| 摘要 |
This novel mould (1) forms a band of rubber. Its two dies (2, 3) each have surfaces (4, 5) delimiting an internal volume of the closed mould, equivalent to the volume of the rubber. Each has a partition (6, 7) projecting from the moulding surface. This forms a groove in the rubber. The partition has lateral partition walls (61, 63, 71, 73) and end wall sections (62, 72) adjoining them. A novel feature of this mould is the continuity of opposing partitions (6, 7) when the mould is closed. Such partitions form a grooved pattern traversing the band of rubber. When closed together, the walls include orifices which are filled with rubber during moulding. |
