Variable belt molding structure for vehicle door

1. A variable belt molding structure for a vehicle door, the variable belt molding structure comprising:

a skin disposed in a fixed quarter window and a rear door window formed in a rear door of a vehicle to have a width that is varied in a longitudinal direction thereof;

a carrier portion internally coupled to the skin to maintain air-tightness by being in contact with a window glass of the rear door window;

a clip mounted to be internally coupled to the carrier portion and mounted in a door panel of the rear door; and

a first mounting clip coupled to a fixed quarter window bracket attached to the fixed quarter window,

wherein the skin includes:

a first skin extension configured to extend downward in a height direction of the vehicle; and

a second skin extension integrally formed with the first skin extension to extend in a horizontal direction thereof or a horizontal and upward direction thereof, and

wherein a first flange is formed in the second skin extension of the skin to protrude downward in the height direction of the vehicle, and the first mounting clip is disposed in the first flange.

2. The variable belt molding structure of claim 1 , wherein one or more coupling protrusions are formed in internal surfaces of the first skin extension and the second skin extension of the skin, and

one or more coupling grooves into which the coupling protrusions are inserted to be coupled are formed in the carrier portion.

3. The variable belt molding structure of claim 2 , wherein the carrier portion includes:

a carrier body formed in the one or more coupling grooves;

one or more sealing ribs integrally formed in the carrier body to maintain air-tightness by being in contact with the window glass; and

a rigid member inserted into the carrier body to be integrally formed therewith.

4. The variable belt molding structure of claim 1 , wherein the clip is formed in an inverted ‘U’-shape having a downwardly opened engagement groove.

5. The variable belt molding structure of claim 3 , wherein an end portion of the rigid member is engaged with an end portion of the clip.

6. The variable belt molding structure of claim 1 , wherein a first width in which the skin is disposed in the fixed quarter window is greater than a second width in which the skin is disposed in the rear door window.

7. The variable belt molding structure of claim 1 , wherein a cushion member is coupled to an internal surface of the skin.

8. The variable belt molding structure of claim 7 , wherein the cushion member is attached to the skin and the door panel by use of a double-sided adhesive tape.

9. The variable belt molding structure of claim 1 , wherein a second flange is formed in the first skin extension of the skin, a second mounting clip is mounted in the second flange, and the second mounting clip is coupled to the fixed quarter window bracket.