Abstract: An automobile airbag apparatus disposed within an instrument panel covered with an interior cover. A fracture-opening section is defined in the interior cover to be located in opposition to the opening portion of the airbag case. The fracture-opening section is defined by at least a fragile groove formed from the back surface of the interior cover to surround the fracture-opening section. A reinforcement plate member is attached to the back surface of the fracture-opening section through deformation of a portion of the fracture-opening section through application of heat thereto. The reinforcement plate member has a main-body portion attached to the back surface of the fracture-opening section and an attachment portion extending from the main-body portion via a hinge portion. A plurality of slits are formed at predetermined intervals in the longitudinal direction of the reinforcement plate member such that the slits extend in parallel in the transverse direction of the reinforcement plate member.

Abstract: An automobile airbag apparatus disposed within an instrument panel covered with an interior cover. A fracture-opening section is defined in the interior cover to be located in opposition to the opening portion of the airbag case. The fracture-opening section is defined by at least a fragile groove formed from the back surface of the interior cover to surround the fracture-opening section. A reinforcement plate member is attached to the back surface of the fracture-opening section through deformation of a portion of the fracture-opening section through application of heat thereto. The reinforcement plate member has a main-body portion attached to the back surface of the fracture-opening section and an attachment portion extending from the main-body portion via a hinge portion. A plurality of slits are formed at predetermined intervals in the longitudinal direction of the reinforcement plate member such that the slits extend in parallel in the transverse direction of the reinforcement plate member.

Abstract: An automobile door with an inner plate and an outer plate wherein the outer plate has a panel formed from a synthetic resin. The panel is attached to a rigid metallic plate, such as steel, through a plurality of fastening holes formed in the longitudinal direction of the synthetic panel. One of the fastening holes near the forward end of the panel has a diameter substantially that of the fastening means. The remaining fastening holes are formed so as to allow longitudinal expansion and contraction of the synthetic panel. A lip portion is formed near the lower edge of the synthetic panel to engage with the inner plate of the door.