| 摘要 |
A seat belt position adjuster is described which enables a boss portion of a slider for supporting a belt anchor to have a greater height than the height of a conventional boss portion, and which prevents the boss portion from having a difference in inner diameter, even if the boss portion is formed by a burring process. A boss portion 12 integrally formed with a slider 11 by a burring process is configured such that an outer diameter b of a leading end 12d of the boss portion 12 is smaller than an outer diameter a of a base portion 12c of the boss portion 12 (b<a) while an inner diameter d of the leading end 12d of the boss portion 12 is equal to an inner diameter c of the base portion 12c of the boss portion 12. That is, while the outer diameter of the boss portion 12 changes to be reduced from the base portion 12c toward the leading end 12d, the inner diameter of the boss portion 12 is kept constant without changing from the base portion 12c toward the leading end 12d. Accordingly, the boss portion 12 having a greater height e than the height of a conventional boss portion can be formed by the burring process.
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