| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to bring up-and-down a frame safely and easily and to set easily its bearing bar to a horizontal use position, in a jump-up accommodation type of helping frame. SOLUTION: A bracket 1 is fixed to a wall. The bracket 1 supports the bearing bar 2 in a free up-and-down movement. A leg block 9 is fixed to the middle bottom surface of the bearing bar 2. A leg column 3 is connected to the leg block 9 to support the bearing bar 2, under which a link frame is arranged and connected both to the bracket 1 and the leg column 3 so as to configure a horizontal link frame with the bearing bar 2 and the link frame 5. A gas damper 4 is arranged between the leg block 9 and the bracket 1 to offset the frame weight. |
