| 摘要 |
PROBLEM TO BE SOLVED: To provide a two-step fastening electric screwdriver.SOLUTION: A two-step-fastening electric screwdriver 1 comprises: a motor set 20 providing a power source; a clutch set 30 connected to a motor 21 and driven by the motor 21, the clutch set 30 functioning to transmit power and shift gears and outputting torque in two steps; a screwdriver headset 40 driven by the clutch set 30 and provided so that a screwdriver head 42 of any of various types is inserted into and connected to the screwdriver headset 40; a trigger set 50 controlling the motor 21 of the electric screwdriver 1 to start operating and also functioning to prevent button reset; and a control set 60 including therein a substrate 61 of a micro-controller (MCU) and supplying an electric power source of necessary electric power. |
