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Title:
RAIL OVERHANG DETECTION SYSTEM
Document Type and Number:
Japanese Patent JP2020118003
Kind Code:
A
Abstract:
To provide a rail overhang detection system capable of instantly detecting overhangs, depressions, etc. of a rail with a simple structure, and constantly monitoring overhangs, depressions, etc. of the rail regardless of a train operation.SOLUTION: A laser rangefinder 10 and a target 11 are arranged along a laying direction of a rail 1. A plurality of laser beam passage holes 20 for passing a laser beam 12 therethrough are arranged between the laser rangefinder 10 and the target 11 via a bracket 30 so as not to block the laser beam 12. The bracket 30 is integrated with the bottom of the rail 1. Further, upon determining that the measurement data is abnormal, the laser rangefinder 10 transmits an alarm signal from a transmission unit 40 to a server 70 via a bidirectional telecommunication line 60. The server 70 that has received the alarm signal sends an e-mail indicating the fact to a predetermined administrator.SELECTED DRAWING: Figure 1

Inventors:
OKUMURA YUKI
GOTO YU
SUZUKI SHINTA
SATO TETSUO
OGAWA KAZUHIRO
TSUCHIYA JUNICHI
Application Number:
JP2019012495A
Publication Date:
August 06, 2020
Filing Date:
January 28, 2019
Export Citation:
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Assignee:
HIGASHI NIPPON RYOKAKU TETSUDO
KEISOKU NET SERVICE KK
International Classes:
E01B35/00; G01B11/16
Domestic Patent References:
JPS5239157U1977-03-19
JP2011137750A2011-07-14
JP2013097698A2013-05-20
JP2004227045A2004-08-12
JP2002099903A2002-04-05
JP3194871U2014-12-11
JPS58171901U1983-11-17
JP2006258613A2006-09-28
JP2003232611A2003-08-22
JP2003278102A2003-10-02
JPS63177008A1988-07-21
JP2012102498A2012-05-31
JP2011094415A2011-05-12
JPH11247108A1999-09-14
JP2018009394A2018-01-18
Foreign References:
US5671540A1997-09-30
Attorney, Agent or Firm:
Motonari Tomisaki
Machida Mitsunobu
Tomisaki you



 
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