| 摘要 |
A saw chain of a chain saw has its side links and center links interconnected by rivets. Prior to being staked, each rivet is in blank form and includes a cylindrical flange and a pair of barrels extending from opposite sides of the flange along a center axis thereof. Each barrel includes an axially inner cylindrical section and a tapered axially outer section. When the rivet is staked, the center section of each barrel fills a cylindrical portion of a hole formed in a respective side link, and the tapered section fills a chamfered portion of the hole to form a rivet head. The staked rivet bears against a wall of the cylindrical portion of the hole with a greater force than that with which the rivet bears against a wall of the tapered portion of the hole.
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