Convertible sofa-bed unit

A convertible sofa-bed unit comprising an elongated, horizontal seat section having a supporting frame for a seat, a back section being substantially the same length as said seat section and positioned vertically upwardly from the rear of said seat section and being movable from said position to a horizontal position along the forward edge of said seat section, an operating mechanism at each end of said sections interconnecting said sections, each mechanism including a first arm having a member in a generally horizontal position pivotally connected to the end of said seat section toward the forward edge thereof and a member in a generally vertical position rigidly connected at one end to the rear end of said first member and pivotally connected at the other end to the lower portion of the respective end of said back section, a second arm connected at one end to the end of said seat section rearwardly from the connection between the seat section and said first arm and at the other end to the back section above the connection between said back section and said first arm, said arms pivoting forwardly with said back section to a position at which said arms are in a generally horizontal position, and a support means for said first arm connected to the frame of said seat section near the forward edge thereof for supporting said back section in a horizontal position along the forward edge of said seat section, with said first arm in contact with said support means and with said pivotal connection of said first arm and said back section being disposed forwardly of the pivotal connection of said second arm and said back section.