Blind rivet nut-setting tool
AssigneeMilwaukee Electric Tool Corporation
InventorBlaine Vollmer
Life of this patent
Estimating the term…
Abstract
A method of operating a blind rivet nut-setting tool includes pressing a blind rivet nut on an output shaft against a workpiece to move the output shaft from a first position to a second position and actuate a limit switch, which automatically activates a first motor to rotate the output shaft and thread the blind rivet nut onto the shaft. A trigger is then depressed to activate a second motor, which rotates a cam member and displaces the output shaft to plastically deform and permanently set the blind rivet nut on the workpiece. A reverse trigger is subsequently depressed to activate the first motor in an opposite direction and unthread the blind rivet nut from the output shaft.
Claims13
A method of operating a blind rivet nut-setting tool, the method comprising:
- activating a first motor automatically in response to pressing a blind rivet nut coupled to an output shaft of the tool against a workpiece, thereby displacing the output shaft along a longitudinal axis from a first position, in which a limit switch is not engaged, to a second position, in which the limit switch is engaged, causing the first motor and the output shaft to rotate about the longitudinal axis relative to the blind rivet nut;
- depressing a trigger to activate a second motor, causing the second motor and a cam member to rotate about a rotational axis and displace the output shaft along the longitudinal axis to a third position where the blind rivet nut becomes plastically deformed and permanently set on the workpiece;
- and
- depressing a reverse trigger to activate the first motor and rotate the output shaft in an unthreading direction to unthread the blind rivet nut from the output shaft.
A method of operating a blind rivet nut-setting tool, the method comprising:
- engaging a blind rivet nut with an output shaft of the tool with a sufficient force, causing the output shaft to move the output shaft in a rearward direction along a longitudinal axis from a first position to a second position;
- activating a first motor to rotate the output shaft about the longitudinal axis in response to the output shaft reaching the second position, thereby coupling the blind rivet nut onto the output shaft and translating the output shaft toward the first position;
- deactivating the first motor in response to the output shaft returning to the first position, at which point the blind rivet nut is engaged with a nosepiece of the tool;
- and
- activating a second motor to translate the output shaft along the longitudinal axis toward a third position that is rearward of the first position, thereby crushing the blind rivet nut against the nosepiece.
Dependencies are inferred from the claim text.