| 摘要 |
PROBLEM TO BE SOLVED: To enable both folding box edges to be connected rapidly and easily without using any adhesive agent or stapling needles. SOLUTION: This connecting structure is made such that the half of an inner plate thickness at one end and the half of an outer plate thickness at the other end of folding box edge material are cut off to form connecting surfaces 2a, 2b, and anglesθformed among extremity end surfaces 3a, 3b subsequent to the extremity ends and base ends of the connecting surfaces, base end surfaces 4a, 4b and the connecting surfaces 2a, 2b are set to the same angle in a range of 45 deg. to 75 deg.. Wedge grooves 5a, 5b passing at the central part of the connecting surfaces 2a, 2b of lateral orientation in a plate width direction are formed at positions where groove widths are slightly displaced in a lateral direction, and a non-metallic wedge 5 having a lower end width slightly narrowed is struck into the abutted segments of the wedge grooves to connected them to each other.
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