To provide a crusher in which the bite of objects to be crushed and the adhesion of the objects are prevented to improve crushing efficiency.

An apparatus main body having a material charging part 5 and a material discharging part 7, a roller 11 which is arranged in the main body, rotates or rotates recipricatingly within a prescribed range of angle, and has crushing blades on the peripheral surface, and a swing body 33 which is arranged in the main body to face the roller from the side, forms a clearance narrowed downward between it and the roller, swings, and has crushing blades are provided, and a clearance lower end open part is positioned diagonally downward from the roller.