| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent breakage of a hinge caused by twisting force or the like. <P>SOLUTION: A cap 12 includes a lid 14 of the cap for covering the upper surface of a cap body 13, which is coupled via a pair of thin hinges 15 elastically deformable. A pair of engaging walls 19 slantly facing at a predetermined interval are extended slantly from the direction X of opening/closing the lid 14 of the cap toward the thin hinges 15 on the upper surface of the cap body 13. Engaged walls 20 slantly facing at a predetermined interval are formed toward the thin hinges 15 inside the cap lid 14 to engage with the engaging walls 19 when the cap lid 14 is closed. Thus, torque around the thin hinge 15 located outside the cap lid 14 caused when external force in the lateral direction or the twisting direction is applied to the cap lid 14 is decreased by resistance by the engagement of the wall 19 on the upper surface of the cap body 16 and the wall 20 inside the cap lid 14, thereby also weakening force applied to the hinge 15. <P>COPYRIGHT: (C)2007,JPO&INPIT |
