| 摘要 |
A two or three section convertible sofa bed is provided for installation in vans, campers or recreational vehicles. The convertible sofa bed is adaptable to various configurations, including motor drive, yet is comparatively easy to manufacture and maintain. It has locking and stop mechanisms which combined with the arrangement of the linkage provide for a stiff, rigid structure in the seating and bedding positions. The versions with motor drive have the additional feature of providing recliner seating with variable positions. The seat frame and back frame are not directly pivotally connected to each other, thus avoiding a gap between the seat and back cushions when in the bed position.
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