公开(公告)号：US11850806B2

公开(公告)日：2023-12-26

申请号：US17205104

申请日：2021-03-18

Applicant: AISIN CORPORATION

Inventor： Yasuhito Kurematsu ,  Makoto Sakai ,  Ryosuke Mizuno ,  Satoshi Masuda ,  Tomokazu Seki ,  Masaaki Hasegawa ,  Tsuyoshi Yamamoto ,  Tomoko Kanbara

IPC: B29C65/00 ,  B60N2/90 ,  B29L31/58 ,  B29L31/44

CPC classification number: B29C66/436 ,  B29C66/8322 ,  B60N2/914 ,  B60N2/976 ,  B29L2031/443 ,  B29L2031/58

Abstract: A method for manufacturing an air bag includes forming a bag portion surrounded by a welded portion extending in an annular shape by pressing at least one welding mold against two sheet materials arranged to be stacked from a stacking direction of the sheet materials. The welding mold is pressed against the sheet materials to form the welded portion including a welding bead portion protruding to an inside of the bag portion between the sheet materials. A pressing surface of the welding mold against the sheet materials is provided with a slope portion facing in the stacking direction of the sheet materials and in a direction of the inside of the bag portion at a position further on an outside of the bag portion than a position at which the welding bead portion is formed.

公开(公告)号：US11712985B2

公开(公告)日：2023-08-01

申请号：US17655814

申请日：2022-03-22

Applicant: AISIN CORPORATION

Inventor： Takashi Ogiso ,  Tomoko Kanbara ,  Satoshi Masuda

IPC: B60N2/66 ,  B60N2/90 ,  A47C7/46

CPC classification number: B60N2/665 ,  A47C7/467 ,  B60N2/914 ,  B60N2/976

Abstract: An air bag includes a bag portion formed by bonding two sheet members together. The bag portion includes an expansion portion including an annular joining portion extending in an annular shape, and a passage portion including a pair of parallel linear joining portions and connected to the expansion portion. Air filled in the bag portion flows through an internal space of the expansion portion surrounded by the annular joining portion and a passage sandwiched between the linear joining portions defining the passage portion. At a connection portion between the expansion portion and the passage portion, the linear joining portions extend in parallel, or the linear joining portions extend so as to expand toward a deep side of the passage from an opening position of the passage with respect to the internal space of the expansion portion.