| 摘要 |
A bed is provided having a movable frame for supporting a mattress and supported above a relatively fixed base by means of first and second link sets which permit the movable frame to be adjusted relative to the base. The link sets are so arranged that when the movable frame is in its uppermost position, a first locking member coupled to the movable frame can be positioned to immobilize the first link set so that when the bed is lowered the movable frame is tilted into the Trendelenberg position. A second locking member is also coupled to the movable frame for engaging the second link set for tilting the movable frame into the reverse Trendelenberg position. |
