Abstract: A foldable headrest assembly for a seat includes a pair of posts engaged with an upper portion of the seat and a frame rotatably supported by the posts. A latch is moveably supported by the frame and includes a release pin. A release mechanism is coupled to the latch for moving the latch from a locked position preventing rotation of the frame relative to the posts to an unlocked position allowing rotation of the frame relative to the posts. The assembly further includes an inertia lock rotatably coupled to the frame. The inertia lock defines a stop slot corresponding to the release pin. In response to deceleration of the frame, e.g., resulting from a collision of the vehicle, the inertia lock rotates to a triggered position whereby the stop slot receives the release pin and limits movement of the release pin thereby maintaining the latch in the locked position.

Abstract: The foldable headrest assembly includes a first and second support and a first and second paddle. A first and second plate extending from the supports and supported by the paddles rotate in unison about a first axis (A1) from an upright to a forwardly folded position. A lock lever rotatably supported by the first plate rotates about a second axis (A2) between a locked position and an unlocked position. A first biasing member (FBM) is disposed between the plates and a second biasing member (SBM) is supported by the first plate engaging the lock lever. The FBM rotatably biases the supports about the A1 toward the forwardly folded position and the SBM rotatably biases the lock lever about the A2 toward the locked position in a common rotational direction as the rotation of the supports about the A1. A release mechanism for rotating the lock lever is also disclosed.

Abstract: A headrest assembly that is rotatable to various positions includes a support defining a horizontal axis. A shell is rotatably mounted to the support. Notches are disposed on the support, and each notch is associated with one of the positions. A lever is mounted to the shell and has a locking portion rotatable about the pivot axis and partially disposed in one of the notches to prevent movement of the shell. An actuator is mounted to the shell and rotates the locking portion of the lever about a pivot axis in a direction transverse to the horizontal axis. The actuator moves the locking portion out of one of the notches to allow the shell to rotate about the horizontal axis. Furthermore, the actuator moves the locking portion into one of the notches to prevent the shell from rotating about the horizontal axis.