End cap for flat wiper blade apparatus and flat wiper blade apparatus thereof

A flat wiper blade apparatus comprising:

• a wiper rubber which has a catching recess formed in at least one end portion thereof and comes in contact with a glass surface of a vehicle and slides;
• a spring member which supports the wiper rubber and has an opening in at least one end portion thereof;
• a spoiler member to which the wiper rubber and the spring member are assembled;
• and
• an end cap which is coupled to at least one end portion of the spoiler member,
• wherein the end cap comprises:
• a main body which has a cross section corresponding to a cross section of the spoiler member and surrounds a portion of the spoiler member;
• a support member which contacts an end portion of the spoiler member and is formed inside the main body across the main body in a width direction;
• a hook which is formed on one side of the support member and is fastened to an opening of the spring member;
• and
• a protrusion which protrudes from one surface of the support member and is caught by the catching recess.