Abstract: A diffusion restriction portion is provided to a washer nozzle of a washer device to be opened outside along a direction, in which diffusive flow of cleansing liquid causing self-oscillation is jetted as a sector-shaped diffusive flow in its widthwise direction of the vehicle. Besides, the jetted diffusive flow is restricted in diffusion in its vertical direction by the diffusion restriction portion to be regulated. The washer nozzle is arranged on a back surface side of a rear end edge of an engine hood of a vehicle, and wiper arms are arranged lengthwise along the widthwise direction of the vehicle when being in a stopped position. Even in this case, the jetted diffusive flow can be sprinkled over a wide range in the widthwise direction of the vehicle. Besides, the diffusive flow can be sprinkled on a target sprinkle point from a narrow gap between the wiper arms and the rear end edge of the engine hood without interference.

Abstract: A first lever is rotatably supported by a first support shaft connected to a vehicle body. The first lever has a first connection spaced away from the first support shaft. The first lever is reciprocally swung about the first support shaft by a driving force transmitted from a motor. A second lever is rotatably supported by a second support shaft connected to the vehicle body. The second lever has a second connection. A third lever is rotatably connected to both the first connection and the second connection. The third lever has an arm support shaft arranged at an offset position offset from a line connecting between the first connection and the second connection. A wiper arm is secured to the arm support shaft. A wiper blade is connected to a distal end of the wiper arm.

Abstract: A first lever is rotatably supported by a first support shaft connected to a vehicle body. The first lever has a first connection spaced away from the first support shaft. The first lever is reciprocally swung about the first support shaft by a driving force transmitted from a motor. A second lever is rotatably supported by a second support shaft connected to the vehicle body. The second lever has a second connection. A third lever is rotatably connected to both the first connection and the second connection. The third lever has an arm support shaft arranged at an offset position offset from a line connecting between the first connection and the second connection. A wiper arm is secured to the arm support shaft. A wiper blade is connected to a distal end of the wiper arm.