Patent attributes
An articulated roller assembly for a bent bar comprising an articulated roller configured to spin relative to the bent bar. The bent bar generally comprises at least one bent portion and at least one straight portion. The articulated roller is designed to be fitted over the bent portion of the bar to be positioned on the at least one straight portion of the bar where it spins freely. The articulated rollers comprise a series of cylindrical rigid bushings surrounded by a flexible, deformable sleeve. The bushings have an inner diameter and length such that the articulated roller can be fitted over the bent portion of the bar. In some examples, the inner diameter and length of the bushings are a function of the outer diameter of the bent bar and the radius of the bend in the bent portion of the bar.
