| 摘要 |
PURPOSE:To prevent multiple lamps from being concurrently lighted to flush a large inrush current by increasing the number of multiple lamps to be lighted one by one with a pull switch. CONSTITUTION:The rotary contact shoe 18 of a pull switch 11 is connected between switch contacts (a) and (e) in a two-lamp lighting fixture of the inverter lighting type. When the rotary contact shoe 18 is connected between switch contacts (b) and (f), inverter lighting devices 13 and 15 are operated, and the right and left lamps are lighted. The rotary contact shoe 18 is slid on a slide armature 17, thus the inverter lighting device 13 maintains the operation state, the left lamp is kept in the lighted state, the right lamp is newly lighted. When the rotary contact shoe 18 is connected between switch contacts (c) and (g), only the inverter lighting device 15 is operated, and only the right lamp is lighted. In this case, the right and left lamps are lighted, then both lamps are once turned off, and the right lamp is newly lighted. When the rotary contact shoe 18 is connected between switch contacts (d) and (h), the lamps are turned off. |
