公开(公告)号：US12103737B2

公开(公告)日：2024-10-01

申请号：US17908546

申请日：2021-03-25

Applicant: HOSOKAWA YOKO CO., LTD.

Inventor： Raizo Kuge ,  Kazuhiro Umenaka ,  Sho Obara

IPC: B65D30/20 ,  B31B70/26 ,  B31B70/60 ,  B65D30/10 ,  B65D33/25 ,  B31B150/00

CPC classification number: B65D31/10 ,  B31B70/26 ,  B31B70/60 ,  B65D31/16 ,  B65D33/25 ,  B31B2150/001

Abstract: A rectangular-bottomed packaging bag (1) is a rectangular-bottomed packaging bag formed by folding a sheet material member and includes a rectangular shaped bottom (2) a front (3) and a rear (4) rising from two facing sides of the bottom (2), and a pair of sides (5) connecting the front (3) and the rear (4). The pair of sides (5) each include a first region (31) positioned on the front (3) side, a second region (32) positioned on the rear (4) side, a side joining portion (33) joining the first region (31) and the second region (32), and an inclined joining portion (34) inclined to the bottom (2) side from the side joining portion (33) toward one of the front (3) and the rear (4) and joining the sheet material member of the first region (31) and the second region (32) overlapping each other in a direction of thickness.