| 摘要 |
PROBLEM TO BE SOLVED: To provide a cap with a stopper which effectively prevents a phenomenon that a tightening angle increases and it becomes difficult to conduct attachment/detachment operation even if the attachment/detachment operation of a measuring cap is repetitively conducted.SOLUTION: A cap 10 with a stopper comprises: a body cap 12 attached to a mouth neck part 11a of a container body 11; and a measuring cap 13 which is threadedly engaged with the body cap 12 to be detachably attached thereto. A stopper mechanism 15 comprises: an end point protruding part 23 which is provided protruding inward from a male screw wall part 17 of the body cap 12 or an inner peripheral surface of an inner cylindrical wall 18; and a stopper protruding part 24 which is provided protruding outward from an outer peripheral surface of a liquid return cylindrical part 20 of the measuring cap 13. When a female screw protrusion 22a of an attachment skirt part 22 is threadedly engaged with a male screw protrusion 17a of the male screw wall part 17 at a predetermined tightening angle, a stopper contact surface 24a of the stopper protruding part 24 contacts with an end point contact surface 23a of the end point protruding part 23. |
