| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging box which can be easily assembled and disassembled and repeatedly reused, and a joint member usable to packaging boxes of any size. SOLUTION: The spring joint comprises a central body formed by coiling a wire rod, and arms each of which is extended from each end of the central body, stretched further to form a sloped linear part, bent toward the center at the end of the sloped part, and extended outward again to form a circular hook at the front extremity of the arm. The packaging box is assembled using the above spring joints. COPYRIGHT: (C)2004,JPO
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