Patent Number: 6,757,955

Title: Method of removing a toroidal support from a tire

Abstract: A method of removing a toroidal support from a tyre includes the steps of positioning the toroidal support with the tyre at a station, disengaging a flange and counter-flange of the toroidal support from each other, moving the flange and counter-flange away from a plurality of sectors of the toroidal support, radially translating each sector toward a geometric reference axis of the toroidal support, removing each sector from the tyre, and, for at least one sector, turning the at least one sector about a second axis. When the toroidal support is assembled, the sectors are circumferentially distributed around the geometric reference axis and are operatively connected to each other by mutual engagement of the flange and counter-flange. The second axis is substantially normal to a direction radial to the geometric reference axis and lies in a first plane parallel to and offset from an equatorial plane of the tyre.

Inventors: Scarzello; Osvaldo (Turin, IT), Marchini; Maurizio (Seregno, IT)

Assignee: Pirelli Pneumatici S.p.A.

International Classification: B29D 30/08 (20060101); B29D 30/10 (20060101); B29D 30/12 (20060101); B23P 019/00 ()

Expiration Date: 07/06/2021