JPS6251867B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to cords disposed in elevator hoistways such as governor ropes, tail cords, balance chains,
This invention relates to locking prevention devices such as steel tapes for floor selection machines.

Generally, the inside of the elevator hoistway is shown in Figures 1 and 2.
As shown in the figure, on the walls 1A and 1B of the hoistway 1,
Guide rails 2A, 2B and 3A, 3B are fixed with anchor bolts 6, 7 via brackets 4A, 4B, 5A, 5B, respectively, and a car 8 and a counterweight are mounted along these guide rails 1A, 1B, 2A, 2B. 9 can be raised and lowered. These cages 8 and counterweights 9 are connected to ropes 10
This rope 10 is suspended via a hoist 11 and a deflection wheel 12 installed in a machine room 1M at the top of the hoistway.

An arm 13 protrudes from the car 8, and a governor rope 14 is connected to both ends of the arm to form a loop of the governor rope 14. This loop is wound around the speed governor 15 in the machine room 1M, and suspends the tension wheel 16 at the bottom of the hoistway.

In addition, another arm 17 protrudes from the car 8 and is connected to a steel tape 18 for a floor selection machine (not shown). 19 is a tail cord that transmits power and signals into the car 8 from the fixed side, and 20 is a balance chain that connects the car 8 and the counterweight 9 below.

In the elevator configured as above,
Currently, each of the strings is arranged using a narrow space in the hoistway 1, and when the elevator is operated in such a state, the various strings are arranged in the car 8.
For example, the governor rope 14 and the steel tape 18 that are separated from the rope 14B and the tape 18B swing more strongly than the rope 14A and the tape 18A that are connected to the car 8.
Therefore, the rope 14B, which is separated from the car 8,
For example, the tape 18B was placed at a location away from the accessory parts installed in the hoistway.

However, as buildings have become increasingly taller and more flexible in recent years, the strings have become longer and more susceptible to shaking due to strong winds or the shaking of buildings during earthquakes. Accidents of locking with hoistway accessories due to shaking of the string cannot be prevented, and even the rope 14A and tape 18A connected to the car 8, which had little shaking, are shaken greatly.
There is a risk of it getting stuck with the hoistway accessory parts.

In addition, in order to avoid the above-mentioned hoistway accessories from being locked with ropes or tapes, there is a system that surrounds these assemblies with guide members to restrict the swinging of the strings (Japanese Utility Model Publication No. 55-92666). . In this case, although it is possible to avoid the cord from being locked with the hoistway accessory, the problem is that the cord may slide on the guide member and be damaged due to movement and shaking of the cord, which is not practical.

The present invention has addressed the above-mentioned problems, and its purpose is to provide an elevator hoistway interior that can prevent the cord from becoming stuck to hoistway accessories and ensure safe operation using simple components. An object of the present invention is to provide a device for preventing locking of an installation string.

In order to achieve the above object, the present invention isolates the attached parts from the string by bending the end of the cord fixed to the back of the guide rail and bringing it close to the hoistway wall surface on which the guide rail is fixed. A feature is that a plurality of isolation bodies are attached along the entire length of the guide rail.

An embodiment according to the present invention will be described below with reference to FIGS. 3 and 5. The difference from the conventional one in each figure is that an L-shaped separator 21 is fixed to the back surface of the guide rail 2 with a clip 21' and a bolt 22. The separator 21 is arranged so that one side of the L-shape faces the hoistway wall surface 1A with a gap G therebetween, and close to an accessory part 25 such as a mounting bracket for fixing the hoistway equipment 26. However, since the mounting interval L of the separators 21 is determined according to the expected swinging of the governor rope 14 (14A, 14B), the separators 21 may be placed at positions other than those close to the attached parts 25.

With this configuration, even if the rope 14A sways, the rope 14A may go around the back side of the attached part 25, or even if it does not go around, the attached part 25
The isolator 21 can prevent dangerous operations such as getting caught in the engine, and as a result, accidents that reduce reliability such as malfunctioning of the speed governor and emergency stop device can be prevented.

The L-shaped separator 21 shown in FIGS. 4 and 6 connects two members: a fixing member 21A fixed to the back surface of the guide rail 2 and a facing member 21B facing the hoistway wall surface 1A. It is configured as follows. The fixing member 21A has an L-shape, and has one side in contact with the guide rail 2 and the other side facing the wall surface of the hoistway, and the other side is provided with a long hole 23 along its extension direction. On the other hand, opposing member 21B
It also has an L-shape, and one side is in contact with the other side of the fixing member 21A, and the other side is in contact with the hoistway wall surface 1A. These two members 21A, 21B are connected at their contact portions with bolts 24 or the like.

With the above configuration, even if the distance between the guide rail 2 and the hoistway wall 1A is large, the bolts 24
If the opposing member 21B is pulled out until it comes into contact with the hoistway wall surface 1A, it is possible to prevent the rope 14A or 14B from going around the back side of the guide rail 2.

In addition, since the opposing member 21B is formed of a long member that spans between the adjacent fixed members 21A and 21A, it is possible to isolate the ropes 14A and 14B from approaching the back surface of the guide rail 2 over a wide range. Can be done.

7 and 8 are designed to prevent each string from getting caught on the protruding ends of the anchor bolts 6, 7 that fix the brackets 4, 5 that support the guide rails 2, 3. In this case, the back surface of the guide rail 2 and the hoistway wall surface 1A are opposite to each other, and the same separator 21 as in the previous embodiment is attached to the back surface of the guide rail 2 at a position close to the bracket 4. Fig. 8 shows a case where the back surface of the guide rail 3 and the hoistway wall surface 1B are almost at right angles, and the guide rail 3 is fixed on one side of the L-shaped bracket 5, and the other end is attached with an anchor bolt on the hoistway wall surface 1B. 7, and an L-shaped separator 27 is attached to the guide rail 3 so as to cover the protruding end of the anchor bolt 7.
It is attached to the back of the This separator 27 is also composed of two members: a fixed member 27A and a facing member 27B.

As explained above, the present invention provides a string that is fixed to the back surface of the guide rail at a plurality of locations in the longitudinal direction of the guide rail, and the end of the string is bent and brought close to the hoistway wall surface on which the gadrail is fixed. Since we have installed an isolator that separates the locking between the body and the attached parts in the hoistway, even if the string swings, there will be no catch between the two, greatly improving reliability and making it easier to use in existing elevators. It is an extremely excellent product that can be easily constructed.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view showing the elevator hoistway;
Figure 2 is a cross-sectional enlarged plan view along the line of Figure 1;
3 and 4 are respectively plan views showing one embodiment of the cord locking prevention device according to the present invention, FIGS. 5 and 6 are front views of FIGS. 3 and 4, respectively, and FIG. FIG. 8 and FIG. 8 are plan views showing still another embodiment of the cord locking prevention device according to the present invention. 1... Hoistway, 2, 3... Guide rail, 8, 9...
Elevating object (car, counterweight), 10,1
4, 18, 19, 20... string, 21, 27... isolator.

Claims (1)

[Scope of Claims] 1. An elevating body that ascends and descends along a guide rail fixed to a wall surface of a hoistway via a bracket, and a string body disposed in the ascending and descending direction close to the guide rail, Further, in the elevator in which accessory parts protruding around the guide rail are arranged, the bracket is fixed to the back surface of the guide rail at multiple locations in the longitudinal direction of the guide rail, and an end on the string body side is bent. A locking prevention device for a cord installed in an elevator hoistway, characterized in that an isolator is attached to face a fixed wall of the hoistway. 2. In claim 1, the separator is an elevator hoistway interior structure formed by connecting a fixing member fixed to the guide rail and a facing member facing the hoistway wall surface. A locking prevention device for the installation string. 3. A device for preventing locking of a cord disposed in an elevator hoistway according to claim 2, wherein the opposing member is disposed across the fixed member adjacent to the fixing member in the ascending and descending direction.