Coupling Apparatus of Wiper Arm

Disclosed herein is a coupling apparatus for a wiper arm, which can provide firm coupling between a wiper blade and the wiper arm. The coupling apparatus comprises a blade coupling part provided to the wiper blade and including front and rear plates and having an opening defined at upper portions of the front and rear plates and a support shaft having a rectilinear plane formed at either side of the support shaft, and a wiper arm coupling part integrally formed at one end with the wiper arm and including a slant insertion mechanism to cause the wiper arm to be slantly inserted onto the support shaft and to hold the support shaft so as not to be separated from the slant insertion mechanism by changing an inclination of the wiper arm after the wiper arm is inserted onto the support shaft.