| 摘要 |
To provide an air bag module cover structure suited to use for a motorcycl e, by enhancing toughness and the like. Tear lines as brittle portions are provided not in the surface of a module cover liable to influences of extern al factors such as rain, dust, etc. but at upper portions of three side surface s other than the side surface facing to the vehicle front side, of four side surface s of a roughly rectangular parallelopiped-shaped air bag module. Three tear lines are provided; specifically, both side surfaces facing in the vehicle width direction are each provided with a first tear line at portion B shown in the figure, and a second tear line is provided in portion C shown in the figure other than portions D shown in the figure as slits for passing air bag suppo rt belts therethrough. Therefore, at the time of inflation and development of t he air bag, the module cover is developed in such a manner as to open a lid, wi th one side on the vehicle front side of a casing as an axis. Besides, at one side on the vehicle front side, stoppers are formed to make it difficult for the module cover to be opened beyond a predetermined angle. |
