Patent ID: 9056379
Filing Date: 2015-06-16
Classification: B23Q,B28D

Abstract:
1. A power tool dust collecting device, the dust collecting device comprising: a casing mountable to a power tool; a cylindrical suction head that is provided so as to protrude from the casing, allows a tip end tool of the power tool to penetrate while in contact with a workpiece surface, and is connected at a circumferential surface to the casing such that an axis is directed in a front-rear direction; a dust collecting path that is formed in the casing so that air is sucked in from the suction head and introduced into the casing; a filter that is provided on the dust collecting path and capable of capturing dust sucked in together with the air; a blocking ring that is provided on a front surface of the suction head and subject to elastic deformation upon contact with the workpiece surface for blockage between the suction head and the workpiece surface; and a ventilating portion that is formed in the blocking ring to ensure a flow of air into the suction head regardless of whether the elastic deformation has occurred.