JPH0516164A - Manufacture of door trim - Google Patents

Abstract

PURPOSE:To mold a door trim having a three-layered structure formed by successively laminating a surface material, a skin material and a base material by upper and lower press bonding molds so as to obtain good appearance and adhesiveness. CONSTITUTION:A cloth member 13 is laminated to the surface of a skin material 11 at a predetermined position and a base material 17 is arranged on a lower press bonding mold 15 and the groove part 18 of the base material 17 is filled with a sol like resin 20. Then, an upper press bonding mold 14 having a woody grain pattern part 16 downwardly protruding corresponding to the peripheral edge of the cloth member 13 is allowed to approach the lower press bonding mold 15 not only to perform press bonding molding but also to give a woody grain pattern to the cloth member by the use of the woody grain pattern part 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a door trim used for a door of a vehicle such as an automobile.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a door trim having a three-layer structure in which a surface material, a skin material and a base material are laminated in this order is formed on a base material a made of wood fiber or thermoplastic resin.
The trim body c is formed by laminating the skin material b by vacuum forming or the like, and the trim body c is set on the upper side of the crimping lower die d. On the other hand, the surface material e such as cloth is positioned and set with respect to the pressure-bonding upper mold f by preform or vacuuming. Then, the upper crimping die f is lowered with respect to the lower crimping die d, and the surface material e is adhesively fixed to the trim body c. An adhesive is applied in advance to the portion of the skin material b corresponding to the surface material e.

[0003]

However, when the surface material e is adhered and fixed to the trim body c preformed in this way, the surface material e is placed along the grained portion g of the pressure-bonding upper die f. Since the edge treatment of the material e is performed, after the surface material e is mounted, a gap h is formed in the groove c1 of the trim body c as shown in FIG. Therefore, the parting line at the edge of the surface material e is displaced, resulting in poor appearance. Further, an adhesive for adhering the surface material e and the trim body c is applied to the surface (skin material b) of the trim body c, but it is adhered in the groove c1 for edge treatment. It is difficult to apply the agent, and problems remain in terms of adhesiveness.

The present invention has been made in view of the above point, and is formed by laminating a surface material, a skin material and a base material in this order.
It is an object of the present invention to provide a door trim manufacturing method capable of forming a layered door trim with good appearance and good adhesiveness.

[0005]

DISCLOSURE OF THE INVENTION The present invention is premised on a method of manufacturing a door trim in which a door trim having a three-layer structure in which a surface material, a skin material and a base material are laminated in order is formed by a crimping upper die and a crimping lower die. And According to the present invention, a surface material is attached to a predetermined position on the surface side of a skin material and is positioned between a pressure-bonding upper mold and a pressure-bonding lower mold, and then a base material having a groove is arranged on the upper side of the pressure-bonding lower mold. Then, the groove portion of the base material is filled with a sol-like resin, and the door trim is pressure-molded by the pressure-bonding upper mold and the pressure-bonding lower mold in which the wood grain part projects downward corresponding to the groove part, and at the same time, the surface is formed by the wood grain part. It will be configured so that the grain of wood is included.

[0006]

Operation: The surface material having the surface material attached at a predetermined position on the surface side is positioned between the pressure-bonding upper die and the pressure-bonding lower die. A base material is placed on the upper side of the pressure-bonding lower mold, and the groove portion of the base material is filled with a sol-like resin. Then, the door trim is crimp-molded by the crimping upper die and the crimping lower die, and at the same time, the surface material is grained by the grained portion.

[0007]

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

In FIG. 1 showing a door trim manufactured by the method of the present invention, 1 is a door trim and a trim body 2
The cloth member 3, which is a surface material, is adhered to a predetermined position of.
The trim body 2 has a two-layer structure of a base material and a skin material, and the cloth member 3 is bonded to a predetermined portion of the surface of the skin material.

The manufacture of the door trim is carried out as shown in FIGS.

First, as shown in FIG. 2, a cloth member 12 is attached to a predetermined position on the surface side of a skin material 11 with an adhesive to form a two-layer structure 13, and a pressure-bonding upper mold 14 and a pressure-bonding lower mold 14 are bonded. It is arranged between the mold 15. The upper mold 14 is provided with a wood grain part 16 (wood grain bar), and the lower mold 15
A preformed base material 17 is mounted on the upper surface of the. Grooves 18, 18 for graining are formed on the base material 17, and correspondingly, grooves are formed on the lower mold 15. In addition, the upper mold 14 between the wood grain portions 16 and 16
The lower surface of the non-woven fabric 1 is provided to prevent the fabric member 12 from falling over.
9 is installed.

The groove portions 18, 18 of the base material 17 are filled with a sol-like resin 20, 20.

The width W of the groove portion 18 of the base material 17 is larger than the width obtained by the conventional method (see FIGS. 7 and 8) so that the grain-filled thread can be absorbed.

Then, as shown in FIGS. 3 and 4, the upper mold 14 is lowered and the lower mold 15 is used to bond the skin material 11 to the base material 17 by vacuum forming, and at the same time, graining is performed. That is, when the upper mold 14 and the lower mold 15 perform pressure molding, and at the same time, the compressible skin material 11 and the cloth member 12 are put into the groove portion 18 at the wood grain portion 16, the sol-like resin 20 is removed. Pushing them apart, the grain finishes. The sol resin 20 is solidified and solidified resin 20A
To be

As a result, the skin material 11 and the cloth member 1
2 is in a state of being slightly compressed by the wood grain portion 16 and the resin pressure. The skin material 11 is made of vinyl chloride resin, for example, and has a two-layer structure of a top layer having a thickness of about 0.4 mm and a foam layer having a thickness of about 3 mm, and has a relatively high compressibility.

After completion of the crimping and graining, as shown in FIGS. 5 and 6, the crimping upper mold 14 is raised and the grained portion 16 is pulled out from the groove portion 18 of the base material 17, whereby the door trim 1 is formed. At this time, the skin material 11 and the cloth member 1
Due to the restoring force of 2, the gap occupied by the wood grain portion 16 of the groove portion 17 is eliminated, and the appearance is improved.

With the above arrangement, the door trim 1 can be pressure-molded and the cloth member 12 is grained at the same time, so that the equipment and steps for the door trim molding can be reduced.

Particularly, the skin material 11 and the cloth member 1 after molding.
Since the gap in the groove 17 can be eliminated by the restoring force of 2, the deviation of the parting line can be absorbed, and the appearance of the wood grain part 16 is improved.

[0018]

As described above, according to the present invention, since the crimping molding and the graining can be performed at the same time, it is possible to reduce the equipment and the process for molding the door trim.
The door trim can be easily manufactured.

Particularly, since the gap in the groove can be eliminated by the restoring force of the skin material and the cloth member after molding, the deviation of the parting line can be absorbed, and the appearance of the wood grain part is improved.

[Brief description of drawings]

FIG. 1 is a schematic view of an entire door trim.

FIG. 2 is a view showing a state in which a skin material and a cloth member are arranged between a pressure-bonding upper die and a pressure-bonding lower die.

FIG. 3 is a diagram showing a pressure-bonding molded state.

FIG. 4 is a detailed view of the vicinity of the groove portion in the crimping and molding state.

FIG. 5 is a cross-sectional view of the door trim after molding.

FIG. 6 is a detailed view of a main part of FIG.

FIG. 7 is an explanatory diagram of a conventional method.

FIG. 8 is a cross-sectional view of a door trim formed by a conventional method.

[Explanation of symbols]

 1 Door trim 11 Skin material 12 Cloth member (surface material) 14 Crimping upper mold 15 Crimping lower mold 16 Wood grain part 17 Base material 18 Groove part

Claims (1)

Claims: 1. A method of manufacturing a door trim, wherein a door trim having a three-layer structure in which a surface material, a skin material and a base material are laminated in order is formed by a pressure-bonding upper die and a pressure-bonding lower die. The surface material is attached at a predetermined position on the surface side of the skin material, and the surface material is placed between the pressure-bonding upper mold and the pressure-bonding lower mold, and a base material having a groove is arranged on the upper side of the pressure-bonding lower mold. The groove of the material is filled with a sol-like resin, and the door trim is crimp-molded by the crimping upper mold and the crimping lower mold in which the wood grain part projects downward corresponding to the groove part, and at the same time, the wood grain of the surface material is made by the wood grain part. A method for manufacturing a door trim, which is characterized by being performed.