To facilitate the workability of the movable hopper in installation in and removal from the crusher.

A frame 22 for the movable hopper is fastened to the edge of a charging inlet 6 in the upper part of a crusher 5. The movable hopper 50 attached to the frame 22 swings in response to the stretching/shrinking motion of hydraulic cylinders 30R and 30L. Upper edges 31R and 31L of the cylinders 30R and 30L, respectively, are supported with hydraulic brackets 55R and 55L for hydraulic cylinders arranged on the back surface of the movable hopper 50, and lower edges 32R and 32L of the cylinders 30R and 30L, respectively, are supported with hydraulic brackets 24R and 24L for hydraulic cylinders arranged on the frame 22 for the movable hopper.