公开(公告)号：US20230415283A1

公开(公告)日：2023-12-28

申请号：US18276081

申请日：2021-02-12

Applicant: TPR CO., LTD.

Inventor： Keisuke Ito ,  Seiji Miyazaki

IPC: B23P19/08 ,  B25B27/12

CPC classification number: B23P19/088 ,  B25B27/12

Abstract: A retaining unit that retains a stack body in which piston rings are stacked in an axial direction, a cutting-out unit that delivers a piston ring at the tip end of the stack body from the stack body, and a detecting unit that detects a boundary between the piston rings that are adjacent to each other in the stack body are included, and the cutting-out unit includes a moving unit that moves a pushing-out unit and a restricting unit, and after inserting the pushing-out unit and the restricting unit into a dividing portion that is a boundary between the piston ring at the tip end and a piston ring that is adjacent to the piston ring at the tip end in the stack body, in a state in which movement of the piston ring that is adjacent to the piston ring at the tip end in a delivering direction in which the piston ring at the tip end is delivered is restricted by the restricting unit, the moving unit moves the pushing-out unit in the delivering direction, so that the piston ring at the tip end is separated from the stack body, and the piston ring at the tip end is delivered along the retaining unit.