| 摘要 |
PURPOSE:To make it possible to switch time specification and indicate result of the switching at the same time, by providing dial plates, on which number multiplying factor and time unit are indicated, on rotary switch operating shafts which switch an inside circuit of a timer. CONSTITUTION:Rotary switches 12 and 15 are designed capable of switching time specification of an inside circuit every turning 90 deg. by rotating the operating shafts 13 and 16, and top-end surface of the operating shafts are provided with engaging grooves 13a and 16a with which tip of a driver is engaged. Dial plates 14 and 17 are attached onto the operating shafts 13 and 16 in such a manner as to be rotated together as a continuous body, and number multiplying factor is indicated on surface of a dial plate 14 and time unit is indicated on surface of the other dial plate 17. The number multiplying factor and time unit of the dial plates 14 and 17 are facing indicating windows 5 and 6. |
