JPS6183019A - Manufacture of automotive interior trim - Google Patents

Abstract

PURPOSE:To simplify the manufacture of interior trim and obtain a product excellent in the durability thereof by a method wherein the main body of the interior trim is formed by blow-forming ad an article accommodating section is formed simultaneously with the forming while a surface skin, having an opening, is adhered integrally. CONSTITUTION:The surface skin member 2, having bonding property with respect to a synthetic resin forming the main body 1 of the interior automotive trim through blow forming, is prepared and a non-bonding section 21 is provided on the rear surface side of the member 2 while a notch 22 is formed on the section 21. Subsequently, the member 2 is retained at the inner wall surfaces of forming molds 3, 4 so that a parison la is located at the rear surface of the member 2, thereafter, the main body 1 of the interior time is blow-formed in the forming molds 3, 4. In this method, a sun visor A, in which the surface skin 2, excluding the section 21, is bonded integrally on the outer surface of the main body 1, may be obtained. According to this method, the manufacture of the interior trim through blow forming may be simplified and the product, excellent in the durability thereof, may be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for producing interior parts of automobiles, such as sun visors, headrests, armrests, etc., by blow molding.

(Prior Art) Conventional interior components, such as sun visors, have a structure as shown in FIG. 7 and FIG. 9, and were manufactured using the following manufacturing method. First, 27212 foam bodies (1
2) 7 frames (11) are integrally molded inside. Then, on the upper surface, the upper and lower two skins (13) and (14) are partially overlapped, and on the bottom surface, one skin (15) is applied.
The outer skin (1) provided on the upper and lower surfaces of this cushion body (12)
3H14) Attach the periphery of (15) using a sewing machine or high frequency welding. Then, a sun visor (A') having an article storage part (A') as shown in Figure PI47 is formed. Therefore, according to such a manufacturing method, the cushion body (1
2) The frame (11) must be integrally foamed inside, and the outer skin (13H14) (15) must be sewn around, which requires a lot of manufacturing man-hours and cannot be provided at a low cost. Moreover, although the outer skins (13) and (14) of the insertion opening of the article storage section (a') overlap, the cushion body (12) is exposed inside, so the article
(b) Damage caused by the removal and removal of the product, resulting in loss of durability;
There are clouds.

(Objective) The present invention aims to eliminate the above-mentioned conventional problems. In other words, by simplifying the manufacturing of automobile interior parts,
The purpose is to have durability.

(Structure) In the present invention, the interior component body is molded by blow molding, and at the same time, an article storage portion is formed at the same time as the interior product body is molded, and a skin having an opening is bonded together. Therefore, the article storage section can be molded simultaneously with the molding of the interior product main body, which greatly simplifies manufacturing. Furthermore, since the interior of the article storage section is a blow-molded product, the durability is improved compared to the conventional 27917 foam body.

(Example) Figure 1 shows a sun visor (
A), in the figure (1) is a hollow interior component body (sun visor body), (2) is a skin that is integrally glued to the outer surface of the interior component body (1), but there is a part of the interior component body (sun visor body). Product body (1)
There is a non-contact 'X1ffW (21) having a non-adhesive surface against the surface. There is 1
In the figure, (3) shows an arm frame attached to the vehicle body, and (b) shows an article.

Next, to explain the manufacturing method of the sun visor (A), first, a non-adhesive treatment is applied to the interior component body (1) to the synthetic resin for molding at appropriate locations on the back side of the outer skin (2). to create a non-bonded surface (21).
A notch (22) is provided in a part of 21) (Figure 5), and this skin (2) is used for molding the interior product body (1), such as woven fabric, knitted fabric, non-woven fabric, synthetic resin sheet (e.g. vinyl chloride), etc. Use a member that has adhesive properties to synthetic resin.

This back side is fixed to the inner wall surface of the blow molding molds (3) and (4) so that the parison (1a) for blow molding is located on the back side. After that, the interior product body (1) is molded using blow molding (3) and (4), which are installed on the inner wall surface of this skin (2).
(Fig. 4), the outer skin (2) is integrally adhered to the outer surface of the interior component main body (1) except for the non-bonded surface (21), and the sun visor (A) shown in Fig. 1 is formed. ) is obtained.

That is, since the portion having the non-bonding surface (-21) is not bonded to the interior component main body (1), this non-bonding surface (21)
A gap is created between the inner part body (1) and the facing outer surface of the inner part main body (1), and this gap becomes the article storage part (a), and the notch (a)
22) forms the opening (10).

The molding material for the interior component body (1) is a synthetic resin that can be blow-molded, such as polyethylene, polypyrene, vinyl chloride, or polyethylene-vinyl acetate copolymer.

What is shown in PA6UjJ is one in which the cutouts (22) are provided on the left and right sides to form an interior component main body (A).

Therefore, since the openings (10) and (10') are provided on the left and right sides, the article (b) can be inserted and stored from one opening (10) to the other opening (10'). Therefore, even if it is difficult to use !+! according to the conventional product (ff+8 manufacturing method), it becomes possible to produce 5+! by using this method.

In the above embodiment, the skin (1) is integrally bonded to one side of the interior product body (1), but it is also possible to adhere the skin (1) to both sides of the interior product body (1).

(Effects) According to the present invention, the outer skin is bonded together at the same time as blow molding the interior product main body, and an interior product having an article storage portion is molded. Therefore, manufacturing is simpler than the conventional products, and productivity can be improved. Moreover, in the interior product according to the present invention, the skin other than the article storage portion is completely and integrally bonded to the interior product main body, and the interior of the article storage portion is made of a strong blow-molded product. Durability can be improved compared to those molded using a manufacturing method. In addition, it is possible to reduce the number of parts and α losses, and to manufacture the product at a low cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an interior product molded according to the present invention;
Figure 2 is a cross-sectional view taken along the ff-It line in Figure 1;
Figure vJ3 is a cross-sectional view taken along the line ■-■, Figure 4 is a cross-sectional view showing the molding method, Figure 5 is a perspective view of the skin used in the present invention, and Figure 6 is an opening formed according to the present invention. Figure 7 is a perspective view of an interior component (sun visor) molded using the conventional manufacturing method, and Figure 8 is a perspective view of an interior component (sun visor) molded using the conventional manufacturing method.
FIG. 9 is a sectional view taken along the line ``--'' in the figure, and FIG. 9 is a sectional view taken along the ff-IX line. In the figure, (1) indicates the interior product body, (2) the outer skin, (A) the article storage section, and (10) and (10') the opening, respectively.

Claims (1)

[Claims] After installing a non-bonded surface that is not bonded to the parison and a skin member with a part of this non-bonded surface cut out on the inner wall surface of the blow molding mold, the interior product main body is blow molded with the blow mold, and the interior product is manufactured. A skin member whose non-bonded surface is on the side of the interior product body is integrally adhered to the outer surface of the main body, and the gap between the non-bonded surface and the opposing outer surface of the interior product body is used as an article storage area. Manufacturing method for automotive interior parts