EP3143893A1 - Insole - Google Patents
Insole Download PDFInfo
- Publication number
- EP3143893A1 EP3143893A1 EP15185713.3A EP15185713A EP3143893A1 EP 3143893 A1 EP3143893 A1 EP 3143893A1 EP 15185713 A EP15185713 A EP 15185713A EP 3143893 A1 EP3143893 A1 EP 3143893A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insole
- coating
- sole surface
- pattern
- sole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 4
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- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 2
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Images
Classifications
-
- 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
- A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
- A43B13/24—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions
- A43B13/26—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions projecting beyond the sole surface
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
- A43B17/006—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material multilayered
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
- A43B13/24—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
- A43B17/102—Moisture absorbing socks; Moisture dissipating socks
- A43B17/105—Disposable
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/18—Arrangements for attaching removable insoles to footwear
Definitions
- the invention relates to an insole for shoes with a base material, which has a shoe facing sole surface and an opposite foot facing foot, wherein on the sole surface a coating is applied, which gives the sole surface of the insole a relation to the uncoated sole surface increased frictional force, wherein the coating of a Variety of coating lines exists.
- Another shoe insole is from the US 2002/0066209 A1 in which a multiplicity of stripe patterns are shown extending from one side to the other or from one edge to the other of the sole surface and which may be either continuous or interrupted.
- the linear patterns can consist of both straight and curved lines.
- an anti-slip coating provided in the form of a wire mesh is known from the document.
- an object of the present invention to provide an insole for shoes, which provides an anti-slip effect in the desired manner, at the same time has sufficient flexural rigidity, while largely preserving the basic material of the insole to own and desired properties, such as air permeability and / or breathability.
- an insole for shoes having the features of claim 1, wherein the coating is formed of a plurality of individual patterns formed by coating lines, which are discrete from each other and arranged so that they are not continuous by one or more of a first Side of the sole surface to an opposite second side of the sole surface extending continuous coating line can be formed.
- individual patterns are to be understood as those patterns which are designed as open or closed patterns.
- Open patterns are those patterns in which the beginning of the line has no contact with the line end and closed patterns those in which the beginning and end of a line can no longer be determined because they are connected to each other.
- only those patterns are to be single patterns according to the invention, which can not be reduced to a simple point or a simple straight line. That is, a single pattern must be more than one point, and when designing a pattern as a line, the line may not extend exclusively as a straight line in only one vector direction, but this pattern of lines will have at least one bend and / or at least one bend got to.
- Discrete individual patterns are those which are either completely separated from each other, or else Individual patterns that can also be tangent, cut and / or overlap. In spite of being tangential, cutting or overlapping, the individual pattern can nevertheless be recognized as a single pattern from its areal extent defined by the direction predetermined by the coating line. Individual patterns are also understood to mean pattern groups, which in particular are composed of at least two, identical and / or different pattern elements.
- arrangements are understood as pattern groups, in which at least two pattern elements are arranged side by side and in contact, or in particular pattern groups, in which a pattern element at least partially surrounds or rotates another pattern element, such as concentric arrangements, in particular circles, ovals, Triangles or other polygons or nested geometric figures of any kind that touch each other in one point.
- the individual patterns formed from coating lines are at least partially, preferably completely surrounded by an uncoated area and / or also comprise an uncoated area, and at least partially, preferably completely, circumscribe this uncoated area.
- the coating of the sole surface of the insole consists exclusively of coating lines and that no full-surface coating of the sole surface in the sense of a continuous nationwide, uninterrupted order takes place.
- the individual patterns are achieved by linear coatings, where a line is to be understood as an element in which a line width of at least 0.2 mm is executed and the line has a length which is at least 5 times the line width.
- the linear coatings of a single pattern can basically have both straight lines and curved lines, as well as corresponding lines that intersect.
- the lines can basically be designed as both continuous and interrupted, provided that the line as such remains clearly recognizable. That is, it is also conceivable dashed, dash-dotted or dotted coating lines in the context of the present invention.
- the interrupted points must not be more than 10 times, especially not more than 8 times, in particular not more than 6 times, in particular not more than 4 times, the line width of the line adjacent to this interrupted point.
- the sides of the sole surface are understood to mean all edges or edges thereof.
- At least one individual pattern is formed so that for each direction extending in the sole surface or a curved sole for each tangential to the sole a portion of this individual pattern is perpendicular thereto. That is, for any possible direction in the sole surface, if the sole is flat, there exists a portion in the single pattern that is perpendicular thereto.
- the line-shaped coating with a curvature, a better distribution of the forces in different directions can be achieved. In this way, a particularly good slip resistance can be achieved.
- the Section point-like in which case an imaginary tangent applied at this point always runs perpendicular to a direction in the shoe sole.
- At least 20%, in particular at least 40%, in particular at least 50%, in particular at least 60%, in particular at least 80%, in particular 100% of the individual patterns have at least one section which runs perpendicular to any direction of the sole surface.
- this at least one section is punctiform and an imaginary tangent applied thereto runs perpendicular to an arbitrary direction in the sole area.
- the individual patterns provided on the sole side may have the same or different geometric shapes and in particular be configured in the same and / or different dimensions / dimensions.
- At least one single pattern may be formed as a pattern group comprising at least two pattern elements formed from coating lines. Particular preference is given to forming at least 20%, in particular at least 40%, in particular at least 50%, in particular at least 60%, in particular at least 80%, of the individual patterns from a sample group.
- each individual pattern is constructed from a plurality of pattern elements.
- the pattern group may be constructed, for example, from inner and outer pattern elements and / or to a total pattern of merging pattern elements or other pattern elements, for example, side by side and thereby are arranged touching, be constructed.
- a pattern element of a single pattern at least partially surrounds a second pattern element, but in particular completely.
- the lines are at least partially touching one another or running in parallel with each other.
- Such patterns can be arranged particularly ergonomically.
- the individual patterns are surrounded by an uncoated outer region, which has a different geometric shape from the geometric shape of the individual pattern. This is to be achieved in particular that, unlike, for example, grid patterns and stripe patterns, there are no preferred directions, but a slip resistance can be provided on all sides equally well.
- At least one individual pattern is enclosed on all sides by an uncoated outer region. It is particularly preferred that a plurality of individual patterns per insole, which are applied to the sole surface, is surrounded on all sides by an uncoated outer region. In particular, all individual patterns per insole are preferably surrounded by an uncoated outer region. In this way it can be achieved that on the one hand by the linear, instead of previously known punctiform coatings, the flexural rigidity of an insole can be increased, whereby an easier insertion into the sole is achieved, but also a higher stability of the insole is achieved under load For example, in a sports shoe, as the insole by the sliding of the foot in the shoe must record. On the other hand, at the same time it is achieved that, in contrast to a full-surface coating application, the desired properties of the base material of the insole, such as air permeability and / or breathability of the insole can be kept high
- Such soles with a linear coating in the form of individual patterns represent a good compromise with regard to bending stiffness, air permeability and / or breathability with simultaneously good ergonomic adaptation to the foot of a wearer or to the surface contours of the shoe.
- the anti-slip properties it may be provided to apply the plurality of individual patterns in a regular repeat or not to arrange them regularly.
- the multiplicity of individual patterns cover the sole surface essentially in its entire extent, that is to say not only special areas such as the heel and / or foot ball area. It is therefore preferred that the individual patterns extend over the entire sole surface, wherein depending on the intended pattern individual areas of the sole surface, such as the ball area and / or heel area, may have an increased pattern density and other areas, such as the arch area a smaller Pattern density may have. It is also conceivable, depending on the area of the sole area, to select different individual patterns or to vary them in the pattern size.
- the sole surface may have a degree of coverage by the coating lines of at least 6%, in particular at least 8%, in particular at least 10%, more particularly at least 20% and in particular at most 50%, more particularly at most 40% and further in particular at most 30%.
- a good flexural rigidity of the insole is achieved and desirable properties of the base material, such as e.g. Air permeability, breathability not changed too much, but preserved.
- the individual samples are considered in total, they preferably have an area fraction of at least 20%, in particular at least 30% and more particularly at least 40% and in particular at most 80%, more particularly at most 70% and more particularly at most 60% of the sole surface.
- the area of a single pattern is here understood to be the area enclosed by the outer coating lines (including the coating lines), thus also the inner uncoated areas of the single pattern or in the embodiment as a pattern group of the associated areas of the individual pattern elements are taken into account.
- a single pattern preferably has an area with an extension distance between the outer coating lines of at least 0.3 cm, preferably at least 0.5 cm, more preferably at least 0.7 cm, more preferably at least 1.0 cm, more preferably at least 1.5 cm , more preferably at least 2 cm, more preferably at most 5 cm, more preferably at most 4 cm, further preferably at most 3 cm.
- the z. B. may be a diameter, it is understood the distance between each of the distal most distant coating lines that describe or limit a single pattern. It is measured at the outer edge of the coating line, ie including the line width.
- a single sample, including the circumscribing coating lines, preferably has an area of at least 0.2 cm 2 , more preferably of at least 0.5 cm 2 , more preferably of at least 1.0 cm 2 , more preferably of at least 1.5 cm 2 , more preferably at most 10.0 cm 2 , more preferably at most 8.0 cm 2 , more preferably at most 6.0 cm 2 .
- the individual patterns may be different or the same in terms of their geometric shape and / or their dimensions.
- the various properties of the insole such as coverage, anti-slip properties, bending stiffness, air permeability, breathability can be taken into account and realized by adjusting the individual patterns.
- the line width may be at least 0.2 mm, in particular at least 0.4 mm, in particular at least 0.5 mm and more particularly at least 0.6 mm.
- the line width should preferably be at most 2 mm, more preferably at most 1.6 mm, more preferably at most 1.2 mm, more preferably at most 1.0 mm.
- the line length in relation to the line width should be at least 5 times, preferably at least 6 times, more preferably at least 8 times and more preferably at least 10 times the line width.
- the height of the coating lines should be at least 0.1 mm, in particular at least 0.2 mm.
- the height of the coating line should be at most 0.8 mm, more particularly at most 0.6 mm and more particularly at most 0.4 mm.
- the measurement of the height can be determined with a microscope with a corresponding magnification, as the difference between an averaged upper edge of the base material and the upper edge of the coating line.
- the basis weight of the coating may be at least 5 g / m 2 , in particular at least 10 g / m 2 , more particularly at least 15 g / m 2 and more particularly at least 20 g / m 2 .
- the basis weight should preferably limited to 50 g / m 2 and more particularly to at most 30 g / m 2 .
- the coating is in particular polymer-based and in particular based on a polymer taken from the group comprising PE (polyethylene), PP (polypropylene), APAO (amorphous polyalphaolefins), EVA (ethylene-vinyl acetate), EVAC (ethylene-vinyl acetate copolymers), PA (polyamides), TPE -O (olefin-based thermoplastic elastomers), TPE-V (olefin-based crosslinked thermoplastic elastomers), TPE-E (thermoplastic copolyesters), TPE-U (urethane-based thermoplastic elastomers), TPE-A (thermoplastic copolyamides, eg PEBA), TPE -S (thermoplastic styrene block copolymers), such as HSBC (hydrogenated styrene block copolymers), SEBS (styrene-ethylene-butadiene-styrene polymers), SBS (
- Preferred materials for the coating are materials having a Shore A hardness of at least 30, in particular of at least 40, in particular of at least 50, more particularly at least 60 and in particular not more than 90, more particularly not more than 80, more particularly not more than 70 ,
- the Shore A hardness represents a material characteristic value for elastomers and plastics.
- the Shore A hardness is determined here in accordance with the following method.
- the Shore A hardness is a measure of the resistance of a material to the penetration of a body of a certain shape and under a defined spring force. Thereby The Shore hardness units are given the value 0, the smallest and the value 100, the highest hardness.
- a Shore A hardness tester is used.
- Such a hardness tester according to Shore A which is shown schematically in FIG. 5 60, uses a spring loaded indenter of the geometry of a truncated cone.
- the steel indentation member 62 has a diameter D1 of 1.25 ⁇ 0.15 mm, which is formed into a lower truncated cone having a lower surface with a diameter D2 of 0.79 ⁇ 0.01 mm and an inclination angle W of 35 ° ⁇ 0 , 25 ° opens.
- the distance C between the lower edge of a presser foot 64 and the lower surface of the indenter is 2.5 ⁇ 0.02 mm.
- the indentor is centered within the presser foot 64 with a recess having a diameter D3 of 3 ⁇ 0.5 mm.
- test should be carried out on specimens not mechanically pre-stressed.
- the test piece should already be fully polymerized or vulcanized for 16 hours.
- the test is carried out under standard conditions at 23 ⁇ 2 ° C and 50 ⁇ 2% humidity.
- the specimens and equipment are conditioned for at least 1 hour.
- the specimens need dimensions that allow for measurements at least 12 mm from each edge, and have a sufficiently plane-parallel bearing surface so that the pressure pad can contact the specimen on an area at least 6 mm in radius around the tip of the indenter.
- Specimens with a material thickness of at least 4 mm are required. at small thicknesses, the specimens may be composed of several thinner layers.
- Each specimen is measured at least 5 different points, with a distance of at least 12 mm from the edges of the specimen. The distance between the measuring points should be at least 6 mm.
- the pressing weight of the indenter is 1 kg.
- the measuring time is 3 seconds, i. the hardness is read 3 seconds after touching the bearing surface of the tester and the specimen.
- the coating lines are preferably applied by means of a roller which has an engraving corresponding to the pattern (sum of the individual patterns).
- the sole side with the coating can have a dynamic coefficient of friction measured on the basis of ASTM D 1894-01 of at least 0.6, in particular at least 0.8 and more particularly at least 1.0, with maximum values of at most 2.0, more particularly at most 1 , 5 and in particular more than 1.2 are to be achieved. As a result, sufficient frictional forces are generated, but on the other hand ensures easy removability of the insole.
- the sliding behavior of insoles according to the invention with coating should be determined.
- the provided with the coating sole surface of the insole is pulled against a standardized surface.
- the occurring sliding friction force A should be measured and then the dynamic Sliding friction coefficient can be determined.
- the test method is based on ASTM D 1894-01, for the determination of the friction behavior of plastic films.
- the specimens shall be conditioned for a minimum of 2 hours in a standard atmosphere at 23 ° C ⁇ 2 ° C and 50% ⁇ 2% humidity. The samples must not be kinked, folded or scratched; other changes and contamination are to be avoided. The same applies to the steel test plate.
- the test method shall also be carried out under standard conditions (23 ° C ⁇ 2 ° C, 50% ⁇ 2%).
- the insole with coating or from a corresponding roll product a sample body of a dimension of 50 x 50 mm is punched out and attached without creases to a friction pad.
- the roll goods are exactly the material from which the insoles according to the invention are punched out.
- the friction block has a base area of 63 mm x 63 mm edge length, so a contact base area of 40 cm 2 and a mass of 200 g ⁇ 5g. It is fastened by a thread (without self-expansion) to the load cell of a tensile testing machine according to DIN 51 221 Class 1.
- a tensile testing machine is the tester Zwick Roell type Z010 from Zwick GmbH & Co. KG, 89079 Ulm, Germany.
- the additional device consisting of the sample table and friction block according to DIN EN ISO 8295: 2014 is also offered by Zwick.
- the friction pad with the specimen is carefully placed on a defined material, a smooth polished steel plate (DIN EN 1939: 2003-12). 15 seconds after placing the friction pad, the experiment is started.
- the test speed is 150 mm / min, both for the actual measuring path of 130 mm, as well for the pre- and Nachmessweg of 10 mm.
- For determining the dynamic sliding friction coefficient p only the force curve of the measuring path of 130 mm is used.
- the test is carried out for at least five specimens. An average value x and the standard deviation s are rounded to two decimal places.
- the dynamic sliding friction coefficient is given by the quotient of the thus determined sliding friction force A expressed in grams (g) by the force exerted by the friction pad of 200 g.
- the insole should have a preferred bending stiffness of at least 500 mN, in particular at least 600 mN, more particularly at least 700 mN, further in particular at most 3000 mN, more particularly at most 2000 mN.
- the insole may have an increased flexural rigidity compared to an insole without coating lines on the sole surface, wherein in particular the flexural rigidity is increased by 5%, more particularly by 10%, further in particular by 15%.
- the bending stiffness should preferably be increased by at most 50%, more particularly by at most 40%, and more particularly by at most 30% by the coating lines of the individual patterns. The bending stiffness is determined here by the following test:
- the flexural rigidity of each 10 samples is determined using a commercially available device for determining the flexural strength (at 23 ° C ⁇ 2 ° C and 50% ⁇ 2% Humidity).
- the overhang for the placement of the probe is 6 mm within the edge area of the specimen 37 (see FIG. 4b and 4d ).
- the device 30 used for the flexural strength measurement is in the FIGS. 4a to 4d shown schematically.
- For the measurement was also a rotational angular velocity of 6 ° / sec. set.
- As a specimen a specimen with the dimensions 40 mm x 40 mm was defined.
- the correspondingly defined sample body was punched out.
- the device 30 used for the flexural strength measurement in this case comprises a sample holder 32 with a clamping clamp 34 and a knurled screw 36, which allows a coincidence of the two clamping plates 34a and 34b for fastening the sample body 37.
- the clamping clamp 34 is applied to a disk-shaped plate 38, this plate 38 by means of device-internal function control during the measurement performs a clockwise rotation according to the input bending angle (here 30 °).
- the rotational angular velocity of the plate 38 is 6 ° / sec.
- the choice of the bending angle can be determined at a further device area 40 and adjusted by means of a knurled screw 42.
- the actual measuring device 44 comprises a measuring cell 46.
- the forces received by a measuring sensor 48 are transformed into a measuring cell 46 Force measured value and ultimately displayed as a measured value on a display 50.
- the sensor 48 is designed in this device in the form of a vertical cutting edge.
- the already mentioned bending length L (ie the length of the power arm) is adjustable by adjusting the measuring device 44 via a thumbscrew 52 in the direction of the arrow 53.
- the bending length L is to be understood as the length of the area which is between the sensor and the nearest edge of the clamping clamp 34 and forms the force arm; the bending length L is 10 mm.
- the quadrangular specimen 37 (see FIG. 4d ) is fixed between the clamping plate 34a, b of the clamping clamp 34 in the sample holder 32.
- the clamping clamp 34 and its clamping plates 34 a, b in this case have a width of 2.4 cm and a length of 4.0 cm.
- the sample body 37 is clamped with the coating having the upper side in the direction of the probe.
- the cutting edge of the probe is also brought to the other end of the sample body and adjusted until the sample touches, so that the sample twill just touches the cutting edge of the probe.
- An overhang 55 of the specimen 37 over the edge of the probe is about 6 mm (see FIG. 4d ).
- the plate 38 rotates clockwise with the clamping clamp 34 up to the specified bending angle, which then leads to a deformation of the sample body.
- the specimen is bent against the measuring cell.
- the forces caused by the deformation are converted into readable measurement data and displayed on the display 50.
- the insole may be formed with respect to the base material one or more layers and in particular a Nonwoven material include.
- the nonwoven materials preferably comprise natural cellulose-based fibers or synthetic fibers or mixtures thereof.
- the base material has, especially in multilayer base material, a base layer with a basis weight preferably of at least 180 g / m 2 , more preferably of at least 200 g / m 2 , more preferably of at least 220 g / m 2 , more preferably of at most 300 g / m 2 , more preferably at most 280 g / m 2 , more preferably at most 250 g / m 2 .
- the thickness of the insole, including the coating on the sole surface is preferably 1 to 3 mm, preferably 1 to 2 mm.
- the determination of the thickness of an insole is carried out using a specific measuring pressure of 0.5 kPa on a probe surface of 25 cm 2 .
- a thickness gauge DMT Schröder can be used.
- the thickness is determined in accordance with DIN EN ISO 9073-2: 1995.
- the insole has an air permeability of at least 50 mm / s, in particular at least 70 mm / s, more particularly at least 100 mm / s.
- the measurement of the air permeability is based on the standard DIN EN ISO 9237: 1995-12.
- the air permeability is expressed as the velocity of an air flow which under defined conditions, namely for the test area, the differential pressure and time, perpendicular to the surface passes through the sample.
- the test instrument used is an air permeability tester in accordance with DIN EN ISO 9237.
- Such Gutyersprüfêt comprises a circular sample holder with an opening with a defined für Design, 20 cm 2 , further a device for torsion-free and secure attachment of the sample, more preferably also additionally a guard ring device, as an addition to the aforementioned device for preventing escape of air over the sample edges, further a pressure gauge connected to the probe, a device for generating a constant air flow and for adjusting the flow rate at which a differential pressure can be generated and further a flow meter for displaying the flow velocity.
- a device for generating a constant air flow and for adjusting the flow rate at which a differential pressure can be generated and further a flow meter for displaying the flow velocity.
- sample preparation Before starting the test, store the sample for a minimum of 24 hours in standard atmosphere at 20 ⁇ 2 ° C and 65 + 4% relative humidity. The same conditions must be set during the test (20 ⁇ 2 ° C and 65 ⁇ 4% RH).
- the test specimen shall be affixed to the circular sample holder with sufficient tension to avoid wrinkles. However, if wrinkles occur, make sure that the fabric, ie the test specimen is not twisted in the clamping plane.
- the sole surface is clamped with the coating in the direction of the negative pressure side, to avoid leaks.
- the suction fan which is suitable for pressing the air through the test pattern or another such device is to be put into operation and the flow rate is to be adjusted continuously until the differential pressure is reached. After reaching flow velocities under stable conditions, at least after waiting at least one minute, note the flow velocity.
- the test must be repeated at different points in the test sample at least 10 times under the same conditions.
- the differential pressure used in the present case is the insole 100 Pa.
- test sample may be used by assembly with a substrate. Then, in addition to the measurement of the actual test pattern, parallel to the correction and normalization necessary in measurement Measurements, so-called negative and zero controls, which take into account the carrier and adhesive materials, are included and included in the evaluation.
- the insole is preferably a disposable product. Basically, however, insoles are conceivable that can be washed or cleaned.
- an insole can be provided, which have particularly favorable properties in terms of flexural strength, breathability, air permeability and anti-slip properties of the sole.
- FIG. 1 shows a plan view of the sole surface of an insole 100 according to the invention, wherein the sole surface 102 faces in application of the insole of an insole of a shoe and the surface facing the sole surface of the foot faces the foot.
- the insole 100 is made of a base material of nonwoven materials made of a mixture of natural cellulose-based fibers and synthetic fibers. This base material forms a cotton batt layer and is solidified by being emboss-calendered, that is, passed between a heated calender roll having projecting embossing protrusions and a counter pressure roll. In this way, the one from the FIG. 2 apparent surface structure formed in the illustrated case punctiform and web-shaped embossed structures 106.
- the engraving depth achieved by the calendering is 0.7 mm in the present case, but can be adjusted as desired by those skilled in the art on the basis of his knowledge.
- highly compressed embossed regions 106 form, in addition to the less densified regions 110.
- the proportion of the high-density regions 106 on the total area in this case is 5-10%.
- the bonding of the layers can be achieved via a calender system with two steel rollers over pressure and temperature, and at the same time the embossing 106 are applied.
- the means one of the two calender rolls has an engraving.
- the multilayer base material of the insole has a base layer with a grammage of preferably 200-250 g / m 2 .
- a coating 112 of coating lines 114 is provided on the sole of the foot facing away from the soles of a shoe sole surface 102 of the insole 100.
- the coating lines 114 are polymer-based and are preferably made of EVA (ethylene vinyl acetate).
- the material preferably has a Shore A hardness of 60-80.
- the coating lines are applied by means of an engraving process, wherein the insole 100 is passed between a gravure roll and a counter roll.
- the width of the coating lines in the present case is 0.5 to 0.7 mm.
- the height of the coating lines is preferably 0.2-0.3 mm, so that no unpleasant haptic effects occur on the foot due to the applied coating pattern.
- each individual pattern 120 is preferably formed by pattern groups 124, wherein the pattern groups consist of at least three pattern elements 126, in this case concentrically arranged circles, and no coating composition is applied between the individual circles of each individual pattern group forming an individual pattern, ie an uncoated region 116 therein is present.
- This way will achieved by the coating lines 114 in total a degree of coverage on the sole surface of about 20 - 25%.
- the individual elements 120 As such, a relatively high area coverage of 80% of the sole area 102 is obtained, that is, the free areas outside the individual patterns 120, ie the outer uncoated areas 118 surrounding the individual patterns occupy approximately 20% of the sole area 102 , In this way, the flexural rigidity of the insole 100 can be advantageously designed while at the same time having little effect on the properties attributed and desired to the insole base material, such as air permeability and / or breathability, which is not significantly affected by the coating.
- sides (edges) of the sole 100 in each case two opposite edge sections of the sole 100 are considered. In this way, the anti-slip properties can be improved in all directions.
- Angle 132 from 90 ° to any direction 130 in the surface of the insole 100 runs, as in FIG. 3a is shown schematically. In this way, each direction of movement can be counteracted by a portion that is perpendicular thereto and thus has the optimum slip resistance for this direction of movement. Such a portion can also be formed by an imaginary tangent 134 can be applied, which is perpendicular to the respective slip direction.
- the individual patterns 120 are discrete from each other and, in particular, do not merge into one another such that the individual patterns 120 dissolve in the entirety of the patterns, as is the case, for example, for the single rhombuses or squares in a grid pattern ,
- FIGS. 3a-3e show the FIGS. 3a-3e , where both different single patterns can be combined with each other, as the FIGS. 3a . 3b . 3d and 3e
- the individual patterns with regard to the formation of the coating lines may have a difference.
- a single pattern 120 is composed as a pattern group 124 of a plurality of pattern elements 126, these can, as in FIGS. 3a and 3b represented, fully circulate each other at a distance, but also rotate around each other so that there are points of contact. It is beyond that It is also possible that the individual pattern elements of a single pattern 120 are arranged to form touching or cutting areas, as for example Figure 3c shows. Also the single patterns according to the FIGS. 3a to 3e can be analogous to FIG. 1 be formed so that the individual patterns intersect, tangent or overlap.
- the coefficient of dynamic friction of the coated sole surface measured on the basis of ASTM D 1894-01, is between 0.8 and 1.4.
- the flexural stiffness of the coated insole 100 according to the invention is preferably 700-1000 mN, with a percentage increase in flexural stiffness relative to the uncoated sole of 15-20%.
- the air permeability of the insole is approx. 100 mm / s.
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Abstract
Einlegesohle (100) für Schuhe mit einem Grundmaterial, das eine schuhzugewandte Sohlenfläche (102) und eine gegenüberliegende fußzugewandte Fußfläche aufweist, wobei auf der Sohlenfläche (102) eine Beschichtung (112) vorgesehen ist, die der Sohlenfläche (102) der Einlegesohle (100) eine gegenüber der unbeschichteten Sohlenfläche (102) erhöhte Reibungskraft verleiht,dadurch gekennzeichnet, dassdie Beschichtung (112) aus einer Vielzahl von durch Beschichtungslinien (114) gebildeten Einzelmustern (120) ausgebildet ist, die voneinander diskret sind und so angeordnet sind, dass sie nicht durch eine oder mehrere kontinuierlich von einer ersten Seite (122a) der Sohlenfläche (102) zu einer gegenüberliegenden zweiten Seite (122b) der Sohlenfläche (102) verlaufende durchgehende Beschichtungslinie (114) bildbar sind.An insole (100) for footwear having a base material comprising a shoe facing sole surface (102) and an opposing foot facing foot surface, wherein on the sole surface (102) there is provided a coating (112) corresponding to the sole surface (102) of the insole (100). a frictional force increased relative to the uncoated sole surface (102), characterized in that the coating (112) is formed of a plurality of individual patterns (120) formed by coating lines (114) which are discrete from each other and arranged so as not to pass through one or more continuous coating lines (114) extending continuously from a first side (122a) of the sole surface (102) to an opposite second side (122b) of the sole surface (102) are formed.
Description
Die Erfindung betrifft eine Einlegesohle für Schuhe mit einem Grundmaterial, das eine schuhzugewandte Sohlenfläche und eine gegenüberliegende fußzugewandte Fußfläche aufweist, wobei auf der Sohlenfläche eine Beschichtung aufgebracht ist, die der Sohlenfläche der Einlegesohle eine gegenüber der unbeschichteten Sohlenfläche erhöhte Reibungskraft verleiht, wobei die Beschichtung aus einer Vielzahl von Beschichtungslinien besteht.The invention relates to an insole for shoes with a base material, which has a shoe facing sole surface and an opposite foot facing foot, wherein on the sole surface a coating is applied, which gives the sole surface of the insole a relation to the uncoated sole surface increased frictional force, wherein the coating of a Variety of coating lines exists.
Aus der
Des Weiteren ist es aus der
Eine weitere Schuheinlegesohle ist aus der
Ausgehend von diesen bekannten Beschichtungen ist es Aufgabe der vorliegenden Erfindung, eine Einlegesohle für Schuhe bereit zu stellen, die eine Antirutschwirkung in der gewünschten Weise bereitstellt, gleichzeitig eine ausreichende Biegesteifigkeit aufweist, bei gleichzeitig weitgehendem Erhalt der dem Grundmaterial der Einlegesohle zu eigenen und erwünschten Eigenschaften, wie beispielsweise Luftdurchlässigkeit und/oder Atmungsaktivität.Starting from these known coatings, it is an object of the present invention to provide an insole for shoes, which provides an anti-slip effect in the desired manner, at the same time has sufficient flexural rigidity, while largely preserving the basic material of the insole to own and desired properties, such as air permeability and / or breathability.
Die Aufgabe wird gelöst durch eine Einlegesohle für Schuhe mit den Merkmalen des Anspruchs 1, wobei die Beschichtung aus einer Vielzahl von durch Beschichtungslinien gebildeten Einzelmustern ausgebildet ist, die voneinander diskret sind und so angeordnet sind, dass sie nicht durch eine oder mehrere kontinuierlich von einer ersten Seite der Sohlenfläche zu einer gegenüberliegenden zweiten Seite der Sohlenfläche verlaufenden durchgehenden Beschichtungslinie bildbar sind.The object is achieved by an insole for shoes having the features of
Dabei sollen unter Einzelmustern solche Muster verstanden werden, die als offene oder geschlossene Muster ausgebildet sind. Offene Muster sind dabei solche Muster, bei denen der Linienanfang keinen Kontakt mit dem Linienende aufweist und geschlossene Muster solche, bei denen Anfang und Ende einer Linie nicht mehr ermittelt werden kann, da diese miteinander verbunden sind. Darüber hinaus sollen lediglich solche Muster Einzelmuster gemäß der Erfindung sein, die sich nicht auf einen einfachen Punkt oder eine einfache gerade Linie reduzieren lassen. Das heißt, ein Einzelmuster muss mehr als ein Punkt sein, wobei bei der Ausgestaltung eines Musters als Linie die Linie sich nicht ausschließlich als eine Gerade in nur einer Vektorrichtung erstrecken darf, sondern dieses Muster aus Linien wenigstens eine Krümmung und/oder wenigstens einen Knick aufweisen muss.In this case, individual patterns are to be understood as those patterns which are designed as open or closed patterns. Open patterns are those patterns in which the beginning of the line has no contact with the line end and closed patterns those in which the beginning and end of a line can no longer be determined because they are connected to each other. Moreover, only those patterns are to be single patterns according to the invention, which can not be reduced to a simple point or a simple straight line. That is, a single pattern must be more than one point, and when designing a pattern as a line, the line may not extend exclusively as a straight line in only one vector direction, but this pattern of lines will have at least one bend and / or at least one bend got to.
Hierdurch wird erreicht, dass die Beschichtungslinien nicht lediglich in einer Vorzugsrichtung verlaufen.This ensures that the coating lines do not extend only in a preferred direction.
Voneinander diskrete Einzelmuster sind solche, die entweder voneinander vollständig separiert sind, oder auch Einzelmuster, die sich jedoch auch tangieren, schneiden und/oder überlappen können. Das Einzelmuster ist trotz Tangierens, Schneidens oder Überlappens dabei dennoch aus seiner durch die durch die Beschichtungslinie vorgegebene Richtung umschriebene flächenhafte Erstreckung als Einzelmuster erkennbar. Unter Einzelmuster werden auch Mustergruppen verstanden, die insbesondere aus mindestens zwei, gleichen und/oder verschiedenen Musterelementen zusammengesetzt sind. Dabei werden insbesondere Anordnungen als Mustergruppen verstanden, bei denen zumindest zwei Musterelemente nebeneinander und in Kontakt stehend angeordnet sind, oder insbesondere auch Mustergruppen, bei denen ein Musterelement ein anderes Musterelement zumindest teilweise umgibt oder umläuft, wie beispielsweise konzentrische Anordnungen, insbesondere an Kreisen, Ovalen, Dreiecken oder sonstigen Polygonen oder ineinander liegende geometrische Figuren jeglicher Art, die sich in einem Punkt berühren.Discrete individual patterns are those which are either completely separated from each other, or else Individual patterns that can also be tangent, cut and / or overlap. In spite of being tangential, cutting or overlapping, the individual pattern can nevertheless be recognized as a single pattern from its areal extent defined by the direction predetermined by the coating line. Individual patterns are also understood to mean pattern groups, which in particular are composed of at least two, identical and / or different pattern elements. In particular, arrangements are understood as pattern groups, in which at least two pattern elements are arranged side by side and in contact, or in particular pattern groups, in which a pattern element at least partially surrounds or rotates another pattern element, such as concentric arrangements, in particular circles, ovals, Triangles or other polygons or nested geometric figures of any kind that touch each other in one point.
Es versteht sich, dass die aus Beschichtungslinien gebildeten Einzelmuster von einem unbeschichteten Bereich zumindest teilweise, vorzugsweise vollständig umgeben sind und/oder auch einen unbeschichteten Bereich umfassen, und diesen unbeschichteten Bereich zumindest teilweise, bevorzugt vollständig umlaufen.It is understood that the individual patterns formed from coating lines are at least partially, preferably completely surrounded by an uncoated area and / or also comprise an uncoated area, and at least partially, preferably completely, circumscribe this uncoated area.
Es versteht sich, dass die Beschichtung der Sohlenfläche der Einlegesohle ausschließlich aus Beschichtungslinien besteht und dass keine vollflächige Beschichtung der Sohlenfläche im Sinne eines kontinuierlichen flächendeckenden, ununterbrochenen Auftrags erfolgt. Die Einzelmuster werden durch linienförmige Beschichtungen erzielt, wobei unter einer Linie ein Element verstanden werden soll, bei dem eine Linienbreite von mindestens 0,2 mm ausgeführt ist und die Linie eine Länge aufweist, die mindestens das 5-fache der Linienbreite beträgt.It is understood that the coating of the sole surface of the insole consists exclusively of coating lines and that no full-surface coating of the sole surface in the sense of a continuous nationwide, uninterrupted order takes place. The individual patterns are achieved by linear coatings, where a line is to be understood as an element in which a line width of at least 0.2 mm is executed and the line has a length which is at least 5 times the line width.
Die linienförmigen Beschichtungen eines Einzelmusters können dabei grundsätzlich sowohl gerade Linien als auch gekrümmte Linien, sowie sich schneidende entsprechende Linien aufweisen. Die Linienführung kann grundsätzlich sowohl durchgehend als auch unterbrochen gestaltet sein, sofern die Linie als solche klar erkennbar bleibt. Das heißt, es sind auch gestrichelte, strichpunktierte oder gepunktete Beschichtungslinien im Sinne der vorliegenden Erfindung denkbar. Insbesondere dürfen die unterbrochenen Stellen nicht länger als das 10-fache, insbesondere nicht länger als das 8-fache, insbesondere nicht länger als das 6-fache, insbesondere nicht länger als das 4-fache der Linienbreite der dieser unterbrochenen Stelle benachbarten Linie sein.The linear coatings of a single pattern can basically have both straight lines and curved lines, as well as corresponding lines that intersect. The lines can basically be designed as both continuous and interrupted, provided that the line as such remains clearly recognizable. That is, it is also conceivable dashed, dash-dotted or dotted coating lines in the context of the present invention. In particular, the interrupted points must not be more than 10 times, especially not more than 8 times, in particular not more than 6 times, in particular not more than 4 times, the line width of the line adjacent to this interrupted point.
Unter Seiten der Sohlenfläche werden alle Ränder oder Kanten derselben verstanden.The sides of the sole surface are understood to mean all edges or edges thereof.
Nach einer besonders bevorzugten Ausführungsform kann vorgesehen sein, dass mindestens ein Einzelmuster so ausgebildet ist, dass für jede in der Sohlenfläche verlaufende Richtung bzw. bei einer gekrümmten Sohle für jede Tangentialrichtung an die Sohle ein Abschnitt dieses Einzelmusters senkrecht hierzu verläuft. Das bedeutet, dass für jede mögliche Richtung in der Sohlenfläche, sofern die Sohle flach liegt, ein Abschnitt bzw. Bereich in dem Einzelmuster existiert, der senkrecht hierzu verläuft. Durch die Gestaltung der linienförmigen Beschichtung mit einer Krümmung kann eine bessere Verteilung der Kräfte in verschiedene Richtungen erreicht werden. Auf diese Weise kann eine besonders gute Rutschhemmung erreicht werden. Nach einer weiter bevorzugten Ausführungsform kann der Abschnitt punktförmig sein, wobei dann eine in diesem Punkt angelegte imaginäre Tangente immer senkrecht zu einer Richtung in der Schuhsohle verläuft.According to a particularly preferred embodiment it can be provided that at least one individual pattern is formed so that for each direction extending in the sole surface or a curved sole for each tangential to the sole a portion of this individual pattern is perpendicular thereto. That is, for any possible direction in the sole surface, if the sole is flat, there exists a portion in the single pattern that is perpendicular thereto. By designing the line-shaped coating with a curvature, a better distribution of the forces in different directions can be achieved. In this way, a particularly good slip resistance can be achieved. According to a further preferred embodiment, the Section point-like, in which case an imaginary tangent applied at this point always runs perpendicular to a direction in the shoe sole.
Besonders bevorzugt weisen mindestens 20%, insbesondere mindestens 40%, insbesondere mindestens 50%, insbesondere mindestens 60%, insbesondere mindestens 80%, insbesondere 100% der Einzelmuster mindestens einen Abschnitt auf, der zu einer beliebigen Richtung der Sohlenfläche senkrecht verläuft. Insbesondere ist bei mindestens 20%, insbesondere mindestens 40%, insbesondere mindestens 50%, insbesondere mindestens 60%, insbesondere mindestens 80%, insbesondere 100% der Einzelmuster dieser mindestens eine Abschnitt punktförmig ausgebildet und eine hieran angelegte imaginäre Tangente verläuft senkrecht zu einer beliebigen Richtung in der Sohlenfläche.Particularly preferably, at least 20%, in particular at least 40%, in particular at least 50%, in particular at least 60%, in particular at least 80%, in particular 100% of the individual patterns have at least one section which runs perpendicular to any direction of the sole surface. In particular, at least 20%, in particular at least 40%, in particular at least 50%, in particular at least 60%, in particular at least 80%, in particular 100% of the individual patterns, this at least one section is punctiform and an imaginary tangent applied thereto runs perpendicular to an arbitrary direction in the sole area.
Die auf der Sohlenseite vorgesehenen Einzelmuster können gleiche oder verschiedene geometrische Formen aufweisen und insbesondere in gleichen und/oder verschiedenen Abmessungen/Dimensionen ausgestaltet sein.The individual patterns provided on the sole side may have the same or different geometric shapes and in particular be configured in the same and / or different dimensions / dimensions.
Darüber hinaus kann vorzugsweise wenigstens ein Einzelmuster als Mustergruppe gebildet sein, die mindestens zwei aus Beschichtungslinien gebildete Musterelemente umfasst. Besondere bevorzugt sind mindestens 20%, insbesondere mindestens 40%, insbesondere mindestens 50%, insbesondere mindestens 60%, insbesondere mindestens 80% der Einzelmuster aus einer Mustergruppe gebildet. Weiter insbesondere ist jedes Einzelmuster aus einer Mehrzahl von Musterelementen aufgebaut. Die Mustergruppe kann beispielsweise aus inneren und äußeren Musterelementen aufgebaut sein und/oder sich zu einem Gesamtmuster zusammenfügenden Musterelementen oder weiteren Musterelementen, die z.B. nebeneinander und sich dabei berührend angeordnet sind, aufgebaut sein. Besonders bevorzugt kann vorgesehen sein, dass ein Musterelement eines Einzelmusters ein zweites Musterelement zumindest bereichsweise, insbesondere jedoch vollständig umläuft. Dabei soll unter Umlaufen auch verstanden werden, dass die Linien zumindest bereichsweise einander berühren oder miteinander gleichlaufend ausgebildet sind. Solche Muster lassen sich besonders ergonomisch anordnen.In addition, preferably at least one single pattern may be formed as a pattern group comprising at least two pattern elements formed from coating lines. Particular preference is given to forming at least 20%, in particular at least 40%, in particular at least 50%, in particular at least 60%, in particular at least 80%, of the individual patterns from a sample group. In particular, each individual pattern is constructed from a plurality of pattern elements. The pattern group may be constructed, for example, from inner and outer pattern elements and / or to a total pattern of merging pattern elements or other pattern elements, for example, side by side and thereby are arranged touching, be constructed. Particularly preferably, it may be provided that a pattern element of a single pattern at least partially surrounds a second pattern element, but in particular completely. It should also be understood that the lines are at least partially touching one another or running in parallel with each other. Such patterns can be arranged particularly ergonomically.
Dabei kann insbesondere vorgesehen sein, dass die Einzelmuster von einem unbeschichteten äußeren Bereich umgeben sind, der ein von der geometrischen Form der Einzelmuster verschiedene geometrische Form aufweist. Hierdurch soll insbesondere auch erreicht werden, dass anders, als bei beispielsweise Gittermustern und Streifenmustern, keine Vorzugsrichtungen bestehen, sondern eine Rutschhemmung allseitig gleich gut bereit gestellt werden kann.It can be provided in particular that the individual patterns are surrounded by an uncoated outer region, which has a different geometric shape from the geometric shape of the individual pattern. This is to be achieved in particular that, unlike, for example, grid patterns and stripe patterns, there are no preferred directions, but a slip resistance can be provided on all sides equally well.
Besonders bevorzugt ist, dass wenigstens ein Einzelmuster allseitig durch einen unbeschichteten äußeren Bereich umschlossen ist. Besonders bevorzugt ist, dass eine Vielzahl von Einzelmustern je Einlegesohle, die auf der Sohlenfläche aufgebracht sind, allseitig von einem unbeschichteten äußeren Bereich umgeben ist. Insbesondere bevorzugt sind alle Einzelmuster je Einlegesohle von einem unbeschichteten äußeren Bereich umgeben. Auf diese Weise kann erreicht werden, dass einerseits durch die linienförmigen, anstelle von bisher bekannten punktförmigen Beschichtungen, die Biegesteifigkeit einer Einlegesohle erhöht werden kann, wodurch ein leichteres Einlegen in die Sohle erreicht wird, aber auch eine höhere Stabilität der Einlegesohle bei einer Belastung erreicht wird, beispielsweise in einem Sportschuh, wie sie die Einlegesohle durch die Rutschbewegung des Fußes im Schuh aufnehmen muss. Auf der anderen Seite wird gleichzeitig erreicht, dass im Gegensatz zu einem vollflächigen Beschichtungsauftrag die erwünschten Eigenschaften des Grundmaterials der Einlegesohle, wie beispielsweise Luftdurchlässigkeit und/oder Atmungsaktivität der Einlegesohle hoch gehalten werden könnenIt is particularly preferred that at least one individual pattern is enclosed on all sides by an uncoated outer region. It is particularly preferred that a plurality of individual patterns per insole, which are applied to the sole surface, is surrounded on all sides by an uncoated outer region. In particular, all individual patterns per insole are preferably surrounded by an uncoated outer region. In this way it can be achieved that on the one hand by the linear, instead of previously known punctiform coatings, the flexural rigidity of an insole can be increased, whereby an easier insertion into the sole is achieved, but also a higher stability of the insole is achieved under load For example, in a sports shoe, as the insole by the sliding of the foot in the shoe must record. On the other hand, at the same time it is achieved that, in contrast to a full-surface coating application, the desired properties of the base material of the insole, such as air permeability and / or breathability of the insole can be kept high
Derartige Sohlen mit einer linienförmigen Beschichtung in Form von Einzelmustern stellen einen guten Kompromiss im Hinblick auf Biegesteifigkeit, Luftdurchlässigkeit und/oder Atmungsaktivität bei gleichzeitig guter ergonomischer Anpassung an den Fuß eines Trägers bzw. an die Oberflächenkonturen des Schuhs dar.Such soles with a linear coating in the form of individual patterns represent a good compromise with regard to bending stiffness, air permeability and / or breathability with simultaneously good ergonomic adaptation to the foot of a wearer or to the surface contours of the shoe.
Je nach gewünschtem Muster und je nach gewünschter Einstellung der Antirutscheigenschaften kann vorgesehen sein, die Vielzahl an Einzelmustern in einem regelmäßigen Rapport aufzubringen oder nicht regelmäßig anzuordnen.Depending on the desired pattern and depending on the desired setting of the anti-slip properties, it may be provided to apply the plurality of individual patterns in a regular repeat or not to arrange them regularly.
Dabei ist insbesondere vorgesehen, dass die Vielzahl an Einzelmustern die Sohlenfläche im Wesentlichen in ihrer gesamten Erstreckung erfassen, also nicht nur spezielle Bereiche wie Ferse und/oder Fußballenbereich. Es ist daher bevorzugt vorgesehen, dass die Einzelmuster sich über die gesamte Sohlenfläche erstrecken, wobei je nach vorgesehenem Muster einzelne Bereiche der Sohlenfläche, wie beispielsweise der Ballenbereich und/oder Fersenbereich, eine erhöhte Musterdichte aufweisen können und andere Bereiche, wie beispielsweise der Fußgewölbebereich eine geringere Musterdichte aufweisen kann. Es ist auch denkbar, je nach Bereich der Sohlenfläche, verschiedene Einzelmuster auszuwählen bzw. in der Mustergröße zu variieren. Darüber hinaus ist es auch denkbar, beispielsweise im Bereich des Fußballens und/oder der Ferse, die Muster so auszugestalten, dass die Muster einander schneiden und/oder überlappen und/oder sich tangieren, wohingegen im übrigen Bereich die Muster einen geringeren Grad an Überlappung bzw. weniger Schnittpunkte oder weniger Berührpunkte mit anderen Mustern aufweisen und im Grenzfall sogar in den übrigen Bereichen voneinander separat angeordnet sind.In this case, it is provided in particular that the multiplicity of individual patterns cover the sole surface essentially in its entire extent, that is to say not only special areas such as the heel and / or foot ball area. It is therefore preferred that the individual patterns extend over the entire sole surface, wherein depending on the intended pattern individual areas of the sole surface, such as the ball area and / or heel area, may have an increased pattern density and other areas, such as the arch area a smaller Pattern density may have. It is also conceivable, depending on the area of the sole area, to select different individual patterns or to vary them in the pattern size. Moreover, it is also conceivable, for example in the field of football and / or the heel, to design the patterns in such a way that the patterns intersect and / or overlap and / or tangent, whereas in the remaining area the patterns have a lower degree of overlap or fewer intersections or fewer points of contact with other patterns and are arranged separately in the borderline even in the other areas.
Besonders bevorzugt kann die Sohlenfläche einen Bedeckungsgrad durch die Beschichtungslinien von mindestens 6%, insbesondere mindestens 8%, insbesondere mindestens 10%, weiter insbesondere mindestens 20% und insbesondere von höchstens 50%, weiter insbesondere höchstens 40% und weiter insbesondere höchstens 30% aufweisen. Auf diese Weise wird dennoch eine gute Biegesteifigkeit der Einlegesohle erreicht und erwünschte Eigenschaften des Grundmaterials, wie z.B. Luftdurchlässigkeit, Atmungsaktivität nicht zu stark geändert, sondern erhalten.Particularly preferably, the sole surface may have a degree of coverage by the coating lines of at least 6%, in particular at least 8%, in particular at least 10%, more particularly at least 20% and in particular at most 50%, more particularly at most 40% and further in particular at most 30%. In this way, nevertheless, a good flexural rigidity of the insole is achieved and desirable properties of the base material, such as e.g. Air permeability, breathability not changed too much, but preserved.
Betrachtet man die Einzelmuster in Summe so weisen diese bevorzugt einen Flächenanteil von mindestens 20%, insbesondere mindestens 30% und weiter insbesondere mindestens 40% und insbesondere höchstens 80%, weiter insbesondere höchstens 70% und weiter insbesondere höchstens 60% der Sohlenfläche auf. Als Fläche eines Einzelmusters wird hierbei der durch die äußeren Beschichtungslinien (inklusive der Beschichtungslinien) eingeschlossene Bereich verstanden, somit sind auch die inneren unbeschichteten Bereiche des Einzelmusters oder in der Ausführung als Mustergruppe der dazugehörigen Flächen der einzelnen Musterelemente mitberücksichtigt. Über die durch die Einzelmuster abgedeckten Flächen können ausreichende Antirutscheigenschaften bei dennoch gewünschter hinreichender Biegesteifigkeit und unter Erhalt der dem Grundmaterial innewohnenden Eigenschaften, wie beispielsweise Luftdurchlässigkeit, Atmungsaktivität erreicht werden.If the individual samples are considered in total, they preferably have an area fraction of at least 20%, in particular at least 30% and more particularly at least 40% and in particular at most 80%, more particularly at most 70% and more particularly at most 60% of the sole surface. The area of a single pattern is here understood to be the area enclosed by the outer coating lines (including the coating lines), thus also the inner uncoated areas of the single pattern or in the embodiment as a pattern group of the associated areas of the individual pattern elements are taken into account. By means of the surfaces covered by the individual patterns, sufficient anti-slip properties can be achieved while still providing sufficient bending stiffness and maintaining the properties inherent in the base material, such as, for example, air permeability and breathability.
Ein Einzelmuster weist vorzugsweise eine Fläche mit einem Erstreckungsabstand zwischen den äußeren Beschichtungslinien von wenigstens 0,3 cm, vorzugsweise wenigstens 0,5 cm , weiter vorzugsweise wenigstens 0,7 cm, weiter vorzugsweise wenigstens 1,0 cm, weiter vorzugsweise wenigstens 1,5 cm, weiter vorzugsweise wenigstens 2 cm, weiter vorzugsweise höchstens 5 cm, weiter vorzugsweise höchstens 4 cm, weiter vorzugsweise höchstens 3 cm auf. Als Erstreckungsabstand, der z. B. ein Durchmesser sein kann, wird dabei die Distanz zwischen den jeweils distal am weitesten voneinander entfernt gelegenen Beschichtungslinien verstanden, die ein Einzelmuster beschreiben bzw. eingrenzen. Dabei wird an der äußeren Kante der Beschichtungslinie, also einschließlich deren Linienbreite gemessen.A single pattern preferably has an area with an extension distance between the outer coating lines of at least 0.3 cm, preferably at least 0.5 cm, more preferably at least 0.7 cm, more preferably at least 1.0 cm, more preferably at least 1.5 cm , more preferably at least 2 cm, more preferably at most 5 cm, more preferably at most 4 cm, further preferably at most 3 cm. As extension distance, the z. B. may be a diameter, it is understood the distance between each of the distal most distant coating lines that describe or limit a single pattern. It is measured at the outer edge of the coating line, ie including the line width.
Ein Einzelmuster weist, inklusive der umschreibenden Beschichtungslinien, vorzugsweise eine Fläche von mindestens 0,2 cm2, weiter vorzugsweise von mindestens 0,5 cm2, weiter vorzugsweise von mindestens 1,0 cm2, weiter vorzugsweise von mindestens 1,5 cm2, weiter vorzugsweise von höchstens 10,0 cm2, weiter vorzugsweise von höchstens 8,0 cm2, weiter vorzugsweise von höchstens 6,0 cm2 auf.A single sample, including the circumscribing coating lines, preferably has an area of at least 0.2 cm 2 , more preferably of at least 0.5 cm 2 , more preferably of at least 1.0 cm 2 , more preferably of at least 1.5 cm 2 , more preferably at most 10.0 cm 2 , more preferably at most 8.0 cm 2 , more preferably at most 6.0 cm 2 .
Die Einzelmuster können hinsichtlich ihrer geometrischen Form und/oder ihrer Abmessungen verschieden oder gleich ausgebildet sein. Hierbei können die verschiedenen Eigenschaften der Einlegesohle wie Bedeckungsgrad, Antirutscheigenschaften, Biegesteifigkeit, Luftdurchlässigkeit, Atmungsaktivität Berücksichtigung finden und durch die Einstellung der Einzelmuster realisiert sein.The individual patterns may be different or the same in terms of their geometric shape and / or their dimensions. Here, the various properties of the insole such as coverage, anti-slip properties, bending stiffness, air permeability, breathability can be taken into account and realized by adjusting the individual patterns.
Besonders bevorzugt sind Einzelmuster mit gekrümmten oder abgerundeten Bereichen, da diese eine bessere ergonomische Anpassung ermöglichen.Particular preference is given to single patterns with curved or rounded areas, since these allow better ergonomic adaptation.
Die Linienbreite kann mindestens 0,2 mm, insbesondere mindestens 0,4 mm, insbesondere mindestens 0,5 mm und weiter insbesondere mindestens 0,6 mm betragen. Dabei sollte die Linienbreite vorzugsweise höchstens 2 mm vorzugsweise, weiter insbesondere höchstens 1,6 mm, weiter insbesondere höchstens 1,2 mm, weiter insbesondere höchstens 1,0 mm betragen. Die Linienlänge im Verhältnis zur Linienbreite soll mindestens das 5-fache, vorzugsweise mindestens das 6-fache, weiter bevorzugt mindestens das 8-fache und weiter bevorzugt mindestens das 10-fache der Linienbreite ausmachen.The line width may be at least 0.2 mm, in particular at least 0.4 mm, in particular at least 0.5 mm and more particularly at least 0.6 mm. In this case, the line width should preferably be at most 2 mm, more preferably at most 1.6 mm, more preferably at most 1.2 mm, more preferably at most 1.0 mm. The line length in relation to the line width should be at least 5 times, preferably at least 6 times, more preferably at least 8 times and more preferably at least 10 times the line width.
Die Höhe der Beschichtungslinien soll mindestens 0,1 mm, insbesondere mindestens 0,2 mm betragen. Dabei soll die Höhe der Beschichtungslinie höchstens 0,8 mm, weiter insbesondere höchstens 0,6 mm und weiter insbesondere höchstens 0,4 mm sein. Die Messung der Höhe kann mit einem Mikroskop mit einer entsprechenden Vergrößerung ermittelt werden, und zwar dabei als die Differenz zwischen einer gemittelten oberen Kante des Grundmaterials und der oberen Kante der Beschichtungslinie.The height of the coating lines should be at least 0.1 mm, in particular at least 0.2 mm. The height of the coating line should be at most 0.8 mm, more particularly at most 0.6 mm and more particularly at most 0.4 mm. The measurement of the height can be determined with a microscope with a corresponding magnification, as the difference between an averaged upper edge of the base material and the upper edge of the coating line.
Mit diesen bevorzugten Höhen der Beschichtungslinien werden vorteilhaft unangenehm anfühlbare haptische Effekte am Fuß vermieden.With these preferred heights of the coating lines, it is advantageous to avoid unpleasantly sensitive haptic effects on the foot.
Das Flächengewicht der Beschichtung kann mindestens 5 g/m2, insbesondere mindestens 10 g/m2, weiter insbesondere mindestens 15 g/m2 und weiter insbesondere mindestens 20 g/m2 betragen. Nach oben hin soll das Flächengewicht vorzugsweise auf 50 g/m2 und weiter insbesondere auf höchstens 30 g/m2 begrenzt sein.The basis weight of the coating may be at least 5 g / m 2 , in particular at least 10 g / m 2 , more particularly at least 15 g / m 2 and more particularly at least 20 g / m 2 . At the top, the basis weight should preferably limited to 50 g / m 2 and more particularly to at most 30 g / m 2 .
Die Beschichtung ist insbesondere polymerbasiert und insbesondere auf Basis eines Polymers entnommen aus der Gruppe umfassend PE (Polyethylen), PP (Polypropylen), APAO (amorphe Polyalphaolefine), EVA (Ethylenvinylacetat), EVAC (Ethylenvinylacetat-Copolymere), PA (Polyamide), TPE-O (Thermoplastische Elastomere auf Olefinbasis), TPE-V (Vernetzte thermoplastische Elastomere auf Olefinbasis), TPE-E (Thermoplastische Copolyester), TPE-U (Thermoplastische Elastomere auf Urethanbasis), TPE-A (Thermoplastische Copolyamide, z.B. PEBA), TPE-S (Thermoplastische Styrol-Blockcopolymere), wie z.B. HSBC (hydrierte Styrol-Blockcopolymere), SEBS (Styrol-Ethylen-Butadien-Styrol-Polymere), SBS (Styrol-Butadien-Styrol), SEPS (Styrol-Ethylen-Propylen-Styrol) oder einer Kombination aus einer oder mehreren der genannten Polymere hiervon.The coating is in particular polymer-based and in particular based on a polymer taken from the group comprising PE (polyethylene), PP (polypropylene), APAO (amorphous polyalphaolefins), EVA (ethylene-vinyl acetate), EVAC (ethylene-vinyl acetate copolymers), PA (polyamides), TPE -O (olefin-based thermoplastic elastomers), TPE-V (olefin-based crosslinked thermoplastic elastomers), TPE-E (thermoplastic copolyesters), TPE-U (urethane-based thermoplastic elastomers), TPE-A (thermoplastic copolyamides, eg PEBA), TPE -S (thermoplastic styrene block copolymers), such as HSBC (hydrogenated styrene block copolymers), SEBS (styrene-ethylene-butadiene-styrene polymers), SBS (styrene-butadiene-styrene), SEPS (styrene-ethylene-propylene-styrene) or a combination of one or more of said polymers hereof.
Als Materialien für die Beschichtung kommen bevorzugt Materialien mit einer Shore A-Härte von mindestens 30, insbesondere von mindestens 40, insbesondere von mindestens 50, weiter insbesondere mindestens 60 und insbesondere von höchstens 90, weiter insbesondere von höchstens 80, weiter insbesondere höchstens 70 in Frage. Die Shore A-Härte stellt einen Werkstoffkennwert für Elastomere und Kunststoffe dar. Die Shore-A-Härte wird hierbei nach folgender Methode bestimmt.Preferred materials for the coating are materials having a Shore A hardness of at least 30, in particular of at least 40, in particular of at least 50, more particularly at least 60 and in particular not more than 90, more particularly not more than 80, more particularly not more than 70 , The Shore A hardness represents a material characteristic value for elastomers and plastics. The Shore A hardness is determined here in accordance with the following method.
Die Shore-A-Härte ist ein Maß für den Widerstand eines Materials gegen das Eindringen eines Körpers von bestimmter Form und unter einer definierten Federkraft. Dabei gibt bei den Shore-Härte-Einheiten der Wert 0 die kleinste und der Wert 100 die größte Härte an.The Shore A hardness is a measure of the resistance of a material to the penetration of a body of a certain shape and under a defined spring force. Thereby The Shore hardness units are given the
Die Messung erfolgt in Anlehnung an die Normen DIN 53505:2000-08 und ISO 868:2003(E). Es wird dabei ein Härteprüfgerät nach Shore A eingesetzt. Ein solches Härteprüfgerät nach Shore A, das schematisch in
Die Prüfung soll an mechanisch nicht vorbeanspruchten Probekörpern durchgeführt werden. Für die Prüfung soll der Prüfkörper bereits 16 Stunden auspolymerisiert bzw. ausvulkanisiert sein. Die Prüfung wird bei Standardbedingungen bei 23 ± 2° C und 50 ± 2% Luftfeuchtigkeit durchgeführt. Die Probenkörper und die Geräte sind mindestens 1 Stunde lang entsprechend konditioniert.The test should be carried out on specimens not mechanically pre-stressed. For the test, the test piece should already be fully polymerized or vulcanized for 16 hours. The test is carried out under standard conditions at 23 ± 2 ° C and 50 ± 2% humidity. The specimens and equipment are conditioned for at least 1 hour.
Die Probenkörper brauchen Abmessungen, die Messungen wenigstens 12 mm von jeder Kante entfernt erlauben, und dabei über eine ausreichend planparallele Auflagefläche verfügen, damit der Druckfuß den Probenkörper auf einer Fläche im Radius von mindestens 6 mm um die Spitze des Eindruckkörpers berühren kann. Es sind Probenkörper mit einer Materialstärke von mindestens 4 mm erforderlich. Bei geringen Dicken können die Probenkörper aus mehreren dünneren Schichten zusammengesetzt sein. An jedem Probenkörper wird an mindestens 5 verschiedenen Stellen gemessen, wobei der Abstand von den Kanten des Probenkörpers mindestens 12 mm beträgt. Der Abstand zwischen den Messstellen soll mindestens 6 mm betragen. Das Andrückgewicht des Eindruckkörpers beträgt 1 kg.The specimens need dimensions that allow for measurements at least 12 mm from each edge, and have a sufficiently plane-parallel bearing surface so that the pressure pad can contact the specimen on an area at least 6 mm in radius around the tip of the indenter. Specimens with a material thickness of at least 4 mm are required. at small thicknesses, the specimens may be composed of several thinner layers. Each specimen is measured at least 5 different points, with a distance of at least 12 mm from the edges of the specimen. The distance between the measuring points should be at least 6 mm. The pressing weight of the indenter is 1 kg.
Die Messzeit beträgt 3 Sekunden, d.h. die Härte wird 3 Sekunden nach der Berührung der Auflagefläche des Prüfgerätes und des Probekörpers abgelesen.The measuring time is 3 seconds, i. the hardness is read 3 seconds after touching the bearing surface of the tester and the specimen.
Das Aufbringen der Beschichtungslinien erfolgt dabei vorzugsweise mittels einer Walze, die eine dem Muster (Summe der Einzelmuster) entsprechende Gravur aufweist.The coating lines are preferably applied by means of a roller which has an engraving corresponding to the pattern (sum of the individual patterns).
Die Sohlenseite mit der Beschichtung kann einen dynamischen Reibungskoeffizienten gemessen in Anlehnung an ASTM D 1894-01 von mindestens 0,6, insbesondere mindestens 0,8 und weiter insbesondere mindestens 1,0 aufweisen, wobei Höchstwerte von höchstens 2,0, weiter insbesondere höchstens 1,5 und weiter insbesondere höchstens 1,2 erreicht werden sollen. Hierdurch werden ausreichende Reibungskräfte erzeugt, auf der anderen Seite jedoch eine leichte Entfernbarkeit der Einlegesohle sichergestellt.The sole side with the coating can have a dynamic coefficient of friction measured on the basis of ASTM D 1894-01 of at least 0.6, in particular at least 0.8 and more particularly at least 1.0, with maximum values of at most 2.0, more particularly at most 1 , 5 and in particular more than 1.2 are to be achieved. As a result, sufficient frictional forces are generated, but on the other hand ensures easy removability of the insole.
Vorliegend soll das Rutschverhalten von erfindungsgemäßen Einlegesohlen mit Beschichtung ermittelt werden. Hierbei wird die mit der Beschichtung versehene Sohlenfläche der Einlegesohle gegenüber einer standardisierten Oberfläche gezogen. Die hierbei auftretende Gleitreibungskraft A soll gemessen und hieraus dann der dynamische Gleitreibungskoeffizient ermittelt werden. Die Prüfmethode ist angelehnt an die ASTM D 1894-01, zur Bestimmung des Reibungsverhaltens von Kunststoff-Folien.In the present case, the sliding behavior of insoles according to the invention with coating should be determined. Here, the provided with the coating sole surface of the insole is pulled against a standardized surface. The occurring sliding friction force A should be measured and then the dynamic Sliding friction coefficient can be determined. The test method is based on ASTM D 1894-01, for the determination of the friction behavior of plastic films.
Die Prüfkörper müssen mindestens 2 Stunden im Normklima bei 23° C ± 2°C und 50% ± 2% Luftfeuchtigkeit konditioniert sein. Die Proben dürfen nicht geknickt, gefaltet oder zerkratzt sein; sonstige Veränderungen und Verunreinigungen sind zu vermeiden. Dasselbe gilt für die Prüfplatte aus Stahl. Das Prüfverfahren ist ebenso unter Normbedingungen (23°C ± 2°C, 50 % ± 2%) durchzuführen.The specimens shall be conditioned for a minimum of 2 hours in a standard atmosphere at 23 ° C ± 2 ° C and 50% ± 2% humidity. The samples must not be kinked, folded or scratched; other changes and contamination are to be avoided. The same applies to the steel test plate. The test method shall also be carried out under standard conditions (23 ° C ± 2 ° C, 50% ± 2%).
Aus der Einlegesohle mit Beschichtung oder aus einer entsprechenden Rollenware wird ein Probenkörper einer Abmessung von 50 x 50 mm ausgestanzt und faltenfrei an einem Reibklotz befestigt. Bei der Rollenware handelt es sich aber um exakt dasjenige Material, aus dem die erfindungsmäßen Einlegesohlen ausgestanzt werden.From the insole with coating or from a corresponding roll product, a sample body of a dimension of 50 x 50 mm is punched out and attached without creases to a friction pad. However, the roll goods are exactly the material from which the insoles according to the invention are punched out.
Der Reibklotz weist eine Grundfläche von 63 mm x 63 mm Kantenlänge, also eine Kontaktgrundfläche von 40 cm2 und eine Masse von 200 g ± 5g auf. Er wird über einen Faden (ohne Eigendehnung)am Kraftaufnehmer einer Zugprüfmaschine nach DIN 51 221 Klasse 1 befestigt. Eine solche Zugprüfmaschine ist das Prüfgerät Zwick Roell Typ Z010 von der Firma Zwick GmbH&Co.KG, 89079 Ulm, Deutschland.The friction block has a base area of 63 mm x 63 mm edge length, so a contact base area of 40 cm 2 and a mass of 200 g ± 5g. It is fastened by a thread (without self-expansion) to the load cell of a tensile testing machine according to DIN 51 221
Das Zusatzgerät bestehend aus dem Probentisch und Reibklotz nach DIN EN ISO 8295:2014 wird ebenfalls von der Firma Zwick angeboten. Der Reibklotz mit dem Probenkörper wird auf einen definierten Werkstoff, eine glatt polierte Stahlplatte (DIN EN 1939: 2003-12) vorsichtig aufgelegt. 15 Sekunden nach dem Auflegen des Reibklotzes wird der Versuch gestartet. Die Prüfgeschwindigkeit beträgt 150 mm/min, sowohl für den eigentlichen Messweg von 130 mm, als auch für den Vor- und Nachmessweg von jeweils 10 mm. Für die Ermittlung des dynamischen Gleitreibungskoeffizienten p wird nur der Kraftverlauf des Messwegs von 130 mm herangezogen. Der Test wird für wenigstens fünf Prüfkörper durchgeführt. Es wird ein Mittelwert x und die Standardabweichung s auf zwei Nachkommastellen gerundet angegeben. Der dynamische Gleitreibungskoeffizient ergibt sich aus dem Quotienten der so ermittelten Gleitreibungskraft A ausgedrückt in Gramm (g) durch die durch den Reibklotz ausgeübte Kraft von 200 g.The additional device consisting of the sample table and friction block according to DIN EN ISO 8295: 2014 is also offered by Zwick. The friction pad with the specimen is carefully placed on a defined material, a smooth polished steel plate (DIN EN 1939: 2003-12). 15 seconds after placing the friction pad, the experiment is started. The test speed is 150 mm / min, both for the actual measuring path of 130 mm, as well for the pre- and Nachmessweg of 10 mm. For determining the dynamic sliding friction coefficient p, only the force curve of the measuring path of 130 mm is used. The test is carried out for at least five specimens. An average value x and the standard deviation s are rounded to two decimal places. The dynamic sliding friction coefficient is given by the quotient of the thus determined sliding friction force A expressed in grams (g) by the force exerted by the friction pad of 200 g.
Darüber hinaus soll die Einlegesohle eine bevorzugte Biegesteifigkeit von mindestens 500 mN, insbesondere mindestens 600 mN, weiter insbesondere mindestens 700 mN, weiter insbesondere höchstens 3000 mN, weiter insbesondere höchstens 2000 mN aufweisen.In addition, the insole should have a preferred bending stiffness of at least 500 mN, in particular at least 600 mN, more particularly at least 700 mN, further in particular at most 3000 mN, more particularly at most 2000 mN.
Die Einlegesohle kann gegenüber einer Einlegesohle ohne Beschichtungslinien auf der Sohlenfläche eine erhöhte Biegesteifigkeit aufweisen, wobei insbesondere die Biegesteifigkeit um 5%, weiter insbesondere um 10%, weiter insbesondere um 15% erhöht ist. Die Biegesteifigkeit soll jedoch vorzugsweise um höchstens 50%, weiter insbesondere um höchstens 40% und weiter insbesondere um höchstens 30% durch die Beschichtungslinien der Einzelmuster erhöht werden. Die Biegesteifigkeit wird hierbei mit nachfolgendem Test bestimmt:The insole may have an increased flexural rigidity compared to an insole without coating lines on the sole surface, wherein in particular the flexural rigidity is increased by 5%, more particularly by 10%, further in particular by 15%. However, the bending stiffness should preferably be increased by at most 50%, more particularly by at most 40%, and more particularly by at most 30% by the coating lines of the individual patterns. The bending stiffness is determined here by the following test:
Zur Ermittlung der Rückstellkraft, also der Eigenstabilität von erfindungsgemäßen Einlegesohlen, wird die Biegesteifigkeit von jeweils 10 Mustern unter Verwendung eines kommerziell erhältlichen Geräts zur Ermittlung der Biegesteifigkeit bestimmt (bei 23 °C ± 2°C und 50% ± 2 % Luftfeuchtigkeit). Für die aktuelle Messung wurde der Gerätetyp 58963.013 der Firma Karl Frank GmbH, Weinheim-Birkenau, DE, verwendet. Es kann auch jedes ähnliche Gerät verwendet werden, wobei die Grundeinstellung des Geräts (Biegelänge, Kraftarm, Biegewinkel, Winkeldrehgeschwindigkeit) und auch der definierte Probenkörper beachtet werden müssen. Es wurden jeweils 10 Muster der Einlegesohle vermessen. Es wurde mit einem Biegewinkel von 30° und einer Biegelänge von 10 mm gearbeitet. Der Überhang für die Platzierung des Messfühlers beträgt 6 mm innerhalb des Randbereichs des Probekörpers 37 (siehe
Das für die Biegesteifigkeitsmessung eingesetzte Gerät 30 umfasst dabei einen Probenhalter 32 mit einer Einspannklemme 34 und einer Rändelschraube 36, die ein Zusammentreffen der beiden Einspannplatten 34a und 34b zur Befestigung des Probenkörpers 37 ermöglicht. Die Einspannklemme 34 ist dabei auf einer scheibenförmigen Platte 38 aufgebracht, wobei diese Platte 38 durch geräteinterne Funktionssteuerung bei der Durchführung der Messung eine Drehung im Uhrzeigersinn gemäß des eingegebenen Biegewinkels (hier 30°) durchführt. Die Drehwinkelgeschwindigkeit der Platte 38 beträgt 6°/sec. Die Wahl des Biegewinkels kann dabei an einem weiteren Vorrichtungsbereich 40 festgelegt und mittels einer Rändelschraube 42 justiert werden. Die eigentliche Messvorrichtung 44 umfasst eine Messzelle 46. Hierin werden die durch einen Messfühler 48 aufgenommenen Kräfte in einen Kraftmesswert umgewandelt und letztlich als Messwert auf einem Display 50 angezeigt. Der Messfühler 48 ist bei diesem Gerät in Form einer vertikal stehenden Schneide ausgeführt. Die schon erwähnte Biegelänge L (also die Länge des Kraftarms) ist dabei durch Justierung der Messvorrichtung 44 über eine Rändelschraube 52 in Richtung des Pfeils 53 einstellbar. Die Biegelänge L ist dabei zu verstehen als die Länge des Bereichs, der sich zwischen Messfühler und nächstliegender Kante der Einspannklemme 34 befindet und den Kraftarm bildet; die Biegelänge L ist 10 mm.The
Für die Versuchsdurchführung wird der viereckige Probenkörper 37 (siehe
Die Einlegesohle kann dabei bezüglich des Grundmaterials ein- oder mehrlagig ausgebildet sein und insbesondere ein Vliesmaterial umfassen. Die Vliesmaterialien umfassen vorzugsweise natürliche cellulosebasierte Fasern oder synthetische Fasern oder Mischungen daraus.The insole may be formed with respect to the base material one or more layers and in particular a Nonwoven material include. The nonwoven materials preferably comprise natural cellulose-based fibers or synthetic fibers or mixtures thereof.
Das Grundmaterial weist, insbesondere auch bei mehrlagigem Grundmaterial, eine Basislage mit einem Flächengewicht vorzugsweise von mindestens 180 g/m2, weiter vorzugsweise von mindestens 200 g/m2, weiter vorzugsweise von mindestens 220 g/m2, weiter vorzugsweise von höchstens 300 g/m2, weiter vorzugsweise von höchstens 280 g/m2, weiter vorzugsweise von höchstens 250 g/m2 auf.The base material has, especially in multilayer base material, a base layer with a basis weight preferably of at least 180 g / m 2 , more preferably of at least 200 g / m 2 , more preferably of at least 220 g / m 2 , more preferably of at most 300 g / m 2 , more preferably at most 280 g / m 2 , more preferably at most 250 g / m 2 .
Vorzugsweise beträgt die Dicke der Einlegesohle, dabei einschließlich der Beschichtung auf der Sohlenfläche 1 - 3 mm, vorzugsweise 1 -2 mm.The thickness of the insole, including the coating on the sole surface, is preferably 1 to 3 mm, preferably 1 to 2 mm.
Die Bestimmung der Dicke einer Einlegesohle (inklusive der Beschichtung) wird unter Anwendung eines spezifischen Messdrucks von 0,5 kPa auf einer Tasterfläche von 25 cm2 durchgeführt. Insbesondere kann ein Dickenmessgerät DMT der Firma Schröder verwendet werden. Im übrigen wird die Dicke in Anlehnung an DIN EN ISO 9073-2: 1995 bestimmt.The determination of the thickness of an insole (including the coating) is carried out using a specific measuring pressure of 0.5 kPa on a probe surface of 25 cm 2 . In particular, a thickness gauge DMT Schröder can be used. Moreover, the thickness is determined in accordance with DIN EN ISO 9073-2: 1995.
Vorzugsweise weist die Einlegesohle eine Luftdurchlässigkeit von mindestens 50 mm/s, insbesondere mindestens 70 mm/s, weiter insbesondere mindestens 100 mm/s auf.Preferably, the insole has an air permeability of at least 50 mm / s, in particular at least 70 mm / s, more particularly at least 100 mm / s.
Die Bestimmung der Luftdurchlässigkeit erfolgt dabei wie folgt:The determination of the air permeability is carried out as follows:
Die Messung der Luftdurchlässigkeit ist an die Norm DIN EN ISO 9237: 1995-12 angelehnt. Die Luftdurchlässigkeit wird ausgedrückt als Geschwindigkeit eines Luftstromes, welcher unter festgelegten Bedingungen, nämlich für die Prüffläche, dem Differenzdruck und der Zeit, senkrecht zur Oberfläche durch die Messprobe hindurchgeht.The measurement of the air permeability is based on the standard DIN EN ISO 9237: 1995-12. The air permeability is expressed as the velocity of an air flow which under defined conditions, namely for the test area, the differential pressure and time, perpendicular to the surface passes through the sample.
Als Prüfgerät ist ein Luftdurchlässigkeitsprüfgerät nach DIN EN ISO 9237 einzusetzen. Ein derartiges Luftdurchlässigkeitsprüfgerät umfasst einen kreisförmigen Probenhalter mit einer Öffnung mit einer definierten Prüffläche, von 20 cm2, weiter eine Vorrichtung zur verwindungsfreien und sicheren Befestigung der Messprobe, weiter bevorzugt auch zusätzlich eine Schutzringvorrichtung, als Zusatz zur vorgenannten Vorrichtung zur Verhinderung von Entweichen von Luft über die Probenkanten, weiter ein mit dem Prüfkopf verbundenes Druckmessgerät, eine Vorrichtung zur Erzeugung einer konstanten Luftströmung und zur Einstellung der Strömungsgeschwindigkeit, mit der ein Differenzdruck erzeugt werden kann und weiter ein Durchflussmessgerät zur Anzeige der Strömungsgeschwindigkeit. Für die Durchführung der Messung kann beispielsweise das Gerät Typ FX 3300 Labortester III der Firma Textest AG, Schwerzenbach, Schweiz eingesetzt werden.The test instrument used is an air permeability tester in accordance with DIN EN ISO 9237. Such Luftdurchlässigkeitsprüfgerät comprises a circular sample holder with an opening with a defined Prüffläche, 20 cm 2 , further a device for torsion-free and secure attachment of the sample, more preferably also additionally a guard ring device, as an addition to the aforementioned device for preventing escape of air over the sample edges, further a pressure gauge connected to the probe, a device for generating a constant air flow and for adjusting the flow rate at which a differential pressure can be generated and further a flow meter for displaying the flow velocity. To carry out the measurement, it is possible, for example, to use the device type FX 3300 Labortester III from Textest AG, Schwerzenbach, Switzerland.
Zur Probenvorbereitung ist vor Beginn der Prüfung die Probe mindestens 24 Stunden im Normklima bei 20 ± 2 °C und 65 + 4% relativer Luftfeuchtigkeit zu lagern. Bei der Prüfung sind die gleichen Bedingungen einzustellen (20 ± 2 °C und 65 ± 4% RF).For sample preparation, before starting the test, store the sample for a minimum of 24 hours in standard atmosphere at 20 ± 2 ° C and 65 + 4% relative humidity. The same conditions must be set during the test (20 ± 2 ° C and 65 ± 4% RH).
Das Prüfmuster ist auf dem kreisförmigen Probenhalter zur Vermeidung von Falten mit ausreichender Spannung zu befestigen. Falls jedoch Falten entstehen, ist darauf zu achten, dass sich das Flächengebilde, also das Prüfmuster nicht in der Einspannebene verwindet wird. Bei der zu messenden Einlegesohle wird die Sohlenfläche mit der Beschichtung in Richtung der Unterdruckseite eingespannt, um Lecks zu vermeiden. Das Sauggebläse, das geeignet ist, die Luft durch das Prüfmuster hindurch zu drücken oder eine sonstige derartige Vorrichtung ist in Betrieb zu nehmen und die Strömungsgeschwindigkeit ist bis zum Erreichen des Differenzdruckes stufenlos einzustellen. Nach Erreichen von Strömungsgeschwindigkeiten unter stabilen Bedingungen, zumindest nach Abwarten von mindestens einer Minute ist die Strömungsgeschwindigkeit zu notieren. Die Prüfung ist an unterschiedlichen Stellen der Messprobe mindestens 10 mal unter den gleichen Bedingungen zu wiederholen. Als Differenzdruck wird im vorliegenden Fall der Einlegesohle 100 Pa eingesetzt.The test specimen shall be affixed to the circular sample holder with sufficient tension to avoid wrinkles. However, if wrinkles occur, make sure that the fabric, ie the test specimen is not twisted in the clamping plane. In the insole to be measured, the sole surface is clamped with the coating in the direction of the negative pressure side, to avoid leaks. The suction fan, which is suitable for pressing the air through the test pattern or another such device is to be put into operation and the flow rate is to be adjusted continuously until the differential pressure is reached. After reaching flow velocities under stable conditions, at least after waiting at least one minute, note the flow velocity. The test must be repeated at different points in the test sample at least 10 times under the same conditions. The differential pressure used in the present case is the
Die Luftdurchlässigkeit R ist in mm/s mit Hilfe der in der Norm angegebenen Gleichung zu berechnen:
Dabei bedeuten
- q (v) :
- arithmetisches Mittel des Luftstromes in dm3/min (l/min)
- A :
- Prüffläche, in cm2, hier 20 cm2
- 167:
- Umrechnungsfaktor von dm3/min oder l/min je cm2, in mm/s
- q (v):
- Arithmetic mean of the air flow in dm 3 / min (l / min)
- A:
- Test area, in cm 2 , here 20 cm 2
- 167:
- Conversion factor of dm 3 / min or l / min per cm 2 , in mm / s
Im Falle von Untersuchungen, in denen kein der Prüffläche des kreisförmigen Probenhalters angepasstes Prüfmuster vorhanden ist oder bereitgestellt werden kann, wie beispielsweise bei kleineren und/oder nicht kreisförmigen Prüfmustern, kann ein Prüfmuster mittels Zusammenbau mit einem Trägermaterial eingesetzt werden. Dann müssen bei Messung neben der Messung des eigentlichen Prüfmusters parallele zur Korrektur und Normierung notwendige Messungen, sogenannte Negativ- und Nullkontrollen, die die Träger- und Klebermaterialien berücksichtigen, mitgeführt und in die Auswertung miteinbezogen werden.In the case of tests in which no test pattern matched to the test surface of the circular sample holder is present or can be provided, such as smaller and / or noncircular test patterns, a test sample may be used by assembly with a substrate. Then, in addition to the measurement of the actual test pattern, parallel to the correction and normalization necessary in measurement Measurements, so-called negative and zero controls, which take into account the carrier and adhesive materials, are included and included in the evaluation.
Bei der Einlegesohle handelt es sich vorzugsweise um ein Einwegprodukt. Grundsätzlich sind jedoch auch Einlegesohlen denkbar, die gewaschen oder gereinigt werden können.The insole is preferably a disposable product. Basically, however, insoles are conceivable that can be washed or cleaned.
Auf die vorliegende Weise kann eine Einlegesohle bereitgestellt werden, die besonders günstige Eigenschaften hinsichtlich Biegesteifigkeit, Atmungsaktivität, Luftdurchlässigkeit sowie Antirutscheigenschaften der Sohle aufweisen.In the present manner, an insole can be provided, which have particularly favorable properties in terms of flexural strength, breathability, air permeability and anti-slip properties of the sole.
Weitere Merkmale und Einzelheiten sowie Vorteile der Erfindung ergeben sich aus der zeichnerischen Darstellung und nachfolgender Beschreibung der erfindungsgemäßen Schuhsohle. In der Zeichnung zeigen:
Figur 1- eine Darstellung einer Sohlenfläche einer erfindungsgemäßen Einlegesohle
- Figur 2
- eine Einlegesohle vor Aufbringen der Beschichtung,
- Figuren 3a - e)
- zeigen verschiedene Einzelmuster der Beschichtung,
- Figuren 4a - c)
- zeigen eine schematische, nicht maßstabsgetreue Aufsicht auf ein Biegesteifigkeitsgerät mit Durchführung der Messung,
- Figur 4d
- eine Ansicht auf den Probenhalter in Richtung der Pfeile D-D in
Figur 4a und - Figur 5
- zeigt eine schematische, nicht maßstabsgetreue Darstellung eines Ausschnitts eines Shore-A Härtemessgeräts.
- FIG. 1
- a representation of a sole surface of an insole according to the invention
- FIG. 2
- an insole before applying the coating,
- FIGS. 3a-e)
- show different individual patterns of the coating,
- FIGS. 4a-c)
- show a schematic, not to scale, top view of a bending stiffness device with measurement,
- FIG. 4d
- a view of the sample holder in the direction of Arrows DD in
FIG. 4a and - FIG. 5
- shows a schematic, not to scale representation of a section of a Shore A hardness meter.
Im Falle von einem mehrlagigen Grundmaterial kann die Verbindung der Lagen über ein Kalandersystem mit zwei Stahlwalzen über Druck und Temperatur erzielt werden, und dabei gleichzeitig die Prägung 106 aufgebracht werden. Das heißt, eine der beiden Kalanderwalzen weist eine Gravur auf.In the case of a multi-layer base material, the bonding of the layers can be achieved via a calender system with two steel rollers over pressure and temperature, and at the same time the
Das mehrlagige Grundmaterial der Einlegesohle weist dabei eine Basislage mit einer Grammatur von vorzugsweise 200 - 250 g/m2 auf.The multilayer base material of the insole has a base layer with a grammage of preferably 200-250 g / m 2 .
Wie
Die in
Darüber hinaus bietet eine Beschichtung, bei der die Einzelmuster 120 sich zwar schneiden, überlappen oder tangieren können, jedoch jedes Einzelmuster für sich erkennbar bleibt und insbesondere nicht durch eine durchgehende Linie verbunden werden können, die von einer Seite (Kante) der Sohle 122a zu einer gegenüberliegenden Seite (Kante) der Sohle 122b verläuft, den Vorteil, dass keine Vorzugsrichtungen bestehen. Als Seiten (Kanten) der Sohle 100 werden jeweils zwei gegenüberliegende Randabschnitte der Sohle 100 angesehen. Auf diese Weise können in sämtliche Richtungen die Antirutscheigenschaften verbessert werden.In addition, a coating in which the
Besonders bevorzugt ist dabei eine Beschichtung, bei der aufgrund der Ausgestaltung der Einzelmuster 120 zumindest ein Einzelmuster 120, bevorzugt mindestens 20% der Einzelmuster 120 der Sohlenfläche, besonders bevorzugt jedes Einzelmuster 120, einen Abschnitt bzw. Bereich 128 aufweist, der senkrecht, also mit einem Winkel 132 von 90° zu einer beliebigen Richtung 130 in der Fläche der Einlegesohle 100 verläuft, so wie in
Die optimale Ausprägung der genannten Vorteile wird dadurch erreicht, dass die Einzelmuster 120 voneinander diskret sind und insbesondere nicht so ineinander übergehen, dass sich die Einzelmuster 120 in der Gesamtheit der Muster auflösen, wie es beispielsweise für die Einzelrauten oder Quadrate in einem Gittermuster der Fall ist.The optimum expression of the stated advantages is achieved in that the
Weitere bevorzugte Einzelmuster zeigen die
Sofern sich ein Einzelmuster 120 als Mustergruppe 124 aus mehreren Musterelementen 126 zusammensetzt, können diese, wie in
Der dynamische Reibungskoeffizient der beschichteten Sohlenfläche beträgt gemessen in Anlehnung an ASTM D 1894-01 zwischen 0,8 und 1,4. Die Biegesteifigkeit der erfindungsgemäßen beschichteten Einlegesohle 100 beträgt vorzugsweise 700 - 1000 mN, wobei sich eine prozentuale der Biegesteifigkeitszunahme gegenüber der unbeschichteten Sohle von 15- 20% ergab. Die Luftdurchlässigkeit der Einlegesohle beträgt ca. 100 mm/s.The coefficient of dynamic friction of the coated sole surface, measured on the basis of ASTM D 1894-01, is between 0.8 and 1.4. The flexural stiffness of the
Claims (20)
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ES15185713T ES2879615T3 (en) | 2015-09-17 | 2015-09-17 | Template |
CA2996972A CA2996972A1 (en) | 2015-09-17 | 2016-09-02 | Insole |
US15/758,007 US10939728B2 (en) | 2015-09-17 | 2016-09-02 | Insole |
PCT/EP2016/070744 WO2017045937A1 (en) | 2015-09-17 | 2016-09-02 | Insole |
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CN110497681A (en) * | 2018-05-18 | 2019-11-26 | 台北智慧材料股份有限公司 | Graphical stereo fabric composite material, its manufacturing method and its manufacturing device |
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USD719331S1 (en) | 2012-03-23 | 2014-12-16 | Reebok International Limited | Shoe |
ES2879615T3 (en) * | 2015-09-17 | 2021-11-22 | Cmc Consumer Medical Care Gmbh | Template |
JP1598752S (en) * | 2017-02-09 | 2018-03-05 | ||
TWI648160B (en) * | 2018-03-16 | 2019-01-21 | Tsm Smart Materials Co., Ltd. | Method for manufacturing three-dimensional fabric composite material, coating machine and composite material obtained by using same |
TWI754060B (en) * | 2018-05-23 | 2022-02-01 | 張統一 | Health insole |
USD854297S1 (en) * | 2018-07-19 | 2019-07-23 | Nike, Inc. | Shoe |
USD854296S1 (en) * | 2018-07-19 | 2019-07-23 | Nike, Inc. | Shoe |
USD896491S1 (en) * | 2018-12-03 | 2020-09-22 | Cole Haan Llc | Shoe sole |
JP7461750B2 (en) | 2020-01-31 | 2024-04-04 | 白元アース株式会社 | Shoe insoles |
USD911000S1 (en) * | 2020-02-28 | 2021-02-23 | Nike, Inc. | Shoe |
USD910993S1 (en) * | 2020-02-28 | 2021-02-23 | Nike, Inc. | Shoe |
JP2023529310A (en) * | 2020-06-03 | 2023-07-10 | オーツー・パートナーズ・エルエルシー | Fiber-based shoe insole and manufacturing method thereof |
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