SEAT ROLL INSPECTING APPARATUS, PACKAGED SEAT ROLL INSPECTING APPARATUS, SEAT ROLL, AND PACKAGED SEAT ROLL

摘要

PROBLEM TO BE SOLVED: To provide a seat roll inspecting apparatus capable of speedily and reliably detecting defective items.;SOLUTION: The inspecting apparatus is provide with both a laser light irradiation means 11 for shining laser light toward an internal space part S of a seal roll T and a light transmission amount detecting means 20 for detecting the amount of transmission of laser light through the internal space part S shone from the laser light irradiation means 11.;COPYRIGHT: (C)2004,JPO