Abstract: A hinge assembly is mounted on a rail supported above a floor by two legs to support one end of a sofa/bed. A like hinge assembly is mounted the same way at the other end of the sofa/bed. The hinge assemblies include side rails supporting front and rear sofa frame members. Each hinge assembly combines front and rear pivot arms supporting a seat bracket, a backrest bracket and an intermediate hinge plate. A latch arm is pivoted to the seat bracket and received through a loop fastened on the intermediate hinge plate and on which a stop is provided. The latch arm is spring biased against the stop and includes a notch receivable in the stop to latch the arm. A latch dog is provided in the arm and which can be toggled between a position enabling latching of the arm against the stop, and a position enabling release of the arm from the stop.

Abstract: A hinge assembly is mounted on a rail supported above a floor by two legs to support one end of a sofa/bed. A like hinge assembly is mounted the same way at the other end of the sofa/bed. The hinge assemblies include side rails supporting front and rear sofa frame members. Each hinge assembly combines front and rear pivot arms supporting a seat bracket, a backrest bracket and an intermediate hinge plate. A latch arm is pivoted to the seat bracket and received through a loop fastened on the intermediate hinge plate and on which a stop is provided. The latch arm is spring biased against the stop and includes a notch receivable in the stop to latch the arm. A latch dog is provided in the arm and which can be toggled between a position enabling latching of the arm against the stop, and a position enabling release of the arm from the stop.

Abstract: A sofa-bed assembly in a recreational vehicle or van has a seat and a back. There is a storage space under the seat. The back can be moved in a simple roll-over action from an upright position at the rear of the seat to a horizontal, bed-forming position at the front edge of the seat. Two mounting brackets are fixed to the vehicle, one at each side of the seat. The back is connected to mounting brackets by two links on each side of the brackets and back to facilitate this action. The mounting brackets also serve to control the seat which is connected to the brackets by a pair of seat-connecting pivot links.