Air duct for vehicle

1. An air duct for a vehicle, comprising:

a first duct component formed from a rigid material through which external air is introduced; and

a second duct component formed from a pliable material through which introduced air is discharged towards an air filter,

wherein the second duct component is integrally formed with the first duct component,

wherein the second duct component is injection-molded and the second duct component is disposed circumferentially on a first side thereof with a plurality of coupling apertures, and the first duct component is injection-molded into one piece with the second duct component to fill the coupling apertures of the second duct component.

2. The air duct of claim 1 , wherein the coupling apertures have diameters that increase towards a medial side of the second duct component.

3. The air duct of claim 1 , wherein the first duct component includes a lower duct component attached to a lower end thereof.

4. The air duct of claim 1 , wherein the second duct component has a bellows shape.

5. The air duct of claim 1 , wherein the second duct component is disposed circumferentially on a second side thereof with a plurality of ribs positioned at a predetermined angle.

6. The air duct of claim 1 , wherein the first duct component is formed as an upper duct component, and the first duct component is opened towards a lower portion thereof.

7. The air duct of claim 6 , wherein the lower duct component is attached to the lower portion of the first duct component and defines a complete air passage.

8. The air duct of claim 5 , wherein the second side of the second duct component is coupled to an air filter.

9. The air duct of claim 5 , wherein the second side includes the ribs that seal a portion disposed between the second duct component and the air filter.