Abstract: An object is to make it easy to specify, when a switch device for a vehicle gets wet, a path of liquid which attaches on the switch device. There are included: a switch member 13; a connector part 15 connected to the switch member 13; and a casing 14 enclosing the connector part 15, wherein in a state of being attached to a vehicle, an opening end part 14d of an outer circumferential part 14a of the casing 14 includes an end face 21 inclined relative to a direction of gravity G or a curved surface inclined relative to the direction of gravity.

Abstract: An object is to make it easy to specify, when a switch device for a vehicle gets wet, a path of liquid which attaches on the switch device. There are included: a switch member 13; a connector part 15 connected to the switch member 13; and a casing 14 enclosing the connector part 15, wherein in a state of being attached to a vehicle, an opening end part 14d of an outer circumferential part 14a of the casing 14 includes an end face 21 inclined relative to a direction of gravity G or a curved surface inclined relative to the direction of gravity.

Abstract: A switch unit includes an upper case that has an operation portion attached therein; a circuit board that has a switch attached thereto that is able to switch contact points by operation of the operation portion; and a lower case that fits into the upper case such that the lower case is surrounded by the upper case, and that accommodates the circuit board between the upper case and the lower case. A draining portion is provided at a side surface of the upper case, and the draining portion is integrally formed with a sidewall forming the side surface and protrudes downward, and has a width that gradually narrows from the top to the bottom thereof.

Abstract: A switch unit includes an upper case that has an operation portion attached therein; a circuit board that has a switch attached thereto that is able to switch contact points by operation of the operation portion; and a lower case that fits into the upper case such that the lower case is surrounded by the upper case, and that accommodates the circuit board between the upper case and the lower case. A draining portion is provided at a side surface of the upper case, and the draining portion is integrally formed with a sidewall forming the side surface and protrudes downward, and has a width that gradually narrows from the top to the bottom thereof.