Method for applying strips of material from an unvulcanised raw rubber mixture to a tyre construction drum

摘要

The method involves arranging a tire carcass (6) on a tire building drum. A raw rubber mixture is provided for manufacturing a material strip (9) by an extruder (1). The raw rubber mixture is supplied to a compression device (2) for applying high working pressure in a material. The material is pressed in a flexible hose (3). A nozzle (4) is provided at an end of the hose and positioned in front or side of the tire building drum. The material is spirally wound by the nozzle at the hose on the tire carcass on the tire building drum, where the material strip exhibits a cross sectional contour. An independent claim is also included for a device for applying a material strip of an unvulcanized raw rubber mixture on a tire building drum for preparation of a vehicle tire.