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US 9,656,624 B2Granted
Airbag and a preparation method thereof
AssigneeKolon Industries, Inc.
InventorsHyung-Keun Kim, Hee-Jun Kim, Dong-Jin Kwak, Sang Mok Lee
Life of this patent
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Abstract
The present invention relates to an airbag including an inflating part having gas inflatability, a non-inflating part supporting the inflating part, a combined part constituting a boundary between the inflating part and the non-inflating part, and an ultrasonic fusion bonded part located between the combined part and the end part of an inflator from which a gas at a high pressure spurts when a car crashes, and a preparation method thereof.
Claims10
An airbag, including
- an inflating part having gas inflatability, a non-inflating part supporting the inflating part, a combined part constituting a boundary between the inflating part and the non-inflating part, and an ultrasonic fusion bonded part located between the combined part and an end part of an inflator from which a gas at a high pressure spurts when a car crashes,
- wherein a width of the ultrasonic fusion bonded part is 0.1 to 2 cm.
A method of preparing an airbag, including steps of:
- preparing a double-layered fabric including an inflating part having gas inflatability, a non-inflating part supporting the inflating part, and a combined part constituting a boundary between the inflating part and the non-inflating part;
- and
- forming an ultrasonic fusion bonded part at the double-layered fabric between the combined part and the end part of an inflator from which a gas at a high pressure spurts when a car crashes,
- wherein the step of forming the ultrasonic fusion bonded part is carried out by using ultrasonic waves at a frequency of 15 to 25 kHz.
1 more element
Dependencies are inferred from the claim text.