METHOD FOR JOINING A LAYER OF MATERIAL IN ORDER TO PRODUCE A RAW TYRE BLANK

摘要

The invention relates to a method for joining an external layer (12) of material to a base layer (14) in order to produce a raw tyre blank that has an axis of revolution (X). The method comprises a step in which the external layer (12) is applied to the base layer (14), followed by a step in which the external layer (12) is joined to the base layer (14). The joining step is performed using a pressure application element (18) surrounding the external layer (12) and being elastically deformable between a so-called expanded configuration and a so-called pressure application configuration in which pressure is applied to the external layer (12), the pressure application element (18) exerting radial pressure on said external layer. The joining step comprises the following steps: passage of the pressure application element (18) from the expanded configuration into the pressure application configuration; and movement of the pressure application element (18) in the pressure application configuration along the axial direction (X) of the blank.