| 摘要 |
A seat belt retractor having a webbing guide (22) which slides along guide holes (2p and 2q) in side walls (2a and 2b) in accordance with the roll diameter of a webbing (3) taken up on a reel shaft (4), thereby allowing the webbing (3) to be wound up and unwound smoothly and also protected. Since guide portions (22d and 22e) abut on the upper end surfaces of the two side walls (2a and 2b) at all times, the webbing guide (22) will not rotate to tilt when the webbing (3) is wound up and unwound. Accordingly, the webbing guide (22) can slide smoothly along the guide holes (2p and 2q), and the webbing (3) can be wound up and unwound even more smoothly.
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