ENHANCED ELECTRICAL MOTOR DRIVEN NAIL GUN

摘要

A portable electric nailing gun (1) operated from a power supply (3). The motor (4) accelerates a flywheel (6) which at the appropriate energy state is coupled through a mechanism to an anvil (11) acting directly on the nai (12). The actuation is governed by a control circuit (9) and initiated from a trigger switch (10). The motor (4) accelerates a flywheel (6) that is then clutched to the output anvil (11) causing the nail (12) to be driven. The position of the output anvil (11) is sensed and once the nail (12) is driven, the motor is dynamically braked reducing the excess energy in the flywheel (6). This method uses an intermediate link in the drive train and a position sensitive nailing mechanism to reduce wear and increase robustness of the nailer. The electrical control circuit (9)and brake allow precise control and improve safety. The power supply (3) is preferably a rechargeable low impedance battery pack.