| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tire side face failure detection device capable of reducing examination preparation time even in a case a size of the tire to be examined is changed. <P>SOLUTION: When taking a photograph of a side face of a tire 12 from the front using a video camera 20, an end 18A of fiber optic 18 is brought to a position close to the video camera 20 so that a specular reflection is within a photographing range on one end of the photographing range. Thereby, a specular reflection of a projected beam light is generated in a reference high luminance part, and a luminance in other high luminance part having a local slight swelling on a side face of the tire 12 becomes higher than that of a surrounding area. Thus, a failure in the side face of the tire 12 is detected by a personal computer 24 based on the distance from the reference high luminance part to the other high luminance part in a direction of a circumference of the tire, and the luminance of other high luminance parts. <P>COPYRIGHT: (C)2012,JPO&INPIT |
