JP2018154494A - Rope runout suppression unit - Google Patents

Abstract

An object of the present invention is to provide a rope runout suppression unit for an elevator, which is capable of suppressing a lateral runout of two rope portions in one direction by one unit. A steady rest bar (102) and an actuator (108) installed outside a lifting path of a car (26) as a first elevating body and a counterweight (28) as a second elevating body and rotating the steady rest bar (102). The steady rest bar 102 is rotated by an actuator 108 to be switched between a standing standby state and a lying operation state. In this actuation state, the steady rest bar 102 is The first rope portion (24A), which is one of the rope portions on the counterweight side, the counterweight side main rope portion 24B, and any one of the counterweight side counterbalance rope portions. The second rope portion (24B) is configured to lie on both sides of both rope portions 24A and 24B. [Selection diagram] FIG.

Description

  The present invention relates to a rope runout suppression unit, and more particularly to an elevator runout suppression unit that suppresses runout of a main rope and a balance rope caused by a building in which an elevator is installed due to an earthquake or the like.

  In recent years, as the number of buildings has risen, in rope-type elevators, fluctuations in main ropes and the like due to shaking of buildings due to earthquakes and strong winds have become a problem.

  Many rope elevators installed in high-rise buildings are provided with a machine room above the uppermost part of a car hoistway, and a hoisting machine for driving the car is installed in the machine room. A main rope is hung on the sheaves constituting the hoisting machine, and a car is connected to one end of the main rope and a counterweight is connected to the other end, and each is suspended by the main rope. ing. Then, the car guided by a pair of car guide rails laid in the vertical direction is moved up and down by rotating the sheave forward or backward by a prime mover.

  In an elevator with such a configuration, for example, when a building shakes due to long-period ground motion, the main rope hanging the car from the top of the building swings in the horizontal direction in the same direction as the shaking of the building (hereinafter, this horizontal The direction rope runout is referred to as “lateral runout”).

  When a shake due to an earthquake is detected, for example, the car is moved up and down to a predetermined evacuation floor, and the car is stopped on the evacuation floor, and then the operation is resumed after the lateral swing of the main rope is sufficiently attenuated. I am doing so.

  However, since the frequency of long-period ground motion is often close to the natural frequency of a high-rise building, the building shakes greatly, which increases the amplitude of the main rope's lateral vibration. Lateral vibrations do not converge easily, and it takes a lot of time to resume operation.

  On the other hand, Patent Document 1 discloses a rope runout suppressing device that suppresses lateral runout of a main rope portion that suspends a car.

  The rope shake suppression device described in Patent Literature 1 is configured to include two rope shake suppression units. Each of the rope run-out suppression units has a branch portion (hereinafter, referred to as “branch portion”) branched substantially perpendicularly to the center of a bar (hereinafter referred to as “main bar”) that is slightly longer than the distance between the pair of car guide rails. It has a steady bar with a “branch bar”. One end of the steady bar is rotated by a driving device attached to one guide rail via an attachment arm. Patent Document 1 states that “the steady bar is normally held upright away from the main rope, and when the elevator that detects an earthquake or strong wind stops, it is rotated horizontally by the drive device. (Patent Document 1 [Claim 1]).

  When the main rope swings toward the main bar in the steady bar in the horizontal state, when the main rope swings toward the branch bar, the further swing is suppressed by contacting the main bar, Further contact with the branch bar is suppressed.

JP 2014-227291 A

  By the way, the main rope runout due to an earthquake or the like becomes a problem not only in the main rope portion where the car is suspended but also in the main rope portion where the counterweight is suspended.

  In this case, in order to suppress at least one-way swing of the main rope portion that suspends the counterweight, it is necessary to install another rope swing suppression unit described in Patent Document 1.

  In view of the above-described problems, an object of the present invention is to provide a rope runout suppression unit that can suppress a lateral runout in one direction of two rope portions.

  In order to achieve the above object, a rope runout suppressing unit according to the present invention includes a first lifting body, a second lifting body, a first main rope portion for suspending the first lifting body, A second main rope portion that suspends the second lifting body, a first balancing rope portion that is suspended from the first lifting body, and a second balance that is suspended from the second lifting body. An elevator rope runout suppression unit installed in a hoistway in which the rope portion is housed, installed outside the hoisting path of the steady bar and the first and second hoisting bodies, An actuator for rotating the steady bar, and the steady bar is rotated by the actuator to be switched between a stand-by standby state and a lying-down operating state. In the operating state, the steady bar is The first main rope portion And a first rope portion that is one of the first balance rope portions, a second rope portion that is one of the second main rope portion and the second balance rope portion. It lies on the side of both rope parts of the rope part.

  Further, the steady bar is rotated by the actuator with the intermediate portion in the length direction as a rotation center, and the upper portion above the intermediate portion switches to the operating state in the standby state. And when the lower portion below the intermediate portion is switched to the operating state in the standby state, the upper portion is swung up to one side of the first and second rope portions in the operating state. And the lower part lies on the other side.

  Furthermore, the rope runout suppression unit is a rope runout suppression unit used for one elevator, the elevator has a hoisting machine including a sheave, and the first lifting body is a car, The second lifting body is a counterweight, the car is suspended from one end of a main rope wound around the sheave, and the counterweight is suspended from the other end; The first main rope portion is a portion of the main rope that suspends the car, and the second main rope portion is a portion of the main rope that suspends the counterweight, and the car A balancing rope with a balancing wheel hung at the lowermost end is suspended between the balancing weight, and the first balancing rope portion is the balance between the car and the balancing wheel. A second rope portion, the second rope portion , Wherein said is the balance rope portions between the counterweight and the balance wheel.

  Alternatively, the rope runout suppression unit is a rope runout suppression unit used in the first and second elevators arranged in parallel in the hoistway, and the first and second lift bodies are respectively A car constituting the first and second elevators, or the first and second lifting bodies are counterweights constituting the first and second elevators, respectively, and the actuator Is provided at the boundary between the installation area of the first elevator and the installation area of the second elevator in the hoistway.

  According to the rope swing suppression unit of the present invention, the steady bar that is rotated by the actuator and switched between the stand-by standby state and the lying-down operation state suspends the first lifting body in the operation state. 1st rope part and the 2nd main rope which suspends the 1st rope part and the 2nd lift body which are any one rope part of the 1st rope part and the 1st balance rope part suspended from the 1st lift body The first and second sides of the second rope portion lying on the sides of the second rope portion, which is one of the rope portions of the portion and the second balancing rope portion depending from the second lifting body. The one-way lateral runout in which the rope portion of the rope swings toward the steady bar can be suppressed by one rope runout suppression unit.

It is a figure which shows schematic structure of the elevator which has a rope runout suppression apparatus containing the rope runout suppression unit which concerns on Embodiment 1. FIG. It is a figure which shows an example of how to hang various ropes (roping) in the elevator. It is a conceptual diagram for demonstrating an example of the arrangement | sequence of the several rope which comprises a main rope. (A) is a top view which shows schematic structure of the said rope runout suppression apparatus, (b) is an exploded perspective view of a steady bar, (c) has shown the AA line expanded sectional view in (a), respectively. . (A) is a plan view of an actuator for rotating the steady bar and the vicinity thereof, and (b) is a plan view of the actuator and a torque limiter for connecting a base end portion of the steady bar to the actuator. is there. (A) is the figure which looked at the stand-by state of the steady bar when the elevator is normally drive | operating from the horizontal direction along the hoistway wall surface where the said steady bar was installed, (b) (c) These are the figures which looked at the standby state from the direction perpendicular | vertical to the said hoistway wall surface. (A) is the top view of the backup member provided in the hoistway and its vicinity, (b) saw the said backup member from the horizontal direction along the hoistway wall surface where the said backup member was provided It is a side view. It is a top view which shows schematic structure of the rope runout suppression apparatus containing the rope runout suppression unit which concerns on Embodiment 2. FIG. FIG. 10 is a plan view illustrating a schematic configuration of a rope runout suppression unit according to a modification of the second embodiment. It is the top view which showed schematic structure of the rope runout suppression unit which concerns on Embodiment 3 in the operating state. It is the side view which showed schematic structure of the rope runout suppression unit which concerns on Embodiment 3 in the standby state. It is the B section enlarged view in FIG.

Hereinafter, embodiments of a rope runout suppressing unit according to the present invention will be described with reference to the drawings.
<Embodiment 1>
FIG. 1 is a front view of a hoistway 12 in which an elevator 10 having rope runout suppression devices I, II, and III including a rope runout suppression unit according to Embodiment 1 is viewed from a landing (not shown) side. FIG. 2 is a right side view of the elevator 10. In addition, since FIG. 1 and FIG. 2 are the main objectives about the installation position in the up-down direction regarding the rope shake suppression apparatuses I, II, and III, the configuration of the rope shake suppression apparatuses I, II, and III Most of the elements are omitted.

  As shown in FIGS. 1 and 2, the elevator 10 is a rope-type elevator that employs a traction system as a driving system. A machine room 16 is provided in a building 14 portion above the uppermost part of the hoistway 12. In the machine room 16, a hoisting machine 18 and a deflecting wheel 20 are installed. A main rope 24 composed of a plurality of ropes is wound around the sheave 22 and the deflecting wheel 20 constituting the hoisting machine 18 (in FIG. 1, the plurality of ropes are described with an accurate number). Not.)

  A car 26 is connected to one end of the main rope 24, and a counterweight 28 is connected to the other end, and the car 26 and the counterweight 28 are suspended by the main rope 24 in a hanging manner. Yes.

  A balancing rope 32 comprising a plurality of ropes with a balancing wheel 30 hung on the lowermost end is suspended between the car 26 and the balancing weight 28. In this example, the number of the plurality of ropes constituting the main rope 24 and the number of the plurality of ropes constituting the balancing rope 32 is the same number (eight in this example).

  In the hoistway 12, a pair of car guide rails 34, 36 and a pair of counterweight guide rails 38, 40 are laid in the vertical direction (both not shown in FIGS. 1 and 2). (See FIG. 4 (a)).

  In the elevator 10 having the above configuration, when the sheave 22 is rotated forward or reversely by a hoist motor (not shown), the main rope 24 wound around the sheave 22 travels and is suspended by the main rope 24. The cage 26 and the counterweight 28 are raised and lowered in opposite directions. Along with this, the balancing rope 32 suspended between the car 26 and the balancing weight 28 travels back in the balancing wheel 30.

  Here, as shown in FIG. 2, in Embodiment 1, the main rope 24 portion that suspends the car 26 that is the first main rope portion is referred to as a car-side main rope portion 24A, and is the second main rope portion. The main rope 24 portion that suspends the counterweight 28 will be referred to as a counterweight-side main rope portion 24B. Further, the balance rope 32 portion (the balance rope 32 portion between the cage 26 and the balance wheel 30) suspended from the cage 26 which is the first balance rope portion is referred to as a cage-side balance rope portion 32A. The balance rope 32 balance rope portion (the balance rope portion between the balance weight 28 and the balance wheel 30) suspended from the balance weight 28, which is the second balance rope portion, is the balance weight side balance rope. It will be referred to as a portion 32B. According to the above definition, the length (range) of the car-side main rope portion 24A and the counterweight-side main rope portion 24B occupying the main rope 24, and the car-side balance rope portion 32A occupying the balance rope 32 The length (range) of the counterweight-side counterbalance rope portion 32 </ b> B expands and contracts (fluctuates) depending on the lift position of the car 26 and the counterweight 28.

  An arrangement of a plurality (eight in this example) of ropes M1 to M8 constituting the main rope 24 will be described with reference to FIG. FIG. 3 is a conceptual diagram showing the main rope 24 portion between the sheave 22 and the car 26, that is, the car-side main rope portion 24A.

  3A is a view of the sheave 22 and a part of the car side main rope portion 24A as viewed from the front, and the lower view of FIG. 3A is a view of the car 26 as viewed from the top. is there. The lower diagram of FIG. 3A is a diagram illustrating a correspondence relationship between the connection positions of the ropes M1 to M8 constituting the main rope 24 with respect to the car 26 in a plan view and the ropes M1 to M8. FIG. 3B is a view of the sheave 22, the car side main rope portion 24A, and a part of the car 26 as seen from the left side.

  As shown in the upper diagram of FIG. 3A, the eight ropes M1 to M8 are wound around the sheave 22 in this order in the horizontal direction (axial direction of the sheave 22) at equal intervals. . The lower ends of the ropes M1 to M8 are divided into two rows by the odd-numbered ropes M1, M3, M5 and M7 and the even-numbered ropes M2, M4, M6 and M8 as shown in the lower diagram of FIG. And connected to the car 26.

  In this way, the two rows are distributed in one row because of the influence of the size (outer diameter) of the stopper (shackle rod) that connects the ends of the ropes M1 to M8 to the car 26. This is because the distance between the ropes M <b> 1 to M <b> 8 is larger and there is a problem in effectively using the limited space above the car 26.

  The distance between the ropes M1, M3, M5, and M7 at the connection position to the car 26 and the distance between the ropes M2, M4, M6, and M8 are also equal, and the horizontal distance between the ropes M1 to M8 is also equal. Therefore, the horizontal direction of the ropes M1, M3, M5, M7, the ropes M2, M4, M6, M8 and the ropes M1 to M8 of the main rope 24 portion (the car side main rope portion 24A) from the sheave 22 to the car 26 The interval is an equal interval at any of the upper and lower positions.

  The arrangement of the ropes M1 to M8 in the counterweight main rope portion 24B is basically the same as that of the car side main rope portion 24A. Further, with respect to the balancing rope 32, the car-side balancing rope portion 32A only differs depending on whether the turn-back position is the sheave 22 or the balancing wheel 30 (that is, the up and down directions are opposite). The arrangement of the plurality of ropes in the counterweight side balance rope portion 32B is basically the same as that of the car side main rope portion 24A and the counterweight side main rope portion 24B, respectively.

  When the building 14 in which the elevator 10 having the above-described configuration is installed is a high-rise building, and the lifting stroke of the elevator 10 exceeds 100 m, for example, the main thing that is generated when the building 14 is shaken by a long-period earthquake or strong wind. The lateral runout of the rope 24 and the balancing rope 32 needs to be suppressed for the reasons described above.

  For this reason, as shown in FIGS. 1 and 2, the elevator 10 includes rope runout suppression devices I, II, and III at three locations in the hoistway 12 in the vertical direction. The installation positions of the rope runout suppression apparatuses I, II, and III will be described with reference to FIG.

  A reference position S is a lower end of the main rope 24 when the car 26 is landed on the first floor of the building 14 (a connection position to the car 26 by the stopper). At this time, the distance between the reference position S and the sheave 22 (the axis thereof) is D (D is the car side when the car 16 is landing on the first floor of the building 14). It is also the substantially total length of the main rope portion 24A).

  The rope runout suppression device I is installed around the reference position S where the height H1 = (1/4) · D. The rope runout suppression device II is installed around the reference position S where the height H2 = (1/2) · D. The rope runout suppression device III is installed in the vicinity of the height H3 = (3/4) · D from the reference position S.

  The reason for installing at the heights of H1, H2, and H3 is as follows. When the car 26 is landing on the first floor of the building 14, the length of the car side main rope portion 24 </ b> A (the counterweight side balancing rope portion 32 </ b> B) is closest to the height of the building 14. The car-side main rope portion 24A (the counterweight-side balance rope portion 32B) is likely to roll sideways in synchronism with the rolling of the car.

  In this case, when the building 14 rolls in the primary mode, the car side main rope portion 24A and the counterweight side balance rope portion 32B also roll in the primary mode, and the vibration antinode (that is, the portion where the amplitude is maximum). ) Appears at approximately H2. When the building 14 rolls in the secondary mode, the car side main rope portion 24A and the counterweight side balancing rope portion 32B also roll in the secondary mode, and the vibration node (that is, the portion where the amplitude is minimized) An antinode of vibration appears at about H2 and an antinode of vibration appears at about H1 and H3. Further, even when the building 14 rolls in the primary mode, the tension applied to the balancing rope 32 is relatively small, so that the counterweight side balancing rope portion 32B may swing in the secondary mode. is there.

  Therefore, when the above-mentioned maximum lateral vibration is increased, the rope vibration suppression devices I, II, and III are installed at positions where vibration antinodes may occur, and the lateral vibration is effectively suppressed. is there.

  However, depending on the position of the car 26 (landing floor), the main rope 24 part (car side main rope part 24A, fishing) appearing at the installation position (height H1, H2, H3) of the rope runout suppression devices I, II, III. The counterweight-side main rope portion 24B) and the balancing rope 32 portion (the car-side balancing rope portion 32A, the counterweight-side balancing rope portion 32B) vary.

Table 1 summarizes the correspondence between the position of the car 26 and the rope portions that appear at each of the heights H1, H2, and H3.

In Table 1, each of the symbols A, B, C, and D indicates the following car position.
A: When the car 26 is lower than the height H1 B: When the car 26 is between the height H1 and the height H2 C: When the car 26 is between the height H2 and the height H3 D: When the car 26 is higher than the height H3

  In Table 1, “◯” is written in the rope portion appearing at each installation position (H1 to H3) corresponding to the car position (A to D).

  Since all of the rope shake suppression devices I, II, and III have the same configuration, the rope shake suppression device III will be described as a representative, and detailed description of the rope shake suppression devices I and II will be omitted.

  FIG. 4A shows a state where the car 26 is stopped at the position “C” or “B” in Table 1. That is, the car-side main rope portion 24A and the counterweight-side main rope portion 24B are in a state in which the rope run-out suppressing device III is subject to steadying. In FIG. 4A, the following description will be made by taking the X axis in the front direction of the car 26 and the Y axis in the depth direction.

  As shown in FIG. 4A, the rope shake suppression device III includes four rope shake suppression units 100, 200, 300, and 400.

  In the rope runout suppression units 100, 200, 300, and 400, the same reference numerals are given to the last two digits that basically indicate the same components, and the details thereof are described in any of the rope runout suppression units 100, 200, 300, and 400. The description will be made with reference to 200, 300, 400, and the description with respect to the other rope runout suppression units 100, 200, 300, 400 will be omitted. The same applies to the reference numerals attached to members for installing the rope runout suppression units 100, 200, 300, 400 in the hoistway 12.

  The rope runout suppression unit 100 has a steady bar 102. The steady bar 102 includes a main body 104 and a buffer member 106. The main body 104 is made of metal (for example, stainless steel or aluminum), and for example, a square pipe is used. The buffer member 106 is made of an elastic body such as urethane rubber or silicone rubber.

  The buffer member 106 has a band shape, one main surface is formed in a flat surface, and the other main surface is formed in a concavo-convex shape (corrugated in the present example) in the length direction. The reason for such an uneven shape will be described later.

  The buffer member 106 is fixed (attached) to the main body 104 with the flat surface bonded to one side surface of the main body 104 with an adhesive (not shown). The attachment of the buffer member 106 to the main body 104 is not limited to adhesion, and screws may be used.

The steady bar 102 is rotated by an actuator 108 that generates rotational power.
As shown in FIG. 5A, the actuator 108 is connected to the base end portion of the steady bar 102.

  A bracket 114 is fixed to the hoistway wall 42, and an actuator 108 is attached to the bracket 114. Here, as shown in FIG. 4A, the hoistway 12 is a space surrounded by four hoistway walls 42 in this example, and the four hoistway walls 42 need to be distinguished. Is a letter “42” with alphabets A, B, C, and D. The actuator 108 is installed outside the lifting / lowering path of the counterweight 28 and the car 26.

  Returning to FIG. 5, the actuator 108 is a so-called spring return type known actuator. That is, when electric power is applied to the built-in motor (not shown) (that is, when the power is turned on), the output shaft 108A is rotated at a predetermined angle (90 in this example) while the built-in spring (not shown) is deformed by the power of the built-in motor. When the power is turned off, the output shaft 108A returns (returns) to the original angle by the predetermined angle by the restoring force of the built-in spring.

  The steady bar 102 is connected to the output shaft 108A via the torque limiter 110. The torque limiter 110 is a so-called flange type known torque limiter. In the torque limiter 110, the output shaft 108A is fitted into a shaft hole (both not shown) formed in the boss portion which is the original node.

  A flange of a flanged shaft 112 (hereinafter simply referred to as “shaft 112”) is attached to a flange portion (not shown) which is a follower in the torque limiter 110.

  The main body 104 of the steady bar 102 is fixed to the shaft 112. This fixing is performed, for example, by opening a hole (not shown) in the main body 104 and joining the shaft 112 and the main body 104 by welding in a state where the shaft 112 is inserted into the hole. Alternatively, all screw bolts are used for the shaft 112, the all screw bolts are inserted into through holes (not shown) provided in the main body 104, and the nuts (not shown) are fixed by tightening nuts (not shown) protruding from the main body 104. It doesn't matter.

  During normal operation of the elevator 10, the actuator 108 is powered off, and due to the action of the built-in spring (not shown), the steady bar 102 is shown by a solid line in FIG. It is held in a standing standby state.

  When the power of the actuator 108 is turned on, the steady bar 102 is swung down from the stand-by standby state until the actuator 108 is in a horizontal posture. While the power is on, the steady bar 102 is indicated by a one-dot chain line in FIG. Thus, it will be in the operating state which lies in the hoistway 12.

  When the power of the actuator 108 is turned off from the operating state, the steady bar 102 is rotated by the restoring force of the built-in spring and returns to the standby state.

  In this way, the steady bar 102 is rotated by the actuator 108 to be switched between the standing standby state and the lying operation state.

  In the operating state, as shown in FIG. 4A, the steady bar 102 lies on the sides of two rope portions (in the illustrated example, the car side main rope portion 24A and the counterweight side main rope portion 24B). Thus, with one rope run-out suppressing unit 100, lateral run-out in one direction (in the illustrated example, having a main displacement component in the X-axis direction) of the car-side main rope portion 24A and the counterweight-side main rope portion 24B. It can be set as the suppression target. That is, when the car-side main rope portion 24A and the counterweight-side main rope portion 24B have a main displacement component in the X-axis direction, the car-side main rope portion 24A and the counterweight-side main rope portion 24B Then, it comes into contact with (acts with) the steady bar 102 in the activated state, and further shake is suppressed. Here, the lateral shake having the main displacement component in the X-axis direction is hereinafter simply referred to as “lateral shake in the X-axis direction”.

  In this case, a part of the impact that the steady bar 102 receives in the horizontal direction from the two rope portions (in the illustrated example, the car side main rope portion 24A and the counterweight side main rope portion 24B) is one end of the steady bar 102. It is received by the actuator 108 provided at the portion (base end portion).

  The rope shake suppression unit 100 includes a backup member 116 so as to receive the impact also at the other end portion (tip portion) of the steady bar 102.

  As shown in FIG. 7, the backup member 116 has an arm part 116A and a support part 116B provided at the tip of the arm part 116A. In this example, the backup member 116 is formed by bending one end of a bar made of a metal material (for example, stainless steel or aluminum) at a right angle. Note that the arm portion and the support portion are not limited to being integrally formed as in this example, but may be formed separately and joined by welding, bolts, nuts, or the like.

  As shown in FIG. 7B, the backup member 116 has a stand-by posture shown by a one-dot chain line that stands up along the hoistway wall 42A and a support portion 116B. It is switched to the operating posture shown by the solid line that has advanced in the hoistway 12 to the side position of the tip of the steady bar 102. The side position is a side position opposite to the car side main rope portion 24A and the counterweight side main rope portion 24B of the steady bar 102 in the operating state.

  In order to rotate the backup member 116, an actuator 120 is attached to a bracket 118 fixed to the hoistway wall 42 </ b> A, and the backup member 116 is connected to the actuator 120 via a torque limiter 122. As shown in FIG. 4, the actuator 120 is installed outside the lifting / lowering path of the counterweight 28 and the car 26.

  The actuator 120 and the torque limiter 122 are the same type as the actuator 108 and the torque limiter 110 described above, although they are different in size. Further, the manner of connection between the actuator 120 and the backup member 116 via the torque limiter 122 is the same as the manner of connection between the actuator 108 and the steady bar 102 (main body 104) via the torque limiter 110 described above. It is. Therefore, the description of the configuration of the actuator 120 and the torque limiter 122 and the manner of connection between them and the backup member 116 will be omitted.

  During normal operation of the elevator 10, the power source of the actuator 120 is turned off, and the backup member 116 is lifted and lowered by the action of a built-in spring (not shown) as shown by a one-dot chain line in FIG. It is held in a stand-by posture standing along the road wall 42A.

  When the power source of the actuator 120 is turned on, the backup member 116 is swung down from the stand-by standby posture to the horizontal posture by the actuator 120, and while the power source is on, as shown by a solid line in FIG. Then, the support portion 116B is in the operating posture in which the support bar 116 has advanced to the side position of the steady bar 102.

  When the power of the actuator 120 is turned off from the operating state, the backup member 116 is rotated by the restoring force of the built-in spring and returns to the standby posture.

  As described above, the backup member 116 is rotated by the actuator 120 to be switched between the standby posture and the operating posture.

  In the operating posture, the backup member 116 tends to be displaced in the horizontal direction due to the collision of the rope portion that sways (in the illustrated example of FIG. 4A, the car side main rope portion 24A and the counterweight side main rope portion 24B). (In the illustrated example of FIG. 4A, the tip of the steady bar 102 that attempts to be displaced in the X-axis direction) is received by the support 116B.

  As described above, the backup member 116 of the rope runout suppression unit 100 is movable, and during the normal operation of the elevator 10, the standby position retracted from the elevator path of the car 26 and needs to support the steady bar 102. Sometimes switched to the above operating position. The reason that the backup member 216 is movable is also the same in the rope shake suppression unit 200. Such advantages will be described later.

  On the other hand, the backup member 324 of the rope runout suppression unit 300 is fixed as shown in FIGS. 4 (a) and 4 (c). The rope runout suppression unit 300 suppresses runout of a rope portion that has a main displacement component in the Y-axis direction and swings laterally (in the illustrated example of FIG. 4A, the car side main rope portion 24A). Here, the lateral shake having the main displacement component in the Y-axis direction is hereinafter simply referred to as “Y-axis direction lateral shake”.

  As shown in FIG. 4 (a), the backup member 324 is located in a side position opposite to the car-side main rope portion 24A at the front end of the steady bar 302 when in the operating state, so that the hoistway wall It is fixed to 42A.

  As shown in FIG. 4C, the backup member 324 has a mountain shape with a flat top, and the top 324 </ b> A receives the tip of the steady bar 302 to be displaced in the Y-axis direction. The slope 324B on the upper side of the backup member 324 serves as a guide surface when the steady bar 302 swings to the right with respect to the paper surface of FIG. 4C when the standby state is switched to the activated state. Further, the lower slope 324C serves as a guide surface for returning to the top 324A when the tip of the steady bar 302 goes too far downward and swings to the right.

  4 (a) and 4 (c), the backup member 324 is drawn in contact with the steady bar 302 in the activated state, but in reality, there is a slight gap. It should be noted that the slight gap is also the same between the steady bar 102 in the activated state and the support portion 116B of the backup member 116. Considering the impact received by the backup member 324 and the backup member 116 (the support portion 116B thereof), it is preferable that there is no gap, but in reality, it is difficult to have no gap (contact state). Even if there is a gap, if the gap is small, there is no problem in receiving the impact from the steady bar 102 and the steady bar 302.

  Corresponding to each of the rope runout suppression devices I, II, and III having the above-described configuration, the amplitude of the lateral runout of the main rope 24 or the balance rope 32 is detected at the heights H1, H2, and H3. Sensors are provided. The rope shake suppression device corresponding to the sensor that detects the amplitude exceeding the predetermined threshold is activated. The predetermined threshold is a minimum amplitude sufficient to recognize that the main rope 24 or the balancing rope 32 has started to sway due to the shaking of the building 14 caused by a long-period earthquake or strong wind.

  In this case, the operation order of the rope shake suppression units 100, 200, 300, and 400 in the rope shake suppression device III is as follows.

(I) The steady rest bars 102 and 202 are switched from the standby state to the operating state.
(Ii) The backup members 116 and 216 are switched from the standby posture to the operating posture.
(Iii) The steady rest bars 302 and 402 are switched from the standby posture to the operating posture.
Note that (ii) and (iii) may be in the reverse order described above, or simultaneously.

  The rope side runout suppression after (iii) is completed and the state shown in FIG. 4A will be described by taking the car side main rope portion 24A as an example. Hereinafter, in the description using FIG. 4A, when referring to the left, right, up and down direction (orientation) or the like toward the paper surface, the heading “to the paper surface” is omitted.

  When the car-side main rope portion 24A swings due to the shaking of the building 14 due to a long-period earthquake or strong wind, each of the ropes M1 to M8 constituting the car-side main rope portion 24A swings independently. However, if there are no obstacles, it basically rolls with the same behavior. That is, the horizontal shake is maintained while maintaining the arrangement shown in FIG.

  Lateral shake in the Y-axis direction is suppressed by the steady bar 302. When the car-side main rope portion 24A swings upward in the Y-axis direction and contacts the steady bar 302, further displacement of the car-side main rope portion 24A in the Y-axis direction is prevented. After coming into contact with the steady bar 302, the car side main rope portion 24A swings downward in the Y-axis direction, but the amount of displacement remains approximately upward. Thereby, an increase in lateral shake in the Y-axis direction can be suppressed. As can be seen from the above description, basically, in order to suppress lateral deflection in one direction in the main rope 24 or the balancing rope 32, basically, the one direction of the main rope 24 or the balancing rope 32 is the same. It is sufficient to lay a steady bar on one side.

  On the other hand, in order to suppress lateral deflection in the X-axis direction of the car-side main rope portion 24A, a pair of steadying bars 102 and 202 are provided on both sides in the X-axis direction with respect to the car-side main rope portion 24A. . As for the reason for providing both sides as described above, the case where only the steady bar 102 is provided and the steady bar 202 is not provided is assumed, and the case where the car side main rope portion 24A swings along the X axis is described as an example. To do.

  The car side main rope portion 24A swings leftward along the X axis. First, after the rope M1 is displaced by the distance L1 and contacts the steady bar 102, the cage side main rope portion 24A is displaced rightward by a distance approximately twice as long as L1. Turn left again. Following the rope M1, the ropes M2, M3,..., M8 abut against the steady bar 102 one after another. (At this time, the ropes M1 to M8 are collapsed from the arrangement shown in FIG. 4A.)

  In this case, the rope M8 swings leftward and abuts against the steady bar 102, then moves rightward by a distance approximately twice as long as L8, and turns left again.

  While the building 14 continues to shake and energy that causes vibration is applied to the main rope 24, at the height H3, the rope M1 swings with an amplitude approximately twice that of L1, and the rope M8 is approximately Sideways with an amplitude twice that of L8. When the shaking of the building 14 is settled, the lateral vibrations of the rope M1 and the rope M8 gradually converge, but the lateral vibration of the rope M1 converges first due to the difference in amplitude at the initial stage of convergence. The lateral runout of the rope M8 converges. As a result, the time required for convergence of the car-side main rope portion 24A becomes longer. Therefore, another anti-sway bar 202 is provided opposite the anti-sway bar 102, the convergence time of the roll of the rope M8 is made equal to that of the rope M1, and the convergence time of the car side main rope portion 24A is controlled to be steady. Compared to the case where only the bar 102 is used, the length is shortened.

  However, depending on the number and arrangement of the ropes constituting the main rope and the balancing rope, it is not always necessary to provide a pair of steadying bars in order to suppress lateral vibration in one direction, and only one may be provided. That is, even when there is one steady bar, there is no great difference in the horizontal distance from each of a plurality of ropes constituting the main rope and the balancing rope to the steady bar.

  As described above, when the rope M1 swings along the X axis, that is, when the rope M1 swings in the direction perpendicular to the steady bar 102, the rope M1 displaced leftward contacts the steady bar 102. After that, the distance is shifted to the right by approximately twice the distance L1 (that is, the amplitude at this time is twice that of L1).

  A case is assumed where the rope M1 swings sideways with respect to the steady bar 102 and the steady bar 102 does not have the buffer member 106 (only the main body 104). Since the rope M1 slides along the longitudinal direction of the main body 104 even after contacting (collision) with the main body 104, the rope M1 slides along the main body 104 as compared with the case where the rope M1 swings in a direction orthogonal to the main body 104. , The effect of suppressing shake will be diminished.

Therefore, the buffer member 106 is provided, and the surface thereof is formed in a concavo-convex shape (corrugated in this example) continuous in the length direction. As a result, even if the rope M1 abuts (collises) diagonally with respect to the steady bar 102, the rope M1 fits into one of the recesses (in this example, the wave valley), and further in the longitudinal direction. Can be prevented as much as possible. As a result, the displacement of the rope M1 can be stopped at the contact position with respect to the steady bar 102, and the lateral deflection of the rope M1 can be effectively suppressed as compared with the case where the above-described slip occurs.
As can be seen from the above description, the concave-convex shape has such a shape that each of the concave portions has a size to which each of the ropes M1 to M8 is fitted.

  Further, by providing the buffer member 106, the main body 104 is protected from the impact received from the ropes M1 to M8.

  As described above, when the car side main rope portion 24A sways in the Y-axis direction, the rope sway suppressor III is swayed in the X-axis direction by the rope sway suppression unit 300 (stabilization bar 302). Lateral runout is suppressed by the rope runout suppression unit 100 (stabilization bar 102) and the rope runout suppression unit 200 (stabilization bar 202).

  Here, as can be seen from FIG. 4 (a), in the steady bar 302 of the rope steady unit 300, the car-side main rope portion 24A abuts on the left side from the position (three-dimensional intersection) with the steady bar 102. Therefore, from the viewpoint of suppressing the side runout of the car side main rope portion 24A, the left side portion is unnecessary. That is, the steady bar 302 is longer than necessary. This is because the backup member 324 that supports the distal end portion of the steady bar 302 is fixed, and the distal end portion must be extended from the proximal end portion to the hoistway wall 42A where the backup member 324 is installed. is there.

  On the other hand, the steadying bar 102 of the rope runout suppression unit 100 is long enough to suppress the lateral runout in the X-axis direction of the car-side main rope portion 24A, and is not unnecessarily long. This is because the backup member 116 that supports the tip of the steady bar 102 is made movable. That is, since the base end portion of the arm portion 116A of the backup member 116 is rotated so that the support portion 116B is advanced to the side position of the distal end portion of the steady-state bar 102 in the activated state, It is because it is not necessary to extend the said front-end | tip part to the hoistway wall 42B.

  As described above, by making the backup member movable, the steady bar can be shortened compared to the case where the backup member is fixed. As a result, the torque required to rotate the steady bar at its proximal end is reduced, and the actuator that rotates the steady bar can be reduced in size.

  With the steady bars 102, 202, 302, 402 in the activated state and the backup members 116, 216 in the activated posture, the lateral deflection of the car side main rope portion 24A and the counterweight side main rope portion 24B is large. Is within the predetermined threshold value, the rest bars 102, 202, 302, 402 are switched to the standby state and the backup members 116, 216 are switched to the standby posture, and then the operation of the elevator 10 is resumed. The order of switching is the reverse of (i), (ii), and (iii) above, and is as follows.

(iv) The steady rest bars 302 and 402 are switched to the standby state.
(v) The backup members 116 and 216 are switched to the standby posture.
(vi) The steady bars 102 and 202 are switched to the standby state.
Note that (v) and (vi) may be in the reverse order described above, or may be simultaneous.

  As described above, the resting bars 102, 202, 302, and 402 in the standby state are held in an upright state by the action of the built-in springs (not shown) of the actuators 108, 208, 308, and 408, respectively. .

  For this reason, for example, when short-period ground motion that does not require operation of the rope vibration suppression units 100, 200, 300, and 400 because it is not long-period ground motion occurs, the steady-state stabilization bars 102, 202, 302, and 402 are in a standby state. May swing like an inverted pendulum. Since the steady bar 102, 202, 302, 402 is installed in the narrow hoistway 12, even if it is slightly shaken, its tip enters the hoisting path of the car 26 or the counterweight 28 that is the hoisting body. End up.

  When the elevator 10 is operated in this state, the car 26 or the counterweight 28 collides with the steady bars 102, 202, 302, 402, and the steady bars 102, 202, 302, 402 are damaged, The car 26 or the counterweight 28 may be damaged.

  Therefore, a blocking device is provided to prevent the steady bars 102, 202, 302, 402 from unexpectedly entering the lifting path of the car 26 or the counterweight 28.

  As the blocking device, the blocking device 126 of the rope shake suppression unit 100 will be described as a representative, and description and illustration of the blocking devices provided in the rope swing suppression units 200, 300, and 400 will be omitted.

  As shown in FIG. 6, a known electromagnetic actuator 126 is used for the shut-off device. The electromagnetic actuator 126 includes a frame 130 that houses a plunger 128 that is a blocking member and a solenoid (not shown) that is a drive unit that moves the plunger 128 forward and backward. The electromagnetic actuator 126 is attached to the hoistway wall 42 </ b> D via the bracket 132.

  When the electromagnetic actuator 126 energizes the solenoid, the plunger 128 moves backward from the state shown in FIG. 6B to the frame 130 side as shown in FIG. ) And the state shown in FIG. 6B.

  When the solenoid (not shown) is de-energized, the plunger 128 is swung out from the standby state to the operating state between the proximal end and the distal end of the steady bar 102 (in this example, it is swung down). It will be in the state which entered before the course. This prevents the steady bar 102 from unexpectedly entering the lifting path of the car 26 or the counterweight 28 in the standby state. Immediately before the steady bar 102 is switched from the standby state to the operating state, the solenoid is energized. As a result, the plunger 128 moves backward from the path, and the front of the path is opened.

  The electromagnetic actuator 126 can prevent the steady-state bar 102 in the standby state from unexpectedly entering the ascending / descending path of the car 26 or the counterweight 28. However, when the operation state is switched to the standby state, a malfunction of the actuator 108 occurs. For example, a situation may be assumed in which the steady bar 102 remains in the lifting path of the counterweight 28 and the car 26. If the operation of the elevator 10 is restarted in the event that this situation has occurred, the car 26 or the counterweight 28 will collide with the steady bar 102 and the steady bar 102 will be damaged.

  Therefore, in order to prevent damage to the steady bar 102 as much as possible, the steady bar 102 is connected to the output shaft 108A of the actuator 108 via the torque limiter 110 as described with reference to FIG. .

  The torque limiter 110 transmits torque that is equal to or lower than a preset cutoff torque, and blocks transmission of torque exceeding the cutoff torque. The shut-off torque is an overtorque that exceeds the torque required for the actuator 108 to rotate the steady bar 102 around the axis of the output shaft 108 </ b> A when an external force in the vertical direction acts on the steady bar 102 in the operating state. If it occurs, the size is set so as to block the transmission of the overtorque to the output shaft 108A.

  As a result, even if the car 26 or the counterweight 28 that moves up and down collides with the steady bar 102 that has entered the hoistway, the actuator 108 (the output shaft 108A) attached to the hoistway wall 42D does not collide. Since the steady bar 102 idles, the impact force received from the car 26 and the counterweight 28 is alleviated. As a result, damage to the steady bar 102 is prevented as much as possible.

  Further, as described with reference to FIG. 7, the backup member 116 (the support portion 116 </ b> B) supports the steady-state bar 102 from the side of the steady-state steady-state bar 102 (that is, the backup member 116 includes the backup member 116. Even in the operating posture, since the up-down direction of the steady bar 102 is open), the idling is not hindered.

  As described above, the rope shake suppressing device III has been described as an example of the rope shake suppressing device III. As described above, the rope shake suppressing devices I and II have the same configuration as the rope shake suppressing device III, and FIG. 1 and FIG. As shown, the only difference is the installation position of the hoistway 12 in the vertical direction.

  Depending on the difference in the installation position, the rope portion that may be a steady-state object in the main rope 24 or the balancing rope 32 differs as shown in Table 1. In other words, the target rope portion that is the target of steadying that exists on the side of the steadying bar in the operating state is different.

  Further, as is clear from FIG. 4A, the target rope portion also differs depending on the rope runout suppression units 100, 200, 300, and 400 constituting the rope runout suppression devices I, II, and III.

  The rope run-out suppressing unit 300 is the main side of the car-side main rope portion 24A or the car-side counterbalance rope portion 32A, and the rope run-out suppressing unit 400 is the main portion of the counterweight-side main rope portion 24B or the counterweight-side counterbalance-side rope portion 32B. It becomes.

  Further, the rope run-out suppressing units 100 and 200 are to be shaken only in the combinations shown in Table 1 depending on the installation position (which of the rope run-out restraining devices I, II, and III constitutes) and the position of the car 26 in the vertical direction. It becomes. In other words, in the operating state, the steady bars 102 and 202 are connected to either the rope portion of the car side main rope portion 24A or the car side balance rope portion 32A, and the counterweight side main rope portion 24B. Lying on both sides of either one of the rope portions 32B of the balance rope portion 32B, both the rope portions are set as the object of steadying.

  In the above example, as shown in FIG. 6, in the standby state, the steady bar 102 is in an upright state with the proximal end serving as the center of rotation facing downward and the distal end facing upward. When switching to, the steady bar 102 is swung down. However, the present invention is not limited to this, and in the standby state, the base end is in the upright state and the distal end is in the upright state. The bar may be swung up.

<Embodiment 2>
The steady-rest suppressing units 100 and 200 according to the first embodiment start swinging out from the standby state by rotating the base end portions of the steady-rest bars 102 and 202. For example, as shown in FIG. It was decided to lie on the side of the two rope portions of the portion 24A and the counterweight side main rope portion 24B.

  On the other hand, in the second embodiment, the intermediate portion of the steady bar is rotated so that the steady bar lies on the side of the two rope portions.

  In the rope shake suppression device IV in Embodiment 2 shown in FIG. 8, the rope shake suppression units 500 and 600 are replaced with the rope shake suppression units 100 and 200 (FIG. 4A) of the rope shake suppression devices I, II, and III. It was set as the structure provided with. In FIG. 8, the illustration of the rope runout suppression units 300 and 400 (FIG. 4A) is omitted. Moreover, about the component substantially the same as the elevator 10 in Embodiment 1, the same code | symbol is attached | subjected and it only stops referring to the description as needed. In FIG. 8, the X axis and the Y axis are defined in the same manner as in FIG.

  Further, since the rope shake suppression unit 500 and the rope shake suppression unit 600 are basically the same configuration, the rope shake suppression unit 500 will be described as a representative, and the reference numerals attached to the members constituting the rope shake suppression unit 600 are shown below. The same numbers as the last two digits of the reference numerals attached to the corresponding components in the rope run-out suppressing unit 500 are given to the girders, and descriptions thereof are omitted.

  The rope runout suppression unit 500 includes a steady bar 502 including a main body 504 and a buffer member 506, similar to the rope runout suppression unit 100 (FIG. 4A).

  An actuator 508 for rotating the steady bar 502 is attached to a bracket 534 fixed to the counterweight guide rail 38.

  The actuator 508 is the same type as the actuator 108 (FIG. 5), and the actuator 508 and the steady bar 502 are connected in the same manner as the actuator 108 and the steady bar 102. That is, the steady bar 502 is connected to the actuator 508 via the torque limiter 510 of the same type as the torque limiter 110 (FIG. 5). A flanged shaft (not shown), which is a follower in the torque limiter 510, is attached with a flanged shaft 512 (hereinafter simply referred to as “shaft 512”). 502 (main body 504) is fixed at an intermediate portion 502C in the length direction. Here, in the steady bar 502, with respect to the intermediate part 502C, as shown in FIG. 8, one side in the length direction is called a first steady part 502A and the other side is called a second steady part 502B. To do.

  In the rope steadying control unit 500 having the above configuration, the steadying bar 502 (not shown) in the standing standby state has a first steadying part 502A at the upper part from the intermediate part 502C and a lower part from the intermediate part 502C. Is the second steady rest 502B.

  When switching from the standby state to the operating state, the steady bar 502 is rotated by the actuator 508, the first steady part 502A is swung down, and the second steady part 502B is swung up. In the operating state, as shown in FIG. 8, the first steadying portion 502A lies on the side of the car side main rope portion 24A, and the second steadying portion on the side of the counterweight side main rope portion 24B. 502B lies down.

  Thus, by rotating the intermediate part of the steady bar 502, the torque required for the pivoting is less than that of the steady bar 102 that pivots one end (base end). . As a result, the actuator used for rotation can be reduced in size.

  In the above example, in the standby state, the first steady rest 502A is on the upper side and the second steady rest 502B is on the lower side, and when switching to the operating state, the first steady rest 502A is swung down and the second steady rest. Although the configuration in which the portion 502B is swung up is used, a configuration opposite to this may be used. That is, in the standby state, the first steadying portion 502A is in the lower side and the second steadying unit 502B is in the standing state, and when switching to the operating state, the first steadying unit 502A is swung up and the second steadying unit 502B. It may be configured to swing down.

(Modification)
FIG. 9 shows rope run-out suppressing units 700 and 800 according to a modification of the above-described rope run-out suppressing units 500 and 600. In FIG. 9, components that are substantially the same as those shown in FIG. 8 are given the same reference numerals, and descriptions thereof will be referred to only when necessary. Since the rope shake suppression unit 700 and the rope shake suppression unit 800 are basically the same configuration, the rope shake suppression unit 700 will be described as a representative, and the description of the rope shake suppression unit 800 will be omitted.

  As shown in FIG. 9, the tip portion of the first steadying portion 702A of the steadying bar 702 constituting the rope steadying unit 700 is a rope portion (in this example, the car side main rope portion 24A in the present embodiment). ) With respect to the direction parallel to the X axis. This inclined part is referred to as an inclined part 702D. Further, with respect to the steady bar 702, the right side is referred to as “inside” and the left side as “outside” as viewed in the drawing.

  When the car-side main rope portion 24 </ b> A undergoes a lateral shake in the X-axis direction, as described above, when the amplitude reaches the predetermined threshold, the first steady-rest portion 702 </ b> A of the steady-state bar 702 is in a stand-by standby state ( It is swung down from (not shown). In this case, if the swing amplitude increases faster than expected, or if the timing of swinging down is delayed for some reason, a car with a straight shape like the steady bar 502 (FIG. 8) There is a possibility that the side main rope portion 24A may turn to the outside of the steady bar. Therefore, by providing the inclined portion 702D, when the steady bar 702 is swung down, the car side main rope portion 24A when the tip of the first steady portion 702A passes just beside the car main rope portion 24A and The car-side main rope portion 24A is surely stopped inside the steady bar 702 by earning a distance in the X-axis direction. Note that an inclined portion may be provided also in the steady bars 102, 202, 302, and 402 (FIG. 4A).

<Embodiment 3>
In the first and second embodiments, the rope shake suppression units 100 and 200 (FIG. 4A), the rope shake suppression units 500 and 600 (FIG. 8), and the rope shake suppression units 700 and 800 (FIG. 9) are all Lateral runout of two rope parts in one elevator was suppressed by one steadying bar. On the other hand, the rope runout suppression unit according to the third embodiment includes the lateral runout of one rope portion of one elevator and the runout of one rope portion of the other elevator in two elevators arranged in parallel in the hoistway. Is configured to be suppressed by a single steady bar.

  As shown in FIG. 10, the rope runout suppression unit 900 according to the third embodiment is used for the first elevator 1000 and the second elevator 2000 that are arranged in parallel in the hoistway 52. The first elevator 1000 and the second elevator 2000 basically have the same configuration as the elevator 10 (FIG. 4). Therefore, as a code | symbol which points out the component which is common in the elevator 10, the 1st elevator 1000 uses the number of 1000s and the 2nd elevator 2000 uses the number of the 2000s. Corresponding numbers will be used, and the corresponding components will be referred to only when necessary. Also in FIG. 10, the X axis and the Y axis are defined as in FIG. In addition, illustration of the rope shake suppression units 100 and 200 (FIG. 4) for suppressing the lateral shake in the X-axis direction is omitted.

  The rope runout suppression unit 900 has a steady bar 902. The steady bar 902 includes a main body 904 and buffer members 906A and 906B attached to the main body 904 in two portions in the longitudinal direction. The main body 904 is basically the same as the main body 104 of the steady bar 102 (FIG. 4B) except for the length, and the buffer members 906 </ b> A and 906 </ b> B have the same configuration as the buffer member 106.

  The steady bar 902 is rotated by an actuator 908. The actuator 908 is the same type as the actuator 108 (FIG. 5).

  The actuator 908 is attached to a cantilever mounting beam 940 having one end fixed to the hoistway wall 52D via a bracket 942 as shown in FIG. The steady bar 902 is connected to the actuator 908 via a torque limiter 910. The torque limiter 910 is the same type as the torque limiter 110 (FIG. 5), and the mode of connection is the same as that of the rope runout suppression unit 100 (FIG. 5).

  However, in the rope runout suppression unit 100, as shown in FIG. 5A, the shaft 112 is only supported at one end, but the flanged shaft 912 in the rope runout unit 900 (hereinafter simply referred to as “shaft”). 912 ") is supported at both ends, as shown in FIG. In order to do this, as shown in FIG. 11, the cantilever mounting beam 944 is fixed to the hoistway wall 52B so as to face the mounting beam 940, and as shown in FIG. A bearing member 946 was attached, and the tip end portion of the shaft 912 was supported by the bearing member 946.

  When two elevators are arranged side by side in the same hoistway 52 as in this example, a certain interval is provided in the vertical direction of the hoistway, and is passed between the hoistway wall 52D and the hoistway wall 52B. Although an intermediate beam (not shown) (also referred to as a separator beam) is provided, the mounting beams 940 and 944 are provided between two adjacent upper and lower intermediate beams so as to overlap the intermediate beam in plan view. ing. The intermediate beam (not shown) is installed to support the car guide rails 1036 and 2034 and to attach various devices (not shown) provided in the hoistway 52.

  Further, a backup member 924A is fixed to the hoistway wall 52A, and a backup member 924B is fixed to the hoistway wall 52C. The backup members 924A and 924B have the same configuration as the backup member 324 (FIG. 4C).

  In the rope shake suppression unit 900 having the above-described configuration and installed as described above, the steady bar 902 is raised from the standby state shown in FIG. 11 to the actuator 908 to be in the operation state shown in FIG. When switched, the steady bar 902 is a first main rope portion to be steady, the car main rope portion 1024A for suspending the car 1026 in the first elevator 1000, and the second stable rope target is the second. In the second elevator 2000, which is the main rope portion of the car, the car 2026 is suspended and lies on both sides of the car-side main rope portion 2024A. As a result, a single steadying bar 902 can suppress lateral deflection in the Y-axis direction of the two rope portions of the car-side main rope portion 1024A and the car-side main rope portion 2024A.

  Further, the first main rope portion to be steady is a counterweight-side main rope portion 1024B, and the second main rope portion to be steady is also a counterweight-side main rope portion 2024B. In order to suppress the lateral shake of the direction, a rope shake suppression unit similar to the rope shake suppression unit 900 may be installed.

  Needless to say, the installation position (any one of the heights H1, H2, and H3 (FIG. 2)) of the rope runout suppression unit 900 and the vertical position of the car 1026 and the car 2026 in the hoistway 52 (landing) Depending on the floor, the two rope portions that the rope shake suppression unit 900 simultaneously suppresses lateral shake differ.

  The rope runout suppression unit according to the present invention can be suitably used as a device that suppresses the lateral runout of the main rope and the balance rope in an elevator with a long up / down stroke installed in a high-rise building, for example.

10, 1000, 2000 Elevator 24 Main rope 26, 1026, 2026 Car 28, 1028, 2028 Balance weight 32 Balance rope 100, 200, 500, 600, 700, 800, 900 Rope runout suppression unit 102, 202, 502, 602, 702, 802, 902 Stabilization bar 108, 208, 508, 608, 908 Actuator

Claims (4)

A first elevating body, a second elevating body, a first main rope portion for suspending the first elevating body, a second main rope portion for suspending the second elevating body, and the first For an elevator installed in a hoistway in which a first balancing rope portion suspended from one lifting body and a second balancing rope portion suspended from the second lifting body are housed Rope runout suppression unit,
A steady bar,
An actuator that is installed outside the lifting path of the first and second lifting bodies and rotates the steady bar;
Have
The steady bar is rotated by the actuator to be switched between a standing standby state and a lying operation state,
In the operating state, the steady bar includes a first rope portion, a second main rope portion, and a first rope portion that are either one of the first main rope portion and the first balance rope portion. A rope runout suppression unit, wherein the rope runout suppression unit lies on the side of both rope portions of the second rope portion, which is one of the two balancing rope portions.   The steady bar is pivoted by the actuator with the middle part in the length direction as a pivot center, and is swung down when the upper part above the middle part is switched to the operating state in the standby state. In the standby state, the lower part below the intermediate part is swung up when switching to the operating state, and in the operating state, the upper part lies on one side of the first and second rope parts. The rope runout suppressing unit according to claim 1, wherein the lower portion lies on the other side. The rope runout suppression unit is a rope runout suppression unit used for one elevator,
The elevator has a hoist including a sheave,
The first elevating body is a cage, the second elevating body is a counterweight, and the cage is suspended from one end of a main rope wound around the sheave, and the other end is The counterweight is suspended, the first main rope portion is the portion of the main rope that suspends the car, and the second main rope portion is the portion that suspends the counterweight. A part of the main rope,
A balancing rope with a balancing wheel hung at the lowermost end is suspended between the cage and the balancing weight, and the first balancing rope portion is between the cage and the balancing wheel. 3. The balance rope portion of claim 1, wherein the second balance rope portion is the balance rope portion between the balance weight and the balance wheel. 4. Rope runout suppression unit. The rope runout suppression unit is a rope runout suppression unit used for the first and second two elevators arranged in parallel in the hoistway,
The first and second lifting bodies are cars constituting the first and second elevators, respectively, or the first and second lifting bodies are the first and second elevators, respectively. A counterweight comprising
3. The rope runout suppression unit according to claim 1, wherein the actuator is provided at a boundary between an installation area of the first elevator and an installation area of the second elevator in the hoistway. 4.

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