US 12,345,871 B2
Inspection cable guide mechanism, driving device, inspection cable insertion jig, and gas turbine inspection system including these
Yasutaka Fuke, Tokyo (JP); Hirone Komatsu, Tokyo (JP); Takashi Matsuzawa, Tokyo (JP); Shin Asano, Tokyo (JP); Kotaro Tadano, Tokyo (JP); Koshiro Irie, Tokyo (JP); and Yoichi Sato, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP); and TOKYO INSTITUTE OF TECHNOLOGY, Tokyo (JP)
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP); and TOKYO INSTITUTE OF TECHNOLOGY, Tokyo (JP)
Filed on Jan. 30, 2023, as Appl. No. 18/103,181.
Claims priority of application No. 2022-014939 (JP), filed on Feb. 2, 2022.
Prior Publication US 2023/0280582 A1, Sep. 7, 2023
Int. Cl. G02B 23/24 (2006.01); F01D 21/00 (2006.01); G01M 15/14 (2006.01); G01N 21/954 (2006.01)
CPC G02B 23/2492 (2013.01) [F01D 21/003 (2013.01); G01M 15/14 (2013.01); G01N 21/954 (2013.01); F05D 2270/804 (2013.01); G01N 2021/9542 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An inspection cable guide mechanism comprising:
a heat-resistant sheath having flexibility through which an inspection cable with a tip on which a sensor is provided is allowed to be inserted and cooling air is allowed to flow toward the tip through a gap between the heat-resistant sheath and the inspection cable therein;
a segment stacked body configured by stacking three or more segments having heat resistance and covering the heat-resistant sheath from the outside in a direction in which a centerline of the inspection cable extends; and
a plurality of wires disposed around the heat-resistant sheath and extending along the centerline,
wherein one segment among the segments other than segments of the segments on both ends in the segment stacked body is swingable with respect to two segments adjacent to the one segment in the centerline direction about swing axes extending in a direction perpendicular to the centerline,
the two swing axes that become centers when the one segment swings with respect to the two segments are perpendicular to each other when viewed in the centerline direction, and
one end of each of the wires is fixed to one of the segments in the segment stacked body.