JPH0449187A - Elevator equipment centering device - Google Patents

Abstract

PURPOSE:To efficiently perform centering work easily and accurately in a short time by providing constitution such that an elevator equipment is displayed centered by placing a centering reference line in a detection action region of a contactless reference line detecting sensor of a holding tool to perform detection acting by lighting. CONSTITUTION:A centering reference line 5 is position-aligned so that it is placed in the vicinity of both end notched parts 23a of a mounting plate 23 in an upper surface of a holding tool 21 by mounting the holding tool 21 to a guide rail 1 moved and adjusted. Then, the centering reference line 5, when it is placed in each detection action region of proximity switches 24, 25, performs detection action to turn on lamps 26, 27. When all the four lamps 26, 27 are thus turned on, the centering reference line 5 results placed in a duplicated point in the detection action region of the proximity switches 24, 25, so that in this point of time, accurate centering position adjustment of the guide rail 1 is performed. Accordingly, when all the lamp 26, 27 are visually confirmed turned on, in this point of time, the guide rail 1 is fixed by final tightening to a bracket 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention provides centering during installation of elevator equipment such as elevator guide rails and doorway sills.

(Prior Art) Generally, in an elevator, it is necessary to install the left and right guide rails in the hoistway, the doorway sills, etc. in accurate positions. For this purpose, a centering reference line such as a piano wire is installed vertically in the hoistway, and a centering device is used to align the guide rail and sill with this reference line to accurately center the guide rail and sill. I have to.

There have been various kinds of centering devices, but
Both are mechanically determined using a ruler board and determined by visual inspection by the worker. The representative ones are briefly explained below.

First, FIG. 6 shows the state of centering work of the guide rail 1.
is attached through the rail bracket 4 in a temporarily tightened state. In order to center the guide rail 1, centering references II5 are vertically provided at predetermined reference positions corresponding to both sides of the upright position of the guide rail 1. This centering reference line 5 is often made of piano wire or the like, and is stretched vertically to the upper and lower templates of the hoistway 2.

As a guide rail centering device, a U-shaped block-shaped gripper 6 is applied to the guide rail 1 and attached by tightening a fixing bolt 7.

This gripping tool 6 has two reference surfaces 6a and 6b that are joined to the side surface and top surface of the guide rail 1. Further, this gripping tool 6 has a fixed ruler plate 8 on its upper surface that projects from both sides. The centering reference line 5 is provided at both ends of the ruler plate 8.
The receiver has a notched recess 8a into which the receiver is inserted, and three index lines 8b displayed on the upper surface around the recess 8a.

In this state, move and adjust the temporarily tightened guide rail 1 so that the centering reference lines 5 enter the recesses 8a on both sides of the ruler plate 8 on the gripping tool 6, and in that state, move the guide rail 1. Further fine adjustment is made so that the centering reference line 5 is positioned within the recess 8a on the extension of each index line 8b. This completes the centering of the guide rail 1, and in this centered state, the guide rail 1 is fully tightened and fixed to the rail bracket 4 to complete the installation work. Thereafter, the fixing bolt 7 is loosened and the entire centering device including the gripper 6 is removed from the guide rail 1.

FIG. 7 shows the state of centering work for the sill 11 at the entrance/exit of the elevator. A ruler plate 11 is placed at a predetermined position on the upper surface of the sill 11 set at the entrance/exit of the hoistway 2 as a centering device.
2 is installed. This ruler plate 12 has cut recesses 12a at both ends, and 3
It has a book index line 12b. In this state, as in the case of centering the guide rail described above, the centering reference line 15, such as a piano wire suspended in the hoistway 2, is inserted into the notched recesses 12a on both sides of the ruler plate 12. Move and adjust the threshold 11, and then finely adjust the threshold 11 to set the centering reference line 1.
5 is placed in the recess 12a at a position that coincides with the extension of each index line 12b. The sill 11 can now be centered, and in this centered state the sill 11 is fixed to the entrance/exit of the hoistway to complete the attachment work.

(Problems to be Solved by the Invention) By the way, in the conventional elevator equipment centering device as described above, the recesses 8a of the ruler plates 8 and 12.

The degree of alignment of the centering reference lines 5, 15 with respect to the index lines 8b, 12b within 12a determines the centering accuracy of each elevator product. For this reason, the centering of the guide rail 1 of a high-speed elevator requires particularly high precision.
Centering reference line 5 is aligned with index line 8b within recess 8a of ruler plate 8.
There was a problem in that it required a lot of time to make fine adjustments to ensure a perfect match.

Also, a small recess 8a in the ruler plate 8.12.

When adjusting the movement so that the centering reference line 5.15 falls within the centering reference line 5.15, the ruler plates 8, 12 often come into contact with the centering reference line 5, 15 by mistake. The reference line 5.15 oscillates, and the higher the building is, the more difficult it is to stop the oscillation, and the problem is that the centering process takes a lot of time and requires a lot of nerve.

Furthermore, the inside of the elevator hoistway 2 is under construction, so there is not enough lighting and the environment is dim, so the indicator lines 8b, 12
It is very difficult to visually determine the degree of agreement between the centering reference line 515 and the centering reference line 515.

That is, the recesses 3a and 12a are small, and the ruler plate 8.12
The index lines 8b and 12b are made of steel and reflect first.
is very interesting to look at. Also, it is difficult to determine the center depending on the viewing angle, so the operator must rely on his or her intuition. Furthermore, many of the workers are elderly with poor eyesight. For these reasons, Part 4 8a.

Centering reference line 5 with respect to index lines 8b and 12b within 12a
.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a highly accurate elevator equipment centering device that can perform the centering work of elevator equipment such as guide rails very simply, accurately, and efficiently in a short time. purpose.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the elevator equipment centering device of the present invention is provided with a gripping tool that is detachable from the elevator equipment, and at least two non-contact type gripping tools are provided on the gripping tool. The sensors for detecting the reference line are provided at a distance from each other, and the reference line for centering is within the detection operation area of both sensors, and when both sensors operate, the light is turned on to indicate that the elevator equipment has been centered. It is characterized by comprising a centering indicator for displaying.

(Function) In the elevator equipment centering device having the above configuration, when centering an elevator equipment such as a guide rail, a reference line for centering is set vertically at a predetermined position in the hoistway, and the elevator equipment is gripped. Attach the tool, and in this state move and adjust the elevator equipment together with the gripping tool so that it aligns with the centering reference line. Now, when the centering reference line enters the detection operation area of each of the at least two non-contact reference line detection sensors provided on the gripper, and both sensors operate, the centering indicator will appear. lights up. A worker can see this lighting at a glance and confirm that the elevator equipment has been accurately centered. In other words, the conventional work of placing the centering reference line into a small recess and matching it with the index line, which is extremely difficult to see, requires nerves, and is difficult to distinguish, is no longer necessary, and the centering of elevator equipment can be done easily. Work can be done very easily, accurately, and efficiently in a short time.

(Example) An example of the present invention will be described below with reference to FIGS. 1 to 3. Components in the figure that are the same as those shown in FIGS. 6 and 7 are given the same reference numerals to simplify the explanation.

Here, a centering device for a guide rail 1 which is temporarily fastened upright on an inner wall 3 of an elevator hoistway 2 via a rail bracket 4 is shown.

First, centering reference lines 5 such as piano wires are vertically provided at predetermined reference positions corresponding to both sides of the upright position of the guide rail 1, respectively, as in the conventional art.

On the other hand, as a guide rail centering device, a U-shaped block-shaped gripper 21 similar to the conventional one is applied to the guide rail 1 and attached by tightening a fixing bolt 22.

This gripping tool 21 has two reference surfaces 21a and 21b that are joined to the side surface and the top surface of the guide rail 1. The gripping tool 21 also has a fixed mounting plate 23 on its upper surface, which extends out from both sides and corresponds to a conventional ruler plate.

L-shaped notches 23a are provided at the corners of both ends of the mounting plate 23.
is formed. Also, on both ends of the upper surface of the mounting plate 23, there are two proximity switches 24 as non-contact reference line detection sensors, one located approximately in the middle of each of the two orthogonal sides of the notch 23a. 25 is installed.

These two proximity switches 24 and 25 at each end are arranged on the same plane, spaced apart from each other and orthogonal to each other, as shown in the figure, so that the mutual detection operation areas A and B are approximately at the point C as shown in FIG. is set to duplicate status.

In addition, two proximity switches 24 .
25 is electrically connected via electric wires 30.degree. 31 to an amplifier 28.29 having a lamp 26.27 as a centering indicator. In addition, each amplifier 28 and 29 has a power supply 32
is connected to via electric wires 33 and 34. Said lamp 2
Amplifiers 28 and 29 with 6.27 and a power supply 32 are respectively attached to the upper surface of the mounting plate 23. When the centering reference line 5 enters the detection operation areas A and B of the proximity switches 24.25, each of the proximity switches 24.2
5a performs a detection operation, and the lamps 26 and 27 connected to each of them are individually lit by the detection operation.

Therefore, in order to center the guide rail 1 temporarily erected in the hoistway 2 using the centering device having the above-mentioned configuration, first, a While centering reference lines 5 are vertically provided at predetermined reference positions as in the conventional manner, the gripping tool 21 is applied to the guide rail 1 and attached by tightening the fixing bolt 22.

In this state, the guide rail 1 is moved and adjusted together with the gripper 21, and the notches 23 at both ends of the mounting plate 23 on the upper surface of the gripper 21 are adjusted.
Do not align so that the centering reference lines 5 on both sides are near a. In this state, the guide rail 1 and the gripper 21 are further finely adjusted. Now, when the centering reference 1s5 enters the detection operation areas A and B of the two proximity switches 24.25 on each side on the mounting plate 23, the respective proximity switches 24.25 will operate for detection. , the lamps 26 and 27 connected to each light up individually by the detection operation.

In this way, when all four lamps 26 and 27, two on each end, are lit, the centering reference lines 5 on both sides
has entered the overlapping point C in the detection operation areas A and B of the two proximity switches 24 and 25 on each side, so at that point the guide rail 1 has been accurately centered. It turns out. Therefore, when the worker visually confirms that all the lamps 26 and 27 are lit, he stops adjusting the movement at that point and fully tightens the guide rail 1 to the rail bracket 4 to fix it.

Since accurate centering work can be performed, anyone can easily check it at a glance, and the centering work can be easily performed even in a dimly lit hoistway 2. In other words, the inefficient work of placing the centering reference line 5 into a small recess on the ruler plate and matching it with the index line, which is very difficult to see, requires nerves, and is difficult to distinguish, as in the past, is no longer necessary. The centering work of the rail 1 can be performed very simply, accurately, and efficiently in a short time.

Note that the detection operation area A of the proximity switch 24, 25,
Since B can be easily changed by operating the adjustment knobs of the individual amplifiers 28 and 29, a predetermined centering accuracy can be obtained by changing the set value as appropriate depending on the centering accuracy of the elevator equipment.

In addition, one lamp 26.27 was provided for each proximity switch 24.25 as an indicator, but this is a single lamp that lights up only when the two proximity switches 24.25 are both in detection operation. It is also possible to configure it with

Furthermore, in the embodiment described above, an example was shown in which two centering reference lines 5 are vertically provided for one guide rail 1 to perform centering work, but as shown in FIG. , 1 at the same time, by connecting the left and right gripping tools 21, 21 together with the connecting member 40, it is only necessary to set one centering reference line 5 perpendicularly to the guide rail 1. It becomes like this.

Further, in each of the above embodiments, the proximity switch 24, 25 was used as a non-contact type reference line detection sensor, but various other sensors can be used as long as they have a function that can specify the detection operation area. . For example, as shown in FIG. 5, a U-shaped recess 23b is formed in the mounting plate 23 on the gripper 21, and the phototubes are arranged so as to face each other on two straight lines that intersect at the center point 50 in the recess 2Bb. An element 51 and a light-receiving element 52 are provided, and when each phototube detects the centering reference line 5 at the center point 50, a lamp 26, 27 serving as a centering indicator lights up. This configuration is also possible.

Further, in the above embodiment, an example was shown in which the present invention was applied to the centering work of the guide rail 1, but it can also be applied in substantially the same way to the centering work when installing elevator equipment such as doorway sills.

〔Effect of the invention〕

Since the elevator equipment centering device of the present invention is configured as described above, when centering elevator equipment such as guide rails, it can be operated without contacting the centering reference line vertically installed in the hoistway. Accurate centering can be confirmed at a glance when the indicator lights up, and unlike conventional methods, the centering reference line is placed in a small recess and matched with the index line, which is very difficult to see. Difficult and inefficient work is no longer necessary, and the centering work of elevator equipment becomes extremely simple and accurate, and can be performed efficiently in a short period of time with high accuracy.

[Brief explanation of drawings]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a plan view of the guide rail centering operation, FIG. 2 is a perspective view of the main part of FIG. 1, and FIG. 4 is a schematic plan view showing another embodiment of the present invention, and FIG. 5 is a main part showing another embodiment of the present invention. 6 is a plan view showing a conventional example, and FIG. 7 is a perspective view showing another conventional example. 1.12... Elevator supplies (1... Guide rail. 12... Threshold), 2... Hoistway, 5... Reference line for centering, 21... Gripping tool, 24, 25 ,51.52・
...Reference line detection sensor (24, 25... proximity switch, 51.52... phototube), A, B... detection operation area, 26.27... indicator (lamp). Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] An elevator equipment centering device for centering elevator equipment such as a guide rail by aligning it with a centering reference line vertically installed in a hoistway, comprising a gripping tool that can be detached from the elevator equipment, the gripping tool at least two non-contact reference line detection sensors are provided spaced apart from each other,
The elevator is further provided with a centering indicator in which the centering reference line falls within the detection operation area of both sensors, and the centering indicator lights up when the two sensors perform the detection operation to indicate that the elevator equipment has been centered. Supplies centering device.