Patent ID: 8421480
Filing Date: 2013-04-16
Classification: H01H

Abstract:
1. A multidirectional switch member comprising: an operation plate in which a pressing operation is performed toward a back side of the operation plate from above in a plurality of directions including four standard directions that extend along two intersecting lines and including a median direction extending between adjacent ones of the four standard directions; a printed-circuit board that is located at the back side of the operation plate and that is configured to detect the pressing operation by receiving pressure from the operation plate in any of the plurality of directions; a plurality of conductive bodies that are provided on the back side of the operation plate along the plurality of directions without contacting each other, and that protrude toward the printed-circuit board; a group of standard direction contact electrodes that are formed on the printed-circuit board and that each have a first electrode and a first ground potential electrode next to each other and without contacting each other along each of the standard directions; and a group of median direction contact electrodes that are formed on the printed-circuit board and that each have two second electrodes and a second ground potential electrode, the two second electrodes and the second ground potential electrode being configured with a multi-tooth shape next to each other and without contacting each other along the median direction, wherein one of the two second electrodes of one of the group of median direction contact electrodes, one of the two second electrodes of another of the group of median direction contact electrodes, and the first electrode are located next to and spaced apart from each other and are electrically connected to each other by wiring, and each tooth of the two second electrodes of the one of the group of median direction contact electrodes and each tooth of the second ground potential electrode of the one of the group of median direction contact electrodes are provided opposite to each other so as to alternate with each other.