To develop and provide a vibration-proof and sound-proof crusher having excellent vibration-proof and sound-proof properties, strong in metal fatigue breakage and excellent safety, working efficiency and economic efficiency.

In the crusher comprising a piston part for transmitting blow energy of a crusher such as a hydraulic breaker and a chisel part mounted with a chisel receiving blow energy and crushing a rock, concrete and the like, elastic bodies such as a soft sheet, a soft packing, a rubber are provided to two positions of a gap part between a piston and a top end of a hammer in the piston part and a gap part between a chisel rear end in the chisel part and an anvil abutting on the hammer.