The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2020
Filed:
Apr. 24, 2017
Komatsu Ltd., Minato-ku, Tokyo, JP;
KOMATSU LTD., Tokyo, JP;
Abstract
Provided is a tunnel boring machine that can detect a wear condition of a disc cutter with a highly reliable configuration. The tunnel boring machine includes a measurement device. The measurement device is disposed behind the disc cutter mounted on a cutter head. The measurement device has a function as an acquisition unit that acquires cutting edge position data indicating a position of a cutting edge part of a cutter ring in the disc cutter. The tunnel boring machine further includes a DC discrimination unit that discriminates which one of a plurality of disc cutters is the disc cutter the cutting edge position data of which is acquired by the measurement device and a wear amount calculator that calculates a wear amount of the cutting edge part of the discriminated disc cutter.