Articulating drill with optical speed control and method of operation
First Claim
1. A power tool having an optical speed control switch comprising:
- a moveable member having a reflective surface and the moveable member traversing a distance between a stop position and a full speed position, a biasing member operatively coupled to the moveable member to bias the moveable member to the stop position, an optical signal generator for generating an optical signal, the optical signal generator being oriented so that the optical signal is directed toward the reflective surface of the moveable member, and a speed control signal generator for generating a speed control signal that corresponds to a reflection of the generated optical signal reflected by the reflective surface of the moveable member.
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Accused Products
Abstract
A power tool includes an optical speed control switch for controlling the variable speed of an electrical motor in the tool. The tool includes a moveable member having a reflective surface and the moveable member traversing a distance between a stop position and a full speed position, a biasing member operatively coupled to the moveable member to bias the moveable member toward the stop position, an optical signal generator for generating an optical signal, the optical signal generator being oriented so that the optical signal is directed toward the reflective surface of the moveable member, and a speed control signal generator for generating a speed control signal that corresponds to a reflection of the generated optical signal reflected by the reflective surface of the moveable member.
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Citations
20 Claims
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1. A power tool having an optical speed control switch comprising:
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a moveable member having a reflective surface and the moveable member traversing a distance between a stop position and a full speed position, a biasing member operatively coupled to the moveable member to bias the moveable member to the stop position, an optical signal generator for generating an optical signal, the optical signal generator being oriented so that the optical signal is directed toward the reflective surface of the moveable member, and a speed control signal generator for generating a speed control signal that corresponds to a reflection of the generated optical signal reflected by the reflective surface of the moveable member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling motor speed in a powered tool comprising:
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traversing a distance between a stop position and a full speed position with a moveable member having a reflective surface, biasing the moveable member toward the stop position, directing an optical signal toward the reflective surface of the moveable member, and generating a speed control signal that corresponds to a reflection of the generated optical signal reflected by the reflective surface of the moveable member. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification