Power tool hall effect mode selector switch
First Claim
1. A power tool, comprising:
- a mode selector switch having a knob that when moved from a first position to a second position affects an output signal of a linear Hall effect sensor to a microprocessor configured to change an operational mode of the power tool from a first operational mode to a second operational mode different from the first operational mode when the output signal changes;
the mode selector switch capable of causing a first magnet and a second magnet to move a distance of a throw;
the first magnet and the second magnet when moved the distance of the throw effect a change from the first operational mode to the second operational mode;
the first magnet having at least a first magnetic field providing a first magnetic source to the mode selector switch;
the second magnet having at least a second magnetic field providing a second magnetic source to the mode selector switch;
the linear Hall effect sensor affixed to a circuit board and configured to produce the output signal that changes when the strength of at least one of the first magnetic field and the second magnetic field experienced by the linear Hall effect sensor changes;
the linear Hall effect sensor having a facing surface and the magnet having a face, the facing surface configured at a sensing distance from the face of the first magnet.
1 Assignment
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Accused Products
Abstract
A mode selector switch for a power tool that can have a source of a magnetic field and use a magnetoresistive component to produce an output signal that changes when the strength of the magnetic field changes. The power tool can have a microprocessor that changes an operational mode of the power tool based on a change of the output signal from the magnetoresistive component. The magnetoresistive component can be a Hall effect sensor and the power tool can be a nailer. The power tool can have a switching means which changes an operational mode based upon a change in the strength of the magnetic field upon a magnetoresistive component. A method of controlling a power tool, having a step of changing an operational mode of a power tool based upon identifying a change in output from a magnetoresistor.
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Citations
24 Claims
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1. A power tool, comprising:
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a mode selector switch having a knob that when moved from a first position to a second position affects an output signal of a linear Hall effect sensor to a microprocessor configured to change an operational mode of the power tool from a first operational mode to a second operational mode different from the first operational mode when the output signal changes; the mode selector switch capable of causing a first magnet and a second magnet to move a distance of a throw; the first magnet and the second magnet when moved the distance of the throw effect a change from the first operational mode to the second operational mode; the first magnet having at least a first magnetic field providing a first magnetic source to the mode selector switch; the second magnet having at least a second magnetic field providing a second magnetic source to the mode selector switch; the linear Hall effect sensor affixed to a circuit board and configured to produce the output signal that changes when the strength of at least one of the first magnetic field and the second magnetic field experienced by the linear Hall effect sensor changes; the linear Hall effect sensor having a facing surface and the magnet having a face, the facing surface configured at a sensing distance from the face of the first magnet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A power tool, comprising:
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a switching means for switching the power tool from a first operational mode to a second operational mode different from the first operational mode; the switching means having a first source of at least a first magnetic field; the switching means having a second source of at least a second magnetic field; the switching means adapted to move at least the first source from a first position to a second position; a linear Hall effect sensor sensing the strength of at least one of the first magnetic field and the second magnetic field; the linear Hall effect sensor having a fixed position in relation to a circuit board; the linear Hall effect sensor having a sensing distance of 3 mm or greater between the linear Hall effect sensor and the first source; the linear Hall effect sensor adapted to produce an output signal which is an analog output signal and which changes when the strength of at least one of the first magnetic field and the second magnetic field changes; and a data processing means that processes the output signal and changes the first operational mode to the second operational mode when the output signal changes. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of controlling a power tool, comprising the steps of:
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providing a switch adapted to change an operational mode of the power tool when a magnetic member is moved from a first position to a second position; providing the magnetic member which has at least a first magnetic field;
the magnetic member having a face;providing a means to move the magnetic member from the first position to the second position; providing a linear Hall effect sensor which has a magnetoresistor at a fixed location in the power tool detecting the first magnetic field and producing a first output of the magnetoresistor to a microprocessor;
the linear Hall effect sensor having a facing surface;the facing surface configured at a sensing distance which is 3 mm or greater from the face of the magnetic member; exposing the magnetoresistor to a first magnetic flux of the first magnetic field; moving the magnetic member a distance of a throw from the first position to the second position and exposing the magnetoresistor to a second magnetic flux different from the first magnetic flux;
the exposing the magnetoresistor to a second magnetic flux producing a second output of the magnetoresistor to the microprocessor;computationally identifying the change from the first output of the magnetoresistor to the second output of the magnetoresistor by the microprocessor; and processing machine readable instructions by the microprocessor to change the operational mode of the power tool from a first operational mode to a second operational mode different from the first operational mode based upon identifying the change from the first output of the magnetoresistor to the second output of the magnetoresistor. - View Dependent Claims (22, 23)
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24. A power tool, comprising:
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a mode selector switch having a knob that when moved from a first position to a second position affects the output of a linear Hall effect sensor to a microprocessor configure to change an operational mode of the power tool from a first operational mode to a second operational mode different from the first operational mode when the output signal changes; a first magnet that is moved a distance of a throw from the first position to the second position to effect a change from the first operational mode to the second operational mode; the first magnet having at least a first magnetic field providing a magnetic source to the mode selector switch; the linear Hall effect sensor affixed to a circuit board and configured to produce an output signal that changes when the strength of the first magnetic field experienced by the linear Hall effect sensor changes; the linear Hall effect sensor having a facing surface and the magnet having a face, the facing surface configured at a sensing distance of 3 mm or greater from the face of the first magnet.
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Specification