US 2014/0231113 A1 · HAND-HELD POWER TOOL AND METHOD FOR OPERATING THE HAND-HELD POWER TOOL

Abstract

A method is provided for controlling an electric hand-held power tool having a device housing and a coupling device on the device housing side for securing an auxiliary handle to the device housing. It is detected whether the auxiliary handle is secured to the device housing and/or whether the auxiliary handle is gripped by a user. In addition, the instantaneous operating state is ascertained and evaluated. A protective function is activated when the occurrence of a critical operating case is recognized during the evaluation of the instantaneous operating state. It is provided that the evaluation of the instantaneous operating state and/or the activation of the protective function is/are carried out as a function of whether the auxiliary handle is secured to the device housing and/or whether the auxiliary handle is gripped by the user.

Claims10

Dependent claims

A method for controlling an electric hand-held power tool having a device housing and a coupling device on a housing side for securing an auxiliary handle to the device housing, comprising:

detecting at least one of whether the auxiliary handle is secured to the device housing and whether the auxiliary handle is gripped by a user;
ascertaining and evaluating an instantaneous operating state;
and
activating a protective function when an occurrence of a critical operating case is recognized during the evaluation of the instantaneous operating state, wherein at least one of the evaluation of the instantaneous operating state and the activation of the protective function is carried out as a function of at least one of whether the auxiliary handle is secured to the device housing and whether the auxiliary handle is gripped by the user.

1 more element

An electric hand-held power tool, comprising:

a device housing;
a coupling device on the device housing side for securing an auxiliary handle to the device housing;
a detection device for detecting at least one of the auxiliary handle on the device housing and a gripping of the auxiliary handle, secured to the device housing, by a user;
an electric drive motor;
a control device for controlling the drive motor and having an evaluation device for evaluating an instantaneous operating state of the electric hand-held power tool;
and
an activation device for activating a protective function when the evaluation device recognizes an occurrence of a critical operating case, wherein:
the control device performs at least one of the evaluation of the instantaneous operating state and the activation of the protective function as a function of the detection of at least one of the auxiliary handle on the device housing and the gripping of the auxiliary handle by the user.

5 more elements

Dependencies are inferred from the claim text.

Hand-held power tool and method for operating the hand-held power tool

Life of this patent

Hand-held power tool and method for operating the hand-held power tool

Life of this patent

Abstract

Claims10