Sofa which converts to bed

摘要

The seat bolster (5) is mounted on a trolley (4) which slides in guides (11) to the bed position. The guides (11) for an additional seat bolster (10) descend into a position to the rear of the chair trolley. This bolster is in turn joined to a strip of material (13) joined at the far end to the chair back or back wall (3,2). Another bolster which may be used to complete the couch setting adjoins the additional bolster and works with guides which reach up and behind the chair back. The guides are designed as swivel arms or slides and those for the completion bolster are sliding ones.