JP3340322B2 - Elevator main cable entanglement prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator for exchanging main ropes provided in parallel in a hoistway to prevent the main ropes from interfering with each other or being tangled due to shaking. The present invention relates to a main rope entanglement prevention device.

[0002]

2. Description of the Related Art Usually, a sheave of an elevator hoist includes six sheaves.
-10 main ropes are wound around. Also, both ends of each main rope are respectively clamped to steel retainers, and the tips of the retainers are respectively connected to the upper beams of the car and the upper portions of the counterweights.

Conventionally, when such a main rope is replaced, first, a car and a counterweight are fixed to appropriate positions on a guide rail, and a winding device for the old main rope and a supply device for the new main rope are each appropriately mounted. Install on a comfortable floor. Then, the terminal on the car side and the counterweight side of the old main rope are cut off, respectively, and the terminal of the new main rope is connected to one terminal. Then, while rotating the hoist, a new main rope is supplied from the supply device, and the old main rope is withdrawn by the winding device. After this,
Connect both ends of the new main rope to the car and counterweight.

[0004]

According to the conventional method for exchanging main ropes as described above, a plurality of main ropes can be exchanged efficiently at the same time, but a plurality of main ropes arranged at a narrow interval can be exchanged efficiently. Since the main ropes move in the hoistway at the same time, there is a possibility that the main ropes may interfere with each other or become entangled with each other due to the swing of the main ropes. In particular, when using a main strand of Lang twist (the strand twist direction and the wire rope twist direction are the same), the strand exposed on the outer periphery is not parallel to the length direction of the main rope. Because it is arranged diagonally, simply separating the main cable with a metal jig,
There was a possibility that the wire at the outer peripheral portion might be broken by being rubbed by the jig.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and can prevent the main ropes from interfering with each other when the main ropes are exchanged, and can prevent rung twisting. It is an object of the present invention to provide an elevator main rope entanglement prevention device capable of preventing breakage of a strand of a main rope.

[0006]

According to a first aspect of the present invention, there is provided an elevator main rope entanglement preventing device, comprising: a pair of fixing members fixed to a pair of guide rails provided in a hoistway; An entanglement prevention plate attached between members, a plurality of partition members provided on the entanglement prevention plate, each partitioning a plurality of main ropes provided in parallel in the hoistway one by one, and a tip of an adjacent partition member An escape-prevention member that is provided to be able to open and close between the parts and that prevents the main rope from escaping from between adjacent partition members, and is provided on the outer peripheral portion of each partition member to prevent the main rope from directly contacting the partition member And a protection cover that extends the tip of some of the partition members more than the other partition members.
Provide a threaded part with a length, and have a hole
Escape prevention as an escape prevention member where the tip of the cutting member abuts
Part of the stop cover is screwed with a nut.
Is attached to the partition member .

According to a second aspect of the present invention, there is provided an elevator main rope entanglement preventing apparatus in which a tangling prevention plate is attached to a fixing member so as to adjust the position of a pair of guide rails in the direction of the gap.

[0008]

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 1 is a front view showing a main rope entanglement preventing device according to Embodiment 1 of the present invention, and FIG. 2 is a plan view of FIG. In the drawing, 1 is a pair of weight guide rails, 2 is a pair of rail brackets as a fixing member fixed to the weight guide rail 1 by a rail clip 2A,
Reference numeral 3 denotes an entanglement preventing plate mounted between the pair of rail brackets 2 using four sets of bolts and nuts 4. As shown in FIGS. 3 and 4, the rail bracket 2 and the entanglement preventing plate 3 Slots 2a and 3a for attaching bolts and nuts 4 are provided, whereby the entanglement preventing plate 3 is attached to the rail bracket 2 so that the position of the pair of guide rails 1 can be adjusted in the interval direction. Thus, the main rope entanglement preventing device of this example can be attached to the guide rails 1 having different intervals.

Numerals 5 denote a plurality of partition bars which are erected on the entanglement preventing plate 3 at equal intervals in parallel with each other and partition the main ropes 6 one by one. Two of these partition bars 5 are provided. The tip of one of the partition bars 5 is provided with a screw portion 5a extending beyond the tip of the other partition bar 5. Reference numeral 7 denotes a plate-like escape prevention cover as an escape prevention member fixed to the partition bar 5 by screwing a nut 8 to the screw portion 5a. As shown, a hole 7a through which the screw portion 5a passes is provided. Further, the tip end of the partition bar 5 not provided with the screw portion 5 a is in contact with the back surface of the escape prevention cover 7.

FIG. 7 is a perspective view showing the partition bar 5 in an enlarged manner. A protective cover 9 for preventing the main rope 6 from directly contacting the partition bar 5 is covered on the outer peripheral portion of the partition bar 5. I have. This protective cover 9 is made of, for example, a vinyl tube,
A cut 9a for attachment is provided along the longitudinal direction.

Next, FIG. 8 is a cross-sectional view showing a state of the main rope replacement work. In the figure, 11 is a hoistway, 12 is a machine room provided in the upper part of the hoistway 1, 13 is a hoisting machine installed in the machine room 12, 14 is a deflecting wheel provided in the machine room 12, 15 Is a control panel similarly installed in the machine room 12. 16 is a pair of car guide rails installed in the hoistway 11, 17 is a car that moves up and down the hoistway 11 along the car guide rail 16, 18 is a hoistway 11 along the weight guide rail 1. Counterweight to go up and down inside
Reference numerals 9 and 20 denote shock absorbers provided for the car 17 and the counterweight 18 provided in the pit 11a.

Reference numeral 21 denotes a main rope supplier installed on the floor one floor higher than the middle of the ascent / descent process, and a new main rope 6 is wound around each of these main rope suppliers 21. 22
Is a main rope winder that is installed on the middle floor of the ascent and descent process and winds up the old main rope 6, 23 is a machine room side portable operation switch connected to the control panel 15, and 24 is an operation operation panel of the car 17 Car-side portable operation switch connected to the
Reference numerals 25 and 26 denote lifting devices for lifting the car 17 and the counterweight 18 with respect to the guide rails 1 and 16, respectively.

Next, a method of exchanging main ropes will be described. First, main rope feeders 21 around which new main ropes 6 are wound are prepared for the number of replacements, and these are placed on a floor suitable for work one floor above the middle of the ascent / descent process. After this, basket 1 on basket 17
7 is moved to an appropriate position, and the main rope entanglement prevention device is attached to the guide rails 1 and 16. That is, the guide rails 1,
The rail brackets 2 are fixed to 16, the entanglement preventing plate 3 is attached between the rail brackets 2, and the main ropes 6 are arranged one by one between the partition bars 5. Thereafter, the escape prevention cover 7 is attached to the tip of the partition bar 5. A required number of such main cord entanglement prevention devices are attached according to the elevating process or the like.

FIG. 9 is an explanatory view showing an example of a mounting position of the main cable entanglement prevention device. The main rope entanglement prevention device is, for example, 50
In the case of an elevator of a skyscraper of ~ 100 floors, it is installed about 1.5 m above the top floor (A and B in the figure) and about 3 m above the working floor (C and D in the figure). If it is a middle-rise building, it can be attached only to C and D in the figure.

After the main rope entanglement preventing device is attached in this manner, the car 17 and the counterweight 18 and the guide rails 1, 16
The lifting devices 25 and 26 are set between them, and the car 17 and the counterweight 18 are lifted by a predetermined amount. As a result, all the old main ropes 6 are in a state of hanging around.
At this time, it is preferable that the car 17 is stopped by operating the safety device. Then, the basket 17 of the old main rope 6
The terminal on the side is cut in the arrangement order, and is pulled out to the landing one floor above the car 17. Then, the terminal of the new main rope 6 wound around the main rope supply device 21 and the terminal of the old main rope 6 are connected in a strand twist, and the winding start and the winding end are stopped with vinyl tape.

When all the splicings have been completed, the ends of the old main rope 6 are also cut in the arrangement order on the counterweight 18 side, and connected to the main rope winder 22 from above the car 17. Then, the hoisting machine 13 is rotated in the ascending direction by the car-side portable operation switch 24, so that the new main rope 6 is sent out from the main rope supply device 21, and the old main rope 6 is wound around the main rope winder 22. Go.

When a new main rope 6 is sent out to the upper part of the counterweight 18, all of its terminals are fixed to the counterweight 18. Thereafter, by operating the car-side portable operation switch 24 and slightly operating the hoist 13 in the downward direction,
The tension of the new main rope 6 on the balancing weight 18 side is made substantially uniform. Next, the car 17 side of the new main rope 6 is cut in its entirety while securing a necessary length. Then, similarly to the counterweight 18 side, all the cut terminals are fixed to the upper beams of the car 17 in the same arrangement as before.

Thereafter, the safety device is released, and the lifting devices 25 and 26 are removed. When the tension of the main rope 6 becomes uniform, each tool or jig, that is, the main rope entanglement prevention device of the present invention is used. The test run and inspection and adjustment of the tension of the main rope 6 are performed.

In the above-described main cable exchanging operation, since the old and new main cables 6 are separated one by one by the partition bar 5, the main cables 6 are prevented from interfering with each other and becoming entangled. Further, since the partition bar 5 is firmly fixed to the guide rails 1 and 16, and the partition bar 5 is covered with the protective cover 9, the main rope 6 contacts the metal partition bar 5. Is prevented. For this reason, even when the main rope 6 of the rung twist is used, breakage of the strand is prevented.

Further, since one escape prevention cover 7 prevents all of the main ropes 6 from escape from between the partition bars 5,
The attachment and detachment of the escape prevention cover 7 is easy. Furthermore, since the mounting position of the entanglement prevention plate 3 with respect to the rail bracket 2 can be adjusted in the direction of the interval between the guide rails 1, the same main rope entanglement prevention device can cope with elevators having different intervals between the guide rails 1 and 16. And the position of the main rope 6 and the partition bar 5 can be adjusted at the same time.

Embodiment 2 FIG. In the above example, one escape prevention cover 7 is used as the escape prevention member. However, as shown in FIG. 10, for example, a rotatable door member 32 is provided at the tip of a rod-shaped or plate-shaped partition member 31. The door member 32
May be biased in the closing direction by the spring 33.
In this structure, the main cable 6 may be inserted into and removed from the space between the partition members 31 in a state where the door member 32 is opened against the spring 33, so that time and effort such as screwing can be omitted.

The protective cover 9 is not limited to a vinyl tube, but may be a vinyl sheet or the like depending on the shape of the partition member. You may.

[0024]

As described above, the elevator main rope entanglement preventing device according to the first aspect of the present invention fixes the partition member that partitions the main rope one by one to the guide rail via the fixing member and the tangling prevention plate. In addition, since the protective cover is provided on the outer periphery of the partition member, it is possible to prevent the main ropes from interfering with each other when replacing the main ropes, and to prevent the strands of the main strands with rung strands from being damaged. can do. Also, some partitions
Extend the tip of the member beyond the other
The other end of the partition member has a hole
Screw the escape prevention cover as the escape prevention member
The nut is screwed into the part to take up some partition members.
It is easy to attach the escape prevention member.
Furthermore, escape of the main rope can be prevented with a simple configuration.

[0025]

According to the second aspect of the present invention, the main rope entanglement prevention of the elevator is provided.
The stop device adjusts the position of the pair of guide rails in the space direction.
Since the entanglement prevention plate is attached to the fixing member as much as possible, the guide
Same main cable for elevators with different rail spacing
Can be handled by the
Position adjustment with the cutting member can be performed at the same time.

[Brief description of the drawings]

FIG. 1 is a front view showing a main cable entanglement prevention device according to Embodiment 1 of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front view showing the rail bracket of FIG. 1;

FIG. 4 is a front view showing the entanglement preventing plate and the partition bar of FIG. 1;

FIG. 5 is an exploded plan view showing a state where the escape prevention cover is attached to the partition bar of FIG. 1;

FIG. 6 is a front view showing the escape prevention cover of FIG. 1;

FIG. 7 is an enlarged perspective view showing a partition bar of FIG. 1;

FIG. 8 is a cross-sectional view showing a state of main rope replacement work.

FIG. 9 is an explanatory diagram showing an example of an attachment position of the main rope entanglement prevention device.

FIG. 10 is a plan view showing a part of a main rope entanglement preventing device according to a second embodiment of the present invention.

[Explanation of symbols]

1 weight guide rail, 2 rail bracket (fixing member), 3 entanglement prevention plate, 5 partition bar (partition member), 5
a screw part, 6 main cable, 7 escape prevention cover (escape prevention member), 7a hole, 8 nut, 9 protection cover, 11
Hoistway, guide rail for 16 cars.

Claims (2)

(57) [Claims] 1. A pair of fixing members respectively fixed to a pair of guide rails provided in a hoistway, an entanglement preventing plate attached between the pair of fixing members, and provided on the entanglement preventing plate, A plurality of partition members for partitioning a plurality of main ropes provided in parallel in the hoistway one by one; and a plurality of partition members which are provided to be openable and closable between the distal end portions of adjacent partition members, and are provided between the adjacent partition members. An escape prevention member for preventing escape of the main rope, and a protection cover provided on an outer peripheral portion of each of the partition members to prevent the main rope from directly contacting the partition member , and some of the partition members are , The tip of which extends beyond the other
The escape prevention member is provided with an elongated screw portion.
Has a hole through which the screw portion penetrates, and the other partition member
This is an escape prevention cover that the tip contacts.
The cover is lifted up by screwing a nut
A main rope entanglement prevention device for an elevator, the device being attached to some of the partition members . 2. The main cable entanglement prevention device for an elevator according to claim 1, wherein the entanglement prevention plate is attached to the fixed member so that the position of the pair of guide rails can be adjusted in the space direction.