| 摘要 |
PROBLEM TO BE SOLVED: To achieve a pressure detecting means which can detect resin pressure with accuracy at the time of metering and has a structure strong enough to endure a load at the maximum resin pressure. SOLUTION: The first pressure detecting means for detecting a low load and the second pressure detecting means for detecting a high load are mounted as the pressure detecting means detecting the resin pressure applied to an injecting member of a screw or an injection plunger. The first pressure detecting means and the second pressure detecting means are independently arranged respectively spaced apart in the different position where the resin pressure to the injecting member can be detected. The displacement portion where a strain gauge of the first pressure detecting means is mounted is constructed such that when a load bigger than a predetermined load is given, further displacement is prevented. COPYRIGHT: (C)2006,JPO&NCIPI
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