| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hinge cap which suppresses pressure rise of air in a cap caused by the heating, prevents an upper lid of the hinge cap from being opened by the pressure rise, and also prevents hot water from intruding into the cap in a hot water shower. <P>SOLUTION: The hinge cap is attached to a mouth cylindrical part of a container and consists of a cap body and the upper lid. When the hinge cap is plugged, the upper lid is lowered with respect to the cap body by pressing the cap from the upper part, an engagement deformation cylinder of the upper lid is slightly deformed outwardly to form an air flow passage from the inside to the outside of the hinge cap, and air is exhausted to the outside of the container. When the plugging of the hinge cap is completed, the upper lid is elevated with respect to the cap body by the restoring force of engagement deformation cylinder of the upper lid. The flow passage of the air from the inside to the outside of the hinge cap is closed so that the pressure inside the hinge cap is slightly negative. <P>COPYRIGHT: (C)2007,JPO&INPIT |
