JPS5918309B2 - Installation method of mobile mechanical room elevator - Google Patents

Description

[Detailed Description of the Invention] The present invention improves the efficiency of construction work by moving the machine room of the elevator in accordance with the progress of the special construction work from the lower floors to the upper floors, and gradually extending the hoistway. This article relates to an installation method for a mobile machine room type elevator used for.

BACKGROUND ART In construction work for high-rise buildings, it takes a great deal of time to move construction workers and construction materials up and down the upper floors of the building, and this is one of the causes of impeding the efficiency of construction work.

Therefore, we moved the machine room in stages according to the construction process of the building, and used this machine room to raise and lower the elevator.
It is being used to improve the efficiency of construction work.

The installation method of the conventional mobile machine room type elevator is shown in Figure 1.
This will be explained based on FIG.

1 is a hoistway, 2 is a temporary machine room, 3 is a car, 4 is a counterweight, 5 is a hoisting rope, 6 is a hoisting device, 7 is a rope fixing device, 8 is a deflection wheel, 9 is a rope gripping device, 10 is a rope feeding device for winding the surplus of the hoisting rope 5 which has been provided with the length required for the final stroke; 11 is a cage sheave; 1
2 is a counterweight sheep, 13 is a buffer, 14 is a pedestal, 1
5 is a rope for the sling, 16 is a lifting machine, and 17 is a support beam.

To move the temporary machine room 2, connect either the ride 3 or the counterweight 4 to the temporary machine room 2 installed in the hoistway 1 with a sling cable 15, and install the other one below the hoistway. The temporary machine is placed on the pedestal 14, and the rope gripping device 9 is loosened, and the speed at which the hoisting rope 5 wound around the rope payout device 10 is paid out is synchronized with the speed at which the temporary machine room 2 is hoisted by the lifting machine 16. The chamber 2 and the passenger car 3 or counterweight 4 connected to the temporary machine room 2 are lifted up by a lifting machine 16.

In the above construction method, the hoisting rope 5 is paid out while the temporary machine room 2 is lifted and moved by the lifting machine 16, but the operator of the lifting machine 16 directly confirms the situation in which the hoisting rope 5 is paid out. Because it is difficult to do so, there is a risk of a major accident occurring.

That is, if the rope payout speed becomes faster than the lifting speed of the lifting machine 16, the hoisting rope 5 will come out too much, and the hoisting rope 5 will come off from the counterweight sheep 12 or the cage sheep 11 and be damaged by other equipment. There is a risk of damaging the caught equipment or putting an unexpected load on the lifting machine 16.Also, if the rope payout speed is slower than the lifting speed of the lifting machine 16, the hoisting rope 5 may be A counterweight 4 placed on a pedestal 14
, or 1/2 of the total weight of the seat 3 is applied to the rope payout device 10, so there is a risk of destroying the rope payout device 10.

The present invention was made in order to eliminate the above-mentioned dangers, and a load lifting device such as a chain block or an electric chain block is installed in a temporary machine room, and the work of paying out the hoisting rope from the rope feeding device is carried out. This was done before lifting the temporary machine room using a lifting machine.

An embodiment of the present invention will be described below with reference to FIGS. 3, 4, and 5. A counterweight 4 is placed on a pedestal 14 provided below the hoistway 1, and is placed in a temporary machine room 2. A load lifting device 18 such as a chain block or an electric chain block is connected to the seat 3 and the rope holding device 9 is loosened.

Next, using a load lifting device 18 such as a chain block or an electric chain block, the hoisting rope 5 is let out to a required length while lowering the rider and the rider 3.

After that, the rope invitation device 9 is tightened to grasp the hoisting rope 5, and the temporary machine room 2 is lifted up by the lifting machine 16, and the support beam 17 is lifted up by the lifting machine 16.
is removed, and the temporary machine room 29 and the 3° counterweight 4 are lifted together by the lifting machine 16 to the 22 second power of the temporary machine room, and the supporting beams 17 are attached and installed.

When the installation is completed, the lifting machine 16 is separated from the temporary machine room 2, the lifting device 18 such as a chain block or an electric chain block is separated from the passenger car 3, and the pedestal 14 is also removed.

Since the present invention is a construction method as described above, the hoisting rope 5
A person can enter the temporary machine room 2 and carry out the unwinding work while confirming safety.

Also, the temporary machine room is 22nd power or 3. Since the counterweight 4 is lifted together, the hoisting rope 5 does not slacken, so safe work can be performed.

In the above embodiment, when the hoisting rope 5 is let out, the car 3 is suspended in the temporary machine room 2, and the counterweight 4 is placed on the pedestal 1.
4, however, it is also possible to hang the counterweight 4 in the temporary machine room 2 and place the passenger seat 3 on the pedestal 14.

Further, the seat 3 or the counterweight 4 may be placed on the shock absorber 13 instead of being placed on the pedestal 14.

[Brief explanation of the drawing]

1 and 2 are diagrams showing a conventional method of installing a mobile machine room type elevator, and FIGS. 3 to 5 are diagrams showing a method of installing a mobile machine room type elevator according to the present invention. 1... Hoistway, 2... Temporary machine room, 3
...Car, 4...Counterweight, 5.
...Hoisting rope, -6 ...Hoisting device, 9
......Rope invitation device, 10...Rope feeding device, 13...Buffer, 14...
...cradle, 16...lifting machine, 17...
Support beam, 18... Loading device.

Claims (1)

[Claims] 1. Equipped with a car, a counterweight, a hoisting device, multiple hoisting ropes, a rope feeding device for winding up the excess hoisting rope, and a rope gripping device, and a temporary machine room that can be set up as the building construction progresses. In a mobile machine room type elevator, in which the temporary machine room is moved in stages to extend the elevator's ascending and descending stroke, either the passenger or the counterweight must be moved inside the hoistway when the temporary machine room is moved to the top of the hoistway. After the other is connected to the temporary machine room by a lifting device such as a chain block or an electric chain block, the rope gripping device is loosened, and either the bundle or the counterweight is connected to the temporary machine room by a lifting device such as a chain block or an electric chain block. The method is characterized in that the hoisting rope is lowered and a required length of hoisting rope is paid out from a rope payout device, and then the rope gripping device is tightened, and the temporary machine room, the passenger seat, and the counterweight are lifted together by a lifting machine. Installation method for mobile mechanical room elevator.