JP2002332175A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out an installation method for installation using a permanent car frame and a movable platform even for an elevator having no machine room. SOLUTION: Upper portions of guide rails 3 and 3a are fixed to walls of a hoistway 21 by rail brackets 30 and 30a, and upper equipment 35 is fixed on the upper portions of the guide rails 3 and 3a, with the result that the weight of the upper equipment 35 is supported by the walls of the hoistway 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator installation method, and more particularly to a structure for supporting equipment installed in an upper part of a hoistway in an elevator installation without a machine room.

[0002]

2. Description of the Related Art Elevator installation methods include a method of assembling a scaffold along the entire length of a hoistway and installing an elevator. Instead, a method of performing installation using a permanently installed car frame or a movable work table is widely used.

[0003] Fig. 2 shows a conventional example of a method of installing an elevator using a permanently installed car frame. This conventional example will be described below. Machine room floor 1 above building
, The upper guide rail 3 is lifted, an intermediate guide rail 3 ′ is connected to the lower end of the guide rail 3 at the lowest part of the hoistway, and the winch 2 is lifted. The lower guide rail 3 '' is connected to the lower end of the 'and lifted. Then, the upper terminal of the upper guide rail 3 is suspended and fixed to the floor 1 of the machine room by the hanging metal fitting 4, and the lower terminal of the lower guide rail 3 ″ is fixed to the lowermost part of the hoistway by the rail fixing metal 5.

Then, at the bottom of the hoistway, a counterweight 6
Then, the car frame 7 is assembled, the wire rope 11 is connected to the counterweight 6, and it is pulled up to the top floor by the winch 2 and temporarily suspended. Then, the wire rope 11 is hung on the hoisting machine 8 previously installed on the machine room floor 1, and the other end of the wire rope 11 is connected to the car frame 7. Next, the cable 10 is arranged between the car frame 7 and the control panel 9 and connected to the push button of the car frame 7. Cables are also wired to the over-travel limit switches 12, 12 'arranged at the upper and lower portions of the hoistway in the same manner as described above.

Then, the car frame 7 is lifted by the hoisting machine 8, the bracket 13 for the lower guide rail 3 '' is fixed to the lower portion of the hoistway, and the guide rail 3 '' is centered and fixed to the bracket 13. Next, the car frame 7 is lowered, and gets on the floor 7 ′ at the lower part of the car frame 7 and the work table 7 ″ at the upper part,
The guide rails 3 ″, 3 ′, 3 are sequentially installed and fixed while fixing the bracket 13 in order from the bottom of the hoistway. After that, installation of the landing entrance device, installation of the equipment in the hoistway, piping and wiring, etc. are performed.

[0006]

The above prior art can be applied to an elevator having a machine room, but has a problem that it cannot be applied to an elevator without a machine room. That is, in general, an elevator without a machine room has a structure in which the weight of an upper device such as a sheave or a hoist installed above the hoistway is supported by a hoistway wall or a hoistway floor via a guide rail. Therefore, there is a problem that it is difficult to install the upper device in a state where the guide rail is not fixed as in the above-described conventional example.

[0007]

According to the present invention, an upper portion of a guide rail is fixed to a frame such as a steel frame constituting a hoistway wall or a hoistway by a rail bracket, and an upper device is fixed to the upper portion of the guide rail. Thus, the weight of the upper device can be supported by the frame.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing the vicinity of an upper portion of a hoistway of an elevator without a machine room.

A moving scaffold (not shown) is passed from the top floor landing 20 into the hoistway 21, and the hooks 22 and 23 fixed to the ceiling of the hoistway 21 are used to winch or the like in the conventional manner. The car guide rail 3 and the counterweight guide rail 3a are respectively lifted.

Next, the guide rail 3 fixed to the hoistway wall
The upper portions of the lifted guide rails 3 and 3a are respectively fixed to the uppermost rail bracket 30 for the guide rail 3a and the uppermost rail bracket 30a for the guide rail 3a. To the bottom of the Then, the bracket 31 attached slightly below the upper end of the guide rail 3 is hung on the bracket 30 by the chain 32. Because the bracket 30 is fixed to the guide rail 3 and the rail clip, there is a possibility that the bracket 30 will slip when a large force is applied. For this reason, slippage is prevented by suspending the guide rail 3 at two places of the brackets 30 and 31. Further, the same procedure is performed on the guide rail 3a side.

Further, a beam 3 is provided on the top of the guide rail 3a.
3 and the beam 34 is fixed between the beam 33 and the guide rail 3. Reference numeral 35 denotes a sheave, which is a kind of upper device, on which a wire rope 11 with a car and a counterweight suspended on both sides is wound. The upper device may be a hoist or a plurality of sheaves depending on the type of the elevator.

As described above, according to the present embodiment, even in an elevator without a machine room, an elevator installation method using a permanently installed car frame or the like can be performed.

In the above embodiment, the bracket 31 attached to the guide rail 3 is hung by the chain 32. However, when the guide rail 3 is of a type with a reinforcing material,
The reinforcement may be hung by a chain. Further, although only the uppermost bracket of the guide rail is fixed to the hoistway wall, a plurality of brackets above the guide rail may be fixed to the hoistway wall, and the chain may be omitted.

[0014]

As described above, according to the present invention,
Even in the case of an elevator without a machine room, it is possible to carry out an installation method in which the elevator is installed using a permanently installed car frame or a movable work table.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a conventional elevator installation method.

[Explanation of symbols]

 3, 3 ', 3 ", 3a Guide rail 6 Counterweight 7 Car frame 11 Wire rope 21 Hoistway 30, 30a, 31 Bracket 33, 34 Beam 35 Upper equipment

Claims (1)

[Claims] 1. A guide rail installed in a hoistway,
In an elevator equipped with an upper device fixed to an upper portion of the guide rail and a car and a counterweight that moves up and down along the guide rail, the guide rail is provided in a state where an intermediate portion of the guide rail is not fixed to a frame. An elevator apparatus having a configuration in which an upper portion of the upper device is fixed to a skeleton by a rail bracket and the upper device is fixed to an upper portion of the guide rail.