Title:
ROLLOVER LIMIT DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/084857
Kind Code:
A1
Abstract:
Provided is a rollover limit detection system that makes it possible to determine the risk of rollover of a structure for which the weight or weight distribution is not known in advance, the determination being made on the basis of a rollover limit height calculated by calculating as the rollover limit height the height of a limiting center of gravity at which the structure would roll over. The present invention is provided with: an acceleration sensor (13) for detecting upward and downward reciprocating motion of a loading plate (10), the mounting plate (10), springs (12), and a detection target (40) being configured so that the areas of the mounting plate (10) on both sides of a rocking central shaft (16) are each supported by the springs (12); and is also provided with a computation unit (31) for calculating as a rollover limit height lmax the height of a limiting center of gravity at which the detection target (40) mounted on the mounting plate (10) would roll over in the direction of rotation at a center-of-gravity position on the mounting plate (10) of the structure, the calculation being made on the basis of the detection result from the acceleration sensor (13) and an angle of incline (α) in the direction of rotation about the rocking central shaft (16) of the mounting plate (10) with respect to the horizontal plane when the detection target (40) is at rest.
Inventors:
WATANABE YUTAKA (JP)
Application Number:
PCT/JP2012/081322
Publication Date:
June 13, 2013
Filing Date:
December 04, 2012
Export Citation:
Assignee:
UNIV TOKYO NAT UNIV CORP (JP)
International Classes:
G01M1/12
Domestic Patent References:
| WO2008062867A1 | 2008-05-29 |
Foreign References:
| JP2011133297A | 2011-07-07 | |||
| JP2007131301A | 2007-05-31 | |||
| JPH04191179A | 1992-07-09 | |||
| JPH06265433A | 1994-09-22 | |||
| JPH1183534A | 1999-03-26 | |||
| JPS56138230A | 1981-10-28 | |||
| JP2011006068A | 2011-01-13 | |||
| JP2007186953A | 2007-07-26 |
Other References:
SHIZUKA JIN ET AL.: "Sanjigen Jushin Kenchi Riron ni Motozuku Daishajo Kamotsu no Jushin Kenchi Jikken", JAPAN DAI 20 KAI NENJI TAIKAI KOEN YOKOSHU, 7 July 2011 (2011-07-07), JAPAN, pages 112 - 113, XP008174126
See also references of EP 2790000A4
See also references of EP 2790000A4
Attorney, Agent or Firm:
HORI, Shiroyuki et al. (JP)
Ditch Shiroyuki (JP)
Ditch Shiroyuki (JP)
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Claims: