique angle through the comfort layer that oblique wall portions of the comfort layer passage openings arise, which oppose the penetration of foreign bodies.
  • the comfort layer in turn acts as a barrier against the penetration of foreign bodies to a shaft bottom membrane located above the sole unit.
  • At least one of the outsole ply apertures and / or the comfort ply apertures has an area of at least 0.5 cm 2 .
  • the outsole layer through openings and / or the comfort layer passage openings may also have a larger surface area, namely at least one area of at least 1 cm 2, or also at least 5 cm 2 , or an area of at least 20 cm 2 , or an area of at least 40 cm 2 .
  • the comfort algae have water vapor permeability in both the horizontal and vertical directions.
  • the comfort layer can also be formed with lateral openings to the outside, wherein at least one remaining sole layer of the sole unit designed according to, for example, provided with lateral outlet openings.
  • the comfort layer is formed with an air-permeable at least in the vertical direction layer in the form of an air-permeable spacer structure.
  • this distance structure can also be permeable to air in the horizontal direction.
  • the air permeable spacer structure is constructed with a sheet and a plurality of spaced apart from the sheet perpendicular and / or at an angle between 0 ° and 90 ° extending distance elements.
  • the spacer elements of the spacer structure are formed as nubs.
  • the air-permeable spacer structure is constructed with two planar structures arranged parallel to one another and the two flat structures are connected to one another in an air-permeable manner by means of the spacer elements and kept at a distance.
  • the spacers are constructed with a consolidated knit.
  • the spacers are wave-shaped or sawtooth-shaped.
  • the barrier layer is designed for mechanical stabilization of the sole unit.
  • the barrier layer is constructed with a fiber composite having at least two fiber components which differ in their melting temperature.
  • a first fiber component has a first melting temperature and an underlying first softening temperature range
  • at least a portion of a second fiber component has a second melting temperature and an underlying second softening temperature range
  • the first melting temperature and the first softening temperature range are higher than the second melting temperature and the second softening temperature range.
  • the fiber composite is thermally solidified due to thermal activation of the second fiber component with a lying in the second softening temperature range adhesive softening temperature while maintaining water vapor permeability in the thermally bonded area.
  • the outsole layer is constructed with a material selected from the group of materials rubber, PU (polyurethane), TPU (thermoplastic polyurethane), EVA (ethylene vinyl acetate), TR (technical rubber) and leather or combinations thereof is. It is considered that the outsole layer should have a good abrasion resistance.
  • Thermoplastic polyurethane is the generic term for a large number of different polyurethanes, which can have different properties.
  • a thermoplastic polyurethane can be selected, which in addition to high abrasion resistance has a high stability and skid resistance. If the comfort situation for the user of the shoe is to effect a shock absorption during the walking movements, correspondingly elastically yielding material, for example EVA (ethylene-vinyl-acetate) or PU (polyurethane) can be selected.
  • the outsole layer does not form the tread having an actual outsole but only a midsole and is located below the outsole layer an additional actual outsole, for example rubber or other sole material, which may be formed integrally or from several outsole parts. These actual outsole or outsole parts should have a high abrasion resistance.
  • the invention also provides footwear comprising a shaft assembly having a shaft bottom provided with a shaft bottom functional layer and thus waterproof and permeable to water vapor, and a sole unit connected to a sole end region of the shaft assembly according to at least one of said embodiments.
  • the shank of the footwear is provided with a shank functional layer that is watertightly bonded to the shank bottom functional layer so that the footwear as a whole is waterproof and permeable to water vapor.
  • One embodiment of the invention provides footwear having a sole unit provided with a comfort layer according to the invention and a shaft provided with a watertight and water vapor permeable shaft bottom functional layer in a sole side shaft end region, the sole unit being provided at the shaft end region of the shaft arrangement provided with the shaft bottom functional layer is fastened, that the shaft bottom functional layer is unconnected to the comfort position at least in the region of the comfort layer passage openings.
  • the latter provides a particularly high water vapor permeability because in the region of the comfort layer through openings no adhesive between the comfort layer and the shaft bottom functional layer is present, which would lead to a reduction of the water vapor permeability.
  • the footwear in addition to the shaft bottom functional layer within a water vapor permeable upper shaft material, has a shaft functional layer extending over a substantial portion of the upper upper material which engages with the shaft bottom functional layer is connected watertight or connected with this to a sock-like use (also called bootie).
  • a sock-like use also called bootie
  • Footwear with a closed top having a foot insertion opening and having at least one sole or sole unit.
  • the sole-side lower end of the upper upper material forms an area adjacent to the upper edge of the sole or sole unit or above a boundary plane between the upper and sole or sole unit.
  • a mounting sole is part of the shaft bottom. At least one sole-side lower shaft end region is fastened to the mounting sole.
  • a shoe has at least one outsole, but may also have several types of sole layers which are arranged one above the other and form a sole unit.
  • Outsole means the part of the sole area which touches the ground / ground or establishes the main contact with the ground / ground.
  • the outsole has at least one tread contacting the ground.
  • Bootie is a sock-like inner lining of a shaft arrangement.
  • a bootie forms a baggy lining of the shaft assembly which substantially completely covers the interior of the footwear.
  • Waterproof and / or water vapor permeable layer for example in the form of a membrane or a suitably treated or finished material, e.g. a textile with plasma treatment.
  • the functional layer may form at least one layer of a shaft bottom of the shaft arrangement in the form of a shaft bottom functional layer, but may additionally be provided as a shaft functional layer at least partially lining the shaft.
  • Both the shank functional layer and the shank bottom functional layer may be part of a multilayer, usually two-, three- or four-ply membrane laminate.
  • the shaft functional layer and the shaft bottom functional layer may each be part of a functional layer bootie.
  • Shank bottom functional layer and shaft functional layer may be formed of different or the same material.
  • Suitable materials for the waterproof, water vapor-permeable functional layer are in particular polyurethane, polypropylene and polyester, including polyether esters and their laminates, as described in the printed publications US-A-4,725,418 and US-A-4,493,870 are described.
  • the Functional layer with microporous, stretched polytetrafluoroethylene (ePTFE) constructed, as for example in the publications US-A-3,953,566 such as US-A-4,187,390 is described.
  • the functional layer is constructed with stretched polytetrafluoroethylene provided with hydrophilic impregnating agents and / or hydrophilic layers; see for example the publication US-A-4,194,041 ,
  • a microporous functional layer is understood as meaning a functional layer whose average pore size is between approximately 0.2 ⁇ m and approximately 0.3 ⁇ m.
  • Laminate is a composite consisting of several layers which are permanently bonded together, generally by mutual bonding.
  • a waterproof, water vapor permeable functional layer is provided with at least one textile layer.
  • the at least one textile layer also called the side, serves mainly to protect the functional layer during its processing.
  • This is called a 2-layer laminate.
  • a 3-layer laminate consists of a waterproof, water-vapor-permeable functional layer, which is embedded between two textile layers. The connection between the functional layer and the at least one textile layer takes place, for example, by means of a continuous water-vapor-permeable adhesive layer or by means of a discontinuous adhesive layer of non-water vapor-permeable adhesive.
  • adhesive may be applied in the form of a dot-like pattern between the functional layer and the one or both textile layers.
  • the punctiform or discontinuous application of the adhesive takes place because a full-surface layer of a self-water vapor-permeable adhesive would block the water vapor permeability of the functional layer.
  • a barrier layer serves as a barrier against the penetration of substances, in particular in the form of particles or foreign bodies, for example pebbles, to a material layer to be protected, in particular to a mechanically sensitive functional layer or functional layer membrane.
  • a waterproof is considered a functional layer / functional layer laminate / membrane, optionally including provided on the functional layer / functional layer laminate / membrane seams, if it ensures a water inlet pressure of at least 1x104 Pa.
  • the functional layer material ensures a water inlet pressure of over 1x105 Pa.
  • the water inlet pressure shall be measured by a test method in which distilled water is applied at 20 ⁇ 2 ° C to a sample of 100 cm2 of the functional layer with increasing pressure. The pressure increase of the water is 60 ⁇ 3 cm Ws per minute. The water inlet pressure then corresponds to the pressure at which water first appears on the other side of the sample. Details of the procedure are specified in the ISO standard 0811 from the year 1981.
  • Whether a shoe is waterproof for example, with a centrifuge assembly in the US-A-5,329,807 be tested type tested.
  • a material, in particular a functional layer / a functional layer laminate, is regarded as "water-vapor-permeable" if it has a water vapor transmission rate Ret of less than 150 m.times.Pa.times.W-1.
  • the water vapor permeability is tested according to the Hohenstein skin model. This test method is described in DIN EN 31092 (02/94) or ISO 11092 (1993).
  • the water vapor permeability values of the layers of a sole unit according to the invention namely the outsole layer, the barrier layer and the comfort layer, are tested with the aid of the so-called cup method according to DIN EN ISO 15496 (09/2004).
  • the barrier layer has a water vapor permeability of at least 4,000 g / m 2 .24 h. In practical embodiments a water vapor permeability of at least 7,000 g / m 2 x 24 h or even 10,000 g / m 2 x 24 h is selected.
  • the sole structure together with the shaft bottom functional layer or the shaft bottom functional layer laminate has a Moisture Vapor Transmission Rate (MVTR) in the range of 0.4 g / h to 3 g / h, which may be in the range of 0.8 g / h to 1.5 g / h, and in a practical embodiment is 1 g / h.
  • MVTR Moisture Vapor Transmission Rate
  • the degree of water vapor permeability of the sole unit can be compared with that in the document EP 0 396 716 B1 determined measurement method, which has been designed to measure the water vapor permeability of an entire shoe.
  • the measuring method according to EP 0 396 716 B1 also be used by with the in Fig. 1 of the EP 0 396 716 B1 the measurement setup shown is measured in two successive measurement scenarios, namely once the shoe with a water vapor permeable sole unit and another time the otherwise identical shoe with a water vapor impermeable sole unit. From the difference between the two measured values, the proportion of water vapor permeability can then be determined, which is based on the water vapor permeability of the water vapor permeable sole unit.
  • the water vapor permeability value for the water-vapor-permeable sole unit can be determined solely from FIG Determine difference AB.
  • the hardness according to Shore is the resistance to the penetration of a certain shape of a body under a defined spring force.
  • the Shore hardness is the difference between the numerical value 100 and the indentation depth of the indenter divided by the scale value 0.025 mm in mm under the effect of the test load.
  • a truncated cone with an opening angle of 35 ° is used as the indenter, and in Shore D a cone with an opening angle of 30 ° and a tip radius of 0.1 mm.
  • the indenters are made of polished, hardened steel.
  • materials with a Shore A hardness> 80 should be suitably tested to Shore D and materials with a Shore D hardness ⁇ 30 to Shore A.
  • FIG. 1 shows in perspective oblique view from below an embodiment of a shoe 11 according to the invention with a shaft 13 and a sole unit 15 according to the invention
  • FIG. 1 For example, the shoe 11 is shown in a mounting step before the sole unit 15 is attached to the shaft 13.
  • the shoe 11 has a researcher regarding outsole ply apertures 16, the particular topography shown with respect to the tread of the sole unit 15 is purely and not significant to the present invention.
  • sole unit 15 and thus a good sweat moisture dissipation from the shoe interior over the sole unit 15 are the largest possible outsole passage openings 16 desirable.
  • the lower end of the shaft 13 is closed with a shaft bottom 19 before the sole unit 15 is connected to the shaft 13.
  • the shaft bottom 19 is provided with a waterproof and water vapor permeable shaft bottom functional layer, for example in the form of a shaft bottom membrane 21 (to be seen in FIGS FIGS. 2 and 3 ).
  • Shaft 13 and shaft bottom 19 formed a shaft assembly 22.
  • the shaft bottom membrane is processed in the composite of at least two-ply laminate
  • FIGS. 2 and 3 shown cross-sectional views, which are, for example, cuts through a forefoot area of footwear, show different embodiments, which differ from each other not only in terms of the structure of the sole unit 15 but also with respect to the structure of the shaft assembly.
  • FIGS. 2 and 3 each represent a shoe, in which on the one hand the sole unit 15 is not yet connected to the shaft assembly 22 and in which on the other hand, the shoe 11 is shown without footbed.
  • the embodiment shown is designed for a molded onto the shaft assembly 22 sole, while the in FIG. 3 shown embodiment is designed for a glued to the shaft assembly 22 sole.
  • this is not relevant to the present invention and could correspond to the embodiments FIGS. 2 and 3 be provided the other way round, with appropriate adjustment of the sealing measures.
  • the shaft assemblies 22 of the two in the FIGS. 2 and 3 The embodiments shown correspondingly each have a shaft 13 with a steam-permeable upper upper material 23, a shaft functional layer arranged on its inner side, for example in the form of a shaft diaphragm 25, and on the inside of a shaft lining 27 on.
  • the shaft bottom 19 has a three-layered shaft bottom membrane laminate 33, which has as a center layer the shaft bottom membrane 21, on one surface of which a supporting textile layer 35 and on the other surface thereof a support mesh 37. It is also possible to use a shaft bottom membrane laminate with a different number of layers, for example a two-layer laminate.
  • the entire shaft bottom 19 ( FIG. 2 ) or an insole 29 of the shaft bottom 19 by means of a seam 31 (eg, stitching seam or zig-zag seam) connected to a bottom side lower end region of the shaft membrane 25 and shaft lining 27.
  • a seam 31 eg, stitching seam or zig-zag seam
  • both embodiments shown differ in terms of the structure of the respective shaft bottom 19 and in terms of the structure of the respective sole unit 15.
  • these two embodiments differ in terms of the connection between the shaft assembly 22 and sole unit 15th
  • the function of an insole 29, because of its function of mounting the lower shaft end in the desired shape, often also referred to as a mounting sole, is formed by the three-layered shaft bottom membrane laminate 33.
  • the sole-side lower end of the upper upper material 23 stops a certain distance in front of the seam 31, forming a supernatant of the sole-side lower end of the upper membrane 25 opposite the lower side of the upper material 23. This distance between upper 23 and seam 31 is bridged by means of a permeable for liquid plastic mesh belt 39.
  • the embodiment shown has a sole unit 15 which is constructed with an outsole layer 41 whose lower surface is formed in the figure as a running or tread surface 42 and on its side remote from the tread surface 42 has a recess 43 which leads to a reduction in thickness Outsole layer 41 in the region of this recess 43 leads.
  • the outsole ply 41 is in the region of this recess 43 with outsole ply openings extending through the thickness of the outsole ply 41 therealong 45 provided to cause a water vapor permeability of the outsole layer 41.
  • These outsole layer passage openings 45 are made as large as possible in order to achieve a correspondingly high water vapor permeability of the outsole layer 41 and thus of the sole unit 15.
  • a barrier layer 47 as a mechanical protection for the shaft bottom membrane 21 against damage by foreign bodies, such as pebbles, which pass into the outsole position passage openings 45.
  • This barrier layer 47 is constructed in one embodiment with the already mentioned thermally bonded fiber material, so that it can be additionally formed as a mechanical protection for the shaft bottom membrane 21 as a stabilizing material for the sole unit 15.
  • a comfort layer 49 which at the in FIG. 2 illustrated embodiment is provided with extending through the thickness of the comfort layer 49 through comfort passage openings 51, for example, because the comfort layer 49 is constructed with a water-vapor-impermeable material.
  • a foot cushion improved walking comfort or both is to be achieved
  • a material is used for the comfort layer 49, which is lighter than the material of the outsole layer, softer than the material of the outsole layer or both are.
  • EVA is suitable as a material for comfort.
  • a weight reduction compared to the run sole layer material is to be achieved, a foamed plastic with correspondingly low specific weight is suitable.
  • foamed EVA is suitable, for example. But there are many other material variants that can be used
  • the material of the outsole layer 41 is liquid sole material by means of an injection mold (not shown) which can be attached to the underside of the shaft arrangement 22 and into which the barrier layer 47 and the comfort layer 49 have been inserted prior to the injection molding process an outsole layer or another sole layer, for example a midsole, molded on the shaft bottom 21 in such a way that, on the one hand, the in FIG.
  • the molded outsole pad material laterally extends so far that it to the bottom side of the upper upper 23 and through the net 39 through the mesh behind the net 39 lying from the upper shaft 23rd uncovered lower end portion of the shaft membrane 25 can penetrate to make at this point a watertight connection on the one hand between the outsole layer 41 and shaft membrane 25 and on the other hand over the seam 31 over reaching a watertight connection between the shaft membrane 25 and the shaft bottom membrane 21.
  • the shaft bottom membrane laminate 33 is arranged such that its support network 37 on the after bottom side facing the shaft bottom membrane 21 is located.
  • the outsole layer 41 and the comfort layer 49 per through openings 45 and 51 which not only have the same size but also aligned with each other, so overlap a maximum.
  • a particularly high water vapor permeability of the sole unit 15 is achieved.
  • the shaft bottom membrane laminate 33 is directed so that the support network 37 downwards, ie to the sole unit 15, which is penetratable by liquid injection molding material on the sole. Therefore, this liquid sole material penetrates as shown in FIG FIG. 2 flowing to the net band 39, the seam 31 and a peripheral portion of the shaft bottom membrane laminate 33, both through the net 39 to the corresponding portion of the shaft membrane and through the support net 37 to the corresponding portion of the shaft bottom membrane laminate 33 to seal these two portions , including the seam 31 in the sealing process.
  • the shaft bottom 19 differs from the in FIG. 3 shown embodiment of the shaft bottom 19 of in FIG. 2 shown embodiment in that the insole function is not taken over by a shaft bottom membrane laminate but by an addition to the shaft bottom membrane laminate 33 provided insole 29 or mounting sole, which is connected to the shaft membrane 25 and the lining 27 via a seam 31, which is again a Strobelnaht or a zigzag seam can act.
  • a sole side lower end portion of the shaft diaphragm 25 and a peripheral portion of the shaft bottom diaphragm 21 are waterproofly connected to each other by means of a sealant adhesive 53. Since it is also true for this sealing adhesive 53 that it can penetrate only the supporting net 37 but not the supporting textile layer 35 up to the shaft bottom membrane 21 in order to seal it, in this embodiment the shaft bottom membrane laminate 33 is reversely oriented with respect to the embodiment shown in FIG. that at the in FIG. 3 In the embodiment shown, the supporting net 37 on the upper side and the supporting textile layer 35 are located on the underside of the shaft bottom membrane 21. In this case, the shaft bottom membrane laminate 33 is located on the underside of the insole 29, ie on the side facing the sole unit 15 side of the insole 29.
  • the sealing adhesive 53 also serves to attach the Schaftêtmembranlaminats 33 to the shaft assembly 22 so that no additional adhesive is required.
  • FIG. 3 For example, the bottom upper end portion of the sole side is pinched on the underside of the peripheral edge of the shaft bottom membrane laminate 33 by means of a Zwickkleber 55.
  • the outsole layer 41 of the sole unit 15 is bonded by means of a sole adhesive 57 applied to a peripheral area of the upper surface of the outsole layer 41 to the sole-side lower end portion of the upper upper 23 and at least partially to a peripheral portion of the upper bottom 19.
  • sole unit 15 shown differs from that in FIG. 2 shown sole unit 15 on the one hand by the shape of located between the outsole layer passage openings 45 outsole layer parts, which in the case of FIG. 2 the shape of studs and in FIG. 3 have the shape of narrower webs.
  • this is of secondary importance. If, in both cases, total surface areas of the same size come together from all outsole-layer passage openings 45, this leads to substantially the same water vapor permeability.
  • FIG. 2 embodiment shown has a comfort layer 49 with comfort position through holes 51, for example, because this comfort layer 49 consists of a material that is not permeable to water vapor, is in the in FIG. 3 a comfort layer 49 shown schematically, which consists of a per se water vapor permeable material, which is, for example, a textile layer, for example, from a multi-layered textile with staggered in relation to each other stitches.
  • the insole function performing shaft bottom membrane laminate 33 (FIG. FIG. 2 ) or the insole 29 is connected by means of the Strobelnaht 31 with the lower shaft end, which is why one speaks in such a case often of a Strobelbrandsohle.
  • FIGS. 4 and 5 each show only a sole unit 15 which can be connected to a shaft assembly, which according to need to the shaft assembly according to FIG. 2 or the shaft assembly according to FIG. 3 can act or a similar shaft arrangement.
  • Characteristic of the sole units 15 of the FIGS. 4 and 5 is that, unlike the one in FIG. 2 shown embodiment, the comfort layer passage openings 51 do not extend vertically to the tread surface 42 outsole layer 41 but at an oblique angle to the tread 42. While at FIG. 4 extend all comfort position through holes 51 in the same oblique direction, assign FIG. 5 the comfort layer passage openings 51 located there on the left and the convenience layer passage openings 51 located there on the right have differently directed oblique angles.
  • the oblique angles, the thickness of the comfort layer 51, and the diameters of the comfort layer through holes 51 are to be matched to each other to provide inclined wall portions of the comfort layer through holes 51 which oppose the penetration of foreign matter, that is, in the direction perpendicular to the tread surface 42 and the barrier layer 45 no clear width of the comfort layer through holes 51 are in which a foreign body, which should be able to penetrate the barrier layer 45, the comfort layer 51 can pass without further obstacle.
  • the comfort layer 41 may be formed as an air-permeable layer in the form of an air-permeable spacer structure. Exemplary embodiments of this show the FIGS. 6 to 10 ,
  • a comfort layer 49 which is constructed with a suitable as an air-permeable layer 40 spacers 60, bulge from a lower sheet 64 in approximately hemispherical projections or bulges 65 upwards, the upper vertices define an upper support surface.
  • This spacer structure 60 in one embodiment consists of a first sheet knitted fabric or a solid material which, after being brought into the shape shown, is so stiff or stiffened, for example by a deep drawing operation, that it retains this shape even under load which is exposed to it while walking with a shoe having a sole unit 15 equipped with this spacer.
  • further measures can be used, namely deformation and stiffening by a thermoforming process or impregnation with a synthetic resin curing to the desired shape and rigidity.
  • FIG. 7 shows an embodiment of a comfort layer 51 which is constructed with a suitable as an air-permeable layer 40 spacers 60 whose upper and lower support surface by two mutually parallel air-permeable sheets 62 and 64 are formed, for example, from the group of polyolefins, polyamides or polyesters are selected, wherein the sheets 62 and 64 are connected by supporting fibers 66 permeable to air and at the same time spaced. At least a portion of the fibers 66 are disposed as spacers at least approximately perpendicularly between the sheets 62 and 64.
  • the fibers 66 are made of a flexible, deformable material such as polyester or polypropylene.
  • the air may flow through the sheets 62 and 64 and between the fibers 66.
  • the fabrics 62 and 64 are open-pored woven, knitted fabrics or knitted textile materials.
  • Such a spacer fabric 60 may be a spacer fabric available from Tylex or Müller Textil.
  • FIG. 8 shown spacer structure 60 has a similar structure as that in FIG. 6 However, shown spacers, but consists of a knitted fabric or Gewirkkefilêtn which have been brought into this form and solidified, for example by a thermal process or impregnation with synthetic resin in this form.
  • FIG. 9 1 shows an embodiment of a zigzag or sawtooth profile spacer 60 to which a first flat material has been formed, such that the upper and lower peaks 60a and 60b, respectively, define the upper and lower bearing surfaces of this spacer 60, respectively.
  • the spacer 60 of this shape can be formed by the already mentioned methods and solidified to the desired stiffness.
  • FIG. 10 shows a further embodiment of a spacer structure 60, which is suitable for the comfort layer 51 according to the invention useful air-permeable layer 40.
  • spacers are formed by the single bottom sheet 68 not by protrusions or protrusions but by tufts 70 which are upstanding from the sheet 68 and whose top free ends together define the top support surface.
  • the tufts 70 can be applied by flocking the lower fabric 68.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Laminated Bodies (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
EP10718095.2A 2009-04-01 2010-03-31 Sohleneinheit für schuhwerk und damit versehenes schuhwerk Not-in-force EP2413728B1 (de)

Applications Claiming Priority (2)

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DE102009015890A DE102009015890A1 (de) 2009-04-01 2009-04-01 Sohleneinheit für Schuhwerk und damit versehenes Schuhwerk
PCT/EP2010/054359 WO2010112568A1 (de) 2009-04-01 2010-03-31 Sohleneinheit für schuhwerk und damit versehenes schuhwerk

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EP2413728A1 EP2413728A1 (de) 2012-02-08
EP2413728B1 true EP2413728B1 (de) 2016-07-13

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KR (1) KR101457757B1 (zh)
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AU (1) AU2010230187B2 (zh)
CA (1) CA2755855C (zh)
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RU2011144094A (ru) 2013-05-10
US20130036631A1 (en) 2013-02-14
WO2010112568A1 (de) 2010-10-07
KR101457757B1 (ko) 2014-11-03
CN102378583B (zh) 2017-05-10
JP5540069B2 (ja) 2014-07-02
AU2010230187A1 (en) 2011-10-20
CN102378583A (zh) 2012-03-14
RU2499536C2 (ru) 2013-11-27
AU2010230187B2 (en) 2013-01-24
UA105522C2 (uk) 2014-05-26
JP2012522551A (ja) 2012-09-27
EP2413728A1 (de) 2012-02-08
CA2755855A1 (en) 2010-10-07
KR20120018140A (ko) 2012-02-29
CA2755855C (en) 2015-01-06

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