Abstract: A method for manufacturing an airbag cover may include a molding step for forming a molded airbag-cover body that includes an integrated combination of a top panel and a container, and a tearing-line formation step for post-processing the molded airbag-cover body obtained in the molding step to form a tearing line having a depth less than a panel thickness of the top panel. An ultrasonic machining device may be used in the tearing-line formation step to form the tearing line.

Abstract: An airbag cover for covering a vehicle airbag includes a cover body having a backside, and a groove formed in the backside. The groove has a depth smaller than a thickness of the cover body and a groove formed portion is variable in a thickness direction. The groove is inclined relative to the thickness direction.

Abstract: A method for manufacturing an airbag cover may include a molding step for forming a molded airbag-cover body that includes an integrated combination of a top panel and a container, and a tearing-line formation step for post-processing the molded airbag-cover body obtained in the molding step to form a tearing line having a depth less than a panel thickness of the top panel. An ultrasonic machining device may be used in the tearing-line formation step to form the tearing line.

Abstract: A method for manufacturing an airbag cover may include a molding step for forming a molded airbag-cover body that includes an integrated combination of a top panel and a container, and a tearing-line formation step for post-processing the molded airbag-cover body obtained in the molding step to form a tearing line having a depth less than a panel thickness of the top panel. An ultrasonic machining device may be used in the tearing-line formation step to form the tearing line.

Abstract: A method for manufacturing an airbag cover may include a molding step for forming a molded airbag-cover body that includes an integrated combination of a top panel and a container, and a tearing-line formation step for post-processing the molded airbag-cover body obtained in the molding step to form a tearing line having a depth less than a panel thickness of the top panel. An ultrasonic machining device may be used in the tearing-line formation step to form the tearing line.

Abstract: An airbag cover for covering a vehicle airbag includes a cover body having a backside, and a groove formed in the backside. The groove has a depth smaller than a thickness of the cover body and a groove formed portion is variable in a thickness direction. The groove is inclined relative to the thickness direction.

Abstract: Method of reliably manufacturing an airbag cover for covering a vehicle airbag, an airbag cover is processed with an ultrasonic processing blade and a tear line having a depth in a range of the plate thickness of the airbag cover is formed. At this time, a member to be taught profiles along a teaching line which is formed in an airbag cover supporting surface of an airbag cover supporting member, such that profiling data is derived and obtained. And then, a profiling teaching step which teaches a control unit based on profiling data is provided.

Abstract: An airbag cover and method constructing a cover for covering a vehicle airbag. The method includes forming a linear groove with a predetermined depth within the thickness of the airbag cover. The groove is formed by ultrasonic waves.