JPS632873B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for roping a 2:1 roping elevator.

<Prior Art> Recently, as a rope hanging method for a 2:1 roping elevator, as shown in Japanese Utility Model Publication No. 58-3705, a rope is attached to the tip of an elevator rope hanging from a rope hole in a machine room. The guide rope, which is also suspended from another rope hole in the machine room, is connected by a removable connector, and the guide rope and the guide rope are regulated in a straight line with each other, and installed in the machine room. A method was proposed in which the rope is hung by operating a winding device.

<Problem to be solved by the invention> This method is convenient when installed in a relatively low building, but in a tall building, the weight of the elevator rope causes the winding rope installed in the machine room to There are problems in that it is difficult to operate the device manually and requires an electric winding device.

In other words, when installing an electric winding device in a machine room,
Because this device is heavy, it must be carried by several people.Furthermore, when fixing the electric winding device to the floor, there are various problems such as securing an installation location and disposing of floor-embedded bolts. Ta.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator roping method that can effectively rope an elevator without causing the above-mentioned problems.

<Means for Solving the Problems> In order to achieve this object, the present invention connects one end of a rope pulled out from a wire drum installed on the top floor to a sheave installed in the elevator machine room at the top of the hoistway. After winding the rope around the deflection wheel, the rope is returned to the machine room via the hoistway through the rope hole provided in the floor of the machine room, a thimble rod is connected to the end of the rope, a spring is fitted to this thimble rod, and the rope is inserted into the machine room. A suspension plate and a lower spring seat are provided on the upper part of the spring, and an upper spring seat is provided on the upper part, and a lock nut is screwed onto the thimble rod, and the lock nut is tightened through the upper spring seat to secure the end of the rope. In this state, the rope is let out by the wire drum, suspended down to the hoistway, and wrapped around the counterweight pulley.Then, the other end of the rope is cut off from the drum and placed on the top floor of the hoistway. After wrapping around the basket pulley of the basket,
A device that is fixed to the floor of the machine room, compresses the spring in the upper spring seat portion of the rope fixing portion, and separates the upper spring seat from the lock nut to allow free rotation of the thimble rod. This device is used to hang ropes.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. FIG. 1 shows an explanatory diagram showing a rope hanging state according to the method of the present invention, in which 1a is a guide rail for a car, 1b is a guide rail for a counterweight, 2
is a drum stand that supports the wire drum 3 installed in the car 4, 5 is a counterweight, 6 is a sheave installed in the machine room of the elevator, 7 is a deflection wheel, 8
A pulley on the basket, 9 a pulley on the counterweight side attached to the hanging plate 27, 10 a rope, 11
a is a car-side rope fixing part installed in the machine room of the elevator; 11b is a counterweight-side rope fixing part; 12 is a thimble rod rotation device for allowing the thimble rod 13 to rotate freely; and 28 is a support column that supports the counterweight 5. be.

FIG. 2 is a sectional view of the car side rope fixing part 11a and the counterweight side rope fixing part 11b. A rope socket 14 is provided at the end of the rope 10, and a thimble rod 13 passing through a hanging plate 16 via a pin 15 is fixed thereto. 21 is a cotter pin that penetrates through the thimble rod 13, and 20 is a lock nut that fixes the thimble rod 13. Between the lock nut 20 and the hanging plate 16, a lower spring seat 17, a spring 18, and an upper spring seat 19 are provided. . FIG. 3 is a sectional view of the thimble rod rotating device 12 attached to the counterweight side rope fixing portion 11b. Reference numeral 23 indicates a cylinder that passes through the thimble rod 13 and is placed on top of the upper spring seat 19. Reference numeral 22 indicates a bearing placed on the cylinder 23 via a bearing seat 24. Reference numeral 25 indicates a tightening nut 26 that connects the bearing 22 and the bearing receiver. This is a push seat for pushing down the upper spring seat 19 via the seat 24 and the tube 23. In this rotating device 12, by tightening a tightening nut 26, the thimble rod 13 moves upward, separating the lock nut 20 from the seat 19, and allowing the rope 10 to rotate freely.

Next, the rope hanging method will be explained. first,
A drum stand 2 is provided in the car, a wire drum 3 is placed thereon, a rope is pulled out from the wire drum 3, and a rope socket 14 is attached to one end of the rope 10.
socketing. Thereafter, the rope is routed from inside the car to the sheave 6 and diversion wheel 7 in the elevator machine room, lowered into the hoistway through one counterweight-side rope pit, and then pulled up into the elevator machine room through the other counterweight-side rope pit. Next, it is fixed like the counterweight side rope fixing part 11b shown in FIG.

The thimble rod rotating device 12 is then set so that the attachment rope 10 can freely rotate as shown in FIG. After that, the rope 10 is pulled out from the wire drum 3, and the pulley 9 on the counterweight side is pulled out.
Then, remove one side of the counterweight side pulley hanging plate 27 and wrap the rope 10 around the counterweight side pulley 9. After that, the rope 10
After pulling it by the car pulley 8 part, temporarily fix it in the hoistway, and measure the length from the temporary fix part to the car side rope fixing part in the elevator machine room via the car top pulley 8. The rope 10 is cut from the wire drum 3 according to the actual measurement value. After performing the above steps for the number of ropes used, attach one side of the removed counterweight side pulley hanging plate 27,
Attach the rope socket 1 to the end of the rope on the cut side.
4 for the number of ropes, hang it around the car pulley 8, and attach it to the rope fixing part 1 in Figure 1.
Fix it as shown in 1a. After this, the portion temporarily fixed in the hoistway is removed to complete the work.

By hanging the rope as described above, there is no need for an electric winding device, and the twisting, kinking, and bending of the rope 10 that occurs when hanging the rope can be avoided.
It also prevents dirt etc. That is, by providing the thimble rod rotation device 12, the rope 10 can be freely rotated.
This is because the force generated in the rope 2 can escape without being stagnated within the rope 12. Also, rope 1
2 is pulled out directly from the wire drum 3, bending of the rope 12, staining of the rope 12, etc. can be prevented.

<Effects of the Invention> According to the present invention, rope twisting, kink, bending,
Not only can the quality be significantly improved since the rope does not get dirty, but also the number of man-hours can be reduced because an electric winding device is not required.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a rope hanging method according to an embodiment of the present invention, Fig. 2 is a sectional view showing the state of the rope fixing part, and Fig. 3 is a thimble rod rotation device of the rope fixing part on the counterweight side. FIG. 2...Drum stand, 3...Wire drum, 4...
...Basket, 5...Balance weight, 6...Sheave, 7
...Deflection wheel, 8...Cage top pulley, 9...Balance weight side pulley, 10...Rope, 11b...
...Balance weight side rope fixing part, 12... Thimble rod rotating device, 13... Thimble rod,
19...Upper spring catch, 20...Lock nut, 22...Bearing, 23...Cylinder, 25...
...Press seat, 26...Tightening nut, 27...Counterweight pulley hanging plate.

Claims (1)

[Claims] 1. After wrapping one end of the rope pulled out from the wire drum installed on the top floor around the sheave and deflection wheel installed in the elevator machine room at the top of the hoistway, the rope is pulled out from the rope hole provided in the floor of the machine room. The rope is returned to the machine room via the hoistway, a thimble rod is connected to the end of the rope, a spring is fitted to this thimble rod, a suspension plate and a lower spring catch are attached to the lower part of this spring, and an upper spring catch is attached to the upper part. and a lock nut is screwed onto the thimble rod, and the end of the rope is fixed by tightening the lock nut through the upper spring seat, and in this state, the rope is let out from the wire drum and suspended into the hoistway. Then, the other end of the rope is cut and separated from the drum, and after being wrapped around the car pulley of the car placed on the top floor of the hoistway, the rope is fixed in the machine room, and In the upper spring seat part of the rope fixing part,
A rope hanging for an elevator, characterized in that a device is arranged to compress the spring, separate the upper spring catch and the lock nut, and allow free rotation of the thimble rod, and the rope is hung using this device. Method.