JPS6374885A - Method of remodeling elevator - Google Patents

Abstract

(57) [Abstract] 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 an elevator remodeling method for remodeling an existing elevator into a new elevator.

[Conventional technology]

Elevators are considered important as a means of transportation within buildings, and are installed in all buildings with five or more floors.

While the elevator has been in operation for many years, the cars may become damaged, performance may deteriorate, the design may become obsolete, or new needs may arise, such as increased speed or energy savings. Elevators are sometimes remodeled for these reasons. Conventionally, in order to carry out this modification, the elevator was kept for a certain period of time, for example, about one month.
During this period, the existing car, hoisting machine, doorway parts, etc. were removed, and the new car, hoisting machine, doorway parts, etc. were being assembled. However, this method does not pose much of a problem in buildings with two or more elevators because one elevator can be shut down, but in the case of a small building with only one elevator, it may take a long time for remodeling. There was a problem in that the elevators could not be used, causing a great deal of inconvenience to users.

For this reason, it has recently been proposed to use only Saturdays and Sundays as holidays for partial remodeling.
Although it can be applied to office buildings where Sunday is a holiday, it cannot be applied to buildings with no holidays such as apartment buildings. Another problem was that it was difficult to secure workers for Saturday and Sunday holiday work.

As a way to solve these problems, a temporary machine room equipped with a temporary hoist is installed on the upper floor of the existing hoistway, and the temporary hoist is used to raise and lower the existing or temporary car for service. It has been proposed that a new hoisting machine and passenger car be assembled during the service period. With this method, the elevator only needs to be shut down for a limited period of time, such as during the installation and removal of the temporary hoist and car.
This has the effect of shortening the period of inconvenience to users.

Incidentally, related methods of this type of modification include, for example, JP-A-61-64686 and JP-A-61-6468.
Examples include No. 7.

[Problem that the invention seeks to solve]

In the above proposal, it was necessary to install a temporary machine room containing a temporary hoist on a floor near the top floor of the hoistway. Therefore, in the case of a small-scale building, etc., not only does it require a great deal of labor to carry it in and out, but it also poses problems in terms of workability and safety because the work must be carried out in a narrow space.

The purpose of the present invention is to install a temporary machine stock room at the top of the hoistway;
The objective is to oversee the removal work and improve workability and safety associated with this work.

[Means for solving problems]

The above purpose is to provide a temporary machine platform with a pulley pivotally attached above the hoistway of the existing elevator, excluding at least the top floor, connect the pulley of this machine platform to a temporary car, and wrap the mourner's rope around it. A temporary winding-truck type winding machine is installed on the lower floor of the road to wind up and unwind the other end of the rope, and then the temporary carriage is raised and lowered by this temporary winding-truck type winding machine for service. During the service period, the hoisting machine of the existing elevator will be replaced with a new hoisting machine, and a new car will be assembled on the upper part of the temporary machine platform. This is achieved by removing the hoist and temporary car.

[Effect]

A temporary hoisting machine is installed on the lower floor of the hoistway, and the temporary car is operated by this hoisting machine to provide services during the remodeling work.

Therefore, even if modifications are required, it will not cause much of a problem for users, and since the temporary winding drum type hoist is installed on the lower floor of the hoistway, it is easy to carry it in and out, which improves work efficiency. Safety can be improved.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. 1st
In the figure, 1 is a hoistway, and a machine room 2 is formed in the upper part of this hoistway 1. A hoisting machine 3, a deflection wheel 5, and a control panel 6 for controlling the hoisting machine 3 are installed via a machine platform 4. It is provided.

7 is a guide rail for the counterweight installed vertically on the hoistway 1, 8 is a guide rail for the next car, 9 is a landing threshold, 10 is a landing door, 11 is a three-sided frame, and 12 is assembled at the top of the hoistway 13. This is a newly installed basket. 14 is a temporary machine stand whose one end is placed on the floor 15 of the 8th floor and the other end is in contact with the front wall of the hoistway 1; 16 is a pulley pivoted to the temporary machine stand 14; and 17 is a temporary machine stand. This is a bracket that fixes the machine stand 14. The existing rider lever 18 and counterweight 19 are suspended by a temporary main rope wrapped around the pulley 16, and in order to be serviced by the existing rider lever 18,
The counterweight 19 is tied to the winding 111423 of a temporary winding drum type winding machine n installed on the lowest floor of the hoistway (the first floor in this embodiment) by a second rope skin. ing. δ is a temporary winding machine for controlling the temporary winding drum type winding machine 4? UIJ Goban, 26 and the nail are buffers installed in the pit.

Now, the modification method of the present invention will be explained. Before remodeling the elevator, as is well known, the existing car 18 and counterweight 19 are suspended by the existing main rope wrapped around the sheep attached to the hoist 3 and the deflection wheel 5. Therefore, the existing passenger car 18 was raised to the 9th floor, which is the top floor, and then a chain block (not shown) was used to raise the 9th floor.
Lift it to a position slightly above the floor level, and use a counterweight 1.
9 to be supported by the shock absorber n, and remove the existing main rope. Next, operate the chain block to lower the existing carriage 18 and hold it at a position slightly above the 6th floor. Then, the temporary machine stand 14 to which the pulley 16 is pivoted is fixed at one end to the floor 15 of the 8th floor and at the other end to the front wall of the hoistway 1 via a bracket 17. Thereafter, a temporary main rope is wound around the pulley 16 and connected to the existing ride heel 18 and counterweight 19. This counterweight 19 is h
Adjust the weight so that it is lighter than the weight of the L car 18. A work floor for assembling the newly installed passenger car 12 is attached to the temporary machine stand 14. After installing a temporary winding drum hoist 22 with a winding drum attached and a temporary control panel 5 on the first floor floor 21, one end of the second rope was connected to the counterweight 19. Connect to the winding drum. In addition, the existing passenger car 1
Communication cables suspended from 8, cables for call buttons and position indicator lights (not shown) on each fort floor are connected to a temporary control panel 5.
The temporary elevator is now ready.

As a result, the remodeling work b1 is carried out in parallel with the service using the temporary elevator. That is, in the t- and A machine rooms 2, the machine platform 4, hoist 3, deflection wheel 5, and control panel 6 can be modified from existing ones to new ones, regardless of the operation of the temporary elevator. On the other hand, regarding the newly installed passenger car 12, a worker comes to a work floor attached to a temporary machine stand 14 and performs assembly work. Although the remodeling work will be carried out directly above the temporary elevator, a work floor that also serves as a partition floor will prevent accidents such as falling tools.

In this way, the interior of the machine room 2 was remodeled and the new passenger car 12 was installed.
Once the assembly is completed, the existing Sakae 18 will be stopped at the 7th floor, and the chain prop installed in the machine room 2 will be used to lift and hold it a little above the 7th floor. At this time,
The counterweight 19 is supported by a buffer n. In this state, the temporary main rope, work floor, pulley 16, temporary machine stand 14, etc. are removed. After the sono, operate the chain block to suspend the existing passenger car 18 to the first floor and remove it.
The temporary winding drum hoist n and control panel 5 are also removed.

Then, connect the newly installed main rope (not shown) to the newly installed hoist 3.
A counterweight 19 adjusted to a weight commensurate with the newly installed car 12 is hung around the sheave and deflection wheel 5 attached to the car. The remodeling work will be completed by transporting the removed existing parts and temporary parts outside.

According to the above-mentioned embodiment, the existing car can be raised and lowered by the temporary winding drum hoist provided on the lower floor of the hoistway. Therefore, it is only necessary to install the machine stand 14 with the pulley 16 near the top floor, and there is no need to lift the hoist to the top floor or assemble and remove them.
We can provide products that are superior in terms of workability and safety.

In the above embodiment, an existing car is used as a temporary car, but the existing car may be removed and a temporary car built in may be used. Alternatively, an existing counterweight may be used, or if necessary, one end of the main rope link may be directly connected to the winding trunk without using the existing counterweight. In addition, one winding drum type winding machine is installed.
It was installed on the 1WI floor, but depending on the safety, an underground sentry or 2
It may also be installed on the floor.

〔Effect of the invention〕

According to the present invention, a temporary machine platform equipped with a pulley is provided near the top floor of the hoistway, and a temporary winding-truck hoist is provided on the lower floor of the hoistway, making it possible to safely install and remove these machines. , and can be done efficiently. Furthermore, since the temporary winding drum hoist is installed on the floor (C), the installation work can be done before the existing elevator is shut down, and the number of days the elevator is out of service can be reduced.

[Brief explanation of the drawing]

FIG. 1 is an overall vertical sectional view of an elevator showing a state in which remodeling work is being performed using an elevator remodeling method according to an embodiment of the present invention. l...Hoistway, 3...Hoisting machine, 12.
...Newly installed car, 13...Top of hoistway,
14...Temporary machine stand, 16...Pulley, 18...Existing bundle basket, 19...Counterweight, addition...Temporary Main rope, 21...
...Lower floor of the hoistway, n...Temporary hoisting machine, n
・・・・・・Makidou, 夙・・・Second rope. Figure 1

Claims (3)

[Claims] (1) In the case of converting an existing elevator car and hoisting machine into a new car and hoisting machine, a temporary structure with a pulley pivoted above the hoistway of the existing elevator excluding at least the top floor A machine stand is provided, and the main rope connected to the temporary car is wound around the pulley of this machine stand, while the other end of the rope is wound and unwound on the lower floor of the hoistway. An upper machine is installed, and then the temporary car is raised and lowered by this temporary winding drum type hoist for service, and during this service period, the hoisting machine of the existing elevator is replaced with a newly installed hoisting machine. At the same time, a newly installed car is assembled on the upper part of the temporary machine stand, and then the temporary machine stand, the temporary winding drum hoist, and the temporary car are removed. How to remodel an elevator. (2) The method for remodeling an elevator according to claim (1), wherein the temporary car is an existing car. (3) Connect one end of the main rope to a temporary car and the other end to an existing counterweight, and make the weight of this counterweight lighter than the weight of the temporary car, and
A method for remodeling an elevator according to claim 1, characterized in that a second rope that is wound and rewound by the temporary winding drum hoist is connected to the existing counterweight.