| 摘要 |
<p>A futon sofa bed frame featuring a quick assembly system and method for attaching the seat-deck (20) to the back-deck (30) that may be converted between seating, lounging, and bed positions while standing at the front of the futon frame and the method of assembling a futon sofa bed that is easier to manipulate and is more durable in operating than conventional futons.</p> |
