Rengo Co., Ltd.

Noriyoshi Azuma

Yoichi Nishikawa

Takafumi Makiuchi

Takahiro Okuda

Tokimasa Kuroda

Haruhiko Yamada

A locking receiving portion is defined by a first inclined line extending toward a third panel side on a first panel from a branching point on a fold line between the first panel and a second panel, a second inclined line extending toward the third panel side on the second panel from the branching point, and a cut portion extending between a distal end of the first inclined line and a distal end of the second inclined line. The locking receiving portion extends in an inclined manner between the first panel and the second panel in an assembled state. A locking portion is formed on the third panel, and configured to be locked to a cut portion side of the locking receiving portion in an assembled state.

Growing community of inventors

Tosu, Japan

Noriyoshi Azuma