Patent ID: 9016608
Filing Date: 2015-04-28
Classification: A61G,B60R

Abstract:
1. A locking mechanism for a retractor, comprising: a pivot arm coupled to a lock bar, the lock bar being adapted to engage a first ratchet to prevent retractor spool rotation in a first direction; a lever arm pivotably mounted within the retractor, the lever arm including an external lever that extends outwardly from the retractor, a pawl that is adapted to engage a second ratchet to prevent retractor spool rotation in a second direction, and a portion that couples the lever arm to the pivot arm to move the pivot arm when the external lever is actuated; a cam coupled to a shaft of the refractor spool by a mechanism that causes it to rotate in a direction opposite and at a rate slower than a velocity of the retractor spool, the cam having a lobe initially positioned to support the pivot arm and prevent engagement of the lock bar with the first ratchet during an initial rotation of the retractor spool to a first lock point; and a clutch coupled to the shaft to rotate between defined rotational positions, the clutch having a shape that supports the pivot arm and prevents engagement of the lock bar with the first ratchet, and supports the pawl of the lever arm to prevent engagement with the second ratchet while the spool is rotating.