JP2002347043A - Manufacturing method of leather-integrated foam - Google Patents

Abstract

(57) [Summary] [Purpose] In a one-piece foam using leather skin pieces,
It is to prevent wrinkles and tarmi from being generated on the skin piece or wadding provided inside the skin piece. [Structure] In a state where the skin piece (2) and the wadding (1) are temporarily bonded, the pad is sewn in a bag shape and the pad (7) is integrally foamed with the wadding, and then the skin piece (2) is formed. The temporary bonding portion is separated from the wadding (1).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an armrest, a headrest, and the like of an automobile by integral foam molding.

[0002]

2. Description of the Related Art Some conventional armrests and headrests use natural leather such as cowhide or horse leather for a trim cover. This armrest is sewn into a bag shape by trimming a plurality of leather skin pieces cut into a predetermined shape and a foam wadding provided inside each of the skin pieces into a bag shape for pad formation inside. The pad is molded integrally with the wadding by injecting a foaming liquid.

[0003] The above-mentioned leather-made skin pieces are laminated with foam wadding on the back surface to form trim cover pieces, and each trim cover piece is sewn into a bag shape, and trim covers such as armrests and headrests are formed. Is formed.

[0004] Some of the leather-made skin pieces are formed by trimming the trim cover pieces by sewing or bonding the wadding around the pieces.

[0005]

In the former method, since the wadding is adhered to the entire back side of the trim cover piece, the trim cover piece is folded or bent at the time of sewing, or the sewn trim cover is turned over. As a result, there is a problem that wrinkles that impair the appearance of the headrest, armrest and the like are generated on one side of the skin.

On the other hand, in the case of the latter, since the skin piece and the wadding are not bonded as a whole, the thickness of the skin piece and the wading are generated due to a difference in physical properties between the skin piece and the wadding. Accordingly, the wadding has a fold, and the pad cannot be reliably foamed integrally with the wadding.

[0007] Therefore, an object of the present invention is to prevent a wrinkle and a wrinkle from occurring on a skin piece and wading in a skin-integrated foamed product using such a leather skin piece.

[0008]

According to the present invention, in order to attain the above object, the wadding is partially temporarily adhered to the leather piece and then sewn in a bag shape to foam a pad inside. It is characterized in that the molded piece is then peeled off from the wadding, and the temporarily adhered skin piece is manufactured from the wadding to produce a skin integral foam.

With the above structure, the skin piece and the wadding are partially temporarily adhered, so that wrinkles do not occur on one side of the skin when sewing or when turning over after trim cover sewing,
Also, no folds occur in wadding.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The drawings show a method of manufacturing a headrest provided in an automobile seat.

FIG. 1 shows trim cover pieces (1) and (2) for sewing a trim cover constituting an outer surface of a headrest.
The trim cover pieces (1) and (2) include a skin piece (2) made of natural leather such as cowhide and horse leather cut into a predetermined shape;
The skin pieces (2) and waddings (1) made of a slab material such as urethane foam cut to the same size.

The wadding (1) is superimposed on the skin piece (2) and partially temporarily bonded with an adhesive (3) (3)... To form a trim cover piece (a). Thus, the wadding (1) is integrated with the skin piece (2), and deformation of the wadding (1) during sewing or the like can be prevented.

The plurality of trim cover pieces (a)
May be sewn into a bag shape to form a trim cover for the headrest. However, in order to easily sew each trim cover piece (1), the temporarily adhered skin piece (2) and the wadding (1) are formed. Preferably, the periphery is sewn with sewing thread (4) as shown in FIG. Since the temporary bonding is for temporarily fixing the wadding (1) to the skin piece (2), it may be temporarily fixed by a method other than the bonding.

FIG. 3 shows a trim cover (A) formed by sewing the trim cover piece (a) shown in FIG. 2 into a bag shape. The wadding (1) is partially temporarily adhered to the skin piece (2). ,
The wadding (1) is temporarily bonded so as not to cause folds and the like.

A stay (6) is provided in the trim cover (A).
Alternatively, a pad (7) is formed by inserting a frame and injecting a foaming liquid for forming a pad from an injection hole provided in the trim cover (A).
When foamed integrally with wadding (1) and stay (6),
The headrest shown in FIGS. 4 and 5 is obtained.

After the pad (7) is foam-formed, an external force is applied to the skin piece (2) and the wadding (1) to peel off the temporarily bonded portion of the skin piece (2) from the wadding (1). The method of peeling differs depending on the temporary bonding method.

Thus, a headrest is manufactured.
The skin pieces (2) of the headrest except for the periphery thereof become independent from the wadding (1), and the elasticity of the wading (1) causes tension on each skin piece (2),
No wrinkles or tarls are generated on the skin piece (2).

[0018]

According to the present invention, a trim cover piece composed of a plurality of skin pieces and wadding is sewn into a bag shape and turned over, and a pad-forming foaming liquid is injected into the pad to foam the pad. Since the skin piece is partially fixed to the wadding by temporary bonding, no wrinkling occurs in the wadding and no wrinkle occurs in the skin piece.

After the pad foam molding, the temporary adhesive portion is peeled off, and the skin pieces are floated independently of wadding, so that the flexibility of the leather itself is not impaired. Appearance quality can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a skin piece and wadding used in the present invention.

FIG. 2 is a perspective view showing a temporary bonding state of the skin piece and wadding shown in FIG.

FIG. 3 is a sectional view of a state where the trim cover pieces in the state of FIG. 2 are sewn into a bag shape.

FIG. 4 is a perspective view of a headrest manufactured by the method according to the present invention.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

[Explanation of symbols]

 a Trim cover piece 1 Wadding 2 Leather skin piece 3 Adhesive 7 Pad

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) B68G 7/05 B68G 7/05 B // A47C 31/02 A47C 31/02 Z B29K 105: 04 B29K 105: 04 105: 20 105: 20 711: 08 711: 08 B29L 31:30 B29L 31:30 F term (reference) 3B084 CB00 DD04 3B087 DC01 DC05 4F204 AA31 AB02 AD01 AD05 AG03 AG20 AH27 EA01 EB01 EB12 EB13 EF05 EF27 EL03 EL11 EL18 EW02 EW40

Claims (1)

[Claims] 1. A trim cover consisting of a plurality of leather skin pieces cut into a predetermined shape and a foam wadding provided inside each of the skin pieces is sewn in a bag shape to form a pad forming inside. In a method for producing a skin-integrated foam product in which a foaming liquid is injected and a pad is integrally foamed with wadding, the wadding is partially temporarily bonded to the skin piece,
A method for producing a leather-integrated foam-integrated product, which comprises sewing the bag into a bag shape and foam-forming a pad therein, and then peeling off the temporarily adhered skin piece from wadding to produce a skin-integrated foamed product.