EP2409592A2 - Fastener part and method for manufacturing same - Google Patents

Abstract

The adhesive closing part has a functional layer, which defines a carrier surface (8) and is formed of a fiber system with two line elements (12a-12c,14a,14b) that are connected with each other and form a mesh. Another functional layer has individually formed connecting elements (30,30'). The fiber systems are connected with each other by forming passage points (24a-24d), whose open cross section area is more than 20 percent of the corresponding carrier surface. An independent claim is also included for a method for manufacturing an adhesive closing part.

Description

The invention relates to an adhesive closure part comprising a functional layer defining a carrier surface, formed from a thread system with at least two interconnected and mesh forming line elements, at least one individual formed and / or formable connecting elements having further functional position, formed from an at least partially integrated into the thread system thread system.

Such adhesive closure parts are used in a wide variety of areas, in particular in fastening systems, for example on garments, pieces of luggage, pieces of furniture, panels in the vehicle interior, etc., and are therefore known in a wide variety of designs. Typically, the adhesive closure part is a textile surface fastener with mushroom-shaped interlocking elements and usually made of a plastic material. On a rear side facing away from the connecting elements, the adhesive closure part may have a coating, for example an adhesive layer.

Another application of an adhesive closure member is the attachment of an abrasive article to an abrasive article holder. Out EP 0 781 629 B1 is an abrasive body consisting of an abrasive having, particle-current impermeable layer known which directly or indirectly via an adapter on an abrasive holder work can be fastened, with openings, which penetrate at least the layer having the abrasive, and a Velcro adaptation layer, which is formed gas and particle flow permeable. The apertures are formed as a gas and particle-perforated perforation which is distributed approximately uniformly over the entire surface of the grinding wheel or a part thereof, wherein the individual, the perforations forming apertures communicate with each other and whose distance from each other is chosen so that a nearly stauloser continuous removal of the grinding dust is possible.

An adapter used in this case consists of a Velcro adaptation layer, a foam particle layer and a velor layer, wherein the Velcro adaptation layer facing the abrasive body is penetrated by the perforation. A typical circular grinding wheel has on its back a velor for Ankletten to the grinding plate. By the appropriate arrangement of the perforation of the perforation to each other and with respect to the suction of the sanding plate a nearly stauzy transport of the grinding dust is effected to the suction devices.

Starting from this prior art, the invention has the object to provide an adhesive closure part, which has a simple construction, in particular can be produced in a simple manner, and can be used to attach an abrasive article to an abrasive holder, without hindering the grinding process.

This object is achieved by an adhesive fastener with the features of claim 1 in its entirety. The fact that the thread systems are connected to form passage points whose free cross-sectional area occupies more than 20% of the corresponding support surface, can at the investment or mounting surface the abrasive dust extracted by the abrasive body passes through the adhesive closure part largely unhindered. In particular, the adhesive closure part according to the invention offers the advantage that when attaching an abrasive article to the abrasive article holder, no special alignment of the adhesive closure element with respect to the abrasive article or abrasive article holder has to be selected since the adhesive closure element is dust-permeable over its entire surface, more precisely in the region of the further functional layer is.

The use of the adhesive closure part according to the invention is not restricted to the area of abrasive bodies, but extends to any area in which a fluid passage on a fastening surface is desired and / or compulsory. It is conceivable, for example, the attachment of a sieve used for sewage or exhaust air purification in a fluid-flow area or a filter element used in a hydraulic system. A use in the field of breathable textiles, which are used, inter alia, in the medical or nursing area, is conceivable.

In a preferred embodiment of the adhesive closure part according to the invention, at least one thread system forming a functional layer comprises a series arrangement of at least two line elements extending in a longitudinal direction, wherein the line elements each form a sequence of substantially similar meshes oriented in a transverse direction and mutually offset in the longitudinal direction are arranged, and wherein one or more stitches at least one line element, the respective meshes of the respective adjacent line element by or surround and thus connect to each other. This results in the advantage of a dimensionally stable, easy to produce adhesive closure part and in particular a stable, load-bearing surface. The meshes of the individual line elements may be formed meander-shaped and each having a rectangular contour. Alternatively, the stitches may be loop-shaped or loop-shaped and have an elliptical or circular contour.

In a further preferred embodiment of the adhesive closure part according to the invention, the thread system forming the further functional layer comprises at least one line element extending in the longitudinal direction with a series of substantially similar, transversely oriented stitches which are at least partially separable and / or split to form connecting elements. Particularly preferably, the at least one line element of the further functional layer runs along a corresponding line element in the carrier surface and is connected in a corresponding manner to (an) adjacent line elements. In this way, the further functional position, typically a connecting layer, forming further thread system can be integrated in a simple manner into the thread system forming the carrier layer. A correspondingly designed production method can be carried out in a simple manner, in particular with a weaving or knitting device suitable for the formation of the thread system.

Conveniently, the meshes of adjacent line elements in the longitudinal direction of the same extent and / or order. In this way, a particularly secure and stable connection between the line elements is created. Preferably, the thread system forming the carrier surface has a series arrangement of alternating first and second line elements, wherein the first stitches of the first line elements in the transverse direction have a greater extent than the second stitches of the second line elements. In this embodiment of the adhesive closure part, comparatively firm connection points arise at the intersections between meshes of adjacent line elements, whereby the mesh arrangement is largely fixed in position.

In a preferred embodiment, the adhesive closure part according to the invention has a pattern which repeats in the transverse and / or longitudinal direction at regular intervals and has substantially identically constructed and / or arranged line elements of the thread systems. This results in the advantage of a homogeneous structure over the functional layers or the support surface and consequently homogeneous properties of the adhesive closure part, such as dimensional stability, elasticity, fluid permeability.

Expediently, the functional layer is connected over the entire carrier surface with the further thread system, in other words the adhesive closure part is formed over its entire surface in the manner according to the invention. An elastic or flexible embodiment of the adhesive closure part allows its attachment as a decorative surface on sometimes complicated 3D contours to the cover. The adhesive closure part according to the invention is a particularly soft, extensible, open-pored fabric. The passage openings released by the adhesive closure part may be parallelogram-like, in particular diamond-shaped or rectangular, and / or polygonal-shaped, in particular hexagonal-shaped. In this way, a stable functional layer composite can be ensured with sufficient dimensional stability and fluid permeability of the adhesive closure part.

Advantageously, the adhesive closure part according to the invention consists of a preferably thermoplastic plastic material, in particular polyamide and preferably isotactic polypropylene. Particularly preferably, the plastic material is recyclable. Isotactic polypropylene is particularly well-suited for the formation of hooking elements with mushroom heads. The line elements of the thread systems are typically monofilaments, Multifilaments and / or yarns formed. These can be colored according to a desired application.

The connecting elements of the adhesive closure part according to the invention are typically mushroom-shaped and have hooking heads. Further, it is advantageous to form the connecting elements on one side of the adhesive closure part. Thus, a connector-free rear side of the adhesive closure part is available as a connection surface with a component, such as an abrasive holder. Preferably, an adhesive surface is applied there. However, it is also conceivable to provide a further functional layer with connecting elements on both sides, that is to say on the upper and lower sides of the adhesive closure part.

Fig. 1

eine eine Trägerfläche festlegende Funktionslage eines erfindungsgemäßen Haftverschlussteils;

Fig. 2

die Funktionslage aus Fig. 1 mit einer darin eingebundenen weiteren Funktionslage;

Fig. 3

die Unterseite des Haftverschlussteils aus Fig. 2 in vergrößerter Darstellung;

Fig. 4

eine die Anordnung der beiden die Funktionslagen bildenden Fadensysteme veranschaulichende schematische Zeichnung;

Fig. 5

die Oberseite des Haftverschlussteils aus Fig. 2 und 3;

Fig. 6

ein zu verbesserten Darstellung von Verbindungselementen vergrößerter Ausschnitt der Haftverschlussteiloberseite aus Fig. 5;

Fig. 7

eine Oberseite eines Halbzeuges eines weiteren erfindungsgemäßen Haftverschlussteils mit zwei Funktionslagen; und

Fig. 8

eine Unterseite des Halbzeugs aus Fig. 7.

The invention further comprises a method for producing a closure part according to claim 14. Advantageous variants of the method are given in claims 15 and 16. Further advantages and features of the invention will become apparent from the following description and the figures of the drawing. The features shown in the figures are purely schematic and not to scale. It shows:

Fig. 1

a carrier layer defining a functional position of an adhesive closure part according to the invention;

Fig. 2

the functional position off Fig. 1 with a further functional position incorporated therein;

Fig. 3

the underside of the adhesive closure part Fig. 2 in an enlarged view;

Fig. 4

a schematic diagram illustrating the arrangement of the two thread systems forming the functional layers;

Fig. 5

the top of the adhesive closure part Fig. 2 and 3 ;

Fig. 6

a for enlarged representation of fasteners enlarged section of the adhesive fastener upper side Fig. 5 ;

Fig. 7

an upper side of a semifinished product of a further adhesive closure part according to the invention with two functional layers; and

Fig. 8

an underside of the semifinished product Fig. 7 ,

Fig. 1 shows a functional layer 2, which defines a in a longitudinal direction 4 and in a transverse direction 6 extending support surface 8. In the plane of the support surface 8, a thread system 10 is arranged, which comprises first line elements 12a, 12b, 12c, 12d and second line elements 14a, 14b, 14c. The first and second line elements 12a to 12d, 14a to 14c are arranged substantially parallel to one another in the longitudinal direction 4 (sequence 12a, 14a, 12b, 14b, 12c, 14c, 12d). The first line elements 12a to 12d are arranged in the thread system 10 such that they each have a sequence of first stitches 16a, 16a ', 16a "of the first line element 12a, first stitches 16b, 16b', 16b" of the first line element 12b, etc. train. The first stitches 16a, 16a ', 16a "are of substantially similar construction and each extend in the transverse direction 6. As indicated by a line 18 for the first line element 12a, the first stitches 16a to 16a" extend from the line 18 in the transverse direction 6 and again back to the line 18, whereby a rectangular contour is defined or a rectangular course through the respective first stitch 16a to 16a "is partially passed through. The first line elements 12a to 12d are arranged without offset in the longitudinal direction 4, so that in the transverse direction 6 the first loop 16a of the first line element 12a is followed by the first loop 16b of the adjacent first line element 12b.

The second line elements 14a to 14c each have a succession of second stitches 20a, 20a ', 20a "of the second line element 14a, second stitches 20b, 20b', 20b" of the second line element 14b, and so on. The second meshes 20a to 20b "are each of identical design and, since the second line elements 14a to 14c are arranged without offset in the longitudinal direction 4 relative to one another, are arranged directly following one another in the transverse direction 6. The connection or interweaving of the first and second line elements 12a to The second loop 20a extends through the first loop 16a of the first line element 12a and is guided around the first loop 16b of the adjacent line element 12b; in other words, the first loop 16b passes through the first loop 16b The first loop 20a at two connecting points 22a, 22b binds and stabilizes the adjacent first line elements 12a, 12b in their respective positions Mesh 20a in the transverse direction 6 lower a ls the corresponding extension of the first stitches 16a and 16b.

The first line elements 12a to 12d are each formed from a monofilament, the second line elements 14a to 14d each formed from a multifilament. The thread thickness and the mesh width of the first and second line elements 12a to 12d, 14a to 14c is selected such that free passage points 24a, 24b, 24c arise between the first and second line elements 12a to 12d, 14a to 14c, whereby the thread system 10 or the functional layer 2 is fluid-permeable. The free passage or cross-sectional areas of the passages 24a to 24c represent well over 20% of the support surface 8 or occupy this.

In Fig. 2 is shown as in the thread system 10 from Fig. 1 another thread system of third line elements 26a, 26b, 26c integrated or is woven. The third line elements 26a to 26c each follow the course of a first line element 12a, 12b, 12c and are connected to each other via second line elements 14a, 14b. Corresponding to the first line elements 12a to 12c, the third line elements 26a to 26c have third stitches 28a, 28a 'which respectively follow the course of a first stitch 16a, 16a' and at regular intervals of two stitches 28a and 16a, respectively two connecting elements 30, 30 'extending to the upper side (not shown) are separated.

In the Fig. 3 and 4 the regular arrangement of the line elements 12a to 12d, 14a to 14d, 26a to 26c and the consequent formation of a pattern is shown. The first line elements 12a, 12b, 12c and the second line elements 14a, 14b form first stitches 16a, 16a ', 16a "and second stitches (not labeled), which are arranged in the longitudinal direction 4 as well as in the transverse direction 6 regularly The third line elements 26a to 26c following the course of the first line elements 12a to 12c are separated both longitudinally 4 and transversely 6 at every other of the third stitches (not labeled) to form connecting elements 30, 30 '.

In the exemplary embodiment shown and described, the third line elements 26a to 26c, viewed in the longitudinal and transverse directions 4, 6, are separated into connecting elements on every second third loop, so that larger passage locations 24a are established at these points in comparison to passage locations 24b for third thirds not severed , Further passages 24c and 24d are formed by the arrangement of the line elements 12a to 12d, 14a to 14c, 26a to 26c and form a corresponding pattern. Thus, a sequence repeated in the transverse direction 6 following a sequence of two first line elements 12a, 12b and two second line elements 14a, 14b and in the longitudinal direction 4 after two stitches 16a, 16a 'or 20a, 20a' or 28a, 28a 'is repeated Episode. This pattern unit repeats along the support surface 8 in the longitudinal and transverse directions 4, 6 and is on both in the Fig. 3 and 4 shown underside as well as on the in Fig. 5 visible top visible. Consequently, the support surface 8 has a homogeneous dimensional stability and permeability to fluids, such as a Schleifstaubabsaugung on.

Fig. 5 shows an upper side of an adhesive closure part 32 shown in the preceding figures. From the carrier surface 8 spanned in the longitudinal and transverse directions 4, 6, connecting elements 30a, 30a ', 30a "of the third line element 26a and connecting elements 30b, 30b', 30b" of the third line element protrude 26b. The third line elements 26a, 26b are connected to each other according to the first line elements (not designated) by second line elements 14a. The connecting elements 30a to 30b "each have a mushroom-shaped thickening at the free end and form a hooked hook-and-loop fastener A counterpart for the adhesive closure part 32 may be, for example, a velor or fleece Fig. 5 is the regularity of the connecting elements 30a to 30b "clearly visible, wherein in the longitudinal direction 4 every second third loop 28a, 28a" and in the transverse direction 6 also every second, ie, never immediately adjacent third stitches 28a and 28b, separated and connecting elements 30a, 30a 'is formed.

In the example shown, a monofilament, in particular of isotactic polypropylene, has been used for the third line elements 26a to 26c, but it is also conceivable to provide a material that ensures a grinding function for forming the third line elements 26a to 26c and in particular the connecting elements 30a to 30b. The connecting elements 30a to 30b "as in Fig. 6 shown in detail, may themselves be designed as abrasive, but also in addition to a function of abrasive function elements have been applied to the support surface 8. Fig. 6 The mushroom-shaped thickenings are easily removable at the free end of the connecting elements 30a to 30a "and the row-shaped arrangement of the substantially vertically protruding from the support surface 8 connecting elements 30a to 30a".

Fig. 7 and 8th show a semifinished product 34, by means of which a further adhesive closure part can be formed. The intermediate product or semifinished product 34 is characterized by a loop-like manner on an in Fig. 7 shown upper side projecting third line elements 26 ', 26 "and third stitches 28', 28" from. From the in Fig. 8 shown underside of the semifinished product 34 is clearly visible that the functional layer 2 'forming thread system 10' is formed entirely of multifilaments. The passage points 24 ', 24 "allow a good fluid passage through the functional layer 2' and the semi-finished product 34 or an adhesive closure part formed therefrom.

The above-described, very air-permeable adhesive closure part 32 can also be used in particular in the motor vehicle sector and preferably in the area of the seat part upholstery of motor vehicles. In particular, the adhesive closure member 32 is adapted to cover cushioning materials of the vehicle seat to the outside; Nevertheless, there is still the possibility of air flow through the so far open stitches of the adhesive closure part, which in addition to a seat comfort increase also opens up the possibility to effectively air-condition the seat, that is, to optimally realize a heating and / or cooling air duct. The fact that the adhesive closure part can be easily detached from the other upholstery cover or upholstery materials due to its closure elements, there is also a possibility of exchange for a correspondingly designed new-adhesive closure part.

Claims (16)

Adhesive closure part (32) comprising: - a functional layer (2, 2 ') defining a carrier surface (8), formed from a thread system (10, 10') with at least two line elements (12a - 12d) forming meshes (16a - 16b ", 20a - 20a") , 14a-14c), - at least one individual formed and / or formable connecting elements (30a - 30b "; 30, 30") having further functional position, formed from an at least partially in the thread system (10, 10 ') integrated further thread system, - characterized in that the thread systems (10, 10 ') to form passageways (24a - 24d; 24', 24 ") are interconnected, occupies the free cross-sectional area more than 20% of the corresponding support surface (8). 2. Adhesive closure part according to claim 1, characterized in that a thread system (10, 10 ') forming a functional layer (2, 2') comprises a series arrangement of at least two line elements (12a-12d, 14a-14c) extending in a longitudinal direction (4) , 26a - 26c, 26 ', 26 "), wherein the line elements (12a - 12d, 14a - 14c, 26a - 26c, 26', 26") each have a series of substantially similar, directed in a transverse direction (6) Meshes (16a-16b ", 20a-20b", 28a-28b, 28 ', 28 ") and are arranged offset to one another in the longitudinal direction (4), and one or more stitches (16a-16b", 20a-20b " , 28a - 28b, 28 ', 28 ") of at least one line element (12a - 12d, 14a - 14c, 26a - 26c, 26', 26"), the corresponding stitches (16a - 16b ", 20a - 20b", 28a - 28b , 28 ', 28 ") of the respectively adjacent line element (12a-12d, 14a-14c, 26a-26c, 26', 26"). Adhesive closure part according to one of the preceding claims, characterized in that the thread system forming the further functional layer has at least one line element (26a-26b, 26 ', 26 ") extending in the longitudinal direction (4) with a sequence of substantially similar, in the transverse direction (6). directed meshes (28a - 28b, 28 ', 28 ") which are at least partially, in particular regularly, for the formation of connecting elements (30a - 30b", 30, 30') separable and / or separated. 3. Adhesive closure part according to claim 2 and 3, characterized in that the at least one line element (26-26b, 26 ', 26 ") of the further functional layer follows the course of a corresponding line element (12a-12d) in the carrier surface (8) and via stitches (16a - 16b ", 20a - 20b"). Adhesive closure part according to one of the preceding claims, characterized in that the stitches (16a - 16b ", 20a - 20b") of adjacent line elements (12a - 12d, 14a - 14c) in the longitudinal direction (4) and / or in the transverse direction (6) substantially have the same extension and / or order Adhesive closure part according to one of the preceding claims, characterized in that the thread system (10, 10 ') forming the carrier surface (8) comprises a series arrangement of alternating first and second line elements (12a - 12d, 14a - 14c), the first meshes ( 16a-16b ") of the first line elements (12a-12d) in the transverse direction (6) have a greater extent than the second stitches (20a-20b") of the second line elements (14a-14c). Adhesive closure part according to one of the preceding claims, characterized by a transverse (6) and / or longitudinal direction (4) in regular Repetitive pattern of substantially identically formed and / or arranged line elements (12a - 12d, 14a - 14c, 26a - 26c) of the thread systems (10). Adhesive closure part according to one of the preceding claims, characterized in that the passage points (24a - 24d, 24 ', 24 ") parallelogram-like, in particular diamond-shaped or rectangular, and / or polygonal, in particular hexagon-shaped. Adhesive closure part according to one of the preceding claims, characterized in that the adhesive closure part (32) is made of a preferably thermoplastic plastic material, in particular polyamide or preferably isotactic polypropylene. Adhesive closure part according to one of the preceding claims, characterized in that the line elements (12a - 12d, 14a - 14c, 26a - 26c, 26 ', 26 ") are formed as monofilaments, multifilaments and / or yarns. Adhesive closure part according to one of the preceding claims, characterized in that the connecting elements (30a - 30b ", 30, 30 ') at least partially have hooking heads and / or are mushroom-shaped. Adhesive closure part according to one of the preceding claims, characterized in that the connecting elements (30a - 30b ", 30, 30 ') are arranged or can be arranged on one side of the adhesive closure part (32). Use of an adhesive closure part according to one of the preceding claims for fastening an abrasive article to an abrasive article holder and / or for forming and arranging an abrasive article. Method for producing an adhesive closure part (32), comprising a functional layer (2, 2 ') defining a carrier surface (8), formed from a thread system (10, 10') with at least two interconnected and meshes (16a - 16b ", 20a - 20a) 20b ") forming line elements (12a - 12d, 14a - 14c), and at least one individual formed and / or formable connecting elements (30a - 30b", 30, 30 ') having further functional position, formed from an at least partially in the thread system (10 , 10 ') further thread system, characterized in that the thread systems (10, 10') to form passage points (24a - 24d, 24 ', 24 ") are interconnected such that their free cross-sectional area more than 20% of the corresponding Carrier surface (8) occupies. Method according to claim 14, characterized in that stitches (28a-28b, 28 ', 28 ") provided on at least one line element (26a-26c, 26', 26") of the further thread system are separated and connecting elements (30a-30b ", 30th) , 30 ') are formed. A method according to claim 15, characterized in that the mesh (28a - 28b, 28 ', 28 ") sheared and the free ends of the separated stitches (28a - 28b, 28', 28") are melted to form mushroom-like thickenings, in particular by singeing ,

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