JPH0732382A - Door trim with arm rest and manufacture thereof - Google Patents

Abstract

PURPOSE:To impart a feel of soft, a feel of high grade to an upper surface armrest part of an arm rest protrusion of a door trim and to reduce its weight, its cost by embedding a soft pad between a composite sheet skin of the armrest part or a skin and a core material, and raising this part toward an upper surface. CONSTITUTION:An armrest part 3 is provided in a protruding state on an upper surface 2a of an arm rest 2, and a pull handle is provided at its center. The part 3 is formed by laminating a soft pad 6 made of foam such as polypropylene, polyethylene, urethane, etc., on a core material 5 made of hard polyurethane foam, and laminating to adhere a composite sheet skin 9 obtained by laminating a relatively thin foamed sheet 7 and a skin 8 on a surface of the pad 6 or a single sheet of the skin 8. A protruding height of the part 3 is 0.1-10mm, and an accent line can be provided or a stitch pattern decoration can be provided as required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door trim with an armrest and a method for manufacturing the door trim, which are required to have a soft feeling and a high-class feeling in an automobile interior part.

[0002]

2. Description of the Related Art Conventionally, a door trim with an armrest, which is one of automobile interior parts, has a structure in which the main body of the door trim is equipped with an armrest which is a separate molded product. The main body structure of a door trim is generally finished by adhering a surface of a molded core material, which is a base material, to a skin such as a plastic sheet, a cloth, and a real leather, and decorating it. Examples of the core material as the base material include wood-based pressboard, PP resin, A
Injection molded products such as BS resin and foam molded products of hard urethane foam are used.

Also, the plastic sheet as the skin is
In order to express color, luster and grain pattern, the thickness is about 0.4-1.
0 mm PVC, PVC / ABS blend or TP
Skin layer composed mainly of O composition or a composite sheet skin in which a soft urethane foam sheet, a PVC foam sheet, a PE foam sheet, a PP foam sheet, etc. for laminating softness on the skin layer and the back surface of the skin layer are laminated. Cloth and genuine leather are often used.

As a method of manufacturing the door trim main body, a PVC powder slush molding method is used, for example, a composite sheet skin of PVC skin and PVC foam layer or P.
There is a method in which a VC skin is molded and then a foaming mold is used to cast a rigid polyurethane raw material as a core material on the back side of the composite sheet skin or a single skin to perform integral foam molding.

On the other hand, armrests additionally provided in the main body structure of the door trim are generally skins obtained by slush molding or rotational molding of PVC paste or powder, skins obtained by blow molding of PVC resin, and cloth. AB with epidermis or genuine epidermis as core material
It is made by a method such as injection molding insert of S, PA or PP resin, insert of iron plate, etc. and integral urethane foam molding with soft urethane foam.

[0006] More recently, from the viewpoint of economy or weight reduction, a manufacturing method of an armless and a door trim with an armrest structure which is integrally formed when a door trim main body structure is manufactured has become mainstream. In this door trim with armrest, as shown in FIG. 4, an armrest 22 integrally protruding from the door trim 21 is formed facing the indoor side, and an upper surface 22a of the armrest 22 has an armrest 23.
It is provided on a flat plane including.

According to this method, the desired price reduction and weight reduction are satisfied, but the door trim as an automobile interior part which is another purpose of the armrest equipment as described above is tailored to a beautiful design. Adds luxury and luxury. Since it is a passenger's armrest, it lacks the ability to express a soft sense of security, and it is undeniable that the product quality will decline. Therefore, in order to improve the problem of the deterioration of the merchandise in the integrally molded structure of the door trim main body / armrest, for example, in Japanese Patent Publication No. 29570/1990, a method of partially improving the soft feeling of the armrest corresponding portion. Was proposed.

[0008]

However, this door trim with armrest is a method in which a rigid polyurethane raw material is cast on the back surface of the composite sheet skin of PVC / PVC foam by the powder slush molding method, and the foam molding is performed integrally. In the method of integrally molding the door trim main body structure and the armrest structure, this is a proposal to partially enhance the softness of the armrest part, and the objective improvement of the partial softness can be achieved. Such important issues remain.

That is, because of the method of integrally molding the door trim body structure and the armrest structure, essentially only a simple design shape is made in comparison with the additional equipment of the separately molded armrest.

In order to enhance the softness of the armrest part,
In the process of inserting a soft pad material into the relevant part of the back surface of the PVC / PVC foam composite sheet skin and then injecting the hard polyurethane raw material into the entire back surface of the door trim body structure to perform integral foam molding, The soft pad is compressed in the thickness direction by the foaming pressure of 1 to ⁵ kg / cm ² . After that, when the molded product is released from the mold, the soft pad is covered with the rigid polyurethane foam, so that the expansion and restoration of the soft pad is the expansion to the skin side. Therefore, in the armrest on the upper surface of the armrest, a thickness difference of about 0.1 to 1.0 mm occurs between the soft pad insertion part and the general part, and the surface becomes uneven, which gives a very unnatural appearance and gives a product feeling. It will be a defect that greatly damages

The present invention is intended to solve the above-mentioned drawbacks, and an object thereof is to partially modify the armrest structure of the door trim with an armrest so that the armrest upper armrest has a soft feeling and a high-class feeling. The purpose is to reduce the weight and cost by integrally molding.

[0012]

SUMMARY OF THE INVENTION Therefore, the feature of the present invention for achieving the above-mentioned object is to provide a composite sheet skin including a core material having a partially protruding armrest protrusion, and a core skin and a foam layer. Or, in a door trim with an armrest in which skins are laminated, a soft pad is embedded between the composite sheet skin or the skin of the upper armrest part of the armrest projecting part and the core material, and the embedded part is raised in the upper surface direction. With door trim. And a foam layer and a skin formed by slush molding or vacuum molding on the surface of a foam mold with temperature adjustment capable of forming a recess having a predetermined depth on the mold surface corresponding to the upper armrest of the armrest protrusion. A composite sheet consisting of or is attached only to the skin, a soft pad of a predetermined thickness is laminated on it, and the rigid polyurethane raw material as the core material is injected into the mold by open casting or closed casting to integrally foam. This is a method of manufacturing a door trim with an armrest that is removed from the mold after being hardened.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a perspective view of a door trim with an armrest according to the present invention, and FIG. 2 is a cross-sectional perspective view of an XX line portion of the armrest portion of FIG. In FIGS. 1 and 2, an armrest 2 integrally bulging from a door trim 1 is formed to face the inside of the room, and an armrest 3 is provided on an upper surface 2a of the armrest 2 in a state of protruding, and a central portion thereof is provided. Has a pull handle.

The protruding armrest 3 is a feature of the present invention, and as shown in FIG. 2, a core material 5 made of rigid polyurethane foam and a soft pad 6 made of a foamed material such as polypropylene, polyethylene or urethane. Are laminated, and the surface thereof is a relatively thin foam sheet 7 made of polypropylene, polyethylene, polyvinyl chloride, urethane, etc.
And vinyl chloride, a blend of vinyl chloride and ABS resin,
A composite sheet skin 9 in which TPO (thermoplastic olefin resin) or cloth, and a skin 8 of the real skin is laminated, or a single sheet of the skin 8 is laminated and attached.

Here, the plastic sheet of the skin 8 is
The thickness is 0.4 ~ to express color, luster and grain pattern.
It is preferably 1.0 mm. Further, the protruding height H of the armrest portion 3 is set in the range of 0.1 to 10 mm, and it is possible to provide an accent line or decorate the stitch pattern as needed. The protruding height of the armrest is 0.1m
If it is less than m, it has a problem that it looks uncomfortable compared to the upper surface 2a of the general part and gives a very uncomfortable feeling, and greatly deteriorates the commercial property. It looks good, but on the other hand, it is too large and is not preferable in terms of molding and skin forming.

Next, a method for manufacturing a door trim with an armrest according to a second aspect of the present invention will be described. FIG. 3 is a cross-sectional view of a foam molding die showing steps of the method for manufacturing a door trim with an armrest according to the present invention, and a composite sheet skin 9 formed of a skin and a foam layer formed by a known manufacturing method using a normal slush molding die. Alternatively, the outer skin 8 alone is shown in FIG. 3, and the armrest part 3 and the shoulder part 14 of a pair of upper and lower foaming molds 11 each including an upper mold 12 and a lower mold 13.
The armrest part 3 of the armrest 2 which is mounted on the surface of the lower mold 13 having a recess of a predetermined depth at a position corresponding to, and which particularly needs cushioning at the back surface of the composite seat skin 9.
And separately formed thickness 2 at the position of the shoulder portion 14
A soft pad 6 having a thickness of ˜15 mm is laminated, and then a castable hard urethane foam raw material 5 is injected by a so-called open casting method or closed casting method.
Thus, after the hard urethane foam raw material 5 is cured by reaction, it is released from the mold to manufacture a door trim with an armrest having cushioning properties on the upper armrest portion 3 and the shoulder pad portion 14 of the armrest 2.

Although the above-mentioned embodiment has been described based on the manufacturing method of the door trim with armrest, other automobile interior parts, for example, automobile instrument pads, also need a cushioning property. It goes without saying that a soft pad can be provided on the.

[0018]

The door trim with armrest according to the present invention absorbs the expansion allowance due to the restoration of the soft pad by projecting the upper armrest portion or the shoulder portion of the armrest portion, which is required to have cushioning properties, in advance of other general surfaces. In comparison with the general surface, the door trim looks beautiful, and the door trim is made into a beautiful design to express luxury and luxury, and it also gives passengers a soft and secure feeling. Furthermore, the door trim body and armrest are integrally molded to reduce costs. Reduction and weight reduction can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view of a door trim with an armrest according to the present invention.

FIG. 2 is a sectional perspective view taken along line XX of FIG.

FIG. 3 is a cross-sectional view of a foam molding die showing steps of a method for manufacturing a door trim with an armrest according to the present invention.

FIG. 4 is a perspective view of a conventional door trim with armrests.

[Explanation of symbols]

 1 Door trim with armrest 2 Armrest 2a Upper surface of armrest general part 3 Armrest armrest part 5 Core material 6 Soft pad 7 Foam layer 8 Skin 9 Composite sheet skin 11 Foam molding 14 Shoulder part

Claims (3)

[Claims] 1. A composite sheet skin comprising a core material having a partially protruding armrest protrusion and a skin and a foam layer.
Alternatively, in a door trim with an armrest in which skins are laminated, a soft pad is embedded between the composite sheet skin or the skin and the core material of the upper armrest part of the armrest protrusion, and the embedded part is raised in the upper surface direction. The characteristic door trim with armrests. 2. The ridge height of the buried portion is 0.1 to 0.1 mm higher than the other surface.
The door trim with armrest according to claim 1, which is in a range of 10 mm. 3. A slush mold or a vacuum mold is formed on the surface of a foam mold which is provided with a recess of a predetermined depth in advance on the surface of the mold corresponding to the upper arm rest of the armrest protrusion. A composite sheet consisting of a foam layer and a skin, or only a skin is attached, and a soft pad having a predetermined thickness is laminated thereon, and a rigid polyurethane raw material as a core material is open-cast or closed-cast into the molding die. A method for manufacturing a door trim with an armrest, which is characterized by injecting with, and allowing it to foam-harden, and then demolding.