Variable rear spoiler apparatus of rear bumper for vehicle

A vehicle with a variable rear spoiler apparatus, the variable rear spoiler comprising:

• a linkage mechanism installed on a bumper back beam, the linkage mechanism configured to be rotated and having a length varying in a vertical direction during a rotation of the linkage mechanism;
• a spoiler connected to the linkage mechanism to move up and down during the rotation of the linkage mechanism;
• a first driving mechanism installed at the bumper back beam, the first driving mechanism comprising a first rotation shaft configured to undergo rotation and connected to the linkage mechanism to transfer a torque, and configured to rotate the linkage mechanism by the rotation of the first rotation shaft;
• and
• a second driving mechanism connected to the first rotation shaft, the second driving mechanism configured to move up and down together with the spoiler by the rotation of the first rotation shaft and comprising a length varying portion connected to an end of the spoiler so that the spoiler is tilted by a length varying operation of the length varying portion.

A method of operating a variable rear spoiler apparatus of a rear bumper for a vehicle, the method comprising:

• rotating a linkage mechanism installed on a bumper back beam, the linkage mechanism having a length varying in a vertical direction during the rotating;
• moving a spoiler up and down by the rotation of the linkage mechanism, the spoiler connected to the linkage mechanism to move up and down;
• transferring a torque for the rotating through a first driving mechanism installed at the bumper back beam, the first driving mechanism comprising a first rotation shaft connected to the linkage mechanism;
• and
• moving a second driving mechanism connected to the first rotation shaft up and down together with the spoiler by the rotation of the first rotation shaft;
• and
• tilting the spoiler by a length varying operation of a length varying portion connected to an end of the spoiler.