WO2014068160A1 - Unified insole for footwear and method for producing insoles - Google Patents

Unified insole for footwear and method for producing insoles Download PDF

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Publication number
WO2014068160A1
WO2014068160A1 PCT/ES2013/070748 ES2013070748W WO2014068160A1 WO 2014068160 A1 WO2014068160 A1 WO 2014068160A1 ES 2013070748 W ES2013070748 W ES 2013070748W WO 2014068160 A1 WO2014068160 A1 WO 2014068160A1
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WO
WIPO (PCT)
Prior art keywords
insole
template
footwear
unified
last
Prior art date
Application number
PCT/ES2013/070748
Other languages
Spanish (es)
French (fr)
Inventor
Francisco Ripoll Juan
Original Assignee
Francisco Ripoll Juan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ES201200998U external-priority patent/ES1078396Y/en
Priority claimed from ES201201240A external-priority patent/ES2482465B1/en
Application filed by Francisco Ripoll Juan filed Critical Francisco Ripoll Juan
Publication of WO2014068160A1 publication Critical patent/WO2014068160A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole-and-heel integral units
    • A43B13/38Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/40Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process with cushions
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole-and-heel integral units
    • A43B13/38Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/386Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process multilayered

Definitions

  • the invention refers to a template for unified footwear is composed of three pieces, the first one that we could call lining, the second, spongy material as defined, and the third one that has a base support function, to which we could denominate plant
  • This invention will solve perfection in fit and advances in manufacturing, and its objective is that through a single piece you can achieve faster manufacturing, with cheaper costs, perfection and comfort in footwear.
  • the current manufacturing process for templates consists of two phases.
  • the spongy material and the plant material that already exists in the market as a single piece are attached to the shoe last.
  • the lining is subsequently added to this piece when the shoe is already assembled and removed from last. That is, the assembly is carried out with the piece formed by the spongy material and the plant material on the one hand and with the lining on the other, which increases the manufacturing time by increasing the cost.
  • the present invention has been developed in order to provide a template and manufacturing process for it that is configured as a novelty within the field of application and resolves the aforementioned drawbacks, also providing other additional advantages that will be apparent from of the description that follows.
  • the preparation of the unified template implies to assemble three perfectly adhered pieces and in the correct order so that they form a single one on which to draw and cut the design of the demanded template so that it is assembled as a whole when cutting the shoe.
  • the lower part would be of plant material, of greater or lesser hardness and variable thickness, which will serve as the basis for the preparation of the template.
  • the centerpiece would be of a spongy material also of varying thickness and density, whose purpose is to incorporate grinding and that is soft and recoverable enough to provide maximum comfort on the feet.
  • the top piece would be synthetic, natural material, etc., which we call lining.
  • the template In the first phase, the template is correctly fastened to its corresponding shape; in a second phase the softening of the template occurs in a reactivator oven, and; in a third phase, and immediately after softening, the template is molded by cooling.
  • FIG. 1 shows the front view of each of the pieces that are going to adhere to form the unified template.
  • the piece of the lining (1) which by its variation will be the one proposed by the customer; that of the spongy material (2), at the request of the client and variable in material, thickness, density etc., and the piece of the plant material (3), which will be determined by the customer in product, hardness, flexibility, thickness, etc. .
  • Figure 2 shows the perspective view of the three pieces already assembled and in the order corresponding to that mentioned in Figure 1.
  • Figure 3 shows the template model extracted from the product obtained after the superposition of the three pieces. In the drawing you can see the lining that would form the upper part of the insole and that remains in contact with the foot (1), a plant material that would remain at the base after its assembly and glued to the shoe cut in the usual way (3 ) and between both materials, the spongy material (2) that would be perfectly adhered to the aforementioned (1) (3).
  • the templates will be cut or stamped in the usual way (FIG. 3).
  • the unified template may have the usual finishes of molding, placement or not of cambrillón, stamped or not of your brand, number, etc.
  • the template is placed in its corresponding shape (FIG. 4) and duly attached to it in the usual way. It is then introduced into a reactivator oven (of a type known in the state of the art, so it will not go into greater detail in its description) through which we will provide the necessary time and the appropriate temperature to achieve the softening point. necessary.
  • a reactivator oven of a type known in the state of the art, so it will not go into greater detail in its description
  • the template and its last will be introduced into the molding machine with pressurized or vacuum air so that after the stipulated time for cooling has elapsed it can be extracted thus obtaining a template that accurately reflects the shape of the last used and which is identical to it (FIG. 5).
  • this system we call this system as "mud-track”.
  • the memory of the adaptability acquired in the insole with this system is guaranteed after its heat treatment preventing said memory from disappearing after said treatment which gives the sole of the foot a feeling of total coupling with the insole during the use of the shoe providing A continuous feeling of well-being.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention relates to a unified insole for footwear, consisting of three elements: a cover (1), a spongy material (2), and a sole material (3). The invention is characterised in that the cover forms the upper part of the insole and is in contact with the foot, the sole material (3) is at the bottom following the assembly thereof and stuck to the upper of the shoe, and the spongy material (2) is perfectly adhered between the two materials. As such, a single piece results in a faster production process, reduced costs and perfection and comfort in the footwear. The invention also relates to a method for producing insoles that results in an insole that is the exact image of the last, and the number thereof, for which it is to be used.

Description

PLANTILLA PARA CALZADO UNIFICADA Y PROCEDIMIENTO DE  TEMPLATE FOR UNIFIED FOOTWEAR AND PROCEDURE FOR
FABRICACIÓN DE PLANTILLAS  MANUFACTURE OF TEMPLATES
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente solicitud de patente de invención tiene por objeto el registro de una plantilla para calzado así como un procedimiento de fabricación de la misma que incorpora notables innovaciones y ventajas. The purpose of this invention patent application is to register a shoe template as well as a manufacturing process that incorporates notable innovations and advantages.
Más concretamente, la invención hace referencia una plantilla para calzado unificada está compuesta por tres piezas, la primera que podríamos denominar forro, la segunda, materia esponjosa tal como se define, y la tercera que tiene una función de soporte base, a la que podríamos denominar planta. Esta invención resolverá perfección en calce y avances en fabricación, y su objetivo es que mediante una sola pieza se pueda conseguir mayor rapidez en fabricación, con abaratamiento de costes, perfección y comodidad en el calzado. ANTECEDENTES DE LA INVENCIÓN More specifically, the invention refers to a template for unified footwear is composed of three pieces, the first one that we could call lining, the second, spongy material as defined, and the third one that has a base support function, to which we could denominate plant This invention will solve perfection in fit and advances in manufacturing, and its objective is that through a single piece you can achieve faster manufacturing, with cheaper costs, perfection and comfort in footwear. BACKGROUND OF THE INVENTION
El actual proceso de fabricación para plantillas consta de dos fases. En una primera fase se acopla a la horma del zapato la materia esponjosa y el material de planta que sí existe ya en el mercado como una pieza única. A esta pieza posteriormente se le incorpora el forro cuando el zapato ya está montado y sacado de horma. Es decir, el montaje se realiza con la pieza formada por el material esponjoso y el material de planta por un lado y con el forro por otro, lo que aumenta el tiempo de fabricación encareciendo el coste. The current manufacturing process for templates consists of two phases. In the first phase, the spongy material and the plant material that already exists in the market as a single piece are attached to the shoe last. The lining is subsequently added to this piece when the shoe is already assembled and removed from last. That is, the assembly is carried out with the piece formed by the spongy material and the plant material on the one hand and with the lining on the other, which increases the manufacturing time by increasing the cost.
Por otra parte, también es importante hacer mención que en un proceso de fabricación de calzado convencional el acoplamiento de una plantilla a la horma no es perfecto puesto que no se ajusta debidamente a la horma tendiendo a desplazarse un tanto hacia delante o atrás o hacia los lados causando, en ocasiones, algún contratiempo a la hora de montar el zapato como puede ser la necesidad de rebajar manualmente la plantilla que se ha desplazado y ha quedado fuera de la horma. DESCRIPCIÓN DE LA INVENCIÓN On the other hand, it is also important to mention that in a process of manufacturing conventional footwear the coupling of a template to the last is not perfect since it does not fit properly to the last tending to move somewhat forward or backward or towards the sides causing, sometimes, some setback at the time of mounting the shoe such as the need to manually lower the template that has moved and has been out of the last. DESCRIPTION OF THE INVENTION
La presente invención se ha desarrollado con el fin de proporcionar una plantilla y proceso de fabricación para la misma que se configura como una novedad dentro del campo de aplicación y resuelva los inconvenientes anteriormente mencionados, aportando, además, otras ventajas adicionales que serán evidentes a partir de la descripción que se acompaña a continuación. The present invention has been developed in order to provide a template and manufacturing process for it that is configured as a novelty within the field of application and resolves the aforementioned drawbacks, also providing other additional advantages that will be apparent from of the description that follows.
La confección de la plantilla unificada implica montar tres piezas perfectamente adheridas y en el orden correcto para que formen una única sobre la que trazar y cortar el diseño de la plantilla demandada para que se monte como un todo al corte del zapato. The preparation of the unified template implies to assemble three perfectly adhered pieces and in the correct order so that they form a single one on which to draw and cut the design of the demanded template so that it is assembled as a whole when cutting the shoe.
Por tanto, tendríamos tres piezas de materiales que unir: la inferior, la central y la superior. Therefore, we would have three pieces of materials to join: the lower, the central and the upper.
La pieza inferior sería de material de planta, de mayor o menor dureza y espesor variable, que servirá de base para la confección de la plantilla. La pieza central sería de un material esponjoso también de espesor y densidad variable, cuya finalidad es incorporar molleo y que sea lo suficientemente blando y recuperable para aportar la máxima comodidad en los pies. Y la pieza superior sería de material sintético, natural, etc., a la que denominamos forro. The lower part would be of plant material, of greater or lesser hardness and variable thickness, which will serve as the basis for the preparation of the template. The centerpiece would be of a spongy material also of varying thickness and density, whose purpose is to incorporate grinding and that is soft and recoverable enough to provide maximum comfort on the feet. And the top piece would be synthetic, natural material, etc., which we call lining.
Es también otro objeto de la presente invención proporcionar un procedimiento para fabricar plantillas cuyo objetivo es conseguir una plantilla que sea la imagen exacta de la horma, y su número, para la cual va a ser utilizada. Más en particular, este procedimiento está previsto para la fabricación de una plantilla para calzado que está constituida por tres capas, siendo una capa de forro, una segunda capa de material esponjoso y una tercera capa de material de planta, presentando las siguientes fases: It is also another object of the present invention to provide a method for manufacturing templates whose objective is to achieve a template that is the exact image of the last, and its number, for which it will be used. More particularly, this procedure is intended for the manufacture of a shoe insole that is made up of three layers, being a lining layer, a second layer of spongy material and a third layer of plant material, presenting the following phases:
En una primera fase se procede a la correcta sujeción de la plantilla a su horma correspondiente; en una segunda fase se produce el reblandecimiento de la plantilla en un horno reactivador, y; en una tercera fase, e inmediatamente después del reblandecimiento, se lleva a cabo el moldeado de la plantilla por enfriamiento. BREVE DESCRIPCIÓN DE LOS DIBUJOS In the first phase, the template is correctly fastened to its corresponding shape; in a second phase the softening of the template occurs in a reactivator oven, and; in a third phase, and immediately after softening, the template is molded by cooling. BRIEF DESCRIPTION OF THE DRAWINGS
En la figura 1 (FIG.1 ) se aprecia la visión frontal de cada una de las piezas que se van a adherir para formar la plantilla unificada. La pieza del forro (1 ), que por su variación será aquel que proponga el cliente; la del material esponjoso (2), a petición del propio cliente y variable en material, espesor, densidad etc., y la pieza del material de planta (3), que la determinará el cliente en producto, dureza, flexibilidad, espesor, etc. Figure 1 (FIG. 1) shows the front view of each of the pieces that are going to adhere to form the unified template. The piece of the lining (1), which by its variation will be the one proposed by the customer; that of the spongy material (2), at the request of the client and variable in material, thickness, density etc., and the piece of the plant material (3), which will be determined by the customer in product, hardness, flexibility, thickness, etc. .
En la figura 2 se aprecia la visión en perspectiva de las tres piezas ya montadas y en el orden correspondiente al mencionado en la figura 1 . En la figura 3 se muestra el modelo de plantilla extraído del producto obtenido tras la superposición de las tres piezas. En el dibujo se aprecia el forro que conformaría la parte superior de la plantilla y que queda en contacto con el pie (1 ), un material de planta que quedaría en la base tras su montaje y pegado al corte del zapato en forma habitual (3) y entre ambos materiales, el material esponjoso (2) que iría perfectamente adherido a los anteriormente citados (1 ) (3). Figure 2 shows the perspective view of the three pieces already assembled and in the order corresponding to that mentioned in Figure 1. Figure 3 shows the template model extracted from the product obtained after the superposition of the three pieces. In the drawing you can see the lining that would form the upper part of the insole and that remains in contact with the foot (1), a plant material that would remain at the base after its assembly and glued to the shoe cut in the usual way (3 ) and between both materials, the spongy material (2) that would be perfectly adhered to the aforementioned (1) (3).
En la figura 4 podemos ver la plantilla todavía rígida que será sujeta a la horma para ser tratada con el sistema presentado en esta invención. In Figure 4 we can see the template still rigid that will be attached to the last to be treated with the system presented in this invention.
En la figura 5 observamos cómo tras el tratamiento con calor la plantilla se ajusta perfectamente a la horma y a cada una de sus curvaturas pudiendo contemplar un pequeño reborde, que puede existir o no y, cuyas dimensiones serán variadas. In figure 5 we observe how after the heat treatment the template fits perfectly to the last and to each of its curvatures being able to contemplate a small flange, which may or may not exist and, whose dimensions will be varied.
En la figura 6 podemos apreciar el valor añadido a la plantilla inicial (FIG.1 ) por lo flexible y moldeable que resulta a cada flexión y curvatura que presenta la horma. Las flechas indican puntos clave de acoplamiento de la plantilla a la horma que con las plantillas actuales no se consigue de manera exacta. DESCRIPCIÓN DE UN MODO DE REALIZACIÓN In Figure 6 we can see the value added to the initial template (FIG. 1) for the flexible and moldable shape that results from each flexion and curvature that the last presents. The arrows indicate key points of coupling of the template to the last that with the current templates is not achieved exactly. DESCRIPTION OF AN EMBODIMENT
Dado que este sistema se desarrolla desde su inicio por medios mecánicos industrializados debidamente controlados, nos permite gozar de estimables garantías. Las piezas de los diferentes materiales se colocan uno sobre otro en el orden citado y descrito en la figura 1 y por procedimiento industrial todo ello queda unido en un solo cuerpo tal y como muestra la figura 2. Since this system is developed from the beginning by duly controlled industrialized mechanical means, it allows us to enjoy considerable guarantees. The pieces of the different materials are placed one above the other in the order cited and described in Figure 1 and by industrial process all of this is joined in a single body as shown in Figure 2.
Una vez superpuestas las piezas (FIG. 2) se procederá al corte o troquelado de las plantillas en la forma habitual (FIG. 3). Una vez realizada la plantilla unificada, ésta podrá tener los acabados habituales de moldeo, colocación o no de cambrillón, timbrado o no de su marca, número, etc. Once the pieces are superimposed (FIG. 2), the templates will be cut or stamped in the usual way (FIG. 3). Once the unified template is made, it may have the usual finishes of molding, placement or not of cambrillón, stamped or not of your brand, number, etc.
De todo lo descrito y de la observación de las figuras, se desprenden las ventajas de la plantilla unificada en cuestión, respecto a lo que ya existe sobre este sistema en la industria del calzado. From everything described and from the observation of the figures, the advantages of the unified workforce in question arise, with respect to what already exists on this system in the footwear industry.
En primer lugar, se produce un ahorro en mano de obra dado que en una sola operación el zapato queda montado de planta en su totalidad, puesto que al sacar la horma del zapato, no hará falta introducir ningún forro manualmente, pues éste ya viene incorporado. Además, al no ser necesaria la introducción de una plantilla a posteriori, los pies no sufren ninguna opresión por pérdida de espacio en el interior del zapato, ya que el calce será fiel reflejo de la horma con que se haya fabricado el zapato. In the first place, there is a saving in labor because in a single operation the shoe is completely assembled, since when taking the last of the shoe, it will not be necessary to enter any lining manually, since it is already incorporated . In addition, since the introduction of a template is not necessary afterwards, the feet do not suffer any oppression due to loss of space inside the shoe, since the shoe will be a true reflection of the last with which the shoe was manufactured.
Además, por su acolchado y ajuste perfecto resulta sumamente agradable al calce, experimentando al caminar una gran sensación de bienestar. In addition, for its padding and perfect fit it is extremely pleasant to fit, experiencing a great feeling of well-being while walking.
Este sistema nos permite avances en la producción. A continuación se describe un procedimiento para obtener la plantilla anteriormente descrita, tal y como se expone: This system allows us advances in production. A procedure for obtaining the template described above is described below, as set forth:
Primeramente se procede a la colocación de la plantilla a su horma correspondiente (FIG.4) y debidamente sujeta a la misma en forma habitual. Seguidamente se introduce en un horno reactivador (de tipo conocido en el estado de la técnica por lo que no se va a entrar en mayor detalle en su descripción) a través del cual proporcionaremos el tiempo necesario y la temperatura apropiada para conseguir el punto de reblandecimiento necesario. Después de esta operación e inmediatamente, la plantilla y su horma serán introducidas en la máquina de moldeo con aire a presión o al vacío para que una vez transcurrido el tiempo estipulado para su enfriamiento pueda ser extraída obteniéndose de este modo una plantilla que refleja exactamente la forma de la horma utilizada y que es idéntica a la misma (FIG.5). A dicho sistema lo denominamos como "huella-barro". Todo ello nos permitirá que cuando sobrepongamos la plantilla en su horma y número correspondiente para ser montada al zapato se adapte y asiente perfectamente a dicha horma (FIG.6) y no se produzcan desplazamientos de la misma, lo que implica una mejora importante en la fabricación del calzado que redunda en rapidez y abaratamiento de costes. Este acoplamiento minucioso a cada horma y a cada número permite hacer para cada pie una plantilla que sea la copia exacta de las particularidades de su planta. First, the template is placed in its corresponding shape (FIG. 4) and duly attached to it in the usual way. It is then introduced into a reactivator oven (of a type known in the state of the art, so it will not go into greater detail in its description) through which we will provide the necessary time and the appropriate temperature to achieve the softening point. necessary. After this operation and immediately, the template and its last will be introduced into the molding machine with pressurized or vacuum air so that after the stipulated time for cooling has elapsed it can be extracted thus obtaining a template that accurately reflects the shape of the last used and which is identical to it (FIG. 5). We call this system as "mud-track". All this will allow us that when we overlap the template in its last and corresponding number to be mounted to the shoe, it adapts and seats perfectly to said last (FIG. 6) and there are no displacements of the same, which implies an important improvement in the manufacture of footwear that results in speed and lower costs. This thorough coupling to each last and each number allows for each foot a template that is the exact copy of the characteristics of your plant.
Además la memoria de la adaptabilidad adquirida en la plantilla con este sistema está garantizada tras su tratamiento con calor evitando que dicha memoria desaparezca tras dicho tratamiento lo cual aporta a la planta del pie una sensación de acoplamiento total con la plantilla durante el uso del zapato proporcionando una continua sensación de bienestar. In addition the memory of the adaptability acquired in the insole with this system is guaranteed after its heat treatment preventing said memory from disappearing after said treatment which gives the sole of the foot a feeling of total coupling with the insole during the use of the shoe providing A continuous feeling of well-being.
Los detalles, las formas, las dimensiones y demás elementos accesorios, así como los materiales empleados en la fabricación de la plantilla de la invención podrán ser convenientemente sustituidos por otros que sean técnicamente equivalentes y no se aparten de la esencialidad de la invención ni del ámbito definido por las reivindicaciones que se incluyen a continuación. The details, shapes, dimensions and other accessory elements, as well as the materials used in the manufacture of the template of the invention may be conveniently replaced by others that are technically equivalent and do not depart from the essentiality of the invention or the scope defined by the claims included below.

Claims

REIVINDICACIONES
1 . - Plantilla para calzado unificada constituida por tres elementos, el forro (1 ), el material esponjoso (2) y el material de planta (3) caracterizada porque el forro conforma la parte superior de la plantilla y queda en contacto con el pie, el material de planta (3) queda en la base tras su montaje y pegado al corte del zapato y entre ambos materiales, el material esponjoso (2) queda perfectamente adherido. one . - Template for unified footwear consisting of three elements, the lining (1), the spongy material (2) and the plant material (3) characterized in that the lining forms the upper part of the insole and is in contact with the foot, the plant material (3) remains in the base after its assembly and glued to the shoe cut and between both materials, the spongy material (2) is perfectly adhered.
2. - Plantilla para calzado unificada según reivindicación 1 en la que los materiales de los tres elementos pueden ser variables así como el resto de características técnicas como espesor, densidad, flexibilidad, etc. para cada uno de ellos. 2. - Insole for unified footwear according to claim 1 in which the materials of the three elements can be variable as well as the rest of technical characteristics such as thickness, density, flexibility, etc. for each of them.
3. - Plantilla para calzado unificada según reivindicación 1 que podrá tener los acabados habituales de moldeo como cambrillón, timbrado de la marca, número, etc. 3. - Insole for unified footwear according to claim 1 that may have the usual molding finishes such as cambrillón, brand stamping, number, etc.
4.- Procedimiento de fabricación de una plantilla para calzado con memoria de flexibilidad, en el que la plantilla está constituida por tres capas, siendo una capa de forro, una segunda capa de material esponjoso y una tercera capa de material de planta, caracterizado por el hecho de que presenta las siguientes fases: En una primera fase se procede a la correcta sujeción de la plantilla en una horma correspondiente; en una segunda fase se produce el reblandecimiento de la plantilla en un horno reactivador, y; en una tercera fase, e inmediatamente después del reblandecimiento, se lleva a cabo el moldeado de la plantilla por enfriamiento. 4.- Procedure of manufacturing a footwear insole with flexibility memory, in which the insole consists of three layers, being a lining layer, a second layer of spongy material and a third layer of plant material, characterized by the fact that it presents the following phases: In a first phase, the template is correctly secured in a corresponding last; in a second phase the softening of the template occurs in a reactivator oven, and; in a third phase, and immediately after softening, the template is molded by cooling.
5.- Procedimiento de fabricación de plantilla para calzado con memoria de flexibilidad según reivindicación 4, caracterizado porque el moldeado del material de planta de la plantilla guiará el moldeado de toda la plantilla en su conjunto para una completa adaptación de la misma a la horma. 5.- Manufacturing process of footwear insole with flexibility memory according to claim 4, characterized in that the molding of the insole material will guide the molding of the entire insole as a whole for a complete adaptation thereof to the last.
PCT/ES2013/070748 2012-10-29 2013-10-29 Unified insole for footwear and method for producing insoles WO2014068160A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ESU201200998 2012-10-29
ES201200998U ES1078396Y (en) 2012-10-29 2012-10-29 Template for unified footwear
ES201201240A ES2482465B1 (en) 2012-12-10 2012-12-10 Footprint-mud system for footwear insole
ESP201201240 2012-12-10

Publications (1)

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WO2014068160A1 true WO2014068160A1 (en) 2014-05-08

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120101A (en) * 1976-07-07 1978-10-17 John Alan Drew Orthopaedic footwear
WO2008070537A2 (en) * 2006-12-01 2008-06-12 Ingenious Targeting Laboratory, Inc. System and methods of making custom footwear

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120101A (en) * 1976-07-07 1978-10-17 John Alan Drew Orthopaedic footwear
WO2008070537A2 (en) * 2006-12-01 2008-06-12 Ingenious Targeting Laboratory, Inc. System and methods of making custom footwear

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