| 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 inner end cylinder at a lower end part of an outer cylindrical wall of the upper lid is slightly deformed to form an air flow passage from the inside to the outside of the hinge cap, and air can be exhausted outside from the air flow passage. 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 the inner cylindrical cylinder of the outer cylindrical wall 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 |
