| 摘要 |
<p>PURPOSE:To extend the life of a battery of a small sized device, by providing a battery for both a machine main body and the small sized device, operating them with the battery of each respectively at separation through the attachment and detachment detection mechanism of the small sized device and operating the both with the battery of the main body at the incorporation. CONSTITUTION:With a small sized device incorporated with a device main body 9, a switch operating piece 6 is depressed with a attachment and detachment detecting piece 16, interlocking switches S1-1, S1-2 are switched to the terminal (a) and connectors 5-1 and 5-2 are connected. Thus, a battery 20 of the small sized device 1 and a display 4 are disconnected from the main body to avoid wear of the battery. A circuit 21 of the device 1 is backed up with a battery 22 of the main body 9. Thus, in applying a power switch S4 of the main body 9, the main body and the device 1 are activated. In separating the both, since the switch operating piece 6 is not depressed with the piece 16, the switches S1-1, S1-2 are switched to the terminal (b) and the both are activated with the batteries 22 and 20 respectively.</p> |
