Conveyor belt training idler roller assemblies

A drag operated training idler roller assembly comprising:

• an idler roller unit comprising:
• at least one idler roller mounted for free rotation on at least one axle:
• a suspension formation associated with each end of the idler roller unit;
• wherein an end of the idler roller unit is supported relative to a conveyor structure such that the idler roller unit is operatively mounted relative to a conveyor belt to extend transversely relative thereto and to support a region of the conveyor belt;
• a downwardly extending support arrangement coupled to the conveyor structure at a position above the idler roller and the supported conveyor belt, the support arrangement comprising:
• a support arm to which each suspension formation is attached, wherein the support arrangement in each case enables the support arm and suspension formations to slew in generally vertical planes extending in the general direction of travel of the conveyor belt;
• and wherein lateral drift of the conveyor belt from a central desired position on the idler roller unit towards one or other end thereof causes the idler roller unit to slew in a plane generally parallel to that of the conveyor belt to move said one or other end in the general direction of travel of the conveyor belt so as to guide the conveyor belt to return to the said central desired position in response to increased drag between the conveyor belt and assembly of idler roller unit and support arrangement at or towards said one or other end thereof.