| 摘要 |
Various forms of apparatus for cooling pneumatic tires as they are removed from the press following the mold cycle and are subjected to a postinflation cycle outside the press, are disclosed. The basic apparatus includes means defining a cooling zone in which each tire being cooled may be axially received. The cooling zone is provided with orifice means arranged coextensively with its peripheral boundary to enable cooling air to be directed in jet form against the tire in its shoulder regions simultaneously along the entire circumference thereof, preferably so as to be incident initially directly against the shoulder regions of the tread. By proper choice of the blower means, the sizes, distribution and arrangement of the orifices, and the sizes and pressure drop characteristics of the duct system, the airflow conditions can be controlled to deliver a desired tire to air heat transfer coefficient ranging from about 15 to about 70 B.t.u./hr./sq. ft./ DEG F. over the surface of the tire so as to ensure that, subject to appropriate adjustment of the duration of the jet air cooling relative to the duration of the in-mold heating, the finished tire is characterized by an optimized set of circumferentially substantially uniform thermal, physical and geometrical properties. This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.
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