| 摘要 |
PROBLEM TO BE SOLVED: To improve the positioning accuracy of a cap, to reduce the height of the cap, and to provide the finishing sense by forming a riser part having a prescribed angle of inclination on an upper starting end part of a screw on the outer circumference of a container mouth part, and forming a stopper part on an upper finishing end part of the screw on an inner circumference of a cap-fitting cylinder. SOLUTION: A screw 2 and a holding projected bar 3 are provided on the outer circumference of a container mouth part 1 of a container A, and a riser part 6 having the angle of inclination of 60 to 90 deg. is formed in a screw starting part of an upper starting end of the screw 2. An intermediate plug B is provided with a fitting cylinder 10 to be fitted to the container mouth part 1, and a fitting cylinder 12 to be fitted to an inner circumference of the container mouth part 1, and an outlet 16 is provided in the upper center of an upper wall. An inclined surface 26 to be erected from a terminating bottom surface of a screw groove 24a and joined with the riser part 6 of the screw 2 is formed as a stopper part 27 on an upper finishing end part of a screw 24 of a cap C. Positioning is made in the circumferential direction of the screw, and positioning can be finely made thereby. |
