A cover for an air bag device that enables an emblem to be secured to the cover
in an extremely simple manner. The cover (module cover) has a recess for receiving
the emblem. An extension of the emblem is extended through a hole in the cover.
A distal end of the extension is bent along a rear side of the cover. A rib is
pressed and welded by a thermal or ultrasonic welding element to form a welding
body. The welding body covers the distal end of the extension.