JPS595513B2 - Manufacturing method of man conveyor steps - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing steps of a passenger conveyor such as an escalator, and particularly to a structure that can improve the accuracy of the surface member.

Recently, the field of use of passenger conveyors has expanded from general department stores and shopping stores to urban transportation facilities.
The actual usage conditions are also becoming harsher than expected.

In particular, on passenger conveyors for urban transportation where commuters and the like are concentrated, there are occasional cases where passengers climb up the steps or jump over several steps before getting off.

For this reason, the conventional step format, which was designed with well-behaved customers in mind, cannot cope with the current usage situation.

On the other hand, all-weather type passenger conveyors installed on pedestrian bridges and the like have come to be required to have excellent durability that can withstand all kinds of weather environments, and we are now facing a time when strength and durability should be reconsidered.

A man conveyor that can meet the recent needs mentioned above.
In particular, the present inventors have already proposed a significantly improved invention regarding steps.

The contents include the configuration of the endless step 1 shown in Figs. This is a rotating body consisting of a moving front roller 5 and a rear roller 6, a driving chino 7, a guide rail 8, a front shaft 9, a rear shaft 10, etc., and in particular, the cleat 2 or riser 3 on the surface thereof is improved. .

In detail, as shown in Figure 2, a representative example of the cleat 2 is made of aluminum alloy (generally made by precision die-casting). The cleat 11 is made of a thin plate of stainless steel or steel plate formed into a wave shape, and the cleat 11 is intended to have the same function as the conventional one.

In this case, as shown in FIG. The A and B directions are for precisely forming the distance Pa between the convex portions 11a while applying press pressure.

Here, the accuracy of the interval Pa is ±0.1 to 0.1 to 8 mm for Pa = 4 to 8 mm, since this step itself is configured to mesh with the comb at the entrance (leopard shown in the figure) when a large number of steps are connected. It has no choice but to have ultra-precise dimensions of 0.3 mm.

However, the forming method in which press pressure is simply applied from the directions of arrows A and B shown in FIG.

In particular, the convex portion 11a of the cleat is 95~
Since there are 130 locations, assuming that there is a miscalculation of 0.1 mil between the adjacent protrusions 11a, the total will be 9.
A cumulative error of 5 to 13 millimeters occurs, making it impossible to put it to practical use.

The above defects are also common to the riser part, and the Cree-N1a, which has excellent durability (stainless steel has particularly excellent corrosion resistance, and its strength is said to be over 20,000 times that of aluminum alloy)
and steps using risers have not yet been commercialized.

In view of the above points, the present invention has been made in order to improve the precision of the cleat protrusion and the riser protrusion, thereby achieving the purpose of passenger protection.

An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 5 and 6, the basic structure of the step, ie, the bracket, front roller, rear roller, etc., is completely the same as the conventional one, so illustration can be omitted. I show it with an imaginary line.
The feature is that J-N2 (distance Pa between convex portions 11a) is corrected to a predetermined distance P at the time of fixed bonding to the back plate 13 which also serves to maintain the strength of the entire step.

Here, the back plate 13 is arranged with the main purpose of ensuring the distance P, and the cleat 12 joined to it is Pb>P when it is alone, and there is a difference of only δ from the predetermined distance P. If it is assumed that a
Electrodes are inserted from the directions of arrows Y and X to electrically connect them.

In this way, each convex portion 12a is joined one after another to form a step with a predetermined precision.

On the other hand, if Pb<P, it goes without saying that they are joined in the opposite direction to the arrow C.

Note that the junction points Z are not all necessary between each convex portion, and may be arranged at intervals of about 2 to 10.

The cleat 12 and the back plate 13 are joined in the manner described above, and the form shown in FIG. 6 is finally obtained, and the method described above can also be applied to the riser (not shown) portion.

, Here, the present invention also has the following improvements.

Since the back plate 13 mentioned above covers almost the entire surface of the IJ-N 2, it is heavy, and there is a concern that it will hinder assembly and maintenance work.

For this reason, as shown in FIG. 7, back plates 14, 15 and 16 are provided only at both ends and the center of the cleat 12,
The aim is to achieve significant weight reduction.

By the way, apart from FIG. 7, if we explain the case where the back plates 17 and 18 shown by the width W in FIGS. Since only the parts are moved toward the arrows and E, the problem shown in the figure occurs.

This is a state where the position of the bending lines M and N is not secured near the center of the IJ-to 12, and the position of the bending lines M and N is not secured near the center of the joint point Z.
This shows that the error gradually increases in the areas without .

Therefore, in the present invention using a corrugated body made of stainless steel or the like, it is essential that the back plate be disposed at least at both ends and the center, preferably over the entire back plate of the IJ-toe 12.

According to the present invention described above, there is an advantage that a step with excellent durability and high precision can be provided.

Although the above explanation has mainly focused on the cleat portion, it goes without saying that one riser on the rear surface can also be applied, and the configuration of the back plate is not limited to the illustrated one.

As shown in Figure 9, the configuration of the back plate is as shown in Figure 9, by inserting the convex back plate made at precise intervals into the recesses from the back side of the cleat. It may also be something that ensures space.

Further, according to this configuration, the convex back plate serves as a strength member, and the cleat K can be made as thin as possible.

Furthermore, the connection between the cleat and the back plate is not limited to the illustrative spot welding, but may also be performed using screws or the like.

[Brief explanation of the drawings] Figure 1 is a perspective view of a conventional step for a passenger conveyor;
The figure is a cross-sectional view taken along line I-I in Figure 1, Figure 3 is a cross-sectional view of the improved structure of Figure 2, Figure 4 is a perspective view explaining the manufacturing situation of the parts in Figure 3, and Figure 5 is a cross-sectional view taken along line I-I in Figure 1. The following figures show one embodiment of the present invention, and FIG. 5 is a sectional view of a portion corresponding to FIG.
Fig. 6 is a perspective view of Fig. 5 seen from above, Fig. 7 is a plan view showing an improved state of Fig. 6, Fig. 8 is a plan view illustrating defects in other methods, and Fig. 9 is FIG. 7 is a sectional view showing another example. 1... Step, 2... Cleat, 3
...Riser, 4...Bracket, 12
...... Cleat, 13°14.15,16. to 2
...Back board.

Claims (1)

[Scope of Claims] 1. In a step of a passenger conveyor that is composed of a cleat portion on which a passenger rides, a bracket added to the cleat portion, etc., the cleat portion is formed by molding a thin stainless steel plate into a wave shape, and , a back plate located at least at the center and both ends of the cleat part is provided on the back surface of the cleat part, and the cleat part is fixedly attached to the back plate while ensuring a space for the convex part of the cleat part. A method for manufacturing a step of a passenger conveyor, characterized in that the step is joined to a step of a passenger conveyor. 2. Manufacture of a step for a passenger conveyor according to claim 1, wherein the back plate is configured to have a convex shape that fits into a recess of a cleat portion or a riser portion made of the corrugated molded body. Method.