JPH04135960U - Plastic moldings with patterned metal layers - Google Patents

Abstract

(57) [Summary] [Structure] A hole 3 is provided in a plastic molded product 2' having a patterned metal layer on the surface, and a holding jig 1' is passed through the hole 3 and held. [Effect] Even plastic molded products with complex three-dimensional shapes can be easily held, and the plating pretreatment and immersion treatment steps in the solution during plating treatment can be carried out smoothly.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention consists of a housing, circuit board, and circuit part whose surfaces are partially metal-treated by plating, etc. This relates to plastic molded products such as products, connectors, and electromagnetic shielding parts. .

0002

[Conventional technology]

In recent years, metals with a patterned metal layer on the surface have been used as electrical circuit patterns, etc. Plastic molded products meet various demands such as weight reduction, space saving, and cost reduction. It is attracting attention as a.

0003 In the production of plastic molded products with a patterned metal layer on the surface, for example, For example, see the description in JP-A-63-50482 and JP-A-1-207989. Electroless plating and its pretreatment are always performed to ensure that The smell of these processes Since the molded product is immersed in the solution, it is always necessary to hold the molded product in some way. There is a point.

0004 Printed wiring boards are a type of board that undergoes similar processing, but since they are flat boards, It is attached to a holding jig (rack) 1 as shown in FIG. 4 and immersed in a solution. death However, in the case of plastic molded products, if it is a flat plate or something similar, However, it cannot be used with complex three-dimensional shapes, and conventionally It was held in place by holding it in place with something like a stick.

[0005]

[Problem that the idea aims to solve]

However, when using clips, the molded product may come off during immersion and fall into the processing solution. In many cases, it becomes unusable. On the other hand, when using a dedicated rack, it is versatile. It is necessary to prepare a number of racks that are suitable for the type of molded product, and There were manufacturing problems, such as if the molded product was no longer needed, the rack was also no longer needed.

[0006] The purpose of the present invention is to eliminate the drawbacks of the prior art described above, and to provide an easy-to-maintain plus Our goal is to provide molded products.

[0007]

[Means and actions for solving the problem]

The present invention is characterized by a holding hole provided on the plastic molded product, and Therefore, the plating pretreatment and plating process are facilitated.

[0008] In the present invention, the size and shape of the hole depend on the holding jig. Therefore, the hole The shape may be a circle, an ellipse, a triangle, a polygon including a square, or any other shape. In addition, processing liquid The size of the hole must be larger than the size of the holding jig to allow the product to move inside. If you want to secure it firmly, the perfect size is better. Also in that case A shape other than a circle is best.

[0009] Generally, a through hole is used for the hole, but something like a clip is used as a holding jig. If it is, it does not necessarily have to be a through hole.

0010 The number of holes may be one, two, or even three or more, but the product If it is to be completely fixed, it is desirable to have two or more.

[0011] The position of the hole depends on the shape of the product and the position of the wiring pattern, and there may be problems due to the product specifications. If not, it can be placed at any position, but make sure that the holding jig does not affect the wiring pattern. It is necessary to do so.

0012 Note that the holes do not necessarily have to be provided on the original molded product; for example, holes may be provided on the sides. Protrusions are provided during molding, and those parts are cut off when they are no longer needed after the final process. It can also be cut into a finished product.

[0013]

【Example】 Example 1 As shown in Fig. 1, a hole 3 is provided in the plastic molded product 2', and a holding tool Hold it through tool 1'. The size of the hole is 1cm x 2cm, and the diameter of the holding jig is φ1mm. larger, molded article 2' can move freely in the solution as shown by arrow A .

[0014] Example 2 As shown in Figure 2, a square hole 3' is provided in the plastic molded product 2', and a holding jig is 1'' through this hole 3' and hold it. The hole size is 1.5 mm square, and a holding jig is used. uses a 1.4 mm square mandrel, and the molded product is almost fixed and does not move in the solution.

[0015] Example 3 As shown in Figure 3, there are round holes 3''' in two places on the plastic molded product 2'''. A holding jig 1''' is passed through the protrusion 4 and held there. The hole diameter is φ1. The diameter of the 5mm holding jig is φ1.0mm, but the molded product is held in two places. 2´´´ does not move.

[0016]

[Effect of the idea]

As explained above, according to the present invention, plastic molded products with complex three-dimensional shapes can be It can be easily held, and it can be used in pre-plating treatment and immersion treatment process in solution during plating treatment. can be done smoothly.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a plastic molded product having a patterned metal layer of the present invention.

FIG. 2 is a perspective view showing another embodiment of the present invention.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional printed wiring board holding jig.

[Explanation of symbols]

1, 1', 1'', 1''' Holding jig 2 Printed wiring board 2´, 2´´, 2´´´ Plastic molded products 3, 3', 3'' holding hole 4 Protrusion

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Hideki Asano Hitachi, 5-1-1 Hidakacho, Hitachi City, Ibaraki Prefecture Electric Cable Co., Ltd. Electric Wire Research Institute

Claims (4)

[Scope of utility model registration request] 1. A plastic molded article having a patterned metal layer on its surface, wherein a hole is provided on the plastic molded article to which a holding jig for holding and transporting the molded article can be attached. 2. The plastic molded article according to claim 1, wherein the hole is a hole exclusively for attaching a holding jig. 3. The plastic molded product according to claim 1, wherein the hole and a predetermined area around the hole are prohibited areas where no conductor is provided. 4. The plastic molded article according to claim 1, wherein a plurality of said holes are provided at different predetermined positions.