Hinged lid structure for vehicles

In the invention, a pair of arms 337, 338 are extended from the lid for the oil filler port 330, and these arms 337, 338 are rotatably mounted on the vehicle body cover 20 via the hinges 333, 334. The hinge 334 for supporting one of the arms 338 is provided with a torsion spring 353 for urging the lid 330 in the opening direction, and the hinge 334 for supporting the other arm 337 is provided with a rotary damper 345 for damping a speed of rotation of the lid 300. Since the hinged lid for vehicles rotates smoothly in natural motion, which gives an upscale image, a hinged lid for vehicles providing, for example, a feeling of operation suitable for the large scooter may be realized.