JPS5830234B2 - Guide for handrail of passenger conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a passenger conveyor such as an escalator or an electric road, and particularly to a structure suitable for reducing running resistance of a rotating handrail.

As shown in FIGS. 1 and 2, a conventional passenger conveyor has a structure in which a parapet 2 is disposed above steps 1 which are arranged in an endless manner and rotate, and a frame 3 and a guide 4 at the upper end of the parapet 2. The most common method is to guide the handrail (traveling body) 5 with the guide.

Since the step 1 and the handrail 5 are directly used by passengers, they are required to maintain their aesthetic appearance for a long time and to run smoothly at all times as essential functions.

However, the conventional handrail 5 portion has the following problems, and a solution to these problems is desired.

That is, the guide 4 is supported at the upper end of the opening of the frame 3 and is fixed with a fastening bolt 6, but at the joint in the longitudinal direction of the guide 4, as shown in FIGS. 3 and 4, A phenomenon occurs.

This phenomenon of uneven height is caused by a problem when assembling the passenger conveyor, but there is a structural constraint that forces the head 6a of the fastening bolt 6 to separate from the bolt 6b. This is also due to the problem of not being able to prevent the guide 4 from moving laterally.

The step difference δ caused by the above causes a collision phenomenon as shown by arrows A and B (different depending on the running direction) when the handrail 5 runs, resulting in an increase in the running resistance of the handrail 5.

Such an increase in running resistance may cause problems with the service life of the handrail 5 due to excessive force applied thereto, or may cause discomfort during running due to a collision phenomenon at the step δ portion.

For this reason, although chamfering X has conventionally been applied as a measure to reduce the step difference δ, the actual situation is that the effect is not as expected.

In view of this point, an object of the present invention is to provide a guide for a handrail of a passenger conveyor that has smooth joints in the guide and allows the handrail to run smoothly.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In Figures 5 and 6, the parapet 2 and handrail 5
Although the configurations such as the above are the same as those of the conventional one and can be omitted from the drawings, in the present invention, a groove 7a having a width W1 is provided in the center of the upper surface of the guide 7 (corresponding to the conventional guide 4), and a groove 7a is installed in this groove 7a. The joint plate 8 is fitted into the frame 3, and a convex portion 7b that protrudes downward and fits into the opening 3a of the frame 3 is provided at the center of the lower surface.

Here, the relationship between the groove width W1 and the width W2 is W, >W2 (Wl is slightly dog), and the joint plate 8 is tightly fitted into this groove 7a.

On the other hand, the lower side of the guide 7 is configured such that the convex portion 1b fits into the opening of the frame 3.

Furthermore, the joint plate 8 is provided with a fastening bolt (conventional fastening bolt 6
A hole 8a through which a hole 8a (similar to the above) passes is provided as necessary.

Here, to explain how to assemble the guide 7a, first,
The convex portion 7b is fitted into the upper end opening of the frame 3, and then a joint plate is inserted into the groove 7a at the joint portion of each guide 7 and fixed with a rear fastening bolt.

In this case, the guide T is restricted from moving to the left or right at the opening 3a of the frame 3, and each guide 7 is positioned by the joint plate 8 to ensure its straightness as if it were a long, integrated piece. It is something that

By doing this, the increase in the resistance force of the handrail 5 is completely eliminated.

According to the present invention described above, the handrail 5 runs smoothly and is effective in terms of its lifespan and riding comfort.

[Brief explanation of the drawing]

Figure 1 is a side view of the upper part of a conventional passenger conveyor;
The figure is a sectional view taken along line I-I in Figure 1, Figure 3 is a perspective view showing the joint part of the guide that guides the handrail, and Figure 4 is a plan view taken along line ■-■ in Figure 3. FIG. 5 shows an embodiment of the present invention, and is a perspective view corresponding to the conventional one shown in FIG. 3, and FIG. 6 is a plan view taken along the line ■--■ in FIG. 1...Step, 3...Frame, 4
...Guide, 5...Handrail, 7
...Guide, 7a...Groove, 7b...
...Protrusion, 8...Joint plate.

Claims (1)

[Claims] 1. In a device equipped with endlessly arranged and rotating steps, a handrail that rotates synchronously with the steps, a frame and a guide that guide and support the handrail, a groove is provided on the upper surface of the guide, A guide for a handrail of a passenger conveyor, characterized in that a joint plate is fitted into the groove, and a protruding portion is provided on the lower surface of the guide so as to fit into the upper end of the frame.