Blade for wind power generator

A blade for a wind power generator comprising:

• a main spar including:
• an upper main spar flange and a lower main spar flange whose both ends are protruded towards the front and rear side respectively;
• a front main spar web and a rear main spar web which are connecting the upper main spar flange and the lower main spar flange;
• a first body, located in the front side of the main spar, including an inverted D-type rib;
• and
• a second body, located in the rear side of the main spar, including a curved rib, wherein
• the inverted D-type rib comprises:
• a vertical frame;
• and
• a block frame extendedly formed from the upper side and the lower side of the vertical frame respectively and convexly formed towards the front side, wherein,
• the curved rib comprises:
• a first vertical frame and a second vertical frame;
• a first curved frame connecting the upper side of the first vertical frame and the second vertical frame;
• and
• a second curved frame connecting the lower side of the first vertical frame and the second vertical frame, wherein
• the rear side surface of the vertical frame is coupled (bonded) to the front side surface of the front main spar web with an adhesive, and
• a step formed in the rear side surface of the upper side of the vertical frame is coupled (bonded) to the protruded front side surface and the lower side surface of the upper main spar flange with an adhesive, and
• a step formed in the rear side surface of the lower side of the vertical frame is coupled (bonded) to the protruded front side surface and the upper side surface of the lower main spar flange with an adhesive, and
• the front side surface of the first vertical frame is coupled (bonded) to the rear side surface of the rear main spar web with an adhesive, and
• a step formed in the front side surface of the upper side of the first vertical frame is coupled (bonded) to the protruded rear side surface and the lower side surface of the upper main spar flange with an adhesive, and
• a step formed in the front side surface of the lower side of the first vertical frame is coupled (bonded) to the protruded rear side surface and the upper side surface of the lower main spar flange with an adhesive