Abstract: A switch device for a vehicle includes: a case member having on one end side thereof an electrical connection part; and an operating member provided on an opposite end side of the case member to face a vehicle compartment. The case member includes, on an upper wall disposed on an upper side in up-down direction when mounting the case member on a vehicle body interior material: a dividing wall extending in width direction of the case member, orthogonal to the up-down direction, along the material; a first rib extending from the dividing wall toward the one end side and dividing the upper wall into a first region going into the connection part and a second region not going thereinto, and a second rib extending in the first region from an intermediate part of the first rib toward the one end side to partition the dividing wall from the connection part.

Abstract: A switch device for a vehicle includes: a case member having on one end side thereof an electrical connection part; and an operating member provided on an opposite end side of the case member to face a vehicle compartment. The case member includes, on an upper wall disposed on an upper side in up-down direction when mounting the case member on a vehicle body interior material: a dividing wall extending in width direction of the case member, orthogonal to the up-down direction, along the material; a first rib extending from the dividing wall toward the one end side and dividing the upper wall into a first region going into the connection part and a second region not going thereinto, and a second rib extending in the first region from an intermediate part of the first rib toward the one end side to partition the dividing wall from the connection part.