Power tools
First Claim
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1. An electrically powered hand drill/driver, comprising:
- a rotatable work element adapted to receive a bit;
a motor adapted to drive the rotation of the work element during powered operation of the drill/driver;
a body having a housing containing at least the motor and a handle adapted to be gripped by a user while operating the drill/driver;
a power source adapted to deliver power to the motor;
at least one user input, wherein the at least one user input includes an actuator adapted to be depressed by a user to select powered operation of the drill/driver; and
a controller electrically connected to the power source and the motor and configured to regulate rotation of the work element by controlling delivery of power to the motor from the power source, wherein the controller is adapted to cause rotation of the work element responsive to depression of the actuator and where the controller is further adapted, at least in a first operating mode, to interrupt the rotation of the work element responsive to detection of a torque that exceeds a predetermined torque threshold.
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Abstract
An electrically powered hand tool is disclosed. The tool includes a motor, a power source, a work element and a controller. Various alternative features, embodiments and operative configurations are disclosed. The electrically powered hand tool may be a drill/driver configured to interrupt the rotation of the work element responsive to detection of a torque that exceeds a predetermined torque threshold.
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Citations
20 Claims
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1. An electrically powered hand drill/driver, comprising:
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a rotatable work element adapted to receive a bit;
a motor adapted to drive the rotation of the work element during powered operation of the drill/driver;
a body having a housing containing at least the motor and a handle adapted to be gripped by a user while operating the drill/driver;
a power source adapted to deliver power to the motor;
at least one user input, wherein the at least one user input includes an actuator adapted to be depressed by a user to select powered operation of the drill/driver; and
a controller electrically connected to the power source and the motor and configured to regulate rotation of the work element by controlling delivery of power to the motor from the power source, wherein the controller is adapted to cause rotation of the work element responsive to depression of the actuator and where the controller is further adapted, at least in a first operating mode, to interrupt the rotation of the work element responsive to detection of a torque that exceeds a predetermined torque threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electrically powered hand drill/driver, comprising:
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a rotatable work element adapted to receive a bit;
a motor adapted to drive the rotation of the work element during powered operation of the drill/driver;
a body having a housing containing at least the motor and a handle adapted to be gripped by a user while operating the drill/driver;
a power source adapted to deliver power to the motor;
a torque sensor adapted to measure torque applied to or by the work element;
at least one user input;
wherein the at least one user input includes an actuator adapted to be depressed by a user to select powered operation of the drill/driver; and
a controller electrically connected to the power source, the torque sensor, and the motor and configured to regulate rotation of the work element by controlling delivery of power to the motor from the power source, wherein the controller is adapted to cause rotation of the work element responsive to depression of the actuator and where the controller is further adapted, at least in a first operating mode, to reduce the applied torque responsive to detection of an applied torque that exceeds a predetermined torque threshold. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification