| 摘要 |
<p>An electrical switch (62) has a substrate (64) with at least one pair of spaced switch contacts (82, 84) arranged to be shorted by an electrically conductive armature (78). The armature (78) defines a central axis with first and second portion on either side of the axis which portions terminate at first and second edges. The armature (78) is normally held spaced from the contacts (82, 84) by magnetic attraction to a coupler layer (70) disposed in spaced relation to the substrate (64). The armature (78) is movable by an actuating force to engagement with the substrate (64). The armature (78) separates from the coupler layer (70) by a double pivoting motion. An actuating force applied to the armature (78) remote from its central axis causes one edge of the armature (78) nearest the actuating force to break away from the coupler layer (70). The armature (78) then pivots about the opposite edge of the armature (78) until the one edge bottoms on the substrate (64). This is followed by the opposite edge of the armature (78) breaking away from the coupler layer (70) and pivoting about the one edge until the opposite edge bottoms on the substrate (64).</p> |
