Patent ID: 7556285
Filing Date: 2009-07-07
Classification: B60R

Abstract:
1. An airbag cover for covering an airbag for a passenger seat of a vehicle, comprising: a casing for accommodating the airbag; a top portion for covering the airbag accommodated in the casing; a tear line formed in the top portion for tearing the airbag cover; an opening portion formed in the top portion and partitioned by the tear line; an intermediary portion provided on a backside of the top portion and interposed between the top portion and the airbag accommodated in the casing, said intermediary portion having a flap portion extending so as to face the opening portion for opening toward the opening portion and a hinge portion, the flap portion pivoting at the hinge portion; and a plurality of welding ribs vertically disposed between the intermediary portion and the top portion so that the intermediary portion is integrally vibration-welded to the top portion through the welding ribs, the welding ribs having a first welding rib disposed in at least one of a peripheral area of the flap portion and a peripheral area of the hinge portion, and a second welding rib other than the first welding rib; wherein the first welding rib has a vertical height so as to contact the top portion before the second welding rib does when the intermediary portion is welded to the top portion by vibration welding so that the first welding rib has a strength of a welded joint greater than that of the second welding rib.