PROBLEM TO BE SOLVED: To provide a lid for a container, which can be easily opened/closed by reducing lid opening/closing torque without deteriorating sealability of the container.SOLUTION: A lid 40 for a container is screw-connected to a cylindrical port part 24 extended from the container 20. The lid 40 for the container includes an outer lid 41 which has a screw part 43 screw-connected to an outer peripheral surface of the cylindrical port part 24, and an inner lid 61 which is attached to the outer lid 41 in such a manner as to be rotatable and vertically unmovable out of a predetermined range and which has a seal material 71 for being crushed by an inner peripheral surface 29 of the cylindrical port part 24.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2017,JPO&INPIT【課題】容器の密閉性を損なうことなく蓋の開閉トルクを軽減させ、開閉を容易にすることができる容器用の蓋を提供することを課題とする。【解決手段】容器20から延びる筒状口部24に、ねじ結合される容器用の蓋40である。容器用の蓋40は、筒状口部24の外周面にねじ結合するねじ部43を有する外蓋41と、この外蓋41に回転可能に且つ所定範囲外で上下動不能に取付けられ筒状口部24の内周面29で潰されるシール材71を有する内蓋61とを備えている。【選択図】図5
