| 摘要 |
PROBLEM TO BE SOLVED: To obtain a lid for sealing an opening part against an environment which is easy to manufacture and can be opened repeatedly, by adapting a path to be aligned with the opening part of a collection container when a ball is at an open position, and not to be aligned with the opening part when the ball is at a close position. SOLUTION: When a ball 20 is rotated to a position where the ball is perfectly opened, an edge part of a surface 27 in touch with an environment which is a shift part between the whole spherical shape of the ball 20 and the surface 27 rides over a projection part 42a of a dimple 42, thereby feeding back to an operator a click stop by the sound and sense of touch and informing that the ball 20 is completely rotated in a socket 40. At this open position, a first opening part 23 of the ball 20 is aligned with a first opening part 43 of the socket 40, and similarly a second opening part 24 of the ball 20 is aligned with a second opening part 44 of the socket 40, so that a path 21 penetrating the ball 20 connects an external environment with an upper chamber 115 of a collection tube 100. The arrangement enables insertion of a probe or secures a path through which a liquid contained in the upper chamber 115 is poured via the path 21. |
