| 摘要 |
PROBLEM TO BE SOLVED: To provide a membrane type gas meter that permits easy fitting of valves in a distribution chamber and more rapid assembling work.SOLUTION: A pair of rotation supporting shafts inserted through a pair of guide insertion holes in a distribution chamber to be fitted into fitting through-holes, formed at the base end of each of a pair of valves, are provided with valve guide members erected at the two end parts of a substantially rectangular parallelepiped shaped body part and substantially planar-shaped retaining plates, each fitted to the tip part of each of the pair of rotation supporting shafts, and the distribution chamber is so formed as to become depressed from the lower end face toward the upper end face to form an accommodating concave to accommodate the distribution chamber when the pair of rotation supporting shafts are inserted into the pair of guide insertion holes.SELECTED DRAWING: Figure 3 |
