JPH0745144B2 - Laminated skin finishing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method of processing a skin end of a laminate, and more specifically, a laminate of a glove box outer of an automobile, each pillar garnish, etc. coated with a decorating material. It is related to the method of processing the skin end of the body.

(Prior Art) Conventionally, for example, an interior material such as a glove box outer of an automobile has a laminate structure in which a molding resin layer is laminated and adhered to a decorating material including a skin and a soft cushioning layer. Then, in this laminated body, the outer peripheral portion of the skin is bent toward the molding resin layer side, and the end of the skin is processed by adhesion.

(Problems to be Solved by the Invention) However, the terminal processing of the conventional laminated skin of this type is
Since the soft layer has elasticity, it is difficult to process when adhering the end of the epidermis to the resin layer, and the bent shape of the epidermis expands to make the shape of the end part inaccurate, and the finished product has a good finish. There was no problem.

Therefore, the purpose of the present invention is to bend the end of the skin to the soft layer side in a laminate consisting of the skin, the soft layer and the resin layer, and to bond the end of the bent portion of the skin accurately, and to obtain the finished product. Another object of the present invention is to provide a method for processing a skin end of a laminate, which is beautiful and is easy to bend and bond to the skin.

(Means for Solving the Problems) The means of the present invention is to provide a layered body in which a resin layer is adhered to the soft layer surface of a decorating material composed of a skin and a soft layer, and a surplus of the skin protruding to the outer periphery is attached to the resin layer side. It is a method of processing the skin end of the laminated body that bends and adheres to the outside, and has a small diameter that protrudes from one side of the mold for injection molding and that passes the injection material to a predetermined position. A skin having holes is arranged with its outer periphery protruding, and a resin layer is arranged on the other side surface of the mold, and a cavity is formed at a predetermined interval between the arranged skin and the resin layer. The injection material that forms the soft layer is injected through the passage hole of the epidermis, and the epidermis, the soft layer and the resin layer are laminated and bonded, and a surplus outer skin is squeezed out to form a laminate, and the surplus is formed. It is a process of bending the skin to the resin layer side Become As the injection material, for example, a molten resin to be a polyurethane resin, a thermoplastic elastomer having rubber elasticity, or a rubber-like elastomer before vulcanization is used.

(Working) The soft layer is formed by injection molding an injection material into an end face shape that is easy to process at the end. In the injection molding, the outer skin, the soft layer and the resin layer are adhered to each other, and the outer periphery of the outer skin is formed into a laminated body protruding from the laminated body.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.
In this example, the case of the laminated body 5 which is the outer glove box of an automobile is taken as an example.

FIG. 1 shows a resin molded body 1 which will be a resin layer of the glove box outer, which is preformed by an appropriate molding means such as injection molding. In this example, polypropylene containing 30% of talc is used. It has a predetermined shape with a thickness of 1.5 mm.

FIG. 2 shows an injection molding die for obtaining the glove box outer (laminated body 5).
Can be assembled by sliding. Reference numeral 7 is a convex portion of the convex mold 6 for mounting the resin molded body 1, 9 is a concave portion of the concave mold 8 for molding, and 10 is a molten resin injection hole.

Then, the resin molded body 1 is fitted to the convex portion 7 of the convex mold 6, and the woven fabric 2 as a skin is arranged between the convex mold 6 and the concave mold 8 and supported by appropriate means. In addition, the woven cloth 2 is of a size that covers the recess 9 sufficiently and the outer peripheral portion protrudes out of the recess 9, and the portion corresponding to the injection hole 10 has a small-diameter passage hole 2H through which the molten resin passes. It is formed. After that, the convex mold 6 and the concave portion 8 are closed, and a predetermined clearance is provided between the outer surface of the resin molded body 1 and the inner surface of the woven fabric 2 interposed.
In this example, a cavity with a clearance of 2.0 mm is formed. Next, a connection port (not shown) of a resin injecting machine is connected to the injection hole 10 of the concave mold 8 to inject the molten resin into the injection hole 10 and the passage hole.
Press into the cavity through 2H (resin temperature 180 ° C, injection pressure 400
kg / cm ² )

Thus, a semi-finished product 4 of a laminate is obtained in which the soft layer 3 is provided on the resin layer 1 and the woven fabric 2 having the outer peripheral portion protruding from the soft layer 3 is bonded to the soft layer 3 (see FIGS. 4 and 4). (See Figure 5).
In the semi-finished product 4 of the laminated body, the soft layer 3 is adhered only on the resin layer 1, and the end of the soft layer 3 is formed so as to have the same end face as the end of the resin layer 1. In addition, laminated semi-finished product 4
The passage hole 2H of the woven cloth 2 adhered to is inconspicuous because it has a small diameter, but if necessary, appropriate treatment is performed to make it more inconspicuous. Next, the protruding portion 2A of the woven cloth 2 is bent and bonded to the resin layer 1 side, so that the protruding portion 2A of the woven cloth 2 is bonded along the end surface of the soft layer 3 and the end surface of the resin layer 1. Since the end surface of the soft layer 3 and the end surface of the resin layer 1 are flush with each other, the protruding portion 2A of the woven fabric 2 is beautifully finished as a bending-bonded portion.

(Effect of the Invention) According to the present invention, however, since the end portion of the soft layer is formed into a shape in which the epidermis is easily bent and adhered, the epidermis is easily bent and adhered. Further, according to the present invention, the bent portion of the skin can be accurately finished, and the finished product can be made beautiful.

[Brief description of drawings]

The drawings show the steps for carrying out the present invention. FIG. 1 is a perspective view of a resin molded product, FIG. 2 is a front view of an injection molding mold, and FIG. 3 is a use mode of an injection molding mold in which a resin molded product and a skin are arranged. Fig. 4 is a perspective view of a molded product after injection molding, and Fig. 5 is Fig. 4 V-V.
FIG. 6 is a sectional view taken along the line, and FIG. 6 is a sectional view of the laminated product. 1 ... Resin molded product 2 ... Woven fabric 2A ... Overhang part 3 ... Soft layer 4 ... Laminated semi-finished product 5 ... Laminated body 6 ... Convex type 8 ... Concave type

Claims (3)

[Claims] 1. A skin terminal of a laminate in which a surplus skin protruding to the outer periphery of a laminate in which a resin layer is adhered to a soft layer surface of a decorating material composed of the skin and a soft layer is bent toward the resin layer for adhesion treatment. It is a processing method, and the outer circumference of the outer surface of the outer surface of the injection mold has a small size that protrudes from the product shape part and has a small-diameter passage hole for allowing the injection material to pass therethrough. And a resin layer on the other side of the molding die, and a cavity is formed at a predetermined interval between the placed skin and the resin layer. An injection material for forming a soft layer is formed in the cavity. It is injected through the through hole to form a laminate in which the skin, the soft layer and the resin layer are laminated and adhered, and the surplus skin protrudes to the outer periphery, and the surplus skin is bent on the resin layer side. A method for processing the end of the skin of the featured laminate. 2. The method for processing a skin end of a laminate according to claim 1, wherein the injection material is a molten resin. 3. The method for processing a skin end of a laminate according to claim 1, wherein the injection material is an elastomer before vulcanization.