JPH06262706A - Manufacture of car door trim - Google Patents

Abstract

PURPOSE:To facilitate manufacturing a door trim, which is attached on the inside of a car door and partly decorated with a fabric. CONSTITUTION:An adhesive is applied on the surface of a core material 1 with a channel 3 formed around a required decoration area 2 on which a fabric 4 is stuck. The core material 1 is set on a vacuum suction mold 6, with the periphery of the fabric 4 inserted into the channel 3. A part of the core material 1 is inserted into the channel 3 by lowering a plug 8 by pressure, while a preheated skin material 7 such as polyvinyl chloride sheet being stuck on the core material 1 by the suction of the mold 6, so that the skin material 7 polymerised on the fabric 4 is removed by cutting the skin material 7 in the channel 3.

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 an automobile door trim mounted on the inner surface of an automobile door, and more particularly to a method of manufacturing a door trim partially decorated with a fabric. Is.

[0002]

2. Description of the Related Art Generally, a door trim for an automobile is formed by adding a thermosetting resin to a waste material such as natural fiber, synthetic resin, corrugated cardboard, etc., and heating and pressing the core material to form a core material having a desired uneven shape, and chlorinated the surface thereof. A skin material such as a vinyl sheet is attached with an adhesive.

[0003] In some passenger cars, a cloth (woven fabric) is decorated on the visible surface of the upper part of the armrest in order to give it a high-class feeling.

To decorate a conventional cloth, a skin material b such as a vinyl chloride sheet is adhered by suction or pressure to a core material a coated with an adhesive as shown in FIG. Further, there is a method in which an adhesive is applied to attach the cloth c and the peripheral edge of the cloth c is pushed into the groove d of the core material a.

[0005]

However, in this method, the adhesiveness to the surface of the skin b is not good due to the adhesive and the cloth c is easily peeled off, and the weight is increased because the skin b and the cloth c are doubled. The disadvantage that the work is complicated, such as the need for two bonding steps and the need for masking to prevent the adhesive from sticking out, and the skin material b is bent into a U shape in the groove d as shown in the drawing. Therefore, there is a drawback that the gap becomes wide and the peripheral edge of the fabric c is easily visible from the outside and the appearance is impaired.

Further, after applying an adhesive to the entire surface of the core material to bond the cloth, the peripheral edge of the cloth is pushed into the groove, and then the skin material is bonded by vacuum suction, and the vacuum suction is released to release the skin material. There was also a method of cutting the part slightly out of the groove with scissors and pushing the cutting edge into the groove, but with this method, even if the cutting edge shifts even a little, even if you try to push the cutting edge into the groove There is a problem that defective products are likely to be produced because there is a possibility that the product will be insufficient or will be left over and the appearance will be deteriorated.

[0007]

The method of manufacturing a door trim for an automobile according to the present invention is intended to solve the above problems.
An adhesive is applied to the surface of a core material having grooves formed around the required decoration area, a cloth is attached to the decoration area, and the peripheral edge of the cloth is pushed into the groove, and at the same time, a vacuum suction type The core material is set on the above, and a skin material such as a preheated vinyl chloride sheet is adsorbed on the surface of the core material by suction of the vacuum suction type, and at the same time, the plug is pressed down to partially remove the skin material. It is characterized in that the skin material polymerized on the cloth is cut off by pushing into the groove of the core material and cutting the skin material in the groove.

[0008]

[Function] The skin material is attracted to the surface of the core material by vacuum suction, and at the same time, the plug is pressed to push the skin material into the groove, and the skin material is cut in the groove. There is no excess or deficiency and you can always get a beautiful finish.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.
The core material 1 shown in FIG. 1 is formed into a desired concavo-convex shape by crushing waste materials such as corrugated cardboard, natural and synthetic fibers, mixing them with a synthetic resin such as phenol, and heating and pressing with a molding die. In this case, the groove 3 is formed around the decorative region 2. The core material 1 has air permeability.

An adhesive is applied to the entire surface of the core material 1 by spraying or the like. Then, as shown in FIG. 2, a cloth 4 previously cut into a certain size is attached to the decorative area 2, and the peripheral edge of the cloth 4 is pushed into the groove 3 using a spatula-shaped tool.

Next, as shown in FIG. 3, the core material 1 is set on a vacuum suction mold 6 having a large number of intake holes 5 formed on the upper surface thereof, and a skin material 7 made of vinyl chloride (synthetic leather) or the like is set. 12 in advance
It is heated to about 0 ° C., the skin material 7 is spread on the core material 1, the pressure inside the vacuum suction mold 6 is reduced by a vacuum pump, and the outside air is sucked through the intake holes 5. Reference numeral 8 denotes a plug disposed above the vacuum suction mold 6. The plug 8 is a metal plate having a thickness of several millimeters bent in a curved shape along the shape of the groove 3 and fixed to the lower surface of the lift plate 9. Become.

According to the present invention, however, as shown in FIG. 4, the skin material 7 is attracted to the surface of the core material 1 by suction of the vacuum suction mold 6, and at the same time, the plug 8 is pressed to push the skin material 7 into the groove 3. . At that time, since the skin material 7 is in a heated state and has extensibility, it is drawn into the groove 3 without breaking. By continuing vacuum suction for a while in this state, the skin material 7 is cooled and adhered onto the core material 1 by the action of the adhesive. At the time of this suction, the cloth 4 has air permeability and the skin material 7 does not have air permeability, so that the skin material 7 presses the cloth 4 onto the core material 1 and surely sticks the cloth 4 onto the core material 1.

Then, as shown in FIG. 5, the cutting blade 10 is pressed into the groove 3 to cut the skin material 7 in the groove 3 to remove the skin material 7 superposed on the cloth 4. Through the above process, the automobile door trim as shown in FIGS. 6 and 7 is manufactured.

As shown in FIG. 8, a cutting blade 10 is provided on the outer surface of the plug 8 so as to be slidable up and down. After the skin material 7 is pushed into the groove 3 by the plug 8, the cutting blade 10 is pressed down. By doing so, the skin material 7 may be cut as it is. This eliminates the need for a separate cutting step.

[0015]

As described above, according to the method for manufacturing an automobile door trim of the present invention, the cloth and the skin material are reliably adsorbed to the core material by vacuum suction, and the floating and peeling of the cloth are reduced, and at the same time, the plug is attached. By pressing down and pushing a part of the skin material into the groove of the core material, it is possible to easily decorate with the cloth in a small number of steps, and the appearance is improved without excess or deficiency of the cloth periphery, and the skin of the decoration area is also improved. Since the material is removed, there is a beneficial effect that the weight can be reduced.

[Brief description of drawings]

FIG. 1 is a partial vertical cross-sectional view of a core material showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of a core material to which a cloth is attached.

FIG. 3 is a vertical cross-sectional view of a core material set in a vacuum suction type.

FIG. 4 is a vertical cross-sectional view of a core material to which a skin material is attached.

FIG. 5 is a vertical cross-sectional view of a core material obtained by cutting a skin material.

FIG. 6 is a vertical cross-sectional view of the manufactured door trim.

FIG. 7 is a perspective view of a door trim.

FIG. 8 is a vertical cross-sectional view of a core material showing another embodiment of the present invention.

FIG. 9 is a vertical sectional view of a conventional door trim.

[Explanation of symbols]

 1 Core Material 2 Decorative Area 3 Groove 4 Cloth 5 Intake Hole 6 Vacuum Suction Type 7 Skin Material 8 Plug

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Claims (1)

[Claims] 1. An adhesive is applied to the surface of a core material in which grooves are formed around a required decorative area, and a cloth is attached to the decorative area,
The peripheral edge of the cloth is pushed into the groove, the core material is set on a vacuum suction mold, and a skin material such as a preheated vinyl chloride sheet is adsorbed on the surface of the core material by suction of the vacuum suction mold. At the same time, the plug is pressed down so that a part of the skin material is pushed into the groove of the core material, and the skin material is cut in the groove so that the skin material polymerized on the fabric is cut off. A method for manufacturing an automobile door trim, comprising: