JPS61243793A - Guide apparatus for step board of passenger conveyor - 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 [Field of Industrial Application] The present invention relates to a device for guiding the treads of a passenger conveyor such as an escalator or a moving passage.

[Conventional technology]

The passenger conveyor is a vehicle in which a treadle mounted on an endless treadle chain moves, and the treadle is provided with a treadle shaft, which is driven by the treadle chain. A guide wheel is attached to the tread shaft, and this guides the tread by rolling on the guide rail.However, at the upper curve of the escalator, instead of guiding the guide wheel by the guide rail, the tread chain is moved by the guide strip. There is something that is supported by this.

Figures 6 to 8 are diagrams showing a conventional passenger conveyor tread guide device disclosed in, for example, Japanese Patent Laid-Open No. 58-74479, in which Figure 6 is a configuration diagram and Figure 7 is a longitudinal cross-section of a truss section. The plan view and FIG. 8 are enlarged perspective views of the guide rail connecting portion.

In the figure, (1) is a truss that forms the skeleton of the passenger conveyor;
(2) is a drive machine installed on the upper floor of truss (1).

(3) is a drive chain gear driven by drive machine (2);
(41 is the driven chain gear installed on the lower floor of the truss (1), (5) is the tread chain wrapped around the drive chain gear (3) and the driven chain gear (4), (6) is the tread chain (5) is a tread plate attached to a tread shaft (not shown) connected to the tread plate; (7) is a guide rail that rolls and guides guide wheels (not shown) attached to both ends of the tread plate shaft; (7a) Guide rail (
7) Mutual connection part, (8) is a triangular filler inserted in the connection part (7a), (9) is provided on the upper curved part of the truss (1) and supports the n tread chain (5) This is a guide strip.

A conventional passenger conveyor tread guide device is constructed as described above, and a drive chain gear (3) is driven by a drive machine (2).
Then, the tread chain (5) rotates, and tread +6) F1! It is guided by the guide rail (7) and driven. Further, in the upper curved section, the tread chain (5) is guided by the guide strip (9).

By the way, the distance between the driven chain gear (3) and the driven chain gear (41) is usually about 10 meters.
7) has a standard length of 5 meters, so the drive chain gear (3)
and the guide rail () installed between the driven chain gear (4)
must be connected in the middle of truss (1). However, manufacturing errors occur in the truss (1), which is several tens of meters long, and errors in the distance between the driving chain gear (3) and the driven chain gear (41) and the length error of the guide rail (7) occur. As a result, a gap will be created in the connecting part (7a) of the guide rail (7).The filler (8) is used to adjust this gap, and using the hypotenuse of the triangle, it is placed on the transfer surface of the guide wheel. K is applied so that there are no gaps.

[Problem that the invention seeks to solve]

In the conventional passenger conveyor tread guide device as described above,
A filler metal (8) for adjusting the gap (7a) is required at the connecting portion of the guide rail (7). If there is a difference in level between the filler (8) and the guide rail (7), vibrations will be transmitted to the treadle (6) through the guide wheel and cause discomfort to the two passengers. There is a problem in that it takes time and effort to adjust the guide rail (7) so as to eliminate the level difference.

This departure F! Mine A This was done to solve the above problem, and even if there is a gap in the connecting part of the guide rail, there is no need for materials such as fillers to adjust it, and the time required to correct one level difference can be omitted. An object of the present invention is to provide a tread guide device for a passenger conveyor.

[Means for solving problems]

In the tread guide device for a passenger conveyor according to the present invention, the guide wheels attached to the tread shafts move the joints between the guide rails on which they roll, to the side positions of the guide strips that support the tread chains connected to the tread shafts. This is what was placed.

[Effect]

In this invention, D1. Since the connecting portions between the guide rails are arranged in the guide strip portion and support the nine guide strip expansion plate chains, no load is applied to the guide wheels rolling on the guide rails in this portion.

〔Example〕

Figures 1 to 4 and 6 are views showing one embodiment of the present invention, in which Figure 1 is a perspective view of the guide rail connection section, Figure 2 is a plan view, and Figure 3 is the same (side view). 4 are sectional views of main parts, (1) to (7), and (7a).

(9) is similar to the conventional device described above.

In the figure, I is attached to the lower part of the tread plate (6) and extends outward, and υ is attached to both ends of the tread plate shaft I and is attached to the guide rail (7).
), in which the guide rails (7) and the interconnecting portions (7a) of the guide rails (7) are arranged at lateral positions of the guide strips (9).

In the passenger conveyor tread guide device configured as described above, since the connecting portion (7a) between the guide rails (7) is located on the side of the guide strip (9), the tread board (6) The load is supported by the guide strip (9).

Guide wheel aaKFi load is not applied. 6. Therefore, even if there is a gap in the mutual connection part (7a) of the guide rail (7).

There is no need to eliminate the gap with the filler metal (8), and the number of parts can be reduced by two. Moreover, the time for one step differential pressure can be omitted. Then, during installation, if the guide rails (7) are connected sequentially from the bottom of the truss and the H gaps are concentrated on the guide strip (9), the filler metal (8) can be used to fill in the connecting part (7a) in the middle. is not necessary,
There is no need to adjust the gap associated with this.

FIG. 5 is a diagram showing another embodiment of the present invention, in which the mutual connecting portion (7a) of the guide rail (7) is provided at the upper curved portion of the guide rail (7) in FIG. Against.

In this embodiment, it is provided in a straight section. In addition.

In Figure 5, the upper end of the guide rail (7) is rounded (7b).
is formed.

Even if the connecting portion of the guide rail ( ) is provided in the straight portion in this way, its function is exactly the same as described above as long as it is disposed on the side of the guide strip (9). Note that the roundness (7b) is designed to ensure that there is no contact with the guide ring z at the connecting portion (7a).

In the embodiment, an escalator has been described, but the present invention can also be applied to a moving passage.

[Effects of invention]

As explained above, in this invention, the connecting portion between the guide rails on which the guide wheels attached to the tread shaft of a passenger conveyor roll is connected to the lateral position of the guide strip supporting the tread chain connected to the tread shaft. Because I placed it in .

Even if a gap occurs in the connecting portion of the guide rail, there is no need for a member to adjust the gap, and there is an effect that the time and labor required to correct a one-level difference can be eliminated.

[Brief explanation of drawings]

1 to 4 are diagrams showing an embodiment of the tread guide device for a passenger conveyor according to the present invention, in which FIG. 1 is a perspective view of a guide rail connecting portion, FIG. 2 is a plan view, and FIG. Similarly, FIG. 4 is a sectional view taken along the line ■-IV in FIG. 2, FIG. 5 is a side view showing another embodiment of the present invention, a view corresponding to FIG. 3, and FIG. Fig. 1 is a longitudinal sectional view of the truss part of Fig. 6 showing the tread guide device of a conventional passenger conveyor, and Fig. 8 is the guide rail of Fig. 7. FIG. 3 is an enlarged perspective view of a connecting portion. In the figure, (6) is a tread chain, (6) a is a tread, and () is a guide rail. (7a) is the guide rail connection part, (9) is the guide strip, al
) is the tread shaft, and a is the guide wheel. Note that the same reference numerals in the two figures indicate the same or equivalent parts.

Claims (1)

[Claims] A tread shaft with a tread mounted thereon is connected to a rotating tread chain formed in an endless shape, and a guide wheel mounted on the tread shaft is connected to the tread shaft.
In an apparatus in which the treadle is guided by rolling on a plurality of connected guide rails and the treadle chain is supported by a guide strip provided at a predetermined position to operate the treadboard, the connecting portion between the guide rails is connected to each other. A tread guide device for a passenger conveyor, characterized in that it is disposed at a side position of the guide strip.