Wiper system for sensor cleaning

A wiper system for sensor cleaning, comprising:

• a frame comprising a sensor accommodation space with an open front;
• a window member coupled to the frame to transparently close the front of the sensor accommodation space;
• a pivot shaft arranged on an outer side of the window member, arranged in a direction perpendicular to the window member, and rotatably installed on the frame;
• a cantilever-shaped head of which one end is fixed to the pivot shaft;
• a retainer coupled to the other end of the head and installed to be rotatable with respect to a first hinge shaft within a certain angle with respect to the head;
• a blade holder rotatably coupled to an end portion of the retainer with respect to a first reference shaft arranged in a direction perpendicular to the first hinge shaft in space;
• a wiper blade detachably installed on the blade holder to clean a surface of the window member;
• and
• a pantograph arm comprising an end and another end, the end being rotatably coupled to the blade holder with respect to a second reference shaft spaced apart from the first reference shaft in parallel with the first reference shaft, and the other end being arranged at a position eccentric by a certain distance from the pivot shaft and rotatably coupled to the frame with respect to a third reference shaft parallel with the second reference shaft,
• wherein the first reference shaft is a structure formed integrally with the retainer,
• the second reference shaft and the third reference shaft are structures formed integrally with the pantograph arm, and
• the retainer forms a roof structure with an open side wall to prevent interference in a process of movement of the pantograph arm.