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US 2010/0071920 A1Published application
Power tool
OwnerJames Ching Sik LAU, Duncan Yiu Lung Wong +2inventors
InventorsJames Ching Sik LAU, Duncan Yiu Lung Wong, Chang Lin Jin, Aloys J. Liu
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Abstract
A power tool has a power head 11; a motor 10 configured to drive the power head; a handle 13 at which a switch 30 and a trigger 31 are installed; a force sensor 33 installed at the handle and electrically connected to the switch and configured to output voltage in response to force acted thereon; and a control unit configured to control the motor in response to the output voltage from the force sensor. A method for operating a power tool is also disclosed.
Claims11
A power tool comprising:
- a power head;
- a motor configured to drive the power head;
- a handle accommodating a switch and a trigger;
- a force sensor fitted to the handle and electrically connected to the switch, the force sensor being configured to output a signal in response to force acting thereon;
- and
- a control unit configured to control the motor in response to the signal from the force sensor.
3 more elements
Dependencies are inferred from the claim text.