# US 8,464,775 B2 · Tool for tire uninstalling and installing machines > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,464,775 B2 - Document ID: US8464775B2 - Status: Granted - Kind: B2 - Application number: 12/781,581 - Filed: 2010-05-17 - Published: 2010-11-18 - Granted: 2013-06-18 - Earliest claimed: 2009-05-18 - Assignees: Teco S.R.L. - Applicants: Mauro Barbetti; Roberto Iotti; Gianfranco Pellacani - Inventors: Mauro Barbetti; Roberto Iotti; Gianfranco Pellacani - Web page: https://patentgrep.com/patent/US8464775B2 ## CPC - B60C 25/13: acting axially on a part of the bead or side wall only at localised regions of the bead or side wall - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES ## Abstract A tool for tire uninstalling and installing machines includes an element for connection to a movable bearing member of the tire uninstalling and installing machine, which has a longitudinal axis, and a round contact element which is freely and rotatably supported by said connection member about a rotation axis and which has an external outline in contact with a contact portion of a side of a tire installed to a rim, the round element having a flared contacting and lifting surface suitable to contact and lift the tire from the rim, which has a base facing toward the rim and defining a first opposed vertex, touching means extending from the base toward the rim for touching a portion of the rim. ## Claims ### Claim 1 A tool for tire uninstalling and installing machines comprising: a joining member to a movable bearing element of a tire uninstalling and installing machine, the joining member having a longitudinal axis; a round contact element which is born free to rotate by said joining member around a rotation axis and which has an external contact outline configured to contact a side of a tire installed on a rim, said round contact element having: a flared contacting and lifting surface suitable to contact and lift said tire from said rim, said flared contacting and lifting surface extending from a base turned toward said rim and defining a first apex; and touching means having a cylindrical base and frustoconical extension portion configured to contact a peripheral portion of said rim, said touching means protruding from said base toward said rim in a direction opposite to said flared contacting and lifting surface. ### Claim 2 (depends on 1) The tool according to claim 1, wherein said rim comprises at least a peripheral outer edge. ### Claim 3 (depends on 1) The tool according to claim 1, wherein in a working condition of said round contact element, said rotational axis is tilted in respect of said longitudinal axis at an acute angle. ### Claim 4 (depends on 1) The tool according to claim 1, wherein said touching means comprise: a first joining portion to said base; and a second extending portion having a flared surface and defining a second apex opposed to said first apex with respect of said outer contact outline, said first joining portion and said extending portion being co-axial with said round element. ### Claim 5 (depends on 4) The tool according to claim 4, wherein said first joining portion is cylindrically shaped and is continuously connected to said second extending portion. ### Claim 6 (depends on 4) The tool according to claim 4, wherein said external contact outline and said flared surface of said second extending portion lie on a first common lying plane which is tangent to both of them and perpendicular to said longitudinal axis. ### Claim 7 (depends on 4) The tool according to claim 4, wherein said first common lying plane is parallel to a second common lying plane which is defined by peripheral edges of said rim arranged in a working position, fixed onto a turntable of the tire uninstalling and installing machine. ### Claim 8 (depends on 7) The tool according to claim 7, wherein in operation said first common lying plane and second common lying plane coincide reciprocally. ### Claim 9 (depends on 1) The tool according to anyone of claim 1, wherein said touching means comprise a contact sensor to which moving means configured to move said movable bearing element are enslaved. ### Claim 10 A tire uninstalling and installing machine comprising: a tool for the tire uninstalling and installing machine comprising: a joining member to a movable bearing element of the tire uninstalling and installing machine, the joining member having a longitudinal axis; and a round contact element which is born free to rotate by said joining member around a rotation axis and which has an external contact configured to contact a side of a tire installed on a rim, said round contact element having: a flared contacting and lifting surface suitable to contact and lift said tire from said rim, said flared contacting and lifting surface extending from a base turned toward said rim and defining a first opposed apex; and touching means having a cylindrical base and frustoconical extension portion configured to contact a peripheral portion of said rim, said touching means protruding from said base toward said rim in a direction opposite to said flared contacting and lifting surface.