Switch device

A switch device comprising:

• a slider that advances and retreats in a front-back direction;
• a push button that is integrally provided at a front end of the slider;
• a switch contact whose on and off states are switched according to an operation for pushing down the push button to cause the slider to retreat;
• a biasing member that biases the slider in an advancing direction in order to return the push button and the slider to a non-manipulated position;
• a case in which the switch contact, the biasing member, and the slider are assembled, the push button being disposed in an opening at a front end of the case;
• a front-portion constituent member that is attached to the case while disposed around the push button in the opening;
• and
• a coil that is wound around a bobbin formed in an outer circumference of the front-portion constituent member,
• wherein a drain that causes a liquid to flow down to a lower portion on a rear side of the bobbin through an inside of the bobbin is formed in the front-portion constituent member, the liquid invading from a gap between an outer circumference of the push button and the front-portion constituent member, and
• a drain port that is joined to and communicated with a lower-end opening of the drain with no gap therebetween is formed on a bottom surface side of the case, and at least the coil cannot be visually recognized from the drain port.