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US 5,105,130 AGranted
Keyboard controlled multi-function power tool with visual display
AssigneeBlack & Decker Inc.
InventorsGordon Barker, David M. Shaw
Life of this patent
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AssigneeBlack & Decker Inc.
InventorsGordon Barker, David M. Shaw
Estimating the term…
A multi-function hand-held power tool includes an electric motor for driving a tool holder and control means for energizing the motor in accordance with a selected combination of operating conditions under which the tool is to be used. Located on the housing of the tool is a keyboard for inputting to the control means information to define the selected combinations of conditions. The keyboard has a first single key for selecting a tool function, for example drilling, from a defined range of tool functions, a second single key from selecting a required workpiece material for example wood, from a defined range of workpiece materials, and two further keys for selecting, from a defined range, another parameter, for example drill size, appropriate to the selected tool function. A visual display also located on the tool housing is energizable to show symbols indicative of the selected combination of operating conditions.
A multi-function power tool comprising an electric motor, a tool holder drivable by the motor, control means for regulating the energization of the motor in accordance with a selected combination of operating conditions under which the tool is to be used, a keyboard located on the housing of the tool for inputting information to the control means to define the selected combination of operating conditions, the keyboard comprising a first single key operable by a user to input a selected tool function from a range of tool functions defined by the control means, a second single key operable by the user to input a selected workpiece material from a range of workpiece materials defined by the control means, at least one further key operable by the user to input, from a range defined by the control means in dependence upon the selections resulting from operation of the first and second keys, a parameter appropriate to the selected tool function and material, and a visual display also located on the housing of the tool and energisable to display symbols indicative of at least the selected function and, where applicable, a symbol indicative of the parameter.
A multi-function hand-held power tool comprising an electric motor, a tool holder drivable by the motor, control means for regulating the energization of the motor in accordance with a selected combination of operating conditions under which the tool is to be used, a keyboard for inputting information to the control means to define the selected combination of operating conditions, the keyboard comprising a first single key for selecting a required tool function from a range of tool functions defined by the control means and including drilling and screwdriving, a second single kay operable to select a required workpiece material from a range of materials defined by the control means and including wood and masonry, at least one further key for selecting, in the event that drilling is selected, a drill size from a range of drill sizes defined by the control means, or in the event that screwdriving is selected, for selecting a torque level from a range of torque levels defined by the control means, and a visual display energisable to display symbols indicative of the selected function, selected material, the drill size, and torque level.
A multi-function power tool comprising an electric motor, a tool holder drivable by the motor, control means for determining the rotational speed of the motor in accordance with a user selected combination of operating conditions under which the tool is to be used, motor speed sensing means for sensing actual motor speed under conditions of use, said speed sensing means inputting to the control means which uses the input to maintain the motor speed at the determined speed, a keyboard located on the housing of the tool for inputting information to the control means to define the selected combination of operating conditions, the keyboard comprising a first single key operable to select a required tool function from a range of tool functions defined by the control means, a second single key operable to select a required workpiece material from a range of workpiece materials defined by the control means, at least one further key operable to select, from a range defined by the control means in dependence upon the selections resulting from operation of the first and second keys, a parameter appropriate to the selected tool function and material, and a visual display also located on the housing of the tool and energisable to display symbols indicative of at least the selected function and, where applicable, a symbol indicative of the parameter.
A multi-function power tool comprising an electric motor, a tool holder drivable by motor control means for regulating energization of the motor in accordance with a user selected combination of operating conditions under which the tool is to be used, motor speed sensing means for sensing actual motor speed under conditions of use, said motor speed sensing means inputting to the control means which uses the input to maintain the motor speed at a determined value, a keyboard for inputting information to the control means to define the selected combination of operating conditions, the keyboard comprising a first single key operable to input a selected tool function from a range of tool functions defined by the control means and including drilling and screwdriving, a second single key operable to input a selected workpiece material from a range of materials defined by the control means and including wood and masonry, at least one further key to input, in the event that drilling is selected, a drill size from a range of drill sizes defined by the control means, or in the event that screwdriving is selected, to input a torque level from a range of torque levels defined by the control means, means for sensing torque applied to the tool holder, said torque sensing means inputting to the control means which uses the input to de-energise the motor when the sensed torque level reaches the value of the selected torque level, and a visual display energisable to display symbols indicative of the selected function, selected material, the drill size, and torque level.
A multi-function, hand-held power drill, comprising:
Dependencies are inferred from the claim text.