| 摘要 |
<p>PROBLEM TO BE SOLVED: To surely detect that a lid of a container is removed while preventing erroneous detection.SOLUTION: A transport device holds and transports a container. When a lid of the container is removed, an intermediate part of the lid is supported by the upper edge of a pressing member provided in the transport device along the height direction. An optical sensor, whose optical axis is arranged on the edge in the upper part of the upper edge and on the lid side of the upper edge or in a position closer to the lid than the edge, detects that the lid is removed.</p> |
