| 摘要 |
PURPOSE: A lid of a container is provided to easily open the container without an additional strength by a screw thread in which a rotational direction of a screw is in a shape of a left screw. CONSTITUTION: A lid of a container can be applied to a container with an opening method of twisting the lid with a hand to cut out a cutting line(11) by shifting the rotational direction of a screw thread to open the lid into a counter clockwise. The screw thread for opening and closing the lid of the container is in a shape of the left screw to open the lid easily through a form of the left screw usually applied for a rotational apparatus to prevent disconnection by a same rotational direction.
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