CN102125340B - Velcro component for foam and foam comprising the same - Google Patents

Abstract

The present invention is a Velcro assembly for foaming materials and a foaming material comprising the Velcro assembly. The Velcro assembly for foaming materials comprises a base material on which two side walls extending along the longitudinal direction are formed; a hook piece that is arranged between the two side walls and bonded to the base material and is roughly fishbone-shaped, and has an elongated central rib and a plurality of hooking portions extending outward from both sides of the central rib and spaced apart from each other, and a plurality of hook bodies are formed on each hooking portion; and a magnetic material layer arranged between the base material and the hook piece. The Velcro assembly of the present invention has a unique function of being able to bend laterally. Another aspect of the present invention provides a foaming material comprising a Velcro assembly that can bend laterally.

Description

Velcro component for foam and foam comprising the same

technical field

The present invention relates to a hook and loop component for foam that can be bent sideways at will, and a foam including the stick and buckle component, such as a foam seat cushion.

Background technique

The detachable hook-and-loop fasteners, such as Velcro, are widely used in various fields because of their easy bonding/detachment. Two things are separably combined with each other. The existing Velcro structure 1 applied on the car seat cushion or furniture seat cushion generally comprises a substrate 2 as shown in Figure 1, which is usually made of a material that allows foaming substances to penetrate into the interstices of its fibrous tissue. , for example, non-woven or fiber cloth. The Velcro structure also includes a magnetic substance layer 3 coated on the substrate 1 and a hook strip 4 adhered to the magnetic substance layer 3 . A plurality of clasps 5 are formed on the clasp strip 4 and the width of the clasp strip 4 is smaller than that of the substrate 2 . Two side walls 6 are arranged on the base material 2 along both sides of the buckle belt 4 and its height is greater than the height of the buckle 5 on the buckle belt 4, in order to prevent the foaming process of the seat cushion The foaming substance penetrates between the clasps 5 .

Another existing hook and loop structure 1' applied on foamed seat cushions of automobiles or furniture foamed cushions, as shown in Fig. In order to avoid the setting of the protective side wall, the protective layer 7 that can cooperate with the buckle 5 of the buckle belt 4 is directly pasted on the buckle belt 4, so as to prevent the foaming substance from penetrating into the buckle during the foaming process of the seat cushion. Effect between hook 5.

Although these existing hook and loop structures applied to foams such as automobile foam seat cushions or furniture foam seat cushions can achieve the effect of bonding the seat cover to the seat cushion, they also have some disadvantages and effects on the limit. For example, the combination between the existing hook and loop structure and the seat cushion applied to the foam seat cushion of the car or the foam seat cushion of the furniture only relies on the interlocking of the foam material penetrated into the substrate fiber to provide the bonding force, so , Often due to the lack of bonding force between the Velcro structure and the seat cushion, the problem that the Velcro structure and the seat cushion are separated occurs.

In addition, because the existing hook and loop structure does not have the ability to bend laterally, the existing hook and loop structure can only be used on seat cushions with linear adhesive grooves. If there is no joint groove, it cannot be used directly as desired, but must be applied to a seat cushion with a curved adhesive groove through additional processing. For example, it is necessary to develop a die having the same curvature as the bonding groove on the seat cushion to cut the hook and loop structure into a hook and loop structure with a specific curvature. However, this method is not economical, because a set of cutting dies must be opened for a specific bonding groove curvature. Multiple sets of cutting dies can handle it. Therefore, the traditional hook and loop structure has its limitations in its application.

Therefore, there is a strong demand in the seat cushion manufacturing industry for a hook and loop structure that has a stronger bonding force with the foam and can be bent sideways at will to be suitable for any adhesive groove on the seat cushion.

Contents of the invention

In view of the disadvantages and application limitations of the above existing devices, an object of the present invention is to provide a hook and loop fastener assembly for foam that can be strongly combined with the foam and can be bent laterally arbitrarily. Another object of the present invention is to provide a foam comprising the fastening tape assembly of the present invention.

According to one aspect of the present invention, there is provided a fastening tape assembly for foam, which comprises:

A substrate with lateral stretch/compression properties, on which two side walls extending parallel to the longitudinal direction and spaced apart from each other are formed;

A substantially fishbone-shaped clasp, which is arranged between the two side walls of the substrate and adhered to the upper surface of the substrate, the clasp has an elongated shape extending along the longitudinal direction The central rib and a plurality of hooking portions extending outward from both sides of the central rib and spaced apart from each other along the longitudinal direction, each hooking portion has a plurality of hook bodies formed on the upper surface; and

A layer of magnetic material disposed between the substrate and the clasp.

According to another aspect of the present invention, there is provided a fastening tape assembly for foam, which comprises:

A generally herringbone clasp, which has an elongated central rib extending along the longitudinal direction and a plurality of hooks extending outward from both sides of the central rib and spaced apart from each other along the longitudinal direction The upper surface of each hooking part is formed with a plurality of hook bodies;

a laterally extensible/compressible substrate having substantially the same herringbone shape as the hook member and disposed beneath and bonded to the hook member; and

A protective layer, which has substantially the same fishbone shape as the hook member and is covered on the hook member, and a magnetic substance layer is coated on the outer surface of the protective layer;

Wherein the base material, the clasp and the protective layer are bonded together along the periphery of the hooking portion, and a perforation line is provided on the protective layer near the inner edge of the bonding place.

According to another aspect of the present invention, a foam is provided, which comprises:

a foam; and

A hook and loop fastener assembly for foam at least as described above.

The beneficial technical effects of the present invention are: the hook and loop fastener assembly of the present invention can be bent laterally at will; For foams with adhesive grooves of different bending radians and different bending directions, the hook and loop fastener assembly of the present invention can also be used directly without any additional processing or cutting. Therefore, the surface fastener assembly for foams of the present invention is very industrially applicable.

Description of drawings

The above-mentioned and other features and advantages of the present invention can be more clearly and specifically understood from the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings, wherein:

Fig. 1 is a schematic cross-sectional view of a conventional hook and loop fastener assembly used for foam seat cushions.

Fig. 2 is a schematic cross-sectional view of another conventional hook and loop assembly used for foam seat cushions.

FIG. 3 is a schematic perspective view of a hook and loop fastener assembly according to an embodiment of the present invention.

FIG. 4 is an end view of the hook and loop fastener assembly shown in FIG. 3 .

FIG. 5 is a schematic perspective view of a hook and loop fastener assembly according to another embodiment of the present invention.

FIG. 6 is a cross-sectional view of the hook and loop fastener assembly shown in FIG. 5 .

FIG. 7 is a schematic perspective view of a variation example of the hook and loop fastener assembly shown in FIG. 5 .

Fig. 8 is a partial sectional view of a seat cushion foam molding mold.

Fig. 9 is a schematic perspective view of a seat cushion including the hook and loop fastener assembly of the present invention.

Fig. 10 is a schematic top view showing that the conventional hook and loop fastener assembly for foam seat cushions of the present invention can be bent laterally.

Detailed ways

The hook and loop fastener assembly for a seat cushion of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 3 is a schematic perspective view showing a hook and loop fastener assembly 10 according to a preferred embodiment of the present invention. FIG. 4 is a schematic cross-sectional view of the hook and loop fastener assembly 10 shown in FIG. 3 . As shown in the figure, the hook and loop fastener assembly 10 of the present invention includes a base material 11 which has two side walls 13 extending parallel to each other along the longitudinal direction and spaced apart from each other and side wings 14 extending outward from the side walls 13 . In this embodiment, the substrate 11 is made of foam or non-woven or fiber cloth. In other embodiments, the substrate 1 can be made of any material that can be stretched and compressed laterally and can allow the foaming substance to penetrate into its fibers and combine with the foaming substance. A magnetic substance layer 15 is coated on the bottom surface of the central recess 12 for fixing the hook and loop fastener assembly 10 in the seat cushion foam mold during the foam molding of the seat cushion.

The hook and loop fastener assembly 10 further includes a substantially herringbone-shaped clasp 20 disposed between the two sidewalls 13 of the substrate 11 . The clasp 20 includes a central rib 21 extending in the longitudinal direction and a plurality of hooking portions 22 extending outward from both sides of the central rib 21 along the length of the central rib 21. The portions 22 are spaced apart from each other by a distance. A plurality of hook bodies 23 are formed on the upper surface of each hooking portion 22 and the bottom surface of each hooking portion 22 and the bottom surface of the central rib 21 are adhered to the central depression 12 of the substrate 11 . As shown in Figure 4, the central rib 21 has a width W1 and a height D3 measured from the bottom surface of the substrate 11 to the top of the central rib 21, wherein the rib height D3 must be greater than the width W1 of the central rib, i.e. D3>W1, to Appropriate lateral flexibility of the clasp member 20 is provided. This dimensional feature of the central rib cooperates with the structural feature formed by the design of a distance between the hook parts 22, which can provide the unique laterally bendable surface of the hook and loop fastener assembly 10 of the present invention. characteristic. In addition, the height D3 of the central rib 21 is less than or equal to the height D1 of the hook body 23 measured from the bottom surface of the substrate 11, and the height D2 of the substrate side wall 13 measured from the bottom surface of the substrate is larger than the hook body 23. The height D1 is used to provide sufficient protection for the hook body 23 during the foaming process of the seat cushion, and prevent the foaming substance from penetrating between the hook body 23 .

In the embodiment shown in FIG. 3 , a plurality of perforations 16 are provided on the substrate flank 14 at positions corresponding to the hooking portions 22 of the hook members 20 to allow foaming during the foaming process of the seat cushion. The foam material enters these perforations 16 to produce a fixing effect similar to that of a rivet, and improve the extra mechanical bonding force between the hook and loop fastener assembly 10 and the seat cushion, so that the hook and loop fastener assembly 10 and the seat cushion have a stronger combination . In addition, as shown in FIG. 3 , the portion corresponding to the distance between the hooking portions 22 of the hook member 20 on the side flap 14 of the substrate can be cut off to improve the side bending ability of the whole hook and loop fastener assembly 10 .

Next, a hook and loop fastener assembly 50 according to another preferred embodiment of the present invention will be described with reference to FIGS. 5 and 6, wherein FIG. 5 is a perspective view of the hook and loop assembly 50 and FIG. sectional view.

As shown in the figure, in this embodiment, the hook and loop fastener assembly 50 mainly includes a herringbone-shaped hook member 60, a substrate 51 which is arranged under the hook member 60, and a protective layer 70 which is arranged above the clasp 60 . In this embodiment, the base material 51 preferably has substantially the same fishbone shape as the clasp 60 . In addition, the base material 51 of this embodiment is the same as the base material 11 of the embodiment of FIG. 3 made of foam or non-woven fabric or fiber cloth, but others have laterally stretchable and compressible properties and can be combined with foaming substances materials can also be used.

In this embodiment, the structure of the clasp 60 is substantially the same as that of the clasp 20 shown in FIG. The length of the central rib 61 extends outward from two sides of the central rib 61 with hooking portions 62 , and two adjacent hooking portions 62 are spaced apart from each other by a distance. A plurality of hook bodies 63 are formed on the upper surface of each hooking portion 62 , and the bottom surface of each hooking portion 62 and the bottom surface of the central rib 61 are bonded to the substrate 51 .

As shown in FIG. 5 , the protection layer 70 has substantially the same herringbone shape as that of the hook member 60 to substantially cover the hook member 60 . The protective layer 70 is preferably made of the same material as the substrate 51, such as foam or non-woven or fiber cloth, but other materials with laterally stretchable and compressible properties can also be used. Or, the material of the protective layer 70 can be different from the base material 51, for example, the protective layer 70 is made of non-woven fabric, while the base material 51 is made of foam.

As shown in Figure 6, the base material 51, the clasp 60 and the protective layer 70 are bonded together along the periphery of each hook portion 62 of the clasp 60, for example, by adhesive bonding or thermal fusion. Bonding is performed in a similar manner to achieve a sealing effect, thereby providing protection for the hook body 63 during foam molding of the seat cushion and preventing foaming substances from penetrating between the hook body 63 . A magnetic substance layer 72 is coated on the upper surface of the protective layer 70 for fixing the hook and loop fastener assembly 50 in the seat cushion foam mold during the foam molding of the seat cushion. In addition, the inner edge of the protective layer 70 is provided with a perforated line 74 (see FIG. ), so that the protective layer 70 can be torn off after the foam molding process to expose the hook body 63 of the clasp 60 .

Fig. 7 is a schematic perspective view of another hook and loop fastener assembly 50', which is a variation of the hook and loop fastener assembly 50 shown in Fig. 5 . In this modified example, except that the hook and loop fastener assembly 50' has substantially the same structure as the hook and loop fastener assembly 50, the base material 51 further includes a wing portion 52 at a portion corresponding to each hook portion 62 of the hook member. And the perforations 54 provided on the side wings are used to allow the foaming substance to enter these perforations during the foaming process of the seat cushion, so as to provide an additional mechanical bonding force between the hook and loop fastener assembly 50' and the seat cushion.

Next, another aspect of the present invention, a seat cushion 80 including the hook and loop fastener assembly of the present invention, will be described with reference to FIGS. 8 and 9 . As shown in Figure 8, in the foaming mold 90 that is used for foam molding a seat cushion, a magnet 91 is arranged on the position where the hook and loop fastener assembly is scheduled to be arranged, and the hook and loop fastener assembly 10 of the present invention uses the hook body 23 The way facing the foaming mold 90 is placed at the position where the magnet 91 is provided in the mold 90, and the magnetic attraction between the magnetic substance layer 15 and the magnet 91 in the hook and loop fastener 10 will be placed during foam molding. The hook and loop fastener assembly 10 remains in place. After the foam molding process, the seat cushion 80 with the hook and loop fastener assembly of the present invention as shown in FIG. 9 can be completed. Although, in this embodiment, the seat cushion 80 is used as an example to illustrate that the hook and loop fastener assembly of the present invention can be applied to a foam seat cushion, the inventive hook and loop fastener assembly can actually be applied to any On the foam made by the manufacturing method.

The adhesive tape assembly for foam of the present invention includes unique structural features such as the herringbone-shaped clasp and the substrate that can be stretched/compressed laterally, making the adhesive tape of the present invention The buckle component can achieve the effect that the existing traditional hook and loop components cannot achieve, that is, it can be bent sideways at will, as shown in FIG. 10 . This lateral bending is not available in the traditional hook and loop fastener components, and it is also an effect that cannot be achieved by the traditional hook and loop fastener components. Because the hook and loop fastener assembly used on the foam of the present invention has unique lateral curvature, the hook and loop fastener assembly of the present invention is not only applicable to foams with linear adhesive grooves, but also for For foams with adhesive grooves of different bending radians and different bending directions, the hook and loop fastener assembly of the present invention can also be used directly without any additional processing or cutting, as shown in FIG. 9 . Therefore, the surface fastener assembly for foams of the present invention is very industrially applicable.

Although the hook and loop fastener assembly for foam of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings, this does not mean that the present invention is limited to the above description and accompanying drawings structure shown. In fact, under the principle and spirit taught by the above disclosure, the present invention can have various modifications and variations. For example, in the above-mentioned embodiments, the hooking portion of the herringbone-shaped clasp extends from the central rib to both sides in a manner symmetrical to the central rib, but in other implementations, the central rib The hooking portions on both sides of the rib can be arranged in an asymmetrical interleaving manner. In addition, in the above-mentioned embodiments, the shapes of the hooking parts of the clasp are respectively rectangular and trapezoidal, but other shapes of the hooking parts can also be used, for example, the hooking parts can also be half round shape. All these and other possible variations are within the true scope of the invention as defined by the following claims.

Claims (14)

1. a magic tape assembly that is used for the foaming thing is characterized in that, comprises:

But the ground of a lateral extension/compression is formed with two sidewalls that extend abreast and be spaced apart from each other along longitudinally on it;

One roughly becomes the buckling piece of herring-bone form, it is arranged between two sidewalls of ground and is bonded on the upper surface of ground, this buckling piece has a longilineal central rib of extending along longitudinally and a plurality of both sides from central rib and stretches out and prolonging the hooked part that longitudinally is spaced apart from each other, and the upper surface of each hooked part all is formed with a plurality of coupler bodies; And

One is arranged on the magnetic material layer between ground and the buckling piece.

2. the magic tape assembly for the foaming thing according to claim 1 is characterized in that, this central rib has a width W 1 and and measures height D3 to the central rib top and D3 from the bottom surface of ground〉W1.

3. the magic tape assembly for the foaming thing according to claim 1 is characterized in that the sidewall of this ground has a height that measures from the bottom surface of ground, the height that it measures from the bottom surface of ground greater than the coupler body of this buckling piece.

4. the magic tape assembly for the foaming thing according to claim 1 is characterized in that, this ground is to make with the material that can combine with foaming substance.

5. the magic tape assembly for the foaming thing according to claim 4 is characterized in that, it is continuous that this material that can combine with foaming substance comprises bubble, adhesive-bonded fabric and fiber cloth.

According to claim 1 for the foaming thing the magic tape assembly, it is characterized in that, this ground further comprises two flanks that laterally extend outwardly out from the two side respectively, and the position corresponding with the hooked part of buckling piece forms perforation on this flank.

7. the magic tape assembly for the foaming thing according to claim 6 is characterized in that, the flank of this ground with the hooked part of buckling piece between the corresponding position of spacing be formed with cut portion.

8. a magic tape assembly that is used for the foaming thing is characterized in that, comprises:

One roughly becomes the buckling piece of herring-bone form, it has a longilineal central rib of extending along longitudinally and a plurality of both sides from central rib and stretches out and prolonging the hooked part that longitudinally is spaced apart from each other, and the upper surface of each hooked part all is formed with a plurality of coupler bodies;

But the ground of a lateral extension/compression, it has the herringbone form identical with this buckling piece and is arranged on this buckling piece below and bonding with this buckling piece; And

One protective layer, it has the herringbone form identical with this buckling piece and is coated over this buckling piece top, and reach a magnetic substance layer and be applied on the outer surface of this protective layer,

Wherein this ground, buckling piece and protective layer be periphery along hooked part be bonded together and on protective layer the inner edge near the bonding place perforation line is set;

But described magic tape assembly can optionally carry out lateral thrust owing to comprised the ground of the buckling piece lateral extension/compression of described herring-bone form.

9. the magic tape assembly for the foaming thing according to claim 8 is characterized in that, this central rib has a width W 1 and and measures height D3 to the central rib top and D3 from the bottom surface of ground〉W1.

10. the magic tape assembly for the foaming thing according to claim 8 is characterized in that, this ground is to make with the material that can combine with foaming substance.

11. the magic tape assembly for the foaming thing according to claim 10 is characterized in that it is continuous that this material that can combine with foaming substance comprises bubble, adhesive-bonded fabric and fiber cloth.

12. the magic tape assembly for the foaming thing according to claim 8 is characterized in that this protective layer is to use identical material to make with this ground.

13. the magic tape assembly for the foaming thing according to claim 8 is characterized in that, this ground further comprises flank part and is opened in perforation on the flank part in the part corresponding with the hooked part of buckling piece.

14. a foaming thing is characterized in that, comprises:

One foaming body; And

At least one be incorporated on this foaming body as among the above-mentioned claim 1-13 arbitrary described for the foaming thing the magic tape assembly.

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