Switch device

A switch device comprising:

• a rod movable forward/backward along an axis line in an axis line direction in association with an operation of a brake pedal;
• a main body case in which one end side of the rod in a longitudinal direction is disposed and which supports the rod such that the rod is movable in the axis line direction;
• a movable board disposed in the main body case such that the movable board is displaceable in the axis line direction;
• a connecting mechanism configured to connect the rod and the movable board;
• the movable board displaceable in the axis line direction via the forward/backward movement of the rod in the axis line direction such that a movable contact point provided in the movable board is in contact with or separate from a fixed contact point;
• a holder disposed in the main body case to support the rod to be incapable of rotating relatively and to be movable in the axis line direction;
• the connecting mechanism including:
• a protruding portion radially protruding from an outer periphery of the rod;
• and
• a wall portion provided in the movable board and surrounding the outer periphery of the rod, the wall portion configured such that, when the rod is rotated around the axis line after pushing the rod into the main body case by a predetermined length from an initial position, a tooth portion disposed on an outer periphery of the protruding portion is meshed with a tooth portion disposed on an inner periphery of the wall portion connecting the rod and the movable board;
• wherein, in the main body case, the holder is rotatable relative to the main body case within a predetermined angle range from a reference position around the axis line;
• and
• wherein, when the holder is located in the reference position, the protruding portion and the wall portion are disposed to be shifted in a phase in a circumferential direction around the axis line.