JP3333333B2 - Elevator renewal method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a renewal method for replacing existing equipment and equipment of a plurality of elevators (elevators) arranged in parallel with new equipment.

[0002]

2. Description of the Related Art In general, elevators have been installed in a building or the like for many years, and since many devices and equipment have deteriorated considerably, the reliability and safety of the elevators and the design of these elevators have increased. It is necessary to replace equipment and existing equipment with new ones. For example, in a control panel installed in a machine room of an elevator, a coil portion of a contactor and a switch is easily deteriorated, and a contact portion that repeats opening and closing operations is also easily deteriorated. Also,
If the tail code deteriorates, electric signals to the car will not be transmitted reliably, which may lead to serious accidents such as passengers being trapped inside the car. The user will be uncomfortable. Therefore, when a considerable number of years have passed since the installation of the elevators, renewal work was often performed to replace existing equipment and devices with new ones. Of course, all elevators will be renewed.

FIG. 4 is a schematic diagram for explaining a conventional renewal work method in a site where two elevators are arranged side by side.

At the site shown in FIG. 1, existing control panels 3a and 3b to be replaced are installed in a machine room 2 located above the hoistways 1a and 1b.
3b is connected to the cars 5a, 5b in the hoistways 1a, 1b via tail cords 4a, 4b, respectively, and is connected to the hoistway 1 via hoistway wirings 6a, 6b.
a, 1b are connected to the display devices 7a, 7b at the entrances. And these two elevators (Unit 1 and Unit 2)
Conventionally, when performing the renewal, first, the wiring 8 connecting between the control panels 3a and 3b of both elevators is cut to remove 1
After disconnecting Unit 2 and Unit 2, while operating one of the elevators normally, replace the existing equipment and devices of the other elevator with new ones, so that this replacement work is completed and normal operation can be performed Then, the same operation was performed for the elevators that had been operating up to that point, so that the time during which the operation of both elevators was stopped was not too long.

For example, in FIG. 4, control panels 3a, 3b
After disconnecting the wiring 8 connecting the two, first, while operating the second unit normally, the existing control panel 3a, the existing tail cord 4a, the existing car 5a, the existing display device 7a, etc. of the first unit are removed. A new control panel, a new tail cord, a new car, a new display device, etc. (not shown) of the first unit are respectively installed at predetermined positions, and necessary connections are made.
Restore Unit No. Next, the operation of Unit 2 was stopped, and
The same removal and new construction work as in the case of Unit No. is performed, and finally the newly installed control panels of both elevators are connected. This allows the user to
If the operation of Unit 2 starts after the disconnection of the wiring 8, the Unit 2 can be used during the removal and installation of the Unit 1, and the restored Unit 1 can be used during the removal and installation of the Unit 2. .

[0006]

When renewal of a plurality of elevators arranged side by side is performed by the above-mentioned conventional method, at least one of the elevators is cut off by connecting wires connecting existing control panels in the machine room. The use of all elevators must be suspended until the elevators are ready for operation, but the existing control panels to be replaced are connected by many wires, Since a considerable amount of time is required, when the conventional method is employed, there is a problem in that the non-operation time when all the elevators installed side by side cannot be used is prolonged.

That is, in FIG. 4, a considerable amount of work is required to cut the wiring 8 between the existing control panels 3a and 3b in the machine room 2, and in addition, the normal operation of the Unit 2 is hindered. In some cases, it is necessary to carefully select the cutting location so as not to cause trouble and change the circuit, so that it takes a long time until the cutting work of the wiring 8 is completed.
It is necessary to stop the operation of both the elevators, and if both elevators are indispensable sites for vertical transportation, it will cause great trouble to users such as building residents.

The present invention has been made in view of such problems of the prior art, and has as its object to minimize the time for stopping the operation of a plurality of elevators arranged side by side as much as possible, thereby improving the convenience of the user. It is an object of the present invention to provide a method for renewing an elevator, which enables a replacement operation to be performed while planning.

[0009]

In order to achieve the above-mentioned object, according to the present invention, when a plurality of (for example, two) elevators are renewed, first of all, one of the elevators is installed on an existing elevator. Remove the tail cord, car, display device, etc. and replace them with new ones,
After connecting these new tail cords and new display devices to the newly installed control panel temporarily installed in an empty space in the machine room via a relay cable, the existing control panel of this elevator and other elevators connected to it are connected. Remove the existing control panel and move the new control panel of the former elevator to a predetermined position in the machine room, and install the new control panel of the latter elevator at a predetermined position in the machine room. After removing the tail cord, car and display device etc. and replacing them with new ones, connect these new tail cords and new display device to the corresponding new control panel, remove the relay cable, The newly connected tail cord and the newly installed display device are connected to the corresponding newly installed control panel, and thereafter, the plurality of newly installed control panels are connected. It was decided. At this time, it is preferable that the connection between the plurality of newly installed control panels be a connector connection.

[0010]

According to the renewal method described above, first, one elevator is replaced. At this time, the elevator is temporarily installed with a new control panel and the existing control panel is not removed. Can be operated as before. Further, if the operation of exchanging one elevator is almost completed and the vehicle becomes operable, the operation of exchanging another elevator can be performed while operating the elevator.
At this time, the existing control panels of all elevators to be replaced can be removed without disconnecting the interconnections between them.
Work volume can be greatly reduced. In addition, compared to the conventional method, in which all elevators cannot be used when disconnecting wiring between existing control panels, the above-mentioned renewal method can significantly reduce the non-operation time, which is convenient for users. I can do it.

The work of disconnecting the relay cable and reconnecting the newly installed tail cord or the newly installed display device to the newly installed control panel is as follows.
Easy connection because of connector connection. In addition, when connecting multiple new control panels, it is necessary to temporarily stop the operation of all the elevators. If the connections between these control panels are also connected by connectors, the non-operation time can be further reduced. can do.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. Here, FIG. 1 is an explanatory view showing a state where the first step of the present embodiment has been completed, FIG. 2 is an explanatory view showing a state where the second step of the present embodiment has been completed, and FIG.
FIG. 5 is an explanatory diagram showing a state in which the process is completed, and portions corresponding to FIG. 4 are denoted by the same reference numerals.

At the site shown in FIGS. 1 to 3, two elevators (1
In order to renew both elevators, in the present embodiment, the first step is to carry out the first step in the present embodiment, while keeping the existing control panel 3a for the existing tail cord 4a and the figure as the first step. The existing car basket that can not be shown,
The display device and the like are removed, the new tail cord 21a, the new car 22a, the new display device 23a, and the new hoistway wiring 24a are installed, and the new control panel 20a is temporarily installed in an empty space in the machine room 2. New control panel 20
a, the relay cable 11 and the newly installed hoistway wiring 24
The new display device 23a is connected via a, and the new tail cord 21a is connected via the relay cable 12.
At this time, the relay cable 11 and the newly installed hoistway wiring 24a are connected by connecting the connectors 13a and 16, and the relay cable 11 and the new control panel 20a are connected by connecting the connectors 13b and 17. Similarly, the relay cable 12 and the new tail cord 21a are connected by connecting the connectors 14a and 18, and the relay cable 12 and the new control panel 20a are connected by connecting the connectors 14b and 19. Also,
During the operation of the first step, the existing control panel 3a is not removed, so that the control panel 3b of the second unit is not affected at all, so that the second unit can be operated as usual. Then, when the first step is completed, as shown in FIG. 1, the first unit is practically restored and becomes operable.

Next, as a second step, the existing control panels 3a and 3b of Units 1 and 2 are collectively removed, the existing tail cord 4b of the Unit 2 and the existing car 5b, the existing hoistway wiring 6b and the existing display device 7b. To remove. At this time, the existing control panels 3a and 3b can be collectively removed without cutting the wiring 8 connecting them, and even if the control panels 3a and 3b are cut, the newly installed devices and equipment of the first unit have no effect. Since it has no effect, it can be cut without paying special attention. Further, during the operation of the second step, the operation of the second machine is stopped, but the first machine can be operated as shown in FIG.

Next, as a third step, the newly installed control panel 20a of the first unit is moved to a predetermined position in the machine room 2 and the relay cables 11 and 12 are disconnected.
The new display device 23a via the newly installed hoistway wiring 24a.
And the new tail cord 21a is connected to complete the replacement work of the first unit. In the third step, when the relay cables 11 and 12 are disconnected and the new display device 23a and the new tail cord 21a are reconnected to the new control panel 20a, it is necessary to temporarily stop the operation of the first unit. Since the disconnection and reconnection performed at that time are all connection and detachment of the connector, the operation stop time can be extremely short.

Thereafter, as a fourth step, a new control panel 20b for the second machine is installed at a predetermined position in the machine room 2, and a new tail cord 21b for the second machine, a new car 22b, a new display device 23b and New hoistway wiring 24
b is installed at a predetermined position in the hoistway 1b, and the newly installed tail cord 21b and the newly installed hoistway wiring 24b derived from the new display device 23a are connected to the new control panel 20b. At this time, the newly installed hoistway wiring 24b and the new control panel 20b are connected by coupling the connectors 25 and 26, and the new tail cord 21b and the new control panel 20b are connected to the connector 2
7 and 28 are connected.

Finally, as a fifth step, two newly installed control panels 20a and 20 installed at predetermined positions in the machine room 2 are provided.
b) are connected to each other by using the wiring 29 whose ends are formed into connectors, and the renewal work is completed. That is,
The wiring 29 and the new control panel 20a are connected by connecting the connectors 30a and 31. The wiring 29 and the new control panel 20b are connected by connecting the connectors 30b and 32.

According to this embodiment in which two elevators are exchanged in this way, a considerable amount of time is generated due to some trouble occurring when the existing car or the existing tail cord 4a of the first machine is removed in the first step. Even if it is necessary, the wiring 8 between the existing control panels 3a and 3b has not been changed,
During the work of the process, the second machine can be used, so that there is little trouble for the user. When the first step is completed, normal operation of the first unit becomes possible. Therefore, during the operation of the second step of stopping the operation of the second unit, the first unit can be used. However, it is possible to use the first unit except for a short time for connecting and disconnecting the connector.
When the third step is completed, the replacement work of the first unit is completed, so that the first unit can be used in the fourth step, and in the fifth step, the operation of both the first and second units is temporarily stopped. The new control panel 20
Since the connectors a and 20b can be easily connected to each other, the operation stop time can be reduced. In other words, in this embodiment, during the entire operation from the first step to the fifth step, the downtime during which both Units 1 and 2 cannot be used is extremely small, so that the two units can be used without inconvenience to the user. Can be renewed.

In this embodiment, the newly installed tail cords 21a and 21b, the cars 22a and 22b, and the display 2
3a and 23b are connected to the newly installed control panels 20a and 20b by connectors, respectively.
b Since connectors are connected to each other via the wiring 29 and the ends of the relay cables 11 and 12 are also formed as connectors, the connection work and the disconnection work are easy, and the amount of work is greatly reduced. , Troubles are less likely to occur.

Further, in the present embodiment, the existing control panels 3a and 3b of the first and second units can be collectively removed without cutting the wiring 8 therebetween, so that the cumbersome connection wiring cutting work is omitted and the work amount is reduced. Can be further reduced.

The working procedures of the second, third and fourth steps in the above embodiment can be changed as appropriate.
The order of the third step and the fourth step may be reversed.

[0022]

As described above, according to the present invention, when a plurality of elevators are renewed, first, a new control panel of one of the elevators is temporarily installed and the elevator can be operated. After that, the existing control panel of the elevator and the existing control panel of other elevators connected to it can be removed collectively without cutting the connection wiring, so that all elevators cannot be used The time can be greatly reduced, and the renewal work can be performed with the convenience of the user, which is excellent, and the amount of work can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a state in which a first step of the present embodiment has been completed.

FIG. 2 is an explanatory view showing a state where a second step of the embodiment is completed.

FIG. 3 is an explanatory view showing a state where a fifth step of the embodiment is completed.

FIG. 4 is a schematic diagram for explaining a conventional method.

[Explanation of symbols]

 1a, 1b hoistway 2 machine room 3a, 3b existing control panel 4a, 4b existing tail cord 5a, 5b existing car 6a, 6b existing hoistway wiring 7a, 7b existing display device 8 existing connection wiring 11, 12 relay cable 13a, 13b, 14a, 14b Connector 16-19, 25-28 Connector 20a, 20b New control panel 21a, 21b New tail cord 22a, 22b New car 23a, 23b New display device 24a, 24b New hoistway wiring 29 New connection wiring 30a , 30b, 31, 32 connectors

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B66B ^7/ 00-7/12

Claims (3)

(57) [Claims] When a plurality of elevators are renewed, first, one of the elevators is renewed.
The existing tail cord, car, display device, etc. are removed and replaced with new ones, and these new tail cords and new display devices are temporarily installed in empty space in the machine room via relay cables. After connecting the connector, remove the existing control panel of this elevator and the existing control panel of another elevator connected thereto, and move the new control panel of the former elevator to a predetermined position in the machine room, A new control panel of the latter elevator is installed at a predetermined position in the machine room, and the existing tail cord, which has not been removed,
After removing the car and the display device and replacing them with new ones, the new tail cord and the new display device were connected to the corresponding new control panel, and the relay cable was removed and connected. A method of renewing an elevator, wherein a new tail cord and a new display device are connected to the corresponding new control panel, and thereafter, the plurality of new control panels are connected to each other. 2. The method according to claim 1, wherein the connection between the plurality of newly installed control panels is a connector connection. 3. The method according to claim 1, wherein the number of elevators installed in parallel and to be renewed is two.
A lift renewal method characterized by being a stand.