Shikoku Kakoki Co., Ltd.

Masamitsu Mihara

Michio Ueda

Seizo Kawamura

Toshio Kanematsu

Takayuki Hashimoto

A carton blank erector and feeder comprising a magazine having a delivery opening at one end and accommodating flat blanks as arranged closely side by side from the end toward the other end thereof, the delivery opening being so positioned as to be opposed to a phantom outward extension of a bottom forming mandrel as stopped at a feed station, transport means for withdrawing the blank from the delivery opening and transporting the blank to the outward extension, and means for unfolding the blank from the flat form to a tubular form of square cross section while the blank is being transported by the transport means. The unfolding means has at least two unfolding claws provided at edge portions of the opening so as to be engageable respectively with opposite ends of the blank to be withdrawn from the opening, and at least two unfolding ensuring claws arranged at an intermediate portion of the path of transport of the blank so as to be engageable with the respective blank ends after the blank ends are released from the unfolding claws.

Growing community of inventors

Tokushima, Japan

Masamitsu Mihara