JPH0234873B2 - - 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. 5 and 6.

Figure 5 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. 6 shows a new elevator in which a part of the existing elevator shown in FIG. 5 has been replaced. Here, it is rare that all parts of an existing elevator are replaced. In FIG. 6, parts with the same reference numerals as those in FIG. 5 indicate that existing products will continue to be used, and parts to be replaced and newly added parts are shown with an "a" appended to the numerical code.

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

Additionally, the added parts include a floating stand 14a that supports both ends of the machine stand 5, a hoist stand 15a to which the hoist 3a is attached, and the hoist stand 15a and the machine. Anti-vibration rubber 16a provided between the stand 5 and the control panel 6a
It is.

These additional parts are installed on the machine platform 5 by installing floating platforms 14a at the bottom of both ends of the machine platform 5 to prevent noise from being transmitted to the living room (not shown) near the machine room 2 by remodeling it into a new elevator. A vibration isolating rubber 16a is interposed to raise the center part and to prevent vibrations generated from the hoisting machine 3a from being directly transmitted to the machine stand 5.

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 when a newly installed car 8a is installed, the weight of the counterweight 9 is not increased or decreased, and 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. For the threshold 13, an existing product is often 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 from 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. Furthermore, 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.

First, the floating stand 14a is placed under the machine stand 5 in the machine room 2. Anti-vibration rubber 1 is placed on this machine stand 5.
A hoisting machine stand 15a is placed via the hoisting machine 6a, and the hoisting machine 3a is placed on this hoisting machine stand 15a. Also, the control panel 6
A is also brought in and connected as required. Next, a scaffold (not shown) is set up in the hoistway 1, and the car 8a is assembled in the same manner as in normal installation work. Next, the main rope 7
a around the hoisting machine 3a, and one end is attached to the car frame 80a.
Then, attach the other end to the counterweight 9. Slightly raise the counterweight 9 and return it to the normal position,
The car 8a is put into operation.

Next, the remodeling work is completed by lowering the removed existing parts using the newly installed cage 8a.

[Problem that the invention seeks to solve]

As mentioned above, after lowering the counterweight 9 of an existing elevator, it takes about 2 hours to remodel it into a new elevator and return it to operation again.
It took weeks. During this period, transportation within the building had to rely on stairs, causing great inconvenience to those involved. This invention aims to alleviate such inconvenience for those involved.

[Means for solving problems]

In the temporary elevator according to the present invention, when remodeling an existing elevator into a new elevator by removing parts or adding new parts, a car for the new elevator is fixed to an upper hoistway, and a hoistway lower than this car is fixed. A temporary hoist was installed in the elevator, and the hoist lifted and lowered a temporary car to service a portion of the floor that was previously serviced by the existing elevator.

[Effect]

In this invention, the temporary elevator serves during the period when an existing elevator is being remodeled into a new elevator, so even if the remodeling work is prolonged, traffic within the building can be handled without any problem.

〔Example〕

1 to 4 show an embodiment of the present invention,
In the figure, the same reference numerals as in FIGS. 5 and 6 indicate the same parts.

In other words, parts marked with numbers only indicate parts used in the existing elevator, parts marked with a code consisting of a number and "a" indicate parts to be replaced or added to the existing parts, Parts labeled with numbers and "S" indicate parts of the temporary elevator that will be used temporarily during the remodeling period. In Figures 1 and 2, 3S is a hoisting machine temporarily installed in the hoistway 1 at a height equivalent to the floor 119 of the 9th floor, 30S is a hoisting motor, 4S is a temporary diversion wheel, and 5S is a hoisting machine whose one end is 9 a temporary machine stand placed on the floor 119 of the floor, the other end of which is in contact with the front wall of the hoistway 1;
6S is a temporary control panel installed on this machine stand 5S, 7S is wrapped around the hoisting machine 3S and deflection wheel 4S, and the existing car 8 is attached to one end, and the existing counterweight 9 is attached to the other end. This is a temporary main rope with a rope attached to it, which moves up and down at a speed of about 30 to 45 meters per minute.

Here, how to hang the main rope 7S will be described.

While the existing car 8 and counterweight 9 are still suspended from the existing hoist 3, first, the counterweight 9 is lowered and supported by the buffer 103. At this time, the car 8 is stopped at a position slightly higher than 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. Next, while operating the chain block, the car 8 is lowered and stopped at a position slightly higher than the floor 117 of the seventh floor. In this state, the temporary main rope 7S is wound around the hoist 3S and the deflection wheel 4S, and the car 8 is attached to the cut main rope 7S. When the car 8 is lowered and the floor 117 of the 7th floor is aligned with the floor of the car 8, the distance TC from the top of the car frame 80 to the bottom of the machine stand 5S (hereinafter referred to as top clearance) is approximately 118 of the 8th floor. It corresponds to the distance of 9th floor 119 from
Usually grows from 280 to 350 cm. This top clearance TC is stipulated by the Building Standards Act enforcement order to be 120 centimeters or more, and by hanging the main rope 7S as described above, the above enforcement order can be satisfied.

15S is the hoisting machine stand where hoisting machine 3S is installed,
It is placed on the machine stand 5S via a vibration-proof rubber 16S. Support beams 22S are fixed to the wall below the elevator entrance on the 9th floor 119 and to the wall of the hoistway 1 facing this wall, and support the other end of the machine platform 5S. 23S is floor 12 on the 10th floor.
These are support beams fixed to the hoistway 1 wall at the entrance and exit 50 to 100 cm below zero and the wall opposite this wall. 24S is a work floor supported by this support beam 23S.

In Fig. 3, 300 is an existing call button;
301S is a call registration circuit which is well known, so its details will be omitted. 311S to 317S are on the 1st floor 11
Nominal relay contacts corresponding to floors 1 to 7 117, 3
Reference numeral 31 indicates a normally open contact point of a rise start button, which is provided in the car 8 of the existing elevator. Similarly, 332 is a normally closed contact, and 333 is a normally open contact of a lowering start button, which are provided on the car 8. 334 is also a normally closed contact, 400S is a control power supply, (+) and (-)
is a bus bar, 402 is a safety circuit used in the existing elevator, 403S is a contactor that biases the hoisting motor 30S in the upward direction, 4031S is its normally open auxiliary contact, and 404S is a contactor that biases the hoisting motor 30S in the downward direction. 4041S is its normally open auxiliary contact, 405S is its stop relay, 4051S is its normally open contact, and 4052S and 3053S are its normally closed contacts. 411S to 417S are position switches provided in the hoistway to stop the temporary car 8 at the first floor 111 to the seventh floor 117.

As shown in Figs. 1 to 3, once the temporary elevator is installed, regardless of the equipment in the machine room 2,
Moreover, even if the newly installed car 8a is not installed, the car 8 is driven by the hoisting machine 3S to perform lifting and lowering services from the first floor 111 to the seventh floor 117.

That is, when the call button 300 is pressed, the corresponding call is registered. If the call for the first floor 111 is registered, the relay contact 311S is closed. When the lowering activation button 334 is pressed, the contactor 404S is energized and the car 8 is lowered. Further, the normally open contact 4041S is closed and the contactor 404S is self-supported. Cart 8 is on the first floor 111
When it arrives, the position switch 411S is closed,
Stop relay 405S is (+)-411S-311
It is energized by the S-405S-(-) circuit. This energization opens the normally closed contact 4053S and deenergizes the contactor 404S. Due to this de-energization, the hoisting motor 30S is also de-energized, and the car 8 is moved to the first floor 111.
Stop at.

The same applies to the ascending operation, and the explanation will be omitted.

Remodeling work will proceed in parallel with the above-mentioned operation of the temporary elevator.

That is, in Fig. 4, the newly installed hoisting machine 3
a, control panel 6a, floating stand 14a, hoisting machine stand 15
a. The anti-vibration rubber 16a is replaced with the existing one in the same manner as in the conventional example shown in FIGS. 5 and 6.
The newly installed car 8a is assembled by a worker on the work floor 24S, and is fixed slightly above the 10th floor 120. During this assembly process, traffic within the building will be handled by temporary elevators. In addition, remodeling work will be carried out directly above the temporary elevator, but the work floor 2
Because of the 4S, even if screws, for example, fall, they will not fall into the basket 8.

Next, once you have finished replacing the parts with new ones,
The temporary elevator is stopped, and as shown in FIG.
Remove S. Furthermore, a car 8, a car frame 80, a hoist 3S, a deflection wheel 4S, a machine stand 5S, and a control panel 6.
S, hoisting machine stand 15S, anti-vibration rubber 16S, support beam 2
Remove 2S, 23S and work floor 24S. After that, the main rope 7a for new installation is wound around the hoist 3a and the deflection wheel 4a, and the car 8a and the counterweight 9 are tied together.
hang. When the car 8a is accurately placed on the floor 120 of the 10th floor, the bottom surface of the counterweight 9 is on the shock absorber 10.
3 and located above by a predetermined distance. The remodeling work will be completed by transporting the removed existing equipment and temporary equipment outside.

In the embodiments shown in Figures 1 to 4, traffic within the building depends on the stairs only during the period until the temporary elevator is installed and during the period when the temporary elevator is removed. The upper machine 3S, control panel 6S, etc. can be placed on the machine stand 5S in advance. Therefore, during the period when the temporary elevator is installed, the machine platform 5S will be moved to hoistway 1.
The work time required to pull it in and fix it to the support beam 22S is approximately equal to the work time required to attach the main rope 7S. In addition, the period for removing the temporary elevator is
This time is approximately equal to the time required to remove the machine stand 5S on which the hoisting machine 3S and the like are mounted, the support beam 22S, the car 8, and the attachment of the main rope 7a to the counterweight 9. However, since many of these tasks can be performed in parallel, the removal task can be completed in a short time.

Therefore, according to the above embodiment, the temporary elevator is used until the equipment and car in the machine room of the new elevator are installed, so it is possible to significantly shorten the period during which the only transportation within the building is by stairs. can.

Furthermore, if the time of day is considered, such as installing and dismantling temporary elevators at night when they are less frequently used, remodeling can be done with little inconvenience to customers.

By the way, in the above example, the 7th floor 117~
It is not possible to reach 120 on the 10th floor by the temporary elevator, so we have no choice but to rely on the stairs. However, the 3rd and 4th floors are within the range that can be ascended and descended by stairs, which is acceptable.

In the above embodiment, the existing elevator car is used as the temporary elevator car, but a temporary elevator car may also be used.

Further, in order to reduce the weight of the hoisting machine of the temporary elevator and to facilitate installation work, the hoisting motor may have a small capacity by lowering the lifting speed.

Furthermore, in the above embodiment, the car 8 is modified, but the car 8 can also be used to replace other parts, such as an existing hoist placed in a machine room, without being modified. It is something.

〔Effect of the invention〕

As described above, when an existing elevator is remodeled into a new elevator by replacing all or part of the existing elevator except for the guide rails or by adding new parts, the present invention allows the car for the new elevator to be installed in the upper hoistway. A temporary hoisting machine is installed in the hoistway below this car, and this hoisting machine engages the temporary car with the guide rail and drives it, thereby lifting the floor that was serviced by the existing elevator. A part of the floor was made available for service. Therefore, during the remodeling period, temporary elevators can handle traffic within the building, and the inconvenience for elevator users can be reduced.

In addition, since the rails of the existing elevator are used when installing the temporary elevator, it also has the effect of shortening the construction period.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention,
1 is a longitudinal sectional view of the hoistway, FIG. 2 is a sectional view taken along the line -- in FIG. 1, FIG. 3 is a control circuit diagram, and FIG. 4 is a longitudinal sectional view of the hoistway. 5 and 6 show a modification of a conventional elevator, FIG. 5 is a vertical sectional view of a hoistway showing an existing elevator, and FIG. 6 is a view corresponding to FIG. 5 of a newly installed elevator. In the figure, 1 is a hoistway, 3S is a temporary hoist, 8 is an existing car, 8a is a new car, 100 is a car guide rail, 101 is a counterweight guide rail, 111 to 120 are from the 1st floor Indicates the 10th floor. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1. For equipment used when remodeling an existing elevator into a new elevator by removing all or part of the existing elevator except for the guide rail and replacing it with new parts or adding new parts, the upper part of the existing elevator can be lifted and lowered. The car to be used as the new elevator is fixed to the road, a temporary hoist is installed in the hoistway below this hoist, and the hoist is engaged with the guide rail in the lower hoistway below this hoist. This temporary elevator is characterized in that a temporary car is housed in the hoisting machine, and the hoisting machine raises and lowers the temporary car to service a part of the floor that was being serviced by the existing elevator.