JPH1036032A - Method for installing elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator installing method whereby operating personnel can install in-hoistway equipment efficiently without leaning into the hoistway from the landing. SOLUTION: In a procedure S2, a main winch is installed, and in a procedure S3 a guide rail is temporarily fixed and erected inside a hoistway; in a procedure S6, a main car frame is movably assembled to the bottom of the guide rail, and in a procedure S7 the main rope of the winch is connected to the car frame via pulleys mounted at the top of the hoistway; in a procedure S8, the winch is operated with the car frame secured to a working floor to raise or lower the car frame to a predetermined position, and in a procedure S10, in-hoistway equipment is installed from the bottom to the top with the car frame as scaffolding. Therefore, safety can be enhanced and construction period reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing an elevator, and more particularly, to a method in which a device in a hoistway of a relatively small-sized elevator such as a home elevator of a private house is mounted on a winding drum. The present invention relates to a method of installing an elevator in which an upper machine is driven to elevate and lower a car frame.

[0002]

2. Description of the Related Art In a conventional elevator installation method, first, a temporary work floor is assembled on the top floor of a hoistway, a pulley is mounted on the hoistway top using the work floor as a foothold, and this pulley is attached to the hoistway bottom. Attach the main rope of the installed winder type hoist and hang the two guide rails on the left and right simultaneously while sequentially connecting them, and temporarily erected them at the landing side in the hoistway. Center and fix the guide rail.
Then, a car frame is assembled so as to be engaged with the uppermost part of the guide rail, and a main rope end of the hoist is connected to the car frame via the pulley. Then, the car frame is lowered while the brake of the hoist is released slightly, and the equipment in the hoistway is installed while using the car frame as a work floor.

[0003] Examples of this type include those described in JP-A-63-123784 and JP-A-2-295877.

[0004]

In the above-mentioned conventional elevator installation method, the work of centering and fixing the guide rails must be carried out by getting out of the hall into the hoistway. It is necessary to take sufficient safety measures against falling into the road, and there is a problem that this safety measure takes time and lowers work efficiency.

Further, since the equipment in the hoistway is installed while lowering the car frame from the top of the hoistway, it is necessary to operate a safety device for stopping the fall when the car frame falls free for some reason. Prior to raising and lowering the car frame, the work of centering and fixing the guide rails must be performed by the above-described method, and therefore, the advantage of installing the equipment in the hoistway from the car frame has not been fully utilized.

That is, since the time at which the car frame can be raised and lowered is delayed, the installation time of the equipment in the hoistway using the car frame as a foothold is also delayed, which causes a problem that the entire construction period is delayed.

The present invention has been made in view of such a situation in the prior art, and has as its object to efficiently remove equipment in a hoistway without a worker leaning on the hoistway from the landing side. An object of the present invention is to provide an elevator installation method that can be installed.

[0008]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention relates to an elevator for driving a hoisting machine of a winding drum type, elevating and lowering a car frame for permanent installation, and installing equipment in a hoistway. In the installation method, the hoisting machine for permanent installation is installed and the guide rail is temporarily erected in the hoistway in a temporarily fixed state, and the permanent car frame is movably incorporated at the lowermost part of the guide rail, The main rope of the hoist is connected to the car frame via a pulley attached to the upper part of the hoistway, and the hoist is operated with the work floor fixed to the car frame to move the car frame. The device is raised and lowered to a predetermined position, and the equipment in the hoistway is sequentially installed upward from below using the work floor of the car frame as a scaffold.

According to the present invention constructed as described above, first, a hoist for permanent installation is installed, and a guide rail is erected in a hoistway in a temporarily fixed state. The main rope of the hoist is connected to the car frame via a pulley attached to the upper part of the hoistway. Thereafter, with the work floor fixed to the car frame, the hoist is operated to move the car frame up and down to a predetermined position, and the equipment in the hoistway is installed. In this manner, the installation work is sequentially performed from the lower side to the upper side using the work floor of the car frame as a scaffold. As a result, the equipment inside the hoistway is sequentially installed while raising the car frame assembled at the bottom of the guide rail in the temporarily fixed state, so that the hoistway including the centering work of the guide rail from the work floor of the car frame The equipment can be installed, and therefore, the equipment in the hoistway can be efficiently installed without the operator leaning on the hoistway from the landing side.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an elevator installation method according to the present invention will be described with reference to the drawings.

FIG. 1 is a flowchart showing an embodiment of an elevator installation method according to the present invention, and FIG. 2 is a sectional view of a hoistway showing a state in which the installation method of FIG.

FIG. 2 shows an elevator to which this embodiment is applied.
As shown in FIG. 1, a hoistway 1, a pit 2 formed by the lower part of the hoistway 1, a base 3 fixed to the pit 2 and having a rail receiving portion 3a, mounted on the base 3, and a winding drum 4
a, the lowermost guide rail 5a, the uppermost guide rail 5b, and the intermediate guide rails 5c, 5c
d, a pulley mounting frame 6 fixed to the upper portion of the hoistway 1 and having a pulley 6a incorporated at the upper end thereof, and a contact plate 7 for connecting the respective guide rails 5 to each other.
A landing 8, a bracket 9 for fixing the uppermost guide rail 5b to the hoistway wall, a car frame 10 movably incorporated in the guide rail 5, a car frame 10 at one end, and a hoist 4 at the other end. It has a main rope 11 to be connected, and a car frame work floor 12 attached to the car frame 10. In this embodiment, it is assumed that it is difficult to secure a 200V power supply at an installation site because the elevator is a relatively small-scale elevator, and it is possible to secure only a 100V power supply that can only drive a tool and a small lifting machine.

In this embodiment, as shown in FIG. 2, first, as step S1, a lifting equipment is attached to a lifting hook or beam (not shown) which is previously installed on the top of the hoistway 1. Next, as step S2, the base 3 is positioned in the pit 2 in accordance with the reference black of the building, fixed with anchor bolts (not shown), and a winding drum type hoist 4 for permanent installation at a predetermined position on the base 3. Install. Thereafter, as step S3, the lowermost guide rail 5a is erected on the rail receiving portion 3a of the base 3, and the pulley mounting frame 6 is attached to the upper end of the uppermost guide rail 5b at the pit 2, and the lifting equipment is installed. Use top guide rail 5b
And the pulley mounting frame 6 integrally with the intermediate guide rail 5c.
, And the lower end of the uppermost guide rail 5b and the upper end of the intermediate guide rail 5c are connected via the backing plate 7. In the same manner, the next intermediate guide rail 5d is also connected to the intermediate guide rail 5c, and the lower end of the intermediate guide rail 5d is connected to the upper end of the lowermost guide rail 5a erected earlier. The guide rail 5 is temporarily suspended, that is, temporarily fixed, over the entire area of the hoistway 1.

Next, in step S4, a work floor (not shown) is attached from the uppermost landing floor 8 side above the temporarily suspended guide rails 5, and the user gets on the work floor in step S5 and moves the pulley mounting frame 6 to a predetermined position. And fixed to the hoistway wall via the uppermost bracket 9. Thereafter, the procedure S
In step 6, the main rope 11 is wrapped around the pulley 6 a on the work floor above the hoistway 1 in step S 7, and the main rope 11 is wound around the pulley 6 a in step S 7. The rope 11 is connected to the car frame 10 and the winding drum 4a of the hoist, respectively, and the car frame work floor 12 is assembled above the car frame 10 in step S8.

The car frame 10 is linked with the hoisting machine 4 via the main rope 11, and as shown in step S9, the brake of the hoisting machine 4 is released and the car frame 10 is driven by manual operation by manual winding. Thereby, it is possible to go up and down in the hoistway 1,
By returning the brake of the hoisting machine 4 at the moved position, the hoisting machine 4 can be securely fixed and held. That is,
The car frame work floor 12 can be easily moved to and held at an appropriate work position on the hoistway 1, and the work position can be secured. When the car frame 10 and the car frame work floor 12 are moved, the worker is not on the car frame work floor 12 and stands by at the landing 8 side. After the movement is completed and is securely held by the brake of the hoisting machine 4, the passenger enters the car frame work floor 12 from the hall 8 side.

As described above, while the car frame 10 and the car frame work floor 12 are being moved up and down as appropriate, the installation work of the equipment in the hoistway including the permanent fixing of the guide rail 5 and the installation of the entrance is performed in step S10.

In the embodiment configured as described above, since the equipment in the hoistway is sequentially installed while the car frame 10 incorporated in the lowermost part of the guide rail 5 in the temporarily fixed state is lifted, the guide rail 5 is moved from the car frame 10. 5 can be installed including the centering operation of the hoistway 5, so that the worker does not lean on the hoistway 1 from the hall 8 side, and
Equipment in the hoistway can be installed efficiently.

In the present embodiment, the driving method of the winding drum type hoisting machine 4 is a manual operation by manual winding. However, the present invention is not limited to this. The same effect can be obtained even when driving by connecting to the motor shaft.

[0019]

As described above, according to the present invention, the equipment in the hoistway can be installed without the need for the worker to lean on the hoistway from the landing side. The safety measures against the fall are simplified as compared with the related art. From this viewpoint, the working efficiency can be improved and the safety can be improved.

Further, installation of the equipment in the hoistway including centering work of the guide rail can be performed while raising and lowering the car frame, so that the equipment in the hoistway can be efficiently installed.
The construction period can be shortened.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view of the hoistway showing a state where work is being performed by applying the installation method of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 hoistway 4 hoisting machine 5 guide rail 6a pulley 10 car frame 11 main rope 12 car floor work floor

Claims (1)

[Claims] 1. An elevator installation method for driving a hoisting machine of a winding drum type, elevating and lowering a car frame for permanent installation, and installing equipment in a hoistway, wherein the hoisting machine for permanent installation is installed. A guide rail is temporarily erected in the hoistway in a temporarily fixed state, the main car frame is movably assembled at the lowermost part of the guide rail, and a main rope of the hoist is attached to the upper part of the hoistway. Connected to the car frame via the pulley, the hoisting machine is operated in a state where the work floor is fixed to the car frame, and the car frame is raised and lowered to a predetermined position, and the work floor of the car frame is used as a scaffold. A method of installing an elevator, comprising sequentially installing the equipment in the hoistway from below to above.