# US 10,309,499 B2 · Drive roller > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,499 B2 - Document ID: US10309499B2 - Status: Granted - Kind: B2 - Application number: 15/149,657 - Filed: 2016-05-09 - Published: 2016-11-17 - Granted: 2019-06-04 - Earliest claimed: 2015-05-12 - Assignees: Messier-Bugatti-Dowty - Applicants: Messier-Bugatti-Dowty - Inventors: Norbert Lartigue - Web page: https://patentgrep.com/patent/US10309499B2 ## CPC - F16H 13/04: with balls or with rollers acting in a similar manner - B64C 25/405: {Powered wheels, e.g. for taxing} - F16H 55/32: Friction members - Y02T 50/80: Energy efficient operational measures, e.g. ground operations or mission management - F16H: GEARING - B64C: AEROPLANES; HELICOPTERS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A roller (1) having a rigid reinforcement (4) defining a hub (5) for rotation of the roller about an axis of rotation X and a plurality of bars (6) regularly arranged around the hub (5) and extending parallel to the axis X. The roller further has bushings (10), each engaged on a respective one of the bars (6) and each comprising an outer rigid ring (11) surrounding a bushing body (12) made of deformable material. ## Claims ### Claim 1 A drive roller (1) comprising: a rigid reinforcement (4) defining a hub (5) for rotation of the roller about an axis of rotation X and a plurality of bars (6) regularly arranged around the hub (5) and extending parallel to the axis X; and bushings (10), each engaged on a respective one of the bars (6) and each comprising an outer rigid ring (11) surrounding a bushing body (12) made of deformable material. ### Claim 2 (depends on 1) The roller according to claim 1, including a deformable band (22) extending around the bushings in order to define a tread for the roller. ### Claim 3 (depends on 2) The roller according to claim 2, including a roller body (24) made of deformable material extending in the space between the hub and the deformable band and encompassing the bushings. ### Claim 4 (depends on 1) The roller according to claim 1, wherein the rigid reinforcement (4) further includes two lateral flanks (27) fastened to the hub (5), each end of each bar (6) being fastened to one of the lateral flanks. ### Claim 5 (depends on 1) A drive system for driving a wheel in rotation, the drive system comprising at least one drive roller (1) according to claim 1 and a running track (2) mounted on the wheel, the running track presenting obstacles in the form of undulations (3). ### Claim 6 (depends on 5) The drive system according to claim 5, wherein a pitch of the bushings corresponds to a pitch of the undulations. ### Claim 7 A drive roller (1) comprising: a rigid reinforcement (4) defining a hub (5) for rotation of the roller about an axis of rotation X and a plurality of bars (6) regularly arranged around the hub (5) and extending parallel to the axis X; and bushings (10), each engaged on a respective one of the bars (6) and each comprising an outer rigid ring (11) surrounding a bushing body (12) made of deformable material, wherein the bushing body (12) is subdivided into two half-bodies (12a, 12b) arranged circumferentially on either side of the associated bar (6) and defining two first cavities (16) radially on either side of the associated bar (6). ### Claim 8 (depends on 7) The roller according to claim 7, wherein a first cavity body (17) of deformable material extends in each first cavity (16), the deformable material of the first cavity body being less rigid than the material of the bushing body (12). ### Claim 9 A drive roller (1) comprising: a rigid reinforcement (4) defining a hub (5) for rotation of the roller about an axis of rotation X and a plurality of bars (6) regularly arranged around the hub (5) and extending parallel to the axis X; and bushings (10), each engaged on a respective one of the bars (6) and each comprising an outer rigid ring (11) surrounding a bushing body (12) made of deformable material, wherein each bushing further includes a rigid cylindrical insert (13), each rigid cylindrical insert being connected to the associated bar by an insert body (14) of deformable material. ### Claim 10 (depends on 9) The roller according to claim 9, wherein each insert body is subdivided into two half-bodies (14a, 14b) arranged circumferentially on either side of the associated bar (6) and defining two second cavities (19) radially on either side of the associated bar. ### Claim 11 (depends on 10) The roller according to claim 10, wherein a second cavity body (20) of deformable material extends in each second cavity, the deformable material of the second cavity body being less rigid than the material of the bushing body. ### Claim 12 (depends on 9) The roller according to claim 9, wherein cavities (30) are formed between adjacent bushings. ### Claim 13 (depends on 12) The roller according to claim 12, wherein a cavity body (31) of deformable material extends in each cavity, the deformable material of the cavity bodies being less rigid than the material of the bushing bodies. ### Claim 14 (depends on 12) The roller according to claim 12, wherein the cavities (30) do not contain any material.