TIRE BUILDING DRUM AND METHOD FOR TURNING-UP A TIRE COMPONENT

원문 (중국어)

A tire building drum and a method are provided for turning-up a tire component. The tire building drum comprises a drum body that is rotatable about a drum axis, an inflatable turn-up bladder extending in a circumferential direction about the drum axis around the drum body for turning-up a tire component supported on said turn-up bladder, and a plurality of pressing arms for pressing against the turn-up bladder during the turning-up of the tire component. The tire building drum further comprises a plurality of hinges for hingably connecting the pressing arms to the drum body. The plurality of hinges is located underneath the turn-up bladder when the turn-up bladder is uninflated. The tire building drum is further provided with an underlay extending between at least one hinge of the plurality of hinges and the turn-up bladder in a radial direction.