| 摘要 |
A cover for an air bag apparatus includes: a resin outer panel 101 and an inner panel 105 disposed on the back side of the outer panel and softer than the outer panel so that it is deformable, wherein the outer panel comprises an expected door portion 101a as an expansion portion opposing the air bag and a closed loop shaped fracture portion which sections between the expected door portion and a non-expansion portion 101b and is fractured at the time of the expansion of the air bag; wherein the inner panel comprises a fixing portion 105b to be fixed to the non-expansion portion, door reinforcement portions 105f, 105g to be fixed to the expected door portion and a hinge portion 105d which is deformable and transverses the fracture portion to join the fixing portion with the door reinforcement portion integrally; and wherein the hinge portion is expanded in a direction of leaving the outer panel and formed to be thinned gradually (T1 to T2) from the side of the fixing portion to the side of the door reinforcement portion. The cover may form part of a vehicle trim panel such as an instrument panel. |
