| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an application solution feeding hose capable of preventing the application solution from remaining on the hose wall surface and hard to fold. SOLUTION: A flexible hose 26 having a threefold structure is composed by covering a Teflon (R) hose 35 with cover hoses 36 and 37. The Teflon (R) hose 35 is formed into a tubular shape having 8-10 mm inside diameter 1-1.5 mm thickness and a smoothed inside surface. The inner cover hose 36 is formed with a blade hose made of polyvinyl chloride having 15 mm inside diameter and 1.5 mm thickness. The outer cover hose 37 is formed with a blade hose made of polyvinyl chloride having 25 mm inside diameter and 2 mm thickness. The length of a joint nut 41 of a hose joint 38 of the flexible hose 26 is set to 70 mm or more, and the end parts of the respective hoses 35, 36 and 37 are so disposed as to separate from one another. The application solution is prevented from remaining on the hose wall surface by means of the Teflon (R) hose 35. The external force applied to the hose is dispersed by the threefold structure so that the hose is hard to be folded.</p> |
