(under subclass 43) Device in which the back is pivoted to the rear of a forwardly-pivoted seat section in such fashion that grasping the back and pulling it forward causes the back, the seat, and a section under the seat to become so ordered and arranged as to form a bed bottom.
SEE OR SEARCH THIS CLASS, SUBCLASS:
31+, for an unfolding seat with rising inner section.
59.1+, for devices in which the back section is masked by a pad which must be removed in some way, e.g., grasping and pulling.