JP2009280349A - Elevator control cable vibration damping device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an elevator control cable vibration damping device capable of damping vibrations of a control cable such as a tail cord by a simple structure. <P>SOLUTION: The elevator control cable vibration damping device includes a first control cable; a first steel core provided at the first control cable in a longitudinal direction of the first control cable, and made from a magnetic element; a second control cable disposed in parallel with the first control cable; and a second control cable side magnet disposed at a position opposite to the first steel core on the second control cable, and attracting the first steel core. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator control cable vibration damping device.

In a conventional elevator control cable vibration control device, a tail cord whose one end is fixed to the car and the other end is fixed to the mounting box of the hoistway, and an upper rotating wheel provided below the mounting box, A lower rotating wheel around which the curved portion at the lower end of the tail cord is wound around the outer periphery of the lower surface, a cradle that supports the lower rotating wheel on one side and that forms a guide portion on the other side, and is vertically provided in the hoistway, A guide strip that guides the vertical movement of the cradle by fitting with the guide portion, and one end is locked to the cradle, an intermediate portion is wound around the upper rotating wheel, and a counterweight is suspended at the other end. A wire rope that can be lowered is known (see, for example, the first embodiment of Patent Document 1).
In addition, a magnet plate installed vertically in the hoistway, a magnetic plate placed on the surface side of the magnet plate, one end supported by a car that moves up and down the hoistway, and a tail cord attached to the magnetic plate at the other end A device having a pressing tool for pressing is also known (see, for example, the second embodiment of Patent Document 1).

JP-A-11-011824

However, in the conventional elevator control cable damping device shown in the first embodiment of Patent Document 1, the guide strip is stretched over the vertical direction in the hoistway and then slid on the guide strip. Freely engage the lower rotating wheel, wrap a tail cord around the lower rotating wheel, and provide an upper rotating wheel at the upper part of the hoistway, and suspend the lower rotating wheel and the counterweight on the upper rotating wheel in a hanger shape Therefore, there is a problem that the configuration becomes complicated.
And in the conventional elevator control cable damping device shown by 2nd Embodiment of patent document 1, a magnet plate is provided over the up-down direction of a hoistway wall surface, and the raising / lowering route of this magnet plate and a cage | basket | car In addition, it is necessary to provide a pressing member on the car after further providing a magnetic plate between them, so that it is similar to the conventional elevator control cable vibration control device shown in the first embodiment of Patent Document 1 described above. The problem that the configuration becomes complicated and the point that whether the engagement between the tail cord, the magnetic plate and the magnetic plate can be smoothly released when the car rises are not taken into consideration. There is.
Moreover, in any case, the purpose is to suppress the tail cord from swinging with respect to the hoistway. When a plurality of control cables are arranged in parallel, these control cables vibrate separately to interfere with each other. There is a problem that it cannot be prevented in advance.

The present invention has been made to solve the above-described problems, and a first object is to provide an elevator control cable damping device capable of damping a control cable such as a tail cord with a simple configuration. To get.
The second object is to obtain an elevator control cable damping device that can smoothly disengage the tail cord and the damping device when the car is raised.
A third object is to provide an elevator control cable damping device that can prevent the control cables from interfering with each other when they are arranged in parallel when the control cables are arranged in parallel. Is what you get.

  In the elevator control cable damping device according to the present invention, the first control cable and the first control cable are provided over the longitudinal direction of the first control cable, and are made of a magnetic material. A steel core, a second control cable disposed in parallel with the first control cable, and a second control cable disposed at a position facing the first steel core of the second control cable. And a second control cable side magnet that attracts one steel core.

The present invention provides an elevator control cable vibration control device, wherein a first steel core made of a magnetic material is provided on the first control cable and the first control cable in the longitudinal direction of the first control cable. And a second control cable disposed in parallel with the first control cable, and a second control cable disposed at a position facing the first steel core of the second control cable. With the configuration including the second control cable side magnet that attracts the steel core, there is an effect that the control cable such as the tail cord can be damped with a simple configuration.
In addition, when a plurality of control cables are arranged in parallel, it is possible to prevent the control cables from interfering with each other by vibrating separately.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
1 and 2 relate to Embodiment 1 of the present invention. FIG. 1 is a cross-sectional view of a control cable, and FIG. 2 is a cross-sectional view showing a state in which the control cables are engaged with each other.
In the figure, reference numeral 1 denotes a first control cable provided in a hoistway of an elevator, which is configured as follows.
That is, for reinforcing and supporting a plurality of first wire cores 2 made of conductive wires for passing electric signals and electric power, etc., and particularly long control cables used in high range elevators installed in high-rise buildings and the like. A first steel core A3a and a first steel core B3b made of a wire rope are arranged in parallel in a flat plate shape, and the outside thereof is covered with a first coating 5. These steel cores are made of a magnetic material.
Here, the first steel core A3a and the first steel core B3b are arranged at positions that are line-symmetric with respect to the center of the first control cable 1 cross section.
Then, one of the first steel core A3a and the first steel core B3b (here, the first steel core A3a) on one side of the flat first control cable 1 is used. A first control cable side magnet 4a (hereinafter referred to as a first magnet A4a) is embedded in the first coating 5 at a predetermined interval along the longitudinal direction.

The second control cable 6 having the same configuration as that of the first control cable 1 configured as described above can be engaged with each other as follows.
That is, the surface on the side where the first magnet A4a is embedded in the flat first control cable 1 and the second control cable side magnet 9 (hereinafter referred to as the second control cable 6) which is also flat. The second magnet 9 is arranged so that the surface on which the second magnet 9 is embedded is opposed to each other.
At this time, focusing on the positional relationship between the steel cores of the respective control cables, since the two steel cores are arranged symmetrically with respect to the center of the flat control cable cross section, the first control is performed. The first steel core A3a of the cable 1 and the second steel core B8b of the second control cable 6 face each other, and the first steel core B3b and the second steel core B3b of the first control cable 1 are opposed to each other. The second steel core A8a of the control cable 6 is opposed to each other.
Therefore, the first magnet A4a arranged along the longitudinal direction of the first steel core A3a of the first control cable 1 is connected to the second steel core B8b of the second control cable 6. The second magnet 9 facing and disposed along the longitudinal direction of the second steel core A8a of the second control cable 6 is connected to the first steel core B3b of the first control cable 1. Opposite.

By arranging the first control cable 1 and the second control cable 6 in this way, the first magnet A4a of the first control cable 1 is connected to the second control cable 6. The second steel core A8a is attracted, and the second magnet 9 of the second control cable 6 attracts the first steel core A3a of the first control cable 1.
The first control cable 1 and the second control cable 6 are engaged with each other so as to be restrained by an attractive force acting between these magnets and the steel core.
At this time, the magnet provided in each control cable can move in the longitudinal direction of the counterpart control cable steel core, but can move in the direction orthogonal to the longitudinal direction of the steel core. Can not.

  In the elevator control cable damping device configured as described above, when two control cables are arranged side by side, the magnetic material is embedded in the cover of one control cable and the cover of the other control cable. By embedding a magnet in a position facing the steel core made of wire rope, an attractive force acts between the magnet and the steel core, so that they can move relative to each other in the longitudinal direction of the control cable. While the relative movement in the longitudinal direction between the control cables accompanying the rise and fall of the cable is allowed, the relative movement in the direction perpendicular to the longitudinal direction between the control cables is suppressed, so that the control cables vibrate separately. It is possible to prevent interference with each other.

  While the relative movement in the longitudinal direction between the control cables is allowed, the relative movement in the direction perpendicular to the longitudinal direction between the control cables is suppressed. This is particularly advantageous when applied to a tail cord having one end connected to the lower portion of the car and the other end connected to the inner wall of the hoistway, and a middle portion depending on the hoistway to form a curved portion. There is an effect.

In addition, about a magnet, sufficient cable restraining force can be anticipated by using magnets with strong magnetic force, such as a rare earth magnet.
Moreover, although the above was the description about the case where two control cables were arranged in parallel, the number of the control cables arranged in parallel is not restricted to two. When three or more control cables are arranged side by side, a separately embedded magnet may be used at a position that is point-symmetric with respect to the center of the cable cross section of the already provided magnet.

Embodiment 2. FIG.
FIG. 3 shows a second embodiment of the present invention and is a cross-sectional view of a control cable.
In Embodiment 2 described here, in the configuration of Embodiment 1 described above, the magnet is not embedded in the cable sheath, but a band in which the magnet is embedded is attached to the outside of the cable sheath. A magnet is arranged at a predetermined position.
That is, a band 11 having a first magnet A4a embedded therein is attached to the outer periphery of the first cover 5 of the first control cable 1, and at this time, the flat first control cable 1 is provided. The first side of the first steel core A3a and the first steel core B3b (here, the first steel core A3a) in the longitudinal direction of the first steel core A3a and the first steel core A3a at a predetermined interval. A plurality of the bands 11 are mounted such that the magnet A4a is arranged.
The other configuration is the same as that of the first embodiment, and the second control cable 6 having the same configuration as the first control cable 1 thus configured can be engaged with each other. This is the same as in the first embodiment.

  In the elevator control cable damping device configured as described above, even if the control cable of the existing elevator in which the magnet is not embedded in the cable sheath, by performing a modification to attach a band incorporating the magnet The same effects as those of the first embodiment can be obtained.

Embodiment 3 FIG.
4 and 5 relate to Embodiment 3 of the present invention. FIG. 4 is a sectional view of a control cable, and FIG. 5 is a sectional view of a hoistway.
In the first embodiment and the second embodiment described above, the control cables are engaged with each other by magnetic force to prevent the control cables from interfering with each other due to vibrations separately. However, in the third embodiment described here, the control cable and the hoistway wall are engaged with each other by a magnetic force, thereby damping the control cable.
As in the first embodiment, the first control cable 1 includes a plurality of first wire cores 2 made of conductive wires through which electric signals and electric power are passed, and a wire rope for reinforcing and supporting the control cable. 1 steel core A3a and 1st steel core B3b are arranged in parallel in the shape of a plate, the outside is covered with the 1st covering 5, The 1st steel core A3a and the 1st steel The core B3b is disposed at a position that is line-symmetric with respect to the center of the cross section of the first control cable 1.
And the 1st magnet A4a is embed | buried in the said 1st coating | coated 5 with the predetermined space | interval along the longitudinal direction of the said 1st steel core A3a of the one side surface in the said flat 1st control cable 1. FIG. In addition, the first magnet B4b is embedded in the first coating 5 at a predetermined interval along the longitudinal direction of the first steel core B3b.

In the figure, reference numeral 12 denotes an elevator hoistway, and a passenger car 13 is suspended in the hoistway by a main rope 14 so as to be raised and lowered.
Reference numeral 15 denotes a tail cord composed of the first control cable 1 having the above-described configuration, and one end thereof is connected to a connection box (not shown) provided on the upper portion of the car 13.
The middle portion of the tail cord 15 is locked by a fixing tool (not shown) provided at the lower portion of the car 13, and the tail cord 15 is suspended from the fixing tool to form a curved portion and rises. The end is connected to a connection box 16 provided on the inner wall of the hoistway 12. At this time, the surface of the flat first control cable 1 (the tail cord 15) where the first magnet A4a and the first magnet B4b are embedded faces the inner wall of the hoistway 12. It is arranged in the direction.
Further, the inner wall of the hoistway 12 at a position facing the first magnet A4a and the first magnet B4b of the tail cord 15 suspended from the connection box 16 along the inner wall of the hoistway 12 is, for example, iron. A magnetic body 17 made of or the like is embedded.

  In such a configuration, the first magnet A4a and the first magnet B4b of the tail cord 15 hanging from the junction box 16 along the inner wall of the hoistway 12 and those of the inner wall of the hoistway 12 are arranged. The tail body 15 is restrained with respect to the hoistway 12 by attracting the magnetic body 17 provided at a position facing the magnet by a magnetic force.

In the elevator control cable damping device configured as described above, the inner wall of the hoistway at a position facing the magnet embedded in the sheath of the control cable (tail cord) suspended along the inner wall of the hoistway By burying the body, the magnet and the magnetic body are attracted by the magnetic force and the tail cord is restrained with respect to the hoistway, so that the control cable (tail cord) can be damped with a simple configuration.
In addition, since the magnets are arranged at predetermined intervals along the longitudinal direction, not over the entire length in the longitudinal direction of the control cable, it is possible to control the vibration of the control cable with a smaller amount of magnets and magnetic materials. is there.

Embodiment 4 FIG.
FIG. 6 relates to Embodiment 4 of the present invention, and is an enlarged cross-sectional view of a main part of a control cable and a hoistway.
In the fourth embodiment described here, the magnetic body provided on the inner wall of the hoistway and disposed at a position facing the magnet of the tail cord in the third embodiment described above is an electromagnet capable of switching polarity, and the car By switching the polarity of the electromagnet in accordance with the vertical direction, the tail cord can be smoothly attracted and separated from the hoistway.
That is, instead of the magnetic body 17, the lifting / lowering of the tail cord 15 that hangs down from the connection box 16 along the inner wall of the hoistway 12 at a position facing the first magnet A4a and the first magnet B4b. An electromagnet 18 is embedded in the inner wall of the path 12.
The electromagnet 18 can switch the magnetic polarity on the side facing the tail cord 15 by reversing the energization direction, and the energization direction for the electromagnet 18 controls the overall operation of the elevator (not shown). It is controlled by electromagnet control means provided in the control panel.
Other configurations are the same as those in the third embodiment.

In such a configuration, when the car 13 is operated to descend, the tail cord 15 is in an operating state in which the tail cord 15 is suspended from the top along the inner wall of the hoistway 12. The first magnet A4a and the first magnet B4b of the cord 15 are magnetically attracted to each other by the electromagnet 18, that is, facing the inner wall of the hoistway 12 of the first magnet A4a and the first magnet B4b. The energizing direction of the electromagnet 18 is controlled so that the magnetic pole on the side facing the tail cord 15 of the electromagnet 18 becomes the same magnetic pole.
On the other hand, when the car 13 is lifted, the tail cord 15 is in an operation state in which the tail cord 15 is sequentially separated from the inner wall of the hoistway 12 from the bottom. The first magnet A4a and the first magnet B4b of the tail cord 15 and the electromagnet 18 repel each other in order from the electromagnet 18 located on the side, that is, the first magnet A4a and the The energization direction of the electromagnet 18 is controlled such that the magnetic pole on the side facing the inner wall of the hoistway 12 of the first magnet B4b and the magnetic pole on the side facing the tail cord 15 of the electromagnet 18 are different magnetic poles. To do.

  In the elevator control cable damping device configured as described above, an electromagnet that is provided on the inner wall of the hoistway in Embodiment 3 and that can switch the polarity instead of the magnetic body disposed at a position facing the magnet of the tail cord. By switching the polarity of the electromagnet according to the direction of raising and lowering the car, the same effect as in the third embodiment can be obtained, and the tail cord can be smoothly attracted and separated from the hoistway. Can be done.

In the first to fourth embodiments described above, the control cable is restrained by the magnetic force, so that the restraining member is compared with the case where the control cable is restrained directly by restraining the control cable, for example. Since the cable does not directly contact the control cable, the cable damage caused by the contact between the restraining member and the control cable does not occur. Therefore, the durability of the control cable is improved and it can be used for a long time. it can.
Further, since the configuration is simple, there are advantageous effects such as reducing the number of work and the environmental load in the production process of the control cable.

It is sectional drawing of the control cable in Embodiment 1 of this invention. It is sectional drawing which shows the state which mutually engaged control cables in Embodiment 1 of this invention. It is sectional drawing of the control cable in Embodiment 2 of this invention. It is sectional drawing of the control cable in Embodiment 3 of this invention. It is sectional drawing of the hoistway in Embodiment 3 of this invention. It is a principal part expanded sectional view of the control cable and hoistway in Embodiment 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st control cable 2 1st wire core 3a 1st steel core A
3b First steel core B
4a First magnet A
4b First magnet B
5 1st coating 6 2nd control cable 7 2nd wire core 8a 2nd steel core A
8b Second steel core B
9 Second magnet 10 Second covering 11 Band 12 Hoistway 13 Car 14 Main rope 15 Tail cord 16 Junction box 17 Magnetic body 18 Electromagnet

Claims (5)

A first control cable;
A first steel core made of a magnetic material provided in the first control cable over the longitudinal direction of the first control cable;
A second control cable arranged in parallel with the first control cable;
A second control cable-side magnet that is provided at a position facing the first steel core of the second control cable, and that attracts the first steel core. Elevator control cable damping device. The second control cable is provided over the longitudinal direction of the second control cable, and includes a second steel core made of a magnetic material,
The first control cable includes a first control cable-side magnet that is provided at a position facing the second steel core and that attracts the second steel core. The elevator control cable damping device according to claim 1.   3. The elevator control cable control according to claim 1, wherein the second control cable side magnet is provided in a band attached to an outer periphery of the second control cable. Shaker. One end is connected to the lower part of the elevator car that can be raised and lowered in the elevator hoistway, the other end is connected to the inner wall of the hoistway, and the middle is suspended in the hoistway to form a curved portion Control cable
Magnets arranged on the control cable at predetermined intervals along the longitudinal direction of the control cable;
An elevator control cable vibration control device comprising: a magnetic body provided on the inner wall of the hoistway at a position facing the magnet of the control cable hanging along the hoistway inner wall of the elevator. One end is connected to the lower part of the elevator car that can be raised and lowered in the elevator hoistway, the other end is connected to the inner wall of the hoistway, and the middle is suspended in the hoistway to form a curved portion Control cable
A magnet disposed on the control cable along the longitudinal direction of the control cable; and
A polarity-switchable electromagnet provided on the inner wall of the hoistway at a position facing the magnet of the control cable hanging along the inner wall of the hoistway;
An elevator control cable vibration control device, wherein the magnetic pole property of the electromagnet is switched in accordance with the moving direction of the car.

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