ES2634209T3 - Tiras y laminados de ganchos con hendiduras y artículos que los contienen - Google Patents
Tiras y laminados de ganchos con hendiduras y artículos que los contienen Download PDFInfo
- Publication number
- ES2634209T3 ES2634209T3 ES11798693.5T ES11798693T ES2634209T3 ES 2634209 T3 ES2634209 T3 ES 2634209T3 ES 11798693 T ES11798693 T ES 11798693T ES 2634209 T3 ES2634209 T3 ES 2634209T3
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- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
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Abstract
Una tira (10) de ganchos que comprende: un soporte (14) que tiene una primera superficie y una longitud en una dirección (L) de la máquina; múltiples filas (16) de elementos (12) de gancho alineados en la dirección (L) de la máquina y que sobresalen de la primera superficie del soporte (14); y una hendidura interrumpida (20a) cortada a través del soporte (14) entre al menos un par de filas (16) adyacentes de los elementos (12) de gancho, en donde la hendidura interrumpida (20a) se extiende en la dirección (L) de la máquina y es interrumpida por al menos una región puente (22) intacta del soporte (14); en donde al menos se cumple una de las siguientes limitaciones: en donde hay un corte (24) de profundidad parcial en la al menos una región puente (22) intacta, en donde el corte (24) de profundidad parcial es colineal con la hendidura interrumpida (20a) pero no se extiende a través del soporte (14); o en donde las hendiduras interrumpidas (20a) se cortan a través del soporte (14) entre al menos tres pares de filas (16) adyacentes de los elementos (12) de gancho, y en donde el número de filas (16) de elementos (12) de gancho entre al menos algunas de las hendiduras interrumpidas (20a) varía.
Description
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la Fig. 7 es una vista en perspectiva de un artículo absorbente que incorpora una tira de ganchos según la presente descripción;
la Fig. 7A es una vista en sección transversal lateral ilustrativa tomada a lo largo de la línea 7A-7A de la Fig. 7;
la Fig. 8 es una curva de desprendimiento de un fijador sin hendiduras comparativo mientras se retira de un bucle tejido;
la Fig. 9 es una curva de desprendimiento de un laminado de fijación que incluye una muestra de Ejemplo de tira de gancho 1 mientras se retira de un bucle tejido;
la Fig. 10 es una curva de desprendimiento de un laminado de fijación sin hendiduras comparativo mientras se retira de un material en bucle no tejido;
la Fig. 11 es una curva de desprendimiento de un laminado de fijación que incluye una muestra de Ejemplo de tira de gancho 1 mientras se retira de un material en bucle no tejido;
la Fig. 11A es una curva de desprendimiento de un laminado de fijación que incluye una muestra de Ejemplo de tira de gancho 2 mientras se retira de un material en bucle no tejido;
la Fig. 12 es una fotografía de un laminado de fijación sin hendiduras comparativo mientras se desprende de un material en bucle no tejido; y
la Fig. 13 es una fotografía de un laminado de fijación que incluye una tira de ganchos según la presente descripción mientras se desprende de un material en bucle no tejido.
Descripción detallada
A continuación, se hará una referencia detallada de las realizaciones de la descripción, uno o más ejemplos de las cuales se muestran en los dibujos. Las características que se muestran o describen como parte de una realización se pueden utilizar con otras realizaciones para producir una tercera realización adicional. Está previsto que la presente descripción incluya estas y otras modificaciones y variaciones.
La Fig. 1 ilustra una tira 10 de ganchos según algunas realizaciones de la presente descripción. La tira 10 de ganchos tiene un soporte 14 con múltiples filas 16 de elementos 12 de gancho que sobresalen de una primera superficie del soporte 14. La primera superficie del soporte es la superficie que queda visible en la Fig. 1. La primera superficie también se puede llamar la primera superficie principal en cualquiera de las realizaciones descritas en la presente memoria. Las múltiples filas 16 se alinean en al menos una primera dirección; En la realización ilustrada, las filas 16 de elementos 12 de gancho se alinean en la dirección longitudinal L. Las hendiduras interrumpidas 20a se cortan en el soporte entre algunos pares de filas adyacentes 16 de elementos 12 de gancho. Debe entenderse, en general, que cuando las hendiduras se cortan entre al menos algunos pares de filas adyacentes 16, hay al menos dos hendiduras en el soporte 14. Las hendiduras interrumpidas 20a son lineales en la misma dirección “L” que las múltiples filas 16 y se extienden desde el borde superior 18 hasta el borde inferior 28 del soporte 14. Las hendiduras interrumpidas son interrumpidas por regiones puente 22 intactas del soporte 14. Las regiones puente 22 son las regiones donde el soporte no se ha cortado atravesándolo y son colineales con la hendidura interrumpida 20a. En la realización ilustrada, las hendiduras interrumpidas 20a no están separadas de forma uniforme entre las filas de elementos 12 de gancho. Hay tres filas 16 de elementos 12 de gancho entre algunas hendiduras interrumpidas 20a adyacentes y una fila 16 de elementos 12 de gancho entre otras hendiduras interrumpidas 20a adyacentes. Además, en la realización ilustrada, las regiones puente 22 están escalonadas en una dirección “W” perpendicular a la dirección “L” de las hendiduras interrumpidas 20a.
En la Fig. 1A se muestra una sección transversal tomada a través de la tira 10 de ganchos de la Fig. 1 en la línea 1Α, 1B-1A, 1B, que se extiende a través de las hendiduras interrumpidas en las regiones con hendidura, no las regiones puente. Las hendiduras interrumpidas 20a se extienden a través del soporte 14. Las hendiduras interrumpidas 20a se hacen sin eliminar material de la tira de ganchos pero en la Fig. 1A no se muestran a escala para hacerlas más fácilmente visibles. Es decir, las múltiples partes del soporte 14 sobre cualquier cara de las hendiduras interrumpidas 20a están adyacentes y no separadas.
El corte interrumpido que se muestra en la Fig. 1 para dejar regiones puente también puede llevarse a cabo en algunas realizaciones que tengan hendiduras parciales, como se muestra en la Fig. 1B. En la Fig. 1B, las hendiduras parciales 20b están cortadas en la primera cara del soporte 14 (es decir, la misma cara desde la que sobresalen los elementos 12 de gancho) entre algunos pares de filas adyacentes 16 de elementos 12 de gancho. En la realización ilustrada, las hendiduras parciales 20b son interrumpidas por regiones puente 22 del soporte 14 que no están cortadas. Las hendiduras parciales 20b penetran el espesor del soporte 14 en un intervalo del 40 al 90 por ciento. Asimismo, en esta realización, las hendiduras parciales 20b se hacen, de forma típica, sin eliminar material de la tira de ganchos pero en la Fig. 1B no se muestran a escala para hacerlas más fácilmente visibles.
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5
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25
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45
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decir, en una dirección “W” sustancialmente perpendicular a la primera dirección o dirección de la máquina). Como se muestra en los ejemplos abajo, el número de hendiduras (es decir, hendiduras interrumpidas, hendiduras parciales, hendiduras incompletas o hendiduras que forman tiras adyacentes separadas del soporte) en una tira de ganchos según la presente descripción puede afectar a la fuerza frente al desprendimiento que puede conseguirse, donde el área bajo una curva de desprendimiento aumenta en función del número de hendiduras a través de la tira de ganchos.
El cambio del número de hendiduras a través de la tira de ganchos está relacionado con el número de filas de elementos de gancho entre dos hendiduras adyacentes cualesquiera, dependiendo de la densidad de los elementos de gancho en la tira de ganchos. Para una tira de ganchos, laminado de fijación, artículo absorbente o método según la presente descripción, la densidad de elementos 12 de gancho en el soporte 14 se encuentra en un intervalo de 20 por cm2 a
2 2222
1000 por cm(en algunas realizaciones, en un intervalo de 20 por cma 500 por cm, 50 por cma 500 por cm,
2 22 2 2 2
60 por cma 400 por cm, 75 por cma 350 por cmo 100 por cma 300 por cm). Ventajosamente, como las hendiduras están entre filas adyacentes de elementos de gancho, la incorporación de hendiduras en las tiras de ganchos descritas en la presente memoria no reduce la densidad de elementos de gancho. Para cualquiera de las realizaciones de las tiras de ganchos, los laminados de fijación o los artículos absorbentes descritas en la presente memoria o los métodos para fabricarlos, el número de filas de elementos de gancho entre dos hendiduras adyacentes cualesquiera (es decir, hendiduras interrumpidas, hendiduras parciales, hendidura incompletas o hendiduras que forman tiras adyacentes separadas del soporte) puede ajustarse, dependiendo de los requisitos de la aplicación. En algunas realizaciones hay hasta 10, 9, 8, 7, 6, 5, 4, 3, 2 o 1 filas de elementos de gancho entre dos hendiduras adyacentes cualesquiera (es decir, hendiduras interrumpidas, hendiduras parciales, hendidura incompletas o hendiduras que forman tiras adyacentes separadas del soporte). En algunas realizaciones, las filas de elementos de gancho y las hendiduras alternan a través de la tira de ganchos (es decir, hay una hendidura entre cada fila de elementos de gancho).
Diversas formas de elementos de gancho pueden ser útiles para la puesta en práctica de la presente descripción. En algunas realizaciones, todos los elementos de gancho tienen salientes de enganche en bucle. En algunas de estas realizaciones, al menos una parte de cada saliente de enganche en bucle se extiende en un ángulo distinto de cero hacia la primera dirección (en algunas realizaciones, la dirección de la máquina), lo que también significa que al menos una parte de cada saliente de enganche en bucle se extiende en un ángulo distinto de cero hacia las hendiduras interrumpidas, hendiduras parciales, hendiduras o hendiduras incompletas. El ángulo que no equivale a cero puede estar en un intervalo de 30 a 90 grados, de 50 a 90 grados, de 60 a 90 grados, de 75 a 90 grados, de 80 a 90 grados, o de 85 a 90 grados. La eficacia de desprendimiento mejorada que se observa para las tiras de ganchos descritas en la presente memoria puede marcarse aún más cuando al menos una parte de cada saliente de enganche en bucle se extiende en una dirección opuesta a la dirección en la que la tira de ganchos se desprende. Por consiguiente, en un artículo absorbente descrito en la presente memoria, al menos una parte de cada saliente de enganche en bucle puede dirigirse hacia la línea central longitudinal del artículo absorbente cuando el artículo absorbente se fija alrededor del cuerpo. En algunas realizaciones, cada elemento de gancho tiene salientes de enganche en bucle que se extienden en varias direcciones (es decir, al menos dos). Por ejemplo, el elemento de gancho puede tener forma de seta, clavo, palmera o T. En algunas realizaciones, el elemento de gancho comprende un vástago con una cabeza de seta (por. ej., con una cabeza ovalada o redonda).
La Fig. 8 ilustra una curva de desprendimiento (es decir, carga en gramos de fuerza frente a la extensión de desprendimiento en pulgadas) de una lengüeta de fijación con una tira de ganchos comparativa que se retira de un bucle tejido. La tira de ganchos comparativa es una tira de ganchos convencional que no tiene ninguna hendidura (es decir, hendiduras interrumpidas, hendiduras parciales, hendiduras completas o hendidura incompletas) en el soporte. En los ejemplos que siguen se ofrecen los detalles de la preparación de la lengüeta de fijación y el método de ensayo. La carga con una extensión corta es muy baja (p. ej., de hasta aproximadamente 0,49 N (50 gramos)) y aumenta a medida que el desprendimiento avanza hasta los picos de fuerza cerca del extremo de la anchura del parche de ganchos. Se obtiene un resultado similar cuando se evalúa el desprendimiento de una tira de ganchos comparativa frente a unos bucles consolidados por extrusión como el material en bucle que se muestra en la Fig. 10.
Las Figs. 8 y 10 ilustran que, para la tira de ganchos convencional, se necesita un aumento sustancialmente constante en la fuerza frente al desprendimiento cuando la tira de ganchos se retira de un material en bucle. La fuerza inicial necesaria para retirar la lengüeta de cierre del artículo de higiene es relativamente baja, lo que puede afectar a la fiabilidad real o percibida de los componentes fijadores. Además, como se necesita aumentar la fuerza hasta que los componentes fijadores estén completamente separados, puede que el usuario no perciba fácilmente la cantidad de fuerza necesaria para separar los componentes fijadores. El usuario también puede experimentar una sensación desagradable si la tira de ganchos se suelta repentinamente del material en bucle.
La Fig. 9 ilustra una curva de desprendimiento (es decir, carga en gramos de fuerza frente a la extensión de desprendimiento en pulgadas) de una lengüeta de fijación con una tira de ganchos según la presente descripción que se retira de un bucle tejido. La tira de ganchos tiene el mismo tamaño que la tira de ganchos comparativa, cuyos resultados se muestran en la Fig. 8; sin embargo, se cortaron 7 hendiduras interrumpidas en el soporte entre algunas filas de elementos de gancho. Había 2 filas de elementos de gancho entre dos hendiduras interrumpidas adyacentes cualesquiera. En los ejemplos que siguen se ofrecen los detalles de la preparación de la lengüeta de fijación y el método de ensayo. La fuerza de desprendimiento es mucho más uniforme desde el principio hasta el final del proceso de desprendimiento y está en un nivel de fuerza superior en comparación con el desprendimiento que se muestra en la Fig. 8. Se obtiene un resultado similar cuando se evalúa el desprendimiento de la tira de ganchos según la presente descripción frente a unos
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-
2010
- 2010-06-21 US US12/819,808 patent/US9138957B2/en not_active Expired - Fee Related
-
2011
- 2011-06-20 ES ES11798693.5T patent/ES2634209T3/es active Active
- 2011-06-20 CN CN201180030889.2A patent/CN102946753B/zh not_active Expired - Fee Related
- 2011-06-20 DK DK11798693.5T patent/DK2582262T3/en active
- 2011-06-20 MX MX2013000096A patent/MX336799B/es active IP Right Grant
- 2011-06-20 WO PCT/US2011/041019 patent/WO2011163101A2/en active Application Filing
- 2011-06-20 JP JP2013516640A patent/JP6128559B2/ja not_active Expired - Fee Related
- 2011-06-20 EP EP11798693.5A patent/EP2582262B1/en active Active
- 2011-06-20 TW TW100121463A patent/TWI562739B/zh not_active IP Right Cessation
- 2011-06-20 BR BR112012032969A patent/BR112012032969B1/pt not_active IP Right Cessation
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Also Published As
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JP2017159051A (ja) | 2017-09-14 |
US8961850B2 (en) | 2015-02-24 |
CN102946753B (zh) | 2015-07-29 |
US10322560B2 (en) | 2019-06-18 |
MX2013000096A (es) | 2013-02-27 |
EP2582262B1 (en) | 2017-05-17 |
EP2582262A2 (en) | 2013-04-24 |
JP6128559B2 (ja) | 2017-05-17 |
US20150164713A1 (en) | 2015-06-18 |
CN102946753A (zh) | 2013-02-27 |
EP2582262A4 (en) | 2014-04-09 |
JP6448702B2 (ja) | 2019-01-09 |
MX336799B (es) | 2016-02-02 |
TWI562739B (en) | 2016-12-21 |
WO2011163101A3 (en) | 2012-05-03 |
DK2582262T3 (en) | 2017-08-14 |
BR112012032969B1 (pt) | 2020-06-09 |
US9138957B2 (en) | 2015-09-22 |
BR112012032969A2 (pt) | 2016-11-22 |
JP2013533770A (ja) | 2013-08-29 |
TW201204286A (en) | 2012-02-01 |
US20110313389A1 (en) | 2011-12-22 |
WO2011163101A2 (en) | 2011-12-29 |
US20130095281A1 (en) | 2013-04-18 |
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