Abstract: An unloader for a tire vulcanizer includes a linear motion guide rail fixed vertically to a main frame of a tire vulcanizer; a slider movably engaged with the linear motion guide rail; a movable carriage having the slider so as to elevate along the linear motion guide rail; a revolving suspension member which is attached to the movable carriage and has revolving rods vertically supported by bearings; and a chuck boom which is provided to the revolving rods so as to be turnable in the horizontal direction and supports the chuck mechanism.

Abstract: In a center mechanism of a tire press, which the tire size is changed, the lower limit position of an upper clamp ring is changed to a shaping height corresponding to the size of the exchanged tire only by changing a setting of a controller. Consequently, the work related to the tire size change is facilitated. A bladder is inflated and tightly comes into contact with the inner face of a green tire while lowering the upper periphery of the bladder to the shaping height corresponding to the tire size.

Abstract: A center mechanism for a tire vulcanizer having a first cylinder whose stroke can be detected with a simplified structure achieves reduction in cost and improvement in working efficiency upon maintenance. The center mechanism expands, while the first cylinder 1 moves downwardly, a bladder 5 into close contact with an inner face of a green tire. A downward stop position of the first cylinder 1 is set in advance by a linear sensor 14. The stroke amount of the first cylinder 1 is detected by a stroke bracket 12 having a stroke portion 12a extending downwardly in parallel to the first cylinder 1 from within a stem 8 and provided so as to advance into the stem 8 together with a cylinder rod 1a, and a linear sensor 14 for detecting the stroke amount of the first cylinder 1 from the stroke portion 12a of the stroke bracket 12 remaining outside the stem 8.

Abstract: A post-cure inflator for inflating and cooling a vulcanized tire is disclosed. A lower rim mechanism is easily and certainly fixed, the whole apparatus is miniaturized, and the degree of freedom in designing when the lower rim mechanism is moved is made higher. The lower rim mechanism is lifted so that a locking shaft attached to an upper rim mechanism enters a fitting portion of the lower rim mechanism. After that, the locking shaft is rotated to be engaged with the lower rim mechanism, thereby connecting the lower rim mechanism via the locking shaft to the upper rim mechanism. A tire is inflated and cooled while being held by the upper and lower rim mechanisms. Guide plates are fixed to the upper rim mechanism so as to be along the locking shaft. Insertion grooves are formed in the lower rim mechanism. When the locking shaft enters the fitting portion, the guide plates are inserted into the insertion grooves.

Abstract: A tire press has a feature decoupling the mold closing force torque from the platens 3 and 22 supporting the press mold halves 4 and 11 using a spherical seat located between the platens 3 and 22 and the press member supplying the closing force to provide self-alignment of the mold halves 4 and 11 upon closing of the press.