Hollow-weave airbag

Abstract

A hollow-weave airbag is constituted of a bag portion (11) with a 1 / 1 bag structure, and a closed portion (12) that has two or more weave structures and adjoins the bag portion 11. In addition, the closed portion (12) is constituted of, in sequence from the bag portion side, a first weave structure 12A with a 2 / 2 structure, a second weave structure 12B with a 1 / 1 structure, and a third weave structure with a 3 / 3 structure. Furthermore, the 2 / 2 structure is constituted of 3 to 5 weft yarns, and the 1 / 1 structure is constituted of 2 to 5 weft yarns.

Description

technical field [0001] The present invention relates to pocket tissue airbags. More specifically, it relates to a bag-like tissue airbag that suppresses the opening of the boundary seam between the bag portion and the closed portion of the airbag even when it is deployed, is capable of ensuring sufficient airtightness, and is capable of maintaining airtightness for a certain period of time or longer. remain expanded. Background technique [0002] The bag-like tissue airbag is used for shock absorption and collision, and is deployed by air immediately entering the airbag bag part structure, and maintains the deployed state for a predetermined period of time. [0003] Such pocket-tissue airbags have had a variety of applications in recent years. For example, bag-like safety tissue airbags used in life jackets, lifeboats, survival mats, and home lifts are also installed in vehicles that deploy when a vehicle collision occurs, and they act as airbags to protect the head and ch...

AI Technical Summary

Problems solved by technology

[0007] In Japanese Patent Publication 2000-229550 and Japanese Patent Publication 2001-233153, although the airtightness of the bag-like tissue airbag process is superior to that of conventional bag-like tissue airbags, however, a separate coating process must be performed to form the aforementioned bag-like tissue A coating for airbags that would complicate manufacturing and potentially increase costs

Also, if the coating is too thick, the folding of the air bag may become difficult, on the other hand, although the latter has a better airtightness, making the tissue structure at the border denser to prevent gaps in the air bag part and closure Part boundaries flare, making the coating susceptible to non-uniformity and possibly making folding difficult

Moreover, although the organizational structure of the bag-like tissue airbag boundary of the curved structure is more suitable than the linear structure, in order to increase the degree of freedom of design, the gas pressure is properly dispersed instead of pressure concentrated. It is not mentioned in the aforementioned published patents that if a given organizational structure The boundary of is a curved structure, how to maintain airtightness

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