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Method for making built-in finished product, built-in nut, and built-in finished product

A technology of insert nut and insert molding, which is used in the manufacture of insert molding products, and the fields of insert nuts and insert molding products. It can solve problems such as poor bolt tightening and achieve the effect of preventing wrong installation.

Inactive Publication Date: 2012-10-31
AISAN IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since such spread of resin causes poor fastening of bolts to embedded nuts, countermeasures to this problem are expected.

Method used

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  • Method for making built-in finished product, built-in nut, and built-in finished product
  • Method for making built-in finished product, built-in nut, and built-in finished product
  • Method for making built-in finished product, built-in nut, and built-in finished product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Embodiments of the present invention will be described below using the drawings.

[0022] One embodiment

[0023] Since this embodiment is applied to an insert-molded product that is one component of a resin-made intake manifold, a method for manufacturing the insert-molded product will be described after explaining the outline of the intake manifold.

[0024] An overview of the intake manifold will be described. In this embodiment, an intake manifold used for an inline four-cylinder engine is exemplified. Figure 8 is a front view showing the intake manifold, Figure 9 It is an exploded side view showing the intake manifold.

[0025] Such as Figure 8 As shown, the intake manifold 10 is four members 11-14 divided into four parts along the front-rear direction by means of vibration welding and other bonding methods (refer to Figure 9 ) combined. That is, if Figure 9 As shown, the intake manifold 10 includes a first member 11 located in the center, and the fro...

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PUM

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Abstract

The invention provides a method for making built-in finished product, a built-in nut, and a built-in finished product. The invention can prevent the resin from spreading into the gap between the pin member and threaded hole of the built-in nut by utilizing the resin to block the opening end face of the top side of the built-in nut. The die assembling is carried out in a state that makes the built-in nut (40) and a pin member (50) on the molding surface (34a) of die cavity (36) arranged in the die (30) be engaged to support the built-in nut, with the die cavity being injected and filled with resin, thereby forming the built-in finished product with a built-in nut. The built-in nut is provided with a straight hole portion (45) at the top portion, with the internal diameter of the straight hole portion (45) being equal to or less than that of the threaded hole portion (44). When the built-in nut is embedded in the pin member, the straight hole portion is jogged to the top end portion of the pin member. The built-in molding is carried out by utilizing the resin to block the opening end face at the top side of the built-in nut.

Description

technical field [0001] The present invention relates to a manufacturing method of an insert molded product, an insert nut, and an insert molded product. Background technique [0002] As a method of manufacturing an insert molded product, there is, for example, the method described in Patent Document 1 (hereinafter, referred to as a conventional example). In the conventional example, the mold is clamped in a state where the insert nut is supported by the pin member by fitting the insert nut with the pin member provided on the molding surface of the cavity of the mold, and injection is made into the cavity, Resin (molten resin) is filled to form an insert-molded product with insert-molded nuts. The insert nut has a threaded hole over its entire length, and is insert-molded so that the opening end surface of the threaded hole is closed with resin. [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 6-47773 [0004] According to the conventional example desc...

Claims

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Application Information

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IPC IPC(8): B29C45/14B29L1/00
Inventor 松川将三大志万博章
Owner AISAN IND CO LTD
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