Patent ID: 8876932
Filing Date: 2014-11-04
Classification: B23Q,Y02P,Y10T

Abstract:
1. A power tool dust collecting device comprising: a housing mountable on the power tool; a suction opening protrudingly provided in the housing; a motor housed in the housing; a fan chamber which is formed in the housing and which houses a fan that rotates in accordance with driving of the motor; a dust collecting chamber which is formed in the housing on an upstream side of the fan chamber and in which is mounted a filter through which passes air that is sucked up from the suction opening due to rotation of the fan and which collects dust in the air; and an air pumping unit which is provided inside the housing, which pumps air from a downstream side toward an upstream side of the filter, and which includes a shutter member operable to close a discharge opening of the fan chamber.