ELECTRICALLY-DRIVEN POWER TOOL

摘要

An improved electrically-driven power tool (1) reduces vibration resulting from a striking member and improves ease of operation. A weight casing (30) is provided between a motor casing (20) and a gear casing (40) . The weight casing includes a first weight casing (30A) connected to the motor casing and a second weight casing (30B) formed cylindrically and connected to the gear casing. A counterweight mechanism (33) is provided in the first weight casing. The counterweight mechanism is equipped with a pair of connecting members (34) , a pair of weight support members (35) , a counterweight (36) , and a bolt (37) . A first intermediate shaft (31) is inserted through the counterweight. A center of gravity G of an impact tool is positioned in the weight casing.