| 摘要 |
PROBLEM TO BE SOLVED: To provide a cap which can always pour a nearly specified small quantity of liquid when it is set on a container body and which is constituted of an extremely simple structure and easily handled and manipulated. SOLUTION: This cap fitted to the opening neck of a container body is provided with an external cylinder 2 in which the pouring outlet 9 is bored at the center of the top wall and the rear face of the top wall in the lower end of the pouring outlet 9 is shaped to form a valve seat 10, an internal cylinder 3 with the bottom, double-cylindrically formed in the external cylinder 2, and a spherical valve body 4 vertically movable within the internal cylinder 3. A pierced hole 16 is opened at the bottom wall 13 of the internal cylinder and a connecting aperture 17 is bored at the upper part of the peripheral wall 14 of the internal cylinder respectively. A specified volume of the liquid content is discharged from the pouring outlet 9 through the outer periphery of the internal cylinder and the connecting aperture 17 before the spherical valve body 4 closes the pouring outlet 9 by the compression of the container body assembled with the cap. |
