| 摘要 |
PROBLEM TO BE SOLVED: To prevent clogging without providing small holes on a component requiring sizing accuracy by providing a wall for cutting a liquid supply path on a bush and by forming a plurality of small holes which are arranged side by side and which are smaller than the minimum path width of the liquid supply path from a tube to a liquid exit of a discharging part. SOLUTION: A wall 34 having a plurality of small holes 35 which are smaller than the minimum path width of a liquid supply path 34 extending from a tube 31 to a liquid exit of a discharging part is provided on a bush 33 provided at an end of the tube 31. Therefore, foreign matters which are larger than a diameter of the small holes 35 and may cause clogging are caught and filtered by the small holes 35 but not enter the discharge part, while matters which are not caught pass through the minimum path width of the liquid supply path 42 from the tube 31 to the liquid exit of the discharge part, thereby causing no clogging. Since the plurality of small holes 35 are provided side by side, if some of them clog with the foreign matters caught, clogging can be prevented without increasing a component. |
