Patent ID: 11890730
Assignee: MAKITA CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 17:
18. A driver drill comprising:
a motor housing that holds an electric motor, an axis of rotation of a rotor of the electric motor extending in a front-rear direction of the driver drill;
a grip housing having an upper end connected to a lower part of the motor housing; and
an enlarged-part housing connected to a lower end of the grip housing and being spaced from the motor housing in an up-down direction of the driver drill that is perpendicular to the front-rear direction;
wherein:
the driver drill is shiftable between a drilling mode and a screwdriving mode,
the driver drill includes a torque-threshold-setting interface circuit board configured to set a torque threshold of the driver drill in response to receipt of a torque input signal when the driver drill is in the screwdriving mode,
in the screwdriving mode, the driver drill is shiftable between a setting unlocked state in which a torque threshold setting of the driver drill is changeable and a setting locked state in which the torque threshold setting of the driver drill is not changeable by electronically switching the torque-threshold setting interface circuit board between a torque-threshold-setting unlocked state in which the torque threshold setting of the driver drill is changeable in response to receipt of the torque input signal and a torque-threshold-setting locked state in which the torque threshold setting of the driver drill is not changeable in response to the receipt of the torque input signal, and
in the drilling mode the torque threshold setting of the driver drill is fixed.