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71. 发明专利

JPS61164140A STRAIN MEASURING DEVICE 失效
公开(公告)号：JPS61164140A
公开(公告)日：1986-07-24
申请号：JP524785
申请日：1985-01-16
申请人： KAJIMA CORP
发明人： OKAMOTO KIMIO , TANAKA HISAO , AKIYAMA YASUSHI
IPC分类号： G01B5/30 , G01N3/06
摘要： PURPOSE:To realise simple strain measurement, by fitting a pair of jigs to a sample by holding a plate spring by means of a clip. CONSTITUTION:A pair of jigs 2 has an upper gauge mark 4 which is in contact with a sample 1 and, at the same time, is composed of a stationary section 3 fitted with a dial gauge 5, lower gauge mark 9 which is mounted on the stationary section 3 through a rotation center 7 and contacted with the sample 1, and a movable section 6 equipped with an arm 9 which is in contact with the dial gauge 5. The pair of jigs 2 are coupled with each other at one ends by means of a hinge 10 and, at the same time, plate springs 11 are respectively provided at the other ends of the jigs and, when the plate springs 11 are coupled with each other by holding them by means of a clip 12, the jigs 2 are fitted to the sample 1. When the distance between the gauge marks 4 and 8, length of the arm 9 from the rotation center 7 to the gauge mark 8, and length from the rotation center 7 to the gauge 5 are respectively set to certain values, an appropriate measuring magnification is obtained. Since the sample 1 is fitted to this measuring device under a condition where the sample 1 is held from both sides by holding the plate springs 11 of the pair of jigs 2 by means of the clip 12 in such a way, the sample can be fitted and mounted through a one touch operation and strain measurement can be performed easily and quickly.

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