JP2007153588A - Moving cable swing preventive device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving cable swing preventive device of an elevator capable of surely suppressing a swing of a moving cable with a simple structure. <P>SOLUTION: This moving cable swing preventive device for the elevator is installed on the moving cable 5, and is composed of a duct 6 extended along a hoistway wall 1a and capable of storing a return side moving cable 5, a guide body 7 having one end movably guided by the duct 6 and having the other end slidingly contacting with an inner diameter surface of a turning-back part 5a of the moving cable 5, and a weight 8 installed in this guide body 7 and applying a load in the vertical direction. When the swing is caused by an earthquake, since the return side moving cable 5 is stored in the duct 6, the swing is suppressed, and since the load is vertically applied to the whole moving cable 5 by the weight 8, a swing of a car 3 side moving cable 5 is also suppressed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a moving cable steadying device for an elevator that suppresses shaking of a moving cable that occurs due to an earthquake or the like.

  Conventionally, as this kind of guide rail, a guide rail attached to the elevator hoistway wall along the moving direction of the car, a holding frame provided so as to be guided and moved by the guide rail, and the holding frame A first roller rotatably held by the first roller, and a second roller held at a predetermined gap with respect to the first roller and rotatably held by the holding frame. There is one in which the lower part of the moving cable is inserted so as to be sandwiched between the second rollers so as to prevent the moving cable from shaking (see, for example, Patent Document 1).

Also, a guide member extending in the vertical direction on the inner wall of the hoistway, a feed roller support member, one end attached to the feed roller support member, and the other end attached to the guide member so as to be slidable in the vertical direction The support arm and the axial direction are parallel to each other, and the feed surface is arranged in an arcuate shape when viewed from the axial direction, and is rotatably attached to the feed roller support member so that the feed surface contacts the moving cable. And a plurality of feed rollers attached to the curved portion (for example, see Patent Document 2).
Japanese Utility Model Publication No. 50-76560 (first page, Fig. 1) JP-A-6-278968 (paragraph numbers 0009 to 0013, FIG. 1)

  However, in the above-described Patent Document 1, although a certain moving cable steadying effect can be obtained, the load applied to the moving cable is not structurally sufficient, and thus it is difficult to reliably suppress the shaking of the moving cable. . Moreover, in the thing shown in patent document 2, in order to apply the load required for steadying to the folding | turning part of a moving cable, although several feed rollers are arrange | positioned, a structure becomes complicated and the burden of a cost side is large. In addition, as the number of rollers increases, the rate at which one of the rollers agitates increases, which may cause an abnormality. In addition, in the case where the inside of the hoistway is visualized, such as an elevator for observation, there is a problem from the viewpoint of design because a device having a relatively large size moves up and down in synchronization with the movement of the car. there were.

  The present invention has been made from the above-described actual state of the prior art, and an object thereof is to provide a moving cable steadying device for an elevator that can reliably suppress the shaking of the moving cable with a simple structure. .

  In order to achieve the above object, the invention according to claim 1 of the present invention provides an elevator moving cable that is mounted on a moving cable that has a U-shaped folded portion between a car and a hoistway wall. In the steady rest device, a duct that extends along the hoistway wall and can accommodate the moving cable on the return side, one end of which is movably guided to the duct, and the other end that is the moving cable. It is characterized by comprising a guide body that is in sliding contact with the inner diameter surface of the folded portion and a weight that is attached to the guide body and applies a load in the vertical direction.

  In the invention according to claim 1 of the present invention configured as described above, the guide body whose one end is guided by the duct and whose other end is slidably engaged with the moving cable has the other end having an inner diameter of the folded portion of the moving cable. By sliding on the surface, the moving cable is inserted between one end and the other end. If this causes a shake due to an earthquake or the like, the moving cable on the return side, that is, the counter-cage car side is housed in the duct, so that the vibration is suppressed and a weight is applied to the entire moving cable by the weight in the vertical direction. Therefore, the movement of the moving cable on the car side is also suppressed. In this way, the movement of the moving cable can be reliably suppressed with a relatively simple structure such as a duct, a guide body, and a weight, that is, a structure with a small number of members.

  The invention according to claim 2 of the present invention is characterized in that the guide body and the weight are housed in the duct. The invention according to claim 2 of the present invention configured as described above is such that the guide body and the weight are accommodated in the duct so that the elevator can be visualized even if the inside of the hoistway is visualized such as an elevator for observation. By making the movement of the guide body and the weight synchronized with the raising and lowering of the body invisible from the outside, the design can be improved.

  In the present invention, the device has a relatively simple structure such as a duct, a guide body, and a weight, that is, a structure with a small number of members, so that it can be made inexpensive, and the abnormality occurrence rate is reduced and the reliability is improved. Can be achieved. In addition, it is possible to reliably suppress the movement of the moving cable, and even when a moving force is applied to the moving cable due to an earthquake or the like, the moving cable can be prevented from being twisted or swung to prevent the moving cable from being broken. Collisions with other hoistway devices can be prevented. Furthermore, by placing the guide body and the weight in the duct, the movement of the guide body and the weight synchronized with the raising and lowering of the car from the outside can be observed even if the inside of the hoistway is visualized such as an elevator for observation. By making it invisible, the design can be improved.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an elevator moving cable steady rest device according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a side view showing a first embodiment of a moving cable steadying device for an elevator according to the present invention, FIG. 2 is an enlarged view of a main part of the moving cable steadying device shown in FIG. 1, and FIG. It is a principal part expanded sectional view of a stopper.

  As shown in FIG. 1, the elevator ascends and descends in the hoistway 1, a car 3 that can be opposed to a landing 2 formed in the building, a cable attaching part 4 attached to the hoistway wall 1 a, and the car 1. The movable cable 5 is provided with a U-shaped folded portion 5a between the bottom portion of the cable and the cable mounting portion 4.

  As shown in FIGS. 2 and 3, the moving cable steadying device of the present embodiment extends along the hoistway wall 1 a and can accommodate the moving cable 5 on the return side, that is, on the cable mounting portion 4 side. The duct 6, one end of which is guided to the duct 6 so as to be movable, the other end of which is in sliding contact with the inner diameter surface of the folded portion 5 a of the moving cable 5, and the guide body 7 is attached to the guide body 7 and applies a load in the vertical direction. It consists of a hanging weight 8. The duct 6 includes a rail portion 6 a that guides the guide body 7.

  Further, the guide body 7 includes a first roller 7a that slides and moves on the rail portion 6a of the duct 6, a second roller 7b that slides and moves on the inner diameter surface of the folded portion 5a of the moving cable 5, and a first roller. 7a and a second roller 7b. The rod 7c is connected to the second roller 7b. Furthermore, the weight 8 is pivotally supported coaxially with the first roller 7 a and moves up and down in synchronization with the guide body 7.

  In the first embodiment, the guide body 7 whose one end is guided by the duct 6 and whose other end is slidably engaged with the moving cable 5 has the other end having an inner diameter surface of the folded portion 5 a of the moving cable 5. The movable cable 5 is inserted between one end and the other end. Thereby, for example, when the car 3 is lowered from the position indicated by the solid line in FIG. 1 to the position indicated by the dotted line, the moving cable 5 is displaced while moving the folded portion 5a downward by its own weight, and the displacement of the moving cable 5 is also reduced. The guide body 7 that is locked to the moving cable 5 in synchronization is also lowered. At this time, the movement of the first roller 7a of the guide body 7 in the lateral direction and the depth direction is restricted by slidingly contacting the rail portion 6a of the duct 6, and the second roller 7b is placed on the inner diameter surface of the folded portion 5a. It rotates while sliding. Then, when shaking occurs due to an earthquake or the like, the moving cable 5 on the return side, that is, the cable mounting portion 4 side is housed in the duct 6, so that the shaking is suppressed and the weight 8 vertically extends to the entire moving cable 5. Since the load is applied in the direction, the movement of the moving cable on the car 3 side is also suppressed.

  According to the first embodiment, since the apparatus has a relatively simple structure of the duct 6, the guide body 7 and the weight 8, that is, a structure with a small number of members, the apparatus can be made inexpensive and an abnormality occurrence rate can be obtained. And reliability can be improved. In addition, the movement of the moving cable 5 can be reliably suppressed, so that even when a moving force is applied to the moving cable 5 due to an earthquake or the like, the moving cable 5 can be prevented from being twisted or swung. It is possible to prevent wire breakage and collision with other equipment in the hoistway 1.

  FIG. 4 is an enlarged view of a main part showing a second embodiment of the moving cable steadying device for an elevator according to the present invention, and FIG. 5 is an enlarged sectional view of a main part of the moving cable steadying device in FIG. In addition, the same code | symbol is attached | subjected to the thing equivalent to what was shown in FIGS. 1-3 mentioned above.

  As shown in FIGS. 4 and 5, the moving cable steady rest device of the second embodiment has a structure in which a guide 17 body and a weight 18 are housed in a duct 16.

  That is, the duct 16 includes a first rail portion 16 a and a second rail portion 16 b that guide the guide body 17.

  The guide body 17 includes a first roller 17a that slides and moves on the first rail portion 16a of the duct 16, a second roller 17b that slides and moves on the inner diameter surface of the folded portion 5a of the moving cable 5, and a second roller 17b. The third roller 17d, which is pivotally supported coaxially with the second roller 17b and slidably moves on the second rail portion 16b of the duct 16, and the first roller 17a, the second roller 17b, and the third roller 17d are connected. It has a rod 17c to be used.

  Further, the weight 18 is pivotally supported coaxially with the first roller 17 a and moves up and down in synchronization with the guide body 17.

  According to the second embodiment, the same effects as those of the first embodiment described above can be obtained, and the guide body 17 and the weight 18 are accommodated in the duct 16 so as to be lifted and lowered like an elevator for observation. Even if the inside of the road is visualized, the design can be improved by making the movement of the guide body 17 and the weight 18 synchronized with the raising and lowering of the car 3 invisible from the outside.

  FIG. 6 is an enlarged sectional view of an essential part showing a third embodiment of the moving cable steadying device for an elevator according to the present invention. In addition, the same code | symbol is attached | subjected to the thing equivalent to what was shown in FIGS. 1-3 mentioned above.

  As shown in FIG. 6, the moving cable steady rest device of the third embodiment is guided so that one end is movably guided to the duct 26 and the other end is in sliding contact with the inner diameter surface of the folded portion 5 a of the moving cable 5. 27 has a guide shoe structure. That is, the duct 26 includes a rail portion 26 a that guides the guide body 27.

  The guide body 27 includes a shoe 27a that slides and moves on the rail portion 26a of the duct 26, a roller 27b that slides and moves on the inner diameter surface of the folded portion 5a of the moving cable 5, and a rod that connects the shoe 27a and the roller 27b. 27c.

  According to the third embodiment, the same effects as those of the first embodiment described above can be obtained.

  In addition, in the moving cable steady rest apparatus shown in the first to third embodiments described above, the car operation signal indicating the up / down state of the car 3 and the guide body operation indicating the up / down state of the guide bodies 7, 17, 27. Anomaly detection means is provided to detect anomalies based on the consistency with the signal, and it is possible to recover the anomalies early by detecting anomalies such as stiffness occurring in the guide bodies 7, 17 and 27 and disconnection of the moving cable 5. It can also be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a first embodiment of a moving cable steadying device for an elevator according to the present invention. It is a principal part enlarged view of the moving cable steady rest apparatus of FIG. It is a principal part expanded sectional view of the moving cable steady rest apparatus of FIG. It is a principal part enlarged view which shows 2nd Embodiment of the moving cable steadying apparatus of the elevator of this invention. It is a principal part expanded sectional view of the moving cable steady rest apparatus of FIG. It is a principal part expanded sectional view which shows 3rd Embodiment of the moving cable steadying apparatus of the elevator of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 1a Hoistway wall 3 Passenger car 4 Cable mounting part 5 Moving cable 5a Turn-back part 6, 16, 26 Duct 7, 17, 27 Guide body 8 Weight

Claims (2)

In the steadying device of the moving cable for elevators attached to the moving cable that has a U-shaped folded portion between the car and the hoistway wall,
A duct extending along the hoistway wall and capable of accommodating the moving cable on the return side, and one end guided to the duct so as to be movable, and the other end to the inner diameter surface of the folded portion of the moving cable An elevator moving cable steady rest device comprising: a guide body that is in sliding contact; and a weight that is attached to the guide body and applies a load in a vertical direction. 2. The moving cable steadying device for an elevator according to claim 1, wherein the guide body and the weight are housed in the duct.

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