JPH027084Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Field of the Invention>> This invention relates to an improvement in the joining structure of interior parts for automobiles.

<Prior art and its problems> In general, interior parts for automobiles are manufactured by overlapping or butting together a plurality of interior parts formed to match each curved shape of the inner panel of the automobile along their joint surfaces. It can be assembled into one piece.

Figure 1 shows a rear corner 1, which is one of these interior parts, and its joint structure.This rear corner 1 forms an opening 1a for a rear partition window and a recess 1b for installing a pillow at its rear part. At the same time, connecting portions 1c, 1c are formed on the upper surface to be joined to the edge decoration materials 3, 3.

Then, the pillow 2 is attached to the attachment recess 1b at this rear corner 1, and
The end portions of the edge decoration materials 3, 3 are attached to the connecting portions 1c, 1c so as to be overlapped therewith.

However, in the joint structure of interior parts having such a structure, especially the connecting parts 1c,
1c and the joint surface between the edges of the edge decoration material, and the recess 1
Between the mounting part of the pillow 2 and c,
Squeaking noise is likely to occur due to friction between these parts.

Such squeaks are mainly caused by temporary misalignment between individual interior parts due to vibrations of the automobile or the like.

Further, the rear corner 1 is made of a synthetic resin injection molded product, the trimming material 3 is also made of an injection molded product, and the pillow 2 has a core material 2a as shown in FIG.
A skin material made of vinyl chloride is pasted on top via a pad material 2b, and the ends of the skin material 2c are folded back onto the inner surface of the core material 2a.

Therefore, the materials constituting each part are likely to generate noise when these parts are rubbed together.

As a means to eliminate such squeaking noise, for example, as shown in FIG. 2, a nonwoven fabric 4 may be interposed between the connecting portion 1c and the border 3, or the pillow may be used as shown in FIG. By interposing the nonwoven fabric 4 between the recess 1b and the recess 1b, the respective members do not come into direct contact with each other, but instead come into contact via the nonwoven fabric 4, thereby eliminating the generation of squeaks and the like caused by these materials. .

However, in the case of such a structure, a separate material such as the nonwoven fabric 4 must be pasted to one side of each part to be joined, and the workability is poor because the parts to be pasted are curved surfaces. Moreover, depending on the bonding operation, the nonwoven fabric 4 protrudes from the other surface of the joint, and this is observed from the outside, resulting in an extremely unsightly appearance.

<<Purpose of the invention>> The object of this invention is to make it possible to effectively prevent the generation of creaking noise without interposing a separate material such as the above-mentioned nonwoven fabric between the joints.

<<Structure and Effects of the Invention>> In order to achieve the above-mentioned object, in the present invention, interior parts, at least one of which is made of a synthetic resin molded body, are overlapped and joined together, and the overlapping of said one interior part is A feature is that a protrusion is formed on the surface to linearly contact the overlapping surface of the other interior component.

According to the above configuration, the overlapped interior parts do not come into contact with each other in a plane, but in a linear manner with a protrusion provided on one of the overlapping surfaces, so that both parts do not have relative sliding motion. The above-mentioned squeaks do not occur even if the parts are repeated, and in order to prevent such squeaks, the parts It has various effects such as reducing the number of points, improving assembly workability, and eliminating unsightly appearance caused by protrusion.

<<Description of Examples>> FIGS. 4 and 5 show a case where this invention is applied to a joint with a border material and a pillow.

In addition, in each figure, the same reference numerals are given to the same component names as in the conventional art, and the explanation thereof will be omitted.

As shown in Figure 4, the rear corner connecting part 1
At the overlapped portion of the edge decoration material 3 and the edge decoration material 3, a protrusion 10 is integrally provided on the outer periphery of the edge of the edge decoration material 3, and the tip of the protrusion 10 is brought into contact with the inner circumference of the connecting portion 1c. It's forcing me.

Further, in FIG. 5, a protrusion 20 is formed on the periphery of the recess 1b, and the back surface of the pillow 2 is fixed to the recess 1b of the rear corner 1 by abutting the tip of the protrusion 20. .

That is, in this example, a protrusion is formed on one of the two parts, and the overlapping surfaces between these parts are changed from surface contact to point contact (linear in the longitudinal direction).
By doing so, it is possible to prevent rubbing or creaking noises caused by relative sliding between the two as shown by the arrows.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing the joint structure between interior parts centered around the rear corner, Fig. 2 is a partially enlarged cross-sectional view showing the conventional joint structure in the direction A of the rear corner, and Fig. 3 is FIG. 4 is a partial enlarged cross-sectional view showing the joint structure at part B of the rear corner, FIG. 4 is a partial enlarged cross-sectional view showing the joint structure according to the present invention, and FIG. 5 is a partial enlarged cross-sectional view showing the joint structure according to the present invention. It is. 1, 2, 3... Interior parts (1... Rear corner, 2... Pillow, 3... Edge decoration material), 10, 20
...Protrusion.

Claims (1)

[Scope of utility model registration request] In a structure in which interior parts, at least one of which is made of a synthetic resin molded body, are overlapped and joined together, a protrusion linearly touches the overlapping surface of one interior component and the overlapping surface of the other interior component. A joining structure for automotive interior parts, characterized by forming a