| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an opening/closing device for a lid body of a packing box, which is relatively inexpensive, is freely designed with the operational quantity of an operating handle for opening/closing the lid body, and reliably prevents the operating handle from being moved in the opening/closing direction by the force such as its own weight of the lid body. <P>SOLUTION: The opening/closing device for the lid body of the packing box has a locking mechanism 24 changing the locked state in which the lid body for opening/closing an upper opening part of the packing box 14 is moved in the opening/closing direction by operating the operating handle 13 attached to an operation inputting unit 12, and the movement of the lid body is locked, and the unlocked state in which the lid body is moved in the opening/closing direction. When the operating handle 13 is attached to the operation inputting unit 12, the unlocked state is provided, in which an engagement member 53 is disengaged from an engagement groove 56 to operate the operating handle 13. When the operating handle 13 is detached from the operation inputting unit 12, the locked state is provided, in which the engagement member 53 is engaged with the engagement groove 56, and the movement of the lid body in the opening/closing direction is locked. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
