JPH0234874B2 - - 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. 6 and 7.

Figure 6 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. 7 shows a new elevator in which a part of the existing elevator shown in FIG. 6 has been replaced. Here, it is rare that all parts of an existing elevator are replaced. In Fig. 7, parts with the same symbols as those in Fig. 6 indicate that existing products will continue to be used, and replaced parts and newly added parts are shown with an "a" added to the numerical code. ing.

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 in the machine platform 5 by installing floating platforms 14a at the bottom of both ends of the machine platform 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. A vibration isolating rubber 16a is interposed in order to float the center part and to prevent vibrations generated from the hoist 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 in the case of a newly installed car 8a, the existing counterweight 9 can be used as is without any increase or decrease in its weight.

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 are attached.

First, the floating stand 14a is placed under the machine stand 5 in the machine room 2. Anti-vibration rubber 1 is placed on top of 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, hoistway 1
Scaffolding (not shown) is erected, and the car 8a is assembled in the same way as normal installation work. Next, the main rope 7a
is wound around the hoisting machine 3a, and one end is attached to the car frame 80a.
Then, attach the other end to the counterweight 9. The counterweight 9 is slightly raised and returned to its normal position, and the car 8a is brought 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 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 into operation. During this period, transportation within the building had to rely on stairs, causing great inconvenience to those involved. The present invention aims to alleviate such inconvenience for those involved.

[Means for solving problems]

The temporary elevator according to the present invention fixes a car for the new elevator to the upper hoistway when removing parts of an existing elevator or adding new parts to remodel it into a new elevator. A temporary hoisting machine is installed on the floor, and a temporary barb car is also installed in the hoistway, and the main rope that suspends the temporary car is wrapped around the hoisting machine via the barb car. It was designed to serve the floors that were previously serviced by the existing elevators.

[Effect]

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

〔Example〕

1 to 4 show an embodiment of the present invention,
In the figure, the same reference numerals as in FIGS. 6 and 7 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 floor 1 on the 9th floor.
19 is a temporary hoisting machine, 30S is a hoisting motor,
41s is the first barb car, 42s is the second barb car,
5s is a temporary machine stand that is partially installed on the floor 119 of the 9th floor and extends to the opposite wall of the hoistway 1. The hoisting machine 3s is placed on the floor 119 of the 9th floor, and the hoistway 1
A first barb wheel 41s and a second barb wheel 42s are attached to the inner portion. 6s is machine stand 5
Temporary control panel installed in s, 7s is hoisting machine 3s
and a temporary main rope that is wrapped around the first and second barbs 41s and 42s, and has an existing cage 8 attached to one end and an existing counterweight 9 attached to the other end, and has a length of 30 to 45 It moves up and down at a speed of 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 and the counterweight 9. Next, while operating the chain block, lower car 8 to floor 117 on the 7th floor.
Stop at a slightly elevated position. In this state, the temporary main rope 7s is connected to the hoisting machine 3s and the barb wheel 41.
s, 42s, and attach a cage 8 and a counterweight 9 to both ends. When the car 8 is lowered and the floor 117 of the 7th floor matches the floor of the car 8, the car frame 8
0 top surface to the bottom surface of the machine stand 5s (hereinafter referred to as
The TC (called Top Clearance) is located on the 8th floor, 11th floor.
Corresponds to a distance of 8 to 9 floors 119, usually 280 to 350
become centimeters. This top clearance
The 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.

A support beam 22s is fixed to the wall opposite the entrance of the hoistway 1 so that its upper surface is flush with the ninth floor 119, and supports the machine platform 5s. 23s is
These are support beams fixed to the hoistway 1 wall on the entrance/exit side 50 to 100 cm below the floor 120 of the 10th floor and the wall facing this wall. 24
s 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 11 on the 1st floor
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 safety circuit that biases the hoisting motor 30s in the downward direction. 4041s is its normally open auxiliary contact, 405s is the stop relay, 4051s is its normally open contact, 4052s and 4053s are its normally closed contacts. 411s to 417s are position switches provided in the hoistway to stop the temporary car 8 on the first floor 111 to 117.

As shown in Figures 1 to 3, when a temporary elevator is installed, it is driven by the hoisting machine 3s regardless of the equipment in the machine room 2, and even if a new car 8a is not installed. The elevator car 8 is used to raise and lower 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 start button 333 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
Upon arrival, 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 111 on the first floor.
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. 6 and 7.
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
4s, for example, even if screws fall, they will not fall into the car 8.

Next, once you have finished replacing the parts with new ones,
The temporary elevator is stopped, and as shown in FIG. 4, the counterweight 9 that had been used for the temporary elevator is placed on the buffer 103 again and the main rope 7s is removed.
Remove. Furthermore, a car 8, a car frame 80, a hoist 3s, a hoisting wheel 41s, 42s, a machine stand 5s, a control panel 6s, support beams 22s, 23s, and a work floor 24.
Remove s. 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 hung. Place basket 8a on floor 12 of the 10th floor.
0, the lower surface of the counterweight 9 is positioned above the shock absorber 103 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 of installing the temporary elevator, 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 platform 5s on which the hoist 3s and the like are mounted and the support beam 22s, remove the car 8, and attach 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.

In addition, since the hoisting machine 3s is placed on the floor 119 of the 9th floor, the work space is wider compared to when it is installed in the hoistway 1, so it is possible to work with a large number of people, and the period of temporary construction can be shortened. . In particular, since the hoisting machine 3s is a heavy object, a large working space is extremely advantageous for installation work.

Furthermore, it is possible to install a temporary hoist in the machine room 2, but the machine room 2 is usually connected to the top floor 120 by a narrow staircase (not shown), and the lifting work is extremely difficult. It is difficult. According to the above embodiment, since it is installed at the landing, the work is easy.

Furthermore, according to the above embodiment, the installation work is not limited to Saturdays and Sundays, but can also be done on weekdays, which has the advantage of good workability.

By the way, in the above example as well, the 8th floor 118~
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, 3~
The fourth floor is 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.

Furthermore, 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 reducing the lifting speed.

Furthermore, in the above embodiment, the car 8 was modified, but the car 8 was not modified and other parts,
For example, it can be used when replacing an existing hoist installed in a machine room.

FIG. 5 shows another embodiment of the present invention, in which the same reference numerals as in FIG. 2 indicate the same parts.

In the figure, 5s is a temporary machine stand, which is fixed to the floor 119 on the 9th floor and has the first hoisting machine 3s on it.
A machine stand 51s, a second machine stand 52s whose upper edge is pivotally connected to the first machine stand 51s via a hinge 54s and a first barb wheel 41s is rotatably attached, and this second machine stand 52s. and a third machine stand 53s, one lower edge of which is pivotally connected via a hinge 55s and the other supported by a support beam 22s.

That is, the second machine stand 52s and the third machine stand 5
3s is rotated via hinges 54s and 55s, bent as shown by reference numerals 52s' and 53s' in FIG. 5, and installed at a predetermined position on the floor 119 of the ninth floor. When the situation arises to start remodeling work, the first thing to do is to stop the existing elevator. The second and third machine stands 52s and 53s are moved into the hoistway 1 while being rotated as shown by reference numerals 52s'' and 53s'' in FIG. 5, and the end of the third machine stand 53s is placed on the support beam 22s. Fix it in place. Since the subsequent operations are the same as those in the embodiment shown in FIGS. 1 to 4, their explanation will be omitted.

Even with the device shown in FIG. 5, the intended purpose can be achieved and the temporary machine stand can be folded up, making it easy to transport.

〔Effect of the invention〕

As described above, this invention fixes a car for a new elevator to an upper hoistway when converting an existing elevator into a new elevator by replacing all or part of the existing elevator except for the guide rails or adding new parts. However, a temporary hoisting machine is installed on the floor of the building below this hoisting machine, a barb car is installed in the hoistway at a height equivalent to this hoisting machine, and the above-mentioned hoist is installed in the lower hoistway below this barb car. A temporary car is housed that moves up and down along a guide rail, and is raised and lowered to service a part of the floor that was previously serviced by the existing elevator.

Therefore, during the remodeling period, temporary elevators can handle traffic within the building, reducing inconvenience for elevator users.

Furthermore, since the hoist is installed on the floor of the building, there is less danger in the work compared to inside the hoistway, and the workability is good.

Furthermore, when installing temporary elevators,
Since the existing elevator rails are reused, the construction period can also be shortened.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention,
FIG. 1 is a longitudinal sectional view of the hoistway, FIG. 2 is a longitudinal sectional view showing essential parts of FIG. 1, FIG. 3 is a control circuit diagram, and FIG. 4 is a longitudinal sectional view of the hoistway. FIG. 5 is a diagram corresponding to FIG. 2 showing another embodiment of the present invention. Figures 6 and 7 show the modification of a conventional elevator;
The figure is a longitudinal sectional view of the hoistway showing the existing elevator, No. 7
The figure is a diagram equivalent to Figure 6 of the newly installed elevator. In the diagram, 1 is a hoistway, 3s is a temporary hoist, and 7s is a temporary hoist.
is the main rope, 8 is the existing cage, 8a is the new cage, 4
1s and 42s are hatching cars, 100 is a car guide rail, 101 is a counterweight guide rail, and 111 to 120 are the first to tenth floors. In addition,
The same reference numerals in the figures indicate the same or corresponding 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, and a temporary hoist is installed on the floor of the building below the car via a machine stand, and the car is placed in the hoistway at a height equivalent to that of the hoist. A barb car is provided, a temporary car that goes up and down along the guide rail is stored in the lower hoistway below the barb car, and a main rope that suspends this temporary car is erected to lift the barb car. A temporary elevator, characterized in that the temporary elevator is wound around the hoisting machine through the hoisting machine, and the temporary car is raised and lowered to service a part of the floor that was being serviced by the existing elevator.