| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a complicate work of connecting a tube by letting a positioning means catch and hold thereby positioning the tube, and setting a noncontact part between a catch face and the tube continuously in a circumferential direction of the tube which has a size not to generate a capillary phenomenon in a longitudinal direction to the tube. SOLUTION: A rib 37 projecting inward is set to the vicinity of an outlet of a guide groove 32 of a tube-positioning part 31, thereby constituting a rib form part 33. When a tube 21 is fitted to the guide groove 32 of the tube- positioning part 31, a required gap 38 is formed by the rib 37 to an outer circumferential face of the tube 21. In other words, the gap 38 as a noncontact part is set between a catch face of the tube-positioning part 31 and the tube 21 continuously in a circumferential direction of the tube 21. The gap formed has a size not to generate a capillary phenomenon. Accordingly a complicate work of connecting the tube 21 is eliminated. |
