| 摘要 |
PROBLEM TO BE SOLVED: To automatically connect and separate both upper and lower storage boxes simply by operating handles which are provided in a top plate member when the storage boxes having the same structure are vertically stacked. SOLUTION: A connection structure of the storage box is provided with a pair of handles which are housed in housing parts for a handle in the top plate member of the portable storage box, a pair of engaging pawls which are arranged on a bottom plate side of the storage box and engaged with lower positioned means to be engaged of the storage box by means of a spring force of an urging spring when the handles are laid in a horizontal state, and a pair of draft means which connect the engaging pawls with the handles. In case the both storage boxes having the same form are stacked in a vertical direction, when the handles in the upper positioned storage box are raised in an elected state, the engaging pawls are followed by a motion of the handles and rotated in a direction of engagement-releasing direction against the spring force of the urging spring. |
