| 摘要 |
A vehicle safety apparatus includes a safety belt retractor having a reel which is urged to rotate in a belt retraction direction. A comfort assembly is operable between an engaged condition blocking rotation of the reel in the belt retraction direction and a disengaged condition. The comfort assembly includes a manually actuatable push button which initiates operation of the comfort assembly from the disengaged condition to the engaged condition. The comfort assembly also includes a blocking member which blocks movement of a pawl into engagement with a ratchet wheel until the push button has been actuated. The comfort assembly further includes a cam which also blocks movement of the pawl into engagement with the ratchet wheel until the reel has been rotated in a belt retraction direction through at least a major portion of a revolution of the reel. The comfort assembly accommodates limited movement of an occupant in a vehicle. However, if the movement of the occupant of the vehicle is effective to withdraw more than a predetermined length of belt from the reel, the comfort assembly is disengaged and cannot be reengaged until the push button is again actuated.
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