| 摘要 |
<p>PROBLEM TO BE SOLVED: To light/lower a bed frame in the vertical direction and to effectively utilize the space of a bed room by a constitution wherein leg members are respectively fixed on two rotating shafts and an interlock mechanism for rotating both rotating shafts mutually in the opposite direction is linked so as to perform opening/closing operation of the leg members. SOLUTION: When an extending and contracting driving device 25 is extended, both leg members 15 and 16 are rotated in the closing direction around rotating shafts 13 and 14 as shafts. In this time, the rotating shafts 13 and 14 are linked and connected by an interlock mechanism 21 with a constitution wherein brackets 22 and 23 projected to each rotating shaft are connected by means of a connecting rod 24. Therefore, a frame 2 is elevated by rotating both rotating shafts by the same angle in the opposite direction and the leg members 15 and 16 are synchronously moved in the closing direction. In addition, as rollers 30 and 31 provided at the apexes of the leg members 15 and 16 are moved on guide rails formed on grounded legs 28 and 29, there exists no possibility of damaging the floor face such as a mat by opening/closing operation of the leg members 15 and 16.</p> |
