Wiper device

A wiper device comprising:

• a pivot shaft to which a wiper is coupled;
• a pivot holder that includes a tubular pivot support portion and a mounting leg, wherein the pivot support portion pivotally supports the pivot shaft that is inserted into the pivot support portion, and the mounting leg projects radially outward from an outer circumferential surface of the pivot support portion;
• a water receiving cap that includes a tubular boss portion and an umbrella portion, wherein the boss portion is fitted onto the pivot support portion, and the umbrella portion extends radially outward from the boss portion;
• at least one washer fixed to a circumference of the pivot shaft at a portion projecting from a distal end of the pivot support portion, wherein
• at least part of the boss portion overlaps the washer in an axial direction of the pivot shaft,
• the umbrella portion includes a projection that projects in the axial direction of the pivot shaft, and
• the projection opposes the mounting leg in a circumferential direction of the pivot shaft without engaging the mounting leg in the axial direction of the pivot shaft in a state in which the water receiving cap is coupled to the pivot holder.