JPH05186161A - Lower portion centering device for elevator installation - Google Patents

Abstract

PURPOSE:To enable highly accurate centering with high safety and economicity without interference with other working scaffold and efficiently perform centering work in a short time. CONSTITUTION:A damper mount 11, 12 on which a centering position is indicated and a centering member 13 are joined together at predetermined intervals by fittings 14 and the centering member is fixed as a lower centering frame to the floor of an elevator shaft bottom portion 1 and piano wires 16, 20, 21 are hung down into the elevator shaft toward the lower centering frame and predetermined tension is applied to the piano wires 16, 20, 21 by respective springs 23, 25, 27 and the piano wires 16, 20, 21 are connected to the hole 22 of the lower centering frame and fittings 24, 26, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator installation lower centering device, and more particularly to an elevator installation lower centering device used for installation of a car rail, a counterweight rail, an elevator landing and the like. It relates to the device.

[0002]

2. Description of the Related Art Conventional centering work during elevator installation involves attaching weights at predetermined centering positions from an upper centering frame provided at the top of the hoistway or on the floor of the machine room at the top of the hoistway. The required reference dimensions are obtained by lowering the reference piano wire and fixing the reference piano wire to the corresponding positions of the lower centering frame set at a predetermined height at the bottom of the hoistway.
That is, conventionally, the lower centering device for elevator installation as shown in FIGS. 3 and 4 is used to perform the centering.

FIG. 3 is a plan view showing a conventional elevator installation lower centering apparatus, and FIG. 4 is a side view showing a conventional elevator installation lower centering apparatus.

In the figure, 1 is a hoistway bottom portion, 2 is a hoistway wall, 3 is a fixing member mounted at a predetermined height position of the hoistway wall 2, and 4 is a fixing member 3 fixed to the hoistway wall 2. Anchor bolts, 5 are pedestals installed between the fixing members 3, 6 are piano wires hung at predetermined centering positions from an upper centering frame (not shown) at the top or top of the hoistway, 7 Is a weight suspended at the tip of the piano wire 6, 8a, 8b are positioning members arranged on the upper surface of the pedestal 5, and 9 is a piano wire for centering the car-side guide rail. Is a piano wire for centering the weight side guide rail.

Next, the installation operation of the lower centering device for elevator installation of this configuration will be described. First, the bottom of the hoistway 1
The fixing member 3 is fixed using the anchor bolts 4 embedded in the hoistway wall 2 facing each other at about 1 m above. The fixing member 3 may be fixed from the hoistway bottom portion 1 using a square member or the like. Then, the pedestal 5 is bridged between these fixing members 3 to perform horizontal adjustment and then fixed. Subsequently, a weight 7 is attached to the piano wire 6 for positioning the front surface from the upper centering frame (not shown), and the weight is lowered, and after waiting for the stationary, the positioning member 8 is brought into contact with the piano wire 6 at its front edge. ,
The pedestal 5 is fixed by nailing. That is, the piano wire 6 serves as a reference line for centering the hall side equipment. Further, similarly, a piano wire 9 for centering the car-side guide rail and a piano wire 10 for centering the weight-side guide rail are hung on the front edges of the respective positioning members 8a and 8b, and the positions thereof are marked. A lower centering frame for installing an elevator is installed at a position corresponding to a postcard and an upper centering frame (not shown). The lower centering frame installed in this way and the respective piano wires 6, 9 and 10 are connected, and the centering necessary for elevator installation is performed with reference to these piano wires 6, 9 and 10.

[0006]

In the conventional lower centering device for installing an elevator as described above, since the lower centering frame is provided about 1 m above the bottom 1 of the hoistway, the lower centering frame is different from other work scaffolds. There was interference. In addition, since installation of the lower centering device for elevator installation involves work at a construction site where the environment is poor, accurate centering is difficult, and it is not preferable in terms of worker safety. There was also a problem with the installation method. Moreover, the conventional lower centering device for installing an elevator is disposable after each construction, which is extremely uneconomical. For this reason, a lower centering device for elevator installation disclosed in Japanese Utility Model Publication No. 57-28852 has been proposed.

However, in the lower centering device for elevator installation of this publication, too, a weight is attached to the tip of each piano wire to lower it, and after waiting for it to stand, the piano wire is positioned in order to position the lower centering frame. It took a long time to stand still, resulting in a long centering work time.

Therefore, the present invention utilizes the shock absorber base arranged at the bottom of the hoistway to perform accurate centering without interfering with other work scaffolds and high safety. Moreover, it is an object of the present invention to provide an elevator installation lower centering device that is economical and that can perform centering work efficiently in a short time.

[0009]

In the lower centering device for elevator installation according to the invention of claim 1, a shock absorber stand displaying the respective centering positions and a centering member for the landing side are predetermined by connecting fittings. A lower centering frame that is fixed to the floor at the bottom of the hoistway, a piano wire hung in the hoistway toward the lower centering frame, and a predetermined tension applied to the piano wire. And a tension applying connection means connected to a predetermined position of the lower centering frame.

An elevator installation lower centering device according to a second aspect of the present invention includes a lower centering frame similar to that of the first aspect.
And a piano wire, which is provided with a tension applying connection means which is connected to the piano wire in a movable state at a predetermined position of the lower centering frame by applying a predetermined tension to the piano wire.

[0011]

In the lower centering device for elevator installation according to the first aspect of the present invention, the shock absorber base and the centering member, which indicate the respective centering positions, are joined with the fittings at predetermined intervals, and the lower center is attached. It is fixed to the floor at the bottom of the hoistway as an exit frame, a piano wire is hung in the hoistway toward the lower centering frame, and a predetermined tension is applied to this piano wire to the predetermined position of the lower centering frame. Since it is connected, it becomes a lower centering frame utilizing a shock absorber base actually arranged at the bottom of the hoistway, and the swing of the piano wire can be stopped in a short time.

In the lower centering device for elevator installation according to a second aspect of the present invention, the lower centering frame similar to that of the above-mentioned first aspect is fixed to the floor at the bottom of the hoistway and the hoistway is oriented toward the lower centering frame. Since the piano wire is hung down and is connected to the piano wire so as to be movable to a predetermined position of the lower centering frame by applying a predetermined tension to the piano wire, the piano wire is actually disposed at the bottom of the hoistway. It is a lower centering frame that uses a shock absorber base, and not only can the swing of the piano wire be stopped in a short time, but the dimensions between the piano wires can be adjusted.

[0013]

Embodiments of the present invention will be described below.

<First Embodiment> FIG. 1 is a perspective view showing a lower centering device for elevator installation according to a first embodiment of the present invention. In the figure, the same reference numerals and symbols as those of the above-mentioned embodiment indicate the same or corresponding components as those of the above-mentioned embodiment.

In the figure, 11 is a shock absorber stand for an elevator car, 12 is a shock absorber stand for a counterweight, 13 is a centering member for an elevator landing, and 14 is the shock absorber stands 11, 12 and the centering member. A connecting metal fitting for connecting 13; 15 a connecting bolt thereof; 16 a piano wire suspended from a predetermined centering position of an upper centering frame (not shown) at the top or the top of the hoistway;
˜19 are fixtures for fixing the shock absorber bases 11 and 12 and the centering member 13 to the floor surface of the hoistway bottom portion 1, 20 is a piano wire for centering the car side guide rail, and 21 is a weight side guide rail. It is a piano wire for centering. Reference numeral 22 is a hole preliminarily formed at a predetermined position of the centering member 13, 23 is a spring for applying a predetermined tension to the piano wire 16, and 24 is a mounting bracket previously attached at a predetermined position of the shock absorber base 11. 25 is a piano wire 20
Is a spring for applying a predetermined tension to, a mounting metal fitting 26 that is previously attached to a predetermined position of the shock absorber base 12, and a spring for applying a predetermined tension to the piano wire 21.

Next, the installation operation of the lower centering device for elevator installation of this construction will be described. First, the elevator car shock absorber stand 11, the counterweight shock absorber stand 12, and the landing side centering member 13 are connected to a joint fitting 14 capable of adjusting the distance between them by confirming the required dimensions. , Integrated as a lower centering frame. While moving the lower centering frame coupled in this way, the tip of the piano wire 16 hanging from the upper centering frame (not shown) is connected to a pre-drilled hole 22 via a spring 23. Then, the piano wire 16 is aligned with the black ink (not shown) on the standard floor, and the positioning is performed. Using the fixing members 17 to 19 of the centering member 13 and the shock absorber bases 11 and 12, the floor of the hoistway bottom 1 is used. Then, attach concrete nails, resin anchor bolts, etc., and fix. Also, after fixing in this way, the car-side guide rail centering piano wire 20 and the weight-side guide rail centering piano wire 21 which are separately hung from the upper centering frame (not shown) are mounted on the car side. From the respective piano wires 16, 20, 21 to the mounting brackets 24, 26 previously mounted on the shock absorber base 11 and the weight side shock absorber base 12 by electric welding or the like via springs 25, 27, respectively. Get the required relational dimensions. The centering necessary for elevator installation is performed on the basis of the respective piano wires 16, 20, 21 connected to the lower centering frame thus installed.

As described above, the lower centering device for elevator installation according to the present embodiment has the buffer stand 11 for the guide rails on the car side and the shock absorber stand for the guide rails on the counterweight side that indicate the respective centering positions. 12, the centering member 13 for the landing side, the fitting 14
At a predetermined distance from each other and fixed to the floor of the hoistway bottom 1, and from the upper centering frame (not shown) toward the lower centering frame into the hoistway. The suspended piano wires 16, 20, 21 and the piano wires 16, 20, 21
Is provided with springs 23, 25 and 27 which are tension applying connecting means for connecting a predetermined tension to the hole 22 of the lower centering frame and the fittings 24 and 26.

That is, in the lower centering device for elevator installation according to the present embodiment, the shock absorber bases 11 and 1 displaying the respective centering positions are shown.
2. The centering members 13 are joined together with the fittings 14 at predetermined intervals, and fixed to the floor of the hoistway bottom 1 as a lower centering frame, and the piano wire 16 is inserted into the hoistway toward the lower centering frame. , 2
0, 21 are hung, and a predetermined tension is applied to the piano wires 16, 20, 21 by springs 23, 25, 27 to connect them to the hole 22 of the lower centering frame and the fittings 24, 26.

Therefore, the lower centering device for elevator installation according to the present embodiment is a lower centering frame that utilizes the shock absorber bases 11 and 12 that are actually arranged on the bottom 1 of the hoistway. Does not interfere with other work scaffolds. Further, since the centering is performed by using the hole 22 of the lower centering frame and the mounting fittings 24 and 26, the centering can be performed with high accuracy, and the safety for the worker is also high. Moreover, it is economical rather than being disposable for each work as in the past.

Further, since the springs 23, 25, 27 can stop the swing of the piano wires 16, 20, 21 in a short time,
The centering work can be performed efficiently in a short time as compared with the case where the weight is used as in the past. Further, by selecting the spring constants of the springs 23, 25, 27 arbitrarily, the piano wires 16, 2
It is also possible to make 0 and 21 stand still almost instantaneously.

<Second Embodiment> FIG. 2 is an enlarged perspective view showing a main part of an elevator installation lower centering apparatus according to a second embodiment of the present invention. In the figure, the same reference numerals and symbols as those in the first embodiment denote the same or corresponding components as those of the first embodiment.

In the figure, 28 is a mounting member attached to a predetermined position of the shock absorber bases 11 and 12, and 29 is an elongated hole formed in the mounting piece of the mounting member 28. The mounting member 28 is attached to the shock absorber bases 11 and 12 by screwing or the like through the long hole 29.

In this embodiment, the fittings for joining the springs 25 and 27 for applying a predetermined tension to the piano wires 20 and 21 are detachable without fixing them by electric welding as in the first embodiment. It was done. That is, the mounting bracket 28 having this configuration is not fixed to the shock absorber bases 11 and 12 by electric welding or the like, and can be attached and detached. Moreover, by moving the mounting bracket 28 along the long hole 29, The dimensions between the piano wires 20 can be adjusted.

As described above, the lower centering device for elevator installation according to the present embodiment is provided with the buffer stand 11 for the car-side guide rail and the shock absorber stand for the counterweight-side guide rail that indicate the respective centering positions. 12, the centering member 13 for the landing side, the fitting 14
At a predetermined distance from each other and fixed to the floor of the hoistway bottom 1, and from the upper centering frame (not shown) toward the lower centering frame into the hoistway. The suspended piano wires 16, 20, 21 and the piano wires 16, 20, 21
Is provided with springs 23, 25 and 27 which are tension applying connecting means for applying a predetermined tension to the movable core fitting 28 having the hole 22 and the elongated hole 29 of the lower centering frame.

That is, in the lower centering device for elevator installation of this embodiment, the mounting fittings 24 and 26 of the first embodiment are replaced by a movable mounting fitting 28 having an elongated hole 29.

Therefore, the lower centering device for elevator installation according to the present embodiment is similar to the first embodiment described above in that the lower centering using the shock absorber bases 11 and 12 actually arranged on the bottom 1 of the hoistway. Since it becomes a frame, the lower centering frame does not interfere with other work scaffolds. Further, since the centering is performed by using the hole 22 of the lower centering frame and the mounting metal fitting 28, the centering can be performed with high accuracy and the safety for the operator is also high.
Moreover, it is economical rather than being disposable for each work as in the past.

Since the springs 23, 25, 27 can stop the swing of the piano wires 16, 20, 21 in a short time,
The centering work can be performed efficiently in a short time as compared with the case where the weight is used as in the past. Further, by selecting the spring constants of the springs 23, 25, 27 arbitrarily, the piano wires 16, 2
It is also possible to make 0 and 21 stand still almost instantaneously.

Further, by moving the mounting member 28 along the long hole 29, the dimension between the piano wires 20 can be adjusted, so that fine adjustment is possible and the positioning and centering accuracy is increased.

[0029]

As described above, the elevator installation lower centering apparatus of the invention of claim 1 is provided with the lower centering frame, the piano wire, and the tension applying connecting means, and the respective centering positions are provided. The shock absorber base and the centering member shown are connected with the fittings at predetermined intervals, and fixed to the floor of the bottom of the hoistway as a lower centering frame, and the piano wire is placed in the hoistway toward the lower centering frame. A lower centering frame using a shock absorber base that is actually arranged at the bottom of the hoistway by connecting the piano wire to the predetermined position by applying a predetermined tension to the piano wire. Since it does not interfere with other work scaffolding, it can be centered with high accuracy, and it is highly safe and economical, and the swing of the piano wire can be stopped in a short time, so centering work Can be done efficiently in a short time.

A lower centering device for elevator installation according to a second aspect of the present invention comprises a lower centering frame, a piano wire, and a tension applying connecting means, and a lower centering frame similar to that of the above-mentioned claim 1 is used for a hoistway. Fixed on the floor of the bottom part, hanging a piano wire in the hoistway toward the lower centering frame, applying a predetermined tension to this piano wire and being movable to a predetermined position of the lower centering frame. By connecting, it becomes a lower centering frame that utilizes a shock absorber base that is actually arranged at the bottom of the hoistway, so it does not interfere with other work scaffolds, and highly accurate centering is possible, and It is highly safe and economical, and because the swing of the piano wire can be stopped in a short time, centering work can be done efficiently in a short time,
Furthermore, since the size of each piano wire can be adjusted, fine adjustment is possible, and the positioning and centering accuracy is increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing an elevator installation lower centering device according to a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a main part of a lower centering device for elevator installation according to a second embodiment of the present invention.

FIG. 3 is a plan view showing a conventional lower centering device for elevator installation.

FIG. 4 is a side view showing a conventional lower centering device for elevator installation.

[Explanation of symbols]

 1 Bottom of hoistway 11,12 Shock absorber base 13 Centering member 14 Coupling metal fitting 15 Coupling bolt 16,20,21 Piano wire 17-19 Fixing tool 22 hole 23,25,27 Spring 24,26,28 Mounting metal fitting 29 Long hole

Claims (2)

[Claims] 1. A lower core formed by connecting a shock absorber stand displaying the respective centering positions and a centering member for the landing side with coupling fittings at predetermined intervals, and fixing them to the floor at the bottom of the hoistway. Outer frame, a piano wire hanging in the hoistway toward the lower centering frame, and a tension-applying connection connected to a predetermined position of the lower centering frame by applying a predetermined tension to the piano wire. A lower centering device for elevator installation, comprising: 2. A lower core obtained by connecting a shock absorber stand displaying the respective centering positions and a centering member for the landing side with connecting fittings at predetermined intervals, and fixing them to the floor at the bottom of the hoistway. An outlet frame, a piano wire hung in the hoistway toward the lower centering frame, and a predetermined tension applied to the piano wire to be connected to the lower centering frame in a movable state. Lower centering device for elevator installation, comprising: