METHOD FOR CHECKING COMPLETION OF SCREW DRIVING OF ELECTRIC DRIVER AND DEVICE FOR CHECKING COMPLETION OF SCREW DRIVING OF ELECTRIC DRIVER

摘要

PROBLEM TO BE SOLVED: To provide a method for checking completion of screw driving of an electric driver and a device for checking completion of screw driving of the electric driver which can check completion of screw driving without remodeling the electric driver currently sold in the market.;SOLUTION: When driving a screw with the electric driver, a change in an electric current value at start and lock of alternating current flowing through the electric driver is detected and a screw driving completion signal is taken out so as to check completion of screw driving.;COPYRIGHT: (C)2003,JPO