| 摘要 |
PURPOSE:To eliminate the occurrence of an unreceivable direction by providing a rotary mobile section equipped with a guide section on the rear side of a main body facing a housing section and changing the direction of an infrared ray emitting element in the vertical and lateral directions by means of a knob section slid on the guide section. CONSTITUTION:A rotary mobile section 7 with a groove-like guide section 6 is provided on the rear side of the device facing a housing section 5 and, in addition, the section 6 is formed to a circular arc-like shape. When a receiving unit and infrared ray emitting elements 11 are aligned to each other, a knob section 12 is set in a horizontal position in the direction shown in the arrow A toward the receiving unit. When the knob section 12 is manually lowered while the receiving unit is attached to the ceiling, a hook section 13 and sub-printed circuit board 10 are also lowered. As a result, the element 11 is turned to the upward direction and aligned to the receiving unit. |
