| 摘要 |
PROBLEM TO BE SOLVED: To attain a spring washer which can hold a fastening force enough even for large shrinkage of pillar members and besides can sustain a sufficiently strong tightening force with such low surface pressure that the spring washer does not cut into the pillar members. SOLUTION: The spring washer comprise a spring member having structure such that an inner end portion of a piece of spring installed in a protruding manner to the inside of an interlink is placed at a position biased to one side in the axial direction, and a plane member fitted at the other side of the spring member.
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