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Title:
HANDLE-SHAPED MOLDED PRODUCT
Document Type and Number:
Japanese Patent JPH1128740
Kind Code:
A
Abstract:

To increase the strength of an attaching part and to enhance the appearance of a grip part by providing a faithful structure to all of thick-walled attaching parts and providing a hollow structure to a thick-walled grip part.

In a handle molded product wherein a thick-walled grip part and an attaching part are integrated, the thick-walled attaching part has a faithful structure and the thick-walled grip part has a hollow structure. The cavity 60 provided to a mold is constituted of an attaching part forming cavity region formed by a mold part having to form the attaching part having a gate provided thereto and a cavity region other than such region. Compressed gas is introduced into the cavity 60 while injection pressure is held to a predetermined value or in such a state that the resin gate is mechanically closed. The molten resin present in the cavity region other than the attaching part forming cavity region fills the cavity region not yet filled With the molten resin. As a result, a continuous hollow part is formed to the grip part.


Inventors:
Yamazaki, Kunio
Kaneishi, Akimasa
Otsuki, Ryoji
Toyoda, Akinori
Application Number:
JP1998000167188
Publication Date:
February 02, 1999
Filing Date:
June 15, 1998
Export Citation:
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Assignee:
MITSUBISHI GAS CHEM CO INC
International Classes:
A21D15/00; A21D2/34; A23G3/00; A23G3/34; A23G3/48; A23G3/50; A23L17/40; (IPC1-7): A21D2/34; A21D15/00; A23G3/00; A23L1/33



 
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