JPH11209027A - Installation method for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve working efficiency at the time of installing an elevator, and install the elevator in a variety of buildings different in building conditions. SOLUTION: A first stage part 3a of a steel tower 3 and a first stage part 6a of a guide rail 6 are constructed, a second stage part 3b of the steel tower 3 is constructed on the upper part of the first stage part 3a of the steel tower 3 for attaching a second stage part 6b of the guide rail 6 to the second stage part 3b. After a car frame 5 is assembled to attach a car ceiling 12 to the upper part of the car frame 5, a third stage part 3c of the steel tower 3 is connected to an upper part of the second stage part 3b of the steel tower 3 to connect a third stage part 6c of the guide rail 6 to the second stage part 6b of the guide rail 6. After an operator gets on the temporary working floor 13 which is installed on the third stage part 6c to carry out the installation work, the temporary working floor 13 is removed for a time to lift up the car frame 5 by driving of a hoister 8. And then each assembly operation of a fourth stage part 3d of the steel tower 3, a fourth stage part 6d of the guide rail 6 and the like, and the lifting-operation of the car frame 5 are repeated to the top of a hoist way 1 in a similar manner for installing in-hoist way equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator installation method, and more particularly to an elevator installation suitable for performing an installation operation of a small elevator having a steel tower forming a strength member to which equipment in a hoistway is attached. About the method.

[0002]

2. Description of the Related Art Generally, small elevators are intended for small residential buildings in which the strength of the building itself cannot be expected to be strong enough to support the load of the entire elevator. In addition, a machine room for installing a hoist or the like cannot be provided in an upper portion of a hoistway in many cases due to a condition of height restriction of a building.

[0003] Conventionally, for example, Japanese Patent Laid-Open No. 8-32491
As described in Japanese Patent Publication No. 6 (1994), a small elevator having a structure having a steel tower forming a strength member that receives a vertical load such as an elevator car's own weight and having a hoist installed in a hoistway has been proposed. I have.

When such a small elevator is installed, a so-called jumping scaffold or the like is assembled from the landing on the top floor into a hoistway, and a hoist is mounted on a building using this scaffold, and a steel tower and a hoistway are installed. Each device was lifted and installed.

[0005]

According to the above-described conventional elevator installation method, a bouncing scaffold as a temporary material is transported and installed in order to assemble a bouncing scaffold or the like from the landing on the top floor into the hoistway. The work efficiency is inferior because of troublesome work. Further, in order to mount the lifting machine to the building, it is necessary to have strength enough to install the lifting machine on the building side, and there is also a problem that the application range is limited, such as changing the installation method depending on the building conditions.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances in the prior art, and has as its object to improve the work efficiency at the time of elevator installation and to install elevators in various buildings having different building conditions. It is an object of the present invention to provide an elevator installation method which can be performed.

[0007]

In order to achieve the above object, the invention according to claim 1 of the present invention comprises a steel tower which is erected on a hoistway and forms a strength member to which equipment in the hoistway is attached. The method for installing an elevator provided with a guide rail that guides a car frame that moves up and down in the pylon in the pylon, assembles and fixes a lower part of the pylon at a lower part of the hoistway, and fixes a lower part of the guide rail. After being erected and fixed to the lower part of the tower, the car frame is assembled in a state where the car floor is engaged with the lower part of the guide rail,
Using this car frame as a scaffold, the upper part of the tower is connected above the lower part of the tower, and the upper part of the guide rail is connected above the lower part of the guide rail and fixed to the upper part of the tower. After installing the temporary work floor above, a lifting machine is provided above the steel tower using the temporary work floor as a scaffold, and the equipment in the hoistway is mounted while the car frame is raised by driving the lift machine, The assembling of the upper part of the tower and the upper part of the guide rail and the raising of the car frame are repeated until reaching the top of the hoistway.

In order to achieve the above object, the invention according to claim 2 of the present invention comprises a steel tower which is erected on a hoistway and forms a strength member to which equipment in the hoistway is attached. In an elevator installation method in which a part also serves as a guide rail for guiding a car frame, a lower part of the tower is assembled and fixed at a lower part of the hoistway, and is engaged with a guide rail part included in a lower part of the tower. Assembling the car frame in the combined state, and then connecting the upper part of the tower above the lower part of the tower using the car frame as a scaffold, and installing a temporary work floor above the car frame, Using a temporary work floor as a scaffold, a hoist is provided at the top of the tower, and the hoist is driven to mount the equipment in the hoistway while raising the car frame. Then, assembling the upper part of the tower and the car frame The rise are the repeatedly performed configuration up to the top of the hoistway.

According to the first aspect of the present invention having the above structure,
In the invention according to the second aspect, a hoist is provided at each part of the steel tower while each part of the steel tower forming the strength member to which the equipment in the hoistway is attached is stacked from below to above the hoistway. Therefore, it is not necessary to attach the hoist to the building, and the elevator can be installed in various buildings having different building conditions. In addition, the car frame is moved up and down by driving the above-mentioned lifting machine, and a temporary work floor is installed above the car frame, and work is sequentially performed from below the hoistway using both the car frame and the temporary work floor as scaffolds. Since the position is ensured, it is not necessary to assemble the projecting scaffold at the upper part in the hoistway as in the prior art, that is, the work efficiency at the time of installing the elevator can be improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an elevator installation method according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a process of assembling a second stage of a tower by an elevator installation method according to an embodiment of the present invention. FIG. 2 is a diagram showing a process of assembling a third stage of a tower by an installation method of the present embodiment.
FIG. 3 is a view showing a process of assembling the fourth stage of the tower by the installation method of the present embodiment, and FIG. 4 shows a state where the temporary work floor used in the installation method of the present embodiment is raised to the third stage of the guide rail. FIG. 5 and FIG. 5 are flowcharts showing work procedures of the installation method of the present embodiment.

In the elevator shown in FIGS. 1 to 4, a steel tower 3 forming a strength member for supporting a vertical load of the elevator is erected on a pit base 2 installed at the bottom of the hoistway 1. Is fixed to the wall of the hoistway 1 via a bracket (not shown), and has a structure for supporting a lateral load during an earthquake, for example. The tower 3 is roughly divided into a lower part located below the hoistway 1 and an upper part located above the lower part of the tower 3. further,
The lower part of the above-mentioned steel tower 3 has a first stage 3a and a second stage 3b.
And beams 4a and 4b connecting the first stage 3a and the second stage 3b, respectively. The upper part of the above-mentioned steel tower 3 is provided with a third stage 3c, a fourth stage 3d and an upper steel tower (not shown). It is composed of a stage 3c, a stage 3d, and a beam 4c for connecting the upper tower (not shown).

Further, the elevator shown above has a car frame 5 which moves up and down inside the steel tower 3, and a guide rail 6 for guiding the car frame 5 is attached to the steel tower 3. The guide rail 6 is roughly divided into a lower part located at the lower part of the hoistway 1 and an upper part located above the lower part of the guide rail 6. Further, the above-described guide rail 6
The lower part of the first stage 6a is fixed to the first stage 3a of the tower 3 via the beam 4a, and the second stage 3b of the tower 3 is
The upper part of the above-mentioned guide rail 6 is connected to the third stage 3 of the steel tower 3 via the beam 4c.
c, the fourth stage 6d fixed to the fourth stage 3d of the steel tower 3 via the beam 4c, and the upper stage of the steel tower 3 via the beam (not shown). It consists of an upper rail.

When the elevator is installed by the installation method of the present embodiment, a pulley 7 is provided below the car floor 5a of the car frame 5, and a position above the car floor 5a,
For example, a hoist 8 that lifts the car frame 5 on the beams 4b and 4c via the wire rope 9, and a tip 1 of the wire rope 9
0 is provided respectively. An intermediate portion of the wire rope 9 is wound around the pulley 7, and the car frame 5 can be supported by a stopper 11 that engages with the guide rail 6. Further, a permanent car ceiling 12 is provided above the car frame 5, and a temporary work floor 13 is provided above the car ceiling 12.

In the installation method of this embodiment, FIG.
The elevator installation is performed according to the operation procedure shown in FIG. That is, first, as a procedure S1, FIG.
The pit base 2 is installed at the bottom of the hoistway 1 as shown in FIG. 1 and the first step 3a of the steel tower 3 is assembled on the pit base 2 and fixed by the beam 4a, and then the first step 6a of the guide rail 6 is set up. In step S2, a second stage 3b is connected above the first stage 3a of the steel tower 3 and a second stage 6b is mounted on the first stage 6a of the guide rail 6.
Concatenate. Next, in step S3, guide rail 6
The stopper 11 is engaged with the first stage 6a, and the car frame 5 is assembled on the stopper 11 while being engaged with the guide rail 6, and as a step S4, the worker is mounted on the car floor 5a of the car frame 5. Gets on the car ceiling 12 above the car frame 5.

Next, in step S5, the car ceiling 1
An operator gets on board 2 and, as shown in FIG.
The upper end of the step 3b is fixed by the beam 4b, and the upper end of the second step 6b of the guide rail 6 is fixed to the beam 4b.
After connecting the third step 3c above the second step 3b of the steel tower 3 and connecting the third step 6c on the second step 6b of the guide rail 6,
In step S6, the temporary work floor 1 is attached to the third step 6c of the guide rail 6 via a rail clip or bolt (not shown).
3 Install.

Next, in step S7, an operator gets on the temporary work floor 13, connects the upper end of the third stage 3c of the steel tower 3 with the beam 4c as shown in FIG. After fixing the upper end of the third stage 6c, the temporary work floor 13 is once removed. As step S8,
The lifting machine 8 is hung from the beam 4c, and the intermediate part of the wire rope 9 is wound around the pulley 7 under the car floor 5a, and the wire rope 9
Of the car frame 5 is supported by the beam 4c. In this state, the car frame 5 is raised to the height position shown in FIG. To support.

Next, in step S9, the assembling of the fourth stage 3d of the tower 3 and the fourth stage 6d of the guide rail 6 and the raising of the car frame 5 are repeated in the same manner until the top of the hoistway 1 is reached. The elevator installation work is completed by installing the equipment in the hoistway.

In the embodiment constructed as described above, each part such as the first stage 3a, the second stage 3b, the third stage 3c, the fourth stage 3d of the steel tower 3 forming the strength member to which the equipment in the hoistway is attached is formed. Since the hoistway 1 is sequentially stacked from the lower side to the upper side, and the hoisting machine 8 is provided at each part of the steel tower 3, it is not necessary to attach the hoisting machine 8 to a building. The elevator can be installed in the building.

In the present embodiment, the car frame 5 is moved up and down by driving the above-mentioned lifting machine 8, and the car frame 5 is used as a foothold to secure the working position in order from below the hoistway 1. Therefore, it is not necessary to assemble a scaffold that projects from the upper part in the hoistway 1, thereby improving the work efficiency when installing the elevator.

Further, in this embodiment, a plurality of steel towers 3 and guide rails 6 can be connected by securing a work position on a temporary work floor 13 which can be easily attached to each part of the guide rails 6. Since the lifting process of the car frame 5 by the hoist 13 can be extended, the number of times of changing the installation position of the hoist 13 can be reduced.

In this embodiment, the description has been given of the elevator in which the guide rail 6 is mounted on the tower 3 erected in the hoistway 1. However, a part of the tower forms a guide rail portion for guiding the car frame. In an elevator that is also used as an elevator, each part of the tower is sequentially stacked from the bottom up in the hoistway, and a hoist is installed at each part of this tower, and the car frame is raised while the car frame is used as a foothold. A similar effect can be obtained by sequentially installing the devices in the road from below to above.

Further, in the present embodiment, the car floor 5
The wire rope 9 of the hoist 8 is wound around the lower pulley 7 to raise and lower the car frame 5, but a pulley is mounted on the upper part of the car floor 5a, and the wire rope 9 of the hoist 8 is attached to this pulley. The car frame 5 can be raised and lowered by winding.

Further, in this embodiment, one temporary work floor 13 is mounted above the car frame 5, but a plurality of temporary work floors can be provided according to the stroke of the hoistway 1.

[0024]

As described above, according to the first and second aspects of the present invention, a lifting machine is attached to a building as in the prior art, and a so-called jumping scaffold is temporarily installed at the upper part of a hoistway. Elevator installation work can be performed without the need. Therefore, since the working efficiency at the time of installing the elevator can be improved, the working cost can be suppressed, and the elevator can be installed in various buildings having different building conditions, so that there is an effect that a method for installing the elevator with high versatility can be obtained.

[Brief description of the drawings]

FIG. 1 is a view showing a process of assembling a second stage of a steel tower by an elevator installation method according to an embodiment of the present invention.

FIG. 2 is a diagram showing a process of assembling a third stage of a steel tower by the installation method of the present embodiment.

FIG. 3 is a diagram showing a process of assembling a fourth stage of a steel tower by the installation method of the present embodiment.

FIG. 4 is a diagram showing a state in which a temporary work floor used in the installation method of the present embodiment has been raised to the third stage of the guide rail.

FIG. 5 is a flowchart showing a work procedure of the installation method of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hoistway 3 Steel tower 3a 1st stage 3b 2nd stage 3c 3rd stage 3d 4th stage 5 Car frame 5a Car floor 6 Guide rail 6a 1st stage 6b 2nd stage 6c 3rd stage 6d 4th stage 7 Pulley 8 Lifting Heavy equipment 9 Wire rope 11 Stopper 12 Car ceiling 13 Temporary work floor

Claims (3)

[Claims] Claims: 1. A steel tower, which is erected on a hoistway and forms a strength member to which equipment in the hoistway is attached,
In an elevator installation method provided with a guide rail that guides a car frame that moves up and down in a tower, the lower part of the tower is assembled and fixed at the lower part of the hoistway,
After the lower part of the guide rail is erected and fixed to the lower part of the tower, the car frame is assembled in a state where the car floor is engaged with the lower part of the guide rail, and then the car frame is used as a scaffold, Connecting the upper part of the tower above the lower part of the tower, connecting the upper part of the guide rail above the lower part of the guide rail, and fixing the upper part of the tower,
After installing the temporary work floor above the car frame, a lifting machine is provided above the steel tower using the temporary work floor as a scaffold, and the equipment in the hoistway is raised while driving the car frame by driving the lift machine. A method of installing an elevator, comprising: repeatedly mounting and then assembling the upper part of the tower and the upper part of the guide rail and raising the car frame up to the top of the hoistway. 2. An elevator according to claim 1, further comprising a steel tower which is erected on the hoistway and forms a strength member to which equipment in the hoistway is attached, and a part of the steel tower also serves as a guide rail for guiding the car frame. In the installation method, the lower part of the tower is assembled and fixed at the lower part of the hoistway,
Assembling the car frame in a state where the car frame is engaged with the guide rail portion included in the lower part of the tower, and then connecting the upper part of the tower above the lower part of the tower using the car frame as a scaffold, After installing the temporary work floor above, a lifting machine is provided at the top of the steel tower using the temporary work floor as a scaffold, and the hoistway equipment is mounted while the car frame is raised by driving the lift machine, Next, the assembling method of the elevator, wherein the assembling of the upper part of the tower and the raising of the car frame are repeatedly performed until reaching the top of the hoistway. 3. The temporary work floor is installed above the car ceiling using the car ceiling as a foothold after assembling the car ceiling on the upper part of the car frame. Elevator installation method.