JPS61114983A - Elevator installation method - 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 Industrial Application] The present invention relates to an elevator installation method for fixing both ends of a main rope to a car frame and a weight frame.

[Conventional technology]

The conventional elevator installation method involves fixing one end of the main rope to either the car frame or the weight frame, then connecting the winch rope to the weight frame or the car weight frame, and then attaching the other end of the main rope while towing the winch rope. is pulled down and fixed to the other side of the weight frame or car frame. This elevator installation method will be explained using FIGS. 5 and 6.

In the same figure, 1 is a hoistway formed by a side wall 2;
A is an opening provided in the side wall 2, and a landing door device is attached here. Reference numeral 3 denotes a machine room provided above the hoistway 1. The floor 4 of this machine room 3 also serves as the ceiling of the hoistway 1, and a machine stand 5 is fixedly installed on this floor 4. The machine stand 5 includes a hoisting machine stand 6 and a car frame 11.
A hoist 7 is mounted on the hoist 7 to raise and lower the hoist, and the hoist 7 is provided with a sheave 8 that is rotated by the hoist 7. Furthermore, a sheave 8 and a diversion wheel 9 whose axes are different from each other are attached to the hoisting machine base 6, and this diversion wheel 9 deflects the main rope 10 toward the counterweight. On the other hand, a weight frame 12 is disposed together with the car frame 11 on the lowest floor of the hoistway 1, and within this weight frame 12 is an adjustment weight 1 that functions as a counterweight.
3 is loaded.

Further, the main rope 10 for directly connecting the car frame 11 and the weight frame 12 has rope sockets 101.10b at both ends,
The rope socket 10b at one end is fixed to the weight frame 12, and the rope socket 10& at the other end is suspended over the car frame 11 via the deflection wheel 9 and sheave 8. 15 is a winch attached to the lowest floor 14, 16 is a winch rope, 17 is a first return wheel attached to the side wall 2, 1
8 is the second return wheel attached to the lifting beam fixed to the ceiling of the machine room 3 with the anchor port 19, and 21 is the 6th return wheel.
As shown in the figure, a hanging metal fitting ρ attached to the weight frame 12 is a chain for adjusting the length t between the hanging metal fitting 21 and the third return wheel n.

Next, the weight frame 12 to which one end of the main rope 10 is fixed is raised, and the rope socket 101 at the other end of the main rope is connected to the car frame 1.
A method for lowering it to the car frame 11 and fixing it to the car frame 11 will be explained. In this case, the weight frame 1 on the ceiling of the machine room 3
2, the first return wheel 17 is fixed to the side wall 2 at approximately the height of the lowest floor of the hoistway l, and the first return wheel 17 is attached to the lowest floor 14. winch 15
is used. Next, the length t of one chain ρ is determined by taking into consideration the top clearance, the assembly position of the car frame 11, the length extending to the machine room 3, etc., and is fixed to the hanging fixture 21 attached to the weight frame 12. Then, the winch rope 16 is roped through the third cylindrical rod and wound around the winch 15. Next, lift the weight frame 12 to which one end of the main rope 10 is fixed.
Tow the winch rope 16 and attach the weight frame 1 to the car frame 11.
The main ropes 10 are fixed to the car frame 11. Thereafter, in the machine room 3, the chain a is cut off from the hook part of the third return wheel n, thereby completing the installation of the main rope 10.

[Problem that the invention seeks to solve]

However, the conventional elevator installation method has the following problems.

First of all, when determining the length of the cheno, it is necessary to take into account the assembly position of the car and the length that exits to the machine room, and since there is no foothold in the hoistway, measuring the top clearance becomes dangerous.

In addition, the main rope and the third
Since it is necessary to pass a return wheel or the like to cut off the cheno, the work efficiency is extremely poor. Furthermore, when the car frame to which the main ropes are connected is operated as a work floor, etc., there is a danger that the hanging fittings attached to the weight frame may come off the chain hooks and become trapped between the hoistway wall and the weight frame.

This invention was made in order to solve the above-mentioned conventional problems, and provides an elevator installation method that eliminates the need for lifting chains, eliminates the danger of installation work, and improves work efficiency. The purpose is to provide.

[Means for solving problems]

The method for installing an elevator according to the present invention is to attach a loan return wheel directly to the weight hanging bracket, rope a winch rope to this, and wind the winch rope in synchronization with the operation of the hoisting machine. After the other end of the lowered main rope is attached to the car frame or weight frame, the winch rope is returned to the machine room and cut off from the car.

[Effect]

In this invention, when connecting the main rope with the car frame or weight frame, the weight frame is lifted only on the winch rope, making it unnecessary to measure the car frame assembly position and the top clearance of the hoistway ceiling. The above purpose can be easily achieved.

〔Example〕

An embodiment of the elevator installation method according to the present invention will be described below with reference to FIGS. 1 and 2. In FIG. 1, the same symbols as in FIG. 5 indicate the same (corresponding) parts, and 23a is the third
Round retaining ring installed on the return wheel, main rope 10
and the third return wheel.

That is, the hanging fitting 21 is fixed to the weight frame 12, the third return single-turn is attached to this, and the third return wheel n is fixed to the main rope 10 using the round retaining ring 23a and the fixing fitting barbs. .

In this state, the winch rope 16 is towed by the winch 15, and at the same time the hoist 17 is operated in a well-timed manner to lower the other end of the main rope 10 and fix the rope socket 10a to the car frame 11. At this time, as shown in Figure 1, the third
The return unit is located within the hoistway 1. Then, the attachment of the main rope to the car frame is completed by cutting off the end of the winch rope that is fixed to the round retaining ring portion 18 of the second return wheel 18 from the machine room.

In such an elevator installation method.

Unlike conventional methods, it is not necessary to measure the length of each part, and work in narrow spaces can be eliminated. In addition, since the third return wheel is fixed to the main rope by the fixing bracket 24, the return wheel will not be caught between the weight frame and the hoistway wall when the weight frame is raised or lowered. , Figure 4 shows that the elevator roping is 2:lnoo.
- This shows another embodiment of the invention in the case of a hinge, in which a hanging wheel 3 is mounted on the weight frame. Therefore, if the weight frame 12 is lifted by using this suspension wheel instead of the third return wheel and the rope 16, the same effect as in the above embodiment can be obtained.

〔Effect of the invention〕

As explained above, the elevator installation method according to the present invention involves attaching the third return wheel directly to the hanging bracket, fixing the third return wheel to the main rope, lifting the weight frame or car frame, and then lifting the weight frame or car frame. The winch rope is connected to the car frame via a main rope, and the winch rope is cut off in the machine room. Therefore, not only does it become unnecessary to measure the length of the chino, but it also has various excellent effects, such as: 1. Work efficiency is greatly improved by eliminating work in narrow spaces.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing one embodiment of the elevator installation method according to the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1 showing the weight frame, and Figs. 3 and 4 show other embodiments. FIG. 5 is a schematic view showing an example of a conventional elevator installation method, and FIG. 6 is an enlarged view of the weight frame. 1... Hoistway, 3... Machine room, 10... Main rope,
DESCRIPTION OF SYMBOLS 11... Car frame, 12... Weight frame, 18... Second return wheel, 21... Hanging bracket, z3... Third return wheel, 23a... Round retaining ring, 24...Fixing metal fittings,
5... Hanging wheel. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals. Agent Masuo Oiwa (2 others) s/! ! ! ! Figure 2 Figure 3 Figure 4 Figure 5 Figure S

Claims (2)

[Claims] (1) After fixing one end of the main rope with both ends suspended via a sheave to either the weight frame or the car frame, the weight frame or car frame is raised and the other end of the main rope is lowered. In an elevator installation method in which the other side of the main rope is fixed, a return wheel is attached directly to the hanging bracket of the weight frame, a winch rope is roped to this, the winch rope is wound up, and the main rope is lowered by this. An elevator installation method characterized by fixing the other end of the winch rope to a car frame or weight frame, and then cutting the winch rope from its return wheel in a machine room. (2) The elevator installation method according to claim 1, characterized in that during 2:1 roping, a hanging wheel provided on the weight frame is used in place of a return wheel.