| 摘要 |
PURPOSE:To reduce the size and weight of a light control switch with position indicating function by making a volume and a switch into different parts, and forming a detent for lug and the operation part of a switch on two ribs provided on the periphery of the volume fitting part of a lug. CONSTITUTION:Two ribs 30b, 30c are concentrically provided around a fitting part 30 fitted to the volume operating shaft of a lug 30 for volume, the height of the outside rib 30c is partly increased to form an operation part 30e, which pushes an operation button 31, when the lug 30 is completely rotated, to light a neon lamp. At this time, a protruding rib 30d as a detent part making contact with a detent 14h formed on the edge of a hole 14c passing the volume is formed on the inside rib 30b to prevent the excessive rotation of the lug 30. Thus, the strength of the lug can be increased by forming the two ribs 30b, 30c on the back surface of the lug 30, and a light control switch can be reduced in size and weight by making the volume and the switch into separate parts. |
