POWER TOOL
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Accused Products
Abstract
This invention relates to a power tool one having a driven member 5 for releasably gripping a working element 4. The power tool is operable in a working mode in which the working element performs work, or an adjustment mode in which the driven member 5 grips or releases the working element 4. The power tool includes a powered selector means including a controller 6 which enables the operator to select the mode of operation of the power tool.
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Citations
48 Claims
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1-24. -24. (canceled)
- 25. A power tool including a first driven member for gripping a working element, the power tool being operable in either a working mode in which the first driven member is driven to enable a gripped working element to perform work, or an adjustment mode in which the first driven member grips or releases the working element, and a powered selector operable to cause the power tool to operate in one of said modes.
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41. A power tool for use with a working element, the power tool including:
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a power source; a first driven member for gripping the working element; a primary drive including a first motor and a gear assembly through which the first motor is connected to the first driven member, the gear assembly being adjustable to operate in a relatively high or relatively low gear; a shifter connected to the gear assembly and being operable to adjust the gear assembly between the relatively high or relatively low gear, the shifter having a second motor connected by an output shaft to a second driven member wherein the second driven member is connected to the gear assembly; a microcontroller connected to the second motor for controlling power supplied from the power source to the second motor; and a controller for providing user inputs to the microcontroller, including a relatively high gear switch and a relatively low gear switch through which the user selects the gear assembly to operate in the relatively high or relatively low gear via operation of the shifter.
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42. A power tool for use with a working element including:
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a primary drive; a first driven member driven by the primary drive; a microcontroller controlling the level of current supplied to the primary drive means to control the level of torque supplied to the first driven member; the power tool being operable in either a working mode in which the first driven member is driven to enable a gripped working element to perform work, or an adjustment mode in which the first driven member grips or releases the working element; and a powered selector operable to switch the power tool to operate in either working or adjustment mode.
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47. A microprocessor for use with a power tool for use with a working element, the power tool including:
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a power source; a first driven member for gripping the working element; a primary drive including a first motor and a gear assembly through which the motor is connected to the first driven member, the gear assembly being adjustable to operate in relatively high or relatively low gear; a shifter connected to the gear assembly and being operable to adjust the gear assembly between the relatively high or relatively low gear, the shifter having a second motor connected by an output shaft to a second driven member wherein the second driven member is connected to the gear assembly; and a controller including user input devices, the user input devices including a relatively high gear switch and a relatively low gear switch through which the user selects the gear assembly to operate in the relatively high or relatively low gear via operation of the shifter, the microprocessor including a processing unit and associated memory device for storing control logic to cause the microprocessor to;
receive user inputs from the user input devices; and
control power supplied from a power source to the second motor according to the received user inputs.
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48. A microprocessor for use with a power tool for use with a working element, the power tool including:
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a primary drive; a first driven member for driven by the primary drive, the power tool being operable in either a working mode in which the first driven member is driven to enable a gripped working element to perform work or an adjustment mode in which the first driven member grips or releases the working element; and a powered selector operable to switch the power tool to operate in either working or adjustment mode, the microprocessor including a processing unit and associated memory device for storing control logic to cause the microprocessor to; receive a first user input from a controller representative of user selection of adjustment mode or working mode; and control the powered selector to cause the power tool to operate in the selected mode.
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Specification