JPH0585620U - Mounting structure for synthetic resin products - Google Patents

Abstract

(57) [Summary] (Revised) [Purpose] A structure for mounting a synthetic resin product and an attached product, which eliminates the sagging of the synthetic resin melt when crimping the synthetic resin product and the attached product. (EN) Provided is a mounting structure for a synthetic resin product, which secures the mounting strength with and prevents damage to the mounting portion. [Structure] A cylindrical boss 11 projecting from the surface of a synthetic resin product 10 is inserted into an insertion hole 21 formed in an article 20 to be attached, and the projecting end is melted to be caulked to the article 20 to be attached. In the synthetic resin product mounting structure for mounting the synthetic resin product 10, a partition member for partitioning the interior of the boss 11 or the insertion hole 21 is formed.
When the partition member 21a is formed in the insertion hole 21, since the boss end is guided through the insertion hole 21, the notch 11a having a desired length is previously formed at the position of the boss end corresponding to the partition member 21a. Need to be formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure for mounting a synthetic resin product to a mounting target, and specifically, a cylindrical boss protruding from a mounting part of the synthetic resin product is formed in a mating mounting target. The present invention relates to a mounting structure for mounting a synthetic resin product on an article to be mounted by crimping the projecting end of the boss while melting and deforming the boss.

[0002]

[Prior Art]

 Conventionally, as disclosed in, for example, Japanese Utility Model Publication No. 61-122942 and Japanese Utility Model Publication No. 55-41526, when an ornament board is attached to an automobile garnish, an interior material is attached to an inner panel, a fan, etc. When attaching the synthetic resin decorative plate of No. 1 to the base, insert the cylindrical boss 1a protruding from the surface of the mounting portion of the synthetic resin product 1 into the insertion hole 2a of the attached product 2 as shown in FIG. At the same time as the tip of the boss 1a protruding through the hole 2a is heated and pressed to be melted and deformed, the synthetic resin product 1 is attached to the attached product 2 by being welded to the attached product.

[0003]

[Problems to be solved by the device]

 However, since the conventional boss and the insertion hole have a simple shape that has not been devised, when the boss is heated and pressed to caulk, the tip caulking surface of the boss 1a as shown in FIG. The central part flows into the boss cylinder and hangs down to form a dent on the surface, which significantly reduces the mounting strength between the synthetic resin product 1 and the product 2 to be mounted, and the mounting part is easily damaged. .

The present invention has been made to solve the above problems, and its purpose is to eliminate the sagging during the crimping and to secure the mounting strength between the synthetic resin product and the mounted product to mount the product. Another object is to provide a mounting structure for synthetic resin products that avoids damage to parts.

[0005]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention inserts a cylindrical boss projecting from the surface of a synthetic resin product into an insertion hole formed in the mounted product, and crimps by melting the projecting end. In a synthetic resin product mounting structure for mounting a synthetic resin product on an article to be mounted, a partition member for partitioning the inside is formed on either the boss or the insertion hole.

Of course, when the partition member is formed in the insertion hole, the boss end is inserted into the insertion hole, so that the boss end corresponding to the partition member has a desired length in advance. It is necessary to form a notch.

[0007]

[Action]

 At the mounting portion of the synthetic resin molded product, for example, a boss having a cylindrical shape whose circumference is divided into two by a notch is projected. An insertion hole for inserting the boss is formed in one of the attached products. A partition member, which is a feature of the present invention, is formed in the insertion hole so as to divide the insertion hole into two, and the boss can be easily inserted into the insertion hole due to the presence of the partition member due to the notch. You can

[0008] When attaching the attached product to the synthetic resin product, the partition member formed in the insertion hole is inserted into the notch of the boss, and the boss is inserted into the insertion hole. Next, the boss end protruding from the insertion hole is heated and pressed in accordance with a conventional method to be melted while being caulked and attached. At this time, according to the present invention, the melted portion at the tip of the boss is supported from below by the partition member, and it is extremely unlikely that the molten portion hangs down inside the boss, ensuring the strength of the crimped portion and the crimped surface of the boss. No dent is formed in the center, improving the mounting quality in terms of appearance.

[0009]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. 1 to 2 show a first embodiment in which the present invention is applied to a mounting structure of a center pillar garnish and a slide plate of an automobile, and FIGS. 3 to 4 show a mounting structure of a fan base and a decorative plate of the present invention. FIG. 5 to FIG. 6 show a modified example of the first embodiment shown in FIG. 1 to FIG. 2 in which the partition member forming the characteristic part of the present invention is attached. It shows an example of the case where it is formed in the insertion hole of the product.

First, the embodiment shown in FIGS. 1 and 2 will be described. In these figures, reference numeral 10 is a center pillar garnish which is a synthetic resin product of the present invention, and reference numeral 20 is a slide plate which is an attached product attached to the center pillar garnish 10.

As shown in FIG. 1, the center pillar garnish 10 is provided with a boss 11 having a cylindrical shape and a circumferentially divided boss 11 by a notch 11a, as shown in FIG. Although not shown, the protruding end of the notch 11 is formed to open so that the notch width gradually increases toward the tip, and a partition member 21a, which will be described later, formed in the insertion hole 21 of the slide plate 20 can be easily formed. It is adapted to fit in the notch 11.

On the other hand, an insertion hole 21 for inserting the boss 11 is formed in the center pillar garnish attachment portion of the slide plate 20 attached to the center pillar garnish 10, as shown in FIG. A partition member 21a, which is a feature of the present invention, is formed in the insertion hole 21 so as to divide the insertion hole 21 into two, and the boss 11 is inserted through the insertion hole regardless of the presence of the partition member 21a. 21 for easy insertion.

When the slide plate 20 is attached to the center pillar garnish 10, the partition member 21 a formed in the insertion hole 21 is inserted into the notch 11 a of the boss 11 so that the boss 11 is inserted into the insertion hole 21. Then, the end protruding from the insertion hole 21 is heated and pressed in accordance with a conventional method to be melted, and caulked as shown in FIG. 2 to complete the attachment. At this time, according to the present invention, the melted portion at the tip of the boss is supported by the partition member 21 from below, and it is extremely unlikely that the melted portion hangs down inside the boss 11 to secure the strength of the caulking portion and to secure the strength of the boss 11. No dent is formed in the center of the crimped surface, improving the mounting quality in terms of appearance.

FIGS. 5 to 6 show an example in which the above-described first embodiment is modified. According to this modification, the notch 11 a of the boss 11 is provided at one place, and the boss insertion hole 21 is provided. The partition member 21a is formed in a cantilever shape. In this example, since only one notch 11a is formed in the boss 11, the reduction in boss strength due to the notch 11a is less than in the first embodiment.

The second embodiment of the present invention shown in FIG. 3 and FIG. 4 is essentially the same as the first embodiment and its mounting structure, but in this embodiment, the makeup that is the mounted product is the same. The portion of the insertion hole 121 of the plate 120 has a cylindrical shape, and is formed thicker than the other flat surface portions to increase the strength of the peripheral portion of the insertion hole 121. In the figure, reference numeral 110 is a fan base, 111 is a boss, 111a is a notch, and 121a is a partition member.

7 and 8 show a third embodiment of the present invention. In the third embodiment, the partition members 21a and 121a are provided in the insertion holes 21 and 121, whereas the insertion hole 221 is used in the third embodiment. Is formed as a simple circular hole, and a partition member 211a is formed in the hollow portion of the boss 211 inserted into the insertion hole 221. With this configuration, the notch is removed from the boss 211, and the boss strength increases. Particularly, when the partition member 211a is formed in the entire height direction of the boss 211 as in the illustrated example, the partition member 211a has a function of a reinforcing member, so that the boss strength is further increased. In the figure, reference numeral 210 indicates a synthetic resin product and 220 indicates an attached product.

[0017]

[Effect of the device]

 As is clear from the above description, according to the synthetic resin product mounting structure of the present invention, the partition member is formed in the boss insertion hole or the cylindrical boss of either the synthetic resin product to be mounted or the mounted product. Therefore, when inserting the boss into the insertion hole and crimping while heating the tip of the boss for fusion mounting, the crimped portion of the boss does not hang down inside the boss, and there is no dent on the crimped surface. The tightening strength is secured and there is no problem in appearance on the mounting surface.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a mounting structure according to a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of a main part at the end of attachment by the attachment structure.

FIG. 3 is an exploded perspective view showing a mounting structure according to a second embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of the same mounting structure at the end of mounting.

FIG. 5 is an exploded perspective view of a mounting structure showing a modification of the first embodiment.

FIG. 6 is a vertical cross-sectional view at the end of attachment according to the modification.

FIG. 7 is an exploded perspective view showing a mounting structure according to a third embodiment of the present invention.

FIG. 8 is a vertical cross-sectional view at the end of attachment by the same attachment structure.

FIG. 9 is a vertical cross-sectional view at the end of attachment by the conventional attachment structure.

[Explanation of symbols]

 1,10,110,210 Synthetic resin products 1a, 11,111,211 Boss 11a, 111a Notch 211a Partition member 2,20,120,220 Attached product 2a, 21,121,221 Insertion hole 21a, 121a Partition member

Claims (1)

[Scope of utility model registration request] 1. A synthetic resin product attached to an article to be attached by inserting a cylindrical boss projecting from the surface of the synthetic resin article into an insertion hole formed in the article to be attached and melting the protruding end to caulk the article. The mounting structure for a synthetic resin product according to claim 1, wherein a partition member for partitioning the inside is formed on one of the boss and the insertion hole.