초록 ▼

The invention is concerned with an apparatus and process for curing tread and track belts. The apparatus comprises a plurality of inner segments which fit together to form an outer generally cylindrical mold face surface of an inner cylinder along with means for retracting said plurality of inner se

The invention is concerned with an apparatus and process for curing tread and track belts. The apparatus comprises a plurality of inner segments which fit together to form an outer generally cylindrical mold face surface of an inner cylinder along with means for retracting said plurality of inner segments towards the axis of said inner cylinder and means for heating said plurality of inner segments. Also part of the apparatus is a plurality of outer segments which fit together to form an inner generally cylindrical mold face surface of an outer cylinder, said outer cylinder being coaxial with said inner cylinder and of generally equal length therewith, along with means for retracting said plurality of outer segments away from the common axis of said cylinders and means for heating said plurality of outer segments. Finally the apparatus includes a pair of rings adapted to seal said inner cylinder to said outer cylinder at the ends thereof, at least one of said sealing rings being removable so that an uncured tread or track belt is positionable between said plurality of inner segments and said plurality of outer segments when said plurality of inner segments is retracted toward said common axis and said plurality of outer segments is retracted away from said common axis. The process is concerned with finish forming and curing an uncured tread or track belt in such an apparatus.

대표청구항 ▼

In an apparatus for curing a tread or track belt, said apparatus having a plurality of inner segments movable between a first position at which the inner segments fit together to form a substantially inner cylindrical mold face surface and a second position at which the inner segments are moved radi

In an apparatus for curing a tread or track belt, said apparatus having a plurality of inner segments movable between a first position at which the inner segments fit together to form a substantially inner cylindrical mold face surface and a second position at which the inner segments are moved radially inwardly toward a longitudinal axis of said cylindrical mold face surface, said plurality of inner segments including a first set of inner segments alternatively placed between the segments of a second set of inner segments, the improvement comprising: means for moving the segments of the first set of inner segments between the first and second positions; means for moving the segments of the second set of inner segments between the first and second position in response to movement of the segments of the first set of inner segments; a plurality of outer segments movable between a first position at which the outer segments fit together to form a second mold face surface and a second position at which the outer segments are moved radially outwardly; means for moving the outer segments between the first and second positions; a seal ring movable between a first position at which said seal ring is in sealing contact with the ends of the inner and outer segments at the first position of the inner and outer segments and a second position at which said seal ring is positioned intermediate the ends of the inner and outer segments at the second position of said inner and outer segments; and means for moving the seal ring between said first and second positions.