| 摘要 |
<p>PURPOSE:To minaturize a mechanism and to reduce the number of components by integrally forming a switch mechanism on a part of a substrate where various mechanical parts are mounted and fixing the pressing stroke of a switch. CONSTITUTION:This mechanism is constituted so that the switch 25 is turned on by pressing the operation piece of the switch by the selective operation of plural operation levers 20-23 provided on the substrate, and the switch is turned off by releasing the pressing of the operation piece 25k. First, second parallel arms 25a, 25b whose respective one ends are provided freely and rockingly on one side wall of a hole provided on the substrate formed out of a resin material, an engaging piece 25d provided on respective other ends of these arms freely and rockingly successively and opposing to plural operation levers 20-23 on one end, and a pressing piece 25k opposing to the operation piece 31 of the switch 30 on the other end and pressing the operation piece 31 are formed. Further, the mechanism is provided with a third arm 25c turning on/off the switch by the pressing piece 25k accompanying that the engaging piece 25d is pressed by the operation levers and the first, the second arms 25a, 25b are inclined. Thus, the pressing force of the operation piece of the switch is fixed.</p> |
