Footwear with a waterproof and water vapor permeable shaft has been available for a long time, so that such a footwear, despite being waterproof, can now give off sweat moisture in the shaft area. 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. 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.
In order to get in view of the strong sweating tendency of the human foot to a higher water vapor permeability, it has gone over to provide the outsole with large compared to micro perforations through holes. From the EP 0 275 644 A2
, which shows an example of this, the teaching is known to make the through holes as large as possible in order to achieve a particularly high water vapor permeability.
The larger the through-holes of the outsole, the greater the risk that a waterproof membrane located above the through-holes of the outsole will be damaged by foreign objects, such as pebbles, which penetrate the through-holes and thus deprived of their watertightness. Therefore, the sees EP 0 275 644 A2
that between the outsole with its through holes and the membrane above it a protective layer, for example, of a mesh or felt material is arranged, which prevents the through holes of the outsole penetrating foreign body from penetrating to the membrane.
Further examples with large through holes of the outsole, in which the passage openings are closed by means of a membrane against the penetration of water to Schuhinnenraum and below the membrane is a protective layer which is to prevent the penetration of foreign bodies to the membrane, are known from WO 2004/028284 A1
. WO 2006/010578 A1
. WO 2007/147421 A1
and WO 2008/003375 A1
, In all these cases, on one side of the membrane, usually a film, a textile backing is laminated in the form of a fine knit fabric. An arranged between the membrane and through holes of the outsole net-like protective layer provides some protection against the penetration of foreign bodies to the membrane. To improve the protection for the membrane, a further protective layer is arranged between the membrane and the net-like protective layer, which is, for example, a felt layer. Thus, a double protection for the membrane is created, in which two superimposed layers are involved, each of which has a technical protection function.
Material selection for these layers and their thickness and
Puncture resistance values are tailored to the needs of
to adapt to each practical embodiment. This
applies to the known solutions as well as for
the solutions presented by the present invention.
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.
the textile material is particularly suitable a fiber layer, which
has at least two fiber components, with respect to
their melting temperatures differ, with at least a portion
a first fiber component, a first melting temperature and a
having underlying first softening temperature range
and at least a portion of a second fiber component a second
Melting temperature and an underlying second softening temperature range
and the first melting temperature and the first softening temperature range
higher than the second melting temperature and the second softening temperature range
and wherein the fiber layer due to thermal activation of the
second fiber component having a second softening temperature range
lying adhesive softening temperature in a thermal manner mechanically
is solidified while maintaining water vapor permeability
in the thermally consolidated area. It can either
the passage opening or optionally a plurality of passage openings
the outsole closed with individual pieces of textile material
his or all through holes of the outsole
are closed with a single piece of textile material.
In this known footwear, 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 Ö 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.
The textile material is particularly suitable polymers, for example
are selected from PES (polyester), polypropylene, PA (polyamide) and
Mixtures of polymers.
In an embodiment according to the already mentioned WO 2007/101624 A1
consists of the textile material of a fiber composite in the form of a thermally mechanically strengthened and additionally surface treatment by thermal surface treatment surface-bonded nonwoven fabric with two fiber components, which are each constructed with polyester fibers. In this case, the first fiber component with the higher melting temperature forms a carrier component of the fiber composite and forms the second fiber component with the lower melting temperature, a solidification component. In order to ensure a temperature stability of the entire fiber composite of at least 180 ° C, and in view of the fact that footwear can be exposed to relatively high temperatures during its production, for example, when molding an outsole, in the considered embodiment for both fiber components polyester fibers with a more than 180 ° C melting temperature used. There are several variations of polyester polymers that have different melting temperatures and corresponding underlying softening temperatures. In the contemplated embodiment of the felt-like material, 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
for the two purposes indicated above, namely
Stabilization and membrane protection, especially suitable on thermal
Way mechanically strengthened textile material has the disadvantage that
its serving as solidification component fiber component with the
lower melting temperature unsatisfactory or only
can be stained insufficient and therefore in the fiber composite
remains white, what the textile material is not a whole
gives a satisfactory appearance. This is disadvantageously noticeable
because the textile material through the large passage openings
the outsole is visible through.
growing need, the entire footwear and so too
to make the bottom of his sole fashionable, also by the bottom
the sole construction given a fashionable appeal
is, in particular by appealing and varied color design, can
therefore not be met with this textile material.
is also known, large openings in a sole
to close with other materials, for example
with felt-like material, at least partially made of aramid fibers
how KEVLAR exists. However, fibers from aramids are not or
only very badly dyeable, so it is also in this
Case comes to the problems already described above.
The present invention is a sole unit for
Footwear created, which is a satisfactory and largely
any fashionable design of the bottom of the sole construction in terms of
Color and patterning as well as material selection enables
without the water vapor permeability of the sole unit or
their barrier or protective function seriously affect.
This is done with a sole unit according to the invention
according to protection claim 1, with which inventive
Footwear made according to protection claim 25
can be. Embodiments of the invention are in the
dependent protection claims specified.
A sole unit according to the invention for footwear is permeable to water vapor and permeable to water and has at least one sole ply with at least one large opening extending through its thickness. It also has at least two superimposed sheets, which close the at least one opening and of which a first sheet has a textile moisture vapor permeable barrier layer and a second sheet has a water vapor permeable decorative layer below the first Flächengebil which is arranged at least in the region of the at least one opening and is visible from the underside of the sole layer in the at least one opening.
An embodiment of the invention is the barrier layer
constructed with a fiber layer, which at least two fiber components
which differ in their melting temperatures,
wherein at least a portion of a first fiber component is a first
Melting temperature and an underlying first softening temperature range
and at least a portion of a second fiber component a
second melting temperature and an underlying second softening temperature range
and the first melting temperature and the first softening temperature range
higher than the second melting temperature and the second softening temperature range
are. The fiber layer is due to thermal activation of the second
Fiber component having a second softening temperature range
lying adhesive softening temperature in a thermal manner mechanically
solidified while maintaining water vapor permeability
in the mechanically mechanically solidified area.
There can be various reasons for footwear
with a sole unit, in particular of the previously mentioned type,
that from the bottom of the outsole through its large-area
Breakthroughs, also called openings here, visible through
Material of the sole unit at least partially by means of an inventive
Cover decorative layer.
use of such a decorative layer according to the invention
in a sole unit with a fiber layer mentioned above
is based on the knowledge that the coloring of as
Hardening component serving fiber component with the lower
Melting temperature requires that this fiber component on a
Temperature is warmed, which is above the softening temperature
This fibrous component is located so that this fiber component is not
can be colored. It's different with the other fiber component
with the higher melting temperature. Their melting temperature
is higher than the temperature required for dyeing. One
Dyeing is therefore only with regard to the fiber component with
the higher melting temperature possible, but not
with regard to the fiber component with the lower melting temperature,
so that white flecks within the fiber composite
of the textile material can not be avoided, resulting in an aesthetic
unattractive appearance leads.
Problem is with a sole structure with such a fiber layer
inventively encountered by the fact that not
Satisfactory coloring of the textile material accepted and
This textile material is preceded by a decorative layer, which
made of material with appealing color or coloring,
for example, this material is latticed or net-like
or from a perforated sheet or textile material
with high water vapor permeability, the water vapor permeability
the sole unit thus hardly affected by the decorative layer
becomes. With the solution according to the invention
can therefore, with substantially hardly impaired water vapor permeability,
hide the less appealing appearance of the textile fiber layer
behind the decorative layer, which is the one above related to the textile material
explained limitation in terms of color or coloring
not subject. The decor layer can therefore be independent and
dyed according to almost any fashionable ideas
and designed what the textile material of the
above-mentioned fiber layer is not possible. you
can selectively use materials for the decorative layer, which
dye well and / or pattern or
by nature have appealing colors and / or patterns.
So the solution according to the invention you have
a technical requirement, namely a protective function,
and an aesthetic requirement, namely a
visually appealing appearance, thus easier to realize
bar and also commercially attractive made that these two requirements
no longer trying to achieve with a single location but
divided into two different layers, each one for itself
targeted with regard to their specific requirement and function
can be trained. On the one hand you need in the
Able to no longer compromise with the technical function
at least a halfway appealing aesthetic
To make an impression. On the other hand, you can change the situation with the aesthetic
Function as good as finally according to this
Design function because it is the technical function of others
Location does not need to provide.
gives further commercial advantages of the invention
Decoupling of technical function, eg stabilization function,
and aesthetic function. The location with the technical function,
for example, the stabilization layer, can be produced in standard color
so that they are suitable for all shoes with one
technically effective position is to be used,
which is very cost effective. The location with the aesthetic
Function, namely the decorative layer, can be from a standard range
which is also very cost effective.
A decorative layer according to the invention ver may also be advantageous in the event that for both components of the thermally bonded fiber layer materials are or should be available that are not subject to the above-mentioned limitation in color or color. For example, the thermally mechanically consolidated textile material of the fiber layer is more expensive than materials that are suitable for the decorative layer. Especially in the highly fashionable market segment of casual shoes, there is a strong trend to provide the same or different shoe models with different colors and patterns, for example, to appeal to different age groups with different fashion designs. If this need were met with differently dyed or patterned fiber layers, the respective shoe manufacturer would have to get and store correspondingly dyed and / or patterned different fiber layers. This would be disadvantageous not only from a logistical point of view both for the manufacturer of the fiber layers and for the shoe manufacturer but also in terms of higher purchasing costs for the shoe manufacturer due to the relatively small number of pieces per color and / or pattern type. The fact that, when using the decorative layer, the appearance of the underside of the sole unit is no longer determined by the fiber layer material but by the appearance of the decorative layer, the shoe manufacturer can relate uniform fiber layer material and in terms of visual and fashionable appearance of the underside of the sole unit on the decorative layer focus. Material for the shoe manufacturer or, if he does not make the soles for his shoes, the sole manufacturer in targeted quantity and color as well as structure and material type or make even in terms of color and color pattern, where he from a larger number of suppliers materials for He can refer to him desired decorative layers, so that he can turn both different in terms of pricing and in terms of the availability of different materials to different materials manufacturers. Thus, irrespective of whether or not the material of the fiber layer can be dyed according to the desired ideas, it may be worth considering the optical design of the underside of the sole unit with regard to color and pattern with an additional decorative layer, in particular for the above-mentioned reasons of logistics, Diversity and under price aspects.
the material for the decorative layer after its production
be colored, for example by spraying,
Screen printing or the like, just needs to pay attention
to become that coloring or patterning in such
Way, that the stitches or other openings or
Pores of the material of the decorative layer remain so open that the
desired water vapor permeability obtained
remains. Such a color design with such means
and method would be in a textile layer, in particular
Felt layer, which in known cases through the through holes of the
Outsole is visible, not possible. On the one hand let
on surfaces of textile materials such as felt
Color samples, in particular finely structured type, not with sufficient
Resolution. On the other hand can be
difficult to avoid when applying paint by spraying
or screen printing the surfaces of such materials in significant
Measurements are added so that the desired
Water vapor permeability can no longer be realized.
In addition, such techniques are relatively expensive. A coining of
textile materials leads to a non-uniform surface height,
which in turn is disadvantageous when molding sole material, since
then the flow of sole material in the textile layer unpredictable
Decorative layer according to the invention is particularly advantageous
in an embodiment wherein the fiber layer is two
Having fiber components and for the second fiber component
a material is used in which the softening temperature range
the second fiber component below for dyeing
the temperature required for the second fiber component. Because
In this case, the aesthetically little
attractive appearance of the fiber layer with its white spots
only with a decoration layer according to the invention,
so the bottom of the sole unit still visually appealing
can be designed.
in the case of shoes with a sole unit,
provided with a decorative layer according to the invention
can address to younger customers, one can with the decor layer
be achieved attractive "metal look". Therefore exists
in one embodiment of the invention, the decorative layer
Material that brings the appearance of metal with it.
In a dedicated first embodiment
The invention consists of the material of the decorative layer exclusively
made of metal, for example a metal grid or a metal net.
In a designated second embodiment of the
Invention consists of the material of the decorative layer of a metallized
Plastic grid or is constructed with a metallized fiber,
which are brought into a yarn structure or in the form of a yarn net
Material examples of a purely metallic decorative layer are iron, aluminum and steel. Material examples of a decorative layer of metallized plastic are woven, knitted fabric and knitted fabric with a coating of tin, silver, copper, nickel, or other alloys, eg. B. POLYMET ® from Platingtech Coating GmbH & Co KG, Niklas village, Austria. The material is so tear-resistant, wear and corrosion resistant. Material examples of a decorative layer of non-metallized plastic are polyester, polypropylene, polyurethane, polymers, polyamide, z. B. Polyamide mesh silver from Panatex, 25030 Zocco d'Erbusco, Italy
Material for the decorative layer are also suitable by
Processing such as perforating water vapor permeable
designed materials or perforated sheet, for example
made of polyamide, polyurethane, etc., or inherently water vapor permeable
Flat material, for example made of plastic, textile, leather, metal, glass fibers
or a combination thereof.
can the above mentioned material examples for the decorative layer
also combine with each other or with other materials to the
each desired color and pattern effect to achieve.
an embodiment of the invention, the decorative layer
a substrate and a surface covering the substrate
Coating on, the coating being built up with a material
which is colored or at least has a dye.
In this way, different material requirements for
combine a decorative layer, for example, a substrate with desired
mechanical properties and desired water vapor permeability
in combination with a coating which exclusively
colored according to aesthetic criteria and
can be patterned because they are desired or required
mechanical properties and the desired water vapor permeability
the decorative layer does not have to contribute.
In embodiments of the invention, the decorative layer can have a water vapor permeability in the range of 10,000 g / m 2 .24 h to 50,000 g / m 2 .24 h, in particular in the range of 20,000 g / m 2 .24 h to 30,000 g / m 2 .24 h, exhibit. In one embodiment of the invention, the decorative layer has a water vapor permeability of 26,000 g / m 2 · 24 h. In embodiments of the invention, the stabilization layer, here also referred to as barrier layer or fiber layer, (textile material) has a water vapor permeability in the range from 3,000 g / m 2 .24 h to 20,000 g / m 2 .24 h, in particular in the region of 8,000 g / m 2 x 24 h to 15,000 g / m 2 x 24 h. In one embodiment of the invention, the stabilization layer has a water vapor permeability of 12,588 g / m 2 · 24 h. With such values for the water vapor permeability of the decorative layer and the stabilizing layer, a water vapor permeability desired for the entire sole unit can be achieved. In embodiments of the invention, the entire sole unit can have a water vapor permeability in the range of 1,000 g / m 2 .24 h to 20,000 g / m 2 .24 h, in particular in the range of 6,000 g / m 2 .24 h to 12,000 g / m 2 . 24 h. In one embodiment of the invention, the water vapor permeability of the entire sole unit is 9.337 g / m 2 .24 h.
an embodiment of the invention is the sole layer
the sole unit, which is assigned to the decorative layer, from a
sprayable material, in particular plastic material. this makes possible
a further embodiment of the invention, in which
the sole layer to the fiber layer and the decorative layer molded in such a way
is that the fiber layer and the decorative layer over sole layer material with
the sole layer are connected. In one embodiment
The fiber layer and the decorative layer can be used by means of sole layer material
be connected to each other. In one embodiment
penetrated the fiber layer and the decorative layer of sole layer material
be. These embodiments enable a
particularly advantageous, because inexpensive and technically less expensive
Connection of sole layer, fiber layer and decorative layer.
An embodiment of the invention forms the sole layer
an outsole. In another embodiment of the invention
The sole layer forms a midsole of the sole unit.
An embodiment of the invention form the fiber layer
and the decorative layer an insert. This leads to the possibility
for sole structures of the same kind, for example, a
same outsole or midsole and / or other same
Components have, by their combination with different
designed inserts, in particular with regard to their
Decor layer are different from each other, a relatively large
Variety of sole units according to the invention
in a rational and thus cost-effective way and under
to make available logistically advantageous aspects.
The invention provides footwear with a sole unit according to the invention with
a decorative layer is provided and has a shaft which in a
sole side shank end area with a watertight and water vapor permeable
Shaft bottom functional layer is provided, which with the shaft bottom functional layer
provided sole unit at the Schaftendbereich so attached
is that the shaft bottom functional layer at least in the area
the at least one opening unconnected to the fiber layer
is. The latter provides a particularly high water vapor permeability,
because in the area of the opening (s) no adhesive between the fiber layer
and shaft bottom functional layer is present, resulting in a reduction
the water vapor permeability would result.
An embodiment of the invention comprises the footwear
next to the shaft bottom functional layer one over a
substantial area of the upper surface extending shank functional layer
which is watertightly connected to the shaft bottom functional layer
is or with this a sock-like use (also called bootie)
Footwear is on the one hand (except the Fußeinschlüpföffnung)
completely waterproof, yet permeable to water vapor and leaves
on the other hand, in terms of the appearance of the bottom sole
footwear, which is particularly important for fashionable shoes
for aesthetic reasons or because of the shoe manufacturer a
special, pointing to him optical design of the bottom sole
wishes to design largely as you like.
Definitions and test methods
with a closed top (shaft assembly) which a
Has Fußeinschlüpföffnung and at least
a sole or a sole unit.
- a material which is the outside of the shaft and
thus forms the shaft assembly and, for example, made of leather, a
Textile, plastic or other known materials and combinations
of which it is composed or constructed and generally made of water vapor permeable
Material exists. The sole-side lower end of the upper upper material
forms an area adjacent to the top edge of the sole or
Sole unit or above a boundary plane between the shaft and
Sole or sole unit.
Mounting sole (insole):
- a mounting sole is part of the shaft bottom. On the mounting sole
a sole-side lower shaft end region is fastened.
Shoe has at least one outsole, but can also be several types
of sole layers, which are arranged one above the other
and form a sole unit.
Outsole is the part of the sole area to be understood that
touches the ground / subsoil or the main one
Contact with the ground / ground. The outsole has at least
a tread touching the ground.
Case that the outsole is not directly on the shaft assembly
can be attached, a midsole between outsole and
Shaft assembly are inserted. The midsole can, for example
upholstery, cushioning or as filling material
Bootie becomes a sock-like inner lining of a shaft assembly
designated. A bootie forms a baggy lining of the shaft assembly,
which essentially completes the interior of the footwear
and / or water vapor permeable layer, for example
in the form of a membrane or a suitably treated or finished
Materials, eg. B. a textile with plasma treatment. The functional layer
can in the form of a shaft bottom functional layer at least one layer of a
Shank bottom of the shaft assembly form, but can also in addition
provided as a shank functional layer at least partially lining the shaft
be. Both the shaft functional layer and the shaft bottom functional layer
can be part of a multilayer, usually two-, three- or four-ply
Membrane laminate be. The shaft functional layer and the shaft bottom functional layer
can ever be part of a functional layer bootie. Be in place
a functional layer bootie a shank functional layer and a
used separate Schaftbodenfunktionsschicht, these are used for example in
sole side lower portion of the shaft assembly against each other
waterproof sealed. Shank bottom functional layer and shank functional layer
can be made 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
are described. In one embodiment, the functional layer is constructed with microporous, stretched polytetrafluoroethylene (ePTFE) as described, for example, in references US-A-3,953,566
such as US-A-4,187,390
is described. In one embodiment, the functional layer is with stretched polytetrafluoroethylene which is impregnated with hydrophilic impregnating agents and / or hydrophilic len layers is constructed; see for example the publication US-A-4,194,041
, A microporous functional layer is understood to be a functional layer whose average pore size is between about 0.2 μm and about 0.3 μm.
is a composite consisting of several layers that are permanent with each other
are connected, generally by mutual bonding. at
A functional layer laminate is a waterproof, water vapor permeable
Functional layer provided with at least one textile layer. The least
a tex tile location, also called Abseite, serves mainly
the protection of 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 in 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
Made of non-water vapor permeable adhesive. In one embodiment
can be between the functional layer and one or both
Textile layers Adhesive in the form of a dot-shaped pattern
be upset. The punctiform or discontinuous
Applying the adhesive takes place because of a full-surface
Layer of a self not permeable to water vapor
Adhesive the water vapor permeability of the functional layer
Barrier layer serves as a barrier against the penetration of substances,
especially 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.
Decor layer is intended for aesthetic reasons
Material layer, whose function it belongs, the appearance
one without the decorative layer visible, but covered by the decorative layer and
especially because of their technical function provided material layer
to laminate, especially if the material layer is an unsatisfactory
or undesirable aesthetic appearance
Connection with the decorative layer according to the invention
here means porous that the material of the decorative layer of
House out or as a result of processing permeable to water and
is water vapor permeable
Puncture resistance of a textile fabric can
to be measured by an EMPA (Federal Department of
Materials Testing and Research Institute) used measuring method
using a testing device of the Instron tensile testing machine
(Model 4465). By means of a punching iron becomes a round textile piece
punched 13 cm in diameter and fixed on a support plate,
in which there are 17 holes. A stamp on which 17 thorn-like
Needles (sewing needle type 110/18) are fastened with a
Speed of 1000 mm / min so far shut down that the
Needles through the textile piece into the holes
immerse the support plate. The power to pierce
of the textile piece is by means of a load cell (a force transducer)
measured. The result is a sample number of three samples
Puncture resistance of a material layer such as the barrier layer or
Stabilization layer is tested by means of the test method "TM
37 SATRA "of the SATRA Technology Center, Wyndham Way, Kettering,
Northamptonshire, NN16 8SD, United Kingdom.
- European standard EN 344-1 , in particular section 4.3.3 (penetration resistance)
The force required to harden is determined
Steel nail with a sharp point through a boot or shoe bottom
Test device parameters:
Tensile testing device from Instron Deutschland GmbH, Werner-von-Siemens-Strasse 2, 64319 Pfungstadt;
the anvil is a sharp-pointed steel nail with a diameter of 4.5 mm and a point angle of 30 °;
the propulsion speed is 10 ± 3 mm / min;
Test sites: The TM 37 SATRA test provides four puncture points for testing the puncture resistance of a sole, distributed over the soles and spaced at least 20 mm apart (Foot ball area them, foot ball area outside, midfoot area, heel). Since it is in connection with the present invention to the puncture resistance of the barrier layer, which are at risk for penetrating with pointed particles directly only in the area provided for a high water vapor permeability large openings of the sole layer provided with it, is for those embodiments of the invention, at which are provided in the heel area no such openings, omitted when using the test TM 37 SATRA the passage in the heel area.
Definition of puncture resistance:
Context with the present invention means puncture resistant,
that the tested material, in particular the shoe stabilization material according to the invention
or barrier material, at the penetration test TM 37 SATRA one
Force of at least 40 Newton withstands.
The thickness of the shoe stabilization material according to the invention is after DIN ISO 5084 (10/1996) tested.
As 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 1 × 104 Pa. The functional layer material preferably ensures a water inlet pressure of more than 1 × 10 5 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 cm 2 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 in the ISO standard 0811 from 1981 specified.
Whether a shoe is waterproof, z. B. with a centrifuge assembly in the US-A-5,329,807
be tested type tested.
Water vapor permeable:
As a "water vapor permeable", a functional layer / a functional layer laminate is considered, if it has a water vapor transmission rate Ret of less than 150 m2 × Pa × W-1. The water vapor permeability is tested according to the Hohenstein skin model. This test method is used in the DIN EN 31092 (02/94) respectively. ISO 11092 (1993) described.
The water vapor permeability values of the barrier layer / fiber layer / stabilization layer / decorative layer according to the invention are detected by means of the so-called cup method DIN EN ISO 15496 (09/2004) tested.
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. For measuring the water vapor permeability of only the sole unit of a shoe, the measuring method according to EP 0 396 716 B1
also be used by with the in 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.
For each measurement scenario, using the measurement method according to EP 0 396 716 B1
proceeded, namely with the following sequence of steps:
- 1. Condition the shoe by leaving it in a conditioned room (23 ° C, 50% relative humidity) for at least 12 hours.
- 2. Removal of the insole (footbed)
- 3. lining of the shoe with adapted to the shoe interior waterproof, water vapor permeable lining material, which in the Fußeinschlüpföffnung of the shoe with a waterproof, water vapor impermeable sealing plug (for example made of Plexiglas and with an inflatable cuff) waterproof and water vapor tight sealable.
- 4. pouring water into the lining material and closing the Fußeinschlüpföffnung the shoe with the sealing plug
- 5. preconditioning the water-filled shoe by allowing it to rest for a predetermined period of time (3 hours) while maintaining the temperature of the water constant at 35 ° C. The climate of the surrounding area is also kept constant at 23 ° C and 50% relative humidity. During the test, the shoe is blown from the front by a ventilator with an average of at least at least 2 m / s to 3 m / s wind speed (destroying a static layer of air forming around the standing shoe, which would cause considerable resistance to the water vapor passage)
- 6. re-weighing the seal plug-sealed, water-filled shoe after preconditioning (gives weight m2 [g])
- 7. rest again and actual test phase of 3 hours under the same conditions as in step e)
- 8. re-weigh the sealed, water-filled shoe (gives weight m3 [g]) after the test period of 3 hours
- 9. Determination of the water vapor permeability of the shoe from the amount of water vapor (m2 - m3) [g] escaped through the shoe during the test time of 3 hours according to the relationship M = (m2 - m3) [g] / 3 [h]
Both measurement scenarios have been carried out in which
the water vapor permeability values on the one hand for
the entire shoe with water vapor permeable sole unit (value
A) and on the other hand for the entire shoe with wasserdampfundurchlässigem
Shaft bottom construction (value B) has measured, the water vapor permeability value
for the water vapor permeable sole unit
determine solely from the difference A-B.
it is during the measurement of water vapor permeability
of the shoe with the water vapor permeable sole unit
to avoid the shoe or its sole directly on one
closed base stands. This can be done by lifting the shoe
or by stopping the shoe on a grid structure,
so that it is ensured that the ventilation air flow as well
or completely along below the outsole
is useful for each test setup for a given
Shoe repeat measurements and averages
to look at it in order to better assess the spread of the measurements
to be able to. It should be with the measurement setup for each
Shoe be carried out at least two measurements. At all
Measurements should be of a natural variation of the measurement results
of ± 0.2 g / h around the actual value z. B.
1 g / h are assumed. For this example could
thus for the identical shoe measured values between 0.8
g / h and 1.2 g / h are obtained. Factors influencing these fluctuations
could, for example, by the perform the test
Person or of the sealant quality at the upper shank edge
come. By averaging several individual readings for the same shoe
can get a more accurate picture of the actual value
Values for the water vapor permeability of the sole unit
are based on a normal laced men's shoe
Size 43 (French measure),
this size is not standardized and
Shoes from different manufacturers can turn out differently.
Invention will now be described with reference to embodiments which
merely non-limiting examples of the
Implementation of the invention, additionally explained.
In the accompanying drawings show:
1 a perspective view of an embodiment of a shoe with a shaft and a composite shoe sole with an inventively designed sole unit;
2 a perspective view of the shoe according to 1 wherein the composite shoe sole is not yet connected to the shoe upper;
3 the composite shoe sole in accordance with 1 and 2 in a perspective plan view;
4 a schematic cross-sectional view of the in 1 shown shoe in an embodiment with glued Schuhsohlenver bund in the assembly stage according to 2 wherein the shaft is not fully shown; and
5 a schematic cross-sectional view according to 4 However, for an embodiment of a shoe with a molded onto the shaft shoe sole composite, wherein the shaft is also not fully shown.
here terms such as top, bottom, right, left, etc.
used, this is always only on the specific representation
in the respective figure and is not absolute.
The 1 and 2 show in perspective oblique view from below an embodiment of a shoe according to the invention 11 with a shaft 13 and a sole unit according to the invention 15 , In 1 is the shoe 11 shown in a state in which the shaft 13 and the sole unit 15 connected to each other. 2 shows the shoe according to 1 in a mounting step, before the sole unit 15 on the shaft 13 is attached.
The shoe 11 has a forefoot area 17 , a midfoot area 19 , a heel area 21 and a Fußeinschlüpföffnung 23 on. The sole unit 15 has a sole layer in the form of a carrier layer 25 that are crucial to stabilizing the finished sole unit 15 contributes and which in the forefoot 17 and in the midfoot area 19 large openings 27 ( 2 ) having. Due to its stabilizing effect, the carrier layer becomes 25 also called stabilization layer here. Large area in this context means that the individual openings 27 have an area in the range of one to several cm 2 , for example in the range of about 2 cm 2 to about 30 cm 2 , within this range, for example in the range of 10 cm 2 to 20 cm 2 . The breakthroughs 27 are chosen as large as possible to a sole unit 15 to make available with as much water vapor permeability as possible.
Below the carrier layer 25 there is an outsole 29 , which is composed of several individual outsole parts, namely a outsole part 29a in the heel area, a sole part 29b in the ball of the foot and a sole part 29c in the toe area. These outsole parts are at the bottom of the carrier layer 25 attached. In the ball of the foot and in the toe area, the outsole parts show 29b and 29c large openings 27 on, which are dimensioned such that the openings 27 the carrier layer 25 remain completely or substantially free of outsole material, so that through the openings 27 the carrier layer 25 reached water vapor permeability of the sole unit is not affected.
In the illustrated embodiment is located above the carrier layer 25 a cushioning sole layer 31 , which causes a shock absorption and thus improves the walking comfort of the shoe. The damping sole layer 31 has a damping sole part 31a in the heel area and a cushion sole part 31b in the forefoot area. Also the damping sole parts 31a and 31b have large openings on which the openings 27 the carrier layer 25 completely or at least substantially free to the water vapor permeability, which with the openings 27 the carrier layer 25 is achieved, not or not significantly affect
An embodiment of the invention may also be the sole
be formed in one piece. That is, the damping position
and the outsole layer are then combined into a single sole layer,
with regard to impact damping properties and running properties
a two properties as well as possible
Material selection is made.
Not only the damping sole layer 31 but also the parts of the outsole 29 Made of an elastic material with a degree of softness to achieve a good walking comfort and to achieve an outsole with good treading properties. Due to this relatively soft elastic material and due to their composition of individual parts with large apertures, the outsole 29 not sufficient for the stability of the entire sole unit 15 contribute. Even in embodiments with a one-piece outsole, a sufficiently satisfactory stability of the entire sole unit can not be achieved due to the soft elastic material and the large openings.
Due to their relatively soft material and their large openings on the one hand and their composition of individual parts on the other hand offer again the parts of the outsole 29 nor the parts of the damping sole layer 31 the stability desired for a sole unit. For this reason, the carrier layer acting as a stabilizing layer 25 is provided, which can be made of relatively stiff material, because it does not have to take into account any pedal damping properties or Laufsohligenschaften. To the stabilization properties of the stabilization layer 25 , which, despite their relatively stiff material through the large openings 27 to some extent may be impaired to improve, are the individual breakthroughs 27 the carrier layer 25 by means of stabilizing webs 33 bridged. This preserves the carrier layer 25 a degree of bending and torsional rigidity, which is the total sole unit 15 gives the desired stabilization.
As in 2 is shown, the lower end of the shaft 13 with a shaft bottom 35 closed before the sole unit 15 with the shaft 13 is connected. The shaft bottom 35 is with a shaft bottom functional layer 37 provided as below in connection with the 4 and 5 will be explained. This shaft bottom functional layer 37 has, for example, a membrane which is at least waterproof, preferably also water vapor permeable.
While 2 the sole unit 15 in perspective oblique view from below is in 3 the sole unit 15 shown in perspective oblique view from above. As 3 shows are on the off the outsole 29 lying off the top of the carrier layer 25 in the middle area 25b and their forefoot area 25c several pieces 39a . 39b . 39c and 39d one as a fiber layer 39 trained barrier location. With these fiber pieces 39a . 39b and 39c are the in 3 invisible openings 27 the carrier layer 25 covered. In 3 are also in the heel area and forefoot area of the sole unit 15 on the top of the carrier layer 25 arranged tread damping layer parts 31a respectively. 31b to see. The tread damping section 31a in the heel area is in the embodiment shown substantially full-surface, while the tread damping portion 31b in the forefoot area with recesses where the fiber layer pieces 39b . 39c and 39d are provided. The fiber layer pieces 39a to 39d lie above the stabilizing bars 33 , in the 3 are not visible. At the in 3 embodiment shown, the carrier layer 25 boundary edges 43a . 43b and 43c on which the respective opening 27 the carrier layer 25 surrounded and which serve as enclosures for each associated fiber layer piece.
Because the outsole parts of the outsole 29 , the backing layer 25 and the step cushioning parts 31a and 31b different functions within the sole unit 15 have forming Schuhsohlenverbundes, they are expediently constructed with different materials. The outsole parts, which have a good abrasion resistance and should provide sure-footedness, consist for example of a suitable as outsole material thermoplastic polyurethane (TPU) or rubber. The step cushioning parts 31a and 31b , which are to cause a shock absorption in the walking movements for the user of the shoe, consist of correspondingly elastically yielding material, such as ethylene-vinyl acetate (EVA) or polyurethane (PU). The stabilization situation 25 , which is for the non-contiguous outsole parts 29a . 29b . 29c and for the likewise non-coherent footfall cushion parts 31a . 31b as a carrier and for the entire sole unit 15 serves as a stabilizing element and should have a corresponding elastic stiffness, for example, consists of at least one thermoplastic.
The fiber layer pieces 39a . 39b . 39c and 39d on the one hand serve as mechanical protection for the shaft bottom functional layer 37 , with which the shaft bottom 35 is provided. Small particles, such as pebbles, which the breakthroughs 27 the carrier layer 25 penetrate and shank floor functional layer 37 can penetrate and damage them, protecting the shaft bottom functional layer 37 kept away from the fiber layer pieces. In one embodiment of the footwear according to the invention, the fiber layer pieces have 39a . 39b . 39c and 39d additionally a stabilizing function. For this purpose, there are the fiber layer pieces 39a . 39b . 39c and 39d from a mechanically mechanically solidified fiber material of the type already mentioned with at least two fiber components of different melting temperature and correspondingly different softening temperature. By selecting the ratio of the proportions of the two different melting temperature fiber component and by the degree of heating and thus the softening of the second fiber component, on the one hand, the thermal solidification and on the other hand, the water vapor permeability of the fiber layer can be influenced as desired. Due to their thermal solidification, the fiber layer 39 or can the fiber layer pieces 39a . 39b . 39c and 39d as stabilizing elements for the sole unit 15 serve.
The fiber layer 39
as such is already known WO 2007/101624 A1
, Further details regarding the fiber layer 39
from which the fiber layer pieces 39a
exist, both in terms of choice of material and material composition as well as in terms of production and thermal activation, are therefore not given at this point in more detail but can the WO 2007/101624 A1
be removed. The same applies to details regarding the outsole 29
, the pedal damping position 31
and the carrier layer 25
, for example, in terms of structure, shape and materials used, which is also the WO 2007/101624 A1
can be removed.
has already been mentioned before, this has practical
Embodiments used fiber layer material has the disadvantage
that for the second fiber component with the lower melting temperature
used material does not stain because of
The dyeing temperatures are needed above
the melting temperature of this fiber component lie. Therefore lets
at most the fiber component with this fiber sheet material
the higher melting temperature, while the
second fiber component with the lower melting temperature remains white.
Therefore, as already stated, the optical
and aesthetic design possibilities for
the fiber layer set very narrow limits.
This problem is with a decorative layer according to the invention 45 remedied in the 1 and 2 than in the openings 27 visible grid and explained in the following 4 and 5 each represented by a series of square dots. In the in the 1 and 2 illustrated embodiment of a sole unit 15 are several decorative layer pieces 45 provided, each one of the openings 27 the stabilization situation 25 are assigned and depending on the dimensions of each associated aperture 27 have, according to the in 3 shown fiber layer pieces 39a . 39b . 39c and 39d , In this way, the through the respective of the openings 27 visible underside of each of these fiber ply pieces 39a . 39b . 39c and 39d laminated by an associated decorative layer piece and thus made invisible. As for the decorative layer 45 almost any materials can be used, as long as they are on the one hand colored or dyeable and on the other hand water vapor permeable, is the desired color and patterning of the decorative layer 45 barely set a limit.
In the 4 and 5 are two embodiments of inventive footwear in the manufacturing stage according to 2 shown in cross-sectional view, in the case of 4 in terms of footwear with the shaft 13 glued-on sole unit 15 and in the case of 5 in terms of footwear with the shaft 13 molded sole unit 15 , Both figures show a very schematic and in terms of dimensions and scale not necessarily realistic representation of a cross section through z. B. a forefoot of a shaft 13 a shoe 11 , Here are of the shaft 13 only the shaft bottom 35 and a left shaft part, wherein the right shaft part, not shown, is mirror-symmetrical with the shaft part shown.
In the in the 4 and 5 shown two embodiments, the shaft 13 a top material situation 47 a shank functional layer 49 and a liner 51 on. In both embodiments, the sole side lower shaft end 55 by means of a multilayer shaft bottom 35 closed, which is a shaft bottom functional layer 37 has. In both embodiments, the shank functional layer is 49 and the shaft bottom functional layer 37 connected in a watertight manner, resulting in a completely watertight and when using a not only waterproof but also water vapor permeable functional layer all around steam permeable shoe. And in both embodiments, the sole unit 15 already related to the 1 to 3 mentioned components, namely an outsole 29 and a carrier layer 25 , In both cases, the large-area opening 27 which extends through said sole layers, from a fiber layer 39 covered, below which a decorative layer 45 located.
The two embodiments of the 4 and 5 differ with regard to the positions of their sole unit 15 , the structure of their shaft bottom 35 , the type of fastening of the sole unit 15 on the shaft 13 and the nature of the seal between the shank functional layer 49 and the shaft bottom functional layer 37 ,
At the in 4 embodiment shown, the sole unit 15 in addition to the outsole 29 and to the carrier layer 25 a step damping position 31 on and has the shaft bottom 35 a mounting sole 53 , also commonly called insole, with the sole side lower shaft end 55 by means of a stitching seam 57 connected is. Below the mounting sole 53 There is a shaft bottom functional layer laminate 59 in the illustrated embodiment, a three-ply laminate comprising the shaft bottom functional layer 37 embedded between a lower functional layer support layer 61 and an upper functional layer support layer 63 , having. The two functional layer carrier layers 61 and 63 For example, each consist of a textile layer. The upper textile layer 63 is formed such that it is made of liquid sealing material 65 which can be penetrated between the underside of the sole-side lower end of the shaft functional layer 49 and the top of the peripheral edge of the shaft bottom functional layer 37 is arranged to provide a watertight seal between tween the shank functional layer 49 and the shaft bottom functional layer 37 manufacture. As in 4 is shown, is the sole-side lower end of the upper shaft material 47 from the bottom side lower end of the shaft functional layer 49 lifted off and by means of sole adhesive 67 with the bottom of the shaft bottom functional layer laminate 59 bonded. The sole unit 15 is prefabricated and is made by means of a sole adhesive 67 at least on the top of the peripheral edge zone of the sole unit 15 has been applied to the sole side lower shaft end 55 attached.
At the in 5 illustrated embodiment with the shaft 13 molded sole unit 15 has the sole unit 15 no shock absorption layer 31 on. The shaft bottom 35 is through a mounting oil laminate 69 formed, which is also a three-layer laminate, whose outer layer, in the illustrated embodiment, the upper outer layer 63 , Made of such a stable and solid material that this Montagaresohlenlaminat 69 the function of a mounting sole or insole for closing the lower shaft end 55 can take over. In this embodiment, the shaft functional layer 49 and the shaft lining 51 at the sole end a supernatant over the upper shaft material 47 on. This supernatant is by means of a mesh band 71 bridged, which is permeable for injection molding liquid outsole material. The network band 71 is on one side only with the shaft upper 47 connected, but not with the shank functional layer 49 , and is on the other side of a stitching seam 57 with both the shank functional layer 49 and the shaft lining 51 as well as with the mounting material laminate 69 connected. The sole unit 15 this embodiment has, in addition to the fiber layer 39 and the decorative layer 45 provided carrier layer 25 only one outsole position 29 on, in which the with the fiber layer 39 and the decorative layer 45 equipped carrier layer 25 in the process of molding the outsole layer 29 in the 5 is embedded manner illustrated. When molding the outsole layer 29 to the shaft 13 On the one hand, liquid outsole material penetrates through the net band 71 through to the supernatant of the sole-side lower end of the shaft functional layer 49 and to the strobel seam 57 before and on the other hand to the bottom of the peripheral edge portion of the Montagaresohlenlaminats 69 where it penetrates its lower Textilla ge and there to to the shaft bottom functional layer 37 can get. In this way, by means of outsole material, the transition between the shank functional layer 49 and shaft bottom functional layer 37 sealed.
Both in the 4 and 5 illustrated embodiments, the carrier layer 25 preferably produced by an injection process. This can be the decorative layer 45 and the fiber layer 39 be inserted into the injection mold before the injection process. During the injection process material penetrates the carrier layer 25 through the outer peripheral region of the decorative layer 45 through and into the outer peripheral region of the fiber layer 39 into it, so that the carrier layer 25 , the decor situation 45 and the fiber layer 39 be secured together by means of the injection process.
In a modification of the in the 4 and 5 The embodiment shown, the fiber layer 39 and the decor layer 45 united together to form a structural unit, before being connected to the sole unit 15 get connected. This assembly may form an insert separate from the remaining components of the sole unit 15 made and in the manufacture of the sole unit 15 is used. This insertion takes place in the sole layer, with which the assembly of decorative layer 45 and fiber layer 39 should be provided.
In the embodiments illustrated in the figures, this insert is in the carrier layer 25 used. In other embodiments, not shown, in which the with the decorative layer 45 and the fiber layer 39 provided sole layer is not formed by a carrier layer but for example by an outsole or a midsole other than the carrier layer, the insert can be used in the corresponding sole layer. That is, the insert is made separately and then becomes the particular sole unit depending on the construction and / or desired appearance 15 used in a suitable sole position. You can use inserts with visually different decor layer 45 keep in stock and in the sole unit 15 depending on which shoe type it is intended for, use a suitably selected insert.
At the in 5 shown embodiment is within the aperture 27 the carrier layer 25 at least one of the stabilizing webs as a support bar 73 educated. For this purpose, the support bridge 73 designed so that it up to the tread surface 75 the outsole position 29 extends down and thus while running with the shoe as well as the outsole position 29 on the ground 77 supported. Therefore, with the in 5 shown supporting bridge 73 a particularly good stabilization of the sole unit 15 also achieved while running.
Such a support bar is in the in 4 shown embodiment at least in the cross-sectional plane shown in the opening 27 the carrier layer 25 unavailable.
QUOTES INCLUDE IN THE DESCRIPTION
The documents listed by the applicant have been automated
generated and is solely for better information
recorded by the reader. The list is not part of the German
Patent or utility model application. The DPMA takes over
no liability for any errors or omissions.
Cited patent literature
- EP 0382904 A2 
- - EP 0275644 A2 [0002, 0003]
- WO 2004/028284 A1 
- WO 2006/010578 A1 
- WO 2007/147421 A1 
- WO 2008/003375 A1 
- - WO 2007/101624 A1 [0006, 0008, 0010, 0010, 0083, 0083, 0083]
- US 4725418A 
- - US 4493870 A 
- US 3953566A 
- - US 4187390 A 
- - US 4194041 A 
- - US 5,329,807 A 
- - EP 0396716 B1 [0059, 0059, 0059, 0060]
Cited non-patent literature
- - EN 344-1 
- - DIN ISO 5084 (10/1996) 
- - ISO standard 0811 from 1981 
- - DIN EN 31092 (02/94) 
- - ISO 11092 (1993) 
- - DIN EN ISO 15496 (09/2004)