JP2001139239A - Elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator capable of ensuring stable riding comfortableness by compensating changes in weight balance in the longitudinal and lateral directions of a car due to weight of a compensation rope and a tail chord which is changed by ascent and descent positions of the car. SOLUTION: In the elevator in which a compensation rope 18 compensating weight of a main rope 17 and a tail chord 19 transmitting a control signal between a car 10 and a control panel are suspended from the car 10, a balance compensation device 22 compensation dynamic balance of the car 10 by generating the moment maintaining the dynamic balance of the car 10 which is changed by eccentric load due to weight of the compensation rope 18 and the tail chord 19 into a balance condition is provided in the car.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator, and more particularly to an elevator capable of correcting a front-rear and left-right balance of a car of an elevator so as to obtain a stable riding comfort.

[0002]

2. Description of the Related Art FIG. 13 shows the structure of a conventional elevator. The car 1 includes a car frame 2 and a car room 3. One end of a main rope 4 hung on a drive sheave 5 of the hoist is fixed to the car frame 2, and the other end of the main rope 4 is fixed to a counterweight 6. One end of a compensating rope 7 for compensating the weight of the main rope 4 is fixed to the car frame 2. The compensating rope 7 is hung on a compensating sheave 8 and the other end is fixed to a counterweight 6. Is being worn.

[0003] One end of a tail cord 9 for transmitting a control signal from a control panel provided in a machine room to an operation panel in the car room 3 is fixed to the car frame 2. Is connected to a landing operation panel and a control panel via a relay box fixed to an intermediate portion of a hoistway (not shown). Elevator car 1 suspended on main rope 4
Is driven by a hoist and moved up and down while being guided by a guide rail 10 via a guide device 11 attached to the car frame 2.

[0004]

In a conventional elevator, ropes such as a compensating rope 7 and a tail cord 9 are suspended from the car 1 as described above.
These become a considerable weight in the case of a high-rise building, and the weight of these ropes varies depending on the height of the car 1. Therefore, the compensation rope 7 and the tail cord 9
Are arranged at appropriate positions in consideration of the weight balance in the cab 1. However, in the case of an individual concrete elevator, for example, when there is a restriction on the layout of the hoistway such as an observation elevator in which one direction of the car room 3 is covered with glass, as shown in FIG.
In some cases, the tail cord 9 must be arranged at a position closer to the front side of the car 1. Such a compensating rope 7
With the arrangement of the tail cord 9, the weight balance before and after the car 1 changes during elevating and lowering, and the car 1 tilts, deteriorating the riding comfort. In addition, depending on the layout of the hoistway, the mounting of the compensating ropes 7 and the tail cords 9 may deteriorate the left-right balance.

On the other hand, there is no restriction on the layout of the hoistway,
Even in the car 1 in which the compensating rope 7 and the tail cord 9 can be arranged with a certain balance, if the ascending / descending stroke is extremely high, the change in the balance in the front-rear and left-right directions due to the weight of the compensating rope 7 and the tail cord 9 will be large. This causes a problem that the ride comfort is deteriorated.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art and correct a change in the weight balance between the front, rear, left and right of the car due to the weight of a compensating rope or a tail cord which changes depending on the position of the car. It is an object of the present invention to provide an elevator capable of securing a stable ride comfort.

[0007]

In order to achieve the above object, according to the present invention, a control signal is transmitted between a compensating rope for compensating the weight of a main rope, a car and a control panel. In an elevator in which a transmitted tail cord is suspended from a car, a moment for maintaining a dynamic balance of the car, which changes due to an unbalanced load due to the weight of the compensating rope and the tail cord, is maintained, and A car is provided with a balance correcting device for correcting the dynamic balance of the car.

According to the first aspect of the present invention, even if the eccentric load due to the compensating rope and the tail cord increases as the car moves up and down, the dynamic balance of the car is maintained by the moment for maintaining the dynamic balance of the car. Is corrected, the dynamic balance is maintained, and the balance in the front, rear, left, and right directions is maintained, and a stable riding comfort can be secured.

According to a second aspect of the present invention, in the first aspect of the present invention, the balance correction device comprises a gyroscope in which a rotating body rotating at a high speed is supported on a frame which can be tilted via axes orthogonal to each other. The frame is tilted at an angle that generates a moment for maintaining a balanced state of the dynamic balance of the car. According to the second aspect of the invention, when the frame is tilted, the rotating body rotating at a high speed does not change its rotation axis direction, so that the dynamic balance of the car is maintained by the gyro effect. A gyro moment for correcting the dynamic balance can be generated, and the dynamic balance of the car can be maintained.

According to a third aspect of the present invention, in the first aspect of the present invention, the balance correcting device comprises: a movable weight movable to an arbitrary position on a horizontal plane; A moving means for moving is provided, and the moving weight is moved to a position where a moment for maintaining a balanced state of the dynamic balance of the car is generated.

According to the third aspect of the present invention, when the offset load due to the compensating rope and the tail cord increases as the car moves up and down, the movable weight is moved to a position where a moment for maintaining the dynamic balance of the car is generated. By moving and correcting the dynamic balance of the car, it is possible to maintain the balance in the front-rear and left-right directions without deviation.

According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the moment required for the balance correcting device to correct the dynamic balance of the car is set in advance for each of the elevator positions of the car. It operates so as to generate the corrected moment according to the elevation position.

According to a fifth aspect of the present invention, the balance correcting device includes balance detecting means for quantitatively detecting a change in the dynamic balance of the car, and the amount of change in the dynamic balance of the car is set in advance. In the case of exceeding the allowable range, a moment for correcting the dynamic balance is generated. According to the fifth aspect of the present invention, the dynamic balance of the car caused by the unbalanced load generated by the situation where the passenger gets in the car room is not limited to the loss of the dynamic balance caused by the unbalanced load of the compensation rope and the tail cord. In the case of collapse, the balance can be operated to maintain the dynamic balance.

According to a sixth aspect of the present invention, the balance detecting means includes:
As described in the above, having a displacement sensor that is disposed in each of a plurality of directions facing the roller rolling surface of the guide rail that guides the elevation of the car, and detects the distance from the roller rolling surface of the guide rail, The amount of change in the dynamic balance of the car is detected based on the change in the distance of the guide rail from the roller rolling surface.

Further, as the balance detecting means, a swing amount of a guide lever for supporting a guide roller which rolls on a roller rolling surface of a guide rail for guiding the elevator of the car may be used. And a change amount in the dynamic balance of the car is detected based on a change in the swing amount of the guide lever. The balance detecting means may use an inclinometer for detecting the inclination of the floor of the car with respect to the horizontal plane.

According to a ninth aspect of the present invention, there is provided an elevator wherein a compensating rope for compensating for the weight of the main rope and a tail cord for transmitting a control signal between the car and the control panel are suspended from the car. A rotatable mounting member to which one end of the compensating rope or the tail cord is mounted is provided on the car, and a fulcrum of the center of rotation of the mounting member is disposed near the center of gravity of the car, depending on the elevation position of the car. A support means for supporting the mounting member so as to rotate in accordance with a change in weight of the compensation rope or the tail cord is provided.

According to the ninth aspect of the present invention, as the car rises, the weight of the compensating rope or the tail cord increases, so that the mounting member rotates in a direction in which the supporting shaft is lowered to the fulcrum, and the compensating rope or the tail. Since the suspension position of the cord is brought closer to the center of gravity of the car, the dynamic balance of the car is corrected by moving the suspension position to the center of gravity.

According to a tenth aspect of the present invention, the support means comprises an elastic member having one end connected to the car frame of the car and the other end connected to the mounting member.
As described in the above, in order to prevent the vibration accompanying the swing of the mounting member from being transmitted to the car, the damping is performed in parallel with the elastic member between the elastic member, the car frame of the car, and the mounting member. It is preferable to interpose a vessel.

The invention described in claim 12 is the invention in claim 10
Alternatively, in the invention according to the eleventh aspect, the support means further includes a stopper for limiting an upper limit of a rotation angle of the mounting member.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the elevator according to the present invention will be described below with reference to the accompanying drawings. First Embodiment FIG. 1 is a diagram showing an elevator car according to a first embodiment of the present invention. The car 10 is a car frame 11
The car frame 12 is framed by a four-sided set of an upper beam 13, a lower beam 14, and an upright frame 15. The car room 11 is fixed to the lower beam 14 via a floor receiving frame 16. One end of a main rope 17 for hanging the car 10 is fixed to the upper beam 13 of the car frame 12. The other end of the main rope 17 is connected to a counterweight (not shown). One end of a compensating rope 18 for compensating the weight of the main rope 17 is fixed to the lower beam 14 of the car frame 11, and the compensating rope 18 is hung on a compensating sheave (not shown) and the other end is It is fixed to the counterweight. One end of a tail cord 19 for transmitting a control signal from a control panel provided in the machine room to an operation panel in the car room 12 is further fixed to the floor receiving frame 16 of the car frame 11. The other end of the cord 19 is connected to a landing operation panel or a control panel via a relay box fixed to an intermediate portion of a hoistway (not shown). In FIG. 1, the mounting positions of the compensating rope 18 and the tail cord 19 are located closer to the front side of the car 10 due to the restrictions on the layout of the hoistway.
The car 10 hung on the main rope 4 is driven by the hoist so as to move up and down while being guided by the guide rails 21 via the guide devices 20 mounted above and below the upright frame 15 of the car frame 11. Has become.

In such a car 10, the compensating rope 18 and the tail cord 19 are arranged so as to apply an eccentric load to the car 10.
The point of application of the eccentric load and the magnitude of the eccentric load also change depending on the position of elevation 0, thereby changing the center of gravity, and the weight balance of the entire car 10 is lost. For this reason, the floor receiving frame 16 of the car frame 11
A balance correction device 22 using a gyroscope for generating a moment for maintaining the dynamic balance of the car 10 in an equilibrium state is provided.

FIG. 2 is a cross-sectional view showing the configuration of the balance correction device 20, and FIG. 3 is a cross-sectional view taken along the line III-III in FIG. On the lower surface of the floor receiving frame 16 constituting the car frame 11,
A mounting base 23 for mounting the balance correction device 22 is fixed, and the mounting base 23 is mounted on the floor receiving frame 16.
A first frame 25 is supported via a first shaft 24 on a plane parallel to the first frame 25 so as to be tiltable in the front-rear direction. Inside the first frame 25, a second frame 2 is provided by a second axis 26 orthogonal to the first axis 24 on a horizontal plane.
7 is supported so as to be tiltable in the left-right direction. Further, the first shaft 24 and the second shaft 2 are provided inside the second frame 27.
Rotating body 2 rotating at high speed via a rotating shaft 29 perpendicular to 6
The rotating body 28 can be rotated at a high speed on a horizontal plane by the principle of a gyroscope while keeping the direction of the rotating shaft 29 unchanged. Reference numeral 30 denotes a first tilt drive unit that rotates the first shaft 24 to tilt the first frame 25 in the front-rear direction by an arbitrary angle, and 31 rotates the second shaft 26 to move the second frame 27 to an arbitrary A second tilt drive unit that tilts in the left-right direction by an angle is shown.

In the elevator balance correcting device 20 according to this embodiment, the first frame 25 is used to maintain the dynamic balance of the car 10 that changes for each elevating position.
In addition, the optimal inclination angle of the second frame 27 is set in advance according to the elevating position, and the first frame 25 and the second frame 27 are respectively inclined by the preset angle in accordance with the elevating position of the car 10. I do. First frame 2
5. Even if the second frame 27 is tilted, the rotating body 28 rotating at a high speed does not change its direction of the rotating shaft 29, so the gyroscopic effect is used to maintain the dynamic balance of the car. Generates a gyro moment that corrects the balance. Therefore, the car 10 maintains the balance in the front-rear and left-right directions without losing the dynamic balance,
It is possible to secure a stable riding comfort.

Although FIG. 1 shows an example in which the compensating rope 18 and the tail cord 19 are suspended from the front side of the car 10, the balance correcting device 22 uses the first frame 25 and the second frame 25 as described above. Since the frame 27 can be inclined at an arbitrary angle in the front-rear and left-right directions, it is possible to cope with the case where the compensating rope 18 and the tail cord 19 are dropped on any position in the front, rear, left and right of the car 10.

Second Embodiment Next, FIG. 4 is a view showing an elevator car according to a second embodiment of the present invention. 4 differs from the first embodiment shown in FIG. 1 in that a balance correction device using a gyroscope instead of a balance correction device using a movable weight 34 that can move to an arbitrary position on a horizontal plane. 32 is attached to the lower surface of the floor receiving frame 16 of the car 10. The rest is the same as the first embodiment of FIG. 1, and the same components are denoted by the same reference numerals.

FIG. 5 shows the balance correcting device 32 as viewed from the car frame 11 side. A ball nut (not shown) is incorporated in the movable weight 34, and a ball screw 35 with which the ball nut is screwed is arranged in the left-right direction, and is driven to rotate by a driving unit 36. The ball screw 35 can be moved in the front-rear direction along the guide portion 37 by the driving device 36. The drive device 36 is subjected to position control by a control device (not shown), and can position the movable weight 34 at an arbitrary position in the front, rear, left, and right directions.

In the elevator balance correcting device 32 according to this embodiment, in order to maintain the dynamic balance of the car 10 that changes for each elevating position, the optimum position of the movable weight 34 is set in advance according to the elevating position. The moving weights 34 are respectively positioned at preset positions in accordance with the vertical position of the car 10. Therefore, the movable weight 34 maintains the dynamic balance of the car 10,
Since a moment for correcting the dynamic balance is generated, the car 10 can maintain a balance in the front-rear and left-right directions without deteriorating the dynamic balance, and can secure a stable riding comfort.

Next, with reference to FIGS. 6 and 7, a change in the dynamic balance of the car used in combination with the above-described first or second embodiment of the balance correction device is quantitatively detected. The balance detecting means will be described. From the output of the balance detecting means, when the detected value corresponding to the change amount of the dynamic balance of the car 10 exceeds a preset allowable range, the balance correcting device 22
Or 32 operates to generate a moment for correcting the dynamic balance.

The balance detecting means shown in FIG. 6 is arranged so that the displacement sensors 40a to 40c face the roller rolling surfaces 21a to 21b of the guide rail 21 from three directions via the sensor holding members 42, respectively. It is attached to the frame 15. Each displacement sensor 40a-4
0c is the roller rolling surface 21a to 2 of the guide rail 21.
1b can be detected.

While the car 10 is moving up and down, the control device provided on the control panel takes in the outputs of the displacement sensors 40a to 40c and checks whether or not the distance from the roller rolling surfaces 21a to 21b always fluctuates. Is being monitored. When the dynamic balance of the car 10 is lost due to the offset load of the compensating rope 18 and the tail cord 19, the change in the balance is immediately reflected as a change in the distance between the roller rolling surfaces 21a to 21c. When the variation of the distance exceeds a preset allowable range, a control device (not shown) operates the balance correction device 22 of the first embodiment or the balance correction device 32 of the second embodiment to generate a moment. As a result, the dynamic balance can be maintained, and a stable riding comfort can be secured. At this time, the displacement sensor 40a
To 40b can detect distances from three different directions, respectively, so that the inclination angles of the first frame 25 and the second frame 27 of the balance correction device 22 or the balance device 3 necessary for maintaining the balance can be obtained.
The position for positioning the second movable weight 34 can be calculated.

The compensating rope 18 and the tail cord 19
Not only the loss of dynamic balance due to the unbalanced load of
Similarly, the displacement of the dynamic balance of the car 10 due to the unbalanced load caused by the situation where the passengers enter the car room is also detected by the displacement sensor, and the balance correction device 22 or the balance correction device 32 is operated. Dynamic balance can be maintained.

Next, the balance detecting means shown in FIG. 7 will be explained with reference to FIG. 1 or FIG. 4, in which the guide device 20 for guiding the elevator car 10 to ascend and descend guide roller 44a for rolling the roller rolling surface of the guide rail 21. And a displacement sensor for detecting the amount of swing of the guide levers 46a to 46c supporting the guide levers 44c to 44c.

The guide rollers 44a to 44c are guided by the guide levers 46a to 46c so that they are pressed against the roller rolling surfaces 21a to 21c of the guide rail 21, respectively.
Are rotatably supported via rotary shafts 49a to 49c. Three
Of the two guide rollers 44a to 44c, the middle guide roller 44b clearly shown in FIG. 7 will be described as a representative.
Is supported by a bracket 50 fixed to the upper end of the standing frame 15 so as to be swingable by a support shaft 51b. The coil spring 52 urges the guide lever 46b toward the guide rail 21, and presses the guide roller 44b against the roller rolling surface 21b. Displacement sensor 54b
Is mounted on the sensor support 56, and indirectly detects the swing amount of the guide lever 46b by detecting the distance from the guide lever 46b. The similar displacement sensor 54a detects the distance from the guide lever 46a on which the guide roller 44a is supported, and indirectly detects the swing amount of the guide lever 46a. Although not shown, a displacement sensor for detecting the swing amount of a guide lever 46c that supports the third guide roller 44c is disposed on the sensor support 56 opposite to the displacement sensor 54b.

Since the guide rails 21 maintain straightness, if the dynamic balance of the car 10 is maintained, the guide rollers 44a to 44b smoothly roll on the guide rails, and the guide levers 46a to 46c are moved. It doesn't move much. However, if the dynamic balance of the car 10 is lost, the guide rollers 44a to 44c swing the guide levers 46a to 46c in the direction in which the balance is lost.

Therefore, while the car 10 is moving up and down, the control device provided on the control panel operates the displacement sensor 54a.
To 54c, and constantly outputs the guide lever 46.
It is monitored whether the distance from a to 46b has changed. When the dynamic balance of the car 10 is lost due to the offset load of the compensating rope 18 and the tail cord 19, the change in the balance is immediately reflected as a change in the distance between the guide levers 46a to 46c. When the variation of the distance exceeds a preset allowable range, a control device (not shown) operates the balance correction device 22 of the first embodiment or the balance correction device 32 of the second embodiment to generate a moment. To maintain dynamic balance,
A stable ride can be secured. At this time, the displacement sensors 54a to 54c can detect distances from three different directions, respectively. Therefore, the first frame 2 of the balance correction device 22 necessary to maintain balance is required.
It is possible to calculate the inclination angle of the fifth and second frames 27 or the position at which the movable weight 34 of the balance device 32 is positioned. In addition, the displacement sensors 54a to 54c remove the output signal of a predetermined frequency or more by a filtering process, so that the guide rail 2 having a high frequency and having a difficult response can be obtained.
No response can be made to vibrations due to the unevenness or the step of the seam, and a stable operation of the balance correction device can be ensured.

The compensation rope 18 and the tail cord 19
Not only the loss of dynamic balance due to the unbalanced load of
Similarly, the displacement of the dynamic balance of the car 10 due to the unbalanced load caused by the situation where the passengers enter the car room is also detected by the displacement sensor, and the balance correction device 22 or the balance correction device 32 is operated. Dynamic balance can be maintained.

As the balance detecting means, besides those shown in FIGS. 6 and 7, for example, an inclinometer for detecting the inclination of the floor of the car 10 with respect to the horizontal plane is provided, and based on the output of this inclinometer. The amount of change in the dynamic balance of the car may be detected.

Third Embodiment FIGS. 8 and 9 are views showing an elevator car according to a third embodiment of the present invention. In the third embodiment, one end of the compensating rope 18 or the tail cord 19 is located as close as possible to the center of gravity of the car 10 without using the balance correction device in the first and second embodiments. Mounting member 5 in which a fulcrum about the center of rotation is set
By suspending the compensating rope 18 or the tail cord 19 depending on the elevation position of the car 10 so that the suspension position of the compensating rope 18 or the tail cord 19 approaches the center of gravity of the car 10, the car 1
The dynamic balance of 0 is compensated for.

FIG. 8 shows that the compensating rope 18 is
This is an example of hanging from zero. At the lower end of the vertical frame 15 of the car frame 11, a mounting member 50 is supported rotatably about a support shaft 51. The position of the support shaft 51 is
Of the car 10 and closer to the center of gravity of the car 10. The compensating rope 18 is attached to the tip of the attachment member 50. The mounting member 50 is elastically supported by an elastic member 52 such as a coil spring.
Near the mounting position of the compensating rope 18, the elastic member 52
Is fixed to the lower beam 14 at one end. The elastic member 52 uses the elastic force to make the compensation rope 18
In the elevating position where the weight of the car 10 is supported and the balance of the car 10 is balanced, the mounting member 50 is supported in a horizontal posture.

Next, the operation of the present embodiment will be described. As the elevator position of the car 10 increases,
Compensation rope 18 and tail cord 1 supported by car 10
The weight of 9 increases and its unbalanced load tends to break the dynamic balance of the car 10. However, due to the increased weight of the compensating rope 18, as shown by the broken line in FIG.
To the center of gravity of the car. Therefore,
Since the dynamic balance of the car 10 is corrected by moving the suspension position of the compensating rope 18 toward the center of gravity, it is possible to maintain the balance and maintain stable riding comfort.

FIG. 9 shows an example in which the tail cord 19 is suspended from the mounting member 53. In this example, the car frame 11
The bracket 54 is horizontally extended from the lower part of the vertical frame 15 to support the mounting member 53 so as to be rotatable about the support shaft 55. The position of the support shaft 55 is as close as possible to the side where the center of gravity of the car 10 is located. One end of an elastic member 56 that elastically supports the attachment member 50 is attached to the tip of the attachment member 50, and the other end is fixed to the floor receiving beam 16.

Even when the tail cord 19 is hung from the mounting member 53 in this manner, the dynamic balance of the car 10 is changed by moving the suspension position of the tail cord 19 toward the center of gravity, as in the case of FIG. Since the correction is made, it is possible to maintain the balance and maintain a stable riding comfort.

Next, FIG. 10 shows the mounting member 5 in FIG.
This shows a modification in which 0 is supported by a parallel elastic member 52 and a damper 58. By incorporating the damper 58 in parallel with the elastic member 52 in this manner, the swing or vibration of the mounting member 50 due to the increase or decrease in the weight of the compensation rope 18 can be attenuated, and transmission to the car 10 can be suppressed. There is an advantage that the sense of stability of the riding comfort is improved. Note that the same effect can be obtained even if the attachment member 53 in FIG. 9 is similarly supported in parallel by the elastic member 56 and the attenuator.

FIG. 11 shows a modification in which a stopper 60 for limiting the upper limit of the rotation angle of the mounting member 50 is added. One end of the stopper 60 is fixed to the floor receiving frame 16 and has a bent distal end portion 60a.
Even if the mounting member 50 is rotated due to the increase in the weight of 8, the mounting member 50 abuts on the distal end portion 60 a of the stopper 60 and further rotation is prevented. Therefore, when the safety device of the elevator is activated or for some reason, the compensation rope 18 is not used.
Even if the vehicle is entangled with equipment on the hoistway, the breakage of the compensating rope 18 can be prevented, and the safety of elevator operation can be ensured. Note that a similar stopper may be applied to the attachment member 53 in FIG.

[0045]

As is apparent from the above description, according to the present invention, it is possible to correct a change in the weight balance between the front, rear, left and right of the car due to the offset load of the compensating rope and the tail cord, which change depending on the position of the car. In this way, a stable ride can be secured.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a car equipped with a gyro-type balance correcting device in an elevator according to the present invention.

FIG. 2 is a partial cross-sectional side view showing a gyro balance correction device attached to the car shown in FIG. 1;

FIG. 3 is a sectional view taken along the line II-II in FIG. 2;

FIG. 4 is a side view showing a second embodiment of a car provided with a movable weight type balance correcting device in the elevator according to the present invention.

FIG. 5 is a plan view of the moving weight type balance correction device of FIG. 4;

FIG. 6 is an explanatory view of a sensor arrangement showing balance detecting means for quantitatively detecting a change in dynamic balance of an elevator car.

FIG. 7 is an explanatory view of the arrangement of sensors showing balance detecting means according to another example.

FIG. 8 is a side view showing a third embodiment of a car having a balance correction function in the elevator according to the present invention.

FIG. 9 is a side view of a car having a balance correction function according to another modification.

FIG. 10 is a side view showing a modification in which a mounting plate for suspending a compensating rope is supported by an elastic member and an attenuator.

FIG. 11 is a side view showing an example in which a stopper that limits the upper limit of the rotation angle of the mounting plate is mounted.

FIG. 12 is a side view showing a conventional elevator car in which a compensating rope and a tail cord are suspended.

FIG. 13 is a schematic view of a conventional elevator in which a compensation rope and a tail cord are suspended.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Riding car 11 Car frame 12 Car room 17 Main rope 18 Compensation rope 19 Tail cord 22 Balance correction device 24 1st axis 25 1st frame 26 2nd axis 27 2nd frame 28 Rotating body 29 Rotation axis 32 Balance correction device 34 Moving Weight 35 Ball screw 40a-40c Displacement sensor 44a-44c Guide roller 46a-46c Guide lever 54a-54c Displacement sensor 50 Mounting member 51 Support shaft

Claims (12)

[Claims] An elevator in which a compensating rope for compensating for the weight of a main rope and a tail cord for transmitting a control signal between a car and a control panel are suspended from a car. A balance correction device for generating a moment for maintaining the dynamic balance of the car, which changes due to an unbalanced load due to weight, in an equilibrium state and correcting the dynamic balance of the car is provided in the car. Elevator. 2. A balance correction device comprising a gyroscope in which a rotating body rotating at a high speed is supported on a frame which can be tilted via axes orthogonal to each other, and a moment for maintaining a balanced state of the dynamic balance of the car. The elevator according to claim 1, wherein the frame is inclined at an angle at which the frame is generated. 3. The balance correction device according to claim 1, further comprising a movable weight movable to an arbitrary position on a horizontal plane, and a moving means for supporting the movable weight and moving the movable weight to an arbitrary position. 2. The elevator according to claim 1, wherein the movable weight is moved to a position where a moment for maintaining the state is generated. 4. The apparatus according to claim 1, wherein the balance correction device is configured to generate a correction moment set in advance for each elevator position in accordance with the elevator position as a moment required for correcting the dynamic balance of the elevator car. The elevator according to claim 2 or 3, wherein the elevator is operated. 5. The balance correction device according to claim 1, further comprising balance detecting means for quantitatively detecting a change in the dynamic balance of the car, wherein the change in the dynamic balance of the car exceeds a predetermined allowable range. The elevator according to claim 2 or 3, wherein a moment for correcting dynamic balance is generated. 6. A displacement sensor which is disposed in a plurality of directions in opposition to a roller rolling surface of a guide rail for guiding up and down movement of a car, and detects a distance from the roller rolling surface of the guide rail. 6. The elevator according to claim 5, further comprising: detecting a change amount of a dynamic balance of the car based on a change in a distance of the guide rail from a roller rolling surface. 7. The balance detecting means includes a displacement sensor for detecting a swing amount of a guide lever supporting a guide roller which rolls on a roller rolling surface of a guide rail for guiding the elevation of the car. 6. The elevator according to claim 5, wherein the amount of change in the dynamic balance of the car is detected based on the amount of swing of the guide lever. 8. The balance detecting means has an inclinometer for detecting the inclination of the floor of the car with respect to a horizontal plane, and detects the amount of change in the dynamic balance of the car based on the output of the inclinometer. The elevator according to claim 1, wherein: 9. An elevator in which a compensating rope for compensating the weight of a main rope and a tail cord for transmitting a control signal between a car and a control panel are suspended from a car. While providing the car with a rotatable mounting member to which one end side is mounted,
A fulcrum at the center of rotation of the mounting member is disposed near the center of gravity of the car, and a support for supporting the mounting member so as to rotate in accordance with a change in weight of the compensating rope or the tail cord due to the elevation position of the car. An elevator, characterized by having means. 10. An elevator according to claim 9, wherein said support means comprises an elastic member having one end connected to the car frame of the car and the other end connected to said mounting member. 11. The apparatus according to claim 1, wherein said support means comprises said elastic member and an attenuator interposed in parallel with said elastic member between a car frame of said car and said mounting member.
The elevator according to 0. 12. An elevator according to claim 10, wherein said support means further comprises a stopper for limiting an upper limit of a rotation angle of said mounting member.