Abstract: A spindle has belt webbing wound thereon. The spindle is supported for rotation in belt withdrawal and belt retraction directions. A pawl member is movable from a first position allowing rotation of the spindle to a second position blocking rotation of the spindle in belt withdrawal direction. An inertia member is supported for rotation with and relative to the spindle. The pawl member is moved to its second position in response to rotation of the spindle in the belt withdrawal direction relative to the inertia member. Rotation of the inertia member is blocked in response to rotation of the spindle in the belt withdrawal direction a predetermined amount to enable the spindle to rotate in the belt withdrawal direction relative to the inertia member and thereby effect movement of the pawl member to its second position.

Abstract: A seat belt retractor includes a spindle. Seat belt webbing is wound on the spindle. The spindle is supported for rotation in belt withdrawal and belt retraction directions. A mechanism is actuatable to block rotation of the spindle in the belt withdrawal direction. A disk is supported for rotation relative to the spindle to actuate the mechanism in response to rotation of the spindle in the belt withdrawal direction relative to the disk. The disk has a plurality of teeth extending therefrom. A member is manually movable toward and away from the disk. The member has a portion for engaging one of the plurality of teeth on the disk to block rotation of the disk in the belt withdrawal direction thereby enabling rotation of said spindle in the belt withdrawal direction relative to the disk upon rotation of the spindle in the belt withdrawal direction.