Power tool having rotary input control
First Claim
1. A method for operating a power tool having an output member, comprising:
- monitoring, by a controller disposed in the power tool, rotational motion of the power tool about an axis of the output member, using a rotational motion sensor disposed in the power tool;
determining, by the controller, a user-desired rotational direction for the output member about the axis;
determining, by the controller, an actual rotational direction of the power tool about the axis, using the monitored rotational motion of the power tool; and
driving, by a motor disposed in the power tool, the output member to simulate ratcheting movement of the output member in the user-desired rotational direction.
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Accused Products
Abstract
A power tool includes a housing, an output member that rotates about a longitudinal axis, and a motor drivably connected to the output member. A rotational motion sensor is arranged in the housing and operable to detect a user input that includes a rotational motion of the housing in a desired rotational direction about the longitudinal axis of the output member. A controller is configured to receive a first input indicative of a user-desired rotational motion of the output member, and a second input, from the rotational motion sensor, indicative of an actual rotational motion of the power tool. The controller determines a user-desired rotational direction of the output member about the axis from the first input, determines an actual rotational direction of the housing about the axis from the second input, and causes the motor to drive the output member to simulate ratcheting movement in the user-desired rotational direction.
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Citations
20 Claims
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1. A method for operating a power tool having an output member, comprising:
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monitoring, by a controller disposed in the power tool, rotational motion of the power tool about an axis of the output member, using a rotational motion sensor disposed in the power tool; determining, by the controller, a user-desired rotational direction for the output member about the axis; determining, by the controller, an actual rotational direction of the power tool about the axis, using the monitored rotational motion of the power tool; and driving, by a motor disposed in the power tool, the output member to simulate ratcheting movement of the output member in the user-desired rotational direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A power tool comprising:
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a housing; an output member at least partially contained in the housing and configured to rotate about a longitudinal axis; a motor contained in the housing and drivably connected to the output member to impart rotary motion thereto; a rotational motion sensor arranged in the housing and operable to detect a user input, the user input comprising a rotational motion of the housing in a desired rotational direction about the longitudinal axis of the output member; and a controller configured to receive a first input indicative of a user-desired rotational motion of the output member, and a second input, from the rotational motion sensor, indicative of an actual rotational motion of the power tool, and wherein the controller operates to determine a user-desired rotational direction of the output member about the axis from the first input, to determine an actual rotational direction of the housing about the axis from the second input, and to cause the motor to drive the output member to simulate ratcheting movement in the user-desired rotational direction. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification