SWITCH DEVICE

[OBJECT] TO PROVIDE A SWITCH DEVICE WHICH CAN SIMPLIFY THE CONFIGURATION OF A SUPPORTING MECHANISM FOR A MOVABLE CONTACT AND CAN BE MADE MORE COMPACT THAN A PRIOR ART SWITCH DEVICE.[CONSTITUTION] THE SWITCH DEVICE INCLUDES A FIXED TERMINAL 21 HAVING A FIXED CONTACT 21A ON ONE SIDE SURFACE THEREOF, A CONDUCTOR PLATE 23 HAVING A MOVABLE CONTACT 23A ON ONE SIDE SURFACE THEREOF AT ITS ONE END PORTION, A CENTER TERMINAL 22 FOR HORIZONTALLY PIVOTABLY SUPPORTING THE CONDUCTOR PLATE 23, A TORSION COIL SPRING 24 PROVIDED ON THE CONDUCTOR PLATE 23 TO ELASTICALLY MAINTAIN AN ON CONDITION WHERE THE MOVABLE CONTACT 23A IS IN CONTACT WITH THE FIXED CONTACT 21A OR AN OFF CONDITION WHERE THE MOVABLE CONTACT 23A IS SEPARATE FROM THE FIXED CONTACT 21A, A CASE 11 HAVING A REVERSING CAM SURFACE 11H FOR PIVOTABLY MOVING THE TORSION COIL SPRING 24 SO THAT AN ELASTIC FORCE FOR MAINTAINING THE CONDUCTOR PLATE 23 IN ITS ON OR OFF CONDITION IS APPLIED THROUGH THE TORSION COIL SPRING 24 TO THE CONDUCTOR PLATE 23, AND A SLIDE 13 SLIDABLY ENGAGED IN THE CASE 11 AND HAVING PROJECTING PORTIONS 13C1 AND 13C2 ADAPTED TO SELECTIVELY COME INTO ENGAGEMENT WITH THE CONDUCTOR PLATE 23.