| 摘要 |
A ratcheting pivot mechanism for coupling a head rest portion of a vehicle head restraint assembly to a post portion of a vehicle head restraint assembly includes a first pivot arm, a second pivot arm pivotably connected to the first pivot arm, a movable ratchet member pivotably connected to the second pivot arm, and a spring disposed between the second pivot arm and the movable ratchet member. The first pivot arm has a fixed ratchet member, which the movable ratchet member is configured to selectively engage. The spring is configured to apply an engaging force to the movable ratchet member when the movable ratchet member is in a first position, and configured to apply a disengaging force to the movable ratchet member when the movable ratchet member is in a second position. |
