JPH05211909A - Connected surface fasteners for seat cushions - Google Patents

Abstract

(57) [Summary] [Purpose] When a surface fastener piece connection body is set in a foam forming mold, the foam material does not permeate into the locking part during foam molding and shrinks following the contraction of the foam material. Embed and fix in foam. [Structure] A substrate 1 includes a base cloth 2 having hook-shaped engaging portions 4 provided on the front surface, that is, a hook-and-loop fastener piece, and a fixed plate 3 having fixed leg portions 6 embedded in a foam material on the back surface. Is bonded with interposing a connecting thread 8 around which a magnetic metal foil is wound, several hook-and-loop fastener pieces are connected, the locking portion 4 is covered, and a film-like sealing for preventing the infiltration of foam material. A hook-and-loop fastener connecting body in which the portion 11 is provided on the upper surface of the substrate 1, and when the sealing portion 11 faces the inner wall of the molding die during foam molding of the cushion, the connecting thread 8 is connected to the magnet built in the molding die. Is sucked, the hook-and-loop fastener connected body is set, then the foam material is injected, the fixed leg portion 6 is embedded in the foam material, and the film-shaped sealing portion 11 is removed by heat treatment or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener used for applying a skin material to the surface of a cushion material in a seat of a vehicle such as an automobile. The present invention relates to a stopper composed of a connected body of hook-and-loop fastener pieces embedded and fixed in a cushion material.

[0002]

2. Description of the Related Art Conventionally, a fastener for a seat cushion of this type is a surface fastener type, and a fastener surface is formed at regular intervals on the surface of a base cloth except for both side edges, and a fastener surface is formed between the fastener surfaces. Form a stretchable section by connecting and forming a hook-and-loop fastener band, and adhere a sealing film that covers the fastener surface to the surface of the base cloth at the peripheral portion of each fastener surface, seal the fastener surface, and to each fastener surface There is known a surface fastener band for a cushion material such as a seat in which a magnetic material is interposed and a stretchable portion is provided with a plurality of voids in a base cloth or is provided with a tack so as to be stretchable. (JP-A-3-
(See Japanese Patent No. 146003) Further, a hook-and-loop engaging element is provided on the surface of the base cloth, and a hook-and-loop fastener having a fixing element with an expansion head is formed on the back surface. There is known a stopper that is embedded and fixed in a cushion material, and is equipped with a seat cushion material and a skin material. (See Japanese Patent Publication No. 3-18816 and Japanese Patent Publication No. 3-60291)

[0003]

The first known example described in the preceding paragraph is a surface fastener band for a seat cushion material in which a synthetic resin prevents a synthetic resin foam from penetrating into the fastener surface of the surface fastener band. It is a good measure to cover and seal the surface, and to provide a stretchable portion on the base cloth of the surface fastener band so as to absorb it so that the surface fastener band follows the contraction of the foamed synthetic resin during foam molding.

However, in order to provide the stretchable portion on the hook-and-loop fastener band, there should be no hooking portion such as a hook in the base cloth where the stretchable portion of the hook-and-loop fastener belt is installed. In addition, it is necessary to cut out the base cloth into an appropriate shape to form the void portion in order to produce the stretchable portion, which requires a lot of labor for production and wastes materials. Become. Further, since the surface fastener band is not provided with a means for surely embedding and fixing it in the foam material, the fixing of the surface fastener band is uncertain.

Next, the second known example is convenient for embedding and fixing a surface fastener having a fixing element having an expansion head on the back surface of the surface fastener in a foam material during foam molding. Since the fastener is intended for a single body and not for a connected body in which several surface fastener pieces are connected, the advantage of having a connected body in which several surface fastener pieces are connected cannot be expected. ..

[0006] The surface-fastener piece connecting body for a seat cushion of the present invention solves the above-mentioned problems and surely embeds and fixes the surface-fastener piece in the foam material by a simple means. To provide a good-looking hook-and-loop fastener connected body, which is provided with a sealing means so as not to penetrate into the hook-and-loop fastener, follows the shrinkage of the foam material at the time of foam molding, absorbs the shrinking force, and does not cause a wavy phenomenon in the hook-and-loop fastener piece. Is the purpose.

[0007]

In order to achieve the above-mentioned object, the surface fastener piece connecting body for a seat cushion according to the present invention has a large number of locking portions arranged on the surface of a substrate, and the locking portions are connected to the inside of the locking portions. A sealing part to prevent the penetration of foamed synthetic resin is provided on the upper surface of the board, and on the back surface of the board, several hook-and-loop fastener pieces with several fixing legs for embedding and fixing are arranged. The main component is a hook-and-loop fastener connected body for a seat cushion, in which fastener pieces are connected by a connecting thread, and the hook-and-loop fastener piece or the connecting thread is provided with magnetism.

[0008] Then, a magnetic metal foil is wound on the outer surface of the core yarn to form a connecting yarn, and a plurality of surface fastener pieces are connected by the connecting yarn to provide a surface cushion fastener connecting body for a seat cushion.

Further, a hook-and-loop fastener piece provided with a film-like sealing portion for covering the top surface of the locking portion arranged on the base cloth on the upper surface of the substrate, and a fixed leg portion for embedding and fixing on one surface And a fixing plate made of a synthetic resin provided with a connecting thread between them, with a connecting thread interposed therebetween.

Furthermore, a fin-shaped sealing portion having an outward oblique direction is provided around the peripheral edge of the engaging portion provided on the surface of the substrate, and the connecting thread penetrates the inside of the substrate with synthetic resin. It is a surface fastener piece connection body for a seat cushion formed by injection molding.

[0011]

The hook-and-loop fastener connecting body for a seat cushion according to the present invention is as described above, and is for preventing the foamed synthetic resin from permeating into the locking portion existing on the surface of the hook-and-loop fastener piece during foam molding. A sealing part is provided on the upper surface of the substrate, and on the back surface of the substrate, several hook-and-loop fastener pieces provided with legs for embedding and fixing in foam material are connected by connecting threads, and the hook-and-loop fastener piece or the connecting thread is magnetic. As shown in FIG. 8, when the hook-and-loop fastener piece connected body is set in the foaming mold, the hook-and-loop fastener piece connected body is attracted to the magnet housed in the molding die. Fixed.

Then, a foamed synthetic resin is injected into the molding die and foam-molded to complete a seat cushion as shown in FIG. The seat cover, that is, the surface fastener attached to the seat surface material, is engaged with the surface fastener fixed to the cushion and exposed on the surface to mount the cushion and the surface material.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a hook-and-loop fastener connecting body for a seat cushion according to the present invention will be specifically described below with reference to the drawings.

The drawings show an embodiment of the present invention. In the first embodiment shown in FIGS. 1 to 3, a substrate 1 has a small piece of base cloth 2 and a fixing plate 3 bonded to each other. The base fabric 2 is made of synthetic fiber such as polyamide, polyester, etc., and is formed from a male body of a so-called hook-and-loop fastener woven so that a large number of hook-shaped engaging portions 4 stand upright on the surface. Has been done. And the fixing plate 3 adhered to the base cloth 2
Is formed from an injection-molded body of synthetic resin such as polyamide or polyester, and on the back surface thereof, fixed leg portions 6 that are embedded and fixed in a foam material 5 of expanded synthetic resin such as polyurethane foam that serves as a cushion for the seat are erected. In addition, an enormous head 7 is formed at the tip of the fixed leg 6.

The base cloth 2 and the fixing plate 3 are adhered with a connecting thread 8 interposed therebetween, and the connecting thread 8 uses a synthetic fiber such as polyamide or polyester or a cotton thread as a core material, and its outer surface. The magnetic metal foil 9 is wound around. A thread in which magnetic metal powder is mixed in the synthetic resin filament may be used, or the magnetic metal powder may be mixed in the fixing plate 3 made of synthetic resin.

Further, a non-locking portion 10 having no locking portion is provided around the hook-shaped locking portion 4 provided upright on the base cloth 2, and the non-locking portion 10 has a thin film shape, for example, polyethylene. A non-locking portion 10 is provided at the peripheral edge so that a synthetic resin film such as a film covers the top surface of the hook-shaped locking portion 4 of the surface fastener.
A sealing portion 11 is formed on the upper surface of the substrate 1 to prevent the foam material 5 from permeating.

Next, in the embodiment shown in FIGS. 4 and 5, a hook-shaped engaging portion 13 is projectingly provided on the surface of a small piece-shaped substrate 12, and a male portion of a so-called surface fastener is formed. A fin-shaped sealing portion 14 that is inclined outward is provided around the peripheral portion so as to slightly project from the top surface of the hook-shaped locking portion 13. Further, a fixed leg portion 15 for embedding and fixing in the foam material 5 is provided on the back surface of the substrate 12, and an enormous head 16 is provided at the tip of the fixed leg portion 15. Then, the connecting yarn 17 penetrates the inside of the substrate 12 to form a surface fastener piece connected body.

Magnetic metal powder is mixed in the substrate 12, or a magnetic metal foil is wound on the outer surface of the connecting thread 17, and the surface fastener piece connected body is provided with magnetism.
The substrate 12 including the locking portion 13, that is, the surface fastener piece is formed by injection molding means of synthetic resin such as polyamide or polyester.

Finally, in the embodiment shown in FIG. 6, a hook-shaped engaging portion is provided on the surface of the substrate 18 as in the case of the second embodiment, and a thin fin having an outward oblique direction is provided on the peripheral portion of the substrate 18. A circular sealing portion 19 is provided around, and a fixed leg portion 20 embedded in and fixed to a foam material for a seat cushion is provided on the back surface of the substrate 18 so as to project. The fixed leg portion 20 has a flat plate-shaped head portion 21 supported by two supporting plates 22 in a clog shape, and the head portion 21 has a through hole 2
3 is provided to improve the circulation of the foam material. The substrate 18 and the like are formed by injection molding of a synthetic resin mixed with magnetic metal powder, the substrate 18 is penetrated by the connecting thread 24, and the substrates 18 are connected to form a hook-and-loop fastener connected body.

The surface fastener piece connected body of the present invention has the structure as described above, and the usage mode of the surface fastener piece connected body will be described, for example, with the surface fastener piece connected body shown in FIGS. Then, to attach the hook-and-loop fastener piece connection body to the cushion material 5 of the seat,
As shown in FIG. 7, the hook-and-loop fastener piece connection body is fixed to the magnet 26 installed in the foam molding die 25 by the fixed leg portion 15.
Are oriented so as to face outward, the magnetic material provided in the hook-and-loop fastener connecting body, in this case the connecting body 17, has a magnetic metal foil wound around it, so that the connecting thread 17 is connected to the magnet 26.
The sealing portion 14 that is sucked in and is simultaneously provided around the peripheral portion of the substrate 12 is pressed against the surface of the mold 25 and set in the mold 25 as shown in FIG. 8 (1).

Next, when the synthetic foam resin 5 is injected into the molding die 25 as shown in FIG. 8 (2), the sealing portion 14 provided around the substrate 12 is pressed against the surface of the die 25. The synthetic foam resin 5 does not penetrate into the locking portion 13 provided upright on the upper surface of the substrate 12. Then, as shown in FIG. 8C, the hook-shaped engaging portion 13 is foam-molded in a state where it is exposed on the surface, and the seat cushion is completed as shown in FIG. Thereafter, the surface fastener piece connected body is engaged with the female body 28 of the surface fastener attached to the seat cover 27, and the seat cushion and the seat cover are mounted.

[0022]

EFFECTS OF THE INVENTION The surface fastener piece connected body for a seat cushion of the present invention has the structure as described above,
This configuration has the following effects.

A hook-and-loop fastener in which a locking portion is provided on the front surface of the substrate, a sealing portion for preventing permeation of the foam synthetic resin is provided on the upper surface of the substrate, and fixed leg portions for embedding and fixing are provided on the back surface. Since the pieces are connected with the connecting thread, and the hook-and-loop fastener piece or the connecting thread is provided with magnetism, when the hook-and-loop fastener piece connecting body is attached to the seat cushion, the hook-and-loop fastener piece or the connecting thread is provided with magnetism. Since the foam material can be closely contacted with the mold, it is possible to completely prevent the foam material from penetrating into the locking portion, and moreover, it is possible to surely attach the foam material to the cushion material.

Further, since the surface fastener pieces are connected by the connecting thread, the arrangement of the surface fastener piece connected body can be freely changed. For example, as shown in FIG. 11, the hook-and-loop fastener connected body can be freely made to meander in a plane according to the shape of the sheet, and since it is a connecting thread, it can be deformed in any direction and can be freely arranged. Therefore, its range of use is only increasing. Moreover, unlike the one in which the hook-and-loop fastener is stretchable by means such as cutting out the material, the material is not wasted, and even if the foam material shrinks during molding, the connecting yarn bends following the shrinkage, The effect is immeasurable in that the shrinkage force is absorbed and the waving phenomenon does not occur in the surface fastener piece, and as a result, a well-formed sheet can be produced.

Next, since the connecting yarn only needs to be wound with the magnetic metal foil on the outer surface of the core yarn, the connecting yarn having magnetism can be easily prepared, and the locking yarn arranged on the base cloth can be easily produced. When bonding a hook-and-loop fastener piece that has a film-shaped sealing part that covers the top surface of the part on the top surface of the substrate and a fixing plate that has fixing leg parts for embedding on one surface with a connecting thread interposed Since a commercially available hook-and-loop fastener can be easily used, the hook-and-loop fastener piece connection body can be obtained at low cost and without waste of material. Further, with respect to the product in which the fin-shaped sealing portion is provided around the peripheral side edge of the substrate, the intrusion of the foam material can be completely prevented with a simple structure, so that a product that is inexpensive and has a high utility value can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a surface fastener piece connected body in which a film-shaped sealing portion is provided on a substrate.

FIG. 2 is a vertical sectional view of the above.

FIG. 3 is a perspective view of a connecting thread wound with a magnetic metal foil.

FIG. 4 is a perspective view of a surface fastener piece connected body in which fin-shaped sealing portions are provided around the peripheral side edge of the substrate.

FIG. 5 is a plan perspective view of the above.

FIG. 6 is a rear perspective view of a hook-and-loop fastener linked body including a geta-shaped fixed leg portion.

FIG. 7 is a cross-sectional view showing a state in which the surface fastener piece connected body shown in FIGS. 4 and 5 is suction-fixed to a mold.

8 (1), (2) and (3) are cross-sectional views showing a state in which the same hook-and-loop fastener linked body is set in a mold, a foam material is injected, and foam molding is performed.

FIG. 9 is a perspective view showing the relationship between the seat cushion and the seat cover after foam molding of the same.

FIG. 10 is an enlarged sectional view showing a part of the above.

FIG. 11 is a plan view showing a mode of use of the connected surface fastener piece.

[Explanation of symbols]

 1, 12, 18 Substrate 2 Base cloth 3 Fixing plate 4, 13 Locking part 5 Foam synthetic resin 6, 15, 20 Fixed leg part 8, 17, 24 Connecting thread 9 Magnetic metal foil 11, 14, 19 Sealing part

Claims (4)

[Claims] 1. A plurality of locking parts 4, 13 are arranged on the surfaces of substrates 1, 12, 18 and a sealing part for preventing permeation of foam synthetic resin into the locking parts 4, 13. 11, 14, 19
Are provided on the upper surfaces of the substrates 1, 12, and 18, and on the back surface of the substrate, several surface fastener pieces having several fixing leg portions 6, 15, 20 for embedding and fixing are arranged, and these are connected yarns 8. , 17, 2
A hook-and-loop fastener connected body for a seat cushion, wherein the hook-and-loop fastener pieces or the connecting threads 8, 17, and 24 are magnetically connected. 2. A magnetic metal foil 9 is wound around an outer surface of a core yarn to form connecting yarns 8, 17, 24. The connecting yarns 8, 17,
2. A plurality of hook-and-loop fastener pieces are connected by 24.
A connected surface fastener piece for a seat cushion as described above. 3. A hook-and-loop fastener piece having a film-like sealing portion 11 provided on the upper surface of the substrate 1 for covering the top surface of the locking portion 4 arranged on the base cloth 2, and a fixing for embedding on one surface. The surface fastener piece connected body for a seat cushion according to claim 1 or 2, wherein the fixing plate 3 made of a synthetic resin provided with the leg portions 6 is adhered with the connecting thread 8 interposed therebetween. 4. Fin-shaped sealing portions 14 and 19 having an outward oblique direction are provided around the peripheral edge of a locking portion 13 provided on the surfaces of substrates 12 and 18, and connecting threads 17 and 24 are provided. The surface fastener piece connection body for a seat cushion according to claim 1 or 2, which is formed by injection molding a synthetic resin in a state of penetrating the inside of the substrates 12, 18.