| 摘要 |
<p>PURPOSE:To eliminate a hindrance at the time of using a bedside cabinet, and at the time of using a lighting equipment provided on the wall surface in a room, etc., by constituting the mechanism so that at the time of raising the back, a back part floor board is moved in the head part direction of a bed frame by a supporting member together with other floor board. CONSTITUTION:A floor part supporting frame 2 for supporting a back part floor board 1a so that it can turn, and ascend and descend is supported so as to be freely movable in the longitudinal direction on the foot side of a base part bed frame 3, and a first screw shaft 4a is supported so as to be freely rotatable extending from the foot side of the floor part supporting frame 2 to the head side. A first nut 5a screwed to its first screw shaft 4a is fixed to the base part bed frame 3, a push-up arm 6 is provided on the lower side of the back part floor board 1a, and a second nut 5b is supported so as to be freely rotatable by the push-up arm 6. Also, the other end side of a second screw shaft 4b in which one end side is screwed to the nut 5b is connected through a universal coupling 7 to one end side of the shaft 4a, and a rotation driving means 8 is provided on the other end side of the shaft 4a. As a result, there is no hindrance for using a lighting equipment, etc., of the head part side.</p> |
