Title:
TIGHTENING TORQUE MEASUREMENT DEVICE AND TIGHTENING TORQUE MEASUREMENT METHOD
Document Type and Number:
Japanese Patent JP2018059779
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a torque measurement device capable of measuring tightening torque between a pipe which has been already arranged and a joint.SOLUTION: A tightening torque measurement device for measuring tightening torque between a pipe and a joint includes: a stress measurement part for measuring stress on a screw part of the joint, which is tightened after the pipe is inserted; and a tightening torque calculation part for calculating the tightening torque from the stress measured by the stress measurement part on the basis of the relation between the pre-obtained stress on the screw part and the tightening torque.SELECTED DRAWING: Figure 1
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Inventors:
NISHIMURA TOMOAKI
Application Number:
JP2016196599A
Publication Date:
April 12, 2018
Filing Date:
October 04, 2016
Export Citation:
Assignee:
TOKYO GAS CO LTD
International Classes:
G01L5/24
Domestic Patent References:
| JPH02212077A | 1990-08-23 | |||
| JPH04344435A | 1992-12-01 | |||
| JP2008149834A | 2008-07-03 | |||
| JPH0351731A | 1991-03-06 | |||
| JPH10268773A | 1998-10-09 | |||
| JPS62500532A | 1987-03-05 |
Foreign References:
| US3314156A | 1967-04-18 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito