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Resin molded body and method of molding the same

一种树脂成型体、成型体的技术，应用在薄料处理、运输和包装等方向，能够解决安装支座裂开、变形等问题，达到提高刚性、防止变形和损坏、刚性提高的效果

Active Publication Date: 2007-07-04
DAIKYONISHIKAWA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When attaching such a resin molded body to other parts, if the tightening force of the fastener exerts a large effect on the mounting bracket, the mounting bracket may be cracked or deformed.

Method used

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  • Resin molded body and method of molding the same
  • Resin molded body and method of molding the same
  • Resin molded body and method of molding the same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0040] 3 is a perspective view of a resin door inner panel (door module) 1 viewed from the inside of the vehicle interior. The resin door inner panel 1 constitutes an automobile as a resin molded body according to the first embodiment of the present invention. Part of the side door. The door inner panel 1 includes a door inner panel main body (hereinafter, the door inner panel main body is referred to as a panel main body) 3 as a molded body. A protruding cylindrical mounting bracket 5 is integrally provided with the panel main body 3 at each position. The mounting bracket 5 is used for installing a window glass lifting track (not shown). On the surface of the panel body 3 in FIG. 3 corresponding to the lower left corner, on the vehicle outer side, a protruding, circular, flowerpot-shaped speaker housing portion 7 is provided integrally with the panel body 3. . A plurality of circular through-holes 9 are formed around the panel body 3 at a portion near the inner side of the...

no. 2 example

[0049] FIG. 6 is a view corresponding to FIG. 1 of the door inner panel 1 as a resin molded body according to the second embodiment of the present embodiment; FIGS. 7 and 8 are molding processes corresponding to FIGS. 4 and 5 . picture.

[0050] In this second embodiment, protruding mounting seats 11 are provided integrally with the panel body 3 on both surfaces of the panel body 3 so that all the mounting seat parts 17, 19, and 21 face each other and overlap each other when viewed from above. . The mounting supports 11 jointly have a through-hole 9 .

[0051] In order to provide protrusions and opposite mounting supports 11 on both surfaces of the panel main body 3, recesses 31b, 31c are also formed in the first die 31 of the molding die 37 used in this second embodiment, and the pressing blocks 35 Same. The recesses 31b, 31c are opposed to the recesses 35a, 35b.

[0052] Since the other parts are constructed in the same manner as in the first embodiment, the same structu...

no. 3 example

[0056] FIG. 9 is a view corresponding to FIG. 1 of the door inner panel 1 as a resin molded body according to the present embodiment, that is, the third embodiment.

[0057] In the third embodiment, a solid layer 27 excluding the expansion layer 25 is formed near the outer surface of the mounting base 11 of the panel body 3 , and the solid layer 27 continuously surrounds the mounting base 11 and has a predetermined width. Not shown in the drawings, corresponding to the solid layer 27 , in the pressing block 35 of the molding die 37 used in the third embodiment, an annular convex portion is formed outside the concave portion 35b.

[0058] Since the other parts are constructed in the same manner as in the first embodiment, the same structural parts are denoted by the same symbols, and detailed descriptions of these parts are omitted. Likewise, the description of the molding method is also omitted.

[0059] With this configuration, in this third embodiment, the same operation as...

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PUM

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Abstract

A method of molding a resin molded body, wherein an annular mounting seat (11) integrally formed projectedly from one surface of a panel body (3) so as to surround a through hole (9) is formed of an inner mounting seat part (17) and an outer mounting seat part (19) formed double on the inner and outer sides and connecting mounting seat parts (21) connecting the inner mounting seat part (17) to the outer mounting seat part (19) at four positions. Skin layers (23) are formed on the surfaces of a door inner panel (1). An expansion layer (25) having a large number of voids is formed in the panel body (3). The mounting seat (11) and the panel body (3) between the inner mounting seat part (17) and the outer mounting seat part (19) are formed of a solid layer (27) without the expansion layer (25). Thus, the resin molded body having a lightweight but highly rigid mounting seat can be provided.

Description

technical field [0001] The present invention relates to a mounting seat in the shape of a protrusion provided integrally with the molded body on the main body of the molded body, a non-void and very hard skin layer is formed on the surface of the molded body, and a Resin molded body having an expanded layer with many voids and improvement of its molding method. Background technique [0002] In Patent Document 1, it is assumed that a thermoplastic resin containing fibers is poured into a fixed mold having a concave portion formed on a molding surface and a movable mold having a sliding mold inside are closed. Fill in the cavity, and during the curing process of the fiber-containing thermoplastic resin in the cavity, the slide mold is retreated in the movable mold in the direction of expanding the volume of the cavity, and the fiber-containing The thermoplastic resin expands by the elastic recovery force (rebound phenomenon) of the fibers that have been compressed due to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/56B29K105/12
CPCB29C44/0415B29C44/586Y10T428/24496Y10T428/24273Y10T428/24479
Inventor 宫地敏记
Owner DAIKYONISHIKAWA CORP
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