| 摘要 |
PURPOSE:To make it possible to easily insert a lid into a container body without making the gap between the container body and the lid large, by forming taper parts and flat parts in the contacting parts of the container body and the lid. CONSTITUTION:With a lid 2 being removed, a back-up ring 7 and a packing 6 are fitted in the mentioned order onto the lid 2, and as well a stopping ring 5 is screwed to the lid 2. The contacting parts 8 of a container body 1 and the lid 2 are formed with tapered parts 9 and flat parts 10. Then, the container body 1 and the lid 2 are gradually brought near together for inserting the lid 2 into the container body 1. Therefore, both are contacted together at their contacting parts 8 formed in the container body 1 and the lid 2. Since the lid 2 is inserted while their contacting parts 8 are contacted together, they are prevented from being contacted together in the vicinity of a high pressure sealing position where the pressure resistant mechanism is finally established. Accordingly, the gap between the container body and the lid may be made less. |
