| 摘要 |
A bed (1) has an extendable platform (3) including a calf section (7) having first (9) and second (11) parts, the first part (9) being longitudinally movable between an unextended position, a first extended position and a second extended position relative to the second part (11). Calf section locking means are provided for releasably locking the calf section (7) in any one of the said positions. |
