JP2774931B2 - Man conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

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

FIG. 7 is a sectional view taken along the line VII-VII of FIG. In the figure, a vertical member 8 provided on a truss 1 has a driving side rail 9 which is a step rail for supporting and guiding a pair of driving rollers 4 on an outward path and a return path.
a, 9b, 9c, 9d and four following rails 10a, 10b, 10c, 10d, which are step rails for supporting and guiding the pair of following rollers 5 on the forward and return sides, respectively, are welded and fixed. I have. These step rails 9a,
9b, 9c, 9d, 10a, 10b, 10c, 10d
Is usually made of a material having high rigidity in order to support the repetitive load by the step rollers 4 and 5, and its roller contact surface is finished in a smooth state to prevent vibration and noise.

FIG. 8 is a sectional view taken along 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 line XX of FIG. is there. In the figure, a rail connection device 11 is provided at the connection portion of the follow-up side rail 10c on the return side.
Is provided. The rail connection device 11 has first to third connection fittings 11a to 11c. The follower rail 10c is received from the lower surface of the connection portion so that the connection portion can sufficiently support a load. Connected. Further, although not shown, the connection portion is connected to the follow-up side rail 10d and the drive side rails 9c, 9d on the return side in substantially the same structure.

[0005]

In the conventional escalator configured as described above, each step rail 4, 5
In order to finish the roller contact surface smoothly, an expensive polished angle is used as a rail material, and at the time of painting, it is necessary to mask to prevent paint from adhering to the roller contact surface, which is a considerable There was a problem that it took time and effort. Furthermore, each step rail 9c, 9
Although the rail connection device 11 is used for the connection portions of the steps d, 10c, and 10d, the connection fittings 11a to 11c are used in order to sufficiently receive the load applied to the step rail at the connection portions.
However, there is also a problem that the number of parts increases, and the time required for manufacturing, assembling and installing the components increases.

On the other hand, Japanese Unexamined Utility Model Publication No. 60-56674 discloses a curved escalator in which one of the trailing side rails on the return side is omitted. When the worker removes the step on the outbound side and works on the step on the return side, there is a risk that the step may fall off due to the position of the center of gravity of the worker, and the safety is low.Therefore, the worker always stays on the position on the step. Attention must be paid, and there has been a problem that the working efficiency is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and can reduce the manufacturing cost of the step rail and simplify the structure of the connecting portion of the step rail. It is an object of the present invention to provide a man conveyor that can facilitate manufacturing and assembling, reduce the overall cost, and prevent a decrease in safety and workability during installation and maintenance work. I do.

[0008]

According to a first aspect of the present invention, there is provided a man conveyor having at least one step roller at each of front, rear, left and right, a plurality of steps which are connected endlessly and circulate, and a return path of the steps. Conveyor having a plurality of step rails provided on the side and supporting and guiding the step rollers, the step rail provided on the return side of the step includes at least three step rollers provided on the left and right sides of the step. At least three first step rails provided so as to be in contact with each of the step rollers over their entire length, and at least a part of the second step rail provided at a predetermined distance from the step rollers. doing.

A man conveyor according to a second aspect of the present invention is provided with one step roller at each of the front, rear, left and right sides, a number of steps which are connected endlessly and circulate, and are provided at the return side of the step. In the conveyer having four step rails for supporting and guiding each other, the step rail provided on the return side of the step includes three first step rails provided so as to contact the step rollers over the entire length, At least one part has one second step rail provided at a predetermined distance from the step roller.

According to a third aspect of the present invention, the step circulates along a circulation path having an inclined portion, an upper and lower horizontal portion, and a vertically bent portion between the inclined portion and the upper and lower horizontal portion. The rail is provided at a predetermined distance from the step roller at the inclined portion and the bent portion of the circulation path, and is provided so as to contact the step roller at other portions.

According to a fourth aspect of the present invention, the connecting portion of the portion provided at a predetermined distance from the step roller of the second step rail has a surface facing the outer peripheral surface of the step roller. Are flush with each other and are connected by a connection plate attached to a side surface opposite to the facing surface.

According to a fifth aspect of the present invention, the portion provided at a predetermined distance from the step roller of the second step rail is made of a non-polished material.

According to a sixth aspect of the present invention, in the man conveyor, a portion of the second step rail provided at a predetermined distance from the step roller is coated with a coating on a surface facing the outer peripheral surface of the step roller. It has been subjected.

[0014]

According to the first aspect of the present invention, by making a part of the step rail non-contact with the step roller on the return side where the load of the passenger is not applied during the normal operation, the finishing of the step rail is simplified. Can be installed and
When the worker gets on the step on the return path during maintenance, the step roller comes into contact with the step rail that was not in contact during normal operation and receives a load.

According to the second aspect of the present invention, by making a part of the step rail non-contact with the step roller on the return side where the load of the passenger is not applied during the normal operation, the finish of the part of the step rail is simplified. If a worker gets on the return side step during installation / maintenance,
The step roller comes into contact with the step rail that was not in contact during normal operation and receives a load.

According to the third aspect of the present invention, the path on the return path side of the step rail is translated in a horizontal direction.
The step rail can be arranged at a distance from the step roller at the inclined portion and the vertical curved portion on the return side, and can be arranged at a position where the step rail contacts the step roller at other portions.

In the invention according to claim 4, 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 parts with a connecting plate having a simple structure, the whole becomes inexpensive.

According to the fifth aspect of the present invention, the step rail is made of a non-polished material, thereby reducing material costs.

According to the sixth aspect of the present invention, the coating is applied to the surface of the step rail facing the outer peripheral surface of the step roller, so that masking at the time of coating is omitted and manufacturing is facilitated.

[0020]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. Embodiment 1 FIG. FIG. 1 is a sectional view of an escalator according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and the same or corresponding parts as those in FIGS. And the description is omitted.

In the figure, the escalator of this embodiment is
On the return side of the circulation path, that is, on the lower side of FIG.
One of the following rails 10c, which is the second step rail,
It is arranged at a predetermined distance from the follow-up roller 5 and is not in contact with the follow-up roller 5. The follower rail 10c is disposed at a predetermined distance from the follower roller 5 at the inclined portion and the upper and lower curved portions on the return route, and is provided at other portions including the upper and lower horizontal portions on the return route. Are arranged to be in contact with each other. And the following rail 1
A non-polishing material having a rough surface, that is, a normal angle material is used in a portion of the non-contact portion of the follow-up roller 5 with 0c. Further, the entire surface of the trailing-side rail 10c that is not in contact with the following roller 5 is coated, including the surface facing the outer peripheral surface of the following roller 5. Other step rails 9a, 9b, 9c, 9d, 10a, which are first step rails,
10b and 10d are provided so as to be in contact with each roller over the entire length as in the conventional case.

FIG. 3 shows a connecting portion (A in FIG. 2) of a portion of the following rail 10c of FIG. 2 which is not in contact with the following roller 5.
4) is a cross-sectional view taken along the line IV-IV in FIG. In the figure, the connecting portion of the follower side rail 10c in a non-contact portion with the follower roller 5 has a flat surface facing the outer peripheral surface of the follower roller 5 without any step and is bolted to the side surface. For example, they are connected by a connection plate 21 made of a steel plate.

In the escalator configured as described above, since one of the follower rails 10c is not in contact with the follower roller 5 at a part of the return path, the follower rail 10c at that portion is polished. It is possible to use inexpensive angle materials that have not been subjected to the above. In addition, the step rails that come into contact with the step rollers 4 and 5 need to be masked at the time of painting in order to finish the roller contact surface smoothly, but do not contact the following roller 5 of the following rail 10c. It is possible to apply the coating to the entire surface without masking. Therefore, the manufacturing cost is reduced as a whole.

The follower rail 10c and the follower roller 5
Is small (for example, about 5 mm), even if a worker rides on the step 2 on the return path during installation and maintenance and a load is applied, the step 2 tilts and the following roller 5 follows the step. Since the step 2 comes into contact with the side rail 10c, the steps 2 do not fall off, and the work can be performed in substantially the same manner as in the conventional example shown in FIG. During normal operation, return step 2
Since no load is applied to the three step rails 9c,
A sufficiently stable running can be maintained only by 9d and 10d.

Further, in the first embodiment, the trailing side rail 10c is not in contact with the follow-up roller 5 at the return-side inclined portion and the vertical curved portion, and is in contact with the follow-up roller 5 at the vertical and horizontal portions. However, such a path of the following rail 10 can be easily obtained by horizontally moving a conventional rail path that contacts the following roller 5 in all directions. At this time, assuming that the inclination angle of the escalator is α, in order to set the distance between the follower rail 10c and the follower roller 5 at the inclined portion to L, the above parallel movement by L / sinα is required. .

By taking such a rail route,
The design and installation of the follower rail 10c is facilitated, and the step of the connecting portion of the follower rail 10c is eliminated, so that the transition from the non-contact state to the contact state of the follower roller 5 becomes smooth, and the other follower rail 10c Since it can be made the same as a single product, it is easy to manufacture.

Furthermore, the connecting portion of the trailing side rail 10c in a portion not in contact with the following roller 5 is normally not subjected to the load of the step 2, and the load at the time of installation and maintenance is a static load.
It suffices to connect only with the connection plate 21 attached to the side surface, so that the structure of the connection portion is simple and the whole is inexpensive. Further, compared with the case where the following rails 10c are not connected to each other, there is an advantage that the following rail 10c is less likely to be distorted even when a load of the steps 2 or an operator is applied during installation and maintenance.

Embodiment 2 FIG. In the first embodiment, the inclined portion and the vertical curved portion of the trailing-side follow-up rail 10c are not in contact with the follow-up roller 5; For example, as shown in FIG. 5, only a part of the inclined portion may be lowered to make no contact with the following roller 5.

Further, in each of the above embodiments, a part of the trailing-side follow-up rail 10c is not in contact with the follow-up roller 5, but a part of one of the return-side drive-side rails 9c and 9d is connected. The drive roller 4 may be in non-contact. Here, when the steps 2 are connected by the chain 3, the drive roller 4 is pressed against the drive side rails 9c and 9d by the chain tension in the upper curved portion.
It is preferable that contact is not made on the return side except for the upper curved portion.

Further, in each of the above embodiments, the steps 2 are connected by the chain 3, but the present invention can be applied to those connected by other means such as a link.

Further, in each of the above-described embodiments, the case where a total of four step rails are arranged on the return side is shown. However, five or more step rails may be provided, and in that case, at least three are excluded. The remaining step rails can be arranged at least partially at a distance from the step rollers.

In each of the above embodiments, a normal straight escalator has been described. However, the present invention can be applied to various escalators such as a curved escalator and an escalator for a wheelchair. The present invention can be applied to a moving sidewalk as long as it supports and guides.

[0033]

As described above, the man conveyor according to the first aspect of the present invention is provided with at least one step roller at each of the front, rear, left, and right sides, and includes a number of steps which are connected endlessly and circulate, and In a man conveyor provided on the return path side and having a plurality of step rails for supporting and guiding the step rollers, the step rail provided on the return side of the step includes at least two step rollers provided on the left and right sides of the step. 3
At least three first step rails provided so as to contact the step rollers at their entire lengths;
And the second step rail provided at a predetermined distance from the step roller at the section, so that the step rail at that portion becomes non-contact with the step roller during normal operation, and The finishing can be partially simplified, the manufacturing cost of the step rail can be reduced, and the structure of the connecting portion of the step rail can be partially simplified, thereby facilitating the manufacturing and assembly. In addition, when the operator steps on the return step during installation and maintenance, the step rollers contact the step rail that was not in contact during normal operation, and the load is reduced. As a result, the steps are prevented from falling off, and effects such as a reduction in safety and workability during installation and maintenance work can be prevented.

Further, the man conveyor according to the second aspect of the present invention is provided with one step roller at each of the front, rear, left and right, a number of steps which are connected endlessly and circulate, and are provided on the return side of the steps. In a man conveyor having four step rails each of which supports and guides a step roller, the step rail provided on the return side of the step includes three first step rails provided so as to contact the step rollers over the entire length. And at least one part of the second step rail provided at a predetermined distance from the step roller, so that during normal operation, the step rail of that part is not in contact with the step roller. This makes contact and therefore the finishing of the step rail partly simpler, the manufacturing cost of the step rail can be reduced and the structure of the connecting part of the step rail is partially simplified. This makes it easier to manufacture and assemble and lowers the overall cost.In addition, if a worker steps on the return step during installation / maintenance, there is no contact during normal operation. Since the step roller is brought into contact with the step rail and receives the load, the steps are prevented from falling off, and the safety and workability during installation and maintenance can be prevented from being reduced.

According to a third aspect of the present invention, there is provided a man conveyor, wherein the steps circulate and move on a circulation path having an inclined portion, an upper and lower horizontal portion, and an upper and lower bent portion between the inclined portion and the upper and lower horizontal portion.
Since the second step rail is provided at a predetermined interval from the step roller at the inclined portion and the bent portion of the circulation path, and is provided so as to come into contact with the step roller at other portions,
In addition to the same effects as those of the first aspect of the present invention, the above-described rail path can be obtained only by moving the rail path in contact with the step roller on all the paths in parallel, and the rail path is arranged at an interval from the step roller. This has the effect of facilitating the design and installation of the step rail of the part to be formed.

Further, in the man conveyor according to the fourth aspect of the present invention, the connecting portion of the portion provided at a predetermined distance from the step roller of the second step rail faces the outer peripheral surface of the step roller. Since the connecting surfaces are flush with each other and are connected by the connecting plate attached to the side surface opposite to the opposing surface, in addition to the same effect as the invention of the second aspect, the connection of the step rails There is no difference in level, so that the transition of the step rollers from the non-contact state to the contact state is smooth, and the shape of a single unit can be made the same as the other step rails.

Furthermore, in the man conveyor according to the fifth aspect of the present invention, the portion provided at a predetermined distance from the step roller of the second step rail is made of a non-polished material. In addition to the same effects as the first aspect of the present invention, there is an effect that the manufacturing cost of the step rail can be effectively reduced.

In the man conveyor according to the sixth aspect of the present invention, the portion of the second step rail provided at a predetermined distance from the step roller is coated with a coating on the surface facing the outer peripheral surface of the step roller. Since it is applied, in addition to the same effect as the first aspect of the present invention, masking is partially unnecessary at the time of painting the step rail, whereby the manufacturing cost of the step rail can be effectively reduced. It works.

[Brief description of the 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 in FIG.

FIG. 3 is a plan view showing a portion A in FIG. 2;

4 is a sectional view taken along the line IV-IV in 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 illustrating an example of a conventional escalator.

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6;

FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 7;

FIG. 9 is a partial plan view of FIG. 8;

FIG. 10 is a sectional view taken along line XX of FIG. 9;

[Explanation of symbols]

2 Step 4 Drive roller (step roller) 5 Follow roller (step roller) 9a, 9b, 9c, 9d Drive side rail (first step rail) 10a, 10b, 10d Follow side rail (first step rail) 10c Follow Side rail (second step rail) 21 Connecting plate

──────────────────────────────────────────────────の Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B66B 23/14

Claims (6)

(57) [Claims] At least one step roller is provided at least in front, rear, left and right, a number of steps that are connected endlessly and circulate, and a plurality of steps that are provided on the return side of the step and support and guide the step rollers, respectively. The step rail provided on the return side of the step contacts at least three of the step rollers including two of the step rollers provided on the left and right of the step in a full length. At least three first step rails provided as described above, and a second step rail provided at least in part at a predetermined distance from the step roller. Man conveyor. 2. One step roller is provided at each of front, rear, left and right, a number of steps which are connected endlessly and circulate, and four steps which are provided on the return side of the step and support and guide the step rollers, respectively. A step rail provided on the return side of the step, three first step rails provided so as to be in contact with the step rollers over the entire length, and at least a part of the step rail, A man conveyor comprising: one second step rail provided at a predetermined distance from a step roller. 3. The step moves in a circulating path having an inclined portion, an upper and lower horizontal portion, and an upper and lower bent portion between the inclined portion and the upper and lower horizontal portion. The manway according to claim 1 or 2, wherein a predetermined distance is provided from the step roller at the inclined portion and the bent portion of the path, and the other portion is provided so as to contact the step roller. Conveyor. 4. A connecting portion of a portion of the second step rail provided at a predetermined distance from the step roller has a surface facing the outer peripheral surface of the step roller flush. The man conveyor according to any one of claims 1 to 3, wherein the conveyer is connected by a connection plate attached to a side surface opposite to the facing surface. 5. The portion of the second step rail provided at a predetermined distance from the step roller is made of a non-polished material.
5. The man conveyor according to any one of items 1 to 4. 6. A portion of the second step rail provided at a predetermined distance from the step roller is provided with a coating on a surface facing an outer peripheral surface of the step roller. A man conveyor according to any one of claims 1 to 5, characterized in that: