Wiper blade assembly structure

The wiper blade assembly structure according to the present invention comprises a main arm (200) which operates by a driving force supplied by a wiper motor; a support frame (30) which is connected to the main arm (200) and receives the driving force from the main arm (200) and has a space unit (31) formed in a certain size in an upper central part thereof and a lower coupling member formed in the space unit to be coupled to a replaceable adaptor (60); a replaceable adaptor (60) which is detachably attached to the space unit (31) of the support frame (30) by a fixing means using the fixing pin and couples the main arm (200) to the support frame (30); a blade fixer (20) which is coupled to a lower part of the support frame (30); a blade (10) which is coupled to the blade fixer (20); and the replaceable adaptor (60) having a coupling part formed in a central part thereof to be detachably coupled to a front end coupling part of the main arm (200), and having an upper coupling member formed in a lower part thereof corresponding to the lower coupling member of the support frame (30), and having a size to be inserted into an inside of the space unit (31) of the support frame (30). The wiper blade assembly according to the present invention connects various types of wiper main arms to a single blade assembly to thereby improve utilization of the wiper and saves manufacturing costs.