JP2719054B2 - Automotive interior goods - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile interior part comprising a skin layer and a hard urethane layer integrally formed by foaming and integrally molding a reinforcing fiber mat on the back side of the skin layer.

[0002]

2. Description of the Related Art As described in, for example, Japanese Utility Model Application Laid-Open No. Sho 58-92041 and Japanese Patent Publication No. Sho 57-46737, a skin layer and a hard urethane layer integrally foamed on the back side of the skin layer are provided. Automotive interior parts comprising a reinforcing fiber mat inserted into the hard urethane layer are known.

[0003]

However, in such an interior product, since the reinforcing fiber mat is in a mat shape,
The reinforcing fiber mat inserted into the hard urethane layer is pushed to a position biased toward the skin layer side and the back side in the hard urethane layer due to the uneven shape of the interior product. In particular, the reinforcing fiber mat floats on the convex part of the interior product.
The thick portion of the rigid polyurethane layer between the polarized Mashimashi in the skin layer reinforcing fiber mat on the back side of the gully rigid urethane layer occurs.
In this way, when the thick urethane layer has a thick portion, the reinforcing fiber mat inhibits the flow of the hard urethane raw material at the time of molding, so that air accumulation due to insufficient supply of the hard urethane raw material occurs. When the heat is applied to the interior parts of the automobile, the air in the air reservoir expands and swells on the surface of the interior parts, and thus the appearance of the interior parts is deteriorated.

[0004] The present invention relates to a method for forming a reinforcing fiber mat on the back side.
It is an object to provide a motor vehicle interior article by polarized standing to prevent blistering of the air reservoir interior trim surface by occurring between the reinforcing fiber mat in the skin layer and the rigid urethane layer.

[0005]

SUMMARY OF THE INVENTION The present invention provides an automotive interior product comprising a skin layer and a hard urethane layer integrally formed by foaming and integrally forming a reinforcing fiber mat on the back side of the skin layer. It is assumed.

The present invention, on the back side of the rigid urethane layer of the convex portion of the automobile interior part, a recess recessed in Table peel layer side is formed, the epidermal layer of the reinforcing fiber mat rigid polyurethane layer by the recess Side.

[0007]

The recessed concave to the action TABLE skin layer side, i.e., the recess is intended to be formed recessed skin layer side by the protruding portions of the mold at the time of foam molding, when the recess forming, the reinforcing fiber mat By pushing to the skin layer side by the protrusion of the mold, the reinforcing fiber mat is located on the skin layer side without lifting, so the volume between the skin layer and the reinforcing fiber mat is reduced, Since the hard urethane raw material is sufficiently supplied, the generation of air pockets is eliminated, and the swelling of the interior parts surface due to the air pools generated when heat is applied to the interior parts is prevented.

Further, as described above, since the recess is formed in the hard urethane layer so as to be recessed toward the skin layer side, it does not affect the shape of the skin layer at all and does not impair the appearance of the interior product. The degree of freedom in designing interior components is increased.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In FIGS. 1 and 2 showing the overall configuration, 1
Is a door trim which is an automobile interior component, and is a rigid body in which a skin layer 2 made of, for example, vinyl chloride, and a glass fiber mat 3 as a reinforcing fiber mat are inserted on the back surface side of the skin layer 2 and integrally formed by foaming. And a urethane layer 4.

A door trim 1 projects from a skin layer 2 side.
It has two convex portions 1a and 1b, and is formed by an upper die 5 and a lower die 6, as shown in FIG. Then, the hard urethane layer 4 on the back side of the convex portions 1a and 1b of the door trim 1.
A plurality of recesses 4a recessed Table peel layer 2 side, 4b, 4c are recessed (see FIG. 3). These recesses 4a, 4b,
4c is attached to the projections 5a, 5b, 5c of the upper mold 5 during foam molding.
Therefore, it is formed to be concave toward the skin layer 2 side.
Recesses 4a, 4b, 4c,
The protrusions 5a, 5b, 5 of the upper die 5 forming the b, 4c
The glass fiber mat 3 is hard without being lifted by c.
The urethane layer 4 is located on the skin layer 2 side.

The molding procedure is as follows. First, with the upper mold 5 opened, the preformed skin layer 2 is set on the molding surface of the lower mold 6 and the glass fiber mat 3 is placed on the skin layer 2. Place . Next , the hard urethane is placed on the glass fiber mat 3.
After injecting the tan material , the upper mold 5 is closed. This allows
The glass fiber mat 3 is made up of the protrusions 5a, 5b, 5c of the upper die 5.
Pressed toward the skin layer 2 by the
No. Then, the injected hard urethane raw material foams and cures.
By doing so, the glass fiber mat 3 becomes a hard urethane layer.
4 and the hard urethane layer 4 is
The door trim 1 integrally molded on the back side is obtained.
You. Thereafter, the upper die 5 is opened to open the molded door tray.
When the mold 1 is removed, the convex portions 1a,
In the hard urethane layer 4 on the back side of 1b, the concave portions 4a and 4
b, 4c are formed by the protrusions 5a, 5b , 5c of the upper die 5.
And is formed so as to be recessed toward the skin layer 2 side.

In FIG. 1, reference numeral 6 denotes a fastener seat, which is provided around the lower edge of the door trim 1.

With the above construction, the glass fiber mat 3 is pushed toward the skin layer 2 by the projections 5a, 5b, 5c of the upper die 5 during molding, and is positioned on the skin layer 2 without being lifted. Will be. Thereby, the convex portion 1
Since the volume between the skin layer 2 and the glass fiber mat 3 of the a and 1b is reduced and the hard urethane raw material is sufficiently supplied from the glass fiber mat 3 to this portion, the convex portions 1a,
Air does not accumulate between the skin layer 2 and the glass fiber mat 3 in 1b, so that the surface of the door trim 1 does not swell due to air expansion at high temperature and the appearance does not deteriorate.

Further, since the recesses 4a, 4b and 4c are formed in the hard urethane layer 4 and are recessed toward the skin layer 2,
These recesses 4a, 4b, 4c can be prevented from affecting the shape of the skin layer 2, and the degree of freedom in designing the door trim 1 can be increased without impairing the appearance.

[0016]

According to the present invention, as described above, the recess which is recessed in the table skin layer side, since the reinforcing fiber mat was positioned on the skin layer side, the polarization of the rear surface side of the reinforcing fiber mat < The hard urethane layer in the protruding portion of the interior part of the automobile due to the presence of the air does not accumulate, and as a result, the surface swelling of the interior part of the automobile at a high temperature due to the air accumulation can be prevented, and the appearance can be improved. Furthermore, since the recess is recessed toward the skin layer side so as not to affect the shape of the skin layer, the degree of freedom in designing the interior product can be increased without impairing the appearance of the interior product.

[Brief description of the drawings]

FIG. 1 is a rear view of a door trim which is an automobile interior product.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an explanatory view of forming a door trim.

FIG. 4 is an enlarged view of a portion B in FIG. 2;

FIG. 5 is a view similar to FIG. 4 of a conventional example.

[Description of Signs] 1 Door trim (automobile interior parts) 1a, 1b Convex portion 2 Skin layer 3 Glass fiber mat (fiber mat for reinforcement) 4 Hard urethane layer 4a, 4b, 4c Concave portion 5 Upper mold 5a, 5b, 5c protrusion Department

Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location B29K 105: 04 B29L 31:58

Claims (1)

(57) [Claims] 1. A car interior part comprising a skin layer and a hard urethane layer integrally formed by foaming and integrally forming a reinforcing fiber mat on the back side of the skin layer, on the back side of the rigid urethane layer of convex portions, concave portions recessed in Table peel layer side is formed, characterized in that located in the skin layer side of the reinforcing fiber mat rigid polyurethane layer by the recess automobiles Interior goods.