| 摘要 |
A chain is a combination of plural links. Each link comprises a first inner chain plate, a second inner chain plate, a first outer chain plate, and a second outer chain plate linked by rollers and pins. Each chain plate includes a straight waist portion disposed between two semi-circular end portions, an inner face formed with an incline extending along an edge thereof, and a blade portion merging with the incline at the straight waist portion. The first outer chain plate includes a transverse dimension greater than that of the second outer chain plate, while the first inner chain plate includes a transverse dimension greater than that of the second inner chain plate.
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