Disclosed is a tire building drum with a first bladder or sleeve, wherein the tire building drum has a first release member and a first actuator for generating a relative movement between the first release member and the drum body to move the first release member in a first release direction with respect to the drum body from a first fixation position in which the first release member fixates the first circumferential edge of the first bladder or sleeve to the drum body into a first release position in which the first release member releases the first circumferential edge from the drum body. Also disclosed is a method for operating the aforementioned tire building drum.

Disclosed is a tire building drum with a first bladder or sleeve, wherein the tire building drum has a first release member and a first actuator for generating a relative movement between the first release member and the drum body to move the first release member in a first release direction with respect to the drum body from a first fixation position in which the first release member fixates the first circumferential edge of the first bladder or sleeve to the drum body into a first release position in which the first release member releases the first circumferential edge from the drum body. Also disclosed is a method for operating the aforementioned tire building drum.

Each of a plurality of pressure rolls is displaced around the shaft member and pressurizes the tire constituent member. Each of a plurality of supporting parts supports the pressure roll rotatably from the inside of the pressure roll and is displaced integrally with the pressure roll. A plurality of pressure holes are formed in a plurality of points of the shaft member corresponding to positions of the plurality of pressure rolls so as to extend in the pressurization direction for the tire constituent member. Each of a plurality of moving members projects in the pressurization direction from the pressure hole so as to pressurize the pressure roll. Each of a plurality of supply pipes is arranged in the inside space around the shaft member so as to each supply the pressurizing medium for pressurizing the moving member into the pressure hole.

Each of a plurality of pressure rolls is displaced around the shaft member and pressurizes the tire constituent member. Each of a plurality of supporting parts supports the pressure roll rotatably from the inside of the pressure roll and is displaced integrally with the pressure roll. A plurality of pressure holes are formed in a plurality of points of the shaft member corresponding to positions of the plurality of pressure rolls so as to extend in the pressurization direction for the tire constituent member. Each of a plurality of moving members projects in the pressurization direction from the pressure hole so as to pressurize the pressure roll. Each of a plurality of supply pipes is arranged in the inside space around the shaft member so as to each supply the pressurizing medium for pressurizing the moving member into the pressure hole.

A system and method for building and curing a tire curing bladder is provided. In one embodiment, a system for curing a tire curing bladder is provided, the system comprising: a tire building drum, including: at least one end cap; and a cylindrical wall; wherein the tire building drum includes an axis of rotation and wherein the axis of rotation extends through the at least one end cap, and wherein the cylindrical wall includes at least one orifice; a mold, including: a mold ring oriented at least partially radially outwardly of the tire building drum; and at least one outside bead ring; and a tire curing press.