Power tool and controller
First Claim
1. A power tool comprising:
- a motor;
a drive unit driven by the motor;
a trigger switch operable by a user and switchable between an activation state, in which the motor is driven, and a deactivation state, in which the motor is stopped;
a forward-reverse switch operable by the user and used to switch a motor rotation direction between a forward rotation direction and a reverse rotation direction; and
a control unit that drives the motor based on an operation of the trigger switch, whereinthe control unit is adapted to allow a mode shifting switch of the power tool to be switched between a first mode and a second mode;
whereinin the first mode, the control unit switches the motor rotation direction to a rotation direction that is selected by the forward-reverse switch,in the second mode, when the trigger switch is switched from the activation state to the deactivation state, the control unit switches the motor rotation direction so that the motor is driven in a rotation direction opposite to the present rotation direction when the trigger switch is activated next, andin the second mode, when the trigger switch continues to be in the activation state, the control unit continuously drives the motor in the present rotation direction.
1 Assignment
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Accused Products
Abstract
A power tool includes a motor, a drive unit driven by the motor, and a trigger switch and a forward-reverse switch each operable by a user. The trigger switch is switchable between an activation state and a deactivation state. The forward-reverse switch switches a motor rotation between forward and reverse. The power tool also includes a control unit that drives the motor based on operation of the trigger switch and allows switching of an operation mode of the power tool between first and second modes. In the first mode, the motor rotation is switched to that selected by the forward-reverse switch. In the second mode, when the activation state is switched to the deactivation state, the motor rotation is switched so that the motor is driven in a direction opposite to the present rotation direction when the trigger switch is activated next.
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Citations
7 Claims
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1. A power tool comprising:
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a motor; a drive unit driven by the motor; a trigger switch operable by a user and switchable between an activation state, in which the motor is driven, and a deactivation state, in which the motor is stopped; a forward-reverse switch operable by the user and used to switch a motor rotation direction between a forward rotation direction and a reverse rotation direction; and a control unit that drives the motor based on an operation of the trigger switch, wherein the control unit is adapted to allow a mode shifting switch of the power tool to be switched between a first mode and a second mode;
whereinin the first mode, the control unit switches the motor rotation direction to a rotation direction that is selected by the forward-reverse switch, in the second mode, when the trigger switch is switched from the activation state to the deactivation state, the control unit switches the motor rotation direction so that the motor is driven in a rotation direction opposite to the present rotation direction when the trigger switch is activated next, and in the second mode, when the trigger switch continues to be in the activation state, the control unit continuously drives the motor in the present rotation direction. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A controller that controls a power tool, wherein the power tool includes a motor, a drive unit driven by the motor, a trigger switch operable by a user and switchable between an activation state, in which the motor is driven, and a deactivation state, in which the motor is stopped, and a forward-reverse switch operable by the user and used to switch a motor rotation direction between a forward rotation direction and a reverse rotation direction, the controller comprising:
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a control unit that drives the motor based on an operation of the trigger switch, wherein the control unit is adapted to allow a mode shifting switch of the power tool to be switched between a first mode and a second mode, wherein in the first mode, the control unit switches the motor rotation direction to a rotation direction that is selected by the forward-reverse switch, in the second mode, when the trigger switch is switched from the activation state to the deactivation state, the control unit switches the motor rotation direction so that the motor is driven in a rotation direction opposite to the present rotation direction when the trigger switch is activated next, and in the second mode, when the trigger switch continues to be in the activation state, the control unit continuously drives the motor in the present rotation direction.
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Specification