| 摘要 |
PURPOSE:To stabilize operating a dimming system by consolidating a return spring with handles, and thereby eliminating risk of the return spring rattling relative to the handles. CONSTITUTION:A body 30 accommodates a base board 32a for mouinting a Down switch. Up switch, and an On/Off switch SW1 consisting in a push button, and on the oversurface of a cover 40, handles 501-503 are arranged so that control pieces for these switches are capable of being pressed independently. A hook leg 51 is detained with a detent hole 52 provided in the cover 40, and therewith each handle 50 is pivoted swingably relative to the cover 40, and a return spring 53 is fixed at the other side of each handle 50. This eliminates risk of return springs rattling relative to the handles 50 to lead to stabilization in operating a dimming system. |
