Patent ID: 8188398

Claim:
A press switch, essentially comprising: a base defining a receiving space therein and having two corresponding sides each externally provided with two engaging blocks; a light-emitting device disposed in the receiving space of the base and provided with at least two light-emitting diodes (LEDs); a housing having two corresponding sides each extended with a T-shaped fixing portion, wherein the housing is engaged with the base via the fixing portions; a movable seat inserted in the base and having four outer surfaces each provided with at least two ribs and at least two grooves; and a pressing element covering the movable seat; wherein a reduced area of contact between the base and the movable seat is achieved by flat surfaces of the base and the ribs of the movable seat, and a reduced area of contact between the movable seat and the housing is achieved by the ribs of the movable seat and flat surfaces of the housing, thus allowing the pressing element to be pressed stably and smoothly; and wherein the T-shaped fixing portions of the housing allow the housing to be stably connected to the base and prevent the housing from getting loose.