JPH03146003A - Fastener assembly for cushion material of seat - Google Patents

Abstract

PURPOSE:To improve the setting property to a forming mold and to improve the appearance and the seated feeling of a seat by arranging plural fastener pieces at an interval on the surface of a ground fabric, closing up tightly each fastener surface by connecting them by a flexible part and sticking a closed film, and also, providing a magnetic material on each fastener piece. CONSTITUTION:On the surface except an outer edge part of a common ground fabric 1, fastener surfaces 3 are formed at an interval to each other, and three pieces of fastener pieces 2 are formed, respectively. A flexible part 4a is formed by the ground fabric in a gap part of each fastener piece 2. An adhesive tape 6 is placed on the fastener surface 3, and on the surface, a magnetic material piece of a thin band-like iron plate is stuck as a magnetic material 7. The magnetic material 7 is provided in order to set a magnet to a forming mold at the time of forming a cushion material. A thin closed film 8 made of a synthetic resin covers the surface of each fastener piece 2 as one body together with each flexible part 4a, the tape 6 and the magnetic material 7, and brought to thermal adhesion on the surface of the ground fabric of an outer edge part of each fastener surface 3. When a foaming synthetic resin such as urethane foam, etc., of a raw material is brought to foaming by setting a magnet to the forming surface of a forming mold provided with a magnet, the fastener surface 3 side can be attached integrally to a cushion material.

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" This invention is applied to seats of vehicles such as automobiles and furniture, in order to bring a cover material close to the surface of a cushion material to conform to the shape of the seat. The present invention relates to a member for forming a hook-and-loop fastener attached to a cushion material side that engages with an engagement surface formed on a cover material side.

"Prior Art" Generally, a cover material is formed of a three-layer structure including a skin material (for example, fabric, knit, leather, etc.), a filler pad, and a backing fabric. In some cases, hook-and-loop fasteners are attached to the back of the backing fabric by sewing or other means to form an engaging surface, but currently, hook-and-loop fasteners are attached to the back of the backing fabric to form an engaging surface.
An engagement surface that can be engaged with a hook-and-loop fastener on the cushion material side is formed. This engaging surface is provided on the entire surface of the backing fabric or in a width necessary to conform the cover material to the shape of the sheet. On the other hand, on the cushion material side, a plurality of band-shaped hook and loop fasteners are usually attached to the necessary locations to conform the cover material to the shape of the seat. Note that a large number of loops are formed on the engagement surface on the cover material side, and a large number of hooks that engage with the loops are usually provided on the fastener surface of the hook and loop fastener on the cushion material side.

There are many ways to bring the cover material into close contact with the cushion material, but one that is easy and low cost is the method described in Japanese Utility Model Publication No. 64-6158, "Cushion pads and skin materials for seats etc." There is a "junction structure".

That is, this means engages a hook-and-loop fastener attached integrally with the cushion material and a hook-and-loop fastener attached to the cover material (skin material) during foam molding of a cushion material (cushion pad) made of foamed synthetic resin. This brings the cover material into close contact with the cushion material.

However, with the above method, the hook-and-loop fastener placed on the mold tends to move during molding of the cushion material. Therefore, a fastener assembly as shown in FIG. 7 is commercially available. In the figure, 21 is a base fabric, 22 is a fastener surface formed on the surface thereof excluding the outer edge, and both 21 and 22 form a hook-and-loop fastener. 23 is a paper adhesive tape placed on the fastener surface 22, and 24 is a magnetic piece adhered to the surface of the adhesive tape 23. 25 is a thin synthetic resin type sealing film, which includes an adhesive tape 23 and a magnetic piece 24.
It also covers the surface of the base fabric 21 and is bonded to the outer edge of the surface of the base fabric 21.

Therefore, when foam molding cushioning material, if the fastener assembly is set in a mold with the fastener surface 22 facing the molding surface, the magnetic piece 24 will be attracted by the magnet disposed in the mold, so the hook-and-loop fastener will No order. Furthermore, the film 25 prevents the cushioning material from impregnating the fastener surface 22. After forming the cushion material, film 2
By tearing one end of 5 and pulling the paper tape 23, the fastener surface 22 can be exposed.

``Problems to be Solved by the Invention'' By the way, both this commercially available fastener assembly and the hook-and-loop fastener described in the above-mentioned publication have problems with the base fabric of the hook-and-loop fastener due to the shrinkage of the foamed synthetic resin that is the raw material during molding of the cushioning material. Since it does not follow the shrinkage, the base fabric becomes wavy by the amount of FM absorbed by the cushioning material, and the fastener surface also becomes wavy. Furthermore, when commercially available hook-and-loop fasteners are curved in the length direction against the curved surface of the mold, the magnetic material piece, which is approximately the same length as the built-in hook-and-loop fastener, is affected, resulting in undulations on the fastener surface during molding. may cause

This waving on the fastener surface may appear on the cover material joined to the cushioning material, deteriorating the appearance of the seat, or the engaging surface on the cover material side and the portion on the cushioning material side that engages with the hook-and-loop fastener and the portion that does not engage with the hook-and-loop fastener. As a result, an abnormal noise will be emitted when the seat is seated.

Moreover, a hook-and-loop fastener of a certain length is formed on the surface of the cushioning material to which tension acts. Therefore, even if tension is applied to the hook-and-loop fastener when the cushioning material is bent, the hook-and-loop fastener has no elasticity and creates a so-called hammock state, which adversely affects sitting comfort.

In order to eliminate waving on the fastener surface, the hook-and-loop fastener can be divided into a plurality of fastener pieces, and the lengths that do not cause undulation are set at intervals in a mold during molding. However, this increases the number of man-hours required for setting, and also causes quality problems such as uneven pinching between fastener pieces, steps, and twisting.

In this invention, the hook-and-loop fastener on the cushion material side that engages with the engagement surface on the cover material side can be easily set into a mold when molding the cushion material. The purpose is to make sitting comfortable.

"Means for Solving the Problems" In order to achieve the above object, the fastener assembly of the present invention has the following configuration.

A plurality of fastener pieces, each of which has a fastener surface formed on the surface of the base fabric excluding the outer edge, are arranged at intervals and at a length necessary to make the cover material conform to the shape of the sheet, and each fastener piece is A set of hook-and-loop fasteners is formed by connecting the two through the elastic part.

Each fastener surface is sealed by adhering a sealing film to the base fabric surface at the outer edge of each fastener surface.

Further, each fastener piece is provided with a magnetic material.

"Operation" When foam-molding cushioning materials, if you set the fastener side facing the molding surface of the molding mold in which the magnet is arranged, the magnetic material will be attracted to the molding magnet, so you can easily attach the hook-and-loop fastener to the magnet. It can be set easily, and the hook-and-loop fastener' does not move during molding. Moreover, since the hook-and-loop fastener is divided into segments and connected to each other by an elastic portion, it follows the curved surface of the molded surface well. Since each fastener piece is connected by an elastic part, it can be set in a mold in step 1.

The base fabric of the hook-and-loop fastener is impregnated with foamed synthetic resin, which is the raw material for the cushioning material, and is integrally attached to the surface of the cushioning material, but during molding, the elastic portion causes the hook-and-loop fastener to follow the shrinkage of the raw material. to prevent ripples on the zipper surface. In addition, since the fastener surface is covered with a sealing film, the raw material does not impregnate it. After the cushioning material is formed, the sealing film is easily removed.

In the formed seat cushion, the hook-and-loop fastener on the cushioning material side is made up of multiple fastener pieces connected by an elastic part, so even if a load is applied to the cushion, the elastic part absorbs the load. .

``Effects'' When attaching to cushioning material, it is easy to insert into the mold and can be set in one step.

Since the hook-and-loop fastener attached to the cushioning material does not cause undulation, it is possible to easily and economically form a seat that does not impair its appearance.

Since the seat absorbs the load when sitting on the seat by the elastic part, the hammock condition is eliminated and the seat is comfortable to sit on.

"Embodiments" Hereinafter, the present invention will be described in detail based on illustrated embodiments.

Example 1 First, in the example shown in FIGS. 1 to 3, AI
1 is a fastener assembly, in which three fastener pieces 2 are formed on the surface of a common base fabric 1 except for the outer edge thereof with gaps between them. The fastener surface 3 is formed by a large number of hooks.

Reference numeral 4a denotes a stretchable portion, which is formed by the base fabric 1 located in the gap between each fastener piece 2. That is, each fastener piece 2
are connected by a common base fabric l. Third
As shown in the figure, reference numeral 5 denotes a gap provided in each expandable portion 4a, which in the illustrated embodiment is formed by a plurality of holes. In addition, the elastic part 4a may be formed in a structure that allows it to expand and contract, such as a slit gap 5' shown in FIG. 4 or a tag (not shown).

Each fastener piece 2 and the stretchable part 4a form a set of hook-and-loop fasteners having a length necessary to conform the cover material to the shape of the sheet. The number of fastener pieces 2 and the length of the stretchable part 4a are arbitrary as long as the fastener surfaces 3 do not wave when the cushion material is shaped at the bottom, and do not cause a humping condition when sitting on the seat.

6 is an adhesive tape made of paper, which is placed on the fastener surface 3 of each fastener piece 2, and has a magnetic material 7 on its surface.
A thin magnetic strip of iron plate is glued to it. Magnetic material 7
is provided for molding the cushion material, particularly for setting the magnet in the mold. The width of the adhesive tape 6 is wider than the width of the fastener surface 3 and narrower than the width of the base fabric 1, and the width of the magnetic body 7 is narrower than the width of the adhesive tape 6.

8 is a thin sealing film made of synthetic resin, and each elastic part 4a,
The tape 6 and the magnetic material 7 integrally cover the surface of each fastener piece 2 and are thermally bonded to the surface of the base fabric 1 at the outer edge of each fastener surface 3. Therefore, together with the tape 6 and the magnetic material 7, each fastener piece 2 and each stretchable part 4a are sealed by the sealing film 8, and the foamed synthetic resin as the raw material is impregnated onto the side of each fastener surface 3 when forming the bottom of the cushioning material. prevent

This fastener assembly AI can be integrally attached to the cushioning material by setting the fastener surface 3 side to the molding part of the molding die equipped with a magnet and foam-molding the foamed TC resin such as urethane foam as the raw material. It turns out.

After forming the cushion material, each fastener surface 3 can be easily exposed by tearing one end of the sealing film 8 and pulling the tape 6.

Example 2 In the fastener assembly A2 in the example shown in FIG.
Each fastener piece 3 is not connected by the base fabric 1, but is connected by a connection layer 9. This connection N9 is made of a material that is stretchable and impregnated with the raw material of the cushioning material. In the embodiment, urethane foam, which is the same raw material as the cushioning material, is integrally formed on the back surface of the base fabric 1 of each fastener piece 2 together with the elastic portion 4b.

Example 3 A fastener assembly A3 shown in the example of FIG. 6 is obtained by removing the tape 6 and magnetic body 7 in Examples 1 and 2, and
Magnetic powder 7 is used as the magnetic material for the connection M9 in Example 2.
A connecting layer 9' mixed with `` is formed integrally on the back surface of the base fabric 1 of each fastener piece 2 together with the stretchable part 4C that connects the base fabric 1.

In Examples to 3, each fastener piece 2 was covered with one sealing film 8, but each fastener piece 3 may be covered.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view, and FIG. 2 is an enlarged sectional view of the main part. 3 and 4 are enlarged plan views of the telescopic section,
FIG. 3 shows an embodiment in which the void is a hole, and FIG. 4 shows an embodiment in which the void is a slit. FIGS. 5 and 6 are enlarged plan views of main parts showing another embodiment. FIG. 7 is a partially cutaway plan view of a commercially available product. Al~A3 ... Fastener assembly ... Base fabric 2 ... Fastener piece 3 ... Fastener surface 4a - 4C ... Expandable part 7.7' ... Magnetic body 8 ... Sealing film 9.9' ... Connection layer

Claims (1)

[Claims] 1. In order to bring the cover material into close contact with the foamed synthetic resin cushion material and to conform to the shape of the seat, a cushion material is provided on the surface of the cushion material that engages with the engagement surface of the back base fabric of the cover material. This is used to form a hook-and-loop fastener that is attached integrally with a base fabric, with multiple fastener pieces forming the fastener surface on the surface of the base fabric except for the outer edges, and the cover material is bent into the shape of a sheet with a space between them. A set of hook-and-loop fasteners is formed by arranging the fastener pieces to the length necessary to make the fasteners fit, and connecting each fastener piece with an elastic part, and a sealing film covering each fastener.
A fastener assembly for a seat cushion material, characterized in that each fastener surface is sealed by adhering to the surface of a base fabric at the outer edge of each fastener surface, and a magnetic material is provided on each fastener piece. 2. The fastener assembly for a seat cushion material according to claim 1, wherein the magnetic material is a magnetic material piece sealed with a sealing film via a tape placed on the fastener surface of each fastener piece. 3. The fastener assembly for a seat cushion material according to claim 2, wherein the elastic portion is formed by a plurality of voids provided in a common, integral base fabric of each fastener piece. 4. The fastener assembly for a seat cushion material according to claim 2, wherein the elastic portion is formed by a tag provided on a common, integral base fabric of each fastener piece. 5. The seat cushion according to claim 2, wherein the elastic part is formed integrally with a connection layer made of a foamed synthetic resin, which is formed on the back side of the base fabric of each fastener piece and has elasticity and impregnability with the cushioning material. Fastener assembly for materials. 6. The elastic part is formed integrally with a connecting layer made of a foamed synthetic resin that has elasticity and impregnating properties with cushioning material and is formed on the back side of each base fabric of the fastener piece, and the magnetic material is not mixed into the connecting layer. 2. The fastener assembly for a seat cushion material according to claim 1, wherein the fastener assembly is made of magnetic powder.