| 摘要 |
PURPOSE:To enhance the rate of operation of a vulcanizing device and to produce a pneumatic tire having stable quality by vulcanizing a tire up to a predetermined ratio with respect to objective vulcanization quantity on the basis of an Arrhenius equation in the vulcanization device and subsequently subjecting the same to post- vulcanization by a post-cure inflator. CONSTITUTION:The tire vulcanized up to about 50-60% of objective vulcanization quantity on the basis of an Arrhenius equation in a vulcanization device is grasped by the annular member of a feed device 15 and the bead part of the tire is set to each of the chucks 25 of post-cure inflators 20. The chucks 25 are provided to the rotary shafts 24 radially protruding from the outer peripheral surface of a disc bearing part 23 integrally supported on a revolving circular base stand 21 and the tire is rotated by each of the rotary shafts 24 and revolved along with the bearing part 23. Extremely low pressure is applied to the interior of the tire from the air passage provided to each of the rotary shafts 24 to stabilize the shape of the tire. Next, a temp. holding box 25 falls to be heated by the internal heater thereof to vulcanize the tire and subsequently rises. The tire is continuously rotated and revolved and, after the tire is allowed to stand to cool for a proper time, a cooling box 50 falls to forcibly cool the tire. |
