Elevator apparatus

Abstract

Provided is an elevator apparatus capable of reducing the offset load brought by the tail cable to the elevator car without adding a special device. The elevator installation has a lift passage (1), a pair of guide rails (5) provided in the lift passage (1), and an elevator car ( 7), the elevator car lower frame (13) arranged at the lower part of the elevator car (7), one end is connected with the suspension part (15) installed on the elevator car lower frame (13), and the other end is connected with the A tail cable (10) connected to the middle part of the lift passage, wherein the elevator car side end of the tail cable is suspended near the front and rear suspension center of the elevator car, and the tail cable is suspended at the same time It is inclined so that a straight line connecting the end portion of the tail cable on the hoistway side and the end portion on the elevator car side forms an angle with a straight line connecting the pair of the guide rails of the elevator car.

Description

technical field [0001] The invention relates to an elevator equipment in which a tail cable is suspended at the lower part of an elevator car. Background technique [0002] A suspension structure of a tail cable in a general elevator apparatus will be described with reference to FIGS. 5 to 7 . FIG. 5 is a sectional view of the lift passage for explaining the general suspension structure of the elevator tail cable in the prior art, FIG. 6 is a schematic diagram of the suspension structure at the bottom of the elevator car of FIG. 5 , and FIG. 7 is the elevator tail cable of FIG. 5 . Top view of the suspended structure. [0003] As shown in FIG. 5 , the elevator car 7 suspended by the main rope 6 and having guide devices 8 at the upper and lower parts is guided by the guide rails 5 provided in the elevator hoistway 1 and travels vertically in the hoistway 1 . In a high-travel elevator, auxiliary ropes 12 are suspended from the bottom of the elevator car 7 and on the counterw...

AI Technical Summary

Problems solved by technology

[0013] The increase of the offset load generated on the elevator car will not only lead to the increase of vibration and noise when the elevator car is running, which will lead to the deterioration of the riding environment, but will also make the installation required to suspend the tail cable at the bottom of the elevator car Increased volume of components and fixing bolts resulting in increased mass

[0014] In the above-mentioned patent documents 1 and 2, a driving device, a power supply, a control device, etc. for moving the position of the tail cable or the counterweight are required, and this will increase the cost and mass

[0015] Furthermore, in said Patent Document 3, the cost increases due to the use of a special tail cable

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