| 摘要 |
The invention relates to an elevator comprising
a hoistway (H);
an elevator car (1) vertically movable in the hoistway (H);
at least one rope (3a,3b,3c) connected to the car (1);
a rotatable traction member (6) comprising a circumferential traction surface (4a, 4b, 4c) for each of the at least one rope (3a,3b,3c);
each of the at least one rope (3a,3b,3c) passing around the rotatable traction member (6) and having a front side surface (5a,5b,5c) resting against a circumferential traction surface (4a, 4b, 4c) of the traction member (6), the front side surface (5a,5b,5c) and/or the traction surface (4a, 4b, 4c) of the rotatable traction member (6) being made of material comprising polymer; and
a drive machinery (M) for controlling rotation of the rotatable traction member (6); and
activatable pressing means (11) for pressing the at least one rope (3a,3b,3c) against the circumferential traction surface (4a, 4b, 4c) of the traction member (6) which comprise
a pressing shoe (12) mounted on the back side of and out of contact with the rope section (13a,13b,13c) of each of said at least one rope (3a,3b,3c), which rope section (13a,13b,13c) rests against the rotatable traction member (6), the pressing shoe (12) being movable towards the back side surface (9a, 9b, 9c) of said rope section (13a,13b,13c); and
actuating means (14,15) activatable to move the pressing shoe (12) towards the back side surface (9a, 9b, 9c) of said rope section (13a,13b,13c) such that the pressing shoe (12) moves into contact with and presses the rope section (13a,13b,13c) against the circumferential traction surface (4a, 4b, 4c) of the traction member (6); and
activating means (10,10',10",20,100) for activating the actuating means (14,15) to move the pressing shoe (12) towards the back side surface (9a, 9b, 9c) of said rope section (13a,13b,13c). |
