WO2015145738A1

WO2015145738A1 - Counterweight device for elevator, and method for modifying same

Info

Publication number: WO2015145738A1
Application number: PCT/JP2014/059180
Authority: WO
Inventors: 晃一本村; 良直高橋; 宮原　英樹
Original assignee: 三菱電機株式会社
Priority date: 2014-03-28
Filing date: 2014-03-28
Publication date: 2015-10-01

Abstract

A counterweight device for an elevator is configured in such a manner that a counterweight frame has a frame body including: a pair of suspension frames (23); an upper frame (24) connected between the suspension frames; and a lower frame (25) connected to the suspension frames at a position below the upper frame. A pair of upper guide shoes (26) is mounted to the upper end of the counterweight frame. A pair of lower guide shoes (27) is mounted to the lower end of the counterweight frame. Intermediate guide shoes (28) in contact with corresponding counterweight guide rails are mounted to both sides, in the width direction, of the vertically intermediate section of the counterweight frame.

Description

Elevator counterweight device and repair method thereof

The present invention relates to an elevator balancing weight device in which a plurality of loading weights are loaded in a frame body, and a method of repairing a balancing weight device that increases the strength of a suspension frame by diverting an existing balancing weight device. It is.

In a conventional elevator weight device, a plurality of weights are stacked in a frame. The frame includes a pair of hanging frames having a U-shaped cross section, an upper frame fixed between upper ends of the hanging frames, and a lower frame fixed between lower ends of the hanging frames. A plate-like stopper is fixed to an intermediate portion in the vertical direction of each suspension frame. The stopper is opposed to the counterweight guide rail via a gap. Moreover, a stopper disperse | distributes the force added to the counterweight guide rail at the time of an earthquake occurrence (for example, refer patent document 1).

In another conventional counterweight device, one or more frame bodies are attached between the upper beam and the lower beam. A plurality of loading weights are mounted on each frame (see, for example, Patent Document 2).

JP 2000-21850 A Japanese Patent Laid-Open No. 10-250959 (FIG. 8)

The stopper of the conventional counterweight device shown in Patent Document 1 is opposed to the counterweight guide rail via a gap, so that the suspension frame is deflected by a horizontal seismic force when an earthquake occurs. Cannot fully reinforce the suspension frame. For this reason, in a newly installed elevator, when it becomes necessary to increase the seismic strength (particularly the strength against horizontal seismic force) of the suspension frame, the size of the suspension frame is increased. However, in this case, since the existing loading weight cannot be applied, it is necessary to change the size or shape of the loading weight so as to fit the new hanging frame, and the product cost increases. In some cases, it is necessary to increase the plane dimension of the hoistway.

Also in the conventional counterweight device shown in Patent Document 2, when it is required to increase the seismic strength of the suspension frame of each frame body and the seismic strength of the connecting portion of the frame body, the suspension frame and the connection member The same problem as in Patent Document 1 occurs.

In addition, when it is required to increase the seismic strength of the suspension frame when repairing an existing elevator, the method of increasing the size of the suspension frame cannot divert the existing counterweight device. The entire weighting device needs to be replaced, resulting in a longer repair period. Specifically, when replacing the counterweight device, the main rope must be disconnected from the counterweight device with the car fixed to the upper part of the hoistway and the counterweight device supported at the lower part of the hoistway. The repair period may be about 3 days longer.

The present invention has been made in order to solve the above-described problems, and an elevator counterweight device capable of increasing the seismic strength of the counterweight frame while suppressing an increase in cost and a method for repairing the same. The purpose is to obtain.

An elevator counterweight device according to the present invention includes a pair of suspension frames, an upper frame connected between the suspension frames, and a lower frame connected between the suspension frames below the upper frame. A pair of counterweights, a plurality of weights held in the frame, and a pair of counterweights that are attached to both sides of the upper end of the counterweight frame in contact with the corresponding counterweight guide rail. A pair of lower guide shoes that are attached to both sides in the width direction of the lower end portion of the upper weight guide frame and the counterweight frame, and a width direction of an intermediate portion in the vertical direction of the counterweight frame. A plurality of intermediate guide shoes that are attached to both sides and are in contact with the corresponding counterweight guide rails are provided.
In addition, an elevator weight device according to the present invention is disposed between two or more frames connected in the vertical direction and the frames adjacent in the vertical direction, and at least one connecting the frames. A counterweight frame having a plurality of connecting members, and a plurality of loading weights held in the frame body, and a rope stopper member is fixed to a lower end portion of the counterweight frame. The stop member is provided with a coupler coupling portion to which a suspension coupler connected to a suspension body for suspending the counterweight frame is coupled, and the coupler coupling portion is horizontally outward from the counterweight frame. Protruding to
Furthermore, the method of repairing an elevator counterweight device according to the present invention includes a counterweight frame with an existing counterweight device connected to a suspension for suspending the car and the counterweight device. The seismic strength of the counterweight frame is increased by attaching a plurality of intermediate guide shoes on both sides in the width direction of the intermediate portion in the vertical direction so as to contact the corresponding counterweight guide rails.

The elevator counterweight device and the repair method thereof according to the present invention can increase the seismic strength of the counterweight frame while suppressing an increase in cost.

1 is a side view showing an elevator according to Embodiment 1 of the present invention. FIG. 2 is a partially exploded perspective view showing the counterweight device of FIG. 1. It is a top view which shows a contact state with the counterweight guide rail of the intermediate | middle guide shoe of FIG. It is a disassembled perspective view which shows the principal part of the counterweight apparatus by Embodiment 2 of this invention. It is a disassembled perspective view which shows the principal part of the counterweight apparatus by Embodiment 3 of this invention. It is a top view which shows the contact state with the counterweight guide rail of the intermediate | middle guide shoe of FIG. It is a disassembled perspective view which shows the principal part of the counterweight apparatus by Embodiment 4 of this invention. It is a top view which shows the contact state with the counterweight guide rail of the intermediate | middle guide shoe of FIG. It is a disassembled perspective view which shows the principal part of the counterweight apparatus by Embodiment 5 of this invention. FIG. 10 is a plan view showing a contact state of the intermediate guide shoe of FIG. 9 with a counterweight guide rail. It is a top view which shows the intermediate | middle guide shoe of the counterweight apparatus by Embodiment 6 of this invention. It is a front view which shows the intermediate | middle guide shoe of FIG. It is a side view which shows the intermediate | middle guide shoe of FIG. FIG. 13 is a cross-sectional view taken along line XIV-XIV in FIG. 12. FIG. 10 is a plan view showing a modification in which a vibration isolating member is interposed between the intermediate guide shoe and the counterweight frame according to the third embodiment. FIG. 16 is a front view showing the intermediate guide shoe of FIG. 15. It is a side view which shows the intermediate | middle guide shoe of FIG. FIG. 10 is a plan view showing a modification in which a vibration isolating member is interposed between the intermediate guide shoe and the counterweight frame according to the fourth embodiment. It is a front view which shows the intermediate | middle guide shoe of FIG. FIG. 20 is a side view showing the intermediate guide shoe of FIG. 19. FIG. 10 is a plan view showing a modification in which a vibration isolating member is interposed between the intermediate guide shoe and the counterweight frame of the fifth embodiment. It is a front view which shows the intermediate | middle guide shoe of FIG. It is a side view which shows the intermediate | middle guide shoe of FIG. It is a perspective view which shows the counterweight apparatus by Embodiment 7 of this invention. It is a principal part front view which shows the 1st modification of the connection member of FIG. It is a principal part perspective view which shows the 2nd modification of the connection member of FIG. FIG. 25 is a perspective view of relevant parts showing a modification in which the intermediate guide shoe of the fourth embodiment is fixed to the connecting member of FIG. 24. It is a front view which shows the counterweight apparatus by Embodiment 8 of this invention. It is a side view which shows the counterweight apparatus of FIG. FIG. 29 is a cross-sectional view taken along line XXX-XXX in FIG. 28. FIG. 30 is a side view showing a modified example of the rope stopping member of FIG. 29.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a side view showing an elevator according to Embodiment 1 of the present invention. In the figure, a machine room 2 is provided in the upper part of the hoistway 1. A machine table 3 is installed in the machine room 2. A hoisting machine 4 is supported on the machine base 3. The hoisting machine 4 has a drive sheave 5 and a hoisting machine main body 6. The hoisting machine main body 6 includes a hoisting machine motor that rotates the driving sheave 5 and a hoisting machine brake that brakes the rotation of the driving sheave 5.

A baffle 7 is attached to the machine base 3. A plurality of suspension bodies 8 are wound around the drive sheave 5 and the deflecting wheel 7. As the suspension body 8, for example, a rope or a belt is used.

A car 9 is connected to the first end of the suspension body 8. A counterweight device 10 is connected to the second end of the suspension 8. The car 9 and the counterweight device 10 are suspended in the hoistway 1 by the suspension body 8 and are moved up and down in the hoistway 1 by the driving force of the hoisting machine 4.

In the hoistway 1, a pair of car guide rails 11 that guide the raising and lowering of the car 9 and a pair of counterweight guide rails 12 that guide the raising and lowering of the counterweight apparatus 10 are installed.

The car 9 has a car frame 13 to which the suspension body 8 is connected and a car room 14 supported by the car frame 13.

FIG. 2 is a partially exploded perspective view showing the counterweight device 10 of FIG. The counterweight frame of the first embodiment is composed of a single metal frame 21. A plurality of loading weights 22 are stacked and held in the frame body 21.

The frame body 21 has a pair of hanging frames (vertical frames) 23 arranged vertically on both sides in the width direction of the counterweight device 10 and an upper frame having a U-shaped cross section connected between the upper ends of the hanging frames 23. 24 and a lower frame 25 having a U-shaped cross section connected between the lower ends of the suspension frame 23.

The upper frame 24 and the lower frame 25 are arranged horizontally. The suspension body 8 is connected to the upper frame 24 via a plurality of suspension body couplers (rope hitches) (not shown). The lower frame 25 is disposed below the upper frame 24 and supports the loading weight 22.

A pair of upper guide shoes 26 that are in contact with the corresponding counterweight guide rails 12 are attached to both sides of the frame body 21, that is, the upper end of the counterweight frame in the width direction. The upper guide shoe 26 is attached to both ends in the longitudinal direction of the upper frame 24.

A pair of lower guide shoes 27 that are in contact with the corresponding counterweight guide rails 12 are attached to both sides in the width direction of the lower end portion of the frame body 21. The lower guide shoe 27 is attached to both ends in the longitudinal direction of the lower frame 25.

A plurality (a pair in this example) of intermediate guide shoes 28 that are in contact with the corresponding counterweight guide rails 12 are attached to both sides in the width direction of the intermediate portion in the vertical direction of the frame body 21. Each intermediate guide shoe 28 is fixed to a plate-shaped fixing bracket 29.

Each fixing bracket 29 is fixed to the suspension frame 23 by a plurality of fasteners 30. For example, a bolt is used as the fastener 30. One or two or more flat spacers 31 are interposed between the fixing bracket 29 and the suspension frame 23.

In the first embodiment, as the guide shoes 26, 27, and 28, a sliding guide shoe made of a resin having high wear resistance is used. Further, the guide shoes 26, 27, and 28 always contact the corresponding counterweight guide rails 12 when the counterweight device 10 is raised and lowered to guide the raising and lowering of the counterweight device 10. Further, a groove into which the tip end portion of the corresponding counterweight guide rail 12 is inserted is provided at the center in the width direction of each

guide shoe

26, 27, 28.

FIG. 3 is a plan view showing a contact state of the intermediate guide shoe 28 of FIG. 2 with the counterweight guide rail 12, and corresponds to a cross-sectional view taken along the line III-III of FIG. The intermediate guide shoe 28 is in proper contact with the counterweight guide rail 12 by adjusting the number of spacers 31.

In such a counterweight device 10, the intermediate guide shoe 28 that is in contact with the counterweight guide rail 12 is disposed between the upper guide shoe 26 and the lower guide shoe 27, so that a suspension frame for the counterweight guide rail 12 is provided. 23 support span is reduced. For this reason, the suspension frame 23 can be sufficiently reinforced with the size of the existing suspension frame 23 with respect to the bending of the suspension frame 23 due to the horizontal seismic force at the time of the earthquake occurrence, and fishing can be suppressed while suppressing an increase in cost. The seismic strength of the weight frame can be increased.

Also, the stress generated in the counterweight guide rail 12 by the horizontal seismic force can be dispersed.

Embodiment 2. FIG.
Next, FIG. 4 is an exploded perspective view showing a main part of a counterweight device according to Embodiment 2 of the present invention. In the first embodiment, one intermediate guide shoe 28 is disposed on each side in the width direction of the counterweight frame. In contrast, in the second embodiment, two intermediate guide shoes 28 are attached to each suspension frame 23. Other configurations are the same as those in the first embodiment.

Thus, for example, when the vertical dimension of the counterweight frame is large, two intermediate guide shoes 28 may be attached to each suspension frame 23.

In addition, three or more intermediate guide shoes may be arranged on both sides in the width direction of the counterweight frame. Also in the following embodiments, two or more intermediate guide shoes may be arranged on both sides in the width direction of the counterweight frame.

Embodiment 3 FIG.
Next, FIG. 5 is an exploded perspective view showing a main part of a counterweight device according to Embodiment 3 of the present invention. In the first embodiment, the intermediate guide shoe 28 having a U-shaped cross section is used. However, in the third embodiment, a flat intermediate guide shoe 32 is used. The intermediate guide shoe 32 is always in contact with the corresponding counterweight guide rail 12 when the counterweight device is raised or lowered.

6 is a plan view showing a contact state of the intermediate guide shoe 32 of FIG. 5 with the counterweight guide rail 12, and corresponds to a cross-sectional view taken along the line VI-VI of FIG. The intermediate guide shoe 32 is in proper contact with the front end surface of the counterweight guide rail 12 by adjusting the number of spacers 31. Other configurations are the same as those in the first or second embodiment.

By using such an intermediate guide shoe 32, the suspension frame remains in the size of the existing suspension frame 23 with respect to the deflection of the suspension frame 23 in the width direction of the counterweight frame due to the horizontal seismic force at the time of the earthquake. 23 can be sufficiently reinforced, and the seismic strength of the counterweight frame can be increased while suppressing an increase in cost.

Further, as compared with the first embodiment, the structure of the intermediate guide shoe 32 can be simplified, and the cost can be reduced.

Embodiment 4 FIG.
Next, FIG. 7 is an exploded perspective view showing a main part of a counterweight device according to Embodiment 4 of the present invention. Each intermediate guide shoe 33 of the fourth embodiment has a roller 34. That is, the intermediate guide shoe 33 is a roller guide shoe. The roller 34 is rotatable about a rotation axis that is parallel and horizontal to the front-rear direction of the counterweight frame.

FIG. 8 is a plan view showing a contact state of the intermediate guide shoe 33 of FIG. 7 with the counterweight guide rail 12, and corresponds to a cross-sectional view taken along the line VIII-VIII of FIG. Moreover, the fastener 30 is abbreviate | omitted in FIG.

The roller 34 is in proper contact with the front end surface of the counterweight guide rail 12 by adjusting the number of spacers 31. Thereby, the roller 34 moves while rotating on the front end surface of the counterweight guide rail 12 when the counterweight device is raised and lowered. Other configurations are the same as those in the first or second embodiment.

Even with this configuration, the seismic strength of the counterweight frame can be increased while suppressing an increase in cost.

Embodiment 5 FIG.
Next, FIG. 9 is an exploded perspective view showing a main part of a counterweight device according to Embodiment 5 of the present invention. Each intermediate guide shoe 35 of the fifth embodiment has first to

third rollers

36, 37 and 38. That is, the intermediate guide shoe 35 is a roller guide shoe.

The first roller 36 is in contact with the front end surface of the counterweight guide rail 12 and is rotatable about a rotation axis that is parallel to the front-rear direction of the counterweight frame and is horizontal. The second and

third rollers

37 and 38 are arranged so as to sandwich the tip end portion of the counterweight guide rail 12, and are rotatable about a rotation axis parallel to the width direction of the counterweight frame. is there.

FIG. 10 is a plan view showing a contact state of the intermediate guide shoe 35 of FIG. 9 with the counterweight guide rail 12, and corresponds to a cross-sectional view taken along the line XX of FIG. In FIG. 10, the fastener 30 is omitted.

The first roller 36 is in proper contact with the front end surface of the counterweight guide rail 12 by adjusting the number of spacers 31. The second and

third rollers

37 and 38 are in contact with both side surfaces of the counterweight guide rail 12. Thereby, each

roller

36,37,38 moves, rotating on the balance weight guide rail 12 at the time of raising / lowering of the balance weight apparatus. Other configurations are the same as those in the first or second embodiment.

The upper guide shoe and the lower guide shoe used in combination with the

intermediate guide shoes

33 and 35 of the fourth and fifth embodiments may be roller guide shoes or sliding guide shoes.
Further, as the upper guide shoe and the lower guide shoe, roller guide shoes having three rollers that are in contact with the front end surface and both side surfaces of the counterweight guide rail 12 are used, as shown in the fourth embodiment. An intermediate guide shoe 33 may be used.

Embodiment 6 FIG.
11 is a plan view showing an intermediate guide shoe of a counterweight device according to Embodiment 6 of the present invention, and FIG. 12 is a front view showing the intermediate guide shoe of FIG. 11 (viewed from the counterweight guide rail 12 side). 13 is a side view showing the intermediate guide shoe of FIG. 12, FIG. 14 is a sectional view taken along line XIV-XIV in FIG. 12, and FIG. 14 shows only the section.

The intermediate guide shoe 41 of the sixth embodiment has first to

third slide members

42, 43, and 44. That is, the intermediate guide shoe 41 is a sliding guide shoe.

The first slide member 42 is in contact with the front end surface of the counterweight guide rail 12. The second and

third slide members

43 and 44 are disposed so as to sandwich the tip end portion of the counterweight guide rail 12 and are in contact with both side surfaces of the counterweight guide rail 12.

A rubber vibration isolating member 45 is interposed between the intermediate guide shoe 41 and the fixing bracket 29. The intermediate guide shoe 41 is attached to the suspension frame 23 via a vibration isolation member 45 and a fixing bracket 29. The intermediate guide shoe 41 is fixed to the vibration isolation member 45 by a plurality of bolts 46. Other configurations are the same as those in the first or second embodiment.

In such a configuration, since the vibration isolating member 45 is interposed between the intermediate guide shoe 41 and the counterweight frame, the

slide members

42, 43, and 44 are stably contacted along the counterweight guide rail 12. It can be slid while left.

The vibration isolating member 45 can be interposed between any type of intermediate guide shoe and the counterweight frame. For example, FIGS. 15 to 17 show modifications in which a vibration isolating member 45 is interposed between the intermediate guide shoe 32 and the fixing bracket 29 of the third embodiment. 18 to 20 show a modification in which a vibration isolating member 45 is interposed between the intermediate guide shoe 33 and the fixing bracket 29 according to the fourth embodiment. 21 to 23 show a modification in which a vibration isolating member 45 is interposed between the intermediate guide shoe 35 and the fixing bracket 29 of the fifth embodiment.

Further, the vibration isolating member 45 may be interposed between the fixing bracket 29 and the counterweight frame.
Further, the vibration isolating member may be a spring that presses the slide member or the roller against the counterweight guide rail.

Next, a method for repairing the counterweight device will be described. When it is necessary to increase the seismic strength of the suspension frame of the counterweight device during the repair work of the elevator, the counterweight frame of the existing counterweight device remains connected to the suspension body 8 in the first to third embodiments. An

intermediate guide shoe

28, 32, 33, 35 or 41 as shown in FIG. 6 is attached to the existing counterweight frame.

At this time, for example, once the existing upper guide shoe and lower guide shoe are once removed from the counterweight frame, the counterweight device can be shifted from between the counterweight guide rails. In this state, additional screw holes are machined into the existing counterweight frame. Then, with the intermediate guide shoe in contact with the counterweight guide rail, the counterweight device can be returned to its original position, and the intermediate guide shoe can be fixed to the counterweight frame using the additionally processed screw holes. it can.

According to such a repair method, the existing counterweight device can be diverted, and the seismic strength of the counterweight frame can be increased while suppressing an increase in cost. In addition, the repair work period can be shortened.

Embodiment 7 FIG.
Next, FIG. 24 is a perspective view showing a counterweight device according to Embodiment 7 of the present invention. The counterweight frame 51 is disposed between the two frame bodies 21 connected vertically and the frame bodies 21 adjacent to each other vertically, and a pair of connecting members 52 having a U-shaped cross section for connecting the frame bodies 21 to each other. And have.

Each frame body 21 has a suspension frame 23, an upper frame 24, and a lower frame 25, as in the first embodiment. However, the vertical dimension of the suspension frame 23 is shorter than the vertical dimension of the suspension frame 23 of Embodiment 1, and is about half. That is, the counterweight frame 51 of the seventh embodiment is divided into two frame bodies 21.

A loading weight 22 is held in each frame body 21. The upper guide shoe 26 is attached to the upper frame 24 located at the upper end of the counterweight frame 51. The lower guide shoe 27 is attached to the lower frame 25 located at the lower end of the counterweight frame 51.

Each connecting member 52 is fixed to the lower frame 25 of the upper frame 21 and the upper frame 24 of the lower frame 21 by bolting on the front side and the rear side of the counterweight device. Each intermediate guide shoe 28 is fixed to the connecting member 52. Between the intermediate guide shoe 28 and the connecting member 52, a spacer 31, a vibration isolating member 45, or the like may be interposed.

The upper frame 24 and the lower frame 25 of each frame body 21 are provided with component connection holes (not shown) for connecting components connected to the counterweight frame 51, respectively. Examples of the components connected to the upper frame 24 include a suspension coupling tool (rope hitch) connected to the suspension body 8. As a component connected to the lower frame 25, for example, a shock absorber receiver hitting a counterweight shock absorber can be cited. The overall configuration of the elevator is the same as that of the first embodiment.

In such a counterweight device, the intermediate guide shoe 28 that is in contact with the counterweight guide rail 12 is disposed between the upper guide shoe 26 and the lower guide shoe 27, so that the suspension frame is generated by the horizontal seismic force when an earthquake occurs. 23, the counterweight frame 51 can be sufficiently reinforced with the size of the existing suspension frame 23 and the connecting member 52, and the seismic strength of the counterweight frame 51 can be suppressed while suppressing an increase in cost. Can be high.

Also, when the counterweight device is refurbished, the existing counterweight device can be used to increase the seismic strength of the counterweight frame while suppressing an increase in cost. In addition, the repair work period can be shortened.

Further, since the balance weight frame 51 having a split structure is used, the loading work of the loading weight 22 at the installation site can be omitted or greatly reduced by preloading the loading weight 22 in the frame body 21 at a factory or the like. can do.

For example, it is assumed that the total mass of the unit in which the loading weight 22 is loaded to the frame 21 to the maximum is 500 kg. In this case, if the weight of the counterweight device is 1,800 kg, three 500 kg units, one 300 kg unit, and the adjustment weight 22 are shipped, and the units are connected at the installation site, and the total What is necessary is just to adjust mass. As a result, the adjustment work at the installation site can be performed only by putting in and out several loading weights 22.

Also, with such an installation method, the size and weight of the frame body 21 in which the loading weight 22 is loaded are smaller than in the case where the divided structure is not used, and the carry-in property is improved.

Furthermore, since the component connection holes are provided in the upper frame 24 and the lower frame 25 of the frame body 21, the frame bodies 21 can be arranged in any order, and the assemblability is improved.

The size and the number of the frame bodies 21 are not particularly limited.
It is also possible to combine frame bodies 21 having different sizes.
Furthermore, when combining three or more frame bodies 21, intermediate guide shoes 28 may be disposed at two or more connecting portions.
Furthermore, an intermediate guide shoe may be attached to the suspension frame 23.

For example, as shown in FIG. 25, a connecting member 53 fixed to the lower surface of the lower frame 25 of the upper frame body 21 and the upper surface of the upper frame 24 of the lower frame body 21 may be used.

Furthermore, for example, as shown in FIG. 26, a connecting member 54 fixed to the lower end portion of the suspension frame 23 of the upper frame body 21 and the upper end portion of the suspension frame 23 of the lower frame body 21 may be used.

Furthermore, intermediate guide shoes 32, 33, 35 or 41 of the type shown in the third to fifth embodiments may be attached to the counterweight frame 51 having the divided structure shown in the seventh embodiment. For example, FIG. 27 shows a modification in which the intermediate guide shoe 33 of the fourth embodiment is fixed to the connecting member 52.

Embodiment 8 FIG.
Next, FIG. 28 is a front view showing a counterweight device according to Embodiment 8 of the present invention, FIG. 29 is a side view showing the counterweight device of FIG. 28, and FIG. 30 is taken along the line XXX-XXX in FIG. FIG. 30 is a sectional view, and FIG. 30 omits the loading weight 22.

The counterweight frame 51 of the eighth embodiment has the same divided structure as that of the seventh embodiment. In the seventh embodiment, the suspension body 8 is connected to the upper frame 24 of the upper frame body 21, but in the eighth embodiment, the suspension body 8 is connected to the lower frame 25 of the lower frame body 21.

A tightening member 61 having an L-shaped cross section is fixed to the lower end portion of the counterweight frame 51, that is, the lower frame 25 of the lower frame body 21. A plurality of suspension body couplers (rope hitches) 62 connected to the suspension body 8 are coupled to the leash members 61.

Each suspension body connector 62 has a rope shackle 63, a shackle spring 64, and a spring receiver 65. The suspension body 8 is connected to the upper end portion of the rope shackle 63. The rope shackle 63 penetrates the rope stopping member 61 in the vertical direction. The spring receiver 65 is attached to the rope shackle 63 below the rope holding member 61. The shackle spring 64 is disposed between the lower surface of the rope stopping member 61 and the spring receiver 65, and surrounds the rope shackle 63.

The rope fixing member 61 is formed with a frame fixing portion 61a fixed to the lower frame 25 and a connector coupling portion 61b to which the suspension body coupling device 62 is coupled. The frame fixing portion 61a is joined to the lower surface of the lower frame 25, and is fixed to the lower frame 25 with a plurality of sets of bolts and nuts.

The coupling tool coupling portion 61b protrudes (overhangs) from the counterweight frame 51 outward in the horizontal direction. That is, the coupler coupling portion 61 b is disposed so as to protrude to either one of the counterweight frames 51 in the front-rear direction. Thereby, the suspension body connector 62 is disposed outside the area of the counterweight frame 51 when the counterweight device is viewed from directly above.

The lower frame 25 of the upper frame body 21 is fixed to the upper frame 24 of the lower frame body 21 by a plurality of connecting members (frame body fasteners) 66. Bolts and nuts are used as the connecting member 66. The configuration of the entire elevator is the same as that of the seventh embodiment.

Also, the upper guide shoe 26 and the lower guide shoe 27 are attached to the counterweight frame 51 as in the seventh embodiment. Further, an intermediate guide shoe may be added to the counterweight frame 51 of the eighth embodiment as in the first to seventh embodiments. That is, the eighth embodiment can be appropriately combined with any one of the first to seventh embodiments or any of their modifications.

In such a configuration, since the counterweight frame 51 is suspended at the lower end portion thereof, a suspension load does not act on the connection portion of the frame body 21, and the connection of the frame body 21 is sufficiently strong to prevent slippage. Become. Further, by fixing the rope retaining member 61 to the lower end portion of the existing or existing counterweight frame 51, the load applied to the connecting portion of the frame body 21 is reduced by diverting the existing or existing counterweight frame 51. can do. For this reason, the seismic strength of the counterweight frame can be increased while suppressing an increase in cost.

In addition, although the cross-section L-shaped rope fastening member 61 is shown in Embodiment 8, for example, as shown in FIG. 31, a flat-plate-like rope fastening member 61 may be used. That is, as long as the load of the counterweight device can be supported, the thickness dimension of the coupler coupling portion 61b may be set to the same level as the frame fixing portion 61a, and the configuration can be simplified.

Also in the eighth embodiment, the size and the number of the frame bodies 21 are not particularly limited.
Furthermore, it is possible to combine frame bodies 21 having different sizes.

Further, the layout and roping method of the elevator as a whole are not limited to the example of FIG.
Furthermore, the present invention can be applied to various types of weight balancing devices for elevators such as machine room-less elevators, double deck elevators, and one-shaft multi-car type elevators, and methods for repairing the same.

Claims

A counterweight frame having a frame including a pair of hanging frames, an upper frame connected between the hanging frames, and a lower frame connected between the hanging frames below the upper frame ,
A plurality of loading weights held in the frame;
A pair of upper guide shoes which are attached to both sides in the width direction of the upper end portion of the counterweight frame, and which contact the corresponding counterweight guide rail;
A pair of lower guide shoes that are attached to both sides in the width direction of the lower end portion of the counterweight frame and are in contact with the corresponding counterweight guide rails, and both sides in the width direction of the intermediate portion in the vertical direction of the counterweight frame An elevator counterweight device comprising a plurality of intermediate guide shoes attached to the counterweight guide rail and attached to the counterweight guide rail.
The counterweight frame is arranged between two or more of the frame bodies connected in the vertical direction and the frame bodies adjacent in the vertical direction, and at least one connecting member for connecting the frame bodies to each other. Have
The elevator counterweight device according to claim 1, wherein each of the intermediate guide shoes is attached to the connecting member.
The elevator counterweight device according to claim 2, wherein the upper frame and the lower frame of each frame body are respectively provided with component connection holes for connecting components connected to the counterweight frame. .
The elevator counterweight device according to any one of claims 1 to 3, wherein a vibration isolating member is interposed between the intermediate guide shoe and the counterweight frame.
A balance having two or more frames connected in the vertical direction and at least one connecting member arranged between the frames adjacent in the vertical direction and connecting the frames. A weight frame, and a plurality of loading weights held in the frame body,
On the lower end of the counterweight frame, a leash member is fixed,
The tug-fastening member is provided with a connector coupling portion to which a suspension body coupling device connected to a suspension body for suspending the counterweight frame is coupled,
The connecting device coupling portion is an elevator weight device that protrudes outward in the horizontal direction from the counterweight frame.
The counterweights corresponding to both sides of the intermediate portion of the counterweight frame in the vertical direction are connected to the suspension body for suspending the car and the counterweight device while the counterweight frame of the existing counterweight device is connected. A method of repairing an elevator counterweight device that increases the seismic strength of the counterweight frame by attaching a plurality of intermediate guide shoes so as to contact the guide rail.