Multiple switch assembly

摘要

An electrical switch assembly includes a lever (18) lying on a vertical axis (102) and pivotable about horizontal axes (NS and EW). The lever has arms (20) extending in perpendicular horizontal directions, the arms serving to close corresponding switches (100) when the lever is pivoted to depress a corresponding one of the arms. Each arm carries a cam follower (25) that is biased against a cam surface (44) and each cam follower can largely vertically slide or roll along a cam surface. A convex cam surface region (134) results in a sudden decrease in resistance to lever pivoting as the arm closes a switch, to provide tactile feedback similar to that of a snap dome. The lever has a spherical bearing (19) that is trapped between a spherical surface (27) on the housing base (12) and a spherical surface (26) on a housing cover (13), with the arms extending through gap areas. The housing has a square cavity shape and the arms extend toward the corners.