| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a step operation mechanism of switch that can be made small. <P>SOLUTION: Such a type of an energization member to be mounted between a first spindle 62 and a second coupling shaft 66 (second free end F2) is adopted as an energization member 67 for holding a shape of a link mechanism 64 when a step operation mechanism 33 is not actuated (stands still). Therefore, a space for mounting the energization member 67 has to be secured only between the second coupling shaft 66 and the first spindle 62, so that intervals of a first coupling shaft 65 (first free end F1), the second coupling shaft 66 (second free end F2), and a second spindle 63, i.e., lengths of a second link member 64b and a third link member 64c can be made as short as possible. Compared to a conventional device in which it is required to attach a torsion coil spring to shafts as an energization member, the step operation mechanism 33 can be made small. <P>COPYRIGHT: (C)2013,JPO&INPIT |
