| 摘要 |
A link is made by bending a metal plate, and comprises a plurality of annular portions (13, 14, 15) and connecting portions (12) between the annular portions. An annular connecting link (3) has a gap through which the connecting portion passes and engaged with the connecting portion. A connecting member (4) having a base (41), a connecting arm (43), and an end portion is provided to be inserted between the link and the connecting link so as to connect the connecting link to the link with the connecting arm. A stopping means (17,42) is provided for holding and stopping the connecting member within the link. An opening is provided for disclosing an outer surface of the end portion of the connecting member from one of the annular portions at an end thereof, so as to allow a tool (5) to push the connecting member.
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