| 摘要 |
PURPOSE: To provide a ventilator in which a clamping screw can be temporarily clamped by a small force without preparing a separate component and which is not deformed even if the screw is strongly clamped to increase the clamping force of a body. CONSTITUTION: A thin film 10 in which an inlet hole 9a and an outlet hole 9b inserted with a clamping screw 8 are provided at a flange 7 and a small hole 20 which is smaller than the diameter of the screw 8 is provided substantially at the center of a boundary between the holes 9a and 9b is formed, and a fixing hole 9 is formed by reducing the diameter of the hole 9b smaller than that of the head 8a of the screw 8. |
