Patent ID: 7753082

Claim:
A tube comprising: a tube body portion through which a fluid flows, a protector portion having an interior hollow space in which the tube body portion is provided, and an exterior wall defining the interior hollow space, wherein the exterior wall includes a first flat wall and a second flat wall which are arranged in positions opposed to each other with the tube body portion disposed therebetween, the second flat wall being inclined with respect to the first flat wall, and a single supporting portion supporting the tube body portion inside the hollow space in a position spaced from an inner surface of the hollow space, wherein the single supporting portion extends from the exterior wall of the protector portion and across the hollow space to support the tube body portion at a middle portion thereof, wherein the single supporting portion is adapted to deform to prevent the tube body portion from deforming when an external force is applied to the protector portion, the single supporting portion consisting of: a first supporting wall extending from the exterior wall, the first supporting wall being aligned with a first line that is perpendicular to the first flat wall and passing through a center of the tube body portion; and a second supporting wall arranged in a position opposed to the first supporting wall with the tube body portion disposed between the first and second supporting walls, the second supporting wall being aligned with a second line that is perpendicular to the second flat wall and passing through the center of the tube body portion, wherein the first line and the second line intersect at a non-zero angle.