| 摘要 |
<p>An electric power tool having means for alternatively disabling and enabling tool operation comprises a code signal receiver (7) and an electronic control means (11) supported on the tool, which control means (11) is arranged to be switched to an operable mode when a code signal (4) is received by the code signal receiver (7) and to be switched to an inoperable mode as the power supply voltage is disconnected or as a certain interval of operation has been completed, wherein the control means (11) remains in the inoperable mode until the code signal (4) is received by the code signal receiver (7).</p> |
