Supporting roller
AssigneeRexnord Marbett S.p.A.
InventorsDaniele Coen, Piero Mondello
Life of this patent
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Abstract
A supporting roller (12, 122, 123) that has a greater than usual capacity for constant operation comprises a skirt (14), for supporting a return side (16) of an endless chain of a chain conveyor, and, coaxial with the skirt (14), a hub (18) designed to rotate idly on a journal (19), and, in addition, a sleeve (20) made of a material having high friction laid over the skirt (14), in particular overmolded around the skirt (14) or slid axially onto the skirt (14).
Claims27
A supporting roller of the type having a skirt, for supporting a return side of an endless chain of a chain conveyor and, coaxial with the skirt, a hub designed to rotate idly on a journal, wherein the roller comprises a sleeve made of a material having high friction laid over the skirt, said sleeve having an inward annular projection tightly clamped between first and second opposing shoulders of said hub and said skirt, respectively.
A supporting roller of the type having a skirt, for supporting a return side of an endless chain of a chain conveyor and, coaxial with the skirt, a hub designed to rotate idly on a journal, wherein the roller comprises a sleeve made of a material having high friction laid over the skirt;
- wherein the hub fits telescopically into the skirt;
- wherein a plurality of spokes extend inwards from the skirt and join a tube positioned coaxially with the skirt and forming a seat for the hub;
- wherein an end wall of the skirt extends from the latter towards the tube;
- wherein the sleeve is overmoulded around the skirt and extends over the end wall of the skirt so that it covers it externally.
A supporting roller of the type having a skirt, for supporting a return side of an endless chain of a chain conveyor and, coaxial with the skirt, a hub designed to rotate idly on a journal, wherein the roller comprises a sleeve made of a material having high friction laid over the skirt;
- wherein the hub and the skirt are connected by a snap connection;
- wherein there is at least one seat in the skirt for at least one tooth projecting from the hub to snap into to form the said snap connection.
A support for a return side of an endless conveyor chain, comprising at least two supporting rollers rotating idly side by side on a journal, wherein each roller includes a hub mounted on the journal and supporting a skirt on which is disposed a friction sleeve, said sleeve having an inward annular projection tightly clamped between first and second opposing shoulders of said hub and said skirt, respectively.
Dependencies are inferred from the claim text.