| 摘要 |
PURPOSE:To enable the opening and closing of the pouring hole to be easily secured, by providing the container lid with a protrusion, which has lateral bracings along both sides of the hole, and by providing the hole lid with projections which engage with the lateral bracings. CONSTITUTION:A container lid 2 covers and closes a container jar 1 in which a battery element is installed. The container lid 2 is provided with a hole 3 for pouring an electrolyte, and a hole lid 4 is attached to the hole 3 for the purpose of opening and closing the hole 3. The container lid 2 is provided with a protrusion 6, which has lateral bracings 5 along both sides of the hole 3. The hole lid 4, which moves smoothly and serves for opening and closing the hole 3, has projections 7 which engage with the lateral bracings 5. |
