Patent ID: 8864184

Claim:
A through load hatch for a backrest of a vehicle seat, the through load hatch comprising: a pivotable component including an elongated recess; and a lock having a detent hook with a portion disposed in the recess to engage the pivotable component such that the detent hook can rotate about a first rotational axis relative to the pivotable component from a locked position into an unlocked position, the portion being configured to slide in the recess in the pivotable component such that the first rotational axis moves relative to the pivotable component; wherein the recess in the pivotable component is configured to guide the lock to control movement of the first rotational axis relative to the pivotable component; wherein, when the detent hook is in the unlocked position, the pivotable component can be folded about a second rotational axis in an opening direction from a substantially vertical resting position and a substantially horizontal loading position; wherein, when the detent hook is in the locked position, the pivotable component cannot be folded about the second rotational axis in the opening direction from the substantially vertical resting position into the substantially horizontal loading position; wherein, when the detent hook is in the locked position, the pivotable component is configured to be displaced in relation to the first rotational axis from an operating position into a crash position by a force acting in the opening direction of the pivotable component to cause the detent hook and the pivotable component to cooperate to secure the detent hook in the locked position and thereby secure the pivotable component in the substantially vertical resting position, and upon release of the force in the opening direction the detent hook is rotatable to the unlocked position to allow rotation of the pivotable component to the substantially horizontal loading position; further comprising a locking part, and wherein when the detent hook is in the locked position the detent hook cooperates with the locking part to prevent folding of the pivotable component from the resting position until the detent hook is rotated to the unlocked position about the first rotational axis and about the locking part; and wherein when the detent hook is in the locked position and the pivotable component is in the resting position, the force acting on the pivotable component in the opening direction of the pivotable component is transmitted from the pivotable component to the locking part through the detent hook.