JPH02227236A - Manufacture of trimming material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing an interior material having a composite structure consisting of at least a base material and a skin material.

2. Description of the Related Art For example, there is a structure shown in FIGS. 8 and 9 as a roof interior material mounted on the inside of a moving type roof.

In this method, a cushion material 321 and a skin material 33 are laminated in this order on a base material 31 such as cardboard or resin, and the cushion material 32 and skin material 33 are formed to be larger than the shape of the base material 31. Furthermore, by folding the end portion of the skin material 33 to the back side of the base material 31, the end face of the base material 31 is not visible from the outside, thereby improving the cosmetic appearance.

As shown in FIG.
6. 37 is a window glass.

Here, when looking at the procedure for forming the interior material 30 as described above, as shown in FIG. )
, (B)), the non-product part 38 at the peripheral edge of the base material 31 is trimmed from the cutting line ff (FIG. (C)), and then the cushioning material 321 and the skin material 33 are placed on the base material 31 in this order and again. The same figure (D
)), the non-product parts 39 at the peripheral edges of the cushioning material 32 and the skin material 33 are trimmed from the cutting line e so that the shapes of the cushion material 32 and the skin material 33 are -circularly thicker than the base material 31. ((E) in the same figure).Finally, as shown in (F) in the same figure, the end portions 40 of the cushion material 32 and the outer skin material 33 are folded back to the back side of the base material 31 and fastened with adhesive or a stapler. The interior material 30 having the structure shown in FIG. 9 can only be obtained by wearing it.

Problems to be Solved by the Invention However, in the conventional manufacturing method of the interior material 30, there is a limit to the reduction in product cost due to the large number of processing steps required to obtain the final product shape.

The present invention was made in view of the above problems.
The purpose is to provide a manufacturing method that reduces the number of processing steps and reduces the cost of interior materials.

Means for Solving the Problems The present invention is a method for manufacturing an interior material in which a skin material is bonded to the surface of a base material, in which a resin base material with a skin material bonded to one side in advance is shaped into a predetermined three-dimensional shape. At the same time, the non-product part of the peripheral edge of the pressurized and heat-formed base material is trimmed together with the skin material, and at the same time, at least the skin material is left inside the trimmed part of the base material. A process of press-molding the cutting slit part, cutting off the end part of the base material from the cutting slit part and peeling it off from the skin material, and folding the end part of the skin material from which the base material has been peeled back to the back side of the base material and fixing it. It includes the step of putting on the clothes.

According to this method, a base material to which at least a skin material has been bonded in advance is molded into a predetermined three-dimensional shape, and trimming and pressure molding of the cutting slit portion are performed in the same process. The number of processing steps required to obtain interior materials with this structure can be reduced.

Embodiment FIGS. 1 to 8 are diagrams showing an embodiment of the present invention. First, as shown in FIG. The cushioning material 2 and the skin material 3 are bonded together in advance, and the base material l to which the cushioning material 2 and the skin material 3 are bonded is placed in a mold 6 consisting of an upper mold 4 and a lower mold 5, as shown in the figure. set.

The upper mold 4 and the lower mold 5 have built-in heating means (not shown), and when the upper mold 4 is lowered from the state shown in FIG. 2 and pressurized and heated, the base material l is heated as shown in FIG. It is softened by heat and molded together with the cushion material 2 and the skin material 3 into a predetermined three-dimensional shape.

Subsequently, after a predetermined pressure cooling time has elapsed under the condition shown in Fig. 3, the upper die 4 is raised and the base material 1 is taken out from the mold 6, while this base material 1 is heated as shown in Fig. 4. Then, it is transferred to trim processing mold 7 for the purpose of trim processing. This trim processing die 7 consists of an upper die 8 and a lower die 9.
A mechanical cam-driven cutter 11 that operates at the bottom dead center position is built in, while a bead-shaped cutting blade 12 with a knife-shaped cross section is used to press-form a cutting slit portion 15, which will be described later. It is formed protrudingly.

Then, the upper mold 8 is lowered from the state shown in FIG. 4, and as shown in FIG. At the same time, the product part 14 is cut and removed from the cutting line C, and at the same time, the cutting slit part 15 is cut into only the base material 1 by the cutting blade 12, leaving the skin material 3 and the cushion material 2 inside the cutting line C (see FIG. 5).
Pressure mold. When pressure forming the cutting slit portion 15 on the base material 1 with the cutting blade 12, in order to avoid damaging the cushion material 2 and the skin material 3, the upper die 8 and the cutting blade reach the bottom dead center position. 12, a minute amount of clearance is ensured.

After that, the base material 1 that has been trimmed is taken out from the trim processing die 7, and the end material 16 at the end of the base material 1 is bent multiple times as shown in FIGS. 5 and 6 to form a cutting slit. 15 and peeled off from the cushion material 2, and the end portions 17 of the Rissilon material 2 and the skin material 3, which are left on the base material 1 side and are larger in circumference than the base material 1, are placed on the back side of the base material 1. It is folded back and fixed to the back surface of the base material 1 using, for example, an adhesive or a stapler, as shown in FIG.

As a result, as shown in FIG. 7, the interior material 10. In other words, an interior material IO similar to that shown in FIG. 9 is obtained.

Here, depending on the type of interior material, the cushion material 2 may not be included, and the present invention can of course be applied to a method of manufacturing such interior material.

Effects of the Invention As described above, according to the present invention, a base material to which a skin material has been bonded in advance is formed into a predetermined three-dimensional shape, and at the same time, the base material is trimmed together with the skin material, and at the same time, a cutting slit is formed only in the base material. Pressure molding is performed, and then the end portion of the base material is separated from the cutting slit portion and peeled from the skin material, and then
By folding the end of the remaining skin material to the back side of the base material and attaching it, the number of processing steps can be significantly reduced compared to conventional methods, and the same cosmetic function as before can be achieved. The cost of interior materials can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an embodiment of the present invention, and Fig. 4 is an enlarged explanatory view of the main part, Fig. 2 and Fig. 3 are process explanatory drawings of the pressurization and heat forming process of the base material, and Fig. 4 is an explanatory diagram of the main part of Fig. 4. Similarly, process explanatory diagrams of the trimming process, Figures 5, 6, and 7 are process explanatory diagrams for explaining the terminal processing method after trimming, Figure 8 is a perspective view of a car, and Figure 9 is a diagram of a car. FIG. 10 is a cross-sectional view taken along line A--A in FIG. 8, showing an example of an interior material for a roof, and FIG. 1O is a process explanatory diagram showing a conventional manufacturing method for the interior material shown in FIG. 9. I... Base material, 2... Cutting material, 3... Skin material, 6... Molding mold, 7... Trim processing mold, lO...
Interior material, 11... Cutter 12... Cutting blade, 13.
...Lower blade, 14...Non-product part, 15...Cutting slit part, 17...Terminal part. Fig. 35 Fig.

Claims (1)

[Claims] (1) A method for manufacturing an interior material in which a skin material is bonded to the surface of a base material, which includes a step of pressurizing and heat-forming a resin base material, which has a skin material pasted on one side in advance, into a predetermined three-dimensional shape. , Trimming the non-product part of the peripheral edge of the pressure-formed and heat-formed base material together with the skin material, and at the same time press-forming the cutting slit part while leaving at least the skin material inside the trimmed part of the base material. and a step of separating the end portion of the base material from the cutting slit portion and peeling it off from the skin material, and folding and fixing the end portion of the skin material from which the base material has been peeled back to the back side of the base material. A method for producing an interior material characterized by: