| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a floor part lifting mechanism in a bed device for lowering the floor part without depending on a bell crank type lifting mechanism. <P>SOLUTION: In the bed device 1, a support part 4 is stood, adjacent to a main frame 3, on a base part 2 for supporting the floor part. A first guide pulley 5 is mounted on the lower surface side near one end side of the main frame 3 and second and third guide pulleys 6 and 7 are disposed on the other end side of the main frame 3. One end side of a wire member 8 is connected to the upper part of the support part 4, and the other end side of the wire member 8 is connected to the top of the base 2 via the first, second and third guide pulleys 5, 6 and 7 to stretch the wire member 8. The end of the main frame 3 opposite to the support part 4 is supported by a lifting driving means 9 disposed on the base part 2 so that the main frame 3 can be lifted. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
