| 摘要 |
<p>The tool can be a power drill or an angle grinder with the drive and the transmission unit accommodated in a housing also serving as a handle. Touching particular areas at the housing can activate various functions, but the drive can only be started by pressing two switches with a short period between the operations. The control unit (36) comprises a motor (42) in a load circuit (40) supplied with power by a power switch element (44) and several switch elements (21,23,25,27,29) in the shape of micro-switches or optical switches.</p> |
