| 摘要 |
PURPOSE:To obtain an orifice fixing structure which can be used in common for an orifice made of metal and an orifice made of resin and has a simple construction. CONSTITUTION:A contact face 6 being in parallel with a wall-surface junction flange 4 of a main body 1 is provided in the middle part of a fitting flange 5 formed at the end edge of the flange 4, and a metal fitting 13 having a contact piece 11 with which a free end of the fitting flange 5 having the contact face 6 is brought into contact by fitting an orifice 2 in the main body 1 is fixed inside the lower part of a frame part 10 of the orifice 2 to be fitted in the main body 1. Outside the frame part 10 positioned outside the metal fitting 13, a hooking-fixing member 15 which can be moved in the vertical direction on the base part side and is moved upward by screwing a thumb screw 16 into the metal fitting 13 from outside the frame part 10, so that a hook part 14 on the fore end side may hitch and fix to the contact face 6 of the fitting flange 5 and hold the fitting flange with the contact piece 11 of the metal fitting 13, is provided. |
