| 摘要 |
A blank foldable into an expansible carton, which blank provides a plurality of panels and a set of flaps, for the formation of a carton, having front and rear walls; two opposite side walls; and two opposite end walls. One of the side and end walls of the carton formed is openable. Each of the other side and end walls of the carton formed provides a pair of mutually-overlying pleats. The panels and flaps are adapted to be secured together in wall-forming positions. The carton formed is designed for triple expansion, by opening of the openable wall; and unfolding of each pair of mutually-overlying pleats.
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