Patent ID: 7171706
Filing Date: 2007-02-06
Classification: A47C

Abstract:
1. A convertible sofa-bed, comprising: a support and guide structure; a mattress movable relative to the support and guide structure between a bed configuration and a sofa configuration, the mattress having an upper portion and a lower portion, the lower portion extending horizontally and having a first bearing surface, the upper portion coupled to the lower portion and foldable upwards relative to the lower portion of the mattress, the upper portion having a second bearing surface, the mattress including a plurality of support rods to support at least a portion of the mattress on the support and guide structure, the support rods located in tubular seats sewn in a fabric covering of the mattress, the support rods each have an idle guide roller rotatably coupled to the respective support rod; while in the sofa configuration, the upper portion of the mattress forms a backrest wherein the second bearing surface of the upper portion of the mattress is positioned to directly contact and support a back of an occupant when the occupant is in a seated position, and wherein the first bearing surface of the lower portion of the mattress forms a seating surface of the sofa-bed when the sofa-bed is in the sofa configuration.