JPH09202563A - Installation method for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform alignment and fixing of a lowermost guide rail without needing a scaffolding for a work and perform safe and rapid assembly of an elevator car. SOLUTION: After the lower end part of a lowermost guide rail 2 is aligned and fixed, a car vertical frame 4a is engaged with the lowermost guide rail 2, and a floor support member 6 to support a car floor 4b is attached to the intermediate part of the lowermost guide rail 2. A worker rides on the car floor 4b and a car upper frame 4c is attached to the upper end part of the car vertical frame 4a and the upper end part of the lowermost guide rail 2 is aligned and fixed. Thereafter, after the lower end part of the car vertical frame 4a is lifted to the position of the car floor 4b, the work enters a space below the car floor 4b. By intercoupling the lower end part of the car vertical frame 4a and the car floor 4b, assembly of the car 4 and alignment and fixing of the lowermost guide rail 2 are carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sets up a pair of guide rails in a hoistway, and assembles a car including a car floor, a car vertical frame and a car upper frame, and then the car is constructed as described above. The present invention relates to an elevator installation method in which equipment in a hoistway is installed while moving up and down along a guide rail.

[0002]

2. Description of the Related Art In recent years, when installing an elevator, a work floor is installed above the main construction car without installing a large work scaffold in the hoistway, and the hoistway is raised and lowered while the car is being lifted. The so-called scaffold-less construction method for mounting internal equipment tends to be used.

As an example of such a scaffold-less construction method, first, the lowermost guide rail is erected from the scaffolding provided at the lowermost part of the hoistway, centered and fixed, and then the rider engaging with the lowermost guide rail. There has been one in which a car is assembled and devices in the hoistway are mounted while raising and lowering the car.
With this conventional scaffold-less construction method, it is not necessary to install a large-scale work scaffold in the hoistway, but it is necessary to provide a relatively small scaffold at the bottom of the hoistway for centering and fixing the bottom guide rail. However, it takes a considerable amount of time and labor to carry, assemble, and disassemble scaffolding materials that make up this scaffolding, and there has been a demand for improved efficiency in elevator installation work.

Therefore, as one means for solving the above-mentioned problem, as described in, for example, Japanese Patent Laid-Open No. 61-69679, the lowermost guide without forming a working scaffold at the lowermost part of the hoistway. An elevator installation method has been proposed in which rails are erected and centered and fixed. In this installation method, first, the lower end of the lowermost guide rail is centered and fixed from the bottom of the hoistway, and the car floor is engaged with this lower end.
An operator rides on a scaffolding such as a stepladder installed on this car floor to assemble the car by connecting the car top frame to the upper end of the car vertical frame, and then place the work floor on this car. The upper end of the lowermost guide rail is centered and fixed on the work floor.

[0005]

By the way, in the above-mentioned conventional elevator installation method, when the car upper frame of the car and the upper end of the car vertical frame are connected, the height from the car floor to the car upper frame is increased. Since the size is quite large, it was necessary to place a scaffolding such as a stepladder on the floor of the car and perform the connecting work on the scaffolding such as the stepladder. Therefore, since the scaffolding such as the stepladder is simply placed on the floor of the car and is not firmly fixed, there is a concern that the scaffolding such as the stepladder may be unstable and may fall during the connecting work. There was a problem that was inferior.

Further, when the car floor is engaged with the lower end of the lowermost guide rail, the car floor is arranged at a height position lower than the lowest floor landing, and the car floor and the bottom of the hoistway are connected to each other. There was a problem that the interval was quite small. Therefore, the operator cannot perform the work of assembling the car floor from the bottom of the hoistway, and the work of connecting the lower end of the car vertical frame to the car floor is inserted into the narrow gap between the car floor and the bottom of the hoistway. It was difficult to do the elevator installation work.

The present invention has been made in view of the actual situation in the prior art as described above, and an object thereof is to center and fix the lowermost guide rail without requiring a working scaffold and to assemble a car. An object of the present invention is to provide an elevator installation method that can be performed safely and efficiently.

[0008]

In order to achieve the above object, the present invention provides a car including a car floor, a car vertical frame and a car upper frame while standing a pair of guide rails upright in the hoistway. After assembling, in the elevator installation method in which the equipment in the hoistway is installed while raising and lowering the car along the guide rail, in the guide rail, the lower end of the lowermost guide rail is centered. After fixing, the car vertical frame is engaged with the lowermost guide rail to support the car floor at a predetermined height position in the middle part of the lowermost guide rail, and the operator gets on the car floor. The upper car frame is attached to the upper end of the car vertical frame, the upper end of the lowermost guide rail is centered and fixed, and then the lower end of the vertical car frame is pulled up to the car floor position. After that, an operator enters below the car floor and connects the lower ends of the car vertical frames to the car floor to assemble the car and center and fix the lowermost guide rail. I am doing it.

In the present invention constructed as described above, the car floor is supported at a predetermined height position in the middle of the lowermost guide rail, so that the gap between the car floor and the bottom of the hoistway can be maintained at a desired size. Therefore, an operator can easily enter the gap and easily perform the work of connecting the car floors. In addition, since a worker can board the car floor supported at the above-mentioned predetermined height position and connect the car top frame to the upper end of the car vertical frame, a scaffold such as a stepladder is installed on the car floor. Eliminates the need for safe, quick car assembly. Further, when the lower end of the lowermost guide rail is centered and fixed at the bottom of the hoistway, no work scaffold is required, and when the upper end of the lowermost guide rail is centered and fixed, the above-mentioned predetermined Since the operator gets on the car floor supported at the height position, it is not necessary to install a scaffolding such as a stepladder on the car floor.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an elevator installation method according to the present invention will be described below with reference to the drawings. FIG. 1 is a flowchart showing a part of an elevator installation method according to an embodiment of the present invention, FIG. 2 is a flowchart showing a remaining part of the installation method of the present embodiment, and FIG. 3 is used in the installation method of the present embodiment. 5 is a perspective view of the floor support member, FIG. 4 is a side view showing a state in which the car floor is supported by the floor support member of FIG. 3, and FIG.
FIG. 6 is a side view showing a state in which the car vertical frame and the car upper frame are lifted up, and FIG. 6 is a side view showing a state in which a work floor is placed on the car upper frame. It should be noted that in FIGS. 1 and 2, these are continuous at each A portion in FIGS. 1 and 2.

In the figure, 1 is a hoistway, 2 is a pair of lowermost guide rails which are erected on the lower part of the hoistway 1 and face each other, 3
a and 3b are rail brackets for fixing the lowermost guide rail 2 to the wall of the hoistway 1, 4 is a car including a pair of car vertical frames 4a, car floor 4b and car upper frame 4c, and 5 is a car near the hoistway 1. The machine room 5a provided is a hydraulic power unit installed in the machine room 5. Further, 6 are a pair of floor support members attached to the intermediate portions of the pair of lowermost guide rails 2, respectively, to support the car floor 4b, 6a and 6b are receiving surfaces for receiving the ends of the car floor 4b, and 7 will be described later. Another floor support member attached to the upper end of the jack base 8 for supporting the end of the car floor 4b, 7a a receiving surface for receiving the end of the car floor 4b, 8 a jack base for mounting a hydraulic jack (not shown), 9a and 9b are brackets for fixing the jack stand 8 to the wall of the hoistway 1, 10 is a pit at the bottom of the hoistway 1, 11 is a scaffolding scaffold installed on the top of the hoistway 1, and 12 is installed on the top of the hoistway 1. A lifting device, 13 is a bracket for fixing the lifting device 12 to the wall of the hoistway 1, 14 is an upper template installed on the upper part of the hoistway 1 for hanging a piano wire (not shown), and 15 is a car upper frame 4c. Work floor mounted , 16 are front pillars attached to the landing side end of the car upper frame 4c, 17 are tie rods that are attached to the car upper frame 4c and reinforce the car 4, and 18 is on the car upper frame 4c via the work floor base 15. Is a work floor placed on the floor, 19 is a clamp provided on the other floor support member 7 for holding the car floor 4b, and 20 is a wire for temporarily fixing the car vertical frame 4a to the lowermost guide rail 2.

In the installation method of this embodiment, the guide rail is centered and fixed and the car 4 is assembled in accordance with the work procedure shown in FIGS. As shown in FIG. 4, as step S1 of step 1, a scaffolding scaffolding 11 is installed on the upper part of the hoistway 1, and as step S2, an operator gets on the projecting scaffolding 11 and the lifting device 12 is attached to the bracket 13. To the wall of the hoistway 1 via the upper template 14 as step S3.
Is installed and a piano wire (not shown) is hung from the upper template 14, and the lower end of the piano wire is fixed to another template (not shown) below the hoistway 1, so that the above-mentioned piano wire is operated over the entire path of the hoistway 1. Draw a line. Then, as a step S4, a pair of lowermost guide rails 2 are erected at the lower part of the hoistway 1, and the lower end portion of the lowermost guide rail 2 is centered with the piano wire as a reference and the hoistway via the bracket 3b. While fixing to 1 wall,
The jack base 8 is also erected on the lower part of the hoistway 1, and the jack base 8 is fixed to the wall of the hoistway 1 via the brackets 9a and 9b.

Next, as step S5, as shown in FIG. 3, the car vertical frames 4a are erected on the pits 10 along the lowermost guide rails 2, and the car vertical frames 4a are placed at the lowermost part. The guide rails 2 are engaged and temporarily fixed with a wire 20 or the like, and as a step S6, the pair of floor support members 6 are attached to the intermediate portions of the lowermost guide rails 2, respectively, and the other floor support members 7 are set as described above. Floor support member 6
The floor supporting members 6 and 7 are arranged so as to be located at the same height as the above and are attached to the upper end of the jack stand 8 and, as a step S7, these floor supporting members 6 and 7 are mounted.
The car floor 4b is temporarily placed on the car floor 4b, and the car floor 4b is received by the receiving surfaces 6a, 6b, 7a and the car floor 4 is fixed by the clamp 19.
Hold b. Then, in step S8, the operator gets on the car floor 4b, attaches the car upper frame 4c to the upper end of the car vertical frame 4a as shown in FIG. 4, and in step S9 of FIG. As a reference, the upper end of the lowermost guide rail 2 is centered and fixed to the wall of the hoistway 1 via the bracket 3a.

Next, in step S10, as shown in FIG. 5, the upper ends of the front pillars 16 and the tie rods 17 and the upper guide rollers (not shown) are attached to the car upper frame 4c, and the work floor base 15 is mounted on the car in step S11. After mounting on the frame 4c and removing the wire 20 in step S12 to release the temporarily fixed state of the car vertical frame 4a, the car vertical frame 4a, the car upper frame 4c and the work floor base 15 are hung by the lifting device 12. increase.

Thereafter, as shown in FIG. 6, the car vertical frame 4a
When the lower end of the car has risen to the height position of the car floor 4b, the lifting device 12 is stopped, and the lower end of the car vertical frame 4a is connected to the car floor 4b in step S13, and the front pillar 16 and The car 4 is assembled by connecting the lower ends of the tie rods 17 to the car floor 4b. Next, in step S14, the work floor 18 is assembled on the work floor base 15, and in step S15, an operator gets on the work floor 18, and a second-stage guide rail (not shown) is erected on the lowermost guide rail 2. While raising the car 4 and the work floor 18 along the guide rails, centering and fixing of the guide rails and installation of equipment in the hoistway (not shown) are performed.

In the embodiment constructed as described above, the car floor 4b and the pit 10 are supported by supporting the car floor 4b by the floor support member 6 or the like mounted at a predetermined height position in the middle portion of the lowermost guide rail 2. In order to maintain the desired space between the car and the floor, the operator can enter the space without any trouble and the car floor 4b
The car floor 4b can be easily connected, and the car floor 4b can be connected to the upper end of the car vertical frame 4a by the operator getting on the car floor 4b installed at the predetermined height position. It is not necessary to install a scaffold such as a stepladder on the top, and the car 4 can be assembled safely and quickly. In addition, when the upper end portion of the lowermost guide rail 2 is centered and fixed, the operator rides on the car floor 4b supported at the predetermined height position, so that it is not necessary to install a scaffold for work. I'm done.

Further, since the spacing between the receiving portions 6a and 6b of the floor supporting member 6 is set to be larger than the width dimension of the car vertical frame 4a, the car vertical frame 4a interferes with the floor supporting member 6 in step S12. It can be lifted smoothly without any trouble.

[0018]

Since the present invention is constructed as described above, the lowermost guide rail can be centered and fixed without requiring a working scaffold, and the car can be assembled safely and quickly. Therefore, there is an effect that the work efficiency at the time of installing the elevator can be improved and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a flowchart showing a part of an elevator installation method according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the rest of the installation method of the embodiment.

FIG. 3 is a perspective view of a floor support member used in the installation method of the present embodiment.

FIG. 4 is a side view showing a state in which a car floor is supported by the floor support member shown in FIG.

FIG. 5 is a side view showing a state in which a car vertical frame and a car upper frame are suspended.

FIG. 6 is a side view showing a state in which a work floor is placed on a car upper frame.

[Explanation of symbols]

 1 Hoistway 2 Bottom guide rail 4 Car 4a Car vertical frame 4b Car floor 4c Car upper frame 6 Floor support member 7 Other floor support members 8 Jack stand 10 Pit 12 Lifting device 15 Working floor base 18 Working floor

Claims (3)

[Claims] 1. A pair of guide rails are erected in the hoistway, and after assembling a car including a car floor, a car vertical frame and a car upper frame, the car is moved up and down along the guide rails. While installing the equipment in the hoistway while installing the elevator, in the guide rail, after the lower end of the lowermost guide rail is centered and fixed, the car vertical frame is attached to the lowermost guide rail. In combination, the car floor is supported at a predetermined height position in the middle of the lowermost guide rail, and an operator gets on the car floor to attach the car upper frame to the upper end of the car vertical frame, After centering and fixing the upper end of the lowermost guide rail and then pulling up the lower end of the car vertical frame to the position of the car floor, an operator enters below the car floor to By connecting the lower end and the car floor your vertical frame, elevators method installation, characterized by performing the centering fixing of the passenger cage assembly with the lowermost guide rail. 2. A pair of floor supporting members for supporting a car floor are respectively attached to an intermediate portion of the lowermost guide rail, and a lifting device for lifting a car vertical frame is provided on an upper part of a hoistway. The elevator installation method according to claim 1. 3. The method of installing an elevator according to claim 2, wherein another floor supporting member for auxiliary supporting the car floor is attached to an upper end portion of a jack base for supporting the hydraulic jack.