| 摘要 |
<p>Each retractor described includes a belt-sensitive (355,360) and a retractor-sensitive (414) inertial device. The retractor is locked by engagement of a lockbar with ratchet teeth (325) of a belt spool (320). The lockbar is actuated by rotation of a lockcup (340) which is produced by coupling of the lockcup to the spool. The coupling is by engagement of a pawl member (420) of the retractor-sensitive device, which is mounted on a side arm (412) of the lockcup, with ratchet teeth (331), or by engagement of a latchlock (360) acutated by relative rotation between the flywheel (355) and the spool member with internal ratchet teeth of the lockcup. Latchlock actuation is by a camming arrangement or by co-operation of a pin (390) in a slot (394). The retractor-sensitive inertial device is supported on a seating (428) which is a snap-fit on the arm of the lockcup in two or more different orientations selected according to the intended orientation of the retractor in use. Flexural resilient elements e.g. a rectilinear wire (400) and integral parts (420,426) of a plastics lockcup moulding bias parts of the retractors into their normal positions.</p> |
