US 12,240,403 B2
Airbag attachment structure
Yousuke Kobayashi, Saitama (JP)
Assigned to Marelli Corporation, Saitama (JP)
Appl. No. 18/281,069
Filed by Marelli Corporation, Saitama (JP)
PCT Filed Dec. 6, 2022, PCT No. PCT/JP2022/044966
§ 371(c)(1), (2) Date Sep. 8, 2023,
PCT Pub. No. WO2023/171060, PCT Pub. Date Sep. 14, 2023.
Claims priority of application No. 2022-036645 (JP), filed on Mar. 9, 2022.
Prior Publication US 2025/0026300 A1, Jan. 23, 2025
Int. Cl. B60R 21/2165 (2011.01); B60R 21/205 (2011.01); B60R 21/215 (2011.01)
CPC B60R 21/2165 (2013.01) [B60R 21/205 (2013.01); B60R 2021/21537 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An airbag attachment structure for attaching an airbag to an instrument panel, comprising:
a door portion whose at least one end portion is welded to a back surface of the instrument panel along a cleavage line of the instrument panel, and the door portion being opened when the airbag is deployed;
an attachment portion to which an airbag case for storing the airbag is attached, and which has an opening at which the door portion is opened and brought into an opened state when the airbag is deployed;
a hinge portion connected to the attachment portion and configured to turnably hold the door portion; and
a flap interposed between the airbag and the hinge portion and configured to turn together with the door portion when being biased by the airbag during deployment of the airbag, wherein
the door portion is provided with a through hole penetrating from an inner side to an outer side of the door portion at an inclination of an acute angle from a hinge portion side to a one end portion side of the door portion,
the flap has, at a tip portion thereof, a projection portion inserted into the through hole, and
in the flap, in a state where the projection portion is inserted into the through hole, a gap is formed between the back surface of the instrument panel and the projection portion, and a gap is formed between a position, which is the tip portion of the flap and at which the projection portion is not formed, and the inner side of the door portion.