| 摘要 |
<p>PURPOSE: To prevent a videotape from easily being taken out by other persons except clerks, by fitting the right container and the left container to a case body so as to enable swinging motions and elastically deforming fixing pieces by a key inserted in a hole of the right container part to unfix the engagement with the fixing protrusion. CONSTITUTION: When a videotape is contained in a body 1, a fixing piece 7 of a fastening tool 17 is inserted in a hole 13 at the right containing part 3 and the inside of base board 16 is forced to contact the external side of the peripheral wall 5 of the right containing part 3 and the external side of the flat plate 12 and attached thereto to close the right and left containing parts 2, 3. In this case, the fixing piece 7 is constituted so that it gets over a fixing protrusion 6 and a hook-shaped front end catches the fixing protrusion 6. The fixing protrusion 6 is held between the fixing piece 7 and the base board 16 and connected to the front end of the fixing piece 7 and hence, the right and left containing parts 2, 3 are kept in a state locked from the inside. When unlocking the state, a key 8 is inserted from the insertion part 18 and the insertion hole 9 and it is slid so as to raise the fixing piece 7.</p> |
