JP2812590B2 - How to modify the elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator remodeling method for remodeling an existing elevator into a new elevator.

[0002]

2. Description of the Related Art When an existing elevator delivered in the past is converted into a new elevator, for example, Japanese Patent Application Laid-Open No. 61-550 / 1986
As shown in JP-A-79, first, the parts to be replaced and the parts to be added are carried to the top floor by the existing elevator,
The counterweight is placed on the pit buffer. Next, disassemble the car and remove it out of the hoistway, remove the main rope removed from the car frame from the hoisting machine and deflector car and lower it to the pit, and remove the other end of the main rope from the counterweight and remove it I do. Thereafter, the hoist and the control panel are also removed from the machine room.

Next, parts of the newly installed elevator which has been transported to the top floor in advance are to be mounted. First, a newly installed hoist, a new control panel are installed, and predetermined wiring is performed. Next, build a scaffold on the hoistway, assemble the new elevator in the same way as the initial installation work, wind the main rope around the hoisting machine, one end on the car frame, and the other end on the counterweight. Connected, thus putting the car in operation,
After that, the removed parts were lowered by the new elevator and the remodeling work was completed.

[0004]

In such a conventional remodeling method, it takes about two weeks to start work and return to the operation state by the newly installed elevator, during which service operation is stopped and traffic in the building is stopped. Had to rely on the stairs, causing great inconvenience to those involved. In addition, the official gazette states that a temporary elevator will be provided during this remodeling work and that the service will be performed by the temporary elevator. Therefore, a great deal of labor has to be spent, and waste has occurred.

An object of the present invention is to provide a method for remodeling an elevator, which can complete work in a short time without requiring a temporary elevator.

[0006]

According to the present invention, in order to achieve the above object, an existing car is supported by a receiving stand fixed to a guide rail while being lifted by a lifting device provided in a machine room. An intermediate work floor is formed in one of the upper and lower hoistways of the car, and another cradle is formed on the guide rail on the opposite side of the existing cab of the intermediate work floor, and at least on the other cradle. Assembling the new car, dismantling the existing car and removing it to the landing side, and replacing the control panel, hoist and deflector car in the machine room in parallel. It is characterized by.

[0007]

As described above, the method for remodeling an elevator according to the present invention comprises the steps of assembling a new car on one side of the intermediate work floor, dismantling and removing the existing car on the other side, and replacing work in the machine room. Because it was done in parallel,
The remodeling work time can be greatly reduced without the need for a temporary elevator as in the prior art, and by simultaneously proceeding in three places.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a flowchart showing a method of modifying an elevator according to an embodiment of the present invention. First, a preparatory operation 1 is performed as a first step, and this preparatory operation 1 includes at least an operation of attaching a signal line that is connected at one end to a control panel installed in a machine room and the other end is led to each floor. Therefore, a work that can be performed without hindering the service operation of the existing elevator or a work that can be performed during stoppage at night or the like is selected. The second stage to be performed next is the main construction 2 in which the service operation of the elevator is continuously stopped as shown in operations 3 to 10 described in detail below. Then, as the third stage, post-operation 1
2, the post-operation 12 is selected to be a non-standard operation or a task that can be performed during service operation of the new elevator or during a short stop. Next, details of these operations 1, 2, and 12 will be described with reference to FIGS.
2 will be described together.

FIG. 2 is a longitudinal sectional view of the elevator for explaining the preparatory work 1, and shows a state in which the elevator car 20 is operating or stopped at night or the like. An existing control panel 22, a hoisting machine 23, a deflecting wheel 24, and the like are arranged in the machine room 21, a car 20 is connected to one end of a main rope 25 wound around these, and a balance is connected to the other end. A weight 26 is connected. In the preparatory work 1, the machine room 2
1. Includes at least the work of leading out to each floor while fixing the unillustrated signal line, one end of which is connected to the newly installed control panel to be delivered later, to the inner floor of the hoistway. Work that can be done without affecting
Operations that can be performed during a suspension period such as nighttime may be added.

After that, the service operation of the elevator is stopped, and the main construction 2 is performed. The main construction 2 is first performed from the curing and the main rope removal work 3. That is, as shown in FIG. 3, the car 20 is stopped at a position where the car can be put on the car from the top floor, and the floor platform near the intermediate work floor 32 described later is cured by the curing means 27, respectively.
In the machine room 21, a lifting device 28 composed of a chain block or the like is constructed, and the lifting device 28 suspends the car 20 via a suspension rope 29, and at the same time, simultaneously mounts the counterweight 26 on the supporting material 30. Support with. Thereafter, the car 20 is slightly lifted by the lifting device 28, and the existing main rope 25 is removed.

Thereafter, as shown in FIG. 4, the car 20 is suspended by the lifting device 28 to a lower portion of the hoistway 31, that is, to the vicinity of the lowest floor. , And the support operation 4 for lowering the car 20 is performed in this manner. Next, the lifting device 28 and the hanging rope 29 in the machine room 21 are removed, and the construction work 5 of the intermediate work floor is performed as shown in FIG. That is, hoistway 3
In the vicinity of the upper part of the existing car 20 in FIG.
Is configured. Next, a pedestal 34 for supporting the newly installed car from the assembled intermediate work floor 32 is moved to the intermediate work floor 3.
2 fixed to the guide rail located at the top.

When the construction work 5 of the intermediate work floor is completed, the disassembly and assembly work 6 is now performed. As shown in FIG. 6, a new car 36 is assembled on a receiving stand 34 fixed to the guide rail from the intermediate work floor 32, and at the same time, the existing car 20 is assembled.
At the same time, dismantling and removing to the platform side. Further, as shown in FIG. 6, in parallel with these operations, in the machine room 21, the dismantling and removal of the existing control panel 22, the existing hoisting machine 23 and the existing deflecting vehicle 24, and the new control panel 3
7. The replacement work including the work of assembling and installing the new hoisting machine 38 and the new deflecting wheel 39 is performed. Accordingly, the work in three places, the upper part, the lower part, and the machine room 21 of the intermediate work floor 32 is performed in parallel, and the working time is further reduced. In addition, in the above-mentioned configuration work 5, connection work of signal lines for each floor is performed.

Thereafter, as shown in FIG. 7, the car hanging operation 7 is performed. The lifting device 28 is assembled again in the machine room 21 and connected to the newly installed car 36 via the hanging rope 29.
With the lifting device 28, the newly-installed car 36 is lifted to the vicinity of the top floor, and the cradles 34 and 35 are dismantled and removed. In this state, the new main rope 40 is hung on the new hoisting machine 38 and the new deflecting car 39, and one end thereof is connected to the new car 3
6, a frame scaffold 33 is formed at the lower part of the hoistway, the intermediate work floor 32 is dismantled by using the frame scaffold 33, and a new main rope 40 is constructed by using the frame scaffold 33.
And the counterweight 26 are connected. Then, as shown in FIG. 8, the lifting operation 8 of the lifting device is performed. That is, the lifting device 28 of the machine room 21 is dismantled and removed, and the curing means 27 provided on each floor is removed. Next, as shown in FIG. 9, as the test run and adjustment work 9, the car 36 is lowered, the support member 30 supporting the counterweight 26 is removed, and the test run and adjustment of the new car 36 are performed.

Thereafter, as shown in FIGS. 10 and 11, the entrance remodeling work 10 is performed.
A work floor 41 is provided in the upper part of the car, and the entrance of each floor is modified while the car 36 is lowered, for example, an existing floor door is replaced with a new floor door. As for the lowest floor, as shown in FIG. 11, the platform is cured by the curing means 27 to reconstruct the framed scaffold 33 in the hoistway 31, and the frame scaffold 33 is used while using the framed scaffold 33. Remove it.

After the end of these series of operations, a post operation 12 is performed as shown in FIG. This post-operation 12 is performed while the new elevator is in operation or at an appropriate time thereafter, and the new elevator is stopped for a short time. For example, non-standard work such as changing the counterweight 26 to a new product or a short stoppage is performed. Other simple tasks that can be done inside.

In the above-described embodiment, a new car 36 is constructed on the cradle 34 provided above the intermediate work floor 32, and the existing cab 20 is supported on the lower cradle 35 for disassembly and removal. However, the support on the cradle 34, 35 is reversed, that is, the existing car 20 is placed on the upper cradle 34 shown in FIG.
, And a new car 36 may be assembled to the lower cradle 35. Further, the intermediate work floor 32 is not limited to the illustrated position of the hoistway 31, and may be configured to be higher. In addition, the time for removing the curing means 27 in the above-described embodiment is not limited to the case shown in the figure, and can be performed at an appropriate time. Further, as shown in FIG. It is also possible to configure without dismantling from the time shown in FIG.

[0017]

As described above, according to the present invention, an intermediate work floor is formed in a hoistway, and an assembling operation of a new car performed on one of the upper and lower sides of the intermediate work floor and an existing car performed on the other side. The step of performing dismantling and removal work in parallel with the replacement work in the machine room eliminates the need for provision of a temporary elevator, and greatly reduces the time required for remodeling due to the work performed in parallel. be able to.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating a method for retrofitting an elevator according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a hoistway showing a preparatory operation of FIG.

FIG. 3 is a vertical sectional view of a hoistway showing a curing operation and a main rope removing operation of the main construction of FIG.

FIG. 4 is a longitudinal sectional view of a hoistway showing a car-unloading support operation of FIG. 1;

FIG. 5 is a vertical sectional view of a hoistway showing a construction work of the intermediate work floor of FIG. 1;

6 is a vertical sectional view of the hoistway showing the disassembly and assembly work of FIG.

7 is a longitudinal sectional view of the hoistway showing the car hanging operation of FIG.

FIG. 8 is a vertical sectional view of a hoistway showing a removal operation of the lifting device of FIG. 1;

FIG. 9 is a longitudinal sectional view of the hoistway showing the test operation and the adjustment work of FIG. 1;

FIG. 10 is a vertical sectional view of a hoistway showing the entrance remodeling work of FIG.

FIG. 11 is a vertical sectional view of a hoistway showing an entrance remodeling operation of FIG.

FIG. 12 is a longitudinal sectional view of the hoistway showing the post-operation of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 Preliminary work 2 Main work 3 Curing and removal of main ropes 4 Support for unloading and supporting the car 5 Construction work for the intermediate work floor 6 Dismantling and assembling work 7 Hanging the car 8 Work for removing the lifting device 9 Trial run and adjustment work 10 Remodeling the entrance Work 12 Post-work 20 Existing car 21 Machine room 25 Existing main rope 27 Cradle 28 Lifting device 31 Hoistway 32 Intermediate work floor 33 Frame scaffold 36 New car 37 New control panel 40 New main rope

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Goko 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Within Hitachi Building System Service Co., Ltd. (72) Inventor Shigenobu Kimura 832-2 Horiguchi, Katsuta-shi, Ibaraki 2 Hitachi, Ltd. Within the Beta Engineering Co., Ltd. (72) Inventor Kanehisa 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Within Hitachi Building System Services (72) Inventor Fuminori Kikuchi 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Hitachi Building, Ltd. (56) References JP-A-63-218493 (JP, A) JP-A-5-105356 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B66B 7/00

Claims (2)

(57) [Claims] 1. A control panel for at least a control panel of the machine room, wherein a car is connected to one end of a main rope provided via a hoisting machine and a deflector wheel in a machine room, and a counterweight is connected to the other end. In the method of remodeling an elevator for exchanging the car with a hoisting machine and a deflecting car and the above-mentioned car, the existing car is lifted by a lifting device provided in the machine room, and is fixed to a guide rail fixed to a guide rail. Supporting, forming an intermediate work floor on one of the upper and lower hoistways of the existing car, and configuring another receiving stand on the guide rail on the opposite side of the existing work cage on the intermediate work floor, In parallel with the work of assembling the new car on the cradle, dismantling the existing car and removing it to the landing side, and replacing the control panel, hoist and deflector car in the machine room Elevating, comprising the step of performing How to modify the data. 2. The method for remodeling an elevator according to claim 1, wherein after the above-mentioned steps, the doorway is remodeled together with the operation using the new car.