JPS63272767A - Guide-rail centering tool for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention is suitable for centering work when installing guide rails for cars and counterweights of lifting equipment such as elevators, or for plungers of hydraulic elevators. Regarding the guide rail centering member used.

(Prior Art) In general, in lifting devices, especially elevators, there are various factors such as operation control methods and other factors that cause the shaking of the passenger seat during travel, but the centering accuracy of the guide rail accounts for the largest proportion. occupy For this reason, great importance is placed on centering work when installing the idle rail along the inner wall of the hoistway.

Incidentally, the centering work for installing such a guide rail has conventionally been carried out as shown in FIGS. 6 and 7. That is, in FIG. 6, reference numeral 1 denotes the inner wall of the hoistway, and an inverted seven-plate wall bracket 3 is temporarily attached to this via an anchor bolt 2. Attach the plate-shaped rail side bracket 4 to the bolt 5
Then, the guide rail 6 is attached to the surface side of the rising plate part of the rail-side bracket 4 in a temporarily tightened state using a rail clip 7. In this state, a centering reference line 8 of steel wire or the like is suspended from the top of the hoistway, and a hammer 9 as shown by the imaginary line is used to align the guide rail 6 with the bracket 3.
．． The position of the guide rail 6 is corrected by hitting each part of the guide rail 6 or the guide rail 6, or by pressing a crowbar 10 against the guide rail 6. Then, as shown in FIG. 7, apply the centering confirmation tool 11 and check that the guide rail 6 is properly centered at the predetermined position.Finally, tighten the bolts 5, rail clips 7, and anchor bolts 2. The parts were firmly tightened to secure each part to each other, and the installation and centering work of the guide rail 6 was completed.

(Problems to be Solved by the Invention) In the conventional guide rail centering work described above, in order to center the guide rail 6 at a predetermined position, the worker hits each part many times with a heavy hammer 9. Since the movement is corrected by pushing with the crowbar 10, the work itself requires a lot of effort and skill, and if you push or pull too much, you can't move it smoothly to the specified position, which is very troublesome and reduces work efficiency. It was bad and inefficient.

In addition, since the work is carried out on narrow scaffolding in the hoistway, if the heavy hammer 9 fails to hit the target and misses when it is lowered, or if the crowbar 10 comes off when strong force is applied, the There was a risk of a fall accident for the worker.

Furthermore, after confirming the centering of the guide rail 6 to the predetermined position,
When the bolts are fully tightened to firmly fix each part, there is a problem that the bracket 4 and the guide rail 6 shift and move, causing the centering accuracy to become incorrect.

The present invention has been developed in view of the above circumstances, and allows the guide rail centering work to be performed very easily, reliably, safely and efficiently, and also when fully tightening the bolts of each part after checking the centering. To provide a very simple guide rail centering tool which can prevent centering accuracy from being disturbed due to deviation of the guide rail and which is useful for improving workability.

[Structure of the invention]

(Means for Solving the Problem) In order to achieve the above object, the guide rail centering tool for the lifting device of the present invention has a rail-side bracket that fixes the guide rail directly on the back side of the guide rail or with a rail clip. A horizontally long adjustment plate is installed through the screws, and each screw can be rotated and fed in a direction facing the inner wall of the hoistway by screwing one screw into each screw hole provided at each end of the adjustment plate.
It is characterized by being composed of a pair of screw rods installed in the Noh.

(Function) With the above configuration, the adjustment plate of the centering tool of the present invention is attached to the back side of the guide rail that is temporarily attached to the inner wall of the hoistway via a bracket, and the adjustment plate of the centering tool of the present invention is installed in the screw holes at both ends of the adjustment plate. By rotating and feeding the screw rods that are screwed together, the guide rail is moved along the centering reference line by the forward and backward screw feeding force of each screw rod. This makes it possible to easily, reliably, and safely perform the guide rail centering work without using a hammer or crowbar, which requires skill and is dangerous as in the past. Furthermore, even during final tightening after checking the centering, the guide rail will not be temporarily held and will not shift.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. Components having the same configuration as those shown in FIG. 6 are given the same reference numerals in the drawings to simplify the explanation, and the centering confirmation tool is the same as that shown with reference numeral 11 in FIG. 7. Therefore, illustration is omitted.

First, as a guide rail centering adjustment tool of the present invention, as shown in FIGS.
0 is attached, screw rings 21 are inserted through each end of the adjusting plate 20, and washers 22 are attached to the tips of these screw rings 21, respectively, and a pair of fixing devices are installed to individually catch these washers 22. Tools 23 are attached to both sides of the wall bracket 3, respectively.

That is, the adjustment plate 20 is a horizontally elongated piece of steel plate or the like, and hook-shaped hook portions 20a facing each other are formed on the surface side of both ends of the adjustment plate 20, so that the rail-side bracket 4 can be raised. It is latched by inserting the K into the plate part from above. Furthermore, screw holes 20b are formed further toward both ends. The screw rings 21 are screwed into each of the screw holes 201) and passed through the screw holes 201). Both threaded rods 21 are long, and a handle 21a is welded to the base end of each rod in a direction orthogonal to the axis, so that the screw can be rotated to feed the rod. The disk-shaped washers 22 are attached to the tips of each of the screw rings 21 so as to be rotatable without coming loose, and the washers 22 are individually fixed to a fixture 23.

As shown in FIGS. 3 and 4, both fixtures 23 have a mouth-shaped mounting portion 23a in the lower half, and a tightening bolt 23b is screwed into the lower portion of the mounting portion 23a. Wall bracket 3
Tightening can be fixed to the side edge of. Further, cutout portions 23c and 23d are formed in the road half portion, into which the screw ring 21 and its end washer 22 can be inserted from the side.

Therefore, in order to perform guide rail centering work using the above-mentioned centering tool, first, as in the conventional case, the guide rail is attached to the inner wall 1 of the hoistway via the wall side bracket 3, the rail side bracket 4, and the rail clip 7. 6 is temporarily tightened. In this state, fit the adjustment plate 20 into the rising plate part of the rail side bracket 4 from above and
Hold it at 0a. Now, the screw rings 21, which are inserted through the screw holes 20b on both ends of the adjustment plate 2°, are oriented so as to face the inner wall 1 of the hoistway, and the washers 22 at the ends of the screw rings 21 are placed on the upper surface of the wall bracket 3. Place it in position. Next, a pair of fixing devices 23 on both sides are attached to both sides of the horizontal plate portion of the wall bracket 3 so that the end sides of the screw rings 21 and the washers 22 on both sides enter the notches 23c, 23d of the fixing devices 23. and securely attach it by tightening the bolt 23b.

Now, when an operator rotates the threaded rings 21 on both sides while holding each handle 21a to feed the screw, the tips of the threaded rings 21 are received by the fixture 23 via the washer 22, so that The forward and backward screw feeding force accompanying the rotational operation of each screw rod 21 acts on the adjustment plate 20 to move the rail side bracket 4, and if the threaded rod 21 is not rotated, the adjustment plate 20 and the rail side The bracket 4 is temporarily held without moving.

In this state, as in the conventional case, hang the centering reference line 8 from the top of the hoistway, apply the centering confirmation tool 11 shown in FIG. 7 to the guide rail 6, and check the measured value. Check whether there is a need for work (correcting the centering position of the guide rail 6). And if there is no need for it,
The installation of the guide rail 6 is completed by firmly tightening the bolts of each part while it is temporarily held as it is, but in many cases, some centering work is required, so the guide rail While confirming the movement amount and direction of the guide rail 6 with the centering confirmation tool 11, the screw rings 21 on both sides are rotated to feed the screw rings 21 on both sides accordingly, and the rail side bracket 4 is moved together with the adjustment plate 20, and the guide rail is moved. Perform the position correction in step 6.

Its position is corrected by rotating the screw of the screw ring 21 instead of hitting it with a heavy hammer or pushing it with a crowbar as in the past, so the work is easy and safe, and
Fine adjustment is possible and efficient position correction is possible.

When the guide rail 6 is correctly positioned and within a predetermined centering accuracy value, the bolts of each part are firmly tightened and welded to complete the fixing work of the guide rail 6. During this final tightening, since the adjustment plate 20 is held by the screw rings 21 on both sides, the rail-side bracket 4 is also temporarily held and does not move freely, so that the guide rail 6, which has been centered once, The inconvenience of fluctuations is eliminated.

In addition, FIG. 5 shows another embodiment of the present invention, and here, as shown in the figure, the guide rail installation using the narrow wall side bracket 3A and the rail side bracket 4A is a structural case, and the guide rail is installed in the hoistway. Since the distance between the inner wall 1 and the back surface of the guide rail 6 is narrow, it is not possible to provide the fixing device 23 as shown in the above embodiment. abutted, those screw rods 2
The rotary screw feeding operation of 1 only causes the guide rail 6 to be pulled out inward of the hoistway. Even with this, the number of times a hammer is used is significantly reduced compared to conventional centering work, and it also helps improve efficiency and safety when working with a crowbar in an unreasonable position.

〔Effect of the invention〕

As described above, by using the guide rail centering tool of the present invention, the guide rail centering work can be performed very easily and reliably, safely and efficiently.
When the bolts of each part are fully tightened after centering has been confirmed, the guide rail does not shift and move and the centering accuracy is not disturbed, and it is very simple and has the effect of improving workability.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention. Figure 1 is a side view of the main part of the installation state of the centering tool in use, and Figure 2 is shown along the line ■-■ in Figure 1. A cross-sectional view along Fig. 2 is shown in Fig. 2.
4 is a sectional view taken along line rV-rV in FIG. 3, FIG. 5 is a view equivalent to FIG. 2 showing another embodiment of the present invention, and FIG. 6 is a conventional example. FIG. 7 is a partially sectional plan view showing the centering confirmation tool. 1... Hoistway inner wall, 3... Wall side bracket, 4...
・Rail side bracket, 6...Guide rail, 7...
・Rail clip, 8... Reference line for centering, 11...
- Centering confirmation tool, 20... Adjustment plate, 21... Screw rod, 21a... Handle, 22... Washer, 23...
Fixture. Applicant's Representative Patent Attorney Takehiko SuzueFigure 2Figure 3Figure 4Figure 5Figure 6Figure 7

Claims (3)

[Claims] (1) A rail side bracket that is used for centering work when installing a guide rail along the inner wall of the hoistway of a lifting device, and is used to secure the guide rail directly to the back side of the guide rail or with a rail clip. A horizontally long adjustment plate is installed through the adjustment plate, and one screw is screwed into each screw hole provided at each end of the adjustment plate, and each screw is installed through the shaft in a direction facing the inner wall of the hoistway so that the screws can be operated. A guide rail centering tool for a lifting device, characterized by comprising a pair of screw rods. (2) The guide rail centering tool for a lifting device according to claim 1, wherein the threaded rod has a rotatable washer at its tip. (3) The guide rail centering tool for a lifting device according to claim 2, wherein the washer is received in a notch of a fixture that can be fixed to a wall bracket attached to the inner wall of the hoistway.