| 摘要 |
PURPOSE:To secure locking of a container, by providing a hill-shaped engaging block designed to be horizontally rotatable by means of an elastic member, projecting both end portions of the block sidewardly from a base upon rotation, and forming a guide surface engaged with an engagement hole edge of the container at a top portion of the block. CONSTITUTION:A hill-shaped engaging block 9 is supported to a base 6 in such a manner as to be horizontally rotatable by means of an elastic member. Both end portions 4 of the engaging block 9 are projected sidewardly from the base 6 upon rotation. The engaging block 9 is formed at its top surface with a guide surface 5 in a torsional direction. When the guide surface 5 of the block 9 is engaged with an engagement hole edge 2 of a container, and the block 9 is rotated against the elastic member as being guide in the torsional direction by the guide surface 5, the block 9 is inserted into an engagement hole of the container, and is then returned to an initial rotative condition by means of the elastic member, thereby securing locking of the container. The container may be unlocked by rotating the block 9 with a lever 16.
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