POWER TOOL AND CUSHIONING MECHANISM

摘要

A power tool having a strike cylinder, a strike piston slidably received in the strike cylinder, a driver joined to the lower face of the strike piston, and a cushioning mechanism for cushioning an impact occurring when the strike piston is driven to drive a fastener by a driver. The cushioning mechanism has a receiving section formed in the lower part of the strike cylinder and also has a bumper received in the receiving section and receiving the lower face of the strike piston. The bumper is formed in a tubular shape, the wall thickness of the center section of the pumper is greater than those of the upper and lower sections of the bumper, and the wall thicknesses of the upper and lower sections are substantially the same.