To prevent the casting of the sunlight to the eye sides of an operator by rotatably installing a sun visor at the front end section of a canopy covering the upper section of a driver's seat in a working machine such as a backhoe.

A canopy 30 covering the upper section of a driver's seat and being made of a resin is mounted on a backhoe, to which a backhoe device and a dozer device are set up, through a support member made of a pipe. The canopy 30 is composed of a canopy body 31, in which left and right side sections and a rear are curved and formed downwards, and a sun visor 32 fitted at the front end section of the canopy body 31 in a rockable manner through a shaft 33. The sum visor 32 is held in a forward extending attitude by a projection 35, and the sun visor 32 and the periphery of the projection 35 of the canopy body 31 are deformed elastically by gripping a grip 34 and downwards pulling the grip 34 and the sun visor 32 can be rocked downwards. Accordingly, an operator changes the attitude of the sun visor 32 in response to the alteration of the sunlight, can shield the sunlight, and can compact the whole canopy 30.