| 摘要 |
<p>PURPOSE:To smoothly execute elevating/lowering operation without the collision of an edge part in a floor part supporting frame to a wall, etc., or the movement of a member for grounding in the case of elevating/lowering by executing the elevating/lowering operation without changing a relative position in a lateral direction for the member for grounding in contact with a floor surface and the floor part supporting frame. CONSTITUTION:For a drive supporting mechanism M in the elevating/lowering mechanism, for example, a stretchable and drivable supporting beam 10 is linked between a driving arm 8, which is interlocked to an operating arm 7, and a third supporting member 9 constituted in the lower side of a floor part supporting frame 1. The elevating/lowering mechanism is constituted in both sides such as a head side H and a foot side F of the floor part supporting frame 1 or constituted in one side either the head side H or foot side F and a laying stand 11 such as a bed, etc., is constituted. Since a member 5 for grounding is moved in a direction where a turning axial line 05, 06 is closed to the floor part supporting frame 1 or distant from the frame 1 as it is still one longitudinal line l, the relative position in the lateral direction is not changed for the member 5 for grounding and the floor part supporting frame 1. Thus, when the floor part supporting frame 1 is parallelly elevated/ lowered, the member 5 for grounding and floor part supporting frame 1 are not parallelly moved in the lateral direction.</p> |
