Release mechanism for a tire building drum

A rotatable tire building drum machine comprising:

• a shaft housing;
• a pair of axially moveable and radially expandable bead locks for holding and securing a pair of beads of a green or unvulcanized motorcycle tire supported on the shaft housing;
• a center radially expandable and retractable building deck assembly positioned axially between the bead locks and supported on the shaft housing, the building deck assembly having two sets of deck plates, the deck plates having been sized to abut at a fully expanded diameter to form a solid 360° building surface to support a tire carcass at a specified diameter wherein the two sets of deck plates are divided into a first set of even deck plates and a second set of odd deck plates, arranged in a sequence of at least 6 or more circumferentially adjacent abutting deck plates 1, 2, 3, 4, 5, 6 in an expanded state and in a retracted state the first set of even deck plates move radially inward of the second set resulting in a contracted position radially inward of the second set, the first set underlying the second set;
• a main center shaft connected to the bead locks having two opposing ends a first left end having a left screw pitch and a second right end having a right screw pitch, rotation of the main center shaft moves the bead locks axially;
• two pairs of diametrically opposed deck shafts internally mounted in the shaft housing, including a first pair of drive shafts having two first shafts aligned 180° apart for moving the even deck plates, a second pair of drive shafts having two second shafts aligned 180° apart each second shaft being between two first shafts, the second shafts for moving the odd deck plates, the shaft housing being cantilevered at one end mounted to a motor housing and the motor housing including three independent motors, a first motor for rotating the main center shaft, a second motor for rotating the first deck shaft, and a third motor for driving the second drive shaft;
• and
• a continuous hoop of a non-stick and elastic polymer, the hoop further including a plurality of flaps each attached to the hoop at one end and unattached to the hoop at an opposite end.