JPH03128210A - Manufacture of door trim with grip - Google Patents

Abstract

PURPOSE:To obviate the pasting operation of skin and to simplify the process by a method wherein both the skin body of the wall surface part of a door trim and a tubular skin body, both ends of which are under the state being inserted in the grip insertion holes of said skin body of the wall surface part, are installed in a foaming mold and, under the state as mentioned above, rigid urethane foam stock is filled in the rear of the skin bodies, expanded, hardened and, after that, released from the mold. CONSTITUTION:The upper end part 10 of a tubular skin body 2 is inserted in the grip insertion hole 6 of the shoulder part 3 of the skin body 1 of wall surface part, while its lower end part 11 is inserted in the hole 7 of an armrest part 4. At this time, the skin body 1 and the tubular skin body 2 are installed in the mold 20 under the condition that the rear face of the flange 9 of the skin body 2 abuts against the edge part 8 of the skin body 1. The foaming mold 20 consists of a top force 21 and a bottom force 22. The skin bodies 1 and 2 are brought into close contact with the bottom force. The upper part of the skin body 2 is fixed with a core 23. In addition, flexible cloth 26 is installed at the hole 5 of the skin body 1. Further, inserts 24 and 25, which are produced as mounting seats at the mounting of a door trim to other member, are temporarily fixed to the top force 21. Under the condition as just mentioned above, rigid urethane foam stock is filled in the rear of the skin bodies 1 and 2, expanded, hardened and then released so as to obtain a door trim 30 with grip.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method of manufacturing a door trim integrally having a protruding grip for opening and closing a door.

(Prior Art) In many cases, a door trim of an automobile is provided with a grip for convenient opening and closing of the door.

Conventionally, grips have often been molded completely separately from the door trim and attached to the door trim and the car body using screws or the like when the door trim is attached to the car body. However, in recent years, there has been a high demand for door trims with an integrated grip structure for the purpose of unifying the designs of door trims and grips and eliminating gaps between them. This type of door trim is characterized by the external shape of the door trim, including the grip, and the distance between the
In addition, a reinforcing panel is formed in which a through hole or a depression is provided in the grip portion, a frame-shaped body separately formed in advance is attached to the through hole or depression of the panel, and a skin material or a material is applied to the surface of the reinforcing panel. It has been manufactured by attaching cushioning material.

(Problems to be Solved by the Invention) In the conventional method for manufacturing a door trim with a grip, the grip and the wall portion of the door trim are integrated, and it is possible to manufacture a door trim with a grip that is consistent in design.

However, on the other hand, the above-mentioned manufacturing method has the drawback of being very time-consuming.

In other words, the conventional manufacturing method requires a step of separately molding the reinforcing panel, the frame, the door trim wall skin, and the grip part skin, and then pasting them together. The process of putting on clothes has no choice but to rely on manual labor.
This required a large amount of man-hours.

Therefore, the present invention focuses on the drawbacks of the conventional technology, and provides a grip-equipped structure in which the grip is formed integrally with the wall surface part, which makes it possible to unify the design, and which can be carried out with fewer manufacturing steps. The purpose is to propose a manufacturing method for door trim.

(Means for Solving the Problems) Therefore, the feature of the present invention for achieving the above object is to mold the skin body of the wall surface part of the door trim provided with two grip insertion holes and the cylindrical skin body. Then, with both ends of the cylindrical skin body inserted into the grip insertion holes of the skin body of the wall part, both of the skin bodies are attached to a foam mold, and the back surface of the face body is filled with a hard urethane foam raw material to form a hard urethane foam material. The method for producing a door trim with a grip involves foaming a urethane foam raw material, curing it, and then removing it from the mold.

(Example) Specific embodiments of the present invention will be described below.

FIG. 1 is a perspective view of a skin of a wall surface used in a specific embodiment of the method for manufacturing a door trim with a grip according to the present invention. FIG. 2 is a sectional view of a cylindrical skin body used in a specific embodiment of the present invention. FIG. 8 is a sectional view of a foam molding die showing one step of a specific embodiment of the present invention. FIG. 4 is an enlarged sectional view of the joint between the skin of the wall portion and the skin of the cylindrical portion in FIG. 8. FIG. FIG. 5 is a perspective view of a door trim manufactured by the manufacturing method of the present invention. FIG. 6 is an enlarged sectional view taken along the line AA in FIG. 5.

In the door trim manufacturing method of this embodiment, the first
A door trim wall skin body (1) as shown in the figure and a cylindrical skin body (2) as shown in FIG. 2 are molded separately in advance. Specifically, the skin body (1) of the wall surface part is made of synthetic resin molded to the outer shape of the door trim except for the grip, and is generally similar to a normal one, with a shoulder part (3) and an armrest part (4) that protrudes to the entire surface. ) are integrally formed.

Moreover, an elliptical hole (5) is provided between the shoulder part (3) and the armrest part (4) for inserting a fabric during integral molding.

Grip insertion holes (6) and (7) are provided as a characteristic component of the skin body (1) of the wall surface portion in the portion where the grip is arranged and where both ends of the grip come into contact. The grip insertion holes (6) and (7) have edge portions (8) whose ends are folded back inward (see FIG. 4).

On the other hand, the cylindrical skin body (2) becomes a grip when the grip-equipped door trim is completed, and has an L-shape as a whole, a circular cross section, and a cylindrical shape with a penetrating interior. Flanges (9) are provided on both edges of the cylindrical skin body (2). The material of each skin body (1) (2) is not particularly limited, and any material such as vinyl chloride resin, ABS resin, polyethylene resin, polypropylene resin fabric, etc. can be used, but in particular, a skin layer of vinyl chloride resin can be used. A foam layer made of the same vinyl chloride resin laminated on the back side is preferable because it has a good feel to the touch.

Similarly, as for the manufacturing method, well-known vacuum forming, slush molding, breath molding, sewing, etc. can be employed, but slush molding is the most preferable method for obtaining the above-mentioned vinyl chloride resin skin layer and foam layer.

Next, the upper end (10) of the cylindrical skin (2) is inserted into the grip insertion hole (6) of the shoulder part (3) of the skin (1) on the wall.
), and similarly insert the lower end (11) into the hole (7) of the armrest part (4).

At this time, the back surface of the flange (9) of the cylindrical skin (2) is brought into contact with the edge (8) of the skin (1) of the wall surface portion. In this state, the wall skin (1) and the cylindrical skin (2) are attached to the mold (20). The foaming mold (20) consists of a pair of upper mold (21) and lower mold (22), and a predetermined cavity is formed between them. The skin bodies (1) and (2) are tightly attached to the lower mold, and the upper part of the cylindrical skin body (2) is the core (23).
Fixed by

The holes (5) of the skin (1) on the wall are filled with preformed stretchable fabric (2) such as tricot or jersey.
6) is installed. The upper mold (21) has an insert (24) that forms a mounting seat when attaching the door trim to other parts.
) (25) is temporarily fixed. Then, in this state, a hard urethane foam raw material is filled into the back surfaces of the skin bodies (1) and (2) (not shown).

Then, the hard urethane foam raw material is spread throughout the cavity, foamed and hardened, and then removed from the mold to obtain a door trim (30) with a grip as shown in FIG. The grip (2) of the door trim with grip (30) manufactured according to this example has a hard urethane foam (31) inside, and the shape is maintained and the urethane foam (
31) rests with the hard urethane foam (32) filled on the back surface of the wall, so the grip (2) is fixed in a predetermined position (FIG. 6).

In this example, inserts were not inserted inside the grip (2) or on the back of the wall section (1); however, if greater rigidity is required, inserts may be inserted in those areas. good.

Further, since the fabric (26) in this embodiment is provided mainly for decorative reasons, it may not be provided depending on the design. In this case, the hole (5) in the wall part (1) is unnecessary. Hole (6) in the skin (1) of the wall part
The contact structure between the edge (8) of (7) and the flange hole (9) of the cylindrical skin body (3) is such that when filling the hard urethane foam, the flange (9) is folded over by the foaming pressure of the urethane, and both skin bodies This is a preferable configuration because it improves the adhesion of the joints and prevents raw materials from leaking out from the joints.

(Effects) The method for manufacturing a door trim with a grip according to the present invention involves separately molding a skin body of a wall surface portion of a door trim provided with two grip insertion holes and a cylindrical skin body, and inserting a cylindrical skin body into the holes. Both ends are inserted into a foam mold, and the two are integrated by casting hard urethane foam.

Therefore, the work of pasting the skin, which was conventionally necessary, is completely unnecessary, and a door trim with a grip with an integrated design can be manufactured through a simple process.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a wall surface body used in a specific embodiment of the method for manufacturing a door trim with a grip according to the present invention. FIG. 2 is a sectional view of a cylindrical skin body used in a specific embodiment of the present invention. FIG. 3 is a sectional view of a foam molding die showing one step of a specific embodiment of the present invention. Fourth
The figure is a cross-sectional view of the joint between the skin of the wall portion and the skin of the cylindrical portion in FIG. 3. FIG. 5 is a perspective view of a door trim manufactured by the manufacturing method of the present invention. FIG. 6 is an enlarged sectional view taken along the line AA in FIG. 5. (1)...Skin body of wall surface (2)...Cylindrical skin body (3)...Part of shoulder (4)...Armrest part (6) (7)...Grip insertion Hole (8)...Edge (9)...Flange (10)...End (20)...Mold (21)...Upper die (22)...Lower die (23) )... Core (26)... Fabric

Claims (1)

[Claims] 1. Molding the skin of the wall surface of the door trim with two grip insertion holes and the cylindrical skin, and inserting both ends of the cylindrical skin into the grip insertion holes of the surface of the wall surface. A method for manufacturing a door trim with a grip, which comprises: mounting both skin bodies in a foaming mold, filling the back surfaces of both skin bodies with a hard urethane foam raw material, and removing the mold after the hard urethane foam raw material is foamed and hardened. .