| 摘要 |
<p>In order to make a small compact mechanism for preventing an end lock which can yet effectively prevent an end lock due to a belt withdrawal sensor, when an eccentric gear (14) rotates according to the withdrawal of a seat belt (4), a pair of stoppers (45, 46) are controlled by a cam groove (49) formed in a casing (10) to move in radial directions of a spool (9) along guide grooves (47, 48) of the eccentric gear (14) of an ELR-ALR switching mechanism (25). When the seat belt (4) is nearly fully wound, the stoppers (45, 46) are positioned within large-diameter circular grooves (49c, 49d) so as to press the inner periphery of a ring portion (12b), thereby preventing the oscillation of the fly wheel (12). When a certain amount of the seat belt (4) is withdrawn from the fully wound state, the stoppers (45, 46) are positioned within small-diameter circular grooves (49a, 49b) so as not to press the inner periphery of the ring portion (12b), thereby allowing the oscillation of the fly wheel (12).</p> |
