| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact detector having a display section which is rotated by a simple rotating mechanism. SOLUTION: The detector 10 comprises: a joint section 20 attached to piping used for fluids; a case section 30 which is attached to the joint section 20 and contains a sensor 60; a holder section 40 which is attached to the case section 30 and contains a substrate 70; and a cover section 50 which is attached to the holder section 40 and has a light shielding plate 53 formed integrally with it. In the holder section 40, an annular first projecting part 421, a plate spring 422 having a protruding part 423, and a rotation preventing part whose portion further projects along the inner circumferential side of the first projecting part 421, are formed integrally. In the case section 30, an annular first recessed part 32 for engaging with the first projecting part 421 is formed, and a groove part 33 is formed on the inner surface thereof. On the inner circumferential side of the first recessed part 32, an annular second recessed part 34 is formed, and a rising part 35 is disposed at its bottom plane. COPYRIGHT: (C)2008,JPO&INPIT
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