SEAT BELT RETRACTOR.

摘要

The retractor includes a synchronous gear (16) rotating in synchronism with a spindle (6). A lock has a clutch member for restricting the rotation of the spindle in a webbing pull-out direction by the operation of inertia reel in case of emergency. A lever (38) is disposed rotatably on the clutch member of the lock and is capable of meshing with the synchronous gear. A spring member biases the lever in the meshing direction with the synchronous gear. A control cam (42) engages the lever with the synchronous gear when a webbing is pulled out fully and releases the engagement of the lever with the synchronous gear when the webbing is taken up to a certain extent. A transmission decelerates and transmits the rotation of the spindle to the control cam. When the webbing is pulled out fu ly, the state of ELR is switched to the state of ALR and when the webbing is taken up fully, the state of ALR is switched to the state of ELR.