Title:
GAUGE FOR ESTIMATING LIFE OF STRUCTURE AND METHOD OF ESTIMATE WITH SAID GAUGE
Document Type and Number:
WIPO Patent Application WO/1991/019968
Kind Code:
A1
Abstract:
A novel gauge for estimating the life of a structure such as a frame of a dump truck and a method capable of easily estimating the life of a structure by the use of said gauge without the need of troublesome calculation. The gauge is provided with annular parts (5, 6) of a similar shape at opposite ends and a band-like connecting part (7) integrally connecting the annular parts and having opposing V-shaped cutaway parts (8, 8) at the mid-portion, and a gauge (2, 3, or 4) comprising a thin gauge proper shorter in life than the structure (1) and a crack gauge (9) attached to a part between said cutaway parts (8, 8) is fixed to a required position on the structure by welding or the like, whereby a breaking time is determined from measured variation in resistance of the crack gauge and the life of the structure (1) is estimated on the basis of said breaking time.
Inventors:
Kajino, Katsuhiro
Application Number:
PCT/JP1991/000793
Publication Date:
December 26, 1991
Filing Date:
June 12, 1991
Export Citation:
Assignee:
KABUSHIKI KAISHA KOMATSU SEISAKUSHO KAJINO, Katsuhiro.
International Classes:
G01M99/00; G01B7/16; G01M7/02; G01N3/32; G01N3/06; (IPC1-7): G01N3/32
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