Airbag fabric and airbag
AssigneeToray Industries, Inc.
InventorsNobuaki Tanaka, Satoshi Yamada
Life of this patent
Estimating the term…
Abstract
An airbag fabric is excellent in slippage amount and strength in a sewn portion. The airbag fabric is made of a synthetic fiber, the fabric having a constant (load of 98 N/30 mm) elongation of 1 to 5% and having a residual strain rate of 0.1 to 1.5%, the residual strain rate being obtained when the fabric is allowed to stand still for 10 minutes from the removal of the 98 N/30 mm load after the retention of the fabric for 10 minutes while the 98 N/30 mm load is applied to the fabric. The strength in the sewn portion is preferably 1200 N or more in each of the warp and the weft.
Claims15
An airbag fabric comprising a synthetic fiber, the fabric having a constant elongation of 1 to 5% and a residual strain rate of 0.1 to 1.5% in each of a warp and a weft of the fabric, and the constant elongation and the residual strain rate being calculated by measuring methods below, respectively:
- constant elongation (EP) (%)=(L2−L1)/L1×100, and
- residual strain rate (ES) (%)=(L3−L1)/L1×100
- wherein
- L1:
- a distance between marked lines on the fabric when an initial load of 1.96 N/30 mm is applied to the fabric;
- L2:
- a distance between the marked lines after the fabric has been retained for 10 minutes while a load of 98 N/30 mm has been applied to the fabric;
- and
- L3:
- a distance between the marked lines when the initial load of 1.96 N/30 mm is applied to the fabric after the fabric has been allowed to stand still for 10 minutes from the removal of the 98 N/30 mm load after the retention of the fabric for 10 minutes while the 98 N/30 mm load is applied to the fabric.
Dependencies are inferred from the claim text.