# US 2013/0240331 A1 · Roller with Ribs for Driving a Crop Conveying Belt > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0240331 A1 - Document ID: US20130240331A1 - Status: Published application - Kind: A1 - Application number: 13/887,488 - Filed: 2013-05-06 - Published: 2013-09-19 - Earliest claimed: 2011-03-16 - Assignees: Kondex Corporation; MacDon Industries Ltd. - Applicants: Macdon Industries Ltd; Kondex Corporation - Inventors: Daniel Cormier; Francois R. Talbot; Keith A. Johnson; Neal J. Stoffel - Web page: https://patentgrep.com/patent/US20130240331A1 ## CPC - A01D 57/20: with conveyor belts - A01D 61/002: {transversal conveying devices} - A01D 61/006: {with rollers, e.g. adjustable} - A01D: HARVESTING; MOWING ## Abstract A crop harvesting header with a cutter bar and a draper assembly has a draper canvas driven by a drive roller with a cylindrical roller body having an outer surface surrounding an axis of rotation of the roller for engaging an inner drive surface of a canvas wrapped therearound. The roller has a plurality of ribs arranged on the outer surface of the roller body extending along a part of the body in an axial direction and angularly spaced around the outer surface. The ribs have a height less than 6 mm and a width less than 6 mm arranged such that the ribs do not engage into any recesses in the drive surface of the canvas. ## Claims ### Claim 1 A drive roller for a driving a belt arranged for conveying harvested crop material comprising: a cylindrical metal roller body having an outer metal cylindrical surface surrounding an axis of rotation of the roller for engaging the belt; and a plurality of raised elements on the outer metal surface of the roller body so as to be raised to a height from the metal surface; the raised elements being arranged in a pattern on the metal surface so as to leave areas of the metal surface between the raised elements which are free from the raised elements so that the metal surface is bare; wherein the height of the raised elements from the metal surface is less than 6 mm; wherein the raised elements comprise a material which is, relative to the outer metal cylindrical surface, a hard wear resistant material; and wherein the material comprising the raised elements is clad as an additional material onto the outer metal cylindrical surface of the roller. ### Claim 2 (depends on 1) The roller according to claim 1 wherein the raised elements are arranged only at ends of the outer metal cylindrical surface of the roller such that each end of the roller includes a respective section of the raised elements which extends from the end of the roller to a position spaced from the section of raised elements at the other end of the roller leaving a center portion extending longitudinally along the cylindrical surface so that the center portion is bare of the raised elements. ### Claim 3 (depends on 1) The roller according to claim 1 wherein the content of the hard wear-resistant material in the raised elements is greater than 30 per cent. ### Claim 4 (depends on 1) The roller according to claim 1 wherein the raised elements comprise ribs where each rib is spaced from the next by an area of the metal surface which is bare. ### Claim 5 (depends on 4) The roller according to claim 4 wherein the ribs extend generally longitudinally of the roller and are angularly spaced around the roller. ### Claim 6 (depends on 1) The roller according to claim 1 wherein the height of the raised elements is in the range 1 to 3 mm. ### Claim 7 (depends on 1) The roller according to claim 1 wherein the additional material is carbide. ### Claim 8 A conveyer for harvested crop material comprising: a belt for transportation of the harvested crop material; and a guide roller comprising: a cylindrical metal roller body having an outer metal cylindrical surface surrounding an axis of rotation of the roller for engaging a surface of the belt; and a plurality of raised elements on the outer metal surface of the roller body so as to be raised to a height from the metal surface; the raised elements being arranged in a pattern on the metal surface so as to leave areas of the metal surface between the raised elements which are free from the raised elements so that the metal surface is bare; wherein the height of the raised elements from the metal surface is less than 6 mm; wherein the raised elements comprise a material which is, relative to the outer metal cylindrical surface, a hard wear resistant material; and wherein the material comprising the raised elements is clad as an additional material onto the outer metal cylindrical surface of the roller. ### Claim 9 (depends on 8) The conveyor according to claim 8 wherein the raised elements are arranged only at ends of the outer metal cylindrical surface of the roller such that each end of the roller includes a respective section of the raised elements which extends from the end of the roller to a position spaced from the section of raised elements at the other end of the roller leaving a center portion extending longitudinally along the cylindrical surface so that the center portion is bare of the raised elements. ### Claim 10 (depends on 8) The conveyor according to claim 8 wherein the outer metal surface of the roller is formed of steel and the hard wear resistant material of the raised elements is carbide. ### Claim 11 (depends on 8) The conveyor according to claim 8 wherein the content of the hard wear-resistant material in the raised elements is greater than 30 per cent. ### Claim 12 (depends on 8) The conveyor according to claim 8 wherein the raised elements comprise ribs where each rib is spaced from the next by an area of the metal surface which is bare. ### Claim 13 (depends on 12) The conveyor according to claim 12 wherein the ribs extend generally longitudinally of the roller and are angularly spaced around the roller. ### Claim 14 (depends on 8) The conveyor according to claim 8 wherein the height of the raised elements is in the range 1 to 3 mm. ### Claim 15 (depends on 8) The conveyor according to claim 8 wherein the additional material is carbide.