Wiper device

摘要

A wiper device including a wiper arm, a wiper blade, and a washer nozzle. The wiper blade moves in a first direction and a second direction. The wiper arm is arranged at a position in the second direction with respect to the wiper blade when the wiper blade is at the home position. The washer nozzle is fixed to a position located toward a basal side from the wiper blade on a main arm or a sub-arm that is closer to the wiper blade. The washer fluid is ejected toward the distal portion of the wiper blade at a position in the first direction with respect to the wiper blade when the wiper blade is arranged at the home position. The falling point of the washer fluid is set at a position located toward the basal side of the wiper blade from a central part of the wiper blade.

主权项

1. A wiper device comprising:
a wiper arm including a main arm and a sub-arm;
the main arm including a main head and a main arm member, the main head being arranged at a basal portion of the main arm and being coupled to and pivoting integrally with a drive shaft, the main arm member being coupled to a distal portion of the main head and pivoting toward and away from a wiping surface;the sub-arm including a basal portion pivotally coupled to a driven shaft, the driven shaft being separated from the drive shaft, and the driven shaft rotating in cooperation with and following the pivoting of the main arm; a wiper blade pivotally coupled to a distal portion of the wiper arm with the main arm being arranged closer to the wiper blade than the sub-arm;
the wiper blade changing a wiping position for wiping the wiping surface between a first wiping direction and a second wiping direction;the wiper blade moving in the first wiping direction from a home position to an upper reversal position and moving in the second wiping direction from the upper reversal position to the home position;the wiper blade being interconnected to the main arm and the sub-arm and rotating relative to the pivoting of the main arm, and the wiper blade changing positions relative to the main arm and the sub-arm in cooperation with the pivoting of the main arm;the wiper blade is in the home position while the main arm and the sub-arm are arranged at corresponding positions in the second direction with respect to the wiper blade; a washer nozzle fixed to the main head of the main arm;
the washer nozzle being located at a position nearer a basal side of the wiper arm relative to the wiper blade; andthe washer nozzle ejecting washer fluid toward the wiping surface and in an ejection direction toward a distal end of the wiper blade in the first direction with respect to the wiper blade when the wiper blade is arranged at the home position, wherein a falling point of the washer fluid is set at a position located toward the basal side of the wiper blade from a longitudinally central part of the wiper blade, and wherein a hose is connected with the washer nozzle and the hose bends as the main head pivots.