JPH11320734A - Skin material integral foam - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remarkably improve scrapping operability and to improve recyclability and economy with excellent easy scrapping by simply, rapidly separating a skin material and a pad material integrally molded with a rear surface side of the skin material. SOLUTION: A skin 5 and a skin material 3 made of a wadding 6 connected to a rear surface side of the skin 5 are formed in a predetermined shape by sewing, a stock solution of a foam synthetic resin is injected at the wadding 6 side of the skin material 3, and a pad material 9 is integrally foam molded with the material 3. An olefin synthetic resin film 7 is laminated at the wadding 6 side of the material 3. Sewed parts 11, 21, 22 of the material 3 are connected to the material 9. The film 7 is brought without contact with the material 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin material-integrated foam, and more specifically, a skin material comprising a skin and wadding joined to the back side of the skin is formed into a predetermined shape by sewing. Disposing the skin material in a foaming mold,
The present invention relates to a skin material-integrated foam formed by injecting an undiluted solution of a synthetic foam resin into the wadding side of the skin material and foam-molding the pad material integrally with the skin material.

[0002]

2. Description of the Related Art Conventionally, headrests, armrests and the like of a seat of a vehicle or the like are formed by covering a pad material on which a core material is attached with a skin material, and the skin material is formed of a foamed synthetic resin sheet on the back side of a fabric. Are formed by laminating waddings each having a predetermined thickness. The wadding and the skin are joined by frame lamination, that is, the surface of the wadding is heated and melted and the skin is pressed and joined, or joined using an adhesive or the like.

As shown in FIGS. 4 (a) and 4 (b), in the case of a headrest 1 as a skin material integral foam, a skin material 3
Is formed into a predetermined shape by sewing from the skin 5 and the wadding 6 bonded to the back side of the skin 5, and the pad material 9 is further formed on the wadding 6 side through an adhesive layer 8 made of a film or the like having good adhesiveness. It is integrally foamed.

[0004] A sewing portion 11 is formed on the skin material 3,
An opening 15 for inserting the headrest frame 13 as a core material and an insertion hole 17 for the headrest stay 13a are formed. With the headrest stay 13a of the headrest frame 13 inserted into the insertion hole 17 and projected to the outside, the headrest stay 13a is disposed in a foaming mold, and the foamed synthetic resin of the foamed synthetic resin is opened through the opening 15 inside the adhesive layer 8 of the skin material 3. The headrest 1 is formed by injecting the undiluted solution and foam-molding the pad material 9 integrally with the skin material 3.

[0005]

However, in the case of the conventional headrest 1 as a skin material-integrated foam, the skin material 3 and the pad material 9 are firmly joined by an adhesive layer 8 made of a film or the like having good adhesiveness. However, since this joining state covers the entire inner surface of the skin material 3 of the headrest 1, it is difficult to easily disassemble, workability is poor, and recyclability is lacking.

SUMMARY OF THE INVENTION It is an object of the present invention to easily and quickly separate a skin, a wadding bonded to the back surface of the skin, and a pad material integrally formed on the back surface of the wadding, and to easily disassemble the device. An object of the present invention is to provide a skin material-integrated foam which is excellent in removability, can significantly improve dismantling workability, is excellent in recyclability and is economical.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a skin material-integrated foam according to claim 1 of the present invention has a joint between a skin and a back surface of the skin. A skin material composed of the wadding thus formed is formed into a predetermined shape by sewing, the skin material is disposed in a foaming mold, a stock solution of a foamed synthetic resin is injected into the wadding side of the skin material, and the pad material is covered with the skin. In a skin material integral foam formed by foam molding integrally with a material, an olefin-based synthetic resin film is laminated on the wadding side of the skin material, and a sewing solution of the skin material is impregnated with a stock solution of foam synthetic resin. And a sewn portion of the skin material and the pad material are joined.

[0008] A skin material-integrated foam according to a second aspect of the present invention is characterized in that a skin material comprising a skin and wadding bonded to the back side of the skin is formed into a predetermined shape by sewing. A skin material integrated foam formed by disposing a stock solution of a foamed synthetic resin on a wadding side of the skin material, and foaming the pad material integrally with the skin material; An olefin-based synthetic resin film is laminated on the wadding side, and the sewn portion of the skin material is impregnated with a stock solution of a foamed synthetic resin, and the sewn portion of the skin material and the pad material are joined, and the olefin-based synthetic resin film and The pad material is non-bonded.

According to a third aspect of the present invention, there is provided an integrated foam material for a skin material, wherein the pad material is formed from a stock solution of a urethane foam synthetic resin, and the olefin synthetic resin film is formed from a polyethylene or polypropylene film. It is characterized by being.

[0010] A skin-material-integrated foam according to a fourth aspect of the present invention is characterized in that the skin-material-integrated foam comprises a headrest or an armrest.

[0011] According to the skin material-integrated foam of the first aspect of the present invention, an olefin-based synthetic resin film is laminated on the wadding side of the skin material, and the undiluted solution of the foamed synthetic resin is sewn on the sewing portion of the skin material. Since the sewn portion of the skin material and the pad material are joined together, the pad material is integrally joined at the sewn portion of the skin material, and the olefin-based synthetic resin film and the pad material have no adhesiveness. In addition, the skin material and the pad material can be easily dismantled, and the dismantling operation can be performed easily and quickly.

According to the skin material-integrated foam of the second aspect of the present invention, an olefin-based synthetic resin film is laminated on the wadding side of the skin material, and a stock solution of the foamed synthetic resin is sewn on the sewing portion of the skin material. Impregnated, the sewn part of the skin material and the pad material are joined, and the olefin-based synthetic resin film and the pad material are not joined, so the pad material is integrally joined at the sewn part of the skin material, The synthetic resin film of the system and the pad material become non-joined, the skin material and the pad material can be easily dismantled, and the dismantling work can be performed simply and quickly.

According to the skin material-integrated foam of the third aspect of the present invention, the pad material is formed from a stock solution of a urethane foam synthetic resin, and the olefin synthetic resin film is formed from a polyethylene or polypropylene film. Because it is formed, there is no danger that urethane and polyethylene or polypropylene film are firmly joined,
The skin material and the pad material can be easily dismantled, and the dismantling operation can be performed simply and quickly.

[0014] According to the skin material integrated foam of the fourth aspect of the present invention, since the skin material integrated foam is formed of a headrest or an armrest, the skin material and the pad material of the vehicle seat can be easily disassembled. Thus, the recyclability of the vehicle seat can be improved, and the dismantling operation can be performed simply and quickly.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a skin material integrated foam according to the present invention will be described in detail with reference to the drawings. 1 to 3 show a case where the skin material-integrated foam according to the present invention is applied to a headrest of a vehicle seat. However, the present invention can be similarly applied to an armrest of a vehicle seat. Further, portions corresponding to the headrests shown in the above-described conventional technique will be described with the same reference numerals.

As shown in FIG. 3, a skin material 3 of the headrest 1 has a cloth skin 5 such as a tricot on the front side, a wadding 6 of urethane or the like laminated on the back side of the skin 5 and a back side of the wading 6. Laminated synthetic resin film 7
And is formed from The synthetic resin film 7 may be laminated on the wadding 6 in advance, or may be attached later.

The skin 5 is made of brushed tricot, polyester or the like, and the wadding 6 is made of urethane having a thickness of 1 to 10 mm. The synthetic resin film 7 is formed from an olefin-based polyethylene or polypropylene film.

As shown in FIG. 1, a sewing portion 11 is formed in the skin material 3, and an opening 15 for inserting a headrest frame 13 as a core material and a headrest stay 13 are formed.
a is formed.

Although the headrest stay 13a is formed integrally with the headrest frame 13, it may be fixed separately. With the headrest stay 13a inserted into the insertion hole 17 and projected to the outside, the headrest stay 13a is disposed in a foaming mold (not shown), and the opening 15 is formed in the skin material 3.
An undiluted solution of a foamed synthetic resin is further injected, and the pad material 9 is foamed integrally with the skin material 3.

The stock solution of the foamed synthetic resin is a stock solution of a urethane foamed synthetic resin. This stock solution of the urethane foam synthetic resin does not have to be strongly bonded to the synthetic resin film 7 made of an olefin-based polyethylene or polypropylene film, and the skin material 3 and the pad material 9 can be easily dismantled. Work can be performed simply and quickly.

At the time of injection of the foam synthetic resin stock solution, the foam synthetic resin stock solution is impregnated into the skin material 3 through the needle hole of the sewing portion 11 of the skin material 3, and the sewing portion 11 of the skin material 3 and the pad material 9 are formed. It will be in the joined state. In order to obtain an appropriate joining force between the sewing portion 11 of the skin material 3 and the pad material 9, sewing portions 21 and 22 are formed in the skin material 3 on the bottom side of the headrest 1. The sewn portions 21 and 22 may be empty stitches. In short, the sewn portions 21 and 22 may be formed as long as needle holes are formed.

The olefin-based synthetic resin film 7 and the pad material 9 are not joined, and the sewn portions 11 and 12 of the skin material 3 are formed.
The pad material 9 is partially and integrally joined at the ends of the skin material 3 at the openings 1, 22 and the opening 15. The pad material 9 is also partially and integrally joined at the position of the insertion hole 17 of the headrest stay 13a.

[0023]

The above is the embodiment of the skin-integrated foam according to the present invention. According to the skin-integrated foam according to the first aspect of the present invention, the olefin-based foam is provided on the wadding side of the skin. The synthetic resin film is laminated, and the sewn portion of the skin material is impregnated with the undiluted solution of the foamed synthetic resin, and the sewn portion of the skin material and the pad material are joined. Therefore, the pad material is integrated with the sewn portion of the skin material. Since the olefin-based synthetic resin film and the pad material have no adhesiveness, the skin material and the pad material can be easily dismantled, and the dismantling operation can be performed simply and quickly.

According to the skin material-integrated foam according to the second aspect of the present invention, an olefin-based synthetic resin film is laminated on the wadding side of the skin material, and the stock solution of the foamed synthetic resin is sewn on the sewing portion of the skin material. Impregnated, the sewn part of the skin material and the pad material are joined, and the olefin-based synthetic resin film and the pad material are not joined, so the pad material is integrally joined at the sewn part of the skin material, The synthetic resin film of the system and the pad material become non-joined, the skin material and the pad material can be easily dismantled, and the dismantling work can be performed simply and quickly.

According to the skin material-integrated foam of the third aspect of the present invention, the pad material is formed from a stock solution of a urethane foam synthetic resin, and the olefin synthetic resin film is formed from a polyethylene or polypropylene film. Because it is formed, there is no danger that urethane and polyethylene or polypropylene film are firmly joined,
The skin material and the pad material can be easily dismantled, and the dismantling operation can be performed simply and quickly.

According to the skin material integrated foam according to the fourth aspect of the present invention, since the skin material integrated foam comprises a headrest or an armrest, the skin material and the pad material of the vehicle seat can be easily disassembled. Thus, the recyclability of the vehicle seat can be improved, and the dismantling operation can be performed simply and quickly.

According to the present invention, the skin, the wadding bonded to the back side of the skin, and the pad material integrally formed on the back side of the wadding can be easily and quickly separated, and the disassembly is easy. It is possible to obtain a skin material-integrated foam which is excellent in recyclability and excellent in recyclability and economical efficiency.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment in which a skin material-integrated foam according to the present invention is applied to a headrest.

FIG. 2 is a perspective view showing an embodiment in which a skin material integral foam according to the present invention is applied to a headrest.

FIG. 3 is a partially enlarged cross-sectional view of a skin material-integrated foam according to the present invention.

4A and 4B show a conventional headrest, in which FIG. 4A is a sectional view, and FIG. 4B is a partially enlarged sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Headrest 3 Skin material 5 Skin 6 Wadding 7 Synthetic resin film 9 Pad material 11 Sewing part 13 Headrest frame 13a Headrest stay 15 Opening 17 Insertion hole 21 Sewing part 22 Sewing part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI B29K 105: 04 B29L 31:58

Claims (4)

[Claims] 1. A skin material comprising a skin and a wadding bonded to the back side of the skin is formed into a predetermined shape by sewing, and the skin material is disposed in a foaming mold, and wading of the skin material is performed. Inject the undiluted solution of foam synthetic resin into the side, in the skin material integrated foam formed by foaming the pad material integrally with the skin material, laminating an olefin-based synthetic resin film on the wadding side of the skin material, A sewn portion of the skin material is impregnated with a stock solution of a foamed synthetic resin, and the sewn portion of the skin material and the pad material are joined to each other. 2. A wadding of the skin material, wherein a skin material comprising a skin and a wadding bonded to the back side of the skin is formed into a predetermined shape by sewing, and the skin material is disposed in a foaming mold. Inject the undiluted solution of foam synthetic resin into the side, in the skin material integrated foam formed by foaming the pad material integrally with the skin material, laminating an olefin-based synthetic resin film on the wadding side of the skin material, The sewn portion of the skin material is impregnated with a stock solution of a foamed synthetic resin, the sewn portion of the skin material and the pad material are joined, and the olefin-based synthetic resin film and the pad material are not joined. Skin material integrated foam. 3. The pad material is formed from a stock solution of a urethane foam synthetic resin, and the olefin synthetic resin film is formed from a polyethylene or polypropylene film. The skin material-integrated foam according to 1. 4. The skin material integrated foam according to claim 1, wherein the skin material integrated foam comprises a headrest or an armrest.