REMOTE MONITORING DEVICE FOR PIPE VIBRATION-PROOF UNIT

Japanese Patent JP2016183693

A

PROBLEM TO BE SOLVED: To provide means for confirming a relative displacement of a rod in respect to a cylinder member at a remote position without going to their installation site.SOLUTION: A remote monitoring device 1 for detecting a relative displacement amount of a rod in respect to a cylinder of a hydraulic vibration restrictor and detecting a displacement of a pipe comprises a rotary mechanism 3 for converting a linear relative displacement of the rod into a rotary displacement, a potentiometer 9 for generating an electrical output corresponding to a rotary displacement of this rotary mechanism 3, a detecting circuit 10a for generating an alert signal at a prescribed threshold of output of this potentiometer 9 and a communication instrument 4 for transmitting this alert signal of the detecting circuit 10. The rotary mechanism 3 includes a pulley 6 for feeding out a working wire in response to a rod feeding-in or feeding-out motion of the rod and winding-up while it is rotationally biased in a direction in which a wire 7 fixed to the rod is wound up. The potentiometer 9 rotating with the pulley 6 generates a voltage output in response to the rotary displacement and causes the detecting circuit 10a to output the alert signal.SELECTED DRAWING: Figure 2

MIYODA TATSUYA
NAKATSU MASANOBU

JP2015063180A

October 20, 2016

March 25, 2015

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SANWA TEKKI CORP

F16F9/56; F17D5/02; G21C17/003; G21D1/00

JPH0389195A	1991-04-15
JPH10196707A	1998-07-31
JPH0540003A	1993-02-19
JPH01307603A	1989-12-12
JPS56174001U	1981-12-22
JP2001214633A	2001-08-10

US4550589A

1985-11-05

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