JPH0957775A - Interior material manufacturing method and manufacturing apparatus - Google Patents

Abstract

(57) Abstract: In an interior material (10a) in which a base material (11), a skin material (12) and a sheet-shaped decoration member (13) are adhered to each other, the end face of the terminal of the decoration member (13) cannot be visually recognized from the wood grain groove. Thus, the appearance of the surface side of the interior material 10a is improved. SOLUTION: At the same time as molding a base material 11 with a synthetic resin, a skin material 12 is attached to the surface of the base material 11, and a decoration material 13 is attached to the surface of the skin material 12, and at the same time, the end of the decoration material 13 is used as the base material. The groove portion 11b of 11 made the base material 11 penetrate through the skin material 12 to make it difficult to see the end face of the end of the decoration material 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing interior materials such as door trims for vehicle doors, vehicle inner walls, and bag boards for seat backs.

[0002]

2. Description of the Related Art As one type of interior material, a base material made of a synthetic resin molded into a predetermined shape, a skin material attached to the base material and covering the entire surface of the base material, and the skin material An interior material which is provided with a sheet-shaped decorative material that is locally attached to a predetermined portion of the skin material and whose end is treated with wood grain in a groove provided in the base material. There is.

In this type of interior material, the skin material is placed in a tension state between upper and lower molds having a mold surface of a predetermined shape, and the decoration is provided on a predetermined portion of the mold surface of one of the molds. The material is releasably attached, and a synthetic resin in a molten state is supplied to the mold surfaces of the other molds of the two molds,
A manufacturing method is carried out by means of compressing a skin material and a decorative material between the molds to form the interior material.

[0004]

By the way, in the interior material of this type, the end of the decorative material is interposed between the concave and convex portions of the mold surfaces of both molds at the time of molding of the base material to form the groove portion formed in the base material. Although the wood is grained, as shown in FIG. 4B, at the wood grain portion, the end surface of the grained terminal of the decoration material 13 attached to the skin material 12 is easily noticeable from the groove. For this reason,
When the interior material is used in a state where the wood grain portion is exposed on the surface, the wood grain portion may impair the appearance. In addition, since the groove formed in the base material 11 has a substantially constant width, the appearance of the wood grain portion differs depending on the thickness of the decorative material 13.

Therefore, an object of the present invention is to make a treatment in the wood grain portion of the terminal of the decoration material in this type of interior material so that the end face of the terminal is not visible from the groove portion of the wood grain portion.
To improve the appearance of interior materials.

[0006]

The present invention relates to a base material made of a synthetic resin molded into a predetermined shape, a skin material that is stuck to the base material and covers the entire surface of the base material, and the skin material. An interior that is provided with a sheet-shaped decorative material that is attached to a material and locally covers a predetermined portion of the skin material, and the end of the decorative material is processed by being grained into a groove provided in the base material. The present invention relates to a manufacturing method for molding a material and a manufacturing apparatus for molding the interior material.

Therefore, in the manufacturing method according to the present invention, the skin material is placed in a tension state between the upper and lower molds having the mold surfaces of a predetermined shape, and a predetermined mold surface of one of the two molds is provided. The decorative material is releasably attached to the part, and a synthetic resin in a molten state is supplied to the mold surface of the other mold of the two molds, and the synthetic resin, the skin material and the decorative material are placed between the molds. In the manufacturing method in which the interior material is compressed by compression, the end of the decorative material is eroded into the base material through the skin material when the base material is molded.

Further, the manufacturing apparatus according to the present invention is a manufacturing apparatus used for carrying out the above-mentioned manufacturing method, and includes both upper and lower molds having mold surfaces of a predetermined shape,
In one of these two molds, a movable means is provided at a portion corresponding to the groove of the base material so as to press the end of the decorative material to bite into the base material.

[0009]

According to the present invention, when the base material constituting the interior material is molded, the surface material is simultaneously attached to the surface of the base material, and the surface material of the surface material is decorated at a predetermined portion. The materials are attached at the same time to manufacture the interior material. At the time of molding the base material, the end of the decorative material is eroded into the groove portion of the base material through the skin material. Therefore, the end surface of the decorative material at the end does not stand out from the groove of the base material, and the appearance of the interior material can be significantly improved.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described with reference to the drawings. FIGS. 1 to 4 show a door trim of a vehicle door which is an interior material according to an embodiment of the present invention. .
The door trim 10 includes a lower base 10a, an upper base 10b, and an armrest member 10c. The upper base 10b is integrally fixed to the upper end edge of the lower base 10a to form the door trim 10, and the armrest member 10c is the lower base 10a. An armrest is formed on the inner surface of the door trim 10 by being fixedly attached to the central step portion of the door trim 10.

However, the lower base 10a is shown in FIGS.
And as shown in FIG. 4 (a), a base material 11 made of a synthetic resin molded into a predetermined shape, a skin material 12 adhered to the base material 11 to cover the entire surface thereof, and an adherence material to the skin material 12. An ornament 13 which is a decorative material that is worn to locally cover a predetermined portion of the ornament 13. The upper and lower grooves 1 of the terminals of the ornament 13 are provided on the base material 11.
1a is wood grained, and front and rear ends are wood grained in front and rear groove portions 11b provided on the base material 11 for processing. As shown in FIG. 4 (a), the terminals before and after the ornament 13 are digging into the base material 11 through the skin material 12, and the end faces of the terminals are invisible from the groove portions 11 b. There is. As a result, the groove portions 11b of the lower base 10a exposed on the surface of the door trim 10 on the vehicle interior side are
The appearance of the surface of the door trim 10 is not damaged.

FIG. 5 shows an example of a method of manufacturing the lower base 10a that constitutes the door trim 10, and FIGS. 6 and 7 show an apparatus 2 for manufacturing the lower base 10a.
The upper die 21 of the mold forming 0 is shown. The molding die is composed of an upper die 21 and a lower die 22, and these die 21 and 22 are die surfaces 21a and 22 facing each other.
a and a projection 21b at a portion of the upper die 21 corresponding to each end of the ornament 13 on the die surface 21a, and the upper die 2 on the die surface 22a of the lower die 22.
A recess 22b into which the protrusion 21b can be inserted is provided at a portion corresponding to the protrusion 21b. These protrusions 2
1b and the recess 22b are formed in the grooves 11a, 1 of the base material 11, respectively.
1b to form 1b.

As shown in FIGS. 7 and 8, a rubber-made tubular swelling member 21c and a movable member 21d are provided on each of the front and rear projections 21b of the projection 21b of the upper die 21. ing. The swelling member 21c is embedded in the central portion of the protrusion 21b of the upper die 21, and the movable member 21d is mounted on the side of the swelling member 21c so as to be slidable inward and outward with respect to the protrusion 21b. ing. The swelling member 21c swells when hydraulic pressure is supplied to the inside thereof, and slides the movable member 21d outward to move forward, and contracts when hydraulic pressure is discharged to slide the movable member 21d inside. To retreat.

In order to manufacture the lower base 10a of the door trim 10, first, as shown in FIG.
The ornament 13 coated with an adhesive is fixed on the lower surface side of a predetermined portion of the mold surface 21a of the mold with a double-sided adhesive tape, and the skin material 12 is pulled between the upper mold 21 and the lower mold 22 with a clamp 23. Then, the synthetic resin 14 is supplied in a molten state onto the mold surface 22a of the lower mold 22. After that, as shown in FIG. 3B, the upper mold 21 is lowered onto the lower mold 22 to polymerize the two molds 21 and 22 with each other. Finally, hydraulic pressure is supplied into the bulging member 21c.

As a result, the synthetic resin 14 is compressed and expanded to form the base material 11 having a predetermined shape, and the skin material 12 is adhered to all parts on the front surface side of the formed base material 11. The ornament 13 is attached to a predetermined portion on the front surface side of the skin material 12. During this time, the swelling member 21c receives the supply of hydraulic pressure, and is moved from the state shown in FIG.
d is slid forward to move the end of the ornament 13 to the skin material 12 by the movable member 21d as shown in FIG.
It presses against the side wall of the groove part 11b of the base material 11 in a plastic state via. As a result, the end of the ornament 13 is eroded into the side wall of the groove 11b of the base material 11 through the skin material 12, and the end face of the terminal is not exposed in the groove 11b.

As described above, when the manufacturing method of the present invention is carried out by using the manufacturing apparatus 20 described above, the lower base 10a
When the base material 11 constituting the base material 11 is molded, the skin material 12 is simultaneously adhered to the surface of the base material 11, and the ornament 13 is simultaneously adhered to a predetermined portion of the surface of the skin material 12, thereby forming the lower base 10a. Is manufactured. At the time of molding the base material 11, the end of the ornament 13 is eroded into the groove portion 11b of the base material 11 via the skin material 12. Therefore, the end surface of the end of the ornament 13 is not visually recognized from the groove portion 11b of the base material 11, and the appearance inside the door trim 10 can be significantly improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a door trim, which is an example of an interior material to which the present invention is applied, as viewed from a front surface side on a vehicle compartment side.

FIG. 2 is a vertical sectional view taken along the line 2-2 of FIG.

FIG. 3 is a transverse cross-sectional view as seen in the direction of arrows 3-3 in FIG.

4 is an enlarged vertical sectional view of a portion indicated by an arrow 4 in FIG. 3, where FIG. 4A is a vertical sectional view of a door trim according to the present invention, and FIG. 4B is a vertical sectional view of a conventional door trim.

FIG. 5: Each step (a), (b) of the manufacturing method of the present invention
It is a schematic explanatory drawing which shows (c).

FIG. 6 is a perspective view of an upper die of a molding die used in the same manufacturing method as seen from below.

FIG. 7 is an enlarged vertical cross-sectional view of a protrusion forming the mold surface of the same mold, wherein FIG. 7A is a vertical cross-sectional view showing a non-actuated state of the movable member, and FIG. 7B is a movable member. FIG. 6 is a vertical cross-sectional view showing an operating state of FIG.

FIG. 8 is a partially enlarged vertical cross-sectional view showing a terminal treatment state in a molding die that constitutes the manufacturing apparatus of the present invention, and FIG. 8A is a vertical cross-sectional view showing a non-actuated state of the movable member. (B) is a longitudinal sectional view showing an operating state of the movable member.

[Explanation of symbols]

10 ... Door trim, 10a ... Lower base, 10b ... Upper base, 10c ... Armrest member, 11 ... Base material, 1
1b ... Groove part, 12 ... Skin material, 13 ... Ornament, 14
... Synthetic resin, 20 ... Manufacturing device, 21 ... Upper mold, 21a ... Mold surface, 21b ... Projection part, 21c ... Bulging member, 21d ... Movable member, 22 ... Lower mold, 22a ... Mold surface, 22b ... Recess, 23
…clip.

Claims (2)

[Claims] 1. A base material made of a synthetic resin molded into a predetermined shape, a skin material adhered to the base material to cover the entire surface of the base material, and a skin material adhered to the skin material. A manufacturing method for producing an interior material, which comprises a sheet-shaped decorative material for locally covering a predetermined portion of a material, and the end of the decorative material is processed by being grained into a groove provided in the base material. , Placing the skin material in a tension state between upper and lower molds having a mold surface of a predetermined shape, and releasably attaching the decorative material to a predetermined portion of the mold surface of one of the two molds, And in the manufacturing method of supplying the synthetic resin in a molten state to the mold surface of the other mold of the both molds, and compressing the synthetic resin, the skin material and the decorative material between the both molds to mold the interior material , Characterized in that at the time of molding the base material, the end of the decorative material is bited into the base material through the skin material. Method of manufacturing the interior material to be. 2. A manufacturing apparatus used for carrying out the manufacturing method according to claim 1, comprising both upper and lower molds having mold surfaces of a predetermined shape, and said one of these molds An apparatus for manufacturing an interior material, comprising a movable means that presses an end of the decorative material to bite into the base material at a portion corresponding to a groove of the base material.