WO2015033423A1

WO2015033423A1 - Rope-like body guiding device for elevator

Info

Publication number: WO2015033423A1
Application number: PCT/JP2013/073966
Authority: WO
Inventors: 大川　剛矢; 大輔中澤; 大樹福井; 渡辺　誠治
Original assignee: 三菱電機株式会社
Priority date: 2013-09-05
Filing date: 2013-09-05
Publication date: 2015-03-12

Abstract

A rope-like body is hung under only its own weight between a car-side rope-like body connection part of a car and a balance weight-side rope-like body connection part of a balance weight. A rope-like body guiding device for an elevator comprises a pair of horizontal spacing correction guide rollers which individually guide respective sections on the car side and the balance weight side of a rope-like body with respect to the lower end of a curved section of the rope-like body, and a roller position securing unit which secures the respective positions of the pair of horizontal spacing correction guide rollers. When the horizontal distance between the car-side rope-like body connection part and the balance weight-side rope-like body connection part is defined as a set reference distance (D₁), and the distance between respective sections on the car side and the balance weight side of the rope-like body at a position higher than the lower end of the curved section by one-half of the set reference distance (D₁) is defined as an object distance (D₂), the pair of horizontal spacing correction guide rollers push the rope-like body in a state in which the value of the object distance (D₂) is different from the value of the set reference distance (D₁) in a direction in which the difference between the values of the object distance (D₂) and the set reference distance (D₁) becomes smaller to thereby correct the hanging shape of the rope-like body.

Description

Elevator cable guide device

The present invention relates to an elevator cable guide apparatus for guiding a cable suspended between a car and a counterweight.

In conventional elevators, a balancing rope may be suspended between the car and the counterweight to compensate for the weight balance deviation between the car and the counterweight due to changes in the position of the car. is there. A tension wheel is suspended from the lower end position of the balancing rope. The vibration of the balancing rope is suppressed by applying tension to the balancing rope by the load of the tension wheel (see Patent Document 1).

JP 2001-247276 A

However, when the load of the tension wheel is applied to the balancing rope, the load of each device such as the connecting portion of the balancing rope to the car, the connecting portion of the balancing rope to the counterweight, and the elevator driving device is increased accordingly. Will become bigger. This leads to an increase in the size of the elevator device and an increase in the installation space of the device, resulting in an increase in the size of the elevator.

In addition, in order to avoid the increase in size of the elevator, it is also possible to suspend the balancing rope only with the weight of the balancing rope between the car and the balancing weight, without hanging a tensioner on the balancing rope. However, if it does in this way, the magnitude | size of the curved part of the balance rope formed in the lower end position of a balance rope may remove | deviate from a design value depending on the rigidity of a balance rope. If the car and the counterweight are moved in a state in which the curved portion of the counterbalance rope is greatly deviated from the design value, the counterbalance of the counterbalance rope tends to increase.

The present invention has been made to solve the above-described problems, and can prevent the elevator from becoming large-sized, and the roll of the cord-like body suspended between the car and the counterweight can be prevented. It is an object of the present invention to obtain an elevator cord-like body guide device capable of suppressing an increase in the number of elevators.

The elevator balancing rope guide device according to the present invention is hung only by its own weight between the car-side cable connecting portion provided in the car and the counterweight-side cable connecting portion provided in the counterweight. An elevator cable-shaped guide apparatus for guiding a cable-shaped body that is lowered and formed with a curved portion at a lower end position, and is arranged apart from each other in the horizontal direction and viewed from the lower end of the curved portion. A pair of horizontal gap correction guide rollers for individually guiding the respective portions on the side and the counterweight side, and a roller position fixing device for fixing the respective positions of the pair of horizontal gap correction guide rollers, the horizontal distance between the connecting portion and the counterweight-side cord-shaped body connecting portion and setting the reference distance D _1, the wick member in position higher lower half of the distance setting the reference distance D ₁ from the curved portion On the car side and the counterweight side When the distance between the respective parts and target distance D _2, a pair of horizontal spacing straightening guide rollers, the cord-like body the value of the object distance D ₂ is in the state different from the value of the set reference distance D _1, the target The hanging shape of the cord-like body is corrected by pushing in a direction in which the difference between the values of the distance D ₂ and the set reference distance D ₁ is reduced.

According to the elevator balancing rope guide device of the present invention, the suspended shape of the cable-shaped body can be brought close to an ideal shape in which the cable-shaped body is difficult to roll. Thereby, the increase in the roll of a cable-like body at the time of a movement of a cage | basket | car and a counterweight can be suppressed. In addition, since a load such as a tension wheel is not applied to the cord-like body, it is possible to prevent the equipment from becoming large and to prevent the elevator from becoming large.

It is a block diagram which shows the elevator by Embodiment 1 of this invention. FIG. 1 is a schematic view showing a suspended shape of a balancing rope when a balancing rope having ideal rigidity is suspended between a cage and a balancing weight in a state where the balancing rope guide device of FIG. 1 is not installed. FIG. It is a schematic diagram which shows the hanging shape of a balance rope when the rigidity of the balance rope of FIG. 2 is larger than ideal rigidity. It is a schematic diagram which shows the hanging shape of a balance rope when the rigidity of the balance rope of FIG. 2 is smaller than ideal rigidity. It is a schematic diagram which shows the state which is correcting the suspended shape of the balance rope of FIG. 3 with a pair of horizontal space | interval correction guide rollers. It is a schematic diagram which shows the state which is correcting the suspended shape of the balance rope of FIG. 4 with a pair of horizontal space | interval correction | amendment guide roller. It is an enlarged view which shows the balance rope guide apparatus of FIG. It is a perspective view which shows the balance rope guide apparatus of FIG. It is a top view which shows the horizontal space | interval correction | amendment guide roller of FIG. FIG. 8 is a front view showing a state in which the pair of horizontal gap correction guide rollers of FIG. It is a perspective view which shows the balance rope guide apparatus of FIG. It is a front view which shows the state in which each of a pair of horizontal space | interval correction | amendment guide roller in the balance rope guide apparatus of the elevator by Embodiment 2 of this invention is arrange | positioned in the outer side guide position. It is a perspective view which shows the balance rope guide apparatus of FIG. It is a front view which shows the state in which each of a pair of horizontal space | interval correction | amendment guide roller in the balance rope guide apparatus of FIG. 12 is arrange | positioned in an inner side guide position. It is a perspective view which shows the balance rope guide apparatus of FIG. It is a front view which shows the state in which each of a pair of horizontal space | interval correction | amendment guide roller in the balance rope guide apparatus of the elevator by Embodiment 3 of this invention is arrange | positioned in the outer side guide position. It is a perspective view which shows the balance rope guide apparatus of FIG. FIG. 17 is a front view showing a state in which each of the pair of horizontal gap correction guide rollers of FIG. 16 is arranged at the inner guide position. It is a perspective view which shows the balance rope guide apparatus of FIG. It is a front view which shows the state in which each of a pair of horizontal space | interval correction | amendment guide roller in the balance rope guide apparatus of the elevator by Embodiment 4 of this invention is arrange | positioned in the outer side guide position. It is a perspective view which shows the balance rope guide apparatus of FIG. It is a front view which shows the balance rope guide apparatus of the elevator by Embodiment 5 of this invention. It is a front view which shows the balancing rope guide apparatus of the elevator by Embodiment 6 of this invention. It is a perspective view which shows the balance rope guide apparatus of the elevator of FIG.

Preferred embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a block diagram showing an elevator according to Embodiment 1 of the present invention. In the figure, a machine room 2 is provided in the upper part of the hoistway 1. In the machine room 2, a hoisting machine (driving device) 4 having a driving sheave 3, a deflecting wheel 5 arranged away from the driving sheave 3, and a control panel (control device) 6 that controls the operation of the elevator. And are provided. A car 7 and a counterweight 8 are provided in the hoistway 1 so as to be movable in the vertical direction.

A suspension body 9 for suspending the car 7 and the counterweight 8 is wound around the driving sheave 3 and the deflector 5. As the suspension body 9, for example, a rope or a belt is used. The driving sheave 3 is rotated by the driving force of the motor of the hoisting machine 4. The car 7 and the counterweight 8 are moved in the vertical direction in the hoistway 1 as the driving sheave 3 is rotated.

In the lower part of the car 7, a car-side cable hanging part 11 and a car-side rope hanging part (cage-side cable-like body hanging part) 12 are provided apart from each other. A hoistway side cable suspending portion 13 is provided at an intermediate portion of the hoistway 1. On the side portion of the counterweight 8, a counterweight-side rope suspending portion (a counterweight-side cord-like body suspending portion) 14 is provided.

A control cable (moving cable) 15, which is a flexible long object, is suspended between an intermediate portion of the hoistway 1 and the car 7. The control cable 15 is connected to each of the car-side cable suspending portion 11 and the hoistway-side cable suspending portion 13. The control cable 15 forms a cable bending portion 15 a at the lower end position of the control cable 15 while being suspended between the intermediate portion of the hoistway 1 and the car 7. The control cable 15 is moved according to the movement of the car 7 while moving the cable bending portion 15a in the vertical direction.

An electrical wiring 18 is provided between the hoistway cable suspension 13 and the control panel 6. The car 7 and the control panel 6 are electrically connected via the control cable 10 and the electric wiring 18.

Between the car 7 and the counterweight 8, a plurality of (in this example, three) counter ropes 16 which are flexible cords (long objects) for weight balance compensation are suspended and hung. ing. By suspending the balancing rope 16 between the car 7 and the counterweight 8, a deviation in weight balance between the car 7 side and the counterweight 8 side is compensated. Each balancing rope 16 is connected to each of the car-side rope suspending portion 12 and the counterweight-side rope suspending portion 14. Further, each balancing rope 16 is suspended only by its own weight between the car-side rope suspending portion 12 and the counterweight-side rope suspending portion 14. As the cable-like body for compensating the weight balance, a long object (for example, Whisperflex (trademark) or the like) configured by covering the chain with a resin may be used instead of the balancing rope 16.

Horizontal distance (wick member suspending portions between the horizontal distance) between the car side rope hanging part 12 and the counterweight-side rope suspension unit 14 is a set reference distance D _1. Car 7 and the counterweight 8 is moved in the vertical direction while maintaining the value of the set reference distance D _1. At the lower end position of the balancing rope 16, a part of the balancing rope 16 is bent to form a rope bending portion (curving portion) 16a. When the car 7 and the counterweight 8 move, the counter rope 16 is moved in the length direction of the counter rope 16 while maintaining the position where the rope bending portion 16a is formed.

The lower end (pit portion) of the hoistway 1 has a car shock absorber (not shown) for reducing the impact received by the car 7 due to the collision with the bottom surface of the hoistway 1 and a counterweight due to the collision with the bottom surface of the hoistway 1. A counterweight shock absorber 17 is provided to relieve the impact received by 8. In addition, a balancing rope guide device (cord guide device) 21 for guiding the balancing rope 16 is installed at the lower end of the hoistway 1.

The balancing rope guide device 21 includes a pair of horizontal interval correction guide rollers 22 that are arranged apart from each other in the horizontal direction, and a roller position fixing device 23 that fixes the position of each horizontal interval correction guide roller 22. ing. In this example, the roller position fixing device 23 is attached to the counterweight buffer 17.

One of the pair of horizontal spacing correction guide rollers 22 guides the cage 7 side portion of the balancing rope 16 as viewed from the lower end of the rope bending portion 16a, and the other of the balancing rope 16 as viewed from the lower end of the rope bending portion 16a. Guide the counterweight 8 side. The respective rotation axes of the horizontal gap correction guide rollers 22 are arranged perpendicular to the plane including the rope bending portion 16a.

Here, the relationship between the rigidity of the balancing rope 16 and the suspended shape of the balancing rope 16 will be described. FIG. 2 shows the balance when the balancing rope 16 having ideal rigidity is suspended between the car 7 and the balancing weight 8 without the balancing rope guide device 21 of FIG. It is a schematic diagram which shows the hanging shape of the rope 16. FIG. FIG. 3 is a schematic diagram showing a suspended shape of the balance rope 16 when the rigidity of the balance rope 16 of FIG. 2 is larger than the ideal rigidity. Further, FIG. 4 is a schematic diagram showing a suspended shape of the balancing rope 16 when the rigidity of the balancing rope 16 of FIG. 2 is smaller than the ideal rigidity.

When the distance between the respective parts on the car 7 side and the counterweight 8 side of the balancing rope 16 at a position that is higher than the lower end of the rope bending portion 16a by a distance ½ of the set reference distance D ₁ is the target distance D _2. , in the state being suspended by only its own weight between the counterweight rope 16 the car 7 and the counterweight 8 with ideal rigidity, as shown in FIG. 2, the value of the target distance D ₂ is set reference distance D _It is the same as the value of ₁ (D ₂ = D ₁ ), and the shape of the rope bending portion 16a is an arc shape having a curvature radius D _1/2 . In this state, the balancing rope 16 is present on the vertical line A passing through the cage-side rope hanging portion 12 in the section from the cage-side rope hanging portion 12 to the rope bending portion 16a, and the balancing weight-side rope hanging. In the section from the portion 14 to the rope bending portion 16a, it exists on the vertical line B passing through the counterweight-side rope suspension portion 14. When the suspended shape of the balancing rope 16 is the shape shown in FIG. 2, the rolling of the balancing rope 16 is less likely to increase when the car 7 and the balancing weight 8 are moved. That is, the suspended shape of the balancing rope 16 shown in FIG. 2 is an ideal shape that suppresses an increase in the rolling of the balancing rope 16.

On the other hand, in the state where the balancing rope 16 having a rigidity larger than the ideal rigidity is suspended only by its own weight between the car 7 and the balancing weight 8, the curvature of the rope bending portion 16a is as shown in FIG. The radius is larger than ½ of the set reference distance D ₁ and the value of the target distance D ₂ is larger than the value of the set reference distance D ₁ (D ₂ > D ₁ ). That is, in this state, the position higher lower half of the distance setting the reference distance D ₁ from the rope bent portion 16a, both the respective parts of the car 7 side and the counterweight 8 side of the balance rope 16 It exists outside the range between the vertical lines A and B.

Further, in the state where the balancing rope 16 having a rigidity smaller than the ideal rigidity is suspended only by its own weight between the car 7 and the balancing weight 8, the curvature of the rope bending portion 16a is as shown in FIG. The radius is smaller than ½ of the set reference distance D ₁ and the value of the target distance D ₂ is smaller than the value of the set reference distance D1 (D ₂ <D ₁ ). That is, in this state, the position higher lower half of the distance setting the reference distance D ₁ from the rope bent portion 16a, both the respective parts of the car 7 side and the counterweight 8 side of the balance rope 16 It exists inside the range between the vertical lines A and B.

That is, in the suspended shape of each balancing rope 16 shown in FIGS. 3 and 4, the value of the target distance D ₂ is different from the value of the set reference distance D ₁ . The suspension shape of each balancing rope 16 shown in FIGS. 3 and 4 is a shape in which the rolling of the balancing rope 16 is likely to increase compared to the ideal suspension shape shown in FIG.

The balance rope guide device 21 is arranged so that the balance rope 16 is in a state in which the value of the target distance D ₂ is different from the value of the set reference distance D ₁ , that is, a suspended shape as shown in FIG. 3 or FIG. The suspended shape of the balancing rope 16 is corrected by pushing the pair of horizontal gap correction guide rollers 22 in a direction in which the difference between the value of the target distance D _{2 and} the value of the set reference distance D ₁ is reduced. That is, the pair of horizontal gap correction guide rollers 22 corrects the suspended shape of the balance rope 16 by pushing the balance rope 16 in the opposite directions with respect to the horizontal direction. The respective positions of the horizontal gap correction guide rollers 22 are set by the roller position fixing device 23 so that the value of the target distance D _{2 is the same as} the value of the set reference distance D ₁ . Therefore, the position of each of the pair of horizontal gap correction guide rollers 22 in the horizontal direction is based on the vertical line A passing through the car-side rope suspending portion 12 and the vertical line B passing through the counterweight-side rope suspending portion 14. It has been decided.

FIG. 5 is a schematic diagram showing a state in which the suspended shape of the balancing rope 16 of FIG. 3 is corrected by a pair of horizontal gap correction guide rollers 22. For the balancing rope 16 of FIG. 3 in which the value of the target distance D ₂ is larger than the value of the set reference distance D ₁ , as shown in FIG. The suspended shape of the balancing rope 16 is corrected by pressing the portions 16a in the opposite directions from the outside. In this case, when viewed from the lower end of the rope bending portion 16a of FIG. 3, the horizontal distance between the portion of the counter rope 16 on the cage 7 side and the portion of the counter rope 16 on the counterweight 8 side is the largest. place a pair of horizontal spacing straightening guide roller 22 in a position to, by pressing the balance rope 16 at horizontal intervals straightening guide roller 22 pair from the outer direction toward each other rope bend 16a, the object distance D ₂ value There has been corrected hanging shape of the counterweight rope 16 so as to be equal to the value for setting the reference distance D _1.

In the state where the suspended shape of the balancing rope 16 in FIG. 3 is corrected by the pair of horizontal gap correction guide rollers 22, as shown in FIG. 5, a pair of pushing the balancing rope 16 from the outside of the rope bending portion 16a. A pair of horizontal gap correction guide rollers 22 are individually arranged at the outer guide position. In a state where the pair of horizontal spacing straightening guide rollers 22 are arranged individually on the pair of outer guide position, at a position higher by the lower end half of the distance setting the reference distance D ₁ from the rope bent portion 16a, a pair of horizontal An interval correction guide roller 22 exists outside the range between the vertical lines A and B.

FIG. 6 is a schematic diagram showing a state in which the suspended shape of the balancing rope 16 of FIG. 4 is corrected by a pair of horizontal gap correction guide rollers 22. For the balancing rope 16 of FIG. 4 in which the value of the target distance D ₂ is smaller than the value of the set reference distance D ₁ , as shown in FIG. by pressing from the inside parts 16a in a direction away from each other, and correct the hanging shape of the counterweight rope 16 as the value of the target distance D ₂ is equal to the value for setting the reference distance D _1.

In a state where the suspended shape of the balancing rope 16 in FIG. 4 is corrected by the pair of horizontal gap correction guide rollers 22, as shown in FIG. 6, a pair of pushing the balancing rope 16 from the inside of the rope bending portion 16a. A pair of horizontal gap correction guide rollers 22 are individually arranged at the inner guide position. In a state where the pair of horizontal spacing straightening guide rollers 22 are arranged individually on the pair of inner guide position, at a position higher by the lower end half of the distance setting the reference distance D ₁ from the rope bent portion 16a, a pair of horizontal The gap correction guide roller 22 exists inside the range between the vertical lines A and B.

FIG. 7 is an enlarged view showing the balancing rope guiding device 21 of FIG. FIG. 8 is a perspective view showing the balancing rope guiding device 21 of FIG. Further, FIG. 9 is a top view showing the horizontal gap correction guide roller 22 of FIG. The pair of horizontal gap correction guide rollers 22 are respectively arranged with the axial direction of the rotation shaft aligned with the direction in which the balancing ropes 16 are arranged. Further, as shown in FIG. 9, a plurality of (in this example, three) grooves 25 into which the balancing ropes 16 are inserted are formed on the outer periphery of each horizontal gap correction guide roller 22. Are provided along the circumferential direction.

As shown in FIGS. 7 and 8, the roller position fixing device 23 includes a pair of vertical position adjustment units 31 that can individually adjust the position of each horizontal gap correction guide roller 22 in the vertical direction (vertical direction); A pair of vertical position adjustment units 31 is attached, and a horizontal position adjustment unit 41 that can adjust the position of each vertical position adjustment unit 31 in the horizontal direction is provided.

A pair of horizontal gap correction guide rollers 22 is individually attached to each vertical position adjustment unit 31. Each vertical position adjustment unit 31 has a pair of vertical positioning frames 32 arranged along the vertical direction. The horizontal gap correction guide roller 22 is detachably attached to each of the upper and lower positioning frames 32 while being disposed between the pair of positioning frames 32.

In each vertical positioning frame 32, a plurality of positioning holes (positioning portions) 33 are provided at intervals in the vertical direction. In each of the positioning holes 33, the rotation axis of the horizontal interval correction guide roller 22 is detachable by a fastener (not shown). The position of each horizontal gap correction guide roller 22 can be adjusted in the vertical direction by selectively mounting the rotation axis of the horizontal gap correction guide roller 22 in any one of the positioning holes 33. For example, when the balance rope 16 expands and contracts due to secular change or the like, and the vertical position of the rope bending portion 16a changes, the selection of the positioning hole 33 for mounting the rotation axis of the horizontal interval correction guide roller 22 is changed. The respective positions of the horizontal gap correction guide rollers 22 are adjusted in the vertical direction.

The horizontal position adjustment unit 41 has a pair of upper horizontal positioning frames (horizontal positioning frames) 42 to which the upper portions of the vertical position adjustment units 31 are detachably attached, and the lower portions of the vertical position adjustment units 31 are detachably attached. And a pair of lower horizontal positioning frames (horizontal positioning frames) 43. Each of the horizontal positioning frames 42 and 43 is fixed to the counterweight buffer 17 in a state of being arranged in parallel with each other along the horizontal direction.

In each

horizontal positioning frame

42, 43, a plurality of positioning holes (positioning portions) 44 are provided at intervals in the horizontal direction (longitudinal direction of the horizontal positioning frames 42, 43). The positions of the positioning holes 44 are set based on the vertical lines A and B, corresponding to the outer guide position and the inner guide position of the horizontal gap correction guide roller 22, respectively.

The upper portion of the vertical positioning frame 32 is detachably attached to each positioning hole 44 of the upper horizontal positioning frame 42 by a fastener (not shown). In each of the positioning holes 44 of the lower horizontal positioning frame 43, the lower portion of the vertical positioning frame 32 is detachable by a fastener (not shown). The position of each vertical position adjustment unit 31 is adjusted in the horizontal direction by selectively mounting the upper and lower portions of the vertical positioning frame 32 in one of the positioning holes 44 of the horizontal positioning frames 42 and 43, respectively. It is possible. Therefore, in the roller position fixing device 23 according to the present embodiment, the position of each of the pair of horizontal gap correction guide rollers 22 is adjusted in the horizontal direction by adjusting the position of each vertical position adjustment unit 31 in the horizontal direction. . The respective positions of the pair of horizontal gap correction guide rollers 22 are selected as either the outer guide position or the inner guide position by adjusting the horizontal gap correction guide rollers 22 in the horizontal direction.

7 and 8 show a state in which the pair of horizontal gap correction guide rollers 22 are arranged at the outer guide position. Therefore, the state of the balancing rope guiding device 21 shown in FIGS. 7 and 8 is a state where the suspended shape of the balancing rope 16 of FIG. 3 is corrected.

FIG. 10 is a front view showing a state in which the pair of horizontal gap correction guide rollers 22 of FIG. 7 is arranged at the inner guide position. FIG. 11 is a perspective view showing the balancing rope guiding device 21 of FIG. 10 and 11, since the pair of horizontal gap correction guide rollers 22 are arranged at the inner guide position, the state of the balance rope guide device 21 shown in FIGS. 10 and 11 is the balance of FIG. The suspended shape of the rope 16 is corrected.

Next, a method for installing the balancing rope guide device 21 will be described. The counterweight buffer 17 is provided with the upper horizontal positioning frame 42 and the lower horizontal positioning frame 43 in advance. Thereafter, the operator determines whether the suspension shape of the balance rope 16 is the type shown in FIG. 3 or FIG. 4 while confirming the shape of the rope bending portion 16 a of each balance rope 16.

Thereafter, when the suspended shape of the balance rope 16 is the shape shown in FIG. 3, the pair is placed at the outer guide position, and when the suspended shape of the balance rope 16 is the shape shown in FIG. The positioning holes 44 of the horizontal positioning frames 42 and 43 are selected so that the horizontal spacing correction guide rollers 22 are arranged, and the vertical positioning frames 32 are fastened to the horizontal positioning frames 42 and 43, respectively. Attach with.

Thereafter, the respective height positions of the pair of horizontal interval correction guide rollers 22 are determined so that the value of the target distance D ₂ after correction is the same as the value of the set reference distance D ₁ , and each horizontal interval correction guide roller is determined. 22, the suspension shape of the balance rope 16 is corrected while pushing the balance rope 16 in the opposite directions, and the rotation axis of each horizontal spacing correction guide roller 22 is attached to the positioning hole 33 of each vertical positioning frame 32 with a fastener. To do. In this way, the balancing rope guide device 21 is installed in the hoistway 1.

In such a balancing rope guide device 21, the balancing rope 16 in which the value of the target distance D ₂ is different from the set reference distance D ₁ is compared with the difference between the target distance D ₂ and the set reference distance D _1. Since the suspension shape of the balance rope 16 is corrected by pushing it with a pair of horizontal gap correction guide rollers 22 in the direction in which the balance rope 16 becomes smaller, the balance rope 16 is suspended in an ideal shape in which the balance rope 16 is less likely to roll. The lowered shape can be approximated. Thereby, the increase of the rolling of the balance rope 16 at the time of the movement of the cage | basket | car 7 and the balance weight 8 can be suppressed. In addition, since a load such as a tension wheel is not applied to the balancing rope 16, it is possible to reduce the burden on equipment such as the car-side rope suspending portion 12, the counterweight-side rope suspending portion 14, and the hoisting machine 4. Thereby, the enlargement of these apparatuses can be prevented and the enlargement of an elevator can be prevented.

Further, the positions of the pair of horizontal gap correction guide rollers 22 are set such that the value of the target distance D _{2 is} the same as the value of the set reference distance D _1. However, it is possible to further suppress an increase in the rolling of the balancing rope 16 when the car 7 and the counterweight 8 are moved.

Further, since the respective positions of the pair of horizontal gap correction guide rollers 22 are individually adjusted in the vertical direction by the pair of vertical position adjustment units 31, the length of the balancing rope 16 changes due to, for example, secular change. When the vertical position of the rope bending portion 16a changes, the position of each horizontal gap correction guide roller 22 can be adjusted in accordance with the change in the length of the balancing rope 16. In addition, each horizontal gap correction guide roller 22 can be individually supported by the pair of vertical position adjustment units 31, and the respective adjustment positions of the horizontal gap correction guide rollers 22 can be more reliably maintained.

In addition, since the position of each vertical position adjustment unit 31 can be individually adjusted in the horizontal direction by the horizontal position adjustment unit 41, each position of the pair of horizontal gap correction guide rollers 22 can be easily adjusted in the horizontal direction. be able to.

Further, the vertical positioning frame 32 of the vertical position adjusting unit 31 is provided with a plurality of positioning holes 33 in which the rotation axis of the horizontal spacing correction guide roller 22 can be attached and detached at intervals in the vertical direction. Each position of the gap correction guide roller 22 can be adjusted in the vertical direction with a simple configuration.

Further, the horizontal positioning frames 42 and 43 of the horizontal position adjusting unit 41 are provided with a plurality of positioning holes 44 in which the vertical positioning frame 32 can be attached and detached at intervals in the horizontal direction. Each position of the guide roller 22 can be adjusted in the horizontal direction with a simple configuration.

Embodiment 2. FIG.
FIG. 12 is a front view showing a state in which each of the pair of horizontal gap correction guide rollers 22 in the elevator balancing rope guide device 21 according to Embodiment 2 of the present invention is disposed at the outer guide position, and FIG. It is a perspective view which shows the balancing rope guide apparatus 21 of this. 14 is a front view showing a state in which each of the pair of horizontal gap correction guide rollers 22 in the balancing rope guide device 21 of FIG. 12 is disposed at the inner guide position, and FIG. 15 is a balancing rope guide of FIG. 3 is a perspective view showing the device 21. FIG.

The roller position fixing device 23 is provided with a pair of vertical position adjusting units 51 and a pair of vertical position adjusting units 51 that can individually adjust the positions of the horizontal gap correction guide rollers 22 in the vertical direction (vertical direction). The horizontal position adjusting unit 61 is capable of adjusting the position of each vertical position adjusting unit 51 in the horizontal direction.

A pair of horizontal gap correction guide rollers 22 is individually attached to each vertical position adjustment unit 51. Each vertical position adjustment unit 51 is provided at a pair of screw rods 52 that can be rotated in a state of being arranged along the vertical direction (vertical direction), and the lower end portion of the screw rods 52, and individually interlocks with the screw rods 52. A pair of handles 53 and a pair of movable blocks 54 that are screwed into the respective screw rods 52 and move in the vertical direction along the screw rods 52 according to the rotation of the screw rods 52 are provided. In this example, the structure in which the movable block 54 is screwed to the screw rod 52 is a ball screw structure.

The horizontal gap correction guide roller 22 is disposed between the pair of movable blocks 54. The rotation axis of the horizontal gap correction guide roller 22 is detachably attached to each movable block 54 with a fastener.

Each screw rod 52 rotates around the axis of the screw rod 52 by turning a handle 53 provided at the lower end thereof. The horizontal gap correction guide roller 22 is moved in the vertical direction by rotating the pair of screw rods 52 and moving the movable blocks 54 along the screw rods 52. That is, the respective positions of the pair of horizontal gap correction guide rollers 22 can be adjusted in the vertical direction by the rotation of the screw rods 52 in the vertical position adjusting units 51.

The horizontal position adjustment unit 61 includes a pair of upper horizontal positioning frames (horizontal positioning frames) 62 provided with the upper portions of the vertical position adjustment units 51 and a pair of lower horizontal positioning units provided with the lower portions of the vertical position adjustment units 51. And a frame (horizontal positioning frame) 63. Each of the horizontal positioning frames 62 and 63 is fixed to the counterweight buffer 17 in a state of being arranged in parallel with each other along the horizontal direction.

Each lower horizontal positioning frame 63 is provided with a plurality of (in this example, two) slits 64 along the horizontal direction (longitudinal direction of the lower horizontal positioning frame 63). The lower part of the vertical position adjustment part 51 is provided in the lower horizontal positioning frame 63 with the lower part of the screw rod 52 and the shaft part of the handle 53 passed through the slits 64. The respective positions of the vertical position adjusting parts 51 can be adjusted in the horizontal direction by sliding the lower part of the vertical position adjusting part 51 with respect to the lower horizontal positioning frame 63 while being guided by the slits 64. The respective positions of the pair of horizontal gap correction guide rollers 22 are adjusted in the horizontal direction by adjusting the position of each vertical position adjusting unit 51 in the horizontal direction.

An upper support block 55 provided at the upper end of each screw rod 52 is attached to each upper horizontal positioning frame 63. The upper support block 55 supports the screw rod 52 in a rotatable manner. The position of the upper support block 55 with respect to the upper horizontal positioning frame 63 can be adjusted by loosening a fastener provided on the upper support block 55, and is fixed by tightening the fastener. Other configurations are the same as those in the first embodiment.

In such a balancing rope guide device 21, the horizontal interval correction guide roller 22 is provided in the movable block 54 that moves in accordance with the rotation of the screw rod 52. Therefore, by rotating the screw rod 52, the horizontal interval correction is performed. The position of the guide roller 22 can be continuously adjusted in the vertical direction. Accordingly, even when the vertical position of the rope bending portion 16a changes due to secular change or the like, each of the pair of horizontal gap correction guide rollers 22 is matched to the change in the vertical position of the rope bending portion 16a. The position can be adjusted more accurately in the vertical direction.

In addition, since each vertical position adjustment unit 51 is slid along the slit 64 provided in the lower horizontal positioning frame 63, each position of each vertical position adjustment unit 51 can be adjusted in the horizontal direction. The respective positions of the pair of horizontal gap correction guide rollers 22 can be continuously adjusted in the horizontal direction. Thereby, for example, the error of the position of each horizontal gap correction guide roller 22 due to the dimensional error or installation error of each member of the roller position fixing device 23 can be finely adjusted in the horizontal direction. Each horizontal gap correction guide roller 22 can be more accurately arranged at the position.

In addition, it is good also considering the structure of the vertical position adjustment part 51 as the structure of the vertical position adjustment part 31 in Embodiment 1 among the vertical position adjustment part 51 and the horizontal position adjustment part 61 in this Embodiment. In addition, of the vertical position adjustment unit 51 and the horizontal position adjustment unit 61 in the present embodiment, the configuration of the horizontal position adjustment unit 61 may be the configuration of the horizontal position adjustment unit 41 in the first embodiment.

Embodiment 3 FIG.
FIG. 16 is a front view showing a state in which each of the pair of horizontal spacing correction guide rollers 22 in the elevator balancing rope guide device 21 according to Embodiment 3 of the present invention is disposed at the outer guide position, and FIG. It is a perspective view which shows the balancing rope guide apparatus 21 of this. 18 is a front view showing a state in which each of the pair of horizontal gap correction guide rollers 22 in FIG. 16 is disposed at the inner guide position, and FIG. 19 is a perspective view showing the balancing rope guide device 21 in FIG. is there.

The roller position fixing device 23 can adjust the position of the horizontal position adjusting unit 71 in the vertical direction and the horizontal position adjusting unit 71 which is a common roller mounting body to which the pair of horizontal gap correction guide rollers 22 are detachably mounted. And a vertical position adjustment unit 81.

The horizontal position adjustment unit 71 has a pair of horizontal positioning frames 72 that connect the horizontal gap correction guide rollers 22 as shown in FIGS. 17 and 19. Each horizontal positioning frame 72 is arranged horizontally. In each horizontal positioning frame 72, a plurality of positioning holes (positioning portions) 44 are provided at intervals in the horizontal direction (longitudinal direction of the horizontal positioning frame 72). The positions of the positioning holes 44 are set based on the vertical lines A and B, corresponding to the outer guide position and the inner guide position of the horizontal gap correction guide roller 22, respectively.

In each positioning hole 44 of the horizontal positioning frame 72, the rotating shaft of the horizontal gap correction guide roller 22 is detachable by a fastener (not shown). The position of each horizontal gap correction guide roller 22 can be adjusted in the horizontal direction by selectively mounting the rotation axis of the horizontal gap correction guide roller 22 in one of the positioning holes 44 of the horizontal positioning frame 72. It has become. Thereby, each position of a pair of horizontal space | interval correction | amendment guide roller 22 can be selected to either an outer side guide position or an inner side guide position.

The vertical position adjusting unit 81 has a pair of vertical positioning frames 82 arranged along the vertical direction. A pair of upper support frames 83 arranged horizontally are connected between the upper portions of the vertical positioning frames 82 and the counterweight buffer 17. The state in which the vertical positioning frames 82 are arranged in the vertical direction is maintained by the support of the upper support frames 83 with respect to the vertical positioning frame 82.

In each vertical positioning frame 82, a plurality of positioning holes (positioning portions) 33 are provided at intervals in the vertical direction. In each of the positioning holes 33, the central portion in the longitudinal direction of the horizontal positioning frame 72 is detachable by a fastener (not shown). The position of the horizontal position adjusting unit 71 can be adjusted in the vertical direction by selectively attaching the longitudinal center portion of the horizontal positioning frame 72 to any one of the positioning holes 33. The respective positions of the pair of horizontal gap correction guide rollers 22 are adjusted in the vertical direction by the vertical position adjustment of the horizontal position adjusting unit 71. Other configurations are the same as those in the first embodiment.

In such a balancing rope guide device 21, a pair of horizontal gap correction guide rollers 22 is detachably attached to a horizontal position adjustment unit 71 that is a common roller attachment body, and the position of the horizontal position adjustment unit 71 is adjusted in the vertical position. Since it can be adjusted in the vertical direction by the portion 81, the respective positions of the horizontal gap correction guide rollers 22 are simultaneously adjusted in the vertical direction only by adjusting the position of the common horizontal position adjusting unit 71 in the vertical direction. be able to. Thereby, the burden of the operation | work which adjusts each position of a pair of horizontal space | interval correction | amendment guide roller 22 can be reduced.

In addition, since the position of the horizontal position adjustment unit 71 that can adjust the position of each pair of horizontal gap correction guide rollers 22 in the horizontal direction can be adjusted in the vertical direction by the vertical position adjustment unit 81, each horizontal gap correction Each position of the guide roller 22 can be adjusted in the horizontal direction.

Embodiment 4 FIG.
FIG. 20 is a front view showing a state in which each of the pair of horizontal gap correction guide rollers 22 in the elevator balancing rope guide device 21 according to Embodiment 4 of the present invention is disposed at the outer guide position. FIG. 21 is a perspective view showing the balancing rope guiding device 21 of FIG.

The roller position fixing device 23 can adjust the position of the horizontal position adjusting unit 71 in the vertical direction and the horizontal position adjusting unit 71 which is a common roller mounting body to which the pair of horizontal gap correction guide rollers 22 are detachably mounted. And a vertical position adjusting unit 91. The configuration of the horizontal position adjustment unit 71 is the same as the configuration of the horizontal position adjustment unit 71 in the third embodiment.

The vertical position adjusting portion 91 is provided on the support base 93 and a pair of screw rods 92 that can rotate in a state of being arranged along the vertical direction, a common support base 93 that supports each screw rod 92, and a support base. A common handle 94 that interlocks with each of the threaded rods 92 via an interlocking mechanism (not shown) housed in 93 and is screwed to each threaded rod 92, and along the threaded rod 92 according to the rotation of the threaded rod 92. And a pair of movable blocks 95 that move in the vertical direction. In this example, a structure in which the movable block 95 is screwed to the screw rod 92 is a ball screw structure.

An upper support block 96 provided at the upper end of the screw rod 92 is fixed to each upper support frame 83 attached to the counterweight buffer 17. The upper support block 96 supports the screw rod 92 in a rotatable manner.

The horizontal position adjusting unit 71 is disposed between the pair of movable blocks 95. A central portion in the longitudinal direction of each horizontal positioning frame 72 of the horizontal position adjusting unit 71 is detachably attached to each movable block 95 with a fastener.

Each screw rod 92 rotates simultaneously around the axis of the screw rod 92 by turning a common handle 94. The horizontal position adjusting unit 71 is moved in the vertical direction by rotating the pair of screw rods 92 and moving the movable blocks 95 along the screw rods 92. The respective positions of the pair of horizontal gap correction guide rollers 22 can be adjusted in the vertical direction by the rotation of each screw rod 92. Other configurations are the same as those of the third embodiment.

20 and 21, the pair of horizontal gap correction guide rollers 22 are arranged at the outer guide position to correct the suspended shape of the balancing rope 16 of FIG. When the suspended shape of the balance rope 16 is the shape shown in FIG. 4, the pair of horizontal gap correction guide rollers 22 is arranged at the inner guide position to correct the suspended shape of the balance rope 16.

As described above, by adjusting the position of each horizontal gap correction guide roller 22 in the vertical direction by rotating the screw rod 92, the position of each horizontal gap correction guide roller 22 can be more accurately set in the vertical direction. Can be adjusted.

Embodiment 5 FIG.
FIG. 22 is a front view showing an elevator balancing rope guide device 21 according to Embodiment 5 of the present invention. Two pairs of horizontal gap correction guide rollers 22 are detachably attached to the horizontal positioning frame 72. One pair of horizontal interval correction guide rollers 22 is disposed at each outer guide position, and the other pair of horizontal interval correction guide rollers 22 is disposed at each inner guide position. That is, of the positioning holes 44 of the horizontal positioning frame 72, the rotation shafts of one horizontal gap correction guide roller 22 are detachably attached to the positioning holes 44 corresponding to the pair of outer guide positions, respectively. The rotation shaft of the other horizontal gap correction guide roller 22 is detachably attached to each positioning hole 44 corresponding to the position. Other configurations are the same as those of the third embodiment.

As described above, since the horizontal gap correction guide rollers 22 are arranged at each of the pair of outer guide positions and the pair of inner guide positions, the suspended shape of the balancing rope 16 can be corrected more reliably. For example, when the stiffness of the balancing rope 16 changes greatly due to aging, ambient temperature changes, etc., and the stiffness of the balancing rope 16 becomes the stiffness of each of the balancing ropes 16 in FIGS. 3 and 4, The suspended shape of the balancing rope 16 can be corrected.

Embodiment 6 FIG.
FIG. 23 is a front view showing an elevator balancing rope guide device 21 according to Embodiment 6 of the present invention. FIG. 24 is a perspective view showing the elevator balancing rope guide device 21 of FIG.

The balancing rope guide device 21 further includes a plurality of curved portion correction guide rollers 24 that press the rope curved portion 16a and correct the shape of the rope curved portion 16a so that the shape of the rope curved portion 16a becomes an arc shape. .

The roller position fixing device 23 includes a common roller mounting body 101 and a vertical position adjusting unit 81 that can adjust the position of the roller mounting body 101 in the vertical direction. The configuration of the vertical position adjustment unit 81 is the same as the configuration of the vertical position adjustment unit 81 in the third embodiment. In this example, as shown in FIG. 24, the roller attachment body 101 has a cylindrical shape having a rectangular cross section that collectively surrounds the rope bending portions 16a.

The respective rotation axes of the horizontal gap correction guide rollers 22 and the curved portion correction guide rollers 24 are detachably attached to a common roller attachment body 101. In this example, each horizontal gap correction guide roller 22 and each curved portion correction guide roller 24 are arranged in a cylinder of the roller attachment body 101. In this example, a plurality of curved portion correction guide rollers 24 are arranged on the outer side and the inner side of the rope curved portion 16a. In FIGS. 23 and 24, each horizontal distance correction guide roller 22 is disposed at a pair of outer guide positions for correcting the suspended shape of the balancing rope 16 shown in FIG.

The horizontal central portion of the roller mounting body 101 can be attached to and detached from each positioning hole 33 of the vertical positioning frame 82 in the vertical position adjusting unit 81 by a fastener (not shown). The position of the roller mounting body 101 can be adjusted in the vertical direction by selectively attaching the longitudinal center of the horizontal positioning frame 72 to any of the positioning holes 33. The respective positions of the horizontal gap correction guide rollers 22 and the curved portion correction guide rollers 24 are collectively adjusted in the vertical direction by adjusting the position of the roller attachment body 101 in the vertical direction. Other configurations are the same as those of the third embodiment.

In such a balancing rope guide device 21, a plurality of bending portion correction guides that correct the shape of the rope bending portion 16a by pushing the rope bending portion 16a so that the shape of the rope bending portion 16a of the balancing rope 16 becomes an arc shape. Since the roller 24 is detachably attached to the roller attachment body 101, the suspended shape of the balancing rope 16 can be brought closer to the ideal shape shown in FIG. 2, and the car 7 and the counterweight 8 It is possible to further reliably suppress an increase in the rolling of the balancing rope 16 during the movement.

In the above example, each curved portion correction guide roller 24 is arranged on each of the outer side and the inner side of the rope curved portion 16a, but depending on the rigidity of the balancing rope 16, the outer and inner sides of the rope curved portion 16a are arranged. The curved portion correction guide rollers 24 may be disposed only on either of them to correct the shape of the rope curved portion 16a.

Also, the configuration of the vertical position adjustment unit 81 in the fifth and sixth embodiments may be the configuration of the vertical position adjustment unit 91 in the fourth embodiment.

Further, in each of the above embodiments, the roller position fixing device 23 is attached to the counterweight buffer 17, but the present invention is not limited to this. For example, the roller is fixed to the guide rail or the like for guiding the car 7 or the counterweight 8. A position fixing device 23 may be attached.

Moreover, in each said embodiment, although each position of a pair of horizontal space | interval correction | amendment guide roller 22 can be adjusted about an up-down direction, without considering the secular change etc. of the balancing rope 16 as a cord-like body In this case, the positions of the pair of horizontal gap correction guide rollers 22 may be determined in advance and cannot be changed.

Claims

A curved portion is formed at the lower end position by being hung only by its own weight between the cage-side cable connecting portion provided on the car and the counterweight-side cable connecting portion provided on the counterweight. An elevator cable guide device for guiding a cable that is present,
A pair of horizontal gap correction guide rollers which are arranged apart from each other in the horizontal direction and individually guide the cage side and the counterweight side of the cable-like body as viewed from the lower end of the curved portion; A roller position fixing device for fixing each position of the horizontal gap correction guide roller,
The horizontal distance between the car-side cord-shaped body connecting part and the counterweight-side cord-shaped body connecting portion and setting the reference distance D 1,
When the distance between the respective parts on the cage side and the counterweight side of the cord-like body at a position higher by a distance of ½ of the set reference distance D 1 than the lower end of the curved portion is a target distance D 2. ,
The pair of horizontal distance correction guide rollers is configured to connect the cord-like body in which the value of the target distance D 2 is different from the value of the set reference distance D 1 to the target distance D 2 and the set reference distance D. A cord guide device for an elevator that corrects the suspended shape of the cord by pushing in a direction in which the difference between the respective values of 1 is reduced.
2. The elevator cord according to claim 1, wherein the positions of the pair of horizontal gap correction guide rollers are set such that the value of the target distance D 2 is the same as the value of the set reference distance D 1. Body guidance device.
3. The elevator cable-shaped body guide according to claim 1 or 2, wherein the roller position fixing device has a vertical position adjusting unit that adjusts the position of each of the pair of horizontal gap correction guide rollers in the vertical direction. apparatus.
4. The elevator cable-shaped body guide device according to claim 3, wherein the roller position fixing device has a pair of the vertical position adjusting devices that can individually adjust the pair of horizontal gap correction guide rollers in the vertical direction. .
The roller position fixing device adjusts the positions of the pair of horizontal gap correction guide rollers in the horizontal direction by individually adjusting the positions of the pair of vertical position adjustment units in the horizontal direction. The elevator cable-shaped body guide device according to claim 4, further comprising:
The roller position fixing device further includes a common roller attachment body to which the pair of horizontal gap correction guide rollers are detachably attached,
4. The elevator cable-shaped body guiding apparatus according to claim 3, wherein the vertical position adjusting unit is capable of adjusting the position of the roller mounting body in the vertical direction.
The elevator cable-shaped body guiding device according to claim 6, wherein the roller mounting body is a horizontal position adjusting unit capable of adjusting each position of the pair of horizontal gap correction guide rollers in the horizontal direction.
A plurality of bending portion correction guide rollers for pressing the bending portion to correct the shape of the bending portion so that the shape of the bending portion becomes an arc shape;
The elevator rope-like body guide device according to claim 6, wherein a pair of the horizontal gap correction guide rollers and the curved portion correction guide rollers are detachably attached to the roller mounting body.