JPS6326277Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a synthetic resin molding that is attached to the outer surface of an automobile body for both protection and decoration of the automobile body.

For example, the side panel surface of a car is molded with synthetic resin in the form of a strip to protect the panel surface from slight contact caused by opening and closing doors in parking lots, etc., and also to add accents to the exterior of the car body. The item will be pasted. In the past, metal moldings were used for this type of molding, but synthetic resins, especially strip-shaped moldings, have been used because of their advantages such as cushioning properties, moldability, decorative processability, and light weight. Synthetic resin extrusion molded products are often used because they allow continuous and easy cross-sectional shapes. However, in recent years, there has been a strong demand for the cushioning and protection function of moldings, and there is a tendency for moldings themselves to become larger and wider. When a molding is made larger, it is expected that its weight will naturally be greater than that of a smaller molding, but in the case of automobiles, it is important to keep the molding lightweight for fuel efficiency and other issues. In addition, when increasing the size, especially when increasing the width, it is necessary to consider the problem of attachment to the outer surface of the vehicle body, that is, the problem of adhesion to the complex continuous curved surface of the vehicle body panel. Furthermore, as the size of the molding increases, the visible part of the molding also becomes larger, so requirements from a decorative point of view are even more demanding, and good design workability is also an important issue.

This invention was proposed based on this recognition, and the three main technical issues are the above-mentioned lightness, adhesion to the vehicle body, and design workability. Of course, improving the protection and cushioning performance, which is the essential function of molding, is also a major technical challenge. The specific configuration of this invention will be described below with reference to the attached drawings.

FIG. 1 is a partial perspective view showing a cross section of a molding 10 showing an embodiment of this invention. They are integrally connected via a connecting piece 12 in the width direction. Each molding component piece 1
1a, 11b... have the same or different shapes, and are composed of a hollow hard synthetic resin base layer 15 and a soft synthetic resin coating layer 16 on the outer surface of the base layer, and are formed integrally with the coating layer 16. The connecting pieces 12, 12, . . . are connected so as to be bendable in the axial direction.

The base layer 15 includes each hollow molding component 1
This is a part that defines the basic shape of 1a and contributes to its mechanical strength, and is made of a hard synthetic resin, particularly a synthetic resin with excellent impact resistance or rigidity. Examples of the resin constituting the base layer 15 include polyphenylene oxide resin, polyphenylene sulfide resin, polyacetal resin, and super heat-resistant ABS resin.

On the other hand, the covering layer 16 improves the initial cushioning properties and feel of the molding, and
Constructed from soft synthetic resin, typified by soft polyvinyl chloride resin.

The connecting piece 12 is integrally formed of the same soft synthetic resin as the covering layer 16 . The width, thickness, and shape of the connecting piece 12 are left to the discretion of the design and can be arbitrary.

The base layer 15, the covering layer 16, and the connecting piece 12 having hollow shapes can be continuously and easily molded by known composite extrusion molding. Further, in cases where the cross-sectional shape is irregular due to design or functional requirements, or where the end molding process is to be performed in one piece, blow molding is preferable.

2 and 3 are cross-sectional views of the moldings 10A and 10B of this invention attached to the body panel P of an automobile by adhesive means such as double-sided adhesive tape 20. In this invention, the connecting pieces 12, 12, . . . have a hinge effect, resulting in extremely good adhesion to the curved surface of the vehicle body panel.

This invention is particularly effective for wide and large-sized moldings because, in addition to the above-mentioned bonding properties, each molding component piece is constructed in a hollow shape and is significantly lightweight. In addition, the base layer of each molding component is made of hard synthetic resin with excellent impact resistance or rigidity, so it has sufficient strength to withstand normally expected impacts, and if more impact is applied. When the vehicle falls, the hollow base layer deforms and absorbs the impact, providing excellent protection for the vehicle body surface. Furthermore, since the outer surface coating layer is made of a soft synthetic resin, it has a soft feel and good tactility, and is protected from slight contact.
In addition, in the molding of this invention, the connecting pieces are made of the same soft synthetic resin as the covering layer and are flexible in the width direction, so each component piece of the molding conforms to the curved surface of the vehicle body in the vertical direction. It can be attached tightly to moldings, and is highly effective in improving the work efficiency of molding installation and improving its appearance. Furthermore, on the outer surface side, which is the visible part of the entire molding, a striped pattern with an uneven feel is created by each molding component piece and connecting piece, and the width, shape, combination, etc. of these stripes creates a three-dimensional decoration. This invention also has excellent advantages in terms of design workability.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view of a molding showing an embodiment of this invention together with its cross section;
The figure is a sectional view showing an embodiment of the molding of this invention mounted on a vehicle body panel, and FIG. 3 is a sectional view showing another embodiment. 10, 10A, 10B... Molding, 1
1a, 11b...molding component pieces, 12...
...Connection piece, 15...Hard synthetic resin base layer, 16...
...Soft synthetic resin coating layer.

Claims (1)

[Claims for Utility Model Registration] 1. A molding in which a plurality of molding constituent pieces are connected in the width direction, each of the molding constituent pieces having a hollow hard synthetic resin base layer and an outer surface of the base layer. Each component piece can be bent in the width direction by a connecting piece made of the same soft synthetic resin as the soft synthetic resin that constitutes the covering layer. A protective/decorative molding for an automobile, characterized by being connected to. 2. For automobiles according to claim 1, wherein the base layer is made of polyphenylene oxide resin, polyphenylene sulfide resin, polyacetal resin, or super heat-resistant ABS resin, and the covering layer is made of soft polyvinyl chloride resin. Protective and decorative moldings.