Invention Grant
- Patent Title: Method for controlling the footprint area of a tyre and tyre for vehicle wheels
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Application No.: US14408081Application Date: 2013-06-06
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Publication No.: US10457099B2Publication Date: 2019-10-29
- Inventor: Piero Losi
- Applicant: PIRELLI TYRE S.P.A.
- Applicant Address: IT Milan
- Assignee: PIRELLI TYRE S.P.A.
- Current Assignee: PIRELLI TYRE S.P.A.
- Current Assignee Address: IT Milan
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: ITMI2012A1097 20120622
- International Application: PCT/IB2013/054628 WO 20130606
- International Announcement: WO2013/190419 WO 20131227
- Main IPC: B60C3/06
- IPC: B60C3/06 ; B60C19/00 ; B29D30/06 ; B29D30/08

Abstract:
A method for controlling the symmetry of the footprint area of a tire running on a straight trajectory with camber angle different from zero, includes the steps: reducing the contact pressure of the tire on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); and disposing any medium line of the tread band placed in correspondence with the footprint area substantially parallel to the ground. A tire and a wheel for motor-vehicles, wherein the medium line of the tread band and the rotation axis of the tire form an angle substantially equal in absolute value to the camber angle. A process for manufacturing such tires, wherein a green tire with symmetric outer profile is deformed during the vulcanizing and moulding step until a predetermined angle different from zero is formed between any medium line of the tread band and the rotation axis of the vulcanized tire.
Public/Granted literature
- US20150174959A1 METHOD FOR CONTROLLING THE FOOTPRINT AREA OF A TYRE AND TYRE FOR VEHICLE WHEELS Public/Granted day:2015-06-25
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