| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid flow indicator which exactly indicates the flowing condition of a fluid in spite of its simple structure. SOLUTION: A casing 11 comprises a body 12 and a transparent cover plate 13. A space 14 of the body 12 forms a part of a fluid passage 16, and an indicating member 23 is supported through rubber 22 on a part of the inner wall of the space 14 and peeped from outside through the transparent cover plate 13. While no fluid flows in the passage 16, the member 23 is held vertical at a mid position owing to the elasticity of the rubber 22. When a fluid flows in the passage 16, the member 23 inclines/shifts in one direction against the elasticity of the rubber 22. |
