Abstract: The switch includes a case, first and second manipulation members, two switching mechanisms, cam projections two locking members, guide grooves, and an operating member. The guide grooves for guiding the locking members are arranged so that tip ends of the locking members can be put in contact with the operation member for forcibly returning the manipulation members from a pressed-in position to a released position and that the tip ends are prevented from facing the operation member when the tip ends are located in a normal paths of the guide grooves, thereby preventing deformation of locking members and damages of the cam projections due to an erroneous pressing operation.

Abstract: A heater control assembly has a transmission mechanism including a first bevel gear rotatable together with a rotary knob, a second bevel gear engaging with the first bevel gear, a first spur gear rotatable together with the second bevel gear, and a second spur gear engaging with the first spur gear. The lever has one end connected with the cable and the other end which is fixed on the second spur gear so that the lever may swing in accordance with rotation of the second spur gear to pull and push the cable.

Abstract: A switch device comprises a dual push-push type switch device wherein each switch includes a cam protrusion that engages a downwardly inclined end portion of a lock pin when the switch is in a release position so that in the event of the depression of both switches simultaneously the top end portion of each of the lock pins slides over the cam protrusion of a respective operating piece.