Fastening tool
AssigneeMax Co., Ltd.
InventorsYusuke Osawa, Kazuya Takeuchi
Life of this patent
Estimating the term…
Abstract
A fastening tool includes a bit holding portion configured to hold a driver bit engageable with a screw and that is rotatable in a circumferential direction and movable in an axial direction of the driver bit, a motor configured to rotate the bit holding portion, a controller configured to control the motor, and a detector configured to detect a state of the motor. In a state where the screw engaged with the driver bit is fastened to a fastening target, the controller determines whether the driver bit and the screw are disengaged based on the state of the motor detected by the detector and stops the rotation of the motor in a case where the controller determines that the driver bit and the screw are disengaged.
Claims8
A fastening tool comprising:
- a bit holding portion configured to hold a driver bit engageable with a screw and that is rotatable in a circumferential direction and movable in an axial direction of the held driver bit;
- a motor configured to rotate the bit holding portion;
- a controller configured to control the motor;
- a detector configured to detect a state of the motor;
- and
- a position detector configured to detect a position of the bit holding portion, wherein:
- in a state where the screw engaged with the driver bit is fastened to a fastening target, the controller determines whether the driver bit and the screw are disengaged based on the state of the motor detected by the detector and stops the rotation of the motor in a case where the controller determines that the driver bit and the screw are disengaged, and
- the controller determines whether the driver bit and the screw are disengaged after the position of the bit holding portion is moved to a stop determination allowable position.
A fastening tool comprising:
- a bit holding portion configured to hold a driver bit engageable with a screw and that is rotatable in a circumferential direction and movable in an axial direction of the held driver bit;
- a motor configured to rotate the bit holding portion;
- a controller configured to control the motor;
- a detector configured to detect a state of the motor;
- a contact member movable in the axial direction of the driver bit;
- and
- a contact switch portion configured to switch ON and OFF according to a position of the contact member, wherein:
- in a state where the screw engaged with the driver bit is fastened to a fastening target, the controller determines whether the driver bit and the screw are disengaged based on the state of the motor detected by the detector and stops the rotation of the motor in a case where the controller determines that the driver bit and the screw are disengaged, and
- the controller is configured to determine whether the driver bit and the screw are disengaged in a case where the contact switch portion is in the ON state.
Dependencies are inferred from the claim text.