| 摘要 |
PURPOSE:To fix a blade shaft to a blade of a film type gas meter easily to reduce cost and enable automatic assembly. CONSTITUTION:A blade 13 is constructed with a resin formed member in which a cylindrical hole 14 is provided at its end, and a blade shaft 11 is constructed with a metal member of polygon in cross-section. The length of diagonal line on the cross-section of the blade shaft 11 is formed slightly larger than the internal diameter of the hole 14 in the blade 13, their fixing portions are heated, and the blade shaft 11 is pressed closely into the hole 14 in the blade 13 to fix them. |
