CN217374252U - An embedded structure hook and loop - Google Patents

Abstract

The utility model discloses an bury formula structure thread gluing, include: a thread gluing body; the silk fabric covers the surface of the thread gluing body; the special-shaped section is connected to the lower surface of the thread gluing body. The special-shaped section adopts an I-shaped special-shaped section, and a round hole is formed in a middle vertical plate of the I-shaped special-shaped section. The force of the hook-and-loop fastener separating from the foam is improved by utilizing the shearing force generated by the combination of the H-shaped cavity and the foam and the adhesive force between the bottom surface and the foam after the embedded structure hook-and-loop fastener is foamed, and the problem that the hook-and-loop fastener is easy to separate from the foam in the foaming process of the common hook-and-loop fastener is solved. Meanwhile, the mode that the I-shaped special-shaped section is provided with the round hole is adopted, so that the phenomenon that the pulling-out force between the thread gluing and the foam is reduced due to air trapping generated when the thread gluing is foamed in the mold is avoided.

Description

An embedded structure hook and loop

technical field

The utility model relates to the technical field of velcro, in particular to an embedded structure velcro.

Background technique

If the car seat cover is not cleaned in time after long-term use, the interior environment of the car will be very dirty or even the cover will be damaged, which will bring great inconvenience to passengers. Therefore, it is necessary to develop a detachable car seat cover.

At present, if the car seat cover in the market wants to achieve the detachable function, the method of bonding the cover and the foam is to use the method of velcro and woven pull tape, but the bonding strength of the foam between the velcro and the foam is weak, resulting in Velcro is easy to release the foam under the action of external force. This kind of problem greatly limits the feasibility of the research on the detachable technology of the protective cover.

SUMMARY OF THE INVENTION

The purpose of the utility model is to solve the technical problem that the adhesive strength of the foam between the velcro and the foam is weak, which causes the velcro to easily break away from the foam under the action of external force, and provides an embedded structural velcro.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions to realize:

An embedded structural hook and loop fastener, comprising:

Velcro body 1;

The silk cloth 2 is covered on the surface of the velcro body 1;

The I-shaped segment 3 is connected to the lower surface of the velcro body 1 , and a circular hole 4 is formed on the vertical plate in the middle of the I-shaped segment 3 .

Compared with the prior art, the beneficial effects of the present utility model are:

The utility model provides an embedded structural velcro, which utilizes the shear force generated by the combination of the I-shaped cavity and the foam and the adhesive force between the bottom surface and the foam to improve the force of the velcro from the foam;

The embedded structure velcro provided by the utility model adopts the method of punching round holes in the I-shaped segment, so as to avoid air trapping when the velcro is foamed in a mold, thereby reducing the pull-out force between the velcro and the foam. Phenomenon.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a schematic diagram of an I-shaped segment structure velcro structure;

Fig. 2 is an exploded view of the velcro structure of the I-shaped segment structure;

Figure 3 is a schematic diagram of a barb structure hook and loop fastener structure;

In the above picture: 1. Velcro body, 2. Silk cloth, 3. I-shaped segment, 4. Round hole, 5. Barb.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

Referring to FIG. 1 and FIG. 2 , the present embodiment provides an embedded structural hook and loop fastener, including:

The velcro body 1 adopts the existing velcro structure, and the length of the single segment of the velcro body 1 is 25 mm and 11.2 mm in width;

The silk cloth 2 is covered on the surface of the velcro body 1;

The I-shaped segment 3 is connected to the lower surface of the hook and loop fastener body 1 .

The I-shaped segment 3 is connected to the hook and loop fastener body 1 by gluing; or the I-shaped hook and loop fastener is extruded integrally;

A circular hole 4 with a diameter of 5 mm is opened on the middle vertical plate of the I-shaped section 3 .

The technical principle of an embedded structure hook and loop provided by this embodiment:

The hook and loop fastener is applied to the hook and loop fastener at the bonding end of the car seat skin and the foam. The I-shaped segment 3 is added on the basis of the existing hook and loop fastener. After foaming, the combination of the I-shaped cavity and the foam is used to generate The shear force and the adhesion between the bottom surface and the foam can improve the force of the velcro from the foam, and solve the problem of easy detachment from the foam during the use of ordinary velcro foam.

At the same time, the circular hole 4 is opened in the I-shaped segment 3, so as to avoid the phenomenon of trapping air when the velcro is foamed in the mold, thereby reducing the pull-off force between the velcro and the foam. After the air is trapped in the I-shaped cavity, the acid ether material cannot flow into the I-shaped cavity, and the foam after foaming shows that there is no foam in the I-shaped cavity, and the shear force to prevent the velcro from the foam will be greatly reduced. Small. The circular hole 4 with a diameter of 5 mm is opened on the vertical surface of the I-shaped section 3 to connect the spaces on both sides, which solves the problem of trapped air caused by the shape of the special-shaped hook and loop.

Embodiment 2

Referring to FIG. 3, the present embodiment provides an embedded structural velcro, including:

The velcro body 1 adopts the existing velcro structure, and the length of the single segment of the velcro body 1 is 25 mm and 11.2 mm in width;

The silk cloth 2 is covered on the surface of the velcro body 1;

The special-shaped segment is connected to the lower surface of the hook and loop fastener body 1 .

The special-shaped section adopts a barb 5 structure and is connected to the hook and loop body 1 by gluing;

The technical principle of an embedded structure hook and loop provided by this embodiment:

When the hook-and-loop fastener of this structure is joined to the foam, in addition to the adhesive force on the back of the hook-and-loop fastener body 1, the "grip force" between the barbs 5 and the foam will also enhance the gap between the foam and the hook and loop fastener. of adhesion.

The above two embodiments are compared with the foam binding force:

The fatigue test is carried out on the sample after foaming. The hook and loop provided in Example 1 can realize that the sample after foaming satisfies 50 times of violent disassembly and does not fall off from the surface of the foam; the hook and loop provided in Example 2 fails to meet the requirements After 50 times of violent disassembly of the foamed sample, the velcro does not fall off the foam surface, but the effect is still better than the existing velcro.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations on this application. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (1)

1. an embedded structure hook and loop fastener, is characterized in that, comprises: Velcro body (1); silk cloth (2), covering the surface of the hook and loop fastener body (1); The I-shaped segment (3) is connected to the lower surface of the velcro body (1), and a circular hole (4) is formed on the middle vertical plate of the I-shaped segment (3).

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