JPS5912595B2 - Elevator installation construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to construction methods for installing elevators, and its purpose is to provide a construction method that is safe, reduces worker fatigue, and significantly increases work efficiency.

Conventional elevator installation is generally carried out by passing a work plate 2 on top of steel pipes or wood 1 assembled in a cross-shaped structure in the hoistway, as shown in Figure 1, depending on the work position, and then placing the work plate 2 on top of this. A fixed scaffolding method was used in which parts were installed or the hoistway piping and wiring were installed, and then the scaffolding set up in a cross-shaped structure was removed and the car frame and weights were installed.

This fixed scaffolding method can be said to be a simple and efficient construction method when installing elevators in low-rise buildings, but as the buildings in question become higher-rise, workers can move up and down (usually using stairs). In some cases, climbing directly up and down fixed scaffolding is required.

) will increase labor and will significantly impede work efficiency.

In addition, since the work was done on scaffolding set up in the shape of parallel cross-sections, there were drawbacks such as the danger of dogs.

An object of the present invention is to provide a construction method that improves work efficiency and is highly safe.

The present invention involves a process of centering the machine room and installing the main hoist, assembling the main car frame and weight in the hoistway, and hanging the car frame, the hoist, and the weight with a rope. a step of moving the permanent car frame up and down using the hoisting machine to attach landing parts and arranging and arranging it in the hoistway; a step of assembling the ceiling and side panels to the main car frame and around the car; This is a construction method that includes the process of wiring.

The method of the present invention will be explained below based on FIGS. 2 to 4 which embody the method.

FIG. 2 shows an example of the construction method according to the present invention, with the main work sequence separately described. In FIG. 2, the double frame work is carried out on a movable car frame.

The construction method of the present invention will be described in more detail below.

First, mark the reference lines such as the center of the centering cage and the position of the guide rail in the machine room where the hoist will be installed, then use a special winch to lift up the machine room related items and install the hoist. Install.

Next, the piano wire that serves as the installation standard for the heel and weight guide rails is stretched from the machine room to the bottom of the hoistway.

Next, using this piano wire as a reference, the guide rail mounting bracket is fixed to the hoistway wall using a moving scaffold.

After that, while connecting the guide rail, use a winch to lift it up and set it at the destination, and center it using the piano wire as a reference.
Fix the top end, then move to important points (the installation pitch is rough within the range where the car frame does not move back and forth or left and right during work, which is good for work efficiency).

) to the hoistway wall via the rail mounting bracket.

Fig. 3 is a diagram showing the state in which the rails have been fixed. In Fig. 3, 3 is the guide rail on the weight side, 4 is the guide rail on the car side, 5 is the bracket fixed to the lifting wall, and 6 is the bracket 5. A clip is tightened to fix the rail, 7 is a movable scaffold, and 8 is a hoisting machine stand.

After completing the fixing of the rails above, install the machine room related parts (hoisting machine, control panel, etc.) and connect the low-speed operation circuit.

Next, the car frame (the car ceiling and side panels will get in the way of the work, so attach them at the final stage.

) and weights are brought in, assembled, and roped.

Next, install tape is wired from the machine room to the car frame, completing the scaffolding work.

Figure 4 shows the completed scaffolding. In Figure 4, 9 is a control panel, 10 is a hoisting machine, 11 is a car frame, 12 is a weight, 1
3 indicates a rope, and 14 indicates an operating cable.

After the scaffolding is completed, a worker climbs onto the car frame, moves the car frame up and down at low speed, fixes the guide rails at the correct pitch, attaches the landing parts, and connects the pipes and wiring inside the elevator.

After completing this work, attach the car ceiling and side panels to the car frame, and add weights (when assembling the weights previously, the car ceiling,
The load was less than the weight of the side plates.

) to complete the elevator installation.

The above is an explanation of one embodiment of the construction method of the present invention. In this example, the adjustment and fixing of the guide rail is performed as the 10th work as shown in Fig. 2, but it may be performed at the same time as the 6th work. .

Also, the seventh and eighth tasks may be reversed.

According to the present invention, the car frame, which was the final step in the conventional art, is installed first, and the work is carried out by riding on this car frame, which not only makes it possible to work extremely safely and without fatigue, but also to secure the car frame securely. There is no need to install or remove scaffolding at all, making work extremely efficient.

In addition, since the car frame is used as a scaffold, there is no need for conventional fixed scaffolding such as steel pipes, making installation inexpensive.

Furthermore, in conventional construction methods, the installation position of the cross beam is fixed, and if the crossbeam is installed in a misaligned position, work must be done in an unstable posture, but with this construction method, the car frame can be moved up and down, making it extremely easy to position it in the specified position. It is possible to perform stable operation at all times.

etc. achieve many remarkable effects.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of a lift furnace showing the overall fixed scaffold construction method, which is a typical conventional installation method. Fig. 2 is a diagram showing the work order of an embodiment of the construction method of the present invention. FIG. 4 is a diagram showing a state in which the rail installation, which is an intermediate step of the invention, has been completed, and FIG. 4 is a diagram showing a state in which the car frame installation has been completed. 3.4...Guide rail, 5...Bracket, 6...Fixing clip, 7...
Moving scaffold, 8...Hoisting machine stand, 9...Control panel, 10...Hoisting machine, 11...Car frame, 12... ...Weight, 13...Rope,
14... Operation cable.

Claims (1)

[Claims] 1. The process of centering the machine room and installing the main hoist, and the process of assembling the main car frame and weight in the hoistway and hanging the car frame, the hoist, and the weight with ropes. , a process of moving the permanent car frame up and down by the hoisting machine, installing landing parts, piping and wiring in the hoistway, and assembling the ceiling and side panels to the permanent car frame and wiring around the car. Elevator installation, which consists of processes, is the construction method.