| 摘要 |
ELEVATOR, PREFERABLY AN ELEVATOR WITHOUT MACHINE ROOM. IN THE ELEVATOR, A HOISTING MACHINE ENGAGES A SET OF HOISTING ROPES BY MEANS OF TRACTION SHEAVE. THE SET OF HOISTING ROPES COMPRISES HOISTING ROPES OF SUBSTANTIALLY CIRCULAR CROSS-SECTION, THE HOISTING ROPES SUPPORT A COUNTERWEIGHT AND AN ELEVATOR CAR MOVING ON THEIR RESPECTIVE TRACKS. THE HOISTING ROPE HAS A THICKNESS BELOW 8MM AND/OR THE DIAMETER OF THE TRACTION SHEAVE IS SMALLER THAN 320 MM. THE CONTACT ANGLE BETWEEN THE HOISTING ROPE OR HOISTING ROPES AND THE TRACTION SHEAVE IS LARGER THAN 180º.
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