| 摘要 |
<p>A hand-held power tool device comprises at least one safety device 12a (12b, Figure 3), which intervenes in the event of uncontrolled jamming. Safety device 12a (12b, Figure 3) comprises sensor unit 14a (14b, Figure 3) that directly senses at least one orientation parameter 16a, 18a (16b, 18b, Figure 3), which may be the earth's magnetic field (20a, Figure 2). Safety device 12a (12b, Figure 3) may include computing unit 22a (22b, Figure 3) for comparing at least two orientation parameters 16a, 18a (16b, 18b, Figure 3) measured with a time shift or for comparing a change of orientation (24a, Figure 2) with a cut-off threshold value (26a, Figure 2). Sensor unit 14a (14b, Figure 3) may be spaced from components which influence a sensing of the earth's magnetic field (20a, Figure 2), and may be arranged in auxiliary handle 28a (28b, Figure 3). Safety device 12a (12b, Figure 3) may have transmission means 30a (30b, Figure 3) for wirelessly transmitting a sensor parameter (32a, Figure 2), and energy reception means 34a (34b, Figure 3) for wirelessly receiving operating energy.</p> |
