JPS6145876A - Device for installing elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an elevator installation device, and particularly to an elevator installation device that performs installation work without using temporary scaffolding or a mobile workbench. be.

[Background of the invention]

Conventionally, when installing an elevator, scaffolding boards such as steel pipes or wood that are assembled in a cross-shaped structure are passed along the entire length of the hoistway according to the work position, and the guide rails are installed on top of these scaffolding boards. Installation or installation of landing parts, installation of equipment in the hoistway, piping and wiring, and then installation of elevators.
After assembling the car and counterweight, and hanging the wire ropes, the scaffolding material that had been set up in the shape of a grid was dismantled.

A fixed scaffold construction method was used to remove it.

This fixed scaffolding method can be said to be a simple and efficient method when installing low-rise elevators, but as the target building becomes higher-rise, it becomes necessary to assemble scaffolding materials throughout the entire process of the hoistway. Therefore, a large amount of scaffolding materials are required, and a great deal of labor is required to assemble, dismantle, and remove them, and the labor required for moving workers up and down increases, which significantly impedes work efficiency. . It also had many drawbacks, including the great danger of working on scaffolding set up in the shape of a cross.

Therefore, as an installation method for high-rise elevators in particular, after erecting and centering the required number of counterweight guide rails at the bottom of the hoistway, a temporary work platform is built into the counterweight guide rails, and a winch installed at the top of the hoistway. As a result, the temporary workbench engaged with the counterweight guide rail is moved, and the counterweight guide rails are sequentially erected from below. After that, we installed the car guide rails, the second landing parts, the equipment in the hoistway, and the piping/wiring work.After that, we removed the winch and temporary workbench and installed the first car and counterweight. ,
Alternatively, using a guide rope strung above and below the hoistway as a guide, move the temporary work platform using a winch installed at the top of the hoistway, install the elevator, and then winch.

In some cases, the guide rope and temporary workbench are removed and a rider and counterweight are installed. however,
This method required a lot of labor to temporarily install and remove the heavy winch from the top of the hoistway, and was also very dangerous. Furthermore, since the movable workbench needs to be sized to match the horizontal cross-sectional shape of the hoistway, it is necessary to prepare many types of movable workbenches, and a large amount of expense is required to store and manufacture them. Furthermore, after installing landing parts, installing equipment in the hoistway, and installing piping and wiring, temporary work platforms and guide ropes must be removed, which requires a lot of labor, and costs a lot of money and time. There was a drawback that it cost.

To solve this drawback, Japanese Patent Application Laid-Open No. 58-4778
In Publication No. 3, a winch fixed at the bottom of the hoistway connects and lifts the entire length of the guide rail, the upper end is fixed to the top of the hoistway in a suspended state, and the lower end is fixed to the bottom of the hoistway. The car frame for permanent installation is assembled into the guide rail temporarily erected in this way, and the wire rope of the winch used above is connected to the car frame for permanent installation via a pulley device installed above the hoistway to drive the winch. It has been proposed to move the car frame for the main installation, center the guide rail, install landing parts, install equipment in the hoistway, and perform piping and wiring.

However, since the winch used to move the car frame for permanent installation is used to lift the guide rail for the entire journey, a large-capacity winch is required, and a lot of work is required to temporarily install and remove the winch from the hoistway. It requires effort. Furthermore, in order to fix the guide rail for the entire stroke to the machine room floor at the top of the hoistway, it was necessary to increase the strength of the machine room floor.
OBJECT OF THE INVENTION An object of the present invention is to provide an elevator installation device that eliminates the above-mentioned drawbacks and allows safe and efficient elevator installation.

[Summary of the invention]

In the present invention, a lower guide rail for a car is erected at the bottom of a hoistway, a car frame for permanent installation is incorporated into this lower guide rail,
The car frame for main installation is raised and lowered using an electric winch installed at the bottom of the hoistway, and the required number of guide rails are fixed and erected from the bottom of the hoistway in order from the bottom of the car frame, and then the counterweight guide rails are installed. Installation 2 By installing landing parts, installing equipment in the hoistway, and installing piping and wiring,
The feature is that the elevator can be installed without installing a large-capacity winch.

[Embodiments of the invention]

The present invention will be explained below using examples.

In the figure, 10 is a hoistway, 10a is the top of this, 4
a is a lower car guide rail fixed and erected at the lower part of the hoistway 10, 2 is an electric winch identified at the lower part of the hoistway 10, 6 is a wire rope for this, and 1 is attached to the lower car guide rail 4a. A permanent car frame that is movably engaged and becomes a work platform, 11 is a permanent machine stand installed on the top 10a, and 3 is a permanent hoisting machine installed on this and with a brake 3a released. A pulley device, 3b is a pulley consisting of a drive sheave of the permanent hoisting machine, 7 is an operation button temporarily installed on the car frame 1 for permanent installation and connected to the winch 2, and 9 is a pulley provided on the car frame 1 for permanent installation. An emergency stop device which performs a braking operation by the operation of the speed governor 13, and a work floor 8 which is temporarily installed above the car frame 1 for permanent installation and which serves as a work bench.

That is, the wire rope 6 is wound around a pulley 3b and connected to the car frame 1 for permanent installation, and the car guide rail 4a is fixed and erected at the lower part of the hoistway 10! The car frame 1 for main installation is guided. 6) Then, when a worker gets on the work platform 8 and operates the operation button 7, the winch 2 is braked and the work floor 8 is raised and lowered.

After doing this, the suspension rope 12 of another winch (not shown) is suspended from the top 10a, and the necessary number of frost-lifting car guide rails 4b are suspended from the suspension rope 12 via the suspension beam 5, and the lower After connecting to the car guide rail 4a set upright and fixing it to the hoistway 10,
Raise the work floor 8. In this way, the car guide rail 4 is erected from below over the entire distance.

Afterwards, although not shown, installation of the counterweight guide rail, installation of landing parts, and installation of equipment in the hoistway.
Perform piping and wiring. Then, the car frame 1 for permanent installation is fixed to the upper part of the hoistway 10, and at the lower part of the hoistway 10, a counterweight is incorporated and five wire ropes are hung around the pulley 3b.
Connect the above-mentioned main car frame and counterweight. In this way, the guide rail for permanent installation and the 2-car hoist can be used as installation equipment, so temporary equipment for installation only needs to be prepared.

Temporary construction and removal can be omitted, and the elevator can be easily installed. In addition, the trouble of installing and removing the heavy winch 2 at the top and top 10a of the hoistway 10 can be saved, and the necessary number of guide rails can be installed upright, so even if the hoistway travel is long, the large capacity can be maintained. It is possible to eliminate the trouble of installing and removing the winch, and also to eliminate the need to fix the top of the guide rail, thereby improving the efficiency of the installation work.

〔Effect of the invention〕

As explained above, according to the present invention, a work floor consisting of a car frame for permanent installation is movably engaged with a guide rail erected at the lower part of the hoistway, and a wire rope of a winch fixed to the lower part of the hoistway is movably engaged. By raising and lowering the work floor via a pulley device installed at the top of the hoistway,
Preparation, temporary installation, and removal of installation equipment can be omitted,
In addition, the winch can be easily installed and removed temporarily.

The blade can be used efficiently and costs can be reduced.

[Brief explanation of drawings]

The figure shows a longitudinal sectional perspective view of an elevator installation method according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Car frame for permanent installation, 2... Winch, 3... Pulley device, 4... Car guide rail, 5... Hanging beam, 6... Wire rope, 7... Operation button, 8...
・Working floor, 10... Hoistway, 12... Hanging rope,
13... Speed governor.

Claims (1)

[Claims] 1. A lower guide rail for a car installed vertically at the lower part of the hoistway, a main car frame movably engaged with the guide rail, a pulley device pivotally attached to the upper part of the hoistway, and one end of which is connected to the car frame. A wire rope connected to the car frame for permanent installation and wrapped around the pulley device, and the other end of the wire rope fixed to the lower part of the hoistway are connected, and the car frame for main installation is used as a work platform for lifting and lowering. An elevator installation device characterized by being equipped with a winch.