Method for Holding a Spindle of a Mobile Power Tool
AssigneeHilti Aktiengesellschaft
InventorJoachim WOERZ
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Abstract
A method for holding a spindle of a mobile power tool in order to allow an opening and/or a closing of a tool fitting by turning an operating part of the tool fitting relative to the spindle, where the spindle is rotationally coupled to an electric motor. The method includes detecting a rotation of the spindle and/or of the electric motor in a first direction while a setpoint angular velocity is zero and controlling the electric motor to generate a torque in a second direction which is opposite to the first direction.
Claims12
A method for holding a spindle of a mobile power tool in order to allow an opening and/or a closing of a tool fitting by turning an operating part of the tool fitting relative to the spindle, wherein the spindle is rotationally coupled to an electric motor, comprising the steps of:
- detecting a rotation of the spindle and/or of the electric motor in a first direction while a setpoint angular velocity is zero;
- and
- controlling the electric motor to generate a torque in a second direction which is opposite to the first direction.
Dependencies are inferred from the claim text.