PURPOSE: To prevent damage of wind shield, by piling wind shield installing section and edge of the wind shield through the material having small coefficinet of friction.

CONSTITUTION: A plastic bush 11 which the end contacts at the front of the deck 3 through the glass plate 2 and metal washer 7 from the direction of front surface of glass plate, a bolt 9 moves through the bush 11 and shoulder section 4 and interior material 5, glass plate 2 and deck 3 are limitted. A gap 13 is formed between inside diameter of the through hole 12 of plastic bush 11 and the diameter of bolt 9 to move through it. Therefore, since the force due to the deformation of the deck 3 transmits scarcely to the glass plate 2, danger which the galss plate 2 is broken is minimized.