Various systems and methods are presented regarding implementing a detachable cover over an airbag located in a seat, wherein the airbag is deployed during impact testing to determine operation of the airbag when deployed/installed in a vehicle. The detachable cover can be attached/detached from the seat by a zipper(s), button(s), and any other suitable attachment means. The detachable cover further includes a connection means configured to connect respective portions/segments of the detachable cover, and further, the connection means is configured to fail/rupture during deployment of the airbag.

An attachment member allowing a connected state between the attachment member and a guide member to be more easily checked is provided. The attachment member for attaching a stay cloth, which guides a deployment direction of an airbag module, to a seat back frame has a holding portion which includes a holding space for housing an attachment portion of the stay cloth. The holding portion is inserted into an attachment hole to be fitted into the attachment hole that is formed in the seat back frame. A through-hole which allows the attachment portion of the stay cloth in the holding space to be exposed in a penetrating direction of the attachment hole is formed in the holding portion.

A vehicle seat has a seat back which includes a seat cover that forms an outer surface of the seat, and an airbag that is held on a seat inner side of the seat cover. The airbag is deployed toward a seat occupant side while a burst portion formed at a sewn portion of the seat cover is released. In the burst portion, a first sewing line extending in a seat up-down direction and a second sewing line extending in a direction intersecting the first sewing line intersect with each other. Assuming that the seat cover portion around the burst portion is divided into a plurality of sections by the first sewing line and the second sewing line, a webbing cloth is provided for each section to regulate stretch of the seat cover in a planar direction when the airbag is deployed.

A soft cover for packaging an assemblage of an inflator and a side airbag in a stored condition to form an airbag module for installation in a vehicle, The soft cover is formed as a sheet of material including a central portion configured to form a loop that encircles the inflator and side airbag. A first end portion of the sheet extends from the central portion and is configured to wrap over the inflator and side airbag, closing a first open end of the loop formed by the central portion. The first end portion includes an inflator connector opening configured to be fitted over a connector housing of the inflator, leaving the inflator connector housing exposed outside the airbag module.