JP6658637B2 - Rope runout suppression unit - Google Patents

Description

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

  2. Description of the Related Art In recent years, as a building becomes higher in height, a swing of a main rope or the like accompanying a swing of the building due to an earthquake or strong wind has become a problem in a rope type elevator.

  In many rope-type elevators installed in high-rise buildings, a machine room is provided above the top of the hoistway of the car, and a hoist that drives the car is installed in the machine room. A main rope is hung on the sheave constituting the hoist, 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. By rotating the sheave forward or backward by the prime mover, the car guided by the pair of car guide rails laid in the vertical direction is moved up and down.

  In an elevator having such a configuration, for example, when a building shakes due to a long-period seismic motion, a main rope hanging a car from the top of the building swings in the horizontal direction in the same direction as the building shakes (hereinafter, this horizontal swing). The run-out of the rope in the direction is called "lateral run-out."

  When the shaking due to the earthquake is detected, for example, the car is moved up and down to a predetermined evacuation floor, and in a state where the car is stopped at the evacuation floor, the operation is restarted after the horizontal swing of the main rope is sufficiently attenuated. Like that.

  However, since the frequency of long-period ground motions is often close to the natural frequency of a high-rise building, the building shakes greatly, which increases the amplitude of the horizontal swing of the main ropes. Lateral run-out does not easily converge, and it takes a lot of time to resume operation.

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

  The rope runout suppression device described in Patent Literature 1 is configured to include two rope runout suppression units. Each of the rope run-out suppression units has a branch portion (hereinafter, referred to as “main bar”) that is slightly perpendicular to the center of a bar slightly longer than the distance between the pair of car guide rails (hereinafter, referred to as “main bar”). (Referred to as "branch bar"). The steady bar is rotated by a driving device having one end mounted on one guide rail via a mounting arm. Patent Literature 1 states that, in normal times, the steady rest bar is held in an upright state away from the main rope, and when an elevator that detects an earthquake or strong wind stops, it is turned to a horizontal state by a driving device. (Claim 1 of Patent Document 1).

  In the horizontal bar, when the main rope swings toward the main bar, if the main rope abuts on the main bar, further deflection is suppressed, and the main rope swings toward the branch bar, Further swinging is suppressed by contacting the branch bar.

JP 2014-227291 A

  Incidentally, the deflection of the main rope due to an earthquake or the like poses a problem not only in the main rope portion suspending the car, but also in the main rope portion suspending the counterweight.

  In this case, in order to suppress the deflection of the main rope portion suspending the counterweight in at least one direction, it is necessary to install another rope deflection suppression unit described in Patent Document 1.

  SUMMARY OF THE INVENTION 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 of two rope portions in one direction with one unit.

  In order to achieve the above object, a rope runout suppressing unit according to the present invention includes 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 a second elevating body, a first balancing rope portion suspended from the first elevating body, and a second balancing portion suspended from the second elevating body A rope portion, installed in the hoistway in which the stowage is stored, a rope runout suppression unit for an elevator, a steady bar, and installed outside the hoistway of the first and second hoisting bodies, An actuator for rotating the steady rest bar, wherein the steady rest bar is rotated by the actuator to be switched between an upright standby state and a lying operating state, and in the operating state, the steady rest bar is , The first main rope portion A first rope portion, which is one of the rope portions of the first balancing rope portion, a second rope portion, which is one of the rope portions of the second main rope portion and the second balancing rope portion. It is characterized by lying on both sides of the rope part of the rope part.

  The steady rest bar is rotated by the actuator around a middle portion in the length direction thereof as a rotation center, and swings down when the upper portion above the middle portion 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 is placed on one side of the first and second rope parts. Lie, and the lower part lays on the other side.

  Further, 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 car, The second lifting body is a counterweight, the car is suspended at one end of the main rope wound around the sheave, and the counterweight is suspended at 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 cage A balance rope with a balance wheel hung at the lowermost end is suspended between the balance weight and the first balance rope portion, and the balance between the cage and the balance wheel is reduced. A mating rope portion, said second balancing 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 for first and second two elevators juxtaposed in the hoistway, and the first and second hoisting bodies are respectively The first and second elevators, or the first and second elevators are counterweights respectively constituting the first and second elevators, and 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.

  According to the rope runout suppression unit according to the present invention, the steady rest bar which is rotated by the actuator and is switched between the standing standby state and the lying operation state is configured to suspend the first elevating body in the operation state. A second main rope that suspends a first rope portion and a second lifting member that are either one of the main rope portion and the first balancing rope portion suspended from the first lifting member. The first and second rope portions, which are side portions of both the second rope portion, which is one of the rope portions of the second balancing rope portion suspended from the second lifting member, and the first and second rope portions. The one-way lateral vibration in which the rope portion of the rope swings toward the steady bar can be suppressed by one rope shake suppression unit.

It is a figure showing the schematic structure of the elevator which has the rope run-out control device including the rope run-out control unit concerning Embodiment 1. It is a figure showing an example of how to hang (roping) various ropes in the above-mentioned elevator. It is a conceptual diagram for explaining an example of arrangement of a plurality of ropes which constitute a main rope. (A) is a plan view showing a schematic configuration of the rope runout suppressing device, (b) is an exploded perspective view of the steady rest bar, and (c) is an enlarged cross-sectional view taken along line AA in (a). . (A) is a plan view of an actuator for rotating the steady rest bar and its vicinity, and (b) is a plan view of the actuator and a torque limiter or the like connecting the base end of the steady rest bar to the actuator. is there. (A) is the figure which looked at the waiting state of the steady rest bar at the time of normal operation of an elevator from the horizontal direction along the hoistway wall surface in which the steady rest bar was installed, and (b) (c) FIG. 3 is a view of the same standby state as viewed from a direction perpendicular to the hoistway wall surface. (A) is a plan view of a backup member provided in a hoistway and the vicinity thereof, and (b) is a view of the backup member viewed from a horizontal direction along a hoistway wall surface provided with the backup member. 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. It is a top view showing the schematic structure of the rope run-out control unit concerning a modification of Embodiment 2. It is the top view which showed the schematic structure of the rope runout suppression unit which concerns on Embodiment 3 in the operating state. FIG. 10 is a side view illustrating a schematic configuration of a rope shake suppression unit according to a third embodiment in a standby state. FIG. 12 is an enlarged view of a portion B in FIG. 11.

Hereinafter, an embodiment of a rope runout suppressing unit according to the present invention will be described with reference to the drawings.
<First embodiment>
FIG. 1 is a front view of a hoistway 12 in which an elevator 10 having a rope runout suppression device I, II, or III including a rope runout suppression unit according to Embodiment 1 is stored, as viewed from a landing (not shown) side. FIG. 2 is a right side view of the elevator 10. FIGS. 1 and 2 show the configuration of the rope runout suppressing devices I, II, and III because the main purpose is to explain the installation position in the vertical direction of the rope runout suppressing devices I, II, and III. Most of the elements have been omitted.

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

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

  Between the car 26 and the balancing weight 28, a balancing rope 32 composed of a plurality of ropes with a balancing wheel 30 mounted on the lowermost end is suspended. In the present example, the number of the plurality of ropes forming the main rope 24 and the number of the plurality of ropes forming the balancing rope 32 are the same (eight in the present example).

  In the hoistway 12, a pair of car guide rails 34, 36 and a pair of counterweight guide rails 38, 40 are laid vertically (all are 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 backward by the hoist motor (not shown), the main rope 24 wound around the sheave 22 travels and is suspended by the main rope 24. The basket 26 and the counterweight 28 move up and down in opposite directions. Along with this, the balancing rope 32 hung between the car 26 and the balancing weight 28 runs back on the balancing wheel 30.

  Here, as shown in FIG. 2, in the first embodiment, the main rope 24 that suspends the car 26 as the first main rope is referred to as a car-side main rope 24A, and is a second main rope. The portion of the main rope 24 that suspends the counterweight 28 will be referred to as a counterweight-side main rope portion 24B. Further, a portion of the balancing rope 32 (the portion of the balancing rope 32 between the car 26 and the balancing wheel 30) which is the first balancing rope portion and suspended from the car 26 is referred to as a car-side balancing rope portion 32A. And a balancing rope 32 portion (a balancing rope portion between the balancing weight 28 and the balancing wheel 30) suspended from the balancing weight 28, which is a second balancing rope portion, and a balancing weight side balancing rope. It is 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 length of the car-side balancing rope portion 32A occupying the balancing rope 32 and The length (range) of the balancing weight side balancing rope portion 32B expands and contracts (fluctuates) depending on the elevation position of the car 26 and the balancing weight 28.

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

  The upper part of FIG. 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 part of FIG. 3A is a view of the car 26 as viewed from above. is there. The lower diagram of FIG. 3A is a diagram illustrating the correspondence between the connection positions of the ropes M1 to M8 constituting the main rope 24 with respect to the car 26 in 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 viewed from the left side.

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

  In this way, when the ropes are connected in one row, the ropes M1 to M8 are divided into two rows due to the size (outer diameter) of a fastener (shackle rod) connecting the ends of the ropes M1 to M8 to the car 26. This is because the distance between the ropes M1 to M8 is larger than the distance between the ropes M1 to M8, which hinders effective use of the limited space above the car 26.

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

  The arrangement of the ropes M1 to M8 in the counterweight-side main rope portion 24B is basically the same as that of the above-described car-side main rope portion 24A. Also, with respect to the balancing rope 32, the only difference is whether the return position is the sheave 22 or the balancing wheel 30 (that is, only the up-down direction is reversed), and the car-side balancing rope portion 32A is provided. The arrangement of the plurality of ropes in the counterweight side balancing rope portion 32B is basically the same as 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 configuration is installed is a high-rise building, and the ascending and descending stroke of the elevator 10 is, for example, more than 100 m, main building that occurs when the building 14 shakes due to a long-period earthquake or strong wind. It is necessary to suppress the lateral runout of the rope 24 and the balancing rope 32 for the above-described reasons and the like.

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

  The lower end of the main rope 24 when the car 26 is landing on the first floor of the building 14 (the position at which the car 26 is connected to the car 26 by the stopper) is defined as a reference position S. The distance between the reference position S and the sheave 22 (the axis of the sheave) at this time is defined as D (D is the car side when the car 16 is landing on the first floor of the building 14). This is also substantially the entire length of the main rope portion 24A.)

  The rope sway suppressing device I is installed around the height H1 = (1/4) .D from the reference position S. The rope runout suppressing device II is installed at a height H2 = (() · D from the reference position S. The rope runout suppressing device III is installed around 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 24A (the balancing weight-side balancing rope portion 32B) becomes closest to the height of the building 14, and the building 14 The car-side main rope portion 24A (the counterweight-side balancing rope portion 32B) is liable to sway in synchronization with the roll of the vehicle.

  In this case, when the building 14 rolls in the primary mode, the car-side main rope portion 24A and the counterweight-side balancing rope portion 32B also roll in the primary mode, and the antinode of vibration (that is, the portion where the amplitude becomes maximum). ) Appears at about 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 nodes of vibration (that is, portions where the amplitude is minimum) are: Appears at about H2 and antinodes of vibration appear 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 roll in the secondary mode. is there.

  Therefore, in the case where the above-mentioned lateral runout becomes the largest, the rope runout suppressors I, II, and III are installed at positions where antinodes of vibration may occur, and the lateral runout is effectively suppressed. is there.

  However, depending on the position of the car 26 (landing floor), the main ropes 24 (car side main ropes 24A, fishing) appearing at the installation positions (heights 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) fluctuate.

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

In Table 1, symbols A, B, C, and D indicate the following car positions.
A: When the car 26 is at a position lower than the height H1 B: When the car 26 is between the heights H1 and H2 C: When the car 26 is between the heights H2 and H3 D: When the car 26 is at a position higher than the height H3

  In Table 1, “○” is marked on the rope portion appearing at each of the installation positions (H1 to H3) corresponding to the car positions (A to D).

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

  FIG. 4A shows a state where the car 26 is stopped at the position “C” or “B” in Table 1. In other words, a state is shown in which the car-side main rope portion 24A and the counterweight-side main rope portion 24B are subject to the steadying of the rope shake suppressing device III. 4 (a), the X axis is taken in the direction of the frontage of the car 26, and the Y axis is taken in the depth direction.

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

  In the rope runout suppressing units 100, 200, 300, and 400, a common number is assigned to the last two digits of the reference numerals indicating basically the same components, and details thereof are described in any one of the rope runout suppressing units 100, 200, 300, and 400. 200, 300, and 400, and description of the other rope runout suppression units 100, 200, 300, and 400 will be omitted. Further, regarding the rope runout suppression units 100, 200, 300, and 400, the same applies to the reference numerals assigned to the members for installing them in the hoistway 12.

  The rope runout suppression unit 100 has a steadying bar 102. The steady rest bar 102 includes a main body 104 and a cushioning 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 material such as urethane rubber or silicone rubber.

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

  The cushioning member 106 is fixed to (attached to) the main body 104 by bonding the flat surface to one side surface of the main body 104 with an adhesive (not shown). The attachment of the cushioning member 106 to the main body 104 is not limited to bonding, and a screw may be used.

The steady rest 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 of the steady rest 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 it is necessary to distinguish the four hoistway walls 42. Is to add alphabets A, B, C and D to the symbol "42". The actuator 108 is installed outside the lifting path of the counterweight 28 and the car 26.

  Returning to FIG. 5, the actuator 108 is a known spring return type actuator. That is, when power is supplied to the built-in motor (not shown) (that is, when the power is turned on), the power of the built-in motor causes the built-in spring (not shown) to be deformed and the output shaft 108A to rotate at a predetermined angle (90 in this example). The output shaft 108A is returned (returned) by the predetermined angle due to the restoring force of the built-in spring when the power is turned off by the degree.

  The steady rest bar 102 is connected to the output shaft 108A via a 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 as the original section.

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

  The main body 104 of the steady rest 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 the screw bolts are used for the shaft 112, the all screw bolts are inserted into through holes (not shown) formed in the main body 104, and the nuts (not shown) are fixed by tightening nuts (not shown) from the main body 104 to the protruding all screw bolts. It does not matter.

  During normal operation of the elevator 10, the power supply of the actuator 108 is turned off, and the action of the built-in spring (not shown) causes the steady rest bar 102 to move as shown by a solid line in FIG. It is held upright.

  When the power of the actuator 108 is turned on, the steady rest bar 102 is swung down from the standing standby state until the actuator 108 becomes a horizontal posture, and while the power is turned on, is indicated by a dashed line in FIG. Thus, the operating state lies in the hoistway 12.

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

  As described above, the steady rest bar 102 is rotated by the actuator 108, and is switched between the standing standby state and the lying operation state.

  In the operating state, as shown in FIG. 4A, the steady rest bar 102 lies beside the two rope portions (in the illustrated example, the car-side main rope portion 24A and the counterweight-side main rope portion 24B). Thereby, one rope runout suppression unit 100 causes a lateral runout (having a main displacement component in the X-axis direction in the illustrated example) in one direction of the car-side main rope portion 24A and the counterweight-side main rope portion 24B. It can be a target of the suppression. That is, when the car-side main rope portion 24A and the counterweight-side main rope portion 24B oscillate with a main displacement component in the X-axis direction, the car-side main rope portion 24A and the counterweight-side main rope portion 24B become Further, the vibration is prevented by contacting (colliding) with the steady rest bar 102 in the operating state. 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, part of the impact that the steady rest bar 102 receives 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 rest bar 102. It is received by the actuator 108 provided in the portion (base end).

  The rope run-out suppressing unit 100 has a backup member 116 so as to receive the impact even at the other end (front end) of the run-out bar 102.

  As shown in FIG. 7, the backup member 116 has an arm portion 116A and a support portion 116B provided at the tip of the arm portion 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. The arm portion and the support portion are not limited to those 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 is configured such that the base end portion of the arm portion 116A is rotated to stand along the hoistway wall 42A and stand by, as shown in FIG. The operating posture is switched to the operating posture indicated by the solid line, which has advanced to the side position of the tip end of the steady bar 102 in the hoistway 12. 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 rest 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 42A, and the backup member 116 is connected to the actuator 120 via a torque limiter 122. The actuator 120 is installed outside the lifting / lowering path of the counterweight 28 and the car 26 as shown in FIG.

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

  During normal operation of the elevator 10, the power supply of the actuator 120 is turned off, and the backup member 116 moves up and down by the action of a built-in spring (not shown) as shown by a dashed line in FIG. It is held in a standby posture standing up along the road wall 42A.

  When the power supply of the actuator 120 is turned on, the backup member 116 is swung down from the standing standby posture until the actuator 120 becomes a horizontal posture, and while the power supply is on, as shown by a solid line in FIG. Thus, the operating position is such that the support portion 116B has advanced to the side position of the steady rest 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 and is switched between the standby posture and the operating posture.

  In the operating posture, the backup member 116 attempts to be displaced in the horizontal direction due to the collision of the rope portion (the car-side main rope portion 24A and the counterweight-side main rope portion 24B in the example shown in FIG. 4A) that sways. 4A (in the illustrated example of FIG. 4A, the end portion of the steady bar 102 is to be displaced in the X-axis direction) is received by the support portion 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 backup member 116 is in a standby position retracted from the elevation path of the car 26, and it becomes necessary to support the steady rest bar 102. Sometimes switched to the above operating position. The reason why the backup member 216 is made movable is the same for the rope runout suppressing unit 200. Such advantages will be described later.

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

  The backup member 324 is located at a position opposite to the car-side main rope portion 24A at the tip of the steady rest bar 302 in the operating state as shown in FIG. 42A.

  As shown in FIG. 4C, the backup member 324 has a flat mountain shape at the top, and the top 324A receives the distal end of the steady bar 302 which is about to be displaced in the Y-axis direction. The upper slope 324B of the backup member 324 serves as a guide surface when the steady bar 302 swings to the right with respect to the sheet of FIG. 4C when the standby state is switched to the operating state. 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 right.

  4 (a) and 4 (c), the backup member 324 is drawn in contact with the steady rest bar 302 in the operating state, but there is actually a slight gap. It should be noted that a slight gap is formed between the steady rest bar 102 and the support portion 116B of the backup member 116 in the operating state. It is preferable that there is no gap in consideration of the impact received by the backup member 324 and the backup member 116 (the supporting portion 116B), but it is difficult to make a state without a gap (contact state) in reality. Even if there is a gap, as long as the gap is small, there is no problem in receiving the impact from the steady rest bar 102 and the steady rest bar 302.

  Not shown for detecting the amplitude of the lateral runout of the main rope 24 or the balancing rope 32 at the positions of the heights H1, H2, and H3 corresponding to each of the rope runout suppressors I, II, and III having the above configuration. Sensors are provided. The rope runout suppression device corresponding to the sensor that has detected the amplitude exceeding the predetermined threshold value is operated. The predetermined threshold value is a minimum amplitude enough to recognize that the main rope 24 or the balancing rope 32 has started to sway due to the shaking of the building 14 due to a long-period earthquake or a strong wind.

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

(I) The steady rest bars 102, 202 are switched from the standby state to the operating state.
(Ii) The backup members 116 and 216 are switched from the standby position to the operating position.
(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 performed in the reverse order or at the same time.

  After (iii) is completed and the state shown in FIG. 4A is reached, the suppression of the lateral run-out of the rope will be described using the car-side main rope portion 24A as an example. Hereinafter, in the description with reference to FIG. 4A, when referring to the left, right, up, and down directions (directions) toward the paper surface, the introductory description “to the paper surface” is omitted.

  When the car-side main rope portion 24A oscillates 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 oscillates independently. However, when there is no obstacle, the vehicle basically swings in the same manner. That is, while the arrangement shown in FIG.

  Lateral runout in the Y-axis direction is suppressed by the steady rest bar 302. When the car-side main rope portion 24A oscillates upward in the Y-axis direction and abuts against the steady rest 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 sways downward in the Y-axis direction, but the amount of displacement is limited to approximately the upward displacement. As a result, an increase in the lateral shake in the Y-axis direction can be suppressed. As has been acknowledged from the above description, in order to suppress the lateral deflection of the main rope 24 or the balancing rope 32 in one direction, basically, the main rope 24 or the balancing rope 32 is not moved in one direction. It is enough to lay the steady rest bar on one side.

  On the other hand, in order to suppress lateral deflection of the car-side main rope portion 24A in the X-axis direction, a pair of steady rest bars 102, 202 are provided on both sides of the car-side main rope portion 24A in the X-axis direction. . Regarding the reason for providing on both sides as described above, it is assumed that only the steady rest bar 102 is provided and the steady rest bar 202 is not provided, and an example in which the car side main rope portion 24A sways laterally along the X axis will be described. I do.

  The car-side main rope portion 24A deflects leftward along the X-axis. First, the rope M1 is displaced by a distance L1 and abuts against the steady rest bar 102, and then displaced rightward by a distance approximately twice as long as L1. Turn left again. Following the rope M1, the ropes M2, M3,..., M8 come into contact with the steady rest bar 102 one after another. (At this time, the ropes M1 to M8 are broken from the arrangement shown in FIG. 4A.)

  In this case, the rope M8 swings leftward and abuts on the anti-sway bar 102, and then is displaced rightward substantially twice as long as L8 and changes leftward again.

  At the height H3, the rope M1 sways at almost twice the amplitude of L1, and the rope M8 substantially swings while the building 14 continues to sway and the energy causing the vibration is applied to the main rope 24. It oscillates at twice the amplitude of L8. When the swing of the building 14 stops, the lateral swings of the ropes M1 and M8 gradually converge. However, due to the difference in amplitude at the initial stage of the convergence, the lateral swing of the rope M1 converges first, and it is greatly delayed. The horizontal deflection of the rope M8 converges. As a result, the time required for the convergence of the car-side main rope portion 24A increases. Therefore, another anti-sway bar 202 is provided opposite to the anti-sway bar 102, the convergence time of the horizontal swing 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 reduced. The shortening is made in comparison with the case where only the bar 102 is used.

  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 steady rest bars, and only one rope may be used in order to suppress lateral deflection in one direction. That is, even when the number of the steady rest bars is one, there is no great difference in the horizontal distance from each of the plurality of ropes constituting the main rope and the balancing rope to the steady rest bar.

  As described above, when the rope M1 sways along the X axis, that is, when the rope M1 sways in a direction orthogonal to the steady bar 102, the rope M1 displaced to the left abuts on the steady bar 102. After that, it is displaced rightward by a distance approximately twice as large as the distance L1 (that is, the amplitude at this time is twice as large as L1).

  It is assumed that the rope M1 sways obliquely with respect to the steady rest bar 102 and that the steady rest 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 abutting (collision) with the main body 104, the rope M1 slides along the main body 104 as compared with a case where the rope M1 swings in a direction orthogonal to the main body 104. However, the effect of suppressing vibration is reduced.

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. Accordingly, even if the rope M1 abuts (collides) with the anti-sway bar 102 at an angle, the rope M1 fits into any one of the recesses (in this example, a valley of a wave), and further extends 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 slippage occurs.
As can be seen from the above description, the concavo-convex shape has such a shape that each of the concave portions has a size to fit each of the ropes M1 to M8.

  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 suppression unit 300 (sway-prevention bar 302) causes the rope sway suppression device III to sway in the X-axis direction. The horizontal run-out is suppressed by the rope run-out suppression unit 100 (sway-prevention bar 102) and the rope run-out suppression unit 200 (sway-prevention bar 202).

  Here, as can be seen from FIG. 4 (a), in the steady rest bar 302 of the rope steadying unit 300, the car side main rope portion 24A abuts on the left side from the intersection (solid intersection) with the steady rest bar 102. Therefore, the portion on the left side is unnecessary from the viewpoint of suppressing the lateral deflection of the car-side main rope portion 24A. That is, the steady rest bar 302 is longer than necessary. This is because the backup member 324 that supports the distal end of the steady rest bar 302 is fixed, so that it is necessary to extend the distal end from the base end to the hoistway wall 42A where the backup member 324 is installed. is there.

  On the other hand, the anti-sway bar 102 of the rope anti-sway unit 100 is long enough to suppress the lateral deflection of the car-side main rope portion 24A in the X-axis direction, and is not unnecessarily long. This is because the backup member 116 that supports the tip of the steady rest bar 102 is made movable. In other words, the base end of the arm portion 116A of the backup member 116 is rotated to move the support portion 116B to the side position of the distal end portion of the steady rest bar 102 in the operating state. This is because the tip does not need to be extended to the hoistway wall 42B.

  As described above, by making the backup member movable, the anti-sway bar can be shortened as compared with the case where the backup member is fixed. As a result, the torque required for rotating the steady rest bar at its base end is reduced, and the actuator for rotating the steady rest bar can be reduced in size.

  When the steady rest bars 102, 202, 302, and 402 are in the operating state and the backup members 116 and 216 are in the operating posture, the magnitude of the lateral runout of the car-side main rope portion 24A and the counterweight-side main rope portion 24B. When the distance falls within the predetermined threshold value, the steady rest bars 102, 202, 302, and 402 are switched to the standby state, and the backup members 116 and 216 are switched to the standby position, respectively, and then the operation of the elevator 10 is restarted. The switching order is the reverse of the above (i), (ii), and (iii), and is as follows.

(iv) The steady rest bars 302 and 402 are switched to a 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 performed in the reverse order or at the same time.

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

  Therefore, for example, when a short-period ground motion that does not need to operate the rope run-out suppression units 100, 200, 300, and 400 occurs because it is not a long-period ground motion, the steady rest bars 102, 202, 302, and 402 in the standby state. May swing like an inverted pendulum. Since the anti-sway bars 102, 202, 302, and 402 are installed in the narrow hoistway 12, the tip of the anti-sway bar 102 enters the hoisting path of the car 26 or the counterweight 28, which is a hoisting body, even with a slight shaking. Would.

  When the elevator 10 is operated in this state, the car 26 or the counterweight 28 collides with the steady rest bars 102, 202, 302, 402, and the steady rest 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 rest bars 102, 202, 302, and 402 from accidentally entering the elevating route of the car 26 or the counterweight 28.

  Regarding the blocking device, the blocking device 126 included in the rope runout suppression unit 100 will be described as a representative, and the description and illustration of the blocking device provided in the rope runout suppression units 200, 300, and 400 will be omitted.

  As shown in FIG. 6, a known electromagnetic actuator 126 is used for the shutoff 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 driving unit that moves the plunger 128 forward and backward. The electromagnetic actuator 126 is attached to the shaft wall 42D via the bracket 132.

  When the solenoid is energized, the plunger 128 is retracted from the state shown in FIG. 6B to the frame 130 side as shown in FIG. ) And the state shown in FIG. 6B.

  While the solenoid (not shown) is not energized, the plunger 128 is swung from the standby state to the operating state between the base end and the tip of the steady rest bar 102 (in this example, it is swung down). The vehicle enters a state ahead of the course. This prevents the steady rest bar 102 from inadvertently entering the elevating route of the car 26 or the counterweight 28 in the standby state. Immediately before switching the steady rest bar 102 from the standby state to the operating state, the solenoid is energized. As a result, the plunger 128 retreats from the course, and the front of the course is opened.

  The electromagnetic actuator 126 can prevent the steady rest bar 102 in the standby state from unexpectedly entering the raising / lowering path of the car 26 or the counterweight 28. However, when switching from the operating state to the standby state, a malfunction of the actuator 108 is caused. For example, it is assumed that the steady rest bar 102 remains in the elevating route of the counterweight 28 and the car 26. When the operation of the elevator 10 is restarted in a state where the emergency occurs, the car 26 or the counterweight 28 collides with the steady rest bar 102, and the steady rest bar 102 is damaged.

  Therefore, in order to prevent breakage of the steady rest bar 102 as much as possible, the steady rest 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 a torque that is equal to or less than a preset breaking torque, and blocks transmission of a torque that exceeds the breaking torque. The shut-off torque is an over-torque that exceeds the torque required for the actuator 108 to rotate the steady rest bar 102 around the axis of the output shaft 108A due to the vertical external force acting on the steady rest bar 102 in the operating state. The size is set so as to block the transmission of the overtorque to the output shaft 108A when it occurs.

  As a result, even if the car 26 or the counterweight 28 collides with the steady rest bar 102 that has remained in the elevating route, the (the output shaft 108A of) the actuator 108 attached to the hoistway wall 42D. Since the steady rest bar 102 idles, the impact force received from the car 26 and the counterweight 28 is reduced. As a result, breakage of the steady rest bar 102 is prevented as much as possible.

  Further, as described with reference to FIG. 7, the backup member 116 (the supporting portion 116B) supports the steady rest bar 102 from the side of the steady rest bar 102 in the operating state (that is, the backup member 116 is Even in the operating posture, the up-and-down direction of the steady rest bar 102 is open), so that the idle rotation is not hindered.

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

  Due to the difference in the installation position, a rope portion that may be a steady rest in the main rope 24 or the balancing rope 32 differs as shown in Table 1. In other words, the target rope portion which is located on the side of the operating steady rest bar and is the subject of steady rest differs.

  Further, as is apparent from FIG. 4A, the target rope portion 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 swing suppression unit 300 is the car side main rope portion 24A or the car side balancing rope portion 32A, and the rope swing suppression unit 400 is the balancing weight side main rope portion 24B or the balancing weight side balancing rope portion 32B. Becomes

  Further, depending on the installation position (which one of the rope run-out suppressing devices I, II, and III is configured) and the vertical position of the car 26, only the combinations shown in Table 1 can be used for the run-out prevention units. Becomes That is, in the operating state, the steady rest bars 102 and 202 are connected to either one of the car-side main rope portion 24A and the car-side balancing rope portion 32A, and the counterweight side main rope portion 24B and the counterweight side. Lying on both sides of either one of the balancing rope portions 32B, the both rope portions are subjected to steady rest.

  In the above example, as shown in FIG. 6, in the standby state, the steady rest bar 102 is in an upright state in which the base end, which is the center of rotation, is directed downward and the distal end is directed upward, and the operating state is changed. When switching to the state, the steady rest bar 102 is swung down. However, the present invention is not limited to this. In the standby state, the base end is set to the upright state with the top end to the lower side, and when switching to the operating state, the steady rest is set to the steady state. The bar may be swung up.

<Embodiment 2>
The steady rest suppressing units 100 and 200 according to the first embodiment swing the base ends of the steady rest bars 102 and 202 and swing out from the standby state. For example, as shown in FIG. The portion 24A and the counterweight side main rope portion 24B are laid on the sides of two rope portions.

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

  In the rope runout suppression device IV according to the second embodiment shown in FIG. 8, the rope runout suppression units 500 and 600 are replaced with the rope runout suppression units 100 and 200 (FIG. 4A) of the rope runout suppression devices I, II, and III. Was provided. 8, illustration of the rope run-out suppression units 300 and 400 (FIG. 4A) is omitted. In addition, the same reference numerals are given to the same components as those of the elevator 10 in the first embodiment, and the description thereof will be omitted as needed. In FIG. 8, the X axis and the Y axis are defined similarly to FIG. 4A.

  Since the rope runout suppression unit 500 and the rope runout suppression unit 600 have basically the same configuration, the rope runout suppression unit 500 will be described as a representative, and the lower two parts of the members constituting the rope runout suppression unit 600 will be described. The digits are given the same numbers as the last two digits of the reference numerals assigned to the corresponding components in the rope runout suppression unit 500, and description thereof is omitted.

  The rope runout suppressing unit 500 has a steadying bar 502 including a main body 504 and a cushioning member 506, similarly to the rope runout suppressing 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 of 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 rest bar 502 is connected to the actuator 508 via the same type of torque limiter 510 as the torque limiter 110 (FIG. 5). A flanged shaft (not shown), which is a follower of the torque limiter 510, is provided 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 longitudinal direction. Here, in the steady bar 502, one side in the length direction is referred to as a first steady portion 502A and the other side is referred to as a second steady portion 502B with respect to the middle portion 502C as shown in FIG. I do.

  In the rope run-out suppressing unit 500 having the above-described configuration, the upper portion of the steady rest bar 502 (not shown) in the standing standby state becomes the first steady rest portion 502A above the middle portion 502C and the lower portion than the middle portion 502C. Are the second steady rest portions 502B.

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

  As described above, by rotating the intermediate portion of the steady rest bar 502, the torque required for the swing is reduced as compared with the case of the steady rest bar 102 rotating one end (base end). . As a result, the size of the actuator used for rotation can be reduced.

  In the above example, in the standby state, the first steady rest portion 502A is set to the upper side, the second steady rest portion 502B is set to the lower side, and when switching to the operating state, the first steady rest portion 502A is swung down, and the second steady rest portion 502A is lowered. Although the configuration is such that the part 502B is swung up, the configuration may be reversed. That is, in the standby state, the first steady rest portion 502A is in a standing state in which the first steady rest portion 502A is on the lower side and the second steady rest portion 502B is on the upper side, and when switching to the operating state, the first steady rest portion 502A is swung up and the second steady rest portion 502B is raised. May be configured to swing down.

(Modification)
FIG. 9 shows rope runout suppression units 700 and 800 according to a modified example of the above-described rope runout suppression units 500 and 600. In FIG. 9, substantially the same components as those shown in FIG. 8 are denoted by the same reference numerals, and description thereof will not be repeated as necessary. Further, since the rope runout suppression unit 700 and the rope runout suppression unit 800 are basically the same configuration, the rope runout suppression unit 700 will be described as a representative, and the description of the rope runout suppression unit 800 will be omitted.

  As shown in FIG. 9, the tip portion of the first steady portion 702A of the steady rest bar 702 constituting the rope steadying unit 700 is a rope portion to be rested (in the present example, the car-side main rope portion 24A). ), In the direction parallel to the X-axis, it is inclined away from it. This inclined portion is referred to as an inclined portion 702D. Further, with respect to the steady rest bar 702, the right side is referred to as "inside" and the left side is referred to as "outside" when viewed in the drawing.

  When the car-side main rope portion 24A causes a lateral shake in the X-axis direction and the amplitude reaches the predetermined threshold value as described above, the first steady portion 702A of the steady bar 702 is in the standing standby state ( (Not shown). In this case, if the amplitude of the horizontal run-out increases faster than the assumed speed, or if the swing-down timing is delayed for some reason, if the basket has a straight shape like the steady rest bar 502 (FIG. 8), There is a possibility that the side main rope portion 24A may turn around the outside of the steady rest bar. Therefore, by providing the inclined portion 702D, when the steady rest bar 702 is swung down, the car-side main rope portion 24A when the tip of the first steady rest portion 702A passes right beside the car-side main rope portion 24A. Therefore, the car-side main rope portion 24A is securely stopped inside the anti-sway bar 702 by increasing the distance in the X-axis direction. Note that the anti-sway bars 102, 202, 302, and 402 (FIG. 4A) may be provided with inclined portions.

<Embodiment 3>
In the first and second embodiments, each of 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) Lateral run-out of two rope sections in one elevator was suppressed by one steady-stop bar. On the other hand, the rope runout suppression unit according to the third embodiment includes a lateral runout of one rope portion of one elevator and a horizontal runout of one rope portion of the other elevator in two elevators arranged side by side in the hoistway. Is suppressed by a single steady rest bar.

  As shown in FIG. 10, the rope runout suppression unit 900 according to the third embodiment is used for a first elevator 1000 and a second elevator 2000 arranged in parallel in a hoistway 52. The first elevator 1000 and the second elevator 2000 have basically the same configuration as the elevator 10 (FIG. 4). Therefore, as the reference numerals indicating the components common to the elevator 10, the first elevator 1000 uses the thousands, and the second elevator 2000 uses the numbers of the 2,000s. Corresponding numerals will be used, and the corresponding components will not be referred to when necessary. Also in FIG. 10, the X axis and the Y axis are defined as in FIG. In addition, illustration of the rope runout suppression units 100 and 200 (FIG. 4) for suppressing the lateral runout in the X-axis direction is omitted.

  The rope runout suppression unit 900 has a steadying bar 902. The steady rest bar 902 has a main body 904 and buffer members 906A and 906B separately mounted at two locations in the longitudinal direction of the main body 904. The main body 904 is basically the same as the main body 104 of the steady rest bar 102 (FIG. 4B) except for the length, and the buffer members 906A and 906B have the same configuration as the buffer member 106, respectively.

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

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

  However, in the rope runout suppressing unit 100, as shown in FIG. 5A, only one end of the shaft 112 is supported. However, the shaft 112 with a flange in the rope runout unit 900 (hereinafter, simply referred to as "shaft"). 912 ") are 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. The bearing member 946 is attached, and the distal end portion of the shaft 912 is supported by the bearing member 946.

  When two elevators are arranged side by side on the same hoistway 52 as in this example, a certain interval is provided in the vertical direction of the hoistway, and the elevator is inserted between the hoistway wall 52D and the hoistway wall 52B. A not-shown intermediate beam (also referred to as a separator beam) is provided. The mounting beams 940 and 944 are provided between two vertically adjacent intermediate beams so as to overlap with 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.

  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 run-out suppressing unit 900 having the above-described configuration and installed as described above, the swing-back bar 902 is turned from the standby state shown in FIG. 11 to the operating state shown in FIG. When the switch is switched, the steady rest bar 902 is a first main rope portion to be rested, a car-side main rope portion 1024A that suspends the car 1026 in the first elevator 1000, and the second steady rope to be rested. Lie on both sides of the car-side main rope portion 2024A which suspends the car 2026 in the second elevator 2000. This makes it possible to 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 with the single steady rest bar 902.

  A Y-axis in which a first main rope portion to be subjected to steady rest is defined as a counterweight-side main rope portion 1024B, and a second main rope portion to be subjected to steady rest is defined as a counterweight-side main rope portion 2024B. In order to suppress the lateral deflection in the direction, a rope deflection suppression unit similar to the rope deflection suppression unit 900 may be installed.

  Needless to say, the installation position (one of the heights H1, H2, and H3 (FIG. 2)) of the rope shake 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 the lateral shake are different.

  INDUSTRIAL APPLICABILITY The rope runout suppressing unit according to the present invention can be suitably used, for example, as a device that suppresses a horizontal runout of a main rope and a balancing rope in an elevator installed in a high-rise building and having a long ascending and descending stroke.

10, 1000, 2000 Elevator 24 Main rope 26, 1026, 2026 Car 28, 1028, 2028 Balancing weight 32 Balancing rope 100, 200, 500, 600, 700, 800, 900 Rope deflection suppression unit 102, 202, 502, 602, 702, 802, 902 Steady 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, An elevator installed in a hoistway in which a first balancing rope portion hung from one lifting body and a second balancing rope portion hung from the second lifting body are stored. Rope runout suppression unit,
A steady bar,
An actuator installed outside the elevating path of the first and second elevating bodies and rotating the steady rest bar;
Has,
The steady rest bar is rotated by the actuator, and is switched between an upright standby state and a lying operation state,
In the operating state, the steady rest bar includes a first rope portion that is one of the first main rope portion and the first balancing rope portion, the second main rope portion, and the second rope portion. is one of the rope portion of the second balance rope portion Ri Yokotawa on the side of both the rope portion of the second rope portion,
The steady rest bar is rotated by the actuator about a rotation center at an intermediate portion in its length direction, and is swung down when an upper portion above the intermediate portion is switched to the operating state in the standby state, In the standby state, the lower portion below the intermediate portion is swung up when switching to the operating state, and in the operating state, the upper portion lies on one side of the first and second rope portions. , features and to Carlo-loop pendulum damping unit the lower portion to lie 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 lifting body is a car, the second lifting body is a counterweight, and the car is suspended at one end of a main rope wound around the sheave, and at the other end. The counterweight is suspended, 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 that suspends the counterweight. Along with the main rope,
Between the car and the counterweight, a balancing rope with a balancing wheel hung at the lowermost end is suspended, and the first balancing rope portion is located between the basket and the balancing wheel. The rope according to claim 1 , wherein the balance rope portion is the balance rope portion between the counterweight and the balance wheel. Runout suppression unit. 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, An elevator installed in a hoistway in which a first balancing rope portion hung from one lifting body and a second balancing rope portion hung from the second lifting body are stored. Rope runout suppression unit,
A steady bar,
An actuator installed outside the elevating path of the first and second elevating bodies and rotating the steady rest bar;
Has,
The steady rest bar is rotated by the actuator, and is switched between an upright standby state and a lying operation state,
In the operating state, the steady rest bar includes a first rope portion, which is one of the first main rope portion and the first balancing rope portion, the second main rope portion, and the second main rope portion. A rope runout suppression unit configured to lie on both sides of both rope portions of the second rope portion, which is one of the two rope portions of the balancing rope portion ,
The rope deflection suppression unit, I rope pendulum damping unit der used in the first and second of the two elevators are arranged in parallel in the hoistway,
The first and second elevators are cars constituting the first and second elevators, respectively, or the first and second elevators are the first and second elevators respectively. counterweight der that make up the is,
Said actuator, said in the hoistway, said first elevator installation region and the second elevator features and to Carlo-loop pendulum damping unit that is provided on the boundary of the installation region of. The steady rest bar is rotated by the actuator about a rotation center at an intermediate portion in its length direction, and is swung down when an upper portion above the intermediate portion is switched to the operating state in the standby state, In the standby state, the lower portion below the intermediate portion is swung up when switching to the operating state, and in the operating state, the upper portion lies on one side of the first and second rope portions. 4. The rope runout suppression unit according to claim 3 , wherein the lower portion lies on the other side.

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