JP2016079024A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator device enabling a guard wire to be stretched without generating bending of a bracket as much as possible.SOLUTION: An elevator device includes: a hoistway; a car provided in the hoistway; a balance weight; a main rope connected to the car and the balance weight; a hoisting machine having a sheave around which the main rope is wound; and a guide rail extending in the vertical direction of the hoistway to guide lifting/lowering of the car. The elevator device further includes: a bracket that is a longitudinal member installed so that one end thereof is fixed to the guide rail and the other end thereof faces a hoistway wall of the hoistway; an orthogonal member that is fixed to the other end of the bracket to be orthogonal to the bracket and that has a guard wire support portion; and a guard wire that is fixed to the end on the guide rail side of the bracket and to the hoistway wall and supported by the guard wire support portion.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an elevator apparatus, and more particularly to an elevator apparatus capable of preventing a long object in a hoistway from being caught.

  In the elevator hoistway, a plurality of brackets are attached to a guide rail that guides the lifting body, and devices such as a position detection switch, an inductor plate, and a control cable are installed in this bracket. . In addition, the elevator has a main rope for suspending the passenger car and the counterweight, cables (tail cord, etc.) provided in the passenger car, and governor ropes (governor ropes) provided in the governor. When there are scales and an earthquake or the like occurs, these long objects may shake and get caught on the brackets, which may damage the equipment and the long objects. Conventionally, as a countermeasure, a protective line is provided between the bracket and the hoistway wall in order to prevent a long object from being caught.

  Further, as an apparatus for preventing a long object from being caught in an elevator, for example, in Patent Document 1, it is connected to a first end connected to a hoistway wall of an elevator and a device mounting arm protruding into the hoistway from the hoistway wall. Cable hooking of an elevator that has a second end that is closed and prevents the movable cable of the elevator from being caught between the hoistway wall and the equipment mounting arm with respect to the movable cable of the elevator. And a distance between the first end and the second end between the first end and the second end. An elevator cable catching prevention device is disclosed, characterized in that is made variable.

JP 2011-26021 A

  However, in the prior art as described above, when there are protrusions such as doorway devices from the car in the extension direction of the bracket (mounting arm), the protective wire cannot be stretched in the extension direction of the bracket. In order to avoid this, it will be slanted (bypass). In this case, the bracket is bent due to the tension of the protective wire or the like, and there are the following problems.

  The inductor plate, which is one of the devices attached to the bracket, detects the position of the car by detecting the inductor plate by a position detector attached to the car. However, in vertical projection when the hoistway is viewed from above, the relative position between the position detector and the inductor plate at the time of sensing the inductor plate is determined, and the position detector does not sense the inductor plate when the position is shifted. Also, a plurality of inductor plates are installed in the hoistway, and all inductor plates must be installed at the same relative position as the position detector attached to the car. Therefore, when the deflection of the bracket is caused by the tension of the protective wire and the position of the inductor plate attached to this bracket is shifted, the same deflection must be generated for all the brackets, but this work is very difficult. is there.

  The present invention has been made from the state of the prior art described above, and an object of the present invention is to provide an elevator apparatus that can stretch a protective wire without generating as much deflection as possible.

In order to achieve the above object, the present invention provides a hoistway, a car provided in the hoistway, a counterweight, a main rope connected to the car and the counterweight, and the main rope wound. In an elevator apparatus having a hoisting machine having a hooked sheave, and a guide rail extending in the vertical direction of the hoistway and guiding the raising and lowering of the car,
A bracket which is a longitudinal member and has one end fixed to the guide rail and the other end facing the hoistway wall of the hoistway, and a bracket fixed to the other end of the bracket and orthogonal to the bracket, An elevator apparatus comprising: an orthogonal member having a support part; and an end part of the bracket on the guide rail side and a protection line fixed to the hoistway wall and supported by the protection line support part. To do.

  ADVANTAGE OF THE INVENTION According to this invention, the elevator apparatus which can extend | stretch a protection wire, without generating a bending | flexion as much as possible to a bracket can be provided.

It is a figure which shows typically the elevator apparatus which concerns on this invention. It is a top view which shows typically the elevator apparatus which concerns on this invention. It is a principal part enlarged top view of FIG. It is a top view which shows the conventional protective wire attachment structure typically. It is a top view which shows typically the conventional protective wire attachment structure in case there exists protrusions, such as an entrance / exit device from a passenger car. It is a top view which shows typically the protection wire attachment structure which concerns on this invention when there are protrusions, such as an entrance / exit device, in a passenger car.

  Hereinafter, embodiments of the present invention will be described with reference to the examples shown in the drawings.

  FIG. 1 is a diagram schematically showing an elevator apparatus according to the present invention, and FIG. 2 is a top view schematically showing the elevator apparatus according to the present invention. As shown in FIG.1 and FIG.2, the elevator apparatus 100 which concerns on this invention is the hoistway 2 formed enclosed by the hoistway wall 1 (The front side wall 1a, the side wall 1b, the rear side wall 1c (FIG. 2)). Inside, a car 3 for carrying passengers, a counterweight 4 connected to the car 3 via a main rope 31, and a hoisting machine 32 having a sheave (not shown) around which the main rope 31 is wound. Have Further, a pair of left and right car guide rails (hereinafter also referred to as guide rails) installed vertically in the hoistway 2 via rail support members (not shown) provided on the hoistway wall 1 of the hoistway 2. 5 and a pair of left and right weight guide rails 6 installed in the vertical direction in the hoistway 2 via rail support members (not shown) provided on the hoistway wall 1. The car 3 has a car door 33, and the car door 33 faces the front side wall 1a.

  The car 3 is guided by a car guide rail 5 through a guide shoe (not shown) and moves up and down in the vertical direction, and the counterweight 4 is weighted through a guide shoe (not shown). It is guided by the guide rail 6 and moves up and down in the vertical direction.

  Brackets 7a and 7b are supported by the car guide rail 5 so as to be orthogonal to the guide rail 5, and the brackets 7a and 7b are installed in tower equipment (for example, inductors) provided in the hoistway 2 A plate 8, a governor rope steady rest 9, a control cable support 10, a wire mesh 11, a control box 12, a position detection switch 13, and the like (FIG. 2)) are attached. In the present embodiment, the bracket 7 a is a front bracket extended in the direction of the car door 33 of the car 3, and the bracket 7 b is a rear bracket extended in the direction opposite to the car door 33 of the car 3.

  In this embodiment, the main rope 31, the tail cord 17 provided on the car 3, the cable (not shown), and the governor rope (not shown) are provided in the hoistway 2 as long objects. It has been.

  Further, protective wires 14a and 14b are provided between the hoistway wall 1a and the bracket 7a and between the hoistway wall 1c and the bracket 7b, respectively, in order to prevent a long object from being caught on the brackets 7a and 7b. Yes.

  FIG. 3 is an enlarged top view of a main part of the elevator apparatus in FIG. One end of the front bracket 7 a is fixed to the guide rail 5, and the other end (end on the front side wall 1 a side) has an orthogonal member 15. The orthogonal member 15 has a protective wire support portion 18 and is a member extended toward the lateral side wall 1b so as to be orthogonal to the front bracket 7a. One end of the protective wire 14a is fixed to the end of the front bracket 17a (the end on the side fixed to the guide rail 5), and is routed along the extending direction of the front bracket 7a toward the front side wall 1a. , Supported by the protective wire support 18 of the orthogonal member 15 (locked to the orthogonal member 15) and fixed to the front side wall 1a.

  By stretching the protective wire 14a as described above, it is possible to prevent a long object from being caught on the bracket 7a. That is, it is possible to prevent a long object from entering the bracket 7a from between the bracket 7a and the hoistway wall 1a. Moreover, according to the said aspect, the protective wire 14a can be stretched, generating as much deflection as possible in the bracket 7a.

  Here, a conventional aspect will be described. FIG. 4 is a top view schematically showing a conventional protective wire mounting structure. As shown in FIG. 4, one end of the protective wire 14a is fixed to an end portion (front side wall 1a side) of the bracket 7a, and the other end is fixed to the front side wall 1a. That is, the protective wire 14a is provided directly from the bracket 7a to the front side wall 1a.

  FIG. 5 is a top view schematically showing a conventional protective wire mounting structure when the car 3 has protrusions 16 such as doorway devices. In the vicinity of the car door of the car 3, there is a protrusion 16 such as an entrance / exit device. In this case, the protective wire 14a is stretched so as to avoid the protrusion 16. There is no problem when the protective line 14a can be stretched at an angle θ between the bracket 7a and the protective line 14a close to 0 °. However, as shown in FIG. 5, when the projection 16 is present, the protective wire 14a cannot be stretched at an angle close to 0 °. When θ increases, the component force F1 of the tension T1 of the protective wire 14a causes the bracket Deflection occurs in 7a.

  FIG. 6 is a top view schematically showing the protective wire mounting structure according to the present invention when the car 3 has protrusions such as the doorway device 16. In the present invention, by providing the orthogonal member 15 at the end of the bracket 7a, the angle θ formed by the bracket 7a and the protective wire 14a can be made an angle close to 0 °. That is, the bracket 7a and the protective wire 14a between the protective wire support portion 18 and the hoistway wall 1a are substantially parallel. As a result, the deflection of the bracket 7a can be reduced, and a decrease in the detection accuracy of the inductor plate can be prevented. By adjusting the length of the orthogonal member 15, the angle θ formed by the bracket 7 a and the protection line 14 a between the protection line support portion 18 and the hoistway wall 1 a can be appropriately adjusted. Even in this case, the orthogonal member 15 is bent by the component force F2 of the tension T2 of the protective wire 14a and the bracket 17a is slightly bent. However, the deflection of the bracket 17a by the component force F2 can be ignored as compared with F1. Because it is so small, there is no problem.

  In the embodiment described above, the orthogonal member 15 is provided on the front bracket 17a in consideration of the fact that the car 3 often has a protrusion on the car door 33 side. However, there is no particular limitation on the position where the orthogonal member 15 is provided. Needless to say, the present invention can be applied to a bracket at any position when it is necessary to extend a protection line from the bracket to the hoistway wall while avoiding protrusions in the hoistway.

  As described above, according to the present invention, it has been shown that an elevator apparatus that can stretch a protective wire without generating a deflection as much as possible in the bracket can be provided.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  1, 1a, 1b, 1c ... hoistway wall, 2 ... hoistway, 3 ... car, 4 ... counterweight, 5 ... guide rail for car, 6 ... guide rail for weight, 7a, 7b ... bracket, 8 ... in Ductor plate, 9 ... governor rope steady rest, 10 ... control cable support, 11 ... wire mesh, 12 ... control box, 13 ... position detection switch 14a, 14b, 14c ... protective wire, 15 ... orthogonal member, 17 ... tail cord , 18 ... protective wire support, 31 ... main rope, 32 ... hoisting machine, 33 ... car door, 100 ... elevator device.

Claims (4)

A hoistway, a car provided in the hoistway, a counterweight, a main rope connected to the car and the counterweight, and a hoisting machine having a sheave around which the main rope is wound, In an elevator apparatus having a guide rail extending in a vertical direction of the hoistway and guiding the raising and lowering of the car,
A bracket which is a longitudinal member and has one end fixed to the guide rail and the other end facing the hoistway wall of the hoistway, and a bracket fixed to the other end of the bracket and orthogonal to the bracket, An elevator apparatus comprising: an orthogonal member having a support portion; and a protection wire fixed to the end portion of the bracket on the guide rail side and the hoistway wall and supported by the protection wire support portion.   The elevator apparatus according to claim 1, wherein the protection line at a portion connecting the protection line support portion of the orthogonal member and the hoistway wall is parallel to the bracket. The hoistway wall has a front side wall facing a car door provided in the car;
The elevator apparatus according to claim 1 or 2, wherein one end of the protective wire is fixed to an end portion of the bracket on the guide rail side, and the other end is fixed to the front side wall. The car has a protrusion protruding in the opening / closing direction of the car door,
The elevator apparatus according to claim 3, wherein the protective wire is routed so as to avoid the protrusion.

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