Push switch

A push switch comprising:

• an operating slider integrated with an operating member, the operating slider having an inclined guide surface extending obliquely on one side wall thereof;
• a housing supporting the operating slider such that the operating slider is slidable in a push operation direction;
• an actuator supported in the housing, the actuator including a driven portion slidable on the inclined guide surface, the actuator being driven by the operating slider to be slidable in a direction substantially orthogonal to the push operation direction;
• a conductive sliding member attached to the actuator such that the sliding member is exposed on the housing;
• a return spring supported in the housing such that the return spring elastically urges the operating slider in the direction opposite to the push operation direction at all times;
• a heart cam mechanism including a cam groove provided for either one of a side wall opposite the one side wall of the operating slider and the housing and an engagement pin journaled by the other one such that the engagement pin is slidably engaged with the cam groove;
• a fixed contact provided for a circuit board such that the sliding member is allowed to be brought into contact with and separated from the fixed contact;
• and
• an outer casing holding the circuit board, wherein the outer casing is separate from the housing and the housing is fixed to the outer casing to dispose the housing apart from the circuit board and bring the sliding member into elastic contact with the circuit board.