US 12,172,278 B2 · Method for the open-loop and closed-loop control of a power tool

Abstract

Handle apparatus on a power tool, in particular a chipping hammer, having a drive, a control device, a transmission device, wherein the handle apparatus contains a lever element that is pivotable relative to a housing of the power tool. The lever element is movable reversibly relative to the housing of the power tool by exertion of a force in one direction, and a sensor device is contained for sensing at least one first or second position of the lever element relative to the housing of the power tool, wherein a first rotational speed value for the drive is settable depending on the first sensed position of the lever element relative to the housing of the power tool or at least one second rotational speed value for the drive is settable depending on the second sensed position of the lever element relative to the housing of the power tool.

Claims17

Dependent claims

A method for the open-loop and closed-loop control of a power tool, the power tool having a drive, a controller, a sensor, a transmission and a handle, wherein the handle contains a lever with a signal transmitter, the lever being pivotable relative to the sensor, the method comprising steps of:

sensing a first and second position of the signal transmitter by the sensor;
determining an acceleration of the signal transmitter from the first position to the second position by the controller, the determined acceleration reaching a predetermined threshold value;
and
setting the drive from a deactivation mode into an activation mode by the controller when the determined acceleration of the signal transmitter reaches the predetermined threshold value.

1 more element

Dependencies are inferred from the claim text.

Method for the open-loop and closed-loop control of a power tool

Life of this patent

Method for the open-loop and closed-loop control of a power tool

Life of this patent

Abstract

Claims17