| 摘要 |
The present invention relates to a passenger seat, an assembled chair-bed dual-purpose seating unit, and a multi-purpose seating unit. A chair-bed dual-purpose seat comprises a support (3), a seat (2), a back support (1), and a back support frame. The seat (2) is provided on and supported by the support (3); the back support (1) is provided on the support (3) via the back support frame; the lower portion of the back support frame is hinged to the support base (3); the back support (1) is hinged to the upper portion of the back support frame; the back support (1) is able to rotate relative to the back support frame and able to revolve relative to the support (3) along with the back support frame; a angle-adjusting device is provided between the back support frame and the support (3); a back support locking and unlocking device is provided between the back support (1) and the back support frame. The back support frame comprises at lease one main connecting rod (4), the lower portion of the main connecting rod (4) is hinged to the support (3); the upper portion of the main connecting rod (4) is hinged to the back support (1). By assembling a chair-bed dual purpose seat with another same seat, the assembled chair-bed dual-purpose seating unit enables improved comfort and utilization rate. |
