PUSH LOCK SWITCH FOR CAR ROOM LAMP, CAPABLE OF SMOOTHLY MOVING CAM STICK IN PRESET CAM MOVEMENT DIRECTION BY IMPROVING CONFIGURATION OF PLATE SPRING

摘要

PURPOSE: A push lock switch is provided to permit a cam stick to smoothly move in a preset cam movement direction by improving the configuration of a plate spring. CONSTITUTION: A push lock switch comprises a plunger(3), a housing(5), and a cover(7). The plunger has a knob(2) coupled to a front portion thereof, and an operating ground portion(4) coupled to a top portion thereof. The housing accommodates the plunger together with an elastic spring(8). The cover is coupled onto the housing, and has a fixing ground portion(6) including a common terminal, an off terminal, and an on terminal. The plunger compresses the elastic spring, and moves in forward and rearward directions so as to operate at a grounded state. A cam stick(11) elastically supported by a plate spring moves in a preset direction along a guide path of a cam operation portion(3a) arranged at a bottom surface of the plunger. The fixing ground portion has at least one ground member including an off-terminal and an on-terminal. The operating ground portion has a ground element(41) having a width capable of grounding a common terminal and the on-terminal in a widthwise direction. The ground element is bent to be grounded to each of the grounding members of the fixing ground portion. The plate spring has an inclined portion formed by inclining an end of an elastic piece which is bent toward a front portion of a main body(100). The plate spring elastically supports the cam stick in a preset cam movement direction.