| 摘要 |
PURPOSE: To provide an improved seat belt retractor of a vehicle with a tension reducing mechanism for making a passenger with a seat belt more comfortable. CONSTITUTION: This seat belt retractor 10 stores belt webbing 16 to be used as a restraint for a vehicle passenger. The retractor 10 includes a rotatable webbing storage spool 14 and two springs 50, 52 for biasing rotation of the spool 14. A rotatable ratchet wheel 54 is connected between the springs 50, 52 to permit the spring force from one spring 50 to be blocked from acting on the spool 14 when the ratchet wheel 54 is prevented from rotating. A movable pawl selectively engages the ratchet wheel 54 to prevent rotation of the ratchet wheel 54 in a belt retraction direction (A). The pawl is both pivotable and movable transversely relative to the pawl axis. |
