Importance

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Abstract

A round bender is disclosed. The round bender may include a plurality of bending roll units disposed along a process line between a pair of bender frames so as to bend a straight shaped beam to have a curvature. Each of the plurality of bending roll units may include upper and lower bending rolls rotating between the pair of bender frames and may be adapted to bend the shaped beam to have the curvature when the shaped beam passes between the upper and lower bending rolls. A lower bending roll of a rearmost bending roll unit disposed on a rearmost part of the process line may be configured to be rotatable with reference to an upper bending roll of the rearmost bending roll unit so as to change a curvature radius of some portion of the shaped beam.

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First Claim