| 摘要 |
The invention relates to a traction sheave elevator. The elevator car (2) has been arranged to move along guide track (A) in an elevator shaft (1). The counterweight (3) has been arranged to move along guide track (B) in the elevator shaft (1). Both ends of rope (4) are attached to a fixed overhead structure (5). The elevator car and the counterweight are supported by the rope. The rope (4) is passed via a number of rope pulleys (6 - 14), one of which is the traction sheave while the others are diverting pulleys. Rope pulleys are connected to the counterweight (3), to the fixed overhead structure (5) in the upper part of the elevator shaft and to the elevator car (2). The elevator car is provided with a first pair of car rope pulleys (6, 7) placed at a distance from each other. The traction motor (15) has been arranged to drive one of the rope pulleys, which is the traction sheave. Connected to the elevator car is a second pair of car rope pulleys (9, 10), in which the car rope pulleys (9 and 10) are at a distance from each other. An auxiliary rope pulley (11) is connected to the fixed overhead head structure (5). The rope (4) is passed from a car rope pulley (7) of the first pair of car rope pulleys (6, 7) via the auxiliary rope pulley (11) mounted on the fixed overhead structure to a car rope pulley (10) of the second pair of car rope pulleys (9, 10).
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