| 摘要 |
In a conventional bottle conveyor chain, in which sheet metal chain links are joined by a hinge between the links formed by a transverse pin mounted through two outer hinge parts constituted by rolled up plate strips projecting from one link, and a broad middle hinge part made as a rolled up strip projecting from the other link, the hinge pin is narrower than the middle hinge part, whereby the links are mutually transversely pivotal, for horizontal curve driving of the chain. For increasing the pivotability without weakening the chain, the front edge of the middle hinge part is maintained at full width, but the outer end of the rolled up strip is formed with a considerably reduced width.
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