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Title:
BOLT AXIAL FORCE CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2011230254
Kind Code:
A
Abstract:

To provide a bolt axial force control system capable of controlling axial force of a bolt in fastening construction of the bolt.

This bolt axial force control system includes an axial force control bolt for arranging a strain sensor and an axial force detecting part inside the bolt, an axial force recording-transmission part for recording and transmitting the axial force detected by the axial force detecting part by radio transmission by being converted into data, a fastening control wrench having a connecting part for connecting the axial force detecting part and the axial force recording-transmission part, and a radio receiving module for receiving and displaying the data on the axial force transmitted by the radio transmission. The axial force detecting part and the axial force recording-transmission part are connected via the fastening control wrench, the axial force control bolt is fastened by the fastening control wrench, the strain sensor converts the axial force of the fastened axial force control bolt into an electric signal, the axial force detecting part detects and outputs the converted electric signal, the axial force recording-transmission part converts the output into data to be transmitted by the radio transmission, the radio receiving module receives and displays the transmitted data on the axial force, and a fastening state of the axial force control bolt is inspected.


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Inventors:
NISHIDA EIJI
YAMAMOTO YUZO
HASHIMOTO FUMIYOSHI
YAMADA SHIGERU
Application Number:
JP2010103962A
Publication Date:
November 17, 2011
Filing Date:
April 28, 2010
Export Citation:
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Assignee:
ASAHI ELECTRIC WORKS LTD
WAIMACHIKKU KK
International Classes:
B25B23/14; F16B31/02
Domestic Patent References:
JP2006320984A2006-11-30
JP2009107114A2009-05-21
JPH04146086A1992-05-20
JPH06347349A1994-12-22
JPS4843944Y11973-12-18
JPH1086074A1998-04-07
Foreign References:
US20080178713A12008-07-31
US20030105599A12003-06-05
US4294122A1981-10-13
US7412898B12008-08-19
US8521448B12013-08-27
Attorney, Agent or Firm:
Makoto Hagiwara



 
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