| 摘要 |
<p>A chain includes a connecting unit (31) including two chain plates (30), and a link unit (4) having first and second link plates (41, 41') parallel to the chain plates (30) and a link pin (42). The first link plate (41) is formed with a stop block (415) and a retaining hole (40) having an insert hole portion (401) and a retaining hole portion (402). The link pin (42) extends through the chain plates (30) and the retaining hole portion (402). The connecting unit (31) is pivotable about the link pin (42) between a first position, where the link pin (42) is allowed to move entirely from the retaining hole portion (402) into the insert hole portion (401) to thereby allow removal of the link pin (42) from the first link plate (41), and a second position, where the link pin (42) is not allowed to move entirely from the retaining hole portion (402) into the insert hole portion (401) due to contact of an edge of one of the chain plates (30) with the stop block (415).</p> |
