JPS6374883A - 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] [Industrial Application Field] This invention relates to a method for remodeling an existing elevator into a new elevator. [Prior Art] Elevators are considered important as a means of transportation within buildings. This elevator, which is installed in all buildings with five or more floors, has been in operation for many years, causing damage to the first cage, deterioration of performance, obsolescence of design, or new needs. For example, elevators may be modified due to the need to increase speed or save energy. Conventionally, in order to carry out this modification, the operator was completely stopped for a certain period of time, for example, about one month, and during this period, the existing passenger car, one hoist, parts of the entrance and exit, etc. were removed, and then the new passenger car was installed. I was assembling the 1 hoisting machine, entrance/exit parts, etc.

This method does not pose much of a problem in buildings with two or more elevators, as the elevators can be shut down and remodeled one by one, but in the case of a small building with only one elevator, it will take a long time. It will be suspended for a period of
There was a problem in that it caused a lot of inconvenience to users.

For this reason, it has recently been proposed to carry out partial remodeling using only Saturdays and Sundays as holidays.
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. Also, soil.

Another problem was that it was difficult to secure workers for 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 existing or temporary cars for service. It has been proposed that a new hoist and car be assembled during this service period. With this method, the elevator only needs to be stopped 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 1, 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 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 room at the top of the hoistway;
The aim is to eliminate the removal process and improve the quality and safety associated with this work.

[Means for solving problems]

The above purpose is for at least the top floor of the existing elevator (
A temporary machine stand with a pulley pivotally attached is installed above the hoistway, 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 around the lower part of the hoistway. A temporary hoisting machine is provided for removing and rewinding the car, and then the temporary car is raised and lowered for service by this temporary hoisting machine, and during this service period, the hoisting machine of the existing elevator is replaced with a newly installed hoisting machine, and , A new car will be assembled on top of the temporary machine stand, and then the temporary machine stand will be assembled.

[Operation] Achieved by removing the first hoisting car. A temporary hoisting machine is provided at the bottom of the hoistway, and the hoisting machine operates the temporary hoisting machine to perform service during the remodeling work.

Therefore, even if modifications are required, it will not cause much of a problem for users, and since the temporary hoist is installed at the bottom of the hoistway, it will not only be easy to carry it in and out.
It is possible to improve work efficiency and safety.

〔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. deflection]i5. A control panel 6 for controlling the hoisting machine 3 is also provided. Reference numeral 7 indicates a counterweight guide rail installed in the hoistway l, 8 indicates a guide rail for the car, 9 indicates the landing threshold, 10 indicates the landing door, 11 indicates the three-sided frame, and 12 is assembled with the top part 13 of the hoistway. 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 this temporary machine stand 14, and 17 is a temporary machine stand. This is a bracket that fixes the machine stand 14. The existing car 18 and counterweight 19 are attached to a temporary main row 12 that is wound around a pulley 16.
In order to service the existing car 18, the winding drum 23 of a temporary hoist 22 installed at the lowest part 21 of the hoistway and the counterweight 19 are connected by a second row 124. are doing. 25 is the temporary hoisting machine 2
This is a temporary control panel for controlling 2.The method of modifying the present invention will now be described. Before remodeling the elevator, as is well known, the existing passenger weight 18 and counterweight 19 were 1.
It is suspended by an existing main rope (not shown) wrapped around the sheep attached to the hoisting machine 3 and the deflection wheel 5. First, the existing passenger car 18 was raised to the 9th floor, the top floor.
Next, the existing car 18 was lifted to a position slightly above the 9th floor using a chain block (not shown) installed in the machine room 2, and the counterweight 19 was lowered to support it with a shock absorber (not shown). Remove the existing main rope. Next, the chain block is operated to lower the existing car 18 and hold it at a position slightly above the 6th floor. and,
A temporary machine stand 14 to which a pulley 16 is pivoted is fixed at one end to the floor 15 of the eighth floor and at the other end to the front wall of the hoistway 1 via a bracket 17. After that, slide on the temporary main rope 20*1
6 and connect the existing ride weight 18 and counterweight 19. This counterweight 19 is the existing bundle or 1
8. Also, a work floor for assembling the newly installed car 12 is attached to the temporary machine stand 14. Next, the temporary hoist 2 with the first winding drum 23 attached
2 and a temporary control panel 25 are carried from the first floor to the lowest part 21 of the hoistway and installed, and then connected to the winding drum 23 at one end of the second rope 24 connected to the counterweight 19. moreover,
Communication cables suspended from the existing car 18, cables for call buttons and position indicator lights for each floor, etc. (none of which are shown) are connected to the temporary control panel 25, and preparation for the temporary elevator is completed.

As a result, the remodeling work will be carried out in parallel with the service provided by the temporary elevator. Namely.

In machine room 2, regardless of the operation of the temporary elevator,
Machine stand 41 hoisting machine 3, deflection wheel 5. The control panel 6 can be modified from an existing one to a new one. On the other hand, regarding the newly installed car 12, a worker rides on a work floor attached to a temporary machine stand 14 and performs assembly work. Although 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 inside of the machine room 2 was remodeled and the new car 12 was installed.
When the assembly of 1 is completed, the existing bundle basket 18 is stopped at the 7th floor and the chain block installed in the 1 machine room 2 is used to move the 7
Lift it up to a position slightly above the floor level and hold it there. At this time, the counterweight 19 is supported by a buffer (not shown). In this condition.

Temporary main row 1201 work floor, pulley 16. Remove the temporary machine stand 14, etc. Thereafter, by operating the chain hoist, the existing carriage 18 was suspended to the first floor and removed, and the temporary hoist 22. The control panel 25 is also removed.

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

According to the above-mentioned embodiment, an existing car can be raised and lowered by the temporary hoist installed at the lower part of the hoistway. Therefore, near the top of the hoistway, it is only necessary to install a temporary machine stand 14 with a pulley, and there is no need to lift the hoist to the top or assemble and remove the kneading machine.
It can provide superior workability and safety.

In the above embodiment, the existing bundled basket is used as a temporary car, but the existing bundled basket may be removed and a temporary car exclusively used may be incorporated and used. Although the existing counterweight is used, if necessary, one end of the main rope 20 may be directly connected to the winding drum 23 without using the existing counterweight (O [Effects of the Invention] The present invention According to the company, a temporary machine room equipped with a pulley was installed near the top of the hoistway, and a temporary hoisting machine was installed at the bottom of the hoistway, making it possible to install and remove the konera safely and efficiently. be able to.

[Brief explanation of the drawing]

FIG. 1 is an overall vertical cross-sectional view of an elevator showing a state in which it is being remodeled using a method for remodeling an elevator according to an embodiment of the present invention. 1...Hoistway, 3...Hoisting machine, 12.
... Newly installed car, 13 ... Upper part of hoistway, 14 ... Group/temporary machine platform, 16 ... Pulley,
18... Existing car, 19... Balance weight, 20... Temporary main rope, 21. Old.
・Lower part of the hoistway, 22... Temporary hoisting machine, 23...
... Winding trunk, 24 ... 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 platform is provided, a main rope connected to a temporary car is wound around a pulley of the machine platform, and a temporary hoist is provided at the bottom of the hoistway to wind and unwind the other end of the rope. Thereafter, the temporary car is raised and lowered by this temporary hoisting machine for service, and during this service period, the hoisting machine of the existing elevator is replaced with a new hoisting machine, and the upper part of the temporary machine platform is A method for remodeling an elevator, comprising assembling a new car, and then removing the temporary machine platform, the temporary hoist, and the temporary car. (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
The method for remodeling an elevator according to claim (1), characterized in that a second rope that is wound and rewound by the temporary hoist is connected to the existing counterweight.