| 摘要 |
PROBLEM TO BE SOLVED: To permit a nonfoamed liquid object to surely reach a target object so as to be adhered to it by permitting a discharge nozzle to be provided with a guide cylinder having a cylindrical guide passage and providing grooves which extend in the peripheral direction of the guide cylinder or the axis direction on the guide passage surface of the guide cylinder. SOLUTION: A spray is provided with the guide cylinder 51 at the discharge side of the nozzle hole 28A of the discharge nozzle 28. The guide cylinder 51 is provided with the cylindrical guide passage 52 for guiding the discharged liquid object from the nozzle hole 28A. At this time, the guide passage surface 52A of the guide passage 52 is enlarged in diameter in a taper state towards an outside in the axial direction of the guide cylinder 51 and is provided with the grooves 53 extending in the axial direction of the guide cylinder 51. The number of the grooves 53 on the periphery, the depth of the grooves 53, the axial direction length of them and the width of them, etc., are selected in accordance with the materiality of the liquid object concerning the shapes of a cross section in the grooves 53. Moreover, a diameter and the axial direction length of the guide passage 52, etc., are selected in accordance with the materiality of the liquid object concerning the guide passage 52. |
