A tire building drum has a crown section with crown segments which are movable from a crown-down position into a crown-up position, wherein the crown segments together form a crown surface facing outwards in the radial direction, a leading edge and a shoulder that forms the transition from the crown surface to the leading edge, wherein the shoulder leaves a gap, wherein the tire building drum further includes a plurality of support members that extend in said gap, wherein each crown segment has a first side and a second side, wherein each crown segment further includes one or more guide channels, wherein each guide channel is arranged for receiving a respective one of the plurality of support members in the respective crown segment between the first side and the second side. Also disclosed is a method for tire building using the aforementioned tire building drum.

A tire building drum has a crown section with crown segments which are movable from a crown-down position into a crown-up position, wherein the crown segments together form a crown surface facing outwards in the radial direction, a leading edge and a shoulder that forms the transition from the crown surface to the leading edge, wherein the shoulder leaves a gap, wherein the tire building drum further includes a plurality of support members that extend in said gap, wherein each crown segment has a first side and a second side, wherein each crown segment further includes one or more guide channels, wherein each guide channel is arranged for receiving a respective one of the plurality of support members in the respective crown segment between the first side and the second side. Also disclosed is a method for tire building using the aforementioned tire building drum.

A shoulder assembly for mounting on a tire building drum is provided that includes a plurality of sections configured to interlock with another to form a shoulder ring to be mounted on a tire building drum when the tire building drum is in an expanded state, and a plurality of magnetic elements provided about a surface of the shoulder ring that is configured to contact a side of the tire building drum. The magnetic elements correspond to holding magnetic elements in the tire building drum. The shoulder ring is configured to maintain contact with the tire building drum during forming of a tire carcass, and the shoulder ring is configured to maintain its shape and stay with the formed tire carcass when the tire building drum is collapsed.

A shoulder assembly for mounting on a tire building drum is provided that includes a plurality of sections configured to interlock with another to form a shoulder ring to be mounted on a tire building drum when the tire building drum is in an expanded state, and a plurality of magnetic elements provided about a surface of the shoulder ring that is configured to contact a side of the tire building drum. The magnetic elements correspond to holding magnetic elements in the tire building drum. The shoulder ring is configured to maintain contact with the tire building drum during forming of a tire carcass, and the shoulder ring is configured to maintain its shape and stay with the formed tire carcass when the tire building drum is collapsed.

A tire building drum has a crown section with crown segments which are movable from a crown-down position into a crown-up position, wherein the crown segments together form a crown surface facing outwards in the radial direction, a leading edge and a shoulder that forms the transition from the crown surface to the leading edge, wherein the shoulder leaves a gap, wherein the tire building drum further includes a plurality of support members that extend in said gap, wherein each crown segment has a first side and a second side, wherein each crown segment further includes one or more guide channels, wherein each guide channel is arranged for receiving a respective one of the plurality of support members in the respective crown segment between the first side and the second side. Also disclosed is a method for tire building using the aforementioned tire building drum.

A tire building drum has a crown section with crown segments which are movable from a crown-down position into a crown-up position, wherein the crown segments together form a crown surface facing outwards in the radial direction, a leading edge and a shoulder that forms the transition from the crown surface to the leading edge, wherein the shoulder leaves a gap, wherein the tire building drum further includes a plurality of support members that extend in said gap, wherein each crown segment has a first side and a second side, wherein each crown segment further includes one or more guide channels, wherein each guide channel is arranged for receiving a respective one of the plurality of support members in the respective crown segment between the first side and the second side. Also disclosed is a method for tire building using the aforementioned tire building drum.

Disclosed is a tire building drum and a method for building a tire, wherein the tire building drum includes a crown section and a bead-lock section, wherein the bead-lock section defines a bead-lock position, wherein the crown section includes crown segments movable with respect to the base from a crown-down position into a crown-up position in a crown-up direction, wherein the crown segments together form a crown surface, a leading edge and a shoulder, wherein the tire building drum further includes a sleeve that extends around the crown segments in the circumferential direction, wherein the sleeve includes a first circumferential edge that is fixed to the crown segments at a side of the shoulder facing away from the bead-lock section, a second circumferential edge that is located between the shoulder and the bead-lock position, wherein the second circumferential edge is unfixed at least when the crown segments are in the crown-down position.

Disclosed is a tire building drum and a method for building a tire, wherein the tire building drum includes a crown section and a bead-lock section, wherein the bead-lock section defines a bead-lock position, wherein the crown section includes crown segments movable with respect to the base from a crown-down position into a crown-up position in a crown-up direction, wherein the crown segments together form a crown surface, a leading edge and a shoulder, wherein the tire building drum further includes a sleeve that extends around the crown segments in the circumferential direction, wherein the sleeve includes a first circumferential edge that is fixed to the crown segments at a side of the shoulder facing away from the bead-lock section, a second circumferential edge that is located between the shoulder and the bead-lock position, wherein the second circumferential edge is unfixed at least when the crown segments are in the crown-down position.

Disclosed are to a transfer apparatus and a method for transferring plies onto a carcass package on a tire building drum. The transfer apparatus includes a transfer ring with first ring segments and a frame that extends in a circumferential direction about a central axis for holding the first ring segments in first angular positions distributed in the circumferential direction along the frame, wherein the first ring segments are movable relative to the frame in a radial direction from a first radial distance to a second radial distance from the central axis that is smaller than the first radial distance. The transfer apparatus further includes a first rolling device that is positionable in a second angular position interposed between the first angular positions, and a second ring segment that is positionable in the second angular position at the second radial distance from the central axis.

The invention relates to a belt and tread drum (1, 401, 501, 601), an assembly of the belt and tread drum and a pressing device and to a method for manufacturing a belt and tread package (9), wherein the belt and tread drum comprises a first support member (2), wherein the first support member (2) comprises a tread support surface (20) which faces away from the drum axis (x) for supporting the tread layer (92) where said tread layer (92) is wider than the belt layer (91), wherein the first support member (2) is positionable in a raised position outside the circumferential surface (S) in the radial direction, wherein the belt and tread drum (1, 401, 501, 601) further comprises a first retaining element (4, 404) and a second retaining element for retaining the tread layer (92) at the first support member.