| 摘要 |
PURPOSE:To reduce the costs of facilities by supporting both lengthwise ends of channeling airfoils on guide members which move the channeling airfoils horizontally in parallel between in-use positions and disuse positions without changing their attitudes. CONSTITUTION:Channeling airfoils 15-18 are supported on guide members so that they are moved from in-use position to disuse positions or reversely without changing their attitudes. The1st and 2nd channeling airfoils 15 and 16, and the 3rd and 4th channeling airfoils 17 and 18 are moved easily and manually in the width direction of a laboratory by rolling guide rollers 19 and 20, and 21 and 22 along guide rails 25 and 26, and 27 and 28. Therefore, the construction costs of the facilities are reduced without any large-sized winding means unlike a conventional device. |
