JPH02271B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a temporary elevator that is used temporarily when an existing elevator is remodeled into a new elevator.

[Prior art]

First, the modification of a conventional existing elevator will be described with reference to FIGS. 4 and 5.

Figure 4 shows an existing elevator, in which 1 is a hoistway, 2 is a machine room provided above the hoistway 1, and 3 and 4 are attached to a machine stand 5 provided in the machine room 2. 6 is a control panel that controls the hoisting machine 3; 7 is the hoisting machine 3 and the deflecting wheel 4;
The main rope is wrapped around each car, and the car 8 is attached to one end.
However, a counterweight 9 is attached to the other end and moves up and down within the hoistway 1 to service the car 8 from the 1st floor 111 to the 10th floor 120. 11 is a three-sided frame, 12 is a landing door that opens and closes the entrance, 13 is a sill that guides this landing door 12, 80 is a car frame,
Reference numerals 100 and 101 are guide rails for the car and counterweight, and 102 and 103 are buffers.

Next, FIG. 5 shows a new elevator in which a part of the existing elevator shown in FIG. 4 has been replaced. Here, it is rare that all parts of an existing elevator are replaced. In FIG. 5, parts with the same reference numerals as those in FIG. 4 indicate that existing products will continue to be used, and parts to be replaced and newly added parts are shown with a numerical code "a" attached.

In other words, the parts to be replaced are generally the hoisting machine 3, the deflection wheel 4a, and the main rope 7, which are significantly worn out.
a, a car 8a and a car frame 80a.

In addition, the added parts include a floating stand 14a that supports both ends of the machine stand 5, a hoisting machine stand 15a to which the hoisting machine 3a is attached, and this hoisting machine stand 15a in order to improve riding comfort and service. Anti-vibration rubber 16a provided between machine stand 5 and control panel 6
It is a.

These additional parts will be installed on the machine stand 5 by installing floating stands 14a at the bottom of both ends of the machine stand 5 so that noise will not be transmitted to the living room (not shown) near the machine room 2 by remodeling it into a new elevator. In order to float the center part of the hoisting machine 3a and to prevent vibrations generated from the hoisting machine 3a from being directly transmitted to the machine stand 5,
A vibration isolating rubber 16a is interposed therebetween.

Also, some of the equipment on the control panel 6a is worn out,
Normally, the control panel 6a is replaced with a new control panel 6a in order to have more functions than the conventional one as control density improves.

Since the elevator car 8a is normally the largest size that can be accommodated in the hoistway 1,
The newly installed car 8a is often the same size as the existing car 8. Therefore, even in the case of a newly installed car 8a, the weight of the counterweight 9 is not increased or decreased, and almost the existing one can be used as is.

Further, the three-sided frame 11 and the landing door 12 are not replaced, but are usually only repainted. The existing sill 13 is also used as is.

Next, we will discuss the modification work.

First, parts to be replaced and additional parts will be transported to the top floor using the existing elevator. When the transport is finished, lower the counterweight 9 and remove the buffer 103.
Place it on. Next, the car 8 is disassembled and removed to the outside of the hoistway 1, and the car frame 80 is removed from the main ropes 7. The main rope 7 is also removed from the hoisting machine 3 and deflection wheel 4 and lowered into the pit, and further removed from the counterweight 9 and removed. Further, the hoisting machine 3 and the control panel 6 are also removed from the machine room 2.

Next, parts for the new elevator that were previously brought to the top floor will be installed.

This installation work is first carried out in the machine room 2.
Place the floating stand 14a under the machine stand 5. A hoisting machine stand 15 is placed on this machine stand 5 via a vibration isolating rubber 16a.
a, and place the hoist 3a on this hoist stand 15a. Additionally, the control panel 6a is brought in and predetermined wire connections are made.

Next, work on hoistway 1 is carried out, for example, in
Either by the method disclosed in Publication No. 108671 or by the same method as normal installation work. First, the car frame 80a and the car 8a are assembled. Next, the main rope 7a is wound around the hoist 3a, and one end is attached to the car frame 80a.
Attach the other end to the counterweight 9. The remodeling work is completed by slightly raising the counterweight 9, returning it to its normal position, and lowering the removed existing parts using the newly installed cage 8a.

[Problem that the invention seeks to solve]

As shown above, the counterweight of the existing elevator 9
It took about two weeks to lower the elevator, convert it into a new elevator, and get it back up and running. During this period, transportation within the building had to be done via stairs, which was a great inconvenience for everyone involved. This invention is intended to alleviate such inconvenience for those involved.

[Means for solving problems]

The temporary elevator according to the present invention has one end installed on the floor served by the elevator, a temporary machine platform straddling the hoistway, and a temporary hoisting machine mounted on a trolley that rolls on the temporary machine platform. It is something.

[Effect]

In this invention, the temporary hoist is carried into and taken out of the hoistway and set at a predetermined position by rolling the cart.

[Embodiments of the invention]

1 to 3 show an embodiment of this invention,
The same reference numerals as in FIGS. 4 and 5 indicate the same parts.

In the figure, 5S is floor 119 side hoistway 1 on the 9th floor.
It is a temporary machine platform inserted into the hoistway, and its end is fixed to the bracket 22S attached to the hoistway wall, and it straddles the hoistway 1. It is made of I-beam steel. Reference numeral 60 denotes a movable trolley that is placed astride a pair of temporary machine stands 5S via a trochanter 60a, 3S is a temporary hoisting machine placed on this trolley 60 via a hoisting machine 15S, and the main rope 7S The car 8 is driven through the . 61 is a vibration-proof rubber that supports and fixes the temporary hoisting machine stand 5S, and 70 is a floor plate that is pivotally connected to the temporary machine stand 5S and closes the gap in the hoistway 1. 6S is a temporary control panel, and 24S is a workbench for the newly installed car 8a and the ceiling of the temporary elevator.

Next, a method for installing the temporary hoist 3S will be described.

First, while the existing car 8 and counterweight 9 are still suspended from the existing hoist 3, the counterweight 9 is lowered and supported by the buffer 103. At this time, the car 8 is stopped slightly above the top floor 120. A chain block (not shown) is installed in the machine room 2, and after suspending the car 8 from the chain block, the main rope 7 is removed from the car 8 and the counterweight 9. Next, while operating the chain block, lower the car 8 and stop it slightly above floor 117 on the 7th floor. This is generally done by using an emergency stop device (not shown) to engage the guide rail 100. In this state, the temporary machine platform 5S is installed across the hoistway 1, and the trolley 60 is engaged with the temporary machine platform 5S. Furthermore, this trolley 6
Place the temporary hoist 3S on the 0. That is, the second
Install as shown by the dashed line in the diagram. After that, trolley 6
The temporary hoist 3S is carried into the hoistway 1 by rolling the
Place and fix it.

After that, move the main rope 7S to car 8 - temporary hoist 3S -
Connect to the counterweight 9 and restore the emergency stop. The car 8 is suspended by a temporary hoist 3S and controlled by a control panel 6S to handle traffic within the building during the remodeling work.

Once the new car 8a and the equipment in the machine room 2 have been replaced, the main rope 7S is removed and the car 8 is removed in the same manner as described above. In parallel with this removal work, the temporary hoist 3S is moved to floor 119 on the 9th floor.
Furthermore, the temporary machine stand 5S will be removed.

According to the above embodiment, the temporary hoisting machine 3S is
Since the loading and unloading into and out of the hoistway 1 is carried out by the 0, it can be easily carried out in a short time.

In addition, since the temporary machine stand 5S is sufficiently long, the part left on the floor 119 when it is placed over the hoistway 1 is longer than the part of the hoistway 1, so when the temporary machine stand 5S is carried into the hoistway 1. However, there is no possibility that the vehicle will fall into hoistway 1.

〔Effect of the invention〕

As described above, in this invention, a temporary machine platform is installed astride the hoistway, and the trolley on which the temporary hoisting machine is mounted is rolled onto the temporary machine platform to carry in and take out the temporary machine platform. It is easy to install and remove the hoisting machine, and by extension, temporary elevators can be installed and removed in a short period of time during remodeling work, which has the effect of reducing inconvenience to building users.

[Brief explanation of drawings]

1 to 3 show an embodiment of this invention,
FIG. 1 is a longitudinal cross-sectional view of the hoistway showing the overall configuration, FIG. 2 is a longitudinal cross-sectional view of the hoistway showing the main parts, and FIG. 3 is a cross-sectional view of FIG. 1. FIGS. 4 and 5 show a conventional remodeling work of an existing elevator, and FIG. 4 is a vertical cross-sectional view of the hoistway of the existing elevator, and FIG. 5 is a vertical cross-sectional view of the hoistway of a new elevator. In the figure, 1 is a hoistway, 3S is a temporary hoist, 5S is a temporary machine stand, 100 is a car guide rail, 10
1 is a guide rail for counterweight, 111-12
0 is the floor from the 1st floor to the 10th floor. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1. When converting an existing elevator that serves multiple floors into a new elevator by removing all or part of it except for the guide rail and replacing it with new parts or adding new parts. The device used is characterized in that a temporary machine platform with one end installed on the floor is placed astride the hoistway, and a temporary hoist is mounted on a trolley that rolls the temporary machine platform. Temporary elevator. 2. The temporary elevator according to item 1, wherein the length of the portion of the temporary machine platform that remains on the floor is longer than the length of the portion that straddles the hoistway.