To use a grille in comfort by eliminating fear for touching a hot part of the handle.

In the handle 20 which is connected with a receiving tray 14, a partition 29 is formed in a lower space 28 which is formed on the lower surface of a gripping part 27. The partition 29 is a wall body which is formed facing downward while being close to a handle body 21, and the right and left ends of which are bent forward at a right angle and are connected with the handle body 21. By the partition 29, on the forward side of a machine screw receiving part 26 located on the rear side of the handle body 21, the lower space 28 is partitioned into the front and the rear.