| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluidic-type gas meter when a fluidic element is inserted into an accommodation space in a state where a clearance is being blocked. SOLUTION: A projection 12 is provided on the both outer surfaces 9 of a nozzle configuration member 5 of an element 1. A body part 34 and the element 1 are made of a synthetic resin, and an injection molding die is used for mass production. For optional combination, height (h) and width (t) of the projection 12 are preferably set to 0.3 to 1.0 mm and 0.3 to 0.5 mm, respectively. An outer-periphery part 53 and a tip part 54 of a shoulder part 10 of the element 1 are brought into contact with upstream- and downstream-side engagement parts 55 and 56 being formed in an accommodation space 33 for engaging, and accurate positioning can be made. Forming is carried out while first height Hk of an end part 61 of the shoulder part 10 is smaller than second one H of an end part 68 of the nozzle configuration member 5 byΔH=0.3 to 0.5 mm, and the difference in equipment caused by change in dimensions in extraction form the die is suppressed.
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