JPS63202579A - Method of renewal construction of elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for updating an elevator, and particularly to a method for updating an elevator seat and door closing device.

[Conventional technology]

Generally, an elevator has a structure shown in FIG. The elevator moves up and down while maintaining its balance with the counterweight (4) along a pair of guide rails (3), (3) erected on the side wall of the hoistway (2). . Of course, the counterweight (4) also has a pair of guide rails (
5) and (5). Both of these (1) and (4) are suspended from both ends of a lobe (7) which is hung from a sheave (6) and is connected to a control device (
It is moved up and down by a hoisting machine (9) that is driven according to the control of (8). Furthermore, shock absorbers (10) and (11) are arranged on the floor of the hoistway (1) to receive the loads of the ride height (1) and the counterweight (4), respectively.

With the development of electronic technology, the control technology of such elevators has been improved, and ride comfort, safety, etc. have been significantly improved. In addition to improvements in control technology, the design has also been constantly improved to match the sensibilities of the times. Therefore, after several years have passed after installation, users will complain about the ride quality,
There is a need to update the elevators to ones that have significantly improved safety and are more in line with the current design.

[Problem that the invention seeks to solve]

However, as is clear from the above structure, the elevator forms part of the building, and is frequently used.
It is impossible to expect a long-term update work in which control equipment and the like are updated one after another. Therefore, it is desirable to update even just the passenger basket to a recent one. However, this requires the elevator to be stopped for at least two days in order to disassemble and reassemble the car, and this poses many difficulties for residential elevators. Especially in the case of residential elevators,
In rental buildings that only have one elevator, where work can only be done during hours when the frequency of use is low, there is a possibility that tenants may move, so it is desirable to develop a construction method that can be updated in as short a time as possible. Ta.

The present invention has been made to solve the above problems,
The time required for updating the elevators can be reduced to hours when the elevators are infrequently used, and the elevator cars can be updated by simply lowering the service floor by 10 to 20% instead of completely stopping the elevators. To provide a temporary device that can safely and comfortably drive an existing car.

[Means for solving problems]

The present invention provides a method for installing a temporary floor equipped with a temporary shock absorber in the hoistway up to at least one floor above the lowest floor of an elevator, and then moving an existing car up and down above the temporary floor. At the same time, a new car is assembled below, and a support member that receives the load on the temporary shock absorber is installed between a pair of guide rails that guide the existing car up and down.

[Effect]

According to the present invention, when updating an elevator car, a temporary floor is provided in the hoistway up to at least one floor above the lowest floor of the elevator, and the inside of the hoistway is divided vertically. However, while a new car is assembled below, the existing car can be moved up and down above, so the car can be updated without having to stop the elevator for a long time as in the past.

[Example] The present invention will be described below based on the example shown in FIGS. 1 to 4. Incidentally, the same or equivalent parts as in the prior art are given the same reference numerals, and the explanation thereof will be omitted. Figure 1 is a vertical cross-sectional view of the hoistway constructed using the construction method of this embodiment, and (12) is the lowest floor (
13) A temporary floor installed horizontally in the hoistway (2) below the floor (I4) on the 2nd floor - F side, (15) is a temporary buffer installed in the center of the temporary floor (12) Vessel, (16)
A first support beam is installed between the guide rails (3) and (3) and serves as a support member that supports the temporary floor (12) and the temporary shock absorber (15). FIGS. 2 to 4 are enlarged views of the above configuration. In each figure, (1
7) is the second support beam of the temporary floor (12) arranged along each wall surface of the landing side of the hoistway (2) and the opposite side thereof.

An opening (+2a) that allows the passage of the counterweight (4) is formed in the construction floor (12), and prevention fences (+8.) and (18) are erected along the opening (12a), and the floor ( 12
) to prevent parts from falling during work. Further, the temporary floor (12) is configured to be able to be opened and closed in the direction of the arrow as shown by the dashed line in FIG.

First and second support beams (1, 6) that support the temporary floor (12)
.

FIG. 4 is a further enlarged view of (17). A notch (+2b) is formed in the temporary floor (I2) to avoid interference with the guide rail (3), and a second support beam (17) attached to the hoistway (2) is formed inside the notch (12b). ) is located. Furthermore, the first support beam (17) is perpendicular to the second support beam (17).
A support beam (16) is temporarily installed between the guide rails (3), (3). The support beam (16) is connected to the guide rail (3
) are fastened with bolts and nuts (19). By stacking several stages in this manner, the structure is such that it can withstand the impact load of the driven car (1).

In this example construction method, by arranging the temporary floor (12) etc. as described above, a space is secured in which the car (1) can be freely driven above it and the elevator can be driven up and down, and the elevator is stopped. You can get away with it without having to do it. When driving the elevator, the control device (8)
It is necessary to change the sequence control for the short M'S motion range.

While the elevator is operating, in the space below the temporary floor (12), the latest type of car (IA) to be updated is being installed.
) can be newly established. When assembling the car (IA), the floor surface should be 500 m above the lowest floor (13).
Align it with the position raised by about mm, and use the gap to insert and remove parts and use it as the entrance and exit of the work hole. Furthermore, when the driving carriage (1) stops on the temporary floor (12), there is a gap between the floor (I4) and the underside of the carriage (1) for the same purpose as mentioned above. It is preferable to form a gap of about 500 mm.

After completing the assembly of the new car (IA), each rail bracket (not shown) located above the stopped part of the existing car (+) and counterweight (4)
Lower the platform lobe from the platform, hoist the existing cage (1) and counterweight (4) via the chain block, loosen the rope (7) and remove it from the cage (1), and remove the cage (1). Dismantle it and carry it out of the hoistway (2). Next, the temporary floor (12) is dismantled and the hoistway (2) is constructed in the same way.
) After being carried outside, the new pedestal (IA) is suspended via the chain block and the lobe (7) is connected to it. After that, the car (18) and the counterweight (
4) Remove the chain hoist and table material robe to complete the work.

In addition, when updating the door closing device on the landing side in response to the IA, please stop every other service floor and update while the IA is being assembled. can do.

〔Effect of the invention〕

As described above, according to the present invention, the car can be updated without stopping the elevator, and the time constraints associated with updating can be largely eliminated.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the hoistway side showing an embodiment of the elevator renewal method according to the present invention, Fig. 2 is an enlarged view of the portion H in Fig. 1, and Fig. 3 is the -■ line sectional view, FIG. 4 is a partial perspective view showing the relationship between the temporary floor and the first and second support beams, and FIG. 5 is a view equivalent to FIG. 1 showing the installation state of a conventional elevator. In the figure, (1) is the existing car, (IA) is the new car, (
2) is the hoistway, (3) is the guide rail, (12
) is a temporary floor, (15) is a temporary buffer, (16)
is a support beam (support member). In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] After installing a temporary floor and a temporary shock absorber in the hoistway up to at least one floor above the lowest floor of the elevator, the existing car will be raised and lowered above the temporary floor, while the elevator car will be moved downwards. is an elevator renewal method in which a new car is assembled, in which a support member that receives the load on the temporary shock absorber placed on the temporary floor is erected over a pair of guide rails that guide the existing car up and down. This is an elevator renewal method that is characterized by: