PURPOSE: To simply mount and remove a hood with respect to a bed, by providing engagement hooks at a front and a rear portion of the hood cloth, and rubber cords with hooks at a side portion of the hood cloth.

CONSTITUTION: A hood cloth 4 is provided with engagement hooks 6 and 6' having rubber cords 7 at a front and a rear portion thereof, and with rubber cords 8 having hooks 9 at side edges thereof. In using the hood cloth, the front hook 6 is engaged with a front portion of a bed 5, and the rear hook 6' is engaged with a pin 10. Then, the rubber cords 8 are engaged through the hooks 9 to a side edge of the bed. Accordingly, the bed 5 is completely covered with the hood cloth 4, and as an upper surface of the hood cloth 4 is sloped, reinwater is prevented from gathering on the hood cloth 4.