| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a novel spray nozzle capable of ejecting fine spray particles regardless of the type of a pressure-feeding means. <P>SOLUTION: The spray nozzle including a spray head 2 composed of an inner path r<SB POS="POST">1</SB>through which a liquid content is introduced from a container, with an annular groove 4 communicating with the path r<SB POS="POST">1</SB>and opening from a side face 3f, and a cylinder member 5 disposed in an inside area of the annular groove 4; and a circumferential wall 6b fitted to an outer circumferential face f<SB POS="POST">1</SB>of the cylinder member 5 disposed in the head 2 to spray the liquid content flowing between the circumferential wall 6b and the cylinder member 5 via a through-hole 6c formed in a separation wall 6a, from a merging space r<SB POS="POST">5</SB>constituting a merging part of a plurality of spin flow paths r<SB POS="POST">4</SB>formed between the cylinder member 5 and the separation wall 6a covering the end face 5e of the cylinder member 5, is characterized in that the diameter Da of the through-hole 6c relative to the diameter Dc of the outer annular edge of the merging space r<SB POS="POST">5</SB>is made to satisfy the following condition: 0.10×Dc≤Da<0.20×Dc. <P>COPYRIGHT: (C)2012,JPO&INPIT |
