公开(公告)号：US20190061982A1

公开(公告)日：2019-02-28

申请号：US16072494

申请日：2016-12-07

Applicant: ISHIDA CO., LTD.

Inventor： Tatsuya IWASA ,  Atsushi TAKAHASHI ,  Yuji YOKOTA ,  Takeshi NOGUCHI ,  Tatsuya ARIMATSU ,  Hiroshi OKANO

IPC: B65B43/30

CPC classification number: B65B43/305 ,  B25J15/0616 ,  B31B50/804 ,  B65B43/30 ,  B65G47/91 ,  B65H3/0808

Abstract: Provided is a highly reliable box-opening device being capable of suppressing failures of a box-opening action regardless of a size of a cardboard box sheet. The box-opening device unfolds a sheet in which first and second side surfaces and third and fourth side surfaces overlap, and forms a square-tube-shaped cardboard box. The box-opening device may have a suction disk to grasp the first side surface, a main arm having suction disks to grasp the fourth side surface and changing a posture while grasping the fourth side surface, and a control part to control a movement of the main arm so that an initial action, in which a gap is formed between the first and second side surfaces and the third and fourth side surfaces, and a main action that follows the initial action, are executed as an action of unfolding the sheet.