Patent ID: 8627539

Claim:
A connector device for coupling a wiper arm of a “U” hook shape and a wiper blade, the connector device comprising: a coupling body surrounded by the wiper arm; a first support portion provided on an upper surface of the coupling body and extending from the coupling body in a form of a cantilever and for applying an elastic restoration force to the wiper arm to separate the wiper arm from the upper surface of the coupling body; a second support portion provided at a lower side of the coupling body and for supporting the wiper arm in a thicknesswise direction of the wiper arm to prevent the wiper arm from moving in the thicknesswise direction by accommodating an end portion of the wiper arm; a third support portion formed at an end portion of the second support portion and for preventing the wiper arm from moving in a lengthwise direction of the wiper arm, the third support portion being of a step shape; and, a fourth support portion protruding downward from a lower surface of the coupling body and arranged in front of the third support portion; wherein the second support portion is in a form of a hole with closed upper and lower sides and open front and rear sides, and a slot shaped hole is formed in a side surface of the second support portion to allow seeing of whether the wiper arm is appropriately assembled.