| 摘要 |
PURPOSE:To simplify the constitution of an elevator door opening/closing device by providing a fastening member for fastening first and second coupling members adjustably in the longitudinal direction of a belt so as to hold the tension of the belt. CONSTITUTION:When both ends of a toothed belt 12 for wrapping toothed pulleys 10, 11 on both ends of the hanger case 2 of an elevator door opening/ closing device are connected to each other by a belt connector 20, one end of the toothed belt 12 is first pinched by a pair of upper and lower fastening plates 21A, 21B of a first coupling member 21 and both plates 21A, 21B are coupled with each other by plural pairs of bolts and nuts 21C. On the other hand, the other end of the toothed belt 12 is pinched by a pair of upper and lower fastening plates 22A, 22B of a second coupling member 22 and the plates 22A, 22B are coupled with each other by plural pairs of bolts and nuts 22C. Both first and second coupling members 21, 22 are drawn to each other, under such a condition and nuts 23C, 23D of a fastening member 23 are turned by a spanning to fixedly fasten a screw rod 23A to a carrier plate 23B. |
