| 摘要 |
PURPOSE:To simplify the manufacturing of a baffle device, by providing such an arrangement that the upper half and lower half of each baffle member are made asymmetrical with respect to each other to make the diameter of the upper or lower opening thereof relatively large, and baffle members inside of the member may be inserted therethrough. CONSTITUTION:A plurality of annular baffle members 1 having different diameters, each being composed of an upper half 1a having a diameter gradually decreasing upward and a lower half 1b having a diameter gradually decreasing downward, are arranged, concentrically together so that sections which are vertically overlapped with each other are formed. Further, the upper half 1a and lower half 1b of each member are made asymmetrical with respect to each other so that one of upper and lower openings 2, 2 are formed to have a relatively large diameter. With this arrangement the members 1 inside the above-mentioned member may be inserted. |
