JPH07187556A - Man-conveyor - Google Patents

Abstract

PURPOSE:To simplify the structure of a connecting part of footstep rails as well as to reduce manufacturing costs of the footstep rails by simplifying the finishing of the footstep rails while preventing safety and workability in installation/maintenance work from being deteriorated. CONSTITUTION:One side follow-up side rail 10 is arranged in the inclined part or the vertically bent part on the returning passage side of a circulating path of a footstep 2 at distances to a follow-up roller 5, and the follow-up side rail 10 is not brought in contact with the follow-up roller 5. When a worker steps onto the footstep on the returning passage in the installation/maintenance work, the footstep 2 is inclined, thereby the follow-up roller 5 is brought in contact with the follow-up side rail 10 not in contact with the follow-up roller 5 in the normal driving and receives load.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor, and more particularly to a structure of a step rail for guiding the movement of the steps.

[0002]

2. Description of the Related Art FIG. 6 is a block diagram showing an example of a conventional escalator. In the figure, in a truss 1, a large number of steps 2 are arranged endlessly connected by a chain 3. A pair of drive rollers 4 and a pair of follower rollers 5, which are step rollers, are provided on both sides of each step 2 in the width direction, and each step 2 includes these four rollers 4, 5.
Cycles by traveling. A balustrade 6 is erected on each truss 1 on both sides of the step 2. On the balustrade 6,
A moving handrail 7 is provided, which moves circularly in synchronization with the step 2.

Next, FIG. 7 is a sectional view taken along line VII-VII in FIG. In the figure, the vertical member 8 provided on the truss 1 includes a drive side rail 9 that is a step rail that supports and guides the drive roller 4, and a follower side rail 10 that is a step rail that supports and guides the follower roller 5. Are fixed by welding. These step rails 9 and 10 are normally made of a material having high rigidity in order to support the repeated load by the step rollers 4 and 5, and the contact surfaces of the step rails 9 and 10 are smooth to prevent vibration and noise. It is finished.

8 is a sectional view taken along the line VIII-VIII of FIG. 7, FIG. 9 is a partial plan view of FIG. 8, and FIG. 10 is a sectional view taken along the line XX of FIG. is there. In the figure, a rail connecting device 11 is provided at the connecting portion of the follower rail 10. The rail connecting device 11 has first to third connecting fittings 11a to 11c, and the follower rail 10 is received from the lower surface of the connecting portion so that the connecting portion can sufficiently support the load. Connected. Further, although not shown in the drawing, the connecting portion is connected to the drive-side rail 4 with substantially the same structure.

[0005]

In the conventional escalator constructed as described above, the step rails 4 and 5 are provided.
In order to finish the roller contact surface of the roller smoothly, an expensive polishing angle is used as the rail material, and at the time of painting, it is necessary to mask to prevent the paint from adhering to the roller contact surface. There was a problem that it took time. Further, although the rail connecting device 11 is used for the connecting portions of the step rails 4 and 5, the parts of the connecting fittings 11a to 11c are provided so that the load applied to the step rails 4 and 5 can be sufficiently received at the connecting portions. There is also a problem in that the number of points increases and the manufacturing and assembling and installation work time becomes long.

On the other hand, Japanese Utility Model Laid-Open No. 60-56674 discloses a curved escalator in which one of the follower rails on the return path is omitted. When an operator removes the step on the outward path and works on the step on the return side, there is a risk that the step will fall out due to the position of the center of gravity of the operator, and the safety is low, and therefore the operator is always in the position on the step. Attention must be paid, and there is a problem that work efficiency is reduced.

The present invention has been made to solve the above problems, and can reduce the manufacturing cost of a step rail and simplify the structure of the connecting portion of the step rail. The purpose of the present invention is to provide a man conveyor that can be manufactured and assembled easily and can be made inexpensive as a whole, and can prevent the safety and workability from being lowered during installation and maintenance work. To do.

[0008]

The passenger conveyor according to the invention of claim 1 is at least a part of the return side of the circulation path,
The remaining step rails except at least three of the step rails are arranged at intervals with respect to the step rollers.

In the passenger conveyor according to the second aspect of the present invention, the remaining step rails except at least three of the step rails are spaced from the step rollers at the slope and the up-and-down curved portion on the return side of the circulation path. And the other parts are arranged at positions contacting the step rollers.

In the passenger conveyor according to the third aspect of the present invention, the connecting portion of the step rail, which is provided at a distance from the step roller, is flush with the outer surface of the step roller. In addition to the above configuration, the connection plate is attached to the side surface of the rail.

In the passenger conveyor according to a fourth aspect of the present invention, the step rail of the portion provided at a distance from the step roller is made of a non-polishing material.

In the passenger conveyor according to a fifth aspect of the present invention, the surface of the step rail, which is provided at a distance from the step roller, facing the outer peripheral surface of the step roller, is coated.

[0013]

According to the first aspect of the present invention, a part of the step rail is brought into non-contact with the step roller on the return side where the load of passengers is not applied during normal operation, thereby simplifying the finishing of that part of the step rail. Can be installed and
When an operator rides on the step on the return side during maintenance, the step roller comes into contact with the step rail, which was not in contact during normal operation, and receives the load.

According to the invention of claim 2, the path on the return side of the step rail is translated in the horizontal direction,
It is possible to dispose the step rail at a distance to the step roller at the slope and the up-and-down curved portion on the return path, and to place the step rail in the other portion in contact with the step roller.

According to the third aspect of the invention, the surface of the connecting portion of the step rail facing the outer peripheral surface of the step roller is flush.
By connecting the connecting portion with the connecting plate having a simple structure, the cost is reduced as a whole.

In the invention of claim 4, the step rail is made of a non-polished material, thereby reducing the material cost.

According to the fifth aspect of the present invention, by coating the surface of the step rail facing the outer peripheral surface of the step roller, masking at the time of coating can be omitted and manufacturing can be facilitated.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. Example 1. 1 is a sectional view of an escalator according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and the same or corresponding parts as those in FIGS. 6 and 7 are designated by the same reference numerals. However, the description is omitted.

In the figure, one follower rail 10 is
The inclined portion and the upper and lower curved portions on the return side of the circulation path are spaced apart from the follower roller 5, and the follower roller 5
Is not in contact with. The follow-up rail 10 is arranged so that the follow-up roller 5 is in contact with other portions including the upper and lower horizontal portions on the return path side. In addition, each step roller 4,
The stepped rails 9 and 10 in the portion in contact with 5 use the same polishing angle as the conventional one, but the trailing side rail 1
A non-polishing material having a rough surface, that is, a normal angle material is used in a portion which is not in contact with the follow-up roller 5 of 0.
Further, the trailing side rail 10 that is not in contact with the trailing roller 5 is coated on the entire surface including the surface facing the outer peripheral surface of the trailing roller 5.

Further, FIG. 3 shows a connecting portion (A in FIG. 2) in a portion of the following rail 10 of FIG. 2 which is not in contact with the following roller 5.
Part), and FIG. 4 is a sectional view taken along the line IV-IV of FIG. In the figure, the connecting portion of the follow-up side rail 10 that is not in contact with the follow-up roller 5 has a surface facing the outer peripheral surface of the follow-up roller 5 that is flush with each other and is bolted to the side surface. For example, they are connected by a connecting plate 21 made of a steel plate.

In the escalator constructed as described above, since one of the follower rails 10 is not in contact with the follower roller 5 at a part of the return path, the follower rail 10 of that part is polished. It is possible to use a low-priced angle material that is not processed. Further, the step rails 9 and 10 that come into contact with the step rollers 4 and 5 need to be masked on the roller contact surface at the time of painting in order to finish the roller contact surface smoothly. In the non-contact area, it is possible to paint the entire surface without masking. Therefore,
The manufacturing cost will be reduced as a whole.

If the distance L between the follower rail 10 and the follower roller 5 is made small (for example, about 5 mm), an operator rides on the step 2 on the return route at the time of installation / maintenance and a load is applied. However, since the step 2 tilts and the follow-up roller 5 comes into contact with the follow-side rail 10, the step 2 does not fall off, and the work can be performed in substantially the same manner as the conventional example shown in FIG. 7. During normal operation, no load is applied to the steps 2 on the return route side, so that it is possible to maintain sufficiently stable running with only the three step rails 9 and 10.

Furthermore, in the first embodiment, the trailing side rail 10 is not in contact with the follower roller 5 at the return side inclined portion and the up and down curved portion, and the follower roller 5 is at the upper and lower horizontal portions.
However, such a path of the following-side rail 10 can be easily obtained by horizontally translating the conventional rail path that comes into contact with the following roller 5 along the entire path.
At this time, assuming that the inclination angle of the escalator is α, in order to set the distance dimension between the follower rail 10 and the follower roller 5 in the inclined portion to L, it is sufficient to perform the parallel movement by L / sin α. .

By taking such a rail route,
Designing and installing the tracking side rail 10 is easy,
Since there is no step at the connecting portion of the follow-up rail 10, the follow-up roller 5 can be smoothly moved from the non-contact state to the contact state, and the single follow-up rail 10 and the other follow-up rails 10 can have the same single-piece shape, which facilitates manufacture. .

Furthermore, the connecting portion of the follower rail 10 which is not in contact with the follower roller 5 does not normally receive the load of the step 2, and the load during installation and maintenance is also a static load. It suffices to connect only by the attached connecting plate 21, so that the structure of the connecting portion is simple and the whole is inexpensive. Further, as compared with the case where the follow-up rails 10 are not connected to each other, there is an advantage that the follow-up rail 10 is less likely to be distorted even when a load of the step 2 or an operator is applied during installation / maintenance.

Example 2. In the first embodiment, the inclined portion and the vertical bending portion of the follow-up side rail 10 on the return path are not in contact with the follow-up roller 5, but which portion of the follow-up rail 10 on the return path is relative to the follow-up roller 5. 5 may be non-contact with the follower roller 5, for example, as shown in FIG.

Further, in each of the above embodiments, the trailing side rail 10 is used.
Although a part of the return side of the drive side rail 9 is not in contact with the follower roller 5, a part of the drive side rail 9 on the return side may be in contact with the drive roller 4. Here, the step 2 is the chain 3
Drive roller 4 is pressed against the drive side rail 9 by the chain tension at the upper curved portion, it is preferable that the drive roller 4 is not in contact on the return path side except the upper curved portion.

Further, although the steps 2 are connected by the chain 3 in the above-mentioned respective embodiments, the present invention can be applied to the steps connected by other means such as a link.

Furthermore, in each of the above-described embodiments, a case where a total of four step rails are arranged has been shown, but the number of step rails may be five or more. In that case, the remaining step rails except at least three step rails may be used. At least a part of the return path can be arranged at a distance from the step roller.

In the above embodiments, the normal linear escalator has been described, but the present invention can be applied to various escalator such as curved escalator and wheelchair escalator, and the steps are supported by at least four step rails. The present invention can be applied to a moving walk as long as it guides.

[0031]

As described above, in the passenger conveyor according to the invention of claim 1, the remaining step rails except at least three of the step rails are provided on at least a part of the return side of the circulation path. Since the step rails in that part are not in contact with the step rollers during normal operation, the step rails can be partially finished easily during the normal operation. The cost can be reduced, and the structure of the connection part of the step rail can be partially simplified, which can facilitate the manufacturing and assembling and can reduce the cost as a whole.・ When a worker steps on the return step during maintenance, the step rollers come into contact with the step rail, which was not in contact during normal operation, and receive the load. - an effect such as can prevent maintenance reduction in safety and workability during.

The passenger conveyor according to the invention of claim 2 is
The remaining step rails except at least three of the step rails are arranged at intervals with respect to the step rollers at the slopes and up / down bends on the return side of the circulation path, and contact the step rollers at other portions. Since it is arranged at a position to
In addition to the effect similar to that of the invention described above, the rail path as described above can be obtained by simply translating the rail path that is in contact with the step roller along the entire path, and the rail path of the portion arranged at a distance from the step roller can be obtained. This has the effect of facilitating the design and installation of the step rail.

Further, in the passenger conveyor according to the third aspect of the present invention, the connecting portion of the step rail in the portion provided at a distance from the step roller is flush with the surface facing the outer peripheral surface of the step roller. In addition to the above effect, the connection plate attached to the side surface of the rail is used for the connection. Therefore, in addition to the same effect as that of the invention of claim 2, there is no step difference at the connection portion of the step rail. The transition from the non-contact state to the contact state can be made smoother, and the shape of the single step piece can be made the same as that of the other step rails.

Further, in the passenger conveyor according to the invention of claim 4, the step rail of the portion provided at a distance from the step roller is made of a non-polished material, and therefore, the invention of claim 1 is provided. In addition to the same effect, the manufacturing cost of the step rail can be effectively reduced.

The passenger conveyor according to the invention of claim 5 is
Since the surface of the step rail, which is provided at a distance from the step roller, facing the outer peripheral surface of the step roller is also coated, in addition to the same effect as the invention of claim 1, the step There is an effect that masking is partially unnecessary at the time of painting the rails, and thereby the manufacturing cost of the step rail can be effectively reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of an escalator according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a plan view showing a portion A of FIG.

4 is a sectional view taken along the line IV-IV of FIG.

FIG. 5 is a side view showing a relationship between a follower rail and a follower roller of an escalator according to another embodiment of the present invention.

FIG. 6 is a configuration diagram showing an example of a conventional escalator.

7 is a sectional view taken along the line VII-VII in FIG.

8 is a sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is a partial plan view of FIG.

10 is a cross-sectional view taken along the line XX of FIG.

[Explanation of symbols]

 2 steps 4 drive roller (step roller) 5 follower roller (step roller) 9 drive side rail (step rail) 10 follower side rail (step rail) 21 connection plate

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[Procedure amendment]

[Submission date] February 10, 1995

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

Claims (5)

[Claims] 1. A man conveyor which is provided along a circulation path of a step and is provided with at least four step rails for supporting and guiding step rollers, wherein the step is provided at least at a part of a return side of the circulation path. A man conveyor characterized in that the remaining step rails except at least three of the rails are provided at intervals with respect to the step rollers. 2. At least four steps which are provided along a circulation path of a step having an inclined portion, an upper and lower horizontal portion and an up and down curved portion between the inclined portion and the upper and lower horizontal portion and which support and guide the step roller. In a passenger conveyor provided with step rails, the remaining step rails except at least three of the step rails are spaced apart from the step rollers at the return-side inclined portion and the up-and-down curved portion of the circulation path. The man conveyer, which is provided at a position where it comes into contact with the step rollers in other portions. 3. A step rail connecting portion, which is provided at a distance from the step roller, has a surface facing the outer peripheral surface of the step roller and is attached to a side surface. The passenger conveyor according to claim 2, wherein the passenger conveyor is connected by a connecting plate. 4. The man conveyor according to claim 1, wherein the step rails provided at a distance from the step rollers are made of a non-polished material. 5. The step rail, which is provided at a distance from the step roller, is coated on a surface facing the outer peripheral surface of the step roller. The passenger conveyor according to any one of claims 2 and 4.