| 摘要 |
PROBLEM TO BE SOLVED: To provide a valve opening/closing display device appropriately displaying the opened/closed state of a valve at that time from the top face side even when an rotating handle is rotated in a range of 360°or more. SOLUTION: The valve opening/closing display device A includes a spiral tape 3 disposed to rotate integrally with the rotating handle 1, and a storage display body 4 having an opening 18 in the top face 4a to put the spiral tape 3 in and out. The rotating handle 1 is rotatably fitted to the unrotatable storage display body 4 to cover the top face 4a. When the rotating handle 1 is in a closed region, the top face 4a of the storage display body 4 is visualized through a viewing window 2, and when the rotating handle 1 is in an open region, a part of the spiral tape 3 pulled out of the opening 18 of the storage display body 4 is visualized through the viewing window 2. COPYRIGHT: (C)2011,JPO&INPIT
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