Cutter roller for road-grooving machines with frictionally engaged coupling of the cutter-roller tube on the cutter shaft

The invention relates to a cutter roller (1) for road-grooving machines with at least one cutter-roller tube (3, 4, 5) which has a plurality of tool holders (7) at its outer circumference and is detachably coupled to a cutter shaft (2) at its inner circumference (23). The object of the invention is to prevent a deflection of the play between cutter-roller tube (3, 4, 5) and cutter shaft (2) on the one hand and to enable continued use of already-used cutter rollers of conventional type with deflected play on the other hand. The invention is essentially solved by virtue of the fact that the cutter-roller tube consists of a slotted sleeve (3, 4, 5) which, after being slipped onto the cutter shaft (2), can be coupled by pressing together two lugs (13, 14), arranged on each side of its slot (10, 30, 31, 32) and firmly connected to the respective sleeve part (11, 12), by means of a screw connection (15) predominantly by the frictional engagement, resulting thereby, between inner circumference (23) of the sleeve (3, 4, 5) and outer circumference (22) of the cutter shaft (2).