Percussion tool
AssigneeMilwaukee Electric Tool Corporation
InventorsMatthew S. Zawisza, Andrew D. Van Hoorn, Ethan T. Zimany
Life of this patent
Estimating the term…
Abstract
A method for reducing vibrations in a percussion tool includes activating, using an electronic controller of the percussion tool, the motor of the percussion tool, determining, using the electronic controller, that the percussion tool is in a loaded condition, and operating, using the electronic controller, the motor in accordance with a predetermined profile in response to determining that the percussion tool is in the loaded condition. The method also includes determining, using the electronic controller, that the percussion tool is in a no-load condition and operating, using the electronic controller, the motor with reduced speed in response to determining that the percussion tool is in the no-load condition.
Claims20
A method for reducing vibrations in a percussion tool, the method comprising:
- activating, using an electronic controller of the percussion tool, the motor of the percussion tool;
- determining, using the electronic controller, that the percussion tool is in a loaded condition;
- operating, using the electronic controller, the motor in accordance with a predetermined profile in response to determining that the percussion tool is in the loaded condition;
- determining, using the electronic controller, that the percussion tool is in a no-load condition;
- and
- operating, using the electronic controller, the motor with reduced speed in response to determining that the percussion tool is in the no-load condition.
A method for reducing vibrations in a percussion tool, the method comprising:
- activating, using an electronic controller of the percussion tool, the motor of the percussion tool;
- determining, using the electronic controller, that the percussion tool is in a loaded condition;
- operating, using the electronic controller, the motor in accordance with a predetermined profile in response to determining that the percussion tool is in the loaded condition;
- determining, using the electronic controller, that the percussion tool is in a no-load condition;
- operating, using the electronic controller, the motor with reduced speed in response to determining that the percussion tool is in the no-load condition;
- while the percussion tool is in the loaded condition
- detecting motor speed with a rotational speed sensor;
- and
- determining whether the motor speed satisfies a loaded condition speed threshold,
- wherein determining that the percussion tool remains in the loaded condition includes determining that the motor speed does not satisfy the loaded condition speed threshold, and
- wherein determining that the percussion tool is in the no-load condition includes determining that the motor speed satisfies the loaded condition speed threshold.
A method for reducing vibrations in a percussion tool, the method comprising:
- activating, using an electronic controller of the percussion tool, the motor of the percussion tool;
- determining, using the electronic controller, that the percussion tool is in a loaded condition;
- operating, using the electronic controller, the motor in accordance with a predetermined profile in response to determining that the percussion tool is in the loaded condition;
- determining, using the electronic controller, that the percussion tool is in a no-load condition;
- and
- operating, using the electronic controller, the motor with reduced speed in response to determining that the percussion tool is in the no-load condition
- while the percussion tool is in the loaded condition
- detecting motor current with a current sensor;
- and
- determining whether the motor current satisfies a loaded condition current threshold,
- wherein determining that the percussion tool remains in the loaded condition includes determining that the motor current satisfies the loaded condition current threshold, and
- wherein determining that the percussion tool is in the no-load condition includes determining that the motor current does not satisfy the loaded condition current threshold.
Dependencies are inferred from the claim text.