JP3369451B2 - Escalator step link replacement method and drawer rail device used therefor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of exchanging an escalator step link and a pull-out rail device used for the method, and more particularly to a method of exchanging an escalator step link which can reduce working time.

[0002]

2. Description of the Related Art In an escalator in which a large number of endlessly linked step links are guided along a drive rail through guide rollers to circulate steps, the step links are replaced when the step links are worn. Must. For this purpose, many connecting bolts of the step link must be removed.At this time, the worker removes the floor plate of the escalator landing, enters the machine room, removes the connecting bolt, and removes the step link from the guide rail. I was working to put it on the floor of the landing. In recent years, escalators have been installed in large buildings, department stores, supermarkets, and subways, and have been installed at the platforms of JR and private railway stations due to welfare policies. It is not preferable for the escalator, which is a means of mass transportation in such a place, to stop for a long time due to replacement of the step link or the like because it causes a great trouble to the user.

In an escalator installed in such a subway or the like, a step is fixed to a step shaft fixed to an endless step link by a fastener, and the step link is connected from a drive unit through a speed reducer. It engages with the sprocket, and the endless step rotates to operate.

FIG. 19 is a side view of the escalator showing a state in which the step link exchange work is being performed by the conventional step link exchange method of the escalator. 1 is a rubber handrail, 2 is a deck board, 3 is an inner panel, and 4 is Forward drive rail, 5 is an adjustment rail, 6 is a turnmatic fixed rail, 7 is an inner rail, 8 is a circular rail, 9 is an adjustment rail, 10 is a forward follow rail, 11 is a return follow rail, 12 is a return drive rail, 13 Is an adjusting rail, 14 is a turnmatic fixed rail, 15 is an outer rail, 1
6 is a lower machine room.

Reference numeral 17 designates an old step link, which includes a forward drive rail 4, a return drive rail 12, adjusting rails 5 and 13, turnmatic fixed rails 6 and 14, an inner rail 7 of the upper and lower machine rooms, and a reversing portion of an outer rail 15. Through them, they can be connected endlessly to form a loop and circulate.

According to such a conventional technique, the step link of the escalator is replaced by the following process. First, check the number of transported step links (for transportation, step links are transported in pairs of 3 step links), stop the escalator, remove the landing plate in the upper machine room, turn off the power, and remove the skirt guard. The ornamental piece 27 is removed, the skirt guard 26 is removed, and steps 28 are completely removed from the step links. Next, the landing plate 29 in the lower machine room is removed, and the landing plate receiving angle is removed.

Next, the worker enters the lower machine room at the disconnection point 17 from the old step link 22 to the old step shaft 2
1 is removed, the loop of the old step link 22 is separated to form a chain of step links, and one end of the three step links of the new step link 22a is connected to the end of the separated old step link 22 on the outer rail 15 side. Two
1a is connected, the lower step operation is performed and the old step link 22a on the inner rail 7 side is brought out to the landing while the new step link 22a is fitted along the outer rail 15 and 3 from the end of the old step link 22 brought out to the landing. The old step axis 21 of the step link is removed near the separation point 17, and the removed old step axis 21 and old step link 22 are removed.
To remove.

Next, the above-mentioned work is performed by the old step link 22.
Is repeated until all the parts are replaced, and both ends of the new step link 22a are connected by the new step shaft 21a to form a loop again, and the step link replacement work is completed.

[0009]

When exchanging the step link of the escalator by such a conventional method, a worker enters a machine room where the work environment is narrow and the working environment is bad, and the connecting bolt is removed while keeping the posture unreasonable and heavy. The work of removing the step link from the guide rail and placing it on the landing floor must be repeated. For this reason, it is difficult and time-consuming to replace the step link of the escalator.

In the conventional method of exchanging the step link of the escalator as described above, the step link is exchanged in the lower machine room or in the vicinity thereof, so that the exchange work can be performed by only two or three persons. However, there was a problem that the working time was long and the suspension time of the escalator was also long. Further, the work space of the lower machine room is small, and the weight of the three-step link varies depending on the type, but even a lightweight step link has a heavy weight of about 40 kg, which poses a problem for worker safety.

Therefore, the present invention has been made to solve the above-mentioned problems, and an object thereof is to use a method of exchanging an escalator step link and a method of exchanging the escalator step link, which enables easy work in a short time. It is to obtain a drawer rail device for step link exchange for.

[0012]

According to the present invention, a step link of an escalator, which is connected in an endless loop shape and has a number of step links each having a guide roller at each connection part, is guided and circulated along a drive rail. To replace
Install a drawer rail device that extends from the vicinity of the drive rail in the machine room to the floor of the building, remove one connection part of the step link loop, and form a step link chain with one end and the other end. One end of the guide roller is placed on the pull-out rail device, one end of the chain of step links is moved along the pull-out rail device, and the step links are sequentially moved from the drive rail to the pull-out rail device to chain the step links. On the escalator platform, lower the step link chain from the drawer rail device on the escalator platform, and place the new step link chain on the drawer rail device on the escalator platform.
The chain of new step links is sent along the pull-out rail device and moved onto the drive rail, and one end and the other end of the chain of new step links are connected in the machine room to form an endless loop of new step links on the drive rail. A method of exchanging an escalator step link for making a machine is obtained.

Further, according to the present invention, in order to replace the step link of the escalator, which is connected in the form of an endless loop and has a large number of step links each having a guide roller at each connecting portion, is guided along the drive rail and circulates. It is a drawer rail device for step link exchange used, one end of which is extended from the inside of the machine room to the floor of the building and has one end at a position where a guide roller at one end of the step link which is disconnected and chained can be exchanged. , The other end can be arranged on the building floor, and is connected to the other end of the guide rail, which is placed on the building floor, and a guide rail for guiding the step roller guide roller.
A drawer rail device for exchanging a step link of an escalator, which is provided with a holding rail that holds step links sequentially drawn from a drive rail through a guide rail.

Further, according to the present invention, it is possible to variably connect the guide rail and the holding rail of the pull-out rail device for exchanging the step link of the escalator to each other in a variable angle.

The holding rail may be provided with an extension rail whose length can be additionally adjusted according to the size of the installation place.

Further, the guide rail and the holding rail are of an assembly type structure provided with an opening stopper for holding each rail at a predetermined interval, a truss fixing mount for fixing to the truss, and a connecting tool for connecting with each other. You can also

Further, the opening stopper may be provided with an elongated hole and a fastener engaged with the elongated hole, and the rail interval can be adjusted.

Further, according to the present invention, a pipe shaft is provided at the center, and a length adjusting shaft is fixed to both ends of the pipe by screw members, and a screw is attached to both ends of the length adjusting shaft fastener. It is also possible to provide a dummy shaft provided with a shaft member which is fixed by locking, and the end portion of the shaft member is provided with a step roller so that division and assembly of the shaft can be repeated.

Further, according to the step link exchanging method according to the present invention, a large number of step links which are connected in an endless loop form and each of which has a guide roller at each connecting portion are guided along the drive rail to circulate. In order to replace it, remove the landing plates in the upper and lower machine rooms, remove all the steps from the loops of the step links in the lower machine room, and install additional drawer rails from the drive rails in the lower machine room to the floor of the landing. 1 step shaft is removed, the loop of the step link is cut off, one end of the step link is taken out along the pull-out rail to the landing floor, the step axis is removed on the landing floor, the step link is replaced and the step axis is attached. Put the link back along the pull-out rail, attach the step shaft and step link Return to the endless loop, move the step link to the next replacement part, repeat this procedure for all step links to be replaced, remove the drawer rail, attach all the steps to the step links, landing the upper and lower machine rooms It is a step link exchange method characterized by mounting a plate.

In the method of exchanging the step link of the escalator according to the present invention, the step shaft connecting the step links is detached, the step links are separated, and then the step links are pulled out in multiple stages on the guide rail installed at the landing, The number of step links is changed at once.

In the present invention, the number of steps is increased on the guide rail installed in the hall, and the number of steps of the old and new step links is changed at a time, thereby shortening the work time for step link exchange.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG. 1. FIG. 1 is a sectional view showing a step link exchange method for an escalator according to an embodiment of the present invention, the same as FIG. Alternatively, the corresponding parts are denoted by the same reference numerals and the description thereof is omitted.

In the figure, reference numeral 30 is a guide rail (drawer rail device), and the middle portion of the guide rail 30 is attached to a landing plate receiving angle mount 20 with nuts 61, 61a.
Eye bolt (denden bolt) 50 fixed by
Then, the truss fixing attachment metal 45 attached to the eye bolt 50 via the screw member 51 and the guide rail 30 are fixed to the truss fixing attachment metal 45 via the screw member 46. Further, one end of the guide rail 30 is placed on the inner rail 7, and the other end is fixed to a guide rail receiving base 65 which is attached to the guide rail opening stopper 75 via a fastener 85 via a screw member 41.

FIG. 2 is a perspective view of the lower portion of the escalator to which the escalator step link exchange method of the present invention can be applied. As shown, 26 is a skirt guard, 27
Is a skirt guard ornament, 28 is a step, and 29 is a landing plate.

FIG. 3 is a block diagram of the step axis. As shown in the figure, the step shaft 21 has step rollers 23 at both ends.
The step roller 23 transfers the drive rails 4 and 12, and the step link 22 is connected to the inside of the step roller 23 via the sleeve 31. The step link 22 includes a split retaining ring 32, a washer 34, a split retaining ring 35.
Bush 37 fixed by and receiving a step in the middle
Is equipped with.

Next, FIG. 4 is a side sectional view and a bottom view of the guide rail. As shown in the figure, the guide rail (drawer rail device) 30 includes a guide roller 23 and a guide rail 30.
It is a device for transferring the upper part and pulling out the step link 22 to the landing. It is a guide rail a (roller receiving portion) 70, a guide rail b (drawing rail) 80, and an extension rail (holding rail) 90. It is composed of.

FIGS. 5 to 13 are exploded perspective views of the components of the guide rail, and the detailed explanation is shown in FIG.
4, FIG. 15, FIG. 16 and FIG.

FIG. 14 shows a guide rail a (roller receiving portion) 7
0 is a block diagram of a guide rail b (drawer rail) 80. As shown in the figure, one end of the guide rail a 70 is placed on the inner rail 7, and the other end is connected to one of the hinges 40 by a screw member 41. The other side of the hinge 40 is fixed to one end of the guide rail b80 by a screw member 41a, and the hinge 40 connects the guide rail a70 and the guide rail b80 so that their angles can be changed.
The guide rail b80 has one end connected to the hinge 40 by a screw member 41a, and a truss fixing mount 45 fixed by a screw member 46. The landing plate receiving member is fixed to the building structural material as shown below the guide rail b80a. It is fixed to the angle mount 20. The connection between the truss fixing mount 45 and the landing plate receiving angle mount 20 is performed by inserting the eyebolt 50 fixed to the landing plate receiving angle mount 20 by the nuts 61 and 61a and the eye of the eyebolt 50. It is attached by a screw member 51. The other end of the guide rail b80 is attached to one of the hinges 41b by the screw member 4a.
It is fixed by 1d. In the guide rail a70, the step roller 23 is guided by the inner rail 7 and the guide rail a70.
Installed as horizontally as possible for easy transfer. Also, both ends of the side wall of the guide rail a70 are cut off in a triangular shape, one end is cut off so that the corners of the rail do not interfere with the transition of the step roller 23, and on the other side, the guide rail b80 is also a side wall end near the guide rail a70. Is cut into a triangle and the opening degree of the hinge 40 is increased to facilitate installation and removal of the guide rail a70 on the inner rail 7.

FIG. 15 is a diagram showing the construction of the guide rails b80, 80a and the extended guide rail 90. The guide rail b whose middle is fixed to the truss fixing mounting plate 45 as described above
As shown in the drawing, the other end 80 is fixed to one of the hinges 41b by a screw member 41d, and the other end of the hinge 41b is fixed to an extension guide rail 90a by a screw member 41e fixed to a guide rail receiving base 65. Eventually, the guide rail b80 and the extension guide rail 90 are connected via the hinge 40b, and the guide rail pedestal 65 is fixed to the extension guide rail 90. As described above, the guide rails b 80 and 80a that are pull-out rails and the extension guide rail 90a that is a holding rail are connected to each other by the hinge 41 that is a connecting tool.
b and 41a. Guide rail cradle 65
Is a fastener 75 having a bolt inserted in an elongated hole 75a provided in the guide rail opening stopper 75.
Mounted positionally with respect to. The distance between the left and right guide rails 90 and 90a is adjusted and set to a required distance when the guide rail receiving bases 65 and 65a are fixed to the guide rail opening stopper 75.

FIG. 16 is a structural diagram of a connecting portion when another extension guide rail 90c is connected to the extension guide rail 90. As shown in the figure, the extension guide rail 90 and the second extension guide rail 90c are provided with screw members 41f and 4f.
At 1 g, they are connected to each other by the guide rail pedestal 65b. The guide rail cradle 65b has screw members 41f, 4
Since the long hole 65d for receiving 1 g is formed, the guide rail receiving base 65b and the second extension guide rail 90 are formed.
The position between the extension guide rail 90 and the second extension guide rail 90c can be adjusted. At this time, even if there is a gap between the extended guide rail 90 and the second extended guide rail 90c, the guide rail cradle 65b acts as a guide rail, so that there is no hindrance to the movement and support of the step roller 23. There is also no. The guide rail pedestal 65b is connected to the opening stopper 75a by a fastener 85 so that the position can be adjusted. The left and right rail intervals can be set in the same manner as above.

FIG. 17 is a block diagram of the joint plate. As shown in the figure, the joint plate 55 is a guide rail pedestal 6
Guide rail b through screw members 41h and 41i to 5c
80 and the extension guide rail 90b are fixed. The joint plate 55 is used for fixedly connecting the guide rail b80 and the extended guide rail 90b when the lower machine room uses an extension truss and the guide rail b alone cannot reach the floor of the landing.

FIG. 18 is a sectional view of the dummy shaft 24. As shown in the figure, the dummy shaft 24 includes a pipe shaft 93 in the center, a nut 97 welded to the pipe shaft 93, and a shaft member 92 fixed by a fastener 96 inserted in the nut 97, A shaft 91 is fixed to the shaft 92 by screwing, and a step roller 23 attached to the shaft 91 by a stopper 94. Dummy axis 2
No. 4 can be detached from the step link 22 by opening the fastener 96 and releasing the screwed fixing of the shaft 91 and the shaft 92.

Next, a method of exchanging step links according to the embodiment of the present invention will be described with reference to FIGS. First, as a work preparation, the number of transported new step links 22a is confirmed (the transportation new step link 22a is 3
Then, the escalator is stopped, the landing plate 29 in the upper machine room is removed, and the power is cut off. Next, skirt guard ornament 2
7 is removed and the skirt guard 26 near the drive unit
Is removed, and all the steps 28 are removed from the step shaft 21 and removed.

Next, the landing plate 29 of the lower machine room 16 is removed, the landing plate receiving angle is removed, and a guide rail (drawer rail device) 30 as a replacement jig is installed on the extended guide rail 90 according to the size of the landing. Decide the number and attach it at the specified position
70 is fixed with a string or the like so as not to hit the old step link 22. Next, the replacement number of the old step link 22 is confirmed.

Then, the old step shaft 21 to be removed is marked, the old step shaft 21 is separated, the old step link 22 is moved to the point 17, the old step shaft 21 is removed, and the dummy is provided at both ends of the old step link 22. Attach the shaft 24,
One end on the inner rail 7 and the other end on the outer rail 1
5, the old step link 22 is placed on the guide rail a70, the guide rail a70 is unfixed, the old step link 22 on the inner rail 7 is lifted, the guide rail a70 is installed, and the old step link 22 is placed on the guide rail a70. , The escalator is driven down, and the old step link 22
On the guide rail 30 where the
Then, the movement of the old step link 22 is stopped, the attached dummy shaft 25 is removed, the step shaft 21 is removed every three steps, and the removed old step link 22 and step shaft 21 are removed.

Next, the same number of the old step links 22 from which the new step links 22a have been removed are placed on the guide rails, and the new step shaft 21a is attached every 3 steps, and the connecting portion between the new step link 22a and the old step link 22 is terminated. The dummy shaft 24 is attached to the new step link 22a of the above, it is confirmed that all the new step links 22a of the landing are connected, the ascending operation is performed, the new step link 22a is returned to the original position, and it is installed on the inner rail 7. The guide rail a70 is fixed with a string or the like so as not to hit the step shaft 21. Next, remove the dummy shafts 24 at both ends,
The new step link 22a and the old step link 22 are connected by the dummy shaft 25, the old step link 22 is moved to the next replacement position, and the above work is repeated until all the old step links 22 have been replaced, and finally The new step links 22a at both ends are connected by the new step shafts 21a, and the exchange is completed.

Next, the installed guide rails 30 are removed, the landing plate receiving angles are attached, all the steps 28 are attached, the trial run is performed, it is confirmed that there is no abnormality, the skirt guard 26 is attached, and then the skirt guard is attached. The decoration 27 is attached, the landing plates 19 in the upper and lower machine rooms are attached, the tools are removed, and the trial run is performed again to confirm that there is no abnormality. With the above, the step link exchange work is completed.

According to the method of exchanging the step link as described above, the step link can be removed and attached many times at a time, the working time can be greatly shortened, and the escalator stop time can be shortened to less than half of the conventional time. Also, lower machine room 1
The work at 6 is reduced, the dangerous work of the worker is reduced, and the safety is improved.

[0039]

As described above, the step link exchanging method for the escalator according to the present invention uses the dummy shaft and the guide rail that is the pull-out rail device to move the step link to a wide place on the landing floor. Many step links can be replaced at a time, the number of times and time to enter the lower machine room can be reduced, and work can be done on a large landing floor.Thus, these can shorten the work time and reduce dangerous work. The effect of improving safety can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a step link exchange method for an escalator according to an embodiment of the present invention.

FIG. 2 is a perspective view of a lower portion of an escalator to which the present invention can be applied.

FIG. 3 is a perspective view of a step link and a step shaft of an escalator to which the present invention can be applied.

FIG. 4 is a side view and a bottom view showing a drawer rail device used in the step link exchange method for the escalator of the present invention.

FIG. 5 is a three-view drawing showing a roller receiving portion of the drawer rail device.

FIG. 6 is a three-view drawing showing a drawer rail of a drawer rail device.

FIG. 7 is a three-sided view showing a holding rail of the drawer rail device.

FIG. 8 is a three-sided view showing a truss fixing mount of the drawer rail device.

FIG. 9 is a three-view drawing showing an eyebolt of the drawer rail device.

FIG. 10 is a three-view drawing showing a rail pedestal of the drawer rail device.

FIG. 11 is a three-sided view showing an extension rail of the drawer rail device.

FIG. 12 is a view showing a rail opening stopper of the drawer rail device 3
It is a side view.

FIG. 13 is a three-view drawing showing a fastener of the drawer rail device.

FIG. 14 is an exploded perspective view showing the relationship between the drawer rail device of the present invention and the drive rail of the escalator.

FIG. 15 is an exploded perspective view showing a holding rail and an extension rail of the drawer rail device.

FIG. 16 is an exploded perspective view showing a connecting portion of an extension rail.

FIG. 17 is an exploded perspective view showing a joint plate portion of the holding rail.

FIG. 18 is a partial cross-sectional side view of the dummy shaft of the present invention.

FIG. 19 is a schematic side view showing a conventional step link exchange method for an escalator. 22 step links, 23 step rollers, 2
4 dummy shaft, 28 steps, 30 pull-out rail device, 80 pull-out rail (guide rail), 90 holding rail (extension rail)

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields investigated (Int.Cl. ⁷ , DB name) B66B 21/00-31/02

Claims (8)

(57) [Claims] 1. A drive rail in a machine room for exchanging a step link of an escalator, which is connected in an endless loop shape and has a plurality of step links each having a guide roller at each connection portion and is guided and circulated along the drive rail. Install a drawer rail device that extends from the vicinity to above the building floor, remove one connection part of the loop of the above step link,
A chain of step links having one end and the other end is formed, the guide roller at one end of the chain of step links is placed on the pull-out rail device, and the one end of the chain of step links is arranged along the pull-out rail device. By moving the step links from the drive rail to the pull-out rail device to draw the chain of step links to the escalator platform, and from the pull-out rail device to the step link on the escalator platform. A chain of new step links is arranged on the drawer rail device on the escalator platform, and the chain of new step links is sent along the drawer rail device to be moved onto the drive rail. in the machine room and connects the said one end and said other end of the chain of the new step links, the Escalator replacing step link, characterized in that to produce an endless loop of a new step link on the dynamic rail. 2. A drawer for exchanging a step link used for exchanging a step link of an escalator, which is connected in an endless loop shape and has a plurality of step links each having a guide roller at each connecting portion and is guided and circulated along a drive rail. A rail device, which extends from the inside of the machine room to the floor of the building and has one end arranged at a position where a guide roller at one end of a step link that has been disconnected and chained can be transferred, and the other end is a building A guide rail that may be arranged on the floor and guides by placing the guide roller of the step link, and that is placed on the building floor and connected to the other end of the guide rail, and sequentially from the drive rail through the guide rail. A pullout rail device for exchanging a step link of an escalator, comprising: a holding rail that holds the pulled out step link. 3. The guide rail and the holding rail are connected to each other so that their angles can be changed.
Drawer rail device for step link replacement of the described escalator. 4. The drawer rail device according to claim 2, wherein the holding rail is provided with an extension rail whose length can be additionally adjusted according to the size of the installation place. 5. The guide rail and the holding rail are stoppers for holding the rails at predetermined intervals,
The drawer rail device according to claim 2, wherein the drawer rail device has a truss fixing mount for fixing to a truss and a connecting tool for connecting to each other. 6. The drawer rail device according to claim 5 , wherein the opening stop includes an elongated hole and a fastener that engages with the elongated hole, and a rail interval can be adjusted. 7. A pipe shaft is provided at the center, and a length adjusting shaft is fixed to both ends of the pipe by screw members,
A dummy shaft is provided with shafts fixed to both ends of this length adjusting shaft fastener by screwing, and the ends of the shafts are provided with step rollers so that the splitting and assembling of the shaft can be repeated. . 8. A plurality of step links, which are connected in an endless loop and have guide rollers at each connection, are guided along a drive rail to circulate by circulating the escalator step links. Remove the landing plate, remove all steps from the loop of the above step link in the lower machine room, additionally install the pull-out rail from the drive rail section of the lower machine room to the floor of the landing, remove one step axis of the step link and step. Separate the loop of the link, put one end of the step link onto the landing floor along the drawer rail, remove the step axis on the landing floor, replace the step link and attach the step axis, and move the step link back along the drawer rail. Return the step link to the endless loop by attaching the step shaft, and Steps characterized by moving to the replacement part, repeating the above procedure for all the step links to be replaced, removing the drawer rail, attaching all the steps to the step links, and attaching the landing plates of the upper and lower machine rooms. Link exchange method.