公开(公告)号：US11731838B2

公开(公告)日：2023-08-22

申请号：US17704243

申请日：2022-03-25

申请人： NORITAKE CO., LIMITED

发明人： Yuta Kobayashi ,  Kenichi Tanaka

IPC分类号： B65G23/08 ,  B65G39/10

CPC分类号： B65G23/08 ,  B65G39/10

摘要： A roller conveyor device including a three-line conveyor for conveying objects that form at least three lines extending in a conveying direction. The three-line conveyor includes first conveyor rollers for conveying ones of the objects that form at least one central line of the at least three lines, second conveyor rollers for conveying ones of the objects that form at least one non-central line of the at least three lines, and third conveyor rollers for conveying ones of the objects that form another at least one non-central line of the at least three lines. A rotary shaft of each of the first, second and third conveyor rollers includes a shaft end portion having a projection portion that projects out from a conveying path in a widthwise direction of the conveying path, and the projection portion is to be driven so as to convey the objects in the conveying direction.