WO2017029709A1

WO2017029709A1 - Passenger rescue device for elevator

Info

Publication number: WO2017029709A1
Application number: PCT/JP2015/073114
Authority: WO
Inventors: 公丈鵜川; 加藤　久仁夫
Original assignee: 三菱電機株式会社
Priority date: 2015-08-18
Filing date: 2015-08-18
Publication date: 2017-02-23

Abstract

A passenger rescue device for an elevator is provided with a rescue weight (11), a plurality of wheels (19) for movably supporting the rescue weight (11), and a chain block (12) of which the lower end is connected to the rescue weight, the upper end of the chain block (12) hanging from a compensation chain (5).

Description

Elevator passenger rescue device

The present invention relates to an elevator passenger rescue device.

So far, as a method for rescuing passengers in an elevator, for example, there are methods disclosed in Patent Document 1 and Patent Document 2. In these methods, the cage is moved by pulling the governor rope or the compen- sion rope, and the passengers left in the cage are rescued.

JP 2001-006218 A JP 2011-046456 A

However, the method disclosed in Patent Document 1 requires a rope holding tool for the governor rope and the compen- sion rope because of the configuration for pulling the governor rope and the compen- sion rope, which is very expensive. In particular, in the method disclosed in Patent Document 1, since the governor rope is pulled at the time of rescue, a model such as a luggage elevator has a running resistance of about 500 kgf. Therefore, the governor rope needs to be pulled with a considerable force. There was a problem that the strength of the fixed portion of the rope was insufficient. Moreover, when fixing an electric winch to the landing sill part of the lowest floor, the fixing and the great cost were required. In general, a rescue weight of about 10 kg is suspended, but it is practically time consuming and nearly impossible to suspend 50 pieces to about 500 kg. It was.

Also, the method disclosed in Patent Document 2 similarly requires a rope holder for the governor rope and the compen- sion rope because of the configuration for pulling the governor rope and the compen- sion rope, which is very expensive. Also in Patent Document 2, there is a problem that the governor rope needs to be pulled with a considerably large force, and the strength of the fixing portion of the governor rope is insufficient. In addition, a rope catcher for holding the governor rope is required, and there is a problem that the structure is complicated and the cost and the time and effort for rescue are required.

The present invention has been made in view of the above, and an object of the present invention is to provide an apparatus that has a simple apparatus configuration and can rescue an elevator passenger without taking time and effort for installation. To do.

In order to achieve the above-described object, an elevator passenger rescue device according to the present invention includes a rescue weight, a plurality of wheels that movably support the rescue weight, and a chain block having a lower end connected to the rescue weight. The upper end of the chain block is suspended from the compensator chain.

According to the present invention, it is possible to provide a device that has a simple device configuration and rescues passengers of an elevator without taking time for installation.

It is a whole block diagram which shows the structure at the time of the passenger rescue by Embodiment 1 of this invention. It is a figure which shows the state which suspended | suspended the weight on the cage | basket | compensation chain at the time of balance of a basket and a counterweight. FIG. 3 is a side view of FIG. 2. FIG. 3 is a diagram in which an operator goes out from the state of FIG. 2 to release a brake and move a basket. FIG. 5 is a side view of FIG. 4. It is the figure which suspended the rescue weight by 2 to 1 to the cage side compensator chain. FIG. 7 is a side view of FIG. 6. FIG. 7 is a plan view of FIG. 6. It is the figure which suspended the rescue weight of the compensation chain of both sides. FIG. 10 is a side view of FIG. 9. FIG. 10 is a plan view of FIG. 9. It is the B section enlarged view of FIG. FIG. 13 is a cross-sectional view as seen from a cross-section CC in FIG. 12. FIG. 14 is an exploded detail view of the configuration shown in FIG. 13. It is the figure which hung the rescue weight directly (one to one) to the cage side compensator chain. FIG. 16 is a side view of FIG. 15. FIG. 16 is a plan view of FIG. 15. It is the figure which hung the rescue weight from the both sides of the cage side compensator chain. It is a side view of FIG. It is a top view of FIG. It is a figure which shows the state just before lifting which comprised the moving stand part of the rescue weight separately. It is a side view of FIG. It is a top view of FIG. It is the figure which suspended the rescue weight from the state of FIG. It is a side view of FIG. It is the A section enlarged view of FIG. FIG. 27 is a cross-sectional view seen from a cross-section DD in FIG. 26. FIG. 28 is an exploded detail view of the configuration shown in FIG. 27. It is a figure which shows the state which suspended the rescue weight by 1 to 1 to the balance weight side compensation chain. FIG. 30 is a side view of FIG. 29. FIG. 30 is a plan view of FIG. 29. FIG. 32 is a front view of a weight portion of the rescue weight shown in FIGS. 29 to 31. It is a side view of FIG. It is a bottom view of FIG. It is a figure explaining the position of the rescue weight in a hoistway. It is a figure which shows a mode before moving the passenger rescue apparatus of an elevator to the downward direction of a compensation chain. It is a figure which shows a mode that the passenger rescue apparatus and cage of the elevator were lowered | hung.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

Embodiment 1 FIG.
The first embodiment will be described with reference to FIGS. 1 to 14, FIG. 36, and FIG. The elevator includes a hoistway 1 that extends vertically, and a cage 2 and a counterweight 3 that are movably provided therein. The cage 2 and the counterweight 3 are guided along a rail fixed to the wall defining the hoistway 1.

These cage 2 and counterweight 3 are suspended from a rope 4 driven by a hoisting machine 7. More specifically, the rope 4 is wound around the sheave 9 of the hoisting machine 7. The hoisting machine 7 is supported by the hoisting machine stand / control panel 8 and is further connected to an operation unit (brake release device) 10.

A compensator chain suspension 6 is provided at each of the lower part of the basket 2 and the lower part of the counterweight 3. One end of the compensator chain 5 is connected to the compensator chain suspension 6 at the lower part of the cage 2, and the other end of the compensator chain 5 is connected to the compensator chain retainer 6 at the lower part of the counterweight 3. .

Next, the outline of the operation using the elevator passenger rescue device of the first embodiment will be described. As shown in FIG. 36, the elevator passenger rescue device is moved below the compensator chain 5, and the elevator passenger rescue device is hooked at an appropriate position in the compensator chain 5 (below the cage 2).

Next, wrap the chain block. Thereby, the state where the passenger rescue device of the elevator floats from the floor of the hoistway and the passenger rescue device of the elevator is suspended from the compensator chain 5 is the state shown in FIG. The lifting dimension is preferably the length required for moving the cage + α (one-to-one).

Thereafter, when the operator goes out of the pit and operates the operation unit (brake release device) 10 to release the brake, the weight of the passenger rescue device of the elevator is newly added as a force for lowering the cage 2. Due to this, the lowering of the basket 2 starts. As shown in FIG. 37, when the cage 2 descends to the nearest floor, the cage 2 is stopped.

In FIG. 2 to FIG. 35, for the sake of clarity of illustration, a part of the compensator chain 5 (portion hanging below the passenger rescue device of the elevator) is not shown.

Next, the details of the elevator passenger rescue device will be described. The elevator passenger rescue device includes a rescue weight 11, a chain block 12, a pulley suspension 13, an interlocking rope 14, wheels 19, and a pulley 20.

As an example, the rescue weight 11 is provided with four wheels 19 so that the rescue weight 11 can be easily moved. Thereby, at the normal time, the rescue weight 11 can be stored at a predetermined position so as not to interfere with the installation or maintenance.

The lower end of the chain block 12 is connected to the rescue weight 11. The upper end of the chain block 12 is suspended from the compensator chain 5 positioned below the cage 2 and the counterweight 3, and specifically connected to one end of the interlocking rope 14.

The other end of the interlocking rope 14 is supported integrally with the demarcating portion of the hoistway (supported in such a manner as to be integral with the wall portion 1a demarcating the hoistway). As a specific example, the lower rope holder 17 is connected. The lower rope holder 17 is supported by a weight guide rail 16 that is supported via a rail bracket 15 so as to be integrated with a wall portion 1 a that defines a hoistway.

The interlocking rope 14 is wound around the pulley 20. The pulley 20 is supported by the compensator chain 5 via the pulley suspension 13.

Note that a guide 18 is supported with respect to one appropriate rail bracket 15. The guide 18 avoids interference between the mounting portion of the rescue weight 11 on the wheel 19 and the rail bracket 15, whereby the mounting portion of the rescue weight 11 on the wheel 19 is caught on the rail bracket 15 on the way. It is intended to more reliably avoid the problem and realize a smooth rescue operation.

As shown in FIG. 8, only one set of the chain block 12, the pulley suspension 13, the interlocking rope 14, and the pulley 20 may be provided, or two or more sets as shown in FIG. It may be provided. FIG. 11 uses a longer rescue weight 11, and two sets of chain block 12, pulley suspension 13, interlocking rope 14, and pulley 20 are provided.

Next, details of the pulley suspension 13 and related parts will be described. FIG. 14 is an exploded view of the pulley hanging jig, and a member denoted by reference numeral 13b is a member for hanging on the compensator chain 5 with a U bolt. The U bolt 13b passes through holes provided at both ends of the support bar 13n and is fixed by a nut 13p. In order to suspend the pulley 20, two suspension plates 13a are arranged, and the upper part is fixed on both sides by a support shaft 13c by a washer 13d, a spring seat 13e, and a nut 13f.

In the pulley 20, a bearing 13h is fixed as a pulley bearing with a C-type retaining ring 13i, and a collar 13j is installed between the inner ring of the bearing 13h and the suspension plate 13a through the shaft 13g, and is opened at both ends of the shaft 13g. It is arranged in the formed hole by a burring pin 13k. Further, the locking rope 13l of the interlocking rope 14 is fixed to a screw portion provided on one of the suspension plates 13a by a screw 13m.

The support shaft 13c of the pulley suspension jig 13 configured as described above is suspended by a support bar 13n fixed to the U bolt 13b. As described above, the pulley 20 can be suspended from the compensator chain 5 and can be rescued by suspending the rescue weight 2: 1.

According to the first embodiment configured as described above, it is possible to provide an apparatus that has a simple apparatus configuration and that can rescue an elevator passenger without troublesome installation. it can. In particular, in the present invention, a large elevator is assumed, and the running resistance loss is several hundred kg. For this reason, the rescue weight is several hundred kg to about 1000 kg, and it is an obstacle to maintenance or the like to always install it at the rescue position of the pit in the hoistway 1. In contrast, if the two-to-one pulley 20 is used as in the first embodiment, the mass of the rescue weight 11 is halved, and the wheel 19 installed at the lower part of the rescue weight 11 can be instantly rescued. It is now possible to move to a predetermined position and perform rescue time in a short time.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to FIGS. The second embodiment is the same as the first embodiment described above except for the contents described below. 15 to 20 and FIGS. 26 to 28 correspond to FIGS. 6 to 11 and FIGS. 12 to 14, respectively.

The elevator passenger rescue device includes a rescue weight 11, a chain block 12, a chain block lifting tool 22, and wheels 19.

The lower end of the chain block 12 is connected to the rescue weight 11, and the upper end of the chain block 12 is connected to the lower end of the chain block lifting tool 22. The upper end of the chain block lifting tool 22 is directly connected to the compensator chain 5.

As shown in FIG. 17, only one set of chain block 12 and chain block suspension 22 may be provided, or two or more sets may be provided as shown in FIG. . FIG. 20 uses a longer rescue weight 11 and is provided with two sets of chain blocks 12 and chain block suspensions 22.

Next, details of the pulley suspension 13 and related parts will be described. FIG. 28 is a detailed exploded view of the chain block lifting jig 22 configured to suspend the rescue weight 11 on the compensator chain 1 on a one-on-one basis. The member indicated by reference numeral 22b is a U bolt, and the upper U bolt and the lower U bolt are the same. The upper part of the U bolt 22b is hooked on the compensator chain 5, and the threaded portion of the U bolt 22b is passed through the holes provided at both ends of the support rod 22d to suspend the shaft 22c passed through the suspension plate 22a. It is stopped by the nut 22e. A shaft 22c is passed through the suspension plate 22a and is fixed by a washer 22f, a spring seat 22g, and a nut 22h. The lower U-bolt 22b is also mounted in the same manner as the upper U-bolt 22b, and the upper hook of the chain block 12 that hangs the rescue weight 11 is hung so that the rescue weight 11 can be suspended one-on-one. .

Also configured as described above, the second embodiment also has a simple device configuration as in the first embodiment, and can rescue the passengers of the elevator without taking time for installation. An apparatus can be provided. In an elevator that does not need to be suspended two-to-one, as shown in FIGS. 15 to 28, the rescue weight 11 is set directly at the position of the compensator chain on the cage 2 side during rescue, and the time is shortened. It is possible to rescue passengers at the airport.

Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

In the above description, the mode of attaching the rescue weight 11 to the cage 2 side of the compensator chain 5 in order to lower the cage 2 has been described, but the implementation of the present invention is not limited to the above mode. For example, using the configuration shown in FIGS. 29 to 34, the rescue weight 11 can be hung on the counterweight 3 side of the compensator chain 5 and the cage 2 can be lifted and stopped at the nearest floor to rescue the passenger. . In addition, although the aspect shown in FIGS. 29-34 has shown with the structure (1 to 1 suspension aspect) of the said Embodiment 2, it is not limited to this, The structure (2 to 1) of the said Embodiment 1 is shown. It is also possible to carry out in a hanging mode).

Further, the rescue weight 11 may be connected to the wheel 19 via a bracket, or may be placed on, for example, a vessel-shaped lower base 23 provided with the wheel 19. In the illustrated example, the wheel 19 is connected to the rescue weight 11 via a bracket in the first embodiment, and the rescue weight 11 is placed on the lower base 23 in the second embodiment. However, the present invention is not limited to this. Therefore, the rescue weight 11 may be placed on the lower base 23 in the first embodiment, and the wheel 19 may be connected to the rescue weight 11 via the bracket in the second embodiment.

As shown in FIG. 35, the elevator passenger rescue device uses a wheel 19 provided on the rescue weight 11 to cushion the elevator so that it does not interfere with maintenance during installation or normal operation, as indicated by the dotted line in the figure. The container 25, the car side shock absorber table 24 and the car guide rail 21 are stored away from each other, and the rescue weight 11 is moved to the lower part of the compensator chain 5 only at the time of rescue to rescue the passenger safely and in a short time. It is preferable to do. Further, the rescue weight 11 can be easily moved to the lower part of the compensator chain 5 only when the cage 2 and the counterweight 3 are in a balanced state and the cage does not move even when the brake is released.

1 hoistway, 2 cages, 5 compen chain, 11 rescue weight, 12 chain block, 13 pulley suspension, 14 interlocking rope, 19 wheels, 20 pulley.

Claims

A rescue weight,
A plurality of wheels that movably support the rescue weight;
A chain block having a lower end connected to the rescue weight;
The upper end of the chain block is suspended from a compensator chain,
Elevator passenger rescue device.
Further comprising a pulley suspension, an interlocking rope, and a pulley, the upper end of the chain block is connected to one end of the interlocking rope,
The other end of the interlocking rope is supported integrally with the demarcation part of the hoistway,
The interlocking rope is wound around the pulley,
The pulley is supported by the compensator chain via the pulley suspension.
The elevator passenger rescue device of claim 1.
The upper end of the chain block is connected to the lower end of the chain block suspension,
The upper end of the chain block hanging tool is directly connected to the compensator chain,
The elevator passenger rescue device of claim 1.