| 摘要 |
A vulcanization mold ( 2 ) includes several segments ( 8 a, 8 b; 10 a, 10 b; 12 a, 12 b; 14 a, 14 b) which define two end profiles ( 8, 10 ) and two inner profile shells ( 12, 14 ) having concave surfaces. With synchronous movement sequences, which take place via linear controls from both ends, the segments ( 8 a, 8 b; 10 a, 10 b; 12 a, 12 b; 14 a, 14 b) are moved together under simultaneous shaping pressure. The outer profile shells ( 8, 10 ) pass through twice the distance as the inner profile shells ( 12, 14 ). The forming of the work blank ( 20 ) is completed via the shaping pressure when the mold ( 2 ) has reached the closed position. Preferably the upper profile half shells ( 8 a, 10 a, 12 a, 14 a) and the lower profile segments ( 8 b, 10 b, 12 b, 14 b) are operatively connected to each other via toothed racks ( 40 a, 46 a, 48 a, 54 a; 40 b, 46 b, 48 b, 54 b) and gear wheels ( 42 a, 44 a, 50 a , 52 a ; 42 b , 44 b , 50 b , 52 b) including additional sets of teeth ( 42 a ', 50 a '; 42 b ', 50 b').
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