| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the subject nozzle bar ensuring an O-ring to be easily replaceable without the need of disassembling the lower portion from the upper portion. SOLUTION: This nozzle bar has an upper portion l extended over the operational width for a web and a lower portion 2 fluid-tightly fixed thereto, a nozzle sheet with a hole for the nozzle is borne via an O-ring 11 for sealing use upon the lower portion 2, and the inside of the upper portion 1 is provided with a groove for repairing use with its height designed to be somewhat greater than the thickness of the O-ring facing each other to the bearing groove for the O-ring of the lower portion 2 throughout the length and width; the bearing groove is designed to be greater than the diameter of the O-ring 12 on both edge faces of this nozzle bar in the direction of the side end of the edge face, and spacers for the O-ring in the longitudinal sheet are fixed canto the longitudinal sheet at an interval; wherein the interval lies beyond the terminal position of the O-ring 12 inside the lower portion.</p> |
