JPH02295877A - Installation construction method for elevator - Google Patents

Abstract

PURPOSE:To perform installation construction with no restriction in a set up period of a power supply by suspending a cage frame with a rope, linked on a pulley, releasing a brake of a hoist with a switch on the frame in an inching manner and performing work in each floor while lowering the frame by its own weight. CONSTITUTION:First a temporary work floor 3 is built in the uppermost story of a lift path, and by mounting a pulley to vertically provide a guide rail 4, it is centered and fixed. Next by building a cage frame, a finally-provided winding barrel-type hoist 8 and a control panel 9 are parallelly installed in a machine room 7 in the vicinity of a lower part of the lift path 6, and a finally-provided rope 11 is fed from the hoist 8 to suspend the finally-provided cage frame 10, further an operating switch 14, provided in the cage 10, is connected to a brake of the hoist 8 by an operating cable, thereafter the temporary work floor 3 is dismantled. Next the cage frame 10 is manually wound up to the uppermost story of the lift path. The brake of the hoist 8 is electrically released in an inching manner by a 100V power supply, and by lowering the cage frame 10 to a predetermined position, various works of mounting a gate part and apparatuses in the lift path, arranging and connecting wires in the lift path are performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an installation method for an elevator, and particularly to an installation method suitable for an elevator driven by a winding hoist.

[Conventional technology]

A conventional method for installing an elevator driven by a winding hoist is as described in Japanese Patent Laid-Open No. 60-52483. In other words, scaffolding was temporarily installed in the elevator hoistway, a permanent pulley was attached to the upper part of the hoistway, and the permanent winding-truck type hoist installed in the machine room near the bottom of the hoistway was accessed via this permanent pulley. A rope was placed, the main equipment of the elevator was connected to this rope, and the main equipment was hoisted to a predetermined position by operating a drum hoist.

[Problem to be solved by the invention]

Incidentally, most of the demand for elevators using drum-type hoisting machines is generally for small-sized buildings. When constructing such a small building, a 100V power supply can be used except for the elevator installation work, so Koyomi's construction company uses 2ooV only for elevators until the building is nearly completed.
In many cases, the v power supply is not connected. For this reason, elevator contractors had to run a separate temporary power source for elevator installation work, or had to match the work schedule of the builder, which caused problems in terms of economy and efficiency.

Therefore, in many cases, the conventional elevator installation method is
It is necessary to arrange for a separate power source using an engine or to assemble temporary scaffolding at a certain pitch along the hoistway. There was a problem in that temporary construction and removal required complicated labor.

An object of the present invention is to provide an elevator installation method that allows installation work to be performed without being restricted by the timing of installing a power source.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention, after assembling a main-installation winding-truck type hoist near the lower part of the hoistway, uses a main rope wound around the main-installation winding-truck type hoist to move the car. The frame is suspended, and this main unit transmits commands from the operation switch installed on the cage between the frame and the main unit hoisting machine,
Providing an operating cable for operating the brake of the winding drum type hoist, and then opening the brake of the main installation winding drum type hoist by operating the operation switch,
Various operations are performed while sequentially moving the main car frame downward.

[Effect]

Since the present invention is an installation method as described above, the car frame can be lowered by its own weight by gradually releasing the brake of the winding drum hoist for permanent installation using a 100V power supply. Even at sites where a 200V power source is not available, various tasks can be carried out using the car frame, which is lowered by its own weight.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 is a work process diagram, in which the first step is to assemble a temporary work floor on the top floor of the hoistway. That is, as shown in FIG. 2, the temporary work floor 3 is first assembled using the materials waiting on the top floor of the hoistway, and then the pulleys are attached as a second step shown in FIG.

A pulley bracket 1 is attached using the temporary work floor 3 shown in FIG. 2 as a foothold, and a permanent pulley 2 is attached to this pulley bracket 1. Thereafter, as the third step in FIG. 1, the guide rails are erected.

In other words, the guide rail 4 carried into the hoistway 6 from near the bottom of the hoistway 6 shown in FIG. Pull upward by an amount corresponding to the length of the minute. Next, the next guide rail is connected to the lower part of this lifted guide rail 4, and the work of lifting this up to a height equivalent to one guide rail is repeated, and a pair of guide rails are installed on both sides of each floor entrance/exit 13. Set up the rail.

The next fourth step is centering and fixing the guide rail, in which the guide rail bracket 5 is used to center and fix the guide rail to each floor surface of each floor entrance 13. Next 5th
The process of step 2 is to assemble the car frame, and a single car frame 10 is assembled at the bottom of the hoistway. In parallel with this step, in the sixth step, a winding drum hoist 8 for permanent installation and a control panel 9 were installed in the machine room 7 formed near the bottom of the hoistway 6. The main rope is sent out from the upper machine 8, the main car frame 10 is suspended via the main pulley 2 as a seventh step, and the operation switch 1 provided on the main car frame 10 is suspended as an eighth step.
4 and the brake of the winding drum hoist 8 for permanent installation, the temporary work floor 3 is dismantled as the ninth step, and the main installation frame 10 is moved to the winding drum hoist 8 for permanent installation. Attach a manual winding handle to the upper machine 8 and use manual winding 1 to wind it to the top floor of the hoistway. The state at this time is as shown in FIG.

Next, the car frame movement as the tenth step is performed by operating the operation switch 14 provided on the car frame and electrically operating the brake of the main installation winding drum type hoist 8 using the 100V power supply. By gradually opening the car frame 10, the car frame 10 is lowered to a predetermined position, and in the eleventh step, various works such as installation of entrance/exit parts and equipment in the hoistway (not shown), wiring and connection work in the hoistway are carried out. Let's do it. All the work in the hoistway is completed by repeating this brake inching operation and various works until the main car frame 10 reaches the lowest floor.

Finally, when the elevator power was turned on, the 12th
As part of the process, trial runs and adjustments will be made.

In addition, the assembly of the main car frame 1o, which is the fifth step, is as follows:
It is also possible to move the temporary work floor 3 assembled on the top floor of the hoistway to a lower floor, and use the moved temporary work floor 3 as a scaffold to assemble the permanent car frame 10 at the top floor or an intermediate floor.

〔Effect of the invention〕

According to the present invention, the main car frame is sent out from the main car hoist and suspended by the main rope hooked on the main pulley, and the brake of the main car hoist is operated on the main car frame. By operating the switch and opening it one inch at a time, the car frame is lowered by its own weight while various tasks on each floor are performed, so there is no need to install a separate power supply even when the 200V power supply is not connected. , elevator installation work can be done with a 100V power supply.

[Brief explanation of drawings]

Figures 1 to 3 show an elevator installation method according to an embodiment of the present invention, with Figure 1 being a work process diagram, and Figures 2 and 3 showing the steps in the above installation method. FIG. 2... Permanent pulley, 3... Temporary work floor, 4... Guide rail, 6... Hoistway, 8... Winding drum hoist for permanent installation, 10... Permanent installation Car frame, 11...main rope,
14... Operation switch, 15... Operation cable. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) In the elevator installation method, which is carried out by moving the permanent car frame along the guide rail installed in the hoistway, this book is used after the main installation winding machine is assembled in the hoistway. The above-mentioned main car frame is suspended by a main rope wound around the main installation winding drum hoist, and the car frame is suspended between the main car frame and the main installation winding drum hoist. An operating cable is provided for transmitting commands from an operating switch provided on the machine to operate the brake of the winding drum hoist, and then operating the operating switch to operate the brake of the winding drum hoist for main installation. A method for installing an elevator, characterized in that various works are carried out while sequentially moving the main car frame downward by gradually opening the car frame.