| 摘要 |
Provided herein is an applicator made of a resin, with a simple structure, and allowing for easy mounting and removal of a cartridge at a lower price than the conventional ones. A cartridge fitting portion 52 of a cylindrical syringe 5 made of a resin includes an end surface opening portion 52A, a continuous opening portion 52B continuous with the end surface opening portion 52A, opened in a radial direction, and extending in an extending direction, and a recess portion 52C configured to communicate with the end surface opening portion 52A, the continuous opening portion 52B, and an internal passage 55 in a cylindrical body 51. The recess portion 52C includes a flange fitting recess 52C 1 to be fitted with a flange portion 39 of a cartridge 3, and a cylindrical portion fitting recess 52C 2 configured to communicate with the flange fitting recess 52C 1 and to be fitted with a part of the cylindrical portion 33. A wall portion 52D surrounding the cylindrical portion fitting recess 52C 2 of the cartridge fitting portion 52 is configured to warp into snap engagement with the part of the cylindrical portion 33 when the part of the cylindrical portion 33 is inserted from the continuous opening portion 52B. |
